Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7697697 | Apparatus for automatic identification of audio input/output device and method thereof | Yi-Shu Chang, Wen-Chi Wang | 2010-04-13 |
| 7194097 | Audio control device | Yi-Shu Chang, Jul-Cheng Huang, Wen-Chi Wang | 2007-03-20 |