A method for generating commercial information using a data recording device can provide commercial sponsors with feedback regarding the effectiveness of their commercials. According to the method, program data including a commercial is recorded. The recorded program data including the commercial is...http://www.google.fr/patents/US7058963?utm_source=gb-gplus-shareBrevet US7058963 - Method and apparatus for generating commercial viewing/listening information
Method and apparatus for generating commercial viewing/listening information
