Patents Examined by Lihong Yu
  • Patent number: 10855356
    Abstract: Apparatuses, methods, and systems are disclosed for preparing channel state information (“CSI”). One apparatus includes a processor and a transceiver configured to communicate with a base unit over a RAN using spatial multiplexing, wherein multiple transmission layers are transmitted at a time, each transmission layer comprising multiple beams. The processor identifies a set of non-zero amplitude parameters and a set of zero amplitude parameters over the set of layers. The processor computes a number of non-zero amplitude parameters and determines an indication of the number of non-zero amplitude parameters. The processor determines the location of zero amplitude parameters to generate a set of location bits. The processor prepares CSI that includes the indication of the number of non-zero amplitude parameters and the set of location bits. The transceiver transmits the CSI to the base unit.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: December 1, 2020
    Assignee: Motorola Mobility LLC
    Inventors: Udar Mittal, Tyler Brown, Khalid Zeineddine, Jiho Song
  • Patent number: 10841072
    Abstract: An apparatus for providing fast-settling quadrature detection and correction includes: a quadrature correction circuit that receives four quadrature clock signals; a quadrature detector that selects two clock signals among the four quadrature clock signals; and a phase digitizer that generates a digital code indicating a phase difference between the two clock signals. The quadrature correction circuit adjusts a phase between the two clock signals using the digital code.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: November 17, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Zhiqiang Huang, Hiep Pham, Chih-Wei Yao
  • Patent number: 10819412
    Abstract: A method for transmitting and receiving a signal based on a codebook in a multi-antenna wireless communication and a device therefor are disclosed. Specifically, a method for transmitting and receiving a signal by a UE on the basis of a codebook in a 2-dimensional multi-antenna wireless communication system includes: receiving a channel state information-reference signal (CSI-RS) from an eNB through multiple antenna ports; and reporting channel state information to the eNB, wherein the channel state information includes a precoding matrix indicator (PMI), the PMI includes a first PMI for selecting a precoding matrix set from the codebook and a second PMI for selecting a precoding matrix from the precoding matrix set, pairs of indexes of a first dimension and indexes of a second dimension of precoding matrices belonging to the precoding matrix set are (x,y), (x+2,y), (x,y+1) and (x+1,y+1), and x and y are integers which are not negative numbers.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: October 27, 2020
    Inventors: Haewook Park, Kijun Kim, Jonghyun Park
  • Patent number: 10804985
    Abstract: The present disclosure relates to an electronic device and communication method. The electronic device comprising a RF link unit radiating a data stream in form of electromagnetic wave radiation onto a phase shifter; a processing circuitry configured to determine an analog precoding matrix; phase shifters, each of which for performing analog precoding on the received signal of the electromagnetic wave radiation according to the determined analog precoding matrix, and an antenna array, each of antenna elements of which transmits the analog precoded signal, wherein the number of the phase shifters is the same as the number of the antenna elements of the antenna array, and the phase shifters and the antenna elements are in one-to-one correspondence.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: October 13, 2020
    Inventors: Ning Ge, Zhengyi Zhou, Peiyao Zhao, Zhaocheng Wang, Jianfei Cao
  • Patent number: 10790871
    Abstract: According to an embodiment there is provided a method of radio resource allocation performed in a gateway or network server communicatively connected to a plurality of wireless nodes. The method comprises computing, for each spreading factor out of a number of spreading factors, a probability of successful receipt of an uplink communication from a wireless node from the plurality of wireless nodes based on spreading factor settings of the plurality of wireless nodes, determining, for a given link level budget, a spreading factor that provides a maximum likelihood of successfully completing uplink communications and determining, for the determined spreading factor, a transmission power that provides the given link level budget.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: September 29, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shengyang Li, Usman Raza, Aftab Khan
  • Patent number: 10790892
    Abstract: Certain aspects of the present disclosure provide techniques for rate matching PDSCH around NZP CSI RS transmissions in multi-TRP scenarios. In some cases, a network entity may signal a rate matching behavior to a user equipment (UE) for processing a physical downlink shared channel (PDSCH) configured with a first quasi co-location association and transmitted from a first transmission reception point (TRP) that potentially collides with one or more types of non-zero power (NZP) reference signals (RS) configured with a second quasi co-location association and transmitted from a second TRP using one or more resource sets.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: September 29, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Alexandros Manolakos, Huilin Xu, Wanshi Chen, Heechoon Lee, Peter Gaal
  • Patent number: 10778294
    Abstract: Embodiments of the present invention provide a channel state information feedback method, a terminal device, and a network device. The method includes: sending, by a terminal device, matrix information of a dimension reduction matrix to a network device, where a first dimension of the dimension reduction matrix is the same as a quantity of transmit antenna ports of the network device, and a second dimension of the dimension reduction matrix is less than the first dimension of the dimension reduction matrix; and sending, by the terminal device, vector information of an eigenvector of a downlink equivalent channel to the network device, where the eigenvector of the downlink equivalent channel is obtained based on the dimension reduction matrix.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: September 15, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Ye Yang, Bailong Su
  • Patent number: 10778483
    Abstract: A device for operating an electrical consumer, in particular a solenoid valve, including at least one first circuit which encompasses an activatable first switch and a first freewheeling unit connected or connectable in parallel to the consumer, and including a control unit which is designed for activating the first switch in order to energize the consumer with a predefinable electric current with the aid of pulse width modulation. It is provided that the circuit encompasses at least one second switch and one second freewheeling unit, which is connected or connectable in parallel to the consumer, and that the control unit is designed for activating the second switch in a phase-shifted manner with respect to the first switch in order to energize the consumer.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: September 15, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Volker Weeber, Ruben Obenland, Stefan Hoess
  • Patent number: 10771939
    Abstract: Systems, methods, and apparatus are provided for enabling orientation of directional antennas even when one or more of the directional antennas are moving. Position information for each directional antenna is transmitted using an omnidirectional antenna transmitting at a low bandwidth and a low power. The position information of the directional antennas is used to orient the directional antennas so that a high bandwidth, low power wireless connection can be enabled and/or maintained between the directional antennas. The position information is periodically transmitted and the orientation of the directional antennas is updated as one or more of the directional antennas move so that the wireless connection between the directional antennas is maintained.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: September 8, 2020
    Assignee: Amazon Technologies, Inc
    Inventors: Daniel Buchmueller, Ronald Joseph Degges, Jr., Jin Dong Kim, Gur Kimchi, Sang Eun Lee, Subram Narasimhan, Koohyun Um
  • Patent number: 10761123
    Abstract: An apparatus and a method for use in an electric circuit. The apparatus includes a sampling module arranged to obtain an approximation of a voltage-current characteristic of at least one electrical circuit component of the electric circuit subjected to an excitation, wherein each of the at least one electrical circuit component is represented by a constant phase element in an equivalent circuit of the electric circuit; and a processing module arranged to estimate a time-domain voltage response and/or a time-domain current response based on the approximation of the voltage-current characteristic under the excitation applied to the electric circuit.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: September 1, 2020
    Assignee: City University of Hong Kong
    Inventors: Shu Hung Henry Chung, Chun Sing Cheng, Wing Hong Lau
  • Patent number: 10764097
    Abstract: A method includes, at a frequency shift keying (FSK) demodulator, determining a likelihood of a symbol having a first symbol value or a second symbol value, using the likelihood of the symbol to select either the first symbol value or the second symbol value for the symbol, the first symbol value or the second symbol value that is selected being a selected symbol value, selecting a frequency error from a first frequency error or a second frequency error, and using a down-mixer and the frequency error to correct a frequency drift associated with a future selected symbol value.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: September 1, 2020
    Assignee: NXP USA, Inc.
    Inventor: Claudio Gustavo Rey
  • Patent number: 10764093
    Abstract: Described are methods and circuits for margin testing digital receivers. These methods and circuits prevent margins from collapsing in response to erroneously received data, and can thus be used in receivers that employ historical data to reduce intersymbol interference (ISI). Some embodiments allows feedback timing to be adjusted independent of the sample timing to measure the effects of some forms of phase misalignment and jitter.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: September 1, 2020
    Assignee: Rambus Inc.
    Inventors: Brian S. Leibowitz, Bruno W. Garlepp
  • Patent number: 10756779
    Abstract: Methods and systems are disclosed for MIMO power line communication signal coupling combined with zero cross detector analog front end and may include a circuit for powerline communication including a coupling circuit and zero cross detector, where both are coupled to an input transformer that receives an alternating current (AC) power signal and radio frequency (RF) signals from line and neutral power lines via input capacitors. The coupling circuit may include a plurality of powerline communication receivers, a that receives a first RF signal via a secondary coil of the input transformer and a second that receives a second RF signal via a center terminal of a capacitor pair coupled to primary coils of the input transformer. The second receiver may comprise a second transformer. A center tap of the second transformer may be coupled to ground via an inductor. A third receiver may generate a third RF signal via the inductor.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: August 25, 2020
    Assignee: Maxlinear, Inc.
    Inventor: Antonio Jimenez De Parga Bernal
  • Patent number: 10749567
    Abstract: A method for the reception of a frequency hopped direct sequence spread spectrum signal includes acquiring the signal by splitting the received signal into a plurality of processing sub-channels, each corresponding to one or more hop frequencies; and within each sub-channel: i) subtracting any sub-carrier frequency from the received signal; ii) filtering the signal from (i) using a chip-matched filter; iii) selecting a sub-set of samples from the filtered signal; iv) correlating the sampled signal from step (iii) with a known reference signal to produce at least one correlator output. The output(s) from each sub-channel are provided to an input of a corresponding one or more common discrete time Fourier transforms (DTFT), and an output therefrom having a peak above a predetermined threshold is selected for further processing in the receiver. The method is a less expensive way of tracking the signal and can demodulate appropriately modulated signals.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: August 18, 2020
    Inventor: Malcolm David Macleod
  • Patent number: 10742227
    Abstract: Describe is a buffer which comprises: a differential source follower coupled to a first input and a second input; first and second current steering devices coupled to the differential source follower; and a current source coupled to the first and second current steering devices. The buffer provides high supply noise rejection ratio (PSRR) together with high bandwidth.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: August 11, 2020
    Assignee: Intel Corporation
    Inventors: Yitzhak Elhanan Schifmann, Yoel Krupnik, Ariel Cohen
  • Patent number: 10742298
    Abstract: There is provided mechanisms for beam management. A method is performed by a radio transceiver device. The method comprises performing a beam management procedure by simultaneously transmitting a first reference signal in a first set of beams and a second reference signal in a second set of beams. The first set of beams is transmitted at a first antenna array of the radio transceiver device and in a first polarization. The second set of beams is transmitted at a second antenna array of the radio transceiver device and in a second polarization.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: August 11, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Andreas Nilsson, Fredrik Athley, Sven Petersson
  • Patent number: 10735111
    Abstract: A method for determining a distance to a passive intermodulation source in a device under test, the method comprising transmitting at least two signals with respective different frequencies to the device under test, receiving a complex response signal from the device under test, the complex response signal comprising a passive intermodulation of the at least two signals, generating an autocorrelation matrix using the complex response signal, the autocorrelation matrix representing power information of the complex response signal, decomposing the complex response signal, using the autocorrelation matrix, into a signal component part and a noise component part and determining a distance to the passive intermodulation source in the device under test using the noise and/or signal component part.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: August 4, 2020
    Inventors: Jean-Pierre Harel, Gilles Duteil, Patrick Lecam, Franck Colombel, Stéphane Avrillon
  • Patent number: 10728913
    Abstract: Wireless communications systems and methods related to serving user equipment devices (UEs) using multi-transmission/reception point (TRP) techniques with dynamic varying TRP clusters are provided. A wireless communication device receives, from a first group of one or more TRPs, a first signal during a first time period. The wireless communication device receives, from a second group of one or more TRPs, a second signal during a second time period, wherein at least one TRP in the second group is not in the first group. The first signal may include a first transport block (TB) and the second signal may include a second TB different from the first TB. Alternatively, the first signal may include a first portion of a TB and the second signal includes a second portion of the TB different from the first portion.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: July 28, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Xiaoxia Zhang, Andrei Dragos Radulescu, Srinivas Yerramalli, Yongbin Wei, Tamer Kadous, Jing Sun
  • Patent number: 10728058
    Abstract: A decision feedback equalizer includes: a comparison circuit; a latch circuit configured to latch a result of comparison by the comparison circuit; a setting circuit configured to set a decision threshold of the comparison circuit in accordance with a control signal; and a switch circuit configured to be controlled to be turned on and off by an output signal from the latch circuit, wherein the setting circuit is configured to be connected in parallel with an input stage of the comparison circuit through the switch circuit and operate in synchronization with a clock signal for driving the comparison circuit.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: July 28, 2020
    Inventor: Yasufumi Sakai
  • Patent number: 10715274
    Abstract: The present disclosure relates to a communication method related with channel width agile. The method uses a channel generation circuit at a signal transmitting end to generate a channel whose channel width can be changed according to a certain law, and a channel detection circuit at a signal receiving end corresponding thereto to detect the corresponding channel width by the same channel width agile law, thereby achieving the secure reception of the signal. Due to the agility of the channel width, communication security is ensured, and it does not conflict with other technologies (such as frequency hopping), and the channel width can be dynamically allocated. In this way, the advantages of high security, compatibility, and high spectrum utilization can be achieved. Meanwhile, the method realizes the maximum possible optimization of the channel and is very creative.
    Type: Grant
    Filed: February 3, 2019
    Date of Patent: July 14, 2020
    Assignee: Guangdong University of Technology
    Inventors: Jianguo Ma, Shaohua Zhou, Hengyue Jin