键控技术及其在电视播出上的应用

The Brief Analysis of the Key Control and Its Application in the Television

叙述键控技术的原理及其在电视播出上的应用,从技术和安全播出角度讨论键控技术应用的必要性、使用场合、实用电路连接方法和应注意的一些事项。

This article detailedly narrated the principle of the key control technology and its application in the television, discussed its necessary and situation in television system, some items from the technical angle and the practical electric circuit connection method and something should be paid attention to.