Patents by Inventor Thomas J. Perry

Thomas J. Perry 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: 4374413
    Abstract: An arbitration controller providing for equal priority sharing of a resource by a plurality of central processing units. Conflicts resulting from simultaneous requests from several CPU's for access to the common resource are resolved at a high rate of speed. In addition, an approximately statistically equal probability is maintained for access of the common resource by all the central processing units.
    Type: Grant
    Filed: June 26, 1980
    Date of Patent: February 15, 1983
    Assignee: GTE Automatic Electric Labs Inc.
    Inventors: Joseph A. Comfort, Thomas J. Perry, Michel Loos
  • Patent number: 4363096
    Abstract: An arbitration controller providing for equal priority sharing of duplicate copy resources by a duplex plurality of central processing units. Conflicts resulting from simultaneous requests from several CPU's for access to the common resource are resolved at a high rate of speed. In addition, an approximately statistically equal probability is maintained for access of the common resource by all the central processing units.
    Type: Grant
    Filed: June 26, 1980
    Date of Patent: December 7, 1982
    Assignee: GTE Automatic Electric Labs Inc.
    Inventors: Joseph A. Comfort, Thomas J. Perry, Michel Loos
  • Patent number: 4356404
    Abstract: This is a circuit for use to increase the number of bus circuit boards in a closed loop bus configuration. This circuit detects which bus circuit board is the last circuit board equipped in a closed loop configuration and closes the bus at that circuit, without requiring wiring changes or "dummy" circuit boards.
    Type: Grant
    Filed: May 26, 1981
    Date of Patent: October 26, 1982
    Assignee: GTE Automatic Electric Labs Inc.
    Inventors: Joseph A. Comfort, Thomas J. Perry, Michel Loos