发明名称 |
CONTENT DELIVERY SYSTEM, INFORMATION PROCESSING APPARATUS OR INFORMATION PROCESSING METHOD, AND COMPUTER PROGRAM |
摘要 |
A copyright-managed environment is provided in which encrypted content and a license for decrypting the content are handled separately. Each client registered in the environment uses content legitimately. After the content acquired by a client A of a user is stored into a client B of the same user, the client B may receive a new license for the same content from a license server. This allows the content to be shared between the clients A and B while the copyright of the content is protected. The inventive environment allows the user having acquired a license to use the corresponding content on a plurality of apparatuses in his or her possession while illegal content uses are forestalled. <IMAGE> |
申请公布号 |
EP1587000(A1) |
申请公布日期 |
2005.10.19 |
申请号 |
EP20030786282 |
申请日期 |
2003.12.24 |
申请人 |
SONY CORPORATION;MURAKAMI, MIKI;HISAMATSU, FUMUAKI |
发明人 |
MURAKAMI, MIKI,;HISAMATSU, FUMIAKI, |
分类号 |
G06F12/14;G06F21/00;G06F21/10;G06F21/64;G06Q10/00;G06Q30/02;G06Q30/04;G06Q30/06;G06Q50/00;G06Q50/10;(IPC1-7):G06F12/14;G06F17/60;G06F15/00 |
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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