Patents by Inventor Lewis Counts

Lewis Counts 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).

  • Dynamic improvement in RMS to DC converters
    Patent number: 8698544
    Abstract: A circuit for providing a DC output equal to the RMS value of a time-varying input signal, the circuit including: (i) an RMS-to-DC converter for producing the DC output and (ii) a high-order low-pass filter comprising at least first and second low-pass filters connected in series to cooperatively reduce at least one of ripple in the DC output, ripple in an denominator feedback loop, or DC error in the DC output.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: April 15, 2014
    Assignee: Analog Devices, Inc.
    Inventors: Derek Bowers, Lewis Counts, James G. Staley
  • DYNAMIC IMPROVEMENT IN RMS TO DC CONVERTERS
    Publication number: 20130234775
    Abstract: A circuit for providing a DC output equal to the RMS value of a time-varying input signal, the circuit including: (i) an RMS-to-DC converter for producing the DC output and (ii) a high-order low-pass filter comprising at least first and second low-pass filters connected in series to cooperatively reduce at least one of ripple in the DC output, ripple in an denominator feedback loop, or DC error in the DC output.
    Type: Application
    Filed: March 12, 2012
    Publication date: September 12, 2013
    Inventors: Derek Bowers, Lewis Counts, James G. Staley
  • Circuit and method of providing thermal compensation for a transistor to minimize offset voltage due to self-heating of associated devices
    Patent number: 5424510
    Abstract: A circuit for varying the temperature of a first bipolar transistor in order to thermally compensate for self-heating effects of an associated device in a common signal path with the first transistor, the first transistor being configured within an isolated collector region. The circuit includes a second bipolar transistor provided within the isolated collector region and thermally coupled to the first transistor, the second transistor operable for providing heat to the first transistor to alter the temperature to a predetermined level, thus changing the operational voltage characteristics of the first transistor so as to minimize shifts in offset voltage.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: June 13, 1995
    Assignee: Analog Devices Inc.
    Inventors: Alex Gusinov, A. Paul Brokaw, Douglas W. Babcock, Lewis Counts, Lawrence DeVito, Robert A. Duris, Scott Wurcer