Ichi Takumi received B.E. and M.S. degree from Nagoya Institute of Technology, Japan in 1982 and 1984, respectively. both in electronics engineering. He joined Oki Electric Co. He has a Doctor of Engineering degree from Nagoya Institute of Technology. Since December 1985, he has been with the Nagoya Institute of Technology, where he is now a professor of Dept. of Computer Science and I.C.T. center. He has been interested in digital signal processing, digital communication, coding theory, computer network, computer security and environmental electro-magnetic field.