Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8036376 | Echo prevention circuit having adaptive digital filter | Kozo Okuda, Takeo Inoue | 2011-10-11 |
| 7885989 | Encoding circuit and digital signal processing circuit | Iwao Honda, Takashi Kuroda, Noriyuki Tomita | 2011-02-08 |