Received a B.S. degree from Korea University, South Korea, in 1994, and M.S.E. and Ph.D. degrees from the Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, in 1996 and 2004, respectively. From 2004 to 2005, he was a researcher with the Human Welfare Robot System Research Center. In 2005, he was a member of the research staff at the Samsung Advanced Institute of Technology. He is currently a professor of computer science and engineering at the Korea University of Technology and Education. His current research interests include human–computer interactions, virtual reality, and haptics.