发明授权
US07003101B2 Subband echo location and double-talk detection in communication systems
有权
通信系统中的子带回波位置和双通道检测
- 专利标题： Subband echo location and double-talk detection in communication systems
- 专利标题（中）： 通信系统中的子带回波位置和双通道检测
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申请号： US10226048申请日： 2002-08-23
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公开(公告)号： US07003101B2公开(公告)日： 2006-02-21
- 发明人: Michael Seibert
- 申请人： Michael Seibert
- 申请人地址： CA Kanata
- 专利权人： Zarlink Semiconductor Inc.
- 当前专利权人： Zarlink Semiconductor Inc.
- 当前专利权人地址： CA Kanata
- 代理机构： Marks & Clerk
- 代理商 Richard J. Mitchell
- 优先权： GB0120868 20010829
- 主分类号： H04M9/08
- IPC分类号： H04M9/08
摘要：
A method of controlling an echo canceller in a communications channel, is disclosed wherein input signals from the communications channel are first subbanded into a subband. Echo locations are then identified within the subband and are used to control the echo canceller. Typically, the echo canceller will be a fullband echo canceller with an adaptive filter, in which case the echo locations are used to control the filter coefficients.
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