| 摘要 |
<p>A multi-channel automatic transmission system (1) replaces the functions previously performed in a network studio (100) by a number of single channel automatic transmission systems (111, 112, 113 ...) corresponding to the number of regional transmitters (101, 102, 103 ...). Outputs from either a computer (6) or a manual input device (13) are selectable by a switch (14) to operate the system (1) in accordance with a stored first selection of commercial messages, a manually determined second selection of commercial messages, or a manually altered selection. The duration and commencement of the commercial break is the same throughout the network but the number, duration and sequence of the commercial messages transmitted by each regional transmitter can be different. <IMAGE></p> |
