| 摘要 |
PURPOSE:To attain stable operation even when there is an error in a gate timing at a converting section of transmission side even if more or less fluctuation exists in a subcarrier by using a single frequency to call a receiver and transmitting a data so as to constitute economically an individual system with a simple device. CONSTITUTION:A gate output timing constituting ID numbers [2.1.5] and a data [0.1] is shown in figure 3 and a gate timing 0, gate timings 1, 2, 3, and gate timings 4, 5 corresponding to each of a preamble signal 12, an ID number signal 13 and a data signal 14 shown in figure 1 are shown. In transmitting a data 01 to an individual selection receiver of the ID number No. 215, the ID number No. 215 and the data 01 are inputted to a call operating section 41. A transmission side control section 42 receives an output of a clock section 43 and an output of the call operating section 41 and transmits a signal shown in figure 3 to a converting section 44. The converting section 44 applies to a transmission section 46 only when a gate of an output of the control section 42 is opened and the transmission section 46 emittes a radio wave modulated by the said signal from an antenna 47. |
