幅面可调多画面同屏显示器的研制

Study of one screen displayer with the adjustable size and the multi-picture

基于数字电视的原理，讨论了多画面同屏显示处理的技术基础；重点研究了三画面同屏显示器的系统设计和实现方法．采用自行研制的双场制单场型存贮方式，解决了读写不匹配等影响图像质量的问题，同时缓解了对器件的高速要求，使控制电路变得简单而可靠．

Based on the theory of DTV,the technological foundation for the multi--picture dis play is introduced;the system design for three--picture display and itS achievement are discussed in derail. Our technique that two grouPS of REM work in double shiftS of 2 fieldsavoides some problems caused by the video errors between a big picture and a small picture and the different rates for reading and writing,the high working speed is not necessityfor and the control circuit is simplified.