Patents Examined by Aristocratis Fotakis
  • Patent number: 10291307
    Abstract: The disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A feedback transmission method for a receiving device in a multiple input multiple output system according to one embodiment comprises: a step of measuring channel state information; a first quantization step of quantizing the channel state information using a first codebook; a second quantization step of quantizing the channel state information using second and third codebooks which are different from the first codebook; and a step of feeding back the channel state information on the basis of a selection result of one of the first and second quantization steps.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: May 14, 2019
    Assignees: Samsung Electronics Co., Ltd., Purdue Research Foundation
    Inventors: Taeyoung Kim, David J. Love, Jun-Il Choi, Jiyun Seol, Keonkook Lee
  • Patent number: 10284247
    Abstract: A central network component, a FlexRay-compatible central network component, and a method for bit processing in a central network component are described. In one embodiment, a central network component for facilitating communication among communication nodes includes a bit oversampling module configured to oversample bits received from a first communication node of the communication nodes with an oversampling factor to generate oversampled bit streams, a time point selection module configured to select time points in the oversampled bit streams, where the time points correspond to inner samples of the oversampled bit streams with respect to the oversampling factor, and a bit outputting module configured to output the inner samples to a second communication node of the communication nodes between the time points. Other embodiments are also described.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: May 7, 2019
    Assignee: NXP B.V.
    Inventors: Abhijit Kumar Deb, Hubertus Gerardus Hendrikus Vermeulen, Sujan Pandey
  • Patent number: 10277351
    Abstract: In a wireless communication system, wireless communication devices are disposed, each including two orthogonal antennas, a transmitter, and a receiver using rotating polarized wave having a changeable transmission frequency. Specific codes are assigned to the devices, respectively and are shared. In a first of the devices, information and a first code are superimposed on a first carrier wave. In a second of the devices, the transmitted wave is received to reproduce the information with the codes assigned to the second device and the shared code assigned to the first device. The second device transmits second information through modulation using the code thereof. Each of the first and second devices adjusts the propagation frequency for a maximum ratio in intensity of a signal reproduced with the code assigned to another device to an intensity of a signal reproduced with the code assigned to the own device.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: April 30, 2019
    Assignee: Hitachi, Ltd.
    Inventor: Ken Takei
  • Patent number: 10263715
    Abstract: A post-cursor compensation system includes a state detector that receives a signal on a data line to detect a predefined state, and accordingly generates a clear control signal; a synchronization detector that receives the signal on the data line and the clear control signal to detect at least one synchronization state, and accordingly generates a trigger signal; and a compensation generator that receives the trigger signal and accordingly generates a compensation signal.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: April 16, 2019
    Assignee: M31 Technology Corporation
    Inventor: Shuo-Ting Kao
  • Patent number: 10263433
    Abstract: According to one embodiment, a power supply device includes a voltage conversion circuit configured to convert a voltage of power generated by a power generation element; a plurality of power storage elements connected in parallel with respective load circuits; a switch circuit configured to switch an electrical connection between the voltage conversion circuit and each of the plurality of power storage elements; and a control circuit configured to measure voltages of the plurality of power storage elements and to control the switch circuit based on the measured voltages.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: April 16, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kohei Onizuka, Takeshi Ueno
  • Patent number: 10263824
    Abstract: A method for estimating a frequency offset of a reception signal and, more particularly, a signal processing method which can be applied to a receiver modem in a wireless communication system, are provided. The method includes using an absolute value within a specific time area in an inverse discrete fourier transform (IDFT) output of a decorrelation signal between a reception signal and a reference signal, and enabling a highly approximate estimation of a frequency offset through only a single decorrelation test using a characteristic of a predetermined permutation of a signal.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: April 16, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Youngtaek Bae, Hayoung Yang, Joohyun Lee
  • Patent number: 10237109
    Abstract: Interference (I1, I2) is mitigated in a waveform received at the input of a receiver in a wireless network, the interference comprising passive intermodulation PIM products of at least a first signal (C1). A first stream of time samples (5) is generated of a simulated first PFM product of at least the first signal (C1), and a second stream of time samples (6) is generated of the simulated first PIM product. The second stream has a delay with respect to the first stream. A replica (8) is generated of the interference by processing (7) at least the first stream and the second stream, the processing comprising reducing a degree of correlation between the first stream and the second stream, and the replica of the interference is combined with a stream of time samples of the received waveform (40) to reduce the interference in the received waveform.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: March 19, 2019
    Assignee: AceAxis Limited
    Inventors: Fiona Wilson, Simon Gale, David Damian Bevan
  • Patent number: 10224993
    Abstract: The present invention relates to a method and an apparatus for beamforming by a base station in a wireless communication system supporting multiple antennas. Particularly, the method comprises the steps of: determining a first coverage on the basis of long-term feedback information; setting multiple logical antenna ports for the first coverage on the basis of a combination of multiple horizontal beams and multiple vertical beams; and transmitting a channel state information-reference signal to a terminal according to a precoding matrix index which is set on the basis of the multiple antenna ports, wherein the multiple horizontal beams respectively correspond to multiple second coverages divided into horizontal domains on the basis of the first coverage, and the multiple vertical beams respectively correspond to multiple third coverages divided into vertical domains on the basis of the first coverage.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: March 5, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Youngtae Kim, Kijun Kim, Jonghyun Park, Yunjung Yi
  • Patent number: 10224981
    Abstract: Aspects of the subject disclosure may include, for example, a coupling device includes a circuit that receives a signal. At least one passive electrical circuit element generates an electromagnetic field in response to the signal. A portion of the electromagnetic field is guided by a surface of a transmission medium to propagate as a guided electromagnetic wave longitudinally along the transmission medium. Other embodiments are disclosed.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: March 5, 2019
    Assignee: AT&T INTELLECTUAL PROPERTY I, LP
    Inventors: Paul Shala Henry, Robert Bennett, Irwin Gerszberg, Farhad Barzegar, Donald J Barnickel, Thomas M. Willis, III
  • Patent number: 10200070
    Abstract: A modem includes a modulator and a demodulator. The demodulator includes a direct current removing (DCR) circuit to transition between an acquisition mode, where the DCR circuit operates with a first loop gain; and a tracking mode, where the DCR circuit operates with a second loop gain. The second loop gain is smaller than the first loop gain, and the timing of the transition between the acquisition mode and tracking mode is programmable.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: February 5, 2019
    Assignee: Cypress Semiconductor Corporation
    Inventors: Yan Li, Wendy Yu, Kamesh Medapalli, Hongwei Kong, Patrick Cruise
  • Patent number: 10194443
    Abstract: A transmitter of the present disclosure includes: an output terminal; a driver that performs transition of a voltage of the output terminal among a plurality of voltages; and a controller that controls the driver to cause transition start timing in one voltage transition in voltage transition among the plurality of voltages to be later than transition start timing in another voltage transition.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: January 29, 2019
    Assignee: Sony Corporation
    Inventor: Takanori Saeki
  • Patent number: 10181913
    Abstract: Techniques are disclosed related to calibrating and operating a multiple input multiple output (MIMO) radio system. In some embodiments, a dual mode calibration may be employed to calibrate a remote transmitter (RT). During a first, Sparse Full System Calibration (SFSC) mode, the RT may be physically connected to the MIMO radio system. In some embodiments, first and second equalizers may be derived for each of the RT and a local transmitter (LT), respectively. During a subsequent, Real-time Calibration (RTC) mode, the RT may be located remotely from the MIMO radio system, and the RT may be configured to communicate with the MIMO radio system over the air via an antenna. In the RTC mode, third equalizers may be derived for the LT. The RT may then be calibrated based on an equalizer that is derived from each of the first, second, and third equalizers.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: January 15, 2019
    Assignee: NATIONAL INSTRUMENTS CORPORATION
    Inventors: Tanim Mohammed Abu Taher, Ahsan Aziz, James W. McCoy
  • Patent number: 10165094
    Abstract: Embodiments described herein provides a system for detecting data received in a low power low rate (LPLR) data frame format. The system includes a receiver and control circuitry. The receiver is configured to receive a data frame comprising an LPLR preamble portion and an LPLR data portion following the LPLR preamble portion. The LPLR preamble portion and the LPLR data portion occupy a bandwidth that is less than an allowed bandwidth. The control circuitry is configured to determine a mode of the data frame based on whether the data frame has an additional portion, and detect a data field in the LPLR preamble portion from the data frame based on the mode of the data frame.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: December 25, 2018
    Assignee: Marvell World Trade Ltd.
    Inventors: Yakun Sun, Hongyuan Zhang, Lei Wang, Hui-Ling Lou
  • Patent number: 10158366
    Abstract: A frequency-to-digital-converter based PLL (FDC-PLL) that implements the functionality of a charge pump and analog-to-digital converter (ADC) with a dual-mode ring oscillator (DMRO) and digital logic. Preferred embodiments of the invention include circuit-level techniques that provide better spurious tone performance and very low phase noise with lower power dissipation and supply voltage than prior digital PLLs known to the inventors.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: December 18, 2018
    Assignee: The Regents of the University of California
    Inventors: Ian Galton, Colin Weltin-Wu
  • Patent number: 10158470
    Abstract: The present invention relates to a secondary station comprising means for communicating with at least one primary station, the secondary station comprising means for receiving from the primary station a subset of reference symbols selected out a set of possible reference symbols, the reference symbols of the subset being associated with a spatial channel, wherein a transmission characteristic of the subset of reference symbols depends on the spatial channel.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: December 18, 2018
    Assignee: Koninklijke Philips N.V.
    Inventors: Timothy James Moulsley, Milos Tesanovic, Choo Chiap Chiau, Robert James Davies
  • Patent number: 10142005
    Abstract: Provided are a method and apparatus for performing beamforming training in a wireless local area network. A responder receives a plurality of beacon frames in a plurality of TX sectors from an initiator during a transmission (TX) beamforming (BF) interval. The responder transmits a first sector sweep feedback for a first array antenna to the initiator during a reception (RX) beamforming (BF) interval. The first sector sweep feedback comprises a first antenna ID indicating a first array antenna and a first TX ID indicating a TX sector selected for the first array antenna from the plurality of TX sectors.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: November 27, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Kyungtae Jo, Hangyu Cho, Jinmin Kim, Sungjin Park
  • Patent number: 10129055
    Abstract: A power amplifier cell includes a first input arranged to receive an in-phase control signal, a second input arranged to receive a quadrature control signal, an input stage arranged to output a drive signal based at least partly on the received in-phase and quadrature control signals, and an output stage arranged to receive at an input thereof the drive signal output by the input stage, and to generate an output signal for the power amplifier cell in response to the received drive signal.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: November 13, 2018
    Assignee: MediaTek Singapore Pte. Ltd.
    Inventors: Zhiming Deng, Chun-Hsien Peng
  • Patent number: 10128908
    Abstract: Aspects of the subject disclosure may include, for example, a coupling device includes a circuit that receives a signal. At least one passive electrical circuit element generates an electromagnetic field in response to the signal. A portion of the electromagnetic field is guided by a surface of a transmission medium to propagate as a guided electromagnetic wave longitudinally along the transmission medium. Other embodiments are disclosed.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: November 13, 2018
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Robert Bennett, Irwin Gerszberg, Farhad Barzegar, Donald J. Barnickel, Thomas M. Willis, III
  • Patent number: 10122527
    Abstract: A clock recovery circuit for providing clock recovery from a burst signal that is periodically present and absent in a noisy channel. The recovery circuit includes an outer main tracking second-order phase locked loop (PLL) having an analog phase detector, a digital loop filter, and an analog/digital hybrid numerically controlled oscillator (NCO) that operates so that the clock recovery frequency is “frozen” to its last value from the previous burst and the phase detector is disabled during the gaps between data bursts. The NCO is implemented with an inner loop PLL that operates as a high resolution synthesizer having a low internal control bandwidth that preserves VCO phase noise. The outer main loop achieves a higher control bandwidth through direct tuning of the inner loop VCO with the outer loop tuning signal.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: November 6, 2018
    Assignee: Northrop Grumman Systems Corporation
    Inventor: Gerald R. Fischer
  • Patent number: 10116470
    Abstract: An apparatus comprising an input port configured to receive an input signal propagated through a transmission link, wherein the transmission link comprises a low-frequency channel loss and a high-frequency channel loss, a continuous-time linear equalization (CTLE) circuit coupled to the input port and configured to produce an output signal according to the input signal by applying a first gain to the input signal at a first frequency to compensate the low-frequency loss, and applying a second gain to the input signal at a second frequency to compensate the high-frequency channel loss, and an output port coupled to the CTLE circuit and configured to output the output signal.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: October 30, 2018
    Assignee: Futurewei Technologies, Inc.
    Inventors: Liang Gu, Yuming Cao, Yen Dang, Gong Lei, Hungyi Lee, Yifan Gu, Mamatha Deshpande, Shou-Po Shih, Yan Duan