Patents Examined by Chieh M. Fan
  • Patent number: 10454522
    Abstract: A frequency hopping communication recovering method includes: communicating a first device and a second device within multiple frequency channels respectively in multiple time slots to perform a frequency hopping communication; in a communication recovery operation, configuring the first device to be operated and locked within a recovery frequency channel in the frequency channels; and in the communication recovery operation, configuring the second device to scan within the frequency channels respectively in multiple recovery time slots. The time slots have a first length, and the recovery time slots have a second length shorter than the first length.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: October 22, 2019
    Assignee: HTC Corporation
    Inventor: Yao-Te Tsai
  • Patent number: 10447516
    Abstract: To obtain a high-quality enhanced signal, there is provided an apparatus including a transformer that transforms a mixed signal, in which a first signal and a second signal coexist, into a phase component for each frequency and one of an amplitude component and a power component for each frequency, a change amount generator that generates a change amount of the phase component at a predetermined frequency by using a series of data with a cross-correlation weaker than that of the phase components and randomness lower than that of random numbers, a phase controller that controls the phase component by using the change amount provided from the change amount generator, and an inverse transformer that generates an enhanced signal by using the phase component having undergone control processing by the phase controller.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: October 15, 2019
    Assignee: NEC CORPORATION
    Inventor: Akihiko Sugiyama
  • Patent number: 10448203
    Abstract: A beacon anchor may include a signal generator configured to generate an ultra-wide band signal inclusive of a unique identifier associated with the beacon anchor, where the UWB signal is a pulse sequence. A transceiver may be in communications with the signal generator. Responsive to receiving the UWB signal from the signal generator, the UWB signal may be broadcast. A processing unit may be in communication with the transceiver, and, responsive to receiving a unicast communications session request from a portable device, be configured to establish a unicast communications session with the portable device to enable a distance between the portable device and beacon anchor to be determined. Through use of UWB signals, relative position (e.g., in front of or behind the beacon anchor) may be determined, thereby enabling different actions to be taken in response to determining the relative position.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: October 15, 2019
    Assignee: Datalogic IP Tech S.R.L.
    Inventors: Marco Bottazzi, Enrico Savioli, Federico Natali
  • Patent number: 10447465
    Abstract: A signaling system is disclosed. The signaling system includes a first integrated circuit (IC) chip to receive a data signal and a strobe signal. The first IC includes circuitry to sample the data signal at times indicated by the strobe signal to generate phase error information and circuitry to output the phase error information from the first IC device. The system further includes a signaling link and a second IC chip coupled to the first IC chip via the signaling link to output the data signal and the strobe signal to the first IC chip. The second IC chip includes delay circuitry to generate the strobe signal by delaying an aperiodic timing signal for a first time interval and timing control circuitry to receive the phase error information from the first IC chip and adjust the first time interval in accordance with the phase error information.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: October 15, 2019
    Assignee: Rambus Inc.
    Inventors: Bret G. Stott, Craig E. Hampel, Frederick A. Ware
  • Patent number: 10435869
    Abstract: Spatial-temporal compression of sensing data from a plurality of sensors involves using a plurality of sensors to obtain measured physical data associated with a plurality of sensed elements. At each of a plurality of sampling times a set of N sampled data is acquired from the N sensed elements corresponding to the measured physical data. The sets of sampled data are analyzed to obtain statistical characteristic information. Thereafter, one or more frames of compressed data is generated using the statistical characteristic information to facilitate temporal and spatial data compression.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: October 8, 2019
    Assignee: Navilas Solutions, Inc.
    Inventors: Inseop Lee, Minkyu Lee, Jaesik Lee, Andrew M. Chon
  • Patent number: 10419043
    Abstract: Systems and methods are provided for millimeter-wave (MMW) communication, the system includes a transceiver chip to generate and to receive signals. An interface is used to communicate the signals between the transceiver chip and one or more active antenna modules. The signals include modulated MMW signals and control signals. The transceiver chip includes baseband circuitry, up and down conversion mixers, and RF front-end circuitry. An active antenna module receives a first modulated MMW signal from the interface for transmission via antennas and to receive a second modulated MMW signal from the antennas for transmission through the interface to the transceiver chip.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: September 17, 2019
    Assignee: Avago Technologies International Sales PTE. Limited
    Inventors: Bevin George Perumana, Saikat Sarkar, Tirdad Sowlati
  • Patent number: 10419061
    Abstract: A communications apparatus includes a hardware subsystem including a test signal control component, a duplexer component, and Radio Frequency processing components. The Radio Frequency processing components include a transmitter chain portion and a receiver chain portion having a signal sensitivity threshold associated therewith, to a receive side port of the duplexer component. The test signal control component is arranged to cooperate with the transmitter chain to generate a test signal. A portion of the test signal control component is leaked by the duplexer component. The test signal control component is also configured to ensure that any irradiated power of the test signal complies with the transmit OFF power threshold requirement and the portion of the test signal leaked is above the signal sensitivity threshold of the receiver chain portion.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: September 17, 2019
    Assignee: u-blox AG
    Inventors: Norman John Beamish, James Connelly
  • Patent number: 10419255
    Abstract: The present disclosure relates to a method that includes calculating a first frequency drift associated with an oscillator at a current temperature; based on the calculation, generating a first signal indicative of temperature compensation data; generating a second signal indicative of packet data and a modulation scheme; using the first signal, the second signal, and a first predetermined signal to generate a first tuning signal; and using the first tuning signal to tune a first capacitor array coupled to the oscillator and a second tuning signal to tune a second capacitor array coupled to the oscillator such that (i) the oscillator generates a modulated RF signal indicative of the packet data and (ii) the modulated RF signal has a second frequency drift that is less than a threshold.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: September 17, 2019
    Assignee: Verily Life Sciences LLC
    Inventors: Robert Francis Wiser, Daniel Yeager, Justin Schauer, Kannan Aryaperumal Sankaragomathi
  • Patent number: 10419253
    Abstract: A technique for wireless signal processing performed at a receiver in a wireless network includes receiving, by a wireless receiver, an orthogonal frequency division multiplexing (OFDM) signal on a shared downlink channel from the wireless network, wherein the OFDM signal includes contribution from a serving cell signal and at least one interfering signal, obtaining an estimate of the serving cell signal, calculating a residual signal by subtracting the estimate of the serving cell signal from the OFDM signal, generating a whitened residual signal by whitening the residual signal, obtaining an estimate of a modulation scheme of the at least one interfering signal by performing a likelihood-based blind classification on the whitened residual signal, and performing further receiver-side processing of the serving cell signal using the estimate of the modulation scheme of the at least one interfering signal.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: September 17, 2019
    Assignees: ZTE Corporation, ZTE Canada Inc.
    Inventors: Xing Qian, LiJuan Zhao, JunLing Zhang
  • Patent number: 10404299
    Abstract: Described is a cognitive signal processor (CSP) for signal denoising. In operation, the CSP receives a noisy signal as a time-series of data points from a mixture of both noise and one or more desired waveform signals. The noisy signal is linearly mapped to reservoir states of a dynamical reservoir. A high-dimensional state-space representation is then generated of the noisy signal by combining the noisy signal with the reservoir states. A delay-embedded state signal is generated from the reservoir states. The reservoir states are denoised by removing noise from each reservoir state signal, resulting in a real-time denoised spectrogram of the noisy signal. A denoised waveform signal is generated combining the denoised reservoir states. Additionally, the signal denoising process is implemented in software or digital hardware by converting the state-space representation of the dynamical reservoir to a system of delay difference equations and then applying a linear basis approximation.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: September 3, 2019
    Assignee: HRL Laboratories, LLC
    Inventors: Peter Petre, Bryan H. Fong, Shankar R. Rao
  • Patent number: 10396851
    Abstract: It is made possible to compensate for a waveform distortion having semi-fixed characteristics and a waveform distortion varying at high speed with a high degree of accuracy.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: August 27, 2019
    Assignee: NEC CORPORATION
    Inventor: Junichi Abe
  • Patent number: 10396869
    Abstract: Methods and apparatus for processing an OFDM MIMO signal in a system having at least two transmitters arranged to transmit an output signal pair that includes operating a series of transformations on a pair of input signals so that each stream of the output signal pair contains decodable information from both streams of the input signal pair.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: August 27, 2019
    Assignee: British Broadcasting Corporation
    Inventors: Peter Neil Moss, Adam Wiewiorka
  • Patent number: 10396870
    Abstract: A system and method for system and method for multiplexing control and data channels in a multiple input, multiple output (MIMO) communications system are provided. A method for transmitting control symbols and data symbols on multiple MIMO layers includes selecting a first set of codewords from Ncw codewords, distributing control symbols onto the first set of layers, placing data symbols of the first set of codewords onto the first set of layers, placing data symbols of the (Ncw-Ncw1) remaining codewords to remaining layers if Ncw>Ncw1, and transmitting the multiple MIMO layers. The first set of codewords is associated with a first set of layers from the multiple MIMO layers, and the Ncw codewords are to be transmitted simultaneously and the first set of codewords comprises Ncw1 MIMO codewords, where Ncw and Ncw1 are integers greater than or equal to 1. The remaining layers are MIMO layers from the multiple MIMO layers not in the first set of layers.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: August 27, 2019
    Assignee: Futurewei Technologies, Inc.
    Inventors: Yufei Blankenship, Weimin Xiao, Ying Jin
  • Patent number: 10380062
    Abstract: Described is a system for signal denoising. The system linearly maps a noisy input signal into a high-dimensional reservoir, where the noisy input signal is a time-series of data points from a mixture of waveforms. A high-dimensional state-space representation of the mixture of waveforms is created by combining the noisy input signal with reservoir states. A delay embedded state signal is generated from the reservoir states, and a denoised spectrogram of the noisy input signal is generated.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: August 13, 2019
    Assignee: HRL Laboratories, LLC
    Inventors: Shankar R. Rao, Peter Petre
  • Patent number: 10382073
    Abstract: An RF transmitter arrangement using analog pre-distortion is disclosed. The arrangement includes lower bandwidth circuitry, an analog pre-distorter, and a non-linear amplifier chain. The lower bandwidth circuitry is configured to generate an analog signal. The analog pre-distorter is configured to apply a non-linear distortion to the analog original signal based on a coupled feedback signal in order to generate an RF output signal. The non-linear amplifier chain is configured to amplify the RF output signal to generate a transmission signal relative to the analog original signal. The coupled feedback signal is derived from the transmission signal.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: August 13, 2019
    Assignee: Infineon Technologies AG
    Inventors: Peter Singerl, Thomas Magesacher, Martin Mataln
  • Patent number: 10373659
    Abstract: A device includes a signal input to receive a data input as part of a bit stream. The device also includes a reference input to receive a reference signal. The device further includes push circuitry to receive a first weight value, receive a first correction value, and generate a push signal based on the first weight value and the first correction value to selectively modify the data input as well as pull circuitry to receive a second weight value, receive a second correction value, and generate a pull signal based on the second weight value and the second correction value to selectively modify the data input.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: August 6, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Raghukiran Sreeramaneni, Jennifer E. Taylor
  • Patent number: 10367562
    Abstract: A method of transmitting a signal, which is transmitted by a transmitting end in a wireless communication system, is disclosed in the present specification. Specifically, the method includes the steps of receiving Doppler information on a plurality of transmission beams from a receiving end; selecting a beam combination using the received Doppler information, wherein the beam combination is selected from a plurality of beam combinations depending on effective Doppler spread values of the beam combinations, wherein each of the beam combinations consists of two or more transmission beams among the plurality of transmission beams; and transmitting the signal to the receiving end using at least one transmission beam included in the selected beam combination.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: July 30, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jiwon Kang, Kitae Kim, Kilbom Lee, Kungmin Park, Heejin Kim
  • Patent number: 10367485
    Abstract: To provide a receiver, a communication device, and a communication method capable of restoring a signal transmitted via a non-contact transmission channel with high accuracy. A communication device has a transmission circuit that converts an input signal into a pulse, a non-contact transmission channel that has a primary side coil and a secondary side coil and transmits the pulse from the transmission circuit in a non-contact manner, a restoration circuit that restores the input signal on the basis of a reception signal corresponding to the pulse transmitted via the non-contact transmission channel, an initialization unit that initializes an output of the non-contact transmission channel, and an initialization control unit that outputs a control signal of controlling the initialization unit on the basis of the reception signal corresponding to the pulse received via the non-contact transmission channel.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: July 30, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Hirokazu Nagase, Koichi Takeda, Shunichi Kaeriyama
  • Patent number: 10355851
    Abstract: A synchronization solution is described, which, in one aspect, allowed finer grained segmentation of clock domains on a chip. This solution incorporates computation into the synchronization overhead time and is called Gradual Synchronization. With Gradual Synchronization as a synchronization method, the design space of a chip could easily mix both asynchronous and synchronous blocks of logic, paving the way for wider use of asynchronous logic design.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: July 16, 2019
    Assignee: Cornell University
    Inventors: Rajit Manohar, Sandra J. Jackson
  • Patent number: 10355681
    Abstract: An important component in digital circuits is a phase rotator, which permits precise time-shifting (or equivalently, phase rotation) of a clock signal within a clock period. A digital phase rotator can access multiple discrete values of phase under digital control. Such a device can have application in digital clock synchronization circuits, and can also be used for a digital phase modulator that encodes a digital signal. A digital phase rotator has been implemented in superconducting integrated circuit technology, using rapid single-flux-quantum logic (RSFQ). This circuit can exhibit positive or negative phase shifts of a multi-phase clock. Arbitrary precision can be obtained by cascading a plurality of phase rotator stages. Such a circuit forms a phase-modulator that is the core of a direct digital synthesizer that can operate at multi-gigahertz radio frequencies.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: July 16, 2019
    Assignee: Hypres, Inc.
    Inventor: Amol Ashok Inamdar