Follow us on Twitter
twitter icon@FreshPatents


Flicker patents

      

This page is updated frequently with new Flicker-related patent applications.

Techniques for optical wireless communication
Optical wireless communication techniques are described and claimed. In one embodiment, the disclosure relates to method and apparatus to provide optical signaling with visible light having variable pulse position modulation (vppm).
Intel Corporation


Imaging apparatus, flicker detection method, and flicker detection program
Provided are an imaging apparatus, a flicker detection method, and a flicker detection program that can accurately detect a flicker even in a case in which an image of a bright object is captured. A digital camera directs a mos imaging element 5 to perform a plurality of imaging operations at an arbitrary frame rate and compares captured image signals which are read from the imaging element 5 for frame periods f1 and f2 based on the frame rate to detect whether a flicker has occurred.
Fujifilm Corporation


Methods and devices for correcting video flicker
The present disclosure provides a method and device for correcting video flicker. The method comprises: performing statistics on grayscale values of a previous frame of video image to obtain a histogram of the grayscale values of the previous frame of video image; determining correction weights for correcting grayscale values of a next frame of video image according to the histogram; and correcting the grayscale values of the next frame of video image according to the correction weights.
Boe Technology Group Co., Ltd.


Electric candle having flickering effect
Various designs of electronic lighting devices are disclosed. Contemplated electronic lighting devices comprise a housing, a base, and a light source holder.
Luminara Worldwide, Llc


Chopper stabilized comparator for successive approximation register analog to digital converter
The disclosure includes an analog to digital converter (adc). The adc includes a comparator to compare sample values of an analog signal in an analog domain to reference values to determine digital values in a digital domain.
Avnera Corporation


Flicker control circuits for liquid crystal devices
A flicker control circuit of liquid crystal devices (lcds) includes a main control chip, a low differential voltage regulator (ldo) circuit, a first resistor, a second resistor, and a reset resistor. The main control chip includes an operational voltage input end, a common voltage output end, and a dividing reference voltage input end.
Shenzhen China Star Optoelectronics Technology Co., Ltd.


Driving liquid crystal panel and driving device of the same
A driving method for a liquid crystal panel and a driving device are disclosed. The driving method comprises steps of: a) determining a current inversion driving method of a liquid crystal panel; b) performing a predetermined calculation to grayscale levels of all pixels of an image to be displayed of the liquid crystal panel according to the current inversion driving method; and c) when a result value of the predetermined calculation is greater than a predetermined value, changing the current inversion driving method.
Shenzhen China Star Optoelectronics Technology Co., Ltd.


Driver structure for rgbw four-color panel
The invention discloses a driver structure for rgbw four-color panel, the rbgw four-color panel comprising a plurality of sub-pixels arrange in an array, for twelve adjacent sub-pixels connected to a same scan line n, the twelve sub-pixels comprising a red sub-pixel, a green sub-pixel, a blue sub-pixel and a white sub-pixel arranged in a specific order with three repetitions, two adjacent data lines n and n+1, being connected respectively to drive the sub-pixels of the odd-rows and even-rows in the twelve sub-pixels, and the data line n and data line n+1 having opposite signal polarity. In summary, the driver structure for rgbw four-color panel of the present invention can reduce the panel power-consumption and the cost of driver ic, which enables improving flickering..
Wuhan China Star Optoelectronics Technology Co., Ltd.


Apparatus for controlling brightness of mobile phone screen
Embodiments of the present invention provide an apparatus for controlling brightness of a mobile phone screen, which includes: a mobile phone screen light source, a silicon-controlled dimmer, a rectifier processing module, a first constant current controller processing module, a second constant current controller processing module, an electrolytic capacitor processing module, and a third constant current controller processing module, since the first constant current controller processing module can be used to provide an anode forward current necessary to sustain conduction of the silicon-controlled dimmer, the problem of screen flickering in a switch changeover state can be avoided.. .
Beijing Taitan Technology Co. Ltd.


Imaging apparatus, image processing device, and control method
An imaging apparatus includes a photometric sensor, and can continuously acquire a plurality of images by a single imaging operation. A cpu for image processing and an arithmetic operation acquires image data output by a photometric sensor and performs photometric processing.
Canon Kabushiki Kaisha


Image processing apparatus, imaging apparatus, and controlling image processing apparatus

An imaging apparatus captures a first image with a first exposure time, captures a second image with a second exposure time shorter than the first exposure time, and determines either the first image and the second image as an image to be used for the calculation of a motion vector depending on a result of the detection of flicker based on the first image and the second image. Then, the imaging apparatus calculates a motion vector based on the determined image..
Canon Kabushiki Kaisha

Flicker-free remoting support for server-rendered stereoscopic imaging

A system includes a memory, one or more processors, a guest virtual machine, a hypervisor, and a client. The hypervisor receives, from the client, a first notification of stereoscopic capability.
Red Hat Israel, Ltd.

Driving display panel and driving device

A driving method for a display panel and a driving device are disclosed. The method includes: detecting that if a current data frame satisfies a preset switching condition of switching a first polarity mode to a second polarity mode; if the current data frame satisfies a preset switching condition, obtaining a polarity input signal corresponding to a previous data frame; obtaining a data compensation value corresponding to each sub-pixel according to the polarity input signal and a position of each sub-pixel of the current data frame; under the second polarity mode, after superimposing a value of each sub-pixel of the current data frame and the data compensation value corresponding to each sub-pixel, outputting to a display panel.
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Electronic candle lamp and light-emitting diode (led) lamp

The present disclosure discloses a light-emitting diode (led) lamp and an electronic candle lamp, which comprise a baseplate, a plurality of groups of lamp bodies, a lamp shade and a controlling device. The plurality of groups of lamp bodies are disposed on the baseplate, and each group of the lamp bodies respectively comprises a plurality of leds arranged in a matrix form; the lamp shade is disposed on the baseplate and has the plurality of groups of lamp bodies nested therein; and the controlling device is electrically connected to the plurality of groups of lamp bodies to control part of the leds in each group of the lamp bodies to emit light so that the electronic candle lamp presents a candlelight effect with flickering flames.
Atake Digital Technology (shenzhen) Co., Ltd.

Liquid crystal display device

Provided is a liquid crystal display device performing reflection display, wherein light leakage in areas where structural members are provided in a liquid crystal layer, and flicker during low frequency driving, are suppressed. The liquid crystal display device includes: a first substrate 11; a reflection electrode 14 provided on the first substrate 11, for each pixel; a second substrate 20 provided so as to be opposed to the first substrate 11; a liquid crystal layer 16 provided between the first substrate 11 and the second substrate 20; and a structural member 17 provided in the liquid crystal layer 16 in such a manner that the structural member 17 protrudes from one of the first substrate 11 and the second substrate 20 toward the other substrate.
Sharp Kabushiki Kaisha

Candle warmer having touch type on/off means

The present invention relates to a candle warmer having a touch type on/off means, which allows a lamp constituting the warmer to flicker by touching a certain portion of a candle body and, more specifically to, a candle warmer having a touch type on/off means, comprising a contact sensor having a dimming function, wherein power supplied to the lamp can be turned on or turned off by bringing the contact sensor into contact with the warmer body to touch a certain portion of the warmer body, and the evaporation loss of an aromatic candle can be controlled by adjusting the output of the lamp.. .
Lepanto Co., Ltd.

Display device

A display device capable of improving visibility and minimizing a flickering phenomenon is disclosed. The display device includes: first, second, and third pixels arranged in a matrix form and each including a first sub-pixel and a second sub-pixel; a first gate line extending along an upper side of the first sub-pixel in a plan view; a second gate line extending along a lower side of the second sub-pixel in the plan view; and a plurality of first, second, and third data lines crossing the first and second gate lines and arranged alternately along a row direction.
Samsung Display Co., Ltd.

Application execution apparatus and application execution method

An object of the present invention is to provide an application execution apparatus and an application execution method which enable quick startup at cold boot, and which can prevent occurrence of flicker in a display image at the time of camera image handover. The application execution apparatus according to the present invention includes a kernel that includes a predetermined function mechanism, a framework that is started by the kernel, and that includes an abstracted function mechanism obtained by abstracting the function mechanism, a first application that operates by directly using the function mechanism, and a second application that operates by indirectly using the function mechanism through the abstracted function mechanism, and that includes a function of the first application, where a volume of the first application is smaller than a volume of the second application..
Mitsubishi Electric Corporation

Array substrate and display panel

A display panel includes a first sub-pixel, a second sub-pixel, and a third sub-pixel. The first sub-pixel has a relatively large feed-through voltage change and relatively small transmittance, and/or the first sub-pixel has relatively large line impedance and relatively small transmittance.
Au Optronics Corporation

Led circuit board layout for low profile lighting fixture

Light emitting device (led) circuit board layouts for low profile lighting fixtures are provided. In some embodiments, the lighting fixture can include a fixture housing.
Hubbell Incorporated

Electronic candle

An electronic candle includes a housing, a lens, a light emitting device and a flame image controller. The flame image controller includes a bracket, a first permanent magnet and a second permanent magnet.
Chi Ming Tam

Liquid crystal display device and driving method therefor

A liquid crystal display device of a time division driving system, capable of preventing an occurrence of a color shift without causing flickering or image sticking, is achieved. The liquid crystal display device includes: a stable arrival gradation data acquisition unit (122) configured to acquire stable arrival gradation data indicating an arrival gradation estimation value at a start timing of each field of the last frame, in a case where a virtual display process of three or more frames is performed based on input gradation data for one frame; and an input gradation data compensation unit configured to acquire writing gradation data by compensating the input gradation data based on the stable arrival gradation data.
Sharp Kabushiki Kaisha

Light-emitting diode display device and operating the same

Provided are a light-emitting diode (led) display device and a method of operating the led display device determining whether a line flicker will occur based on a level of an input image signal, obtaining an led line scan order corresponding to the level of the input image signal and brightness according to the input image signal based on the determining, and driving at least one led line based on the led line scan order. An led line scan order may be adjusted according to a level of an input/output image signal in an led display device so as to reduce occurrence of a line flicker phenomenon in all levels of the input/output image signal..
Samsung Electronics Co., Ltd.

Liquid crystal aligning agents for forming photo-aligning liquid crystal alignment layers, liquid crystal alignment layers and liquid crystal display devices using the same

A photo-aligning liquid crystal aligning agent for forming a liquid crystal alignment layer capable of materializing a liquid crystal display device, which has a high transmittance while maintaining a liquid crystal aligning property, a voltage holding ratio and the like, and in which flickering is inhibited from being caused after operating for a long time. The photo-aligning liquid crystal aligning agent contains [a] polyamic acid or a derivative thereof which is synthesized by reacting tetracarboxylic acid dianhydride and diamine, and [b] polyamic acid or a derivative thereof obtained by reacting tetracarboxylic acid dianhydride having no photoreactive structure and diamine having no photoreactive structure..
Jnc Petrochemical Corporation

Patient positioning training apparatus

Some embodiments are directed to a method of assisting a patient in controlling their position, including obtaining a reference position data) indicative of a reference position of a patient, and actual position data is monitored and compared with the reference position data to determine a deviation, and the intensity and/or brightness and/or hue angle and/or flicker rate of emitted light which is detectable by the patient as ambient light is changed if there is a position deviation.. .
Vision Rt Limited

Low flicker ac driven led lighting system, drive method and apparatus

An led lighting device having a first led circuit having at least one led and at least a first switch connected in series with the first led circuit and a second led circuit having at least one led and at least a second switch connected in series with the second led circuit. The device includes a third switch configured to connect the first led circuit in series with the second led circuit and a controller for dynamically controlling the first switch, the second switch and the third switch to connect the first led circuit and the second led circuit in series or parallel configurations in response to an input to the controller..
Lynk Labs, Inc.

Wdr imaging with led flicker mitigation

A method of wdr imaging. Exposure times (ets) are set for first and second frames for an image sensor to avoid second frame saturating by setting a second et>1/a pwm frequency applied to an led illuminating a scene to generate second longer et pixel data (pd).
Texas Instruments Incorporated

Acousto-optic audio signal cable

The invention discloses an acousto-optic audio signal cable which includes an audio wire cluster, at least one led marquee light wire or at least one illuminating line parallel or spiral twining around outside or external wall of the audio wire cluster and an acousto-optic controller. The audio wire cluster and the led marquee light wires form a cluster which is coated by a transparent insulating layer.

System and image processing and display device

Exemplary embodiments of the present disclosure relate to a system and method for image processing, and a display device. The system comprises: a greyscale value selection module for selecting a plurality of color greyscale values for each sub-pixel, the sub-pixel being used for displaying an image; an optimal common voltage determination module for determining an optimal common voltage of each sub-pixel according to the selected color greyscale values for each sub-pixel; a uniformity determination module comprising a flicker uniformity determination module and a common voltage uniformity determination module, the flicker uniformity determination module being used for determining the flicker uniformity of each sub-pixel, the common voltage uniformity determination module being used for determining the common voltage uniformity of each sub-pixel according to the determined flicker uniformity of each sub-pixel; and an image compensation module for compensating each sub-pixel according to at least one of the optimal common voltage of each sub-pixel and the common voltage uniformity of each sub-pixel, thereby improving the residual image and flicker uniformity at the time of image display..
Chengdu Boe Optoelectronics Technology Co., Ltd.

Image pickup system

At least one image pickup system that acquires distance information and prevents missing, or loss of, information while taking countermeasures against flicker, includes a first image pickup apparatus, a second image pickup apparatus, and a signal processing unit configured to process signals acquired from the first image pickup apparatus and the second image pickup apparatus. An exposure period of the first image pickup apparatus and an exposure period of the second image pickup apparatus are repeated a plurality of times in one frame.
Canon Kabushiki Kaisha

Light emitting diode driving circuit for reducing flicker effect

An led driving circuit for driving an led unit includes a power source, a detection circuit, a charging-discharging circuit, and a control circuit. The power source is coupled to the input node of the led unit.
Edison Opto (dongguan) Co., Ltd.

Electric fireplace

A simulated fireplace and heater is provided having a housing with a cylindrically concave front display area. The housing includes a flange that acts as a decorative bezel.
Way Interglobal Network, Llc

Cmos image sensor with dual floating diffusions per pixel for flicker-free detection of light emitting diodes

Apparatuses and methods for image sensors with pixels that reduce or eliminate flicker induced by high intensity illumination are disclosed. An example image sensor may include a photodiode, a transfer gate, an anti-blooming gate, and first and second source follower transistors.
Omnivision Technologies, Inc.

Display system and electronic device

A novel display system is provided. The display system includes a display portion and a control portion.
Semiconductor Energy Laboratory Co., Ltd.

Electronic circuit for driving led strings so as to reduce the light flicker

Led strings cascaded to one another are driven by an electronic circuit that includes regulation modules and a brightness-compensation module. The regulation modules carry out in sequence a current-regulation phase, in which they regulate the current that flows in the corresponding led strings.
Stmicroelectronics S.r.l.

Synchronized lighting and video active lighting tracks (valt) with synchronized camera to enable multi-scheme motion picture capture

A method and system for synchronizing led lighting to the shutters of fast digital cameras. The system enables capture of multiple lighting schemes to be filmed in a single video take on sequential frames.
Cineo Lighting Inc.

Display driving method, display panel and display device

A display driving method, a display panel and a display device. In the display driving method, the voltage (vgl) of a gate turning-off signal at least changes once during the period of applying the gate turning-off signal to each gate line (gate 1, gate 2, .
Boe Technology Group Co., Ltd.

Sony Corporation

. .

Imaging device, imaging method, electronic apparatus, and onboard electronic apparatus

With the present technology, multiple images are captured consecutively at uneven intervals in a single-frame period of a video before being blended. This removes the flicker efficiently.

Reducing flicker in a coded light

A drive signal is generated, describing a waveform having discrete levels used to represent packets of data interspersed with idle periods, the data being encoded according to an at least three-level code, which is dc-free in that, at least when the data is substantially random, the symbol values average to the value of the zero symbol. The drive signal is used to drive a light source, and thereby transmit the encoded signal embedded in the emitted visible light.
Philips Lighting Holding B.v.

Display flicker reduction systems and methods

Aspects of the subject technology relate to electronic devices with displays. A display may include an array of display pixels each having a drive transistor and an organic light-emitting diode.
Apple Inc.

Optical assemblies that are both brightly backlit and transparent for use in costumed characters

An apparatus worn as headgear providing visual effects and vision to the wearer. The apparatus includes a shell or helmet.
Disney Enterprises, Inc.

Auto white balance control algorithm based upon flicker frequency detection

Techniques for auto white balancing of captured images based on detection of flicker in ambient light is described. When flicker is detected in ambient light during an image capture event, and the flicker is unchanging during the image capture event, a white point of image data may be estimated according to a first technique.
Apple Inc.

Imaging pixels with a fully depleted charge transfer path

An imaging pixel may have a fully depleted charge transfer path between a pinned photodiode and a floating diffusion region. A pinned transfer diode may be coupled between the pinned photodiode and the floating diffusion region.
Semiconductor Components Industries, Llc

Light emitting diode display device and operating the same

A method of operating a light emitting diode (led) display device is provided. The method includes determining idle time periods respectively corresponding to led driving clock signals, based on a number of led driving clock signals corresponding to one frame, controlling generation of the led driving clock signals, based on the determined idle time periods, and driving an led module in a unit of an led line, based on the generated led driving clock signals.
Samsung Electronics Co., Ltd.

Method for eliminating flicker in emergency lighting driver devices during pulse charging

An emergency lighting driver device is configured to assume an operation mode in which: the battery is charged by applying the pulse signal to the transistor from the control unit, while the led load is driven, wherein the emergency lighting driver device is configured to delay the pulse signal such that the rising edge(s) and/or falling edge(s) of the pulse signal have a transition time of at least 0.5 seconds, preferably at least 1 second, more preferred more than 1.5 seconds and preferably less than 3 seconds; and/or wherein the pulse signal is fed through a low pass filter unit of the emergency lighting driver device delaying the transition time of the rising edge(s) and/or falling edge(s) of the pulse signal before feeding it to the transistor.. .
Tridonic Gmbh & Co Kg

Gate driving circuit

A gate driving circuit is provided. The gate driving circuit includes multistage driving modules, where an nth stage driving module includes a setting circuit, a first driving circuit, an isolating switch circuit, a second driving circuit and an anti-noise circuit.
National Chiao Tung University

Method and driving display panels during display-off periods

A method for driving a thin film transistor (tft) liquid crystal display (lcd) panel during a display-off period is provided for avoiding image flickering when the panel resumes image display. Flickering when resuming image display is due to charge accumulated on liquid crystals (lcs) during the display-off period.
Solomon Systech Limited

Touch induced flicker mitigation for variable refresh rate display

Touch induced flicker for variable refresh rate (vrr) displays can be reduced by adjusting one or more voltages. Synchronization of touch sensing operations after an immediate exit can introduce flicker issues into the vrr display.
Apple Inc.

Emergency guidance apparatus with lighting

Disclosed is an emergency guidance apparatus which displays direction, situation informing letter and sign in a display unit, outputs a sound in a speaker, and turns on flickering light towards the right direction to evacuate so that the apparatus can guide evacuation and minimize the human casualties depending on the disaster type and situation. The emergency guidance apparatus with lighting according to an embodiment of the disclosure, which transmits to a central control unit the disaster signals detected by the disaster detection sensors that are installed in multiple places within building, and receives the processing signals transmitted by the central control part so as to guide the evacuation direction..

Imaging apparatus, imaging method, and non-transitory storage medium storing imaging program

An imaging apparatus includes an imaging unit, an image processor, and a controller. The imaging unit images a subject field to generate an image in a set imaging drive mode of a first imaging drive mode for live-view display and a second imaging drive mode for still image shooting.
Olympus Corporation

Circuit for powering off a liquid crystal panel, peripheral drive device and liquid crystal panel

A circuit for powering off a liquid crystal panel, a peripheral drive device, and a liquid crystal panel. In the circuit for powering off a liquid crystal panel, a switch module is coupled to an enable signal transmission line, a common electrode and respective data lines of the liquid crystal panel, and is configured to be switched on upon receiving an enable signal, to connect the respective data lines to the common electrode.
Beijing Boe Display Technology Co., Ltd.

Concurrently refreshing multiple areas of a display device using multiple different refresh rates

This application relates to methods and apparatus for refreshing a display device at various frequencies. Specifically, multiple areas of the display device can be refreshed concurrently at different frequencies.
Apple Inc.

Circuits and methods for reducing flicker in an led light source

Method and circuits for balancing a first waveform used to drive an led are disclosed herein. The first waveform has a first cycle with a first amplitude and a second cycle with a second amplitude.
Texas Instruments Incorporated

System and processing video data to detect and eliminate flickering light sources through dynamic exposure control

An image capture system is provided for a vehicle equipped with a display for displaying streamed video images of a scene proximate the vehicle. The image capture system includes a camera for capturing video images of the scene proximate the vehicle at a selected exposure time and streaming the video images, and an image processing unit for receiving the streamed video images, processing the streamed video images and supplying the streamed video images to the display.
Gentex Corporation

Display device and driving same

Provided is a display device capable of satisfactorily reducing power consumption while suppressing display degradation due to flicker. When an input unit (70) of a host accepts a predetermined input operation performed by a user (4) during pause driving of a liquid crystal display device (2), a check and adjustment process is started.
Sharp Kabushiki Kaisha

Pixel circuit and driving the same

The present disclosure relates to a pixel circuit and a method for driving the same. The pixel circuit includes: first and second transistors, control terminals of which receive a first scan signal; third and fourth transistors, control terminals of which receive a second scan signal; a fifth transistor, a control terminal of which is electrically coupled to a capacitor; sixth, seventh and eighth transistors, control terminals of which receive a control signal; and a light emitting diode.
Everdisplay Optronics (shanghai) Limited

Method for processing event signal and event-based sensor performing the same

An event signal processing method and an event-based sensor performing the event signal processing method are provided. The event signal processing method includes receiving an activation signal to indicate sensing of an event from a sensor array, increasing the cumulative event number of a sensing area corresponding to the activation signal among sensing areas of the sensor array, reducing the cumulative event number of each of the sensing areas based on a parameter; and determining, as a flickering area, a sensing area among the sensing areas, of which the cumulative event number exceeds a threshold..
Samsung Electronics Co., Ltd.

Methods and systems for pulsed illumination

Methods and systems for performing an ophthalmic surgical procedure include pulsed illumination of target tissue. The systems may include an illumination instrument arranged to illuminate tissue at a surgical site during the ophthalmic surgical procedure.
Novartis Ag

Ambient flame style flicker lighting system and methods

The described embodiments relate to systems, methods, and apparatuses for controlling a lighting unit to provide multiple different static and dynamic illumination patterns. The illumination patterns can be provided in response to changes in environmental conditions detected by sensors of the lighting unit.
Heathco Llc

Methods and apparatuses for configuring a ble advertising beacon

A method, apparatus, and computer program product are provided in order to provide improvements in the configuring of bluetooth low energy (ble) advertising beacons. Embodiments of the present invention are directed to conveniently and reliably configuring or updating the configuration of a ble beacon, while limiting the amount of technical information and/or tools required.
Nokia Technologies Oy

Organic light emitting display device and driving the same

Provided is an organic light emitting display (oled) device that can include a timing controller configured to generate control signals to be applied to a plurality of pixels, each pixel including a pixel driving circuit. An adjusted initialization voltage is input to a circuit driving circuit of the oled device during an initialization period.
Lg Display Co., Ltd.

Digital power supply with wireless monitoring and control

Provided is an apparatus and method for a digital power supply that can provide independent power control for two or more electrical loads. Some disclosed embodiments provide continuous, variable power and other disclosed embodiments provide discrete power levels.
Weber-stephen Products Llc

Display device and manufacturing the same

A display device and a method of manufacturing the same are disclosed. The display device comprises a thin film transistor on a substrate, a protective film on the thin film transistor, and an alignment film on the protective film.
Lg Display Co., Ltd.

Liquid crystal display device

A liquid crystal display (“lcd”) device is capable of consuming relatively less power and significantly reducing flickering that may occur when the lcd device is driven by low frequency, the lcd device including: a liquid crystal layer disposed between the first substrate and the second substrate; a gate line; a data line intersecting the gate line; a timing controller outputting a gate control signal by a frequency of about 15 hertz (hz) to about 30 hz; a first electrode on the first substrate; and a second electrode on the first substrate, the second electrode spaced apart from the first electrode. The first electrode includes a plurality of first branch electrodes having an angle of about 9 degrees to about 30 degrees with respect to a normal line which is orthogonal to the gate line..
Samsung Display Co., Ltd.

Device of monitoring reactive power compensation system, and method thereof

The present disclosure relates to a device of monitoring a reactive power compensation system to compensate reactive power, the device including a measurement unit configured to acquire voltage data, current data, and a phase angle from each constituent device, a power performance index calculation unit configured to calculate power performance index data including at least one of power factor data, flicker data, and harmonics data based on the acquired voltage data, current data, and phase angle, and a controller configured to analyze and evaluate the calculated power performance index data based on a preset situation.. .
Lsis Co., Ltd.

Digital power supply

Provided is an apparatus and method for a digital power supply that can provide independent power control, and control variable power, for two or more electrical loads. Disclosed embodiments may reduce the magnitude of harmonic currents and/or flicker introduced into a power system.
Weber-stephen Products Llc

Anomalous pixel detection

Systems and methods are disclosed herein to detect pixels exhibiting anomalous behavior in captured image frames. In some examples, temporal anomalous behavior may be identified, such as flickering pixels exhibiting large magnitude changes in pixel values that vary rapidly from frame-to-frame.
Flir Systems, Inc.

Methods and reducing spatial flicker artifacts

Various embodiments of the present technology may comprise a method and apparatus for reducing spatial flicker artifacts in high dynamic range images produced from multiple image captures with differing integration times. The method and apparatus may comprise, in the image captures, measuring pixel intensity selecting pixels with a predetermined intensity thresholds, calculating a ratio based on a channel selection, normalizing the calculated ratio to an ideal ratio, and applying the normalized ratio to corresponding image pixels in a second image capture to produce a flicker-free image..
Semiconductor Components Industries, Llc

System and providing optically coded information

An active optical machine-readable tag (i.e. Optical tag) is provided that is addressable and readable within a line-of-sight of a reader device, such as a mobile device equipped with a camera, at substantially large distances.

Imitation flame lamp head and flickering imitation flame lamp

An imitation flame lamp head includes a mounting base, a drive device, an elastic shaft, a flame piece and an illuminant. The drive device is fixed in the mounting base, an upper end of the elastic shaft is fixed to a lower end of the flame piece, the flame piece is protruded outwards the mounting base, the illuminant is configured inside the mounting base to emit lights to a side of the flame piece, and the elastic shaft is driven by the drive device to actuate the flame piece to swing.

Systems and methods for remotely controlling an imitation candle device

Imitation candle devices and systems with enhanced features are described that facilitate remote operation and usage of electronic candles. The disclosed features include application programs running on a processor of a mobile device and a detachable wireless transceiver included within an imitation candle to facilitate the electronic candle to be turned on or off remotely.

Focus detection apparatus and method, and image capturing apparatus

A focus detection apparatus comprises: a determination unit that determines whether a flicker light source is included in focus detection areas; a plurality of sensors for focus detection that correspond to the focus detection areas, and accumulate electric charges corresponding to received light; and a controller that controls accumulation in the sensors. The controller monitors a signal that is based on electric charges accumulated in the sensors, and performs first control for stopping accumulation in a sensor in which the signal has exceeded a predetermined threshold value, and second control for stopping accumulation in a sensor which continues accumulation of electric charges when a maximum accumulation period has reached.
Canon Kabushiki Kaisha

Imaging apparatus, flicker detection method, and flicker detection program

An imaging apparatus includes: an imaging element; an imaging element driving unit that directs the imaging element to alternately perform imaging operations at a first frame rate and a second frame rate being different from the first frame rate; and a flicker detection unit that detects whether a first flicker of a light source with a first frequency is present and whether a second flicker of a light source with a second frequency is present, based on a captured image signal obtained by an imaging operation at the first frame rate, a captured image signal obtained by an imaging operation at the second frame rate following the imaging operation at the first frame rate and a captured image signal obtained by an another imaging operation at the first frame rate or the second frame rate, wherein the first frame rate and the second frame rate are as defined herein.. .
Fujifilm Corporation

Imaging apparatus, flicker detection method, and flicker detection program

An imaging apparatus includes: an imaging element; an imaging element driving unit that directs the imaging element to alternately perform imaging operations at a first frame rate and a second frame rate being different from the first frame rate; and a flicker detection unit that detects whether a first flicker of a light source with a first frequency is present and whether a second flicker of a light source with a second frequency is present, based on a first captured image signal obtained by an imaging operation at the first frame rate and a second captured image signal obtained by an imaging operation at the second frame rate as defined herein, and a sum of a duration of a first frame period based on the first frame rate and a duration of a second frame period based on the second frame rate is a value as defined herein. .
Fujifilm Corporation

Reactive power compensation system and method thereof

The present disclosure relates a reactive power compensation system including a detection unit for acquiring loading state information of a plurality of loads, a reactive power compensation unit for compensating reactive power, and a controller for controlling the reactive power compensation unit to perform flicker compensation or power factor compensation based on a control signal according to the loading state information.. .
Lsis Co., Ltd.

Spatial temporal phase shifted polarity aware dither

This application relates to performing certain dithering processes to eliminate display artifacts such as flicker, which can be caused by charge accumulation at the display. The dither process can be performed by a display controller that uses a group lookup method for identifying groups of dithering patterns that can be combined to expand a number of color values available to the display.
Apple Inc.

Analog readout preprocessing circuit for cmos image sensor and control method thereof

The present disclosure provides an analog readout preprocessing circuit for a cmos image sensor and a control method thereof. The analog readout preprocessing circuit comprises an extended count-type integration cycle-successive approximation hybrid analog-to-digital conversion capacitor network 1 configured to achieve readout and analog-to-digital conversion of signals output from the cmos image sensor; an operational amplifier configured to utilize “virtual short” of two input terminals of the operational amplifier and the charge conservation principle, to achieve a function of extended count-type integration cycle-successive approximation hybrid analog-to-digital conversion, where the extended count-type integration can effectively reduce a thermal noise and a flicker noise within the image sensor; a comparator configured to compare voltages at two terminals to achieve a function of quantization of signals; and a control signal generator configured to provide control signals..
Institute Of Semiconductors, Chinese Academy Of Sciences

System and adaptive flickering reduction from video sequence

A method of detecting and correcting flicker. A video stream of a scene at various instances of time is captured by an image capture device.
Gm Global Technology Operations Llc

Display device

To provide a display device with excellent display quality, in a display device including a signal line, a scan line, a transistor, a pixel electrode, and a common electrode in a pixel, the common electrode is included in which an extending direction of a region overlapping with the signal line differs from an extending direction of a region overlapping with the pixel electrode in a planar shape and the extending directions intersect with each other between the signal line and the pixel electrode. Thus, a change in transmittance of the pixel can be suppressed; accordingly, flickers can be reduced..
Semiconductor Energy Laboratory Co., Ltd.

Image sensors with led flicker mitigaton global shutter pixles

An image sensor may include one or more pixels having a charge steering structure that may selectively route charge from a photodiode to increase the dynamic range of the pixel. The charge steering structure may be a coupled gate structure that routes overflow charge to a voltage supply and to one or more integrating storage structures during an exposure period.
Semiconductor Components Industries, Llc

Apparatus for controlling forced light up of brake lights

The present invention relates to an apparatus for controlling the forced light up of brake lights and, more specifically, to an apparatus for controlling the forced light up of brake lights, the apparatus: checking whether a brake light system has problems so as to prevent vehicle rear-ending accidents caused by the breakdown of vehicle brake lights, informing only a driver, according to a state of a vehicle, about each problem, or sensing stepping on the brake and forcedly lighting up the brake lights whenever the driver steps on the brake when the lamp of the brake lights and wiring connected to the brake lights have no abnormalitites, but the breakdown of the brake light system, that is, a brake lights power fuse disconnection, a breakdown of a brake lights relay, a wiring disconnection or defective wiring contact and the like occurs, informs the driver of the stop lamp system breakdown; informing the rear vehicle of danger by flickering a turn signal light since the brake lights cannot be forcedly lit up when both the brake light system and the brake lights have broken down; informing the driver of the breakdown of the brake light system and the brake lights by operating an internal alarm means whenever the driver steps on and releases the brake, thereby enabling the driver to drive safely.. .
Sam Won Tech Co., Ltd.

Systems and methods for detecting light-emitting diode without flickering

An image sensor for detecting light-emitting diode (led) without flickering includes a pixel array with pixels. Each pixel including subpixels including a first and a second subpixel, dual floating diffusion (dfd) transistor, and a capacitor coupled to the dfd transistor.
Omnivision Technologies, Inc.

Organic light emitting display device

The present disclosure relates to an organic light emitting display device which is implemented to reduce or suppress the residual image and the flicker. According to an embodiment, a circuit includes an organic light emitting diode disposed between a first node and a first power source, a driving transistor disposed between the first node and a second power source and driving the organic light emitting device, a first transistor transmitting a data signal to the driving transistor, and a first control transistor disposed between the first node and a second node.
Lg Display Co., Ltd.

Display device

A display device includes a first pixel group having first, second, third, and fourth pixels arranged along a column direction, and a second pixel group having fifth, sixth, seventh, and eighth pixels arranged along the column direction. A gate line is connected to the first, second, third, fourth, fifth, sixth, seventh, and eighth pixels.
Samsung Display Co., Ltd.

Biased lubricant applicator brush in imaging device

In an imaging device having a photoconductive drum and a lubricant applicator brush, methods and apparatus teach application of the lubricant to the drum at a transfer nip and removing undeveloped toner particles. A first voltage is applied to the drum while the brush receives a voltage that switches more positive and more negative than the first voltage.
Lexmark International, Inc.

Systems and methods for fuser power control

A method of controlling the temperature of a fuser is disclosed. The fuser is driven with a repeated sequence of half-cycles of an ac line voltage.
Lexmark International, Inc.

Imaging apparatus, flicker detection method, and flicker detection program

Provided are an imaging apparatus, a flicker detection method, and a flicker detection program that can accurately detect a flicker even in a case in which an image of a bright object is captured. A digital camera directs a mos imaging element 5 to perform a plurality of imaging operations at an arbitrary frame rate and compares captured image signals which are read from the imaging element 5 for frame periods f1 and f2 based on the frame rate to detect whether a flicker has occurred.
Fujifilm Corporation

Array substrate, liquid crystal display panel and liquid crystal display device

The present application discloses an array substrate, a liquid crystal display panel and a liquid crystal display device; a metal layer is designed to be added between the pixel electrode and the common electrode. The metal layer can form a first storage capacitor with the pixel electrode and formed a second storage capacitor with the common electrode, such as the dual storage capacitors to enlarge the storage capacitor to improve the flicker caused by tft leakage, ensure the display effect, and the two storage capacitor are overlapped set, the aperture ratio of the pixel is not reduced..
Wuhan China Star Optoelectronics Technology Co., Ltd.

Imager with active exposure correction

An imager module for a vehicle is disclosed. The imager module comprises an imager configured to capture image data over a plurality of image frames based on incoming light in a field of view and an optic device configured to control a transmission of the incoming light.
Gentex Corporation

Method and reducing flickering of emitted light

A light emitting apparatus including: a light emitting array having at least one light emitting string of serial connected light emitting elements, wherein a bypass switch is connected in parallel to each light emitting element of said light emitting string; and a driving control unit controlling a shift timing of the bypass switches to reduce a variation of a voltage drop across the light emitting string.. .
Rohm Co., Ltd.

Method and reduced flicker visible light communications (vlc)

A visible light communication (vlc) device for lighting and data transmission is disclosed. The vlc device may comprise circuitry configured to receive a first stream of bits and determine a first switchpoint for transmitting the first stream of bits and first filler data.
Interdigital Patent Holdings, Inc.

Field-sequential image display device and image display method

A subframe data generation unit 12 generates brightness data ew, er, eg, eb of four colors by obtaining distributed brightness with regard to each pixel based on brightness data dr, dg, db of three colors, the distributed brightness being brightness of a white subframe, and obtaining brightness of red, green, and blue subframes with regard to each pixel based on the brightness data dr, dg, db of three colors and the distributed brightness. The subframe data generation unit 12 obtains the distributed brightness by setting an initial value of the distributed brightness to a maximum value that the distributed brightness can take, and then performing adjustment processing for reducing a difference between the distributed brightness of adjacent pixels.
Sharp Kabushiki Kaisha

Stereoscopic display

A direct interaction stereoscopic display system that produces an augmented or virtual reality environment. The system comprises one or more displays, a beam combiner, and a mirrored surface to virtually project high-resolution flicker-free stereoscopic 3d imagery into a graphics volume in an open region.
Spatial Intelligence Llc

Dual-photodiode image pixel

An image sensor may have an array of pixels that include nested sub-pixels that each have at least one respective photodiode. An inner sub-pixel of a pixel with nested sub-pixels may have a relatively lower effective light collecting area compared to an outer sub-pixel of the pixel within which the inner sub-pixel is nested.
Semiconductor Components Industries, Llc

Liquid crystal display device and driving method thereof

The invention provides a liquid crystal display device and a driving method thereof. The liquid crystal display device includes a liquid crystal display panel and a driver.
Chunghwa Picture Tubes, Ltd.

Liquid crystal display device

A liquid crystal display device includes a liquid crystal panel; at least one source driving unit including at least one first fan-out line and at least one second fan-out line which are disposed alternately; at least one demultiplexer electrically coupled to the first fan-out line and the second fan-out line, the demultiplexer including a plurality of buses, a plurality of first output lines, and a plurality of second output lines; and a plurality of pixel units, each of the pixel units including four sub-pixels. The liquid crystal display device is capable of solving the flicker problem and the crosstalk problem in the prior art..
Wuhan China Star Optoelectronics Technology Co., Ltd.

High efficiency light compatibility device

An anti-flicker and anti-glow switchable load apparatus to be installed in the light socket of a commonly powered electronic switching device, such as a motion activated light switch. An energy efficient light bulb or lamp, such as a cathode fluorescent lamp or light emitting diode is then screwed into the apparatus.

Display apparatus

A display apparatus suppresses flicker, and includes a display part in which a first plurality of main pixels px1 to px4 including subpixels r1 to r4, g1 to g4 and b1 to b4 of a first to an n-th color are arrayed in a line, the “n” being an integer larger than 1; and a demultiplexer including distribution units 41-46 distributing a drive signal ckh, driving any one of a plurality of subpixels included in a subpixel group to the one of the plurality of subpixels. The subpixel group includes multiple subpixels spx1 and spx2 included in a second plurality of main pixels px1 and px3 among the first plurality of main pixels, one or more main pixels being interposed between the second plurality of main pixels, the subpixels spx1 and spx 2 being subpixels having the same color to which drive signals of the same polarity are input..

Electric fireplace simulating realistic flame and smoke effects

Method and devices for simulating visual and audio effects of wood burning fireplace are provided. An electric fireplace includes artificial logs on a hearth area configured to simulate burning wood logs.

Multi-flame electric candles

Various embodiments of electric candles are described having multiple flame elements, each of which generate a flickering flame effect, and collectively simulate a candle having multiple flames. The candles include a housing that encloses various lighting devices and circuitry that can control one or more aspects of the lighting devices.
Luminara Worldwide, Llc

Expurgated pulse position modulation for communication

An expurgated pulse position modulation (eppm) technique can be used to encode information for wireless transmission. Such an eppm technique can be compatible with a simple receiver architecture, such as including a shift register and pulse position modulation (ppm) decoder.

Display device and driving method

An object is to reduce power consumption of a display device and to suppress deterioration of display quality. As a transistor provided for each pixel, a transistor including an oxide semiconductor layer is used.

Display driving method and apparatus and display device comprising the display driving apparatus

A display driving method is provided. The method comprises: determining whether scanning of at least one area of display areas is completed (s1); adjusting light-emitting luminance of display light source corresponding to the at least one area after the scanning of the at least one area is completed, such that display luminance of the at least one area maintains within a specified range to eliminate picture flicker (s2).

Temporally modulated lighting system and method

Electric light sources typically exhibit temporal variations in luminous flux output, commonly referred to as “flicker.” flicker, or temporal modulation, is known to influence the growth, health and behavior patterns of humans, and is also linked to growth, health and behavior patterns throughout the growth cycle of plants and animals. Control of peak radiant flux emitted by a light source to temporally modulate a light source will allow for the control of plants and animals for sustainable farming including but not limited to horticultural, agricultural, or aquacultural endeavors..

Image processing detecting flicker, controlling the same, and non-transitory storage medium

An image processing technique that enables accurate detection of a flicker component even when applied to an image pickup device capable of changing a driving method on a region basis within a frame. A flicker detection section detects a flicker component of an image pixel signal read out from the image pickup device having a pixel region for detecting a phase difference.
Canon Kabushiki Kaisha

Electronic flameless candle

An electronic flameless candle including a body having a top surface, a bottom surface, a sidewall between the top surface and the bottom surface, and a cavity defined by the top surface, the bottom surface and the sidewall, the body configured in shape and size to simulate a true flame candle. The candle may also include a light source operably connected to the body, the light source electrically operated to illuminate in a way that simulates a natural flicker of a real candle flame.

On-board electronic mirror

The purpose of the present invention is to prevent screen flicker when the screen of an on-board electronic mirror changes at a high speed, and to provide optimal information to a user. An on-board electronic minor (10), which is mounted on a vehicle, is provided with: a camera (100) for capturing images of the periphery of the vehicle; a video signal processing circuit (101) for processing the video captured by the camera (100); a monitor (105) for displaying the images processed by the video signal processing circuit (101); sensors (107-111) that are recounted on the vehicle and that detect an event during travel of the vehicle; and a video signal change circuit (103) and a video signal control circuit (112) that, on the basis of the detection results of the sensors (107-111), perform control for changing the video captured by the camera (100) to different video..
Panasonic Intellectual Property Management Co., Ltd.

Arbitrary pulse alignment to reduce led flicker

An arbitrary alignment is provided for a series of pulses controlling a switch that in turn controls a current in an led. Each pulse is generated according to a target time responsive to a reference time in a corresponding cycle of a synchronization clock.
Dialog Semiconductor Inc.

Temporal control for spatially adaptive tone mapping of high dynamic range video

Techniques are provided for temporal control of a spatially adaptive tone mapping (satm). The techniques can be applied to a sequence of video images (e.g., high dynamic range (hdr) video).
Intel Corporation

Fire effect sensor activated trashcan

The present invention provides a trashcan or wastebasket that has lights and sounds simulating a fire that are activated when trash is thrown inside or on the verge of being thrown inside. One particular activation method consists of sensors housed at the top of the trashcan that detect when trash is thrown in.

Sony Corporation

. .

Method and processing image obtained by camera

A method of processing an image obtained by a camera includes: obtaining the image using an image sensor; identifying an image signal in a direction perpendicular to a line scan direction of the image sensor, with respect to at least one region of the image; detecting a signal indicating a flicker, using the image signal; and generating an image in which a flicker is corrected, based on the signal indicating a flicker and the image.. .
Samsung Electronics Co., Ltd.

Smoothing phosphors for ac led lighting

Disclosed are smoothing phosphors for ac led lighting that are capable of prolonging the light emission time of an ac led (or array of ac leds) during a ½ cycle response to a phase change of the alternating current to substantially reduce flicker. The smoothing phosphor of the present teachings comprises a matrix represented by the formula: m(l-k-r-v)x(m-p)al2(n-0.5x-0.5y)o3(n-0.5x-0.5y): mn(x+p)o(x+p), siyo2y, euk, rr, liv wherein m is at least one of la2o3, ce2o3, gd2o3, lu2o3, ba2of2, sr2of2, ca2of2, ba2ocl2, sr2ocl2, ca2ocl2, bao, sro, cao, or zno; provided that when m comprises bao, sro, cao, or zno, m does not comprise la2o3, ce2o3, gd2o3, lu2o3, ba2of2, sr2of2, ca2of2, ba2ocl2, sr2ocl2, or ca2ocl2; x is at least one of mgo or zno; r is at least one of sm, pr, tb, dy, er, or ho; m=0 to 2; n=4 to 11; x=0.005 to 1; y=0.005 to 1; p=0 to 1; k=0 to 0.2; r=0 to 0.2; and v=0 to 0.2..
Performance Indicator, Llc

Light emitting device

A light emitting device is provided which can prevent a change in gate voltage due to leakage or other causes and at the same time can prevent the aperture ratio from lowering. A capacitor storage is formed from a connection wiring line, an insulating film, and a capacitance wiring line.
Semiconductor Energy Laboratory Co., Ltd.

Display control and touch detection device, semiconductor integrated circuit

A display control and touch detection device is capable of controlling display and non-display terms in start timing depending on a result of touch detection, and includes a nonvolatile memory and a control logic which selectively uses data stored in the memory according to a display mode. The control logic changes the display and non-display terms in start timing in display frame periods, whereby the phenomenon of appearance of an undesired brightness difference at a fixed location in a display frame with no display, and the phenomenon of occurrence of flicker owing to the undesired brightness difference can be suppressed.
Synaptics Japan Gk

Flame simulating assembly

A flame simulating assembly including a light source, a screen having a translucent region which subjects light from the light source transmitted therethrough to diffusion and a transparent region, and a flicker element for intermittently reflecting the light from the light source toward the screen, to provide images of flames in a predetermined portion thereof. The screen includes a fringe region positioned between the translucent region and the transparent region.
Dimplex North America Limited

Image sensor having led flicker mitigation function and image processing system including the image sensor

Disclosed are an image sensor having a light-emitting diode (led) flicker mitigation function and an image processing system including the image sensor. The image processing system includes an image sensor including a plurality of pixels, the plurality of pixels configured to respectively generate pixel signals corresponding to photocharges, and configured to perform analog-to-digital conversion (adc) on the pixel signals to generate digital pixel signals; and an image signal processor configured to process the digital pixel signals to generate image data.
Samsung Electronics Co., Ltd.

Imaging systems with flicker mitigation and high dynamic range

An image pixel may include a shutter element that is operable in an open state during which a corresponding photodiode accumulates charge and a closed state during which charge is drained from the photodiode. During a first portion of an image frame, the image pixel may operate in a flicker mitigation mode in which a non-continuous exposure period is used.
Semiconductor Components Industries, Llc

Imaging pixels with a fully depleted charge transfer path

An imaging pixel may have a fully depleted charge transfer path between a pinned photodiode and a floating diffusion region. A pinned transfer diode may be coupled between the pinned photodiode and the floating diffusion region.
Semiconductor Components Industries, Llc

Liquid crystal display device and driving same

An object of the present invention is to realize a liquid crystal display device of a field sequential system which is capable of preventing occurrence of color shift and flicker. One frame period is divided into a plurality of fields, the number of which is greater than the number of lighting patterns.
Sharp Kabushiki Kaisha

Display device and method

The present invention provides a display device, which comprises a display panel, a partitioning module, a data transforming module, a scanning driver, and a data driver. The display panel has m pixel units.
Shenzhen China Star Optoelectronics Technology Co. Ltd.

Structure for lcd panel

The invention provides a structure for lcd panel, by disposing a first and a second common voltage buses (com1, com2) on the two sides of the active area (aa) of the lcd panel, and the first common voltage bus (com1) carrying a first common voltage vcoml different from a second common voltage vcom2 carried on the second common voltage bus (com2), in combination with different sub-pixel routings to achieve the inversion or dot inversion driving mode, solve the image sticking, crosstalk and flicker problems and improve display quality of the lcd panel.. .
Wuhan China Star Optoelectronics Technology Co., Ltd.

Led drive circuit with improved flicker performance, and led lighting device comprising same

An alternating current sequential drive type led lighting device having improved flicker performance and being capable of reducing the light output deviation of the led lighting device generated during operation intervals by removing nonluminous intervals of the led lighting device by means of a loop-back compensation unit.. .
Seoul Semiconductor Co., Ltd.

Or-function illumination in phased bitplanes in a high dynamic range projector

Or-function illumination in phased bitplanes in a high dynamic range projector is provided, which can be used to reduce flicker artifacts. The projector comprises: a light source; a premod display; a prime display, the premod display configured to modulate light from the light source to illuminate the prime display; and, a computing device.
Christie Digital Systems Usa, Inc.

Image processing device, image display device, image processing method, and image display method

[object] to provide an image processing device capable of outputting audio acquired as an audio data signal by capturing an arbitrary image. [solution] provided is an image processing device, including: a separation unit that separates a flicker pattern from an image obtained by capturing, at multiple exposure times, an image containing a scene that emits light on a basis of a flicker pattern converted from an audio signal; and a conversion unit that converts the separated flicker pattern to an original audio signal..
Sony Corporation

Information processing apparatus

[object] to enable more advanced utilization of the captured image by utilizing the flicker component that is generated in the captured image. [solution] there is provided an information processing apparatus including: an image acquisition unit that acquires a captured image; a key information acquisition unit that acquires key information for extracting a light temporal modulation component included in the captured image; and a modulation component extraction unit that extracts the modulation component from the captured image on the basis of the key information..
Sony Corporation

Variable vcom level generator

A variable vcom level generator circuit generates a variable vcom voltage level. A variable vcom voltage can be used for variable refresh rate display technology to prevent flicker on a display panel.
Iml International

Combination of a ceiling fan and heater with light effects

A combination assembly or apparatus of a ceiling fan and heater. The combination assembly or apparatus includes a ceiling fan, a heater, a fan to blow air across the heater, a translucent band, motor driven rotating reflective foils each having mounted therein a light source (e.g.
Safety Quick Lighting & Fans Corp.

Logarithmic pixels with correlated double sampling

An imaging pixel may be operated in either a linear mode or a logarithmic mode. In the logarithmic mode, the voltage at a floating diffusion region may be proportional to the logarithm of the intensity of incident light.
Semiconductor Components Industries, Llc

Dithering a clock used to update a display to mitigate display artifacts

A display device can use clock dithering to spread the frequency spectrum of the clock signal (and the signals derived therefrom) to mitigate interference with other components or systems in a host device. However, dithering the clock signal can introduce display artifacts into the display device.
Synaptics Incorporated

Ballast circuit

A ballast circuit suitable for driving an led or similar load, comprises a primary switch mode converter, means for measuring a modulation, such as a phase cut, as used for dimming light levels, on an input ac supply, a current regulator positioned in series with the load, and a feedback controller for controlling operation of the switch mode controller based upon measured modulation levels. The feedback controller is adapted to interrupt normal switching of the switch mode converter if modulation levels detected lead to the ballast working at a lower than desired efficiency (deep dimming), or if voltage levels across the current regulator are higher than desired.
Accuric Ltd

Methods and arrangements for generating a waveform for frequency shift keying communications

Embodiments may provide a way of communicating via an electromagnetic radiator, or light source, that can be amplitude modulated such as light emitting diode (led) lighting and receivers or detectors that can determine data from light received from the amplitude modulated electromagnetic radiator. Some embodiments may provide a waveform in the form of chips at a chipping clock frequency that switch a light source between on and off states to communicate via light sources that can be amplitude modulated such as led lighting.
Intel Corporation

Liquid crystal display panel, liquid crystal display device, and pixel array

A pixel array for a liquid crystal display device is provided. The liquid crystal display device includes a plurality of scanning lines and a plurality of data lines.

Liquid crystal panel, liquid crystal display, and pixel array

A pixel array for a liquid crystal display (lcd) device is provided. The pixel array has a plurality of pixel units, which constitutes a plurality of even pixel columns and a plurality of odd pixel columns and being respectively connected with the plurality of data lines.
Shenzhen China Star Optoelectronics Technology Co. Ltd.

Methods and systems for pulsed illumination

Methods and systems for performing an ophthalmic surgical procedure include pulsed illumination of target tissue. The systems may include an illumination instrument arranged to illuminate tissue at a surgical site during the ophthalmic surgical procedure.
Novartis Ag

Apparatus for use in the measurement of macular pigment optical density and/or lens optical density of an eye

An apparatus for use in the measurement of the optical density of macular pigment in the human eye, and an apparatus for the use in measuring the lens optical density of a human eye. The apparatus is particularly applicable to flicker photometers, which are used to measure the macular pigment in the human eye..
Guardion Health Sciences, Llc

Jnc Petrochemical Corporation

. .

Led drive circuit having improved flicker performance and led lighting device including the same

Disclosed are a light emitting diode (led) driver circuit having improved flicker performance and an alternating current-driving type led lighting device including the same. The led driver circuit can remove an led off period using a charging and discharging circuit during a compensation period so as to reduce light output deviation of an led lighting device, and provide a driving voltage to another element of the led lighting device, using the charging and discharging circuit during an additional discharging period so as to simultaneously improve power efficiency..
Seoul Semiconductor Co., Ltd.

Gamma reference voltage ripple filter circuit and liquid crystal display

The present invention discloses a gamma reference voltage ripple filter circuit and a liquid crystal display, including: a filter module to receive the gamma reference voltage from the gamma reference voltage circuit, filter the gamma reference voltage, and output the filtered gamma reference voltage to a thin film transistor liquid crystal display; a detection module to detect the filtered gamma reference voltage and obtain a detection voltage; a comparison module to compare the detection voltage and obtain a comparison result; and a regulator module to regulate the filter module according to the comparison result, and make the ripple of the filtered gamma reference voltage in a in a default range. The disclosure can stable the voltage difference in the two terminals of the liquid crystal, avoiding the instability of the reversing angle of the liquid crystal to produce flicker phenomenon, affecting the display quality..
Shenzhen China Star Optoelectronics Technology Co. Ltd.

Optoelectronic circuit with low-flicker light-emitting diodes

An optoelectronic circuit for receiving a variable voltage having alternating increasing and decreasing phases. The optoelectronic circuit includes an alternating arrangement of resistive elements and light-emitting diode sets mounted in series.
Aledia

Image capturing apparatus, image capturing method, and control method

There is provided an image capturing apparatus comprising an image capturing unit. A control unit controls the image capturing unit to capture a first image having exposure unevenness caused by flicker in a light source.
Canon Kabushiki Kaisha

Field-sequential image display device and image display method

A subframe data generation unit 12 selects pixels sequentially and performs the following processing on the selected pixel p. The minimum value of brightness dr, dg, db of three colors is defined as distributed brightness ds, and a distribution ratio α is set to a value of 1 at which color breakup is the smallest.
Sharp Kabushiki Kaisha

Liquid crystal display device

The present invention provides a liquid crystal display device with reduced power consumption as well as reduced flicker. The liquid crystal display device is one in a transverse electric field mode, including: paired substrates; a photo-alignment film disposed on at least one of the substrates; a horizontal alignment liquid crystal layer disposed between the substrates; and pixels arranged in a matrix form, the liquid crystal layer containing liquid crystal molecules with a bicyclohexyl skeleton and liquid crystal molecules with a difluorobenzene skeleton, the liquid crystal layer having negative anisotropy of dielectric constant, one of the substrates including tfts disposed in the respective pixels, the tfts each including a semiconductor layer that contains an oxide semiconductor, the liquid crystal display device having a frame rate of lower than 50 hz..
Sharp Kabushiki Kaisha

Array substrate, liquid crystal display panel and liquid crystal display device

The array substrate, the liquid crystal display panel and the liquid crystal display device of the present disclosure are designed to from the mis storage capacitor by the p—si semiconductor layer, the first metal layer and the insulating layer between above or the p—si semiconductor layer, the second metal layer and the dielectric spacer layer between above, when one side of the first metal layer or the second metal layer receiving the negative gray voltage, the p—si in the p—si semiconductor layer will gather to form the hole, when receiving the positive gray voltage, will form the depletion layer on the upper layer of the p—si to reduce the capacity of the mis storage capacitor, thereby reducing the difference of the capacitance when the mis storage capacitor in the positive and negative gray voltage, improving the flicker phenomena and ensuring the display effect.. .
Wuhan China Star Optoelectronics Technology Co., Ltd.

Liquid-crystal display element

The present invention provides a liquid crystal display element that exhibits a large potential-difference gradient due to inter-electrode distance in ffs mode or the like and contains one or more compounds selected from the group of compounds represented by general formula (i) and one or more compounds selected from the group of compounds represented by general formula (ii). The liquid crystal display element of the present invention provides a liquid crystal display element which uses a liquid crystal composition with negative dielectric anisotropy and makes it possible to realize excellent display characteristics such as flicker when used in a liquid crystal display element that exhibits a large potential-difference gradient due to inter-electrode distance in ffs mode or the like, without deteriorating the burn-in characteristics of the display element or various liquid crystal-display-element characteristics such as dielectric anisotropy, viscosity, maximum nematic-phase temperature, nematic-phase stability at low temperatures, or γ1..
Dic Corporation

Systems and methods for fuser power control

A method of controlling the temperature of a fuser is disclosed. The fuser is driven with a repeated sequence of half-cycles of an ac line voltage.
Lexmark International, Inc.

Method of reducing digital video flicker

Methods of reducing digital video flicker, and related systems, devices and computer program products are provided. A method of reducing human-perceivable flicker in a digital video is provided, in which video frames are recorded unevenly with respect to time and in synchronization with a lighting flicker frequency.
Apical Ltd

Image capturing apparatus and operating the same

An image capturing apparatus and a method of operating the same are provided. The image capturing apparatus includes: an imaging device configured to obtain, based on a previously set exposure condition, an imaging signal that corresponds to at least one frame; a flicker information determining circuitry configured to determine flicker information of a light source using the imaging signal that corresponds to the at least one frame; and a controller configured to control, based on the flicker information of the light source, an exposure start time of the imaging device in order to take into account flicker occurrence due to the light source..
Samsung Electronics Co., Ltd.

Liquid crystal display device

The subject is to shown a liquid crystal display device that has characteristics such as a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio, a long service life and a small flicker rate. The disclosure relates to a liquid crystal display device having an electrode group formed on one or both of a pair of substrates that are opposed to each other, and a plurality of active devices connected to the electrode group, and a liquid crystal alignment film formed on the opposing surfaces of the pair of substrates, and a liquid crystal composition sandwiched in between the pair of substrates, wherein the liquid crystal alignment film includes a polymer having a photodegradable group, and the liquid crystal composition includes at least one compound selected from the group consisting of compounds represented by formula (1) as a first component:.
Jnc Petrochemical Corporation

Led tube lamp including light strip including a pad and an opening formed on the pad

An led tube lamp is disclosed. The led tube lamp includes a filtering circuit, an led lighting module, and an anti-flickering circuit.
Jiaxing Super Lighting Electric Appliance Co., Ltd

Electronic circuit for driving led strings so as to reduce the light flicker

Led strings cascaded to one another are driven by an electronic circuit that includes regulation modules and a brightness-compensation module. The regulation modules carry out in sequence a current-regulation phase, in which they regulate the current that flows in the corresponding led strings.
Stmicroelectronics S.r.l.

Digital driving oled display device

The present invention provides a digital driving method of an oled display device, and the input front end data analysis module analyzes the data signals of at least two adjacent frames of image, and the oled display device divides the data signals of each frame of image in the at least two adjacent frames of image into a plurality of subframes according to an order of display times, and adjusts an order of various color components outputted by the plurality of subframes corresponded with the data signals of each frame of image according to an analysis result of the data signals of at least two adjacent frames of image to prevent the new integral effect generates between the two adjacent frames of image because the data signals are different, and thus to eliminate the flicker and raising the image display quality.. .
Shenzhen China Star Optoelectronics Technology Co. Ltd.

System and detecting flame within a burner

A burner with a flame detector is provided. An atomizing chamber has an aperture.
Babington Technology, Inc.

Electric lighting device

Electric lighting devices are described having a candle body with an upper surface coupled to a sidewall. A flame element is disposed entirely outside of the candle body and include one or more magnets or a ferrous material.
Luminara Worldwide, Llc

Solid-state imaging apparatus and driving solid-state imaging apparatus

A solid-state imaging apparatus includes: a pixel unit (1) configured to perform imaging of a plurality of frames by a photoelectric conversion; an exposure amount calculating unit (9) configured to calculate exposure amounts of the plurality of frames imaged in a flicker cycle of a light source; and a control unit (12) configured to control the exposure amount of each of the frames imaged by the pixel unit based on the exposure amounts of the plurality of frames calculated by the exposure amount calculating unit.. .
Canon Kabushiki Kaisha

Techniques for optical wireless communication

Optical wireless communication techniques are described and claimed. In one embodiment, the disclosure relates to method and apparatus to provide optical signaling with visible light having variable pulse position modulation (vppm).
Intel Corporation

Display panel, for measuring screen flickering, and display device

The present disclosure provides a display panel, a method and a device for measuring screen flickering, and a display device. The display panel includes a substrate, data lines and gate lines arranged on the substrate and crossing each other, and subpixel units defined by the data lines and the gate lines.
Boe Technology Group Co., Ltd.

Common-mode impedance network for reducing sensitivity in oscillators

A low-complexity differential inductor and common-mode impedance network for reducing effects of flicker noise in an oscillator output signal have been disclosed. An oscillator includes a planar conductive loop comprising a first terminal, a second terminal, and a center tap.
Silicon Laboratories Inc.

Liquid crystal display device

The present invention provides a liquid crystal display device which can be miniaturized while preventing display defects such as flicker. The present invention relates to a liquid crystal display device including a wiring connected to an electrode to supply a common signal.
Sharp Kabushiki Kaisha

Electric lighting devices that simulate a flickering flame

Various embodiments of electric lighting devices, and especially electric candles, are described. The devices include a projection screen onto which light can be emitted.
Luminara Worldwide, Llc

An optical device that produces flicker-like optical effects

An optical device that produces flicker-like optical effects is provided. The inventive device employs directionally cured image icons.
Visual Physics, Llc

Image sensor circuit removing flicker and camera device including the same

An image sensor circuit includes an image sensor, a flicker detector and a flicker compensator. The image sensor generates frame data for a plurality of successive frames.
Samsung Electronics Co., Ltd.

Lcd panel of dot inversion mode

The invention provides an lcd panel of dot inversion mode; without changing source driving power-consumption, adjusting the routing inside lcd panel: for even numbers n, the adjacent (n−1)-th gate scan line (g(n−1)) and n-th gate scan line (g(n)) are disposed closely, with tfts of (n−1)-th column located above (n−1)-th gate scan line (g(n−1)), and tfts of n-th column located below n-th gate scan line (g(n)); the gates of part of the tfts of (n−1)-th column and n-th column are connected to (n−1)-th gate scan line (g(n−1)), and the gates of part of tfts of the (n−1)-th column and n-th column are connected to n-th gate scan line (g(n)); with a jumper design on the end of a de-multiplexer to change the parity inversion mode of lcd panel to achieve dot inversion. As such, the invention overcomes the flicker and crosstalk problems and improve lcd panel display quality..
Wuhan China Star Optoelectronics Technology Co., Ltd.

Thin film transistor substrate

Disclosed is a display device having a thin film transistor substrate, which may prevent afterimage and flicker defects by reducing the non-uniformity of an electric field. In the thin film transistor substrate, a pixel electrode includes a transparent edge electrode and a transparent inner electrode, which are spaced apart from each other with a first slit having a first width interposed therebetween, and a common electrode is exposed from the other-side end of the transparent edge electrode by a second width, which is smaller than the first width, in the width direction of a data line.
Lg Display Co., Ltd.

Flame simulating assembly with flicker element including paddle elements

A flame simulating assembly including light source(s), a screen to which light from the light source(s) is directed, to provide images of flickering flames thereon, and a rotatable flicker element for reflecting the light from the light sources toward the screen. The flicker element includes a number of paddle elements located in respective predetermined locations on the rod.
Dimplex North America Limited

Electric candle having flickering effect

Various designs of electronic lighting devices are disclosed. Contemplated electronic lighting devices comprise a housing, a base, and a light source holder.
Luminara Worldwide, Llc

Led driver, lighting system using the driver and driving method

A lighting controller and a control method make use of a fade time over which the light source is to be controlled when adjusting the light source output from a first dimming level to a second dimming level. The fade time is selected in dependence on both the difference between the first and second dimming values and the absolute values of the first and second dimming levels.
Philips Lighting Holding B.v.

Liquid crystal devices

A lcd includes the sub-pixels arranged at least in two adjacent rows. The sub-pixels of the same color are interleaved with each other along the column direction.
Shenzhen China Star Optoelectronics Technology Co. Ltd.

Liquid crystal panel common electrode voltage adjustment device and liquid crystal panel common electrode voltage adjustment method

The present invention provides a liquid crystal panel common electrode voltage adjustment device and a liquid crystal panel common electrode voltage adjustment method. The liquid crystal panel common electrode voltage adjustment device includes a detection unit, a data collection unit, a process unit and an adjustment unit, and the detection unit detects a flicker condition of the liquid crystal panel in an activation state, and the data collection unit collects a common voltage value as the flicker exceeds a predetermined range to obtain a first common voltage, and the process unit obtains a control signal according to the first common voltage, and the adjustment unit sends a corresponding adjustment signal, and the adjustment signal adjusts the common voltage to be a second common voltage, and as the second common voltage is applied to the liquid crystal panel, the flicker of the liquid crystal panel is controlled in the predetermined range..
Shenzhen China Star Optoelectronics Technology Co. Ltd.

Lubricant applicator, cleaning device, and image forming apparatus

A lubricant applicator incorporated in a cleaning device disposed in an image forming apparatus having an image bearing member on which an image containing toner is formed, includes: a lubricant supplying unit that supplies lubricant; a brush roller that scrapes off the lubricant to apply the lubricant to a surface of the image bearing member; and a flicker member positioned on an upstream side from the lubricant supplying unit in a rotation direction of the brush roller, the flicker member coming into contact with the brush roller, wherein the flicker member is a plate-shaped member in which an opening is formed, the flicker member having elasticity to be allowed to elastically rock by coming into contact with the brush roller, and the opening is formed in a region with which the brush roller comes into contact.. .
Konica Minolta, Inc.

Light source module and projection apparatus using the same

A light source module including a light source and a light diffusion and filtering plate is provided. The light source is configured to provide an illumination light beam.
Coretronic Corporation

Mounting mechanisms for electronic lighting devices

Flameless candles are described that improve the mounts used to support the flame element. The improved mounts can include a support base or a hook for movably supporting a flame element.

Holographic display

Disclosed herein is a holographic display which enables stereoscopic display of colors by changing a structure and mitigates a flickering effect by lowering the response speed. The holographic display may deliver an image to different positions for the left eye and right eye at the same time, thereby lowering the frequency necessary for supply of holographic image information.
Lg Display Co., Ltd.

Display apparatus and controlling method thereof

A display apparatus and a controlling method thereof are provided. The display apparatus may include: a display panel that displays a screen; a light source disposed at one side of the display panel; an audio input that receives an audio signal; and a processor that flickers the light source in response to the received audio signal..
Samsung Electronics Co., Ltd.

Liquid crystal panels and the arrays substrates thereof

A liquid crystal panel and the array substrate thereof are disclosed. The array substrate includes a switch controller respectively connects with the first scanning line and the second scanning line.
Shenzhen China Star Optoelectronics Technology Co. Ltd.

. .

Flicker-free remoting support for server-rendered stereoscopic imaging

A system includes a memory, one or more processors, a guest virtual machine, a hypervisor, and a client. The hypervisor receives, from the client, a first notification of stereoscopic capability.

Image processing apparatus, image processing method, program, and image sensor

An image processing apparatus as one aspect of the present disclosure includes: a row integration ratio calculation unit that divides a first row integration value by a second row integration value for each row, to calculate a row integration ratio; a reference value generation unit that generates a reference value for each row; a reference value integration unit that multiplies the integration ratio by the reference value for each row and integrates multiplication results corresponding to all rows, to calculate a sum of the multiplication results of the integration ratios and the reference values; a flicker parameter estimation unit that estimates a flicker parameter of flicker generated in the first exposure image on the basis of the sum; and a flicker correction unit that corrects the flicker generated in the first exposure image on the basis of the estimated flicker parameter. The present disclosure can be applied to an image sensor..

Imaging apparatus equipped with a flicker detection function

An imaging apparatus equipped with a flicker detection function includes an image sensor of a rolling shutter type, calculates a fourier spectrum including an amplitude and a phase for each of two captured images acquired by the image sensor of the rolling shutter type and having different imaging timings by performing fourier spectrum analysis based on a flicker period serving as a detection target, and judges that flicker with the flicker period serving as the detection target has occurred, when the amplitude of a calculated fourier spectrum and the phases of the two fourier spectrums satisfy predetermined conditions.. .
Casio Computer Co., Ltd.

Method and system for driving display panel

Disclosed is a method and system for driving a display panel, which relates to the technical filed of displays, and is able to solve the technical problem of undesired display effect resulting from flickers and blurred screens appeared on areas between the sub-areas of the display device. The present disclosure can be used in liquid crystal televisions, liquid crystal display devices, mobile phones, tablet pcs, etc..
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Jnc Petrochemical Corporation

. .

Led drive circuit with improved flicker performance, and led lighting device comprising same

An alternating current sequential drive type led lighting device having improved flicker performance and being capable of reducing the light output deviation of the led lighting device generated during operation intervals by removing nonluminous intervals of the led lighting device by means of a loop-back compensation unit.. .
Seoul Semiconductor Co., Ltd.

Dimming control method and circuit thereof

A dimming control method and circuit thereof are provided. After receiving a triac signal with at least one positive/negative half cycle waveforms, the turning points of the positive/negative half cycles are detected to obtain the conduction angles of the positive/negative half cycle waveforms.
Industrial Technology Research Institute

Photographing apparatus, controlling the same, and computer-readable recording medium

A photographing apparatus includes: a photographing unit that captures a first image with a first exposure time that is set to the photographing apparatus and a second image with a second exposure time that is determined according to a flicker frequency of illumination; and an image processing unit that removes flicker by using the first image and the second image.. .
Samsung Electronics Co., Ltd.

Method of driving display panel and display performing the same

A method of driving a display panel includes dividing an input image into a plurality of segments; generating flicker levels of respective ones of the segments; determining a frame rate of the display panel based on the flicker levels of the segments; and outputting a data voltage to the display panel at the frame rate.. .
Samsung Display Co., Ltd.

Liquid crystal display device

There is provided a high-definition liquid crystal display device that can prevent flicker due to a reduction in the pixel potential in a low-frequency drive of about 10 hz to reduce power consumption. The pixel has a tft formed of poly-si as a switching element.
Japan Display Inc.

Mounting mechanisms for electronic lighting devices

Flameless candles are described that improve the mounts used to support the flame element. The improved mounts can include a support base or a hook for movably supporting a flame element.

Adaptive power balancing in led lamps

A lighting system and a method are provided with an adaptive power balancing scheme which reduces or eliminates flicker by sensing the operation of a lamp that is connected to an electronic transformer and adaptively controlling the drive circuit of the lamp to prevent unexpected reset of the electronic transformer. There is provided a lamp with a light source and a drive circuit for the light source; said drive circuit has a power stage for regulating a voltage supplied to the light source, an energy storage device, and control means arranged to selectively disable the power stage.
Iwatt Integrated Circuits (shenzhen) Limited

Light-emitting module

The light-emitting module according to one embodiment comprises first to nth light-emitting element packages (wherein n is a positive integer greater than or equal to 1), which are connected in series to one another, and a current level regulator for regulating the level of current flowing through the nth light-emitting element package. Each of the first to nth light-emitting element packages comprises a light-emitting cell comprising a plurality of sub-cells, which comprise at least one light-emitting element and are connected in series or parallel to one another, and a flicker control unit, which is connected between the plurality of sub-cells and selectively forms the path or current flowing through the light-emitting cell according to the level of an external driving voltage.
Lg Innotek Co., Ltd.

Image pickup apparatus capable of reducing influence of flicker, method of controlling the same, and storage medium

An image pickup apparatus capable of reducing influence of flicker while suppressing delay of start of photographing. An image pickup device and a photometric sensor pick up images of an object.
Canon Kabushiki Kaisha

Flickering electronic candle

The present invention provides a flickering electronic candle, comprising a candle body, where the candle body comprises a first cylinder, a second cylinder connected with the first cylinder and a third cylinder connected with the second cylinder; a flickering candle wick movably arranged in the first cylinder through a support structure, with a flame front arranged at the top of the flickering candle wick and a magnet arranged at the bottom of the flickering candle wick; and a driving chip arranged in the second cylinder. The flame front is in a hollow flame shape, and an led (light emitting diode) bulb is further arranged in the flame front.
Nantong Ya Tai Candle Arts & Crafts Co., Ltd.

Display and computer-readable medium

A display method, device and a computer-readable medium are provided. The method includes: detecting whether there is any change in a displayed content for the display; in response to detecting that the displayed content for the display does not change, controlling the display to alternately update display data corresponding to a first portion and a second portion of display units in each row when the display unit comprises m rows of pixels; and in response to detecting that the displayed content for the display does not change, controlling the display to alternately update display data corresponding to a third portion and a fourth portion of display units in each column when the display unit comprises n columns of pixels.
Xiaomi Inc.

Liquid crystal display device

The subject is to show a liquid crystal display device that has characteristics such as a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio, a long service life and a small flicker rate. The disclosure relates to a liquid crystal display device including an electrode group formed on one or both of a pair of substrates that are opposed to each other, and a plurality of active devices connected to the electrode group, and a liquid crystal alignment film formed on the opposing surfaces of the pair of substrates, and a liquid crystal composition sandwiched in between the pair of substrates, and the liquid crystal composition includes at least one compound selected from the group of compounds represented by formula (1) as a first component..
Jnc Petrochemical Corporation

Source driver ic chip

A source driver ic chip, designed to prevent flicker in images displayed on a display panel while suppressing power consumption and heat generation, includes: a reference gradation voltage generating part (220) configured to generate a reference gradation voltage based on a first or second gamma characteristic of the display panel, using first and second power supply voltages (vh) and (vl) inputted through first and second external terminals (pa2, pa3); and a third external terminal (pa4) for externally outputting said reference gradation voltage. The source driver ic chip further includes first and second gradation voltage generating parts configured to generate first and second gradation voltages respectively, using a reference gradation voltage based on a first gamma characteristic inputted through a fourth external terminal and a reference gradation voltage having a second gamma characteristic inputted through a fifth external terminal respectively..
Lapis Semiconductor Co., Ltd.

Flicker detection apparatus and method

A flicker detection apparatus and method where flickers in the video images are detected based on the mean detection values obtained from pairs of neighboring frames in the current frame and the former n frames, which is able to perform flicker detection efficiently, and the detection results are accurate.. .
Fujitsu Limited

Method for correcting flickers in a single-shot multiple-exposure image and associated apparatus

A method for correcting flickers in a single-shot multiple-exposure image and associated apparatus is provided. The single-shot multi-exposure image includes first image data and second image data.
Mediatek Singapore Pte. Ltd.

Transmitter architecture for photoplethysmography systems

An led (light-emitting diode) driver for a photoplethysmography system, including a switched-mode operational amplifier for driving a driver transistor with a source-drain path in series with the led. In a first clock phase in which the led is disconnected from the driver transistor, the amplifier is coupled in unity gain mode, and a sampling capacitor stores a voltage corresponding to the offset and flicker noise of the amplifier; the gate of the driver transistor is precharged to a reference voltage in this first clock phase.
Texas Instruments Incorporated

Led lighting apparatus with improved flicker index

A sequential driving type alternating current (ac) led lighting apparatus including a rectifier connected to an alternating current (ac) power source and outputting a first rectified voltage as a first drive voltage to a light-emitting diode (led) light-emitting device through full-wave rectification of an ac voltage, and an led drive controller configured to detect a first drive voltage applied to the led light emitting device and control sequential driving based on the detected first drive voltage. The led drive controller is configured to set an led drive current in each of operation sections, such that a difference between light output of the led light-emitting device in each of the operation sections does not exceed a predetermined light output deviation..
Seoul Semiconductor Co., Ltd.

Controller for a phase cut dimmable led driver

A control scheme for a dimmable lighting driver is provided. The control scheme may operate with a phase cut type dimmer (leading or trailing edge).
Osram Sylvania Inc.

Imaging systems with flicker mitigation and high dynamic range

An image pixel may include a shutter element that is operable in an open state during which a corresponding photodiode accumulates charge and a closed state during which charge is drained from the photodiode. During a first portion of an image frame, the image pixel may operate in a flicker mitigation mode in which a non-continuous exposure period is used.
Semiconductor Components Industries, Llc

Imaging apparatus with a flicker detection function

An external light source with a blinking period serving as a flicker occurrence factor can be reliably and quickly detected under any imaging environment from among a plurality of different external light sources with blinking periods. When a frame period where the phase of an imaging frame coincides with the blinking period of an external light source at a predetermined frame interval is to be set as a frame period for flicker detection, a frame period where the phase of an imaging frame coincides with the blinking periods of a plurality of different external light sources at different frame intervals is set as a frame period for flicker detection.
Casio Computer Co., Ltd.

Gate driving circuit, display device and gate pulse modulation method

A gate driving and modulating circuit, for reduced flicker on a display, includes a first discharge circuit and a plurality of interconnected gate drivers. The plurality of gate drivers is electrically coupled to ground through the first discharge circuit.
Fitipower Integrated Technology, Inc.

Liquid crystal display device

Provided is a liquid crystal display device that can further reduce flicker. The liquid crystal display device includes a control unit that controls the luminance of a backlight using pwm dimming.
Eizo Corporation

Flicker noise, power consumption, and pulling reduction techniques for voltage-controlled oscillators (vcos)

Certain aspects of the present disclosure provide methods and apparatus for reducing flicker noise, power consumption, and/or frequency pulling in voltage-controlled oscillators (vcos). One example vco generally includes an active negative transconductance circuit and a resonant circuit connected between a voltage rail for the vco and the active negative transconductance circuit, wherein the resonant circuit is configured to resonate at a frequency of an oscillating signal generated by the vco.
Qualcomm Incorporated

Traffic accident occurrence notification system using led display lamps

The present invention relates to a traffic accident occurrence notification system using led display lamps, comprising: an emergency message generating unit provided in a mobile means so as to generate a wireless signal in an emergency situation; a plurality of led display lamps provided together with street lamps provided on a road so as to receive the wireless signal from the emergency message generating unit and display a turned-on or flickering state from a position at which the wireless signal is received to a position at which a distance is set at a rear; and a street lamp control server for controlling the street lamps and the led display lamps and determining the position at which the wireless signal is received so as to transmit information thereof to a rescue server. The present invention provides the emergency message generating unit in a vehicle so as to detect an accident or enable a driver to recognize an emergency situation and select propagation of the emergency situation, and enables a nearby street lamp to receive the wireless signal when the emergency message generating unit transmits the wireless signal so as to turn on or flicker the led display lamps such that the led display lamps located at the rear of a distance set at a corresponding position are turned on or flicker so as to make a driver in a rearward vehicle recognize the occurrence of the emergency situation ahead, thereby preventing the occurrence of a secondary collision accident..
Kmw Inc.

Cancelling noise caused by the flicker of ambient lights

Systems and methods for cancelling noise caused by the flicker of ambient lights are provided. Such noise cancelling systems and methods may be incorporated in a laser-based barcode scanning device.
Hand Held Products, Inc.

Primary side controlled led driver with ripple cancellation

Described herein are methods and circuits for improving the performance of an ac to dc power supply. The methods and circuits achieve high power factor (pf) at the ac side and at the same time, reduce or substantially eliminate ripple in the dc output power.
Queen's University At Kingston

Pixel circuit, organic electroluminescent display panel and display apparatus

The present disclosure discloses a pixel circuit, an organic electroluminescent display panel and a display apparatus. By adding one switch module in the pixel circuit, the abnormal drive current output by the driving module may be prevented from flowing to the light emitting device during a first frame of display picture as startup, and thus the problem of screen flicker can be overcome in the screen of the first frame when the display panel is started up..
Chengdu Boe Optoelectronics Technology Co., Ltd.

Flashlight with different flashing colors and frequency

The present invention provides a flashlight, and more particularly a flashlight with two different color lights and flicker frequencies. The flashlight comprises an anterior main body having a lamp housing, a posterior main body having a battery holder, a connecting base used to connect with the battery holder, and a starter for turning on/off the flashlight.
Li-yen Chen

Liquid crystal display panel

A flicker-reduced liquid crystal display panel diminishing resistance-capacitance phenomena includes a plurality of parallel scanning lines and a plurality of parallel data lines, all lines intersecting with each other at the crosses. The liquid crystal display panel further includes a pulse control circuit and a gate driver.
Century Technology (shenzhen) Corporation Limited

Communication method and communication system

A command sequence is restarted from the middle even when supply of power supply voltage to an internal circuit in a wireless tag is temporarily stopped (a power flicker occurs). A register or a cache memory included in a signal processing circuit in the wireless tag continues to retain data even after the supply of power supply voltage is stopped.
Semiconductor Energy Laboratory Co., Ltd.

Indication system and electronic device utilizing the same

An indication system indicates a first power supply unit and a second power supply unit working in a first operation mode or a second operation mode. The indication system includes a power distribution board, a motherboard, and an indication unit.
Hon Hai Precision Industry Co., Ltd.

Liquid crystal display device and electronic device

A flicker of an ffs liquid crystal display device that is driven at a low refresh rate is reduced. In an ffs liquid crystal display, a pixel electrode and a first common electrode included in a liquid crystal element are formed on an element substrate side, and a second common electrode is formed on another substrate (counter substrate) side.
Semiconductor Energy Laboratory Co., Ltd.

Driving circuit and lighting light emitting diode

Disclosed herein are a driving circuit and a lighting apparatus for a light emitting diode capable of improving a flicker, light efficiency, and electrical characteristics. The disclosed driving circuit for a light emitting diode includes: a dimmer modulating an ac voltage input depending on a selected dimming level; a rectifier full-wave rectifying the modulated ac voltage output from the dimmer to generate and output a driving voltage; and a driving module receiving the driving voltage of the rectifier to detect the selected dimming level and controlling a driving mode of a plurality of light emitting diode groups depending on the detected dimming level, in which the driving module selects one of a resistance driving mode driving all the plurality of light emitting diode groups and a sequential driving mode sequentially driving the plurality of light emitting diode groups to improve light efficiency and electrical characteristics..
Seoul Semiconductor Co., Ltd.

Identification of flicker and banding in video

An illustrative device has a user interface configured to receive a user input, a processor, and a display configured to display a temporal difference map. The processor is configured to receive a plurality of digital images comprising a first digital image and a second digital image.
Sound Devices, Llc

Electrically illuminated flame simulator

An electrically powered flame simulator comprises at least two light sources, an integrated circuit electrically connected to the light sources for intermittently illuminating at least one of the light sources independently of other light sources such that the light sources together provide the effect of a flickering movement, and a power source for providing power to the integrated circuit. The flame simulator may be mounted in a decorative or ornamental device such as a candle or fire log, or used on decorative clothing, or may be part of a hazard or warning system.
Nii Northern International Inc.

Method for detecting electronic lighting flickering

A method for detecting electronic lighting flickering includes: taking a video of an electronic light with a duration of a predetermined period and a scanning frequency; extracting a predetermined number of frames of pictures from the video; determining a flickering frequency of the electronic light; determining at least one fixed reference point at each frame; and reconstructing a brightness waveform of the electronic light from the reference point in all frames of the video.. .
Gean Technology Co. Limited

Circuit breaker for hierarchically controlling short-circuit current and trips

The invention discloses a short circuit current hierarchical control tripping parameter circuit breaker. According to the invention, resistance of an alloy magnetic resistance body is changed through circuit current, and contract control can be carried out on short-circuit current.
Xiamen Taihang Technology Co., Ltd

Methods of treating hepatic encephalopathy

The application describes treatment of hepatic encephalopathy using gastrointestinal specific antibiotics. One example of a gastrointestinal specific antibiotic is rifaximin.
Salix Pharmaceuticals, Ltd

Image processing device, image processing method, electronic apparatus, and program

The present technology relates to an image processing device, image processing method, electronic apparatus, and program, capable of performing motion detection allowing the effects by periodic noise such as flicker to be reduced. An image processing device includes an intensity ratio calculation unit configured to calculate a ratio relating to an intensity of a signal value at a predetermined position in an image captured under different exposure conditions, and a contribution calculation unit configured to calculate a contribution indicating whether an intensity ratio calculated by the intensity ratio calculation unit is derived from a periodic noise component or is derived from motion.
Sony Corporation

Image pickup apparatus that performs process of detecting change in brightness, control method therefor, and storage medium

An image pickup apparatus capable of appropriately performing a flicker detection process depending on presence or absence of flicker. A detection unit performs a detection process of detecting a change in brightness or a detection process set in advance other than the detection process of detecting the change in brightness depending on an image acquired by picking up a subject every predetermined detection cycle.
Canon Kabushiki Kaisha

Polarizer, manufacturing method thereof, liquid crystal display panel and display device

The embodiments of the present invention disclose a polarizer, a manufacturing method thereof, a liquid crystal display panel and a display device. The polarizer comprises: a polarizing film and a shielding layer located on the polarizing film; wherein the shielding layer comprises a shielding portion for at least covering channels of thin film transistors in the liquid crystal display panel; when the polarizer is used as a lower polarizer in the liquid crystal display panel, the shielding layer additionally arranged on the polarizer can shield the channels of the thin film transistors in the liquid crystal display panel so as to enable them not to be irradiated by the backlight, in this way, it can avoid the thin film transistors from generating leakage current when the channels of the thin film transistors are irradiated by the backlight, thereby being capable of avoiding the liquid crystal display panel from generating defects such as flicker and crosstalk, which may influence the display quality of the liquid crystal display panel..
Hefei Boe Optoelectronics Technology Co., Ltd.

Vehicle running board

A vehicle running board includes a main body, a decorative plate, a light-guiding rod provided with two leds, a covering strip, and a base. The main body has a first recessed surface at its top side and a second recessed surface at its underside, wherein the first recessed surface is provided with a plurality of oblong protrusions and defines a receiving groove, and the second recessed surface defines a receiving space for receiving a controller.
Tayih Lun An Co., Ltd.

Line voltage compensation ac led driving device

Disclosed is a line voltage compensation ac led driving device. The line voltage compensation ac led driving device comprises a line voltage compensation module and an ac led driving module.
Shenzhen Sendis Green Power Integrations Technology Corporation

Mobile terminal equipped with a camera and controlling method thereof

A mobile terminal configured to process images, the mobile terminal comprising: a camera configured to capture images; an image sensor configured to acquire an image signal of an object in an image captured via the camera; an infrared sensor configured to detect an infrared signal reflected from the object; a controller configured to utilize the image sensor to: determine whether flicker is generated; and detect information related to a light source contributing to the generated flicker based on the detected infrared signal; and an image processor configured to perform white balance of the acquired image, the white balance performed based on the detected information if flicker is generated, and provides an effective white balancing method according to types of peripheral light sources through flicker analysis based on the image sensor and the infrared sensor.. .
Lg Electronics Inc.

Systems, methods, and media for extracting information and a display image from two captured images

Systems, methods, and media for extracting information and a display image from two captured images are provided, in some embodiments, systems for extracting information and a display image from two captured images are provided, the systems comprising: a rolling shutter sensor; and a hardware processor coupled to the rolling shutter sensor that is configured to: cause the roiling shutter sensor to capture two captured images; receive the two captured images; and extract the information, and the display image from the two captured images, wherein the information is represented in the captured images as a flicker pattern.. .
The Trustees Of Columbia University In The City Of New York

Pulse width modulation for a head-mounted display device display illumination system

In various embodiments, methods and systems for controlling display illumination is provided. A display illumination system supports maintaining color stability and reducing perceived flicker while changing the brightness of a display.

Light flicker canceling glasses

Most electric light sources flicker, that is, the intensity of the light that is produced varies substantially in a periodically repeating pattern. In sensitive individuals, light flicker can cause headaches and other undesirable symptoms.

Jnc Petrochemical Corporation

. .

Anti-flicker motion detector

An anti-flicker and anti-glow switchable load apparatus to be installed in the light socket of a commonly powered electronic switching device, such as a motion activated light switch. An energy efficient light bulb or lamp, such as a cathode fluorescent lamp or light emitting diode is then screwed into the apparatus.

Arbitrary pulse alignment to reduce led flicker

An arbitrary alignment is provided for a series of pulses controlling a switch that in turn controls a current in an led. Each pulse is generated according to a target time responsive to a reference time in a corresponding cycle of a synchronization clock.
Dialog Semiconductor Inc.

Power supply for led lamp with triac dimmer

A bleeder circuit is provided in a switched mode power supply (smps) that provides a compensation current when the loop current drops below the holding current of the triac to alleviate light flickering problem. Further, automatic power factor correction is also provided in embodiments of the invention, which enables the output current to be in phase with the input voltage.
Bcd Semiconductor Manufacturing Limited

Processor and capable of reducing image flicker and a related method

An apparatus capable of reducing image flicker, including: a processor and an image capture device. The processor is configured to: detect whether a telecom operator is currently offering a telecommunication service to the apparatus; search a mapping history of utility frequencies from a storage device and determine whether the telecom operator is mapped to a utility frequency after detecting that the telecom operator is currently offering a telecommunication service to the apparatus; and obtain the utility frequency mapped to the telecom operator from the mapping history to be a current utility frequency after determining the utility frequency mapped to the telecom operator.
Mediatek Inc.

High dynamic range imaging pixels with logarithmic response

An imaging system may include an image sensor having a pixel array. Each pixel in the image array may include a pinned photodiode and an additional photodiode that is configured to operate in photovoltaic mode.
Semiconductor Components Industries, Llc

Mounting mechanisms for electronic lighting devices

Flameless candles are described that improve the mounts used to support the flame sheet. The improved mounts can include a support base or a hook for movably supporting a flame sheet.

Dynamic power supply for light emitting diode

A voltage control system for an led operates to dynamically determine and set a minimum permissible voltage on an energy storage device such as a capacitor such that the energy storage device operates at a minimum possible voltage to compensate for component variations and dimming signal variations while maintaining flicker-free operation of the led.. .
Soraa, Inc.

Pixel cell circuits of compensation feedback voltage

The present disclosure relates to a pixel cell circuit of compensation feedback voltage. The pixel cell circuit is provided with the compensation capacitance (c_co), one end of the compensation capacitance (c_co) electrically connects to the compensation level wirings g(m)_co, and the other end of the compensation capacitance (c_co) electrically connects to the drain of the tft (t1) and the pixel electrode (p).
Shenzhen China Star Optoelectronics Technology Co. Ltd.

Display driving the same

A display apparatus includes: a backlight to generate light; a display panel to display an image by utilizing the light; a driving part to provide image signals corresponding to the image to the display panel; and a timing controller to drive the backlight, to drive the driving part at a first frequency when the image is a moving image, and to drive the driving part at a second frequency lower than the first frequency when the image is a still image. The timing controller is to set the second frequency based on a value obtained by applying a reduction rate of a flicker index corresponding to a dimming index of the backlight to a flicker index of image signals of a previous frame..
Samsung Display Co., Ltd.

Method for adjusting backlight brightness and electronic device

The present invention discloses a method for adjusting backlight brightness and an electronic device, which relates to the field of manufacturing of liquid crystal displays, and which is used to resolve a problem that, in a process of adjusting backlight brightness of an lcd, a user sees obvious flickering in the light adjustment process. The electronic device includes a light sensor (21) and a microcontroller (22) connected to the light sensor (21), where the light sensor (21) is configured to acquire an ambient luminance signal of a current time point; and the microcontroller (22) is configured to: read the ambient luminance signal of the current time point from the light sensor (21), and obtain through calculation a first target backlight brightness value of the electronic device at the current time point according to the ambient luminance signal of the current time point, where the microcontroller (22) is further configured to: if the electronic device is in a normal screen-on state, adjust from a first initial backlight brightness value to the first target backlight brightness value step by step, where the first initial backlight brightness value is a first target backlight brightness value of the electronic device at a previous time point..
Huawei Device Co., Ltd.

Reduced blur, low flicker display system

A reduced blur, low flicker display system is provided, comprising: a display device comprising an array of pixel devices, each configured to be driven to a given output intensity value by changing each of the pixel devices between at least two intensity values within an image frame, including: a first intensity value and a second intensity value, higher than the first intensity value; and, a computing device configured to: spatially drive the pixel devices, according to image frames of image data, on a pixel-by-pixel basis and independent of one another, to respective output intensity values, according to at least two different spatio-temporal driving modes within a same image frame, a first set of the pixel devices driven according to a first spatio-temporal driving mode, and a second set of the pixel devices driven according to a second spatio-temporal driving mode, each within the same image frame.. .
Christie Digital Systems Usa, Inc.

Solid-state lighting operable with compact fluorescent ballasts and ac mains

A light-emitting diode (led)-based solid-state lamp using an led driving circuit with an electric current control operates normally for a regulated power from either a compact fluorescent (cfl) electronic ballast or ac mains. The led driving circuit together with a matching circuit is configured to optimize resonant characteristics of the cfl electronic ballast used and enhance lamp compatibility without flickering, which in turn reduces possibility of overheating and fires due to incompatibility.
Lightel Technologies, Inc.

Image processing apparatus, image processing method, electronic equipment and program

An estimating unit configured to estimate cyclic noise components included in each image picked up under different exposure conditions for each image is included. The estimating unit estimates the cyclic noise components for each image through operation utilizing mutual relationship between the noise components under the exposure conditions.

Bioresonance frequency emitting device, system, and method

A phototherapy or brt process and apparatus is provided, which, using a pre-recorded bioresonance frequency or compilation of frequencies, causes an emr emitter to emit within a biological window of a target organism to positively or negatively affect the organism. The emr may be generated in one or more leds by a device connected to a controller of the emr emitter which device provides the pre-recorded bioresonance frequency or compilation of frequencies to control the leds' emitted light in terms of its intensity and/or a frequency or flicker-rate..
Wave Force Electronics Inc.

Lighting system for insect control

An insect control system has a light source arrangement (10) comprising one or more light sources with tuneable spectrum, polarization, intensity and or flickering pattern. The system enables a particular type of insect to be attracted or repelled in a particular time period..
Philips Lighting Holding B.v.

Organic light emitting display and driving method thereof

Discussed are an organic light emitting display which can reduce flicker, along with power consumption, and a driving method thereof. In a low-power operation mode of the organic light emitting display, at least one holding frame is placed between writing frames in which image data is written, the output of the source driver is enabled during the writing frames, the output of the source driver is disabled during the holding frames, and the emission driver is controlled during the holding frames to increase the toggle frequency of the emission signal to be higher than or equal to n times the frame frequency (n is a positive integer greater than or equal to 2).
Lg Display Co., Ltd.