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引言将数字化技术引入到彩电技术中来,在国际上已经成为新一代彩电发展的方向。清华大学电子工程系在国产化彩电Mμ二片机的基础上开发一种彩色电视数字集成画中画、多画面处理器(QHPIP-1)。该处理器可以附加在普通模拟彩电内,使其增加画中画功能,成为较高档次的新型彩电,它具有成本低、功能多、主机电路改动少的优点。本文将重点介绍该处理器的设计考虑、性能及主要技术参数,并对主要电路原理进行分析,最后给出系统控制软件的主要流程图。一、方案设计、电路框图
Introduction Digital technology into the color TV technology, in the international community has become a new generation of color TV development. Department of Electronic Engineering, Tsinghua University developed a color TV digital integrated picture-in-picture, multi-picture processor (QHPIP-1) based on the domestic color TV Mμ two-chip computer. The processor can be attached to the ordinary analog color TV, so that it increases the picture-in-picture function, a higher level of new color TV, which has the advantages of low cost, multi-function, less host circuit changes. This article will focus on the processor design considerations, performance and the main technical parameters, and the main circuit analysis, and finally the main flow chart of the system control software. First, the program design, circuit diagram