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    • 28. 发明申请
    • Information provision system, content information copying device, user terminal device and user management device
    • 信息提供系统,内容信息复制装置,用户终端装置和用户管理装置
    • US20070061892A1
    • 2007-03-15
    • US11515932
    • 2006-09-06
    • Shinichi Kurihara
    • Shinichi Kurihara
    • H04L9/32
    • G06F21/6227
    • A content encryption device generates encrypted content and an encrypted content copying device copies the encrypted content on an information storage medium. The storage medium is sold at a charge or distributed at no charge. A user gets the storage medium to connect or set it to or in a user terminal device, accesses to a content key distribution device to present a part or a whole of medium information of the storage medium to the distribution device. The distribution device grasps the whole of the medium information of the copied medium together with copied content and makes a content key encryption device issue an encrypted content key on the basis of user presentation information and distributes it to the terminal device.
    • 内容加密装置生成加密内容,加密内容复制装置将加密内容复制到信息存储介质上。 存储介质以费用销售或免费分发。 用户获取存储介质以将其连接或设置到用户终端设备中,访问内容密钥分发设备以将存储介质的一部分或全部介质信息呈现给分发设备。 分发装置与复制的内容一起掌握复制的媒体的整个媒体信息,并使内容密钥加密装置基于用户呈现信息发布加密的内容密钥并将其分发给终端设备。