本文的研究工作主要围绕着读码器的设计与实现展开，文中阐述了读码器硬件部分的设计；
The primary work of this thesis is about designing and realization of Preventing-Forgery Code Reader . It includes the hardware system designing ;
读码器手柄注射模设计
Design of an injection mold for the handle of ISBN reader Reading people
读码器