Optical disk, optical disk recording method and optical disk apparatus
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United States of America Patent
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Feb 26, 2008
Grant Date -
Apr 19, 2007
app pub date -
Nov 22, 2006
filing date -
May 23, 2000
priority date (Note) -
Expired
status (Latency Note)
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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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