Information recording method and optical disk unit

Disclosed are an information recording method and an optical disk unit that maintain a good jitter even when a line velocity is variable in a mark edge system. In the case where an erasing power when erasing a record mark at a linear velocity v 1 is Pe1(mW), a recording power when forming the record...

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Bibliographic Details
Main Authors MIYAMOTO MAKOTO, USHIYAMA JUNKO, MINEMURA HIROYUKI
Format Patent
LanguageEnglish
Published 21.03.2006
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:Disclosed are an information recording method and an optical disk unit that maintain a good jitter even when a line velocity is variable in a mark edge system. In the case where an erasing power when erasing a record mark at a linear velocity v 1 is Pe1(mW), a recording power when forming the record mark at the linear velocity v 1 is Pw1(mW), an erasing power when erasing the record mark at a linear velocity v 2 faster than v 1 is Pe2(mW), and a power when forming the record mark at the linear velocity v 2 is Pw2(mW), a relationship of Pw1/Pe1>Pw2/Pe2 is satisfied.
Bibliography:Application Number: US20010793633