Patents by Inventor William E. Lawton

William E. Lawton 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: 8175049
    Abstract: A method and apparatus for reference transport channel (TrCH) selection includes tracking characteristics on each of a TrCH. Whether or not any TrCHs meet a predetermined criteria is determined. A reference TrCH is selected based upon the determination of TrCHs that meet the predetermined criteria.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: May 8, 2012
    Assignee: InterDigital Technology Corporation
    Inventors: Gregory S. Sternberg, Matthew G. Puzio, William E. Lawton
  • Patent number: 8107393
    Abstract: A method and apparatus for estimating a signal-to-interference ratio (SIR) are disclosed. A received signal includes signal energy on multiple basis functions. Desired signal energy in the received signal is transformed onto a first basis function with constant polarity. The desired signal energy is estimated by coherently averaging signal energy on the first basis function. A noise power is estimated by averaging signal energy on each basis function other than the first basis function and accumulating the averaged signal energy from the basis function other than the first basis function and scaling the accumulated signal energy to account for a noise estimate from the first basis function. An SIR is estimated by dividing the desired signal energy by the noise power.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: January 31, 2012
    Assignee: InterDigital Technology Corporation
    Inventors: Kiran K. Vanganuru, Gregory S. Sternberg, William E. Lawton
  • Patent number: 8095168
    Abstract: A method and apparatus for performing closed loop transmit power control of a fractional dedicated physical channel (F-DPCH) are disclosed. Transmit power control (TPC) symbols on an F-DPCH and common pilot channel (CPICH) symbols are received. A short term signal power estimate is calculated using the TPC symbols, and a short term noise power estimate is calculated using the CPICH symbols. A short term signal-to-interference ratio (SIR) on the F-DPCH is calculated. A long term signal power estimate and a long term noise power estimate are calculated using the TPC symbols. A long term SIR is calculated and compared to a TPC quality target. An SIR target is adjusted based on comparison of the long term SIR to the TPC quality target. The short term SIR is compared to the SIR target and a TPC command is generated based on comparison of the short term SIR to the SIR target.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: January 10, 2012
    Assignee: InterDigital Technology Corporation
    Inventors: Kiran K. Vanganuru, William E. Lawton, Gregory S. Sternberg
  • Publication number: 20090312048
    Abstract: A method and apparatus for performing closed loop transmit power control of a fractional dedicated physical channel (F-DPCH) are disclosed. Transmit power control (TPC) symbols on an F-DPCH and common pilot channel (CPICH) symbols are received. A short term signal power estimate is calculated using the TPC symbols, and a short term noise power estimate is calculated using the CPICH symbols. A short term signal-to-interference ratio (SIR) on the F-DPCH is calculated. A long term signal power estimate and a long term noise power estimate are calculated using the TPC symbols. A long term SIR is calculated and compared to a TPC quality target. An SIR target is adjusted based on comparison of the long term SIR to the TPC quality target. The short term SIR is compared to the SIR target and a TPC command is generated based on comparison of the short term SIR to the SIR target.
    Type: Application
    Filed: February 25, 2009
    Publication date: December 17, 2009
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Kiran K. Vanganuru, William E. Lawton, Gregory S. Sternberg
  • Publication number: 20090213748
    Abstract: A method and apparatus for estimating a signal-to-interference ratio (SIR) are disclosed. A received signal includes signal energy on multiple basis functions. Desired signal energy in the received signal is transformed onto a first basis function with constant polarity. The desired signal energy is estimated by coherently averaging signal energy on the first basis function. A noise power is estimated by averaging signal energy on each basis function other than the first basis function and accumulating the averaged signal energy from the basis function other than the first basis function and scaling the accumulated signal energy to account for a noise estimate from the first basis function. An SIR is estimated by dividing the desired signal energy by the noise power.
    Type: Application
    Filed: February 26, 2009
    Publication date: August 27, 2009
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Kiran K. Vanganuru, Gregory S. Sternberg, William E. Lawton
  • Publication number: 20090185530
    Abstract: A method and apparatus for reference transport channel (TrCH) selection includes tracking characteristics on each of a TrCH. Whether or not any TrCHs meet a predetermined criteria is determined. A reference TrCH is selected based upon the determination of TrCHs that meet the predetermined criteria.
    Type: Application
    Filed: January 16, 2009
    Publication date: July 23, 2009
    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION
    Inventors: Gregory S. Sternberg, Matthew G. Puzio, William E. Lawton
  • Patent number: 7529372
    Abstract: A system and method is described for reliably transferring a node in a communications network from one Logical Network to another Logical Network. The system and method is reliable and robust with respect to potentially varying implementations of host devices in the communications network, and is compatible with other network management operations as specified in HomePlug Specifications.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: May 5, 2009
    Assignee: Intellon Corporation
    Inventors: William E. Lawton, Frank Aiello, Stan Kostoff
  • Publication number: 20040131189
    Abstract: A system and method is described for reliably transferring a node in a communications network from one Logical Network to another Logical Network. The system and method is reliable and robust with respect to potentially varying implementations of host devices in the communications network, and is compatible with other network management operations as specified in HomePlug Specifications.
    Type: Application
    Filed: September 23, 2003
    Publication date: July 8, 2004
    Applicant: Intellon Corporation
    Inventors: William E. Lawton, Frank Aiello, Stanley J. Kostoff