Patents by Inventor Charles K. Buedel

Charles K. Buedel 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).

  • Direct memory access expander unit for use with a microprocessor
    Patent number: 4180855
    Abstract: A direct memory access unit for controlling a predetermined number of peripheral devices which directly read from and write into a memory associated with a microprocessor. Control of a plurality of peripheral devices by the direct memory access unit is performed on a non-priority basis, by a number of modular circuits connected in cascade.
    Type: Grant
    Filed: April 7, 1978
    Date of Patent: December 25, 1979
    Assignee: GTE Automatic Electric Laboratories Incorporated
    Inventor: Charles K. Buedel