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System and method for measuring physiological parameters

  • US 9,339,234 B2
  • Filed: 05/15/2012
  • Issued: 05/17/2016
  • Est. Priority Date: 05/26/2011
  • Status: Active Grant
First Claim
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1. A measuring method for measuring a physiological parameter via a measuring system comprising a test strip, an auxiliary measuring device and an electronic device having an application program, a correction datum, digital-to-analog converting (DAC) unit and an analog-to digital converting (ADC) unit, comprising steps of:

  • coupling the auxiliary measuring device to the electronic device through an audio port, and the auxiliary measuring device forms a loop between the test strip and the electronic device;

    the electronic device executing the application program to initialize a measuring procedure by generating a first digital signal, wherein said first digital signal is an audio digital signal with a specific frequency;

    the DAC unit converting the first digital signal to a first analog signal, and transferring the first analog signal to the auxiliary measuring device via the loop;

    the auxiliary measuring device applying a voltage to the test strip according to the first analog signal, and causing the test strip to generate a second analog signal;

    the ADC unit converting the second analog signal into a second digital signal via the application program; and

    the correction datum and the application program are used to correct and calculate the second digital signal to estimate the physiological parameter.

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