Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6343069 | Apparatus and method for automatic and adaptive adjustment of build-out capacitance to balance a hybrid | — | 2002-01-29 |
| 6160792 | Pulse amplitude modulated tone generator | Jeffery M. Davis | 2000-12-12 |
| 5848127 | Two-wire channel unit with loopback test capability | Dmitry Levitan | 1998-12-08 |
| 5825781 | Pulse amplitude modulated tone generator | Jeffery M. Davis | 1998-10-20 |
| 5337354 | Tip-ring voltage correction circuit | — | 1994-08-09 |
| 5263081 | Method and apparatus for providing on-hook transmission for digital loop carrier channel units | Roger A. Nightingale, Makan Abousaeedi | 1993-11-16 |