28 June 1999 Lens shift correction for DVD-RAM tracking servo
Author Affiliations +
Abstract
Generally, push-pull tracking detection, necessary for read/write type optical disk, is sensitive to tracking lens-shift caused by eccentric disk rotation or track jump acceleration /deceleration. The lens-shift yields tracking offset easily, which makes record or reproduction information signal jitters get worse. The tracking offset versus to the lens-shift tends to be large, as an optical pick-up becomes small. Furthermore, in consideration of mobile application, not only the lens-shift but also the lens droops in a vertical posture increases.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tetsuya Shihara, Tetsuya Shihara, Katsuya Watanabe, Katsuya Watanabe, Shin-ichi Kadowaki, Shin-ichi Kadowaki, Hiromichi Ishibashi, Hiromichi Ishibashi, } "Lens shift correction for DVD-RAM tracking servo", Proc. SPIE 3864, Joint International Symposium on Optical Memory and Optical Data Storage 1999, 38640A (28 June 1999); doi: 10.1117/12.997639; https://doi.org/10.1117/12.997639
PROCEEDINGS
3 PAGES


SHARE
RELATED CONTENT

Servo issues with continuous pregroove media
Proceedings of SPIE (August 12 1992)
High Speed Accessing using Split Optical Head
Proceedings of SPIE (May 18 1989)
Interlinked Tracking Servo Technology
Proceedings of SPIE (January 13 1987)

Back to Top