Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5822732 | Filter for speech modification or enhancement, and various apparatus, systems and method using same | — | 1998-10-13 |
| 5553194 | Code-book driven vocoder device with voice source generator | Katsushi Seza, Kunio Nakajima | 1996-09-03 |
| 5268991 | Apparatus for encoding voice spectrum parameters using restricted time-direction deformation | — | 1993-12-07 |
| 4965580 | Quantizer and inverse-quantizer | Kunio Nakajima | 1990-10-23 |