Issued Patents 2004
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6801556 | Optical source driver with output load detection circuit | — | 2004-10-05 |
| 6778665 | Distribution of current draw in a line powered DAA | Donald R. Laturell, Lane A. Smith, Michael S. Toth, Michael G. Williams | 2004-08-17 |
| 6778569 | Optical source driver with improved input stage | — | 2004-08-17 |
| 6763107 | Method and apparatus for reducing distortion in a line powered modulator circuit | Keith Eugene Hollenbach, Donald R. Laturell, Lane A. Smith, Weilin Zhu | 2004-07-13 |
| 6735305 | Detection of low tip/ring currents in a line powered DAA | Donald R. Laturell, Lane A. Smith, Michael S. Toth, Michael G. Williams, Keith Eugene Hollenbach +1 more | 2004-05-11 |
| 6728371 | Method and apparatus for stabilization of a line powered modulator circuit | Keith Eugene Hollenbach, Donald R. Laturell, Lane A. Smith, Weilin Zhu | 2004-04-27 |
| 6717539 | Digital-to-analog converter | Donald R. Laturell | 2004-04-06 |
| 6687371 | Maintaining an off-hook condition during a call bridge | Donald R. Laturell, Lane A. Smith, Michael S. Toth, Michael G. Williams | 2004-02-03 |
| 6674857 | Startup procedure for international line powered DAA | Donald R. Laturell, Lane A. Smith, Michael S. Toth, Keith Eugene Hollenbach, Weilin Zhu | 2004-01-06 |