Patents by Inventor Paul K. French

Paul K. French 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).

  • Apparatus and method for pseudorandom rare event injection to improve verification quality
    Publication number: 20040034820
    Abstract: A rare-event injector for generating events in an integrated circuit has circuitry for generating a pseudorandom sequence of events. This pseudorandom sequence of events is injected into circuitry of the integrated circuit to stimulate error handling and recovery circuitry of the integrated circuit.
    Type: Application
    Filed: August 15, 2002
    Publication date: February 19, 2004
    Inventors: Donald C. Soltis,, Don Douglas Josephson, Paul K. French, Russell C. Brockmann, Kevin David Safford, Jeremy Petsinger, Karl P. Brummel
  • Precise translation lookaside buffer error detection and shutdown circuit
    Patent number: 5619672
    Abstract: A precise TLB error detection and shutdown circuit that detects for two or more matching tag entries in a TLB by providing an array of n units of error detection circuit unit <i>, wherein each error detection unit <i> comprises a first input B<i> coupled to an associated bit <i> of an input n-bit tag compare indicator. A second input A<i> is coupled to an output bit of an immediately preceding error detection unit <i-1>. A third input C<i> is coupled to a output bit of a immediately preceding error detection unit <i-1>. Each error detection unit <i> generates a first output bit X<i>, the output indicator X<i> indicating a result of detecting two or more matching tag entries, and a second output indicator Y<i>, the output indicator Y<i> indicating a result of detecting one or more matching tag entries.
    Type: Grant
    Filed: May 17, 1994
    Date of Patent: April 8, 1997
    Assignee: Silicon Graphics, Inc.
    Inventors: Yue-Hong Sutu, Paul K. French