- 专利标题： Acoustic echo cancellation device, acoustic echo cancellation method and non-transitory computer readable recording medium recording acoustic echo cancellation program
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申请号： US16711736申请日： 2019-12-12
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公开(公告)号： US10999444B2公开(公告)日： 2021-05-04
- 发明人: Shinichi Yuzuriha
- 申请人： PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
- 申请人地址： US CA Torrance
- 专利权人： PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
- 当前专利权人： PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
- 当前专利权人地址： US CA Torrance
- 代理机构： Greenblum & Bernstein, P.L.C.
- 优先权： JPJP2019-073738 20190408,JPJP2019-163681 20190909
- 主分类号： G10L21/0224
- IPC分类号： G10L21/0224 ; H04M9/08 ; G10L21/0232 ; H04R3/00 ; H04R3/02 ; G10L21/0208 ; G10L21/0216
摘要：
An acoustic echo cancellation device includes: a first echo canceller which, using an input signal obtained from at least two microphones and a reproduced signal outputted to a speaker, produces a first pseudo echo signal which indicates a component of the reproduced signal contained in the input signal; and a second echo canceller which, using at least one input signal outputted from the at least two microphones and the first pseudo echo signal, produces a second pseudo echo signal which indicates a component of the first pseudo echo signal contained in the at least one input signal, and cancels an acoustic echo component of the at least one input signal using the second pseudo echo signal.
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