After completing junior high school and high school education at Suankularb Wittayalai School, Bangkok, in 1981, and Triam Udom Suksa School, Bangkok, in 1983, respectively, I received the B.Eng. degree in Electrical Engineering from Chulalongkorn University, Bangkok, Thailand, in March 1987, the M.Eng. degree in Information Science from Ibaraki University, Hitachi, Japan, in March 1990, and the D.Eng. degree in Information Engineering from Tohoku University (Shiratori Laboratory, RIEC), Sendai, Japan, in January 1994.
During my graduate study in Japan, I was a recipient of the Japanese Government (Monbusho) Scholarship (Embassy Recommendation) from April 1987 to March 1993, and of a scholarship from the Asahi Glass Company Foundation in the 1993 academic year. I was also a Research Fellow at Tohoku University being granted by the Tohoku Kaihatsu Memorial Foundation from April 1993 to January 1994. I wish to thank these organizations for their financial supports.