| 摘要 |
PURPOSE:To eliminate the need to make a transmission signal to a special signal or complicate code and also eliminate the need to use special expensive parts for reception by transferring the signal on interactive basis. CONSTITUTION:Two pulses are sent out of a transmitter 1 at time points t1 and t2 and a receiver 2 exits from a stand-by state. The receiver 2 sends a transmit pulse 11 at time t3. A sender 4 sends an answer pulse 12 at time t4. Then, the receiver confirms whether or not extra visual rays arrive until time t4 and then transmits a pulse 13 again. On the other hand, the sensor 4 sends an answer pulse 14 at time t6. The receiver 2 monitors an external noise similarly until time t7 and changes the state of the receiver 2 at time t8; and the sender informs the sender 4 that it is ready to receive a control signal and then receives the control signal 16 from the sender 4. |
