Invention Publication
- Patent Title: DYNAMIC WIND DETECTION FOR ADAPTIVE NOISE CANCELLATION (ANC)
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Application No.: US18067545Application Date: 2022-12-16
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Publication No.: US20240205596A1Publication Date: 2024-06-20
- Inventor: Wilbur Lawrence , John Bryan-Merrett
- Applicant: Cirrus Logic International Semiconductor Ltd.
- Applicant Address: GB Edinburgh
- Assignee: Cirrus Logic International Semiconductor Ltd.
- Current Assignee: Cirrus Logic International Semiconductor Ltd.
- Current Assignee Address: GB Edinburgh
- Main IPC: H04R3/00
- IPC: H04R3/00 ; G10K11/178 ; G10L21/0216

Abstract:
Noise cancellation operations consume battery power, and thus techniques for reducing power consumption by performing power management in active noise cancellation in consumer devices are beneficial for the user. One example power management technique described according to embodiments of this disclosure allow wind noise detection to switch between a high-power higher-accuracy operation and a low-power lower-accuracy operation. For example, multiple microphones may be available on the personal device for detecting wind noise, in which using multiple microphones increases accuracy but also increases battery consumption. A personal device may switch between using a single microphone and multiple microphones based on environmental conditions to provide improved performance in certain environmental conditions and reduced power consumption in other environmental conditions.
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