With A Matrix Patents (Class 342/373)
  • Patent number: 11223140
    Abstract: A holographic antenna includes a transmission line and a plurality of interdigital capacitor (IDC) slots respectively formed along the transmission line. The holographic antenna also includes an active tuning device connected to each IDC slot from the plurality of IDC slots. Each active tuning device is configured to provide a holographic pattern on the plurality of IDC slots in response to the holographic antenna transmitting or receiving an electromagnetic signal. The holographic pattern is controllable for scanning an electromagnetic beam by the holographic antenna. The holographic antenna also includes a biasing source coupled to each active tuning device and configured to control its respective operation.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: January 11, 2022
    Assignee: The Boeing Company
    Inventors: Hanseung Lee, Ryan G. Quarfoth, Amit Madanlal Patel, James H. Schaffner
  • Patent number: 11209538
    Abstract: A millimeter-wave three-dimensional holographic imaging method and system. The method comprises: transmitting a continuous frequency wave to a measured human body, and receiving an echo signal reflected back; performing Fourier transform, phase compensation, inverse Fourier transform, and “non-uniform sampling to uniform sampling” interpolation; and projecting three-dimensional echo data to obtain two-dimensional reconstruction data, and generating a two-dimensional reconstructed image.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: December 28, 2021
    Assignee: SHENZHEN INSTITUTE OF TERAHERTZ AND INNOVATION
    Inventors: Shukai Zhao, Lingxia Guo, Chunchao Qi, Xiongwei Huang, Hanjiang Chen
  • Patent number: 11211982
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device may select a lens, of a set of candidate lenses, and a butler matrix, of a set of candidate butler matrixes, to communicate a signal with a second wireless communication device, wherein the lens is spaced, from the butler matrix, at a distance that is at least a far field length of the lens for a frequency associated with the signal. The first wireless communication device may communicate, with the second wireless communication device, the signal via a beam of the butler matrix and the lens. Numerous other aspects are provided.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: December 28, 2021
    Assignee: QUALCOMM incorporated
    Inventors: Idan Michael Horn, Yehonatan Dallal
  • Patent number: 11211719
    Abstract: An antenna arrangement (1) comprising a dual polarized antenna array (10) and a reconfigurable feed network (17) connected thereto is provided.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: December 28, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON
    Inventors: Sven Petersson, Andreas Nilsson
  • Patent number: 11201388
    Abstract: A base station antenna (BSA) system includes a radio-frequency (RF) generator having a plurality of power-amplifying circuits therein, and an antenna, which includes a plurality of columns of radiating elements. These radiating elements are electrically coupled by RF signal routing to a corresponding plurality of ports of the antenna that receive a corresponding plurality of RF input signals. These RF input signals have respective amplitudes and phases that support the concurrent generation of three spaced-apart RF beams by the antenna and are derived from respective RF signals generated by the plurality of power-amplifying circuits. The RF input signals including: (i) a first RF input signal defined by at least two linearly superposed RF signals of equivalent frequency having unequal combinations of amplitude and phase weighting, and (ii) a second RF input signal defined by at least two linearly superposed RF signals of equivalent frequency having unequal combinations of amplitude and phase weighting.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: December 14, 2021
    Assignee: CommScope Technologies LLC
    Inventors: Martin L. Zimmerman, Björn Lindmark
  • Patent number: 11190953
    Abstract: The disclosure relates to technology beam steering in which one or more antennas are configured to form a beam directed to a first beam direction based on a configuration corresponding to an environment. A change in direction of the beam is identified in response to a change in orientation of user equipment, the change in orientation determined via one or more sensors in the user equipment, and a second beam direction is calculated based on a the first beam direction and the change in orientation of the user equipment. The one or more antennas are then configured by steering the beam to the second beam direction to compensate for the change in orientation of the user equipment.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: November 30, 2021
    Assignee: Futurewei Technologies, Inc.
    Inventors: Xiaoyin He, Ping Shi, Ricky Lap Kei Cheung
  • Patent number: 11178560
    Abstract: A base station that includes: a memory; and a processor that is connected to the memory and that is configured to: select one or more terminals to communicate with from plural terminals with which communication is possible using metric values calculated using an error correction offset value corresponding to a number of terminals being selected; and decide on at least one of a modulation scheme or a coding rate for each terminal selected.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: November 16, 2021
    Assignee: FUJITSU LIMITED
    Inventor: Takaharu Kobayashi
  • Patent number: 11171427
    Abstract: An apparatus includes a package and a beam former circuit. The package may be configured to be mounted on an antenna array at a center of four antenna elements. Each antenna element may include a dual-pole antenna having a vertical feed and a horizontal feed. The beam former circuit may be (i) disposed in the package, (ii) have a plurality of pairs of ports, (iii) configured to generate a plurality of radio-frequency signals in the ports while in a transmit mode and (iv) configured to receive the radio-frequency signals at the ports while in a receive mode. Each pair of the ports is configured to be directly connected to a respective one of the antenna elements. All of the ports may be spatially routed into alignment with the vertical feeds and the horizontal feeds in a single conductive plane of the antenna array.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: November 9, 2021
    Assignee: Integrated Device Technology, Inc.
    Inventors: Samet Zihir, Tumay Kanar
  • Patent number: 11165165
    Abstract: An antenna system, including an antenna element, a feeding network, and a radio frequency module, where the radio frequency module includes m transmitters and n receivers, the m transmitters and the n receivers are separately connected to the feeding network, and a set of then frequency bands is a subset of a set of the m frequency bands; and the feeding network is further connected to the antenna element, feeds transmit signals generated by the m transmitters to the antenna element, and/or feeds receive signals of the antenna element to the n receivers, where m and n are positive integers, and n is less than m.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: November 2, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Wei Chen, Xiaojun Zheng, Bin Xiong, Tao Jin, Shuai Chen
  • Patent number: 11159995
    Abstract: In various aspects, devices and methods for performing a handover in a MIMO system are described herein. According to at least one aspect, a wireless communication device is described to include one or more receivers that measures beams of a neighbor cell in response to a command of a MIMO communication system. In some aspects, the wireless communication device further includes one or more transmitters that reports information of the beams based on the measured beams to the massive MIMO communication system. The information is, in at least one aspect, incorporated in a Beam Specific-Neighbor Cell Relation (BS-NCR).
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: October 26, 2021
    Assignee: Intel Corporation
    Inventors: Min Huang, Yuan Zhu, Xu Zhang
  • Patent number: 11158939
    Abstract: System and method for determining a position of an antenna array for optimal wireless communication. The system includes a spatially adaptive and beam-steering antenna array configured to control a wireless communications path between a first element and a second element based on a determination of wireless channel gain.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: October 26, 2021
    Assignee: University of South Florida
    Inventors: Mustafa Harun Yilmaz, Ertugrul Guvenkaya, Gokhan Mumcu, Huseyin Arslan
  • Patent number: 11139590
    Abstract: An apparatus includes an antenna assembly including an antenna configured to receive a signal and generate, at a plurality of feed points of the antenna, a plurality of corresponding polarized signals having respective polarization directions different from each other, using the received signal; and a switching circuit configured to periodically switch between the plurality of feed points to select a corresponding one of the polarized signals among the plurality of polarized signals at a point of time based on a switching signal.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: October 5, 2021
    Assignee: U-BLOX AG
    Inventors: Thomas Kaufmann, Roderick Bryant
  • Patent number: 11082098
    Abstract: Methods and apparatus for providing an adaptive beamforming antenna for OFDM-based communication systems. In one embodiment, a method includes forming a matrix (A) of cyclic prefix values and a matrix (B) of tail values from an orthogonal frequency division multiplexed (OFDM) symbol, and forming a summation matrix (S) and a difference matrix (D) from the matrix A and the matrix B. The method also includes multiplying a beamformer preset matrix (W) with the matrix S and the matrix D to determine a matrix (P) and a matrix (Q), and determining a beam identifier from the P and Q matrices.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: August 3, 2021
    Assignee: MARVELL ASIA PTE, LTD.
    Inventor: Hyun Soo Cheon
  • Patent number: 11081791
    Abstract: The present invention is provided with: a plurality of antenna units each including a plurality of antenna elements and a partial synthesizer that synthesizes first output signals of the respective antenna elements and outputs a second output signal; a partial power detection means that measures signal intensities of the respective second output signals; a position determination unit that determines the position of a communication device serving as a communication target based on the measured signal intensities of the respective second output signals; a summing synthesizer that synthesizes the second output signals of the plurality of antenna units and outputs a third output signal; and a phase control unit that controls phases of the respective antenna elements such that a main lobe, which is a beam having a maximum signal intensity for the third output signal, is directed to the position of the communication device determined by the position determination unit.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: August 3, 2021
    Assignee: NEC CORPORATION
    Inventor: Naoki Oshima
  • Patent number: 11082732
    Abstract: A method of detecting CPD in an HFC network is disclosed, where the network includes a return receiver, a cable plant, and a node. The node includes an optical receiver, optical transmitter, a diplexer having forward and return legs, a forward path defined between optical receiver and forward leg, and a return path defined between the optical transmitter and return leg. The optical receiver provides a forward signal to the cable plant and a portion of the forward signal leaks through the return leg and travels to the return receiver. The cable plant contains a CPD source which generates a CPD signal from the forward signal. The CPD signal travels to the return receiver.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: August 3, 2021
    Assignee: Arcom Digital Patent, LLC
    Inventor: Victor M. Zinevich
  • Patent number: 11025288
    Abstract: The present disclosure relates to a transceiver arrangement (1) comprising a transceiver device (2) having at least two transceiver ports (8b, 9b, 10b, 11 b), a beamforming network (5), and at least two antenna ports (12a, 12b, 12c, 12d). The transceiver device (2) comprises at least two low-noise amplifier (LNA) arrangements (3a, 3b, 3c, 3d), where each LNA arrangement (3a, 3b, 3c, 3d) is connected to a respective transceiver port (8b, 9b, 10b, 11 b). The beamforming network (5) is arranged between the antenna ports (12a, 12b, 12c, 12d) and the transceiver ports (8b, 9b, 10b, 11 b), whereby a radio frequency (RF) signal received on an antenna port (12a, 12b, 12c, 12d) traverses the beamforming network (5) prior to being received on the transceiver ports (8b, 9b, 10b, 11 b).
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: June 1, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Kristoffer Andersson
  • Patent number: 11018744
    Abstract: Embodiments provide an innovative solution for finding the beamforming vectors which are based on classical BD. Particularly, embodiments exploit the principle of coherence interval, which suggests that the amplitude and phase of the channel is relatively constant over a small interval on a given t-f resource and thus, there is no need to re-compute the beamforming weights again. Instead, the previously computed weights (on the small interval of the given t-f resource) can be updated. To do this less-computationally-intense update operation, embodiments further exploit a principle from perturbation theory; namely, that when there is a minor change in the entries of a matrix, the decomposition of the matrix and the rank does not change heavily. In embodiments, the need to re-compute the BF weights can therefore be avoided.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: May 25, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Darshan Arvind Patil
  • Patent number: 11005544
    Abstract: A communication device is described comprising a first antenna, a second antenna and a third antenna; a first transceiver configured to communicate using at least the first antenna; a second transceiver configured to communicate using at least the second antenna; and a controller configured to determine whether the third antenna is to be used by the first transceiver or the second transceiver based on a selection criterion and configured to control the first transceiver to communicate using the first antenna and the third antenna if the controller has determined that the third antenna is to be used by the first transceiver and to control the second transceiver to communicate using the second antenna and the third antenna if the controller has determined that the third antenna is to be used by the second transceiver.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: May 11, 2021
    Assignee: Apple Inc.
    Inventors: Thorsten Clevorn, Pablo Herrero, Uri Perlmutter, Ronen Kronfeld
  • Patent number: 10993232
    Abstract: The present 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). According to various embodiments of the present disclosure, a first apparatus in a wireless communication system that includes at least one processor and at least one transceiver operatively coupled with the at least one processor. The at least one processor is configured to obtain a channel matrix based on a signal received from a second apparatus, obtain an integer matrix for integer forcing (IF) based on the channel matrix, and generate channel information based on the integer matrix. The at least one transceiver is configured to transmit the generated channel information to the second apparatus.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: April 27, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seok-Ki Ahn, Sungho Chae
  • Patent number: 10993286
    Abstract: A wireless base station for communicating with a wireless terminal includes: a wireless apparatus configured to perform a first part of signal processing, the first part of signal processing including wireless signal processing among signal processing of the wireless base station; a wireless control apparatus configured to perform a second part of signal processing, the second part of signal processing being different from the first part of signal processing, the signal processing of wireless terminal user data split between the wireless apparatus and the wireless control apparatus of the wireless base station, the wireless apparatus and the wireless control apparatus of the base station connected via a transmission path, and the second part of signal processing of the wireless terminal user data in a unit of packet data convergence protocol packet data unit (PDCP PDU).
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: April 27, 2021
    Assignee: FUJITSU LIMITED
    Inventors: Takayoshi Ode, Yoshiaki Ohta, Shinichiro Aikawa, Yoshihiro Kawasaki
  • Patent number: 10965023
    Abstract: A beamforming system includes a plurality of channelizers and a channel switching module in signal communication with the channelizers. Each channelizer is configured to receive a respective input radio frequency signal and to generate a plurality of respective channels in response to downsampling the respective input radio frequency signal. The channel switching module includes a channel combining circuit configured to selectively combine a common channel generated by each channelizer to form at least one steered analog beam.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: March 30, 2021
    Assignee: RAYTHEON COMPANY
    Inventor: Harry B. Marr
  • Patent number: 10966212
    Abstract: The present disclosure presents a method for a first receiver in a first communication link, the first communication link sharing a communication channel with a second communication link in a wireless network, the first communication link corresponding to a first set of beam directions, the second communication link corresponding to a second set of beam directions, and the method comprises determining whether a communication quality satisfies a predefined criterion; and selecting a first beam direction from the first set of beam directions in response to determining the communication quality satisfying the predefined criterion. The present disclosure also presents a further method for a second transmitter and the further method comprising receiving a beam direction selection signaling and selecting a second beam direction from the second set of beam directions in the second communication link. The first receiver and the second transmitter in respective communication links are also disclosed.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: March 30, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gen Li, Junaid Ansari
  • Patent number: 10931020
    Abstract: A waveguide structure for a compact and scalable dual-polarized antenna array. In one example, a waveguide device comprises septum polarizers dividing common waveguides into first waveguides associated with a first polarization and second waveguides associated with a second polarization. The sets of septum polarizers may be inverted relative to each other to form first groups of four adjacent first waveguides for each type of waveguide. The waveguide device may also include a waveguide feed network including a first waveguide feed stage including waveguide combiner/dividers coupled between the four adjacent waveguides intermediate waveguides. The waveguide device may further include a second waveguide feed stage coupled with the first intermediate waveguides and the second intermediate waveguides, wherein the second waveguide feed stage extends in a direction perpendicular to the first waveguide feed stage.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: February 23, 2021
    Assignee: Viasat, Inc.
    Inventors: Frederic Bongard, Stefano Vaccaro
  • Patent number: 10855350
    Abstract: A responder performing a hybrid beam forming operation by having multiple antennas configured to receive a training packet, responsively generate a beam-formed receive signal by processing the received training packet with previously determined analog beam coefficients, determine whether digital baseband channel (DBC) tracking is indicated based on a tracking-type parameter contained within the received training packet, process a non-precoded training signal within the beam-formed receive signal and responsively determine a DBC estimate, and provide a feedback message having transmitter precoder data based on the DBC estimate.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: December 1, 2020
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Oghenekome Oteri, Rui Yang, Alphan Sahin, Hanqing Lou, Li-Hsiang Sun
  • Patent number: 10778307
    Abstract: A beam scanning and search tracking method and device are provided. The method includes constructing analog beams and performing digital beam-forming to the analog beams so as to form equivalent beams; transmitting reference signals to a second communication node by using the equivalent beams; receiving beam information about the equivalent beams and corresponding channel state information fed back by the second communication node according to the reference signals; performing a beam scanning operation and a search tracking operation by using the beam information and the channel state information.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: September 15, 2020
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xin Su, Qiubin Gao, Rakesh Tamrakar, Runhua Chen, Chuanjun Li, Mengjun Wang, Hui Li, Qiuping Huang
  • Patent number: 10779280
    Abstract: A small base station executes radio communication using multiple antennas. There are set multiple antenna groups that each include all or a portion of the antennas and multiple antenna group patterns that each include at least one of the antenna groups. The small base station transmits reference signals with sequences that differ from one another between antenna groups that are included in the same antenna group pattern. A user apparatus receives the reference signals. Based on a reception result of the reference signals, a use antenna group pattern and at least one use antenna group that are to be used for transmission of a radio signal from the small base station are determined.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: September 15, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Anass Benjebbour, Yoshihisa Kishiyama
  • Patent number: 10778373
    Abstract: Methods and systems consistent with this invention receive a plurality of transmitted signals in a receiver having a plurality of receive elements, wherein each transmitted signal has a different spatial location. Such methods and systems receive the plurality of transmitted signals at the plurality of receive elements to form a plurality of receive element signals, form a combined signal derived from the plurality of receive element signals, and detect each of the plurality of transmitted signals from the combined signal by its different spatial location. To achieve this, methods and systems consistent with this invention generate a plurality of arbitrary phase modulation signals, and phase modulate each of the plurality of receive element signals with a different one of the phase modulation signals to form a plurality of phase modulated signals.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: September 15, 2020
    Assignee: Greenwich Technologies Associates
    Inventor: Carl M Elam
  • Patent number: 10749595
    Abstract: Methods and systems are described for providing end-to-end beamforming. For example, end-to-end beamforming systems include end-to-end relays and ground networks to provide communications to user terminals located in user beam coverage areas. The ground segment can include geographically distributed access nodes and a central processing system. Return uplink signals, transmitted from the user terminals, have multipath induced by a plurality of receive/transmit signal paths in the end to end relay and are relayed to the ground network. The ground network, using beamformers, recovers user data streams transmitted by the user terminals from return downlink signals. The ground network, using beamformers generates forward uplink signals from appropriately weighted combinations of user data streams that, after relay by the end-end-end relay, produce forward downlink signals that combine to form user beams.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: August 18, 2020
    Assignee: VIASAT, Inc.
    Inventors: Kenneth V. Buer, Mark J. Miller
  • Patent number: 10720985
    Abstract: An apparatus comprises a phased array antenna panel, a plurality of amplifier circuits, and a plurality of beamformer circuits. The phased array antenna panel generally comprises a plurality of antenna elements. Each of the amplifier circuits is mounted on the phased array antenna panel adjacent to a respective one of the plurality of antenna elements and each of the amplifier circuits has one or more first ports directly coupled to the respective antenna element. Each of the beamformer circuits is mounted on the phased array antenna panel adjacent to a number of the amplifier circuits. Each of the beamformer circuits has one or more second ports directly coupled to each of the adjacent amplifier circuits. Each of the beamformer circuits is generally configured to exchange a plurality of radio-frequency signals with each of the adjacent amplifier circuits via the second ports.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: July 21, 2020
    Assignee: Integrated Device Technology, Inc.
    Inventors: Tumay Kanar, Chih-Hsiang Ko
  • Patent number: 10707929
    Abstract: A method of processing signals in a radio processing apparatus of a base station may include obtaining a plurality of aggregated data symbols, wherein each of the plurality of aggregated data symbols corresponds to a receive terminal of a plurality of receive terminals of the base station and is composed of transmitted data symbols from a plurality of transmit terminals; applying a compression filter to the plurality of aggregated data symbols to reduce the plurality of aggregated data symbols into a plurality of isolated data symbols, the compression filter being based on channel estimates between the plurality of receive terminals and the plurality of transmit terminals; and transmitting the plurality of isolated data symbols to a baseband processing apparatus of the base station.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: July 7, 2020
    Assignee: Apple Inc.
    Inventors: Wenting Chang, Xu Zhang, Yujun Chen, Jiansong Tian, Guangjie Li, Ye Wu, Feng Zhou
  • Patent number: 10700444
    Abstract: A multi-beam phased antenna structure and a controlling method are provided. The multi-beam phased antenna structure includes a main antenna array and a passive beam forming circuit. The main antenna array includes a plurality of first main antennas and a plurality of second main antennas. The first main antennas are spaced out a predetermined distance. The predetermined distance is related to a coverage of the multi-beam phased antenna structure. The first main antennas and the second main antennas are interleaved. The second main antennas are spaced out the predetermined distance. The passive beam forming circuit includes a plurality of main phase shifters. The main phase shifters are electrically coupled to the second main antennas, such that a difference between a first phase of each of the first main antennas and a second phase of each of the second main antennas is substantially 180°.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: June 30, 2020
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hsi-Tseng Chou, Kevin Chen, Ying-Shan Chen
  • Patent number: 10686511
    Abstract: Apparatuses, methods, and systems for simultaneous communication through multiple beams of a wireless node, are disclosed. One apparatus includes a node, that includes a beamforming network, an antenna array, and a controller. The beamforming network operates to receive a plurality of communication signals and generate a plurality of delayed signals. The antenna array generates an antenna pattern that includes a plurality of beams, wherein the plurality of beams is divided into a plurality of groups. The controller operates to control simultaneous communication of the node with a plurality of transceivers, including the node communicating with a first transceiver through a selected beam of a first group of beams and simultaneously the node communicating with another transceiver through a corresponding beam of another group of beams.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: June 16, 2020
    Assignee: Facebook, Inc.
    Inventors: Hongyu Zhou, Qi Qu, Sam Padinjaremannil Alex
  • Patent number: 10665955
    Abstract: The present invention is a radio signal transmitting antenna (10) including a first wave source (11) including a plurality of antenna elements (A1 to AN) configured to form a first helical beam (H) for OAM (Orbital Angular Momentum) from the plurality of antenna elements (A1 to AN) and output the first helical beam (H) and a second wave source (15) configured to receive the first helical beam (H) and form a second helical beam (L) output in a constant direction and transmits the second helical beam (L). The radio signal transmitting antenna (10) can transmit a helical beam (L) for OAM with a simplified and smaller device configuration.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: May 26, 2020
    Assignee: NEC CORPORATION
    Inventor: Masashi Hirabe
  • Patent number: 10644397
    Abstract: Methods, apparatus and systems for motion-predictive beamforming are disclosed. A method for motion predictive beamforming includes determining a time of a predicted transmission and determining a future position of a virtual reality (VR) receiving device at the time of the predicted transmission. Beamforming parameters are forwarded wireless system that correspond to the future position of the VR receiving device, the time of the predicted transmission, and an error correction margin to cause a transmission of a beam that is formed based on the future position of the VR receiving device, the time of the predicted transmission, and the error correction margin.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: May 5, 2020
    Assignee: INTEL CORPORATION
    Inventors: Kim Pallister, Karthik Veeramani, Vijay Sarathi Kesavan
  • Patent number: 10637605
    Abstract: An apparatus comprises an antenna array having N elements to receive N input streams from a plurality of transmitters and a post-processing device to perform a wavefront de-multiplexing transform on the N input streams corresponding to M orthogonal beams to generate M output streams using a weight matrix having M beam weight vectors (BWVs) associated with the M orthogonal beams, where M and N are positive integers and 1<M?N. The M BWVs are calculated using an optimization procedure based on performance constraints. The performance constraints for one of the M orthogonal beams with an orthogonal beam radiation pattern include designated peak and null positions.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: April 28, 2020
    Assignee: SPATIAL DIGITAL SYSTEMS, INC.
    Inventors: Donald C. D. Chang, Juo-Yu Lee, Tzer-Hso Lin
  • Patent number: 10637587
    Abstract: Embodiments of the present disclosure relate to a communications apparatus and a wireless communications device. The communications apparatus includes M communications sublinks including M sub antenna arrays divided into at least two rows. Two adjacent sub antenna arrays are arranged in an interleaved manner, or the M sub antenna arrays are arranged on a straight line, and the two adjacent sub antenna arrays share n elements.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: April 28, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Peng Yuan, Huafeng Zhang, Yuehua Luo, Shijuan Jia
  • Patent number: 10630429
    Abstract: There is provided a method of retransmission for a base station in a wireless communication system supporting beamforming. The method includes transmitting data at least once using a first beam; detecting a link disconnection within a retransmission request interval at the media access control (MAC) layer; determining, when a link disconnection is detected, a second beam; and retransmitting the data using the second beam.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: April 21, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Doyoung Jung, Sungrok Yoon, Eunyoung Seo, Jongho Oh, Suyoung Park
  • Patent number: 10624051
    Abstract: Disclosed is a system for measuring multi-port amplifier errors (“SME”) of a multi-port power amplifier (“MPA”), where the MPA has a plurality of input ports and a plurality of output ports. The SME may include at least one input coupler, an output array of couplers, an input switch network, an output switch network, and a combiner.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: April 14, 2020
    Assignee: THE BOEING COMPANY
    Inventors: Daniel S. Roukos, John A. Fleming
  • Patent number: 10623971
    Abstract: The disclosure relates to methods, devices, and computer programs in mobile communications. More specifically, the proposed technique relates to facilitating communication between a network node and a wireless device. In particular the disclosure relates to introducing spatial separation as a beam reporting condition in order to mitigate the effects of link failure. The disclosure proposes a method for use in a wireless device, for facilitating communication with a network node. The method comprises performing measurements relating to channel quality and spatial separation of a plurality of candidate downlink beams, determining, based on the performed measurements, a set of downlink beams, such that each beam in the set of beams satisfies a channel quality criterion and a spatial separation criterion, and reporting information defining the determined set of downlink beams to a network node.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: April 14, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Johan Rune, Johan Axnäs, Andres Reial, Henrik Sahlin, Icaro L. J. Da Silva
  • Patent number: 10615852
    Abstract: A multi-beam-former for an antenna array is described, the multi-beam former comprises N transceiver terminals for connecting a transmitter and/or receiver and N antenna terminals for connecting to a respective antenna and a plurality of couplers and matrix phase shifters arranged in an N×N Butler matrix configuration between the N transceiver terminals and the N antenna terminals. At least some of the matrix phase shifters include a switchable matrix phase shifter configured to switch between a respective first phase shift value and a respective second phase shift value; a plurality of bypassable phase shifters arranged between at least some of the couplers and the antenna terminals and configured to switch between a respective further phase shift value and a zero phase shift. The multi-beam former is operable to select one of M different beam angles for a signal, wherein M is greater than N.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: April 7, 2020
    Assignee: NXP B.V.
    Inventors: Patrice Gamand, Philippe Descamps
  • Patent number: 10613411
    Abstract: A phased array that comprises a predetermined number of emitter/receiver elements; said emitter/receiver elements being arranged on a array formed of stacked rows, wherein the emitter/receiver elements in each row of the array are distributed according to a pseudo-random pattern; and the heights of the rows vary according to a pseudo-random pattern.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: April 7, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Daniel Yap, Kevin Geary, Carson R. White
  • Patent number: 10608334
    Abstract: A support of an adjustability of an antenna beam direction is rendered less expensive in terms of implementation by the following measure: a beam forming network switchable between fixedly preconfigured beam forming states is coupled to an antenna array via a switching network switchable between different connecting states according to which the antenna interfaces of the beam forming network are connected to the antennas so that relative positions of the antennas connected to the antenna interfaces differ among the connection states, or more than one beam forming network is provided, each switchable between fixedly preconfigured beam forming states and coupled to a respective set of antennas of an antenna array, respectively, with the beam directions of provided be the beam forming networks being mutually disjoint.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: March 31, 2020
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Mario Schuehler, Lars Weisgerber, Johannes Arendt, Rainer Wansch
  • Patent number: 10601131
    Abstract: An apparatus and method for electromagnetic beam steering and manipulating employ narrow beams in close proximity. The beam width and distance between neighboring beams are arranged around or smaller than the wavelength. In an aspect, a strong beam is steered by a much weaker beam. In another aspect, a strong beam is focused by a small group of much weaker beams.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: March 24, 2020
    Inventor: Chian Chiu Li
  • Patent number: 10578735
    Abstract: Methods and devices use information from the original SAR images to provide measurements that can be applied to corresponding change detection products. This produces reliable registration and alignment for the change products even when the imaging geometry is significantly changed.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: March 3, 2020
    Assignee: THALES HOLDINGS UK PLC
    Inventors: Malcolm Stevens, Richard Stroud
  • Patent number: 10564249
    Abstract: The waveguide structure is for determining Direction-of-Arrival of a signal received by first and second antennas spaced-apart from one another. The waveguide structure has a first input port connectable to the first antenna and connected to a first splitter; a second input port connectable to the second antenna and connected to a second splitter, the second input port being located adjacent to the first input port; a third splitter; and a fourth splitter. The waveguide structure has branches that connect input ports, splitters and output ports such that each output port provides a superposition of the signal received via the first antenna and the signal received by the second antenna. The waveguide structure has a phase shifting system that imparts at least a relative phase shift between the corresponding branches leading away from each corresponding splitter and has at least one cross-over junction formed between two of the branches.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: February 18, 2020
    Assignee: Huawei Technologies Canada Co., Ltd.
    Inventors: Tarek Djerafi, Ke Wu
  • Patent number: 10547116
    Abstract: A system for controlling an interaction of a surface with an impinging electromagnetic wave is provided. The system comprises a surface comprising a plurality of controllable elements, wherein each of the controllable elements is configured to adjust its electromagnetic behavior based on a control signal received by the controllable element, a sensing unit configured to detect a state of an environment of the surface and/or one or more wave attributes of an electromagnetic wave impinging on the surface, a control unit configured to determine, based on the detected state of the environment and/or the one or more wave attributes, a control state of the controllable elements, in which the electromagnetic behavior of the controllable elements is adjusted such that the surface interacts with the impinging electromagnetic wave in a predefined manner, and an adjusting unit configured to determine.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: January 28, 2020
    Assignee: UNIVERSITY OF CYPRUS
    Inventors: Andreas Pitsillides, Christos Liaskos, Angeliki Tsioliaridou, Sotirios Ioannides, Ian Fuat Akyildiz
  • Patent number: 10530448
    Abstract: A switched-beam communication node (e.g., transmitter, receiver, or transceiver) has an antenna array, an (N×N) passive multibeamformer (e.g., Butler matrix (BM)), a phase network, a switch network, and a controller. The phase network has N phase shifters, one for each different beam port of the Butler matrix. The controller configures the node to support either (i) any one of N main beampatterns supported by the Butler matrix by controlling the switch network to select one of the phase shifters and its corresponding BM beam port or (ii) any one of up to at least (N?1) combined beampatterns by controlling the switch network to select two of the phase shifters and their two corresponding BM beam ports. Each combined beampattern is a combination of two phase-shifted main beampatterns. In some embodiments, the node can be configured to provide two concurrent beampatterns for transmit and/or receive operations, thereby supporting space-division multiple-access systems.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: January 7, 2020
    Assignee: Nokia Technologies Oy
    Inventors: Cuong Tran, Robert Fairfield, Ajit Reddy, Dragan Samardzija
  • Patent number: 10502715
    Abstract: Systems and methods for specimen inspection using ultrasonic wave generation are disclosed herein. In one embodiment, an apparatus for inspecting a solid object using ultrasound includes: a pulser having pulser ports for outputting electrical signals. The apparatus also includes a switching array for receiving the signals from the pulser ports as individual channels, and routing the signals to individual elements of a transmitter array. The apparatus also includes the transmitter array, where each element of the transmitter array generates ultrasound in the solid object in response to the signal received from the switching array.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: December 10, 2019
    Assignee: Quest Integrated, LLC
    Inventors: Haraprasad Kannajosyula, Phillip D. Bondurant, Ali Minachi
  • Patent number: 10505599
    Abstract: A plurality of circuit units of a matrix processor of a communication device are used to decompose a plurality of channel matrices, corresponding to a plurality of orthogonal frequency division multiplexing (OFDM) tones, over a plurality of cycles to determine matrix equalizer coefficients. Decomposing the plurality of channel matrices includes determining respective modes of operation for respective ones of the circuit units for respective ones of the cycles. The respective modes of operation are selected from a set of modes that includes at least one of a bypass mode for propagating input signals to output signals without altering the input signals and an idle mode for saving power when a particular circuit unit is not needed during a particular cycle. The respective circuit units are individually controlled to operate in the determined respective modes during the corresponding cycles. The determined matrix coefficients are then applied to received data signals.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: December 10, 2019
    Assignee: Marvell International Ltd.
    Inventors: Chao Shan, Mao Yu, Yong Ma
  • Patent number: 10498409
    Abstract: A first communication device transmits a plurality of training signals to a second communication device via a communication channel. The first communication device receives feedback generated at the second communication device based on the plurality of training signals. The feedback includes steering matrix information for a plurality of orthogonal frequency division multiplexing (OFDM) tones and (ii) additional phase information corresponding to channel estimates obtained for the plurality of OFDM tone. The first communication device constructs, based on the steering matrix information, a plurality of steering matrices corresponding to the plurality of OFDM tones, and compensates, using the additional phase information, the plurality of steering matrices to reduce phase discontinuities between the OFDM tones. The first communication device steers, using the compensated steering matrices, at least one transmission via the communication channel to the second communication device.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: December 3, 2019
    Assignee: Marvell World Trade Ltd.
    Inventors: Rui Cao, Hongyuan Zhang