[go: up one dir, main page]

WO1999049331A1 - Systeme de localisation mobile - Google Patents

Systeme de localisation mobile Download PDF

Info

Publication number
WO1999049331A1
WO1999049331A1 PCT/IB1999/000713 IB9900713W WO9949331A1 WO 1999049331 A1 WO1999049331 A1 WO 1999049331A1 IB 9900713 W IB9900713 W IB 9900713W WO 9949331 A1 WO9949331 A1 WO 9949331A1
Authority
WO
WIPO (PCT)
Prior art keywords
search device
locating system
exchange
responder
mobile locating
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/IB1999/000713
Other languages
English (en)
Dutch (nl)
Inventor
Django Blok
Jannes Aasman
Maurice Matthias Feijen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke KPN NV
Original Assignee
Koninklijke KPN NV
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 Koninklijke KPN NV filed Critical Koninklijke KPN NV
Priority to AU30502/99A priority Critical patent/AU3050299A/en
Publication of WO1999049331A1 publication Critical patent/WO1999049331A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • G01S19/14—Receivers specially adapted for specific applications
    • G01S19/16—Anti-theft; Abduction
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
    • G01S13/878—Combination of several spaced transmitters or receivers of known location for determining the position of a transponder or a reflector
    • 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
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39—Determining 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
    • G01S19/42—Determining position
    • 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
    • G01S2205/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S2205/001—Transmission of position information to remote stations
    • G01S2205/008—Transmission of position information to remote stations using a mobile telephone network

Definitions

  • the invention relates to a mobile locating system particularly suitable for locating children.
  • Locating systems are known in various embodiments.
  • an object-locating system for locating objects such as, e.g., a vehicle.
  • GSM Global System for Mobile communications
  • a child however, often does not know when it is being looked for by its parents, so that the parents will often try in vain to locate the child.
  • Another drawback is the need of a central emergency station. In such a system, the parents who want to locate a child should first contact the emergency station and are not capable of directly verifying themselves where the child is.
  • a mobile locating system of the type described above is characterised by at least one mobile search device, at least one mobile responder device, a communication network which at least enables communication from the search device to the responder device for activating the responder device from the search device , and a positioning system for generating positional signals relating to the position of the responder device and transmitting the positional signals to an exchange of the communication network provided with a geographic information system, which is arranged for transmitting to the search device the positional information obtained from the positional signals by way of the communication network.
  • FIG. 1 schematically shows a first exemplary embodiment of a mobile locating system according to the invention
  • FIG. 2 schematically shows a second exemplary embodiment of a mobile locating system according to the invention
  • figures 3 to 5 inclusive schematically show, in the form of block diagrams, several exemplary embodiments of a locating system according to the invention
  • FIG. 6 schematically shows an example of a mobile search system for use in a locating system according to the invention.
  • FIG. 1 shows a first exemplary embodiment of a locating system according to the invention.
  • the locating system was originally designed for, and is also described below with respect to, locating lost children or, e.g., locating children who, although they were not lost, are still located outside the field of vision of the parents or supervisors or the like, the locating system may also be applicable in other situations. There may be thought of, e.g., application to persons having health problems, or the mentally disabled, but also of application for specific pets.
  • the locating system shown in FIG. 1 comprises at least one search device 1 for a parent or supervisor 2, at least one responder device 3 for a child 4, a communication network 5 and a positioning system 6.
  • a parent 2 desires to know where the child 4 is, the parent activates the mobile search system 1.
  • LCD Liquid-crystal Display
  • the search device is arranged to transmit, after activation, a search signal which is picked up by any of the receiver antennae 7 of the communication network 5, and is broadcast by way of an exchange 8 of the communication network 5 and a transmitter antenna 9 connected thereto, as schematically indicated by arrows 10, 11.
  • the search signal should contain a predetermined code which may be recognised by the responder device of the sought child, so that only said responder device reacts to the search signal.
  • the network 5 may also contain fixed lines which may extend between, e.g., the exchange and the antennae, or between the exchange and possible sub-exchanges .
  • the communication network may be an existing network for mobile telephony such as, e.g., the GSM network.
  • the responder device 3 is arranged to react to the search signal of the associated search device 1. After receiving a correctly encoded search signal, the responder device activates a receiver for positional signals built into the responder device.
  • GPS Global Positioning System
  • the responder device transmits to the exchange 8 the positional signals received by way of an antenna 7 of the communication network, as schematically indicated by arrows 14, 15.
  • the exchange 8 is provided with a geographic information system 16 which determines the location of the responder device from the positional signals 16. Said location is then transmitted back, by way of the exchange 8 and the antenna 9, to the search device 1, as schematically shown by an arrow 17.
  • the search device may be arranged to receive and process positional signals, so that in the search device it may be determined, from the difference between the position of the parent and the position of the child, in which direction and at which distance from the search device the sought child is .
  • the latter may be determined in the exchange, which is then capable of transmitting the information in question to the search device .
  • an earthbound navigational network having a number of radio beacons .
  • the radius of such a network is geographically limited to a specific area, e.g., an amusement park, or a nature reserve or the Dutch territory.
  • Such an earthbound navigational network may be more accurate than the GPS system.
  • GIS Geographic Information System
  • the use of the GSM network or a similar public wireless telephony system is obvious if the search signal is transmitted by way of the GSM network or a similar network as well.
  • FIG. 2 schematically shows a second exemplary embodiment of a locating system according to the invention.
  • FIG. 2 comprises a kind of "pager" network for two-way communication, it being possible to advantageously make partial use of the existing semaphone network, of which an exchange 20 and an antenna 21 are schematically shown.
  • the exchange is provided with a GIS system 22.
  • a second network whose antennae 23 are shown.
  • the shown locating system operates as follows.
  • the parent 1 operates the search device 2 to track a child 4 wearing a responder device 3.
  • the search device then broadcasts a signal 19 which is picked up by one of the antennae 23.
  • Said signals are transmitted to the exchange by way of the second network, as schematically indicated by an arrow 25.
  • said signals are broadcast by the semaphone network and picked up by the responder device 3 , as schematically shown by an arrow 24.
  • the responder device is activated by said signals to broadcast a reply signal which is picked up at various points by antennae 23, as symbolised by arrows 26.
  • the antennae 23 transmit said received signals to the exchange by way of connections 27.
  • the GIS system of the exchange calculates the position of the child, and the positional information obtained in this manner is once again transmitted to the search device by way of the semaphone network, as indicated by an arrow 28.
  • the signal transmitted by the responder device may at the same time serve both for positioning and for possible communication.
  • FIG. 3, 4 and 5 schematically show, in the form of block diagrams, three examples of locating systems according to the invention, set up using the GSM network and an earthbound navigational system (FIG. 3), a mobile data network having a GPS system (FIG. 4) and a semaphone network supplemented by a network to be newly installed having earthbound antennae for positioning (FIG. 5).
  • the system shown in FIG. 3 comprises a position detection system 29 having radio beacons 30, synchronised by a clock 31.
  • the radio beacons may be received both by the search device 1 and by the responder device 3 using receiver sections 32 and 33, respectively.
  • the search device has controls such as buttons 34 and a display screen 35, an energy source such as a battery 36, a GSM transmitter section 37, memory means 38 and 39, a GSM receiver section 40 and a mathematical processor 41 which drives the display screen by way of the memory 39. Furthermore, in this example there is still provided a compass device 42.
  • the responder device 3 is set up more simply and has a supply source 44, a GSM receiver section 45, a GSM transmitter section 46, a mathematical processor 47 and memory means 48.
  • the exchange 8 receives signals from the GSM transmitter section 37 of the search device 1 and from the GSM transmitter section 46 of the responder device 3. Furthermore, the exchange in operation passes on the signals received.
  • the exchange comprises a code data base 49, in which the various address codes of at least the responder devices are stored.
  • the exchange comprises a GIS system 50.
  • FIG. 4 schematically shows, in the form of a block diagram, a locating system according to the invention which is constructed using a mobile data network and which makes use of the GPS system.
  • GPS satellites 51 which communicate with a GPS receiver 52 in the search device and with a GPS receiver 53 in the responder device.
  • radio transmitter sections 54 and 55 and radio modems 56 and 57 available in the search device and the responder device.
  • FIG. 5 schematically shows, in the form of a block diagram, an example of a locating system according to the invention which makes use of a semaphone network and a new network 60 having radio receivers 61 and a network exchange 62 which is, or is not, wirelessly coupled to, or is part of, the exchange 20 of FIG. 2.
  • the radio receivers 61 are coupled to the antennae 23 of FIG. 2.
  • the exchange 20 now contains, in addition to a code data base 49 and a GIS information system 50, yet another network data base 63 for positioning based on signals received from the radio receivers 61 by way of the network exchange 62.
  • the search device 1 and the responder device 3 now each comprise a transmitter section 64, 65 for broadcasting signals to the receivers 61 of the network 60.
  • both devices each comprise a semaphone receiver section 66, 67 for receiving signals which are transmitted by the exchange 20 by way of the semaphone network.
  • FIG. 6 schematically shows an example of a practical embodiment of a search device 1 for a locating system according to the invention.
  • the device shown has a hand-holdable handle part 70 and a display part 71 provided with a display screen 72, e.g., an LCD screen.
  • the display screen is preferably illuminated, so that it is capable of being read in the dark as well.
  • buttons serve to switch the device on/off, to select the child to be sought in the event that more children are provided with a responder device.
  • the screen is arranged to show the required information alphanumerically and graphically. This may be, e.g., a street name in combination with a number indicating the distance to the responder device and possibly a directional arrow. It is also basically possible to indicate the route to be followed, e.g., first road to the left, second road to the right, or to display a plan onscreen on which the positions of the search device and the responder device are displayed.
  • the batteries may be accomodated as indicated with dotted lines at 76, and possibly a part of the required electronic circuitry.
  • the responder device preferably has a shape attractive to the child and is provided with attachment means facilitating a good 7 fixation, e.g., to the wrist or arm of the child, or around the middle or to the clothing.
  • the responder device preferably has an on/off switch which is placed in such a position that for the child it is difficult to reach.
  • the button may be located, e.g., on the surface of the device resting against the body or the clothing of the child when in use.
  • the device should of course be as resistant as possible to all sorts of environmental influences, shocks and impacts, water etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un système de localisation mobile, convenant particulièrement à la localisation d'enfants, comprenant un dispositif de recherche mobile, au moins un dispositif répondeur mobile, un réseau de communication permettant au moins la communication entre le dispositif de recherche et le dispositif répondeur pour l'activation de ce dernier par le dispositif de recherche et un système de positionnement pour la génération de signaux de position relatifs à la position du dispositif répondeur et pour envoyer les signaux de position à un central, doté d'un système d'information géographique, du réseau de communication. Ledit réseau est conçu pour transmettre l'information de position obtenue à partir des signaux de position au dispositif de recherche.
PCT/IB1999/000713 1998-03-20 1999-03-18 Systeme de localisation mobile Ceased WO1999049331A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU30502/99A AU3050299A (en) 1998-03-20 1999-03-18 Mobile locating system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1008662A NL1008662C2 (nl) 1998-03-20 1998-03-20 Mobiel Localisatiesysteem.
NL1008662 1998-03-20

Publications (1)

Publication Number Publication Date
WO1999049331A1 true WO1999049331A1 (fr) 1999-09-30

Family

ID=19766786

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1999/000713 Ceased WO1999049331A1 (fr) 1998-03-20 1999-03-18 Systeme de localisation mobile

Country Status (3)

Country Link
AU (1) AU3050299A (fr)
NL (1) NL1008662C2 (fr)
WO (1) WO1999049331A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2348080A (en) * 1999-01-19 2000-09-20 Dominic Conrad Lakin Child position monitoring
WO2001073468A3 (fr) * 2000-03-24 2002-01-31 Locate Networks Inc Systeme de detection d'emplacement
WO2001063315A3 (fr) * 2000-02-23 2002-02-21 Ldt Systems Inc Systeme de telelocalisation de position a distance
WO2004057369A1 (fr) * 2002-12-19 2004-07-08 Koninklijke Philips Electronics N.V. Systeme de positionnement d'objet, appareil de positionnement d'objet et procede de positionnement d'objet
GB2398687A (en) * 2003-01-29 2004-08-25 Skyguardian Ltd People tracking
US7110777B2 (en) 2002-11-06 2006-09-19 Charles Duncan Apparatus and method for tracking the location and position of an individual using an accelerometer
CN1313834C (zh) * 2002-04-28 2007-05-02 光宝科技股份有限公司 搜寻告知系统
WO2008006543A1 (fr) * 2006-07-10 2008-01-17 Veris S.R.L. Dispositif permettant de détecter le mouvement des individus, animaux ou objets via un système gps
EP1884794A3 (fr) * 2006-08-02 2008-02-27 Navigon AG Dispositif et procédé destinés au calcul de la position géographique d'une personne
EP1186904B1 (fr) * 2000-09-11 2008-03-12 T-Mobile Deutschland GmbH Procédé de recherche et de localisation de personnes
WO2008097800A1 (fr) * 2007-02-06 2008-08-14 Qualcomm Incorporated Appareil et procédés pour localiser, suivre et/ou récupérer un dispositif de communication sans fil.
GB2448743A (en) * 2007-04-26 2008-10-29 Eads Defence And Security Systems Ltd Bi-directional communication in an asset tracking system
EP2055030A4 (fr) * 2006-07-21 2011-10-05 Pocketfinder Llc Appareil et procede pour localiser des individus et des objets utilisant des dispositifs de suivi
EP2548040A4 (fr) * 2010-03-19 2013-12-25 Seek And Find As Procédé, système et appareil de localisation de dispositif à chercher et trouver

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5025261A (en) * 1989-01-18 1991-06-18 Sharp Kabushiki Kaisha Mobile object navigation system
US5461365A (en) * 1994-10-27 1995-10-24 Schlager; Dan Multi-hazard alarm system using selectable power-level transmission and localization
WO1996012264A2 (fr) * 1994-10-13 1996-04-25 Philips Electronics N.V. Systeme radiophonique de localisation d'objets, station centrale et appareil d'alarme radiophonique
WO1997014054A1 (fr) * 1995-10-09 1997-04-17 Snaptrack, Inc. Dispositif de localisation distant base sur une liaison client-serveur
WO1997014048A2 (fr) * 1995-10-13 1997-04-17 American Technology Corp. Systeme gps de detection de la position relative
US5650770A (en) * 1994-10-27 1997-07-22 Schlager; Dan Self-locating remote monitoring systems
GB2316580A (en) * 1996-08-13 1998-02-25 Ibm Estimating the location of a mobile unit for emergency call assistance
GB2322248A (en) * 1997-02-06 1998-08-19 Fujitsu Ltd Position determination, processing and display

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5025261A (en) * 1989-01-18 1991-06-18 Sharp Kabushiki Kaisha Mobile object navigation system
WO1996012264A2 (fr) * 1994-10-13 1996-04-25 Philips Electronics N.V. Systeme radiophonique de localisation d'objets, station centrale et appareil d'alarme radiophonique
US5461365A (en) * 1994-10-27 1995-10-24 Schlager; Dan Multi-hazard alarm system using selectable power-level transmission and localization
US5650770A (en) * 1994-10-27 1997-07-22 Schlager; Dan Self-locating remote monitoring systems
WO1997014054A1 (fr) * 1995-10-09 1997-04-17 Snaptrack, Inc. Dispositif de localisation distant base sur une liaison client-serveur
WO1997014048A2 (fr) * 1995-10-13 1997-04-17 American Technology Corp. Systeme gps de detection de la position relative
GB2316580A (en) * 1996-08-13 1998-02-25 Ibm Estimating the location of a mobile unit for emergency call assistance
GB2322248A (en) * 1997-02-06 1998-08-19 Fujitsu Ltd Position determination, processing and display

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2348080A (en) * 1999-01-19 2000-09-20 Dominic Conrad Lakin Child position monitoring
WO2001063315A3 (fr) * 2000-02-23 2002-02-21 Ldt Systems Inc Systeme de telelocalisation de position a distance
WO2001073468A3 (fr) * 2000-03-24 2002-01-31 Locate Networks Inc Systeme de detection d'emplacement
EP1186904B1 (fr) * 2000-09-11 2008-03-12 T-Mobile Deutschland GmbH Procédé de recherche et de localisation de personnes
CN1313834C (zh) * 2002-04-28 2007-05-02 光宝科技股份有限公司 搜寻告知系统
US7110777B2 (en) 2002-11-06 2006-09-19 Charles Duncan Apparatus and method for tracking the location and position of an individual using an accelerometer
WO2004057369A1 (fr) * 2002-12-19 2004-07-08 Koninklijke Philips Electronics N.V. Systeme de positionnement d'objet, appareil de positionnement d'objet et procede de positionnement d'objet
CN100357761C (zh) * 2002-12-19 2007-12-26 皇家飞利浦电子股份有限公司 物体定位系统、物体定位设备和物体定位方法
GB2398687A (en) * 2003-01-29 2004-08-25 Skyguardian Ltd People tracking
WO2008006543A1 (fr) * 2006-07-10 2008-01-17 Veris S.R.L. Dispositif permettant de détecter le mouvement des individus, animaux ou objets via un système gps
EP2055030A4 (fr) * 2006-07-21 2011-10-05 Pocketfinder Llc Appareil et procede pour localiser des individus et des objets utilisant des dispositifs de suivi
EP1884794A3 (fr) * 2006-08-02 2008-02-27 Navigon AG Dispositif et procédé destinés au calcul de la position géographique d'une personne
WO2008097800A1 (fr) * 2007-02-06 2008-08-14 Qualcomm Incorporated Appareil et procédés pour localiser, suivre et/ou récupérer un dispositif de communication sans fil.
US8385883B2 (en) 2007-02-06 2013-02-26 Qualcomm Incorporated Apparatus and methods for locating, tracking and/or recovering a wireless communication device
GB2448743A (en) * 2007-04-26 2008-10-29 Eads Defence And Security Systems Ltd Bi-directional communication in an asset tracking system
EP2548040A4 (fr) * 2010-03-19 2013-12-25 Seek And Find As Procédé, système et appareil de localisation de dispositif à chercher et trouver
US9451407B2 (en) 2010-03-19 2016-09-20 Seek And Find As Seek and find location method, system and apparatus

Also Published As

Publication number Publication date
AU3050299A (en) 1999-10-18
NL1008662C2 (nl) 1999-09-21

Similar Documents

Publication Publication Date Title
US5777580A (en) Vehicle location system
US7764228B2 (en) Portable position determining device
US6518919B1 (en) Mobile object locator
US6172640B1 (en) Pet locator
US5838237A (en) Personal alarm device
US9002372B2 (en) Locating system for autistic child and others
US6898526B2 (en) Method and apparatus for enhanced safety in hunting environments
US20030151506A1 (en) Method and apparatus for locating missing persons
WO1999049331A1 (fr) Systeme de localisation mobile
EP1831850B1 (fr) Systeme de detection d'emplacement pour personnes, animaux et objets
EP1317743A2 (fr) Systeme de notification d'arrivee d'un bus et procedes correspondants
CA2303074A1 (fr) Procede et appareil de surveillance
US6888464B1 (en) Child locating system
KR20000059199A (ko) 위치정보 서비스 시스템
JP2853670B2 (ja) 位置検出システム
EP1221684B1 (fr) Procédé, système et dispositif portable de localisation d'un véhicule
US20050017901A1 (en) Personal locator and security system
JPH10253736A (ja) 移動体位置検出システム及び移動体位置検出装置
GB2247800A (en) Location determining and transmitting arrangement
WO1999034632A1 (fr) Procede et systeme de localisation d'un emetteur de signaux
JP2544282B2 (ja) 電波を用いた移動体の位置確認システム
JPH09184878A (ja) Ｇｐｓ行先探索表示システム
WO2000079703A1 (fr) Dispositif de localisation d'objet mobile
JP2648113B2 (ja) 移動体位置検出方式
KR19990071195A (ko) 원격 위치 추적 및 위치 데이터 송수신장치

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SL SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
NENP Non-entry into the national phase

Ref country code: KR

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase