| 摘要 |
PROBLEM TO BE SOLVED: To realize an effective use of a frequency band and a reduction of a cost when a plurality of broadcasting signals are retransmitted. SOLUTION: A reception device 4 transmits a control signal of 2.4 GHz to a retransmission device 2 from an antenna 46 based on a selection signal from a CS tuner 40. The retransmission device 2 receives the control signal by an antenna 22 to decode the selection signal. The retransmission device 2 converts one selected from J3-IF signal and J4-IP signal provided to an input terminal 6 or 8 depending on a state of a decoded selection signal into a retransmission signal of millimeterwave, and transmits the retransmission signal from an antenna 18 to the reception device 4. The reception device 4 receives the retransmission signal by an antenna 32, and performs a frequency conversion into the J3-IF signal or J4-IF signal to be provided to the CS tuner 40 from an output terminal 38. COPYRIGHT: (C)2007,JPO&INPIT |
