|| List of recent Modulation-related patents
|Pwm dimming control method and control circuit and led driver therefor|
In one embodiment, a pulse-width modulation (pwm) dimming control method for a light-emitting diode (led) load, can include: (i) receiving a pwm dimming signal and a clock signal in a control circuit, where the clock signal is used to determine an effective width of the pwm dimming signal; (ii) setting a minimum value of the effective width of the pwm dimming signal; (iii) using the pwm dimming signal as a dimming control signal when the effective width of the pwm dimming signal is greater than the minimum value; (iv) regulating the effective width of the pwm dimming signal as the minimum value, and using the regulated pwm dimming signal as the dimming control signal, when the effective width of the pwm dimming signal is less than the minimum value; and (v) controlling a driving current of the led load according to the dimming control signal.. .
Silergy Semiconductor Technology (hangzhou) Ltd
|Techniques for configuring uplink channels in unlicensed radio frequency spectrum bands|
Techniques are described for wireless communication. An orthogonal frequency-division multiple access (ofdma) configuration of an uplink channel is identified for communications in an unlicensed radio frequency spectrum band.
|Dmrs processing method and apparatus|
A demodulation reference signal (dmrs) processing method and apparatus are provided, in which a base station side configures beforehand for a terminal side one or more sequence identifiers and/or bandwidth information needed to generate a dmrs sequence, through user equipment (ue)-specific higher-layer signaling, and then the base station side indicates to the terminal side specific sequence identifier and/or bandwidth information employed to send the dmrs sequence by utilizing at least one of the following indication methods: 1. Using a bit in downlink control indication signaling for indication; 2.
|Power supply adjustment and polar modulatlion in a mimo system|
Aspects of a method and system for power supply adjustment and polar modulation in a mimo system are provided. In each rf transmit chain of a mimo system that utilizes polar modulation, aspects of the invention may enable generating a signal representative of an amplitude of a pair of phase-quadrature baseband signals; and controlling a voltage and/or current regulator utilizing said generated signal.
|Multi-media multi-modulation and multi-data rate mesh network|
A node having a multiple protocol receiver may listen to multiple links in parallel and determine a quality of links having multiple communication technologies between the node and multiple neighbor nodes. The multiple communication technologies may include radio frequency (rf) communication technologies and one or more power line communication (plc) communication technologies.
|Systems and methods for securing near field communications|
Systems and methods to secure near field communications (nfc) are disclosed. An nfc polling device may detect a change in voltage when attempting to communicate with another nfc device and based at least in part on the magnitude of the change in voltage if there is an attempted hacking and/or snooping event.
|Systems and methods for spatially controlled scene illumination|
A scene illumination system is provided that produces spatially uniform or controlled brightness levels for machine vision applications. The system includes a camera, multiple light sources that preferentially illuminate different regions within the camera's field-of-view, and a processing unit coupled to the camera and light sources.
|Method for generating symbols for the automatic gain control of a signal to be transmitted|
A method for generating a set of symbols, called agc symbols, for the automatic control of the amplitude of a signal to be transmitted, the signal comprising the set of agc symbols and at least one first information symbol modulated with a linear modulation, comprises the following steps: recovering at least one modulated information symbol adjacent to said agc symbols in the signal; and determining each agc symbol of the set as a function of at least the modulated information symbol.. .
|Method of wireless communication with a multi-antenna receiver|
A method of transmitting data between a transmitter furnished with m>=1 transmission antenna(s) and a receiver furnished with n>=2 reception antennas, in which said data are coded using an ofdm/oqam modulation having l>=1 subcarriers. The method combines a specific coding/decoding with a precoding by time reversal, which can be used in high speed radio communications..
|Radio frequency circuit for intra-band and inter-band carrier aggregation|
A radio frequency (rf) circuit for intra-band and inter-band carrier aggregation includes a receive path configured to receive an input signal. The rf circuit includes a low noise amplifier which has multiple separate input stages and multiple separate output stages.
Method, system and audio communication modulation mode self-adaptation and electronic signature token
A method, system, and apparatus for audio communication modulation mode self-adaptation and an electronic signature token are provided. The method includes modulating first audio data using at least two modulation modes supported by the first device to generate first audio data frame streams; selecting an optimal modulation mode used in the second device from the modulation modes correctly received by the second device and supported by the first device according to a predetermined rule; demodulating the second audio data stream to obtain modulation modes correctly received by the first device and supported by the second device and the optimal modulation mode used in the second device; and selecting an optimal modulation mode used in the first device from the modulation modes correctly received by the first device and supported by the second device according to the predetermined rule..
A receiver (200) for receiving for receiving encoded data transmitted simultaneously as a plurality of m different sequences of transmitted symbols from different transmit antennas using a plurality of m modulation levels, where m and m are integers and each of the transmitted symbols represents a plurality of bits of the encoded data, comprises a demodulator (210) arranged to provide n received symbol combinations by receiving at a plurality of n receive antennas (202, 204), where n is an integer, the plurality of m different sequences of transmitted symbols, wherein each received symbol combination comprises m simultaneously received ones of the transmitted symbols. An equaliser (230) is arranged to generate from the n received symbol combinations m pre-processed signals by performing interference cancellation, in which interference cancellation a different symbol of the respective received symbol combination is a wanted signal and the other symbols of the respective received symbol combination are interfering signals.
Ericsson Modems Sa
Method for receiving or transmitting downlink signal in wireless communication system and device therefor
One embodiment of the present invention discloses a method for receiving a downlink signal in a wireless communication system that supports coordinated multiple-point transmission and reception (comp), and the method comprises the steps of: receiving downlink control information that contains a plurality of resource allocation parts from a base station; and acquiring information on whether it can be assumed that an antenna port(s) of a particular reference signal and an antenna port (s) of a demodulation reference signal associated with each of the plurality of resource allocation parts are quasi co-located (qcl).. .
Lg Electronics Inc.
Multi-carrier method in a measurement device
The invention relates to a multi-carrier method in a measurement device for improving reach of a measurement, said method comprising: transmitting a first signal in a sequence, measuring a response to said first signal, calculating a first transfer function for frequency of each modulated subcarrier in the first signal, transmitting a second signal of the sequence, wherein at least one subcarrier in the second signal has modulation different from that of the subcarriers in the first signal, measuring a response to said second signal, calculating a second transfer function for frequency of each modulated subcarrier in the second signal, said second transfer function comprising for each frequency a thereto associated second distortion component, calculating a mean value of all first and second transfer functions. The invention further relates to a measurement device for performing said method..
Telefonaktiebolaget L M Ericsson (publ)
Self-calibrating shared-component dual synthesizer
A self-calibrating shared-component dual synthesizer includes, for example, two frequency synthesizers that are adapted to operate (respectively) in transmit (tx) and receive (rx) modes. Each synthesizer can be selectively arranged to vary and optimize the phase noise in accordance with the tx and rx requirements associated with each mode as well as independently optimized for flexible low area floorplan to achieve low power, spectral fidelity and reduced test time, low cost built in self-calibration.
Texas Instruments Incorporated
Relay device, satellite relay device, and satellite relay method
A relay device includes first demultiplexing units that demultiplex reception signals into demultiplexed signals in a narrower band, first and second multiplexing units that multiplex input signals to generate multiplexed signals, transmission antennas that transmit the multiplexed signals generated by the multiplexing units, a regenerative relay unit that modulates an information sequence obtained by carrying out demodulation processing to the multiplexed signal generated by the second multiplexing unit to generate a modulated signal, a second demultiplexing unit that demultiplexes the modulated signal into a demultiplexed signal in a band narrower than the band of the reception signal, and a switch unit that inputs the demultiplexed signals demultiplexed by the first demultiplexing units to the multiplexing units and inputs the demultiplexed signal demultiplexed by the second demultiplexing unit to the first multiplexing units.. .
Mitsubishi Electric Corporation
System and wireless broadband communication in a marine environment
The current invention is a system and method for facilitating high-quality broadband wireless communication in a mobile environment. The present invention also offers significantly improved performance over currently available land-based systems, as high bit rate data connectivity is made possible over long distances by utilizing multiple frequencies, antennas, polarizations, modulations, and radios to optimize propagation and accomplish the delivery of synchronous and asynchronous data connections to a seagoing vessel (or other such user, such as a plane or vehicle)..
High-frequency signal processor and wireless communication system
There is a need to reduce secondary intermodulation distortion that may occur in a reception circuit of a high-frequency signal processor and a wireless communication system having the same. In test mode, for example, a test signal generating circuit tsgen generates a test signal rftst at f_tx±0.5 mhz.
Renesas Electronics Corporation
Converter arrangement and converting an analogue input signal into a digital output signal
The invention relates to an arrangement and a method for the identification of parameters in a nonlinear model of an analog-to-digital converter (adc 17) and the use of this information to reduce the nonlinear distortions of the adc. A parameter estimator determines an ad parameter vector pad which describes the nonlinearities of the adc (17).
Motor control circuit and method
In accordance with an embodiment, a drive circuit is provided for driving for a motor wherein the drive circuit includes a rotational state generation circuit connected to a state controller. The state controller is connected to a pulse width modulation detection circuit, a timer, and a duty control controller.
Semiconductor Components Industries, Llc
Motor control circuit and method
In accordance with an embodiment, a method for driving a motor includes decreasing a duty of an input signal to a motor and decreasing a duty of a duty control signal in response to decreasing the duty of the input signal the duty of the duty control signal is maintained at a first level in response to a reverse current signal and decreased from the first level in the absence of the reverse current signal. In accordance with another embodiment a driver circuit includes a state controller having an input coupled to a pulse width modulation detection circuit and an output connected to a reverse current detection circuit..
Semiconductor Components Industries, Llc
A motor controller includes a variable controller, a current controller and an electric power module. The variable controller is configured to receive a torque command, a position of a rotor of a motor, and a motor rotation speed, change a first axis current command and a second axis current command according to variation of the position of the rotor of the motor, and output the first axis current command and the second axis current command.
Kia Motors Corporation
Motor control circuit and method
In accordance with an embodiment, a stopping circuit includes a detection circuit connected to a subtraction amount determination circuit. A subtraction circuit is connected to the subtraction circuit and the subtraction circuit is coupled for receiving an output signal from the subtraction amount determination circuit.
Semiconductor Components Industries, Llc
Cascaded h-bridge (chb) inverter level shift pwm with rotation
Cascade h-bridge inverters and carrier-based level shift pulse width modulation techniques are presented for generating inverter stage switching control signals, in which carrier waveform levels are selectively shifted to control thd and to mitigate power distribution imbalances within multilevel inverter elements using either complementary carrier or complementary reference modulation techniques.. .
Rockwell Automation Technologies, Inc.
System and method providing over current protection based on duty cycle information for power converter
System and method for protecting a power converter. An example system controller for protecting a power converter includes a signal generator, a comparator, and a modulation and drive component.
On-bright Electronics (shanghai) Co., Ltd.
Optical disc medium and optical disc device
An optical disc medium includes a land and a groove at which information can be recorded. A predetermined number of address information units which record address information of the land or groove are provided in a circumferential direction of the optical disc medium.
Panasonic Intellectual Property Management Co., Ltd.
Display device with integrated touch screen and driving method thereof
A display device with integrated touch screen is provided. The display device includes a panel configured to include a plurality of driving electrodes and a plurality of sensing electrodes and a display driver ic configured to apply a common voltage to the plurality of driving electrodes and the plurality of sensing electrodes when the panel operates in a display driving mode, and when the panel operates in a touch driving mode, generate a pulse-modulated driving pulse according to a timing pulse and a pulse modulation control signal to apply the pulse-modulated driving pulse to the plurality of driving electrodes, and respectively receive a plurality of sensing signals from the plurality of sensing electrodes..
Lg Display Co., Ltd.
Display driving method
An electrowetting display device has at least one display element. The method of driving the display device comprises receiving data representing a display effect for display by the element.
Amazon Technologies, Inc.
Modulation guided phase unwrapping
A method for determining a phase for a captured image, the method comprising forming a demodulated image defining wrapped phase values and modulation values, each being associated with at least one region in the captured image; identifying a position of an edge in the captured image dependent upon the modulation values; determining a position of substantial change in the wrapped phase values in the captured image dependent upon the identified position of the edge, and determining at least one unwrapped phase value based on the position of the edge and the position of the substantial change in the wrapped phase values by shifting a position of the substantial change in the wrapped phase values to the identified position of the edge, so that said unwrapped phase value is adjusted by at least one cycle. .
Canon Kabushiki Kaisha
Electric product and updating firmware of the same
An electric product to communicate with a terminal includes: a wireless communication unit equipped in the electric product; a firmware storage unit storing a firmware file for update received from the terminal; a firmware modulation and confirmation unit determining whether the firmware file for update received from the terminal is error free; and a firmware update execution unit executing an update of firmware received from the terminal, wherein while the electric product is registered to the terminal, the electric product receives the firmware file for update from the terminal.. .
Lg Electronics Inc.
Device and identifying a laser pointer
A device is provided for identifying at least one laser pointer, including a laser projector having a scanning mirror device by which a projection surface is able to be scanned periodically; a modulation device for a laser beam of the at least one laser pointer; and a detection device, situated within the laser projector, for detecting the modulated laser beam of the at least one laser pointer.. .
Robert Bosch Gmbh
Apparatus for copying a hologram
A holographic recording apparatus having a source of illumination, a master hologram containing at least one hologram lamina overlaying, a copy substrate containing a holographic recording medium, and a voltage generator for applied a voltage across at least one of the master hologram and the copy substrate. The master hologram diffracts the illumination light into zero order light and diffracted light which interfere in the copy substrate to form a copy of the master hologram.
A projector can prevent a flicker from being caused by rotation of a rotating phosphor plate. The projector includes a solid-state light source that emits excitation light, a rotating phosphor plate that converts the excitation light into phosphor light, a liquid-crystal light modulating device that modulates the light from the rotating phosphor plate, a projection optical system that projects the modulated light onto a screen, and a control device that controls the solid-state light source and the rotating phosphor plate so as to satisfy any one of a conditional expression a=b, a conditional expression a=2b, and a conditional expression .
Electro-optical single crystal element, the preparation thereof, and systems employing the same
The present invention relates to an electro-optical (e-o) crystal elements, their applications and the processes for the preparation thereof. More specifically, the present invention relates to the e-o crystal elements (which can be made from doped or un-doped pmn-pt, pin-pmn-pt or pzn-pt ferroelectric crystals) showing super-high linear e-o coefficient yc, e.g., transverse effective linear e-o coefficient ytc more than 1100 pm/v and longitudinal effective linear e-o coefficient ylc up to 527 pm/v, which results in a very low half-wavelength voltage vtx below 200v and vtx below about 87v in a wide number of modulation, communication, laser, and industrial uses..
Photo-stimulator and microscope system
To avoid unstable light radiation during switching of a phase modulation amount and stimulate desired stimulation points simultaneously, provided is a photo-stimulator which includes an aom switching on/off of radiation of stimulation light to a specimen s; an lcos-slm being capable of modulating a phase of stimulation light once radiation to the specimen s has been turned on by the aom; and a controller controlling the lcos-slm to switch a phase modulation amount of stimulation light and controlling the aom to switch on/off of radiation of stimulation light, wherein the controller causes the aom to turn off radiation of stimulation light before the lcos-slm starts switching a phase modulation amount, and causes the aom to turn on radiation of stimulation light after the lcos-slm completes switching a phase modulation amount.. .
Receiver, operating the receiver, and beamforming radar system including receiver
A receiver, an operating method of the receiver, and a beamforming radar system including the receiver are provided. A beamforming receiver may include a demodulation circuit configured to receive a signal reflected from an object via an antenna, to demodulate the received signal, and to generate a demodulated signal, and a time delay circuit configured to generate a digital signal by processing the demodulated signal based on reference clock signals, wherein the digital signal including static delay information associated with a static motion of the object, and dynamic delay information associated with a dynamic motion of the object..
Samsung Electronics Co., Ltd.
Method of controlling parking control device of transmission
A method of controlling a parking control device of a transmission may include a) inputting data about a state of a vehicle, b) determining, based on the data input at a step of the a), whether a current situation is a first situation in which an actuator of the parking control device of the transmission is to be promptly controlled, a second situation in which noise is controlled to be minimized, or a third situation which is a normal situation, and c) controlling a pulse width modulation (pwm) duty cycle required to control the actuator to different values depending on the first, second, and situations determined at a step of the b), thus driving the actuator.. .
Kia Motors Corp.
Modulation of enhancer rna mediated gene expression
Disclosed herein are methods and compounds for inhibiting gene expression by inhibiting enhancer rnas (ernas). Such methods and compounds are useful for reducing expression of certain genes, many of which are associated with a variety of diseases and disorders..
Isis Pharmaceuticals, Inc.
Controlled modulation of amino acid side chain length of peptide antigens
The invention provides a method for the creation of peptide antigens comprising epitopes with at least a first modification comprising a shortened or lengthened amino acid side chain. By extension or shortening of the side chain with ch3/ch2 groups, for example, made by computer assisted modeling of the tumor antigen (peptide) bound in the mhc-i-groove, immunogenicity can be improved with minimal modification of adjacent tertiary structure, thereby avoiding cross-reactivity.
Henry M. Jackson Foundation For The Advancement Of Military Medicine, Inc.
Substituted morphinans and the use thereof
And pharmaceutically acceptable salts and solvates thereof, wherein r1, r2, r3, r4a, and r4b are defined as set forth in the specification. The invention is also directed to use of compounds of formula i to treat disorders responsive to the modulation of one or more opioid receptors, or as synthetic intermediates.
Benzenesulfonamide compounds suitable for treating disorders that respond to modulation of the dopamine d3 receptor
The invention relates to compounds of the formula r1 is selected from the group consisting of hydrogen, linear c1-c3 alkyl and fluorinated linear c1-c3 alkyl; r2 is hydrogen or methyl; r3 is selected from the group consisting of hydrogen, halogen, c1-c2-alkyl, fluorinated c1-c2-alkyl, c1-c2-alkoxy and fluorinated c1-c2-alkoxy, r4 is c1-c2-alkyl or fluorinated c1-c2-alkyl; n is 0, 1 or 2, and the physiologically tolerated salts of these compounds and the n-oxides thereof. The invention also relates to a pharmaceutical composition that comprises at least one compound of the formula i and/or at least one physiologically tolerated acid addition salt thereof, and further to a method for treating disorders that respond beneficially to dopamine d3 receptor antagonists or dopamine d3 agonists, said method comprising administering an effective amount of at least one compound or physiologically tolerated acid addition salt of the formula i to a subject in need thereof..
Abbvie Deutschland Gmbh & Co. Kg
Pyridazine compounds, compositions and methods
The invention relates to novel chemical compounds, compositions and methods of making and using the same. In particular, the invention provides pyridazine compounds and/or related heterocyclic derivatives, compositions comprising the same, and methods of making and using pyridazine compounds and/or related heterocyclic derivatives and compositions comprising the same, for modulation of cellular pathways (e.g., signal transduction pathways), for treatment or prevention of inflammatory diseases (e.g., alzheimer's disease), for research, drug screening, and therapeutic applications..
Centre National De La Recherche Scientifique (cnrs)
Alpha-7 nicotinic acetylcholine receptor modulators and uses therof-i
The present invention relates to chemical compounds of formula (i), with the substituents as described in the specification, useful in the positive modulation of the alpha 7 nicotinic acetylcholine receptor (α7 nachr). The invention also relates to the use of these compounds in the treatment or prevention of a broad range of diseases in which the positive modulation of α7 nachr is advantageous, including neurodegenerative and neuropsychiatric diseases and also neuropathic pain and inflammatory diseases..
Merck Sharp & Dohme Corp.
Device and methods for noninvasive neuromodulation using targeted transcranial electrical stimulation
A system for transcranial electrical stimulation comprises a processor having instructions of a computer model that can be adjusted to the head subject in response to one or more input parameters. The adjustable model may comprise a plurality of structures that can be adjusted to the head of the subject in response to parameters that can be readily measured, such as head size and head shape.
Modulation of immunity and ceacam1 activity
The present technology comprises methods for regulating an the immune system, and in particular methods for the regulation of a specific immune response, including the regulation of lymphocyte activity. Methods of the present technology comprise both the negative and positive modulation of ceacam1 protein function..
Amine-containing transfection reagents and methods for making and using same
There are provided for herein novel amine-containing transfection compounds and methods for making and using same. The compounds are generally obtained by reacting a primary amine with an unsaturated compound.
Life Technologies Corporation
Treatment structure and methods of use
Catheter based ablation devices, systems, and methods for achieving intraluminal and/or transluminal neuromodulation, stimulation or ablation by intraluminal access are disclosed herein. One aspect of the present application, for example, is directed to devices, systems, and methods that incorporate a spiral support frame treatment device on an elongate shaft or as a temporary or permanently implanted therapy device.
Optimized finger assignment for improved multicarrier throughput
Systems and methodologies are described that facilitate dynamically allocating demodulation resources of a wideband receiver to provide improved demodulation of simultaneously received signals. Signal-to-noise ratio (snr) and/or packet error rate (per) can be measured for the plurality of carriers to determine which demodulators related to the carriers require more resources than others to demodulate signals at a specified signal quality.
Method and communication with coordination of modulation schemes among base stations for improved interference cancellation
A method, apparatus and computer program product are provided to suppress interference, such as interference attributable to increased network density, interference attributable to interference between uplink and downlink transmissions in a tdd system and/or interference attributable to d2d communications. In the context of a method, it is determined whether communication between an access point and a mobile terminal or between a mobile terminal and another mobile terminal is to be subjected to real-valued modulation or complex-valued modulation such that the modulation and a dominant form of interference for the mobile terminal are either both real-valued or both complex-valued.
Method and transmitting control information in wireless communication system
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method for transmitting control signal via a pucch in a wireless communication system, and to an apparatus for the method, wherein the method comprises the following steps: joint-coding a plurality of pieces of control information to obtain a single codeword; obtaining a first modulation symbol sequence from the single codeword; obtaining, from the first modulation symbol sequence, a plurality of second modulation symbol sequences corresponding to each slot in the pucch; cyclically shifting the plurality of second modulation symbol sequences in a time domain to obtain a plurality of third modulation symbol sequences; performing a discrete fourier transform (dft) precoding process on the plurality of third modulation symbol sequences to obtain a plurality of complex symbol sequences in a frequency domain; and transmitting the plurality of complex symbol sequences via the pucch..
Lg Electronics Inc.
Method and device for reporting channel state information in wireless communication system
An embodiment of the present invention relates to a method of reporting channel state information (csi) of a terminal in which a plurality of csi-reference resource (rs) configurations is set and includes: receiving information for quasi co-located assumption; measuring a channel state by using the csi-rs; inducing a modulation and coding scheme (mcs) based on the measured result and the information for the qc assumption; and reporting the csi including a cqi index associated with the mcs, wherein if there is a physical cell id corresponding to the csi-rs in the information for the qc assumption, the msc is a value capable of receiving data below a certain error rate if the data, under the assumption of a cell-specific rs (crs) transmitted from a cell of the physical cell id and the qc, is received.. .
Lg Electronics Inc.
Method of data transmission in multiple antenna system
A method of data transmission includes determining the number of layers, generating mapping symbols by mapping modulation symbols for a first codeword and modulation symbols for a second codeword to each layer, and transmitting the mapping symbols through a plurality of antennas. At least one of the first codeword and the second codeword is mapped to at least 3 layers and the number of layers is larger than 3..
Lg Electronics Inc.