Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6480722 | Radio receiver | Tatsumasa Yoshida | 2002-11-12 |
| 6404886 | Method and apparatus for echo cancelling with multiple microphones | Tatsumasa Yoshida | 2002-06-11 |
| 6351532 | Echo canceler employing multiple step gains | Yoshihiro Ariyama | 2002-02-26 |