As a professor, he has taught microprocessor architecture, logic theory and electronic circuits while sucessfully completing 14 industrial and academical projects over the last 5 years. Additionally, he contributess to multimedia coding standards such as H.264 and AVC as a member of the Korean National Body (KNB) of MPEG under ISO/IEC JTC1/SC29. In his career, he proposed 17 multiple video compression algorithms and 1 complexity evaluation methodology, which are patented in the USA, PCT, and Korea. In addition to his technical carrer, he served not only as a program director of the Accreditation Board for Engineering Education of Korea (ABEEK) to improve the quality of engineering education with regard to environment, curricula, and education systems, but also as an ABEEK evaluator and consultant.