Content distribution system, content distribution method and...

Details Content distribution system, content distribution method and... Content distribution system, content distribution method and...

2008-05-06

2008-05-06

Smithers, Matthew (Department: 2137)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S168000, C726S032000

Reexamination Certificate

active

07370205

ABSTRACT:
A content distribution system, a content distribution method and a terminal device are capable of effectively preventing disadvantages of users who formally bought content. In the content system in which a distribution server and a terminal device are connected through a network, even content is taken out from a storage means of the terminal device to the outside later, the content always carries user identification information, so that even the user having the content distributes the content over the network illegally, the distributor of the content can be found with sure.

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Fumitada Takahashi, “Digital Signal Processing: Multimedia Era is Protected by Watermark, First part Major candidate for copyright protection technology Brilliant move for the protection against illegal use of copy right products Copy is restrained by watermark,” Nikkei Electronics No. 683, Nikkei BP, Feb. 24, 1997, 99-107.

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