发明名称 |
RECORDING MEDIUM, AND DEVICE AND METHOD FOR RECORDING INFORMATION ON RECORDING MEDIUM |
摘要 |
<p>A recording medium (100) for storing content that can be read and written by a host device stores a content key (a key that is used for encrypting content) (805a) encrypted in a first format, and a content key (805b) that is encrypted in a second format for content that is the same as the content related to the content key (805a) encrypted in the first format. The first format is, for example, a format used for distributed content, and the second format is a format used with local content.</p> |
申请公布号 |
EP1777628(A4) |
申请公布日期 |
2008.12.17 |
申请号 |
EP20050765379 |
申请日期 |
2005.06.28 |
申请人 |
PANASONIC CORPORATION |
发明人 |
OCHI, MAKOTO;SO, HIROKAZU;INOUE, SHINJI;FUJIMURA, K.;MAEDA, TAKUJI;SUTO, MASATO;INOUE, YUKIKO |
分类号 |
G06F12/14;G11B20/00;G11B20/12 |
主分类号 |
G06F12/14 |
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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