Patents by Inventor Frank Worrell

Frank Worrell 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).

  • Patent number: 5648733
    Abstract: Bus control circuitry for enabling/disabling the drivers of a bus in an integrated circuit is presented. The bus control circuitry has master control signal logic blocks and output enable blocks. The bus control circuitry enables one and only one bus driver set at a time to avoid bus contention. Furthermore, the bus driver circuits are enabled and disabled with precise timing to avoid even momentary bus contention. Finally, the bus, driver circuits and control circuitry may be tested with serial scanning.
    Type: Grant
    Filed: November 1, 1995
    Date of Patent: July 15, 1997
    Assignee: LSI Logic Corporation
    Inventors: Frank Worrell, Darren Jones