Patents Examined by Dac V. Ha
  • Patent number: 11902061
    Abstract: A reception device for receiving a data signal representing a data value 0 or 1. The reception device includes an equalizer circuit and a control circuit. The equalizer circuit outputs an output value representing a result obtained by comparing a voltage based on the received data signal and a first voltage as a reference, at each clock timing corresponding to the data signal. The control circuit is connected to the equalizer circuit. The control circuit changes, before the data signal is received, a tap coefficient related to a characteristic of the equalizer circuit in a state in which a second voltage different from the first voltage, instead of the voltage of the data signal, is supplied to the equalizer circuit, to detect an inverted tap coefficient that is the tap coefficient at a boundary where a data value of the output value is inverted. The control circuit sets the inverted tap coefficient to the equalizer circuit at a time of receiving the data signal.
    Type: Grant
    Filed: June 15, 2022
    Date of Patent: February 13, 2024
    Assignee: Kioxia Corporation
    Inventor: Shinichi Ikeda
  • Patent number: 11888659
    Abstract: There is described an RFID IC, comprising: i) an RFID interface configured to receive a digitally modulated signal, wherein the digitally modulated signal comprises: a first slot with a first pulse, and a second slot with a second pulse; and ii) a processing unit configured to a) determine a first position of the first pulse in the first slot, b) filter a region that follows the determined first position of the first pulse, c) determine a second position of the second pulse in the second slot, and, if the second position of the second pulse cannot be determined in the second slot, assume that the second position of the second pulse in the second slot is at the filtered region.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: January 30, 2024
    Assignee: NXP B.V.
    Inventors: Christian Weidinger, Heinz Umfahrer
  • Patent number: 11888539
    Abstract: The present technology provides solutions that enable accurate measuring of frequency response on a network (e.g., cable network, fiber optic network) through frequency sweep testing. In various embodiments, the present technology provides a remote transmitter test unit that can be physically deployed at various points in a network. The present technology provides for on demand sweep testing. A remote transmitter test unit or headend test unit can periodically transmit a query message and, based on a response to the query message, can initiate a sweep test. The present technology provides for automatic generation of a sweep profile for a sweep test. Based on an analysis of a frequency spectrum on a network, the sweep profile provides parameters for conducting a sweep test. The present technology provides for Orthogonal Frequency-Division Multiplexing (OFDM) table generation and OFDM sweep testing.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: January 30, 2024
    Assignee: VeEX Inc.
    Inventors: Christopher C. Collins, Charles J. Kiss, Jr., Michael Collins, Thomas R. Morley
  • Patent number: 11881889
    Abstract: Embodiments provide a method for generating a hopping pattern for transmitting a plurality of sub-data packets in a communication system. The method has a step of deriving a hopping pattern from a binary sequence, wherein an autocorrelation function of the binary sequence has autocorrelation side maximums with a predetermined maximum value. The method further has a step of determining a maximum sub-data packet length for the plurality of sub-data packets in dependence on a total emission duration of the plurality of sub-data packets indicated by the hopping pattern, and a minimum value of a difference sequence of a sorted difference number series derived from the binary sequence.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: January 23, 2024
    Inventors: Gerd Kilian, Josef Bernhard, Johannes Wechsler, Jakob Kneissl, Raimund Meyer, Frank Obernosterer, Thomas Kauppert, Hristo Petkov
  • Patent number: 11870486
    Abstract: Systems and methods for data transmission within the ultra-wideband ranging protocol include a first UWB device which determines a transmission block comprising a plurality of rounds each representing a period of time. The first UWB device performs a first wireless communication to perform ranging between the first UWB device and a second UWB device, within a first round of the plurality of rounds. The first UWB device may perform a second wireless communication to communicate data between the first UWB device and the second UWB device, which may be within the first round or a second round.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: January 9, 2024
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Carlos Horacio Aldana, Carlos Bocanegra Guerra, Abhishek Kumar Agrawal, Qiyue Zou
  • Patent number: 11863228
    Abstract: A communications node operable to communicate with another communications node over a communications channel having a plurality of frequency resources, the communications node includes data defining a division of the communications channel into a plurality of contiguous sub-bands each having N frequency resources, wherein each frequency resource in a sub-band has a corresponding frequency resource in each of the other sub-bands, data defining an initial allocation of the frequency resources, a resource determination module operable to apply a frequency shift to the initially allocated frequency resources in accordance with a frequency hopping sequence to determine frequency resources to use for communicating information with the other communications node, wherein the frequency shift applied moves the initially allocated frequency resources to corresponding frequency resources in another sub-band, a transceiver for communicating information with the other communications node using the determined frequency reso
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: January 2, 2024
    Inventors: Robert Arnott, Yassin Aden Awad
  • Patent number: 11863144
    Abstract: Apparatus and methods for non-invasively monitoring an oscillation signal in an effort to provide a more reliable oscillation signal. An example oscillation circuit generally includes an oscillator configured to generate an oscillation signal, the oscillator comprising an oscillator core circuit for coupling to a resonator and configured to generate the oscillation signal to enable the resonator to resonate and an adjustable current source coupled to the oscillator core circuit and configured to control an amplitude of the oscillation signal; a first automatic gain control (AGC) circuit having an input coupled to an output of the oscillator and having an output coupled to a control input of the adjustable current source; a second AGC circuit configured to replicate the first AGC circuit; and logic having a first input coupled to the output of the first AGC circuit and having a second input coupled to an output of the second AGC circuit.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: January 2, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Shunta Iguchi, Nikunj Mehta, Michael Naone Farias
  • Patent number: 11855816
    Abstract: A signal transmission system includes an equalization filter configured to filter an input signal based at least in part on a feedback signal, a slicer configured to generate data based on the filtered input signal at a plurality of different phases, a synchronizer configured to compute a phase delay between the input signal at each of the different phases and the data, and a pattern generator configured to generate the feedback signal at a phase adjusted by the phase delay.
    Type: Grant
    Filed: January 3, 2022
    Date of Patent: December 26, 2023
    Assignee: Texas Instruments Incorporated
    Inventors: Rakesh Manjunath, Aravind Ganesan, Ani Xavier, Jagannathan Venkataraman, Abhishek Agrawal, Charls Babu, Aditya Kumar
  • Patent number: 11843411
    Abstract: Disclosed herein are related to a co-existence of wireless communications over different protocols. In one aspect, two devices may communicate with each other through a wireless link. The two devices may communicate latency sensitive data (e.g., artificial reality data) through one or more frequency bands, according to a first wireless communication protocol. Meanwhile, another device in the vicinity may communicate or attempt to communicate through a portion of the one or more frequency bands, according to a second wireless communication protocol. In one aspect, a frequency band, transmission power, and/or duty cycle of transmission of the another device for communication over the second communication protocol and can set or controlled, to avoid interfering with the communication over the first communication protocol.
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: December 12, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventor: Carlos Horacio Aldana
  • Patent number: 11838044
    Abstract: A system is disclosed, comprising: a wireless fronthaul access point coupled to a radio mast and in communication with a remote baseband unit, the wireless fronthaul access point further comprising a first millimeter wave wireless interface; and an antenna-integrated radio for providing access to user equipments (UEs), mounted within line of sight on the radio mast with the wireless fronthaul access point, the antenna-integrated radio further comprising: a second millimeter wave wireless interface configured to receive the digital I and Q signaling information from the remote baseband unit wirelessly via the wireless fronthaul access point, wherein the wireless fronthaul access point thereby wirelessly couples the remote baseband unit and the antenna-integrated radio.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: December 5, 2023
    Assignee: Parallel Wireless, Inc.
    Inventors: Steven Paul Papa, Rajesh Kumar Mishra
  • Patent number: 11829864
    Abstract: An energy-efficient multiplication circuit uses analog multipliers and adders to reduce the distance that data has to move and the number of times that the data has to be moved when performing matrix multiplications in the analog domain. The multiplication circuit is tailored to bitwise multiply the innermost product of a rearranged matrix formula generate a matrix multiplication result in form of a current that is then digitized for further processing.
    Type: Grant
    Filed: November 8, 2022
    Date of Patent: November 28, 2023
    Assignee: Analog Devices, Inc.
    Inventors: Sung Ung Kwak, Robert Michael Muchsel
  • Patent number: 11824572
    Abstract: A digital filter circuit for processing at least one signal is described. The digital filter circuit includes an input circuit, a first filter sub-circuit, and a second filter sub-circuit. The input circuit is configured to receive at least two real-valued input signals and/or at least one complex-valued input signal. The digital filter circuit has a first configuration that is associated with complex-valued input signals, wherein in the first configuration the first filter sub-circuit is configured to filter a real part of the at least one complex-valued input signal and the second filter sub-circuit is configured to filter an imaginary part of the at least one complex-valued input signal.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: November 21, 2023
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventor: Manuel Stein
  • Patent number: 11824573
    Abstract: A beamforming maximum ratio combining (MRC) pre-processing system for adjacency removal of HDR includes a first filter module implemented in a digital radio receiver and allowing only a low side band signal having a frequency lower than a center frequency of a radio signal in a selected channel to pass therethrough and a processor module performing beamforming on the selected channel based on a difference in gain value between the signal that has passed through the filter module and an original signal that has not passed through the filter module.
    Type: Grant
    Filed: May 8, 2023
    Date of Patent: November 21, 2023
    Assignee: RF2Digital Inc.
    Inventors: Seong Jun Kim, Sung Hyun Yoon, Chul Yong Uhm, Tae Hoon Kim, Hyun Chul Shin, Jong Il Park
  • Patent number: 11824579
    Abstract: A chirp spread spectrum (CSS) receiver may reject, based on multiple data alignment chirps that includes an attribute identifier that is a mismatch to one or more preconfigured identifiers, a message early and before fully receiving/decoding the message. The multiple data alignment chirps may enable usage of a larger range of IDs than a single chirp signal. A receiver may receive a sequence of training chirps for symbol alignment followed by multiple opposite chirps for data alignment. Training chirps may be processed through a fast-Fourier transform (FFT) and the resulting values accumulated until a threshold is exceeded. Using symbol alignment from the training chirps, the receiver may decode multiple opposite chirps that indicate data alignment and comprise an encoded identifier. The receiver may reject the message and terminate further message processing based on the encoded identifier being a mismatch to preconfigured identifiers or attributes indicated by the encoded identifier.
    Type: Grant
    Filed: December 31, 2021
    Date of Patent: November 21, 2023
    Assignee: Hall Labs LLC
    Inventors: David R. Hall, Mark Hall, John Robinso, Warren Willes
  • Patent number: 11811568
    Abstract: Front-end circuitry for a data receiver and related systems, methods, and devices are disclosed. The front-end circuitry includes a passive equalizer, which includes a signal input, an equalizer output including a first equalizer output and a second equalizer output, a first signal path, and a second signal path. The first signal path is between the signal input and the first equalizer output. The first signal path has a first frequency response. The second signal path is between the signal input and the second equalizer output. The second signal path has a second frequency response. The second frequency response exhibits substantially inverse behavior to that of the first frequency response. An amplifier circuit is configured to combine a first equalizer output signal from the first equalizer output with a second equalizer output signal from the second equalizer output to obtain an equalized output signal.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: November 7, 2023
    Assignee: Microchip Technology, Inc.
    Inventor: Johannes G. Ransijn
  • Patent number: 11791867
    Abstract: A disclosed transmitter for wireless communication includes multiple transmitting antennas, a symbol mapper for mapping an input block including multiple binary bits and representing information to be transmitted to a symbol representing an ordered plurality of complex numbers, a space-time encoder for applying an encoding operator to the symbol to produce a vectorized space-time codeword defining electrical signals to be transmitted by the transmitter, the encoding operator being dependent on a set of predefined stabilizer generators, and circuitry to collectively transmit, by the antennas to multiple receiving antennas of a receiver over a wireless transmission channel, the electrical signals defined by the vectorized space-time codeword. The receiver includes a space-time decoder for recovering the symbol from the electrical signals transmitted by the transmitter using a decoding operation that is based on maximum likelihood inference, and a symbol de-mapper for recovering the input block from the symbol.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: October 17, 2023
    Inventors: S. Andrew Lanham, Travis Cuvelier, Brian R. La Cour, Robert Heath
  • Patent number: 11792054
    Abstract: There is disclosed a method of operating a radio node in a wireless communication network. The method includes communicating utilising signaling, wherein communicating utilising signaling is based on performing pulse-shaping pertaining to the signaling. The disclosure also pertains to related devices and methods.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: October 17, 2023
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Jung-Fu Cheng, Mehrnaz Afshang, Ning He, Dennis Hui
  • Patent number: 11777582
    Abstract: Certain aspects of the present disclosure provide techniques for channel state information (CSI) reporting with frequency domain (FD) compression. More particularly, aspects of the present disclosure provide for codebook subset restriction (CBSR) on per spatial domain (SD) basis amplitude.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: October 3, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Chenxi Hao, Yu Zhang, Chao Wei, Wanshi Chen, Liangming Wu
  • Patent number: 11777548
    Abstract: A receiver concurrently demodulates data transmitted with a plurality of protocols. The receiver utilizes multiple and simultaneous protocol detections at preamble and/or packet payload phases. To provide robust detection and achieve fewer false detections, the receiver extends the cross correlation length once a short cross-correlation is valid. The receiver includes a first demodulator path and a second demodulator path with different filter bandwidths. The second demodulator path includes a decimator that reduces data by two. A correlator bank is coupled to the first and second demodulator paths and concurrently detects preamble symbols associated with a plurality of protocols. A first noise detector is coupled to the first demodulator path and a second noise detector is coupled to the second demodulator path. A first symbol identifier circuit is coupled to the first demodulator path and a second symbol identifier circuit coupled to the second demodulator path to provide packet payload symbol detection.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: October 3, 2023
    Assignee: Silicon Laboratories Inc.
    Inventors: Wentao Li, Yan Zhou, Terry L. Dickey
  • Patent number: 11777547
    Abstract: To provide improved phase noise tolerance and improved identification of certain fault types, a modulation/demodulation procedure is disclosed for 5G and 6G. The transmitter can modulate a message according to the amplitude and phase of the overall waveform to be emitted, modulated according to predetermined amplitude and phase levels of the modulation scheme. The receiver can then separate the received waveform into orthogonal I and Q branches and measure their branch amplitudes, as usual. The receiver can then convert the branch amplitude measurements back into the original amplitude-phase modulation parameters using formulas provided. The receiver can then demodulate the message by comparing the overall amplitude and phase of each message element to the predetermined amplitude and phase levels of the modulation scheme, which thereby provides substantially increased phase noise tolerance at high frequencies.
    Type: Grant
    Filed: March 6, 2023
    Date of Patent: October 3, 2023
    Assignee: ULTRALOGIC 6G, LLC
    Inventors: David E. Newman, R. Kemp Massengill