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1. 发明授权

US5305309A Echo canceller 失效
标题翻译：回音消除器
公开(公告)号：US5305309A
公开(公告)日：1994-04-19
申请号：US974664
申请日：1992-11-12
申请人： Kaoru Chujo , Masako Katoh
发明人： Kaoru Chujo , Masako Katoh
IPC分类号： H04B3/23
CPC分类号： H04B3/23
摘要： An echo cancellor includes an echo replica generator which generates an echo replica signal based on a received signal, a subtractor which obtains a transmitting side output signal by subtracting the echo replica signal from a transmitting side input signal, a divergence detector which detects a divergence of the echo cancellor based on the transmitting side input signal and the echo replica signal and outputs a detection signal when the divergence is detected, and a resetting part which automatically resets the echo replica generator in response to the detection signal from the divergence detector.
摘要翻译：回波消除器包括基于接收信号产生回波复制信号的回波复制发生器，通过从发送侧输入信号减去回波复制信号来获得发送侧输出信号的减法器，检测发送侧输出信号的发散度的发散检测器所述回波消除器基于所述发送侧输入信号和所述回波复制信号，并且当检测到所述发散时输出检测信号;以及复位部，其响应于来自所述发散检测器的检测信号自动复位所述回波复制发生器。

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