Data transmission system
    1.
    发明授权
    Data transmission system 失效
    数据传输系统

    公开(公告)号:US06571393B1

    公开(公告)日:2003-05-27

    申请号:US09084501

    申请日:1998-05-27

    IPC分类号: H03G1104

    摘要: A data transmission system is proposed, for example for video-on-demand, internet or multimedia applications, in which a number of subscribers in a building are connected to a central server through at least in part twisted pair cables within the building. Compensation for the channel distortion caused by the use of twisted pair cables is provided by the use of pre-emphasis filters in the outgoing data lines from the server. The required coefficients for the pre-emphasis filters are established by first characterizing the distortion properties of a channel by the use of a test signal.

    摘要翻译: 提出了一种数据传输系统,例如用于视频点播,互联网或多媒体应用,其中建筑物中的许多用户通过至少部分地在建筑物内的双绞线电缆连接到中央服务器。 通过在服务器的输出数据线中使用预加重滤波器来提供使用双绞线电缆造成的信道失真的补偿。 通过首先通过使用测试信号来表征信道的失真特性来建立用于预加重滤波器的所需系数。