图文电视原理简介

The Introduction of the Teletext Principle

本文主要介绍了图文电视系统的基本概念及其工作原理。图文电视是一种新型的电视多工数据广播方式，文中将中文图文电视（CCST）系统规范中的有关技术规定做了简单明了的解释。

In this article we present the elementary conception of the teletext system and it's basic working principle.Teletext is a new mode of TV-multitask data broadcasting. This article gives a brief introduction of the related technical formulathe in Chinese Character Teletext System (CCST).