The design scheme for display operating, the application of memory technology, the design ideas for CRT drive circuit and light pen input system have been given.
给出了系统设计方案，其存储器技术的应用以及CRT驱动电路与光笔输入系统设计思想。
A system of a specially designed terminal and light pen. By pointing the pen to the desired character position, data of the character is selected by the system.
一种由特殊构造的终端和一支光笔组成的系统。在屏幕上将笔尖点向期望的字符位置，就能选择那个位置上的字符数据。
The 3d vision coordinates measurement system using Light Pen is proposed on the new technique.
本文正是以这项新兴技术为基础构建光笔三维视觉坐标测量系统。
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