| 7035658 |
Wireless communication device and network controller for affiliation with associated groups and method thereof |
Peter M. Drozt, Laura A. Christensen |
2006-04-25 |
| 6707829 |
Enhanced automatic timing adjustment for alternate routing of HFC systems |
Gina Marie Hanks, Timothy M. Burke |
2004-03-16 |
| 6640109 |
Method and apparatus for interurban dispatch group calling |
Peter M. Drozt, Tracy L. Wolf, Paul M. Erickson |
2003-10-28 |
| 6381466 |
Wireless communication system with trunked signal voting |
John C. Sarallo |
2002-04-30 |
| 5987331 |
Communication system to communication system gateway method and apparatus |
Gary W. Grube, Mark L. Shaughnessy, Steven E. Norwood |
1999-11-16 |
| 5513378 |
Maintaining communications after control breaks in a trunked communication system |
Stephen J. Ranz |
1996-04-30 |
| 5485462 |
Method of facilitating an audio source change in a digital radio communication system |
David P. Helm |
1996-01-16 |
| 5335350 |
Individual communication system selection method for group services |
Daniel J. McDonald, Laura A. Christensen |
1994-08-02 |
| 5101502 |
Wide area trunked channel busy override |
Daniel J. McDonald, Thaddeus A. Kozlowski |
1992-03-31 |
