Interactions between Servo Loops of an Optical Disk Drive.

DOI Web Site Web Site Web Site 1 Citations 38 References
  • Semba Tetsuo
    IBM Tokyo Research Laboratory, 1623–14, Shimo–tsuruma, Yamato, Kanagawa 242, Japan
  • Bates Allen K.
    IBM Storage System Division, 9000 S. Rita Rd., Tucson, Arizona 85744, U.S.A.
  • Fennema Alan A.
    IBM Storage System Division, 9000 S. Rita Rd., Tucson, Arizona 85744, U.S.A.

Bibliographic Information

Other Title
  • Interactions between Servo Loops of an
Published
1997
DOI
  • 10.1143/jjap.36.557
Publisher
The Japan Society of Applied Physics

Search this article

Description

In optical disk drives, interactions between the electromechanical actuators and the servo error generation systems can cause instabilities in the operation of individual servo loops. We examine the effects of these interactions on the servo loops of an optical disk drive in which a galvano fine-tracking actuator, a push-pull tracking error detection scheme, and an astigmatic focus error detection method are used. Also, we describe a digital servo controller that effectively cancels the effects of the deleterious interactions, resulting in stable operation.

Journal

Citations (1)*help

See more

References(38)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top