Patents by Inventor Delwyn Roche Wheeler, Jr.

Delwyn Roche Wheeler, 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).

  • Test vehicle for selectively inserting diagnostic signals into a bus-connected data-processing system
    Patent number: 4066883
    Abstract: A test vehicle capable of being interleaved in a bus-connected data-processing system includes two unidirectional transmission units having outputs connected to opposite ones of bus connecting terminals and inputs connected to such terminals. A direction controller in the vehicle controls the transmission of signals through the unidirectional transmission units. Each of the transmission units has means for receiving diagnostic signals from an external source which also controls the directional controller which in turn controls the transmission units. The direction controller further receives signals from the transmission units for controlling transmission of signals therethrough.
    Type: Grant
    Filed: November 24, 1976
    Date of Patent: January 3, 1978
    Assignee: International Business Machines Corporation
    Inventor: Delwyn Roche Wheeler, Jr.