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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: 2018-02-16
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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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 present invention, and is not intended to represent the only aspects in which the present invention can be practiced. Each aspect described in the present invention is provided only as an example or illustration of the present invention, and it is not necessarily construed as preferable or advantageous over other aspects. The detailed description includes specific details for the purpose of providing a thorough understanding of the present invention. However, those skilled in the art will understand that the present invention can be practiced without these specific details. In some cases, well-known structures and devices are shown in the form of block diagrams in order to avoid obscuring the concept of the present invention. Acronyms and other descriptive terms may be used only for convenience and clarity, and are not intended to...

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Abstract

Disclosed embodiments pertain to the measurement of heart rate in the presence of motion and noise. Spectral peaks in measurements by an optical sensor are compared with spectral peaks obtained from amotion sensor signal measurements, to obtain a fundamental frequency in the optical sensor signal, where the fundamental frequency is associated with a user's heart rate. A first heart rate may be estimated based on the fundamental frequency. A variety of quality metrics may be determined for the first heart rate estimate. A second estimated heart rate may be determined based by processing a frequency domain representation of the optical sensor signal based on a 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 first and second estimated heart rates.

Description

[0001] Cross reference of related applications [0002] This application claims the rights and priority of the U.S. non-provisional application No. 14 / 741,425 entitled "ROBUST HEART RATEESTIMATION" filed on June 16, 2015, and the application is assigned to this acceptor Let it be incorporated into this article by reference in its entirety. Technical field [0003] The present invention generally relates to devices, systems and methods for biometric measurement including cardiovascular measurement such as heart rate. Background technique [0004] Modern mobile devices may include sensors for measuring biometric information, such as optical sensors. For example, a photoplethysmogram (PPG) sensor obtains a volume measurement value of blood vessels near the skin surface. When the heart pumps blood, the resulting pressure pulse causes blood vessels to change. The pressure pulse expands the arteries and small arteries in the skin tissue. For example, optical sensors such as PPG sensor...

Claims

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Application Information

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Patent Type & Authority Applications(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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