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Apparatus and method for measuring electric non-contact electrocardiogram in everyday life

  • US 7,684,854 B2
  • Filed: 08/31/2005
  • Issued: 03/23/2010
  • Est. Priority Date: 08/31/2004
  • Status: Active Grant
First Claim
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1. An apparatus for taking ElectroCardioGrams (ECGs), the apparatus being attached to a human body, comprising:

  • one or more amplifier-attached electrodes (10) installed adjacent to appropriate locations of clothes (5) without directly contacting a body (3);

    one or more filter and amplifier units (30) connected to first sides of the amplifier-attached electrodes (10) and configured to filter out external noise and amplify filtered signals;

    one or more Analog/Digital (A/D) converters (50) connected to first sides of the filter and amplifier units (30);

    a digital signal processing unit (70) provided to first sides of the A/D converter (50) and configured to transmit a taken ECG to a display and a post-processing device and the digital signal processing unit (70) comprises a subtractor (71) for obtaining a difference between the digitized biosignals input through the A/D converters (50), and a substraction filter (73) for filtering out noise, which is generated during the subtraction, from the digital signals input through the subtractor (71); and

    a ground plate (80) installed adjacent to an appropriate location on the clothes (5) without directly contacting the body (3).

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