Patents by Inventor Peter van Roekens

Peter van Roekens 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).

  • Increasing storage density of optical data media by detecting a selected portion of a light spot image corresponding to a single domain
    Patent number: 5247510
    Abstract: A light detection apparatus includes at least one re-imaging lens that re-images a light beam reflected from an optical storage medium, to form an image of a light spot formed by the light beam on the storage medium. At least one detector detects a selected portion of the image The selected portion of the image contains only such information as is encoded on a region of the optical data storage medium that is illuminated by a corresponding portion of the light spot.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: September 21, 1993
    Assignee: Digital Equipment Corporation
    Inventors: Neville K. S. Lee, Quocdung T. Lam, Peter van Roekens