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介绍一种可组合多种机型一体化编辑切换控制器，可实现二路输入，二路输出互相交叉切换，能任意加入或退出数字特技及字幕机，并给出具体设计原理及实现电路。
This paper presents an integrated editing and switching controller that can be combined with a variety of models to realize two-way input and two-way output switching mutually. It can join or exit digital special effects and subtitles arbitrarily, and gives the specific design principle and implementation circuit.