发明名称 |
Phase-change optical recording medium having tracking signal smaller than saturation value |
摘要 |
A phase-change optical storage medium has a substrate and a recording layer having a plurality of tracks for storing information. A material of which the recording layer is made has been initialized in a crystalline state in which an amplitude of a tracking-detection signal is smaller than a saturation value of the amplitude, the tracking-detection signal being obtained by receiving a reflected beam from the recording layer when the recording layer is irradiated with a laser beam in an off-track state while the optical storage medium is being rotated.
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申请公布号 |
US7668071(B2) |
申请公布日期 |
2010.02.23 |
申请号 |
US20050044783 |
申请日期 |
2005.01.27 |
申请人 |
VICTOR COMPANY OF JAPAN, LTD. |
发明人 |
SHIMOMAI KENICHI;YONEHARA KAZUO;MATSUMOTO IKUO;TOKUI KENJI;TABATA HIROSHI |
分类号 |
G11B7/0045;G11B7/24;G11B7/26 |
主分类号 |
G11B7/0045 |
代理机构 |
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主权项 |
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地址 |
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