Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5528687 | Echo canceller | Yoshinori Tanaka, Masayoshi Inoue | 1996-06-18 |
| 5274741 | Speech coding apparatus for separately processing divided signal vectors | Tomohiko Taniguchi, Yoshinori Tanaka, Yasuji Ota, Fumio Amano | 1993-12-28 |
| 5263119 | Gain-shape vector quantization method and apparatus | Yoshinori Tanaka, Tomohiko Taniguchi, Fumio Amano, Yasuji Ohta | 1993-11-16 |
| 5261027 | Code excited linear prediction speech coding system | Tomohiko Taniguchi, Yoshinori Tanaka, Yasuji Ohta, Fumio Amano, Akira Sasama | 1993-11-09 |
| 5231692 | Pitch period searching method and circuit for speech codec | Yoshinori Tanaka, Tomohiko Taniguchi, Akira Sasama, Yasuji Ohta, Fumio Amano | 1993-07-27 |
| 5224167 | Speech coding apparatus using multimode coding | Tomohiko Taniguchi, Yoshinori Tanaka, Akira Sasama, Yasuji Ohta, Fumio Amano | 1993-06-29 |
| 5159611 | Variable rate coder | Yoshihiro Tomita, Kohei Iseda | 1992-10-27 |
| 5138662 | Speech coding apparatus | Fumio Amano, Tomohiko Taniguchi, Yoshinori Tanaka, Yasuji Ota | 1992-08-11 |
| 5115469 | Speech encoding/decoding apparatus having selected encoders | Tomohiko Taniguchi, Kohei Iseda, Koji Okazaki, Fumio Amano, Yoshinori Tanaka +1 more | 1992-05-19 |
| 5103481 | Voice detection apparatus | Kohei Iseda, Kenichi Abiru, Yoshihiro Tomita | 1992-04-07 |
| 5091955 | Voice coding/decoding system having selected coders and entropy coders | Kohei Iseda, Kazumi Satoh, Hideaki Kurihara, Fumio Amano, Koji Okazaki | 1992-02-25 |
| 5086471 | Gain-shape vector quantization apparatus | Yoshinori Tanaka, Tomohiko Taniguchi, Fumio Amano, Yasuji Ohta | 1992-02-04 |
| 4951269 | Echo canceller with short processing delay and decreased multiplication number | Fumio Amano, Mohammad R. Asharif, Yoshihiro Sakai | 1990-08-21 |
| 4890325 | Speech coding transmission equipment | Tomohiko Taniguchi, Kohei Iseda, Koji Okazaki, Fumio Amano | 1989-12-26 |
| 4831636 | Coding transmission equipment for carrying out coding with adaptive quantization | Tomohiko Taniguchi, Kohei Iseda, Yoshihiro Tomita, Fumio Amano, Shoji Tominaga | 1989-05-16 |
| 4571733 | Automatic equalization device and method of starting-up the same | Takashi Kaku, Masayoshi Inoue | 1986-02-18 |
| 4482973 | Digital automatic gain control circuit | Kuninosuke Ihira, Takashi Kaku | 1984-11-13 |
| 4445224 | Pull-in circuit for a digital phase locked loop | Kuninosuke Ihira, Takashi Kaku | 1984-04-24 |
| 4312075 | Timing-phase recovery circuit | Kazuo Murano, Yoshikazu Itoh, Fumio Amano, Tatsuki Hayashi | 1982-01-19 |