In order to delete commercial messages during the viewing and/or video tape recording of broadcast television signals a control circuit is disclosed for producing a commercial editing control signal at the beginning of one or more television commercial messages, which signal continues for the duration...http://www.google.fr/patents/US4390904?utm_source=gb-gplus-shareBrevet US4390904 - Automatic circuit and method for editing commercial messages from television signals
Automatic circuit and method for editing commercial messages from television ...
