Patents by Inventor Douglas Beard

Douglas Beard 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 analyzing digital circuits
    Publication number: 20050081113
    Abstract: By providing at least two hardware representations of a specified circuit design, an efficient debugging system is provided that allows 100% design visibility at an extremely reduced simulation time owing to a time-shifted operation of the at least two hardware representations. Upon detection of a specified abort state in the leading hardware representation, the corresponding delayed state of the time-shifted hardware representation may be used for a subsequent simulation of only a relevant portion of the test run that has lead to the specified abort state.
    Type: Application
    Filed: June 1, 2004
    Publication date: April 14, 2005
    Inventors: Douglas Beard, Holger Eisenreich, Kai Eichhorn
  • Address translation unit employing a victim TLB
    Patent number: 5752274
    Abstract: An address translation unit is disclosed employing a direct-mapped translation lookaside buffer and a relatively small, associative victim translation lookaside buffer for translating linear addresses to physical addresses expediently and avoiding thrashing, without requiring large amounts of hardware and space.
    Type: Grant
    Filed: November 8, 1994
    Date of Patent: May 12, 1998
    Assignee: Cyrix Corporation
    Inventors: Raul A. Garibay, Jr., Marc A. Quattromani, Douglas Beard