Patents Examined by Fitwi Y Hailegiorgis
  • Patent number: 10735059
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. A first wireless communication device determines a co-phasing factor between at least two transmit beams transmitted by a second wireless communication device. The co-phasing factor is determined for generation of at least one co-phased beam by the second wireless communication device. The first wireless communication device transmits information to the second wireless communication device identifying the co-phasing factor. Numerous other aspects are provided.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: August 4, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Vasanthan Raghavan, Junyi Li, Juergen Cezanne
  • Patent number: 10735055
    Abstract: Embodiments of the present invention provide a method and device for reducing complexity of channel quantization.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: August 4, 2020
    Assignee: ZTE CORPORATION
    Inventors: Yijian Chen, Yu Ngok Li, Zhaohua Lu, Huahua Xiao, Jianxing Cai, Hao Wu, Yong Li
  • Patent number: 10728853
    Abstract: Methods and systems for waking up a wireless receiving device having a wake-up radio (WUR) circuit. A low-power wake-up signal is transmitted, comprising a wake-up frame (WUF) including having a portion that is subjected to spectrum spreading and transmitted using a single carrier. The wake-up signal is processed by the receiving using non-coherent detection.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: July 28, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jung Hoon Suh, Osama Aboul-Magd, Kwok Shum Au, Yan Xin
  • Patent number: 10720949
    Abstract: Described is a multi-input cognitive signal processor (CSP) for estimating time-difference-of-arrival (TDOA) of incoming signals. The multi-input CSP receives a mixture of input signals from an antenna a and an antenna b. The multi-input CSP predicts and temporally de-noises input signals a and b received from antennas a and b, respectively, using an input corresponding to each input signal, resulting in de-noised state vectors for input signals a and b. Using the de-noised state vectors for input signals a and b, cross-predicting and spatially de-noising the other of the de-noised state vectors for input signals a and b. TDOA values of signal pulses to each of antennas a and b are estimated and converted into estimated angles of arrival for each signal pulse.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: July 21, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Shankar R. Rao, Peter Petre
  • Patent number: 10720954
    Abstract: An antenna switching system comprises an antenna switch module comprising a switch network that includes RF switches connectable to signal receive and transmit paths, and a switch control unit. First and second receiver/transmitter units are connected to the antenna switch module. A single antenna is connected to the receiver/transmitter units through the antenna switch module. The switch control unit receives mutual suppression signal pulses routed from the receiver/transmitter units. The mutual suppression signal pulses are decoded by the switch control unit to generate control signals to open and close the RF switches as needed for a signal transmit operation mode or a signal receive operation mode. The signal transmit operation mode comprises a first transmit mode in which either of the receiver/transmitter units transmits RF signals along the transmit path, or a second transmit mode in which both of the receiver/transmitter units transmit RF signals along the transmit path.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: July 21, 2020
    Assignee: Honeywell International Inc.
    Inventors: Robert S. Doyle, Steven D. Neuharth
  • Patent number: 10720973
    Abstract: Provided are a method for transreceiving a beam reference signal or a beam refinement reference signal and transreceiving feedback information for same between a terminal and a base station in an ultra-high frequency mobile communication system, and to an apparatus for same. The method may include identifying a preferable symbol based on reference signal received power or reference signal received quality in a subframe in which the beam reference signal is received and transmitting radio resource management information or channel status information for an antenna port or an antenna array to the base station with respect to the preferable symbol.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: July 21, 2020
    Assignee: KT CORPORATION
    Inventors: HyoJin Lee, SungHyun Kim, Young-Seok Kim
  • Patent number: 10715225
    Abstract: A method implemented in a first radio device (UE) for quality reporting of a radio channel (2) comprising: Determining a condition of the radio channel and entering a monitoring phase if the condition of the radio channel exhibits an invariance of statistics of the radio channel (810, 811), Receiving at least one data symbol via said radio channel during the monitoring phase (812), Determining a statistical characterization of the radio channel based on the received data symbol (813), and Reporting a quality of the radio channel (2) to a second radio device if the statistical characterization exceeds a predetermined threshold (814).
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: July 14, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Martin Hessler, Emil Björnson, Erik G. Larsson, Reza Moosavi
  • Patent number: 10715203
    Abstract: The present invention discloses a wireless transceiver capable of offsetting internal signal leakage. The wireless transceiver includes a transmission circuit, a reception circuit and a calibration circuit. The calibration circuit generates a first estimation signal according to the difference between a test signal and a reception digital signal passing through a standard path, generates a second estimation signal according to the difference between the test signal and a reception digital signal passing through a leakage path, and then determines N coefficient(s) of a calibration filter according to the difference between the first estimation signal and the second estimation signal. Therefore, the calibration circuit including the calibration filter can output a calibration signal to the reception circuit to offset at least a part of the signal leakage from the transmission circuit to the reception circuit.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: July 14, 2020
    Assignee: REALTEK SEMICONDUCTOR CORPORATION
    Inventor: Chih-Chieh Wang
  • Patent number: 10712425
    Abstract: Described is a system for signal denoising using a cognitive signal processor having a time-varying reservoir. The system receives a noisy input signal of a time-series of data points from a mixture of waveform signals. The noisy input signal is linearly mapped into the time-varying reservoir. A high-dimensional state-space representation of the mixture of waveform signals is generated by combining the noisy input signal with a plurality of reservoir states. The system then generates a denoised signal corresponding to the noisy input signal.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: July 14, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Shankar R. Rao, Peter Petre, Bryan H. Fong
  • Patent number: 10715195
    Abstract: The disclosure relates to technology for an apparatus having a current conveyer comprising a first stage having a first differential input, and a second stage having a second differential input. The first and second stages are configured to operate in a push-pull mode to provide an output signal at a current conveyer output between the first stage and the second stage. The apparatus has a first frequency mixer configured to generate a first mixer signal based on an input signal and an oscillator signal having a first frequency. The first frequency mixer is configured to provide the first mixer signal to the first differential input. The apparatus has a second frequency mixer configured to generate a second mixer signal based on the input signal and a second oscillator signal having the first frequency. The second frequency mixer is configured to provide the second mixer signal to the second differential input.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: July 14, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Matthew Richard Miller, Brian Creed, Terrie McCain
  • Patent number: 10715374
    Abstract: A Long Range (LoRa) communication system with an improved data rate and method thereof are provided. When a packet to be transmitted is received, a transmission device determines a transmission scheme. When the determined transmission scheme is an enhanced transmission scheme, the transmission device transmits a preamble signal indicating that a packet is to be transmitted using the enhanced transmission scheme, converts n-th data of the packet to an up-chirp signal, converts (n+1)-th data of the packet to a down-chirp signal, generates a transmission signal by adding the n-th data converted to the up-chirp signal and the (n+1)-th data converted to the down-chirp signal, and transmits the transmission signal to a reception device.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: July 14, 2020
    Assignee: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION
    Inventors: Young-Hwan Yoo, Sungryul Kim
  • Patent number: 10707913
    Abstract: A radio frequency system. In some embodiments, the system includes a one-bit receiver, and the one-bit receiver includes a digital pseudo random noise generator, a one-bit digital to analog converter, a power combiner, a one-bit analog to digital converter, and a digital subtraction circuit. The digital pseudo random noise generator produces a signal added to the received signal before analog to digital conversion. After analog to digital conversion, a delayed version of the dither is subtracted from the digital signal.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: July 7, 2020
    Assignee: Raytheon Company
    Inventors: Harry B. Marr, Daniel Thompson, Ian S. Robinson
  • Patent number: 10707999
    Abstract: The disclosed systems, structures, and methods are directed to a wireless local area network (WLAN) transmission architecture and transmitting methodology that combines space-time block code (STBC) encoding techniques with semi-orthogonal multiple access (SOMA) schemes to improve throughput rate performance for lower signal strength data. The transmission architecture and method includes a data processing module that is configured to digitally process and format data produced by two wireless stations. A SOMA constellation quadrature encoding module operates to apply quadrature-based modulation to the processed data and map the data to a modulation constellation based on data signal strength and data bit reliability. An STBC encoding module is configured to block encode the SOMA modulated data with orthogonal codes to produce STBC-based SOMA-symbol data having time and space diversity properties that improve throughput performance at lower signal strength levels.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: July 7, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Jia Jia, Alireza Bayesteh, Jung Hoon Suh, Osama Aboul-Magd, Kwok Shum Au
  • Patent number: 10707975
    Abstract: A signal source association method and receiver. A receiver can be used to detect a plurality of signals transmitted from a plurality of transmission sources. The receiver can determine amplitude and phase information for a plurality of frequency components of each of the plurality of signals. The receiver can also determine a set of comparison values by comparing the respective amplitude and phase information from one or more pairs of the plurality of signals. Finally, the receiver can associate one of the signals with one of the plurality of transmission sources using the set of comparison values. The comparison values can comprise Stokes parameters and the one or more pairs of the plurality of signals can comprise a pair of orthogonally polarized signals or a pair of signals detected from spatially-separated antennas.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: July 7, 2020
    Assignee: UNIVERSITY OF NOTRE DAME DU LAC
    Inventors: Thomas G. Pratt, Robert Daniel Kossler, Jeffrey G. Mueller, Joseph Lawrence Loof
  • Patent number: 10708102
    Abstract: A simultaneous wireless information and power transmission method includes: transmitting an energy transfer signal comprising a peak-to-average power ratio (PAPR) corresponding to information to be transmitted at a first side; measuring the PAPR by receiving the energy transfer signal at a second side; and recovering the information from the measured PAPR at the second side.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: July 7, 2020
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Dong In Kim, Jong Ho Moon, Jong Jin Park, Kang Yoon Lee
  • Patent number: 10708101
    Abstract: A transmitter transmits payload data using Orthogonal Frequency Division Multiplexed (OFDM) symbols. The transmitter comprises a frame builder configured to receive the payload data to be transmitted and to receive first signalling data for use in detecting and recovering the payload data at a receiver, and to form the payload data and the first signalling data into frames for transmission, the first signalling data forming a part of the frames with the payload data. A modulator is configured to modulate a first OFDM symbol with the first signalling data and to modulate one or more second OFDM symbols with the payload data. A signature sequence processor provides a signature sequence, a combiner combines the signature sequence with the first OFDM symbol, and a transmission unit transmits the first and second OFDM symbols.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: July 7, 2020
    Assignee: SATURN LICENSING LLC
    Inventors: Samuel Asangbeng Atungsiri, Jan Zoellner
  • Patent number: 10707942
    Abstract: An access point of a wireless communication network forms beams by applying a weightset for a beamforming weights matrix to signal streams. The Equivalent Isotropic Radiated Power (EIRP) that is emitted from an array of antenna elements at the access point is controlled by calibrating the transmission phase and gain of a respective transmit chain for each antenna element, providing a polar radiation model for an antenna element of the array, and determining a weightset for the weighting matrix subject to a constraint that a maximum total EIRP for the beams in combination in any azimuth direction is maintained within a predetermined EIRP limit, based at least on a spatial separation of the antenna elements, the polar radiation model and the calibrated transmission phase and gain of each respective transmit chain.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: July 7, 2020
    Assignee: CAMBIUM NETWORKS LTD
    Inventor: Peter Strong
  • Patent number: 10708093
    Abstract: Some embodiments include apparatus and methods using a first latch in a decision feedback equalizer (DFE), a second latch in the DFE, and circuitry coupled to the first and second latches. The second latch includes a first input node coupled to an output node of the first latch. The circuitry includes a first input node coupled to the first output node, a second input node coupled to a second output node of the second latch, and an output node to provide information having a first output value based on first values of information at the first and second output nodes and a second output value based on second values of information at the first and second output nodes.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: July 7, 2020
    Assignee: Intel Corporation
    Inventors: Shenggao Li, Ji Chen
  • Patent number: 10707918
    Abstract: Provided are methods and systems for on-ground communication using an electrical power distribution system of an aircraft. Specifically, two broadband over power line (BPL) communication modules are communicatively coupled to an electrical power distribution system of an aircraft at different locations. A communication-initiation request is transmitted between these modules and, in some examples, is used to establish communication between the modules. In more specific examples, the receiving module determines received parameters of the communication-initiation request, which depend, at least in part, on characteristics of the electrical power distribution system. The received parameters are compared with expected parameters, and an operating indication of the electrical power distribution system is generated based on this comparison. In some examples, the operating indication is used to verify configuration of the electrical power distribution system (e.g., during aircraft assembly), service requirements (e.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: July 7, 2020
    Assignee: The Boeing Company
    Inventors: Timothy M. Mitchell, Tuan A. Nguyen, David S. Mier, Tri M. Phan, Anil Kumar, Robert M. Kelly
  • Patent number: 10708113
    Abstract: A digital power amplification circuit includes a decoding block configured to receive a first stream of digital codes and to derive from the first stream a second stream of digital codes, the decoding block including a decoder configured to decode the digital codes of the first stream and the second stream at a first clock rate, a main digital power amplifier configured to receive the decoded digital codes of the first stream, an upsampler configured to upsample the decoded digital codes of the second stream to a second clock rate that is greater than the first clock rate, an auxiliary digital power amplifier configured to receive the decoded digital codes of the second stream upsampled to the second clock rate, and a summer configured to sum (i) a main output signal of the main digital power amplifier and (ii) an auxiliary output signal of the auxiliary digital power amplifier.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: July 7, 2020
    Assignee: STICHTING IMEC NEDERLAND
    Inventor: Ao Ba