Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8514459 | Communication device | Teruki Mita, Hiroaki Harada | 2013-08-20 |
| 6937722 | Method and apparatus for echo cancellation | — | 2005-08-30 |
| 6625284 | Comfort noise generating apparatus | — | 2003-09-23 |
| 6590975 | Echo canceller | — | 2003-07-08 |
| 6351532 | Echo canceler employing multiple step gains | Masashi Takada | 2002-02-26 |
| 6236725 | Echo canceler employing multiple step gains | Masashi Takada | 2001-05-22 |
| 6201866 | Echo canceler employing segment-based reinitialization | Masashi Takada | 2001-03-13 |
| 6181753 | Echo/noise canceler with delay compensation | Masashi Takada | 2001-01-30 |
| 5752223 | Code-excited linear predictive coder and decoder with conversion filter for converting stochastic and impulsive excitation signals | Hiromi Aoyagi, Kenichiro Hosoda | 1998-05-12 |
| 5727122 | Code excitation linear predictive (CELP) encoder and decoder and code excitation linear predictive coding method | Kenichiro Hosoda, Hiromi Aoyagi, Hiroshi Katsuragawa | 1998-03-10 |