| 摘要 |
<P>PROBLEM TO BE SOLVED: To relay a specific low-power radio signal using a community reception system. <P>SOLUTION: A relay for reception 2a is connected to one terminal unit existing in the vicinity of a specific low-power radio transmitter 4, out of a plurality of terminal units 20 provided in transmission lines 16 and 18 of a community reception system 8, and a transmitted electric wave from the specific low-power radio transmitter 4 is received and the received electric wave is frequency-converted into a high frequency signal having such a frequency that can be transmitted by the transmission line 16, and the high frequency signal is supplied to the transmission line 16. A repeater for transmission 2b connected to one terminal unit existing in the vicinity of a specific low-power radio receiver 6, out of the plurality of terminal units 20 receives the high frequency signal transmitted by the transmission lines 16 and 18 and converts the high frequency signal to an electric wave having the same frequency as the electric wave transmitted from the specific low-power radio transmitter and transmits the converted electric wave. <P>COPYRIGHT: (C)2011,JPO&INPIT |
