Patents Examined by Rahel Guarino
  • Patent number: 10775762
    Abstract: A data converter, a signal transmission method, and a signal transmission system for transmitting a signal to a programmable logic controller are provided. The data converter: performs sampling multiple times with respect to data detected by a sensor in one communication period of communication with a programmable logic controller; acquires statistical data by statisticizing a plurality of sampling data in the one communication period; and transmits the statistical data to the programmable logic controller when the one communication period is reached. Therefore, a signal sampling density is improved, and thus control accuracy can be enhanced. At the same time, a data transmission amount of a bus is reduced, a load on the programmable logic controller is reduced, and user convenience is improved.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: September 15, 2020
    Assignee: OMRON Corporation
    Inventors: Liang yong Duan, Hao Zhang
  • Patent number: 10763795
    Abstract: The present invention, which relates to a multi-path communication device for sharing a feedback path for digital pre-distortion, includes: a DPD processing unit configured to output a plurality of pre-distorted signals by respectively pre-distorting a plurality of input signals, to output an nth control signal when an nth input signal is input, and to output an nth pre-distorted signal using an nth feedback signal input in response to the nth control signal; a power amplifying unit configured to amplify each of the plurality of pre-distorted signals and output a plurality of amplified signals; a signal combining unit configured to combine some of each of the plurality of amplified signals and output combined feedback signal; and a signal selection unit configured to select and output only the nth feedback signal from the combined feedback signal according to the input nth control signal, thereby preventing an increase in the size of a device and manufacturing cost thereof caused by a plurality of DPD feedbac
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: September 1, 2020
    Assignee: SOLiD, INC.
    Inventors: Kwang Nam Seo, Do Yoon Kim, Hyoung Ho Kim
  • Patent number: 10749732
    Abstract: The present invention is directed to data communication. In certain embodiments, the present invention provides switching mechanism for choosing between redundant communication links. Data received from a first set of communication links are processed to have alignment markers removed, and first figure of merit value is determined based on the data without alignment markers. Similarly, a second figure of merit value is determined for the data received from the second set of communication links. A switch selects between the first set of communication links and the second set of communication links based on their respective figure of merit values. Alignment markers are inserted into the data transmitted through the selected set of data links. There are other embodiments as well.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: August 18, 2020
    Assignee: INPHI CORPORATION
    Inventors: Arash Farhoodfar, Jitendra Swarnkar, Michael Duckering, Andre Sczapanek, Scott Feller, Shaun Lytollis
  • Patent number: 10750398
    Abstract: Apparatuses, systems, and methods for a wireless device to perform a method including performing one or more of periodic beam quality measurements and/or event-based beam quality measurements, determining, based at least in part on one or more of the periodic beam quality measurements and/or the event-based beam quality measurements, a recommended beam quality measurement configuration, and transmitting, to a base station serving the UE, the recommended beam quality measurement configuration. In addition, the UE may perform receiving, from the base station, instructions regarding the beam quality measurement configuration. The instructions may include instructions to activate, deactivate, and/or modify at least one beam quality measurement configuration. In addition, the instructions may be based, at least in part, on the recommended beam quality measurement configuration.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: August 18, 2020
    Assignee: Apple Inc.
    Inventors: Wei Zhang, Tianyan Pu, Yang Li, Haitong Sun, Wei Zeng, Jia Tang, Beibei Wang, Sami M. Almalfouh, Zhu Ji, Johnson O. Sebeni, Yuchul Kim, Dawei Zhang
  • Patent number: 10742370
    Abstract: Disclosed are an IQ mismatch compensation method and apparatus for a radio frequency communication system, a compensation device and a communication device. The method comprises: acquiring an interaction result of test signals between a transmitting component and a receiving component; obtaining angle mismatch parameters of a pre-determined type according to the interaction result; determining a frequency domain compensator for performing mismatch compensation on the frequency-dependent angle mismatch parameters according to the following formulae: Y(w)=X(w)?jP(w)*X*(?w) and Y(?w)=X(?w)+jP(w)*X*(w); and performing frequency domain compensation on the frequency-dependent angle mismatch parameters by using the frequency domain compensator. Also disclosed is a computer storage medium.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: August 11, 2020
    Assignee: SANECHIPS TECHNOLOGY CO., LTD.
    Inventors: Liyang Bai, Chen Cheng, Yuanhang Sun, Yu Li
  • Patent number: 10742453
    Abstract: An equalizer circuit including a filter, equalization circuitry, and a filter adaptation circuit. The filter is configured to produce a linearized signal based at least in part on a received input signal and a nonlinear transfer function. The equalization circuitry is configured to filter inter-symbol interference (ISI) and detect one or more data symbols in the linearized signal. The equalization circuitry is further configured to produce an error signal indicating an amount of error in the detected data symbols. The filter adaptation circuit is configured to dynamically adjust the nonlinear transfer function of the filter based at least in part on the error signal from the equalization circuitry.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: August 11, 2020
    Assignee: Xilinx, Inc.
    Inventors: Min Wu, Hongtao Zhang, Yu Xu
  • Patent number: 10742455
    Abstract: An equalizer adjusting device includes a comparator, an inequality counter, an adjuster, and the like. The comparator performs magnitude comparison between a voltage value Vout of each bit output from an equalizer and a threshold value MonLVL and outputs a logical value MonSMP according to a result of the comparison. The inequality counter inputs a logical value DatSMP output from a sampler in accordance with the result of magnitude comparison between the voltage value Vout of each bit and a reference value, and the logical value MonSMP output from the comparator and counts events in which the logical value DatSMP and the logical value MonSMP differ from each other, every period. The adjuster adjusts a gain of the equalizer and the threshold value MonLVL of the comparator based on a counted value of the inequality counter.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: August 11, 2020
    Assignee: THINE ELECTRONICS, INC.
    Inventor: Tomohiro Sakai
  • Patent number: 10727969
    Abstract: A method and apparatus for transmitting or detecting primary synchronization signal. The receiver receives primary synchronization signal from a transmitter, and detects the sequence used in the received primary synchronization signal by using three root indexes. Here, the primary synchronization signal is generated by using a Zadoff-Chu sequence having one of the three root indexes. The three root indexes comprise a first index and a second index, and a sum of the first index and the second index corresponds to the length of the Zadoff-Chu sequence.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: July 28, 2020
    Assignee: Wild Guard Ltd.
    Inventors: Seung Hee Han, Min Seok Noh, Yeong Hyeon Kwon, Hyun Woo Lee, Dong Cheol Kim, Jin Sam Kwak
  • Patent number: 10720975
    Abstract: A communication method, including performing, by a terminal device, in response to a value of a resource bundling granularity being a first-type value, determining at least one resource block bundling group in a scheduling resource corresponding to a terminal device according to the first-type value of the resource bundling granularity, wherein, the first-type value comprises 2 or 4, and receiving, using the at least one resource block bundling group, data transmitted by a network device. The method further includes performing, by the terminal device, in response to the value of the resource bundling granularity being a second-type value, determining a scheduling resource corresponding to the terminal device as a same resource block bundling group, wherein, the second-type value comprises a size of a consecutive scheduling bandwidth of the terminal device, and receiving, using the resource block bundling group, data transmitted by the network device.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: July 21, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yong Liu, Xiang Ren
  • Patent number: 10708114
    Abstract: Certain aspects of the disclosure are directed to in-phase/quadrature (IQ) mismatch detection and correction in radio frequency receivers. According to a specific example, a method of manufacture or use comprises, in a quadrature radio-frequency receiver configured to process signals using I and Q components, providing parameters indicative of IQ mismatches associated with circuitry of the quadrature radio-frequency receiver due to changes in signal gain. The method further includes, while using the quadrature radio-frequency receiver to receive and process a received radio signal, correcting for the IQ mismatches by using the parameters in response to actual signal gain change.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: July 7, 2020
    Assignee: NXP B.V.
    Inventors: Juergen Richard Marschner, Robert Rutten, Niels Gabriel, Tjeu van Ansem, Francoise Jeannette Harmsze, Peter Blinzer, Frits Anthonie Steenhof
  • Patent number: 10693570
    Abstract: A device for analyzing a radio frequency signal is described. The device comprises an analyzing module that is configured to analyze input data relating to a multicarrier radio frequency signal with at least two carrier frequencies. The multicarrier analyzing module is further configured to calculate at least one of an optimized intermediate frequency and an optimized local oscillator frequency based on the input data. In addition, a method of analyzing a radio frequency signal is described.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: June 23, 2020
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Marcel Thraenhardt, Michael Kaltenbach, Georg Schnattinger
  • Patent number: 10693530
    Abstract: Aspects of the present disclosure generally pertains a system and method for wireless inter-networking between a wireless wide area network (WWAN) and a local area network (WLAN) employing one or more extended range wireless inter-networking devices. Aspects of the present disclosure more specifically are directed toward a high powered wireless interconnect device that includes high efficiency circuitry to make it possible to implement in a portable or in-vehicle form factor, which may provide reasonable battery life, size, weight, and thermal dissipation.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: June 23, 2020
    Inventors: Thomas R. Bilotta, Edward C. Lin, Steven A. Morley, Robert E. LaRose
  • Patent number: 10686502
    Abstract: Aspects of the disclosure relate to a selection scheme implemented by a scheduler in a multiple-input multiple-output (MIMO) network to identify which users to schedule simultaneously during the same time slot. For downlink communications and a particular frequency wholeband or sub-band, the scheduler can determine downlink channel information using uplink channel information for channels between base stations and UEs. The scheduler can then determine a strength of the channels using the downlink channel information, order the UEs using a fairness metric based on the channel strengths, and compute one or more QR decompositions to identify whether a spatial dimension of a UE is roughly or approximately orthogonal to spatial dimension(s) of other UEs selected to be served during a time slot being scheduled. If the spatial dimensions are roughly or approximately orthogonal, the scheduler selects the UE to be served at the same time as other UEs already selected.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: June 16, 2020
    Assignee: XCOM Labs, Inc.
    Inventors: Wanlun Zhao, Jinghu Chen, Tamer Adel Kadous, Michael Mingxi Fan, Peter John Black
  • Patent number: 10673478
    Abstract: According to one embodiment of an asynchronous communication device, the transmitter circuit includes a signal generation circuit to output a first pulse signal and a delay compensation circuit to receive the first pulse signal, perform delay compensation processing on the pulse width of the first pulse signal, and output a second pulse signal obtained by the delay compensation processing. The delay unit receives the second pulse signal, causes delay in the rising or falling edge of the second pulse signal, and outputs a third pulse signal in which the delay is caused. The receiver circuit receives the third pulse signal and performs signal processing based on the third pulse signal. The delay compensation circuit, while maintaining the pulse period of the first pulse signal, performs pre-compensation processing on the first pulse signal based on a delay value of the delay to be caused by the delay unit.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: June 2, 2020
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Kyoji Harada, Ryouta Niwa, Katsumichi Katou
  • Patent number: 10666332
    Abstract: The present disclosure relates 5G or pre-5G communication systems for supporting higher data transmission rate than those by LTE or other post-4G communication systems. According to the present disclosure, a method for operating a beamformed reference signal by a base station and terminal in a communication system, and the terminal, are provided. The method includes transmitting, to a terminal, control information indicating whether a first codebook is used for generating feedback information on a downlink reference signal. The first codebook is used if generating feedback information on the beamformed reference signal and is generated based on a number of antenna ports and a number of ranks.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: May 26, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keon-Kook Lee, Tae-Young Kim, Jee-Hwan Noh, Hyun-Il Yoo, Su-Ryong Jeong
  • Patent number: 10652068
    Abstract: Detection of Narrow-Band IOT (NB-IOT) Synchronization signal and Cyclic Prefix length determination at UE. The detection method implements symbol level correlation, comprising: filtering the radio signal with a plurality of matched filters to obtain a correlation for each OFDM symbol in the synchronization signal, wherein each matched filter provides a correlation with one OFDM symbol in the synchronization signal; delaying and combining the outputs of the plurality of matched filters in a first way to provide a first combined output for the normal cyclic prefix configuration and delaying and combining the outputs of the plurality of matched filters in a second way to provide a second combined output for the extended cyclic prefix configuration; and detecting a correlation peak indicative of the synchronization signal in one of the first or second combined outputs. The present disclosure also relates to a user equipment including the apparatus.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: May 12, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Joakim Axmon, Dandan Hao
  • Patent number: 10652053
    Abstract: A wireless communications system having at least one RIM associated with a remote unit. The RIMs and the remote units (RU) are configured for transmitting and receiving test signal over at least one narrow band of frequencies. The system includes a plurality of signal generators associated with a signal path, each signal generator configured for generating a test signal over the at least one narrow band of frequencies; a controller configured to generate a test signal for the signal path; and, an equalizer for adjusting gain for the signal path according to at least one of the narrow band of frequencies.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: May 12, 2020
    Assignee: Corning Optical Communications LLC
    Inventors: Yury Abramov, Rami Goren, Leonid Perelman, Leonid Polonski, Mordechay Vahedi
  • Patent number: 10651993
    Abstract: A plurality of multicarrier signals is generated. Each of the plurality of multicarrier signals includes a pilot symbol sequence at a same temporal point in each multicarrier signal. Each pilot symbol sequence includes a plurality of pilot symbols with non-zero amplitude. A quantity of the plurality of pilot symbols in each pilot symbol sequence is greater than or equal to a quantity of the plurality of multicarrier signals to be transmitted. The plurality of multicarrier signals are transmitted in an identical frequency band from a plurality of antennas.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: May 12, 2020
    Assignee: Wi-Fi One, LLC
    Inventors: Yutaka Murakami, Masayuki Orihashi, Akihiko Matsuoka
  • Patent number: 10637708
    Abstract: The receiver comprises a demodulator configured to detect a signal representing the OFDM symbols and to generate a sampled digital version of the OFDM symbols in the time domain. A Fourier transform processor is configured to receive the time domain digital version of the OFDM symbols and to form a frequency domain version of the OFDM symbols, from which the pilot symbol bearing sub-carriers and the data symbol bearing sub-carriers can be recovered. A detector is configured to recover the data symbols from the data bearing sub-carriers of the OFDM symbols and to recover the pilot symbols from the pilot bearing sub-carriers of the OFDM symbols in accordance with the continuous pilot symbol pattern. The continuous pilot symbols are present at the same sub-carrier locations in first OFDM symbols and as second OFDM symbols. A transmitter is also provided.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: April 28, 2020
    Assignee: SATURN LICENSING LLC
    Inventor: Gholam Hosein Asjadi
  • Patent number: 10630360
    Abstract: Provided is a communication device. The communication device communicating with another communication device, includes: a reception unit configured to receive a signal transmitted from the another communication device; a transmission unit configured to transmit a signal to the another communication device; and a control unit configured to determine a weighting vector to be used in the reception unit and a precoding vector to be used in the transmission unit, in which, in a case where a specific reference signal indicating that the weighting vector used for receiving the signal in the another communication device has been changed is received by the reception unit, the control unit determines the precoding vector to be used for signal transmission by performing channel estimation by using the received specific reference signal, and in which the transmission unit transmits data precoded with the precoding vector determined by the control unit.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: April 21, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Tomoya Ohara, Hiroki Harada, Ryosuke Osawa