A spread code string containing a plurality of chips per interval in one horizontal interval or containing a plurality of chips per interval in one vertical interval is generated synchronously with the vertical sync signal at the generation star timing having a period of one vertical period or having...http://www.google.fr/patents/US6253020?utm_source=gb-gplus-shareBrevet US6253020 - Video signal transmission method superimposed information transmission method video signal output device video signal reception device and video signal recording medium
Video signal transmission method superimposed information transmission ...
