| 摘要 |
PROBLEM TO BE SOLVED: To reduce a frequency band occupied by a radio transmission television camera monitoring system by using a frequency required for transmitting a video image by camera side transmitters. SOLUTION: In this system consisting of plural video signal transmitters and a single receiver receiving the video signal, the frequency band for transmitting a video signal used by plural transmitters 2-1, 2-2 is used in common, a receiver 3 sends an identification signal to select the transmitter, the transmitters 2-1, 2-2 discriminate the identification signal and only the selected one transmitter transmits the video signal. Thus, the receiver 3 receives the signal with one frequency from plural transmitters 2-1, 2-2 so that the frequency band used in the system can be decreased.
|
