A system and a method for bidirectional transmission/reception in which the information aired in e.g., television broadcast can be received with a high probability to permit a sponsor to readily comprehend the state of reception. A collective information generating system 5 includes temporary reply recovery...http://www.google.fr/patents/US6678890?utm_source=gb-gplus-shareBrevet US6678890 - Bidirectional transmission/reception system and method and transmission apparatus
Bidirectional transmission/reception system and method and transmission ...