Technology developments play an important role in the daily life of Hong Kong people. As researchers, we have been generating new ideas, new applications, and new technologies. To share our knowledge, our faculty members are writing a series of articles in the Technology column of The Standard newspaper. The series covers recent topics such as digital terrestrial television, new China 3G standard, mobile phone applications, Radio Frequency Identification (RFID), power electronics, Intelligent Transport System, Biomedical Engineering, mobile learning, computer communication, networking, IC design, power electronics and electrical engineering, etc. The articles appear every Tuesday and the first article was published on September 25, 2007.