Patents by Inventor Richard Gale Beale

Richard Gale Beale 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 and method of changing a PWM power spectrum
    Patent number: 7965214
    Abstract: In a particular embodiment, a circuit device includes a pulse edge control circuit to receive at least one pulse-width modulated (PWM) signal from a PWM source. The pulse edge control circuit is adapted to selectively apply a phase shift operation to the at least one PWM signal at integer submultiples of a frame repetition rate to produce at least one modulated PWM signal having a changed power spectrum. The pulse edge control circuit provides the at least one modulated PWM signal to at least one output of the pulse edge control circuit.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: June 21, 2011
    Assignee: Silicon Laboratories Inc.
    Inventors: John M. Khoury, Richard Gale Beale
  • System and Method of Changing a PWM Power Spectrum
    Publication number: 20100296671
    Abstract: In a particular embodiment, a circuit device includes a pulse edge control circuit to receive at least one pulse-width modulated (PWM) signal from a PWM source. The pulse edge control circuit is adapted to selectively apply a phase shift operation to the at least one PWM signal at integer submultiples of a frame repetition rate to produce at least one modulated PWM signal having a changed power spectrum. The pulse edge control circuit provides the at least one modulated PWM signal to at least one output of the pulse edge control circuit.
    Type: Application
    Filed: July 30, 2010
    Publication date: November 25, 2010
    Applicant: SILICON LABORATORIES, INC.
    Inventors: John M. Khoury, Richard Gale Beale
  • System and Method of Shaping a Power Spectrum in PWM Amplifiers
    Publication number: 20100207699
    Abstract: In a particular embodiment, a circuit device is disclosed that includes a data generator adapted to output a random pulse sequence having a particular spectral shape. The circuit device further includes a pulse edge control circuit to selectively apply a carrier suppression operation to at least one pulse-width modulated (PWM) signal in response to the random pulse sequence to produce at least one modulated PWM output signal. The spectral energy associated with a PWM carrier of the modulated PWM output signal at a carrier frequency and associated harmonics is changed such that the modulated PWM output signal has a spectral shape defined by the particular spectral shape.
    Type: Application
    Filed: April 26, 2010
    Publication date: August 19, 2010
    Applicant: SILICON LABORATORIES, INC.
    Inventors: Jeffrey D. Alderson, John M. Khoury, Richard Gale Beale
  • System and Method of Changing a PWM Power Spectrum
    Publication number: 20100171540
    Abstract: In a particular embodiment, a circuit device includes a pulse edge control circuit to receive at least one pulse-width modulated (PWM) signal from a PWM source. The pulse edge control circuit is adapted to selectively invert and swap the at least one PWM signal with a logic-inverted duty-cycle complement of the at least one PWM signal at discrete time intervals to produce at least one modulated PWM signal having a changed power spectrum. The pulse edge control circuit provides the at least one modulated PWM signal to at least one output of the pulse edge control circuit.
    Type: Application
    Filed: March 22, 2010
    Publication date: July 8, 2010
    Applicant: SILICON LABORATORIES, INC.
    Inventors: Richard Gale Beale, John M. Khoury
  • System and method of shaping a power spectrum in PWM amplifiers
    Patent number: 7724105
    Abstract: In a particular embodiment, a circuit device is disclosed that includes a data generator adapted to output a random pulse sequence having a particular spectral shape. The circuit device further includes a pulse edge control circuit to selectively apply a carrier suppression operation to at least one pulse-width modulated (PWM) signal in response to the random pulse sequence to produce at least one modulated PWM output signal. The spectral energy associated with a PWM carrier of the modulated PWM output signal at a carrier frequency and associated harmonics is changed such that the modulated PWM output signal has a spectral shape defined by the particular spectral shape.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: May 25, 2010
    Assignee: Silicon Laboratories, Inc.
    Inventors: Jeffrey D. Alderson, John M. Khoury, Richard Gale Beale
  • SYSTEM AND METHOD OF SHAPING A POWER SPECTRUM IN PWM AMPLIFIERS
    Publication number: 20090243745
    Abstract: In a particular embodiment, a circuit device is disclosed that includes a data generator adapted to output a random pulse sequence having a particular spectral shape. The circuit device further includes a pulse edge control circuit to selectively apply a carrier suppression operation to at least one pulse-width modulated (PWM) signal in response to the random pulse sequence to produce at least one modulated PWM output signal. The spectral energy associated with a PWM carrier of the modulated PWM output signal at a carrier frequency and associated harmonics is changed such that the modulated PWM output signal has a spectral shape defined by the particular spectral shape.
    Type: Application
    Filed: September 11, 2008
    Publication date: October 1, 2009
    Applicant: Silicon Laboratories Inc.
    Inventors: Jeffrey D. Alderson, John M. Khoury, Richard Gale Beale
  • SYSTEM AND METHOD OF CHANGING A PWM POWER SPECTRUM
    Publication number: 20090243688
    Abstract: In a particular embodiment, a circuit device includes a pulse edge control circuit to receive at least one pulse-width modulated (PWM) signal from a PWM source. The pulse edge control circuit is adapted to selectively apply a phase shift operation to the at least one PWM signal at integer submultiples of a frame repetition rate to produce at least one modulated PWM signal having a changed power spectrum. The pulse edge control circuit provides the at least one modulated PWM signal to at least one output of the pulse edge control circuit.
    Type: Application
    Filed: August 26, 2008
    Publication date: October 1, 2009
    Applicant: Silicon Laboratories Inc.
    Inventors: John M. Khoury, Richard Gale Beale
  • SYSTEM AND METHOD OF CHANGING A PWM POWER SPECTRUM
    Publication number: 20090243744
    Abstract: In a particular embodiment, a circuit device includes a pulse edge control circuit to receive at least one pulse-width modulated (PWM) signal from a PWM source. The pulse edge control circuit is adapted to selectively invert and swap the at least one PWM signal with a logic-inverted duty-cycle complement of the at least one PWM signal at discrete time intervals to produce at least one modulated PWM signal having a changed power spectrum. The pulse edge control circuit provides the at least one modulated PWM signal to at least one output of the pulse edge control circuit.
    Type: Application
    Filed: August 7, 2008
    Publication date: October 1, 2009
    Applicant: Silicon Laboratories Inc.
    Inventors: Richard Gale Beale, John M. Khoury