Contents server, contents receiving apparatus and network...

Details Contents server, contents receiving apparatus and network... Contents server, contents receiving apparatus and network...

2008-08-19

2010-06-29

Moise, Emmanuel L (Department: 2437)

Information security

Prevention of unauthorized use of data including prevention...

Copy detection

C726S026000, C713S176000

Reexamination Certificate

active

07748051

ABSTRACT:
Method and system for embedding a unique and different digital watermark in digital contents for each access without increasing the overhear or load at the contents server. The contents server has a digital watermark-embedded contents storage unit for storing a plurality of digital contents where a different digital watermark is embedded, and a fingerprint performing unit for, adding to the digital contents the information specified using a bit row that is formed by a digital watermark being embedded for each part of the digital contents.

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