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

(57) ABSTRACT A method for disseminating emergency noti? cation content from an
emergency originating source. The method com prising: delivering the emergency noti …

US6332193B1 - Method and apparatus for securely transmitting and authenticating biometric
data over a network - Google Patents US6332193B1 - Method and apparatus for securely …

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 …

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 …

US6785815B1 - Methods and systems for encoding and protecting data using digital signature
and watermarking techniques - Google Patents US6785815B1 - Methods and systems for …

(54) METHODS, SYSTEMS AND DEVICES FOR 5,319,735 A 6/1994 Preuss et al. PACKET
WATERMARKING AND EFFICIENT 5,341,429 A 8/1994 Stringer et al. PROVISIONING OF …

(57) ABSTRACT A watermark detector maps target media data into a log polar coordinate
System and correlates the target media with a detection watermark to compute orientation …

54 METHOD AND APPARATUS FOR FOREIGN PATENT DOCUMENTS EMBEDDING
DATA, INCLUDING 581317A2 2/1994 European Pat. Off GO7D 7/OO YSTEMARKs, IN …

An MPEG2 moving picture and encoding/decoding System to provide digital copy protection
of digital moving picture data. The MPEG2 moving picture encoder discrete cosine …