Patents by Inventor Gerardus J. Assink

Gerardus J. Assink 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).

  • Patent number: 4567533
    Abstract: The invention relates to an apparatus for reading an optical record carrier. During a search mode when an optical read unit is rapidly moved in a radial direction. By means of a control circuit a servo control loop is rendered operative and inoperative by a control circuit in accordance with a predetermined periodic pattern. By means of a deflection element in the optical read unit, the servo control loop controls the scanning position of the read spot on the record carrier. During a fast search operation, the control circuit defines the operative period of the servo control loop in such a way that the address signals recorded in the vertical flyback periods of the video signal are read with a high reliability.
    Type: Grant
    Filed: December 7, 1983
    Date of Patent: January 28, 1986
    Assignee: U.S. Philips Corporation
    Inventor: Gerardus J. Assink