发明名称 Digital content reproduction device and digital content use control method
摘要 In a content reproduction apparatus according to the present invention, for example, a content usage time indicating a usage permitted time of content is set for the content, and a content reproduction management unit 811 manages a usage state and a rewind limit position of the content. Here, the rewind limit position is a position which indicates that the content cannot be reproduced till the end in the case where a user executes a rewind operation. For example, in the case where the user attempts to execute the rewind operation on the part that is in front of the rewind limit position, the content management unit 811 notifies the user of a warning message in advance.
申请公布号 US2006085814(A1) 申请公布日期 2006.04.20
申请号 US20050541810 申请日期 2005.07.08
申请人 OKAMOTO RYUICHI;KOBAYASHI SUSUMU;WALTER STEFAN U;TOKUDA KATSUMI 发明人 OKAMOTO RYUICHI;KOBAYASHI SUSUMU;WALTER STEFAN U.;TOKUDA KATSUMI
分类号 G06F3/00;G06F13/00;G11B20/00;H04N5/783;H04N5/913;H04N7/16;H04N7/167 主分类号 G06F3/00
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