Yun-Jung Lee received the B.S. degree in Electronic Engineering from the Hanyang University, Seoul, Korea, in 1984, and the M.S. and Ph.D. degrees in Electrical Engineering from the Korea Advanced Institute of Science & Technology, Taejon, Korea, in 1986 and 1994, respectively. From 1986 to 1989, he was a researcher with the Korea Institute of Machinery and Metals. Since 1995, he has been with the Kyungpook National University, Daegu, Korea, where he is currently a Full Professor with the School of Electronics Engineering. His research interests include multi-legged robot, service robot, motion control, and intelligent control.