Assignee
ERICSSON INC
US·1,421 granted patents·20 pending applications·99,635 citations·filing 1994–2014
Top patents by PatentIndex Score
1,441 records- 0199US6711408B1Position assisted handoff within a wireless communications networkERICSSON INC·Filed 2000·Granted Mar 23, 2004·340 cites·23 claims
- 0299US6566944B1Current modulator with dynamic amplifier impedance compensationERICSSON INC·Filed 2002·Granted May 20, 2003·259 cites·68 claims
- 0399US6472934B1Triple class E Doherty amplifier topology for high efficiency signal transmittersERICSSON INC·Filed 2000·Granted Oct 29, 2002·207 cites·21 claims
- 0499US6437682B1Pressure sensitive direction switchesERICSSON INC·Filed 2001·Granted Aug 20, 2002·252 cites·29 claims
- 0599US6396341B1Class E Doherty amplifier topology for high efficiency signal transmittersERICSSON INC·Filed 2000·Granted May 28, 2002·190 cites·24 claims
- 0699US6393284B1Systems and methods for searching for TDMA signals in cellular radiotelephonesERICSSON INC·Filed 2000·Granted May 21, 2002·186 cites·6 claims
- 0799US6285251B1Amplification systems and methods using fixed and modulated power supply voltages and buck-boost controlERICSSON INC·Filed 2000·Granted Sep 4, 2001·239 cites·58 claims
- 0899US6157811ACellular/satellite communications system with improved frequency re-useERICSSON INC·Filed 1996·Granted Dec 5, 2000·330 cites·16 claims
- 0999US6011973AMethod and apparatus for restricting operation of cellular telephones to well delineated geographical areasERICSSON INC·Filed 1996·Granted Jan 4, 2000·583 cites·11 claims
- 1098US6625457B1Mobile terminal with location databaseERICSSON INC·Filed 2000·Granted Sep 23, 2003·256 cites·2 claims
- 1198US6577199B2Harmonic matching network for a saturated amplifierERICSSON INC·Filed 2000·Granted Jun 10, 2003·108 cites·23 claims
- 1298US6556819B2Safe zones for portable electronic devicesERICSSON INC·Filed 2002·Granted Apr 29, 2003·189 cites·21 claims
- 1398US6369651B2Bidirectional direct current power conversion circuits and methodsERICSSON INC·Filed 2001·Granted Apr 9, 2002·123 cites·10 claims
- 1498USD454849SPortable communications deviceERICSSON INC·Filed 2001·Granted Mar 26, 2002·171 cites·1 claims
- 1598US6360101B1Cellular phone that displays or sends messages upon its arrival at a predetermined locationERICSSON INC·Filed 1998·Granted Mar 19, 2002·421 cites·22 claims
- 1698US6360102B1System and method for defining a subscriber location privacy profileERICSSON INC·Filed 1998·Granted Mar 19, 2002·401 cites·26 claims
- 1798US6297737B1Object locating systemERICSSON INC·Filed 2000·Granted Oct 2, 2001·330 cites·27 claims
- 1898US6259436B1Apparatus and method for determining selection of touchable items on a computer touchscreen by an imprecise touchERICSSON INC·Filed 1998·Granted Jul 10, 2001·535 cites·59 claims
- 1998US6243080B1Touch-sensitive panel with selectorERICSSON INC·Filed 1998·Granted Jun 5, 2001·506 cites·17 claims
- 2098US6233448B1System, method and apparatus for automatic feature activation/deactivation based upon positioningERICSSON INC·Filed 1998·Granted May 15, 2001·393 cites·31 claims
- 2198USD432511SPersonal communication deviceERICSSON INC·Filed 2000·Granted Oct 24, 2000·186 cites·1 claims
- 2298US6138003ASystem and method for authorization of location servicesERICSSON INC·Filed 1997·Granted Oct 24, 2000·466 cites·20 claims
- 2398US6133788AHybrid Chireix/Doherty amplifiers and methodsERICSSON INC·Filed 1998·Granted Oct 17, 2000·231 cites·18 claims
- 2498US6069588ASystems and methods for coaxially coupling an antenna to a radiotelephone through a window and amplifying signals adjacent and inside the windowERICSSON INC·Filed 1999·Granted May 30, 2000·314 cites·11 claims
- 2598US6052560ASatellite system utilizing a plurality of air interface standards and method employing sameERICSSON INC·Filed 1997·Granted Apr 18, 2000·334 cites·62 claims
- 2698US6052586AFixed and mobile satellite radiotelephone systems and methods with capacity sharingERICSSON INC·Filed 1997·Granted Apr 18, 2000·358 cites·26 claims
- 2798US6043626AAuxiliary battery holder with multicharger functionalityERICSSON INC·Filed 1997·Granted Mar 28, 2000·1.3k cites·12 claims
- 2898US5968198ADecoder utilizing soft information output to minimize error ratesERICSSON INC·Filed 1996·Granted Oct 19, 1999·226 cites·31 claims
- 2997US7149534B2Peer to peer information exchange for mobile communications devicesERICSSON INC·Filed 2001·Granted Dec 12, 2006·152 cites·44 claims
- 3097US6920315B1Multiple antenna impedance optimizationERICSSON INC·Filed 2000·Granted Jul 19, 2005·366 cites·7 claims
- 3197US6865218B1Multipath interference reduction for a CDMA systemERICSSON INC·Filed 2000·Granted Mar 8, 2005·131 cites·18 claims
- 3297US6823170B1Satellite communications system using multiple earth stationsERICSSON INC·Filed 2000·Granted Nov 23, 2004·111 cites·35 claims
- 3397US6768727B1Fast forward link power control for CDMA systemERICSSON INC·Filed 2000·Granted Jul 27, 2004·134 cites·23 claims
- 3497US6553229B1Signal scanning systems and methods for multiple-mode cellular radiotelephonesERICSSON INC·Filed 2000·Granted Apr 22, 2003·75 cites·15 claims
- 3597US6480558B1Synchronization and cell search methods and apparatus for wireless communicationsERICSSON INC·Filed 1999·Granted Nov 12, 2002·262 cites·50 claims
- 3697US6433801B1Method and apparatus for using a touch screen display on a portable intelligent communications deviceERICSSON INC·Filed 1997·Granted Aug 13, 2002·465 cites·32 claims
- 3797USD460057SPortable communications deviceERICSSON INC·Filed 2001·Granted Jul 9, 2002·92 cites·1 claims
- 3897US6380802B1Transmitter using input modulation for envelope restoration scheme for linear high-efficiency power amplificationERICSSON INC·Filed 2000·Granted Apr 30, 2002·137 cites·21 claims
- 3997US6359506B1Linear modulation using a linear and a non-linear amplifierERICSSON INC·Filed 2000·Granted Mar 19, 2002·100 cites·71 claims
- 4097US6311069B1System and method for alerting a mobile subscriber being positionedERICSSON INC·Filed 1999·Granted Oct 30, 2001·327 cites·24 claims
- 4197US6252543B1Location system combining ranging measurements from GPS and cellular networksERICSSON INC·Filed 1999·Granted Jun 26, 2001·337 cites·26 claims
- 4297US6205334B1Accelerated scanning of cellular channels by cellular radiotelephonesERICSSON INC·Filed 1998·Granted Mar 20, 2001·214 cites·4 claims
- 4397US6134437ADual-mode satellite/cellular phone architecture with physically separable modeERICSSON INC·Filed 1997·Granted Oct 17, 2000·326 cites·20 claims
- 4497US6127663AElectronics cabinet cooling systemERICSSON INC·Filed 1998·Granted Oct 3, 2000·160 cites·30 claims
- 4597US6119014ASystem and method for displaying short messages depending upon location, priority, and user-defined indicatorsERICSSON INC·Filed 1998·Granted Sep 12, 2000·546 cites·7 claims
- 4697US6112094AOrthogonal frequency hopping pattern re-use schemeERICSSON INC·Filed 1998·Granted Aug 29, 2000·168 cites·11 claims
- 4797US6104003AElectronics cabinet cooling systemERICSSON INC·Filed 1999·Granted Aug 15, 2000·263 cites·15 claims
- 4897US6044485ATransmitter method and transmission system using adaptive coding based on channel characteristicsERICSSON INC·Filed 1997·Granted Mar 28, 2000·188 cites·21 claims
- 4997US6041222ASystems and methods for sharing reference frequency signals within a wireless mobile terminal between a wireless transceiver and a global positioning system receiverERICSSON INC·Filed 1997·Granted Mar 21, 2000·246 cites·20 claims
- 5097US6038148ASelf-driven synchronous rectification schemeERICSSON INC·Filed 1998·Granted Mar 14, 2000·280 cites·29 claims
Showing the top 50 of 1,441 patent records by PatentIndex Score.
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