Applications of watermark payload
Publication Date: 2002-Jan-24
The IP.com Prior Art Database
Watermarks are generally embedded in multimedia contents at the originating end ofadistribution chain to identify ownership of the contents (primary watermarks). Watermark embedding by consumer equipment is also known. Home recorders, for example, may embed a watermark in recorded material so as to identify it as being a copy and prevent additional copies to being made. The watermark may be embedded in place of the primary watermark or added to the content as a secondary watermark.
It is now proposed to give the user of consumer equipment the facility to determine (part of) the watermark payload. A possible application thereofis parental control. When recording a movie, the user may deelde whether or not the recorded material may be played back by his children.