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。
Light pen: Light-sensitive stylus used to edit on a VDU (visual display unit).
光笔：在直观显示器上作编辑用的光敏尖笔。
The utility model relates to an ovulation test pen capable of display images and adjusting a light source, which belongs to the field of biomedical photoelectric detection technique.
本实用新型涉及一种可调节光源图像显示型排卵测试笔，属于生物医学光电检测技术领域。
The utility model relates to an ovulation test pen capable of display images and adjusting a light source, which belongs to the field of biomedical photoelectric detection technique.
本实用新型涉及一种可调节光源图像显示型排卵测试笔，属于生物医学光电检测技术领域。
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