Patents Examined by David S Huang
  • Patent number: 10432312
    Abstract: Aspects of the subject disclosure may include, for example, a node device includes an interface configured to receive first signals. A plurality of coupling devices are configured to launch the first signals on a transmission medium as a plurality of first guided electromagnetic waves at corresponding plurality of non-optical carrier frequencies, wherein the plurality of first guided electromagnetic waves are bound to a physical structure of the transmission medium. Other embodiments are disclosed.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: October 1, 2019
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Irwin Gerszberg, Robert Bennett, Farhad Barzegar, Donald J. Barnickel, Thomas M. Willis, III
  • Patent number: 10432280
    Abstract: Systems and methods are provided for improving uplink coverage in a wireless communication network. A first correlated array and a second correlate array each comprise a plurality of antenna elements. Each correlated array has an inter-element spacing of one wavelength of a signal for which the array is configured to receive. The first and second correlated arrays are interleaved such that one-half of a wavelength of a signal for which at least one of the correlated arrays is configured to receive separates adjacent elements of the first and second correlated arrays. Signals received by each correlated array are combined using statistical signal processing techniques to create combined signals that may be provided to the wireless communication network. Combining uplink signals from at least two interleaved uncorrelated arrays may increase the effective spacing of each array without sacrificing base station space or throughput.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: October 1, 2019
    Assignee: Sprint Communications Company L.P.
    Inventors: Nagi A. Mansour, Kevin Almon Hart, Akin Ozozlu, Krunal Mansukhlal Modasiya, Noman M. Alam
  • Patent number: 10411913
    Abstract: A communication system that minimizes the transmission of pilot symbols while ensuring real-time channel tracking and symbol detection. The system employs a multiple-input multiple-output (MTMO) transmitter-receiver pair where there are many more receive antennas than transmit antennas. Communication occurs over a wide band RF channel via orthogonal frequency division multiplexing (OFDM) that employs a large number of sub-carriers.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: September 10, 2019
    Assignee: Syracuse University
    Inventors: Biao Chen, Michael Gans, John Matyjas
  • Patent number: 10404446
    Abstract: In one aspect, a method includes: determining a power mode of a device; setting a first reference voltage level and a second reference voltage level based at least in part on the power mode; and using at least one of the first reference voltage level and the second reference voltage level for comparison against incoming data.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: September 3, 2019
    Assignee: Silicon Laboratories Inc.
    Inventors: Hua Beng Chan, Rex Wong Tak Ying, Ricky Setiawan, Obaida Mohammed Khaled Abu Hilal
  • Patent number: 10396848
    Abstract: A method can include receiving frequency hop configuration data for a first wireless communication protocol via a second wireless communication protocol in second communication circuits; and configuring first communication circuits to communicate according to the first communication protocol with frequency hopping indicated by the frequency hop configuration data; wherein the first communication circuits and second communication circuits are formed in a same combination device. Related devices and systems are also disclosed.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: August 27, 2019
    Assignee: Cypress Semiconductor Corporation
    Inventor: Raghunatha Kondareddy
  • Patent number: 10396723
    Abstract: A system and method for pre-distorting a digital signal in a digital communications system. The method includes converting digital bits to be transmitted to a series of symbols defining the bits and providing the symbols to a pulse shaping filter (PSF) that provides samples of the symbols at a predetermined sample rate. The method also includes providing the filtered samples to a pre-distorter that pre-distorts the samples, wherein pre-distorting the samples includes providing a non-linear transformation of the samples that is defined by pre-distorter taps, and providing the pre-distorted samples to a power amplifier to be transmitted, where pre-distorting the samples includes modeling the power amplifier and associated transmitter components using a degree three memory polynomial.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: August 27, 2019
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Daniel Haas, Peter Ly
  • Patent number: 10374644
    Abstract: A system for distributing broadband signals via twisted pair wiring is disclosed. Various aspects of the system involve use of a broadband signal distribution interface device and/or a broadband line driver. In one aspect, a broadband signal distribution interface device includes a broadband signal interface configured to receive broadband radio frequency signals, and a plurality of broadband signal connections configured to distribute broadband radio frequency signals. The interface device also includes circuitry defining an upstream signal path and a downstream signal path and including a gain control circuit and a slope control circuit each positioned along the downstream signal path. The circuitry is configured to accommodate downstream transmission of the broadband signals onto twisted pair wiring.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: August 6, 2019
    Assignee: CommScope Technologies LLC
    Inventor: Joseph P. Preschutti
  • Patent number: 10374843
    Abstract: Embodiments herein disclose a method and system for designing a waveform for data communication. The method includes applying, by a phase rotation applying unit, a constellation specific phase rotation between consecutive data symbols in a data stream to obtain a constellation rotated data stream. Further, the method includes introducing, by a frequency domain pulse shaping filter, an inter symbol interference (ISI) between modulated data symbols of the constellation rotated data stream, such that the ISI develops the waveform of the constellated rotated data stream to be transmitted.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: August 6, 2019
    Assignee: INDIAN INSTITUTE OF TECHNOLOGY HYDERABAD
    Inventor: Kiran Kumar Kuchi
  • Patent number: 10361730
    Abstract: An amplifier device for high frequency signals, in particular a linear high frequency amplifier device, which comprises at least one input, an incoming line, a pre-distortion unit, in particular an adaptive pre-distortion unit, an amplifier unit, in particular a non-linear power amplifier unit, a transmission line, a feedback unit, and an output. The output is connected to the amplifier unit via the transmission line. In addition, the at least one input is connected to the pre-distortion unit such that two incoming branch lines are provided which are interconnected by a switching unit. A first incoming branch line of the incoming branch lines comprises a down-converter being arranged between the at least one input and the pre-distortion unit.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: July 23, 2019
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Karl-Martin Muessener, Florian Ohnimus, Lothar Schenk
  • Patent number: 10361768
    Abstract: Aspects of the subject disclosure may include, for example, a method that includes extracting first channel signals from first guided electromagnetic waves bound to an outer surface of a transmission medium of a guided wave communication system; amplifying the first channel signals to generate amplified first channel signals in accordance with a phase correction; selecting one or more of the amplified first channel signals to wirelessly transmit to at least one client device via an antenna; and guiding the amplified first channel signals to the transmission medium of the guided wave communication system to propagate as second guided electromagnetic waves, wherein the phase correction aligns a phase of the second guided electromagnetic waves to add in-phase with a residual portion of the first guided electromagnetic waves that continues propagation along the transmission medium.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: July 23, 2019
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Robert Bennett, Irwin Gerszberg, Farhad Barzegar, Donald J. Barnickel, Thomas M. Willis, III
  • Patent number: 10361759
    Abstract: Apparatuses, methods, and systems zone precoding are disclosed. One method includes determining a transmission zone for each of the plurality of users, wherein the transmission zone includes an angle of direction of a directional beam to each user, and a deviation of the angle of direction. Determining a precoding of transmission signals to each of the plurality of users from the base station, including determining an initial precoding for each of the users based on the transmission zone associated with the user, and constructing the precoding for each user by adjusting the initial precoding for each user based on the transmission zone determined for each of the other users.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: July 23, 2019
    Assignee: Facebook, Inc.
    Inventors: Ahmed Alkhateeb, Sam Padinjaremannil Alex, Ali Yazdan, Qi Qu
  • Patent number: 10355820
    Abstract: The present disclosure relates to a 5G or pre-5G communication system to be provided to support a data transmission rate higher than that of a 4-G communication system, such as LTE, and subsequent communication systems.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: July 16, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woomyoung Park, Sangmin Kim, Chiwoo Lim
  • Patent number: 10348416
    Abstract: Embodiments disclosed herein provide systems and methods for acoustically transferring information between systems. In a particular embodiment, a method provides identifying information for acoustic transfer and determining an amount of time corresponding to the information. The method further provides acoustically transmitting a signal at a first time and, upon the amount of time elapsing since the first time, acoustically transmitting the signal at a second time.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: July 9, 2019
    Assignee: Avaya Inc.
    Inventors: Azaria Cohen, Ori Modai
  • Patent number: 10341150
    Abstract: The method of phase modulating a carrier wave involves creating a set of signals sh(t) constituted by a carrier wave of frequency fC and of phase ?(t)=h?0(t) that is modulated in time t in such a manner that sh(t)=cos(2?fCt+h?0(t)), where h is an integer and where ?0(t)=2 arctan((t?t0)/w0). The modulation corresponds to a single phase pulse centered on a time t0 of characteristic duration w0 that is positive, and incrementing the phase of the signal sh(t) by the quantity h2?, in such a manner as to generate a single sideband frequency spectrum directly. The carrier wave may be of electromagnetic type or of acoustic type. The method applies in particular to transporting binary information by single sideband phase coding, to generating single sideband orthogonal signals, to detecting single sideband phase coded multiple-level digital signals, to transmitting single sideband phase coded binary signals in-phase and out-of-phase, and to single sideband combined amplitude-and-phase modulation.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: July 2, 2019
    Assignee: Commissariat A L'Energie Atomique Et Aux Energies Alternatives
    Inventors: Denis Christian Glattli, Séverin Preden Roulleau
  • Patent number: 10341159
    Abstract: A method of recovering a synchronization detection error according to an embodiment includes: determining whether a base station signal input to a head-end device is detected; determining whether a head-end signal output from the head-end device, which is obtained by processing the base station signal by the head-end device, is detected by a lower device of the head-end device; determining whether synchronization of the head-end signal is detected based on the head-end signal input to the lower device; and changing a set frequency band or performing automatic gain control of the head-end device based on whether the base station signal is detected, whether the head-end signal is detected, and whether the synchronization of the head-end signal is detected
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: July 2, 2019
    Assignee: SOLiD, INC.
    Inventor: Jitaek Park
  • Patent number: 10333747
    Abstract: Disclosed is a method of compensating for coupling impairments in optical communication systems comprising two or more coupled transmission lines. The method comprises introducing into the system a component comprising an electronic circuit configured to realize at least one of an exact electrical coupling compensation (EECC) algorithm and a spectrally fragmented electrical coupling compensation (SF-ECC) algorithm.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: June 25, 2019
    Assignee: B.G. Negev Technologies and Applications Ltd., at Ben-Gurion University
    Inventors: Yanir London, Dan Sadot
  • Patent number: 10326403
    Abstract: A radio receiver circuit configurable to operate in a carrier-aggregation (CA) mode and in a non-CA mode is disclosed. It comprises a first receive path arranged to be operatively connected to an antenna and a second receive path arranged to be operatively connected to the same antenna. It further comprises a control unit operatively connected to the first receive path and the second receive path. In the CA mode, the control unit controls the first receive path to receive a first component carrier (CC) and the second receive path to receive a second CC. In the non-CA mode, the control unit selectively controls the first receive path and the second receive path to both receive the same single CC.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: June 18, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Magnus Nilsson, Peter Jakobsson
  • Patent number: 10326515
    Abstract: When a radio frequency (RF) unit is provided with a delay line or a switch, as the number of arrays (the number of antennas) increases, the parasitic capacitance of the antennas increases and the insertion loss of the switch increases. In addition, the insertion loss may further increase at high frequencies expected to be used in the future. An array antenna apparatus of the present invention is provided with: a plurality of antennas that receive signals; a plurality of down-converters that are connected respectively to the plurality of antennas and that down-convert the received signals; and a switch that selects at least one signal from among the plurality of down-converted signals, and transmits the at least one signal to an A/D converter.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: June 18, 2019
    Assignee: NEC CORPORATION
    Inventors: Naoki Oshima, Ikuma Ando
  • Patent number: 10312964
    Abstract: Aspects of the subject disclosure may include, for example, a system that performs operations including receiving electromagnetic waves on an outer surface of a transmission medium having a non-hybrid wave mode and a cutoff frequency, detecting a degradation of a signal quality of the electromagnetic waves, generating adjusted electromagnetic waves having a hybrid wave mode and a non-optical frequency range responsive to the detecting, and directing the adjusted electromagnetic waves having the hybrid wave mode and the non-optical frequency range to the outer surface of the transmission medium for guiding propagation of the adjusted electromagnetic waves without utilizing an electrical return path. Other embodiments are disclosed.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: June 4, 2019
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Robert Bennett, Farhad Barzegar, Irwin Gerszberg, Donald J. Barnickel, Thomas M. Willis, III
  • Patent number: 10305557
    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). Exemplary embodiment of the present invention provide a scheme for reducing feedback overhead when quantizing and feeding back channel state information in a MIMO system. A method for operating a receiver in a MIMO system, according to one embodiment of the present invention, includes the steps of: performing trellis coded quantization for channel information by using a codebook selected from a plurality of codebooks; and transmitting, to a transmitter, feedback information including the quantization result.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: May 28, 2019
    Assignees: Samsung Electronics Co., Ltd., Purdue Research Foundation
    Inventors: Junil Choi, David J. Love, Tae-Young Kim, Ji-Yun Seol