Patents by Inventor Andrew R. Percey

Andrew R. Percey 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).

  • Method and apparatus for controlling supply voltage levels for integrated circuits
    Patent number: 6737925
    Abstract: Method and apparatus for providing a controlled voltage to an integrated circuit is described. A first frequency value indicative of a first voltage is compared to a second frequency value indicative of a second voltage. The second frequency value is adjusted by the second voltage until the second frequency value is within a range of the first frequency value. Additionally, the second voltage may be adjusted to maintain the second frequency value within the range.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: May 18, 2004
    Assignee: Xilinx, Inc.
    Inventors: John D. Logue, Andrew R. Percey, Austin H. Lesea