Yoon Seok Yang (S'00) received the B.S. degree in control and instrumentation engineering from Seoul National University, Seoul, Korea, in 1996 and M.S. degree in interdisciplinary course (biomedical engineering major) from Yonsei University, Seoul, Korea, in 1998. He is currently a Ph.D. degree candidate in the Medical Electronics Laboratory (MELab) of the Seoul National University. From 1996 to 1998, he worked as a Research Member at the Department of Biomedical Engineering of Yonsei University Medical Center. His main research topic was an early detection of breast cancer in digital mammogram. In 1998, he joined the Medical Electronics Laboratory (MELab) of the Seoul National University, where the major research activities are development of portable electronics and intelligent algorithms for medical and biological applications such as artificial pancreas, biosensors, telemedicine, and man-machine interface. His interests include signal processing. From 1999 to 2000, he worked on the ultrasonic biologic tissue characterization project funded by MEDISON, Korea, that develops various ultrasonic medical equipments. Mr. Yang is a student member of Korea Society of Medical and Biological Engineering (KOSOMBE).