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Robust Heart Rate Estimation

A heart rate and power technology, applied in the field of biometric measurement, can solve the problem that the biometric measurement value is sensitive to the user's movement

Active Publication Date: 2019-03-15
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A disadvantage of optical sensors such as PPG sensors is that the biometric measurements obtained are sensitive to user movement

Method used

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  • Robust Heart Rate Estimation
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Embodiment Construction

[0024] The detailed description set forth below in conjunction with the accompanying drawings is intended as a description of various aspects of the invention and is not intended to represent the only aspects in which the invention may be practiced. Each aspect described in the present invention is provided only as an example or illustration of the invention, and it is not necessarily to be construed as preferred or advantageous over other aspects. The detailed description contains specific details for the purpose of providing a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the invention. Acronyms and other descriptive terms may be used for convenience and clarity only and are not intended to limit the scope of the invention...

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Abstract

The disclosed embodiments relate to the measurement of heart rate in the presence of motion and noise. Spectral peaks in the measurements made by the optical sensor are compared to spectral peaks obtained from motion sensor signal measurements to obtain a fundamental frequency in the optical sensor signal, wherein the fundamental frequency is associated with the user's heart rate. A first heart rate can be estimated based on the fundamental frequency. Various quality measures of the first heart rate estimate may be determined. A second estimated heart rate may be determined by processing the frequency domain representation of the optical sensor signal based on the frequency domain representation of the motion sensor signal. One or more of the previously determined quality metrics may be dynamically adjusted based on a comparison of the first and second estimated heart rates.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of and priority to U.S. Nonprovisional Application No. 14 / 741,425, filed June 16, 2015, entitled ROBUST HEART RATEESTIMATION, which is assigned to the present recipient is hereby incorporated by reference in its entirety. technical field [0003] The present invention generally relates to devices, systems and methods for biometric measurements, including cardiovascular measurements such as heart rate. Background technique [0004] Modern mobile devices may include sensors, such as optical sensors, to measure biometric information. For example, photoplethysmography (PPG) sensors obtain volumetric measurements of blood vessels near the skin surface. When the heart pumps blood, the resulting pressure pulse causes changes in the blood vessels. Pressure pulses dilate arteries and arterioles in skin tissue. Optical sensors such as PPG sensors can be used to detect changes in blood ves...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/024A61B5/00
CPCA61B5/02416A61B5/02427A61B5/02438A61B5/721A61B5/7221A61B5/7278
Inventor 拉曼·萨马达尼卡洛斯·曼纽尔·普伊赫拉塞尔·阿林·马丁维克托·库里克
Owner QUALCOMM INC
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