Patents by Inventor David H. C. Nhu

David H. C. Nhu 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).

  • Fiber optical data interface system
    Patent number: 5661583
    Abstract: A coupler device is disclosed that establishes an optical link between elrical equipment operated in accordance with a protocol defined by the requirements of a Navy Tactical Data System. The coupler device provides for the optical link which is beneficial in many military applications and that rids associated communication network of heavy and costly copper or coaxial cables, allowing the replacement thereof with the less expensive and lighter fiber optic cables.
    Type: Grant
    Filed: October 25, 1995
    Date of Patent: August 26, 1997
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: David H.C. Nhu
  • Microprocessor chip incorporating optical signal coupling transceiver
    Patent number: 5237441
    Abstract: Microprocessor and transceiver circuitry are incorporated into a single c for enhanced, high speed operation of an electronic circuit board by use of optical fiber connections between two or more of such single chips and external peripherals. The transceiver circuitry includes transmitter and receiver sections through which the optical signals are respectively generated and received by a light emitting diode and a photo-diode.
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: August 17, 1993
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: David H. C. Nhu
  • Logic level data conversion system
    Patent number: 4975602
    Abstract: Interfacing of different logic level devices is effected through a multi-ic level converter under selective control of an assembly of coupler connectors enabling different logic level voltage conversions and operational monitoring of the converter.
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: December 4, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: David H. C. Nhu