Patents by Inventor Roger R. Richard

Roger R. Richard 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).

  • Interprocessor communication apparatus for a data processing system
    Patent number: 3934232
    Abstract: In a data processing system having independently operating asynchronous processors, apparatus is disclosed which provides for interprocessor synchronization and/or information exchange. Synchronization interlocks and controls are provided for both identifying shared resources of a control processor and an input/output controller (IOC) processor and for obtaining control over these shared resources. If a conflict situation for any one of the shared resources arises, apparatus is disclosed whereby the IOC processor is provided the capability of assuming control over the shared resource even though the central processor has control over it. One of the shared resources is an interprocessor communication register which allows communication of control information between both the central processor and the IOC processor and from the central processor to the peripheral processor over a shared bus.
    Type: Grant
    Filed: April 25, 1974
    Date of Patent: January 20, 1976
    Assignee: Honeywell Information Systems, Inc.
    Inventors: John L. Curley, Roger R. Richard