Optical information control device and synchronizing method ther

Details Optical information control device and synchronizing method ther Optical information control device and synchronizing method ther

1996-02-02

1996-11-19

Edun, Muhammad N.

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

369 50, 369 49, 369 59, 369 32, G11B 700

Patent

active

055770134

ABSTRACT:
An optical information control device and synchronizing method therefor include a mark detection circuit for detecting marks recorded at even intervals in a track on an optical disk and outputting a mark detection signal indicating a detected mark; a frequency dividing circuit for generating a reference clock by frequency-dividing a pit clock and stopping an operation thereof when having received the mark detection signal; and a resumption circuit for resuming the frequency dividing circuit after a preset time from reception of the mark detection signal. Moreover, the reference clock, may be synchronized to a byte boundary of data recorded on the optical disk by stopping generation of the reference clock for a preset time.

REFERENCES:
patent: 5172357 (1992-12-01), Taguchi
patent: 5327300 (1994-07-01), Satomura
patent: 5416760 (1995-05-01), Masood et al.

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