Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9942682 | Implementation method and device of multi-bit modulation-based digital speaker system | Dengyong Ma, Jun Yang, Jianming Zhou, Guoqiang Chai, Yefeng CAI | 2018-04-10 |