Patents Examined by Leila Malek
  • Patent number: 10560130
    Abstract: A multiway switch, a radio frequency system, and a wireless communication device are provided. The multiway switch includes six T ports and 2n P ports. The six T ports include two first T ports and each of the two first T ports is coupled with all of the 2n P ports. n is an integer and n?2. The multiway switch is configured to be coupled with a radio frequency circuit and an antenna system of a wireless communication device operable in a dual-frequency single-transmit mode, to implement a preset function of the wireless communication device. The antenna system includes 2n antennas corresponding to the 2n P ports. The preset function is a function of transmitting a sounding reference signal (SRS) through the 2n antennas in turn.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: February 11, 2020
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Jian Bai
  • Patent number: 10560165
    Abstract: When an STA receives first to fifth SSW frames (first training frames) transmitted from an AP, the STA measures reception quality thereof, and transmits a reception quality measurement result to the AP by incorporating the reception quality measurement result in an SSW-ACK frame (first feedback frame). In response, the AP selects a beam pattern satisfying a specific selection criterion based on the reception quality measurement result and employs the selected beam pattern as the transmission beam pattern for use in transmission to the STA.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: February 11, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Hiroshi Takahashi, Naganori Shirakata, Masataka Irie
  • Patent number: 10555040
    Abstract: Methods and apparatus for classifying a traffic packet service of a traffic flow to a client device, a state and/or video resolution of a streaming video player in a client device. The apparatus includes a memory, and a communication interface configured to obtain TCP/IP or UDP/IP headers of packets to a client device, at least one processor operably connected to the memory, the at least one processor configured to detect a start of a traffic flow, and buffer a first number of packets for the traffic flow, extract features from UDP/IP or TCP/IP headers of a second number of packets belonging to the detected traffic flow, and obtain a flow service classifier for classifying a service type of the traffic flow, and classify the service type of the traffic flow by applying the extracted features to the flow service classifier.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: February 4, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Vikram Chandrasekhar, Yuqiang Heng, Jianzhong Zhang
  • Patent number: 10554469
    Abstract: Methods and apparatus for frequency offset estimation are disclosed. In an exemplary embodiment, a method includes determining a demodulation reference signal (DMRS) frequency offset estimate from DMRS symbols in a received signal, and determining a cyclic prefix (CP) frequency offset estimate from cyclic prefix values in the received signal. The method also includes combining the DMRS and CP frequency offset estimates to determine a final frequency offset estimate. In an exemplary embodiment, an apparatus includes a DMRS frequency offset estimator that determines a DMRS frequency offset estimate based on DMRS symbols received in an uplink transmission, and a cyclic prefix (CP) frequency offset estimator that determines a CP frequency offset estimate based on cyclic prefix values in the uplink transmission. The apparatus also includes an offset combiner that combines the DMRS frequency offset estimate with the CP frequency offset estimate to generate a final frequency offset estimate.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: February 4, 2020
    Assignee: Cavium, LLC.
    Inventors: Hyun Soo Cheon, Hong Jik Kim, Tejas M. Bhatt
  • Patent number: 10554255
    Abstract: A communication system includes a demodulator configured to demodulate an amplified modulated signal responsive to a first carrier signal. The demodulator includes a filter and a gain adjusting circuit. The filter is configured to generate a filtered first signal based on a first signal. The first signal is based on the first carrier signal and the amplified modulated signal. The filter has a gain adjusted based on a set of control signals. The gain adjusting circuit is coupled to the filter, and configured to generate the set of control signals based on at least a voltage of the filtered first signal or a voltage of a second signal. The gain adjusting circuit includes a first peak detector configured to output a peak value of the voltage of the second signal. The voltage of the second signal includes a voltage of the first signal or a voltage of a reference signal.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: February 4, 2020
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Feng Wei Kuo, William Wu Shen, Chewn-Pu Jou, Huan-Neng Chen, Lan-Chou Cho
  • Patent number: 10554235
    Abstract: In accordance with one or more embodiments, a MIMO transceiver generates first electromagnetic signals convey first data in accordance with one or more MIMO techniques. The MIMO transceiver generates, responsive to the first electromagnetic signals, first electromagnetic waves on a plurality of transmission lines, wherein the first electromagnetic waves are guided by a plurality of surfaces of the plurality of transmission lines, wherein the first electromagnetic waves propagate along the plurality of transmission lines without requiring an electrical return path, wherein the first electromagnetic waves convey the first data.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: February 4, 2020
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Giovanni Vannucci, Paul Shala Henry, Thomas M. Willis, III
  • Patent number: 10547490
    Abstract: A digital triggering system for processing data relating to a signal received is described, with an analog-to-digital converter, an IQ data source providing IQ data, a first digital signal processor, and at least a second digital signal processor. The first digital signal processor is connected with the IQ data source via a first signal path. The second digital signal processor is connected with the IQ data source via a second signal path. The first digital signal processor has at least a first signal processing parameter. The second digital signal processor has at least a second signal processing parameter. The first signal processing parameter and the second signal processing parameter are independent from each other. The first digital signal processor generates a trigger signal based upon a characteristic of the IQ data obtained from the IQ data source. The first digital signal processor triggers the second digital signal processor via the trigger signal to acquire IQ data obtained from the IQ data source.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: January 28, 2020
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Andreas Lagler, Florian Ramian
  • Patent number: 10536199
    Abstract: According to the present specification, a method for reporting channel state information (CSI) in a wireless communication system, which is performed by a UE includes: transmitting to a base station UE capability information including control information indicating a codebook configuration supported by the UE with respect to a specific class related with the CSI reporting.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: January 14, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Jonghyun Park, Kijun Kim, Haewook Park
  • Patent number: 10536304
    Abstract: A receiver is equipped with an adaptive phase-offset controller and associated timing-calibration circuitry that together shift the timing for a data sampler and a digital equalizer. The sample and equalizer timing is shifted to a position with less residual inter-symbol interference (ISI) energy relative to the current symbol. The shifted position may be calculated using a measure of signal quality, such as a receiver bit-error rate or a comparison of filter-tap values, to optimize the timing of data recovery.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: January 14, 2020
    Assignee: Rambus Inc.
    Inventors: Qi Lin, Brian Leibowitz, Hae-Chang Lee, Jihong Ren, Kyung Suk Oh, Jared L. Zerbe
  • Patent number: 10530440
    Abstract: A base station antenna includes a first set of radiating elements that are configured to generate a first antenna beam that has a first peanut-shaped antenna pattern in an azimuth plane and a second set of radiating elements that are configured to generate a second antenna beam that has a second peanut-shaped antenna pattern in the azimuth plane. A longitudinal axis of the first peanut-shaped antenna pattern in the azimuth plane is rotated approximately ninety degrees from a longitudinal axis of the second peanut-shaped antenna pattern in the azimuth plane.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: January 7, 2020
    Assignee: CommScope Technologies LLC
    Inventors: Peter J. Bisiules, Martin L. Zimmerman
  • Patent number: 10530512
    Abstract: In one embodiment, a method receives a first time from a network device. The first time is derived from a first timing source in a first domain. The method receives a second time in a second domain from a second timing source. A difference time value is calculated between the first time and the second time. The method then sends the difference time value to the network device where the network device uses the difference time value to send a delay value to other computing devices to synchronize timing of the other computing devices in the second domain. The other computing devices are configured to synchronize the respective time using the delay value with mobile network devices to allow timing synchronization between the mobile network devices.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: January 7, 2020
    Assignee: ARRIS Enterprises LLC
    Inventors: Yair Neugeboren, Eliezer Baruch, Ian G. Wheelock
  • Patent number: 10523295
    Abstract: Certain aspects of the present disclosure provide methods and apparatus for enhancing a beamforming training procedure. For example, an apparatus can include a processing system that generates a plurality of transmit beamforming refinement frames for a transmit sector sweep that each include a preamble, a data field, at least one beamforming training field, identification of a transmit antenna array to be used for transmitting the at least one beamforming training field, and a status indication of whether the transmit beamforming refinement frame is a last transmit beamforming refinement frame in the transmit sector sweep for one or more receive antenna arrays of a wireless node. The apparatus also includes a first interface that outputs the transmit beamforming refinement frames using a first transmit beamforming sector for the preambles and data fields, and one or more second transmit beamforming sectors for subfields of the beamforming training fields.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: December 31, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Assaf Yaakov Kasher, Amichai Sanderovich, Solomon Trainin, Alecsander Petru Eitan
  • Patent number: 10524007
    Abstract: Methods and apparatus for classifying a traffic packet service of a traffic flow to a client device, a state and/or video resolution of a streaming video player in a client device. The apparatus includes a memory, and a communication interface configured to obtain TCP/IP or UDP/IP headers of packets to a client device, at least one processor operably connected to the memory, the at least one processor configured to detect a start of a traffic flow, and buffer a first number of packets for the traffic flow, extract features from UDP/IP or TCP/IP headers of a second number of packets belonging to the detected traffic flow, and obtain a flow service classifier for classifying a service type of the traffic flow, and classify the service type of the traffic flow by applying the extracted features to the flow service classifier.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: December 31, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Vikram Chandrasekhar, Yuqiang Heng, Jianzhong Zhang
  • Patent number: 10523411
    Abstract: Some embodiments include apparatus having sampling circuitry, a first circuit path, a second circuit path, and a digitally controlled oscillator (DCO). The sampling circuit samples an input signal and provide data information and phase error information based on the input signal. A first circuit path provides proportional control information based on the data information and phase error information. A second circuit path provides integral control information based on the data information and phase error information. The first circuit path operates at a frequency higher than the second circuit path. The DCO generates a clock signal and controls the timing of the clock signal based on the integral control information and the proportional control information.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: December 31, 2019
    Assignee: Intel Corporation
    Inventors: Shenggao Li, Ji Chen, Michael De Vita, Fulvio Spagna, Guluke Tong
  • Patent number: 10516554
    Abstract: Transmitting device for a wireless communication system and method therein for transmitting data. The transmitting device comprises a processor, configured to: obtain a channel response (h); determine pre-processing coefficients (g0, g1, g2) of a pre-processor structure, based on the obtained channel response (h); and pre-process the data, based on the pre-processor structure and the determined pre-processing coefficients (g0, g1, g2). The transmitting device comprises a transmitter, configured to transmit the pre-processed data.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: December 24, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Premanandana Rajatheva
  • Patent number: 10498414
    Abstract: Methods and apparatuses for CSI reporting mechanisms are provided. A user equipment (UE) apparatus includes a transceiver and a processor. The transceiver is configured to receive configuration information for channel state information (CSI) reporting including a plurality of precoding codebook parameters. The processor is operably connected to the transceiver, and configured to determine, in response to receipt of the configuration information for the CSI reporting and the configuration information for the plurality of precoding codebook parameters, a first precoding matrix indicator (PMI) and a second PMI, wherein the first PMI includes one or two codebook indices. The transceiver is further configured to transmit the CSI reporting on an uplink channel, the CSI reporting including the determined first and second PMIs.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: December 3, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eko Onggosanusi, Young-Han Nam
  • Patent number: 10498409
    Abstract: A first communication device transmits a plurality of training signals to a second communication device via a communication channel. The first communication device receives feedback generated at the second communication device based on the plurality of training signals. The feedback includes steering matrix information for a plurality of orthogonal frequency division multiplexing (OFDM) tones and (ii) additional phase information corresponding to channel estimates obtained for the plurality of OFDM tone. The first communication device constructs, based on the steering matrix information, a plurality of steering matrices corresponding to the plurality of OFDM tones, and compensates, using the additional phase information, the plurality of steering matrices to reduce phase discontinuities between the OFDM tones. The first communication device steers, using the compensated steering matrices, at least one transmission via the communication channel to the second communication device.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: December 3, 2019
    Assignee: Marvell World Trade Ltd.
    Inventors: Rui Cao, Hongyuan Zhang
  • Patent number: 10484219
    Abstract: A method of wireless communication by a user equipment includes determining an allocation of a set of tones in a symbol for conveying data. The method further includes determining to use m-ary phase shift keying (MPSK) to modulate the data onto a subset of tones of the set of tones. The method further includes modulating the data onto the subset of tones based on a mapping, wherein the mapping maps pairs of data values with a largest Hamming distance from each other to pairs of constellation points with a maximum Euclidean distance from each other.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: November 19, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Xiao feng Wang, Junyi Li, Zhi-Zhong Yu
  • Patent number: 10476710
    Abstract: An equalizer circuit includes a first adder circuit adding an input signal and including an addition terminal and a subtraction terminal; a comparator circuit comparing an output signal of the first adder circuit; a latch circuit latching data output from the comparator circuit; a first digital/analog converter circuit which outputs a first signal corresponding to an absolute value of an equalizing coefficient, when the equalizing coefficient is a positive value; a second digital/analog converter circuit which outputs a second signal corresponding to an absolute value of the equalizing coefficient, when the equalizing coefficient is a negative value; and a switch circuit which switches a connection between a set of an output terminal of the first digital/analog converter circuit, an output terminal of the second digital/analog converter circuit, and a set of the addition terminal and the subtraction terminal, based on the data latched in the latch circuit.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: November 12, 2019
    Assignee: SOCIONEXT INC.
    Inventors: Masahiro Kudo, Daisuke Suzuki
  • Patent number: 10469301
    Abstract: A system for peak-to-average-power ratio (PAPR) reduction of a frequency shifted plurality of digital broadcast signals taking into account the combined signal peaks in order to transmit the signals more efficiently in a single broadcast transmission system. The PAPR algorithm takes into account a rotating constellation phase offset for the shifted signals corresponding to the amount of applied frequency shift. In the case of a dual sideband In-Band-On-Channel (IBOC) signal typically used in conjunction with an FM carrier in the center, the sidebands can be interleaved to create a new IBOC signal definition and take the place of the FM carrier for an all-digital transmission that is backward compatible with IBOC receivers allowing for a gradual migration to all digital broadcasting.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: November 5, 2019
    Assignee: NAUTEL LIMITED
    Inventors: Philipp Schmid, Brian Walker