| 11562260 |
System and method for mobile device locationing |
Patrenahalli M. Narendra |
2023-01-24 |
| 8306071 |
Method for selecting an operating mode based on a detected synchornization pattern |
Bradley M. Hiben, David L. Muri, Donald G. Newberg, Darrell J. Stogner, Alan L. Wilson +1 more |
2012-11-06 |
| 7801526 |
Methods for informing subscribers of adjacent sites |
Donald G. Newberg, Matthew C. Keller, Robert D. LoGalbo, James E. Mathis, Daniel J. McDonald |
2010-09-21 |
| 7797007 |
System and method to dynamically manage a talk group signaling type |
Daniel J. McDonald, Jerald M. Gard |
2010-09-14 |
| 7698553 |
Method for utilizing multiple level encryption |
Donald G. Newberg |
2010-04-13 |
| 7492734 |
Method of access to a channelized network from a packet data network |
James E. Mathis, Gary W. Grube, Matthew C. Keller, Robert D. LoGalbo, Daniel J. McDonald +2 more |
2009-02-17 |
| 7433367 |
Method and apparatus for maintaining communications when radio communication is unavailable |
Joseph E. Baum, Mohammed A. Foustok, Stephen C. Glass |
2008-10-07 |
| 7369852 |
Methods for informing subscribers in a channelized network of adjacent sites |
Donald G. Newberg, Daniel J. McDonald |
2008-05-06 |
| 7366533 |
Methods for providing access to wireless resources in a trunked radio communication system |
Jeffrey S. Anderson, Michael P. McMahon, Leslie G. Gustafson |
2008-04-29 |
| 7339917 |
Method for selectively allocating a limited number of bits to support multiple signaling types on a low bit rate channel |
Donald G. Newberg, Bradley M. Hiben, David L. Muri, Darrell J. Stogner, Alan L. Wilson |
2008-03-04 |
| 7203207 |
Method for selecting an operating mode based on a detected synchronization pattern |
Bradley M. Hiben, David L. Muri, Donald G. Newberg, Darrell J. Stogner, Alan L. Wilson +1 more |
2007-04-10 |
| 7200129 |
Method of signaling reverse channel information with minimal voice/data delay |
— |
2007-04-03 |
| 6882663 |
Method for synchronizing a control channel to a working channel |
— |
2005-04-19 |
| 6778829 |
Method for indicating unusable sites to communication units in a communication system |
Daniel J. McDonald |
2004-08-17 |
| 6647020 |
Methods for implementing a talkgroup call in a multicast IP network |
John W. Maher, Daniel J. McDonald, Mario F. DeRango |
2003-11-11 |
| 6564066 |
Method for site-based priority in a communication system |
John M. Gilbert |
2003-05-13 |
| 6115365 |
Method and apparatus for queuing and transmitting messages |
Donald G. Newberg |
2000-09-05 |