发明名称 Content delivery system, content delivery apparatus, content recording and reproduction apparatus and content recording and reproduction method, and computer program
摘要 The invention relates to properly protecting broadcast contents stored on a receiver side from copying without permission and illegal use in server type broadcasting. According to the invention, contents are sent from a broadcast sending side in a state in which copyright information for the contents is added to the contents. On the other hand, on a receiving client side applicable to server type digital broadcasting, it is possible to perform appropriate control for reproduction of contents and recording reservation on the basis of copyright information for contents such as the number of times of reproduction of contents, restriction of display resolution at the time of reproduction of contents, and an expiration date of content reproduction. According to this copyright information, it is possible to perform detailed control for a display device incorporated in or connected to a receiver.
申请公布号 US7904928(B2) 申请公布日期 2011.03.08
申请号 US20050520684 申请日期 2005.01.06
申请人 SONY CORPORATION 发明人 YAMAGUCHI HIROSHI;HAMADA ICHIRO
分类号 H04N7/173;H04N7/20;G06F21/10;G06F21/24;G06Q50/00;G06Q50/10;G11B20/10;H04N5/76;H04N5/91;H04N5/913;H04N7/025;H04N7/03;H04N7/035;H04N7/08;H04N7/081;H04N7/16 主分类号 H04N7/173
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