With Additional Drive (e.g., Scanning, Restoring, Or Return) Patents (Class 369/221)
  • Patent number: 4249746
    Abstract: A linear tracking control system for a video disc player comprising a playback transducer drive motor in addition to a turntable drive motor. A high voltage forward signal is applied to the playback transducer drive motor for performing a fast forward movement of the playback transducer. A high voltage reverse signal having a polarity opposite to the forward signal is applied to the playback transducer drive motor for achieving the fast reverse movement. A playback tracking control signal is intermittently applied to the playback transducer drive motor upon every four rounds of the turntable in order to intermittently advance the playback transducer in the playback operation.
    Type: Grant
    Filed: April 26, 1979
    Date of Patent: February 10, 1981
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kazuo Mimasu