Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12411308 | Optical lens assembly and photographing module | Ching-Yun Huang, Chun-Sheng Lee | 2025-09-09 |
| D1044341 | Music studio desk set | — | 2024-10-01 |
| 10802250 | Optical image lens | Chien-Hsiung Tseng | 2020-10-13 |
| 9337716 | Power supply circuit with PFC function, and automatic gain control circuit therefor and control method thereof | Jing-Meng Liu | 2016-05-10 |
| 9287796 | Isolated power converter circuit and control method thereof | Jing-Meng Liu | 2016-03-15 |
| 9081401 | Switching regulator and control circuit and control method thereof | Leng-Nien Hsiu, Pei-Yuan Chen, Roland Van Roy, Jing-Meng Liu | 2015-07-14 |
| 9055646 | Light emitting device driver circuit and control method thereof | Jing-Meng Liu | 2015-06-09 |
| 8968130 | Bicycle cogset with support element | Chung-Yan Huang | 2015-03-03 |
| 8916126 | Method of fabricating graphite flakes | Chung-An Wang, Chun-Han Lin, Chuen-Ming Gee, Pai-Lu Wang, Ching-Jang Lin | 2014-12-23 |
| 8896319 | Light emitting device control circuit and short detection circuit thereof | Ko-Cheng Wang | 2014-11-25 |
| 8884537 | Active bleeder circuit triggering TRIAC in all phase and light emitting device power supply circuit and TRIAC control method using the active bleeder circuit | Leng-Nien Hsiu, Pei-Yuan Chen, Roland Van Roy, Jing-Meng Liu | 2014-11-11 |
| 8780587 | Switching regulator and control circuit and control method thereof | Jing-Meng Liu, Leng-Nien Hsiu, Pei-Yuan Chen | 2014-07-15 |
| 8710755 | Light emitting device power supply circuit, and light emitting device driver circuit and control method thereof | Pei-Yuan Chen, Jing-Meng Liu, Leng-Nien Hsiu | 2014-04-29 |
| 8661932 | Speed control device for speed changing device of bicycle | — | 2014-03-04 |
| 8659239 | Circuit and method for providing absolute information for floating grounded integrated circuit | Roland Van Roy, Jing-Meng Liu, Leng-Nien Hsiu | 2014-02-25 |
| 8511200 | Speed control device for bicycle | Wen-Feng Tsai | 2013-08-20 |
| 8384305 | LED driver with direct AC-DC conversion and control, and method and integrated circuit therefor | Jing-Meng Liu, Roland Van Roy | 2013-02-26 |
| 8300670 | Method for deriving precise control over laser power of an optical pickup unit, and associated automatic power calibration circuit | Hsiao-Yuan Chi, Chih-Ching Chen | 2012-10-30 |
| 8253476 | Trimmer circuit and method | — | 2012-08-28 |
| 8217632 | Synchronous driver circuit and integrated circuit for use therein | Jing-Meng Liu, Heng Yun | 2012-07-10 |
| 8149044 | Trimmer circuit and method | — | 2012-04-03 |
| 8149146 | Automatic power control system for optical disc drive and method thereof | Bing-Yu Hsieh, Ming-Jiou Yu, Kuo-Jung Lan, Shu-Hung Chou, Chih-Ching Chen | 2012-04-03 |
| 8089834 | Apparatus for controlling servo signal gains of an optical disc drive and method of the same | Chih-Ching Chen, Yuh-Kuang Chen, Ming-Jiou Yu, Kuo-Jung Lan, Chun Lin +1 more | 2012-01-03 |
| 7991030 | Method for deriving precise control over laser power of an optical pickup unit, and associated automatic power calibration circuit | Hsiao-Yuan Chi, Chih-Ching Chen | 2011-08-02 |
| 7911891 | Apparatus for controling servo signal gains of an optical disc drive and method of same | Chih-Ching Chen, Yuh Cheng, Ming-Jiou Yu, Kuo-Jung Lan, Chun Lin +1 more | 2011-03-22 |