An improved method and apparatus for identifying and verifying the proper airing of television broadcast programs wherein from the television broadcast, it can be assured that the programs were televised and received properly and aired at the scheduled time. The invention utilizes prerecorded or live...http://www.google.fr/patents/US4639779?utm_source=gb-gplus-shareBrevet US4639779 - Method and apparatus for the automatic identification and verification of television broadcast programs
Method and apparatus for the automatic identification and verification of ...
