Patents by Inventor Cecil D. MacGregor

Cecil D. MacGregor 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).

  • Arbiter with programmable dynamic request prioritization
    Patent number: 5303382
    Abstract: Methodology and circuitry for providing adaptable dynamic prioritization of a plurality of requestors for a shared resource with a plurality of prioritization commands selected according to the winning request of each arbitrage operation.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: April 12, 1994
    Assignee: Digital Equipment Corporation
    Inventors: Bruce D. Buch, Cecil D. MacGregor
  • Memory controller for enqueuing/dequeuing process
    Patent number: 5239634
    Abstract: A memory controller manipulated enqueuing and dequeuing process for singly linked queues in a memory system in response to single exclusive-access write and read commands from any CPU in the associated data processing system.
    Type: Grant
    Filed: September 21, 1989
    Date of Patent: August 24, 1993
    Assignee: Digital Equipment Corporation
    Inventors: Bruce D. Buch, Cecil D. MacGregor