Issued Patents 2003
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6654409 | Direct digital access arrangement circuitry and method for connecting DSL circuitry to phone lines | Jeffrey W. Scott, David R. Welland | 2003-11-25 |
| 6611553 | Isolation system with digital communication across a capacitive barrier | Jeffrey W. Scott, David R. Welland | 2003-08-26 |
| 6587560 | Low voltage circuits powered by the phone line | Jeffrey W. Scott, David R. Welland | 2003-07-01 |
| 6570513 | Isolation system with digital communication across a capacitive barrier | Jeffrey W. Scott, David R. Welland | 2003-05-27 |
| 6522745 | Digital access arrangement circuitry and method having a synthesized ringer impedance for connecting to phone lines | George Tyson Tuttle, Jeffrey W. Scott, David R. Welland | 2003-02-18 |
| 6516024 | Digital access arrangement circuitry and method for connecting to phone lines having a DC holding circuit with low distortion and current limiting | Timothy J. Dupuis, George Tyson Tuttle, Jeffrey W. Scott, David R. Welland | 2003-02-04 |
| 6504864 | Digital access arrangement circuitry and method for connecting to phone lines having a second order DC holding circuit | Timothy J. Dupuis, George Tyson Tuttle, Jeffrey W. Scott, David R. Welland | 2003-01-07 |