DEMIRTAS, Sefa,KING, Jason D.,ADAMS, Robert,AKL, Tony Joseph,BERNSTEIN, Jeffrey G.
申请号：
EP17821210
公开号：
EP3478166A4
申请日:
2017.06.29
申请国别(地区):
EP
年份:
2020
代理人:
摘要：
Activity monitors and smart watches utilizing optical measurements are becoming widely popular, and users expect to get an increasingly accurate estimate of their heart rate (HR) from these devices. These devices are equipped with a light source and an optical sensor which enable estimation of HR using a technique called photoplethysmography (PPG). One of the main challenges of HR estimation using PPG is the coupling of motion into the optical PPG signal when the user is moving randomly or exercising. The present disclosure describes a computationally feasible and fast HR estimation algorithm to be executed at instances of little or no motion. Resulting HR readings may be useful on their own, or be provided to systems that monitor HR continuously to prevent the problem of such systems being locked on an incorrect HR for long periods of time. Implementing techniques described herein leads to more accurate HR measurements.
