Issued Patents All Time
Showing 76–96 of 96 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5559886 | Method of carrying out an authentication check between a base station and a mobile station in a mobile radio system | Paul W. Dent, Jan E. A. S. Dahlin | 1996-09-24 |
| 5546443 | Communication management technique for a radiotelephone system including microcells | — | 1996-08-13 |
| 5539748 | Enhanced sleep mode in radiocommunication systems | — | 1996-07-23 |
| 5537434 | Frequency hopping control channel in a radio communication system | Bengt Persson, Bjorn Gudmundson, Hakan Eriksson | 1996-07-16 |
| 5404355 | Method for transmitting broadcast information in a digital control channel | — | 1995-04-04 |
| 5390245 | Method of carrying out an authentication check between a base station and a mobile station in a mobile radio system | Paul W. Dent, Jan. E. A. S. Dahlin | 1995-02-14 |
| 5375123 | Allocation of channels using interference estimation | Claes Andersson, Hakan Eriksson, Magnus E. Madfors, Bengt Persson | 1994-12-20 |
| 5353332 | Method and apparatus for communication control in a radiotelephone system | Walter Müller | 1994-10-04 |
| 5329558 | Method of synchronizing a radio receiver with an incoming radio signal | Lars G. Larsson, Jon K. Ugland | 1994-07-12 |
| 5282250 | Method of carrying out an authentication check between a base station and a mobile station in a mobile radio system | Paul W. Dent, Jan E. A. S. Dahlin | 1994-01-25 |
| 5237612 | Cellular verification and validation system | — | 1993-08-17 |
| 5235632 | Mobile telephony system intended for indoor and outdoor subscriber use | — | 1993-08-10 |
| 5230077 | Method of reducing the power requirements in a mobile radio receiver | — | 1993-07-20 |
| 5230003 | Decoding system for distinguishing different types of convolutionally-encoded signals | Paul W. Dent | 1993-07-20 |
| 5212803 | Method for reducing equalizer usage in mobile radio communication systems | Jan E. Uddenfeldt | 1993-05-18 |
| 5142539 | Method of processing a radio signal message | Jan E. A. S. Dahlin, Paul W. Dent | 1992-08-25 |
| 5093848 | Method of controlling the frequency of a coherent radio receiver and apparatus for carrying out the method | — | 1992-03-03 |
| 5088108 | Cellular digital mobile radio system and method of transmitting information in a digital cellular mobile radio system | Jan E. Uddenfeldt | 1992-02-11 |
| 5081671 | Method of reducing blockages in handing over calls in a mobile, cellular telephone system | Jan E. Uddenfeldt, Bengt Persson, Olov H. Eriksson | 1992-01-14 |
| 4980907 | Telecommunication combination comprising a telepoint and a portable radio terminal | Bengt Persson, Dag E. Akerberg | 1990-12-25 |
| 4947409 | Apparatus for correcting frequency in a coherent receiver | Bo Hedberg, Jan-Erik Stiernvall | 1990-08-07 |