Patents by Inventor Gary A. Anwyl

Gary A. Anwyl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10225122
    Abstract: Dual sub-carrier modulation (DCM) is introduced in high efficiency (HE) WLAN. DCM is a solution to deal with narrow band interferences and for range extension. DCM can introduce frequency diversity into OFDM systems by transmitting the same information on two subcarriers separated in frequency. If DCM is applied, then the transmitter modulates the same encoded bits onto two separated subcarriers with the same or different constellation mapping schemes. DCM suffers from a high peak-to-average power ratio (PAPR). In accordance with one novel aspect, a method of transmitting and encoding a HE PPDU frame with binary phase shift keying (BPSK) DCM and lower PAPR is proposed.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: March 5, 2019
    Assignee: MEDIATEK INC.
    Inventors: Gary A. Anwyl, Jianhan Liu, Tianyu Wu, Thomas Edward Pare, Jr.
  • Patent number: 10200228
    Abstract: A method of interleaver design for dual carrier modulation (DCM) is proposed in a wireless network. For HE PPDU transmission with DCM, information bits are first encoded by a BCC encoder. The BCC encoded bit streams are then interleaved by a BCC interleaver. More specifically, the BCC interleaved bits are repeated on two halves of a given resource unit (RU). The BCC interleaver parameters are defined based on half of the total number of the data tones of the RU if DCM is applied. The BCC interleaved bits are then modulated and mapped to two halves of the RU by a DCM constellation mapper.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: February 5, 2019
    Assignee: MEDIATEK INC.
    Inventors: Tianyu Wu, Jianhan Liu, Gary A. Anwyl, Thomas Edward Pare, Jr.
  • Publication number: 20170230220
    Abstract: Dual sub-carrier modulation (DCM) is introduced in high efficiency (HE) WLAN. DCM is a solution to deal with narrow band interferences and for range extension. DCM can introduce frequency diversity into OFDM systems by transmitting the same information on two subcarriers separated in frequency. If DCM is applied, then the transmitter modulates the same encoded bits onto two separated subcarriers with the same or different constellation mapping schemes. DCM suffers from a high peak-to-average power ratio (PAPR). In accordance with one novel aspect, a method of transmitting and encoding a HE PPDU frame with binary phase shift keying (BPSK) DCM and lower PAPR is proposed.
    Type: Application
    Filed: February 2, 2017
    Publication date: August 10, 2017
    Inventors: Gary A. Anwyl, Jianhan Liu, Tianyu Wu, Thomas Edward PARE, JR.
  • Publication number: 20170180177
    Abstract: A method of interleaver design for dual carrier modulation (DCM) is proposed in a wireless network. For HE PPDU transmission with DCM, information bits are first encoded by a BCC encoder. The BCC encoded bit streams are then interleaved by a BCC interleaver. More specifically, the BCC interleaved bits are repeated on two halves of a given resource unit (RU). The BCC interleaver parameters are defined based on half of the total number of the data tones of the RU if DCM is applied. The BCC interleaved bits are then modulated and mapped to two halves of the RU by a DCM constellation mapper.
    Type: Application
    Filed: December 16, 2016
    Publication date: June 22, 2017
    Inventors: Tianyu Wu, Jianhan Liu, Gary A. Anwyl, Thomas Edward PARE, JR.
  • Patent number: 9590745
    Abstract: A method operative on a wireless transceiver device for performing beamforming calibration includes: measuring at least one joint signal response of at least one circuit loopback between a transmitter of the wireless transceiver device and a receiver of the wireless transceiver device to determine the measurement result; and calibrating joint signal path mismatch according to the measurement result for s multiple antenna beamforming system operating on the wireless transceiver device.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: March 7, 2017
    Assignee: MEDIATEK INC.
    Inventors: Yen-Lin Huang, Hsiang-Hui Chang, Hung-Tao Hsieh, Gary A. Anwyl, Thomas Edward Pare, Jr.
  • Publication number: 20160149652
    Abstract: A method operative on a wireless transceiver device for performing beamforming calibration includes: measuring at least one joint signal response of at least one circuit loopback between a transmitter of the wireless transceiver device and a receiver of the wireless transceiver device to determine the measurement result; and calibrating joint signal path mismatch according to the measurement result for s multiple antenna beamforming system operating on the wireless transceiver device.
    Type: Application
    Filed: October 27, 2015
    Publication date: May 26, 2016
    Inventors: Yen-Lin Huang, Hsiang-Hui Chang, Hung-Tao Hsieh, Gary A. Anwyl, Thomas Edward Pare, JR.
  • Publication number: 20150271787
    Abstract: A method and system for actively selecting antenna sets for a client are disclosed. In a first aspect, the method comprises sending a first channel packet with a selected MCS rate from a transmitter to a receiver and determining the first channel packet is received by the receiver when the transmitter receives a second channel packet corresponding to the received first channel packet from the receiver. The method includes storing the selected MCS rate. The method includes comparing the selected MCS rate to previously stored selected MCS rate of another antenna set to select one of the antenna set and the another antenna set. In a second aspect, the system comprises a processor and a memory device coupled to the processor, wherein the memory device stores an application which, when executed by the processor, causes the processor to carry out the steps of the method.
    Type: Application
    Filed: March 25, 2015
    Publication date: September 24, 2015
    Inventors: John WONG, Thomas E. PARE, JR., Gary A. ANWYL, Kiran ULN, Chih-Liang CHANG
  • Patent number: 8868124
    Abstract: A method, system, and computer program product for beamforming in a wireless communication system is disclosed. The method, system, and computer program product comprise a plurality of transmit antennas for a transmitter and at least one receive antenna for a receiver. The method, system, and computer program product comprise: initiating beamforming on a communication channel between the plurality of transmit antennas and the at least one receive antenna. The communication channel includes two data streams. A received signal to noise ratio (SNR) on one of the two data streams is weaker than a received SNR of the other data stream. The method, system, and computer program product include reallocating the transmit power between the stronger stream and the weaker stream to provide improved channel performance.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: October 21, 2014
    Assignee: Mediatek Singapore Pte. Ltd.
    Inventors: Kiran Uln, Gary Anwyl, Thomas E. Pare, Jr.
  • Publication number: 20140064390
    Abstract: A method, system, and computer program product for beamforming in a wireless communication system is disclosed. The method, system, and computer program product comprise a plurality of transmit antennas for a transmitter and at least one receive antenna for a receiver. The method, system, and computer program product comprise: initiating beamforming on a communication channel between the plurality of transmit antennas and the at least one receive antenna. The communication channel includes two data streams. A received signal to noise ratio (SNR) on one of the two data streams is weaker than a received SNR of the other data stream. The method, system, and computer program product include reallocating the transmit power between the stronger stream and the weaker stream to provide improved channel performance.
    Type: Application
    Filed: August 30, 2012
    Publication date: March 6, 2014
    Applicant: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: Kiran ULN, Gary ANWYL, Thomas E. PARE, JR.
  • Publication number: 20130243064
    Abstract: A method and system for actively selecting antenna sets for a client are disclosed. In a first aspect, the method comprises sending a first channel packet from a transmitter to a receiver and sending a second channel packet corresponding to the received first channel packet from the receiver to the transmitter. The method includes collecting statistics of an antenna set related to the sending of the first and the second channel packets. The method includes comparing the collected statistics to previously collected statistics of another antenna set to select one of the antenna set and the another antenna set. In a second aspect, the system comprises a processor and a memory device coupled to the processor, wherein the memory device stores an application which, when executed by the processor, causes the processor to carry out the steps of the method.
    Type: Application
    Filed: March 19, 2012
    Publication date: September 19, 2013
    Applicant: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: John WONG, Thomas E. PARE, JR., Gary A. ANWYL, Kiran ULN, Chih-Liang CHANG
  • Publication number: 20120009961
    Abstract: Varying embodiments of the present invention describes a method and apparatus for beamforming in a wireless communication system. A first embodiment is a method for beamforming in a wireless communication system, the system comprising a transmitter and a receiver. The method comprises initiating beamforming on a communication channel between the transmitter and the receiver wherein the communication channel comprises at least two transmit chains, controlling the beamforming by mapping the data stream(s) to the at least two transmit chains and controlling the scaling of the at least two transmit chains within a transmit power constraint.
    Type: Application
    Filed: July 8, 2010
    Publication date: January 12, 2012
    Applicant: Ralink Technology (Singapore) Corporation PTE. LTD.
    Inventors: Kiran ULN, Thomas E. PARE, JR., Gary ANWYL, Yung-Szu TU, Chun-Hsien WEN, Lihua WENG, Henry LIN
  • Publication number: 20030065830
    Abstract: A computer automatically measures one or more parameters (also called “observable parameters”; examples include number being dialed and line probing result), and the computer uses the measurements to identify a set of values of parameters (also called “controllable parameters”; examples include equalizer coefficients, echo canceller coefficients, and disabling of V.8bis/Kflex) from non-volatile memory, for use in a current connection. The values of controllable parameters in each set may have been saved in non-volatile memory while operating the modem in a previous connection, or may be default values set by the factory, for example. Use of a previously saved set of controllable parameter values to operate a modem during a current connection, saves time otherwise required to independently generate a set of values each time the modem is operated and increases modem performance.
    Type: Application
    Filed: January 31, 2002
    Publication date: April 3, 2003
    Inventors: Chien-Cheng Tung, Thomas Paul, Zhengjin Shu, Gary A. Anwyl, Derek Obata
  • Patent number: 4980897
    Abstract: A multi-channel trellis encoder/decoder is disclosed for use with multi-channel data transmission systems. For each data transmission symbol interval, trellis encoding is applied across all available channels, and for each data reception symbol interval trellis decoding is applied across all available channels. In comparision with systems employing independent trellis encoding along each available channel, the present invention reduces data throughput delays by roughly an order of magnitude, and reduces implementation complexity by roughly a factor equal to the number of transmission channels. Further, the multi-channel trellis encoder will permit different data transmission rates as well as permitting variations in signal power and/or noise power from channel to channel.
    Type: Grant
    Filed: August 12, 1988
    Date of Patent: December 25, 1990
    Assignee: Telebit Corporation
    Inventors: Dwight W. Decker, Gary A. Anwyl, Mark D. Dankberg, Mark J. Miller, Stephen R. Hart, Kristi A. Jaska