Method and Apparatus for Generating Assessments Using Physical Activity and Biometric Parameters
AssigneeValencell, Inc.
InventorsSteven F. LeBoeuf, Michael Edward Aumer, Eric Douglas Romesburg
Life of this patent
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Abstract
The methods and apparatuses presented herein determine and/or improve the quality of one or more physiological assessment parameters, e.g., response-recovery rate, based on biometric signal(s) and/or motion signal(s) respectively output by one or more biometric and/or motion sensors. The disclosed methods and apparatuses also estimate a user's stride length based on a motion signal and a determined type of user motion, e.g., walking or running. The speed of the user may then be estimated based on the estimated stride length.
Claims12
An assessment generation system configured to determine a blood pressure of a user using a photoplethysmography (PPG) sensor and a motion sensor comprised in a device disposed proximate at least some skin of the user such that at least the PPG sensor contacts a user's skin, the assessment generation system comprising a processing circuit configured to:
- screen motion data from the motion sensor to determine an integrity of PPG data from the PPG sensor;
- buffer the PPG data from the PPG sensor, wherein at least some of the buffered PPG data has integrity as determined responsive to the motion data;
- generate a PPG waveform from the buffered PPG data;
- and
- process the PPG waveform using a machine learning model to generate the blood pressure of the user.
An ear-worn device configured to determine a blood pressure of a user, the ear-worn device comprising:
- a motion sensor;
- a photoplethysmography (PPG) sensor disposed proximate at least some skin of the user such that at least the PPG sensor contacts a user's skin;
- and
- a processing circuit configured to:
- screen motion data from the motion sensor to determine an integrity of PPG data from the PPG sensor;
- process the PPG data from the PPG sensor, wherein at least some of the processed PPG data has integrity as determined responsive to the motion data, to generate a PPG waveform from the PPG data;
- and
- process the PPG waveform using a machine learning model to generate the blood pressure of the user.
An assessment generation system for a wearable device, the assessment generation system comprising:
- a motion sensor configured to generate a motion signal output;
- a biometric sensor configured to generate a biometric signal output;
- a signal extraction processing circuit configured to process information from the motion signal output and information from the biometric signal output to attenuate motion information from the biometric signal output to generate a cleaner biometric signal output with reduced noise;
- and
- an assessment processing circuit, comprising a neural network, configured to determine a blood pressure characteristic for the user from the cleaner biometric signal.
Dependencies are inferred from the claim text.