The disclosure relates to processing content with watermarks to generate watermarked
versions. In some aspects, each version may be different. Groups of fragments may be …

5,613,004 A 3/1997 Cooperman et al. ing to the watermarks in the copy of the digital asset
are 5,687,236 A 1 1/1997 Moskowitz et al. generated. The copy of the digital asset and the …

The disclosure describes systems for creating and authenti cating printed objects using
authentication and copy detec tion Watermarks. For example, one veri? cation system …

Digital watermarks are embedded and decoded from host media signals like images and
audio using encryption keys. The encryption keys are used to encrypt different compo nents …

(65) Prior Publication Data* cited by examiner US 2004/O 103293 A1 May 27, 2004 Primary
Examiner Matthew B Smithers Assistant Examiner Courtney D Fields Related US …

A system and method are described for inserting a watermark in encoded content, including
receiving encoded content, receiving at least one pre-processed watermark unit and …

US7164780B2 - Digital watermarking apparatus and methods - Google Patents
US7164780B2 - Digital watermarking apparatus and methods - Google Patents Digital …

US7460684B2 - Method and apparatus for embedding watermarks - Google Patents
US7460684B2 - Method and apparatus for embedding watermarks - Google Patents Method and …

Methods, devices and computer program products for enabling secure and efficient
extraction of embedded water marks from digital host content are provided. Upon the recep …

Methods and devices are provided for embedding auxiliary information in a host content in a
manner that reduces memory, bandwidth and computational complexity of the embedding …