Ja Choon Koo (M'04) was born in Seoul Korea and educated at Seoul and Austin. He received the Ph.D. and the M.S. degrees from the University of Texas at Austin, in 1997 and 1992, respectively and the B.S. degree from Hanyang University, in 1989. He is an Assistant Professor of the School of Mechanical Engineering at Sunkyunkwan University in Korea. He was the advisory engineer of IBM, San Jose, CA, and the Staff Engineer of Samsung Information Systems America, San Jose, CA. His research interests are modeling of dynamics systems and sensors and actuators.