Patents by Inventor Judith M. Wang

Judith M. Wang 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).

  • Method and apparatus for identifying co-channel interference
    Patent number: 9537689
    Abstract: Methods and apparatuses identifying a co-channel interference signal in communications systems are disclosed. An exemplary method comprises generating an interference signal by subtracting a reconstructed desired signal from an at least partially demodulated composite signal, and generating synchronization statistics of interference signal using different scrambling codes. The interference signal is identified as the signal associated with the scrambling code that was used to generate an interference signal having a desired synchronization statistic.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: January 3, 2017
    Assignee: The DirecTV Group, Inc.
    Inventors: Guangcai Zhou, Ernest C. Chen, Joseph Santoru, Judith M. Wang
  • METHOD AND APPARATUS FOR IDENTIFYING CO-CHANNEL INTERFERENCE
    Publication number: 20120257697
    Abstract: Methods and apparatuses identifying a co-channel interference signal in communications systems are disclosed. An exemplary method comprises generating an interference signal by subtracting a reconstructed desired signal from an at least partially demodulated composite signal, and generating synchronization statistics of interference signal using different scrambling codes. The interference signal is identified as the signal associated with the scrambling code that was used to generate an interference signal having a desired synchronization statistic.
    Type: Application
    Filed: June 20, 2012
    Publication date: October 11, 2012
    Applicant: The DIRECTV Group, Inc.
    Inventors: Guangcai Zhou, Ernest C. Chen, Joseph Santoru, Judith M. Wang
  • Method and apparatus for identifying co-channel interference
    Patent number: 8213553
    Abstract: Methods and apparatuses identifying a co-channel interference signal in communications systems are disclosed. An exemplary method comprises generating an interference signal by subtracting a reconstructed desired signal from an at least partially demodulated composite signal, and generating synchronization statistics of interference signal using different scrambling codes. The interference signal is identified as the signal associated with the scrambling code that was used to generate an interference signal having a desired synchronization statistic.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: July 3, 2012
    Assignee: The DIRECTV Group, Inc.
    Inventors: Guangcai Zhou, Ernest C. Chen, Joseph Santoru, Judith M. Wang
  • METHOD AND APPARATUS FOR IDENTIFYING CO-CHANNEL INTERFERENCE
    Publication number: 20080181291
    Abstract: Methods and apparatuses identifying a co-channel interference signal in communications systems are disclosed. An exemplary method comprises generating an interference signal by subtracting a reconstructed desired signal from an at least partially demodulated composite signal, and generating synchronization statistics of interference signal using different scrambling codes. The interference signal is identified as the signal associated with the scrambling code that was used to generate an interference signal having a desired synchronization statistic.
    Type: Application
    Filed: April 4, 2008
    Publication date: July 31, 2008
    Applicant: THE DIRECTV GROUP, INC.
    Inventors: Guangcai Zhou, Ernest C. Chen, Joseph Santoru, Judith M. Wang