WO2002041027A3 - Enhancing a gps with a terrain model - Google Patents

Enhancing a gps with a terrain model

Info

Publication number
WO2002041027A3
WO2002041027A3 PCT/US2001/047162 US0147162W WO0241027A3 WO 2002041027 A3 WO2002041027 A3 WO 2002041027A3 US 0147162 W US0147162 W US 0147162W WO 0241027 A3 WO0241027 A3 WO 0241027A3
Authority
WO
WIPO (PCT)
Prior art keywords
terrain model
gps
enhancing
possible positions
pseudorange measurements
Prior art date
Application number
PCT/US2001/047162
Other languages
French (fr)
Other versions
WO2002041027A2 (en
WO2002041027A9 (en
Inventor
Frank Van Diggelen
Charles Abraham
Original Assignee
Global Locate Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Global Locate Inc filed Critical Global Locate Inc
Priority to JP2002542897A priority Critical patent/JP2004514144A/en
Priority to EP01990915A priority patent/EP1342329B1/en
Priority to KR1020037006694A priority patent/KR100800628B1/en
Priority to AT01990915T priority patent/ATE510365T1/en
Publication of WO2002041027A2 publication Critical patent/WO2002041027A2/en
Publication of WO2002041027A9 publication Critical patent/WO2002041027A9/en
Publication of WO2002041027A3 publication Critical patent/WO2002041027A3/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42Determining position
    • G01S19/50Determining position whereby the position solution is constrained to lie upon a particular curve or surface, e.g. for locomotives on railway tracks
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13Receivers

Abstract

A method and apparatus that computes three-dimensional position using a terrain model (108) and pseudorange measurements that are computed satellite signals. The pseudorange measurements provide a set of possible positions and the terrain model is used to identify the correct position amongst the possible positions.
PCT/US2001/047162 2000-11-17 2001-11-13 Enhancing a gps with a terrain model WO2002041027A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2002542897A JP2004514144A (en) 2000-11-17 2001-11-13 Method and apparatus for improving a global positioning system using a terrain model
EP01990915A EP1342329B1 (en) 2000-11-17 2001-11-13 Method and apparatus for enhancing a global positioning positioning system with a terrain model
KR1020037006694A KR100800628B1 (en) 2000-11-17 2001-11-13 Enhancing a gps with a terrain model
AT01990915T ATE510365T1 (en) 2000-11-17 2001-11-13 METHOD AND DEVICE FOR IMPROVING A GLOBAL NAVIGATION SYSTEM WITH A TERRAIN MODEL

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US24960400P 2000-11-17 2000-11-17
US60/249,604 2000-11-17
US09/811,796 US6429814B1 (en) 2000-11-17 2001-03-19 Method and apparatus for enhancing a global positioning system with terrain model
US09/811,796 2001-03-19

Publications (3)

Publication Number Publication Date
WO2002041027A2 WO2002041027A2 (en) 2002-05-23
WO2002041027A9 WO2002041027A9 (en) 2002-07-18
WO2002041027A3 true WO2002041027A3 (en) 2002-11-07

Family

ID=26940208

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/047162 WO2002041027A2 (en) 2000-11-17 2001-11-13 Enhancing a gps with a terrain model

Country Status (6)

Country Link
US (2) US6429814B1 (en)
EP (1) EP1342329B1 (en)
JP (1) JP2004514144A (en)
KR (1) KR100800628B1 (en)
AT (1) ATE510365T1 (en)
WO (1) WO2002041027A2 (en)

Families Citing this family (98)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7711038B1 (en) 1998-09-01 2010-05-04 Sirf Technology, Inc. System and method for despreading in a spread spectrum matched filter
US7545854B1 (en) 1998-09-01 2009-06-09 Sirf Technology, Inc. Doppler corrected spread spectrum matched filter
US7043363B2 (en) * 2002-10-10 2006-05-09 Sirf Technology, Inc. Host based satellite positioning systems
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
US7970411B2 (en) 2000-05-18 2011-06-28 Sirf Technology, Inc. Aided location communication system
US7929928B2 (en) 2000-05-18 2011-04-19 Sirf Technology Inc. Frequency phase correction system
US7813875B2 (en) * 2002-10-10 2010-10-12 Sirf Technology, Inc. Layered host based satellite positioning solutions
US7546395B2 (en) * 2002-10-10 2009-06-09 Sirf Technology, Inc. Navagation processing between a tracker hardware device and a computer host based on a satellite positioning solution system
US6778136B2 (en) 2001-12-13 2004-08-17 Sirf Technology, Inc. Fast acquisition of GPS signal
US6389291B1 (en) * 2000-08-14 2002-05-14 Sirf Technology Multi-mode global positioning system for use with wireless networks
US8116976B2 (en) 2000-05-18 2012-02-14 Csr Technology Inc. Satellite based positioning method and system for coarse location positioning
US6856794B1 (en) * 2000-07-27 2005-02-15 Sirf Technology, Inc. Monolithic GPS RF front end integrated circuit
US6961019B1 (en) * 2000-08-10 2005-11-01 Sirf Technology, Inc. Method and apparatus for reducing GPS receiver jamming during transmission in a wireless receiver
US7545850B1 (en) 2000-08-24 2009-06-09 Sirf Technology, Inc. Analog compression of GPS C/A signal to audio bandwidth
US7197305B2 (en) 2000-08-24 2007-03-27 Sirf Technology, Inc. Apparatus for reducing auto-correlation or cross-correlation in weak CDMA signals
US6665612B1 (en) * 2000-08-29 2003-12-16 Sirf Technology, Inc. Navigation processing for a satellite positioning system receiver
US7463893B1 (en) 2000-09-22 2008-12-09 Sirf Technology, Inc. Method and apparatus for implementing a GPS receiver on a single integrated circuit
US6429814B1 (en) * 2000-11-17 2002-08-06 Global Locate, Inc. Method and apparatus for enhancing a global positioning system with terrain model
US7671489B1 (en) 2001-01-26 2010-03-02 Sirf Technology, Inc. Method and apparatus for selectively maintaining circuit power when higher voltages are present
US6703971B2 (en) * 2001-02-21 2004-03-09 Sirf Technologies, Inc. Mode determination for mobile GPS terminals
US8244271B2 (en) * 2001-05-21 2012-08-14 Csr Technology Inc. Distributed data collection of satellite data
US7668554B2 (en) 2001-05-21 2010-02-23 Sirf Technology, Inc. Network system for aided GPS broadcast positioning
US20080129588A1 (en) 2001-06-06 2008-06-05 David Albert Lundgren Method and apparatus for determining location information of a mobile device
US8212719B2 (en) 2001-06-06 2012-07-03 Global Locate, Inc. Method and apparatus for background decoding of a satellite navigation message to maintain integrity of long term orbit information in a remote receiver
US20080186229A1 (en) 2001-06-06 2008-08-07 Van Diggelen Frank Method and Apparatus for Monitoring Satellite-Constellation Configuration To Maintain Integrity of Long-Term-Orbit Information In A Remote Receiver
US20080125971A1 (en) 2001-06-06 2008-05-29 Van Diggelen Frank Method and apparatus for improving accuracy and/or integrity of long-term-orbit information for a global-navigation-satellite system
US6756938B2 (en) * 2001-11-06 2004-06-29 Motorola, Inc. Satellite positioning system receivers and methods therefor
US20030125045A1 (en) * 2001-12-27 2003-07-03 Riley Wyatt Thomas Creating and using base station almanac information in a wireless communication system having a position location capability
US7545319B2 (en) * 2002-06-20 2009-06-09 Sirf Technology, Inc. Configurable satellite positioning system receivers with programmable inputs
US6738013B2 (en) * 2002-06-20 2004-05-18 Sirf Technology, Inc. Generic satellite positioning system receivers with selective inputs and outputs
JP4255441B2 (en) 2002-08-15 2009-04-15 サーフ テクノロジー インコーポレイテッド GPS system interface
US7194389B2 (en) * 2003-03-25 2007-03-20 The United States Of America As Represented By The Secretary Of The Army Fusion of data from differing mathematical models
US7123928B2 (en) * 2003-07-21 2006-10-17 Qualcomm Incorporated Method and apparatus for creating and using a base station almanac for position determination
US20050027450A1 (en) * 2003-08-01 2005-02-03 Cox Geoffrey F. Altitude aiding in a satellite positioning system
US7822105B2 (en) 2003-09-02 2010-10-26 Sirf Technology, Inc. Cross-correlation removal of carrier wave jamming signals
WO2005047923A2 (en) 2003-09-02 2005-05-26 Sirf Technology, Inc. Signal processing system for satellite positioning signals
US7365680B2 (en) * 2004-02-10 2008-04-29 Sirf Technology, Inc. Location services system that reduces auto-correlation or cross-correlation in weak signals
US20050251332A1 (en) * 2004-03-22 2005-11-10 Daimlerchrysler Ag Method for correlating altitude and/or grade information with route points of a digital map
BRPI0418696A (en) * 2004-04-02 2007-06-12 Qualcomm Inc methods and equipment for signaling assisted position determination systems
PL2026085T3 (en) * 2004-10-21 2012-08-31 Nokia Technologies Oy Providing carrier-phase measurements upon request for satellite based positioning
JP2006125867A (en) * 2004-10-26 2006-05-18 Seiko Epson Corp Positioning system, terminal device, information providing device, and control method and control program for terminal device
JP4036217B2 (en) * 2004-10-27 2008-01-23 セイコーエプソン株式会社 Positioning system, terminal device, positioning device and program
JP2006177783A (en) * 2004-12-22 2006-07-06 Seiko Epson Corp Positioning device, control method of positioning device, control program of positioning device, and recording medium readable by computer for recording control program of positioning device
US7664187B2 (en) * 2005-04-25 2010-02-16 Sirf Technology, Inc. Memory reduction in digital broadcast receivers
US7555661B2 (en) * 2005-05-03 2009-06-30 Sirf Technology, Inc. Power management in digital receivers that adjusts at least one a of clock rate and a bit width based on received signal
US7813454B2 (en) * 2005-09-07 2010-10-12 Sirf Technology, Inc. Apparatus and method for tracking symbol timing of OFDM modulation in a multi-path channel
WO2007084259A2 (en) * 2005-12-16 2007-07-26 Sirf Technology, Inc. Multi-standard multi-rate filter
US8111791B2 (en) * 2005-12-20 2012-02-07 Sirf Technology, Inc. Differential evolution design of polyphase IIR decimation filters
US7671672B2 (en) * 2005-12-22 2010-03-02 Sirf Technology, Inc. Baseband noise reduction
US7466778B2 (en) * 2005-12-22 2008-12-16 Sirf Technology, Inc. Memory efficient OFDM channel estimation and frequency domain diversity processing
US7889780B2 (en) * 2006-01-04 2011-02-15 Sirf Technology, Inc. Method of estimating doppler spread and signal-to-noise ratio of a received signal
US7459970B2 (en) * 2006-01-11 2008-12-02 Sirf Technology, Inc. Method and apparatus for optimizing power dissipation in a low noise amplifier
US7451378B2 (en) * 2006-01-16 2008-11-11 Sirf Technology, Inc. Method and apparatus for memory optimization in MPE-FEC system
US7644343B2 (en) * 2006-01-17 2010-01-05 Rajugopal Gubbi Error resilience methods for multi-protocol encapsulation forward error correction implementations
US7739032B2 (en) * 2006-03-21 2010-06-15 Broadcom Corporation Method and apparatus for generating and using a regional-terrain model
US8121238B2 (en) * 2006-06-30 2012-02-21 Csr Technology Inc. System and method for synchronizing digital bits in a data stream
EP2041596A2 (en) * 2006-06-30 2009-04-01 Sirf Technology, Inc. Enhanced aiding in gps systems
JP4270244B2 (en) * 2006-08-25 2009-05-27 セイコーエプソン株式会社 POSITIONING DEVICE, POSITIONING DEVICE CONTROL METHOD, AND PROGRAM
JP2008139247A (en) * 2006-12-05 2008-06-19 Alpine Electronics Inc Gps positioning device
US7466209B2 (en) * 2007-01-05 2008-12-16 Sirf Technology, Inc. System and method for providing temperature correction in a crystal oscillator
US7979207B2 (en) * 2007-03-19 2011-07-12 Sirf Technology, Inc. Systems and methods for detecting a vehicle static condition
US7724612B2 (en) * 2007-04-20 2010-05-25 Sirf Technology, Inc. System and method for providing aiding information to a satellite positioning system receiver over short-range wireless connections
KR100793393B1 (en) * 2007-09-13 2008-01-11 (유)대산이앤씨 Gps system
US7995683B2 (en) * 2007-10-24 2011-08-09 Sirf Technology Inc. Noise floor independent delay-locked loop discriminator
US8571506B2 (en) * 2007-10-29 2013-10-29 Csr Technology Inc. Systems and methods for sharing an oscillator between receivers
US8159393B2 (en) * 2007-11-05 2012-04-17 Csr Technology Inc. Systems and methods for synthesizing GPS measurements to improve GPS location availability
US8190365B2 (en) * 2007-11-05 2012-05-29 Csr Technology Inc. Systems and methods for processing navigational solutions
US20090115656A1 (en) * 2007-11-06 2009-05-07 Sirf Technology, Inc. Systems and Methods for Global Differential Positioning
US7821454B2 (en) * 2007-11-20 2010-10-26 Sirf Technology, Inc. Systems and methods for detecting GPS measurement errors
US7642957B2 (en) * 2007-11-27 2010-01-05 Sirf Technology, Inc. GPS system utilizing multiple antennas
US8144053B2 (en) * 2008-02-04 2012-03-27 Csr Technology Inc. System and method for verifying consistent measurements in performing GPS positioning
US8700322B2 (en) * 2008-02-20 2014-04-15 Qualcomm Incorporated Efficient use of expected user altitude data to aid in determining a position of a mobile station
US20110205115A1 (en) * 2008-02-25 2011-08-25 Sirf Technology, Inc. Always on GPS Device
US8699984B2 (en) 2008-02-25 2014-04-15 Csr Technology Inc. Adaptive noise figure control in a radio receiver
US7616064B2 (en) * 2008-02-28 2009-11-10 Noshir Dubash Digital synthesizer for low power location receivers
US8670882B2 (en) * 2008-04-03 2014-03-11 Csr Technology Inc. Systems and methods for monitoring navigation state errors
US8478305B2 (en) * 2008-04-09 2013-07-02 Csr Technology Inc. System and method for integrating location information into an internet phone system
US8073414B2 (en) 2008-06-27 2011-12-06 Sirf Technology Inc. Auto-tuning system for an on-chip RF filter
US8072376B2 (en) * 2008-06-27 2011-12-06 Sirf Technology Inc. Method and apparatus for mitigating the effects of cross correlation in a GPS receiver
US8478228B2 (en) * 2008-10-20 2013-07-02 Qualcomm Incorporated Mobile receiver with location services capability
US8242841B2 (en) * 2008-12-05 2012-08-14 Csr Technology Inc. Receiver having multi-stage low noise amplifier
US8600297B2 (en) * 2009-07-28 2013-12-03 Qualcomm Incorporated Method and system for femto cell self-timing and self-locating
US20110106447A1 (en) * 2009-11-03 2011-05-05 Honeywell International Inc. System for providing a pilot of an aircraft with a visual depiction of a terrain
US20110115671A1 (en) * 2009-11-17 2011-05-19 Qualcomm Incorporated Determination of elevation of mobile station
US20110199257A1 (en) * 2010-02-18 2011-08-18 David Lundgren Method and system for updating altitude information for a location by using terrain model information to prime altitude sensors
US9031572B2 (en) * 2010-12-22 2015-05-12 Qualcomm Incorporated Method and apparatus for estimating satellite positioning reliability
US20120313820A1 (en) * 2011-06-07 2012-12-13 Raytheon Company System technique for conical geo-location of radio frequency sources
US8736487B2 (en) 2011-09-21 2014-05-27 Csr Technology Inc. Method and apparatus of using height aiding from a contour table for GNSS positioning
CN103033822B (en) * 2011-09-30 2014-09-24 迈实电子(上海)有限公司 Mobile information confirmation device and mobile information confirmation method and receiving set
US9702963B2 (en) * 2012-05-30 2017-07-11 Nokia Technologies Oy Method, apparatus, and computer program product for high accuracy location determination
US9408175B2 (en) 2014-05-02 2016-08-02 Apple Inc. Positioning accuracy using 3D building models
JP2016011919A (en) * 2014-06-30 2016-01-21 カシオ計算機株式会社 Positioning device, positioning method, and program
US10078138B2 (en) 2015-09-08 2018-09-18 Apple Inc. Doppler shift correction using three-dimensional building models
CN109564292B (en) 2016-12-01 2023-09-22 谷歌有限责任公司 Method and system for position determination
US10802157B2 (en) 2017-09-28 2020-10-13 Apple Inc. Three-dimensional city models and shadow mapping to improve altitude fixes in urban environments
US11487025B1 (en) * 2019-03-29 2022-11-01 United Services Automobile Association (Usaa) Method for inferring GPS location
DE102019135225B4 (en) 2019-12-19 2023-07-20 Wirtgen Gmbh Method for milling off traffic areas with a milling drum, and milling machine for carrying out the method for milling off traffic areas

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4949268A (en) * 1987-09-22 1990-08-14 Kabushiki Kaisha Toyota Chuo Kenkyusho Land vehicle navigation system
US6047227A (en) * 1996-11-19 2000-04-04 Caterpillar Inc. Method and apparatus for operating geography altering machinery relative to a work site
US6094607A (en) * 1998-11-27 2000-07-25 Litton Systems Inc. 3D AIME™ aircraft navigation

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4954837A (en) * 1989-07-20 1990-09-04 Harris Corporation Terrain aided passive range estimation
US5087919A (en) * 1989-09-05 1992-02-11 Pioneer Electronic Corporation On-board navigation apparatus
US5596500A (en) * 1993-10-25 1997-01-21 Trimble Navigation Limited Map reading system for indicating a user's position on a published map with a global position system receiver and a database
US5995903A (en) * 1996-11-12 1999-11-30 Smith; Eric L. Method and system for assisting navigation using rendered terrain imagery
US6061018A (en) 1998-05-05 2000-05-09 Snaptrack, Inc. Method and system for using altitude information in a satellite positioning system
US6252543B1 (en) * 1998-05-28 2001-06-26 Ericsson Inc. Location system combining ranging measurements from GPS and cellular networks
US6157891A (en) * 1998-11-16 2000-12-05 Lin; Ching-Fang Positioning and ground proximity warning method and system thereof for vehicle
US6259403B1 (en) * 1999-08-09 2001-07-10 Trimble Navigation Limited GPS positioning utilizing laser based reflectors augmentation
US6429814B1 (en) * 2000-11-17 2002-08-06 Global Locate, Inc. Method and apparatus for enhancing a global positioning system with terrain model

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4949268A (en) * 1987-09-22 1990-08-14 Kabushiki Kaisha Toyota Chuo Kenkyusho Land vehicle navigation system
US6047227A (en) * 1996-11-19 2000-04-04 Caterpillar Inc. Method and apparatus for operating geography altering machinery relative to a work site
US6094607A (en) * 1998-11-27 2000-07-25 Litton Systems Inc. 3D AIME™ aircraft navigation

Also Published As

Publication number Publication date
ATE510365T1 (en) 2011-06-15
US20020089446A1 (en) 2002-07-11
KR100800628B1 (en) 2008-02-05
US6429814B1 (en) 2002-08-06
WO2002041027A2 (en) 2002-05-23
US6590530B2 (en) 2003-07-08
EP1342329A2 (en) 2003-09-10
KR20030060938A (en) 2003-07-16
JP2004514144A (en) 2004-05-13
EP1342329B1 (en) 2011-05-18
EP1342329A4 (en) 2004-11-03
WO2002041027A9 (en) 2002-07-18

Similar Documents

Publication Publication Date Title
WO2002041027A3 (en) Enhancing a gps with a terrain model
CA2250196A1 (en) Gps/irs global position determination method and apparatus with integrity loss provisions
AU5191990A (en) Contour measurement using time-based triangulation methods
CA2284533A1 (en) Intrabody measurement
WO2002059634A3 (en) Apparatus for processing of gps signals
CA2388212A1 (en) System for determining the position of an agricultural vehicle
WO2003034088A3 (en) Measuring distance between two objects using received satellite transmitted data
WO2002056052A3 (en) Method and apparatus for estimating velocity of a terminal in a wireless communication system
DE59814196D1 (en) Fiducial matching mittels fiducial-schraube
AU2001281355A1 (en) Method and system for high precision altitude measurement over hostile terrain
WO2002061450A3 (en) Method and apparatus for determining location using a coarse position estimate
GB9116529D0 (en) Golf course ranging and direction-finding system using spread-spectrum radiolocation techniques
IL111042A0 (en) Sar/gps inertial method of range measurement
EP0342481A3 (en) Indicator for the recovery of skiers buried by an avalanche
EP0679901A3 (en) Position estimation using satellite range rate measurements
AU6709200A (en) A method of seismic surveying, a marine vibrator arrangement, and a method of calculating the depths of seismic sources
HK1050050A1 (en) Method for improving the sensitivity of gps receiver
ATE345487T1 (en) NAVIGATION SYSTEM AND METHOD FOR TRACKING THE POSITION OF AN OBJECT
DE3669558D1 (en) METHOD FOR DETERMINING THE AZIMUTH ANGLE OF A DRILL HOLE.
EP1421339B8 (en) Inductive position detector
CA2337829A1 (en) Gps satellite drift monitor
GB0115705D0 (en) Method of correcting disturbing influences on the MR signals of a substance disposed in the measuring volume of an MR apparatus
ATE382873T1 (en) METHOD FOR COMPUTING THE IMMEDIATE CHARACTERISTICS OF A SATELLITE EQUIPPED WITH A GNSS RECEIVER IN AN ORBIT
GB2397804A (en) Amphibious vehicle
WO1998049577A3 (en) Methods for gyro bias estimation using gps

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): JP KR

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

AK Designated states

Kind code of ref document: C2

Designated state(s): JP KR

AL Designated countries for regional patents

Kind code of ref document: C2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

COP Corrected version of pamphlet

Free format text: PAGES 1/8-8/8, DRAWINGS, REPLACED BY NEW PAGES 1/8-8/8; DUE TO LATE TRANSMITTAL BY THE RECEIVING OFFICE

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

Designated state(s): JP KR

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2002542897

Country of ref document: JP

WWE Wipo information: entry into national phase

Ref document number: 1020037006694

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 2001990915

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1020037006694

Country of ref document: KR

WWP Wipo information: published in national office

Ref document number: 2001990915

Country of ref document: EP