发明名称 |
ADAPTIVE ACTIVE NOISE CANCELING FOR HANDSET |
摘要 |
Embodiments of the present invention provide an adaptive noise canceling system. The adaptive noise canceling system may be used in a handset to cancel background noise by generating an anti-noise signal. The adaptive noise canceling system may include first input to receive a first signal from a feedforward microphone; a second input to receive a second signal from an error microphone; a controller coupled to the inputs, the controller configured to adaptively generate an anti-noise signal according to the received signals, wherein the controller derives a profile of the anti-noise signal from the first signal and derives a magnitude of the anti-noise signal from both first and second signal; and an output to transmit the anti-noise signal to a speaker.
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申请公布号 |
US2012316872(A1) |
申请公布日期 |
2012.12.13 |
申请号 |
US201113154997 |
申请日期 |
2011.06.07 |
申请人 |
STOLTZ THOMAS;SPETZLER BERTHELSEN KIM;ADAMS ROBERT;ANALOG DEVICES, INC. |
发明人 |
STOLTZ THOMAS;SPETZLER BERTHELSEN KIM;ADAMS ROBERT |
分类号 |
G10L15/20;G10K11/16 |
主分类号 |
G10L15/20 |
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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