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Human body communication device, human body communication system and method using the same

  • US 20060136015A1
  • Filed: 11/22/2005
  • Published: 06/22/2006
  • Est. Priority Date: 12/08/2004
  • Status: Abandoned Application
First Claim
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1. A human body communication apparatus comprising:

  • an electrode for transmitting/receiving a signal in the form of a current through a human body while being in contact with the human body;

    a preamplifier for amplifying the signal received through the electrode;

    a band-pass filter for removing noise included in the signal amplified by the preamplifier;

    a comparator for comparing the filtered signal with a reference voltage; and

    a controller for restoring the signal output from the comparator and generating a base-band signal to be transmitted to the electrode, wherein the controller generates the base-band signal by a pulse coding modulation.

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