发明名称 |
Optical Disk Recording/Reproducing Device and Disk Determination Method for Optical Disk Recording/Reproduction Device |
摘要 |
An optical disk recording/reproduction device and a disk determination method for an optical disk recording/reproduction device. The disk determination method compares with a threshold value a drive value when the arrival of a focus point at a recording surface is detected during a focus search relative to an optical disk ( 301 ) or a drive value during an on-focus state. By this, two or more kinds of optical disks having different substrate thicknesses are determined. The threshold value is determined based on a drive value during an on-focus state when one or more kinds of disks out of the two or more kinds of optical disks become reproducible.
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申请公布号 |
US2007206468(A1) |
申请公布日期 |
2007.09.06 |
申请号 |
US20050632848 |
申请日期 |
2005.07.14 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
TAKAHASHI YORIO;AITANI MAKOTO |
分类号 |
G11B7/00 |
主分类号 |
G11B7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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