Patents by Inventor Henry K. H. Wong

Henry K. H. Wong 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).

  • V.35 network terminator
    Patent number: 5789943
    Abstract: A V.35 compliant driver is disclosed. The driver has three operational modes: OFF, low power (approximately 1/3 full power), and full power. The driver is placed in an appropriate mode based on conditions sensed at driver outputs. More particularly, the driver turns OFF upon sensing a short circuit condition, and reverts back to a normal operating condition following cessation of the short circuit condition by transitioning through a low power mode. Innovative approaches for satisfying V.35 source impedance measurement requirements and driver termination are also disclosed. All of the components associated with the driver reside on a single integrated circuit.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: August 4, 1998
    Assignee: Sipex Corporation
    Inventors: Henry K. H. Wong, Paul S. Chan, Raymond W. B. Chow