发明名称 Information terminal and content storage/playback method
摘要 An information terminal according to this invention includes a storage means having a first storage area which is accessible from an external terminal, and a second storage area which is inaccessible from the external terminal. Content which includes a content body and rights information indicating a use condition given to the content body is acquired. The acquired content is encrypted and the encrypted content is stored in the first storage area. In addition, state management information used to manage the variable state of the use condition given to the content body is generated on the basis of the rights information included in the acquired content, and the generated state management information is stored in the second storage area.
申请公布号 US7505955(B2) 申请公布日期 2009.03.17
申请号 US20050090996 申请日期 2005.03.24
申请人 KABUSHIKI KAISHA TOSHIBA 发明人 WATANABE KEIKO;SATO JUN;TERAUCHI TORU
分类号 G06F17/30;H04L9/00;H04N7/167 主分类号 G06F17/30
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