发明名称 |
ECHO CANCELLATION WITH QUANTIZATION COMPENSATION |
摘要 |
An apparatus having a first circuit and a second circuit is disclosed. The first circuit is configured to generate a first intermediate signal by expanding a first input signal subjected to a quantization. The second circuit is configured to generate a second intermediate signal based on a second input signal. The second intermediate signal approximates an echo in the first input signal caused by the second input signal. The second circuit is also configured to generate a third intermediate signal by companding the second intermediate signal to compensate the quantization of the first input signal. |
申请公布号 |
US2015055774(A1) |
申请公布日期 |
2015.02.26 |
申请号 |
US201314074026 |
申请日期 |
2013.11.07 |
申请人 |
LSI Corporation |
发明人 |
Shaw David G. |
分类号 |
H04M3/00 |
主分类号 |
H04M3/00 |
代理机构 |
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代理人 |
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主权项 |
1. An apparatus comprising:
a first circuit configured to generate a first intermediate signal by expanding a first input signal subjected to a quantization; and a second circuit configured to (i) generate a second intermediate signal based on a second input signal, wherein said second intermediate signal approximates an echo in said first input signal caused by said second input signal, and (ii) generate a third intermediate signal by companding said second intermediate signal to compensate said quantization of said first input signal. |
地址 |
San Jose CA US |