发明名称 |
Method for facilitating copyright protection in digital media and digital media made thereby |
摘要 |
In one embodiment, a disc has a substrate; a data layer on the substrate; an anomaly-feature in the data layer disc capable of generating a read anomaly having a predictable anomaly profile; and anomaly profile data recorded in the data layer for characterizing the anomaly-feature. A disc can be labeled by imposing an anomaly-feature in the data layer capable of generating a read anomaly having a predictable anomaly profile; and disposing anomaly profile data on the disc, wherein the anomaly profile data characterizes the anomaly-feature.
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申请公布号 |
US7391691(B2) |
申请公布日期 |
2008.06.24 |
申请号 |
US20040925090 |
申请日期 |
2004.08.24 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
MARUYAMA HARUHISA;NIEMEYER MATTHEW F.;REIS DAVID P. |
分类号 |
G11B7/00;G11B7/005;G11B7/007;G11B20/00 |
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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