发明授权
- 专利标题： Multi-input channel and multi-output channel echo cancellation
- 专利标题（中）： 多输入通道和多输出通道回波消除
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申请号： US11150017申请日： 2005-06-10
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公开(公告)号： US07925007B2公开(公告)日： 2011-04-12
- 发明人: Jack W. Stokes, III , John Platt
- 申请人： Jack W. Stokes, III , John Platt
- 申请人地址： US WA Redmond
- 专利权人： Microsoft Corp.
- 当前专利权人： Microsoft Corp.
- 当前专利权人地址： US WA Redmond
- 代理机构： Lyon & Harr, LLP
- 代理商 Katrina A. Lyon
- 主分类号： H04M9/08
- IPC分类号： H04M9/08
摘要：
An echo cancellation technique that can process multi-input microphone signals with only a small increase in the overall CPU consumption compared to implementing the algorithm for a single channel microphone signal. Furthermore, the invention provides an architecture that provides for echo cancellation for multiple applications in parallel with only a small increase in CPU consumption compared to a single instance of echo cancellation with a single microphone input and multi-output channel playback.
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