HUMAN BODY COMMUNICATION DEVICE, HUMAN BODY COMMUNICATION SYSTEM AND METHOD USING THE SAME

• US 20100322294A1
• Filed: 08/10/2010
• Published: 12/23/2010
• Est. Priority Date: 12/08/2004
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: HWANG, Jung-Hwan, KANG, Sung-Weon, SUNG, Jin-Bong, KIM, Jin-Kyung, HYOUNG, Chang-Hee, PARK, Duck-Gun
• Application Number:
  US12/853,466
• Publication Number:
  US 20100322294A1
• Time in Patent Office: Days
• US Class Current: 375/219
• CPC Class Codes: A61B 5/0031 Implanted circuitry

Abstract

A human body communication apparatus, a human body communication system, and a method using the same are provided. The communication apparatus is directly in contact with a human body and allows a small amount of current including a data signal to flow through the body so that information is communicated through the human body.

In order to efficiently perform a data communication by preventing a collision of data packets in the human body communication system, one communication apparatus is selected from a plurality of communication apparatuses configuring the human body communication system to control or manage a communication order for other communication apparatuses and the respective apparatuses check whether the respective communication apparatuses transmit data through the human body to try a communication.

Claims

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.