一、引言汉字信息输入设备,迄今为止,被采用过的有键盘、光笔、传真、电子照排、电子摄象、自动识别以及声音输入等,其中主要是使用键盘。键盘从规模上可分为大、中、小三种;从电气工作方式上可分为:簧片、电容、电感、光敏、霍尔效应、压电橡胶等多种类型。按操作方式可分为:手按式和笔触式,但一般还是以手按式用起来方便,灵活。在我国,汉字以拼音和拉丁字母编码的各种方案大多利用电传、控打(44～48)或 I. INTRODUCTION The Chinese character information input device has hitherto been used in the fields of keyboard, light pen, fax, electronic photo-editing, electronic camera, automatic identification and voice input, among which the keyboard is mainly used. Keyboard from the size can be divided into large, medium and small three; from the electrical work can be divided into: Reed, capacitors, inductors, photosensitive, Hall effect, piezoelectric rubber and other types. According to the mode of operation can be divided into: hand-type and pen-type, but in general or by hand-type with convenient and flexible. In our country, most of the schemes for pinyin and Latin alphabet encoding of Chinese characters use telex, control (44 ~ 48) or