APPARATUS AND METHODS TO PROCESS VIDEO OR AUDIO
9/20/2011 12:00:00 AM
The presently claimed invention relates generally to video or audio data. One claim recites an apparatus. The apparatus includes an input to receive data associated with video or audio; a decoder to analyze the data associated with video or audio for a steganographic signal hidden therein, the steganographic signal hidden in data representing video picture elements or in data representing audio elements; an extractor to extract an identifier from the data associated with video or audio; a generator to provide a signal based at least in part on a result produced by said decoder and said extractor; and an output to output the signal. Of course, other combinations are provided and claimed as well.