Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6449049 | Profiling of aspheric surfaces using liquid crystal compensatory interferometry | Yee Loy Lam, Zhisheng Yun, Siu Chung Tam | 2002-09-10 |
| 6426979 | Adaptation control algorithm for echo cancellation using signal-value based analysis | Xun Yang | 2002-07-30 |