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FEEDBACK PHOTOPLETHYSMOGRAPHY MEASURING DEVICE AND MEASURING METHOD THEREOF

  • US 20170209054A1
  • Filed: 06/13/2016
  • Published: 07/27/2017
  • Est. Priority Date: 01/22/2016
  • Status: Abandoned Application
First Claim
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1. A feedback photoplethysmography measuring device, comprising:

  • a measuring device, comprising;

    a light emitter that emits light with a particular wavelength to a human body; and

    a light receiver that receives the light with a particular wavelength transmitted through the human body or reflected by the human body, and converts the light to a photoplethysmography signal which is an electrical signal;

    an analog/digital conversion unit that converts the photoplethysmography signal converted by the light receiver which is an analog signal to a photoplethysmography value which is a digital value;

    a variation-degree calculation unit that calculates a photoplethysmography variation value according to the photoplethysmography value converted by the analog/digital conversion unit; and

    a feedback emitted light amplitude adjustment unit that controls brightness of the light emitted by the light emitter according to a plurality of preset control values or the adjusted photoplethysmography variation value calculated by the variation-degree calculation unit, and adjusts the photoplethysmography variation value to a minimum variation value, to control the brightness of the light emitted by the light emitter to be optimal.

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