| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for ensuring efficient acquirement of necessary data from a device holding predetermined data. SOLUTION: A content acquisition device 200 requests a content management device 100 to provide contents. The content management device 100 provides the content acquisition device 200 with the contents meeting acquisition requirements included in the request. This enables the content acquisition device 200 to acquire the contents desired by a user, without the user designating the contents to be acquired one by one. COPYRIGHT: (C)2005,JPO&NCIPI
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