Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7342439 | Current bias circuit and current bias start-up circuit thereof | — | 2008-03-11 |
| 7123842 | Ultrasonic and infrared transmitter with tunable carrier frequency | Shui-Po Ho | 2006-10-17 |
| 7059933 | Ultrasonic signaling interactive toy | Shui-Po Ho | 2006-06-13 |
| 7016616 | Integrated circuit receiver available for infrared or ultrasonic transmission with digital filtering | — | 2006-03-21 |