Patents by Inventor J. Doyle McClure

J. Doyle McClure 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).

  • High accuracy optical position sensing system
    Patent number: 5294075
    Abstract: An optical position sensing system for sensing the position of a displaceable element. An electro-optical unit outputs a modulated optical signal and a chirped rf signal. The envelope of the modulated optical signal has a phase that has a known relation to the phase of the chirped rf signal. The electro-optical unit is coupled to a light guide element and receives and transmits the modulated optical signal along an optical path for reflection off a surface of the displaceable element in order to provide a position sensing optical signal. A reference reflecting element is disposed in the optical path upstream of the displaceable element for partially reflecting the transmitted modulated optical signal in order to provide a reference optical signal.
    Type: Grant
    Filed: August 28, 1991
    Date of Patent: March 15, 1994
    Assignee: The Boeing Company
    Inventors: Edward J. Vertatschitsch, Gregory L. Abbas, Michael de La Chapelle, J. Doyle McClure