| 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 (TH(n)) that depends on a nonlinear error power estimate (24), and preferably also a linear error power estimate (22). A residual power estimate (28) of a residual signal (e(n)) is compared to this dynamic threshold. The residual signal is attenuated in a nonlinear processor (20) if the residual power estimate falls below the dynamic threshold.
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| 申请公布号 |
CA2240726(A1) |
申请公布日期 |
1997.06.26 |
| 申请号 |
CA19962240726 |
申请日期 |
1996.12.06 |
| 申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON;TELEFONAKTIEBOLAGET LM ERICSSON |
发明人 |
KARLSEN, JOHNNY;ERIKSSON, ANDERS |
| 分类号 |
H04M1/60;H04B3/23;(IPC1-7):H04B3/23 |
主分类号 |
H04M1/60 |
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