Invention Grant
- Patent Title: Systems and methods for multi-mode adaptive noise cancellation for audio headsets
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Application No.: US13962515Application Date: 2013-08-08
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Publication No.: US10206032B2Publication Date: 2019-02-12
- Inventor: Jeffrey D. Alderson , Jon D. Hendrix , Antonio J. Miller , Robert G. Kratsas , Jens-Peter B. Axelsson , Dayong Zhou , Yang Lu , Chin Huang Yong
- Applicant: Cirrus Logic, Inc.
- Applicant Address: US TX Austin
- Assignee: Cirrus Logic, Inc.
- Current Assignee: Cirrus Logic, Inc.
- Current Assignee Address: US TX Austin
- Agency: Jackson Walker L.L.P.
- Main IPC: H04R3/00
- IPC: H04R3/00 ; G10K11/178

Abstract:
In accordance with the present disclosure, an integrated circuit for implementing at least a portion of a personal audio device may include an output and a processing circuit. The output may provide an output signal to a transducer including both a source audio signal for playback to a listener and an anti-noise signal for countering the effect of ambient audio sounds in an acoustic output of the transducer. The processing circuit may implement an adaptive noise cancellation system that generates the anti-noise signal to reduce the presence of the ambient audio sounds heard by the listener by adapting, based on a presence of the source audio signal, a response of the adaptive noise cancellation system to minimize the ambient audio sounds at the acoustic output of the transducer, wherein the adaptive noise cancellation system is configured to adapt both in the presence and the absence of the source audio signal.
Public/Granted literature
- US20140307888A1 SYSTEMS AND METHODS FOR MULTI-MODE ADAPTIVE NOISE CANCELLATION FOR AUDIO HEADSETS Public/Granted day:2014-10-16
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