Antinoise Or Distortion Patents (Class 375/285)
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Patent number: 12143247Abstract: Methods and apparatus for reducing mode conversion associated with differential signals are disclosed. An example method includes providing a common mode dither signal between a first terminal and a second terminal associated with a differential signal, generating a correlation signal representing a correlation of the common mode dither signal and the differential signal, and selectively incrementing a first capacitive loading at the first terminal or a second capacitive loading at the second terminal based at least in part on the correlation signal.Type: GrantFiled: July 15, 2022Date of Patent: November 12, 2024Assignee: Aeonsemi, Inc.Inventor: Ky-Anh Tran
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Patent number: 12126362Abstract: The invention relates to systems, methods, network devices, and machine-readable media for encoding an input message with robustness against noise by executing a compressing hash function on the input message, encoding an output of the hash function and the input message to generate a single combined message, executing a permutation function on the combined message, and encoding the result of the permutation function with a list-decodable code.Type: GrantFiled: September 28, 2021Date of Patent: October 22, 2024Assignees: NTT Research, Inc., Ramot at Tel Aviv University LTDInventors: Ofer Grossman, Justin Holmgren, Eylon Yogev
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Patent number: 12087986Abstract: An isolator, circuit, and isolation method are disclosed. An illustrative capacitive isolator is disclosed to include an input side that receives an electrical input signal, an output side that outputs an electrical output signal, and an isolation barrier that electrically isolates the input side from the output side. The input side is further disclosed to include an array of input capacitors, where each capacitor in the array of input capacitors receives an input pulse based on the electrical input signal, where each capacitor in the array of input capacitors receives the input pulse offset from input pulses received at others of the capacitors in the array of input capacitors thereby extending a pulse duration of the electrical input signal.Type: GrantFiled: January 26, 2022Date of Patent: September 10, 2024Assignee: MPICS INNOVATIONS PTE. LTDInventor: Kok Keong Richard Lum
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Patent number: 12047212Abstract: A method is disclosed of a transmitter configured to transmit a physical layer packet having a plurality of midambles. The method includes applying a respective phase shift for each midamble of the physical layer packet, and transmitting the physical layer packet. The respective phase shift is applied to at least a portion of symbols of the midamble. A method is also disclosed of a receiver configured to receive a physical layer packet having a plurality of midambles. The method includes receiving the physical layer packet, and counteracting a respective phase shift for each midamble of the physical layer packet. Counteracting the respective phase shift includes applying an opposite of the respective phase shift to at least a portion of symbols of the midamble or compensating the respective phase shift for at least a portion of symbols of the midamble. Corresponding apparatuses, and computer program product are also disclosed.Type: GrantFiled: March 18, 2020Date of Patent: July 23, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Miguel Lopez, Leif Wilhelmsson
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Patent number: 11929797Abstract: A transmission apparatus including the number of antennas different from a reception apparatus and performing transmission by SC-MIMO to and from the reception apparatus includes a training signal generation unit that generates a known signal predetermined, a CP addition unit that adds a CP to each symbol of a transmission signal including the known signal, a weight generation unit that multiplies a channel matrix estimated based on the known signal by the reception apparatus by a pseudo-inverse matrix obtained by a predetermined number of iterative calculations to generate a transmission weight that is diagonalizable, and a transmission beam formation unit that uses the transmission weight to form a transmission beam for the transmission signal where the CP is added.Type: GrantFiled: March 2, 2020Date of Patent: March 12, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Hayato Fukuzono, Keita Kuriyama, Masafumi Yoshioka, Takafumi Hayashi
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Patent number: 11916581Abstract: A wireless communication control method suppresses interference using an MMSE weight in an environment of wireless communication where the number of transmission stations transmitting a signal to a receiving station is larger than the number of reception antennas of the receiving station. The receiving station calculates power of an interference signal included in a signal received by the receiving station from the transmission stations the number of which is larger than the number of reception antennas, the interference signal corresponding to a part by which the number of transmission stations exceeds the number of reception antennas. The receiving station calculates the MMSE weight depending on the power of the interference signal, recalculates the power of the interference signal using the MMSE weight, and recalculates the MMSE weight depending on the recalculated power of the interference signal.Type: GrantFiled: December 12, 2022Date of Patent: February 27, 2024Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kenichi Takizawa, Masafumi Moriyama, Fumihide Kojima, Atsushi Kurosawa
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Patent number: 11881967Abstract: There are disclosed techniques (e.g., apparatus, methods) for estimating an impulse response of a linear system. An apparatus is configured to generate a transmit signal on the basis of a first sequence. The apparatus is configured to obtain a receive signal and to multiply the receive signal with a second sequence, to obtain a modified receive signal, wherein the second sequence is different from the first sequence. The apparatus is configured to analog-to-digital, ADC, convert an integration result in order to obtain a sample value, the integration result being based on an integration of the modified receive signal over a period of time. The apparatus is configured to obtain an estimate of the impulse response on the basis of a plurality of sample values.Type: GrantFiled: April 7, 2022Date of Patent: January 23, 2024Assignees: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Technische Universität IlmenauInventors: Christoph Wagner, Florian Römer, Rudolph Sebastian Semper, Giovanni Del Galdo
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Patent number: 11799702Abstract: Techniques are described herein that illustrate a feedback system to configure various format parameters of physical layer convergence procedure protocol data units (PPDUs) transmitted across a communication link. A receiving device may determine a Doppler shift or a delay spread of a signal received from a transmitting device. The receiving device may determine one or more format parameters for a future PPDU based on the Doppler shift or the delay spread. The receiving device may transmit an indication that includes the format parameters for the future PPDU to the transmitting device. The transmitting device may modify one or more format parameters of a PPDU based on the information in the indication. In some cases, the receiving device may indicate characteristics of mid-ambles, a type of PPDU, a guard interval, high efficiency long training field size for a future PPDU.Type: GrantFiled: March 12, 2021Date of Patent: October 24, 2023Assignee: QUALCOMM IncorporatedInventors: Yan Zhou, Bin Tian, Alfred Asterjadhi, George Cherian
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Patent number: 11736133Abstract: Radio frequency (RF) communication systems with coexistence management are provided herein. In certain embodiments, a method of coexistence management includes generating an RF observation signal based on observing a cellular transmit signal using a cellular front end system, processing the RF observation signal to generate digital observation data using a cellular transceiver, generating a digital wireless local area network receive signal based on processing an RF wireless local area network receive signal using a wireless local area network transceiver, processing the digital observation data to determine an estimated amount of aggressor spectral regrowth present in the RF wireless local area network receive signal using a spectral regrowth modeling circuit of the wireless local area network transceiver, and compensating the digital baseband wireless local area network receive signal for RF signal leakage based on the estimated amount of aggressor spectral regrowth.Type: GrantFiled: March 15, 2022Date of Patent: August 22, 2023Assignee: Skyworks Solutions, Inc.Inventor: Anand Raghavan
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Patent number: 11637574Abstract: A method for data transmission of a value pair in a network system. The method is performed in a network node and comprises transforming a value pair, wherein the value pair is represented as a complex number, by changing a magnitude of the value pair with a factor of 2 raised to the power of N/2, where N is an integer, and when N is odd the transform comprises a rotation in the complex plane of an odd integer multiple of 45 degrees, and transmitting the transformed value pair to another network node, wherein the transmission comprises an indication of the value of N. Network nodes, computer programs and a computer program product for data transmission of a value pair in a network system are also presented.Type: GrantFiled: December 10, 2018Date of Patent: April 25, 2023Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Fredrik Huss
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Patent number: 11595239Abstract: An in-phase and quadrature mismatch compensator for a quadrature transmitter includes a delay element, a complex-valued filter and an adder. The delay element receives an input transmit signal and outputs a delayed transmit signal. The complex-valued filter receives the input transmit signal and outputs a selected part of a filtered output transmit signal. The adder adds the delayed transmit signal and the selected part of the filtered output transmit signal and outputs a pre-compensated transmit signal. In one embodiment, the selected part of the filtered output transmit signal includes the real part of the complex-valued output transmit signal. In another embodiment, the selected part of the filtered output transmit signal includes the imaginary part of the complex-valued output transmit signal. Two transmit real-valued compensators are also disclosed that combine the in-phase and quadrature signals before being filtered.Type: GrantFiled: January 10, 2022Date of Patent: February 28, 2023Inventors: Elina Nayebi, Pranav Dayal, Kee-Bong Song
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Patent number: 11575460Abstract: A wireless networking system is provided. The wireless networking system includes a base station device including processing circuitry configured to detect a transmission rate from a portion of a preamble of an incoming packet transmission signal and adapt a radio configuration to receive a remainder of the incoming packet transmission signal at the transmission rate.Type: GrantFiled: July 22, 2020Date of Patent: February 7, 2023Assignee: Microsoft Technology Licensing, LLCInventors: Tusher Chakraborty, Zerina Kapetanovic, Deepak Vasisht, Ranveer Chandra
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Patent number: 11503541Abstract: A method of a network node adapted to transmit a wake-up signal for waking up one or more wireless communication receivers is disclosed, as well as a method for the wireless communication receiver, such network node and wireless communication receiver, and computer programs for implementing the methods. Each wireless communication receiver is comprised in a wireless communication device and is associated with a wake-up radio adapted to wake up the wireless communication receiver in response to detecting the wake-up signal. An indication of a maximum frequency error of the wake-up radio associated with the wireless communication receiver is acquired such that a non-data transmission bandwidth for exclusive use by the wake-up signal can be determined. The wake-up signal is transmitted over a wake-up signal transmission frequency interval having a wake-up signal transmission bandwidth, wherein the wake-up signal transmission bandwidth is less than, or equal to, the non-data transmission bandwidth.Type: GrantFiled: January 8, 2021Date of Patent: November 15, 2022Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Leif Wilhelmsson, Miguel Lopez
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Circuitry distortion corrector, measurement device, correction data generator, and correction method
Patent number: 11502759Abstract: The present disclosure provides a circuitry distortion corrector for correcting distortions of electrical signals. The circuitry distortion corrector comprises a first correction filter that filters the received signals, and a second correction filter that is coupled to the first correction filter and filters the signals that are filtered by the first correction filter. The first correction filter operates based on first filter coefficients that are based on first value tuples, each first value tuple comprising a first frequency and a respective first circuitry characterizing value, and wherein the first frequencies are equally spaced apart, and the second correction filter operates with second filter coefficients that are based on second value tuples, each second value tuple comprising a second frequency and a respective second circuitry characterizing value, wherein the second frequencies are logarithmically spaced apart.Type: GrantFiled: December 18, 2020Date of Patent: November 15, 2022Assignee: Rohde & Schwarz GmbH & Co. KGInventors: Andrew Schaefer, Andreas Ziegler -
Patent number: 11477058Abstract: An inter-carrier interference method comprises: receiving one or more OFDM signal comprising plural blocks of OFDM subcarriers of a first type and plural blocks of OFDM subcarriers of a second type, wherein the frequencies of the subcarriers of each block of OFDM subcarriers of the first type are contiguous and wherein the plural blocks of subcarriers of the first type are distributed amongst the plural blocks of subcarriers of the second type; for each of the plural blocks of subcarriers of the first type, estimating inter-carrier interference components; estimating inter-carrier interference components for the subcarriers of the second type using the inter-carrier interference components estimated for the plural blocks of subcarriers of the first type; and compensating for inter-carrier interference in the plural blocks of subcarriers of the second type using the inter-carrier interference components estimated for the sub-carriers of the second type, thereby to generate plural compensated blocks of subcarriType: GrantFiled: August 11, 2017Date of Patent: October 18, 2022Assignee: NOKIA TECHNOLOGIES OYInventors: Tero Ihalainen, Kari Pajukoski, Toni Levanen, Ville Syrjälä
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Patent number: 11431102Abstract: An information handling system (IHS) includes a multiple antenna system. The multiple antenna system includes a first antenna system, the first antenna system comprising a first antenna and a first reflector network; a second antenna system, the second antenna comprising a second antenna and a second reflector network, at least one of the first reflector network and the second reflector network comprising a configurable pattern reflector; and, an antenna control system, the antenna control system controlling configuration of the configurable pattern reflector.Type: GrantFiled: September 4, 2020Date of Patent: August 30, 2022Assignee: Dell Products L.P.Inventors: Changsoo Kim, Sumana Pallampati, Suresh Ramasamy, Ching Wei Chang
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Patent number: 11424897Abstract: A user equipment (UE) may multiplex peak suppression information message (PSIM) on a physical uplink shared channel (PUSCH) with data for efficient implementation of PSIMs for peak to average power ratio (PAPR) reduction. A UE may clip peaks from a signal to be transmitted and capture information of the clipped peaks into a PSIM. The UE may then multiplex the PSIM on the PUSCH such that a receiving device (for example, a base station) may receive the signal and reconstruct the signal (for example, PUSCH data) using the PSIM. According to some aspects, each PUSCH symbol may include a PSIM for a previous PUSCH symbol (for example, such that causality is preserved if multiplexing PSIM and data for each PUSCH symbol). Various aspects of the techniques described herein may further provide for PSIM positioning in frequency, PSIM modulation, PSIM channel coding, PSIM multiple-input multiple-output (MIMO) configurations, among other examples.Type: GrantFiled: September 24, 2020Date of Patent: August 23, 2022Assignee: QUALCOMM IncorporatedInventors: Ory Eger, Assaf Touboul, Noam Zach, Sharon Levy, Guy Wolf, Shay Landis, Ran Berliner
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Patent number: 11375400Abstract: The present technology relates to a wireless communication apparatus and method by which communication can be performed with a higher efficiency. The wireless communication apparatus includes a preamble generation section that generates a preamble that is to be deployed at the top of a transmission frame and includes header information, a midamble generation section that generates a midamble that is to be deployed in the middle of the transmission frame and includes information of at least part of the header information, and a wireless transmission processing section that transmits the transmission frame including the preamble and the midamble. The present technology can be applied to a wireless communication apparatus.Type: GrantFiled: June 22, 2018Date of Patent: June 28, 2022Assignee: SONY CORPORATIONInventors: Shigeru Sugaya, Ren Sugai, Yuichi Morioka
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Patent number: 11375187Abstract: A filter is configured for processing a reconstructed frame for generation of a filtered reconstructed frame, and wherein the reconstructed frame comprises a plurality of pixels. The filter includes one or more processor configured to scan a current pixel of the reconstructed block and its neighboring pixels of the current pixel according to a predefined scan template, obtain spectrum components by performing transform for the current pixel and its neighboring pixels, obtain filtered spectrum components based on a filtering parameter and the spectrum components, obtain filtered pixels by performing inverse transform for the filtered spectrum components, and generate a filtered reconstructed block based on the filtered pixels.Type: GrantFiled: March 16, 2021Date of Patent: June 28, 2022Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Sergey Yurievich Ikonin, Victor Alexeevich Stepin, Alexander Alexandrovich Karabutov, Elena Alexandrovna Alshina, Roman Igorevich Chernyak, Jianle Chen, Dmitry Yurievich Kuryshev
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Patent number: 11361779Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.Type: GrantFiled: April 30, 2019Date of Patent: June 14, 2022Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Markus Lohwasser, Manuel Jander, Max Neuendorf, Ralf Geiger, Markus Schnell, Matthias Hildenbrand, Tobias Chalupka
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Patent number: 11329703Abstract: A method of transmitting an amplitude shift keyed signal uses a multi-layered transmission over a plurality of transmit antennas with different precoding of different symbols for the respective layers. The method comprises obtaining a sequence of bits to be conveyed, keying the sequence of bits to a signal, precoding the signal to respective layer, and transmitting the precoded signal. A transmitter for transmitting the amplitude shift keyed signal, and a computer program for implementing the method are also disclosed.Type: GrantFiled: June 20, 2018Date of Patent: May 10, 2022Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Leif Wilhelmsson, Erik G. Larsson, Emil Björnson
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Patent number: 11329854Abstract: Provided are a data modulation method and apparatus, and a storage medium. The method includes: modulating a first data sequence to obtain a second data sequence; inserting a third data sequence into the second data sequence to obtain a fourth data sequence, where each of data, except for a first one and a last one in the fourth data sequence, of the third data sequence in the fourth data sequence satisfies that power of the each datum is equal to average power of two data adjacent to the each datum, and a phase of the each datum is within an angle between the two data adjacent to the each datum; and transmitting the fourth data sequence.Type: GrantFiled: July 26, 2019Date of Patent: May 10, 2022Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD.Inventors: Yu Xin, Luanjian Bian, Guanghui Yu, Jin Xu
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Patent number: 11310084Abstract: A physical layer transceiver for a wireline channel medium includes a host interface to a host device, a line interface to the medium, encoding/decoding circuitry for interfacing between the host device and the medium, and adaptive filter circuitry coupled to the encoding/decoding circuitry. The adaptive filter circuitry includes a plurality of filter taps, each corresponding to a segment of the medium, and capable of being powered ON and OFF separately from each other filter tap. Adaptive control circuitry can power ON a first subset, fewer than all the filter taps, corresponding to segments distributed along the medium, monitor powered-ON filter taps for occurrence of interference events, and upon detection of an interference event at a particular segment to which a particular powered-ON filter tap corresponds, power ON one or more additional filter taps corresponding to one or more segments in a vicinity of the particular segment.Type: GrantFiled: January 8, 2021Date of Patent: April 19, 2022Assignee: Marvell Asia Pte, Ltd.Inventors: David Shen, Oliver Weiss
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Patent number: 11303377Abstract: Techniques are described for carrier frequency offset (CFO) and channel estimation of orthogonal frequency division multiplexing (OFDM) transmissions over multiple-input multiple-output (MIMO) frequency-selective fading channels. A wireless transmitter forms blocks of symbols by inserting training symbols within two or more blocks of information-bearing symbols. The transmitter applies a hopping code to each of the blocks of symbols to insert a null subcarrier at a different position within each of the blocks of symbols, and a modulator outputs a wireless signal in accordance with the blocks of symbols. A receiver receives the wireless signal and estimates the CFO, and outputs a stream of estimated symbols based on the estimated CFO.Type: GrantFiled: May 18, 2020Date of Patent: April 12, 2022Assignee: Regents of the University of MinnesotaInventors: Georgios B. Giannakis, Xiaoli Ma
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Patent number: 11294032Abstract: A Doppler radar sensor with a power detector is disclosed. In the Doppler radar sensor, a power detector is provided to detect the power level of a received transmission signal, and a leakage and clutter canceler is provided to generate a cancellation signal according to the power level of the received transmission signal. The cancellation signal is used to cancel leakage and clutter in the received transmission signal such that object displacement in the received transmission signal can be identified.Type: GrantFiled: June 20, 2019Date of Patent: April 5, 2022Assignees: Sil Radar Technology Inc., National Cheng Kung University, NCKU Research and Devvelopment FoundationInventors: Huey-Ru Chuang, Chien-Chang Chou, Wen-Chian Lai
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Patent number: 11283494Abstract: A communication system where a central node (base-station or access point) communicates with multiple clients in its neighbourhood using transparent immediate beam-forming. Resource allocation and channel access is such that the central node does not necessarily know when each client starts its transmission. Receive beam-forming in such a system is not possible, as beam-forming coefficients for each client should be selected according to the particular channel realization from that client to the central node. Each client is detected early in its transmission cycle, based on either a signature that is part of the physical characteristics unique to that client, or based on a signature that is intentionally inserted in the clients' signal, and accordingly adjusts its beam-forming coefficients.Type: GrantFiled: September 14, 2020Date of Patent: March 22, 2022Inventor: Amir Keyvan Khandani
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Patent number: 11271571Abstract: Multi-mode non-return-to-zero (NRZ) and orthogonal differential vector signaling (ODVS) clock and data recovery circuits having configurable sub-channel multi-input comparator (MIC) circuits for forming a composite phase-error signal from a plurality of data-driven phase-error signals generated using phase detectors in a plurality of receivers configured as ODVS sub-channel MICs generating orthogonal sub-channel outputs in a first mode and a separate first and second data driven phase-error signal from two receivers of a plurality of receivers configured as NRZ receivers in a second mode.Type: GrantFiled: June 23, 2020Date of Patent: March 8, 2022Assignee: KANDOU LABS, S.A.Inventors: Armin Tajalli, Ali Hormati
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Patent number: 11245428Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for a DPD training procedure. A base station may transmit, for a plurality of iterations, a signal to at least one UE through a plurality of transmit chains and with application of DPD. The signal transmitted for each iteration may be transmitted with a BW that extends over a plurality of subcarriers and includes pilots extending over a BW subset that increases in subcarrier size for each iteration. The base station may receive, for each iteration, feedback from the at least one UE based on the transmitted signal and apply DPD to each of the plurality of transmit chains based on the feedback. Accordingly, the base station may transmit to one or more UEs through the plurality of transmit chains and with application of the DPD pilot signals that extend over the entire BW.Type: GrantFiled: March 12, 2020Date of Patent: February 8, 2022Assignee: QUALCOMM IncorporatedInventors: Igor Gutman, Michael Levitsky, Assaf Touboul, Ronen Shaked
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Patent number: 11190283Abstract: The application discloses a polar system and a delay difference calibration method. The polar system includes: a calibration signal generation unit, a CORDIC, a delay difference generation unit, a transmission unit, a receiving unit, a Fourier transformer and a calibration unit. The receiving unit is configured to receive a transmission signal from the transmission unit. The Fourier transformer is configured to compute a power of a receiving signal at a specific frequency. The calibration unit is configured to control the delay difference generation unit and determine a delay difference calibration value in a calibration mode.Type: GrantFiled: September 26, 2020Date of Patent: November 30, 2021Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventor: Tzu Ming Kao
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Patent number: 11169944Abstract: To perform communication more definitely and efficiently. Communication is performed by a master that is a communication device having a communication initiative and a slave that is a communication device that performs communication under control of the master. The master assigns a group address to an arbitrary slave of a plurality of slaves joining in a bus setting a plurality of arbitrary slaves to one group and setting the group to a destination, and when it is confirmed that at least one or more slaves exit from the bus of the slaves to which the group address is assigned, the group address assigned to the remaining slaves is reset. The present technology is, for example, applicable to a bus IF.Type: GrantFiled: June 7, 2018Date of Patent: November 9, 2021Assignee: Sony Semiconductor Solutions CorporationInventors: Hiroo Takahashi, Naohiro Koshisaka
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Patent number: 11152977Abstract: A method of sounding and feedback with channel quality information and reduced overhead is provided. A receiving station receives a sounding signal transmitted from an access point over multiple sub-channels of a wide channel in a wireless network. The receiving station detects channel quality based on the received sounding signal for each sub-channel. The receiving station then performs channel estimation based on the received sounding signal and thereby determining feedback information. Finally, the receiving station transmits a feedback message to the access point, the feedback message contains NULL feedback information, reduced feedback information, or channel integrity/quality indicators based on the channel quality information for each sub-channel. Based on the feedback message, the access point may repeat the sounding process, narrow the transmission bandwidth, or select only stations who have indicated uncorrupted channel sounding for MU-MMO transmission.Type: GrantFiled: February 24, 2020Date of Patent: October 19, 2021Assignee: MEDIATEK SINGAPORE PTE. LTD.Inventors: James June-Ming Wang, Jianhan Liu, Vishakan Ponnampalam, Chao-Chun Wang, Huanchun Ye
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Patent number: 11153775Abstract: A method for receiving a downlink signal from a base station (BS) by a user equipment (UE) in a wireless communication system is disclosed. The method includes receiving power multiplexing information from the BS, receiving a reference signal and the downlink signal from the BS, calculating reception power of an interference signal from reception power of the downlink signal, using the reference signal and the power multiplexing information, and acquiring a data signal of the UE by eliminating the reception power of the interference signal from the reception power of the downlink signal.Type: GrantFiled: January 14, 2016Date of Patent: October 19, 2021Assignee: LG ELECTRONICS INC.Inventors: Hyungtae Kim, Kijun Kim, Hanbyul Seo, Bonghoe Kim, Yunjung Yi
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Patent number: 11101918Abstract: Techniques are described for wireless communication at a wireless device. One method includes transmitting, during a TTI, a first message using a first MCS; and transmitting, during the TTI, a second message using a second MCS. The first message includes indications of a location, a heading, and a speed of the wireless device, and the second MCS is higher than the first MCS. Another method includes decoding a first message received during a TTI; performing a Doppler effect compensation for a second message based at least in part on the first message; and decoding the second message based at least in part on the Doppler effect compensation. The second message is also received during the TTI. The first message is decoded in accordance with a first MCS, and the second message is decoded in accordance with a second MCS, with the second MCS being higher than the first MCS.Type: GrantFiled: May 3, 2017Date of Patent: August 24, 2021Assignee: QUALCOMM IncorporatedInventors: Kapil Gulati, Shailesh Patil, Junyi Li, Sudhir Kumar Baghel, Zhibin Wu, Libin Jiang, Tien Viet Nguyen, Georgios Tsirtsis, Durga Prasad Malladi
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Patent number: 11075732Abstract: Techniques are provided for reference signal transmissions and transmit power ratio determination in non-orthogonal transmissions. A traffic-to-pilot power ratio (TPR) may be determined for a base layer for a non-orthogonal channel and another TPR may be determined for an enhancement layer for the non-orthogonal channel. Reference signal transmissions may be transmitted by a base station at a reference signal transmission power, and a user equipment (UE) may estimate channel quality for the base layer or the enhancement layer based at least in part on an energy level of the received reference signal and one or more of the first TPR or the second TPR. A base station may transmit TPR signaling that may indicate one or more TPR values for one or both of the base layer or enhancement layer.Type: GrantFiled: August 19, 2019Date of Patent: July 27, 2021Assignee: Qualcomm IncorporatedInventors: Jing Sun, Tao Luo, Hao Xu, Yongbin Wei, Durga Prasad Malladi
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Patent number: 11050479Abstract: A first communication device for communicating with a second communication device over a link that is utilized at the substantially same time and with the substantially same frequency resource by a pair of further communication devices. The first communication device comprises one or more antenna arrays with which beamforming can be performed, a controller configured to apply beamformers to control beamforming by the one or more antenna arrays, and circuitry configured to determine whether at least one of the beamformers satisfies an interference condition such that a level of interference leaked to the further communication devices by the first communication device is below a defined threshold, and if available, select the at least one beamformer for communicating with the second communication device.Type: GrantFiled: August 11, 2017Date of Patent: June 29, 2021Assignee: SONY CORPORATIONInventors: Dana Ciochina, Thomas Handte, Nabil Sven Loghin, Felix Fellhauer
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Patent number: 11032822Abstract: A base station may maintain multiple beam pair links, with one being actively used for communication. The active beam pair may become blocked. Accordingly, it may be necessary to switch to another beam pair. The apparatus may be an apparatus for wireless communication. The apparatus for wireless communication may include a memory and at least one processor coupled to the memory. The at least one processor is configured to determine a set of active beam pairs including at least a first beam pair and a second beam pair and select the first beam pair. The at least one processor is also configured to predict that the first beam pair is blocked, the prediction based on an expiration of a timer and sweep through the set of active beam pairs based on predicting that the first beam pair is blocked.Type: GrantFiled: March 21, 2018Date of Patent: June 8, 2021Assignee: QUALCOMM IncorporatedInventors: Jing Sun, Tao Luo, Makesh Pravin John Wilson, Xiao Feng Wang
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Channel state information feedback and receiving method, transmit-end device, and receive-end device
Patent number: 10985824Abstract: A channel state information feedback method includes: generating, by a transmit-end device, codebook indication information of K transport layers, where K is an integer greater than or equal to 1; and for each of at least one of the K transport layers, the codebook indication information includes narrowband superposition coefficients of N sub-bands of the layer, where a quantity of the narrowband superposition coefficients of the N sub-bands is less than R(L?1)*N, N is an integer greater than or equal to 2, R is a quantity of polarization directions and R is an integer greater than or equal to 1, and L is a quantity of pieces of beam information used by the K transport layers and L is an integer greater than or equal to 2; and sending, by the transmit-end device, the codebook indication information.Type: GrantFiled: March 25, 2020Date of Patent: April 20, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Huangping Jin, Peng Jiang, Wei Han, Peng Shang -
Patent number: 10985955Abstract: The invention provides a method for automatically identifying a modulation mode for a digital communication signal. The method comprises the following steps of: S1: preprocessing a training digital modulation signal; S2: extracting a characteristic value of the training digital modulation signal; S3: constructing a strong classifier by Bagging learning; and S4: preprocessing a modulation signal to be tested and extracting a corresponding characteristic parameter, and then inputting the characteristic parameter into the strong classifier in the S3 to classify and identify the modulation signal. According to the method, by processing all characteristic values in parallel, a success rate of identification has little to do with an identification performance of a single characteristic parameter and is mainly related to an overall performance, so that the identification to the modulation mode has the advantages of fast identification speed and high success rate of identification.Type: GrantFiled: November 30, 2017Date of Patent: April 20, 2021Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGYInventors: Fangjiong Chen, Wensong Zhang, Zeng Hu, Fei Ji, Hua Yu
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Patent number: 10986644Abstract: Aspects of the present disclosure provide for beam management in wireless communication systems. In some examples, beam angle information (e.g., angles of arrival/departure) may be utilized to select one or more serving downlink beams for communication between a scheduling entity and a scheduled entity. The beam angle information may further be utilized to facilitate additional operations within a backhaul network, such as wireless node locating, obstacle locating, system mapping within the network topology, beam determination and beam sweeping configuration, and mobility management among wireless nodes of a backhaul network. In other examples, aperiodic uplink beam measurements may be triggered based on downlink beam measurement reports and/or in response to a request from a scheduled entity. The scheduling entity may then jointly select uplink and downlink beams based on both the received downlink beam measurement report and uplink beam measurements.Type: GrantFiled: October 3, 2018Date of Patent: April 20, 2021Assignee: Qualcomm IncorporatedInventors: Jianghong Luo, Navid Abedini, Junyi Li, Sundar Subramanian, Juergen Cezanne, Muhammad Nazmul Islam
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Patent number: 10972234Abstract: A network node device includes a radio transceiver configured to receive a data sequence from a plurality of user equipments (UEs) over first and second sets of resource elements, wherein the first set of resource elements is mapped non-orthogonally and the second set is mapped orthogonally. The network node device further comprises a processor configured to determine channel vectors based at least in part on the data sequence received over the first set of resource elements or over the second set of resource elements, and to utilize the data sequence as received over the second set of resource elements to associate the determined channel vectors with each of the plurality of UEs.Type: GrantFiled: May 10, 2019Date of Patent: April 6, 2021Assignee: Huawei Technologies Co., Ltd.Inventor: Majid Nasiri Khormuji
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Patent number: 10965508Abstract: An apparatus and method for transmission of a single-carrier waveform from multiple transmit antennas including both a reference signal and data in a discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) symbol.Type: GrantFiled: July 25, 2019Date of Patent: March 30, 2021Inventors: Sony Akkarakaran, Xiaoxia Zhang, Tao Luo
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Patent number: 10945272Abstract: A method performed by a wireless device (121, 122) for determining Channel State Information, CSI, estimates to be transmitted in a CSI report for the wireless device (121, 122) to a network node (110) in a radio communications network (100) is provided. The wireless device (121, 122) receives a message comprising an indication to use CSI estimates corresponding to a determined period of time. In response to said message, the wireless device (121, 122) determines CSI estimates to be used in the CSI report to the network node (110) according to the received indication. A wireless device (121, 122) is also described. A network node (110) and method therein for controlling CSI estimates transmitted by one or more wireless devices (121, 122) in CSI reports to the network node (110) in a radio communications network (100) are also provided.Type: GrantFiled: April 24, 2018Date of Patent: March 9, 2021Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Mattias Frenne, Qiang Zhang, Henrik Sahlin, Stefan Parkvall, Håkan Andersson, Johan Furuskog
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Patent number: 10943524Abstract: A device for generating restoration data by descrambling scramble data includes a linear feedback shift register configured to receive a first clock including a plurality of edges and sequentially generate a plurality of seeds including first to N?1th seeds (where N is a natural number of 2 or greater) respectively corresponding to first to N?1th edges among the plurality of edges, a seed calculator configured to calculate an Nth seed corresponding to an Nth edge among the plurality of edges by using the first seed, and a descrambler configured to descramble the scramble data by using the plurality of seeds generated by the linear feedback shift register and the Nth seed calculated by the seed calculator. The linear feedback shift register is further configured to generate an N+1th seed by using the Nth seed.Type: GrantFiled: May 31, 2019Date of Patent: March 9, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong-Chul Choi, Sung-Ho Kang, June-Hee Lee, Han-Kyul Lim, Byung-Wook Cho
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Patent number: 10944440Abstract: A method of processing a radio frequency signal includes: receiving the radio frequency signal at an antenna of a receiver device; processing, by a radio frequency front-end device, the radio frequency signal; converting, by an analog-to-digital converter, the analog signal to a digital signal; receiving, by a neural network, the digital signal; and processing, by the neural network, the digital signal to produce an output.Type: GrantFiled: April 11, 2018Date of Patent: March 9, 2021
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Patent number: 10938610Abstract: A method for transmitting a phase noise compensation reference signal, a transmission device and a reception device are provided. The method includes: determining one or more configurations from N configurations for a transmission resource of the phase noise compensation reference signal; and transmitting the phase noise compensation reference signal according to the one or more configurations. The N configurations have different time-domain densities or different frequency-domain densities, or a plurality of configurations of the N configurations has a same time-domain density and a same frequency-domain density, where N is an integer greater than or equal to 2.Type: GrantFiled: July 24, 2017Date of Patent: March 2, 2021Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGYInventors: Hui Li, Qiubin Gao, Xin Su, Runhua Chen, Rakesh Tamrakar, Qiuping Huang, Chuanjun Li, Mengjun Wang
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Patent number: 10931324Abstract: Techniques for a communication device with a receiver to dynamically control the gain of an analog front end of the receiver. Rather than having a single circuit path in the analog front end, the analog front end includes multiple circuit paths, and dynamically selects one of the circuit paths that optimizes the gain of the analog front end. For example, an amplifier circuit path may be selected to amplify the power level of the signal received from the antenna. However, the analog front end may further include an attenuator circuit path that includes an attenuator to reduce the power level of a high-power input signal received from the antenna to ensure that the high-power signal is attenuated below a power level associated with saturation of the receiver.Type: GrantFiled: April 17, 2020Date of Patent: February 23, 2021Assignee: Amazon Technologies, Inc.Inventors: Ravi Ichapurapu, Basak Oyman
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Patent number: 10931427Abstract: A network node receives a first signal in a first grant-free transmission from a client device, wherein the first signal comprises data having a first redundancy version and having a corresponding first transmission attempt number, in a first resource unit; determines an identity of the client device based on the first signal, establishes that a data decoding error associated with the first grant-free transmission has occurred if the data in the first signal cannot be decoded correctly; receives a second signal in a second transmission from the client device, wherein the second signal comprises the data having a second redundancy version and having a corresponding second transmission attempt number, in a second resource unit; and establishes that a data decoding error associated with the second transmission has occurred if the data in the second signal cannot be decoded correctly.Type: GrantFiled: March 28, 2019Date of Patent: February 23, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Chaitanya Tumula, Neng Wang, Sergei Semenov
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Patent number: 10909964Abstract: A person support apparatus, such as a bed, cot, stretcher, or the like, includes an active noise cancellation device configured to generate a noise cancelling sound wave that is designed to cancel a noise sound wave. The active noise cancellation device may include speakers and a microphone. In other embodiments, the person support apparatus includes a sound emitting component and a transmitter adapted to send out a notification signal prior to activation of the sound emitting component. The notification signal provides information about a characteristic of the sound to be emitted by the sound emitting device. The recipient of the notification signal may then use the signal to cancel the sound that is to be emitted. In some embodiments, the person support apparatus acts as a conduit for notification signals of upcoming sounds, receiving and forwarding such notification signals from and to other devices.Type: GrantFiled: June 26, 2019Date of Patent: February 2, 2021Assignee: Stryker CorporationInventors: Krishna Sandeep Bhimavarapu, Christopher Ryan Sweeney, William Dwight Childs
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Patent number: 10904065Abstract: Disclosed are a method and a device for performing sidelink communication in a wireless communication system. Specifically, the method performed by a first terminal may comprise a step of transmitting a specific sidelink message including at least one piece of information among first information and second information to a second terminal, wherein: a transmission period of the first information is set to be longer than a transmission period of the second information; a first modulation order to be applied to the first information and a second modulation order of the second information are set differently from each other; and when the first information and the second information are concurrently transmitted through the specific sidelink message, modulation symbols of the first information and modulation symbols of the second information are mapped by considering a requirement noise ratio for each of the first modulation order and the second modulation order.Type: GrantFiled: September 7, 2018Date of Patent: January 26, 2021Assignee: LG ELECTRONICS INC.Inventors: Myoungseob Kim, Hanbyul Seo
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Patent number: 10897279Abstract: A receiver includes a first T-coil circuit at an input of the receiver and configured to receive an input signal, a termination impedance coupled to the first T-coil circuit and configured to match an impedance of a transmission line coupled to the first T-coil circuit, and an amplifier including a first input and a second input and configured to amplify a differential signal at the first and second inputs, a calibration switch coupled to the amplifier and configured to selectively electrically connect or disconnect the first and second inputs of the amplifier, and a first receive switch configured to selectively electrically connect or disconnect a center node of the first T-coil circuit and the amplifier.Type: GrantFiled: May 13, 2020Date of Patent: January 19, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Xiong Liu, Hiep Pham