Image analysis – Applications
Reexamination Certificate
2007-05-29
2007-05-29
Do, Anh Hong (Department: 2624)
Image analysis
Applications
C382S233000, C382S240000
Reexamination Certificate
active
10277617
ABSTRACT:
A method for tracking media signals in multimedia content is provided by uniquely identifying the multimedia content with a digital watermark identifier. A video channel is preferably embedded with a first watermark identifier. The first identifier uniquely identifies the multimedia content or the content family. A second digital watermark is embedded in an audio channel of the multimedia content. The second digital watermark uniquely identifies a user or user device. When the multimedia content is found in an unauthorized or unexpected channel, the content can be traced back to its misappropriating source via the user identifier.
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Bradley Brett Alan
Hannigan Brett T.
Levy Kenneth L.
Rhoads Geoffrey B.
Digimarc Corporation
Do Anh Hong
LandOfFree
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