The paper introduces a digital decoder that may detects 64channel,for which EPROM is used as the key digital converter and BCD coder of sevensection characters display decoder.

• 介绍了一台能检测出64路站点编码的数字解码器，我们使用EPROM芯片作为关键“数码转换”手段，作为七段字符显示译码器的BCD编码器。