Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4945565 | Low bit-rate pattern encoding and decoding with a reduced number of excitation pulses | Kazunori Ozawa | 1990-07-31 |
| 4821324 | Low bit-rate pattern encoding and decoding capable of reducing an information transmission rate | Kazunori Ozawa | 1989-04-11 |
| 4716592 | Method and apparatus for encoding voice signals | Kazunori Ozawa | 1987-12-29 |
| 4713776 | System for simultaneously coding and decoding a plurality of signals | — | 1987-12-15 |
| 4670903 | Echo canceller for attenuating acoustic echo signals on a frequency divisional manner | Kazuo Ochiai | 1987-06-02 |
| 4354273 | ADPCM System for speech or like signals | Kazunori Ozawa | 1982-10-12 |
| 4317208 | ADPCM System for speech or like signals | Kazuo Ochiai | 1982-02-23 |
| 4288664 | Neutralization signal developing device for an echo suppressor | — | 1981-09-08 |
| 4284859 | Adaptive electronic hybrid circuit | — | 1981-08-18 |
| 4191858 | Block digital processing system for nonuniformly encoded digital words | — | 1980-03-04 |