Patents by Inventor Richard L. Townsend, Jr.

Richard L. Townsend, Jr. 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).

  • Microcomputer arranged for direct memory access
    Patent number: 4348720
    Abstract: A microcomputer system arranged for performing direct memory access operations has direct memory access circuitry included on a single chip with the main processor of the microcomputer. Addressing for direct memory access operations is accomplished by circuitry also used for generating addresses when processing routine instructions in the main processor.
    Type: Grant
    Filed: August 31, 1979
    Date of Patent: September 7, 1982
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Donald E. Blahut, Victor K. Huang, Richard L. Townsend, Jr.