Patent ID: 7369678
Filing Date: 2008-05-06
Classification: B42D,G06F,G06K,G06Q,G06T,G07C,G07D,G07F,G10L,G11B,H04H,H04L,H04N

Abstract:
1. A watermark decoding method comprising: receiving a media signal encoded with a multi-bit message, the media signal comprising a plurality of portions; synchronizing at least one portion of the media signal based at least in part on a component steganographically hidden therein; analyzing a first portion of a media signal to estimate a first instance of a multi-bit message steganographically hidden therein; analyzing at least a second portion of the media signal to estimate a second instance of the multi-bit message steganographically hidden therein; combining the estimate of the first instance of the plural-bit message and the estimate of the second instance of the multi-bit message; and decoding the multi-bit message from the combined estimates.