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关于电视跳频加扰的设想□曾昭平（湖南省洞口县广播电视局４２２３００）把需要加扰节目的视频信号在两个或多个载波上换来换去进行调制而形面的加扰方式，就是跳频加扰。下面以两个节目Ａ和Ｂ为例进行说明，电路框图如图１。为了使图像连贯以及不产生跳动现象，电子转换...
On the frequency hopping scrambling TV □ Zeng Zhaoping (Hunan Province Dongkou County Bureau of Radio and Television 422300) the video signal to be scrambled programs in two or more carriers in exchange for the modulation of the surface scrambling mode , Is frequency hopping scrambling. The following two shows A and B as an example to illustrate the circuit block diagram in Figure 1. In order to make the image coherent and does not produce beating phenomenon, electronic conversion ...