| 摘要 |
PURPOSE:To increase a switching speed by installing a controller in only a transmitting station and receiving station when interposing a repeater station between both the stations. CONSTITUTION:A signal from a repeater station 3 passes through the same path as the receiving terminal of the repeater station 3 at a receiving station 2 and is led out of a system from a telephone signal output terminal 19. A base-band pilot signal, on the other hand, is branched to a path to the output terminal 19 and detected by a base-band pilot signal detector 20, and consequently a signal showing that the system is normal is transmitted to a switching signal detector 22 in a transmitting station 1 via a control line 6. This detector 22 makes sure that the system from the receiving station 2 is normal, and then turns on a TV signal insertion switch 26 to send an inserted TV signal and a TV circuit pilot signal, generated by a TV circuit pilot signal generator 25, from a TV signal input terminal 24 to the transmitter 10 of a circuit 5. Thus, a switching speed is increased easily. |
