发明名称 |
Double-talk detector |
摘要 |
A communication system includes an echo canceller and double-talk detector. The echo canceller includes an adaptive finite impulse response filter that generates an adaptive filter weight vector. The double talk detector computes a squared norm of the filter weight vector and detects an increase of the squared norm in order to detect double-talk status. Upon detection of double-talk status, operation of the echo canceller is suspended.
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申请公布号 |
US6570986(B1) |
申请公布日期 |
2003.05.27 |
申请号 |
US19990385353 |
申请日期 |
1999.08.30 |
申请人 |
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE |
发明人 |
WU WEN-RONG;LIN SHIH-CHEN;CHEN PO-CHENG;KUO CHUN-HUNG |
分类号 |
H04M9/08;(IPC1-7):H04M9/08;G06F17/10 |
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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