Assignee
AT & T WIRELESS SERVICES INC
US·214 granted patents·4 pending applications·19,530 citations·filing 1994–2004
Top patents by PatentIndex Score
218 records- 0198US6879825B1Method for programming a mobile station using a permanent mobile station identifierAT & T WIRELESS SERVICES INC·Filed 2000·Granted Apr 12, 2005·228 cites·3 claims
- 0298US6359923B1Highly bandwidth efficient communicationsAT & T WIRELESS SERVICES INC·Filed 1997·Granted Mar 19, 2002·361 cites·30 claims
- 0398US6185258B1Transmitter diversity technique for wireless communicationsAT & T WIRELESS SERVICES INC·Filed 1998·Granted Feb 6, 2001·390 cites·30 claims
- 0498US5933421AMethod for frequency division duplex communicationsAT & T WIRELESS SERVICES INC·Filed 1997·Granted Aug 3, 1999·721 cites·41 claims
- 0597US6782039B2Vertical adaptive antenna array for a discrete multitone spread spectrum communications systemAT & T WIRELESS SERVICES INC·Filed 2003·Granted Aug 24, 2004·70 cites·20 claims
- 0697US6744383B1Intelligent roadway systemAT & T WIRELESS SERVICES INC·Filed 2002·Granted Jun 1, 2004·151 cites·14 claims
- 0797US6621851B1Priority messaging method for a discrete multitone spread spectrum communications systemAT & T WIRELESS SERVICES INC·Filed 2000·Granted Sep 16, 2003·185 cites·45 claims
- 0897US6480522B1Method of polling second stations for functional quality and maintenance data in a discrete multitone spread spectrum communications systemAT & T WIRELESS SERVICES INC·Filed 2000·Granted Nov 12, 2002·157 cites·44 claims
- 0997US6404388B1Method and apparatus for enhanced 911 location using power control in a wireless systemAT & T WIRELESS SERVICES INC·Filed 2000·Granted Jun 11, 2002·128 cites·25 claims
- 1097US6393014B1Method and system for providing data communication with a mobile stationAT & T WIRELESS SERVICES INC·Filed 1997·Granted May 21, 2002·342 cites·37 claims
- 1197US6201797B1High bandwidth delivery and internet access for airborne passengersAT & T WIRELESS SERVICES INC·Filed 1997·Granted Mar 13, 2001·314 cites·14 claims
- 1297US6122503AMethod and apparatus for over-the-air programming of telecommunication servicesAT & T WIRELESS SERVICES INC·Filed 1996·Granted Sep 19, 2000·274 cites·10 claims
- 1397US5933778AMethod and apparatus for providing telecommunication services based on a subscriber profile updated by a personal information managerAT & T WIRELESS SERVICES INC·Filed 1996·Granted Aug 3, 1999·586 cites·33 claims
- 1497US5790551APacket data transmission using dynamic channel assignmentAT & T WIRELESS SERVICES INC·Filed 1995·Granted Aug 4, 1998·338 cites·20 claims
- 1597US5732354AMethod and apparatus for determining the location of a mobile telephoneAT & T WIRELESS SERVICES INC·Filed 1995·Granted Mar 24, 1998·406 cites·36 claims
- 1697US5675629ACordless cellular system base stationAT & T WIRELESS SERVICES INC·Filed 1995·Granted Oct 7, 1997·467 cites·21 claims
- 1796US6775329B2Transmitter diversity technique for wireless communicationsAT & T WIRELESS SERVICES INC·Filed 2000·Granted Aug 10, 2004·81 cites·37 claims
- 1896US6741635B2Near-optimal low-complexity decoding of space-time codes for fixed wireless applicationsAT & T WIRELESS SERVICES INC·Filed 2002·Granted May 25, 2004·69 cites·11 claims
- 1996US6636749B2Method and apparatus for providing power and wireless protocol capability to a wireless device, such as a wireless phoneAT & T WIRELESS SERVICES INC·Filed 2001·Granted Oct 21, 2003·139 cites·78 claims
- 2096US6611692B2Cordless cellular systemAT & T WIRELESS SERVICES INC·Filed 2002·Granted Aug 26, 2003·157 cites·8 claims
- 2196US6591098B1System and method for using a temporary electronic serial number for over-the-air activation of a mobile deviceAT & T WIRELESS SERVICES INC·Filed 2000·Granted Jul 8, 2003·298 cites·32 claims
- 2296US6529593B2Prepaid phone service for both wired and wireless telecommunication devicesAT & T WIRELESS SERVICES INC·Filed 2000·Granted Mar 4, 2003·125 cites·10 claims
- 2396US5903845APersonal information manager for updating a telecommunication subscriber profileAT & T WIRELESS SERVICES INC·Filed 1996·Granted May 11, 1999·532 cites·32 claims
- 2495US6590533B2Method and apparatus for enhanced 911 location using power control in a wireless systemAT & T WIRELESS SERVICES INC·Filed 2002·Granted Jul 8, 2003·81 cites·23 claims
- 2595US6580914B1Method and apparatus for automatically providing location-based information content on a wireless deviceAT & T WIRELESS SERVICES INC·Filed 1998·Granted Jun 17, 2003·245 cites·24 claims
- 2695US6459740B1Maximum ratio transmissionAT & T WIRELESS SERVICES INC·Filed 1998·Granted Oct 1, 2002·107 cites·4 claims
- 2795US6230009B1Method and apparatus for alerting a station in one network of a requested communication from a second networkAT & T WIRELESS SERVICES INC·Filed 1996·Granted May 8, 2001·230 cites·17 claims
- 2895US6223042B1Method of intelligent roaming using network informationAT & T WIRELESS SERVICES INC·Filed 1997·Granted Apr 24, 2001·272 cites·56 claims
- 2995US6014559AMethod and system for delivering a voice mail notification to a private base station using cellular phone networkAT & T WIRELESS SERVICES INC·Filed 1997·Granted Jan 11, 2000·293 cites·31 claims
- 3095US5724660AMethod and apparatus for locating a mobile station by comparing calculated location area with GPS coordinatesAT & T WIRELESS SERVICES INC·Filed 1996·Granted Mar 3, 1998·441 cites·32 claims
- 3194US6775549B2Method for self-calibration of a wireless communication systemAT & T WIRELESS SERVICES INC·Filed 2002·Granted Aug 10, 2004·62 cites·17 claims
- 3294US6507866B1E-mail usage pattern detectionAT & T WIRELESS SERVICES INC·Filed 1999·Granted Jan 14, 2003·474 cites·8 claims
- 3394US5875395ASecure equipment automation using a personal base stationAT & T WIRELESS SERVICES INC·Filed 1996·Granted Feb 23, 1999·223 cites·19 claims
- 3494US5832367AMethod for selecting a wireless communications service provider in a multi-service provider environmentAT & T WIRELESS SERVICES INC·Filed 1997·Granted Nov 3, 1998·110 cites·9 claims
- 3593US6628194B1Filtered in-box for voice mail, e-mail, pages, web-based information, and faxesAT & T WIRELESS SERVICES INC·Filed 1999·Granted Sep 30, 2003·236 cites·16 claims
- 3693US6571094B1Method and system for remote call forwarding of telephone calls from an IP connectionAT & T WIRELESS SERVICES INC·Filed 2000·Granted May 27, 2003·74 cites·19 claims
- 3793US6490445B1Customer activation system for cellular networkAT & T WIRELESS SERVICES INC·Filed 2000·Granted Dec 3, 2002·66 cites·10 claims
- 3893US6282421B1System and method for automatic registration notification for over-the-air activationAT & T WIRELESS SERVICES INC·Filed 2000·Granted Aug 28, 2001·56 cites·30 claims
- 3993US6035193ATelephone system having land-line-supported private base station switchable into cellular networkAT & T WIRELESS SERVICES INC·Filed 1996·Granted Mar 7, 2000·214 cites·46 claims
- 4093US5872814AMethod for linearization of RF transmission electronics using baseband pre-distortion in T/R compensation pilot signalsAT & T WIRELESS SERVICES INC·Filed 1997·Granted Feb 16, 1999·128 cites·12 claims
- 4192US6990182B2Prepaid phone service for both wired and wireless telecommunication devicesAT & T WIRELESS SERVICES INC·Filed 2002·Granted Jan 24, 2006·66 cites·22 claims
- 4292US6934530B2Virtual subscriber networkAT & T WIRELESS SERVICES INC·Filed 2002·Granted Aug 23, 2005·79 cites·20 claims
- 4392US6560455B2Roaming authorization systemAT & T WIRELESS SERVICES INC·Filed 2002·Granted May 6, 2003·98 cites·40 claims
- 4492US6317684B1Method and apparatus for navigation using a portable communication deviceAT & T WIRELESS SERVICES INC·Filed 1999·Granted Nov 13, 2001·455 cites·22 claims
- 4592US6188736B1Near-optimal low-complexity decoding of space-time codes for fixed wireless applicationsAT & T WIRELESS SERVICES INC·Filed 1998·Granted Feb 13, 2001·86 cites·4 claims
- 4692US6006087AMethod and system for delivering a voice mail notification to a subscriber using cellular phone networkAT & T WIRELESS SERVICES INC·Filed 1997·Granted Dec 21, 1999·125 cites·18 claims
- 4792US5809083ADifferentially encoded pilot word system and method for wireless transmissions of digital dataAT & T WIRELESS SERVICES INC·Filed 1994·Granted Sep 15, 1998·123 cites·25 claims
- 4891US6782259B2Method for selecting a preferable wireless communication service provider in a multi-service provider environmentAT & T WIRELESS SERVICES INC·Filed 2002·Granted Aug 24, 2004·53 cites·44 claims
- 4991US6751475B1Shared-revenue billing system for transmission of wireless data from a vehicleAT & T WIRELESS SERVICES INC·Filed 2000·Granted Jun 15, 2004·72 cites·47 claims
- 5091US6681118B2Method of providing cellular and landline cordless service using a dual mode mobile telephoneAT & T WIRELESS SERVICES INC·Filed 2002·Granted Jan 20, 2004·59 cites·7 claims
Showing the top 50 of 218 patent records by PatentIndex Score.
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