An apparatus for adding a watermark to a moving image as it is displayed comprises a watermark generator in which data representing a watermark is generated. The watermark contains at least one of location data and time data pertaining to the displaying of the moving image. The location and time data...http://www.google.fr/patents/US6996248?utm_source=gb-gplus-shareBrevet US6996248 - Apparatus and method for watermarking a digital image
Apparatus and method for watermarking a digital image
