Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7797008 | Method and apparatus for reducing access delay in push to talk over cellular (PoC) communications | Ramesh Sudini, Lawrence A. Willis | 2010-09-14 |
| 7069016 | Dynamically determining a community of entities in a communication system | Deborah J. Monks | 2006-06-27 |
| 6374108 | Assigning an IP address to a mobile station while roaming | Ken Jakobsen, Rod Averbuch, John Hughes, Guy G. Romano | 2002-04-16 |
| 5987022 | Method for transmitting multiple-protocol packetized data | Robert L. Geiger, Michael J. Crowley, Richard A. Comroe | 1999-11-16 |
| 5970056 | Method of communication resource assignment | Karen A. Brailean, Jeffrey J. Blanchette, Timothy J. Spets, Loren J. Rittle | 1999-10-19 |
| 5764699 | Method and apparatus for providing adaptive modulation in a radio communication system | Michael L. Needham, Stephen S. Gilbert | 1998-06-09 |
| 5636230 | Method for eliminating a receiving data unit as a source of excessive resend requests | Lawrence J. Marturano, Michael L. Needham | 1997-06-03 |
| 5598417 | Dynamic control of a data channel in a TDM wireless communication system | Michael L. Needham | 1997-01-28 |
| 5594738 | Time slot allocation method | Michael L. Needham | 1997-01-14 |
| 5581802 | Method for providing service access information in a communication system | Paul M. Erickson, Garry C. Hess, Stuart W. Thro | 1996-12-03 |
| 5559810 | Communication of data reception history information | Stephen S. Gilbert, Michael L. Needham | 1996-09-24 |
| 5533004 | Method for providing and selecting amongst multiple data rates in a time division multiplexed system | Steven C. Jasper | 1996-07-02 |
| 5517507 | Notification by energy burst of messages with unacceptable quality | Michael L. Needham, Lawrence J. Marturano, Mark A. Gannon | 1996-05-14 |
| 5515379 | Time slot allocation method | Michael L. Needham | 1996-05-07 |
| 5481537 | Transmission signalling technique for a reservation request | Michael L. Needham | 1996-01-02 |
| 5477550 | Method for communicating data using a modified SR-ARQ protocol | Michael L. Needham, Timothy Wilson | 1995-12-19 |
| 5299199 | Channel re-assignment method for time division multiple access (TDMA) trunked systems | Timothy Wilson | 1994-03-29 |
| 5295140 | Method for multi-purpose utilization of resources in a communication system | Michael L. Needham | 1994-03-15 |
| 5278833 | Method for providing reserved communication access using multiple random access resources | Michael L. Needham | 1994-01-11 |
| 5257402 | Method for effecting handoff in a multi-site communication system | — | 1993-10-26 |
| 5193091 | TDM communication system for a wide area site and a plurality of local sites | Bradley M. Hiben, Anthony P. van den Heuvel | 1993-03-09 |
| 5179559 | Handoff method for a cellular system | Bradley M. Hiben, Anthony P. van den Heuvel | 1993-01-12 |
| 5142533 | Method for controlling the scheduling of multiple access to communication resources | Michael L. Needham | 1992-08-25 |
| 5103465 | Symbol synchronization circuit | Mark J. Marsan | 1992-04-07 |
| 5038342 | TDM/FDM communication system supporting both TDM and FDM-only communication units | Lawrence M. Mohl, Michael D. Kotzin, Anthony P. van den Heuvel | 1991-08-06 |