【摘要】 介绍了一种由光笔和８０Ｃ３１单片机构成的条形码便携式记录器。简要说明了光笔及记录器的基本结构。介绍了记录器使用的３９码及译码方法。光笔，条形码，记录器，单片机。更多还原

【Abstract】 A new portable barcode recorder using the techniques of light pen and 80C 31 single-chip microcomputer is introduced in the paper. The structures of the light pen and the recorder are described briefly. The methods of encoding and decoding of the used 39 code by the recorder are also described.更多还原