Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6745155 | Methods and apparatuses for signal analysis | Tjeerd Catharinus Andringa, Pieter Willem J. van Hengel, Michael Heemskerk, Maartje Marjolein Nillesen | 2004-06-01 |
| 4384335 | Method of and system for determining the pitch in human speech | Leonardus F. Willems, Robert J. Sluyter | 1983-05-17 |