Patent ID: 7684854

Claim:
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 ).