Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6792080 | System and method for testing enhanced 911 signalling over a digital loop carrier trunk | Anthony J. Imperato, Shan Yueh | 2004-09-14 |
| 6724780 | Voice frequency data enhancement method | Arupjyoti Bhuyan, Gerald R. Boyer, Ronald R. Brown, Eric A. Deichstetter, Jeffrey Louis Duffany +7 more | 2004-04-20 |