Disk driving device and method for optical recording and reprodu

Details Disk driving device and method for optical recording and reprodu Disk driving device and method for optical recording and reprodu

1996-08-01

1998-04-14

Huber, Paul W.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4427, 369 94, G11B 700

Patent

active

057401365

ABSTRACT:
A disk driving device for use in recording and/or reproducing data on an optical recording medium having a plurality of recording layers. When a focus jump operation is executed between the recording layers, an actuator displaces an objective lens in response to a selectively generated acceleration or deceleration pulse and a focus error signal. Instability of the focus jump operation derived from noise superimposed on the focus error signal or from sensitivity variations in the actuator is eliminated.

REFERENCES:
patent: 5499231 (1996-03-01), Fennema et al.

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