Patents by Inventor Louis Yc. Chan

Louis Yc. Chan 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).

  • Universal differential line driver integrated circuit
    Patent number: 4042840
    Abstract: A universal differential line driver with a single pair of outputs provides by means of a pair of control input lines selectively sourcing, sinking or high impedance conditions on the output pair.
    Type: Grant
    Filed: September 2, 1975
    Date of Patent: August 16, 1977
    Assignee: Signetics Corporation
    Inventor: Louis Yc. Chan