摘要
通常情况下,由于计算机在字符显示状态下在内存中存在一个显示代码缓存区,此缓存区存放屏幕上显示内容的ASCⅡ码;因此在LED显示应用上,尤其在需要将控制机显示内容在另一区域的LED屏幕重现时所需要的数据传输方面上,上述代码缓存区具有重要的作用.但是当我们使用象pc-1500这样的机器作LED显示系统的控制机时,由于它无上述的系统有规律的顺序显示代码缓存区,同时鉴于LED与主控机点阵的不同及需传送的数据量等问题,我们在传输屏幕内容上存在一定的困难.本文提出并采用一种布尔变换及解变换方法来解决这个问题.
Generally, the computer display code buffer memory is served to store the ASC Ⅱ codes of the information which would be appeared on the screen of the computer in cha racier method. And the character generator convert ASC Ⅱ codes which are put out from display code buffer memory to character dot matrice and display them on the appointed location of the screen while the display output is running. In the LEDs display application, the display code buffer memory is essential for us to realize the data transmission, which perform what brings the display information into correspondence with that of the remote subsystem of LEDs display panel simultaneously. While we utilize pc-1500 as the control computer, as its irregular display code buffer memory and the difference of dot matrix between the LEDs panel and control computer screen, so we have some problems in the job. This paper gives a method of Boolean transformation and inverse transformation for us to solve them,and the performance of the new method is very well.
出处
《发光学报》
EI
CAS
CSCD
北大核心
1996年第3期251-256,共6页
Chinese Journal of Luminescence
关键词
布尔变换
LED显示
Hash码
平板显示
transformation of Boolean Algebra, LEDs display, Hash codes, logical calculation method