osd system structure osd系统结构
OSD File System 文件系统
osd on line system driver 联机系统驱动器
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In the paper, a design of OSD system based on video format convert chip is introduced, including the realization of I2C communication, data-pass and overlap of image and video.
本文设计并实现了基于视频格式转换芯片的OSD系统，实现包括I2C串行通信，数据通路和OSD图像与视频叠加的功能。
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