发明名称 |
Method and apparatus for storing copy protection information separately from protected content |
摘要 |
A copy protection system and method enabling storage of copy protection information separately from protected content is disclosed. One embodiment includes a mechanism for playing a recording medium, the recording medium having stored thereon a digital content file and a copy protection information file, the mechanism producing a digital content signal from the digital content file and a copy protection signal from the copy protection file; a digital to analog converter operatively connected to the mechanism for converting the digital content signal to an analog signal; a copy protection detector connected to the mechanism for detecting a copy protection trigger present in the digital content signal; and a signal modifier connected to the copy protection detector for modifying the analog signal to include the copy protection signal in response to detection of the copy protection trigger.
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申请公布号 |
US7784103(B2) |
申请公布日期 |
2010.08.24 |
申请号 |
US20040968487 |
申请日期 |
2004.10.19 |
申请人 |
ROVI SOLUTIONS CORPORATION |
发明人 |
RYAN JOHN O.;QUAN RONALD;SALTER JAMES H. |
分类号 |
G06F7/04 |
主分类号 |
G06F7/04 |
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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