Patents by Inventor William J. Gist, Jr.

William J. Gist, 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).

  • Correcting crossover distortion produced when analog signal thresholds are used to remove noise from signal
    Patent number: 5287534
    Abstract: Apparatus for coupling and decoupling a data terminal to a computer system of the kind that continues to interact with a device only while the computer system detects interaction by the device. The apparatus includes switching circuitry for connection between the data terminal and the computer system; the switching circuitry has a first mode in which a path is provided for interaction between the data terminal and the computer system, and a second mode in which the path is disabled and the data terminal may engage in other activities. The apparatus also includes communication circuitry, responsive to the switching circuitry, for interacting with the computer system at times when the path is disabled, in order to cause the computer system to continue to interact with the communication circuitry during those times and then to be immediately available for interaction with the data terminal when the path is again provided.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: February 15, 1994
    Assignee: Digital Equipment Corporation
    Inventors: Thomas Reuther, Neil Bloomberg, William J. Gist, Jr., Albra M. Welch