US Patent No: 4,445,118

Number of patents in Portfolio can not be more than 2000

Navigation system and method

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Abstract

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In a global positioning system (GPS), such as the NAVSTAR/GPS system, wherein the position coordinates of user terminals (14) are obtained by processing multiple signals transmitted by a constellation of orbiting satellites (16), an acquisition-aiding signal generated by an earth-based control station (12) is relayed to user terminals via a geostationary satellite (10) to simplify user equipment. The aiding signal is FSK modulated on a reference channel slightly offset from the standard GPS channel. The aiding signal identifies satellites in view having best geometry and includes Doppler prediction data as well as GPS satellite coordinates and identification data associated with user terminals within an area being served by the control station (12) and relay satellite (10). The aiding signal significantly reduces user equipment by simplifying spread spectrum signal demodulation and reducing data processing functions previously carried out at the user terminals (14).

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Patent Owner(s)

Patent OwnerAddressTotal Patents
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATIONWASHINGTON, DC1311

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sennott, James W Bloomington, IL 8 1669
Taylor, Ralph E Silver Spring, MD 1 627

Cited Art Landscape

Patent Info (Count) # Cites Year
 
BHL PATENT HOLDINGS LLC (1)
* 2002/0143,320 Tracking medical products with integrated circuits 26 2002
* Cited By Examiner

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VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY (1)
6,608,669 Quadrature processed LIDAR system 31 2001
 
The United States of America as represented by the Secretary of the Air Force (2)
* 4,622,557 Transdigitizer for relaying signals from global positioning system (GPS) satellites 50 1984
* 5,119,341 Method for extending GPS to underwater applications 47 1991
 
IPOSI, INC. (5)
7,961,717 System and methods for IP and VoIP device location determination 22 2006
* 2007/0030,841 System and methods for IP and VoIP device location determination 82 2006
8,867,531 Systems and methods for IP and VoIP device location determination 0 2011
* 2011/0206,039 Systems And Methods For IP And VoIP Device Location Determination 4 2011
9,319,519 Systems and methods for IP and VoIP device location determination 0 2014
 
CDC PROPRIETE INTELLECTUELLE (4)
* 5,515,062 Location system and method with acquisition of accurate location parameters 105 1993
* 5,500,648 Geolocation responsive radio telecommunication system and method therefor 47 1993
* 5,999,125 Method and apparatus for a global positioning data service 69 1996
* 5,889,492 Method and apparatus for an acquisition-aided Geo-locating subscriber unit 34 1996
 
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) (1)
* 7,215,967 System and method for fast cold start of a GPS receiver in a telecommunications environment 63 1998
 
COLES, CHRISTOPHER F., MR. (3)
* 5,712,679 Security system with method for locatable portable electronic camera image transmission to a remote receiver 116 1992
6,181,373 Security system with method for locatable portable electronic camera image transmission to a remote receiver 63 1998
6,469,735 Security system with locatable portable electronic camera image transmission 4 2001
 
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
 
Global Locate (1)
* 7,656,350 Method and apparatus for processing a satellite positioning system signal using a cellular acquisition signal 2 2004
 
TORSAL TECHNOLOGY GROUP LTD. LLC (1)
* 5,444,450 Radio telecommunications system and method with adaptive location determination convergence 98 1993
 
SIRF TECHNOLOGY HOLDINGS, INC. (3)
7,616,705 Monolithic GPS RF front end integrated circuit 1 2001
7,577,448 Multi-mode global positioning system for use with wireless networks 52 2002
7,719,466 Communications systems that reduces auto-correlation or cross-correlation in weak signals 0 2007
 
The Boeing Company (1)
8,259,012 Software GNSS receiver for high-altitude spacecraft applications 0 2010
 
Societe Canadienne des Brevets et d'Exploitation Limitee (1)
* 4,933,916 Phase measurements using pseudo-random code 17 1985
 
Offshore Navigation, Inc. (1)
* 4,665,404 High frequency spread spectrum positioning system and method therefor 87 1984
 
MAISHI ELECTRONIC (SHANGHAI) LTD (2)
* 7,710,317 Method for GPS positioning in a weak signal environment 13 2006
* 2007/0183,486 Method for GPS positioning in a weak signal environment 15 2006
 
International Series Research, Inc. (1)
* 4,797,677 Method and apparatus for deriving pseudo range from earth-orbiting satellites 109 1986
 
CSR TECHNOLOGY INC. (84)
6,531,982 Field unit for use in a GPS system 198 1997
6,606,349 Spread spectrum receiver performance improvement 14 1999
6,448,925 Jamming detection and blanking for GPS receivers 28 1999
6,577,271 Signal detector employing coherent integration 23 1999
6,304,216 Signal detector employing correlation analysis of non-uniform and disjoint sample segments 67 1999
6,278,403 Autonomous hardwired tracking loop coprocessor for GPS and WAAS receiver 15 1999
7,545,854 Doppler corrected spread spectrum matched filter 1 2000
6,952,440 Signal detector employing a Doppler phase correction system 38 2000
6,931,055 Signal detector employing a doppler phase correction system 15 2000
6,788,655 Personal communications device with ratio counter 14 2000
6,714,158 Method and system for data detection in a global positioning system satellite receiver 10 2000
7,885,314 Cancellation system and method for a wireless positioning system 3 2000
6,671,620 Method and apparatus for determining global position using almanac information 136 2000
7,711,038 System and method for despreading in a spread spectrum matched filter 0 2000
7,197,305 Apparatus for reducing auto-correlation or cross-correlation in weak CDMA signals 3 2001
7,106,786 Method for reducing auto-correlation or cross-correlation in weak signals 6 2001
6,680,695 Communications system that reduces auto-correlation or cross-correlation in weak signals 86 2001
6,466,161 Location services system that reduces auto-correlation or cross-correlation in weak signals 18 2001
* 2002/0064,209 Method for reducing auto-correlation or cross-correlation in weak signals 4 2001
* 2002/0025,828 Apparatus for reducing auto-correlation or cross-correlation in weak CDMA signals 3 2001
6,931,233 GPS RF front end IC with programmable frequency synthesizer for use in wireless phones 37 2001
6,496,145 Signal detector employing coherent integration 7 2001
6,519,277 Accelerated selection of a base station in a wireless communication system 19 2001
7,047,023 GPS RF front end IC with frequency plan for improved integrability 11 2001
7,747,236 Method and apparatus for estimating local oscillator frequency for GPS receivers 2 2001
6,778,136 Fast acquisition of GPS signal 127 2001
7,113,552 Phase sampling techniques using amplitude bits for digital receivers 1 2001
7,671,489 Method and apparatus for selectively maintaining circuit power when higher voltages are present 3 2002
6,680,703 Method and apparatus for optimally tuning a circularly polarized patch antenna after installation 7 2002
6,703,971 Mode determination for mobile GPS terminals 114 2002
7,076,256 Method and apparatus for transmitting position data using control channels in wireless networks 26 2002
7,877,104 Method for synchronizing a radio network using end user radio terminals 8 2002
* 2002/0173,322 Method for synchronizing a radio network using end user radio terminals 12 2002
6,707,423 Location services system that reduces auto-correlation or cross-correlation in weak signals 26 2002
7,545,319 Configurable satellite positioning system receivers with programmable inputs 2 2003
7,002,516 Signal detector employing correlation analysis of non-uniform and disjoint sample segments 7 2003
* 2005/0035,905 Signal detector employing correlation analysis of non-uniform and disjoint sample segments 0 2003
7,183,972 Communications system that reduces auto-correlation or cross-correlation in weak signals 3 2003
* 2004/0137,914 Communications system that reduces auto-correlation or cross-correlation in weak signals 1 2003
* 7,406,114 Pseudo-noise correlator for GPS spread-spectrum receiver 0 2003
* 2004/0136,446 Pseudo-noise correlator for GPS spread-spectrum receiver 1 2003
7,151,485 Generic satellite positioning system receivers with selectable inputs and outputs 4 2004
7,852,905 System and method for despreading in a spread spectrum matched filter 0 2004
8,138,972 Signal processing system for satellite positioning signals 9 2004
* 2011/0102,258 Signal Processing System for Satellite Positioning Signals 34 2004
7,369,830 Monolithic GPS RF front end integrated circuit 1 2004
* 2005/0096,004 Monolithic GPS RF front end integrated circuit 5 2004
8,244,271 Distributed data collection of satellite data 1 2004
* 2005/0130,590 Distributed data collection of satellite data 10 2004
7,929,928 Frequency phase correction system 3 2004
* 2005/0162,306 Frequency phase correction system 17 2004
7,949,362 Satellite positioning aided communication system selection 1 2004
* 2005/0153,730 Satellite positioning aided communication system selection 7 2004
8,078,189 System and method for providing location based services over a network 18 2005
7,512,385 GPS RF front end IC with programmable frequency synthesizer for use in wireless phones 1 2005
* 2006/0040,631 GPS RF front end IC with programmable frequency synthesizer for use in wireless phones 2 2005
7,269,511 Method and system for data detection in a global positioning system satellite receiver 1 2005
* 2005/0264,446 Method and system for data detection in a global positioning system satellite receiver 1 2005
7,925,210 Synchronizing a radio network with end user radio terminals 1 2005
* 2006/0013,347 Synchronizing a radio network with end user radio terminals 5 2005
7,680,178 Cross-correlation detection and elimination in a receiver 4 2005
7,668,554 Network system for aided GPS broadcast positioning 1 2005
* 2006/0223,549 Network system for aided GPS broadcast positioning 16 2005
7,365,680 Location services system that reduces auto-correlation or cross-correlation in weak signals 3 2006
7,933,627 GPS RF front end IC with frequency plan for improved integrability 1 2006
7,986,952 Method and apparatus for transmitting position data using control channels in wireless networks 3 2006
* 2007/0008,218 Tracker architecture for GPS systems 1 2006
7,724,807 Method for reducing auto-correlation or cross-correlation in weak signals 1 2006
7,508,340 Generic Satellite Positioning System receivers with selectable inputs and outputs 1 2006
8,164,517 Global positioning system receiver timeline management 0 2006
7,999,733 Fast reacquisition of a GPS signal 0 2007
* 2008/0198,069 Fast Reacquisition of a GPS Signal 8 2007
* 2008/0001,817 Communications Systems That Reduces Auto-Correlation or Cross-Correlation In Weak Signals 1 2007
8,116,976 Satellite based positioning method and system for coarse location positioning 1 2007
7,969,351 Mode determination for mobile GPS terminals 0 2007
* 2008/0180,316 Mode Determination for Mobile GPS Terminals 1 2007
8,144,053 System and method for verifying consistent measurements in performing GPS positioning 0 2008
* 2009/0195,446 System and Method for Verifying Consistent Measurements in Performing GPS Positioning 9 2008
8,260,548 Satellite based positioning method and system for coarse location positioning 0 2010
8,437,693 Synchronizing a radio network with end user radio terminals 3 2011
* 2011/0183,606 SYNCHRONIZING A RADIO NETWORK WITH END USER RADIO TERMINALS 4 2011
8,947,300 Control and features for satellite positioning system receivers 0 2011
8,593,345 Signal processing system for satellite positioning signals 0 2012
8,810,450 Global positioning system receiver timeline management 0 2012
 
STEVEN M. HOFFBERG 2004-1 GRAT (3)
8,369,967 Alarm system controller and a method for controlling an alarm system 13 2011
8,364,136 Mobile system, a method of operating mobile system and a non-transitory computer readable medium for a programmable control of a mobile system 24 2011
8,892,495 Adaptive pattern recognition based controller apparatus and method and human-interface therefore 0 2013
 
OPTIS WIRELESS TECHNOLOGY, LLC (1)
6,636,740 Apparatus and methods for position computation based on broadcast initialization data 26 1998
 
Herzog Contracting Corp. (3)
6,526,339 GPS controlled multiple source material application 15 2000
7,437,997 Method for delivering replacement rail ties using GPS techniques 7 2008
* 2008/0163,782 METHOD FOR DELIVERING REPLACEMENT RAIL TIES USING GPS TECHNIQUES 0 2008
 
PANASONIC CORPORATION (2)
8,164,516 GPS-based positioning system for mobile GPS terminals 0 2008
* 2009/0033,553 GPS-BASED POSITIONING SYSTEM FOR MOBILE GPS TERMINALS 5 2008
 
SNAP TRENDS, INC. (1)
8,843,515 Methods and systems of aggregating information of social networks based on geographical locations via a network 10 2013
 
TELIT AUTOMOTIVE SOLUTIONS NV (1)
* 8,560,233 Method of determining a GPS position fix and a GPS receiver for the same 0 2004
 
SKYWORKS SOLUTIONS, INC. (2)
6,327,471 Method and an apparatus for positioning system assisted cellular radiotelephone handoff and dropoff 120 1998
6,348,744 Integrated power management module 29 1998
 
AT&T INTELLECTUAL PROPERTY I, L.P. (22)
7,603,110 Identity blocking service from a wireless service provider 22 2005
7,593,712 System and method for using location information to execute an action 51 2005
7,418,503 Anonymous location service for wireless networks 25 2006
7,941,130 System and method for using location information to execute an action 25 2006
7,636,575 Third party location query for wireless networks 16 2006
* 2007/0105,565 Third party location query for wireless networks 65 2006
8,010,126 Surveying wireless device users by location 13 2006
8,644,506 Location-based security rules 21 2007
8,260,239 System and method for using location information to execute an action 6 2008
7,844,284 Third party location query for wireless networks 14 2009
* 2010/0035,636 Third Party Location Query for Wireless Networks 14 2009
7,941,267 Methods, systems and computer program products for ride matching based on selection criteria and driver characteristic information 4 2009
7,873,369 Location blocking service for wireless networks 16 2009
8,483,724 Third party location query for wireless networks 0 2011
9,020,489 System and method for using location information to execute an action 0 2012
8,825,035 System and method for remote control of appliances utilizing mobile location-based applications 0 2012
8,645,505 Anonymous location service for wireless networks 0 2013
9,078,094 Third party location query for wireless networks 0 2013
8,755,777 Identity blocking service from a wireless service provider 0 2013
8,718,618 Identity blocking service from a wireless service provider 0 2013
8,874,140 Location blocking service from a wireless service provider 0 2013
8,805,414 Surveying wireless device users by location 0 2013
 
Works Bell Inc. (1)
9,341,716 Method, apparatus and system for GPS time synchronization using cellular signal bursts 0 2006
 
GOOGLE TECHNOLOGY HOLDINGS LLC (7)
6,211,819 Mobile station location determination in a radio communication system 91 1999
6,429,811 Method and apparatus for compressing GPS satellite broadcast message information 62 2000
7,720,601 Method and apparatus for compressing GPS satellite broadcast message information 1 2002
* 6,915,210 Method of updating GPS almanac data for satellites not in view 5 2003
* 2005/0015,200 Method of updating GPS almanac data for satellites not in view 2 2003
7,463,979 Method and apparatus for initializing an approximate position in a GPS receiver 7 2003
* 2005/0055,160 Method and apparatus for initializing an approximate position in a GPS receiver 20 2003
 
SECUREALERT, INC. (9)
8,797,210 Remote tracking device and a system and method for two-way voice communication between the device and a monitoring center 0 2006
7,936,262 Remote tracking system with a dedicated monitoring center 13 2006
7,737,841 Alarm and alarm management system for remote tracking devices 18 2006
7,804,412 Remote tracking and communication device 11 2008
8,232,876 System and method for monitoring individuals using a beacon and intelligent remote tracking device 4 2009
8,013,736 Alarm and alarm management system for remote tracking devices 11 2010
8,514,070 Tracking device incorporating enhanced security mounting strap 1 2010
8,031,077 Remote tracking and communication device 4 2010
9,129,504 Tracking device incorporating cuff with cut resistant materials 0 2014
 
APPLE INC. (1)
* 6,542,113 Global positioning system 5 2001
 
FUTURE CAPITAL L.L.C. (3)
* 5,454,027 Phantom mobile identification number method and apparatus 74 1993
* 5,579,376 Phantom mobile-identification number method and apparatus 111 1995
6,748,226 System and method for locating a mobile unit within the service area of a mobile communications network 98 1998
 
GULA CONSULTING LIMITED LIABILITY COMPANY (2)
* 8,805,416 Method and system for mobile device selectively reporting of GPS position information to others 0 2008
* 2008/0132,250 Position Privacy in an Electronic Device 2 2008
 
PCTEL, INC. (2)
* 7,639,985 Use of SCH bursts for co-channel interference measurements 4 2006
* 2007/0207,740 Use of SCH bursts for co-channel interference measurements 1 2006
 
KABUSHIKI KAISHA TOSHIBA (2)
* 5,760,738 GPS overlay system for a geostationary satellite 8 1996
* 7,065,348 Communication system for providing information on position of communication party 31 2000
 
RAYTHEON COMPANY (1)
* 5,420,883 Train location and control using spread spectrum radio communications 111 1993
 
TELECOMMUNICATION SYSTEM, INC. (1)
7,154,438 Prioritized list of potential culled satellite ephemeris information for quick, accurate assisted locating satellite location determination 0 2005
 
TELECOMMUNICATION SYSTEMS, INC. (122)
* 6,650,288 Culled satellite ephemeris information for quick assisted GPS location determination 121 2002
8,126,889 Location fidelity adjustment based on mobile subscriber privacy profile 29 2002
* 2003/0187,803 Location fidelity adjustment based on mobile subscriber privacy profile 41 2002
7,426,380 Location derived presence information 61 2003
8,489,874 Encryption STE communications through private branch exchange (PBX) 0 2004
8,280,466 Four frequency band single GSM antenna 0 2004
8,239,669 Reach-back communications terminal with selectable networking options 1 2004
* 2005/0208,986 Four frequency band single GSM antenna 2 2004
* 2005/0210,234 Reach-back communications terminal with selectable networking options 8 2004
* 2005/0210,235 Encryption STE communications through private branch exchange (PBX) 7 2004
7,183,973 Culled satellite ephemeris information based on accurate distance in range calculations, for quick, accurate assisted locating satellite location determination 0 2005
* 2006/0082,499 CULLED SATELLITE EPHEMERIS INFORMATION FOR QUICK, ACCURATE ASSISTED LOCATING SATELLITE LOCATION DETERMINATION FOR CELL SITE ANTENNAS 1 2005
* 2006/0082,500 Prioritized list of potential culled satellite ephemeris information for quick, accurate assisted locating satellite location determination 0 2005
* 7,019,690 Culled satellite ephemeris information for quick, accurate assisted locating satellite location determination for cell site antennas 10 2005
* 6,985,105 Culled satellite ephemeris information based on limiting a span of an inverted cone for locating satellite in-range determinations 27 2005
7,761,095 Secure transmission over satellite phone network 2 2005
7,724,902 Faceplate for quick removal and securing of encryption device 4 2005
* 2006/0270,451 Secure transmission over satellite phone network 6 2005
8,660,573 Location service requests throttling 2 2005
7,091,905 Culled satellite ephemeris information based on limiting a span of an inverted cone for locating satellite in-range determinations 0 2005
7,825,780 Cellular augmented vehicle alarm notification together with location services for position of an alarming vehicle 12 2005
* 2007/0075,849 Cellular augmented vehicle alarm notification together with location services for position of an alarming vehicle 8 2005
* 2007/0075,848 Cellular augmented vehicle alarm 5 2005
9,282,451 Automatic location identification (ALI) service requests steering, connection sharing and protocol translation 0 2005
* 7,113,128 Culled satellite ephemeris information for quick, accurate assisted locating satellite location determination for cell site antennas 17 2006
8,150,363 Enhanced E911 network access for call centers 9 2006
* 2006/0202,888 Culled satellite ephemeris information for quick, accurate assisted locating satellite location determination for cell site antennas 1 2006
9,154,906 Area watcher for wireless network 0 2006
* 2009/0015,461 CELLULAR AUGMENTED RADAR/LASER DETECTOR 9 2006
7,471,236 Cellular augmented radar/laser detector 27 2006
7,899,450 Cellular augmented radar/laser detection using local mobile network within cellular network 8 2006
* 2007/0207,797 Cellular augmented radar/laser detection using local mobile network within cellular network 9 2006
* 2007/0121,798 Public service answering point (PSAP) proxy 5 2006
7,782,254 Culled satellite ephemeris information based on limiting a span of an inverted cone for locating satellite in-range determinations 9 2006
* 2008/0036,655 Culled satellite ephemeris information based on limiting a span of an inverted cone for locating satellite in-range determinations 7 2006
7,907,551 Voice over internet protocol (VoIP) location based 911 conferencing 12 2006
7,626,951 Voice Over Internet Protocol (VoIP) location based conferencing 82 2006
7,933,385 Emergency alert for voice over internet protocol (VoIP) 9 2006
8,290,505 Consequential location derived information 0 2006
8,467,320 Voice over internet protocol (VoIP) multi-user conferencing 2 2006
* 2007/0091,831 Voice over internet protocol (VoIP) multi-user conferencing 7 2006
8,059,789 Automatic location identification (ALI) emergency services pseudo key (ESPK) 3 2006
8,532,266 Efficient usage of emergency services keys 0 2007
* 2007/0274,463 Efficient usage of emergency services keys 0 2007
7,411,546 Other cell sites used as reference point to cull satellite ephemeris information for quick, accurate assisted locating satellite location determination 4 2007
* 7,629,926 Culled satellite ephemeris information for quick, accurate assisted locating satellite location determination for cell site antennas 11 2007
* 2009/0051,590 Culled satellite ephemeris information for quick, accurate assisted locating satellite location determination for cell site antennas 0 2007
7,489,273 Culled satellite ephemeris information for quick, accurate assisted locating satellite location determination for cell site antennas 4 2007
7,966,013 Roaming gateway enabling location based services (LBS) roaming for user plane in CDMA networks without requiring use of a mobile positioning center (MPC) 6 2007
8,032,112 Location derived presence information 4 2008
* 2008/0119,204 Location derived presence information 3 2008
* 2008/0249,796 Voice over internet protocol (VoIP) location based commercial prospect conferencing 5 2008
8,576,991 End-to-end logic tracing of complex call flows in a distributed call system 0 2008
9,413,889 House number normalization for master street address guide (MSAG) address matching 0 2008
* 2009/0077,077 Optimal selection of MSAG address for valid civic/postal address 3 2008
7,764,219 Cellular augmented radar/laser detector 20 2008
* 2009/0079,614 Cellular augmented radar/laser detector 8 2008
* 2010/0080,216 Real-time communication blocking for Dot Not Call" registered information 0 2008
7,929,530 Ancillary data support in session initiation protocol (SIP) messaging 6 2008
* 2009/0149,193 Creating optimum temporal location trigger for multiple requests 0 2008
8,068,587 Nationwide table routing of voice over internet protocol (VOIP) emergency calls 4 2009
* 2010/0046,721 Nationwide table routing of voice over internet protocol (VoIP) emergency calls 3 2009
8,892,128 Location based geo-reminders 0 2009
8,525,681 Location based proximity alert 4 2009
8,150,364 Enhanced E911 network access for a call center using session initiation protocol (SIP) messaging 0 2009
* 2010/0090,827 Location based proximity alert 12 2009
* 2010/0093,371 Location based geo-reminders 10 2009
8,089,401 Culled satellite ephemeris information for quick, accurate assisted locating satellite location determination for cell site antennas 3 2009
* 2010/0045,520 Culled satellite ephemeris information for quick, accurate assisted locating satellite location determination for cell site antennas 0 2009
7,890,051 Secure transmission over satellite phone network 0 2010
7,965,222 Cellular augmented radar/laser detector 11 2010
* 2010/0238,065 Cellular augmented radar/laser detector 11 2010
* 2010/0323,674 Mobile based area event handling when currently visited network does not cover area 1 2010
* 2011/0013,541 Voice over internet protocol (VoIP) location based 911 conferencing 6 2010
9,390,615 Emergency alert for voice over internet protocol (VoIP) 0 2010
* 2011/0019,664 Emergency alert for voice over internet protocol (VoIP) 4 2010
8,336,664 Telematics basic mobile device safety interlock 29 2010
8,515,414 Cellular augmented radar/laser detection using local mobile network within cellular network 5 2011
* 2011/0149,933 Cellular augmented radar/laser detection using local mobile network within cellular network 4 2011
8,913,989 Secure transmission over satellite phone network 0 2011
9,130,963 Ancillary data support in session initiation protocol (SIP) messaging 0 2011
8,688,087 N-dimensional affinity confluencer 3 2011
8,190,151 Roaming gateway enabling location based services (LBS) roaming for user plane in CDMA networks without requiring use of a mobile positioning center (MPC) 3 2011
8,315,599 Location privacy selector 7 2011
8,532,277 Location derived presence information 0 2011
8,942,743 iALERT enhanced alert manager 1 2011
* 8,681,044 Culled satellite ephemeris information for quick, accurate assisted locating satellite location determination for cell site antennas 0 2011
8,682,321 Mobile internet protocol (IP) location 1 2012
8,688,174 Integrated, detachable ear bud device for a wireless phone 3 2012
8,406,728 Enhanced E911 network access for call centers 3 2012
8,369,825 Enhanced E911 network access for a call center using session initiation protocol (SIP) messaging 3 2012
8,885,796 Extended efficient usage of emergency services keys 0 2012
8,831,556 Unique global identifier header for minimizing prank emergency 911 calls 0 2012
9,220,958 Consequential location derived information 0 2012
9,204,294 Location privacy selector 0 2012
9,313,637 Wireless emergency caller profile data delivery over a legacy interface 0 2012
8,984,591 Authentication via motion of wireless device movement 0 2012
8,798,572 Solutions for voice over internet protocol (VoIP) 911 location services 0 2013
9,420,444 Enhanced E911 network access for call centers 0 2013
9,338,153 Secure distribution of non-privileged authentication credentials 0 2013
9,002,347 Transmitter augmented radar/laser detection using local mobile network within a wide area network 0 2013
9,313,638 Device independent caller data access for emergency calls 0 2013
9,208,346 Persona-notitia intellection codifier 0 2013
8,983,048 Location derived presence information 0 2013
9,301,191 Quality of service to over the top applications used with VPN 0 2013
9,042,522 End-to-end logic tracing of complex call flows in a distributed call system 0 2013
9,167,553 GeoNexus proximity detector network 0 2013
9,198,054 Aggregate location dynometer (ALD) 0 2014
9,125,039 Enhanced E911 network access for a call center using session initiation protocol (SIP) messaging 0 2014
9,288,615 Location service requests throttling 0 2014
9,173,059 Mobile internet protocol (IP) location 0 2014
9,088,614 User plane location services over session initiation protocol (SIP) 0 2014
9,232,062 Mobile automatic location identification (ALI) for first responders 0 2014
8,983,047 Index of suspicion determination for communications request 1 2014
9,237,228 Solutions for voice over internet protocol (VoIP) 911 location services 0 2014
9,178,996 Unique global identifier header for minimizing prank 911 calls 0 2014
9,408,034 Extended area event for network based proximity discovery 0 2014
9,210,548 iALERT enhanced alert manager 0 2014
9,398,419 Location derived presence information 0 2015
9,326,143 Authentication via motion of wireless device movement 0 2015
9,401,986 Unique global identifier header for minimizing prank emergency 911 calls 0 2015
9,402,158 Aggregate location dynometer (ALD) 0 2015
 
Asulab S.A. (2)
* 7,321,754 Radio-frequency signal frequency conversion device for a low power RF receiver 4 2002
* 2004/0248,537 Radio-frequency signal frequency conversion device for a low power rf receiver 0 2004
 
LUCENT TECHNOLOGIES INC. (4)
* 6,114,991 Auxiliary system for assisting a wireless terminal in determining its position from signals transmitted from a navigation satellite 16 1997
6,538,600 Wireless assisted GPS using a reference location 23 1999
* 6,922,546 GPS signal acquisition based on frequency-domain and time-domain processing 15 2000
* 2007/0182,631 Internet based assisted global positioning system 31 2006
 
Remote Knowledge, Inc. (1)
* 2002/0115,436 Telematics system 52 2001
 
AT&T INTELLECTUAL PROPERTY, INC. (3)
7,428,411 Location-based security rules 29 2005
* 2005/0272,445 Location-based security rules 123 2005
7,245,925 System and method for using location information to execute an action 103 2005
 
MOTOROLA, INC. (2)
* 5,278,832 Method and apparatus for controlling the timing within a transceiver 16 1990
6,445,927 Method and apparatus for calibrating base station locations and perceived time bias offsets in an assisted GPS transceiver 64 2000
 
DENSO CORPORATION (1)
* 6,380,891 GPS receiver with satellite frame synchronization process 11 2000
 
INMARSAT TWO COMPANY (NOW KNOWN AS INMARSAT LTD.) (1)
* 6,040,798 Satellite radiodetermination 81 1996
 
HIGHWAY MASTER L.P. (1)
* 6,061,558 Method and apparatus for a nation-wide cellular telephone network 17 1998
 
OPTIMA TECHNOLOGY CORPORATION (NV) (1)
* 5,566,073 Pilot aid using a synthetic environment 100 1995
 
INTEL CORPORATION (1)
6,693,953 Adaptive wireless communication receiver 37 1998
 
HIGHWAYMASTER COMMUNINCATIONS, INC. (1)
* 5,799,249 Method and apparatus for a nation-wide cellular telephone network 34 1995
 
HIGHWAYMASTER L.P. (1)
* 5,539,810 Data messaging in a communications network 252 1993
 
VERIZON LABORATORIES INC. (3)
* 5,519,760 Cellular network-based location system 264 1994
* RE38267 Cellular network-based geographic coverage area reporting method and apparatus 24 1998
RE44378 Cellular network-based location system 1 2006
 
PANASONIC ELECTRIC WORKS CO., LTD. (2)
6,462,708 GPS-based positioning system for mobile GPS terminals 25 2001
7,009,555 GPS-based positioning system for mobile GPS terminals 15 2002
 
INMARSAT LIMITED (1)
* 2004/0145,517 Method and apparatus for a satellite payload and radiodetermination 7 2004
 
APTINA IMAGING CORPORATION (7)
7,924,316 Image feature identification and motion compensation apparatus, systems, and methods 2 2007
* 2008/0225,125 Image feature identification and motion compensation apparatus, systems, and methods 9 2007
7,920,746 Compressed domain image summation apparatus, systems, and methods 0 2007
* 7,599,566 Image feature identification and motion compensation apparatus, systems, and methods 3 2007
7,542,614 Image feature identification and motion compensation apparatus, systems, and methods 5 2007
* 2008/0226,192 IMAGE FEATURE IDENTIFICATION AND MOTION COMPENSATION APPARATUS, SYSTEMS, AND METHODS 10 2007
* 2008/0226,184 IMAGE FEATURE IDENTIFICATION AND MOTION COMPENSATION APPARATUS, SYSTEMS, AND METHODS 4 2007
 
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
 
MACROMETRICS, INC. A CRP. OF MA (1)
* 4,667,203 Method and system for determining position using signals from satellites 180 1982
 
FINETRAK, LLC (1)
8,994,591 Locating a mobile station and applications therefor 8 2010
 
VOICE SIGNALS LLC (1)
* 5,382,958 Time transfer position location method and apparatus 38 1994
 
BENHOV GMBH, LLC (1)
* 5,913,170 Locating system and method using a mobile communications network 166 1994
 
HILL, JACK O. (1)
* 4,751,512 Differential navigation system for remote mobile users 179 1986
 
AVIO INVESTMENTS S.P.A. (1)
* 5,390,125 Vehicle position determination system and method 198 1993
 
TRACBEAM, LLC (5)
9,237,543 Wireless location using signal fingerprinting and other location estimators 0 2007
* 2008/0167,049 WIRELESS LOCATION USING SIGNAL FINGERPRINTING AND OTHER LOCATION ESTIMATORS 97 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
 
MOTOROLA SOLUTIONS, INC. (1)
* 5,442,805 Location-based adaptive radio control 113 1992
 
IDPA HOLDINGS, INC. (1)
6,256,475 Telecommunications-assisted satellite positioning system 38 2000
 
TRUEPOSITION, INC. (15)
7,440,762 TDOA/GPS hybrid wireless location system 71 2003
* 2005/0148,346 TDOA/GPS hybrid wireless location system 23 2003
* 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
7,925,274 TDOA/GPS hybrid wireless location system 9 2008
* 2008/0248,811 TDOA/GPS Hybrid Wireless Location System 64 2008
8,059,028 Hybrid GNSS and TDOA wireless location system 15 2008
* 2010/0039,320 Hybrid GNSS and TDOA Wireless Location System 32 2008
8,200,239 Femto-cell location by proxy methods 12 2008
8,180,368 Femto-cell location by direct methods 10 2008
* 2010/0120,394 Femto-Cell Location by Proxy Methods 38 2008
* 2010/0120,447 Femto-Cell Location by Direct Methods 93 2008
8,199,050 Hybrid GNSS and TDOA wireless location system 0 2011
 
FUTUREWEI TECHNOLOGIES, INC. (2)
* 8,886,144 Compensation apparatus for receiver asymmetric wide passband frequency response with 25% duty cycle passive mixer 0 2012
* 2013/0115,894 Compensation Apparatus for Receiver Asymmetric Wide Passband Frequency Response with 25% Duty Cycle Passive Mixer 0 2012
 
LEAR CORPORATION (2)
7,145,507 Vehicle locating system using GPS 15 2003
* 2005/0128,140 Vehicle locating system using GPS 0 2003
 
NOVATEL INC. (1)
6,445,340 Method and apparatus for generating a time signal 0 2001
 
LITTON SYSTEMS, INC. (1)
* 4,642,647 Signal generator for radio navigation system 5 1983
 
The Charles Stark Draper Laboratory, Inc. (1)
* 4,841,544 Digital direct sequence spread spectrum receiver 70 1987
 
AGENCE SPATIALE EUROPEENNE (1)
* 8,059,700 Method of processing positioning signals, in particular for indoor applications 6 2006
 
NOKIA SOLUTIONS AND NETWORKS OY (1)
* 6,424,890 Method and apparatus for satellite orbit interpolation using piecewise hermite interpolating polynomials 19 2000
 
IDTP HOLDINGS, INC. (2)
* 6,075,987 Stand alone global positioning system (GPS) and method with high sensitivity 86 1998
6,295,023 Methods, mobile stations and systems for acquiring global positioning system timing information 83 2000
 
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (2)
* 7,456,783 GPS signal repeater and GPS receiver of stationary orbit satellite, and method for positioning stationary orbit satellite using the same 0 2006
* 2007/0159,382 GPS signal repeater and GPS receiver of stationary orbit satellite, and method for positioning stationary orbit satellite using the same 1 2006
 
GENERAL ELECTRIC COMPANY (1)
* 5,579,014 Parallel correlator for global positioning system receiver 25 1995
 
QUALCOMM INCORPORATED (15)
* 5,848,099 Method and system for testing phase imbalance in QPSK receivers 10 1996
* 6,327,534 Unambiguous position determination using two low-earth orbit satellites 31 1996
6,298,238 Fast user terminal position determination in a satellite communications system 15 1998
* 6,137,441 Accurate range and range rate determination in a satellite communications system 44 1998
* 6,134,483 Method and apparatus for efficient GPS assistance in a communication system 145 1999
6,369,754 Fine positioning of a user terminal in a satellite communication system 27 2000
* 6,856,282 Directly acquiring precision code GPS signals 136 2002
* 2003/0151,547 Directly acquiring precision code GPS signals 11 2002
6,816,111 Calibration and correction system for satellite position location systems 121 2003
7,096,132 Procedure for estimating a parameter of a local maxima or minima of a function 6 2003
7,505,757 Location based service (LBS) system, method and apparatus for triggering of mobile station LBS applications 11 2004
* 2004/0235,454 Location based service (LBS) system, method and apparatus for triggering of mobile station LBS applications 4 2004
8,473,205 Procedure for searching for position determination signals using a plurality of search modes 0 2004
8,938,253 Location based service (LBS) system, method and apparatus for triggering of mobile station LBS applications 0 2009
* 2009/0176,506 LOCATION BASED SERVICE (LBS) SYSTEM, METHOD AND APPARATUS FOR TRIGGERING OF MOBILE STATION LBS APPLICATIONS 5 2009
 
HEROG CONTRACTING CORP. (1)
* 2005/0235,864 Method for delivering replacement rail ties using GPS techniques 0 2004
 
VERIZON PATENT AND LICENSING INC. (1)
7,366,492 Method and system for mobile location detection using handoff information 48 2002
 
Ono Pharmaceutical Co., Ltd. (2)
8,013,787 Control and features for satellite positioning system receivers 0 2004
* 2009/0040,103 Control and features for satellite positioning system receivers 12 2004
 
SNAPTRACK, INC. (41)
* 6,133,871 GPS receiver having power management 191 1996
* 5,874,914 GPS receiver utilizing a communication link 429 1996
* 5,663,734 GPS receiver and method for processing GPS signals 502 1996
* 6,002,363 Combined GPS positioning system and communications system utilizing shared circuitry 267 1996
* 5,884,214 GPS receiver and method for processing GPS signals 215 1996
* 5,831,574 Method and apparatus for determining the location of an object which may have an obstructed view of the sky 204 1996
* 5,825,327 GPS receivers and garments containing GPS receivers and methods for using these GPS receivers 290 1996
* 5,841,396 GPS receiver utilizing a communication link 480 1996
* 5,812,087 Method and apparatus for satellite positioning system based time measurement 375 1997
6,208,290 GPS receiver utilizing a communication link 241 1997
* 5,781,156 GPS receiver and method for processing GPS signals 293 1997
* 5,945,944 Method and apparatus for determining time for GPS receivers 395 1997
* 6,107,960 Reducing cross-interference in a combined GPS receiver and communication system 184 1998
6,185,427 Distributed satellite position system processing and application network 402 1998
* 6,061,018 Method and system for using altitude information in a satellite positioning system 315 1998
* 6,052,081 Method and apparatus for satellite positioning system based time measurement 270 1998
* 6,133,873 Method and apparatus for adaptively processing GPS signals in a GPS receiver 154 1998
6,236,354 Reducing satellite signal interference in a global positioning system receiver 138 1998
* 6,064,336 GPS receiver utilizing a communication link 359 1998
6,259,399 GPS receivers and garments containing GPS receivers and methods for using these GPS receivers 94 1998
* 6,133,874 Method and apparatus for acquiring satellite positioning system signals 357 1998
6,272,430 GPS receiver and method for processing GPS signals 75 1998
* 6,104,340 GPS receiver and method for processing GPS signals 152 1998
* 6,016,119 Method and apparatus for determining the location of an object which may have an obstructed view of the sky 195 1998
6,677,894 Method and apparatus for providing location-based information via a computer network 520 1998
* 6,111,540 Combined GPS positioning system and communications system utilizing shared circuitry 159 1999
6,377,209 Method and apparatus for satellite positioning system (SPS) time measurement 162 2000
6,307,504 Method and system for using altitude information in a satellite positioning system 159 2000
6,239,742 Method and apparatus for satellite positioning system based time measurement 179 2000
* 6,400,314 GPS receiver utilizing a communication link 180 2000
6,661,372 Client-server based remote locator device 202 2000
6,433,731 Method and apparatus for determining time in a satellite positioning system 49 2000
6,433,734 Method and apparatus for determining time for GPS receivers 172 2000
6,421,002 GPS receiver utilizing a communication link 187 2001
6,542,821 GPS receiver and method for processing GPS signals 67 2001
6,583,757 Method and apparatus for satellite positioning system (SPS) time measurement 47 2001
6,597,311 Method and apparatus for determining time in a satellite positioning system 156 2002
6,725,159 GPS receiver and method for processing GPS signals 134 2003
6,839,021 Method and apparatus for determining time in a satellite positioning system 106 2003
6,885,337 Methods and apparatus for determining the position of a mobile terminal using localized source assistance information 5 2003
* 2005/0052,318 METHODS AND APPARATUS FOR DETERMINING THE POSITION OF A MOBILE TERMINAL USING LOCALIZED SOURCE ASSISTANCE INFORMATION 19 2003
 
NISSAN MOTOR CO., LTD. (1)
* 4,743,913 Hybrid navigation system for determining a relative position and direction of a vehicle and method therefor 76 1987
 
ERICSSON INC. (6)
* 6,070,078 Reduced global positioning system receiver code shift search space for a cellular telephone system 48 1997
* 6,035,202 Method and apparatus for locating a mobile unit 31 1997
6,204,808 Method and system for aiding GPS receivers via a cellular or PCS network 126 1999
6,188,351 Method for improving signal acquistion in a global positioning system receiver 128 1999
* 6,225,944 Manual reporting of location data in a mobile communications network 150 1999
* 6,603,978 Accurate GPS time estimate based on information from a wireless communications system 40 2000
 
Pioneer Electronic Corporation (5)
* 4,890,233 Vehicle bearing detection and data processing methods applicable to vehicle navigation system 161 1987
* 4,983,980 Satellite radio signal tracking method for GPS receivers 43 1990
* 5,059,969 GPS satellite signal tracking method for GPS receivers 14 1990
* 5,222,245 GPS receiver 31 1991
* 5,373,531 Signal acquisition and reception method for a global positioning system signal 22 1993
 
U-BLOX AG (1)
8,816,905 Satellite-based positioning system improvement 0 2012
 
AT&T DELAWARE INTELLECTUAL PROPERTY, INC. (3)
7,383,052 System and method for using location information to execute an action 64 2005
7,509,133 Location blocking service from a wireless service provider 16 2006
7,412,234 System and method for using location information to execute an action 42 2006
 
CSR LIMITED (4)
* 6,480,150 Autonomous hardwired tracking loop coprocessor for GPS and WAAS receiver 12 2001
6,930,634 Shared memory architecture in GPS signal processing 110 2002
* 2006/0095,206 Aiding in a satellite positioning system 3 2003
7,236,883 Aiding in a satellite positioning system 99 2003
 
ALCATEL N.V. (1)
* 4,613,864 Position-fixing system 56 1984
 
MOBYTEL, INC. (1)
* 5,587,715 Method and apparatus for tracking a moving object 259 1993
 
IRON OAKS TECHNOLOGIES, LLC (15)
* 5,299,132 Vehicle locating and communicating method and apparatus using cellular telephone network 397 1992
* 5,398,190 Vehicle locating and communicating method and apparatus 295 1994
* 5,513,111 Vehicle locating and communicating method and apparatus 128 1994
* 5,734,981 Method and apparatus for call delivery to a mobile unit 167 1995
* 5,519,621 Vehicle locating and communicating method and apparatus 231 1995
* 5,699,275 System and method for remote patching of operating code located in a mobile unit 163 1995
* 5,544,225 Data messaging in a cellular communications network 211 1995
* 5,771,455 Data messaging in a communications network using a feature request 143 1995
* 5,652,707 Vehicle locating and communicating method and apparatus 83 1996
* 5,832,394 Vehicle locating and communicating method and apparatus 65 1997
* 6,009,330 Method and apparatus for call delivery to a mobile unit 84 1998
6,295,449 Data messaging in a communications network using a feature request 122 1998
* 5,884,221 Vehicle locating and communicating method and apparatus 35 1998
6,240,295 Data messaging in a communications network using a feature request 53 1998
* 6,148,202 Vehicle locating and communicating method and apparatus 50 1998
 
AERO SERVICE DIVISION OF WESTERN GEOPHYSICAL COMPANY, A DE CORP (1)
* 4,894,662 Method and system for determining position on a moving platform, such as a ship, using signals from GPS satellites 294 1986
 
ORBITAL SCIENCES CORPORATION (1)
* 6,667,713 Self-monitoring satellite system 12 2001
 
BRITISH AEROSPACE PUBLIC LIMITED COMPANY (1)
* 4,691,882 Co-operative satellites 41 1986
 
CATERPILLAR INC. (3)
* 5,610,815 Integrated vehicle positioning and navigation system, apparatus and method 295 1990
* 5,375,059 Vehicle position determination system and method 149 1993
* 5,555,503 System and method for providing accurate vehicle positioning using spatial bias techniques 85 1993
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (2)
* 4,800,577 GPS receiver 25 1987
* 2006/0145,917 Gps receiver 4 2002
* Cited By Examiner