Patents Examined by Wednel Cadeau
  • Patent number: 10699169
    Abstract: Provided is a machine learning-based object detection method performed by an object detection apparatus. the method comprises constructing an object detection model by performing machine learning on a training image set, wherein the object detection model is a model for detecting a target object in an input image based on the result of comparing a confidence score for the target object with a threshold value, obtaining an input image given a detection result for the target object, wherein the obtained input image is an image not included in the training image set, predicting one or more object regions, in which the target object exists, in the obtained input image by using the object detection model, classifying a region not matching the detection result among the predicted object regions as a false detection region; and adjusting the threshold value of the object detection model based on a confidence score of the false detection region.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: June 30, 2020
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Sun Ah Kang, Sang Hak Lee, Bo Youn Kim, Seong Jong Ha
  • Patent number: 10680752
    Abstract: A transmitter apparatus wherein a simple structure is used to successfully suppress the degradation of error rate performance that otherwise would be caused by fading or the like. There are included encoding parts that encode transport data; a mapping part that performs such a mapping that encoded data sequentially formed by the encoding parts are not successively included in the same symbol, thereby forming data symbols; and a symbol interleaver that interleaves the data symbols. In this way, a low computational complexity can be used to perform an interleaving process equivalent to a bit interleaving process to effectively improve the reception quality at a receiving end.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: June 9, 2020
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Yutaka Murakami, Shutai Okamura, Kiyotaka Kobayashi, Masayuki Orihashi, Kazuaki Takahashi
  • Patent number: 10663594
    Abstract: Some embodiments are directed to a processing method of a three-dimensional point cloud, including: obtaining a 3D point cloud from a predetermined view point of a depth sensor; extracting 3D coordinates and intensity data from each point of the 3D point cloud with respect to the view point; transforming 3D coordinates and intensity data into at least three two-dimensional spaces, namely an intensity 2D space function of the intensity data of each point, a height 2D space function of an elevation data of each point, and a distance 2D space function of a distance data between each point of 3D point cloud and the view point, defining a single multi-channel 2D space.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: May 26, 2020
    Assignee: IMRA EUROPE S.A.S.
    Inventors: Dzmitry Tsishkou, Frédéric Abad, Rémy Bendahan
  • Patent number: 10644910
    Abstract: Aspects of the present disclosure provide an apparatus and techniques for managing interference across carriers of an operator. A base station identifies a first portion of a first carrier assigned to an operator, wherein uplink and downlink subframe configuration for TDD communications using the first portion and a first portion of a second carrier also assigned to the first operator are synchronized between the first and the second carriers. The base station identifies a second portion of the first carrier, wherein uplink and downlink subframe configurations for TDD communications using the second portion and a second portion of the second carrier are not synchronized between the first and second carriers. The base station communicates with one or more user equipments (UEs) using the first and second portions of the first carrier.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: May 5, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Krishna Kiran Mukkavilli, Naga Bhushan
  • Patent number: 10644899
    Abstract: In a transmission apparatus, signal carrier signal circuitry that generates two single carrier signals including a legacy preamble signal, a legacy header signal and an extension header signal respectively. OFDM signal circuitry that generates one OFDM signal by performing an IFFT processing on one or more payload signals. Transmission circuitry that transmits the two single carrier signals by allocating to a bonding channel which is formed by bonding two adjacent channels used in a bonding transmission scheme and the one OFDM signal by allocating to the bonding channel which is frequency-shifted.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: May 5, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hiroyuki Motozuka, Naganori Shirakata, Takenori Sakamoto, Masataka Irie
  • Patent number: 10644737
    Abstract: Aspects of the present disclosure provide techniques for using cyclic-shifts in code division multiplexing to shift transmitted signals (e.g., reference signals, control signals, and/or data) from different antenna ports of the transmitting device. Particularly, for multiple-input multiple-output (MIMO) systems that multiply the capacity of a radio link by using multiple transmit and receive antennas to exploit multipath propagation, aspects of the present disclosure minimize interference at the receiving device by separating the signals from different antenna ports based on the channel impulse response (or delay spread) of each antenna port of the channel. In some examples, the transmitting device may maximize resource utilization by interleaving the reference signals, control signals, and/or data from a plurality of antenna ports while maintaining adequate spacing between each signal.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: May 5, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Alexandros Manolakos, June Namgoong, Yang Yang, Jing Jiang
  • Patent number: 10594390
    Abstract: Systems, methods, and processing nodes for selecting a relay wireless device for beamforming with a beamforming-capable access node. In certain instances, the relay wireless device may be prioritized over end-user wireless devices for beamform activation, particularly when there are more wireless devices meeting the beamforming criteria of a donor access node than available beamform seats.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: March 17, 2020
    Assignee: Sprint Spectrum L.P.
    Inventors: Hemanth Pawar, Shilpa Kowdley, Krishna Sitaram, Chunmei Liu
  • Patent number: 10574285
    Abstract: A multiway switch, a radio frequency system, and a wireless communication device are provided. The multiway switch includes four T ports and 2n P ports. Each of the four T ports is coupled with all of the 2n P ports. The four T ports support a transmission-reception function. n is an integer and n?2. The multiway switch is configured to be coupled with a radio frequency circuit and an antenna system of a wireless communication device operable in a dual-frequency dual-transmit mode, to implement a preset function of the wireless communication device. The antenna system includes 2n antennas corresponding to the 2n P ports, and the preset function is a function of transmitting a sounding reference signal (SRS) through the 2n antennas in turn.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: February 25, 2020
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Jian Bai
  • Patent number: 10567054
    Abstract: This application provides a channel state information (CSI) sending method, an apparatus, and a system. In this solution, a terminal device feeds back a first rank used for a common channel and a first precoding matrix indicator, and feeds back a second rank used for a traffic channel and a second precoding matrix indicator to a base station. The first precoding matrix indicator is used to indicate a first precoding matrix in a first precoding matrix set. The second precoding matrix indicator is used to indicate a second precoding matrix in a second precoding matrix set. The first precoding matrix set is different from the second precoding matrix set. Different precoding matrix sets are used on the common channel and the traffic channel, to obtain channel state information, thereby reducing bits required for feedback while satisfying a system requirement.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: February 18, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Jianqin Liu
  • Patent number: 10568224
    Abstract: A configurable radio frequency system. The system includes: a plurality of radio frequency cells connected in a cascade. Each of the radio frequency cells includes an input switch connected to an input of the radio frequency system, an output switch connected to an output of the radio frequency system, and a plurality of elements, each of the elements being connected between the input switch and the output switch. The input switch and the output switch are configured, depending on their respective settings, to cause a radio frequency signal path from an input of the cell to an output of the cell to include one of the elements. The plurality of elements in each cell includes a band pass filter, an attenuator, a through path, an amplifier, and a mixer.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: February 18, 2020
    Assignee: Raytheon Company
    Inventors: William K. Mcgehee, John Hudlow, Michael R. Patrizi, Tuan M. Tong
  • Patent number: 10560140
    Abstract: A MIMO wireless transceiver includes: antennas, components forming transmit and receive chains coupled to the antennas, a signal combiner, and a predistortion calibration circuit. The transmit chain components include: pre-distorter circuits and power amplifiers (PA)s, The pre-distorter circuits each couple to a transmit chain for pre-distorting an associated signal thereon. The PAs are input coupled to a corresponding transmit chain and output coupled to a corresponding antenna. The signal combiner combines the amplified signals from all of the PAs into a combined output signal.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: February 11, 2020
    Assignee: QUANTENNA COMMUNICATIONS, INC.
    Inventors: Songping Wu, Hossein Dehghan, Abhishek Kumar Agrawal
  • Patent number: 10547486
    Abstract: A data transmission method and apparatus are provided. The method includes: modulating, based on a codebook, every N information bits of to-be-transmitted data into one M-dimensional modulation symbol, where the codebook is generated based on an M-dimensional modulation constellation, the M-dimensional modulation constellation includes M modulation constellations, a constellation point in an mth modulation constellation in the M modulation constellations is obtained by mapping N information bits based on an mth information bit subset, the mth information bit subset includes information bits on some locations in the N information bits, and a union set of M information bit subsets respectively corresponding to the M modulation constellations is the N information bits, where M and N are integers greater than or equal to 2, and m is 1, 2, . . . , or M; and sending the generated M-dimensional modulation symbol. The technical solutions can reduce complexity when a modulation signal is demodulated.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: January 28, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Meng Cheng, Yiqun Wu, Yan Chen
  • Patent number: 10541733
    Abstract: A wireless transceiver including: antennas, components forming transmit and receive chains coupled to the antennas for MIMO communications, voltage sources, power amplifier supply voltage detectors and regulated switches. The components forming the transmit chains include power amplifiers (PA)s each coupled to a corresponding one of the transmit chains for amplifying RF signals of a MIMO communication link and each PA having a supply voltage input. The PA supply voltage detectors each couple to an associated one of the transmit chains to detect changes in an amplitude of the signal thereon and to identify required changes in the supply voltage level of the corresponding PA for transmission of the signal. The regulated switches couple the voltage sources and PAs, and are responsive to each PA's supply voltage detector to switchably couple the supply voltage input of each PA to the voltage sources providing the identified voltage levels during transmission.
    Type: Grant
    Filed: November 5, 2017
    Date of Patent: January 21, 2020
    Assignee: QUANTENNA COMMUNICATIONS, INC.
    Inventors: Leonardo Mitsuyuki, Kyle Zukowski, Cristiano Benevento, Didier Margairaz
  • Patent number: 10536519
    Abstract: Methods, devices and systems for synchronizing actions taken by digital devices in a group wherein the digital devices to use a flocking protocol to establish time or behavior synchronization between individual digital devices within the group. The flocking protocol includes the transmission of synchronization information from one device to neighboring devices within the group and the processing/use of such synchronization information by the devices to synchronize the timing and/or other characteristics of their actions.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: January 14, 2020
    Assignee: Pi Variables, Inc.
    Inventor: Guy T. McIlroy
  • Patent number: 10530405
    Abstract: A communication device is provided that includes a receiver configured to receive a signal. The communication device further includes a determination circuit configured to determine an interference estimation signal of the received signal based on a first signal sample of the received signal and on an interference signal model. The communication device further includes a correction circuit configured to determine a corrected interference estimation signal based on the determined interference estimation signal and on a second signal sample of the received signal. The communication device further includes a subtraction circuit configured to subtract the corrected interference estimation signal from the received signal.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: January 7, 2020
    Assignee: Intel Corporation
    Inventors: David Arditti Ilitzky, Rocio Hernandez Fabian
  • Patent number: 10516523
    Abstract: A system for serializing input data signals and generating an output data signal includes a FIFO memory that launches the input data signals at different phases of a clock signal. The system further includes multiple stages of a serializer circuit, and each stage of the serializer circuit receives a clock signal. Each successive stage includes half the number of serializer circuits that are included in the previous stage, and each successive stage is clocked by a clock signal that transitions at twice the frequency of the previous stage clock signal. The serializer circuits that belong to a single stage receive the clock signal with different phase. The phase and frequency of clock signals of serializer stages are adjusted such that a launched input data signal is outputted as the output data signal. Further, a critical path for each serializer circuit is equal to full clock cycle of the clock signal.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: December 24, 2019
    Assignee: Synopsys, Inc.
    Inventors: Biman Chattopadhyay, Ravi Mehta
  • Patent number: 10498417
    Abstract: According to one example, a communication method is described comprising receiving a message from a sender transmitted in each of a plurality of transmit antenna main beam directions and determining reception qualities of the messages. The method further comprises identifying a subset of a plurality of transmit antenna main beam directions based on the reception qualities of the messages, wherein the subset includes multiple transmit antenna main beam directions of the plurality of transmit antenna main beam directions, performing, for each transmit antenna main beam direction of the subset, a beam training procedure to determine an antenna weight vector for the transmit antenna main beam direction and performing a communication based on one of the determined antenna weight vectors.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: December 3, 2019
    Assignee: Intel IP Corporation
    Inventor: Maxim Greenberg
  • Patent number: 10498405
    Abstract: Systems and methods for codebook restriction for closed-loop codebook-based precoding in a Multiple-Input-Multiple-Output (MIMO) wireless communications system based on antenna correlation are disclosed. In some embodiments, a method of operation of a wireless device to provide feedback for a closed-loop codebook-based precoding system is provided. The method comprises determining a codebook restriction based on an antenna correlation for a MIMO channel between a network node and the wireless device. The antenna correlation is transmit antenna correlation, receive antenna correlation, or both transmit and receive antenna correlation. The codebook restriction is a restriction that reduces a full codebook of the wireless device to a reduced codebook. The method of operation of the wireless device further comprises generating a feedback report using the reduced codebook and transmitting the feedback report to the network node.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: December 3, 2019
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Sairamesh Nammi, Niklas Andgart
  • Patent number: 10454523
    Abstract: A radio frequency signal generation device may include an optical comb generator configured to generate an optical comb signal including a plurality of first wavelength signals having different wavelengths; a pulse shaper configured to attenuate remaining wavelength signals excluding a plurality of second wavelength signals among the plurality of first wavelength signals; an optical-electronic converter configured to generate a radio frequency signal including a carrier frequency signal from the plurality of second wavelength signals outputted from the pulse shaper; and a pulse shaping controller configured to control the pulse shaper such that a carrier frequency of the carrier frequency signal varies according to a frequency hopping pattern.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: October 22, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sungil Kim, Jung Min Park, Minje Song, Minhyup Song, Jae-Sik Sim, Joon Tae Ahn
  • Patent number: 10454558
    Abstract: Embodiments of the present application disclose a spreading method, a spreading control method, and apparatuses thereof. The spreading method comprises: determining a first combined spreading code to be used at least according to first information associated with spreading by using combined spreading codes, the first combined spreading code comprising N spreading codes, and N being an integer not less than 2; and spreading N data units by using the first combined spreading code, wherein the N data units comprise at least one first unit and at least one second unit, the at least one first unit comprises data to be sent, and the at least one second unit is configured to recover the at least one first unit. The methods and apparatuses of the embodiments of the present application can effectively solve the problem of insufficient number of orthogonal spreading codes by using combined spreading codes.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: October 22, 2019
    Assignee: BEIJING ZHIGU TUO TECH CO., LTD.
    Inventors: Fanggang Wang, Guoyu Ma