双VGA显示下的视频传输自动切换的实现  

Implementation of Video Transmission Automatic Switching for Dual-VGA Model

作　　者：任德昊[1] 任德昱[1,2] 方天[1] 

机构地区：[1]成都信息工程学院,四川成都610041 [2]乐山市公安局,四川乐山614000

出　　处：《科技信息》2010年第25期I0101-I0102,共2页Science & Technology Information

摘　　要：设计了一种双屏显示技术下的VGA视频自动选择器,能够根据从操作系统获取的鼠标位置信息选择当前VGA信号作为输出,实现了输出视频随鼠标在VGA间移动时进行自动切换。在使用多屏显示的视频会议系统中,手工切换输出视频方式经常会导致正在讨论的问题与展示内容不同步。这一装置能够很好地解决这类问题。A video automatic switcher for dual-VGA model is designed in this paper. It can select the current VGA signal as output according to the mouse position getting from the operating system. The output can switch automatically between the tow VGA signals whenever the mouse moves form one VGA to the other. This switcher can resolve these problems well, such as the discussing problem always is not synchronous with the displaying content which switched manually in a video conferencing system using muhi-VGA model.

关 键 词：双屏显示 视频传输自动切换 鼠标位置获取 

分 类 号：TP335[自动化与计算机技术—计算机系统结构]