发明名称 |
Disklike recording media, a method for detecting forged disks, and anti-forgery system for performing a true-false judgement based on information collected from the recording media, and a manufacturing apparatus for recording information in the disks |
摘要 |
A recording medium includes first information selected from a plurality of information patterns and second information selected from another plurality of information patterns for the true-false judgement. A true-false judging device performs a statistic analysis when any coincidence is found between the readout combination of the first and second information and registered combination patterns, to identify an inspected recording medium as a forged product based on the result of the statistic analysis.
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申请公布号 |
US7623422(B2) |
申请公布日期 |
2009.11.24 |
申请号 |
US20080216226 |
申请日期 |
2008.07.01 |
申请人 |
VICTOR COMPANY OF JAPAN, LTD. |
发明人 |
KONDO TETSUYA |
分类号 |
G11B5/09;G11B20/10;G11B5/58;G11B7/00;G11B7/004;G11B7/007;G11B7/24;G11B7/26;G11B19/12;G11B20/00;G11B23/28 |
主分类号 |
G11B5/09 |
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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