Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7369000 | Adaptive frequency detector of phase locked loop | Wen-Yi Wu, Chao-Lung Tsai | 2008-05-06 |
| 6914862 | Device and method for calibrating linear velocity and track pitch for optical disc drive | Chao-Long Tsai, Jin-Chuan Hsu | 2005-07-05 |
| 6496126 | Digitization apparatus and method using a finite state machine in feedback loop | Jing-Hong Conan Zhan, Andrew C. Chang | 2002-12-17 |
| 6055219 | Method of switching the motor operation of an optical disc drive between the constant linear velocity mode and the constant angular velocity mode | Chao-Long Tsai | 2000-04-25 |