Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6470308 | Human speech processing apparatus for detecting instants of glottal closure | Leonardus F. Willems | 2002-10-22 |
| 5611002 | Method and apparatus for manipulating an input signal to form an output signal having a different length | Leonardus L. M. Vogten, Werner D. E. Verhelst, Josephus H. Eggen | 1997-03-11 |
| 5479564 | Method and apparatus for manipulating pitch and/or duration of a signal | Leonardus L. M. Vogten, Werner D. E. Verhelst, Josephus H. Eggen | 1995-12-26 |