A method and/or apparatus for embedding and detecting a watermark among a plurality of frames of data is disclosed, where the watermark is correlated with a plurality of noise blocks, and the noise blocks are summed over a plurality of respective video frames. Each noise block is preferably subjected...http://www.google.de/patents/US7433489?utm_source=gb-gplus-sharePatent US7433489 - Method to ensure temporal synchronization and reduce complexity in the detection of temporal watermarks
