Patents Examined by Fitwi Hailegiorgis
  • 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: 10305635
    Abstract: A method for transmitting data in a multiple-input-multiple-output space-time coded communication using a mapping table mapping a plurality of symbols defining the communication to respective antennae from amongst a plurality of transmission antennae and to at least one other transmission resource. The mapping table may comprise Alamouti-coded primary segments and may also comprise secondary segments, comprising primary segments. The primary segments in the secondary segments may be defined in accordance to an Alamouti based code pattern applied at the segment level to define a segment-level Alamouti based code.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: May 28, 2019
    Assignee: Apple Inc.
    Inventors: Robert Novak, Hosein Nikopourdeilami, Mo-Han Fong, Sophie Vrzic
  • Patent number: 10237100
    Abstract: Methods and systems for digitization of broadband analog signals may comprise in a radio frequency (RF) transceiver comprising a diplexer, first and second automatic gain and slope control (ASCS) modules, and a combiner): receiving an input RF signal comprising at least two signals, splitting the input RF signal in the frequency domain into first and second signals of different frequency utilizing the diplexer, configuring a frequency-dependent gain level for each of the first and second signals utilizing the first and second ASCS modules, and combining output signals from the first and second ASCS modules utilizing the combiner. The frequency dependent gain levels of the first and second signals may be configured to enable an ADC receiving the combined signal to operate with an effective number of bits (ENOB) of approximately 10.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: March 19, 2019
    Assignee: Entropic Communications LLC
    Inventors: Branislav Petrovic, Itzhak Gurantz
  • Patent number: 10205539
    Abstract: The present disclosure is directed to apparatuses for preventing significant amounts of common mode noise from a PHY transceiver, such as an Ethernet PHY transceiver, from coupling to an unshielded twisted-pair cable. The apparatuses can provide common mode noise isolation, while limiting any common mode noise to differential mode noise (CM-DM) conversion. Common mode noise is generally ignored by a PHY transceiver that receives a differential data signal because of differential signaling. However, when common mode noise is converted to differential mode noise, then data errors can result. Thus, limiting any CM-DM conversion is important.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: February 12, 2019
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Ahmad Chini, Mehmet V. Tazebay
  • Patent number: 10193713
    Abstract: A method for sending and receiving a signal is disclosed, and a corresponding device and system. The method includes performing constellation mapping on a data stream to obtain a mapped signal, and performing pre-filtering on the mapped signal to convert the mapped signal into a narrowband signal filtered signal. The pre-filtering is finite impulse response filtering. A bandwidth of the narrowband signal filtered signal is less than bandwidth of the mapped signal, and the narrowband signal filtered signal is a baud rate signal. The method also includes performing waveform forming according to the narrowband signal filtered signal to obtain a shaped signal, and performing digital-to-analog conversion on the shaped signal to convert a shaped second signal into an analog signal, and sending the analog signal.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: January 29, 2019
    Assignee: Huawei Technologies Co., Ltd
    Inventors: Liangchuan Li, Ling Liu
  • Patent number: 10193716
    Abstract: Methods and systems are described for generating two comparator outputs by comparing a received signal to a first threshold and a second threshold according to a sampling clock, the first and second thresholds determined by an estimated amount of inter-symbol interference on a multi-wire bus, selecting one of the two comparator outputs as a data decision, the selection based on at least one prior data decision, and selecting one of the two comparator outputs as a phase-error indication, the phase error indication selected in response to identification of a predetermined data decision pattern.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: January 29, 2019
    Assignee: KANDOU LABS, S.A.
    Inventors: Ali Hormati, Richard Simpson
  • Patent number: 10181888
    Abstract: Methods and corresponding apparatuses for wireless communication are disclosed. The method for wireless communication includes dividing a two-dimensional antenna array to a plurality of sub-arrays, mapping the two-dimensional antenna array into a one-dimensional vertical channel state information reference signal (CSI-RS) port array for receiving elevation CSI feedback and a one-dimensional horizontal CSI-RS port array for receiving azimuth CSI feedback, and transmitting one or more elevation CSI-RS from the one-dimensional vertical CSI-RS port array and one or more azimuth CSI-RS from the one-dimensional horizontal CSI-RS port array. Methods and corresponding apparatuses for CSI feedback mechanism are also disclosed.
    Type: Grant
    Filed: September 28, 2014
    Date of Patent: January 15, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Chao Wei, Yu Zhang, Jilei Hou
  • Patent number: 10171128
    Abstract: A data transmission method includes the following steps: determining a transmission resource to be used and a complex-valued spreading sequence to be used; processing a data symbol to be sent by using the complex-valued spreading sequence to generate a symbol sequence; and sending the symbol sequence through the transmission resource.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: January 1, 2019
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD.
    Inventors: Weimin Li, Zhifeng Yuan, Zhaohua Lu
  • Patent number: 10162378
    Abstract: Described is a neuromorphic processor for signal denoising and separation. The neuromorphic processor generates delay-embedded mixture signals from an input mixture of pulses. Using a reservoir computer, the delay-embedded mixture signals are mapped to reservoir states of a dynamical reservoir having output layer weights. The output layer weights are adapted based on short-time linear prediction, and a denoised output of the mixture of input signals us generated. The denoised output is filtered through a set of adaptable finite impulse response (FIR) filters to extract a set of separated narrowband pulses.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: December 25, 2018
    Assignee: HRL Laboratories, LLC
    Inventors: Shankar R. Rao, Peter Petre, Charles E. Martin
  • Patent number: 10153806
    Abstract: Described is a cognitive signal processor that can denoise an input signal that contains a mixture of waveforms over a large bandwidth. Delay-embedded mixture signals are generated from a mixture of input signals. The delay-embedded mixture signals are mapped with a reservoir computer to reservoir states of a dynamical reservoir having output layer weights. The output layer weights are adapted based on short-time linear prediction. Finally, a denoised output of the mixture of input signals is generated.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: December 11, 2018
    Assignee: HRL Laboratories, LLc
    Inventors: Peter Petre, Shankar R. Rao
  • Patent number: 10136292
    Abstract: A power outlet for controlling power to an external device and transmitting data to the external device, the power outlet including: a housing containing at least one alternating-current power input connection; a power output connection; a data connector; a sensor module; a wireless communication module, including an antenna; a processing unit configured to receive data and control an electrically connected device through the power output connection and/or data connector based on the received data.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: November 20, 2018
    Assignee: LIFI Labs, Inc.
    Inventors: Phillip Bosua, Marc Alexander
  • Patent number: 10135533
    Abstract: Embodiments disclosed in the detailed description include analog distributed antenna system (DAS) supporting distribution of digital communications signals interfaced from a digital signal source and analog radio frequency (RF) communications signals. Analog RF communications signals received from analog RF signal sources are distributed in the analog DAS without being digitized. The analog DAS is also configured to interface with digital signal sources and compatibly distribute digital communications signals. Hence, a digital signal interface in head-end equipment (HEE) is configured to convert downlink digital communications signals to downlink analog RF communications signals for distribution to a plurality of remote units. The digital signal interface is also configured to convert uplink analog RF communications signals to uplink digital communications signals for distribution to the digital signal source(s).
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: November 20, 2018
    Assignee: Corning Optical Communications Wireless Ltd
    Inventors: Ami Hazani, Eytan Radian
  • Patent number: 10129053
    Abstract: A nonlinear equalizer for iteratively equalizing a data communication channel, which comprises a transmitter at the input of the channel, for transmitting data and one or more training sequences over the channel; a receiver at the output of the channel, for receiving the data and the one or more training sequences; a sampling circuit for sampling received data; a processor, for processing the samples. The processor is adapted to calculate the derivative of the MSE for each of the FFE taps; calculate the derivative of the variance of the enhanced noise with the FFE taps; iteratively update the FFE coefficients, while during each update, injecting samples of a known training sequence into the channel.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: November 13, 2018
    Assignee: MULTIPHY LTD.
    Inventor: Or Vidal
  • Patent number: 10128820
    Abstract: Described is a cognitive signal processor for signal denoising and blind source separation. During operation, the cognitive signal processor receives a mixture signal that comprises a plurality of source signals. A denoised reservoir state signal is generated by mapping the mixture signal to a dynamic reservoir to perform signal denoising. At least one separated source signal is identified by adaptively filtering the denoised reservoir state signal.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: November 13, 2018
    Assignee: HRL Laboratories, LLC
    Inventors: Peter Petre, Bryan H. Fong, Shankar R. Rao, Charles E. Martin
  • Patent number: 10116383
    Abstract: An outphasing amplifier having: a first branch arranged to receive and process a first branch signal, the first branch signal being phase modulated, with constant amplitude envelope; and a second branch arranged to receive and process a second branch signal, the second branch signal being phase modulated, with constant amplitude envelope, and at least a portion of the second branch signal anti-phase from the first branch signal, wherein each branch includes: circuitry arranged to process the signal to reduce the energy in sidebands of the signal away from the central frequency, while retaining the phase information in the signal; and an amplifier arranged to amplify the filtered and re-asserted branch signal.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: October 30, 2018
    Assignee: NXP B.V.
    Inventors: Robin Wesson, Mustafa Acar
  • Patent number: 10116474
    Abstract: Systems and methods may receive data from a data interface of a base platform, convert the data into an analog signal and modulate the analog signal onto a direct current (DC) power line coupled to a connector of the base platform. Additionally, the modulated analog signal may be received from a DC power line coupled to a connector of a tablet platform, wherein the modulated analog signal is converted to a digital signal and demodulated to recover the data. In one example, the data includes user input data associated with an input device including one or more of a mouse, a keyboard, a keypad or a touchpad.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: October 30, 2018
    Assignee: Intel Corporation
    Inventor: Jeremy Burr
  • Patent number: 10097387
    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: August 15, 2016
    Date of Patent: October 9, 2018
    Assignee: Verily Life Sciences LLC
    Inventors: Robert Francis Wiser, Daniel Yeager, Justin Schauer, Kannan Aryaperumal Sankaragomathi
  • Patent number: 10090897
    Abstract: A communication system includes at least one transmitting unit and at least one receiving unit. The at least one transmitting unit is configured to transmit at least one input signal after precoding it with at least one precoding matrix. The at least one receiving unit wirelessly coupled with the at least one transmitting unit is configured to receive the at least one precoded input signal, and generate at least one channel quality signal corresponding to the at least one precoded input signal, in which the at least one transmitting unit generates at least one magnitude information estimate or at least one phase information estimate or at least one of both for at least one channel state information according to the at least one channel quality signal, the at least one precoding matrix and at least one noise size signal.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: October 2, 2018
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: David W. Lin, Yen-Kai Wang, Yu-Sheng Guo
  • Patent number: 10090975
    Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for receiving broadcast signals, the apparatus comprises a receiver to receive the broadcast signals, a demodulator to demodulate the received broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme, a frame parser to parse a signal frame from the demodulated broadcast signals, wherein the signal frame includes at least one service data, a time deinterleaver to time deinterleave each the service data, wherein the time deinterleaving is performed depending on a number of physical paths for each the service data, a damapper to demap the time deinterleaved data and a decoder to decode the demapped service data.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: October 2, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Jongseob Baek, Woosuk Ko, Sungryong Hong
  • Patent number: 10075284
    Abstract: A system and method for clock phase alignment at a plurality of line cards over a backplane of a communication system. Phase adjustments are continually made for the clock signals at the line cards by dynamically measuring the propagation delay between the timing device and each of the plurality of line cards and continuously communicating the appropriate phase adjustment to each of the plurality of line cards.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: September 11, 2018
    Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
    Inventors: Silvana Rodrigues, Michael Rupert, Zaher Baidas, Leon Goldin