System and method for digitally watermarking data. A preferred embodiment comprises a quantizer to limit a data value provided by a signal input to a set of values, a rounder unit coupled to the quantizer, a control unit coupled to the rounder unit and to a watermark input, and a multiplexer having a...http://www.google.fr/patents/US7970165?utm_source=gb-gplus-shareBrevet US7970165 - System and method for watermarking data
