End-to-end Transmission System Patents (Class 375/141)
  • Patent number: 11966354
    Abstract: Methods and apparatus for processing signals captured by one or more sensors are disclosed. An example method includes receiving a first signal from a control circuit, the first signal including control data associated with the one or more sensors, recovering a fixed frequency clock signal and a control signal from the first signal, generating a spread spectrum clock signal based on the fixed frequency clock signal, receiving a sensor data signal based at least in part on data captured by the one or more sensors, the spread spectrum clock signal, and the control signal, retiming the sensor data signal based at least in part on the spread spectrum clock signal and the fixed frequency clock signal, and generating an output signal based on the retimed sensor data signal.
    Type: Grant
    Filed: November 4, 2022
    Date of Patent: April 23, 2024
    Assignee: Aeonsemi, Inc.
    Inventors: Ky-Anh Tran, Yunteng Huang, Tao Mai
  • Patent number: 11941971
    Abstract: Methods and systems for contingency communication are disclosed. In one embodiment, a method for providing emergency services may be performed by a base station operating in a communication system in an embodiment, the method for providing emergency services includes transmitting a beacon signal to indicate an emergency status to enable portable devices to operate in a stress mode. A distress signal may be transmitted by a mobile device in response to the beacon signal to the base station, wherein the distress signal carries information at least comprising user identity associated with the mobile device, geolocation of the mobile device, or biometrics of a user of the mobile device.
    Type: Grant
    Filed: August 17, 2022
    Date of Patent: March 26, 2024
    Assignee: Neo Wireless LLC
    Inventors: Titus Lo, Xiaodong Li
  • Patent number: 11811442
    Abstract: An apparatus includes a radio-frequency (RF) receiver for receiving RF signals. The RF receiver includes a plurality of modulation signal detectors (MSDs) to generate a plurality of detection signals when a plurality of RF signals modulated using a plurality of modulation schemes are detected. The RF receiver further includes a controller to cause reception of the plurality of RF signals in response to the plurality of detection signals.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: November 7, 2023
    Assignee: Silicon Laboratories Inc.
    Inventor: Hendricus de Ruijter
  • Patent number: 11737129
    Abstract: Methods, devices and systems for communication techniques that use the quasi-static properties of wireless channels are described. One example method to improve communication performance includes receiving a set of pilots over a transmission channel between the wireless communication apparatus and a far-end communication apparatus, the transmission channel comprising a first portion that is time-invariant and a second portion that is time-variant, processing the received set of pilots to generate an estimate of the first portion, processing the received set of pilots to generate an estimate of the second portion, and performing a communication based on a channel state information that is a weighted combination of a first term based on the estimate of the first portion and a second term based on the estimate of the second portion.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: August 22, 2023
    Assignee: Cohere Technologies, Inc.
    Inventors: Andreas Molisch, Ronny Hadani, Robert Fanfelle
  • Patent number: 11706806
    Abstract: Embodiments of the present disclosure relate to methods, terminal devices, network nodes and apparatus for random access process in a wireless network. The method at the terminal device may comprise: receiving additional information related to a terminal device together with a random access preamble. With embodiments of the present disclosure, the additional information related to a terminal device can be transmitted to the network node together with a random access preamble; in such a case, further useful information is available for the eNB, which might substantially facilitate the random access process for either initial access or non-initial access.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: July 18, 2023
    Assignee: NEC CORPORATION
    Inventors: Yueyu Wang, Gang Wang
  • Patent number: 11646722
    Abstract: In one embodiment, an apparatus includes a clock generator circuit to receive a first clock signal at a first frequency and output a second clock signal at a second frequency less than the first clock frequency. The clock generator circuit may include: a divider circuit to divide the first clock signal to obtain at least a first divided clock signal and a second divided clock signal; and a gating circuit coupled to the divider circuit, the gating circuit to gate the first clock signal with at least one of the first divided clock signal and the second divided clock signal to output the second clock signal.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: May 9, 2023
    Assignee: Silicon Laboratories Inc.
    Inventor: Abdulkerim L. Coban
  • Patent number: 11609990
    Abstract: This patent concerns novel technology for detecting backdoors of neural network, particularly deep neural network (DNN), classifiers. The backdoors are planted by suitably poisoning the training dataset, i.e., a data-poisoning attack. Once added to input samples from a source class (or source classes), the backdoor pattern causes the decision of the neural network to change to a target class. The backdoors under consideration are small in norm so as to be imperceptible to a human, but this does not limit their location, support or manner of incorporation. There may not be components (edges, nodes) of the DNN which are dedicated to achieving the backdoor function. Moreover, the training dataset used to learn the classifier may not be available.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: March 21, 2023
    Assignee: Anomalee Inc.
    Inventors: David Jonathan Miller, George Kesidis
  • Patent number: 11588560
    Abstract: An antenna adaptation is provided for a communication node as controlled by a antenna adaptation command. The antenna adaptation command adjusts the number of active transmit antennas and/or the number of active receive antennas in the communication node such as for reducing interference at the communication node.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: February 21, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Wanshi Chen, Peter Gaal
  • Patent number: 11558089
    Abstract: Methods, media, and systems are provided for a priority-based multi-user (MU) multiple-input multiple-output (MIMO) pairing threshold for codebook beamforming. The methods, media, and systems identify a plurality of user device candidates for a user device pairing. A first user device of the plurality of user device candidates having a higher priority than another user device of the plurality of user device candidates is identified. A correlation of the first user device with a second user device of the plurality of user device candidates is determined to be below a threshold. Based on determining that the correlation is below the threshold, the first user device is paired with the second user device for sharing a resource.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: January 17, 2023
    Assignee: T-MOBILE INNOVATIONS LLC
    Inventor: Sanghoon Sung
  • Patent number: 11539558
    Abstract: A transmitter for a chaos communications system employing chaotic symbol modulation that perform auto-indexing, temporal gain control, increased path diversity and sequence lock up prevention. The transmitter includes a symbol mapper that converts a series of information bits to a series of bit symbols, and a chaos modulator providing chaotic spreading modulation of the bit symbols. The chaos modulator includes a plurality of chaos generators, one for each bit symbol, providing a chaos sequence for the bit symbols. Each chaos modulator includes a RAM/ROM that provides auto-indexing where a chaos sequence output from the RAM/ROM is fed back to an input of the RAM/ROM from which a chaos sequence at a next address in the RAM/ROM is selected as the output of the modulator.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: December 27, 2022
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Ameesh N. Pandya, Armin Azizian, Christopher W. Walker, Marlon Marquez
  • Patent number: 11489563
    Abstract: Methods, apparatus and systems are disclosed. One representative method implemented by a wireless transmit/receive unit includes determining a first beamforming matrix; sending, to a network entity, an indication of the first beamforming matrix; and receiving, from the network entity, an indication of a second beamforming matrix determined by the network entity from at least the first beamforming matrix for beamforming data for transmission.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: November 1, 2022
    Assignee: IDAC Holdings, Inc.
    Inventors: Shahrokh Nayeb Nazar, Afshin Haghighat, Liangping Ma, Erdem Bala, Oghenekome Oteri, Moon-il Lee, Sanjeewa Herath
  • Patent number: 11463183
    Abstract: A signal analysis apparatus includes a first frequency conversion unit 10 that generates an intermediate frequency signal SIF2 and a second spurious signal SSP2 from a measured signal SRF of a frequency fRF (center frequency fc), and a second frequency conversion unit 25 that converts the intermediate frequency signal SIF2 and the second spurious signal SSP2 into an intermediate frequency signal SIF2? of a frequency fIF2? and a second spurious signal SSP2? of a frequency fSP2? by performing frequency shift of the intermediate frequency signal SIF2 and the second spurious signal SSP2 by a frequency shift amount ?f, in which the frequency shift amount ?f is a value that does not establish a relationship of ?W/2?fSP2??fIF2??+W/2.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: October 4, 2022
    Assignee: ANRITSU CORPORATION
    Inventors: Mayfor Dangkiw, Takasumi Ikebe, Hirofumi Kanno
  • Patent number: 11463285
    Abstract: A signal analysis apparatus includes a frequency conversion unit 10 that includes a first local oscillator 11 which outputs a first local oscillation signal SLO1 of a frequency fLO1, a first mixer 12 which generates a first spurious signal of a frequency fSP1, a first BPF 13 of a passed center frequency f0, a second local oscillator 14 which outputs a second local oscillation signal SLO2 of a frequency fLO2, and a second BPF 16 of a passed bandwidth W, and that performs frequency conversion of a measured signal SRF of a frequency fRF (center frequency fc), in which the frequency fLO1 and the frequency fLO2 are shifted using a frequency shift amount ?f that does not establish a relationship of ?W/2?|fSP1?f0±fIF2??f|?fIF2?+W/2.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: October 4, 2022
    Assignee: ANRITSU CORPORATION
    Inventors: Shinichi Ito, Shunsuke Hinooka, Yoshitaka Kihara, Mamoru Iwamoto
  • Patent number: 11457330
    Abstract: Presented herein are techniques for assigning Ultra-Wideband (UWB) anchors for client ranging. A control device can monitor UWB ranging between a mobile device and a primary anchor. In response to determining that a signal strength between the mobile device and the primary anchor is below a threshold, the control device can identify anchors for which the mobile device has had a signal strength above the threshold during a period of time, and select one of the anchors as a new primary anchor for the mobile device. For example, the control device can select the new primary anchor based on a relative collision tolerance mapping for the new primary anchor and at least one other anchor within a UWB range of the new primary anchor. The control device can send a command causing UWB ranging to be performed between the mobile device and the new primary anchor.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: September 27, 2022
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Jerome Henry, Robert Edgar Barton, Matthew Aaron Silverman
  • Patent number: 11438891
    Abstract: Provided is a radio communication base station device which can prevent lowering of use efficiency of a channel communication resource for performing a frequency diversity transmission when simultaneously performing a frequency scheduling transmission and the frequency diversity transmission in a multicarrier communication. In the device, a modulation unit (12) executes a modulation process on Dch data after encoded so as to generate a Dch data symbol. A modulation unit (22) executes a modulation process on the encoded Lch data so as to generate an Lch data symbol. An allocation unit (103) allocates the Dch data symbol and the Lch data symbol to respective subcarriers constituting an OFDM symbol and outputs them to a multiplexing unit (104). Here, when a plurality of Dch are used for a Dch data symbol of one mobile station, the allocation unit (103) uses Dch of continuous channel numbers.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: September 6, 2022
    Assignee: Panasonic Holdings Corporation
    Inventors: Akihiko Nishio, Christian Wengerter, Hidetoshi Suzuki, Masaru Fukuoka
  • Patent number: 11395285
    Abstract: To solve a problem that although the increase of the number of frequency blocks by allocating discontinuous subcarriers (RBs) as in OFDM enables an increase in multi-diversity effect and an improvement in throughput, the number of RB allocation patterns increases with the increase of the number of frequency blocks, resulting in an increase in the amount of information relating to the allocated RBs, the resource block allocation unit is determined when resource blocks discontinuous on the frequency axis are allocated to a terminal, and the number of bits of scheduling information indicating the allocated resource blocks by using Tree Based is set to the number of bits corresponding to the determined allocation unit.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: July 19, 2022
    Assignee: NEC CORPORATION
    Inventors: Kenji Koyanagi, Takamichi Inoue, Le Liu, Yoshikazu Kakura
  • Patent number: 11356203
    Abstract: An embodiment of the present invention discloses a data sending and receiving method. A first FEC unit of a sending device sends, by using a first channel, a first data stream on which first FEC encoding has been performed; a second FEC unit of the sending device sends, by using a second channel, a second data stream on which second FEC encoding has been performed; and the sending device performs interleaving on the first data stream and the second data stream, to obtain an output data stream, and sends the output data stream to a receiving device and error correction capability of a receiving device could be improved. In addition, in the present invention, an operation of writing by row and reading by column does not need to be performed. Therefore, no delay is generated.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: June 7, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Wenbin Yang, Tongtong Wang, Xinyuan Wang
  • Patent number: 11337185
    Abstract: Methods, devices, and systems for the transmission of information in a wireless communication system are disclosed. In one embodiment, a method for the transmission of information in a wireless communication system comprises receiving a downlink message, wherein the downlink message includes a first control channel element; determining a first index using the location of the first control channel element; determining a second index; determining a first orthogonal resource using the first index; determining a second orthogonal resource using the second index; spreading an uplink message using the first orthogonal resource to form a first spread signal; spreading the uplink message using a second orthogonal resource to form a second spread signal; transmitting the first spread signal using a first antenna; and transmitting the second spread signal using a second antenna.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: May 17, 2022
    Assignee: BlackBerry Limited
    Inventors: Hua Xu, Youn Hyoung Heo, Zhijun Cai, Andrew Mark Earnshaw, Mo-Han Fong, Sean Michael McBeath, Robert Mark Harrison
  • Patent number: 11330567
    Abstract: The technology described in this case facilitates random access by a user terminal with a radio base station. A user terminal determines one of a first type of uplink scrambling sequences and generates a random access message using the determined one of the first type of uplink scrambling sequences. The random access message is transmitted to the base station. The user terminal receives from the base station a second, different type of uplink scrambling sequence and uses it for subsequent communication with the radio base station. For example, the first uplink scrambling sequences may he specifically associated with the radio base station's cell area or a random access radio channel associated with the radio base station, but they arc not specifically assigned to any user terminal, and the second uplink scrambling sequence may be selected from a second set of uplink scrambling sequences specifically assignable to individual user terminals.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: May 10, 2022
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Stefan Parkvall, Erik Dahlman, Tobias Tynderfeldt
  • Patent number: 11265891
    Abstract: There may be provided a method for priory based transmission of skywave symbols, the method may include starting to transmit a first skywave symbol; determining to stop a transmission of the first skywave symbol and to transmit a second skywave symbol that has a higher priority than the first skywave symbol; stopping the transmission of first skywave symbol before a completion of the transmission of the first skywave symbol thereby transmitting a partial first skywave symbol; and transmitting the second skywave symbol.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: March 1, 2022
    Assignee: Raft Technologies Ltd.
    Inventors: Nir Halay, Tamir Ostfeld, Elad Segalis
  • Patent number: 11201769
    Abstract: An all-digital spread-spectrum type communications system employing chaotic symbol modulation. The system includes a transmitter having a symbol mapper that converts a series of information bits to a series of bit symbols, a digital chaos modulator employing an M-ary chaotic shift keying (M-CSK) architecture for chaotically spreading the bit symbols in the digital domain, where the chaos modulator includes a separate chaos generator for each of the M-CSK symbols, and a digital-to-analog converter (DAC) for converting the chaotic modulated bit symbols to an analog signal for transmission. The system also includes a receiver responsive to the analog signal from the transmitter and generating a received signal therefrom. The receiver performs signal acquisition and tracking on the received signal using a look-up table, a transmitter ID and a receiver ID in the received signal, de-spreading and de-modulation on the received signal and bit removal from the symbols in the received signal.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: December 14, 2021
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventor: Ameesh N. Pandya
  • Patent number: 11184203
    Abstract: Described are systems and methods for identifying the phase and polarization of independent modulation streams in quadrature channels of a coherent transmission system by using digital code. As a result, phase rotation and polarization of streams that during transmission may have become rotated and swapped around in the channel are correctly labeled and depermuted according to a known and predictable order.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: November 23, 2021
    Assignee: Maxim Integrated Products, Inc.
    Inventor: Charles Razzell
  • Patent number: 11159202
    Abstract: Ultra-Wideband (UWB) technology exploits modulated coded impulses over a wide frequency spectrum with very low power over a short distance for digital data transmission. Today's leading edge modulated sinusoidal wave wireless communication standards and systems achieve power efficiencies of 50 nJ/bit employing narrowband signaling schemes and traditional RF transceiver architectures. However, such designs severely limit the achievable energy efficiency, especially at lower data rates such as below 1 Mbps. Further, it is important that peak power consumption is supportable by common battery or energy harvesting technologies and long term power consumption neither leads to limited battery lifetimes or an inability for alternate energy sources to sustain them. Accordingly, it would be beneficial for next generation applications to exploit inventive transceiver structures and communication schemes in order to achieve the sub nJ per bit energy efficiencies required by next generation applications.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: October 26, 2021
    Assignee: Transfert Plus Societe en Commandite
    Inventors: Frederic Nabki, Dominic Deslandes, Mohammad Taherzadeh-Sani, Michiel Soer
  • Patent number: 11125887
    Abstract: A system capable of achieving time synchronization among a plurality of apparatuses provided at positions where they are unable to receive a GNSS signal is provided. A time synchronization system includes a reference time obtaining unit configured to obtain, based on a radio signal from a global navigation satellite system, a first timing signal and time information corresponding to timing indicated by the first timing signal, a modulator, connected to a line branched into a plurality of branches, configured to generate a modulated signal containing corresponding time information in synchronization with the first timing signal and to send the modulated signal over the line, at least one demodulator, connected to any branch of the line, configured to demodulate the modulated signal propagating over the line, and at least one transmitter configured to transmit a first radio signal compatible with the radio signal from the global navigation satellite system.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: September 21, 2021
    Assignee: ENABLER LTD.
    Inventor: Takahiro Shinohara
  • Patent number: 11115068
    Abstract: A system for data-based pre-distortion for a nonlinear power amplifier includes a digital pre-distortion (DPD) component, including a DPD processor and a DPD calibration engine, where the DPD processor applies a set of DPD coefficients to a digital baseband data signal, to generate a pre-distorted digital baseband data signal for conversion to a radio frequency (RF) signal and amplification by a nonlinear power amplifier (PA) to generate an RF output signal, where the DPD calibration engine compares a digitized, down-converted version of the RF output signal with the digital baseband data signal, to determine distortion coefficients of the nonlinear PA, and to update the set of pre-distortion coefficients in the DPD processor to compensate for the distortion coefficients of the non-linear PA, where data transmission is uninterrupted by the transmission of non-data calibration signals.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: September 7, 2021
    Assignee: Cypress Semiconductor Corporation
    Inventors: Sudhir Kumar Kasargod, Ayush Sood, Kempraju G
  • Patent number: 11101956
    Abstract: The present disclosure relates to a method and a device for a terminal transmitting a reference signal in a wireless communication system. According to the present disclosure, a method and a device may be provided, the method comprising: receiving, from a base station, configuration information associated with a configuration of a first demodulation reference signal for demodulating uplink data; and on the basis of the configuration information, transmitting the first demodulation reference signal and the uplink data to the base station via at least one antenna port, wherein the first demodulation reference signal and the uplink data are transmitted in a sub frame by means of frequency hopping, and the first demodulation reference signal is positioned on the same time axial symbol as that of at least one other demodulation reference signal transmitted on another antenna port.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: August 24, 2021
    Assignee: LG Electronics Inc.
    Inventors: Kyuseok Kim, Hyungtae Kim, Jiwon Kang, Seonwook Kim, Kilborn Lee, Hyunsoo Ko, Kijun Kim, Minki Ahn
  • Patent number: 11095391
    Abstract: A first communication device determines a first spatial direction for beamforming toward a second communication device, and determines a second spatial direction that is orthogonal to the first spatial direction. The first communication device wirelessly transmits the data to the second communication device while performing beamforming in the first spatial direction, and simultaneously wirelessly transmits noise while performing beamforming in the second spatial direction.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: August 17, 2021
    Assignee: NXP USA, Inc.
    Inventors: Ankit Sethi, Sayak Roy
  • Patent number: 11075668
    Abstract: According to various implementations, a device, such as a wireless communication device, carries out the following actions: for each element of a spreading sequence to be applied, determining, based on the element, whether to carry out randomization on a coded data stream, in which each element of the spreading sequence belongs to the set {1, ?1, j, ?j}; for each element of the spreading sequence for which randomization is determined to be applied, applying, based on the value of the element, one or more randomization techniques to the coded data stream; modulating the coded data stream; and transmitting the modulated data stream.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: July 27, 2021
    Assignee: ZTE Corporation
    Inventors: Li Tian, Zhifeng Yuan, Ziyang Li, Yuzhou Hu, Jianqiang Dai, Chen Huang
  • Patent number: 11075669
    Abstract: The present disclosure discloses an M-ary DCSK method based on chaotic shape-forming filtering. The method includes the following steps: at S1, parameters of a communication system are set; at S2, HP information and LP information to be sent in each time slot are prepared; at S3, the information to be sent is modulated; at S4, a chaotic carrier is generated through a chaotic shape-forming filter; at S5, a transmitted signal is prepared; at S6, down-carrier frequency and matched filter is performed to a received signal; at S7, the sampling of a maximum SNR point is performed to an output signal of a matched filter; at S8, the decision of high priority information bits is resumed; and at S9, the decision of low priority information bits is resumed.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: July 27, 2021
    Assignee: Xi'an University of Technology
    Inventors: Haipeng Ren, Chao Bai, Jie Li
  • Patent number: 11076361
    Abstract: Techniques for performing path loss (PL) compensation in coordinated multipoint (CoMP) systems are provided. A method for wireless communications by a user equipment (UE) is provided. The method generally includes selecting, from a plurality of transmission points involved in uplink (UL) coordinated multipoint (CoMP) operations with the UE, a transmission point to associate with for path loss (PL) compensation, and adjusting power of one or more transmissions based on path loss measured based on the selected transmission point.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: July 27, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Hao Xu, Peter Gaal, Wanshi Chen, Stefan Geirhofer, Madhavan Srinivasan Vajapeyam
  • Patent number: 11070523
    Abstract: A digital data transmission system includes an identity-masking mechanism, a transmitter device provided with the identity-masking mechanism, and a receiver device having an identification data. The identity-masking mechanism is provided to convert a source or destination data into a source or destination identity-masking mark which is combined with a predetermined data, thereby forming a source-marked or destination-marked data with the source identity-masking mark. The source-marked or destination-marked data is transmitted from the transmitter device to the receiver device for verifying with the identification data. The receiver device cannot access the source-marked or destination-marked data if the verification is failed. The receiver device can access the source-marked or destination-marked data if the verification is passed.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: July 20, 2021
    Assignee: NATIONAL UNIVERSITY OF KAOHSIUNG
    Inventor: Chun-Hsin Wu
  • Patent number: 11047963
    Abstract: A signal processing system includes a time domain processing component to receive samples of a range-dependent time domain baseband signal in a frequency modulated continuous wave (FMCW) light detection and ranging (LIDAR) system, to separate the samples of the baseband signal into frequency subbands in the time domain based on subband typing criteria, and to select subband processing parameters for the frequency subbands in the time domain and the frequency domain based on the subband typing criteria. Subband processors selectively process the frequency subbands in the time domain and the frequency domain based on the processing parameters.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: June 29, 2021
    Assignee: AEVA, INC.
    Inventors: Kumar Bhargav Viswanatha, Jose Krause Perin, Rajendra Tushar Moorti, Mina Rezk
  • Patent number: 10979118
    Abstract: A distributed beamforming system includes a platform terminal and a plurality of user terminals. The platform terminal includes an antenna array including a plurality of antenna elements. Each antenna element transmits a wide-area beam configured to encompass each of the plurality of user terminals. The platform terminal also includes one or more processors in electronic communication with the antenna array and a memory coupled to the one or more processors. The memory stores data into a database and program code that, when executed by the one or more processors, causes the platform terminal to receive an incoming signal and split the incoming signal into a plurality of individual wireless signals. Each individual wireless signal corresponds to one of the plurality of antenna elements of the antenna array. The system also transmits the plurality of individual wireless signals to the user terminal by the antenna array.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: April 13, 2021
    Assignee: The Boeing Company
    Inventors: Christopher Jason Foster, Daniel Roukos, Kyle William Jewett, Christ Tzelepis
  • Patent number: 10969852
    Abstract: A method and a gateway system for enabling adaptive power management. The gateway system is powered by a rechargeable battery that is coupled with a solar power source. A location reading indicating a location of the gateway system is transmitted at a first time. A solar profile is received from a management server. The solar profile indicates a measure of power expected to be generated at the location during an interval of time that occurs after the first time by the solar power source. The gateway system determines based on a current battery level of the rechargeable battery and the solar profile an optimal power usage plan for the gateway system and operates according to the optimal power usage plan during the interval of time.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: April 6, 2021
    Assignee: Samsara Networks Inc.
    Inventors: Brian Tuan, Kavya U. Joshi, James Michael Rowson, Justin J. Delegard, James Austin Duffield, Kong Kee Poon, Christian Peter Almer, John Bicket
  • Patent number: 10949021
    Abstract: An electric field (e-field) touchscreen is described. A continuous stream of digital signal data that represents e-field signal deviations is received from multiple receive electrodes. The stream of digital signal data is processed using a machine learning model to determine a touch event and a location on a display screen of the touchscreen. The touch event is processed. The e-field touchscreen may determine whether a non-normal event may be occurring causing noise in the digital signal data. If so, the received stream of digital signal data is processed through a low-pass filter and processed through an absolute value average baseline filter. A difference between the filtered data is determined to generate a filtered stream of digital signal data and is processed using the machine learning model determine a touch event and a location on a display screen of the touch event. The touch event is processed.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: March 16, 2021
    Assignee: CHARGEPOINT, INC.
    Inventors: Matthew Thomas Hungerford, Robert M. Khamashta
  • Patent number: 10944618
    Abstract: An apparatus includes a phase offset unit configured to set a phase offset between the first transmission channel and the second transmission channel such that a phase deviation between the first transmission channel and the second transmission channel deviates from zero, a power detection unit configured to detect signal powers of the first transmission channel and the second transmission channel under the phase offset, a processing unit configured to determine, based on the detected signal powers, a deviation correction value between the first transmission channel and the second transmission channel, where the deviation correction value includes a phase correction value, and a phase correction unit configured to set the phase correction value between the first transmission channel and the second transmission channel.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: March 9, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Mu Zhou, Ricky Lap Kei Cheung, Yi Cao
  • Patent number: 10924229
    Abstract: Systems and methods related to increased spectrum efficiency for 5G communications, comprising combining time, frequency, spatial, and signal domains for multi-dimension modulation. In one embodiment, the ability of reconfigurable antenna to change their radiation pattern and/or polarization modes may be used to modulate additional information onto the conventional SM-MIMO transmitted signal. In further embodiments, various combinations of space shift keying, block coding, multi-carrier modulation, and the like may be used to introduce additional dimensions for data modulation and achieve diversity gain.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: February 16, 2021
    Assignee: IDAC Holdings, Inc.
    Inventors: Fengjun Xi, Steven Ferrante, Kyle Jung-Lin Pan, Alphan Sahin, Chunxuan Ye, Robert L. Olesen
  • Patent number: 10895921
    Abstract: The present invention provides a touch sensitive processing apparatus for receiving electrical signals carrying pressure information transmitted from a first stylus, comprising: a sensing circuit, configured for receiving the electrical signals via electrodes of a touch panel; and a processor, coupled to the sensing circuit, configured for: despreading a first preamble code of the received electrical signals in accordance with a pseudo-random number (PN) code in a first time period; despreading a second preamble code of the received electrical signals in accordance with the PN code in a second time period; and calculating the pressure information according to a first signal strength ratio of a first part of the received electrical signal and a second part of the received electrical signal, wherein the first part comprises the first preamble code and the second part comprises the second preamble code.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: January 19, 2021
    Assignee: EGALAX_EMPIA TECHNOLOGY INC.
    Inventors: Chin-Fu Chang, Shang-Tai Yeh
  • Patent number: 10884849
    Abstract: Provided are a computer program product, system, and method for mirroring information on modified data from a primary storage controller to a secondary storage controller for the secondary storage controller to use to calculate parity data. New primary parity data is calculated from modified data for a primary group of tracks in the primary storage and difference data from the modified data and a pre-modified version of the modified data. The difference data and one of the modified data and the new primary parity data are sent to the secondary storage controller to cause the secondary storage controller to write new secondary parity data and the modified data to a secondary group of tracks at the secondary storage. The modified data and the new primary parity data are written to the primary group of tracks in the primary storage.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: January 5, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Lokesh M. Gupta, Matthew G. Borlick, Kevin J. Ash, John C. Elliott
  • Patent number: 10873430
    Abstract: Example methods and apparatus for sending a signal are described. One method includes determining a to-be-sent first signal by a first terminal and determining a first time-frequency resource. Some or all of the first time-frequency resource are second time-frequency resources, and the second time-frequency resource is a time-frequency resource used to send a second signal. The first signal is sent by the first terminal by using the first time-frequency resource, where the first time-frequency resource includes an idle time-frequency resource that is not occupied by the second signal. The first time-frequency resource can also include a common time-frequency resource occupied by the second signal, and the first signal is orthogonal to the second signal in the common time-frequency resource.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: December 22, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhiheng Guo, Xinqian Xie, Wei Sun
  • Patent number: 10797830
    Abstract: An apparatus and method for multiplexing signals using layered division multiplexing are disclosed. A signal multiplexing apparatus according to an embodiment of the present invention includes a combiner configured to combine a core layer signal and an enhanced layer signal at different power levels to generate a multiplexed signal, a power normalizer configured to reduce power of the multiplexed signal to power corresponding to the core layer signal, and a time interleaver configured to perform interleaving applied to both the core layer signal and the enhanced layer signal.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: October 6, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Nam-Ho Hur, Sun-Hyoung Kwon, Sung-Ik Park, Heung-Mook Kim, Jae-Young Lee
  • Patent number: 10791556
    Abstract: Techniques are described for wireless communication. A first method includes winning a contention for access to an unlicensed radio frequency spectrum band, and transmitting at least a portion of a channel usage beacon signal (CUBS) over the unlicensed radio frequency spectrum band. The at least portion of the CUBS is transmitted in a number of frequency interlaces of the unlicensed radio frequency spectrum band. A second method includes winning a contention for access to an unlicensed radio frequency spectrum band; determining whether the contention is won within a threshold time before a next symbol period boundary; and transmitting at least a portion of a CUBS over the unlicensed radio frequency spectrum band. The at least portion of the CUBS is transmitted during a preamble including a fractional period of a first symbol period. The at least portion of the CUBS may be based at least in part on the determining.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: September 29, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Peter Gaal, Srinivas Yerramalli, Durga Prasad Malladi, Naga Bhushan, Yongbin Wei, Tao Luo, Hao Xu, Wanshi Chen, Shimman Arvind Patel, Aleksandar Damnjanovic, Xiaoxia Zhang
  • Patent number: 10785015
    Abstract: Methods, systems, and apparatus for EM communications. One of the apparatus includes a plurality of receive samplers arranged in parallel and configured to receive an amplitude modulated input signal, each sampler being clocked at a same rate but not a same phase, the rate being in relation with the input signal; a plurality of envelope extractors, wherein each envelop extractor is communicatively coupled to a respective output of one of the plurality of receive samplers, and wherein each envelope extractor is configured to extract the envelope of the input signal after sampling; and a combiner communicatively coupled to the envelope extractors to combine the signal envelopes sampled at their respective phases, creating a combined output that provides an approximate copy of the input signal envelope, providing an output signal for performing symbol synchronization.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: September 22, 2020
    Assignee: Keyssa Systems, Inc.
    Inventor: Patrick Antoine Rada
  • Patent number: 10749718
    Abstract: This invention relates system for classifying a modulation format of a communication signal. The system includes a receiving antenna system, to receive the communication signal, a preprocessing module, to evaluate a Fourier transform of a plurality of samples of the received communication signal, normalize each discrete sample of the Fourier transform, quantize each normalized sample based on a number of quantization levels (Q), a graphical analyzer to construct a undirected graph by tracing amplitude of the each quantized sample; and a classification module to extract one or more modulation classification (MC) features from the undirected graph; and to determine the modulation format of the received communication signal based on the extracted MC features.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: August 18, 2020
    Assignee: Allen-Vanguard Corporation
    Inventors: Yahia A. Eldemerdash, Octavia A. Dobre, Oktay Ureten, Trevor Noel Yensen
  • Patent number: 10749810
    Abstract: A network device such as a router or switch, in one embodiment, includes a timing analyzer which is capable of providing timing analysis over one or more network circuits. The timing analyzer, in one aspect, receives a data packet traveling across a circuit emulation service (“CES”) circuit such as T1 or E1 circuit. Upon obtaining an arrival timestamp associated with the data packet, the arrival timestamp is stored in a timestamp buffer in accordance with a first-in first-out (“FIFO”) storage sequence. After identifying the oldest arrival timestamp in the timestamp buffer, an offset is generated based on the result of comparison between the arrival timestamp and the oldest timestamp. The timing analyzer can also be configured to generate timing reports on-demand based on generated offset(s).
    Type: Grant
    Filed: December 22, 2018
    Date of Patent: August 18, 2020
    Assignee: Tellabs Operations, Inc.
    Inventors: Anthony Leonard Sasak, Christopher V. O'Brien
  • Patent number: 10715891
    Abstract: An auto-provision method, system and computer programs for FTTH backhaul, midhaul or fronthaul for mobile base stations based on SDN. The method comprises detecting, by OLT when an ONU is connected to an optical termination point and responsive to said detection said OLT notifying a SDN controller. The SDN controller then provides connectivity to a base station connected to the ONU to a first restricted network providing access to a web site with limited connectivity. Then, said web site receives credential information identifying a technician of the base station and, once the technician is connected therein, further receives configuration information specifying which FTTH services the base station requires subscription. The SDN controller then disconnects the base station from the web site and reconnects it to a second network configured to provide access to a core network and to the subscribed FTTH services to the base station.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: July 14, 2020
    Assignee: TELEFONICA DIGITAL ESPAÑA, S.L.U.
    Inventors: María Luisa García Osma, Alfonso Aurelio Carrillo Aspiazu, Daniel Velasco Benito
  • Patent number: 10707913
    Abstract: A radio frequency system. In some embodiments, the system includes a one-bit receiver, and the one-bit receiver includes a digital pseudo random noise generator, a one-bit digital to analog converter, a power combiner, a one-bit analog to digital converter, and a digital subtraction circuit. The digital pseudo random noise generator produces a signal added to the received signal before analog to digital conversion. After analog to digital conversion, a delayed version of the dither is subtracted from the digital signal.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: July 7, 2020
    Assignee: Raytheon Company
    Inventors: Harry B. Marr, Daniel Thompson, Ian S. Robinson
  • Patent number: 10693534
    Abstract: An electronic device including circuitry configured to control receiving a first reference signal or a second reference signal. The second reference signal is formed by weighting the first reference signal. The circuitry is configured to determine first transmission weight information and second transmission weight information based on reception of the first reference signal and the second reference signal. The circuitry is further configured to control transmitting of the first transmission weight information according to a first period and the second transmission weight information according to a second period, the first period being different from the second period. The second transmission weight information is determined and transmitted after the first transmission weight information is transmitted.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: June 23, 2020
    Assignee: SONY CORPORATION
    Inventor: Hiroaki Takano
  • Patent number: 10693696
    Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. In a wireless communication system according to an embodiment, a signal transmission method of a transmitting apparatus includes determining a phase for each predetermined frequency band unit, applying the determined phase to a signal generated for each predetermined frequency band unit, and transmitting the signal.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: June 23, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eunyong Kim, Kwangjin Ahn, Youngkwan Choi, Hoonkyung Cho
  • Patent number: 10693587
    Abstract: Methods and systems are described for obtaining a plurality of information bits, and responsively partitioning the obtained plurality of information bits into a plurality of subsets of information bits, generating a plurality of streams of forward error correction (FEC)-encoded bits using a plurality of FEC encoders receiving respective subsets of the plurality of subsets of information bits, providing the plurality of streams of FEC-encoded bits to a plurality of sub-channel encoders, each sub-channel encoder receiving a respective stream of FEC-encoded bits from a different FEC encoder of the plurality of FEC encoders for generating a set of codewords of a vector signaling code, and wherein sequential streams of FEC-encoded bits from a given FEC encoder are provided to different sub-channel encoders for each successively generated set of codewords, and transmitting the successively generated sets of codewords of the vector signaling code over a multi-wire bus.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: June 23, 2020
    Assignee: KANDOU LABS, S.A.
    Inventors: Amin Shokrollahi, Ali Hormati