Optical disk drive apparatus

Details Optical disk drive apparatus Optical disk drive apparatus

1998-04-13

2000-10-17

Huber, Paul W.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

5412414, G11B 700

Patent

active

061341975

ABSTRACT:
An optical disk drive apparatus drives an optical disk at a constant angular velocity (CAV). The optical disk is formatted under constant linear velocity (CLV). The phase error changes linearly from the inner most track to the outer most track. Tack pulse counter is provided to detect the radial position of the optical head on the optical disk. Calculators are provided to correct the phase error according to the radial position of the optical head.

REFERENCES:
patent: 4740940 (1988-04-01), Tanaka et al.
patent: 4785441 (1988-11-01), Tanaka et al.
patent: 5671200 (1997-09-01), Yamaguchi et al.
patent: 5859816 (1999-01-01), Yamamoto
patent: 5986999 (1999-11-01), Takahashi
English language abstract of JP 9-0274771.
English Language Abstract of JP6-28697.

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