Abstract
Intra-body communication technology is classified in two kinds. It is the current method and the electric field method. The electric field method is mainstream recently because applied range is wide. The electric field method is further subdivided. It is classified by the technical degree of difficulty. But, it is not known generally. Because, it was the secret matter in the business. We think that it is one of cause disturbing spread of intra-body communication technology. Therefore we explain classification of the electric field method intra-body communication technology on this paper. In addition, we explain the application to automobile of this communication technology.
