Patents by Inventor Wayne C. Parker

Wayne C. Parker 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).

  • Bus transceiver including compensation circuit for variations in electrical characteristics of components
    Patent number: 4614882
    Abstract: A bus transceiver having a driver with charging/discharging characteristics that are device-independent and a receiver that provides adequate noise immunity is described. The transceiver uses a reference network to modulate the conductance of a depletion device as a function of device parameter variations in order to maintain a constant response time for the driver and optimize peak current. The receiver uses a modified differential amplifier to provide high gain and hysteresis sufficient for a desired level of noise immunity.
    Type: Grant
    Filed: November 22, 1983
    Date of Patent: September 30, 1986
    Assignee: Digital Equipment Corporation
    Inventors: Wayne C. Parker, John W. May