Patents by Inventor Richard B. Gay

Richard B. Gay 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).

  • Circuit for initiating test modes
    Patent number: 4714876
    Abstract: A circuit for adding a function such as a test mode to an integrated circuit includes a pad for receiving an enabling voltage when the added function is to be enabled, and a semiconductor device having an input terminal connected to the pad, a reference terminal for receiving a reference voltage, a diode junction having one side connected to the input terminal and its other side connected to the reference terminal for applying a bias across the diode junction, and an output terminal controlled by the diode junction such that current flows therethrough when the diode junction is forward biased, and does not flow when said diode junction is reversed biased.
    Type: Grant
    Filed: April 14, 1986
    Date of Patent: December 22, 1987
    Assignee: NCR Corporation
    Inventors: Richard B. Gay, Harold S. Crafts