Patents by Inventor Ralph K. Ungermann

Ralph K. Ungermann 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).

  • Microprocessor apparatus
    Patent number: 4486827
    Abstract: A special reset function is provided in the CPU, using the same control input to the CPU as the normal reset, to reset only the program counter to facilitate the use of a single CPU in a microprocessor development system.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: December 4, 1984
    Assignee: Zilog, Inc.
    Inventors: Masatoshi Shima, Federico Faggin, Ralph K. Ungermann
  • Microprocessor apparatus and method
    Patent number: 4332008
    Abstract: Microprocessor apparatus in which the CPU generates as an integral function memory refresh addresses for an external dynamic memory without degradation of CPU performance. The CPU architecture is optimized by dividing the CPU devices selectively into groups during different time periods by the use of switching devices in the internal bus structure.
    Type: Grant
    Filed: November 9, 1979
    Date of Patent: May 25, 1982
    Assignee: Zilog, Inc.
    Inventors: Masatoshi Shima, Federico Faggin, Ralph K. Ungermann