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

A human body communication system comprising:

• a plurality of communication apparatuses for transmitting/receiving a base-band signal while being in contact with a human body;
• and
• a plurality of hosts having an operation performance, and coupled with the respective communication apparatuses,
• wherein one communication apparatus (a master member) controls a data transmission for a plurality of other communication apparatuses (slave members).

A human body communication system comprising:

• a plurality of communication apparatuses for transmitting/receiving a base-band signal while being in contact with a human body;
• and
• a plurality of hosts having an operation performance and coupledwith the respective communication apparatuses,
• wherein the respective communication apparatuses broadcast an information request message to a plurality of other communication apparatuses when there is no signal transmitted through the human body.

A human body communication method for transmitting/receiving data in the form of a base-band signal through a human body wherein a plurality of communication apparatuses are in contact with the human body via an electrode and are respectively coupled with hosts configuring a network, the human body communication method comprising:

• broadcasting an information request message from one communication apparatus (a master member) to other communication apparatuses (slave members) through the electrode;
• receiving a response message from the slave members that received the request message;
• configuring a member table of the slave members based on the received response messages in a network;
• and
• broadcasting information of the member table.

A human body communication method for transmitting/receiving data in the form of a base-band signal through a human body, wherein a plurality of communication apparatuses are in contact with the human body via an electrode and are respectively coupled with hosts to configure a network, the method comprising:

• monitoring whether the respective communication apparatuses perform a data transmission through the human body;
• broadcasting an communication apparatus information notifying message from the one communication apparatus to other communication apparatuses when the data transmission is in an idle state;
• receiving the response message from the other communication apparatuses that received the broadcast message;
• configuring a member table based on the received response messages in a network;
• and
• determining a communication order for the other communication apparatuses based on the member table to start a data communication.