电视字符叠加器设计

Design of character generator for TV

介绍了电视字符叠加器的用途和设计要求,描述了系统组成及实现方法,包括硬件电路、单片机软件和微机软件,阐述了点阵式汉字在电视上的显示原理和实现方法,给出了微机与单片机的串行信令和系统运行结果。

The application and design requirement of a character generator for TV is introduced.The structure and imple-mentation of this system is described in detail,which includes the hardware,the software of the MPU and the software of the personal computer.The principle and implementation of Chinese characters displaying on TV in dot matrix is described.The communication singling between PC and the generator is described too.The outcome and improvement of this system is introduced finally.