Patents by Inventor H. John Bishop

H. John Bishop 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).

  • Transmultiplexer virtual group distribution frame
    Patent number: 4813035
    Abstract: A transmultiplexer for use in a telephone system is disclosed. The transmultiplexer includes a programmable virtual distribution frame feature which provides for information traffic to be switched from one digital group facility to another analog facility in both time division multiplexed and frequency division multiplexed directions.
    Type: Grant
    Filed: November 4, 1986
    Date of Patent: March 14, 1989
    Assignee: Granger Associates
    Inventors: H. John Bishop, Morley M. Merriss, Thomas L. Ohlsson, Terrence G. Sopira