6,353,672 B1 3, 2002 Rhoads 6.829, 368 B2 12/2004 Meyer et al. 6,363,159 B1 3, 2002
Rhoads 6,850,626 B2 2/2005 Rhoads et al. 6,381,341 B1 4/2002 Rhoads 6,879,701 B1 …

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application program - Google Patents US8769297B2 - Method for increasing the functionality of …

2008-11-05 Assigned to DIGIMARC CORPORATION (FORMERLY DMRC CORPORATION)
reassignment DIGIMARC CORPORATION (FORMERLY DMRC CORPORATION) …

This disclosure describes methods for using embedded auxiliary signals in documents for
copy detection and other applications. In on application, the auxiliary signal is formed as an …

The present disclosure relates generally to identification documents and related methods
and apparatus. One claim recites a method to determine whether to authenticate an …

The following detailed description is grouped into four main sections. The grouping is not
meant to limit the scope of the present invention, and is merely provided for the readers …

(*) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35
OTHER PUBLICATIONS U~ S~ C-15403) by 134 day5~ Macq, et a1.,“Cryptology for Digital …

In one arrangement, a first user sends information from a portable device and receives a
response that depends, at least in part, on the location of a second user's portable device …

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US8131760B2 - Using object identifiers with content distribution - Google Patents Using …

The present claims relate generally to Steganographically encoding and decoding of audio
signals. One claim recites a method of embedding auxiliary information in data repre senting …