The problem of synchronization of the whole system is solved through sync signal generator circuit applying phased-locked frequency multiplier;

并利用锁相环设计了同步信号发生器电路，解决了系统同步问题；

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This final signal, containing the color and intensity of each pixel in a set of rows, along with horizontal and vertical sync signals, is called a composite video signal .

这个包含了每一个像素的颜色和亮度信息以及同步信号的最终信号称为组合视频信号（composite video signal).

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Most will recall that COMPUTER graphic CARDS sometimes OUTPUT positive-going sync. Positive-going sync signal the DISPLAY that the graphics LINE rate has changed to a new format.

更多时候还需要计算机显卡产生一个正极性触发的同步信号，它会通知显示终端所显示的图像行频已经改变到一个新的格式了。

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