Digital watermarks as a gateway and control mechanism
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United States of America Patent
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Jun 21, 2011
Grant Date -
Apr 3, 2008
app pub date -
Nov 20, 2007
filing date -
Feb 19, 2000
priority date (Note) -
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Abstract
An electronic system where messages include information carried by digital watermarks. The digital watermarks are used to control the transmission and/or receipt of messages including images or audio transmitted over the system. The system prevents the accidental dissemination of information to unauthorized receivers. Furthermore, while no security system is fool-proof, the system helps guards against the intentional, but unauthorized, dissemination of information to unauthorized receivers.
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