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US 2019/0239772 A1Published application
Detecting respiration rate
AssigneeBose Corporation
InventorsVictoria A. GRACE, Harsh A. MANKODI, Jack E. READ
Life of this patent
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Abstract
Aspects of the present disclosure provide a system including an earphone and a processor. The earphone includes at least one of a microphone or accelerometer/gyroscope. The system is configured to determine a user's respiration rate (breath rate per minute) either directly by measuring the breath rate or indirectly based on the user's heartrate signal.
Claims20
A system comprising:
- an earphone comprising:
- a microphone, a housing surrounding the microphone, and an ear tip surrounding the housing and configured to acoustically couple the microphone to an ear canal of a user of the earphone and to acoustically close the entrance to the user's ear canal;
- and
- a processor configured to:
- receive an input audio signal from the microphone;
- and
- process the input audio signal to determine a respiration rate of the user, wherein the processor is configured to process the input audio signal by:
- downsampling the input audio signal to obtain a downsampled signal;
- applying a bandpass filter to the downsampled signal to obtain a bandpass signal between a first frequency and a second frequency;
- performing envelope processing on the bandpass signal to obtain an envelope of the bandpass signal;
- performing a thresholding operation on the envelope of the bandpass signal to obtain a gated signal;
- and
- determining the respiration rate based, at least in part, on the gated signal.
10 more elements
A system comprising:
- an earphone comprising:
- at least one of an accelerometer or a gyroscope, a housing surrounding the at least one accelerometer or gyroscope, and an ear tip surrounding the housing and configured to acoustically couple the at least one accelerometer or gyroscope to an ear canal of a user of the earphone and to acoustically close the entrance to the user's ear canal;
- and
- a processor configured to:
- receive an input signal from the at least one of the accelerometer or gyroscope;
- and
- process the input signal to determine a respiration rate of the user.
4 more elements
A system comprising:
- an earphone comprising a sensor configured to measure a heartbeat signal of a user of the earphone, a housing surrounding the sensor, and an ear tip surrounding the housing and configured to acoustically couple the sensor to an ear canal of a user of the earphone and to acoustically close the entrance to the user's ear canal;
- and
- a processor configured to:
- receive an input signal based, at least in part, on the heartbeat signal of the user, from the sensor;
- perform peak detection on a version of the input signal to obtain at least one of a time and amplitude associated with detected peaks of the user's heartbeat signal;
- and
- determine a respiration rate of the user based, at least in part, on the obtained at least one of time and amplitude associated with the detected peaks.
4 more elements
Dependencies are inferred from the claim text.