Optical storage apparatus with track seeking control system

Details Optical storage apparatus with track seeking control system Optical storage apparatus with track seeking control system

1996-12-20

1998-06-16

Tran, Thang V.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4429, G11B 7085

Patent

active

057682291

ABSTRACT:
A low speed lens lock control unit detects an amount of an optical axial deviation of an objective lens from an offset of a tracking error signal which is obtained in a low speed seeking mode and drives a carriage actuator so as to set the optical axial deviation of the objective lens to zero. A high speed lens lock control unit detects an amount of an optical axial deviation of the objective lens from an offset of a tracking error signal which is obtained in a high speed seeking mode and drives a lens actuator so as to set the optical axial deviation of the objective lens to zero.

REFERENCES:
patent: 5182736 (1993-01-01), Yanagi
patent: 5195067 (1993-03-01), Yanagi
patent: 5258966 (1993-11-01), Yanagi
patent: 5289447 (1994-02-01), Kobayashi et al.
patent: 5351222 (1994-09-01), Ikeda et al.
patent: 5487055 (1996-01-01), Suzuki
patent: 5675562 (1997-10-01), Yanagi

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