Patents by Inventor Robert D. Boehlje

Robert D. Boehlje 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: 4167781
    Abstract: A microprocessor system wherein a plurality of programs shares a single central processing unit. A first subsystem includes a memory having a program counter for indicating the point of execution of a program and a data pointer indicating the location in memory of data processed by the program in execution. At least one other subsystem includes a memory having a program counter for indicating the point of execution of a program and a data pointer indicating the location in memory of data being processed by the program in execution in that subsystem. A console control module is interconnected with the system data bus and the first and second subsystems, and controls operation of the central processing unit with each subsystem. The subsystem not connected to the central processing unit indicates the point of interruption of program execution with the program counter and indicates the location of data being processed by the interrupted program.
    Type: Grant
    Filed: October 12, 1976
    Date of Patent: September 11, 1979
    Assignee: Fairchild Camera and Instrument Corporation
    Inventors: Anthony R. Beccia, Robert D. Boehlje, Peter T. Jacobsen, Richard Olney