| 摘要 |
PURPOSE:To perform transmission among transmission modules widely distributed by means of a transmission module of a small output, by operating the transmission module also as a repeater. CONSTITUTION:Transmission modules 1-1-5-6 located in houses are respectively connected to a power line, which is used as a transmission line. When the transmission modules 1-1-5-6 receive a signal of prescribed data format, they transmit the same data sequentially in the succeeding timing. The data transmitted at the 1st transmission module 1-1 is transmitted at the modules 1-1, 1-2, 2-1 and 2-2 in the succeeding timing, the transmission output is increased to attain a long-distance transmission. In the next timing, further more transmission modules perform transmission, resulting in that all the modules perform the transmission finally. Thus, the output of each transmission module can not be made larger. |
