Reproducing or recording device for reproducing, or recording on

Details Reproducing or recording device for reproducing, or recording on Reproducing or recording device for reproducing, or recording on

1997-09-10

1999-06-22

Edun, Muhammad N.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4427, 369 47, 369 50, G11B 700

Patent

active

059149248

ABSTRACT:
A reproducing and/or recording device for reproducing, or for recording on, an optical recording medium, having a tracking sychronization circuit (1), which has a variable center frequency generator (12, 13). The tracking synchronization circuit (1) can be operated with different center frequencies depending on application, and this has the advantage that identically designed tracking synchronization circuits (1) can be used for different purposes. It is advantageous that adaptive adjustment of a center frequency once prescribed is additionally possible during operation, thus increasing the capture range of the tracking synchronization circuit.

REFERENCES:
patent: 5224086 (1993-06-01), Wachi
patent: 5553043 (1996-09-01), Yamaguchi et al.
patent: 5623465 (1997-04-01), Sasaki et al.

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