发明名称 |
Echo canceller with extended frequency range |
摘要 |
An echo canceller with extended frequency range for acoustic echoes comprising an adaptive finite impulse response filter receiving the receive signal below a cross-over frequency and predicting the echo of this signal across the echo path, a subtractor for subtracting the predicted echo form the send signal below the cross-over frequency, and an adder for combining the low frequency output of the adder with the send signal above the cross-over frequency to form the send signal to be transmitted.
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申请公布号 |
US4609787(A) |
申请公布日期 |
1986.09.02 |
申请号 |
US19840612159 |
申请日期 |
1984.05.21 |
申请人 |
COMMUNICATIONS SATELLITE CORPORATION |
发明人 |
HORNA, OTAKAR A. |
分类号 |
H04B3/23;(IPC1-7):H04B3/20 |
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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