Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6590972 | DTMF detection based on LPC coefficients | Youhong Lu | 2003-07-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6590972 | DTMF detection based on LPC coefficients | Youhong Lu | 2003-07-08 |