Patents by Inventor Brent C. Frogget

Brent C. Frogget 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).

  • Holographic data storage and retrieval system
    Patent number: 5007690
    Abstract: A plurality of reflective diffusing holographic memory elements (16) is positioned on a memory plate (14). An array (24) of detectors (22) faces at least one of the memory elements. A laser (26) illuminates the selected memory element and the data stored therein is reflected onto the array for reading. A new memory element may be illuminated or may be brought into interrogation position.
    Type: Grant
    Filed: March 21, 1989
    Date of Patent: April 16, 1991
    Assignee: Hughes Aircraft Company
    Inventors: Mao-Jin Chern, Ronald T. Smith, Brent C. Frogget