| 摘要 |
<p>The units (1-5) are controlled by every signal in the channel (6) and by time intervals allocated for each sending unit (1-4) between a fixed time and the readiness to send of the sending units; the above fixed time is determined by the endof a signal in the channel; each signals sending unit (1-4) has a signal recognition means (M1-M4) which at the end of a signal in the channel (6) start timers (Z1-Z4) provided in each sending unit (1-47), and switch them off when a signal appears; sending units (1-4) have further means which, when the time interval fixed for each sending unit by the timers (Z1-Z4) has elapsed, connect the corresponding unit to the channel.</p> |
