Patents by Inventor Jonathan Humphrey Saxman

Jonathan Humphrey Saxman 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).

  • Windowing mechanism for reducing pessimism in cross-talk analysis of digital chips
    Patent number: 6510540
    Abstract: This invention reduces pessimism in cross talk analysis of digital circuits by combining only the peak noises from aggressor nets that can switch simultaneously during the time interval when the downstream receiving latch can sample the errant data. This is done by, first, determining aggressor switching windows and victim sensitivity windows. These windows are then used to determine which combination of noise sources can temporally align so as to cause the greatest noise within the victim sensitivity window.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: January 21, 2003
    Assignee: International Business Machines Corporation
    Inventors: Byron Lee Krauter, Sharad Mehrotra, Jonathan Humphrey Saxman, Paul Gerard Villarrubia, David J. Widiger