Method and apparatus for pre-compensation in an optical disc

Details Method and apparatus for pre-compensation in an optical disc Method and apparatus for pre-compensation in an optical disc

1989-09-28

1991-08-27

Richardson, Robert L.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369116, 346 76L, G11B 700

Patent

active

050439715

ABSTRACT:
A method and associated apparatus for providing improved data mark formation on an optical disc is disclosed. The amplitude of a laser write beam in an optical recording system is varied during application of the mark. Additionally, the illumination period of the laser is adjusted to account for differences between the actual length of a formed data mark and the desired length of a data mark.

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Watkinson, The Art of Digital Audio, Focal Press, 1988, Chap. 6, pp. 163-200.
Watkinson, The Art of Digital Audio, Focal Press, 1988, Chap. 8, pp. 248-296.

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