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公开(公告)号：US20230097790A1
公开(公告)日：2023-03-30
申请号：US17872970
申请日：2022-07-25
Applicant: Apple Inc.
Inventor： Jun GONG , Gierad LAPUT , Seyedeh Fereshteh SHAHMIRI
Abstract: A method is provided that includes receiving an accelerometer signal from an accelerometer in a headphone configured to be mounted in a user's ear canal and filtering the accelerometer signal to extract a cardiac signal. The method further includes detecting a plurality of peaks in the cardiac signal and determining a cardiac rate of the user based on the detected plurality of peaks.
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