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    • 3. 发明授权
    • Method and system for echo cancellation in a network switch
    • 网络交换机回波消除的方法和系统
    • US07860236B2
    • 2010-12-28
    • US11670316
    • 2007-02-01
    • Youhong LuGlenn KostevaJenny Jianqiu JinNick Georgacopoulos
    • Youhong LuGlenn KostevaJenny Jianqiu JinNick Georgacopoulos
    • H04M9/08
    • H04B3/237
    • A method and system in network switch for cancelling multiple sources of network echo, including echo that is combined with a persistent, non-echo signal. A first echo canceller cancels a first echo signal that arises from an echo path in the network switch, and second echo canceller cancels a second echo signal that arises from an echo path in an external network device. The first echo canceller operates by first removing any persistent, non-echo signal that may be combined with the first echo signal, then training on the remaining, pure echo signal. The second echo canceller includes two sub-component echo cancellers that are coordinated so as to provide a minimum error signal for cancellation applied to the second echo signal.
    • 一种用于消除多个网络回波源的网络交换机的方法和系统,包括与持续的非回波信号相结合的回波。 第一回波消除器取消从网络交换机中的回波路径产生的第一回波信号,第二回波消除器消除由外部网络设备中的回波路径产生的第二回波信号。 第一回波消除器通过首先去除可以与第一回波信号组合的任何持续的非回波信号,然后对剩余的纯回波信号进行训练来操作。 第二回波消除器包括两个子组件回波消除器,其被协调以便提供用于抵消第二回波信号的最小误差信号。
    • 4. 发明申请
    • Method and System for Echo Cancellation In A Network Switch
    • 网络交换机回波消除方法与系统
    • US20080187129A1
    • 2008-08-07
    • US11670316
    • 2007-02-01
    • Youhong LuGlenn KostevaJenny Jianqiu JinNick Georgacopoulos
    • Youhong LuGlenn KostevaJenny Jianqiu JinNick Georgacopoulos
    • H04M9/08
    • H04B3/237
    • A method and system in network switch for cancelling multiple sources of network echo, including echo that is combined with a persistent, non-echo signal. A first echo canceller cancels a first echo signal that arises from an echo path in the network switch, and second echo canceller cancels a second echo signal that arises from an echo path in an external network device. The first echo canceller operates by first removing any persistent, non-echo signal that may be combined with the first echo signal, then training on the remaining, pure echo signal. The second echo canceller includes two sub-component echo cancellers that are coordinated so as to provide a minimum error signal for cancellation applied to the second echo signal.
    • 一种用于消除多个网络回波源的网络交换机的方法和系统,包括与持续的非回波信号相结合的回波。 第一回波消除器取消从网络交换机中的回波路径产生的第一回波信号,第二回波消除器消除由外部网络设备中的回波路径产生的第二回波信号。 第一回波消除器通过首先去除可以与第一回波信号组合的任何持续的非回波信号,然后对剩余的纯回波信号进行训练来操作。 第二回波消除器包括两个子组件回波消除器,其被协调以便提供用于抵消第二回波信号的最小误差信号。