Patents by Inventor Thomas R. Scheib

Thomas R. Scheib 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).

  • Raster output scanner beam steering
    Patent number: 6355926
    Abstract: An apparatus for rapidly determining and correcting the position of a scanning light beam. The apparatus includes a linear position sensor that senses the position of the scan line and a circuit that produces a position signal from the sensed scan line position. A closed loop scan line control system further includes a scan line correction mechanism that adjusts the position of the scan line such that the position of the scan line is corrected for each individual polygon facet. Beneficially, the closed loop scan line correction mechanism includes a mover that moves an optical element, such as a mirror or lens, that adjusts the scan line position.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: March 12, 2002
    Assignee: Xerox Corporation
    Inventors: Fred F. Hubble, III, William J. Nowak, Robert M. Lofthus, Thomas R. Scheib