for tracking an object in a video and linking information theretoUS7805764 *Mar 31, 2000Sep 28, 2010Doug Carson & Associates, Inc.Sequencing data blocks to provide hidden data on a recording mediumUS7806322Dec 19, 2006Oct 5, 2010Digimarc CorporationAuthentication methods and systems including embedded auxiliary dataUS7809152 *May 14, 2003Oct 5, 2010Schreiner Group Gmbh & Co.