The paper mainly deals with the approaches of expanding the oscilloscope functions with analog switches, and the ways in upgrading the single signal oscilloscope into multi-signal oscilloscope.
本文主要说明如何用模拟开关扩展示波器的功能，及将单踪示波器变为多踪示波器。
This paper bases author's several years experience in the DSO development of software, mainly introduces waveform display mode and waveform graphics of the digitizing oscilloscope.
本文作者根据多年从事示波器软件经验，简单介绍示波器波形的显示方式和波形做图方法。
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