【摘要】 设计了一个基于数字处理芯片的新型视频字符混合器,详细的论述了系统的构成及工作原理。与传统基于中小规模集成电路设计的数字视频混合器相比,该设计有效提高了系统的集成度和字符的稳定性,杜绝了字符漂移现象,降低了成本,是实现视频字符叠加的一种较好的选择方案。更多还原

【Abstract】 This paper designs a new-type video characters mixing device based on digital processing chip, and introduces the composition and operation principle of the system in detail. Compared with the traditional video signal mixer on the basis of small-scale integrated circuit, this design effectively improves the systematic integration level and the stability of the characters. Furthermore, it also eliminates the phenomenon of characters drift, and reduces the cost. It is a better choice of the video signal mixer.更多还原