Invention Grant
- Patent Title: Adaptive active noise canceling for handset
- Patent Title (中): 手机自适应主动噪声消除
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Application No.: US13154997Application Date: 2011-06-07
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Publication No.: US08909524B2Publication Date: 2014-12-09
- Inventor: Thomas Stoltz , Kim Spetzler Berthelsen , Robert Adams
- Applicant: Thomas Stoltz , Kim Spetzler Berthelsen , Robert Adams
- Applicant Address: US MA Norwood
- Assignee: Analog Devices, Inc.
- Current Assignee: Analog Devices, Inc.
- Current Assignee Address: US MA Norwood
- Agency: Kenyon & Kenyon LLP
- Main IPC: G10L15/20
- IPC: G10L15/20

Abstract:
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.
Public/Granted literature
- US20120316872A1 ADAPTIVE ACTIVE NOISE CANCELING FOR HANDSET Public/Granted day:2012-12-13
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