Method for transmitting data on viewable portion of a video signal

摘要: A method of encoding data in the visible portion a transmitted video signal without degrading display received signal, and for decoding signal. Each group bits to be transmitted, referred symbol, is associated with one number longer predetermined sequences chips. chip sequence divided into multiplicity lines chips, each line chips together its inverse are embedded, pairwise fashion, respective pairs scans prior transmission. Received operated upon detect they represent, correlated detected derive correlation magnitude. The largest magnitude selected as whose symbol was transmitted.