| 摘要 |
PURPOSE:To enable to transmit the data having much information amount, by assigning one cycle of commercial frequency to the signal time of each transmitter, sequentially operating each transmitter based on the synchronizing signal to use a number of transmitters. CONSTITUTION:Based on the synchronizing signal superimposed on the commercial power supply, the transmitters 5-1,5-2...5-n having the period equal to the number of cycles of commercial power supply corresponding to the number of transmitters, superimpose the high frequency pulse signal on the commercial AC power supply in one period of the commercial AC power supply sequentially assigned. Further, the selective reception of the high frequency pulse signal performs data transmission to enable the data transmission having much information amount through the use of a number of transmitters. |
