METHOD AND APPARATUS TO REDUCE THE IMPACT OF RAMAN INTERFERENCE IN PASSIVE OPTICAL NETWORKS WITH RF VIDEO OVERLAY
    1.
    发明申请
    METHOD AND APPARATUS TO REDUCE THE IMPACT OF RAMAN INTERFERENCE IN PASSIVE OPTICAL NETWORKS WITH RF VIDEO OVERLAY 有权
    减少无源光网络中拉曼干扰对射频视频覆盖的影响的方法和设备

    公开(公告)号:US20070269212A1

    公开(公告)日:2007-11-22

    申请号:US11532633

    申请日:2006-09-18

    IPC分类号: H04B10/20

    摘要: Raman interference (also known as Raman scattering) during an idle frame transmission state in a passive optical network (PON) having radio frequency video overlay is reduced by generating and transmitting data packets having both random data and random length. Randomly varying both the packet data content and the packet length can achieve significant improvement in Raman interference reduction. The random packet data and length in effect spreads the interference across a spectrum wide enough that there is no interference effect perceptible to a television viewer.

    摘要翻译: 通过产生和发送具有随机数据和随机长度两者的数据分组,减少具有射频视频叠加的无源光网络(PON)中的空闲帧传输状态期间的拉曼干涉(也称为拉曼散射)。 随机改变分组数据内容和分组长度可以显着提高拉曼干扰降低。 随机分组数据和长度有效地在足够宽的频谱上扩展干扰,使得没有电视观看者可以感知到的干扰效应。