Patent ID: 8265554
Filing Date: 2012-09-11
Classification: A61B,H04B

Abstract:
1. A communication device using a human body comprising: an electrode unit including a plurality of electrode pairs, wherein each of the plurality of electrode pairs is composed of a signal electrode and a ground electrode, wherein each of the plurality of electrode pairs are arranged radially, wherein each of the plurality of electrode pairs are in the communication device, and wherein each of the plurality of radially arranged electrode pairs are each arranged in order to a have a data signal transmitted a direction mutually exclusive of any of the other electrode pairs; an electrode selecting switch selecting one of the plurality of electrode pairs; a transmitter outputting the data signal to the human body through the selected electrode pair; and a switch controller controlling the electrode selecting switch to select an electrode pair from the plurality of electrode pairs having a smallest measured signal loss from each of a plurality of signal losses measured from each of the plurality of electrode pairs to an other communication device, which is measured by transmitting a test signal to the other communication device connected to the human body through each of the plurality of electrode pairs.