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提出一种用CPLD复杂可编程器件实现视频信号叠加图形和标示文字的新方法 ,详细介绍了其原理和设计 ,指出了应用中注意的一些问题
A new method of using CPLD complex programmable device to superimpose and mark video signals is presented. Its principle and design are introduced in detail, and some problems that are noticed in application are pointed out