发明名称 |
DATA DISTRIBUTION SYSTEM |
摘要 |
There is provided a data distribution system which prevents unauthorized copying while permitting copying for private use. To a server 100, a home server 200 transmits identification data identifying a user and/or a device with respect to which/whom playback permission of copyrighted-material data is requested, and requests transmission of a desired piece of copyrighted-material data. The server 100 transmits the copyrighted-material data to a home server 200, with the identification data being appended to the desired piece of copyrighted-material data. The home server 200 receives the copyrighted-material data from the server 100. Based on the identification data appended to the copyrighted-material data, the home server 200 determines whether or not playback is permitted with respect to a user and/or a device that is attempting to play back copyrighted-material data, and plays the back copyrighted-material data if playback is permitted. |
申请公布号 |
EP1510059(A2) |
申请公布日期 |
2005.03.02 |
申请号 |
EP20030730744 |
申请日期 |
2003.06.02 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
KAJINO, OSAMU;MUSHIKA, YOSHIHIRO |
分类号 |
G06F15/16;G06F21/00;H04L12/22;H04L29/06;(IPC1-7):H04L29/06 |
主分类号 |
G06F15/16 |
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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