Optical disk, optical disk recording method and optical disk...

Dynamic information storage or retrieval – Binary pulse train information signal – Including sampling or a/d converting

Reexamination Certificate

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Details

C369S059100, C369S275400, C369S275100

Reexamination Certificate

active

07321538

ABSTRACT:
A signal can be detected based on a level slice system and detection delay time can be reduced by setting the recording density of a header field in a linear direction lower (coarse) than that of a user data recording field. Further, a signal can be detected based on the level slice system and detection delay time can be reduced by using a mark position form having a large detection margin as an information recording system of the header field. A readout error of a sector number due to a detection error is compensated for by recording address marks AM for attaining byte synchronization of the header field in both of a head portion and tail portion of information recorded in the header field.

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