Issued Patents All Time
Showing 25 most recent of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8886182 | Access control for roaming radio devices | Larry M. Peterson, Daniel J. McDonald, Brian R. Poe | 2014-11-11 |
| 8620330 | Relay of delayed transmitter identity across an audio patch | James C. Duran | 2013-12-31 |
| 8571549 | Access control for roaming radio devices | Larry M. Peterson, Daniel J. McDonald, Brian R. Poe | 2013-10-29 |
| 8098639 | System and method for managing communication channel assignments for different types of communication units in a communication system | Daniel J. McDonald, David R. Mills | 2012-01-17 |
| 7986692 | System and method for transmitting call information in a communication system with long link delays | Daniel J. McDonald | 2011-07-26 |
| 7983681 | System and method for enhancing interoperability between mobile communication system components using different audio encoding formats | — | 2011-07-19 |
| 7970426 | Method of assigning provisional identification to a subscriber unit and group | Brian R. Poe, Daniel J. McDonald | 2011-06-28 |
| 7009972 | Multicast IP zones for fast spanning tree convergence in wide-area packet network systems | Patrick Harrington | 2006-03-07 |
| 6999465 | Methods for reliably sending IP multicast packets to multiple endpoints of a local area network | Daniel J. McDonald, David P. Helm, Brian R. Poe | 2006-02-14 |
| 6920114 | Method of call control for console sites monitoring critical talkgroups in a packet-based communication system | Daniel J. McDonald, Brian R. Poe | 2005-07-19 |
| 6785254 | Wireless communication system incorporating multicast addressing and method for use | Mike Korus, Dan McDonald, Mario F. DeRango, George Popovich | 2004-08-31 |
| 6647020 | Methods for implementing a talkgroup call in a multicast IP network | Daniel J. McDonald, Robert A. Biggs, Mario F. DeRango | 2003-11-11 |
| 6298058 | Methods for implementing a talkgroup call with competing sources in a multicast IP network | Daniel J. McDonald, Michael F. Korus | 2001-10-02 |
| 6295491 | Method of providing distributed operational control of a radio communication system | Ramy Ayoub, Arthur L. Fumarolo | 2001-09-25 |
| 6157843 | Method for pre-establishing communications in a wireless communication network without the use of a multicast server | Mario F. DeRango, Russell A. Marten | 2000-12-05 |
| 5801690 | Method for managing termination of a multi-processing software application | Ramy Ayoub, Arthur L. Fumarolo | 1998-09-01 |
| 5761193 | Method for pre-establishing communications in a wireless communication network | Mario F. DeRango, Russell A. Marten | 1998-06-02 |
| 5710924 | Method of routing messages within a multi-processing software system | Ramy Ayoub, Arthur L. Fumarolo | 1998-01-20 |
| 5491689 | Method and apparatus for augmenting listening capacity of a signal destination | James H. Errico | 1996-02-13 |
| 5485633 | Method for transmitting a message to multiple communication units | James J. Burke, William A. Thompson | 1996-01-16 |
| 5450405 | Method for establishing and maintaining communication processing information for a group call | James C. Duran | 1995-09-12 |
| 5381403 | Method for establishing and maintaining system configuration information | Arms Yongyuth | 1995-01-10 |
| 5341498 | Database management system having first and second databases for automatically modifying storage structure of second database when storage structure of first database is modified | James M. Connor, Theodore M. Bloomstein, James A. Henderson, James H. Errico | 1994-08-23 |
| 5291511 | Communication system network having self address information | Laura A. Christensen, Ronald M. Zuckerman | 1994-03-01 |
| 5287542 | Method to expand an audience in a communication system network | Gregory N. Hesse | 1994-02-15 |