WO2002016960A8 - Apparatus for reducing auto-correlation or cross-correlation in weak cdma signals - Google Patents
Apparatus for reducing auto-correlation or cross-correlation in weak cdma signalsInfo
- Publication number
- WO2002016960A8 WO2002016960A8 PCT/US2001/023078 US0123078W WO0216960A8 WO 2002016960 A8 WO2002016960 A8 WO 2002016960A8 US 0123078 W US0123078 W US 0123078W WO 0216960 A8 WO0216960 A8 WO 0216960A8
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- correlation
- systems
- cross
- signal
- verification
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/35—Constructional details or hardware or software details of the signal processing chain
- G01S19/37—Hardware or software details of the signal processing chain
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/21—Interference related issues ; Issues related to cross-correlation, spoofing or other methods of denial of service
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/30—Acquisition or tracking or demodulation of signals transmitted by the system code related
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/0009—Transmission of position information to remote stations
- G01S5/0018—Transmission from mobile station to base station
- G01S5/0027—Transmission from mobile station to base station of actual mobile position, i.e. position determined on mobile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/0009—Transmission of position information to remote stations
- G01S5/0018—Transmission from mobile station to base station
- G01S5/0036—Transmission from mobile station to base station of measured values, i.e. measurement on mobile and position calculation on base station
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/70755—Setting of lock conditions, e.g. threshold
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7085—Synchronisation aspects using a code tracking loop, e.g. a delay-locked loop
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/709—Correlator structure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
- G01S19/09—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing processing capability normally carried out by the receiver
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/26—Acquisition or tracking or demodulation of signals transmitted by the system involving a sensor measurement for aiding acquisition or tracking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/708—Parallel implementation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70715—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with application-specific features
Abstract
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002521998A JP4896353B2 (en) | 2000-08-24 | 2001-07-20 | Apparatus and method for reducing autocorrelation or cross-correlation in weak CDMA signals |
DE60144522T DE60144522D1 (en) | 2000-08-24 | 2001-07-20 | DEVICE FOR REDUCING AUTO CORRELATION AND CROSS CORRELATION IN WEAK CDMA SIGNALS |
AU2001277085A AU2001277085A1 (en) | 2000-08-24 | 2001-07-20 | Apparatus for reducing auto-correlation or cross-correlation in weak cdma signals |
AT01954865T ATE507486T1 (en) | 2000-08-24 | 2001-07-20 | DEVICE FOR REDUCING AUTOCORRELATION AND CROSS-CORRELATION IN WEAK CDMA SIGNALS |
EP01954865A EP1311870B1 (en) | 2000-08-24 | 2001-07-20 | Apparatus for reducing auto-correlation or cross-correlation in weak cdma signals |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US22767400P | 2000-08-24 | 2000-08-24 | |
US60/227,674 | 2000-08-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002016960A1 WO2002016960A1 (en) | 2002-02-28 |
WO2002016960A8 true WO2002016960A8 (en) | 2002-07-11 |
Family
ID=22854021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/023078 WO2002016960A1 (en) | 2000-08-24 | 2001-07-20 | Apparatus for reducing auto-correlation or cross-correlation in weak cdma signals |
Country Status (7)
Country | Link |
---|---|
US (11) | US6466161B2 (en) |
EP (1) | EP1311870B1 (en) |
JP (1) | JP4896353B2 (en) |
AT (1) | ATE507486T1 (en) |
AU (1) | AU2001277085A1 (en) |
DE (1) | DE60144522D1 (en) |
WO (1) | WO2002016960A1 (en) |
Families Citing this family (147)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8352400B2 (en) | 1991-12-23 | 2013-01-08 | Hoffberg Steven M | Adaptive pattern recognition based controller apparatus and method and human-factored interface therefore |
US10361802B1 (en) | 1999-02-01 | 2019-07-23 | Blanding Hovenweep, Llc | Adaptive pattern recognition based control system and method |
US6334219B1 (en) * | 1994-09-26 | 2001-12-25 | Adc Telecommunications Inc. | Channel selection for a hybrid fiber coax network |
US7092369B2 (en) | 1995-11-17 | 2006-08-15 | Symbol Technologies, Inc. | Communications network with wireless gateways for mobile terminal access |
US7966078B2 (en) | 1999-02-01 | 2011-06-21 | Steven Hoffberg | Network media appliance system and method |
US7018401B1 (en) * | 1999-02-01 | 2006-03-28 | Board Of Regents, The University Of Texas System | Woven intravascular devices and methods for making the same and apparatus for delivery of the same |
US7929928B2 (en) * | 2000-05-18 | 2011-04-19 | Sirf Technology Inc. | Frequency phase correction system |
US7970412B2 (en) | 2000-05-18 | 2011-06-28 | Sirf Technology, Inc. | Aided location communication system |
US8078189B2 (en) | 2000-08-14 | 2011-12-13 | Sirf Technology, Inc. | System and method for providing location based services over a network |
US7949362B2 (en) * | 2000-05-18 | 2011-05-24 | Sirf Technology, Inc. | Satellite positioning aided communication system selection |
US7970411B2 (en) | 2000-05-18 | 2011-06-28 | Sirf Technology, Inc. | Aided location communication system |
US6856794B1 (en) * | 2000-07-27 | 2005-02-15 | Sirf Technology, Inc. | Monolithic GPS RF front end integrated circuit |
US7236883B2 (en) * | 2000-08-14 | 2007-06-26 | Sirf Technology, Inc. | Aiding in a satellite positioning system |
JP4896353B2 (en) * | 2000-08-24 | 2012-03-14 | サーフ テクノロジー インコーポレイテッド | Apparatus and method for reducing autocorrelation or cross-correlation in weak CDMA signals |
US7680178B2 (en) | 2000-08-24 | 2010-03-16 | Sirf Technology, Inc. | Cross-correlation detection and elimination in a receiver |
US7187730B1 (en) * | 2001-03-21 | 2007-03-06 | Marvell International Ltd. | Method and apparatus for predicting CCK subsymbols |
US7206352B2 (en) * | 2001-04-02 | 2007-04-17 | Koninklijke Philips Electronics N.V. | ATSC digital television system |
US7668554B2 (en) * | 2001-05-21 | 2010-02-23 | Sirf Technology, Inc. | Network system for aided GPS broadcast positioning |
US7107081B1 (en) | 2001-10-18 | 2006-09-12 | Iwao Fujisaki | Communication device |
US6646596B2 (en) * | 2001-11-13 | 2003-11-11 | Nokia Corporation | Method, system and devices for positioning a receiver |
US9154906B2 (en) * | 2002-03-28 | 2015-10-06 | Telecommunication Systems, Inc. | Area watcher for wireless network |
US8027697B2 (en) * | 2007-09-28 | 2011-09-27 | Telecommunication Systems, Inc. | Public safety access point (PSAP) selection for E911 wireless callers in a GSM type system |
US7426380B2 (en) | 2002-03-28 | 2008-09-16 | Telecommunication Systems, Inc. | Location derived presence information |
US20040203597A1 (en) * | 2002-03-28 | 2004-10-14 | Pitt Lance Douglas | Mobile subscriber privacy evaluation using solicited vs. unsolicited differentiation |
US8918073B2 (en) * | 2002-03-28 | 2014-12-23 | Telecommunication Systems, Inc. | Wireless telecommunications location based services scheme selection |
US20030186699A1 (en) * | 2002-03-28 | 2003-10-02 | Arlene Havlark | Wireless telecommunications location based services scheme selection |
US8290505B2 (en) | 2006-08-29 | 2012-10-16 | Telecommunications Systems, Inc. | Consequential location derived information |
US8126889B2 (en) * | 2002-03-28 | 2012-02-28 | Telecommunication Systems, Inc. | Location fidelity adjustment based on mobile subscriber privacy profile |
US6801855B1 (en) * | 2002-06-28 | 2004-10-05 | Garmin Ltd. | Systems and methods with integrated GPS and dead reckoning capabilities |
US6850844B1 (en) | 2002-06-28 | 2005-02-01 | Garmin Ltd. | Portable navigation device with integrated GPS and dead reckoning capabilities |
US7209076B2 (en) * | 2002-07-10 | 2007-04-24 | Qualcomm Incorporated | Cross-correlation mitigation method and apparatus for use in a global positioning system receiver |
WO2004005954A2 (en) * | 2002-07-10 | 2004-01-15 | Qualcomm, Incorporated | Cross-correlation mitigation method and apparatus for use in a global positioning system receiver |
US6995708B2 (en) * | 2002-07-17 | 2006-02-07 | Gallitzin Allegheny Llc | Local positioning system |
US6873910B2 (en) * | 2002-10-22 | 2005-03-29 | Qualcomm Incorporated | Procedure for searching for position determination signals using a plurality of search modes |
US7132980B2 (en) * | 2002-11-01 | 2006-11-07 | Sirf Technology, Inc. | Multi-function device with positioning system and shared processor |
US8666397B2 (en) | 2002-12-13 | 2014-03-04 | Telecommunication Systems, Inc. | Area event handling when current network does not cover target area |
US20070238455A1 (en) * | 2006-04-07 | 2007-10-11 | Yinjun Zhu | Mobile based area event handling when currently visited network doe not cover area |
US20040156425A1 (en) * | 2003-02-12 | 2004-08-12 | Allan Manz | Reduction of effects of spurious correlations in ranging receivers |
GB2400282B8 (en) * | 2003-03-31 | 2014-08-27 | St Microelectronics Res & Dev | Integrated circuit for code acquisition |
EP1680686A1 (en) | 2003-09-02 | 2006-07-19 | Sirf Technology, Inc. | Signal processing system for satellite positioning signals |
WO2008024123A2 (en) | 2005-10-28 | 2008-02-28 | Sirf Technology, Inc. | Global positioning system receiver timeline management |
US8138972B2 (en) * | 2003-09-02 | 2012-03-20 | Csr Technology Inc. | Signal processing system for satellite positioning signals |
US7822105B2 (en) * | 2003-09-02 | 2010-10-26 | Sirf Technology, Inc. | Cross-correlation removal of carrier wave jamming signals |
US20050065960A1 (en) * | 2003-09-19 | 2005-03-24 | Jen-Lin Chao | Method and system of data management |
US8090402B1 (en) | 2003-09-26 | 2012-01-03 | Iwao Fujisaki | Communication device |
KR100594060B1 (en) * | 2003-10-10 | 2006-06-30 | 삼성전자주식회사 | Mobile communication terminal and method for receiving gps signal |
US8121635B1 (en) | 2003-11-22 | 2012-02-21 | Iwao Fujisaki | Communication device |
GB0327794D0 (en) * | 2003-11-29 | 2003-12-31 | Koninkl Philips Electronics Nv | Positioning method and apparatus |
US7424293B2 (en) | 2003-12-02 | 2008-09-09 | Telecommunication Systems, Inc. | User plane location based service using message tunneling to support roaming |
US7260186B2 (en) | 2004-03-23 | 2007-08-21 | Telecommunication Systems, Inc. | Solutions for voice over internet protocol (VoIP) 911 location services |
US20080090546A1 (en) | 2006-10-17 | 2008-04-17 | Richard Dickinson | Enhanced E911 network access for a call center using session initiation protocol (SIP) messaging |
US20080126535A1 (en) * | 2006-11-28 | 2008-05-29 | Yinjun Zhu | User plane location services over session initiation protocol (SIP) |
US7365680B2 (en) * | 2004-02-10 | 2008-04-29 | Sirf Technology, Inc. | Location services system that reduces auto-correlation or cross-correlation in weak signals |
JP4315832B2 (en) * | 2004-02-17 | 2009-08-19 | 三菱電機株式会社 | Thermal infrared sensor element and thermal infrared sensor array |
JP2005303379A (en) * | 2004-04-06 | 2005-10-27 | Oki Electric Ind Co Ltd | Method and device of radio communication |
US20060021231A1 (en) * | 2004-07-28 | 2006-02-02 | Carey Nancy D | Adaptive scissors |
US9552599B1 (en) | 2004-09-10 | 2017-01-24 | Deem, Inc. | Platform for multi-service procurement |
US7629926B2 (en) * | 2004-10-15 | 2009-12-08 | Telecommunication Systems, Inc. | Culled satellite ephemeris information for quick, accurate assisted locating satellite location determination for cell site antennas |
US6985105B1 (en) * | 2004-10-15 | 2006-01-10 | Telecommunication Systems, Inc. | Culled satellite ephemeris information based on limiting a span of an inverted cone for locating satellite in-range determinations |
US7113128B1 (en) * | 2004-10-15 | 2006-09-26 | Telecommunication Systems, Inc. | Culled satellite ephemeris information for quick, accurate assisted locating satellite location determination for cell site antennas |
US7908080B2 (en) | 2004-12-31 | 2011-03-15 | Google Inc. | Transportation routing |
US7453961B1 (en) | 2005-01-11 | 2008-11-18 | Itt Manufacturing Enterprises, Inc. | Methods and apparatus for detection of signal timing |
US7353034B2 (en) | 2005-04-04 | 2008-04-01 | X One, Inc. | Location sharing and tracking using mobile phones or other wireless devices |
JP2008544979A (en) | 2005-06-29 | 2008-12-11 | ファルマシア・アンド・アップジョン・カンパニー・エルエルシー | Homomorpholine oxazolidinone as an antibacterial agent |
US7706808B1 (en) * | 2005-07-07 | 2010-04-27 | Rearden Commerce, Inc. | One-click service status tracking and updates |
US8660573B2 (en) | 2005-07-19 | 2014-02-25 | Telecommunications Systems, Inc. | Location service requests throttling |
US7729457B2 (en) * | 2005-07-25 | 2010-06-01 | Mstar Semiconductor, Inc. | Method of weak signal acquisition and associated apparatus |
US20070049288A1 (en) * | 2005-08-24 | 2007-03-01 | Lamprecht Leslie J | Creating optimum temporal location trigger for multiple requests |
US9282451B2 (en) | 2005-09-26 | 2016-03-08 | Telecommunication Systems, Inc. | Automatic location identification (ALI) service requests steering, connection sharing and protocol translation |
US7825780B2 (en) * | 2005-10-05 | 2010-11-02 | Telecommunication Systems, Inc. | Cellular augmented vehicle alarm notification together with location services for position of an alarming vehicle |
US20070075848A1 (en) * | 2005-10-05 | 2007-04-05 | Pitt Lance D | Cellular augmented vehicle alarm |
US7907551B2 (en) | 2005-10-06 | 2011-03-15 | Telecommunication Systems, Inc. | Voice over internet protocol (VoIP) location based 911 conferencing |
US8467320B2 (en) | 2005-10-06 | 2013-06-18 | Telecommunication Systems, Inc. | Voice over internet protocol (VoIP) multi-user conferencing |
US7750843B2 (en) * | 2005-10-14 | 2010-07-06 | Accord Software & Systems Pvt. Ltd | Weak signal acquisition |
US9117223B1 (en) | 2005-12-28 | 2015-08-25 | Deem, Inc. | Method and system for resource planning for service provider |
US7443339B2 (en) * | 2006-01-26 | 2008-10-28 | Qualcomm Incorporated | Cross-correlation suppression technique for position location receivers |
US8150363B2 (en) | 2006-02-16 | 2012-04-03 | Telecommunication Systems, Inc. | Enhanced E911 network access for call centers |
US8059789B2 (en) | 2006-02-24 | 2011-11-15 | Telecommunication Systems, Inc. | Automatic location identification (ALI) emergency services pseudo key (ESPK) |
US7471236B1 (en) * | 2006-03-01 | 2008-12-30 | Telecommunication Systems, Inc. | Cellular augmented radar/laser detector |
US9167553B2 (en) | 2006-03-01 | 2015-10-20 | Telecommunication Systems, Inc. | GeoNexus proximity detector network |
US7899450B2 (en) * | 2006-03-01 | 2011-03-01 | Telecommunication Systems, Inc. | Cellular augmented radar/laser detection using local mobile network within cellular network |
PL1994423T3 (en) * | 2006-03-03 | 2011-03-31 | Agence Spatiale Europeenne | Method of processing positioning signals, in particular for indoor applications. |
US8208605B2 (en) | 2006-05-04 | 2012-06-26 | Telecommunication Systems, Inc. | Extended efficient usage of emergency services keys |
US7656348B2 (en) * | 2006-05-19 | 2010-02-02 | Qualcomm Incorporated | System and/or method for determining sufficiency of pseudorange measurements |
EP2074840A4 (en) * | 2006-09-26 | 2015-08-05 | Telecomm Systems Inc | Location object proxy |
EP1916535B1 (en) * | 2006-10-26 | 2015-11-18 | Qualcomm Incorporated | GNSS receiver with cross-correlation rejection |
WO2008057477A2 (en) | 2006-11-03 | 2008-05-15 | Telecommunication Systems, Inc. | Roaming gateway enabling location based services (lbs) roaming for user plane in cdma networks without requiring use of a mobile positioning center (mpc) |
US7769380B2 (en) * | 2006-12-20 | 2010-08-03 | King Fahd University Of Petroleum And Minerals | Method for reducing the rate of registration in CDMA-based mobile networks |
US20080167018A1 (en) * | 2007-01-10 | 2008-07-10 | Arlene Havlark | Wireless telecommunications location based services scheme selection |
US7643537B1 (en) | 2007-01-23 | 2010-01-05 | L-3 Communications, Corp. | Spread spectrum signal detection with inhibiting for known sidelobe locations |
US8050386B2 (en) | 2007-02-12 | 2011-11-01 | Telecommunication Systems, Inc. | Mobile automatic location identification (ALI) for first responders |
EP1980867A3 (en) * | 2007-04-10 | 2009-11-25 | Qualcomm Incorporated | Multipath mitigation using sensors |
US20080303663A1 (en) * | 2007-06-08 | 2008-12-11 | Nemerix Sa | Method for verifying the integrity of a container |
US7852908B1 (en) | 2007-06-08 | 2010-12-14 | Rf Micro Devices, Inc. | Combined digital filter and correlator |
JP2010538243A (en) * | 2007-06-08 | 2010-12-09 | クゥアルコム・インコーポレイテッド | GNSS positioning using pressure sensor |
US8185087B2 (en) * | 2007-09-17 | 2012-05-22 | Telecommunication Systems, Inc. | Emergency 911 data messaging |
US7929530B2 (en) * | 2007-11-30 | 2011-04-19 | Telecommunication Systems, Inc. | Ancillary data support in session initiation protocol (SIP) messaging |
US9130963B2 (en) | 2011-04-06 | 2015-09-08 | Telecommunication Systems, Inc. | Ancillary data support in session initiation protocol (SIP) messaging |
US20090153397A1 (en) * | 2007-12-14 | 2009-06-18 | Mediatek Inc. | Gnss satellite signal interference handling method and correlator implementing the same |
US8763892B2 (en) | 2007-12-31 | 2014-07-01 | Oridon Medical 1987 Ltd. | Tube verifier |
US8340726B1 (en) | 2008-06-30 | 2012-12-25 | Iwao Fujisaki | Communication device |
US8068587B2 (en) | 2008-08-22 | 2011-11-29 | Telecommunication Systems, Inc. | Nationwide table routing of voice over internet protocol (VOIP) emergency calls |
US9036683B2 (en) | 2008-10-02 | 2015-05-19 | Texas Instruments Incorporated | Mitigation circuitry generating cross correlation doppler/code LAG variable comparison value |
US8892128B2 (en) | 2008-10-14 | 2014-11-18 | Telecommunication Systems, Inc. | Location based geo-reminders |
EP2347395A4 (en) | 2008-10-14 | 2016-11-02 | Telecomm Systems Inc | Location based proximity alert |
US20100214118A1 (en) * | 2009-02-20 | 2010-08-26 | Paul Losee | System and method for tracking a person |
US10552849B2 (en) | 2009-04-30 | 2020-02-04 | Deem, Inc. | System and method for offering, tracking and promoting loyalty rewards |
US9301191B2 (en) | 2013-09-20 | 2016-03-29 | Telecommunication Systems, Inc. | Quality of service to over the top applications used with VPN |
US8867485B2 (en) * | 2009-05-05 | 2014-10-21 | Telecommunication Systems, Inc. | Multiple location retrieval function (LRF) network having location continuity |
CN101881818B (en) * | 2009-05-06 | 2012-03-07 | 中国科学院微电子研究所 | Device and method for rapidly detecting feeble signals |
US20110009086A1 (en) * | 2009-07-10 | 2011-01-13 | Todd Poremba | Text to 9-1-1 emergency communication |
JP5368213B2 (en) * | 2009-08-20 | 2013-12-18 | 日本無線株式会社 | GNSS receiver |
US20110064046A1 (en) * | 2009-09-11 | 2011-03-17 | Yinjun Zhu | User plane emergency location continuity for voice over internet protocol (VoIP)/IMS emergency services |
US20110149953A1 (en) * | 2009-12-23 | 2011-06-23 | William Helgeson | Tracking results of a v2 query in voice over internet (VoIP) emergency call systems |
US8336664B2 (en) | 2010-07-09 | 2012-12-25 | Telecommunication Systems, Inc. | Telematics basic mobile device safety interlock |
WO2012005769A1 (en) | 2010-07-09 | 2012-01-12 | Telecommunication Systems, Inc. | Location privacy selector |
US9170124B2 (en) | 2010-09-17 | 2015-10-27 | Seer Technology, Inc. | Variable step tracking |
US9222784B2 (en) | 2010-09-17 | 2015-12-29 | Myles L. Strohl | Building perpendicularity testing and adjustment |
US8688087B2 (en) | 2010-12-17 | 2014-04-01 | Telecommunication Systems, Inc. | N-dimensional affinity confluencer |
US8942743B2 (en) | 2010-12-17 | 2015-01-27 | Telecommunication Systems, Inc. | iALERT enhanced alert manager |
WO2012141762A1 (en) | 2011-02-25 | 2012-10-18 | Telecommunication Systems, Inc. | Mobile internet protocol (ip) location |
US9449288B2 (en) | 2011-05-20 | 2016-09-20 | Deem, Inc. | Travel services search |
US9047600B2 (en) * | 2011-07-18 | 2015-06-02 | Andrew H B Zhou | Mobile and wearable device payments via free cross-platform messaging service, free voice over internet protocol communication, free over-the-top content communication, and universal digital mobile and wearable device currency faces |
US8649806B2 (en) | 2011-09-02 | 2014-02-11 | Telecommunication Systems, Inc. | Aggregate location dynometer (ALD) |
US9479344B2 (en) | 2011-09-16 | 2016-10-25 | Telecommunication Systems, Inc. | Anonymous voice conversation |
US8831556B2 (en) | 2011-09-30 | 2014-09-09 | Telecommunication Systems, Inc. | Unique global identifier header for minimizing prank emergency 911 calls |
US9264537B2 (en) | 2011-12-05 | 2016-02-16 | Telecommunication Systems, Inc. | Special emergency call treatment based on the caller |
US9313637B2 (en) | 2011-12-05 | 2016-04-12 | Telecommunication Systems, Inc. | Wireless emergency caller profile data delivery over a legacy interface |
US8984591B2 (en) | 2011-12-16 | 2015-03-17 | Telecommunications Systems, Inc. | Authentication via motion of wireless device movement |
US9384339B2 (en) | 2012-01-13 | 2016-07-05 | Telecommunication Systems, Inc. | Authenticating cloud computing enabling secure services |
US8688174B2 (en) | 2012-03-13 | 2014-04-01 | Telecommunication Systems, Inc. | Integrated, detachable ear bud device for a wireless phone |
US9307372B2 (en) | 2012-03-26 | 2016-04-05 | Telecommunication Systems, Inc. | No responders online |
US9544260B2 (en) | 2012-03-26 | 2017-01-10 | Telecommunication Systems, Inc. | Rapid assignment dynamic ownership queue |
US9338153B2 (en) | 2012-04-11 | 2016-05-10 | Telecommunication Systems, Inc. | Secure distribution of non-privileged authentication credentials |
US8843313B2 (en) * | 2012-06-13 | 2014-09-23 | The Boeing Company | Multipath isolation through the combined use of antenna diversity and frequency diversity |
US9313638B2 (en) | 2012-08-15 | 2016-04-12 | Telecommunication Systems, Inc. | Device independent caller data access for emergency calls |
US9208346B2 (en) | 2012-09-05 | 2015-12-08 | Telecommunication Systems, Inc. | Persona-notitia intellection codifier |
US9456301B2 (en) | 2012-12-11 | 2016-09-27 | Telecommunication Systems, Inc. | Efficient prisoner tracking |
US8983047B2 (en) | 2013-03-20 | 2015-03-17 | Telecommunication Systems, Inc. | Index of suspicion determination for communications request |
IN2013CH03050A (en) * | 2013-07-08 | 2015-09-04 | Accord Software & Systems Pvt Ltd | |
US9408034B2 (en) | 2013-09-09 | 2016-08-02 | Telecommunication Systems, Inc. | Extended area event for network based proximity discovery |
US9516104B2 (en) | 2013-09-11 | 2016-12-06 | Telecommunication Systems, Inc. | Intelligent load balancer enhanced routing |
US9479897B2 (en) | 2013-10-03 | 2016-10-25 | Telecommunication Systems, Inc. | SUPL-WiFi access point controller location based services for WiFi enabled mobile devices |
US9897701B2 (en) | 2013-10-08 | 2018-02-20 | Samsung Electronics Co., Ltd | Method for efficiently detecting impairments in a multi-constellation GNSS receiver |
FR3045167B1 (en) * | 2015-12-11 | 2018-01-26 | Thales | METHODS AND DEVICES FOR SYNCHRONIZATION VALIDATION BETWEEN A GEOLOCATION RECEIVER AND A TRANSMITTER SATELLITE |
US10742257B1 (en) * | 2018-09-26 | 2020-08-11 | Novatel Inc. | System and method for demodulating code shift keying data from a satellite signal utilizing a binary search |
CN110687558B (en) * | 2019-12-11 | 2020-05-12 | 深圳微品致远信息科技有限公司 | Independent double-baseline calculation verification method based on Beidou dynamic positioning |
Family Cites Families (148)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4445118A (en) | 1981-05-22 | 1984-04-24 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Navigation system and method |
US4426712A (en) * | 1981-05-22 | 1984-01-17 | Massachusetts Institute Of Technology | Correlation system for global position receiver |
US4462712A (en) * | 1981-07-16 | 1984-07-31 | Quality Mat Company | Method and apparatus for a construction site flooring system |
US4463357A (en) | 1981-11-17 | 1984-07-31 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method and apparatus for calibrating the ionosphere and application to surveillance of geophysical events |
JPS58105632A (en) | 1981-12-17 | 1983-06-23 | Mitsubishi Electric Corp | Receiver |
US4449248A (en) | 1982-02-01 | 1984-05-15 | General Electric Company | Battery saving radio circuit and system |
US4894662A (en) | 1982-03-01 | 1990-01-16 | Western Atlas International, Inc. | Method and system for determining position on a moving platform, such as a ship, using signals from GPS satellites |
US4809005A (en) | 1982-03-01 | 1989-02-28 | Western Atlas International, Inc. | Multi-antenna gas receiver for seismic survey vessels |
US4667203A (en) * | 1982-03-01 | 1987-05-19 | Aero Service Div, Western Geophysical | Method and system for determining position using signals from satellites |
US4870422A (en) * | 1982-03-01 | 1989-09-26 | Western Atlas International, Inc. | Method and system for determining position from signals from satellites |
US4578678A (en) | 1983-11-14 | 1986-03-25 | The United States Of America As Represented By The United States National Aeronautics And Space Administration | High dynamic global positioning system receiver |
US4754465A (en) | 1984-05-07 | 1988-06-28 | Trimble Navigation, Inc. | Global positioning system course acquisition code receiver |
US4785463A (en) | 1985-09-03 | 1988-11-15 | Motorola, Inc. | Digital global positioning system receiver |
US4701934A (en) * | 1985-09-03 | 1987-10-20 | Motorola, Inc. | Method of doppler searching in a digital GPS receiver |
DE3736386A1 (en) * | 1986-10-27 | 1988-07-14 | Pioneer Electronic Corp | VEHICLE BORING PROCESS |
US4821294A (en) * | 1987-07-08 | 1989-04-11 | California Institute Of Technology | Digital signal processor and processing method for GPS receivers |
JP2666454B2 (en) * | 1989-01-24 | 1997-10-22 | 富士通株式会社 | Wireless automatic alarm transfer method |
KR950000050B1 (en) | 1989-03-20 | 1995-01-07 | 모토로라 인코포레이티드 | Dsp based radio |
US5108334A (en) | 1989-06-01 | 1992-04-28 | Trimble Navigation, Ltd. | Dual down conversion GPS receiver with single local oscillator |
US5000415A (en) * | 1989-11-08 | 1991-03-19 | Newport Corporation | Active vibration isolation systems |
JPH073463B2 (en) * | 1989-11-22 | 1995-01-18 | パイオニア株式会社 | Satellite radio wave capturing method of GPS receiver |
US4998111A (en) * | 1989-11-27 | 1991-03-05 | Motorola, Inc. | CPS transform correlation receiver and method |
US5043736B1 (en) * | 1990-07-27 | 1994-09-06 | Cae Link Corp | Cellular position location system |
KR940009235B1 (en) | 1990-09-12 | 1994-10-01 | 미쯔비시 덴끼 가부시끼가이샤 | On-board vehicle position detector |
US5434970A (en) | 1991-02-14 | 1995-07-18 | Cray Research, Inc. | System for distributed multiprocessor communication |
US5347284A (en) * | 1991-02-28 | 1994-09-13 | Texas Instruments Incorporated | System and method for a digital navigation satellite receiver |
US5245628A (en) | 1991-03-29 | 1993-09-14 | Texas Instruments Incorporated | Enhanced l1/l2 code channel for global positioning system receivers |
US5134407A (en) * | 1991-04-10 | 1992-07-28 | Ashtech Telesis, Inc. | Global positioning system receiver digital processing technique |
JPH04326079A (en) | 1991-04-26 | 1992-11-16 | Nippondenso Co Ltd | Gps receiver |
US5225842A (en) | 1991-05-09 | 1993-07-06 | Navsys Corporation | Vehicle tracking system employing global positioning system (gps) satellites |
US5202829A (en) * | 1991-06-10 | 1993-04-13 | Trimble Navigation Limited | Exploration system and method for high-accuracy and high-confidence level relative position and velocity determinations |
US5311195A (en) * | 1991-08-30 | 1994-05-10 | Etak, Inc. | Combined relative and absolute positioning method and apparatus |
US5379224A (en) | 1991-11-29 | 1995-01-03 | Navsys Corporation | GPS tracking system |
US5414729A (en) * | 1992-01-24 | 1995-05-09 | Novatel Communications Ltd. | Pseudorandom noise ranging receiver which compensates for multipath distortion by making use of multiple correlator time delay spacing |
US5323164A (en) * | 1992-03-16 | 1994-06-21 | Pioneer Electronic Corporation | Satellite radio wave capturing method for a global positioning system (GPS) receiver |
US5343209A (en) * | 1992-05-07 | 1994-08-30 | Sennott James W | Navigation receiver with coupled signal-tracking channels |
US5889474A (en) * | 1992-05-18 | 1999-03-30 | Aeris Communications, Inc. | Method and apparatus for transmitting subject status information over a wireless communications network |
JP3283913B2 (en) * | 1992-08-20 | 2002-05-20 | 日本無線株式会社 | GPS receiver |
JPH06143103A (en) * | 1992-10-29 | 1994-05-24 | Pfu Ltd | Mixed production system and pallet used therefor |
DE4236982A1 (en) * | 1992-11-02 | 1994-05-05 | Philips Patentverwaltung | Cellular mobile radio system |
US5345244A (en) | 1993-01-12 | 1994-09-06 | Trimble Navigation Limited | Cordless SPS smart antenna device |
US5347536A (en) | 1993-03-17 | 1994-09-13 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Multipath noise reduction for spread spectrum signals |
US5420593A (en) * | 1993-04-09 | 1995-05-30 | Trimble Navigation Limited | Method and apparatus for accelerating code correlation searches in initial acquisition and doppler and code phase in re-acquisition of GPS satellite signals |
US5917444A (en) * | 1995-05-22 | 1999-06-29 | Trimble Navigation Ltd. | Reduction of time to first fix in an SATPS receiver |
US5440313A (en) * | 1993-05-27 | 1995-08-08 | Stellar Gps Corporation | GPS synchronized frequency/time source |
US5416712A (en) | 1993-05-28 | 1995-05-16 | Trimble Navigation Limited | Position and velocity estimation system for adaptive weighting of GPS and dead-reckoning information |
JPH0736035A (en) | 1993-07-22 | 1995-02-07 | Ohtsu Tire & Rubber Co Ltd :The | Surface light emitter |
US5402347A (en) * | 1993-07-22 | 1995-03-28 | Trimble Navigation Limited | Satellite search methods for improving time to first fix in a GPS receiver |
US5504684A (en) | 1993-12-10 | 1996-04-02 | Trimble Navigation Limited | Single-chip GPS receiver digital signal processing and microcomputer |
US5907809A (en) * | 1994-01-11 | 1999-05-25 | Ericsson Inc. | Position determination using multiple base station signals |
US5936572A (en) * | 1994-02-04 | 1999-08-10 | Trimble Navigation Limited | Portable hybrid location determination system |
US5625668A (en) | 1994-04-12 | 1997-04-29 | Trimble Navigation Limited | Position reporting cellular telephone |
US5450344A (en) | 1994-04-22 | 1995-09-12 | Trimble Navigation Limited | GPS receivers with data ports for the uploading and downloading of absolute position information |
US5535278A (en) | 1994-05-02 | 1996-07-09 | Magnavox Electronic Systems Company | Global positioning system (GPS) receiver for recovery and tracking of signals modulated with P-code |
US5592173A (en) | 1994-07-18 | 1997-01-07 | Trimble Navigation, Ltd | GPS receiver having a low power standby mode |
US5734977A (en) | 1994-11-10 | 1998-03-31 | Telefonaktiebolaget Lm Ericsson | Fraud detection in radio communications network |
US5786789A (en) | 1994-11-14 | 1998-07-28 | Trimble Navigation Limited | GPS and cellphone unit having add-on modules |
US5721555A (en) | 1994-12-19 | 1998-02-24 | Trimble Navigation Limited | Frequency spectral line tracking receiver |
US5721155A (en) * | 1995-02-13 | 1998-02-24 | Lg Semicon Co., Ltd. | Method for forming a via contact of a semiconductor device |
US5748651A (en) | 1995-05-05 | 1998-05-05 | Trumble Navigation Limited | Optimum utilization of pseudorange and range rate corrections by SATPS receiver |
AU7396096A (en) * | 1995-10-09 | 1997-04-30 | Precision Tracking, Inc. | Improved gps receivers and garments containing gps receivers and methods for using these gps receivers |
US6131067A (en) | 1995-10-09 | 2000-10-10 | Snaptrack, Inc. | Client-server based remote locator device |
US6002363A (en) | 1996-03-08 | 1999-12-14 | Snaptrack, Inc. | Combined GPS positioning system and communications system utilizing shared circuitry |
DE69625496T2 (en) | 1995-10-09 | 2003-10-30 | Snaptrack Inc | GPS RECEIVER AND METHOD FOR PROCESSING GPS SIGNALS |
US6208290B1 (en) * | 1996-03-08 | 2001-03-27 | Snaptrack, Inc. | GPS receiver utilizing a communication link |
US5841396A (en) * | 1996-03-08 | 1998-11-24 | Snaptrack, Inc. | GPS receiver utilizing a communication link |
US5831574A (en) | 1996-03-08 | 1998-11-03 | Snaptrack, Inc. | Method and apparatus for determining the location of an object which may have an obstructed view of the sky |
US5825327A (en) | 1996-03-08 | 1998-10-20 | Snaptrack, Inc. | GPS receivers and garments containing GPS receivers and methods for using these GPS receivers |
US6633255B2 (en) | 1995-10-09 | 2003-10-14 | Qualcomm Inc. | Method for open loop tracking GPS signals |
US5884214A (en) | 1996-09-06 | 1999-03-16 | Snaptrack, Inc. | GPS receiver and method for processing GPS signals |
US5663734A (en) | 1995-10-09 | 1997-09-02 | Precision Tracking, Inc. | GPS receiver and method for processing GPS signals |
AU7396596A (en) * | 1995-10-09 | 1997-04-30 | Precision Tracking, Inc. | Method and apparatus for determining the location of an object which may have an obstructed view of the sky |
GB2339099B (en) * | 1995-10-24 | 2000-05-31 | Inmarsat Ltd | Satellite radiodetermination |
US5845203A (en) | 1996-01-25 | 1998-12-01 | Aertis Cormmunications | Remote access application messaging wireless method |
US5945944A (en) | 1996-03-08 | 1999-08-31 | Snaptrack, Inc. | Method and apparatus for determining time for GPS receivers |
US6133874A (en) | 1996-03-08 | 2000-10-17 | Snaptrack, Inc. | Method and apparatus for acquiring satellite positioning system signals |
US5901171A (en) | 1996-03-15 | 1999-05-04 | Sirf Technology, Inc. | Triple multiplexing spread spectrum receiver |
US6047017A (en) * | 1996-04-25 | 2000-04-04 | Cahn; Charles R. | Spread spectrum receiver with multi-path cancellation |
US5663735A (en) * | 1996-05-20 | 1997-09-02 | Trimble Navigation Limited | GPS receiver using a radio signal for improving time to first fix |
US5907578A (en) * | 1996-05-20 | 1999-05-25 | Trimble Navigation | Weighted carrier phase multipath reduction |
US5963601A (en) | 1996-05-20 | 1999-10-05 | Trimble Navigation Limited | Variable suppression of multipath signal effects |
US5963582A (en) | 1996-05-24 | 1999-10-05 | Leica Geosystems Inc. | Mitigation of multipath effects in global positioning system receivers |
US5828694A (en) | 1996-07-01 | 1998-10-27 | Trimble Navigation Limited | Determination of multipath tracking error |
US5854605A (en) | 1996-07-05 | 1998-12-29 | Trimble Navigation Limited | GPS receiver using data bit timing to achieve a fast time to first fix |
US5982811A (en) | 1996-07-12 | 1999-11-09 | General Electric Company | Method for efficient sampling in a correlator |
US6028887A (en) * | 1996-07-12 | 2000-02-22 | General Electric Company | Power efficient receiver |
US6009118A (en) | 1996-07-12 | 1999-12-28 | General Electric Company | Parallel correlator for a spread spectrum receiver |
US5943363A (en) | 1996-07-17 | 1999-08-24 | Stanford Telecommunications, Inc. | Digital spread spectrum GPS navigation receiver |
US5966403A (en) * | 1996-07-19 | 1999-10-12 | Trimble Navigation Limited | Code multipath error estimation using weighted correlations |
US6185427B1 (en) * | 1996-09-06 | 2001-02-06 | Snaptrack, Inc. | Distributed satellite position system processing and application network |
JP3256472B2 (en) | 1996-09-11 | 2002-02-12 | セイコーインスツルメンツ株式会社 | GPS receiver |
US5808582A (en) | 1996-09-13 | 1998-09-15 | Litton Consulting Group, Inc. | Global positioning system receiver with improved multipath signal rejection |
US5995042A (en) * | 1997-01-02 | 1999-11-30 | Motorola, Inc. | Spoofer detection power management for GPS receivers |
US5812087A (en) * | 1997-02-03 | 1998-09-22 | Snaptrack, Inc. | Method and apparatus for satellite positioning system based time measurement |
US6215442B1 (en) * | 1997-02-03 | 2001-04-10 | Snaptrack, Inc. | Method and apparatus for determining time in a satellite positioning system |
US6377209B1 (en) * | 1997-02-03 | 2002-04-23 | Snaptrack, Inc. | Method and apparatus for satellite positioning system (SPS) time measurement |
US6289041B1 (en) | 1997-02-11 | 2001-09-11 | Snaptrack, Inc. | Fast Acquisition, high sensitivity GPS receiver |
US5883594A (en) | 1997-02-20 | 1999-03-16 | Trimble Navigation Limited | GPS receiver using a message system for reducing power consumption |
US5877725A (en) | 1997-03-06 | 1999-03-02 | Trimble Navigation Limited | Wide augmentation system retrofit receiver |
US5987381A (en) * | 1997-03-11 | 1999-11-16 | Visteon Technologies, Llc | Automobile navigation system using remote download of data |
US5877724A (en) | 1997-03-25 | 1999-03-02 | Trimble Navigation Limited | Combined position locating and cellular telephone system with a single shared microprocessor |
US6249542B1 (en) | 1997-03-28 | 2001-06-19 | Sirf Technology, Inc. | Multipath processing for GPS receivers |
US5917866A (en) * | 1997-04-04 | 1999-06-29 | Trimble Navigation Limited | Code multipath estimation for weighted or modified tracking using weighted or modified correlations |
US6332086B2 (en) * | 1997-04-07 | 2001-12-18 | Graham Avis | Discontinuous receive operation in a wireless terminal |
US6411254B1 (en) * | 1997-04-15 | 2002-06-25 | Snaptrack, Inc. | Satellite positioning reference system and method |
US6215441B1 (en) * | 1997-04-15 | 2001-04-10 | Snaptrack, Inc. | Satellite positioning reference system and method |
US5920283A (en) | 1997-05-09 | 1999-07-06 | Conexant Systems, Inc. | Receiver engine for global positioning system |
US5903654A (en) | 1997-08-06 | 1999-05-11 | Rockwell Science Center, Inc. | Method and apparatus for eliminating ionospheric delay error in global positioning system signals |
US6041222A (en) | 1997-09-08 | 2000-03-21 | Ericsson Inc. | Systems and methods for sharing reference frequency signals within a wireless mobile terminal between a wireless transceiver and a global positioning system receiver |
JP3694395B2 (en) * | 1997-10-09 | 2005-09-14 | 松下電器産業株式会社 | GPS receiver and receiving method |
US5987016A (en) | 1997-11-04 | 1999-11-16 | Motorola, Inc. | Method and apparatus for tracking a communication signal in a wireless communication system |
US6107960A (en) | 1998-01-20 | 2000-08-22 | Snaptrack, Inc. | Reducing cross-interference in a combined GPS receiver and communication system |
US5977909A (en) | 1998-03-13 | 1999-11-02 | General Electric Company | Method and apparatus for locating an object using reduced number of GPS satellite signals or with improved accuracy |
JP2917990B2 (en) * | 1998-03-26 | 1999-07-12 | 株式会社デンソー | Pseudo-noise code generator |
US6002362A (en) | 1998-04-20 | 1999-12-14 | Caterpillar Inc. | Apparatus and method for receiving position and control signals by a mobile machine |
US5999124A (en) | 1998-04-22 | 1999-12-07 | Snaptrack, Inc, | Satellite positioning system augmentation with wireless communication signals |
US6104338A (en) | 1998-05-04 | 2000-08-15 | Snaptrack, Inc. | Method and apparatus for operating a satellite positioning system receiver |
US6061018A (en) | 1998-05-05 | 2000-05-09 | Snaptrack, Inc. | Method and system for using altitude information in a satellite positioning system |
US5982324A (en) | 1998-05-14 | 1999-11-09 | Nortel Networks Corporation | Combining GPS with TOA/TDOA of cellular signals to locate terminal |
US6178195B1 (en) * | 1998-05-14 | 2001-01-23 | Motorola, Inc. | Method and apparatus for detecting spread spectrum signals using a signal from a secondary source |
US6208291B1 (en) * | 1998-05-29 | 2001-03-27 | Snaptrack, Inc. | Highly parallel GPS correlator system and method |
US6133873A (en) * | 1998-06-03 | 2000-10-17 | Krasner; Norman F. | Method and apparatus for adaptively processing GPS signals in a GPS receiver |
US6314308B1 (en) * | 1998-07-02 | 2001-11-06 | Snaptrack, Inc. | Method and apparatus for providing reserve power in a cellular telephone |
US6313786B1 (en) * | 1998-07-02 | 2001-11-06 | Snaptrack, Inc. | Method and apparatus for measurement processing of satellite positioning system (SPS) signals |
US6236354B1 (en) | 1998-07-02 | 2001-05-22 | Snaptrack, Inc. | Reducing satellite signal interference in a global positioning system receiver |
US6327473B1 (en) * | 1998-09-08 | 2001-12-04 | Qualcomm Incorporated | Method and apparatus for increasing the sensitivity of a global positioning satellite receiver |
JP3115864B2 (en) * | 1998-10-21 | 2000-12-11 | 株式会社デルタツーリング | Ambulance isolation stand |
WO2000028346A1 (en) * | 1998-11-11 | 2000-05-18 | Samsung Electronics Company, Limited | Digital correlator for a receptor of signals from satellite radio-navigation systems |
US6295024B1 (en) * | 1999-02-19 | 2001-09-25 | Motorola, Inc. | Autonomous data aided GPS signal acquisition method and system |
US6608589B1 (en) * | 1999-04-21 | 2003-08-19 | The Johns Hopkins University | Autonomous satellite navigation system |
US6829534B2 (en) | 1999-04-23 | 2004-12-07 | Global Locate, Inc. | Method and apparatus for performing timing synchronization |
US6453237B1 (en) * | 1999-04-23 | 2002-09-17 | Global Locate, Inc. | Method and apparatus for locating and providing services to mobile devices |
US6411892B1 (en) * | 2000-07-13 | 2002-06-25 | Global Locate, Inc. | Method and apparatus for locating mobile receivers using a wide area reference network for propagating ephemeris |
JP4092857B2 (en) * | 1999-06-17 | 2008-05-28 | ソニー株式会社 | Image display device |
JP4326079B2 (en) | 1999-08-10 | 2009-09-02 | 本田技研工業株式会社 | Cylindrical electric double layer capacitor |
US6313787B1 (en) | 1999-11-12 | 2001-11-06 | Motorola, Inc. | Method and apparatus for assisted GPS protocol |
US6282231B1 (en) | 1999-12-14 | 2001-08-28 | Sirf Technology, Inc. | Strong signal cancellation to enhance processing of weak spread spectrum signal |
US6650694B1 (en) * | 2000-02-18 | 2003-11-18 | Texas Instruments Incorporated | Correlator co-processor for CDMA RAKE receiver operations |
US6901260B1 (en) * | 2000-03-03 | 2005-05-31 | Lucent Technologies Inc. | Differential GPS and/or glonass with wireless communications capability |
WO2001084745A1 (en) * | 2000-05-03 | 2001-11-08 | Magellan Corporation | Method and apparatus for interference reduction |
US6873288B2 (en) * | 2000-06-14 | 2005-03-29 | Stephen B. Heppe | Enhanced GNSS receiver |
JP4896353B2 (en) * | 2000-08-24 | 2012-03-14 | サーフ テクノロジー インコーポレイテッド | Apparatus and method for reducing autocorrelation or cross-correlation in weak CDMA signals |
US6429814B1 (en) | 2000-11-17 | 2002-08-06 | Global Locate, Inc. | Method and apparatus for enhancing a global positioning system with terrain model |
US6417801B1 (en) * | 2000-11-17 | 2002-07-09 | Global Locate, Inc. | Method and apparatus for time-free processing of GPS signals |
US6529929B2 (en) * | 2001-03-22 | 2003-03-04 | Teleman Multimedia, Inc. | Quantization device and method using prime number dividers |
FR2843638B1 (en) | 2002-08-13 | 2004-10-22 | Thales Sa | SATELLITE POSITIONING RECEIVER WITH INTER-CORRELATION ERROR CORRECTION |
WO2004031798A2 (en) * | 2002-10-01 | 2004-04-15 | Sirf Technology, Inc. | Fast search gps receiver |
US7365680B2 (en) * | 2004-02-10 | 2008-04-29 | Sirf Technology, Inc. | Location services system that reduces auto-correlation or cross-correlation in weak signals |
-
2001
- 2001-07-20 JP JP2002521998A patent/JP4896353B2/en not_active Expired - Fee Related
- 2001-07-20 US US09/910,091 patent/US6466161B2/en not_active Expired - Lifetime
- 2001-07-20 US US09/910,404 patent/US6680695B2/en not_active Expired - Lifetime
- 2001-07-20 AU AU2001277085A patent/AU2001277085A1/en not_active Abandoned
- 2001-07-20 WO PCT/US2001/023078 patent/WO2002016960A1/en active Application Filing
- 2001-07-20 DE DE60144522T patent/DE60144522D1/en not_active Expired - Lifetime
- 2001-07-20 EP EP01954865A patent/EP1311870B1/en not_active Expired - Lifetime
- 2001-07-20 US US09/909,716 patent/US7106786B2/en not_active Expired - Fee Related
- 2001-07-20 AT AT01954865T patent/ATE507486T1/en not_active IP Right Cessation
- 2001-07-20 US US09/909,717 patent/US6529829B2/en not_active Expired - Lifetime
- 2001-07-20 US US09/910,092 patent/US7197305B2/en not_active Expired - Fee Related
-
2002
- 2002-09-16 US US10/244,293 patent/US6707423B2/en not_active Expired - Lifetime
-
2003
- 2003-11-12 US US10/712,789 patent/US7183972B2/en not_active Expired - Fee Related
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2004
- 2004-02-10 US US10/775,870 patent/US7026986B2/en not_active Expired - Fee Related
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2006
- 2006-08-02 US US11/498,532 patent/US7724807B2/en not_active Expired - Fee Related
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2007
- 2007-02-19 US US11/676,502 patent/US7719466B2/en not_active Expired - Fee Related
- 2007-02-19 US US11/676,501 patent/US20070207803A1/en not_active Abandoned
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US20070207803A1 (en) | 2007-09-06 |
US7183972B2 (en) | 2007-02-27 |
US7719466B2 (en) | 2010-05-18 |
US20020025828A1 (en) | 2002-02-28 |
WO2002016960A1 (en) | 2002-02-28 |
US20020024463A1 (en) | 2002-02-28 |
EP1311870B1 (en) | 2011-04-27 |
JP2004507920A (en) | 2004-03-11 |
AU2001277085A1 (en) | 2002-03-04 |
US7026986B2 (en) | 2006-04-11 |
US7724807B2 (en) | 2010-05-25 |
US6529829B2 (en) | 2003-03-04 |
US20040137914A1 (en) | 2004-07-15 |
US20080001817A1 (en) | 2008-01-03 |
US6680695B2 (en) | 2004-01-20 |
US20020064209A1 (en) | 2002-05-30 |
US20020024462A1 (en) | 2002-02-28 |
ATE507486T1 (en) | 2011-05-15 |
US6466161B2 (en) | 2002-10-15 |
US7106786B2 (en) | 2006-09-12 |
US20030011512A1 (en) | 2003-01-16 |
JP4896353B2 (en) | 2012-03-14 |
DE60144522D1 (en) | 2011-06-09 |
EP1311870A1 (en) | 2003-05-21 |
US20070030888A1 (en) | 2007-02-08 |
US20040217901A1 (en) | 2004-11-04 |
US7197305B2 (en) | 2007-03-27 |
US20020026282A1 (en) | 2002-02-28 |
US6707423B2 (en) | 2004-03-16 |
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