Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5644678 | Method of estimating voice pitch by rotating two dimensional time-energy region on speech acoustic signal plot | — | 1997-07-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5644678 | Method of estimating voice pitch by rotating two dimensional time-energy region on speech acoustic signal plot | — | 1997-07-01 |