| 摘要 |
<p>An interactive television broadcast system comprises a source (1-8) for broadcasting a plurality of television channels and data. A plurality of remote receiving units (9), each include a tuner (10) to enable the unit to be tuned to receive a selected TV channel broadcast by the source, a processor (14) responsive to data received from the source to determine the channel to which the unit is tuned, and a transmitter (19) for sending information relating to the channel to which the unit is tuned to a common data collector. <IMAGE></p> |
