发明名称 |
Disc signature for disc authentication |
摘要 |
The invention relates to a memory authentication method based on a pattern of storage areas of said memory that have altered latencies that are respectively altered such that the respective alteration of the latency of a storage area lies within a measurement noise of latency measurements in respect to the standard latency of said storage area when the measurement is performed with a reading device for accessing said record medium. The verification is then performed by a correlation of the latencies of the altered storage areas with a key used to alter the storage areas.
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申请公布号 |
EP1672631(A1) |
申请公布日期 |
2006.06.21 |
申请号 |
EP20040029583 |
申请日期 |
2004.12.14 |
申请人 |
SONY DADC AUSTRIA AG |
发明人 |
MEERWALD, PETER;WINTER, ANDREAS;KUBERA, OLIVER;KATTNER, GUENTHER |
分类号 |
G11B20/00 |
主分类号 |
G11B20/00 |
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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