Invention Grant
- Patent Title: Speaker emulation of a microphone for wind detection
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Application No.: US16872076Application Date: 2020-05-11
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Publication No.: US11304001B2Publication Date: 2022-04-12
- Inventor: Nikolas T. Vitt , Joyce E. Gorny , Thomas M. Jensen , Jeffrey N. Gleason , Tyrone T. Chen
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Womble Bond Dickinson (US) LLP
- Main IPC: H04R3/04
- IPC: H04R3/04 ; G01P5/00

Abstract:
A method for detecting wind using a microphone and a speaker of an electronic device. The method obtains a microphone signal produced by the microphone. The method obtains a speaker input signal produced by the speaker that is emulating a microphone capturing ambient sound in an environment through the speaker. The method determines a coherence between the microphone signal and the speaker input signal and determines whether the coherence is below a coherence intensity threshold. In response to determining that the coherence is below the coherence intensity threshold, the method determines a presence of wind in the environment.
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