Affiliation: | (1) Shinshu University, Department of Information Engineering, 500, Wakasato, Nagano, Nagano 380-8553, Japan;(2) R & D Office 5, Hioki E. E. Corporation, 81, Koizumi, Ueda, Nagano 386-1192, Japan;(3) Present address: Toyokawa Administrative Center, Minolta Company, Ltd., 1-8, Kanayanishi-Machi, Toyokawa, Aichi 442-8558, Japan |