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一、何谓图文电视? 图文电视是将电视机的数据文字处理技术与电视广播技术相结合而形成的一种广播形式。图文电视能在不影响正常电视节目播出的同时,把经过数字编码处理的图文电视节目,进行调制广播传输,从而在不增加电视广播频道和发射设备的情况下,开通了一个覆盖面广、传输成本低的开放型公众信息传输网,在接收时,需用图文解码附加器或带图文解码功能的彩电才能收看(目前市场上有些进口的图文电视只能接收英文图文而不能显示接收中文图文信息,请消费者购买时注意)。
First, what is Teletext? Teletext is a form of broadcasting that combines the data word processing technology of television sets with television broadcasting technologies. Teletext can modulate the broadcast transmission of the digitally encoded teletext without affecting the normal broadcast of the television program, thereby opening up a wide coverage without increasing the number of television broadcast channels and transmitting equipment , Low cost transmission of open-type public information transmission network, the reception, the need to use graphic decoders or audio and video decoding capabilities with the TV to watch (some imported teletext on the market can only receive English graphic and Can not display Chinese graphic information received, please pay attention when consumers purchase).