Patents by Inventor Steven D. McIntyre

Steven D. McIntyre 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).

  • High speed mixed radix adder
    Patent number: 5285406
    Abstract: A high speed adder suitable for incorporation into electronic digital processing circuits includes at least one first independent adder assuming a carry in of zero (0); at least one second independent adder assuming a carry in of one (1); carry prediction logic circuitry for producing carries for the first and second independent adders, which carry prediction logic circuitry is operable simultaneously with the first and second independent adders; and a final mux for producing a correct result based upon outputs received from the first and second independent adders and the carry prediction logic circuitry.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: February 8, 1994
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Thomas W. Lynch, Steven D. McIntyre
  • Radix 4 carry lookahead tree and redundant cell therefor
    Patent number: 5095458
    Abstract: A high radix carry lookahead tree includes a plurality of tree nodes, each of the tree nodes including a carrying chain or a variation thereof, and/or a NAND gate chain or a variation thereof; and each tree node may have three or more children.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: March 10, 1992
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Thomas W. Lynch, Steven D. McIntyre