Optical disc device

Details Optical disc device Optical disc device

1998-01-09

2000-07-11

Huber, Paul W.

Dynamic information storage or retrieval

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

Mechanism control by the control signal

369 48, G11B 509

Patent

active

060883111

ABSTRACT:
An optical disc device is provided with a channel phase-locked loop (channel PLL) for generating a read clock signal and a wobble phase-locked loop (wobble PLL) for generating a write clock signal. A frequency divider divides the frequency of the write clock signal from the wobble PLL by a predetermined number n so as to generate a pseudo channel data. A selector selects the pseudo channel data and then furnishes the selected pseudo channel data to the channel PLL when the optical disc device handles a not-yet-recorded area between two adjacent header areas on an optical disc where no data is recorded. The channel PLL locks itself with the pseudo channel data from the selector.

REFERENCES:
patent: 5469417 (1995-11-01), Tanoue et al.

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