| 摘要 |
PURPOSE:To prevent the interference of electromagnetic waves and to enable the picture transmission to many slave stations with a less number of frequencies, by time sharing for a fixed time for the transmission time of slave station with the control circuit of the master station. CONSTITUTION:When an arbitrary slave station 2k is selected at the master station 1, the interlacing operation from the slave station 2a to the station 2k, for example, the control signal flows to the switcher 12k of the slave station 2k, and only high frequency output of the slave station 2k is transmitted to the master station 1 with the state of ON. With the reset operation at the master station 1, the switching unit 12k of the slave station 2k is OFF, and control signal flows to the switching unit 12(k+1) of the slave station 2(k+1) automatically at the same time and only the high frequency output of the slave station 2(k+1) is transmitted to the master station. The master station 1 receives the electromagnetic waves from the slave station at the antennas 6a-6n, and picture signal is made at the picture receivers 7a-7n for the demodulation and displayed on the TV monitors 8a-8n. |
