|| List of recent Projector-related patents
The present disclosure describes a projector which has: an image projection portion; an image provision portion that provides a projection image to the image projection portion; a deviation movement detection portion that detects a deviation movement of the image projection portion; and an image process portion that based on detection by the deviation movement detection portion, shifts the image provided by the image provision portion in a direction where the deviation movement is corrected. According to this, even if an image projection function does not include a deviation correction function, it is possible to perform the deviation correction by means of the image process..
| 3d shape measurement using dithering|
A method for three-dimensional (3d) shape measurement includes generating fringe patterns using a dithering technique, projecting the fringe patterns onto an object using a projector, capturing the fringe patterns distorted by surface geometry of the object using an imaging device, and performing a fringe analysis to reconstruct a 3d shape of the object using the fringe patterns and the fringe patterns distorted by the surface geometry of the object. The step of generating the fringe patterns using the dithering technique may include binarizing sinuisoidal fringe patterns with the dithering technique.
| Acoustic projector having synchronized acoustic radiators|
A method and system for maximizing radiated power from a linear array of acoustic projectors. In one case, the method realizes omni-directional acoustic beam patterns from a linear array of acoustic projectors contained within an acoustically-impervious enclosure with an acoustically transparent aperture.
| Projector zoom lens and projector|
A projector zoom lens includes a first lens group having a negative refractive power and a second lens group having a positive refractive power. The first lens group includes a first front group having a negative refractive power and a first rear group having a positive refractive power, including a positive meniscus lens with a convex surface on an enlargement side.
| Infrared laser holographic projector|
Systems and methods for infrared laser holographic projection. In one example, an optical apparatus includes a first laser source configured to generate a first laser beam having a first wavelength in an infrared spectral range and a holographic medium optically coupled to the laser source and having a transmittance range including the first wavelength.
| Stabilized pico-projector device and related image stabilization method|
A pico-projector device includes a light source operable to generate a light beam as a function of an image to be generated, a mirror mechanism operable to direct the light beam towards a displaying surface, and a driving circuit that supplies driving signals for controlling movement of the mirror mechanism. The driving circuit includes a compensation stage that receives angular velocity signals from a gyroscopic sensor coupled to the pico-projector device and generates the driving signals as a function of the angular velocity signals, thereby stabilizing the image projected on the displaying surface with respect to undesired movements of the pico-projector device..
| Driving device and driving method for discharge lamp, light source device, and projector|
A light source device includes a discharge lamp including a pair of electrodes arranged to be opposed to each other in a hollow section in which a discharge medium is encapsulated and a driving device. The driving device includes a supplying unit configured to supply an alternating current having a frequency higher than 1 khz to the pair of electrodes in a high-frequency period and a control unit configured to set at least a first frequency higher than 1 khz and a second frequency higher than 1 khz and different from the first frequency as the frequency of the alternating current, switch an alternating current having the first frequency and an alternating current having the second frequency in the high-frequency period, and control the supplying unit to repeat the high-frequency period to supply an alternating current to the pair of electrodes..
| Color wheel driving motor and digital-light-processing projector|
A color wheel driving motor includes a magnet arranged radially outward of a rotor holder. The ring-shaped magnet includes n number of n-pole and n number of s-pole and magnetic pole changeover portions arranged between the poles.
| Projector driven teleprompter|
A teleprompter suited for use with a camera having a lens with a field of view defined by an axis in a forward direction. The teleprompter includes, generally, a reflector supported proximate the lens; a projection screen supported forward of the reflector; a projector supported forward of the reflector for projecting an image on the projection screen so that the image is capable of reflection by the reflector along the axis.
| Polarizing element, projector and method of manufacturing polarizing element|
A polarizing element includes a transparent substrate, a reflective layer constituting, on the transparent substrate, grid-shaped convexities arrayed at a pitch smaller than a wavelength in a used optical bandwidth, a dielectric layer formed on the reflective layer, a diffusion barrier layer formed on the dielectric layer, and an absorbing layer formed on the diffusion barrier layer such that the diffusion barrier layer is sandwiched between the absorbing layer and the dielectric layer. This polarizing element has an excellent optical property and is able to prevent mixing of the absorbing layer and the dielectric layer under a high temperature..
A projector is provided with an image forming device, a light path switching element, a polarization control element, and a polarization plate. The image forming device emits first image light and second image light.
| Variable brightness digital signage|
A system for projecting content onto a shaped screen and highlighting particular portions of the content. The system includes a projector configured for projecting content having a particular shape and a rear projection screen for receiving and displaying the projected content.
| Methods for combining camera and projector functions in a single device|
Described are handheld devices with combined image capture and image projection functions. One embodiment includes modulating and capturing a light beam along the same optic path.
| Optical measurement method and measurement system for determining 3d coordinates on a measurement object surface|
An optical measurement method for determining 3d coordinates of a plurality of measurement points on a measurement object surface. The measurement object surface is illuminated with a pattern sequence of different patterns by a projector, an image sequence of the measurement object surface illuminated with the pattern sequence is recorded with a camera system, and the 3d coordinates of the measurement points are determined by evaluating the image sequence, in particular wherein a succession of brightness values for identical measurement points on the measurement object surface is ascertained in respective images of the recorded image sequence.
| Natural 3d motion for film and video|
“natural 3d motion” is created by the use of moving the camera in a lateral direction with foreground and background elements, at a consistent speed, throughout a scene, in such a way that it allows the viewer time to perceive three dimensional depth and experience immersion in the scene without the use of 3d glasses, 3d projectors or 3d video displays. Its beneficial affects, depending upon the nature of the video/film/movie, including enhancing a sense of calm, especially when the scenes comprise peaceful images beyond the traditional film or movie experience.
| Method and apparatus for setting electronic blackboard system|
Provided are a method and apparatus for setting an electronic blackboard system. In response to a user input to a control apparatus requesting setting of the electronic blackboard, sensitivity of an ir camera is set so that visible rays are detected.
| Fitness apparatus capable of projection|
A fitness apparatus includes a framework, a control panel, and a microprojector. The framework includes a chassis and a handrail stand mounted to the chassis.
|Lens position adjustment apparatus, projector, lens position adjustment method, and lens position registration method|
A lens position adjustment apparatus includes: a transmission unit that is displaced in a first direction oriented from one end point toward the other end point or a second direction oriented from the other endpoint toward the one endpoint to transmit power of a drive source; a conversion unit that moves a lens by using the power supplied from the transmission unit; a drive control unit that controls the drive source; a position detection unit that detects a current position of the transmission unit; and a storage unit that stores a registered position and a registered direction, wherein the drive control unit controls the drive source in such a way that a final displacement direction is the second direction in case that the registered position is within a predetermined amount of displacement from the one end point, and that the final displacement direction is the registered direction otherwise.. .
|Light source device and projector|
In one embodiment, a light source device comprises an arc tube having a first sealing portion extending from a light emission portion. A reflection mirror is attached to neighbor the first sealing portion and has a concave reflection surface.
|Device and method for reducing speckle in projected images|
An image projector includes a light source for displaying light and a diffusing screen coupled to an in-plane vibrator. The diffusing screen is positioned to receive the display light from the light source and generate phase-modulated display light.
A projector adapted to switch between a right-eye image and a left-eye image at predetermined timings to output the right-eye image and the left-eye image alternately, includes: a discharge lamp; a discharge lamp drive section adapted to supply the discharge lamp with a drive current for driving the discharge lamp; and a control section adapted to control the discharge lamp drive section, wherein a period between the switching timings temporally adjacent to each other starts with a first period and ends with a second period, and the control section performs a second period alternating-current control process for controlling the discharge lamp drive section so that an absolute value of the drive current becomes relatively small in the first period, and becomes relatively large in the second period, and an alternating current is supplied to the discharge lamp as the drive current in the second period.. .
|Liquid crystal display apparatus and liquid crystal projector|
Provided is a liquid crystal display apparatus including first and second substrates configured to be arranged so as to face each other, a vertical-orientation-type liquid crystal layer configured to be enclosed between the first and second substrates, pixel electrodes configured to be installed on a side of the liquid crystal layer on the first substrate, an orientation film configured to be installed so as to cover the side of the liquid crystal layer of the pixel electrodes and to have a predetermined orientation restriction direction, and a surface light-blocking layer configured to be installed on a lower layer of an area between the pixel electrodes, to be installed along a side in which a normal line direction and the orientation restriction direction of the orientation film are different by 90 degrees or more, and to be set to a same potential as the pixel electrode.. .
|Systems and methods for projecting composite images|
Embodiments of the present invention comprise electronic projection systems and methods. One embodiment of the present invention comprises a method of creating composite images with a projection system comprising as first projector and at least a second projector, comprising generating a correspondence map of pixels for images by determining offsets between pixels from at least a second image from the second projector and corresponding pixels from a first image from the first projector, receiving a source image, warping the source image based at least in part on the correspondence map to produce a warped image, and displaying the source image by the first projector and displaying the warped image by the second projector to create a composite image..
|Integrated building display and shading system|
An integrated building display and shading system formed of a plurality of exterior building panels arranged in an array, each exterior building panel representing one pixel. A given pixel resides in a first state when a first excitation state is applied to the exterior building panel and can be changed to reside in a second state when a second excitation state is applied to the exterior building panel, thus allowing an image to be presented on the array.
|System and method for sensing multi-touch surfaces by detection of light scatter via a frontal image|
“system and method for multi-touch surface sensing by detection of light spreading through front image”, more particularly developed for composing a new technology especially applied to electronic equipment that use screens with touch-screen technology; the system comprises a set of devices that includes one or more video cameras positioned over a screen or interactive surface, an image projector placed at a distance in relation to the screen or interactive surface, such projector projects an image directed to said surface; one or more video cameras are coupled with a control board, that is responsible for activating leds, and to a method operated by software installed in a computer or dedicated hardware; being the software responsible for applying the method for treating and processing of captured images for determining the position of multiple touches executed on the surface or screen due to the light scattering phenomenon present in the touch point occurred from the interaction of various surfaces that compose the screen with its optical medium and of its synchronism with light emitted by leds positioned in its edge.. .
|Method for processing event of projector using pointer and an electronic device thereof|
A method for performing a function of an electronic device includes outputting an image outside the electronic device, capturing the output image; detecting a trace of a pointer in the captured image, and performing a preset function corresponding to the detected trace of the pointer.. .
|Vehicle with safety projector|
A vehicular alerting system includes at least one light source mounted on a vehicle. The light source is configured to emit a light beam, forming a projection.
|Interactive and multifunctional information unit having autonomous movement|
The invention relates to an interactive and multifunctional information unit having autonomous movement that includes a housing (2) having wheels (3) that are driven by gear motors (4) and rechargeable batteries (5) and are actuated by an electronic controller (10). The unit has a computer (6) having a connection to the internet (7) via wi-fi or 3g mobile telephony, and operational movement control is carried out by radio control, a programmed autonomous system and/or distance or long-distance control via internet.
|Fluorescent image acquisition and projection apparatus for real-time visualization of invisible fluorescent signal|
A fluorescent image acquisition and projection apparatus for real-time visualization of an invisible fluorescent signal is provided. The apparatus visualizes an invisible fluorescent signal generated from a target object (a tissue of a living body, a cell of a living body, or the like) by using a photodetection unit and a projector in real time.
|Dual projection system|
A dual projection system includes a projector, a partially transparent white film, and a partially transparent black film. The still or motion image from the projector is projected directly on the partially transparent white film.
|Portable projector utilizing electrophoretic displays|
This invention is directed to a projector comprising a polarizer-free display device. Such a projector is more energy efficient while the switching speed is not compromised.
|Projector and dimming method|
With the purpose of controlling a light source to appropriately reduce the brightness of reflected light at the time of starting projection according to the conditions under which a projector is being used, the projector includes a solid-state light source unit that emits light, a power supply unit that supplies driving electric power to the solid-state light source unit, an image display device that modulates the light emitted from the solid-state light source unit according to an image signal and that projects the modulated light onto a projection surface, and a detection unit that detects the intensity of the ambient light of the projection surface. Upon receiving a lighting signal that indicates that the solid-state light source unit is to be lit, a control unit controls the power supply unit according to the intensity of the light detected by the detection unit to incrementally raise the driving electric power supplied from the power supply unit to the solid state light source unit..
|Three dimensional image projector stabilization circuit|
A method for providing a feedback circuit for a three dimensional projector. First and second input devices and a sensor for determining the rotational speed of the second input device are provided.
|Mobile interactive projection system with multi-pen input|
A mobile projection system consisting of a projector and an infrared camera positioned on top of the projector with a clear view of the projection when the projector is powered. The device allows, when proper software is installed, multi-pen input support enabling the user(s) to interact with the computer on the projected surface..
|Substrate processing apparatus and substrate processing method|
Provided is a substrate processing apparatus in which flexibility of disposing a device configured to determine a holding state of a substrate and the flexibility of timing of determining the holding state are enhanced. The substrate processing apparatus includes a light projector configured to radiate detection light toward a region where a substrate may exist when the substrate is held by a substrate holding member and a light receiver configured to receive the detection light radiated from the light projector.
|Projector and method for controlling projector|
A projector can not only perform power on/off operation in synchronization with open/close action of a shutter but also provide a screen mute function achieved by the shutter. When the shutter is located in an off position and the period timed by a timer is longer than or equal to a predetermined period during the operation of the projector, the projector is powered off.
|Light projection device|
Provided is a light projection device capable of irradiating light only onto an object (11). The light projection device includes: a light projector (1) in which an object (11) and a back surface of the object (11) are taken as a projectable range; a shadow region detector (2) that detects a shadow that occurs on the back surface of the object (11) by projection light (l1); and a controller (3) that corrects a shadow region (13) so that a projection region of the light projector (1) and the shadow region (13) can coincide with each other on the back surface of the object (11), sets the corrected shadow region 913) as a light projection range and sets, as a non-light projection range, a region other than the shadow region (13), and sets projection light (l1) projected onto the set light projection range, wherein the light projector (1) projects the projection light (l1) onto a range where the object (11) is present by projecting the set projection light onto the set light projection range..
|Front projection ereader system|
Techniques are disclosed for purchasing, accessing, and/or providing electronic content by a projection based ereader. In accordance with one embodiment invention, a projector system is provided that is configured to engage a lighting socket and can be controlled by, for example, a remote control and/or imaged user input actions.
|Method for operating a camera and a projector in a synchronized manner|
A method for synchronizing a camera that has an image sensor with a projector that can generate a synchronization signal which corresponds to the projector frame rate. The projector is operated with a frame rate (f2), and the camera is operated with a frame rate (f1).
Green light from solid-state light source 1g and red light from solid-state light source 1r are irradiated upon display element 5 by way of the same light path, green light from solid-state light source 2g and red light from solid-state light source 2r are irradiated upon display element 6 by way of the same light path, and blue light from solid-state light source 1b is irradiated upon display element 7. Control unit 10 lights solid-state light sources 1g and 1r in time division, causes an image based on first video signal s1 to be displayed on display element 5 during lighting of solid-state light source 1r, and causes an image based on second video signal s2 to be displayed on display element 5 during lighting of solid-state light source 1g.
|Image display device|
A projector includes a first light source group having a plurality of solid-state light sources, a second light source group having a plurality of solid-state light source, and emitting light having a peak wavelength on a longer wavelength side of that of the first light source group, a first regulation section adapted to cool the first light source group, a second regulation section adapted to cool the second light source group, and a control device adapted to control the first regulation section and the second regulation section, and the first regulation section and the second regulation section are controlled so as to approximate the peak wavelengths of the lights emitted respectively from the first light source group and the second light source group to each other when forming a two-dimensional image, or to make the peak wavelengths get further from each other when forming a three-dimensional image.. .
|Information processing apparatus, projecting apparatus, information processing method, and projecting method|
An image processing apparatus is connected to a projector and sends image data to the projector. The image processing apparatus includes an capturing unit that captures a display screen, a storing unit that stores image data of the captured display screen, a difference image generator that generates difference image data by clipping difference between the image data of the captured display screen and image data of a display screen captured previously, a transfer method determining unit that selects either the difference image data or the image data of the display screen as image data to be sent to the projector, and an image transfer unit that transfers the image data to the projector..
|High luminance projection displays and associated methods|
Projection displays include a highlight projector and a main projector. Highlights projected by the highlight projector boost luminance in highlight areas of a base image projected by the main projector.
|Method and system for projecting content to have a fixed pose|
A camera points in a first direction for capturing images of views. Visual features are detected and tracked in the images.
|Near field communication mimic device and method of use|
A nfc mimic device retrieves peripheral information from a peripheral, stores the peripheral information and then mimics the peripheral information to an information handling system so that a nfc device of the information handling system receives the peripheral information as if provided directly from the peripheral. The nfc mimic device supports automated setup a wireless interface between an information handling system and a peripheral, such as a projector..
|Robots comprising projectors for projecting images on identified projection surfaces|
Robots including projectors for projecting images on identified projection surfaces are disclosed. A robot includes a housing, an electronic control unit coupled to the housing, a projector coupled to the housing, a human recognition module coupled to the housing, and a projection surface identification module coupled to the housing.
A method and apparatus is provided for identifying information to facilitate adjusting a projector's position to achieve a specified projected image on a projection surface. In an embodiment, a computing device comprising one or more sensors, which have a known spatial relationship with a projector, includes a position adjustment service configured to identify, based at least in part on the known spatial relationship between the one or more sensors and the projector, a current position of the projector relative to positions of a plurality of reference points that define a projection surface.
|Campus audio-visual control and communication system|
A method and system for distributing audio, visual, data, annunciator and other information within an educational facility utilizes a bit-wise addressing scheme to route udp message packets to individual classrooms. The audio/video network system includes a central processor that controls a plurality of audio/video sources (e.g., dvd players, cable tv receivers, etc.).
|Bifocal head-up display system|
A bifocal head-up display system includes a projector, at least one projection surface in an intermediate image plane, and relay optics to direct a display image to a reflector in a vehicle operator's field of view. The display image includes two image portions focused at different distances from the vehicle operator.
|Screen for front projection apparatus and fabrication method thereof|
A screen for a fresnel type front projection apparatus is provided. The screen includes a reflective layer including a plurality of reflective protrusions which project toward a front of the screen; each of the plurality of reflective protrusions including a reflective surface which forwardly reflects an image light projected from a projector; and an absorbing surface which absorbs an external light.
|Optical scanning device and laser machining device|
An optical scanning device includes: a light projector configured to radiate light while causing the light to make angular movement at a constant speed; and a light reflector configured to reflect the light radiated from the light projector to guide the light to an intended irradiated point on a predetermined scanning line. The light reflector includes a plurality of reflecting portions and reflects, at least twice, the light radiated from the light projector to guide the light to the intended irradiated point.
|Discharge lamp lighting apparatus and projector|
A polarity-reversal control circuit gives a polarity-reversal order so that the polarity of an inverter is inverted each time the polarity-reversal timing notified by a signal is recognized. The number of times of consecutive appearances of a normal polarity-reversal interval period, in which an interval of adjoining polarity-reversal timings is equal to or less than an upper limit of a polarity-reversal interval desirable for a discharge lamp, is counted, and if the unusual polarity-reversal interval period, in which an interval of the adjoining polarity-reversal timing is longer than the upper limit of a polarity-reversal interval, appears, npm is memorized as the maximum of the number of times of consecutive appearances and after that, when the polarity-reversals signal in which the number of times of consecutive appearances becomes equal to npm is received, it is regarded as a start of an unusual polarity-reversal interval period, and additional polarity-reversal order is given..
|Laser projector having a diffuser vibrated by using component of a cooling mechanism|
A projection image display apparatus that enlarges and displays an image includes a case, a laser light source, a cooling mechanism that includes a component that produces vibration during an operation, a diffuser that diffuses light emitted from the laser light source, optics that shape the light that is diffused by the diffuser to light having a uniform luminance distribution and a rectangular cross-section, and an optical modulation element that modulates the light shaped by the optics.. .
|Optical device, projector, and method of manufacturing optical device|
An optical device includes a plurality of light modulators modulating a plurality of incident color lights with respect to each color light, a light combining optical unit having a plurality of light incident surfaces that the plurality of modulated color lights respectively enter, and combining the plurality of entering color lights, a holding part holding the light modulator, and a supporting part loosely fitting and supporting the holding part, and disposed in a location facing the light incident surface of the light combining optical unit, wherein the supporting part has an extending part extending in a direction away from the light incident surface, and a locking part having a first slope is provided in an end part in an extension direction of the extending part.. .
A projection system includes a projector body including a projection lens that projects image light, a color wheel located in a position downstream of the projection lens, a lens moving section that moves the projection lens from an initial position in at least one of an x direction and a y direction, a movement amount detection unit that detects the amount of movement of the projection lens and the position to which the projection lens has been moved, an adjustment section that changes the position and the attitude of the color wheel, and an adjustment controller that controls the adjustment section in accordance with a detection result from the movement amount detection unit to adjust at least one of the position and the attitude of the color wheel.. .
A projector includes an illuminating system and an imaging system. The illuminating system includes a light source module, a lens array, a condenser lens and a display panel, in which light beams are generated by the light source module, uniformly dispersed by the lens array, condensed by the condenser lens, and reflected by the display panel to obtain image light, and the condenser lens has an effective focal length substantially equal to a product of an f-number of the illuminating system and a thickness of the lens array.
Two light modulators, a first light modulator and a second light modulator, suffice for four light sources, a first light source, a second light source, a third light source, and a fourth light source, whereby the cost can be lowered as compared with a configuration in which three light modulators are required. As a result, cost reduction is achieved.
|Digital video camera with a projector|
The invention is a digital video camera and projector that is suitable for use by children or young adults, does not require the user to engage a mechanical switching of the lenses from video camera mode to projection mode.. .
|Projector with enhanced resolution via optical pixel sharing|
A projector configured to provide higher resolution output without increasing pixel resolution in a light modulator is disclosed. The projector may introduce an optical element between a light modulator and an imaging lens.
|Telecentric scale projection system for real-time in-situ surgical metrology|
A system and method for determining endoscopic dimensional measurements including a projector assembly comprising a light source for projecting light through a telecentric lens and into a surgical site, and a mask coupled to the projector assembly. Light projected from the light source projects through the mask.
|Art teaching system and related methods|
An interactive education system for teaching and practicing art and associated methodology. The objective of the system is two-fold.
|Projector type headlight|
A projector type headlight can include a projection lens arranged on an optical axis extending in a longitudinal direction of a vehicle, and a light source unit arranged on a more rear side than a back side focal plane of the projection lens, the projection lens including resin lenses which are arranged on the optical axis. A resin lens out of the resin lenses arranged closer to the light source unit includes a diffraction grating provided on a lens face in a side opposite to a light source, the resin lens out of the resin lenses arranged closer to the light source unit has a lens face having a positive power, which is arranged in a light source side, and the diffraction grating is designed so as to cancel chromatic aberration of light emitted from the light source unit and emitted forward through the resin lenses..
|Fade out optical light masking projector system|
A light projector system, including a light projector device having a light source for producing a light beam, a light mask, an objective focal lens disposed within the path of the light beam, and a gate area. The light projector system also includes a diffusion element disposed within or forward of the gate area along the path of the light beam of the projector device.
|Laser projector with reduced speckle|
Ii. At each point of the surface of the image modulator a more uniform filling of the available angular space..
|Light source apparatus and projector|
A light combiner having a polarization separation film and transmitting p-polarized light from a first light source unit whereas reflecting s-polarized light from a second light source unit forms combined light, and the angle of incidence of the light from the first light source unit and the angle of incidence of the light from the second light source unit with respect to the polarization separation film are each greater than 45°.. .
|Vehicle content projection|
In an example, a content projecting system includes a communication module configured to receive an instruction to project content. The content projecting system further includes a projector configured to be affixed to a vehicle.
|Projector device and method for progecting pictures on a projection screen|
In a method for projecting pictures onto a projection using a projector device, the method triggers a camera of the projector device to capture an image of the projection screen displaying a first picture, and obtains the image of the projection screen from the camera. The method obtains a position, a size and a slant degree of the second picture, and notifies the second electronic device to send the second picture to the projector device.
|Method and apparatus for flicker reduction and contrast enhancement in 3d displays|
A 3d projector system includes a locally modulated polarizer mounted in front of a projector. The polarizer is controllable to produce different polarization states for local regions of the projector images.
|System and method of acquiring three-dimensional coordinates using multiple coordinate measurment devices|
A method is provided of determining three-dimensional coordinates of an object surface with a laser tracker and structured light scanner. The method includes providing the scanner having a body, a pair of cameras, a projector, and a processor.
|Method and device for optical focusing|
A device for optically focusing a projection image projected by a projector includes a detector for controlled creation of at least one observation shot of the projection image over a time period, a processing unit for defining at least one image section within the projection image generated by the projector, where the image section is modulated over the time period with respect to the optical power and/or the optical spectrum thereof, and the at least one image section of the projection image is essentially synchronous compared with the corresponding respective image section of the observation shot, where the processing unit also calculates a variable derived from the comparison of the respective image sections and a control signal derived from the derived variable, and outputs the control signal to a focusing device of the projector.. .
|Modular stylus device|
Modular styluses having a base module an expansion module are disclosed. The base module can include a stylus tip, a stylus stimulation signal circuit capable of generating a stimulation signal, a processor for controlling the stylus stimulation signal circuit, and a connection interface for selectively connecting the base module to an expansion module.
|Projector device and method for controlling a projection screen|
In a method for controlling a projection screen using a projector device, the method builds a datasheet comprising a relationship between a mouse icon and a mouse operation, and triggers a camera to capture an image of the projection screen comprising a user interface projected from the electronic device onto the projection screen, and obtains the image of the projection screen from the camera. The image of the projection screen is used to obtain a position of the mouse icon in the image of the projection screen, and a mouse operation corresponding to the mouse icon is queried.
|Method, system and apparatus for determining locations in a projected image|
A method, system and apparatus for determining locations in a projected image are provided. The apparatus comprises a light sensor; a body comprising the light sensor, the body enabled to position the light sensor proximal to a screen to detect light from a projector; a communication interface for communicating with a projector system comprising at least the projector; and, a processor enabled to transmit a request to the projector system to project a structured light pattern using the projector; and when at least one pixel in the structured light pattern projected by the projector is detected at the light sensor, transmit a detection indication to the projector system to communicate detection of the at least one pixel..
|Object detection system|
In a projector or an optical receiver, a master device produces pieces of definition information that determines timings of detection processes in the device including its own device and transmits the pieces of definition information to the slave device. The master device simultaneously transmits commands to require operations of internal timers to be synchronized with each other to the other slave devices in response to elapse of a time corresponding to a period in which a circulating period of the detection processes of the sensors proceeds by a predetermined cycle.