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Modulation patents

      

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




 Optimized mcs selection for machine type communication patent thumbnailnew patent Optimized mcs selection for machine type communication
Systems and methods are disclosed herein for reducing power consumption and/or decreasing latency for a wireless device in a wireless communications system. In particular, the systems and methods disclosed herein are particularly beneficial for machine type communication (mtc) devices, but are not limited thereto.
Telefonaktiebolaget L M Ericsson (publ)


 Method and  removing interference and receiving signal in wireless communication system patent thumbnailnew patent Method and removing interference and receiving signal in wireless communication system
The present invention relates to a wireless communication system. A method for receiving a signal using a network assisted interference cancellation by a terminal in a wireless communication system comprises the steps of: receiving pa information corresponding to a ratio of an energy per resource element (epre) of a physical downlink control channel (pdsch) to an epre of a common reference signal (crs), wherein the pa information comprises first pa information and second pa information which are distinguished according to a modulation order; and removing interference of an adjacent cell using the first pa information or the second pa information corresponding to the modulation order of the signal and receiving a signal..
Lg Electronics Inc.


 Channel decoding method and apparatus, and distributed decoder patent thumbnailnew patent Channel decoding method and apparatus, and distributed decoder
Embodiments disclose a channel decoding method and apparatus, and a distributed decoder. A channel decoding apparatus includes: a decoding information acquiring unit, configured to acquire demodulation information of a channel; a channel decoding algorithm unit, configured to decode the demodulation information to obtain current decoding information, and perform a cyclic redundancy check crc check on the current decoding information to obtain a current decoding crc check result; and a lower level decoding determining unit, configured to: if the current decoding crc check result is incorrect and a lower level channel decoding apparatus exists, determine that the lower level channel decoding apparatus continues to decode the demodulation information, where decoding performance of a channel decoding algorithm unit in the lower level channel decoding apparatus is superior to decoding performance of the channel decoding algorithm unit in the channel decoding apparatus..
Huawei Technologies Co., Ltd.


 Terminal and  audio data transmission patent thumbnailnew patent Terminal and audio data transmission
Aspects of the disclosure provide a terminal adapted to transmit audio data via bluetooth to a device. The terminal includes a controller adapted to detect configuration parameters of the device and optimally determine configuration parameters of the terminal, and a transmission module capable of transmitting a packet of a first packet type based on a first mode of the terminal and a packet of a second packet type based on a second mode of the terminal.
Sony Mobile Communications Inc.


 Adaptive quantization parameter modulation for eye sensitive areas patent thumbnailnew patent Adaptive quantization parameter modulation for eye sensitive areas
Methods and systems provide an adaptive quantization parameter (qp) modulation scheme for video coding and compression that is sensitive to user visual perception. In an embodiment, the method includes detecting an eye sensitive region, where a region is considered sensitive based on a noticeability of a visual effect.
Apple Inc.


 Smartphone proximity card emulation patent thumbnailnew patent Smartphone proximity card emulation
Methods, systems, and computer program products are provided that enable a portable computing device to emulate a proximity card. A portable computing device is provided that includes an antenna, storage that stores an identification number, and a processor.
Microsoft Technology Licensing, Llc


 Method for controlling access to a service patent thumbnailnew patent Method for controlling access to a service
The invention relates to a method for controlling the access to an on-line service, the access to the service being requested, via a communications network, by a terminal designed to receive data broadcast by a data transmission device using modulation of visible light producing a light beam, the method being characterized in that it comprises steps for generation of a token for accessing the service, for sending a command for broadcasting the token for accessing the service by the data transmission device using modulation of visible light, and when the terminal is in range of the light beam, for receiving, via the communications network, a request for accessing the service comprising a token for accessing the service originating from the terminal, for verifying the validity of the access token, and for access authorization when the token is valid. In a correlated manner, the invention relates to a method for accessing a service and devices, servers and terminals implementing these methods..
Orange


 Reliable dual sub-carrier modulation schemes in high efficiency wlan patent thumbnailnew patent Reliable dual sub-carrier modulation schemes in high efficiency wlan
modulation schemes that use dual sub-carrier to reliably transmit physical layer related signaling information and/or data in high efficiency wireless local area network (he wlan) are proposed. The proposed schemes can be implemented with low complexity and provide better performance than existing modulation schemes used in wlan that are based on ieee 802.11/a/b/g/n/ac standards.
Mediatek Inc.


 Blind phase-shift keying (psk) and quadrature amplitude modulation (qam) identification patent thumbnailnew patent Blind phase-shift keying (psk) and quadrature amplitude modulation (qam) identification
Technology for blind phase-shift keying (psk) and quadrature amplitude modulation (qam) identification of a received radio frequency (rf) signal is disclosed. One method can include: uniform sub-sampling the received rf signal to eliminate a phase contribution from a carrier frequency of the received rf signal; and computing a likelihood function of observed phase differences of the sub-sampled received rf signal of a phase sequence for each psk modulation type.
University Of Utah Research Foundation


 Wireless communication system, wireless communication device, and wireless communication method patent thumbnailnew patent Wireless communication system, wireless communication device, and wireless communication method
In order to prevent a receiving wireless communication device from growing to great size when the variable modulation is used in a multipath-fading channel, a wireless communication system according to an exemplary aspect of the present invention includes: a first wireless communication device; and a second wireless communication device, the first wireless communication device including time-division multiplexing means for time-division multiplexing a first modulated signal and a second modulated signal, and transmission means for transmitting a time-division multiplexed signal, the second wireless communication device including time-division demultiplexing means for time-division demultiplexing the time-division multiplexed signal into a first demodulated signal and a second demodulated signal, a first adaptive filter for the first demodulated signal, a second adaptive filter for the second demodulated signal, adaptive control means for performing an adaptive control on the first adaptive filter and outputting an output of the adaptive control to the second adaptive filter, first demodulation means for demodulating an output of the first adaptive filter, second demodulation means for demodulating an output of the second adaptive filter.. .
Nec Corporation


new patent

Apparatus and methods for quantum key distribution

Systems, apparatus, and methods using an integrated photonic chip capable of operating at rates higher than a gigahertz for quantum key distribution are disclosed. The system includes two identical transmitter chips and one receiver chip.

new patent

Receiver and signal processing method thereof

Provided is a receiver which includes at least one processor configured to control or execute: a first bit-interleaved coded modulation (bicm) decoder configured to generate a first output signal corresponding to an upper layer signal by processing a first input signal which includes a superposition coding signal generated at a transmitter by superimposing the upper layer signal and a lower layer signal; a parity generator configured to generate at least one parity based on a result of the processing of the first input signal by the first bicm decoder; and a second bicm decoder configured to generate a second output signal corresponding to the lower layer signal by processing a second input signal which is generated using the parity generated by the parity generator.. .
Samsung Electronics Co., Ltd.

new patent

Apparatus and link adaptation in uplink grant-less random access

Embodiments are provided for a scheme of link adaptation (la) in uplink grant-less random access (ra) communications. The scheme includes changing a modulation and coding (mcs) of a user, instead of using a fixed mcs over time, as the user link, channel, or non-link conditions vary during the ra communications.
Huawei Technologies Co., Ltd.

new patent

Data transmission method

Described are, among other things, a method and a receiver for receiving a management data signal in an optical transmission system where a traffic data signal is transmitted as a nrz modulated signal. The traffic data signal has a management data signal superimposed thereon as a pulse width modulation of the symbols of the nrz modulated signal.
Transmode Systems Ab

new patent

Modulation device and lighting device

A modulation device includes: a modulation id signal generator that generates a first id signal including first identification information; a reception terminal capable of receiving a second id signal including second identification information; a transmission terminal capable of transmitting the first id signal and the second id signal out of the modulation device; a detector that detects a received state in which the second id signal is received by the reception terminal and an unreceived state in which the second id signal is not received by the reception terminal; and a switch circuit that outputs the first id signal to the transmission terminal when the detector detects the unreceived state and outputs the second id signal to the transmission terminal when the detector detects the received state.. .
Panasonic Intellectual Property Management Co., Ltd.

new patent

Constrained interleaving for 5g wireless and optical transport networks

The present invention provides a design framework that is used to develop new types of constrained turbo block convolutional (ctbc) codes that have higher performance than was previously attainable. The design framework is applied to design both random and deterministic constrained interleavers.

new patent

Multi-stage isolation sub-system for a remote antenna unit

Certain features relate to a remote antenna unit having a multi-stage isolation sub-system for isolating uplink and downlink signal paths. A multi-stage isolation sub-system in the remote antenna unit can include a first stage device that is configured to generate a cancellation signal for canceling unwanted downlink signals received at the uplink antenna.
Commscope Technologies Llc

new patent

Method and device for transmitting signal in wireless communication system

In an embodiment of the present invention, a method for transmitting a signal by a transmission point in a wireless communication system comprises the steps of generating complex modulation symbols for a terminal which is in a partially connected interference channel state; applying symbol extension to each of the complex modulation symbols, using a pre-coding matrix; and mapping the extended complex modulation symbols to resource elements, wherein the symbol extension is performed by multiplying an element of one column of the pre-coding matrix by each of the complex modulation symbols.. .
L G Electronics Inc.

new patent

Cancellation of spurious intermodulation products produced in nonlinear channels by frequency hopped signals and spurious signals

A method and apparatus for intermodulation product (imp) cancellation. In one embodiment, the method comprises: acquiring copies of source signals that create imps in a passband of interest; creating copies of the imps for use as imp cancellation signals by either multiplying the source signals together as a series of digital samples such that the multiplied signals create a near real and continuous time copy of the imps or creating a sum of the source signals in near real and continuous time and convolving the sum of the source signals with a mathematical model to effectively multiply the signals together to create a copy of the imps; adjusting one or both of phase and amplitude of the copies; and using the copies to cancel the imps inband of the passband of interest..

new patent

Physical layer frame format for wlan

A first field of a preamble of a physical layer (phy) data unit is generated to include a first set of one or more information bits that indicate a duration of the data unit and is formatted to conform to a first communication protocol and such that the first field allows a receiver device that conforms to a second communication protocol to determine the duration of the data unit. A second field of a preamble of the phy data unit is generated to include a second set of one or more information bits that indicate to a receiver device that conforms to the first communication protocol that the data unit conforms to the first communication protocol.
Marvell World Trade Ltd.

new patent

Constrained interleaving for 5g wireless and optical transport networks

The present invention provides a design framework that is used to develop new types of constrained turbo block convolutional (ctbc) codes that have higher performance than was previously attainable. The design framework is applied to design both random and deterministic constrained interleavers.

new patent

Constrained interleaving for 5g wireless and optical transport networks

The present invention provides a design framework that is used to develop new types of constrained turbo block convolutional (ctbc) codes that have higher performance than was previously attainable. The design framework is applied to design both random and deterministic constrained interleavers.

new patent

Driving circuit for driving a capacitive load

Provided is a driving circuit for driving a capacitive load which includes a modulation circuit which generates a modulation signal which is obtained by pulse-modulating a source signal, a transistor which generates an amplified modulation signal by amplifying the modulation signal, a low pass filter which generates a drive signal by smoothening the amplified modulation signal, a piezoelectric element which is displaced by receiving the drive signal, and a circuit substrate on which the transistor is mounted. The transistor includes a first electrode, a second electrode, a third electrode, and a clip which has conductivity, is electrically connected to the first electrode.
Seiko Epson Corporation

new patent

Digital pulse width modulation control for load switch circuits

Example implementations relate to controlling a field-effect transistor (fet) switch in a load switch circuit. A digital pulse width modulated (pwm) voltage signal may be applied to a gate of a fet switch.
Hewlett-packard Development Company, L.p.

new patent

Low-power high-swing pam4/pam8 fast driver

A driver for performing efficient low-power high-swing modulation, which comprises a first plurality of n controllable switching elements and introducing low impedance between the contacts in response to a low control level and vice versa; a second plurality of n controllable switching elements and introducing high impedance between the contacts in response to a low control level and vice versa; a dc power supply for feeding the driver, the positive port of which is connected to the common contact of the first plurality and the negative port of which is connected to the common contact of the second plurality; a plurality of n voltage dividers, each divider consisting of two serially connected resistors connecting between a free contact of a controllable switching element from the first plurality and a free contact of a controllable switching element from the second plurality, where each two controllable switching elements connected by a voltage divider forming a pair; a plurality of n control inputs, each of which jointly controlling the control inputs of a different pair; and a common output connecting between all n common points of all pairs of serially connected resistors forming the n voltage dividers.. .
Multiphy Ltd.

new patent

System of controlling induction electric motor

In some embodiments, a system of controlling an induction electric motor, includes a command voltage output unit for generating a command voltage for operating an inverter according to a command speed and outputting the generated command voltage to the inverter; a control unit for controlling the command voltage output unit such that the command voltage output to the inverter is compared with an operation limiting voltage and the command voltage is corrected to fall within the operation limiting voltage; and the inverter for controlling the induction electric motor depending on the corrected command voltage. Thus, it is possible to precisely control the induction electric motor even in a high speed operation region by regulating the magnitude of the command voltage applied to the induction electric motor by means of dynamic modulation strategies without the magnetic flux controller..
Lsis Co., Ltd.

new patent

Electric power convertion apparatus and operating the same

Some embodiments include an electric power conversion apparatus, which may include a transformer, a first converter connected to a primary side of the transformer, a second converter connected to a secondary side of the transformer, a first capacitor connected to the first converter, a second capacitor connected to the second converter, and a control unit for controlling the first converter and the second converter, wherein the control unit may determine operation ranges with respect to a plurality of modulation methods, may determine a modulation method including an output electric power value of the electric power conversion apparatus among the operation ranges of the plurality of modulation methods, and may output control signals of the first converter and the second converter based on the determined modulation method, wherein the control signals correspond to an instruction value.. .
Lsis Co., Ltd.

new patent

Control circuit for buck-boost power converter with seamless mode transition control

A buck-boost power converter and a control circuit for the buck-boost converter. The control circuit includes a buck cycle pulse width modulation module and a boost cycle pulse width modulation module respectively having a first controllable hysteresis and a second controllable hysteresis.
Monolithic Power Systems, Inc.

new patent

Dynamic clock period modulation scheme for variable charge pump load currents

A charge pump is connected to receive a supply voltage and a clock signal and generate an output voltage. The charge pump is connected to the supply voltage through a transistor whose gate voltage is set by a regulation voltage determined by feedback from the output voltage.
Sandisk Technologies Inc.

new patent

Green power converter

A green power converter which omits the pulse width modulation (pwm) technique in the traditional power converter, does not have high-frequency power device, does not generate emi interference, simultaneously adopts the symmetry basic primitive (sbp) technique, the amplitude high modulate (ahm) technique and the dynamic rectification (dr) technique, and only needs to perform traditional power conversion on a small part of the input power so as to acquire the whole output power, namely that a large part of the output power neither need traditional power conversion nor need to pass through a magnetic core transformer. The input ac voltage neither needs to be rectified and filtered nor has large inductance and large capacitance, thus the power factor is 1, and the total harmonic distortion (thd) is 0.

new patent

Battery management unit and setting identifier by using frequency modulation

Disclosed is a battery management unit for setting a communication identifier through the frequency of a start signal. The battery management unit according to the present invention analyzes the frequency of a received start signal.
Lg Chem, Ltd.

new patent

Compounds having semiconducting properties and related compositions and devices

Disclosed are new compounds having semiconducting properties. Such compounds can be processed in solution-phase at a temperature of less than about 50° c.
Polyera Corporation

new patent

Positional encoder and control rod position indicator for nuclear reactor using same

A cam is immersed in water at an elevated temperature and/or pressure. A reciprocating cam follower also immersed in the water contacts a surface of the cam.
Bwxt Nuclear Operations Group, Inc.

new patent

Light modulation element

Provided is a light modulation element which is unlikely to cause photolysis or photodecomposition. Provided is a light modulation element formed of at least one or more transparent substrates and a dielectric layer stacked on at least one transparent substrate, in which the dielectric layer contains from 90 mol % to 100 mol % of an external field-reactive substance, and an energy level (t1) of a lowest triplet excited state of the external field-reactive substance is from 2.6 ev to 5.4 ev.
Dic Corporation

new patent

Control apparatus and control spatial light modulator

A control apparatus includes a lens, an slm presenting a modulation pattern on a modulation plane and outputting modulated light l2 for forming light spots p1 and p2 on a pupil plane of the lens, an imaging device imaging a fringe pattern image formed on a focal plane of the lens and generating image data da indicating the fringe pattern image, a calculation unit calculating at least one kind of parameter among an intensity amplitude, a phase shift amount, and an intensity average from the image data da, an analysis unit obtaining a deviation in relative positions of an optical axis of the lens and a reference coordinate of the modulation plane based on the parameter, and a changing unit changing an origin position of the reference coordinate so that the deviation in the relative positions is decreased.. .
Hamamatsu Photonics K.k.

new patent

Light guide plate assembly, side-type backlight source module and display device

A light guide plate assembly comprising: a first substrate which is transparent and positioned on a light-emitting side of the light guide plate assembly; a second substrate which is disposed opposite to the first substrate; and a plurality of light modulation units which are disposed between the first substrate and the second substrate, wherein each of the light modulation units comprises: a first electrode which is disposed adjacent to the first substrate; a second electrode which is disposed adjacent to the second substrate, wherein the first electrode and the second electrode are configured to generate an electric field therebetween; and an electrophoretic capsule layer which is positioned between the first electrode and the second electrode and comprises an electrophoretic capsule containing white electrophoretic particles and black electrophoretic particles which are dispersed in transparent dispersing medium and are oppositely charged.. .
Hefei Xinsheng Optoelectronics Technology Co., Ltd.

new patent

Reduction in camera to camera interference in depth measurements using spread spectrum

Reduction in interference between different time of flight (tof) cameras used for depth measurements and operating in the same application environment is achieved using a spread spectrum technique in which the cyclical operations of a pulsed light source such as a laser or light emitting diode (led) and gated image sensor are varied in a pseudo-random manner in each camera. In an alternative embodiment, spread spectrum logic is applied in a tof camera that employs phase modulation techniques..

new patent

Magnetic stimulus of isfet-based sensor to enable trimming and self-compensation of sensor measurement errors

An ion sensor apparatus comprises at least one ion sensitive field effect transistor (isfet) device configured to be exposed to a liquid, a reference electrode configured to contact the liquid to which the isfet device is exposed, and at least one magnet configured to intermittently expose the isfet device to a magnetic field. A processor is operatively connected to the isfet device and the reference electrode.
Honeywell International Inc.



Modulation topics:
  • Modulation
  • Duty Cycle
  • Reference Voltage
  • Comparator Circuit
  • Backlight Unit
  • Liquid Crystal Display
  • Liquid Crystal
  • Frequency Modulation
  • Intermodulation Distortion
  • Rf Switch Circuit
  • Frequency Detector
  • Holographic
  • Terrestrial
  • Ground Segment
  • Transponder


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    This listing is a sample listing of patent applications related to Modulation for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Modulation with additional patents listed. Browse our RSS directory or Search for other possible listings.


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