发明名称 |
Echo canceller and communication apparatus employing the same |
摘要 |
An echo canceller and a communication apparatus employing the same, are capable of stably reproducing sounds other than a received sound during a speech through a telephone and the received sound is heard by the other party to the speech. The echo canceller includes first and second input terminals and first and second output terminals. An echo path between the first output terminal and the second input signal terminal is adaptively estimated. A signal component inputted through the echo path is cancelled from a signal inputted to the second input terminal. The canceller further includes a signal mixing means for mixing a plurality of signals inputted thereto.
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申请公布号 |
US5131032(A) |
申请公布日期 |
1992.07.14 |
申请号 |
US19900492905 |
申请日期 |
1990.03.13 |
申请人 |
HITACHI, LTD. |
发明人 |
ESAKI, TOMOHIRO;OHTA, YOSHIHIRO |
分类号 |
H04B3/23;H04M9/08 |
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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