Patents by Inventor Theresa T. Tran

Theresa T. Tran 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).

  • Optically based position location system for an autonomous guided vehicle
    Patent number: 5812267
    Abstract: An optically based position location system, comprises multiple reflectors ositioned at known locations in an environment; a vehicle for traveling along a path in the environment; a first sensor for generating and detecting a collimated and polarized first light signal reflected from one of the reflectors, and for generating a first output signal in response to detecting the first light signal; a second sensor for generating and detecting a collimated and polarized second light signal reflected from the reflector reflecting the first light signal, and for generating a second output signal in response to detecting the second light signal; and a data processor which uses the first and second output signals for determining the distance between a reference coordinate on the vehicle and the reflector.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: September 22, 1998
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Hobart R. Everett, Jr., Gary A. Gilbreath, Rebecca S. Inderieden, Theresa T. Tran, John M. Holland