Patents by Inventor Robert F. Eyler

Robert F. Eyler 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).

  • Microcoprocessor, memory management unit interface to support one or more coprocessors
    Patent number: 5283881
    Abstract: The invention comprises an interface for switching control of a memory management unit (MMU) between a central processing unit (CPU) having a register stack for storing data, and one or more coprocessors (COP) each having register stacks for storing data. The COP is operative when actuated to perform selected functions, not normally performed by the CPU, utilizing information in memory.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: February 1, 1994
    Assignee: Westinghouse Electric Corp.
    Inventors: William J. Martini, Thomas J. Neufelder, Joel E. Lawhon, Robert F. Eyler