Including A Steerable Array Patents (Class 342/368)
  • Patent number: 11329381
    Abstract: An antenna includes a first dielectric substrate and a first feeding element. The first dielectric substrate includes a first insulating layer, and a first radiation plate including a first opening that exposes an upper surface of the first insulating layer. The first feeding element is disposed in the first opening to penetrate the first insulating layer in a direction extending toward a lower surface of the first dielectric substrate. The first feeding element is insulated from the first radiation plate by the first insulating layer. The first feeding element includes a first conductive plate having an upper surface located on a same plane as an upper surface of the first radiation plate.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: May 10, 2022
    Assignee: SAMSUNG ELECTRONICS CO.. LTD.
    Inventors: Young Ki Lee, Sun Woo Lee, Dooseok Choi
  • Patent number: 11321549
    Abstract: A system that exploits collaboration between a plurality of spatially distributed RFID readers to enhance the range of commercial passive RFID tags, without alteration to the tags. The system uses distributed MIMO to coherently combine signals across geographically separated RFID readers. It is capable of inferring the optimal beamforming parameters to beam energy to a tag without any initial knowledge of the location or orientation of the tags.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: May 3, 2022
    Assignee: CARNEGIE MELLON UNIVERSITY
    Inventors: Swarun Kumar, Haojian Jin, Jingxian Wang, Junbo Zhang, Rajarshi Saha
  • Patent number: 11323158
    Abstract: Apparatus and methods for beamforming communication systems with power control based on antenna pattern configuration are provided. In certain embodiments, a beamforming communication system includes an antenna array including a plurality of antenna elements. The beamforming communication system further includes a plurality of signal conditioning circuits operatively associated with the antenna elements, and an antenna array management circuit that generates a plurality of control signals that individually control the signal conditioning circuits. The antenna array management circuit achieves a desired level of power control based on generating the control signals to select an antenna pattern configuration associated with a desired power control level.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: May 3, 2022
    Assignee: Skyworks Solutions, Inc.
    Inventors: Dominique Michel Yves Brunel, William J. Domino, Stephen Joseph Kovacic
  • Patent number: 11307354
    Abstract: The technology described herein relates to a wavelength selective switch (WSS). An output port arrangement solution of an optical fiber array of the WSS includes: centers of output ports are arranged along a curve or along a combination line that includes a line segment, and a straight line connecting centers of any two output ports on the curve or the combination line does not pass through an input port. A light beam received from the input port is diffracted to the output ports through an LCoS panel, and a straight line that all diffraction orders that are generated after the diffraction pass through intersects with the curve or the line segment, and there is only one intersection point.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: April 19, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Lei Mao, Liangjia Zong
  • Patent number: 11309901
    Abstract: A phase locked loop arrangement (1) beamforming comprises two or more phase locked loops. The loops include a phase comparator (21, 22) and an adjustable charge pump arrangement (31, 32) having a loop filter (51, 52) and charge pump current source (41, 42) with an adjustment input (?adj) connected to the loop filter (51, 52) to inject an adjustable charge pump current into the loop filter. A constant current source (71, 72) is configured to inject a first predetermined charge current into the loop filter (51, 52). The adjustable charge pump arrangements (31, 32) are connected to the respective phase comparators (21, 22) to provide a voltage control signal (vctrl) to an oscillator (61, 62) of the respective phase adjustable phase locked loop (11, 12) in response to the respective control signal (up, down) and to generate a phase deviation between the first and one of the at least one second oscillator signals (fosc1, fosc2) based on an adjustment signal applied to the adjustment input (?adj).
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: April 19, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Tony Påhlsson, Staffan Ek, Henrik Sjöland
  • Patent number: 11294061
    Abstract: An apparatus for scanning a scene comprising a light transmitter including a one-dimensional phased array; wherein the light transmitter is fed by a frequency swept scanning laser; and a light receiver including a one-dimensional phased array; the one-dimensional phased array of the light receiver disposed orthogonally to the one-dimensional phased array of the transmitter; wherein light received by the light receiver is enabled to be interfered with light from the frequency swept scanning laser.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: April 5, 2022
    Assignee: Acacia Communications, Inc.
    Inventors: Christopher Doerr, Long Chen
  • Patent number: 11296745
    Abstract: A mobile station includes: a baseband processor; and an RF front-end module connected to the baseband processor and including a plurality of antenna modules and a controller. The plurality of antenna modules each include an antenna element and a variable phase shifter connected to the antenna element. The baseband processor is configured to output a beam control signal indicating a direction of an antenna beam formed by the plurality of antenna elements. The controller is configured to receive the beam control signal from the baseband processor, determine a phase control amount for each variable phase shifter on the basis of the beam control signal, and control each variable phase shifter on the basis of the determined phase control amount.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: April 5, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Tatsuhiro Shimura
  • Patent number: 11290980
    Abstract: According to one embodiment, an electronic apparatus mounted on a moving object, includes at least one variable directivity antenna; controlling circuitry configured to acquire a traveling position of the moving object and determine an antenna pattern for the variable directivity antenna based on a location of a ground apparatus to be a communication target and the acquired traveling position; and a communication circuit configured to transmit positional information including the traveling position or receive control information from the ground apparatus via the variable directivity antenna for which the determined antenna pattern is set.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: March 29, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventor: Toshihisa Nabetani
  • Patent number: 11283150
    Abstract: An antenna module includes a dielectric substrate, a plurality of antenna elements, and an RFIC having a plurality of power supply terminals configured to supply power to each of the plurality of antenna elements via a power supply line. The plurality of antenna elements include a first antenna element and a second antenna element disposed along a first direction connecting two points within a region, the first antenna element is located on the side of a center of the region relative to the second antenna element, and the number of antenna elements to which power is supplied by a power supply line for supplying power to the first antenna element is smaller than the number of antenna elements to which power is supplied by a power supply line for supplying power to the second antenna element.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: March 22, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Kota Arai
  • Patent number: 11284407
    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may transmit a precoded reference signal to prevent interference with an incoming signal from a base station. The UE may determine a precoder for the reference signal based at least in part on a whitening matrix. In some examples, the UE may determine the precoder based at least in part on the whitening matrix and an effective channel between the base station and the UE. The precoded reference signal may be used by devices in other wireless communications systems to avoid interfering with a signal being received by the UE. In some examples, the UE may alternatively or additionally transmit an indication of the number of additional layers of the link between the UE and the base station that may be nulled out for a second link.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: March 22, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Seyed Ali Akbar Fakoorian, Xiaoxia Zhang, Taesang Yoo, Zhifei Fan
  • Patent number: 11265123
    Abstract: A method for a terminal to transmit and receive signals for position estimation in a wireless communication system includes: receiving a downlink (DL) positioning reference signal (PRS) from each of a serving base station and reference base stations; measuring phase differences between sinusoidal components included in the DL PRSs for each of the serving base station and the reference base stations; generating an uplink (UL) PRS on the basis of the measured phase differences; and transmitting the UL PRS to the serving base station, wherein the terminal may report the phase difference measured for the serving base station and the phase differences measured for the reference base stations through the transmission of the UL PRS to the serving base station. The terminal is capable of communicating with at least one of another terminal, a terminal related to an autonomous driving vehicle, a base station or a network.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: March 1, 2022
    Assignee: LG Electronics Inc.
    Inventors: Myeongjin Kim, Sangrim Lee
  • Patent number: 11265046
    Abstract: Examples disclosed herein relate to a Multiple-Input Multiple-Output (MIMO) radar for virtual beam steering. The MIMO radar has a plurality of transmit antennas and a receive antenna array having a plurality of radiating elements. The MIMO radar also includes a digital signal processor (DSP) configured to synthesize a virtual receive array having N×M receive subarrays from the plurality of transmit antennas and the receive antenna array, where N is the number of transmit antennas and M is the number of receiving elements. Other examples disclosed herein relate to a method of virtual beam steering.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: March 1, 2022
    Inventor: Jun Fang
  • Patent number: 11251523
    Abstract: Aspects of the disclosed technology relate to an active array system that can form and steer a directed beam across its aperture. The disclosed array system utilizes a novel configuration that significantly reduces a number of transmit and receive elements. In some aspects, the disclosed array system can be configured with a modular design, for example, to permit the extension of the transmit/receive array, e.g., to increase/decrease aperture size. In other aspects, the disclosed array system may be configured to dispose the elements of either the first or second group of radiators in a modular fashion.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: February 15, 2022
    Assignee: ST TECHNOLOGIES LLC
    Inventors: Philippe Kassouf, Long Bui, Jeb Binkley
  • Patent number: 11245290
    Abstract: The present disclosure relates to an apparatus and a method for performing transmission and reception of wireless power. The apparatus comprises: a transmission signal processing unit configured to generate a transmission data signal and perform a modulation and an amplification; a transmission antenna configured to convert the transmission data signal into an RF signal and transmit the RF signal; at least one reception antenna configured to receive at least one of the RF signal or an external signal received from the outside; a wireless power reception unit configured to harvest power from the RF signal received through the at least one reception antenna; and a reception signal processing unit configured to demodulate the external signal received through the at least one reception antenna. Since the RF signal, which is radiated by the apparatus itself, is received again and utilized for power charging, energy can be recycled.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: February 8, 2022
    Assignee: LG Electronics Inc.
    Inventors: Dongkyu Kim, Sangrim Lee, Hojae Lee
  • Patent number: 11240682
    Abstract: Certain aspects of the present disclosure provide methods and apparatus for enhancing a beamforming training procedure.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: February 1, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Assaf Yaakov Kasher, Amichai Sanderovich, Solomon Trainin, Alecsander Petru Eitan
  • Patent number: 11234294
    Abstract: This application provides example data dimension reduction methods, apparatus, and systems, computer devices, and storage mediums, and relates to the communications field. One example method includes receiving an antenna domain received signal, where the antenna domain received signal includes an uplink signal that is received from UE by an array antenna corresponding to an RRS, wherein the antenna domain received signal is a time domain signal, a dimension of the antenna domain received signal is N1, and N1 is an integer greater than 1. A received beam weight is obtained based on channel information of the UE. Dimension reduction is performed on the antenna domain received signal by using the received beam weight to obtain a beam domain received signal, where the beam domain received signal is a frequency domain signal, a dimension of the beam domain received signal is N2, and 0 <N2<N1.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: January 25, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Quanzhong Gao, Heng Xu, Guochen Liu, Liwei Ge, Jianbiao Xu, Senbao Guo
  • Patent number: 11231554
    Abstract: Devices and methods for protecting electro-optical instruments includes a transparent substrate and a conductive film layer on the substrate. The film layer may be perforated with an array of holes and may be configured to attenuate RF/microwave electromagnetic radiation. The devices may include a plurality of optical waveguides having a first end and a second end, wherein the first end of each optical waveguide is disposed over the substrate and passes through a respective hole of the array of holes such that each hole includes at least one optical waveguide. The waveguide may be configured to capture incident light from the second end and guide the incident light to the first end through the hole.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: January 25, 2022
    Assignee: The Boeing Company
    Inventor: Tai Anh Lam
  • Patent number: 11233558
    Abstract: Embodiments of this application provide a beam tracking method implemented by a terminal device, including: determining, N first beam reference quality values, where the N first beam reference quality values respectively correspond to N beams; selecting, M beams from the N beams based on the N first beam reference quality values and a cell to which each of the N beams belongs, where the M beams belong to a serving cell of the terminal device; and indicating the selected M beams to a network-side device providing a service for the terminal device.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: January 25, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xun Tang, Wei Quan
  • Patent number: 11233326
    Abstract: An optical feed network (OFN) for an RF phased antenna array includes a single free-space optical beamformer that supports all of the RF electrical feed signals for the RF phased antenna array to steer an RF beam. The free-space optical beamformer can more easily scale to accommodate larger array sizes than either the discrete fiber channel or PIC implementations. Furthermore, certain embodiments of the optical beamformer avoid the complexity of having to compute FFTs for each channel to steer the beam, instead relying on the inherent function of an imaging lens to perform the FFT, which in turn facilitates rapid steering.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: January 25, 2022
    Assignee: Raytheon Company
    Inventors: Sean D. Keller, Gerald P. Uyeno, David G. Manzi, Benn Gleason
  • Patent number: 11201673
    Abstract: An optical communications transmitter for use in free space communication from the transmitter to a receiver, the transmitter including a light input and an optical fiber array for directing the light input. The optical communications transmitter further includes an optical phased array for receiving the light input from the optical fiber array and transmitting a light output, the optical phased array being configured for modifying a relative phase of the light input such that the light output exhibits a predetermined far-field intensity pattern.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: December 14, 2021
    Assignee: BridgeSat, Inc.
    Inventors: Paul Searcy, Barry A. Matsumori
  • Patent number: 11201651
    Abstract: An electronic apparatus is configured to be a transmitting apparatus in D2D communication, and comprises: a transceiver; and one or more processing circuits configured to perform the following operations: enabling, on the basis of the electronic apparatus and position information of a receiving apparatus corresponding to the electronic apparatus, the transceiver to request a server in a wireless communication system for beamforming information; if the electronic apparatus does not receive beamforming information from the server, triggering a beam training process between the electronic apparatus and the receiving apparatus; and after the beam training process is completed, enabling the transceiver to report a result of the beam training process to the server. Employing the electronic apparatus, server, and wireless communication method enables combination of advantages of two beamforming techniques, i.e.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: December 14, 2021
    Assignee: SONY CORPORATION
    Inventors: Pingping Xu, Yicheng Xu, Weiwei Wang, Pen-shun Lu
  • Patent number: 11197172
    Abstract: A reception method and apparatus for use in a multi-cell orthogonal frequency division multiple access (OFDMA) wireless system. In a unicast receive mode during a first receive time period, a first group of orthogonal frequency division multiplexing (OFDM) symbols is received by a mobile device from multiple of a plurality of antennas at a serving base station. In a single-frequency-network (SFN) receive mode during a second receive time period, a second group of OFDM symbols is received by the mobile device from one of a plurality of antennas at the serving base station. The transition between the first receive time period and the second receive time period occurs during a cyclic prefix or a cyclic postfix between OFDM symbols, and the plurality of antennas produce a first beam pattern during the unicast receive mode and a second beam pattern during the SFN receive mode.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: December 7, 2021
    Assignee: NEO WIRELESS LLC
    Inventors: Titus Lo, Xiaodong Li
  • Patent number: 11190224
    Abstract: Methods, systems, and devices are described for transceiver architecture for millimeter wave wireless communications. A device may include two transceiver chip modules configured to communicate in different frequency ranges. The first transceiver chip module may include a baseband sub-module, a first radio frequency front end (RFFE) component and associated antenna array. The second transceiver chip module may include a second RFFE component and associated antenna array. The second transceiver chip module may be separate from the first transceiver chip module. The second transceiver chip module may be electrically coupled to the baseband sub-module of the first transceiver chip module.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: November 30, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Haim Mendel Weissman, Lior Raviv, Xiaoyin He, Vladimir Aparin
  • Patent number: 11184055
    Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a wireless device to perform multiple-input, multiple-output (MIMO) transmissions using a reduced number of antennas (e.g., a number of transmit antennas that is smaller than a number of layers of the MIMO transmission). The MIMO transmission may communicate multiple streams of data to a second wireless device. The MIMO transmission may further be used for sensing applications, e.g., based on reflection of the MIMO transmission.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: November 23, 2021
    Assignee: Apple Inc.
    Inventors: Ran Shimon, Michael Kerner, Mik Cohen
  • Patent number: 11183770
    Abstract: An RF antenna feed module uses an optical feed network and photo-detectors to generate RF feed signals to drive a dual polarization RF antenna to produce an RF beam with a variable polarization state. The optical feed network and suitably the photo-detectors are monolithically fabricated PIC. Multiple modules may be configured to drive a dual polarization RF phased array. A single feed module can produce RF feed signals over a frequency range of at least 300 GHz.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: November 23, 2021
    Assignee: Raytheon Company
    Inventors: Benn Gleason, Sean D. Keller, Gerald P. Uyeno, John P. Gianvittorio, Larry C. Martin
  • Patent number: 11183769
    Abstract: A metasurface includes a dielectric material, a ground plane on a back side of the dielectric material; and at least one conductive element on a top surface of the dielectric material, wherein the at least one conductive element includes at least one of a ground-backed dipole or a slot array.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: November 23, 2021
    Assignee: THALES CANADA INC.
    Inventors: Alon Green, Peter Timmermans, Walter Kinio, Alex M. H. Wong, Philip Christian, George V. Eleftheriades
  • Patent number: 11177579
    Abstract: Embodiments of the present disclosure provide a reflector antenna and an antenna alignment method. The reflector antenna includes: a feed array, including N feeds, where N is an integer greater than 1; a reflector, configured to: reflect a signal from the feed array or reflect a signal to the feed array; and M radio frequency channels, where the radio frequency channel includes at least one of an adjustable gain amplifier or a phase shifter, configured to control a signal, M is an integer greater than 1 and less than N, each radio frequency channel corresponds to one of the N feeds, a correspondence between the radio frequency channel and the feed is changeable, and the radio frequency channel transmits or receives a signal by using a corresponding feed.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: November 16, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yanxing Luo, Hao Long, Fusheng Tang, Zhuo Zeng
  • Patent number: 11171702
    Abstract: The invention relates to a server radio node (110) and a client radio node (120) and methods performed in the server radio node (110) and the client radio node (120) for receiving and transmitting signals in a wireless communication network (100) are provided. The server radio node (110) determines a receiving time-spatial sweeping pattern for the server radio node (110). The client radio node (120) determines a transmitting time-spatial pattern based on a predefined rule. The server radio node (110) receives the signals from the client radio node (120) based on the receiving time-spatial sweeping pattern. The signals are transmitted by the client radio node (120) according to the determined transmitting time-spatial pattern.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: November 9, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gen Li, Jinhua Liu
  • Patent number: 11171718
    Abstract: Disclosed embodiments relate satellites using a Software-Defined Radio (“SDR”) system. In one example, a geostationary (GEO) satellite includes an antenna system including multiple antennas, each configured to provide a spot beam having an adjustable throughput for a terrestrial coverage area while the antenna is in an active state and the satellite is in orbit above the Earth, a front-end subsystem communicatively coupled to the antenna system having an input side including an input filter and an analog-to-digital converter, and an output side including an output filter and a digital-to-analog converter, and a software defined radio (“SDR”) communicatively coupled to the antenna system via the front-end subsystem. The SDR, in response to a surge modification request, modifies a throughput of each active antenna by increasing or decreasing a share of a satellite power budget allotted to the antenna by deactivating or activating a previously active or previously inactive antenna, respectively.
    Type: Grant
    Filed: June 28, 2020
    Date of Patent: November 9, 2021
    Assignee: Astranis Space Technologies Corp.
    Inventors: John Gedmark, Siamak Ebadi, Ryan McLinko, Steve Joseph, Robert Kummerer, Adam Bily, Kagan Topalli
  • Patent number: 11165160
    Abstract: A method and apparatus for testing an antenna are described.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: November 2, 2021
    Assignee: KYMETA CORPORATION
    Inventors: Taylor Stokes, J T Repp, Ron Radko, Jonas Nicholson, Alexander L. Bautista, Jr.
  • Patent number: 11159380
    Abstract: This disclosure provides systems and methods for routing and topology management of computer networks with steerable beam antennas. A network controller can generate an input graph for a first time period. The input graph can have a plurality of vertices each representing a respective moving node and a plurality of edges each representing a possible link between a pair of moving nodes. The input graph also can include corresponding location information for each of the moving nodes during the first time period. A solver module can receive information corresponding to the input graph, a maximum degree for each vertex in the input graph, and a set of provisioned network flows. The solver module can determine a subgraph representing a network topology based on the input graph, the maximum degree for each vertex in the input graph, and the set of provisioned network flows, such that a number of edges associated with each vertex in the subgraph does not exceed the maximum degree for each vertex.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: October 26, 2021
    Assignee: Waymo LLC
    Inventors: David Mandle, Yaoyao Gu, Brian Barritt, Tatiana Kichkaylo
  • Patent number: 11158931
    Abstract: The present disclosure relates to a terminal housing and a terminal. The terminal housing includes a rear cover, a radio frequency module and an antenna array. The radio frequency module is coupled to the antenna array. The rear cover includes a first area and a second area where the second area is different from the first area, and the first area is coupled to the second area through insulating material. The first area includes a plurality of antenna array elements, each of the plurality of antenna array elements is made of conductive material, and any two adjacent antenna array elements are coupled using insulating material, and the plurality of antenna array elements form the antenna array.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: October 26, 2021
    Assignee: Beijing Xiaomi Mobile Software Co., Ltd.
    Inventor: Yaqi Liu
  • Patent number: 11131602
    Abstract: An intermediate signal is separated into a first sub-signal and a second sub-signal according to a separation coefficient having a known real value. The first sub-signal is delivered to a first photonic circuit containing at least one photonic device to be characterized and a first photonic part. The second sub-signal is delivered to a second photonic circuit containing a second photonic part having a same transfer function as the first photonic part but lacking the at least one photonic device. Optical output signals from the first and second photonic circuits are converted into first and second electrical signals. Losses of the at least one photonic device are determined from processing the electrical signals and from the known real value of the separation coefficient.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: September 28, 2021
    Assignee: STMicroelectronics (Crolles 2) SAS
    Inventors: Patrick Le Maitre, Jean-Francois Carpentier
  • Patent number: 11128329
    Abstract: A system for self-interference cancellation includes a frequency downconverter that decomposes a sampled RF transmit signal into an in-phase transmit signal and a quadrature transmit signal; a first analog vector modulator that scales the transmit signals to generate first scaled transmit signals; a second analog vector modulator that scales delayed transmit signals to generate second scaled transmit signals; a frequency upconverter that recomposes the scaled transmit signals into an RF self-interference cancellation signal; and a receive coupler that that combines the RF self-interference cancellation signal with a RF receive signal to reduce self-interference.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: September 21, 2021
    Assignee: Kumu Networks, Inc.
    Inventors: Wilhelm Steffen Hahn, Alfred Riddle, Ernie Landi, Dai Sieh, Jung-Il Choi, Mayank Jain
  • Patent number: 11125848
    Abstract: Systems and methods are provided to simultaneously determine both angle of arrival (AoA) and angle of departure (AoD) of a signal transmitted between two or more radio frequency (RF)-enabled wireless devices (e.g., such as BLE modules). The disclosed systems and methods may be so implemented in one embodiment to determine AoD even in the case where the transmitting wireless device is at the same time operating in a departure (or AoD) transmitting mode by transmitting a RF signal from multiple antenna elements of at least one switched antenna array using a given switching pattern or sequence implemented by an array switch.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: September 21, 2021
    Assignee: Silicon Laboratories Inc.
    Inventor: Jere M. Knaappila
  • Patent number: 11115138
    Abstract: Techniques are disclosed for detecting obstruction of a device's antenna(s) and then changing an operation of the device. A transmission time at which an antenna of an electronic device transmitted a signal can be identified. A response signal can be detected that was received at a receiver of the electronic device subsequent to the transmission time. Based on the response signal and on the transmission time, one or more response-signal characteristics can be determined. Based on the one or more response-signal characteristics, it can be determined that the antenna or that another antenna of the electronic device is at least partly blocked from emitting or receiving signals. In response to determining that the antenna is at least partly blocked, a changed type of operation can be identified, and the changed type of operation can be performed.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: September 7, 2021
    Assignee: Apple Inc.
    Inventors: Celalettin U. Bas, Joachim S. Hammerschmidt, Ming Lei, Pengcheng Zhan
  • Patent number: 11108475
    Abstract: An example method for testing a base station that supports multi-carrier transmission using multiple transceiver units comprises transmitting an interfering test signal in one or more transmit bands for the base station apparatus, using the multiple transceiver units and the antenna array, where the interfering test signal has a total EIRP at least approximately equal to the sum of the respective rated maximum EIRPs for each of the predetermined number of simultaneous carriers. This example method further comprises transmitting a desired test signal to the base station apparatus, in a receive band for the base station apparatus, using a test signal generator and a test antenna separate from the base station apparatus, and evaluating a receiver sensitivity for the base station apparatus, based on the desired test signal, while the interfering test signal is being transmitted.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: August 31, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Thomas Chapman, Asif Ali Khan
  • Patent number: 11095340
    Abstract: Disclosed is an electronic device including housing, a first antenna array positioned on the housing and/or inside the housing, a second antenna array spaced from the first antenna array and positioned on the housing and/or inside the housing, at least one wireless communication circuit electrically connected to the first antenna array and the second antenna array, and at least one communication processor transmitting and/or receiving a signal through the at least one wireless communication circuit, using beamforming. In addition, various embodiments as understood from the specification are also possible.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: August 17, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sungchul Park, Suha Yoon, Euichang Jung
  • Patent number: 11092872
    Abstract: Structures including an optical phased array and methods of fabricating such structures. A first optical phased array includes a first plurality of antennas. A plurality of phase shifters are respectively coupled to the first plurality of antennas. A second optical phased array includes a second plurality of antennas, and a third optical phased array includes a third plurality of antennas. The second optical phased array is located in a first direction relative to the first optical phased array. The third optical phased array is located in a second direction relative to the first optical phased array. The second direction is different from the first direction.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: August 17, 2021
    Assignee: GLOBALFOUNDRIES U.S. INC.
    Inventors: Yusheng Bian, Ajey Poovannummoottil Jacob
  • Patent number: 11095978
    Abstract: A microphone assembly includes: at least three microphones for capturing audio signals from the user's voice, the microphones defining a microphone plane; an acceleration sensor for sensing gravitational acceleration in at least two orthogonal dimensions so as to determine a direction of gravity; a beamformer unit for processing the captured audio signals in a manner so as to create a plurality of N acoustic beams, a unit for selecting a subgroup of M acoustic beams from the N the acoustic beams; an audio signal processing unit having M independent channels for producing an output audio signal for each of the M acoustic beams; a unit for estimating the speech quality of the audio signal in each of the channels; and an output unit for selecting the signal of the channel with the highest estimated speech quality as the output signal of the microphone assembly.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: August 17, 2021
    Assignee: Sonova AG
    Inventors: Xavier Gigandet, Timothee Jost
  • Patent number: 11088447
    Abstract: A system includes a base station. The base station includes: a laser assembly that transmits an optical control beam to a phased array antenna external to and remote from the base station; and a radio frequency (RF) transceiver that transmits a radio signal to the phased array antenna. The phased array antenna deflects the radio signal arriving at the phased array antenna in a particular direction indicated by the optical control beam. The particular direction of the deflected radio signal is toward a particular user device.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: August 10, 2021
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Donna L. Polehn, Fred Weisbrod
  • Patent number: 11082909
    Abstract: A radio communication route enables communication from an originating ground station to a destination ground station via one of multiple randomly orbiting satellites with no active attitude control. The ground stations and satellites include multi-feed parabolic antennas for receiving radio signals from and transmitting radio signals in multiple directions. The satellites store an address of a destination ground station from which an initial information signal is transmitted and antenna information identifying the satellite antenna feed on which the initial information signal was received. Plural satellite antennas transmit linking information identifying the satellite to the originating ground station.
    Type: Grant
    Filed: August 22, 2020
    Date of Patent: August 3, 2021
    Assignee: Star Mesh LLC
    Inventor: Gerald R. Schloemer
  • Patent number: 11070766
    Abstract: This invention disclosure relates to a community access television (CATV) signal distribution system which improves signal isolation issues for systems which are distributing both CATV signals and in-home entertainment (IHE) signals. The signal distribution system includes a signal input port, a first multi-port signal splitter and a second multi-port signal splitter. The first multi-port signal splitter is coupled to the signal input port through a first diplexer, and the second multi-port signal splitter is coupled to the signal input port through a second diplexer. In some embodiments the first diplexer high-pass node and the second diplexer high-pass node are coupled together. In some embodiment the signal distribution system includes a signal output port coupled to the signal input port through a third diplexer. The high-pass node of the third diplexer is coupled to the high-pass node of the first diplexer.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: July 20, 2021
    Assignee: PPC BROADBAND, INC.
    Inventor: Erdogan Alkan
  • Patent number: 11063344
    Abstract: The present disclosure includes an antenna and a base station including an antenna. The antenna includes at least one unit cell that includes a flap layer, a feed network, and a patch. The flap layer includes a plurality of flaps. The feed network is positioned below the flap layer and includes a plurality of feed lines. Each of the plurality of feed lines includes an excitation port and a transmission line. The patch has a quadrilateral shape and is positioned above the flap layer such that an air gap is present between the patch and the flap layer.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: July 13, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hamid Reza Memar Zadeh Tehran, Gary Xu, Won Suk Choi
  • Patent number: 11047990
    Abstract: An antenna enclosure includes a sensor and a Global Navigation Satellite System (GNSS) antenna. Within the antenna enclosure, sensor data is combined with GNSS information to produce a RF communication signal, wherein the sensor data is out-of-band from the GNSS information. The RF communication signal is transmitted utilizing a GNSS antenna data link to a receiver side. On the receiver side, the RF communication signal is split into a GNSS RF path and a sensor RF path. The GNSS signals are transmitted to the GNSS receiver via the GNSS RF path. A sensor RF communication signal is de-modulated, and the sensor data is transmitted to the GNSS receiver. When the GNSS antenna data link is bi-directional, information may be transmitted from the GNSS receiver to the antenna enclosure via the GNSS antenna data link.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: June 29, 2021
    Assignee: NovAtel Inc.
    Inventors: Jerry Allan Freestone, Teresia Cheuk Wa Lee, Darrell James Anklovitch
  • Patent number: 11043992
    Abstract: An antenna apparatus includes a number of antenna devices disposed to surround a center. M switches are connected to the plurality of antenna devices, M being an integer equal to or greater than 1. The of antenna devices include N antenna device groups and each of the N antenna device groups includes M antenna devices. N is an integer equal to or greater than 1. For each of the M switches, the mth switch is connected to the mth antenna device of the each of the N antenna device groups, m being an integer ranging from 1 to M.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: June 22, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Dong In Oh, Sun In Jeong
  • Patent number: 11036030
    Abstract: A Micro-Electromechanical System (MEMS) device having improved thermal management, and methods of fabricating the same are described. Generally, the device includes a piston layer suspended over a surface of a substrate by posts at four corners thereof, the piston layer including an electrostatically deflectable piston and a number of flexures through which the piston is coupled to the posts. A faceplate including an aperture through which the piston is exposed is suspended over the piston layer. Thermal sinking structures project from the surface of the substrate and extend through void spaces between the posts, the flexures and the piston of the piston layer to provide thermal management of the piston layer. The thermal posts substantially fill the void spaces without contacting either the flexures or the piston, and without altering a deflection gap between the piston and the surface of the substrate. Other embodiments are also described.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: June 15, 2021
    Assignee: SILICON LIGHT MACHINES CORPORATION
    Inventor: Sae Won Lee
  • Patent number: 11018427
    Abstract: Base station antennas include a plurality of multiplexer filters and a multi-column array of radiating elements that includes a plurality of sub-arrays. Each filter may have a first and second ports that are configured to pass RF signals in respective first and second frequency bands and a third common port that is coupled to a respective one of a plurality of sub-arrays. These antennas also include first frequency band ports that are coupled to the first ports of respective subsets of the multiplexer filters and second frequency band ports that are coupled to the second ports of at least some of the multiplexer filters. The antenna may operate as a MIMO sector antenna in the first frequency band and as a sector-splitting antenna in the second frequency band.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: May 25, 2021
    Assignee: CommScope Technologies LLC
    Inventor: Martin L. Zimmerman
  • Patent number: 11012290
    Abstract: A method includes receiving beacons originating from endpoints. The beacons are received during a single beacon interval and are sent using a power strength to reach nodes within physical proximity of the endpoints. The method also includes establishing a list including multiple endpoints from which a node receives the beacons at more than a threshold percentage of the beacon intervals. The method includes detecting that a threshold number of the beacon intervals have passed since receiving a most recent beacon from an endpoint. The method includes outputting a ping at full power strength to the endpoint requesting a response. When the response is not received from the endpoint, the method includes transmitting an outage alarm to a next topologically higher layer of a mesh network. The outage alarm includes an identification of the endpoint and a timestamp indicating when the first node received the most recent beacon from the endpoint.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: May 18, 2021
    Assignee: Landis+Gyr Innovations, Inc.
    Inventor: Ruben Salazar Cardozo
  • Patent number: RE49001
    Abstract: An access point that performs dynamic selection of an electronic-device-specific receive antenna pattern of an antenna for use when receiving a frame from an electronic device in a WLAN is described. In particular, during operation the access point may determine the receive antenna pattern of the antenna that is used when receiving the frame from the electronic device. Then, the access point may store, in memory, information that specifies the receive antenna pattern. Moreover, when the access point predicts that the electronic device will transmit a frame to the access point within a subsequent time interval, the access point may select the receive antenna pattern and may set an antenna pattern of the antenna to the receive antenna pattern. Next, the access point may receive the frame from the electronic device using the receive antenna pattern.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: March 29, 2022
    Assignee: ARRIS Enterprises LLC
    Inventors: Shuai Xiao, Chonggang Li, Huaqing Zeng, Michael Ren