发明名称 |
APPARATUS FOR AND A METHOD OF PROVIDING CONTENT DATA |
摘要 |
Apparatus and a method are described to enable reading apparatus to access content data of an optical disc such as a DVD where the content data carried by the DVD is encrypted by an encryption technique that requires a decryption key or keys. Reproduced content data corresponding to the encrypted content data is provided and this reproduced content data, at least some of which may be encrypted using a different technique, is made available for access by a reading apparatus. The reproduced content data may be stored on the same optical disc as the encrypted content data or at a different location, for example on a storage medium which may be coupled to the reading apparatus or at a location on a network that can be accessed by the reading apparatus. |
申请公布号 |
EP2135247(A1) |
申请公布日期 |
2009.12.23 |
申请号 |
EP20080726993 |
申请日期 |
2008.03.19 |
申请人 |
MACROVISION CORPORATION |
发明人 |
AYLWARD, ADRIAN;HOLLAR, MARK, A. |
分类号 |
G11B20/00;G06F21/00;G11B27/036;G11B27/10;G11B27/11 |
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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