Digital watermarks as a gateway and control mechanism

Details Digital watermarks as a gateway and control mechanism Digital watermarks as a gateway and control mechanism

2007-11-20

2007-11-20

Bella, Matthew C. (Department: 2624)

Image analysis

Applications

C715S751000, C715S752000, C713S176000

Reexamination Certificate

active

09784391

ABSTRACT:
An electronic e-mail system where messages contain information carried by digital watermarks. The digital watermarks are used to control the transmission and/or receipt of documents transmitted over system. The invention can be used to prevent the accidental dissemination of information to unauthorized receivers. Furthermore, while no security system is fool-proof, the present invention helps guards against the intentional, but unauthorized, dissemination of confidential information to unauthorized receivers.

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