发明名称 |
Content-data processing apparatus, content-data processing method, content data management system and content data management method |
摘要 |
In a music-content management system, a client handles three types of data, i.e., a file for encrypting content and storing the content, a key that encrypted the content, and a use condition description for each service in which the content is used. The file stores one type of content encryption system and one type of encrypted content. The file also stores information regarding use condition descriptions for respective services.
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申请公布号 |
US2005105739(A1) |
申请公布日期 |
2005.05.19 |
申请号 |
US20040972382 |
申请日期 |
2004.10.26 |
申请人 |
SONY CORPORATION |
发明人 |
EBIHARA MUNETAKE;KATSUMATA MITSURU |
分类号 |
G06F21/24;G06F12/00;G06F12/14;G06F21/00;G10K15/02;G11B20/00;H04H20/82;H04H60/23;H04L9/00;H04L9/08;(IPC1-7):H04L9/00 |
主分类号 |
G06F21/24 |
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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