| 10386208 |
Optical scanning light-guiding encoder |
— |
2019-08-20 |
| 10345120 |
Scanning light-guiding encoder |
— |
2019-07-09 |
| 6492976 |
Multiple-wheel input device |
Ching-Shun Wang, Cheng-Liang Hsieh |
2002-12-10 |
| 6340966 |
Clamping device for third-axis input device of mouse |
Ching-Shun Wang, Cheng-Liang Hsieh |
2002-01-22 |
| 6127676 |
Photo sensing device with means to eliminate light beam interference |
— |
2000-10-03 |
| 5977953 |
Mechanic encoder having single conductors ring |
— |
1999-11-02 |
| 5969344 |
Photo detector for a data input device |
— |
1999-10-19 |
| 5854483 |
Method and system for reading encoded optical signals and forming square wave signals therefrom |
— |
1998-12-29 |
| 5695048 |
Double-grid mechanical encoder |
— |
1997-12-09 |
| 5691534 |
Digital signal ouput device having a transparent gear wheel |
— |
1997-11-25 |