Video detection using display data channel
    5.
    发明授权
    Video detection using display data channel 有权
    使用显示数据通道进行视频检测

    公开(公告)号:US07334054B2

    公开(公告)日:2008-02-19

    申请号:US10850208

    申请日:2004-05-20

    申请人: David D. Anderson

    发明人: David D. Anderson

    IPC分类号: G06F3/00

    CPC分类号: G09G5/006 G09G2370/047

    摘要: A method and apparatus are provided for detecting a connection associated with a display and a system having a first and second video output port. Data channel information associated with the first video output port and the second video output port are read using DDC instructions and the absence of a connection between the display and the first video output port is detected. Information associated with the absence of the connection is transferred to the display which is connected to the second video output port such that the transferred information associated with the absence of the connection can be displayed to a user in the form of an error message.

    摘要翻译: 提供了一种用于检测与显示器相关联的连接的方法和装置以及具有第一和第二视频输出端口的系统。 使用DDC指令读取与第一视频输出端口和第二视频输出端口相关联的数据信道信息,并且检测到显示器和第一视频输出端口之间没有连接。 与不存在连接相关联的信息被传送到连接到第二视频输出端口的显示器,使得与不存在连接相关联的传送信息可以以错误消息的形式显示给用户。