Patents by Inventor John K. Thomas

John K. Thomas 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).

  • Rake receiver for spread spectrum signal demodulation
    Patent number: 6430216
    Abstract: The architecture of the present invention is premised upon an algorithm involving integration of oblique correlators and RAKE filtering to null interference from other spread spectrum signals. The oblique correlator is, of course, based on the non-orthogonal projections that are optimum for nulling structured signals such as spread spectrum signals. RAKE filtering is used to rapidly steer the beam of the multi-antenna system and to mitigate the effects of multipath.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: August 6, 2002
    Assignee: Data Fusion Corporation
    Inventors: Wolfgang Kober, John K. Thomas, Marvin L. Vis
  • Rake erceiver for spread spectrum signal demodulation
    Publication number: 20020090025
    Abstract: The architecture of the present invention is premised upon an algorithm involving integration of oblique correlators and RAKE filtering to null interference from other spread spectrum signals. The oblique correlator is based on the non-orthogonal projections that are optimum for nulling structured signals such as spread spectrum signals. In one configuration, space spanned by a first signal associated with a first emitter is orthogonal to an interference space associated with one or more signals of one or more other emitters. RAKE filtering is used to rapidly steer the beam of the multi-antenna system and to mitigate the effects of multipath.
    Type: Application
    Filed: January 18, 2001
    Publication date: July 11, 2002
    Inventors: Wolfgang Kober, John K. Thomas, Marvin L. Vis
  • Method and apparatus for acquiring wide-band pseudorandom noise encoded waveforms
    Patent number: 6380879
    Abstract: The method and apparatus of the present invention is directed to architectures for signal processing, such as for performing analog-to-digital and digital-to-analog conversions, in which the source signal is decomposed into subband signals by an analysis filter, processed, and the processed subband signals combined to form a reconstructed signal that is representative of the source signal.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: April 30, 2002
    Assignee: Data Fusion Corporation
    Inventors: Wolfgang Kober, John K. Thomas
  • Method and apparatus for acquiring wide-band pseudorandom noise encoded waveforms
    Patent number: 6362760
    Abstract: The method and apparatus of the present invention is directed to architectures for signal processing, such as for performing analog-to-digital and digital-to-analog conversions, in which the source signal is decomposed into subband signals by an analysis filter, processed, and the processed subband signals combined to form a reconstructed signal that is representative of the source signal.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: March 26, 2002
    Assignee: Data Fusion Corporation
    Inventors: Wolfgang Kober, John K. Thomas
  • Method and apparatus for acquiring wide-band pseudorandom noise encoded waveforms
    Patent number: 6252535
    Abstract: The method and apparatus of the present invention is directed to architectures for signal processing, such as for performing analog-to-digital and digital-to-analog conversions, in which the source signal is decomposed into subband signals by an analysis filter, processed, and the processed subband signals combined to form a reconstructed signal that is representative of the source signal.
    Type: Grant
    Filed: August 20, 1998
    Date of Patent: June 26, 2001
    Assignee: Data Fusion Corporation
    Inventors: Wolfgang Kober, John K. Thomas
  • Method and apparatus for acquiring wide-band pseudorandom noise encoded waveforms
    Publication number: 20010000660
    Abstract: The method and apparatus of the present invention is directed to architectures for signal processing, such as for performing analog-to-digital and digital-to-analog conversions, in which the source signal is decomposed into subband signals by an analysis filter, processed, and the processed subband signals combined to form a reconstructed signal that is representative of the source signal.
    Type: Application
    Filed: December 4, 2000
    Publication date: May 3, 2001
    Applicant: DATA FUSION CORPORATION
    Inventors: Wolfgang Kober, John K. Thomas