Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5267267 | Timing extraction method and communication system | Tohru Kazawa, Toshiroh Suzuki, Shigeo Nishita, Ichiro Masse, Takashi Morita +1 more | 1993-11-30 |
| 5123030 | Timing extraction method and communication system | Tohru Kazawa, Toshiroh Suzuki, Shigeo Nishita, Ichiro Masse, Takashi Morita +1 more | 1992-06-16 |
| 5060268 | Speech coding system and method | Yoshiaki Asakawa, Kazuhiro Kondo, Akira Ichikawa, Toshiro Suzuki | 1991-10-22 |
| 4918734 | Speech coding system using variable threshold values for noise reduction | Ryujiro Muramatsu, Kazuhiro Kondo, Toshiro Suzuki | 1990-04-17 |
| 4864608 | Echo suppressor | Sumie Nakabayashi, Yoshiro Suzuki, Kazuhiro Kondo, Shinichi Niina | 1989-09-05 |
| 4841521 | Method and system for bidirectionally transmitting data | Eiichi Amada, Hirotoshi Shirasu, Hiroshi Takatori, Tohru Kazawa, Toshiro Suzuki +1 more | 1989-06-20 |
| 4809271 | Voice and data multiplexer system | Kazuhiro Kondo, Toshiro Suzuki | 1989-02-28 |
| 4720862 | Method and apparatus for speech signal detection and classification of the detected signal into a voiced sound, an unvoiced sound and silence | Kazuo Nakata | 1988-01-19 |
| 4653098 | Method and apparatus for extracting speech pitch | Kazuo Nakata | 1987-03-24 |