Masakazu IWAMURA†, Seiichi UCHIDA††, Shinichiro OMACHI†††, and Koichi KISE† † Graduate School of Engineering, Osaka Prefecture University 1–1 Gakuencho, Sakai-shi, Osaka, 599–8531 Japan †† Faculty of Information Science and Electrical Engineering, Kyushu University Hakozaki 6-10-1, Higashi-ku, Fukuoka-shi, 812-8581 Japan ††† Graduate School of Engineering, Tohoku University 6–6–05 Aoba, Aramaki...