Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Reexamination Certificate
2008-01-22
2008-01-22
Edun, Muhammad (Department: 2627)
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
C369S275100, C369S059220, C369S059100
Reexamination Certificate
active
11562263
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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Ando Hideo
Kashihara Yutaka
Noda Chosaku
Okamoto Yutaka
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