发明名称 |
Adaptive analog echo/next cancellation |
摘要 |
An adaptive analog echo/near-end crosstalk (NEXT) cancellation system includes a selector that outputs a first error control signal when a first receive signal does not include a remotely transmitted signal and a second error control signal when the first receive signal includes a remotely transmitted signal. An echo/NEXT cancellation module communicates with the selector and generates an estimated echo/NEXT signal based on the first error control signal and a first transmit signal when the first receive signal does not include a remotely transmitted signal and based on the second error control signal and the first transmit signal when the first receive signal includes a remotely transmitted signal. A summing module receives the first receive signal and the estimated echo/NEXT signal and generates an echo/NEXT filtered receive signal by subtracting the estimated echo/NEXT signal from the first receive signal.
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申请公布号 |
US7688968(B1) |
申请公布日期 |
2010.03.30 |
申请号 |
US20040942761 |
申请日期 |
2004.09.16 |
申请人 |
MARVELL INTERNATIONAL LTD. |
发明人 |
CHEN XIAOPENG;HE RUNSHENG |
分类号 |
H04M9/08 |
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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