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31. 发明申请

US20080022416A1 Content Management System and Content Management Unit 有权
标题翻译：内容管理系统和内容管理单元
公开(公告)号：US20080022416A1
公开(公告)日：2008-01-24
申请号：US11632863
申请日：2005-07-13
申请人： Hiroki Yamauchi , Natsume Matsuzaki , Yuichi Futa , Toshihisa Nakano
发明人： Hiroki Yamauchi , Natsume Matsuzaki , Yuichi Futa , Toshihisa Nakano
IPC分类号： G06F21/22
CPC分类号： G06F21/10 , G06F2221/2137
摘要： A content management system which can prevent a content from being copied exceeding the limited number of copies for the content. The content management system includes a first content management device and a second content management device. The first content management device stores period information that indicates an available period during which a first external device is permitted to use a copied content which has been copied from the content, and outputs the period information to the second content management device when the content is moved. Upon receiving the period information from the first content management device, the second content management device judges whether the available period of the copied content has expired, using the received period information, and if it is judges that the available period has not expired, it inhibits the content from being copied to the second external device.
摘要翻译：一种内容管理系统，其可以防止内容被复制超过该内容的有限数量的副本。内容管理系统包括第一内容管理装置和第二内容管理装置。第一内容管理装置存储指示允许第一外部装置使用从内容复制的复制内容的可用期间的周期信息，并且当内容移动时将该周期信息输出到第二内容管理装置。在从第一内容管理装置接收到期间信息的情况下，第二内容管理装置使用接收到的周期信息来判断复制内容的可用期间是否到期，如果判断为可用期间未到期，则抑制将内容从复制到第二个外部设备。

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