Invention Grant
- Patent Title: Active noise cancellation device
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Application No.: US15381768Application Date: 2016-12-16
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Publication No.: US10147411B2Publication Date: 2018-12-04
- Inventor: Victor Dzhigan , Alexey Petrovsky , Jingfan Qin , Yang Song
- Applicant: Huawei Technologies Co., Ltd.
- Applicant Address: CN Shenzhen
- Assignee: HUAWEI TECHNOLOGIES CO., LTD.
- Current Assignee: HUAWEI TECHNOLOGIES CO., LTD.
- Current Assignee Address: CN Shenzhen
- Agency: Conley Rose, P.C.
- Main IPC: G10K11/178
- IPC: G10K11/178 ; H04R1/10

Abstract:
An active noise cancellation device for cancelling a primary acoustic path between a noise source and a microphone by an overlying secondary acoustic path between a canceling loudspeaker and the microphone, the device comprising: a first input for receiving a microphone signal from the microphone; wherein the first electrical compensation path and the second electrical compensation path are coupled in parallel between a first node and the first input to provide the first noise canceling signal for a feed-backward prediction of the noise source; wherein the third electrical compensation path and the fourth electrical compensation path are coupled in parallel between a second node and the first input to provide the second noise canceling signal for a feed-forward prediction of noise source.
Public/Granted literature
- US20170125006A1 Active Noise Cancellation Device Public/Granted day:2017-05-04
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