Patents by Inventor Vincent E. Ryan

Vincent E. Ryan 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).

  • All optical phase sensitive detector and image demultiplexer
    Patent number: 5303031
    Abstract: Method of demultiplexing a composite signal light beam includes the steps of directing the composite signal light beam and a reference light beam at a photorefractive material, modulating the reference beam at a frequency about equal to the modulation frequency of a selected signal beam to be demultiplexed, and recovering the phase conjugate signal produced by interference of the reference beam with the composite signal light beam within the photorefractive material. The method also enables optical phase detection of the selected signal beam with respect to the reference beam.
    Type: Grant
    Filed: May 8, 1992
    Date of Patent: April 12, 1994
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Jihad Khoury, Philip R. Hemmer, Charles L. Woods, Vincent E. Ryan