Patents by Inventor Roger C. Parker

Roger C. Parker 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).

  • Mirror position sensor for improved track selection in optical data disk system
    Patent number: 4564757
    Abstract: Disclosed is a laser recording arrangement including a mirror for redirecting the laser beam in a controlled scan mode plus an associated electro-optical position monitor for monitoring mirror orientation, these being housed in a unitary casting.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: January 14, 1986
    Assignee: Burroughs Corporation
    Inventors: Edward V. LaBudde, Jeffrey E. Niven, Der-Chang Hsieh, Roger C. Parker, Robert Jeffery Johnson