Interference Or Noise Reduction Patents (Class 375/346)
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Patent number: 12212526Abstract: The system monitors multiple communication channels between a first communicator and a second communicator. At least a portion of the multiple channels spatially overlap. The overlapping channels carry different communications. The system determines whether a first set of two or more channels among the multiple channels are interfering with each other. Upon detecting interference, the system obtains a first multiplicity of physical resource blocks associated with a first channel and a second multiplicity of physical resource blocks associated with a second channel, where a physical resource block comprises a frequency band of predetermined size. The system allocates a first subset of the first multiplicity of physical resource blocks to the first channel, and a second subset of the second multiplicity of physical resource blocks to the second channel, where the first subset and the second subset do not overlap.Type: GrantFiled: February 11, 2022Date of Patent: January 28, 2025Assignee: T-Mobile USA, Inc.Inventors: Jun Liu, Jeff Ahmet
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Patent number: 12177045Abstract: A method of equalization for high-speed processing and an equalizer thereof are proposed. The method of equalization includes determining a filter coefficient applied to a transmitter equalizer provided with a 2-tap precoder according to an approximate channel response characteristic, generating a pre-equalization signal by removing precursor ISI of a transmission feedback signal by the precoder to which the filter coefficient is applied, so as to output the pre-equalization signal as a transmitting signal, and receiving a transmission signal and generating an equalization signal by removing postcursor ISI of the received transmission signal by a receiver equalizer provided with a feedback filter having auxiliary coefficients for compensating for a difference between an overall channel response of the transmission signal and a channel response based on the precoder.Type: GrantFiled: March 24, 2023Date of Patent: December 24, 2024Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seung-Woo Lee, Sang Rok Moon, Joon Ki Lee
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Patent number: 12170554Abstract: A transmission method simultaneously transmitting a first modulated signal and a second modulated signal at a common frequency performs precoding on both signals using a fixed precoding matrix and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.Type: GrantFiled: January 5, 2024Date of Patent: December 17, 2024Assignee: SUN PATENT TRUSTInventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
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Patent number: 12156061Abstract: A method for controlling interference reporting includes: controlling an interference reporting behavior according to an interference reporting condition if radio interference is detected during a measurement performed in a non-connected state. The radio interference includes interference generated by in-device coexistence (IDC).Type: GrantFiled: January 26, 2021Date of Patent: November 26, 2024Assignee: VIVO MOBILE COMMUNICATION CO., LTD.Inventors: Qian Zheng, Xiaodong Yang
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Patent number: 12143541Abstract: Systems and methods for operating a multi-channel intercom system for audio communications between users, with reduced crosstalk, are disclosed. Exemplary implementations may: receive, by a first user station, a modulation carrier signal; capture a first audio signal from a first user, wherein the first audio signal has a first phase; at a rate based on the modulation carrier signal, invert the first phase of the first audio signal to generate a phase-flipped audio signal; transfer the phase-flipped audio signal to a second user station; at a second rate based on the modulation carrier signal, invert a phase of the phase-flipped audio signal to generate an intermediate audio signal; and present a second audio signal based on the intermediate audio signal to the second user.Type: GrantFiled: August 28, 2023Date of Patent: November 12, 2024Assignee: H.M. Electronics, Inc.Inventors: Daniel Gish, Charles Butten
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Patent number: 12126374Abstract: Various embodiments relate to spread spectrum communication. A communication system may include a base station and a user equipment. The base station may be configured to: add a cyclic prefix (CP) to each block of a number of blocks of a first direct sequence spread spectrum (DSSS) signal to generate a first cyclic prefix-direct sequence spread spectrum (CP-DSSS) signal; add artificial noise to the first CP-DSSS signal; and transmit, via a channel, the first CP-DSSS signal. The user equipment is configured to receive the first CP-DSSS signal. Associated methods and communications systems are also disclosed.Type: GrantFiled: December 20, 2021Date of Patent: October 22, 2024Assignee: Battelle Energy Alliance, LLCInventors: Arslan J. Majid, Hussein Moradi, Behrouz Farhang
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Patent number: 12119927Abstract: Methods and systems for dynamically selecting a link adaptation policy, LAP. In some embodiments, the method includes using channel quality information, additional information, and a machine learning, ML, model to select a LAP from a set of predefined LAPs, the set of predefined LAPs comprising a first LAP and a second LAP. In some embodiments, the additional information comprises: neighbor cell information about a second cell served by a second TRP, distance information indicating a distance between a UE and a first TRP, and/or gain information indicating a radio propagation gain between the UE and the serving node. The method further includes the first TRP transmitting data to the UE using the selected LAP.Type: GrantFiled: March 18, 2019Date of Patent: October 15, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Tor Kvernvik, Henrik Nyberg, Christian Skärby, Raimundas Gaigalas
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Patent number: 12047141Abstract: Provided are a channel state processing method and apparatus, a system, a terminal, a base station, and a storage medium. The method includes: receiving a configuration parameter sent by the base station; determining channel state information according to the configuration parameter; vectorizing the channel state information, and determining a reference vector coefficient for the channel state information; determining, according to the reference vector coefficient, a vector coefficient variation of the vectorized channel state information; and reporting the vector coefficient variation and the reference vector coefficient separately.Type: GrantFiled: July 26, 2019Date of Patent: July 23, 2024Assignee: ZTE CORPORATIONInventors: Yong Li, Hao Wu, Zhaohua Lu, Yijian Chen, Huahua Xiao, Yuxin Wang
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Patent number: 12047153Abstract: A method of operating a communications device for communicating data via a wireless communications network comprises detecting one or more of a plurality of beams of radio signals transmitted by the wireless communications network. The method comprises determining whether a received signal strength of the radio signals of each of the one or more beams exceeds a first evaluation threshold, identifying a sub-set of the set of detected beams of radio signals which can be used to receive data carried by the radio signals of the beam for which the received signal strength exceeds the first evaluation threshold, and entering a relaxed radio measurement state in which the communications device reduces an amount of attempted measurements of the plurality of beams of radio signals compared with a normal state according to one or more relaxed measurement state criteria.Type: GrantFiled: January 28, 2020Date of Patent: July 23, 2024Assignee: SONY GROUP CORPORATIONInventors: Vivek Sharma, Martin Warwick Beale, Yuxin Wei, Shin Horng Wong, Yassin Aden Awad
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Patent number: 12034445Abstract: A new computational machine is invented, called a clock machine, that is a novel alternative to computing machines (digital computers) based on logic gates. In an embodiment, computation is performed with one or more clock machines that use time, and can perform any Boolean function. In an embodiment, a cryptographic cipher is implemented with random clock machines, constructed from a non-deterministic process, wherein the compiled set of instructions (i.e., the implementation of the cryptographic procedure) is distinct on each device or chip that executes the cryptographic cipher. In an embodiment, by using a different set of clock machines to execute two different instances of the same cryptographic procedure, each execution of a procedure looks different to malware that may try to infect and subvert the cryptographic procedure. This cryptographic process helps hinder timing attacks. In an embodiment, a detailed implementation of the Midori cipher with random clock machines is described.Type: GrantFiled: November 21, 2021Date of Patent: July 9, 2024Assignee: Aemea Inc.Inventor: Michael Stephen Fiske
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Patent number: 12034584Abstract: This application provides a signal sending method, a signal receiving method, and a related apparatus. The method includes: modulating a bit stream to generate a modulated symbol. The modulation order of the bit stream is n, a value of the modulated symbol is one of a plurality of complex number sets, and the complex number set includes Y=2n complex numbers. The complex number set meets the following requirements: a ratio of a real part of a first complex number with a largest absolute value of the real part to a real part of a second complex number with a smallest absolute value of the real part is equal to M:N, where M and N are positive integers, and a greatest common divisor of M and N is 1.Type: GrantFiled: November 29, 2022Date of Patent: July 9, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Xiang Gao, Xinqian Xie, Zhiheng Guo
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Patent number: 11996911Abstract: Provided are a capability information feedback method and apparatus, and a channel state information feedback method and apparatus. The capability information feedback method comprises: transmitting, by a first communication node, capability information to a second communication node, where the capability information is used for indicating a capability of the first communication node; and receiving, by the first communication node, parameter signaling which is transmitted by the second communication node and corresponds to the capability of the first communication node. Through the method, the first communication node feeds the capability information supported by the first communication node back to the second communication node so that the second communication node can perform scheduling based on the capability of the first communication node, thereby reducing the system overhead and improving the system performance.Type: GrantFiled: May 29, 2020Date of Patent: May 28, 2024Assignee: ZTE CORPORATIONInventors: Guozeng Zheng, Hao Wu, Yong Li, Zhaohua Lu
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Patent number: 11962310Abstract: A receiver includes an interface, a delay line and circuitry. The interface receives data symbols and a clock signal for strobing the data symbols at selected positions. The delay line produces from the clock signal a middle sampling signal, and early and late sampling signals that respectively precedes and succeeds the middle sampling signal. The circuitry samples the data symbols using the middle, early and late sampling signals to produce early and late error signals. Based on the early and late error signals the delay line delays the middle, early and late sampling signals by separate delay values, so as to track both (i) a phase parameter indicative of a deviation between the middle sampling signal and the selected positions of the data symbols, and (ii) a width parameter indicative of a time duration of the data symbols, and to output the data symbols strobed using the middle sampling signal.Type: GrantFiled: September 14, 2022Date of Patent: April 16, 2024Assignee: APPLE INC.Inventors: Nir Tishbi, Ilia Benkovitch
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Patent number: 11962339Abstract: A radio frequency (RF) unit and a method for RF isolation. The RF unit includes first and second RF couplers, an RF filter, and an RF canceler connected in parallel with the RF filter. The first RF coupler is configured to receive an input signal. The RF filter is configured to receive a first portion of the input signal from the first RF coupler and attenuate frequencies outside of a passband of the RF filter from the first portion of the input signal. The RF canceler is configured to receive a second portion of the input signal from the first RF coupler and generate a cancellation signal from the second portion of the input signal based on a target frequency band of the RF canceler. The second RF coupler is configured to combine the cancellation signal with an output of the RF filter to generate an output signal.Type: GrantFiled: December 31, 2020Date of Patent: April 16, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Michael Chen, Khurram Muhammad, Xinguang Xu
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Patent number: 11956027Abstract: Aspects of the subject disclosure may include, for example, obtaining data regarding interference detected in a received communication signal, and performing phase adjusting for one or more radiating elements of an antenna system such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.Type: GrantFiled: August 20, 2021Date of Patent: April 9, 2024Assignee: ISCO International, LLCInventors: Amr Abdelmonem, Igor Goodman, Pablo Tacconi
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Patent number: 11941963Abstract: In accordance with a first aspect of the present disclosure, a system is provided for facilitating detecting an unauthorized access to an object, the system comprising: a plurality of ultra-wideband (UWB) communication nodes; a controller operatively coupled to said plurality of UWB communication nodes, wherein the controller is configured to: cause at least one of the UWB communication nodes to transmit one or more UWB messages to other UWB communication nodes of said plurality of UWB communication nodes; receive a channel impulse response (CIR) estimate and/or one or more parameters relating to said CIR output by the UWB communication nodes in response to receiving said UWB messages; analyze said CIR estimate and/or said parameters relating to the CIR to detect said unauthorized access to the object. In accordance with a second aspect of the present disclosure, a corresponding method is conceived for facilitating detecting an unauthorized access to an object.Type: GrantFiled: March 28, 2022Date of Patent: March 26, 2024Assignee: NXP B.V.Inventors: Filippo Casamassima, Wolfgang Eber
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Patent number: 11923881Abstract: A data receiver is configured to receive a signal, the signal comprising interferences of an interference-infested transmission channel, the data receiver being configured to form a histogram of receive information of a signal portion of the received signal and to determine mean receive information and/or a noise measure from the histogram.Type: GrantFiled: October 20, 2020Date of Patent: March 5, 2024Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Gerd Kilian, Josef Bernhard, Karol Bieg, Eberhard Gamm, Clemens Korn, Jakob Kneissl, Frank Obernosterer, Raimund Meyer
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Patent number: 11895059Abstract: A guard period for switching between uplink and downlink subframes is created by shortening a downlink subframe, i.e., by not transmitting during one or more symbol intervals at the end of the subframe. A grant message includes signaling indicating when a shortened subframe is being transmitted. An example method is implemented in a receiving node configured to receive data from a transmitting node in subframes having a predetermined number of symbol intervals. In an LTE system, this receiving node may be a UE, and the subframes are downlink subframes. This example method includes determining that a received subframe is to be shortened, relative to the predetermined number of symbol intervals and, in response to this determination, disregarding a last part of the received subframe by disregarding one or more symbols at the end of the received subframe when processing the received subframe.Type: GrantFiled: November 12, 2020Date of Patent: February 6, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Henrik Sahlin, Qiang Zhang, Johan Furuskog, Stefan Parkvall
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Patent number: 11888671Abstract: A transmitting apparatus includes a first signal generating unit that generates, on the basis of data a first signal transmitted by single carrier block transmission; a second signal generating unit that generates, on the basis of an RS, a second signal transmitted by orthogonal frequency division multiplex transmission; a switching operator that selects and outputs the second signal in a first transmission period and selects and outputs the first signal in a second transmission period; an antenna that transmits the signal output from the switching operator; and a control-signal generating unit that controls the second signal generating unit such that, in the first transmission period, the RS is arranged in a frequency band allocated for transmission of the RS from the transmitting apparatus among frequency bands usable in OFDM.Type: GrantFiled: January 6, 2022Date of Patent: January 30, 2024Assignee: Mitsubishi Electric CorporationInventors: Fumihiro Hasegawa, Akinori Taira
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Patent number: 11843447Abstract: Systems and methods are provided for achieving interference coordination for 5G flight communication. That is, systems and methods are disclosed that improve QoS by implementing interference coordination between nodes, wherein one of the nodes is optimized for flight communication.Type: GrantFiled: January 8, 2020Date of Patent: December 12, 2023Assignee: AERO5G, INC.Inventors: Jun Wang, Bin Liu
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Patent number: 11817972Abstract: A receiver comprising: a processing module configured to: receive a first portion of a packet of received signalling from a first antenna; receive a carrier estimate signal; adjust the first portion based on the carrier estimate signal and correlate the signal with an expected code sequence to provide a first correlated signal; a tracking module configured to: receive the first correlated signal and update the carrier estimate signal, wherein the processing module is further configured to: receive a second portion of the packet from a second antenna; adjust the second portion based on the carrier estimate signal and correlate the signal to provide a second correlated signal, and wherein the receive path further comprises a phase calculation module configured to: receive the first and second correlated signals and determine a respective first and second carrier phase and an angle of arrival of the received signalling.Type: GrantFiled: October 19, 2021Date of Patent: November 14, 2023Assignee: NXP B.V.Inventors: Manuel Lafer, Wolfgang Küchler
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Patent number: 11811482Abstract: A method for sidelink beam acquisition for device to device (D2D) communication includes calculating, by a base station, one or more first directions, where the one or more first directions are directions of a second electronic device located relative to a first electronic device; calculating, by the base station, one or more second directions, where the one or more second directions are directions of the first electronic device located relative to the second electronic device; transmitting, by the base station and to the first electronic device, the one or more first directions; and transmitting, by the base station and to the second electronic device, the one or more second directions.Type: GrantFiled: March 13, 2020Date of Patent: November 7, 2023Assignee: Huawei Technologies Co., Ltd.Inventors: Pengfei Xia, Bin Liu, Young Hoon Kwon
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Patent number: 11811439Abstract: A mobile communication device that is configured to cancel interference within received millimeter wave band signals. The device includes a receiver circuit that is configured to receive a millimeter wave band signal, adjust gain provided to the millimeter wave band signal at a first amplifier, cancel interference in millimeter wave band signal after gain is adjusted by the first amplifier, and adjust gain provided to the millimeter wave band signal at a second amplifier after interference is cancelled.Type: GrantFiled: May 23, 2022Date of Patent: November 7, 2023Assignee: Apple Inc.Inventors: Mikhail T. Galeev, Oner Orhan, Arnaud Lucres Amadjikpe, Benjamin Grewell, Navid Naderi, Hosein Nikopour, Susruth Sudhakaran, Shilpa Talwar, Liang Xian
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Patent number: 11785564Abstract: A communication system comprises a clock generator configured to generate a plurality of system clock signals used to synchronize components included in each of communication nodes in the communication system based on an external clock signal provided by an external clock source located outside the communication system and a physical layer configured to transmit any one of the generated system clock signals to a small cell communicatively connected to an end communication node of the communication system.Type: GrantFiled: November 19, 2021Date of Patent: October 10, 2023Assignee: SOLiD, INC.Inventors: Donghee Kwon, Hoopyo Hong
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Patent number: 11770284Abstract: Apparatuses, methods, and systems for per carrier scaling of a cancellation pulse of a multi-carrier signal are disclosed. One method includes identifying a target PAPR (peak to average power ratio) for the multi-carrier signal, identifying a target EVM (error vector magnitude) for each of cj carriers of the multi-carrier signal, setting a scaling factor for each of the cj carrier to an initial value, or each carrier cj adjusting the scaling factor for the carrier cj until a measured EVM of the carrier cj satisfies the target EVM for the subcarrier cj while maintaining the PAPR target for the multi-carrier signal, and the cancellation pulse of the multi-carrier signal with the adjusted scaling factor for each of the cj carriers.Type: GrantFiled: May 23, 2022Date of Patent: September 26, 2023Assignee: Meta Platforms, Inc.Inventors: Mohammad Janani, Djordje Tujkovic
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Patent number: 11757481Abstract: Technologies directed to co-channel interference detection using a signal correlation test are described. One method includes receiving a radio frequency (RF) signal and generating digital sample corresponding to the RF signal. The method further includes determining a first correlation coefficient using the digital samples, a first value, and a second value. The first value corresponds to a signal lag parameter and the second value corresponds to a cyclic frequency parameter. The method further includes determining a second correlation coefficient using the digital samples, the first value, and a third value corresponding to the cyclic frequency parameter. The second value and the third value are multiples of a fourth value. The method further includes determining, using the first correlation coefficient and the second correlation coefficient, that first RF signal comprises a first portion from a second communication device and a second portion from a third communication device.Type: GrantFiled: December 7, 2021Date of Patent: September 12, 2023Assignee: Amazon Technologies, Inc.Inventors: Pengfei Xia, Timothy Leo Gallagher, Danijela Cabric
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Patent number: 11742047Abstract: Methods, systems, and devices for shared error correction coding (ECC) circuitry are described. For example, a memory device configured with shared ECC circuitry may be configured to receive data at the shared circuitry from either a host device or a set of memory cells of the memory device. The shared circuitry may be configured to generate a set of multiple syndromes associated with a cyclic error correction code, based on the received data. As part of an encoding process, an encoder circuit may generate a set of parity bits based on the generated syndromes. As part of a decoding process, a decoder circuit may generate an error vector for decoding the received data, based on the generated syndromes. The decoder circuit may also correct one or more errors in the received data based on generating the error vector.Type: GrantFiled: June 29, 2021Date of Patent: August 29, 2023Assignee: Micron Technology, Inc.Inventors: Marco Sforzin, Paolo Amato, Christophe Vincent Antoine Laurent
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Patent number: 11736140Abstract: RF communication systems with interference cancellation for coexistence are provided herein. In certain embodiments, an RF communication system includes a transmitter that transmits a transmit signal through a first front end circuit, a receiver that processes a receive signal from a second front end circuit, and a feedback receiver that processes a feedback signal from the first front end circuit to generate a digital interference cancellation signal that compensates the receiver for interference arising from the transmitter.Type: GrantFiled: September 23, 2020Date of Patent: August 22, 2023Assignee: Skyworks Solutions, Inc.Inventors: David Richard Pehlke, Anand Raghavan, Poul Olesen, Werner Schelmbauer, Thorsten Tracht, Wolfgang Thomann, Amir Israel Rubin, Assi Jakoby, Ofer Benjamin
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Patent number: 11726166Abstract: A full duplex dual polar radar transceiver comprising a dual polarisation radar antenna, a transmission path, a horizontal polarisation receive path, and a vertical polarisation receive path, a first cancellation path connected between the transmission path and the vertical polarisation receive path, and a second cancellation path connected between the transmission path and the horizontal polarisation receive path. Each cancellation path is configured to vary a transmission signal provided by the transmission path by varying at least one of a phase shift, a delay, or an amplitude so as to cancel self-interference on each of the vertical and horizontal polarisation receive paths.Type: GrantFiled: November 18, 2020Date of Patent: August 15, 2023Assignee: Kabushiki Kaislia ToshibaInventors: Alfred Daniel Wiffen, Gavin Watkins
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Patent number: 11722339Abstract: A pilot information symbol sending method, a channel estimation method, and a communications device. The method includes: determining, based on a discrete Fourier transform DFT matrix and a sensing matrix, a pilot information symbol corresponding to each antenna on each pilot resource; and sending a corresponding pilot information symbol on each of the pilot resources for each of the antennas; where the sensing matrix is determined through training of channel information.Type: GrantFiled: November 14, 2022Date of Patent: August 8, 2023Assignee: VIVO MOBILE COMMUNICATION CO., LTD.Inventors: Jianjun Li, Yang Song, Fei Qin
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Patent number: 11705628Abstract: A radio frequency antenna system is provided and can include a radio printed circuit board, a first antenna element located proximate an edge of the radio printed circuit board, a second antenna element located proximate the edge of the radio printed circuit board, and a cancelation circuit located on the radio printed circuit board and connected to feeding points of the first antenna and the second antenna, wherein the cancelation circuit can provide a cancelation effect at output ports of the cancelation circuit with respect to signals broadcast by the first antenna element and the second antenna element over air.Type: GrantFiled: December 8, 2021Date of Patent: July 18, 2023Assignee: Ademco Inc.Inventor: Michal Pokorny
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Patent number: 11700157Abstract: A tracking and rejection filter for use in a receiver of a radio includes a selectable filter configured to provide an output digital in-phase signal and an output digital quadrature signal based on a center frequency, a digital in-phase signal corresponding to an in-phase component of a received radio frequency signal, and a digital quadrature signal corresponding to a quadrature component of the received radio frequency signal. The tracking and rejection filter includes a select circuit configured to select the center frequency of the selectable filter according to whether an interfering signal is detected in a target frequency band of the received radio frequency signal. The center frequency is selected from a predetermined frequency and an estimated center frequency determined using an instantaneous frequency signal. The instantaneous frequency signal is based on the digital in-phase signal and the digital quadrature signal.Type: GrantFiled: February 16, 2022Date of Patent: July 11, 2023Assignee: Skyworks Solutions, Inc.Inventor: Alexander August Arthur Hakkola
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Patent number: 11693121Abstract: A method and a function for checking the integrity of the processing of a radionavigation signal emitted by a satellite, the signal being received by a receiver comprising reception means and processing means, the processing means comprising a linear anti-interference filter, the integrity checking method comprising at least a first phase of detection of a risk of false lock-on comprising the following steps: a step of recovery of a nominal theoretical self-correlation function of the received signal not processed by the linear anti-interference filter; a step of determination of a mean theoretical self-correlation function of the signal received and processed by the linear anti-interference filter over a defined integration period; a step of determination of the number of local maxima of the modulus or of the modulus squared of the mean theoretical self-correlation function, a risk of false lock-on being detected if the number of local maxima is greater than or equal to two.Type: GrantFiled: March 10, 2020Date of Patent: July 4, 2023Assignee: THALESInventors: Nicolas Martin, Daniel Millwood, Stéphane Rollet
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Patent number: 11688410Abstract: Example operations may include determining a first noise estimate of noise that propagates along a receive path of a device. The operations may further include determining a second noise estimate of the noise and determining a cross-relationship estimate with respect to the noise. In addition, the operations may include adjusting one or more correction filters configured to correct for imbalances between a first branch and a second branch of the receive path. The adjusting may be based on the first noise estimate, the second noise estimate, and the cross-relationship estimate.Type: GrantFiled: May 11, 2021Date of Patent: June 27, 2023Assignee: MaxLinear, Inc.Inventors: Reza Hoshyar, Hossein Dehghan, Abhishek Kumar Agrawal, Kapil Gulati, Eugenio Rivera Ramos, Shivashankar Beesanahalli, Georgy Gilyarovskiy
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Patent number: 11689349Abstract: A Bluetooth receiver has an RF front end which has a gain control input, the RF front end converting wireless packets into a baseband signal which is coupled to the input of an analog to digital converter (ADC). A clock generator provides a clock coupled to the ADC, and an AGC processor performs an AGC process to provide a gain which places the baseband symbols in a range that is less than 90% of the input dynamic range of the ADC. When in a connected state, the clock generator provides a clock which is slower than is required to complete the AGC process during a preamble interval, and the AGC process uses a few initial bits of the address field. The remaining bits of the address field is compared with the corresponding address bits of the receiver to determine whether to receive the packet.Type: GrantFiled: December 3, 2021Date of Patent: June 27, 2023Assignee: Silicon Laboratories Inc.Inventor: Sriram Mudulodu
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Patent number: 11665041Abstract: A method for modulating data for transmission within a communication system. The method includes establishing a time-frequency shifting matrix of dimension N×N, wherein N is greater than one. The method further includes combining the time-frequency shifting matrix with a data frame to provide an intermediate data frame. A transformed data matrix is provided by permuting elements of the intermediate data frame. A modulated signal is generated in accordance with elements of the transformed data matrix.Type: GrantFiled: June 14, 2021Date of Patent: May 30, 2023Assignee: Cohere Technologies, Inc.Inventors: Ronny Hadani, Shlomo Selim Rakib
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Patent number: 11658616Abstract: A frontend circuit for a radio frequency (RF) receiver comprises an RF amplifier circuit to receive an RF signal, a local oscillator (LO) circuit to produce a LO signal, a mixer circuit configured to mix the RF signal with the LO signal to produce a down-converted intermediate frequency (IF) signal, a transimpedance amplifier (TIA) circuit to receive the IF signal, and an error reduction circuit operatively coupled to the TIA circuit and configured to reduce voltage error caused by error charge from parasitic capacitance of the frontend circuit.Type: GrantFiled: April 22, 2021Date of Patent: May 23, 2023Assignee: Analog Devices International Unlimited CompanyInventor: Debopam Banerjee
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Patent number: 11652557Abstract: Aspects of the present disclosure include methods for communication using a MIMO channel, such as an acoustic channel for underwater communication. An acoustic receiver may receive a signal comprising information encoded in at least one transmitted symbol. Using a two-layer iterative process, the at least one transmitted symbol is estimated. The first layer of the two-layer process uses iterative exchanges of soft-decisions between an adaptive turbo equalizer and a MAP decoder. The second layer of the two-layer process uses a data-reuse procedure that adapts an equalizer vector of both a feedforward filter and a serial interference cancellation filter of the adaptive turbo equalizer using a posteriori soft decisions of the at least one transmitted symbol. After a plurality of iterations, a hard decision of the bits encoded on the at least one transmitted symbol is output from the MAP decoder.Type: GrantFiled: March 17, 2020Date of Patent: May 16, 2023Assignee: UNIVERSITY OF MISSOURIInventors: Yahong Rosa Zheng, Weimin Duan, Chengshan Xiao
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Patent number: 11651131Abstract: Glitch source identification and ranking is provided by: identifying a plurality of glitch sources in a circuit layout; back referencing the plurality of glitch sources to corresponding lines in a Resistor Transistor Logic (RTL) file defining the plurality of glitch sources; identifying, in the circuit layout, a plurality of glitch terminuses associated with the plurality of glitch sources; determining a plurality of glitch power consumption values associated with the plurality of glitch sources based on fanouts in the circuit layout extending from the plurality of glitch sources to the plurality of glitch terminuses; ranking, by a processor, the plurality of glitch sources based on corresponding glitch power consumption values of the plurality of glitch power consumption values corresponding to individual glitch sources of the plurality of glitch sources; and reporting the corresponding lines in the RTL file associated with the ranked plurality of glitch sources.Type: GrantFiled: June 1, 2021Date of Patent: May 16, 2023Assignee: Synopsys, Inc.Inventors: Vaibhav Jain, Solaiman Rahim, Myunghoon Yoon, Qing Su
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Patent number: 11641426Abstract: A USB phone supporting multi-device conference application includes: a touch display module, an audio processing module, a digital enhanced cordless telecommunications (DECT) module, a Bluetooth module, a USB interface, and an MCU controller. The Bluetooth module is configured to establish a Bluetooth communication connection with an external Bluetooth terminal; the USB interface is configured to establish a USB communication connection with an external intelligent terminal; the DECT module is configured to establish a communication connection with an external wireless headphone; the touch display module is configured to display data, and recognize and obtain a touch operation instruction; the audio processing module is configured to perform audio processing on received audio data; the MCU controller is configured to process received data, further provided with a first mixer and connected to the touch display module, the audio processing module, the DECT module, the Bluetooth module, and the USB interface.Type: GrantFiled: February 9, 2021Date of Patent: May 2, 2023Assignee: YEALINK (XIAMEN) NETWORK TECHNOLOGY CO., LTD.Inventors: Yingkun Chu, Yun Liao
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Patent number: 11636868Abstract: An audio processing method includes: converting a time-domain audio signal into a frequency-domain audio signal; determining a noise reduction gain according to the frequency-domain audio signal; and selecting at least one set of time-domain filter coefficients from a plurality sets of time-domain filter coefficients according to the noise reduction gain; configuring a time-domain filter according to the at least one selected set of time-domain filter coefficients, and filtering the time-domain audio signal with the time-domain filter.Type: GrantFiled: February 1, 2021Date of Patent: April 25, 2023Assignee: Realtek Semiconductor Corp.Inventor: Wei-Hung He
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Patent number: 11637639Abstract: Methods and systems for a passive noise dampener. A system includes a hybrid fiber-coaxial network which carries content signals between a service provider system and premises, where the hybrid fiber-coaxial network is susceptible to receiving wireless noise signals, a plurality of passive noise dampeners, each passive noise dampener connected between the hybrid fiber-coaxial network and a premise of the premises. Each passive noise dampener includes an antenna based on medium used in the hybrid fiber-coaxial network. The antenna receives the wireless noise signals. A phase shifting device phase shifts 180 degrees phase shift the wireless noise signals received by the antenna to generate a counter signal. A directional coupler injects the counter signal into the hybrid fiber-coaxial network to mitigate impact of the wireless noise signals received by the hybrid fiber-coaxial network on the content signals. The antenna, the phase shifting device, and the directional coupler are passive devices.Type: GrantFiled: August 8, 2022Date of Patent: April 25, 2023Assignee: Charter Communications Operating, LLCInventor: Michael David Dionne
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Patent number: 11630185Abstract: A method for calibrating a cascaded radar system includes transmitting first radar transmission signal from a radar device. First radar reflection signals corresponding to the respective first radar transmission signal reflected from calibration target are received at each of the radar devices. The first radar reflection signals are demodulated to generate first baseband signals at each of the radar devices. A second radar transmission signal is modulated with respect to the first radar transmission signal at the respective one of the radar devices. The second radar transmission signal is transmitted from the respective one of the radar devices and are received as second radar reflection signals at each of the radar devices. The second radar reflection signals are demodulated to generate second baseband signals at each of the radar devices, and each of the radar devices are calibrated based on the first and second baseband signals.Type: GrantFiled: November 13, 2020Date of Patent: April 18, 2023Assignee: Texas Instruments IncorporatedInventors: Karthik Subburaj, Vashishth Dudhia, Shailesh Joshi
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Patent number: 11627543Abstract: An operating method of a terminal in a wireless communication system including a cell and the terminal includes receiving an external signal including a synchronization signal block (SSB) from the cell, the SSB including a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH), obtaining a cell identification number of the cell using the PSS and the SSS, determining a plurality of decoding priorities of a plurality of candidate indexes of the SSB, and performing decoding on the PBCH based on the plurality of decoding priorities.Type: GrantFiled: September 3, 2021Date of Patent: April 11, 2023Assignee: SAMSUNG ELECTRONICS CO, LTD.Inventors: Dahae Chong, Haechul Lee, Joohyun Do, Myungjoon Shim, Sungyoon Cho
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Patent number: 11611425Abstract: A Bluetooth receiver has an RF front end which has a gain control input, the RF front end converting wireless packets into a baseband signal which is coupled to the input of an analog to digital converter (ADC). A clock generator provides a clock coupled to the ADC, and an AGC processor performs an AGC process to provide a gain which places the baseband symbols in a range that is less than 90% of the input dynamic range of the ADC. When in a connected state, the clock generator provides a clock which is slower than is required to complete the AGC process during a preamble interval, and the AGC process uses a few initial bits of the address field. The remaining bits of the address field is compared with the corresponding address bits of the receiver to determine whether to receive the packet.Type: GrantFiled: January 27, 2022Date of Patent: March 21, 2023Assignee: Silicon Laboratories Inc.Inventor: Sriram Mudulodu
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Patent number: 11582035Abstract: A method for generating a secret key at a first node for data communication between the first node and a second node. A channel estimate of a communication channel between the first and second nodes is obtained. A time-frequency matrix associated with the communication channel is then obtained based on the time-frequency transformation of the channel estimate. The secret key is then produced based on the time-frequency matrix. Furthermore, a corresponding key generator may be provided for generating a secret key.Type: GrantFiled: March 28, 2018Date of Patent: February 14, 2023Assignee: Agency for Science, Technology and ResearchInventors: Duy Hieu Nguyen, Sumei Sun, Yong Dong Wu, Boon Shyang Lim
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Patent number: 11563514Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a network may schedule a user equipment (UE) for multiple transmission/reception point (TRP) communication. The network may transmit a single downlink control information (DCI) message to the UE to dynamically configure multiple transmission configuration indicator (TCI) states for the multiple TRPs. In a first example, the DCI message may include a bit field indicating a set of antenna ports and the multi-TRP scheme for transmission. In a second example, the DCI message may include a separate field indicating the multi-TRP scheme (e.g., based on UE capabilities). In a third example, the DCI may indicate redundancy versions (RVs) for different TRPs in an RV field or across multiple fields. In a fourth example, the DCI may include an indication of a precoding resource block group (PRG) size that may be interpreted differently based on the indicated multi-TRP scheme.Type: GrantFiled: February 12, 2020Date of Patent: January 24, 2023Assignee: QUALCOMM INCORPORATEDInventors: Mostafa Khoshnevisan, Xiaoxia Zhang, Jing Sun, Tao Luo, Arumugam Chendamarai Kannan
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Patent number: 11563620Abstract: Methods, systems, and devices for wireless communications are described that support a single carrier multi-level coding (MLC) amplitude phase shift keying (APSK) modulated waveform. For example, a user equipment (UE) capable to communicate using MLC APSK modulated waveforms may transmit a channel state information (CSI) report, including a recommendation for a waveform configuration, to a base station. The base station may receive the CSI report and may transmit a configuration message to the UE, which may configure the UE with a set of waveform parameters associated with MLC APSK modulation. The UE may receive the configuration message and may communicate with the base station using MLC APSK modulated waveforms and based on the set of waveform parameters, which may reduce phase noise and provide lower peak average power ratio (PAPR) signaling.Type: GrantFiled: June 10, 2021Date of Patent: January 24, 2023Assignee: QUALCOMM IncorporatedInventors: Daniel Paz, Michael Levitsky, Assaf Touboul
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Patent number: 11533148Abstract: A communication device (20) includes a processing unit (232) that performs a NOMA transmission process on a partial range of transmission data to be transmitted to another communication device (40), the NOMA transmission process being signal processing for non-orthogonal multiple access, and a transmitting unit (235) that transmits data obtained after the NOMA transmission process to the another communication device.Type: GrantFiled: April 23, 2019Date of Patent: December 20, 2022Assignee: SONY CORPORATIONInventors: Hiroki Matsuda, Naoki Kusashima
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Patent number: 11490396Abstract: A communication apparatus that performs wireless communication obtains information of a channel with a possibility of interference in wireless communication that is output based on position information of the communication apparatus, position information of a source of a radio wave which has a possibility of interference in the wireless communication, and time information, and selects a channel to be used in the wireless communication. Whether a channel corresponding to the obtained channel information is the currently selected channel is determined, and the currently selected channel is changed to a channel other than the channel corresponding to the obtained channel information if the channel corresponding to the obtained channel information is the same channel as the currently selected channel. If communication is being performed, it is determined after the communication whether the channel corresponding to the obtained channel information is the same channel as the currently selected channel.Type: GrantFiled: July 24, 2020Date of Patent: November 1, 2022Assignee: CANON KABUSHIKI KAISHAInventors: Keigo Tsuchiya, Ayumi Kabata