GJB289A显示总线故障分析与研究

针对外场某型飞机GJB289A显示总线各类故障高发、故障点查找困难问题,分析了其显示总线常见的故障及其故障原因,提出利用总线检测仪对总线网络进行信号衰减测试,可快速、准确地查找出显示总线存在的故障和缺陷,并结合外场典型故障案例进行分析研究,梳理出该类故障的普遍排查思路。

大屏幕显示系统的原理及其应用

介绍大屏幕显示系统的简单原理。

Design of FPD Video/Graph Conversion Card

To meet the demand of the display of color plasma display panel(PDP), a flat panel display (FPD) conversion card based on a monitor controller AL300 is designed in this paper. Different video sources, PAL/NTSC/SECAM, or different display modes (from VGA to SXGA) of PC graphic signals can be recognized automatically and digitized by this conversion card. Because the FPD supports only one fixed resolution (fixed display pixels),the video/graphic signal must be horizontally interpolated, vertically interpolated and timing adjusted for the whole picture fitting into the displayable region of the screen. Meanwhile, some control signals come into being.The whole process is controlled by a microprocessor with I 2C bus. This display conversion card exhibits very satisfying display effect and has been adopted by several companies.

可编程控制器在混凝土拖泵中的应用分析

随着科学技术的不断发展,可编程控制器在混凝土拖泵中的应用日益广泛,通过使用可编程控制器取代了过去繁琐的分离元件逻辑接线,有效保证了混凝土拖泵运行的可靠性。文章首先对MC6H/32可编程控制器进行了介绍,然后对MC6H/32可编程控制器在混凝土拖泵中的应用进行了探讨。

OmniBook 600充满魅力的亚笔记本机

首先,必须承认当HP的Omni-Book首次推出时很令人失望。但我们很高兴看到HP新的OmniBook笔记本机提供了以前所没有的硬盘和背光显示屏幕。 最初的OmniBook提供6个小时的电池寿命,其重量很轻,仅为3.3磅,但没有硬盘,屏幕也没有采用背光方式,使用几分钟都难以忍受。OmniBook 600几乎重了一磅,它采用了8.5英寸双扫描彩色背光显示屏。