Track counting servo circuit and method therefor

Details Track counting servo circuit and method therefor Track counting servo circuit and method therefor

1994-05-26

1996-09-17

Epps, Georgia Y.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

1369 44320, 1369 4434, G11B 700

Patent

active

055575919

ABSTRACT:
A track counting servo circuit compensating for track counting errors during high-speed accessing in an optical disk apparatus detects errors in the track count signal as the optical head moves over the tracks to a target track. The circuit produces a rectangular wave, which is consistent with the target speed in the error portion of the detected track count signal, and substitutes the rectangular wave for the error portion of the track count signal. Accordingly, the tracking accessing speed can be increased.

REFERENCES:
patent: 4989190 (1991-01-01), Kuroe et al.
patent: 5233486 (1993-08-01), Albert
patent: 5239530 (1993-08-01), Seo et al.
patent: 5270988 (1993-12-01), Kobayashi

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