Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6525993 | Speaker direction detection circuit and speaker direction detection method used in this circuit | Taisuke Sasada | 2003-02-25 |
| 5974374 | Voice coding/decoding system including short and long term predictive filters for outputting a predetermined signal as a voice signal in a silence period | — | 1999-10-26 |
| 5687283 | Pause compressing speech coding/decoding apparatus | — | 1997-11-11 |
| 5654964 | ATM transmission system | — | 1997-08-05 |
| 5323398 | Transmission system for transmitting G3 facsimile signals and compressed speech signals | Katsunori Usuki | 1994-06-21 |
| 4924517 | Encoder of a multi-pulse type capable of controlling the number of excitation pulses | — | 1990-05-08 |