发明名称 |
Echo cancellation with double-talk detection |
摘要 |
A method of suppressing an echo signal in a communication path such as acoustic coupling between a speaker and a microphone in a telephone device handset includes the steps of monitoring a transmitted signal supplied to the communication path to determine an attribute thereof; generating a leaky mask based on the determined attribute and an attribute of a received echo signal; and partially cancelling the received echo signal using the leaky mask. <IMAGE>
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申请公布号 |
EP1443674(A1) |
申请公布日期 |
2004.08.04 |
申请号 |
EP20040250395 |
申请日期 |
2004.01.24 |
申请人 |
MITEL KNOWLEDGE CORPORATION |
发明人 |
POPOVIC, MIRJANA;SCHULTZ, DIETER |
分类号 |
H04B3/23;H04M9/08;(IPC1-7):H04B3/23 |
主分类号 |
H04B3/23 |
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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