Track-crossing count circuit in an optical disc apparatus

Details Track-crossing count circuit in an optical disc apparatus Track-crossing count circuit in an optical disc apparatus

1995-06-30

1996-10-08

Dinh, Tan

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 4428, G11B 1722, G11B 700

Patent

active

055638562

ABSTRACT:
A track-crossing count circuit in an optical disc device measures the amplitude changes in an RF signal for the high-speed accessing of an optical disc, instead of using a mirror signal. Accordingly, an exact count of the number of track-crossings is facilitated so that the desired position of the track is quickly and accurately detected.

REFERENCES:
patent: 4866687 (1989-09-01), Kasai et al.
patent: 5406537 (1995-04-01), Lee
patent: 5440535 (1995-08-01), Takagi et al.

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