| 摘要 |
Electronic control system for video cabins. This system is for the purpose of making it possible to select any of the multiple inputs to the system from one or more outputs, and is configured in such a way that the number of inputs and outputs is not rigidly defined; it consists basically of two printed-circuit boards, one for input 1 and the other for output 2 which will allow access to any of the inputs 3 as regards image and sound by means of a monitor 4 situated in each cabin. Both boards consist basically of video 5 and audio 6 multiplexers; the input board 1 also consisting of an integrated circuit 17 for audio switching, and a multiplier 18, the output board 2 being formed, as to essential elements, of a matrix switch for switching video and audio simultaneously. <IMAGE>
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