Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7596220 | Echo cancellation using adaptive IIR and FIR filters | Chiang Yeh | 2009-09-29 | $3,494,000 |
| 7536007 | Echo cancellation using adaptive IIR and FIR filters | Chiang Yeh | 2009-05-19 | $1,140,000 |