Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2008-08-27
2010-11-30
Jung, David Y (Department: 2431)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S168000, C713S150000
Reexamination Certificate
active
07844821
ABSTRACT:
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.
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IEEE Xplore# Search Results, 4 pages.
Alve Jukka
Chiu Peter K.
Hietasarka Juha
Yan Zheng
Jung David Y
Locke Lord Bissell & Liddell LLP
Nokia Corporation
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