Patents by Inventor Keith Hall Erskine

Keith Hall Erskine 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 permuting code sequences and initial context of code sequences for improved electrical verification
    Patent number: 6704904
    Abstract: Multiple verification cases consisting of code sequence and initial context, and suitable for electrical verification testing of a device, are generated from a single verification case by permuting, or changing, the code sequence, by either permuting the initial context of the code sequence or permuting the code sequence itself. The code sequence is an array of computer instructions to be executed by a computer and the initial context of the code sequence refers to the environment in which the code sequence is to be run.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: March 9, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Keith Hall Erskine
  • Method and apparatus for improving electrical verification throughput via comparison of operating-point differentiated test results
    Patent number: 6564162
    Abstract: The operating-point differentiated test results are obtained by running a code sequence on the device at a first operating point to generate predicted results and then running the same code sequence on the device at a second operating point defined by changing an electrical parameter of the first operating point to generate actual results. Any differences that might exist between the predicted and actual results are due to the changed operating point of the device.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: May 13, 2003
    Assignee: Hewlett-Packard Company
    Inventor: Keith Hall Erskine