| 摘要 |
PROBLEM TO BE SOLVED: To simply execute the processing of the transmission, recording, reproduction, etc., of each video signal by realizing the mixing processing and the demodulating processing of plural gradation video signal by simple constitution and at a low cost. SOLUTION: Gradation video signals IA to IC generated by monochromatic cameras 1A to 1C are respectively inputted to each input terminal of the encoder circuit 2 of an NTSC standard. Within the circuit 2, the respective signals IA to IC are handles as respective primary color signals R, G and B, the respective signals are modulated and then signal components after modulating processing are multiplexed to generate a composite video signal. This composite video signal is inputted to a decoder circuit 3 of an NTSC standard through a transmission route L to be demodulated to the original signals IA, to IC and then respectively outputted to monitors 4A to 4C. |
