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Proceedings Paper

Track center servo and radial tilt servo system for DVD-RAM disk
Author(s): Shin-ichi Yamada; Seiji Nishiwaki; Atsushi Nakamura; Takashi Ishida; Hiroyuki Yamaguchi
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Paper Abstract

To increase optical disc capacity, the track pitch becomes narrower. This necessitates a higher-accuracy for track servo. However, with the push-pull track error detection, the standard error detection for rewritable optical disc, detection error occurs due to disc radial tilt. The authors propose new method of a track center detection method that detects track center more accurately than the push-pull track error detection method, and develop a track center servo and radial tilt servo system based on this detection method.

Paper Details

Date Published: 28 June 1999
PDF: 3 pages
Proc. SPIE 3864, Joint International Symposium on Optical Memory and Optical Data Storage 1999, 386406 (28 June 1999); doi: 10.1117/12.997638
Show Author Affiliations
Shin-ichi Yamada, Matsushita Electric Industrial Co., Ltd. (Japan)
Seiji Nishiwaki, Matsushita Electric Industrial Co., Ltd. (Japan)
Atsushi Nakamura, Matsushita Electric Industrial Co., Ltd. (Japan)
Takashi Ishida, Matsushita Electric Industrial Co., Ltd. (Japan)
Hiroyuki Yamaguchi, Matsushita Electric Industrial Co., Ltd. (Japan)


Published in SPIE Proceedings Vol. 3864:
Joint International Symposium on Optical Memory and Optical Data Storage 1999
Shigeo R. Kubota; Ryuichi Katayama; Douglas G. Stinson, Editor(s)

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