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Proceedings Paper

On-Land Composite Pregroove Method For High Track Density Recording
Author(s): Yoshito Tsunoda; Toshimitsu Kaku; Shigeru Nakamura; Takeshi Maeda
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Paper Abstract

In optical disk systems using push-pull tracking method, there have been problems of tracking offset errors caused by a disk skew and low signal-to-noise ratio due to a surface noise of the pregrooved area. In order to achieve higher track density recording, these problems have to be solved. We have developed a new type of on-land composite pregroove method for higher track density recording. In this method, the header data and the user data are recorded on the land area between two pregrooves on the disk. Each pregroove has 10-20 of tracking offset detection flags once per sector at each header area.

Paper Details

Date Published: 14 January 1987
PDF: 6 pages
Proc. SPIE 0695, Optical Mass Data Storage II, (14 January 1987); doi: 10.1117/12.936841
Show Author Affiliations
Yoshito Tsunoda, Hitachi Ltd. (Japan)
Toshimitsu Kaku, Hitachi Ltd. (Japan)
Shigeru Nakamura, Hitachi Ltd. (Japan)
Takeshi Maeda, Hitachi Ltd. (Japan)


Published in SPIE Proceedings Vol. 0695:
Optical Mass Data Storage II
Robert P. Freese; Albert A. Jamberdino; Maarten R. de Haan, Editor(s)

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