US Patent No: 5,959,580

Number of patents in Portfolio can not be more than 2000

Communications localization system

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and apparatus for locating a mobile radio communications transceiver in a cellular-telephone or cell-like communications system uses a simplified system for passive monitoring of the signals emitted by the transceiver. A single base station can determine a line of bearing to the remote transceiver. This line of bearing is then combined with collateral, position-sensitive information to determine the likely location of the transceiver. The present invention has particular applicability to roadway transportation in that it facilitates enhanced emergency (9-1-1) services and roadside assistance in response to calls for assistance, and it permits the passive monitoring of traffic flow.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TRUEPOSITION, INC.BERWYN, PA168

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hinkle, Jr Charles J Vienna, VA 3 552
Maloney, John E Springfield, VA 29 2189
Stevenson, James O Fairfax, VA 7 956

Cited Art Landscape

Patent Info (Count) # Cites Year
 
TELEMATICS CORPORATION (1)
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Other [Check patent profile for assignment information] (2)
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* 5,264,857 Method and apparatus for signal modulation and detection 8 1991
 
TRACKMOBILE A CA CORP. (1)
* 5,218,367 Vehicle tracking system 398 1992
 
MULOC, INC. C/O CHARLES J. HINKLE, JR. (1)
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METS, INC. (1)
* 5,003,317 Stolen vehicle recovery system 168 1989
 
Mayday U.S.A. Inc. (1)
* 5,225,809 Personal security system and apparatus therefor 27 1990
 
TRIMBLE NAVIGATION LIMITED (1)
* 5,319,374 Precise universal time for vehicles 148 1993
 
ALLEN TELECOM LLC (1)
* 5,317,323 Passive high accuracy geolocation system and method 268 1993
 
RANGEMASTER GOLF ENTERPRISES, A GENERAL PARTNERSHIP OF CA (1)
* 5,163,004 Position tracking system 49 1991
 
E-SYSTEMS, INC. (1)
* 5,465,289 Cellular based traffic sensor system 157 1993
 
IRON OAKS TECHNOLOGIES, LLC (1)
* 5,299,132 Vehicle locating and communicating method and apparatus using cellular telephone network 398 1992
 
HUGHES ELECTRONICS CORPORATION (1)
* 5,166,694 Vehicle location system having enhanced position location processing 97 1991
 
RACKJACK LTD., A MI LIMITED PARTNERSHIP (1)
* 4,742,357 Stolen object location system 235 1986
 
R & D Associates (1)
* 5,045,860 Method and arrangement for probabilistic determination of a target location 39 1990
 
TELE ATLAS NORTH AMERICA, INC. (1)
* 5,311,195 Combined relative and absolute positioning method and apparatus 230 1991
 
Precision Tracking FM, Inc. (1)
* 5,119,104 Location system adapted for use in multipath environments 459 1990
 
NORTEL NETWORKS LIMITED (1)
* 5,293,642 Method of locating a mobile station 273 1990
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (8)
* 6,424,837 Automated testing for cellular telephone system including emergency positioning 26 1999
6,891,500 Method and apparatus for geolocating a wireless communications device 26 2002
* 2003/0176,196 Method and apparatus for geolocating a wireless communications device 13 2002
7,057,556 Method and apparatus for geolocating a wireless communications device 22 2005
* 2005/0184,907 Method and apparatus for geolocating a wireless communications device 5 2005
7,256,737 Method and apparatus for geolocating a wireless communications device 15 2006
* 2006/0187,119 Method and apparatus for geolocating a wireless communications device 1 2006
* 2007/0072,626 System and Method for Aggregating Information to Determine a User's Location 8 2006
 
COMMSCOPE TECHNOLOGIES LLC (38)
7,519,373 System and method for geo-location of mobile appliances using diverse standard tasking and reporting 2 2003
* 2006/0111,124 System and method for geo-location of mobile appliances using diverse standard tasking and reporting 3 2003
7,429,914 System and method for CDMA geolocation 4 2004
* 2005/0192,026 System and method for CDMA geolocation 23 2004
8,532,024 Method and apparatus for determining coupled path loss 2 2006
8,320,264 Method and apparatus for determining path loss by active signal detection 0 2006
8,331,953 System and method for estimating the location of a mobile device 4 2007
* 2008/0274,750 SYSTEM AND METHOD FOR ESTIMATING THE LOCATION OF A MOBILE DEVICE 56 2007
8,170,585 Ranging in UMTS networks 2 2007
* 2009/0124,266 Ranging in UMTS networks 7 2007
8,447,319 System and method for locating UMTS user equipment using measurement reports 1 2008
8,073,463 System and method of UMTS UE location using uplink dedicated physical control channel and downlink synchronization channel 4 2008
8,160,609 System and method for multiple range estimation location 3 2008
8,239,483 System and method for generic application of location determination for network attached devices 0 2009
8,462,769 System and method for managing created location contexts in a location server 0 2009
8,391,884 System and method for managing created location contexts in a location server 0 2009
8,762,519 System and method for providing location services for multiple access networks from a single location server 0 2009
8,340,683 System and method for a high throughput GSM location solution 0 2009
* 2011/0070,892 SYSTEM AND METHOD FOR A HIGH THROUGHPUT GSM LOCATION SOLUTION 0 2009
8,289,210 Location measurement acquisition adaptive optimization 2 2009
8,188,920 Location measurement acquisition optimization with Monte Carlo simulation 1 2009
* 2011/0090,122 LOCATION MEASUREMENT ACQUISITION ADAPTIVE OPTIMIZATION 2 2009
* 2011/0090,121 LOCATION MEASUREMENT ACQUISITION OPTIMIZATION WITH MONTE CARLO SIMULATION 2 2009
8,428,617 Method and apparatus to select an optimum site and/or sector to provide geo-location data 0 2010
* 2011/0092,226 Method and Apparatus to Select an Optimum Site and/or Sector to Provide Geo-Location Data 11 2010
9,331,798 System and method for mobile location by proximity detection 0 2011
8,249,622 System and method for multiple range estimation location 0 2011
* 2011/0170,444 SYSTEM AND METHOD FOR MULTIPLE RANGE ESTIMATION LOCATION 0 2011
8,489,122 System and method for total flight time ratio pattern matching 2 2011
8,958,754 System and method for sub-coherent integration for geo-location using weak or intermittent signals 0 2011
8,331,956 System and method of UMTS UE location using uplink dedicated physical control channel and downlink synchronization channel 1 2011
8,380,220 System and method for generating a location estimate using a method of intersections 0 2011
8,897,813 LTE user equipment positioning system and method 0 2012
8,526,968 System and method for mobile location by dynamic clustering 0 2012
8,380,222 System and method for multiple range estimation location 10 2012
8,463,293 System and method for a high throughput GSM location solution 0 2012
9,423,508 Autonomous Transmit Chain Delay Measurements 0 2013
9,097,784 System and method to collect and modify calibration data 0 2014
 
NEXTNAV, LLC (15)
8,130,141 Wide area positioning system 24 2009
9,057,606 Wide area positioning system 0 2011
8,643,540 Wide area positioning system 1 2012
8,629,803 Wide area positioning system 1 2012
9,035,829 Wide area positioning systems and methods 0 2012
9,119,165 Coding in a wide area positioning system (WAPS) 2 2012
8,917,209 Coding in a wide area positioning system (WAPS) 0 2012
9,372,266 Cell organization and transmission schemes in a wide area positioning system (WAPS) 0 2012
9,291,712 Cell organization and transmission schemes in a wide area positioning system (WAPS) 0 2012
9,176,217 Cell organization and transmission schemes in a wide area positioning system (WAPS) 0 2012
9,247,392 Systems and methods for location positioning of user device 0 2013
9,390,279 Systems and methods for providing conditional access to transmitted information 0 2013
9,286,490 Systems and methods for providing conditional access to transmitted information 0 2013
8,874,398 Wide area positioning system 0 2013
9,408,024 Wide area positioning system 0 2013
 
CommScope Technologies LLP (1)
9,173,060 System and method for mobile location by dynamic clustering 0 2014
 
KSI INC. (1)
6,366,241 Enhanced determination of position-dependent signal characteristics of a wireless transmitter 89 2001
 
ANDREW LLC (7)
8,032,149 Tasking and reporting method and implementation for wireless appliance location systems 14 2002
7,162,252 Method and apparatus for supporting multiple wireless carrier mobile station location requirements with a common network overlay location system 7 2003
* 2008/0285,505 SYSTEM AND METHOD FOR NETWORK TIMING RECOVERY IN COMMUNICATIONS NETWORKS 11 2007
7,933,610 Method and apparatus to select an optimum site and/or sector to provide geo-location data 1 2007
* 2008/0293,435 Method and apparatus to select an optimum site and/or sector to provide geo-location data 5 2007
8,400,358 Method to modify calibration data used to locate a mobile unit 2 2009
7,949,340 Method and system for applying wireless geolocation technology 0 2010
 
WISCONSIN ALUMNI RESEARCH FOUNDATION (1)
8,849,229 Electrically small, super directive antennas 0 2012
 
Allen Telecom (1)
6,920,329 Method and system for applying wireless geolocation technology 62 2002
 
XONE, INC. (2)
8,385,964 Methods and apparatuses for geospatial-based sharing of information by multiple devices 42 2011
8,712,441 Methods and systems for temporarily sharing position data between mobile-device users 13 2013
 
PURE INNOVATIONS, INC. (1)
* 2011/0080,262 LOCATION FINDER SYSTEM 4 2005
 
ALLEN TELECOM LLC (2)
7,668,552 Method and system for applying wireless geolocation technology 0 2005
* 2005/0164,712 Method and system for applying wireless geolocation technology 50 2005
 
Alpine Electronics, Inc. (2)
* 6,819,268 Received information processing apparatus 33 2001
* 2002/0067,288 Received information processing apparatus 5 2001
 
APPLE INC. (38)
8,060,389 System and method for anonymous location based services 92 2005
8,538,685 System and method for internet connected service providing heterogeneous mobile systems with situational location relevant content 11 2007
8,489,669 Mobile data processing system moving interest radius 24 2007
8,073,565 System and method for alerting a first mobile data processing system nearby a second mobile data processing system 42 2007
8,977,294 Securely locating a device 1 2007
8,275,352 Location-based emergency information 8 2008
8,355,862 Graphical user interface for presenting location information 25 2008
8,204,684 Adaptive mobile device navigation 36 2008
9,109,904 Integration of map services and user applications in a mobile device 2 2008
8,332,402 Location based media items 26 2008
8,175,802 Adaptive route guidance based on preferences 37 2008
8,762,056 Route reference 2 2008
8,290,513 Location-based services 25 2008
9,250,092 Map service with network-based query for search 1 2008
8,644,843 Location determination 6 2008
8,311,526 Location-based categorical information services 16 2008
8,774,825 Integration of map services with user applications in a mobile device 14 2008
9,066,199 Location-aware mobile device 2 2008
8,369,867 Location sharing 20 2008
8,108,144 Location based tracking 38 2008
8,359,643 Group formation using anonymous broadcast information 29 2008
8,260,320 Location specific content 20 2008
8,666,367 Remotely locating and commanding a mobile device 3 2009
8,660,530 Remotely receiving and communicating commands to a mobile device for execution by the mobile device 23 2009
8,670,748 Remotely locating and commanding a mobile device 0 2010
8,031,050 System and method for situational location relevant invocable speed reference 12 2010
8,930,233 System and method for anonymous location based services 0 2011
9,100,793 System and method for alerting a first mobile data processing system nearby a second mobile data processing system 3 2011
8,924,144 Location based tracking 1 2012
8,548,735 Location based tracking 5 2012
8,694,026 Location based services 2 2012
8,963,686 System and method for situational location relevant invocable speed reference 5 2012
8,738,039 Location-based categorical information services 0 2012
8,984,059 Mobile data processing system moving interest radius 0 2013
9,131,342 Location-based categorical information services 0 2014
9,310,206 Location based tracking 0 2014
9,317,867 System and method for situational location relevant invocable speed reference 2 2015
9,414,198 Location-aware mobile device 0 2015
 
FERNANDEZ, DENNIS S. (3)
7,899,938 Integrated medical sensor and messaging system and method 1 2001
7,548,961 Integrated vehicular sensor and messaging system and method 6 2001
7,599,995 Integrated vehicular sensor and messaging system and method 4 2006
 
ANDREW CORPORATION (5)
6,871,077 System and method for geolocating a wireless mobile unit from a single base station using repeatable ambiguous measurements 57 2001
6,952,158 Pseudolite positioning system and method 51 2001
* 2002/0094,821 Pseudolite positioning system and method 23 2001
6,845,240 System and method for analog cellular radio geolocation 58 2001
* 2002/0094,824 Method and system for applying wireless geolocation technology 32 2002
 
Alaven, Inc. (3)
7,548,610 Voice-activated geographically based telephone routing system and method 7 2003
* 2003/0179,862 Voice-activated geographically based telephone routing system and method 5 2003
* 2009/0225,959 VOICE-ACTIVATED GEOGRAPHICALLY BASED TELEPHONE ROUTING SYSTEM AND METHOD 1 2009
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (2)
* 7,139,252 System and method for aggregating information to determine users' locations 43 2001
* 2002/0145,984 System and method for aggregating information to determine users' locations 18 2001
 
GARMIN INTERNATIONAL, INC. (2)
* 7,428,450 Method and system for using a database and GPS position data to generate bearing data 8 2004
* 2008/0297,397 METHOD AND SYSTEM FOR USING A DATABASE AND GPS POSITION DATA TO GENERATE BEARING DATA 5 2008
 
GARMIN SWITZERLAND GMBH (1)
8,059,030 Method and system for using a database and GPS position data to generate bearing data 0 2008
 
LUCENT TECHNOLOGIES INC. (1)
* 6,438,380 System for robust location of a mobile-transmitter 134 1997
 
TELECOMMUNICATION SYSTEMS, INC. (21)
8,019,339 Using serving area identification in a mixed access network environment 2 2007
8,000,701 Correlation mechanism to communicate in a dual-plane architecture 4 2007
8,000,702 Optimizing location services performance by combining user plane and control plane architectures 4 2007
8,213,955 Network measurement report caching for location of mobile devices 1 2008
8,125,377 System and method for determining the location of a mobile device 3 2008
* 2010/0123,622 SYSTEM AND METHOD FOR DETERMINING THE LOCATION OF A MOBILE DEVICE 1 2008
8,035,557 System and method for server side detection of falsified satellite measurements 1 2008
7,940,213 System and method for determining falsified satellite measurements 11 2008
7,800,533 System and method for determining falsified geographic location of a mobile device 11 2008
7,956,803 System and method for protecting against spoofed A-GNSS measurement data 2 2008
7,916,071 System and method for determining a reference location of a mobile device 6 2009
* 2010/0156,713 SYSTEM AND METHOD FOR DETERMINING A REFERENCE LOCATION OF A MOBILE DEVICE 19 2009
7,986,266 Method and system for selecting optimal satellites in view 1 2009
8,467,805 System and method for determining a reference location using cell table data mining 2 2009
8,217,832 Enhancing location accuracy using multiple satellite measurements based on environment 0 2009
8,290,510 System and method for SUPL held interworking 0 2010
8,301,160 System and method for SUPL roaming using a held client 2 2010
* 2010/0311,439 SYSTEM AND METHOD FOR SUPL ROAMING USING A HELD CLIENT 10 2010
8,638,259 Method and system for providing assistance data for A-GPS location of handsets in wireless networks 1 2010
* 2010/0328,148 Method and System for Providing Assistance Data for A-GPS Location of Handsets in Wireless Networks 0 2010
8,718,673 System and method for location assurance of a mobile device 1 2011
 
SIEMENS AKTIENGESELLSCHAFT (1)
* 7,421,274 Mobile electronic appliance with a radio interface 1 2000
 
BLACKBERRY LIMITED (6)
* 7,519,329 Determination of antenna noise temperature for handheld wireless devices 5 2005
* 2007/0004,338 Determination of antenna noise temperature for handheld wireless devices 1 2005
7,894,775 Determination of antenna noise temperature for handheld wireless devices 0 2009
* 2009/0186,589 DETERMINATION OF ANTENNA NOISE TEMPERATURE FOR HANDHELD WIRELESS DEVICES 1 2009
8,116,689 Determination of antenna noise temperature for handheld wireless devices 0 2011
* 2011/0105,047 DETERMINATION OF ANTENNA NOISE TEMPERATURE FOR HANDHELD WIRELESS DEVICES 0 2011
 
CUFER ASSET LTD. L.L.C. (5)
8,493,442 Object location information 4 2001
* 7,920,626 Video surveillance visual recognition 18 2001
* 2001/0029,613 Integrated network for monitoring remote objects 27 2001
7,830,962 Monitoring remote patients 12 2006
8,335,254 Advertisements over a network 0 2006
 
AT&T INTELLECTUAL PROPERTY II, L.P. (1)
* 7,873,374 Modification of portable communications device operation in vehicles 14 2008
 
DENNIS S. FERNANDEZ (1)
7,839,432 Detector selection for monitoring objects 12 2001
 
TELECOM ITALIA S.P.A. (1)
7,333,816 System and method for identifying the position of mobile terminals 12 2001
 
INTEL CORPORATION (1)
7,110,774 Dual mode uplink/downlink location measurement and multi-protocol location measurement 34 2000
 
COMMSCOPE, INC. OF NORTH CAROLINA (7)
8,311,018 System and method for optimizing location estimate of mobile unit 6 2008
8,090,384 System and method for generating a location estimate using a method of intersections 3 2008
8,175,620 System and method for generating non-uniform grid points from calibration data 1 2008
8,938,252 System and method to collect and modify calibration data 0 2008
8,326,317 System and method to obtain calibration data using estimation techniques 0 2008
8,254,966 System and method to modify wireless network calibration data 1 2008
8,112,096 System and method for locating an unknown base station 9 2008
 
HARRIS CORPORATION (5)
* 6,324,392 Emergency locator and communicator 15 1998
6,608,593 System and method for determining the location of a transmitter using passive reflectors or refractors as proxy receivers 26 2001
6,580,393 System and method for determining the location of a transmitter using passive reflectors or refractors as proxy receivers and using database querying 24 2001
6,522,296 Method and system for calibrating wireless location systems 53 2001
6,795,019 Method and system for calibrating wireless location systems 19 2002
 
Sigmaone Communications Corporation (1)
6,246,884 System and method for measuring and locating a mobile station signal in a wireless communication system 84 1998
 
NOKIA CORPORATION (2)
7,107,065 Position acquisition 15 2001
7,272,404 Position acquisition 43 2006
 
X ONE, INC. (10)
8,538,458 Location sharing and tracking using mobile phones or other wireless devices 64 2008
8,831,635 Methods and apparatuses for transmission of an alert to multiple devices 4 2011
8,750,898 Methods and systems for annotating target locations 1 2013
8,798,645 Methods and systems for sharing position data and tracing paths between mobile-device users 3 2013
8,798,593 Location sharing and tracking using mobile phones or other wireless devices 2 2013
8,798,647 Tracking proximity of services provider to services consumer 3 2013
9,167,558 Methods and systems for sharing position data between subscribers involving multiple wireless providers 0 2014
9,185,522 Apparatus and method to transmit content to a cellular wireless device based on proximity to other wireless devices 0 2014
9,031,581 Apparatus and method for obtaining content on a cellular wireless device based on proximity to other wireless devices 1 2014
9,253,616 Apparatus and method for obtaining content on a cellular wireless device based on proximity 1 2015
 
FINETRAK, LLC (1)
8,994,591 Locating a mobile station and applications therefor 8 2010
 
TDC ACQUISITION HOLDINGS, INC. (1)
6,906,625 System and method for information assimilation and functionality control based on positioning information obtained by impulse radio techniques 66 2000
 
FERNANDEZ, DENNIS (3)
7,769,620 Adaptive direct transaction for networked client group 7 1998
8,838,463 Adaptive direct transaction for network client group 0 2008
8,484,045 Adaptive direct transaction for network client group 1 2009
 
NOKIA TECHNOLOGIES OY (2)
* 6,813,501 Location dependent services 375 2001
* 2001/0018,349 Location dependent services 52 2001
 
SIMON FRASER UNIVERSITY (1)
8,849,926 System and method for self-calibrating, self-organizing and localizing sensors in wireless sensor networks 0 2010
 
HERE GLOBAL B.V. (1)
* 6,385,533 Method and system using dynamic profiling in a mobile environment for collecting data for a geographic database 15 2001
 
TRACBEAM, LLC (4)
9,237,543 Wireless location using signal fingerprinting and other location estimators 0 2007
9,060,341 System and method for hybriding wireless location techniques 0 2010
9,134,398 Wireless location using network centric location estimators 1 2011
9,277,525 Wireless location using location estimators 0 2013
 
TRUEPOSITION, INC. (25)
* 6,127,975 Single station communications localization system 133 1998
* 6,546,256 Robust, efficient, location-related measurement 86 1999
* 6,288,675 Single station communications localization system 97 2000
* 6,288,676 Apparatus and method for single station communications localization 118 2000
6,996,392 E911 overlay solution for GSM, for use in a wireless location system 83 2002
* 2004/0203,429 E911 overlay solution for GSM, for use in a wireless location system 10 2002
7,340,259 Robust, efficient, localization system 82 2003
* 2003/0129,996 Robust, efficient, localization system 4 2003
7,440,762 TDOA/GPS hybrid wireless location system 72 2003
* 2005/0148,346 TDOA/GPS hybrid wireless location system 23 2003
7,689,240 Transmit-power control for wireless mobile services 20 2005
* 2007/0111,746 Transmit-power control for wireless mobile services 88 2005
7,593,738 GPS synchronization for wireless communications stations 72 2005
* 2007/0155,489 Device and network enabled geo-fencing for area sensitive gaming enablement 95 2005
8,150,421 User plane uplink time difference of arrival (U-TDOA) 13 2006
* 2007/0155,401 USER PLANE UPLINK TIME DIFFERENCE OF ARRIVAL (U-TDOA) 101 2006
* 2009/0005,061 LOCATION QUALITY OF SERVICE INDICATOR 138 2006
* 2008/0161,015 Robust, Efficient, Localization System 55 2008
7,925,274 TDOA/GPS hybrid wireless location system 9 2008
* 2008/0248,811 TDOA/GPS Hybrid Wireless Location System 64 2008
8,224,348 Location intelligence management system 5 2009
* 2011/0151,839 Location Intelligence Management System 23 2009
8,849,254 Location intelligence management system 3 2012
8,737,452 Identification and isolation of radio signals for a wireless location system 0 2012
9,386,421 Location intelligence management system for border security 0 2013
 
PLUS LOCATION SYSTEMS PTY LIMITED (1)
7,170,408 System and method for information assimilation and functionality control based on positioning information obtained by impulse radio means 60 2005
 
JPMORGAN CHASE BANK, N.A. (1)
* 2010/0120,413 METHOD AND SYSTEM FOR APPLYING WIRELESS GEOLOCATION TECHNOLOGY 3 2010
 
GOOGLE INC. (1)
8,370,054 User location driven identification of service vehicles 3 2005
 
COMMLABS, INC. (1)
* 2010/0073,229 Wide Area Positioning System 44 2009
 
VERIZON PATENT AND LICENSING INC. (1)
6,574,484 Method for emergency service access using a mobile phone 122 1999
 
American Vehicular Sciences (1)
* 2013/0325,323 VEHICLE SOFTWARE UPGRADE TECHNIQUES 8 2013
 
Skyhook Wireless, Inc. (2)
8,462,745 Methods and systems for determining location using a cellular and WLAN positioning system by selecting the best WLAN PS solution 8 2009
8,638,725 Methods and systems for determining location using a cellular and WLAN positioning system by selecting the best WLAN PS solution 2 2013
 
NTT DOCOMO, INC. (1)
* 6,922,634 Measuring device, method for correcting measured outcomes, program and recording media 4 2002
 
UNIVERSITY OF SOUTH CAROLINA (1)
* 2009/0247,186 Dynamic Localization Using Geographical Information Systems 6 2009
 
CSR TECHNOLOGY INC. (2)
* 8,364,164 Cell ID based positioning from cell intersections 3 2006
* 2008/0039,114 CELL ID BASED POSITIONING FROM CELL INTERSECTIONS 81 2006
 
STEVEN M. HOFFBERG 2004-1 GRAT (2)
8,369,967 Alarm system controller and a method for controlling an alarm system 13 2011
8,892,495 Adaptive pattern recognition based controller apparatus and method and human-interface therefore 0 2013
* Cited By Examiner