Patents by Inventor Derek Sahota

Derek Sahota 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).

  • System that detects and identifies periodic interference
    Patent number: 8438022
    Abstract: A system improves speech detection or processing by identifying registration signals. The system encodes a limited frequency band by varying the amplitude of a pulse width modulated signal between predefined values. The signal is separated into frequency bins that identify amplitude and phase. The registration signal is measured by comparing a difference in average acoustic power in a plurality of adjacent bins over time.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: May 7, 2013
    Assignee: QNX Software Systems Limited
    Inventors: Mark Fallat, Derek Sahota
  • SYSTEM THAT DETECTS AND IDENTIFIES PERIODIC INTERFERENCE
    Publication number: 20120197639
    Abstract: A system improves speech detection or processing by identifying registration signals. The system encodes a limited frequency band by varying the amplitude of a pulse width modulated signal between predefined values. The signal is separated into frequency bins that identify amplitude and phase. The registration signal is measured by comparing a difference in average acoustic power in a plurality of adjacent bins over time.
    Type: Application
    Filed: April 11, 2012
    Publication date: August 2, 2012
    Inventors: Mark Fallat, Derek Sahota
  • System that detects and identifies periodic interference
    Patent number: 8180634
    Abstract: A system improves speech detection or processing by identifying registration signals. The system encodes a limited frequency band by varying the amplitude of a pulse width modulated signal between predefined values. The signal is separated into frequency bins that identify amplitude and phase. The registration signal is measured by comparing a difference in average acoustic power in a plurality of adjacent bins over time.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: May 15, 2012
    Assignee: QNX Software Systems, Limited
    Inventors: Mark Fallat, Derek Sahota
  • Interference detector
    Publication number: 20090216530
    Abstract: A system improves speech detection or processing by identifying registration signals. The system encodes a limited frequency band by varying the amplitude of a pulse width modulated signal between predefined values. The signal is separated into frequency bins that identify amplitude and phase. The registration signal is measured by comparing a difference in average acoustic power in a plurality of adjacent bins over time.
    Type: Application
    Filed: February 21, 2008
    Publication date: August 27, 2009
    Applicant: QNX Software Systems (Wavemakers). Inc.
    Inventors: Mark Fallat, Derek Sahota