Various improvements to digital watermarking are disclosed. For example, a digitally watermarked object can steganographically convey a payload that includes computer instructions (e.g., JAVA, ActiveX, or HTML) that—when decoded—control some manner of operation of an associated instruction processor....http://www.google.fr/patents/US7760902?utm_source=gb-gplus-shareBrevet US7760902 - Content objects with computer instructions steganographically encoded therein, and associated methods
Content objects with computer instructions steganographically encoded ...
