Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5128625 | Adaptive phase lock loop system | Takuro Muratani | 1992-07-07 |
| 5113448 | Speech coding/decoding system with reduced quantization noise | Takahiro NOMURA, Shigeru Iizuka, Hideki Honma | 1992-05-12 |
| 4811396 | Speech coding system | — | 1989-03-07 |
| 4757517 | System for transmitting voice signal | — | 1988-07-12 |
| 4470146 | Adaptive quantizer with instantaneous error robustness | Henri G. Suyderhoud | 1984-09-04 |
| 4369523 | Remote control system of an optical repeater | Norio Seki, Haruo Sakaguchi | 1983-01-18 |
| 4341438 | Light source arrangement in an optical communication system | Norio Seki, Haruo Sakaguchi | 1982-07-27 |
| 4303803 | Digital speech interpolation system | — | 1981-12-01 |
| 4281416 | Light source system in an optical transmission repeater | Norio Seki, Haruo Sakaguchi | 1981-07-28 |