发明名称 |
Method and device for echo cancellation using power estimation in a residual signal |
摘要 |
An echo canceller determines a dynamic threshold that depends on a non-linear error power estimate and also a linear error power estimate. A residual power estimate of a residual signal is compared to this dynamic threshold. The residual signal is attenuated in a non-linear processor if the residual estimate falls below the dynamic threshold.
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申请公布号 |
US6195430(B1) |
申请公布日期 |
2001.02.27 |
申请号 |
US19980098506 |
申请日期 |
1998.06.17 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON |
发明人 |
ERIKSSON ANDERS;KARLSEN JOHNNY |
分类号 |
H04M1/60;H04B3/23;(IPC1-7):H04M9/08 |
主分类号 |
H04M1/60 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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