Patents Represented by Law Firm Spenley Horn Jubas & Lubitz
  • Disc rotation servo control apparatus in a disc player
    Patent number: 4603412
    Abstract: The rotation speed of a disc rotation motor is controlled such that a synchronizing signal derived from an output signal reproduced from a disc coincides with a reference oscillation frequency. The amount of data accumulated in a memory provided for absorbing jitter of the output signal reproduced from the disc is detected. In response to a result of the detection, a control signal in the disc rotation control is corrected such that the amount of data accumulated in the memory becomes substantially constant.
    Type: Grant
    Filed: November 8, 1983
    Date of Patent: July 29, 1986
    Assignee: Nippon Gakki Seizo Kabushiki Kaisha
    Inventor: Shohei Yamazaki