Automatic tracking servo gain control apparatus

Details Automatic tracking servo gain control apparatus Automatic tracking servo gain control apparatus

1991-10-04

1992-09-22

Richardson, Robert L.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4434, 11B 700, G11B 700

Patent

active

051503468

ABSTRACT:
A playback signal from an optical disk includes a track cross component which is produced when a head traverses tracks on the disk and a recorded area component produced when the head passes an area on the track on which data is recorded. A control signal is generated which includes the recorded area component but not the track cross component. The control signal is also prevented from being affected by a mirror mark which is included in the playback signal. A tracking servo control gain is controlled by the control signal.

REFERENCES:
patent: 4616353 (1986-10-01), Kaneda et al.
patent: 5034940 (1991-07-01), Saito et al.

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