Patents by Inventor James D. Hrabliuk

James D. Hrabliuk 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).

  • Wide dynamic range sensor signal processing method & circuitry for analog and digital information signals
    Patent number: 7233746
    Abstract: A sensor provides an analog sensor output signal that is first converted by a A/D converter, followed by a digital signal processor having a digital signal output that is converted to an analog signal by way of a D/A converter so as to provide an analog information output signal indicative of a parameter quantity intended to be sensed. An analog dither signal and/or a digital dither signal is provided for modulating the A/D converter input signal and/or D/A converter input signal, respectively, separately, or in combination, to enhance dynamic range accuracy of the resultant analog information output signal representative of the quantity of the parameter intended to be sensed.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: June 19, 2007
    Inventors: James N. Blake, James D. Hrabliuk, Farnoosh Rahmatian
  • Wide dynamic range sensor signal processing method & circuitry for analog and digital information signals
    Publication number: 20030185576
    Abstract: A sensor provides an analog sensor output signal that is first converted by a A/D converter, followed by a digital signal processor having a digital signal output that is converted to an analog signal by way of a D/A converter so as to provide an analog information output signal indicative of a parameter quantity intended to be sensed. An analog dither signal and/or a digital dither signal is provided for modulating the A/D converter input signal and/or D/A converter input signal, respectively, separately, or in combination, to enhance dynamic range accuracy of the resultant analog information output signal representative of the quantity of the parameter intended to be sensed.
    Type: Application
    Filed: January 29, 2003
    Publication date: October 2, 2003
    Inventors: James N. Blake, James D. Hrabliuk, Farnoosh Rahmatian