Issued Patents 2017
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9781529 | Electronic apparatus and method for activating specified function thereof | Hann-Shi Tong, Chih-Chiang Cheng, Yu-Sheng Lee, Lei Chen | 2017-10-03 |
| 9621695 | Portable electronic device | Hann-Shi Tong, Lei Chen, Yu-Sheng Lee, Chih-Chiang Cheng | 2017-04-11 |
| 9614489 | Sound producing system and audio amplifying method thereof | Chih-Chiang Cheng, Hann-Shi Tong | 2017-04-04 |
| 9601131 | Sound processing device and method | Lei Chen, Hann-Shi Tong, Chih-Wei Huang | 2017-03-21 |