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1. 发明授权

EP1187360B1 Digital echo canceller 有权
标题翻译：数字回声消除器
公开(公告)号：EP1187360B1
公开(公告)日：2012-09-19
申请号：EP01307015.6
申请日：2001-08-17
申请人： Agere Systems Guardian Corporation
发明人： Chadha, Mandeep Singh , McCaslin, Shawn Robert , Milisavljevic, Mile
IPC分类号： H04L1/00 , H04B3/23
CPC分类号： H04L1/0054 , H04B3/23 , H04L25/03993

2. 发明公开

EP1187360A3 Digital echo canceller 有权
标题翻译：数字回声消除器
公开(公告)号：EP1187360A3
公开(公告)日：2007-06-06
申请号：EP01307015.6
申请日：2001-08-17
申请人： Agere Systems Guardian Corporation
发明人： Chadha, Mandeep Singh , McCaslin, Shawn Robert , Milisavljevic, Mile
IPC分类号： H04B3/23
CPC分类号： H04L1/0054 , H04B3/23 , H04L25/03993
摘要： A separation circuit, method of determining a residual level of an echo, and an echo canceling system, bit pump and transceiver employing the circuit and method. The echo canceling system employing the separation circuit is couplable between a transmit and receive path of the bit pump and generates an echo canceling signal. In one embodiment, the separation circuit includes a symbol determination circuit that accepts a receive signal, propagating along the receive path, substantially free of an echo and determines a symbol associated with the receive signal. The separation circuit also includes an estimator stage, coupled to the symbol determination circuit, that receives the symbol and provides an estimated receive signal. The separation circuit generates data representing a residual level of the echo as a function of the estimated receive signal and the echo canceling signal.

3. 发明公开

EP1187360A2 Digital echo canceller 有权
标题翻译：数码相机Echounterdrücker
公开(公告)号：EP1187360A2
公开(公告)日：2002-03-13
申请号：EP01307015.6
申请日：2001-08-17
申请人： Agere Systems Guardian Corporation
发明人： Chadha, Mandeep Singh , McCaslin, Shawn Robert , Milisavljevic, Mile
IPC分类号： H04B3/23
CPC分类号： H04L1/0054 , H04B3/23 , H04L25/03993
摘要： A separation circuit, method of determining a residual level of an echo, and an echo canceling system, bit pump and transceiver employing the circuit and method. The echo canceling system employing the separation circuit is couplable between a transmit and receive path of the bit pump and generates an echo canceling signal. In one embodiment, the separation circuit includes a symbol determination circuit that accepts a receive signal, propagating along the receive path, substantially free of an echo and determines a symbol associated with the receive signal. The separation circuit also includes an estimator stage, coupled to the symbol determination circuit, that receives the symbol and provides an estimated receive signal. The separation circuit generates data representing a residual level of the echo as a function of the estimated receive signal and the echo canceling signal.
摘要翻译：分离电路，确定回波残余电平的方法以及回波消除系统，采用电路和方法的位泵和收发器。采用分离电路的回波消除系统可以在位泵的发送和接收路径之间耦合，并产生回波消除信号。在一个实施例中，分离电路包括符号确定电路，其接收沿着接收路径传播的基本上没有回波的接收信号，并确定与接收信号相关联的符号。分离电路还包括耦合到符号确定电路的估计器级，其接收符号并提供估计的接收信号。分离电路根据估计的接收信号和回波消除信号产生表示回波的残余电平的数据。

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