1. Dept. of Automatic Control Engineering, Feng Chia Univ. Taichung, TW (Corresponding author), e-mail: lincs@fcu.edu.tw
2. Extended Education on Information and Electrical Engineering, Feng Chia Univ. Taichung, TW.
3. Master’s Program of Biomedical Informatics and Biomedical Engineering, Feng Chia Univ., Taichung, TW.
4. Altek Corp., Taipei, TW.