| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent transmission pulses from overlapping and secure stable operation when a pulse width of a first transmission pulse is varied optionally in a synchronous transmitting apparatus which transmits a second transmission pulse with a predetermined time delay from the first transmission pulse. SOLUTION: A first transmission pulse 103a is detected at a wave detector 9, and a down counter 10 is started with a detection output 104 to count down. An initial value of the counter at this time corresponds to a value of a delay time of a second transmission pulse 103b from the first transmission pulse 103a. Therefore, once the initial value is set to be a value larger than a pulse width of the first transmission pulse 103a, both pulses never overlap. A transmission timing for the second transmission pulse is determined at a timing 105 when the down counter 10 shows '0', thereby the problems can be solved.</p> |
