介绍了MB90076B的性能特点及其在视频字符叠加中的应用；
This paper introduces the features of MB90076B and it's application in video Chinese character superimposing.
本文运用视频字符叠加和红外无线传输技术，设计了一个激光测距仪辅助系统。
By using technique of character-overlapping and the theory of infrared wireless transmission, a system that can enhance the Laser Range Finder system's function is developed in this dissertation.
基于MB90092芯片设计了视频字符叠加系统，以此为基础论述了MB90092的软件设计方法。
A video character superimposition system is designed based on the IC chip MB90092, and the design of the software for MB90092 is discussed.
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