Patents by Inventor Chung-Hsia Wu

Chung-Hsia Wu 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).

  • Driver circuit, with low idle power consumption, for an attachment unit interface
    Patent number: 5644258
    Abstract: A driver circuit, for an attachment unit interface in a network, includes a constant current source, a pair of logic gates, a differential transistor pair, a pair of load resistors, at least a first pair of switch transistors, a pair of source followers and another switch transistor. The source followers receive the differential voltage outputs from the drain terminals of the differential transistors. The bias current which operates the differential transistor pair is saved during Idle of the circuit by a de-assertion state of an enable signal.
    Type: Grant
    Filed: January 4, 1996
    Date of Patent: July 1, 1997
    Assignee: Winbond Electronics Corp.
    Inventor: Chung-Hsia Wu