发明名称 SYSTEM AND METHOD FOR CONTROLLED COPYING AND MOVING OF CONTENT BETWEEN DEVICES AND DOMAINS BASED ON CONDITIONAL ENCRYPTION OF CONTENT KEY DEPENDING ON USAGE STATE
摘要 A system and method is disclosed for allowing content providers to protect against widespread copying of their content, while enabling them to give their customers more freedom in the way they use the content. In accordance with one embodiment, content providers identify their content as protected by watermarking the content. Consumers use compliant devices to access protected content. All of a user's compliant devices, or all of a family's devices, can be organized into an authorized domain. This authorized domain is used by content providers to create a logical boundary in which they can allow users increased freedom to use their content.
申请公布号 US2011040975(A1) 申请公布日期 2011.02.17
申请号 US20100908194 申请日期 2010.10.20
申请人 NOKIA CORPORATION 发明人 ALVE JUKKA;CHIU PETER K.;YAN ZHENG;HIETASARKA JUHA
分类号 H04L9/32;G06F12/14;G06F21/00;G11B20/00;H04H20/31;H04L9/00;H04L29/06;H04N5/913 主分类号 H04L9/32
代理机构 代理人
主权项
地址