发明名称 |
Echo canceller adaptive step size and method therefor |
摘要 |
The step sizes for tap positions of an adaptive filter (124) in an echo canceller (125) for canceling an echo signal are individually selected based upon a profile of the echo environment. A training signal (112) is injected into the echo canceller and to the echo path during a training interval, or period. The adaptive filter profiles the echo path during the training interval. Respective step sizes alpha[k] for the tap positions are generated as a function of the echo profile so generated. |
申请公布号 |
GB2349556(B) |
申请公布日期 |
2001.09.05 |
申请号 |
GB20000005179 |
申请日期 |
2000.03.06 |
申请人 |
* MOTOROLA INC |
发明人 |
JAMES ALLEN * STEPHENS;JAMES BRIAN * PIKET;ERNEST PEI-CHING * CHEN;WILLIAM CHUNHUNG * YIP |
分类号 |
H04M9/08;(IPC1-7):H04B3/23 |
主分类号 |
H04M9/08 |
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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