Method of embedding watermarks in a signal encoded by an encoder having a feedback loop, for example, a sigma-delta modulator (21,22,23). A digital watermark pattern (w) is embedded in the signal (z) by modifying selected samples (for example, replacing every 100th bit) of the encoded signal (y) by samples...http://www.google.fr/patents/US6157330?utm_source=gb-gplus-shareBrevet US6157330 - Embedding supplemental data in an encoded signal, such as audio / video watermarks
Embedding supplemental data in an encoded signal, such as audio / video ...
