Patents by Inventor Mark R. Trace

Mark R. Trace 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 for adjusting an input voltage to a switching power supply while keeping the output voltage constant
    Patent number: 6816978
    Abstract: A method and related structure for reducing the harmonic distortion on an input signal line of a switching power supply accomplished by a first or upstream power supply adjusting the input voltage such that the duty cycle of conduction or switching signals applied to each phase of a switching power supply have no significant overlap or gap.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: November 9, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: George A. Kaminski, George F. Squibb, Mark R. Trace
  • Selective dual input low dropout linear regulator
    Patent number: 6198262
    Abstract: A circuit and method for controlling current drawn from two different voltage sources while maintaining regulation of a fixed output voltage during controlled switching of different sleep states required by the microprocessor and system board.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: March 6, 2001
    Assignee: Compaq Computer Corporation
    Inventors: George F. Squibb, Mark R. Trace