发明名称 |
Server/client system for managing the transmission and use of copyrighted content, information processing unit, information processing method, and computer program |
摘要 |
A method of information processing in a server/client system including a server for storing content and a client for receiving from the server and storing copy content of the content stored in the server. The method includes the steps of: the server generating at least either a content-ID list storing content-IDs corresponding to content for which use-expiration-date updating is permitted out of the copy content stored in the client or a content-ID list storing content-IDs corresponding to content for which use-expiration-date updating is not permitted, transmitting the content-ID list to the client; and the client selectively performing update processing of use-expiration date out of the copy content stored in that client or invalidation processing of the copy content stored in that client based on the content-ID list received from the server.
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申请公布号 |
US8219643(B2) |
申请公布日期 |
2012.07.10 |
申请号 |
US20050152336 |
申请日期 |
2005.06.15 |
申请人 |
NAKANO TAKEHIKO;SHIMA HISATO;TAKABAYASHI KAZUHIKO;MINOYA YASUSHI;SONY CORPORATION |
发明人 |
NAKANO TAKEHIKO;SHIMA HISATO;TAKABAYASHI KAZUHIKO;MINOYA YASUSHI |
分类号 |
G06F15/16;G06F13/00;G06F15/173;G06F21/00;G06F21/10;G06F21/33;G06F21/60;G06F21/62;G06Q50/00;G06Q50/10;H04L29/08 |
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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