Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5428604 | Training method for an echo canceller for use in a voice conference system | — | 1995-06-27 |
| 5050160 | Training method for an echo canceller for use in a voice conference system | — | 1991-09-17 |
| 5027393 | Voice conference system using echo cancellers | Yoshihiro Yamamura | 1991-06-25 |
| 4860366 | Teleconference system using expanders for emphasizing a desired signal with respect to undesired signals | Yuzo Fukushi, Taisuke Sasada | 1989-08-22 |
| 4741025 | Speech additive distribution equipment for conferencing system | Yuisuke Maruyama, Hidetoshi Mori, Hidetoshi Miura | 1988-04-26 |