Issued Patents 2004
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823019 | Reduced DC transients in a sigma delta filter | Paul D. Hendricks, Lane A. Smith | 2004-11-23 |
| 6778665 | Distribution of current draw in a line powered DAA | Jonathan H. Fischer, Lane A. Smith, Michael S. Toth, Michael G. Williams | 2004-08-17 |
| 6763107 | Method and apparatus for reducing distortion in a line powered modulator circuit | Jonathan H. Fischer, Keith Eugene Hollenbach, Lane A. Smith, Weilin Zhu | 2004-07-13 |
| 6744888 | Line interface circuit with event detection signaling | Tony S. El-Kik, Keith Eugene Hollenbach, Steven B. Witmer | 2004-06-01 |
| 6735305 | Detection of low tip/ring currents in a line powered DAA | Jonathan H. Fischer, Lane A. Smith, Michael S. Toth, Michael G. Williams, Keith Eugene Hollenbach +1 more | 2004-05-11 |
| 6731728 | Low noise line powered DAA with differential feedback | Keith Eugene Hollenbach, Steven B. Witmer | 2004-05-04 |
| 6728371 | Method and apparatus for stabilization of a line powered modulator circuit | Jonathan H. Fischer, Keith Eugene Hollenbach, Lane A. Smith, Weilin Zhu | 2004-04-27 |
| 6717539 | Digital-to-analog converter | Jonathan H. Fischer | 2004-04-06 |
| 6687371 | Maintaining an off-hook condition during a call bridge | Jonathan H. Fischer, Lane A. Smith, Michael S. Toth, Michael G. Williams | 2004-02-03 |
| 6674856 | Placement of a transmit predistortion filter with respect to a data access arrangement | Paul D. Hendricks, Lane A. Smith, Steven B. Witmer | 2004-01-06 |
| 6674857 | Startup procedure for international line powered DAA | Jonathan H. Fischer, Lane A. Smith, Michael S. Toth, Keith Eugene Hollenbach, Weilin Zhu | 2004-01-06 |