(57) ABSTRACT A watermark System includes an embedder, detector, and reader. The
watermark embedder encodes a watermark Sig nal in a host signal to create a combined …

3 569 619 A 3/1971 Simjian...................... 235/380 Watermarks transform Video Objects into
“Watermark 3: 665j162 A 5/1972 Yamamoto et a1_ _______ __ 235/380 enabled” video …

(54) METHOD, APPARATUS AND PROGRAMS 4,284,846 A 8/1981 Marley FOR
GENERATING AND UTILIZING 4,432,096 A 2/1984 Bunge CONTENT SIGNATURES …

A watermark can be viewed as an information Signal that is embedded in a host Signal,
Such as an image, audio, or Some other media content. Watermarking Systems based on …

The present invention includes methods and apparatus for increasing the ef? ciency of
remote service transactions. According to the present invention, a smart card includes optics …

We provide a system for issuing identification documents to a plurality of individuals,
comprising a first database, a first server, and a workstation. The first database stores a …

4.252. 995 4,262,329 4,296,326 4,297.729 4,313,197 4,367.488 4,379,947 4,380,027
4,389,671 4,395,600 4,416,001 4,423,415 4.425, 642 4,476,468 4,523,508 4,528,588 …

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

Related US Application Data Continuation-in-part of application No. 09/769,017, filed on
Jan. 24, 2001, now Pat. No. 6,829,368, and a continuation-in-part of application No …

The following Sections describe applications for integrat ing watermarks in multimedia data.
In general, these appli cations exploit Some level of interaction between water marks and/or …