Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8260218 | Mixer circuit and RF transmitter using such mixer circuit | Stefan Van Waasen, Anna-Maria Lann, Paul Stephansson, Fredrik Pusa | 2012-09-04 |
| 7230490 | Voltage to current converter and method for converting | — | 2007-06-12 |
| 6943639 | Arrangement for low power clock generation | — | 2005-09-13 |
| 6154647 | Method and arrangement for increasing the range for a telecommunication network in a telecommunication system | Georg Chambert | 2000-11-28 |
| 5559886 | Method of carrying out an authentication check between a base station and a mobile station in a mobile radio system | Paul W. Dent, Alex Krister Raith | 1996-09-24 |
| 5434798 | Reconfiguration in a cellular communications network | Monica B. K. Madebrink, Walter Ghisler, Ake L. Ramstedt, Anders Hoff, Sven Nordstrom +6 more | 1995-07-18 |
| 5420911 | Cellular telephone for monitoring analog and digital control channels | Walter G. A. Mueller, Walter Ghisler | 1995-05-30 |
| 5293423 | Synchronizing method in a mobile radio system | Walter Ghisler, Bengt Persson | 1994-03-08 |
| 5282250 | Method of carrying out an authentication check between a base station and a mobile station in a mobile radio system | Paul W. Dent, Alex Krister Raith | 1994-01-25 |
| 5257401 | Method of maintaining an established connection in a mobile radio system comprising both analog and digital radio channels | Jan E. Uddenfeldt | 1993-10-26 |
| 5200957 | Mobile assisted handoff | — | 1993-04-06 |
| 5199031 | Method and system for uniquely identifying control channel time slots | — | 1993-03-30 |
| 5182753 | Method of transmitting signaling messages in a mobile radio communication system | Krister A. Raith | 1993-01-26 |
| 5142539 | Method of processing a radio signal message | Alex Krister Raith, Paul W. Dent | 1992-08-25 |
| 5140627 | Handoff procedure that minimizes disturbances to DTMF signalling in a cellular radio system | — | 1992-08-18 |
| 5119397 | Combined analog and digital cellular telephone system having a secondary set of control channels | John R. Bohaychuk | 1992-06-02 |
| 5042082 | Mobile assisted handoff | — | 1991-08-20 |