发明名称 |
Optical information recording device, optical information recording method, and signal processing circuit |
摘要 |
The present invention enables a recording condition closer to an optimum to be obtained even for media unknown to a drive. The present invention provides a method that is especially effective for the case where it is applied to a code identification scheme, such as PRML in which code identification is performed on the basis of information on an amplitude of an RF signal.; A condition for a recording pulse comprised of a top pulse, an intermediate pulse and a last pulse is configured in a predetermined order, that is, a reference condition is first determined by a test recording involving an examination of recording quality and changes in conditions for a power and a pulse width, then a condition for the last pulse is determined by a test recording using the reference condition, and subsequently a condition for the intermediate pulse is determined using the reference condition and the last pulse. A phase shift is corrected by a test recording using the recording pulse obtained by configuring the above conditions.
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申请公布号 |
EP2383734(A1) |
申请公布日期 |
2011.11.02 |
申请号 |
EP20110164825 |
申请日期 |
2006.02.07 |
申请人 |
TAIYO YUDEN CO., LTD. |
发明人 |
KAKIMOTO, HIROYA;SEKIGUCHI, MITSUO;MATSUDA, ISAO;YAMADA, MASASHI |
分类号 |
G11B7/0045 |
主分类号 |
G11B7/0045 |
代理机构 |
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