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Consumer Sleep Technology
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Application US20190022349
Published 2019-01-24
Earphones For Measuring And Entraining Respiration
An earphone includes a loudspeaker, a microphone, a housing supporting the loudspeaker and microphone, and an ear tip surrounding the housing and configured to acoustically couple both the loudspeaker and the microphone to an ear canal of a user, and to acoustically close the entrance to the user's ear canal. A processor receives input audio signals from the microphone, detects peaks having a frequency of around 1 Hz in the input audio signals, based on the detected peaks, computes an instantaneous heart rate, measures a frequency of an oscillation within the instantaneous heart rate, and based on the frequency of the oscillation, computes a rate of respiration.
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- 1. A system comprising:
an earphone comprising:
a loudspeaker;
a microphone;
a housing supporting the loudspeaker and microphone; and
an ear tip surrounding the housing and configured to acoustically couple both the loudspeaker and the microphone to an ear canal of a user, and to acoustically close the entrance to the user's ear canal; and
a processor configured to:
receive input audio signals from the microphone;
detect peaks having a frequency of around 1 Hz in the input audio signals;
based on the detected peaks, compute an instantaneous heart rate;
measure a frequency of an oscillation within the instantaneous heart rate; and
based on the frequency of the oscillation, compute a rate of respiration.
- 16. A method of measuring the respiration rate of a user of an earphone, the method comprising:
receiving input audio signals from a microphone supported by a housing and acoustically coupled to the user's ear canal by an ear tip surrounding the housing and acoustically closing the entrance to the user's ear canal; and in a processor, detecting peaks having a frequency of around 1 Hz in the input audio signals, based on the detected peaks, computing an instantaneous heart rate, measuring a frequency of an oscillation within the instantaneous heart rate, and based on the frequency of the oscillation, computing a rate of respiration.
