Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9716954 | DC impedance detection circuit and method for speaker | — | 2017-07-25 |
| 9645200 | Battery power measuring method, measuring device and battery-powered equipment | Feng Yu, Xiaodong Huang | 2017-05-09 |