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Proceedings Paper

Automatic Loop Gain Control System Of Compact Disk (CD) Player's Tracking Servo
Author(s): Shigeki Inoue; Yoshimi Iso; Harushige Nakagaki; Masafumi Nakamura
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Paper Abstract

We developed the Automatic Loop gain Control System of CD Player's tracking servo. It measures Frame error numbers with changing the loop gain in playback, and enlarges the loop gain by a fixed value from the loop gain when the error numbers increase suddenly. Consequently, we were able to decrease the lens actuator noise and to adjust the deviation of track loop gain by disc characteristics.

Paper Details

Date Published: 1 January 1983
PDF: 7 pages
Proc. SPIE 0382, Optical Data Storage, (1 January 1983); doi: 10.1117/12.970207
Show Author Affiliations
Shigeki Inoue, Research & Development Promotion Center Hitachi, Ltd. (Japan)
Yoshimi Iso, Consumer Products Research Center Hitachi, Ltd. (Japan)
Harushige Nakagaki, Consumer Products Research Center Hitachi, Ltd. (Japan)
Masafumi Nakamura, Consumer Products Research Center Hitachi, Ltd. (Japan)

Published in SPIE Proceedings Vol. 0382:
Optical Data Storage
Di Chen, Editor(s)

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