Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6405169 | Speech synthesis apparatus | Reishi Kondo | 2002-06-11 |
| 6094489 | Digital hearing aid and its hearing sense compensation processing method | Ryuuichi Ishige | 2000-07-25 |
| 5892836 | Digital hearing aid | Ryuuichi Ishige, Reishi Kondo | 1999-04-06 |
| 5838801 | Digital hearing aid | Ryuuichi Ishige | 1998-11-17 |
| 5835610 | Hearing air system | Ryuuichi Ishige, Reishi Kondo | 1998-11-10 |
| 5677984 | Complex cepstrum analyzer for speech signals | — | 1997-10-14 |
| 5204905 | Text-to-speech synthesizer having formant-rule and speech-parameter synthesis modes | — | 1993-04-20 |
| 4959866 | Speech synthesizer using shift register sequence generator | Noriko Matsuo | 1990-09-25 |
| 4914749 | Method capable of extracting a value of a spectral envelope parameter with a reduced amount of operations and a device therefor | — | 1990-04-03 |
| 4899386 | Device for deciding pole-zero parameters approximating spectrum of an input signal | Masako Ichikawa | 1990-02-06 |
| 4845754 | Pole-zero analyzer | — | 1989-07-04 |