Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6351531 | Method and system for controlling echo cancellation using zero echo path, ringing, and off-hook detection | Mansour Tahernezhaadi | 2002-02-26 |
| 6347140 | Echo canceling method and apparatus | Mansour Tahernezhaadi | 2002-02-12 |