Optical disk, optical disk device, and optical disk...

Details Optical disk, optical disk device, and optical disk... Optical disk, optical disk device, and optical disk...

G - Physics

11

B

G11B 7/24 (2006.01) G11B 7/0037 (2006.01) G11B 7/0045 (2006.01)

Patent

CA 2524155

The present invention relates to an optical disk, an optical disk device, and an optical disk recording method. When it is applied to, for example, a compact disk. It attempts to reduce a jitter at the time of reproduction, and reproduce surely the recorded data. A change pattern of a modulation signal (S2) is detected, and the timing of a modulation signal (S1) is corrected according to this change pattern, to irradiate a laser beam L.

La présente invention a trait à un disque optique, un dispositif à disque optique et à une méthode d'enregistrement de disque optique. Lorsqu'elle est appliquée, par exemple, à un disque compact, cette invention tend à réduire le scintillement lors de la reproduction, et elle reproduit de manière sûre les données enregistrées. Un diagramme de changement est détecté dans le signal de modulation (S2), et la synchronisation du signal de modulation (S1) est corrigée conformément à ce diagramme de changement, pour irradier un faisceau laser L.

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