EP0110945B1 - Systeme de controle de position - Google Patents

Systeme de controle de position Download PDF

Info

Publication number
EP0110945B1
EP0110945B1 EP83901813A EP83901813A EP0110945B1 EP 0110945 B1 EP0110945 B1 EP 0110945B1 EP 83901813 A EP83901813 A EP 83901813A EP 83901813 A EP83901813 A EP 83901813A EP 0110945 B1 EP0110945 B1 EP 0110945B1
Authority
EP
European Patent Office
Prior art keywords
signpost
frequency
base station
transmitter
mobile unit
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.)
Expired
Application number
EP83901813A
Other languages
German (de)
English (en)
Other versions
EP0110945A1 (fr
Inventor
Svend Aggerholm
Oddvar Bothun
Flemming Hansen
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.)
Motorola Solutions Danmark AS
Original Assignee
Storno AS
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 Storno AS filed Critical Storno AS
Publication of EP0110945A1 publication Critical patent/EP0110945A1/fr
Application granted granted Critical
Publication of EP0110945B1 publication Critical patent/EP0110945B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
    • G08G1/127—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams to a central station ; Indicators in a central station

Definitions

  • the invention concerns a system for monitoring the location of a plurality of mobile units operating on routes known in advance from a central control station, said system comprising a stationary base station covering at least one transmission channel including a transmitter for transmitting speech or data communication on a first frequency and a receiver for receiving speech or data communication on a second frequency for selective radio communication with the mobile units, each of said mobile units similarly comprising transmitter means and receiver means for radio communication with said base station, and with "signposts" located in specific positions along the known routes, each of said "signposts” being provided with a short range transmitter for transferring position-indicating information to a storage and processing means provided in each mobile unit, and said control station further comprising a computer sequentially providing interrogating signals to each mobile unit, upon the receipt of which each mobile unit replies to the control station transmitting the stored and processed position information.
  • a system of the above-mentioned type is known in many embodiments and is primarily used for monitoring e.g. the public bus service.
  • the public bus service In order most efficiently to utilize the available rolling equipment and to provide a reasonably good service to the public, it is necessary that e.g. the scheduled arrivals and departures are maintained as close as possible.
  • the maintenance of schedules have justified the establishment and maintenance of a location monitoring system, through which it is possible at any time to get an exact survey of where in the system of routes each individual mobile unit is positioned.
  • the individual units can be diverted and controlled from the base station.
  • a system of the above-mentioned type is useful not only in connection with the public transport of passengers, but has also proved its usefulness in connection with e.g. money transports or patrols of different kinds.
  • Radio communication in the microwave range constitute the most frequently used method owing to its reliability and accuracy, but is very expensive.
  • the apparatus used in the VHF/UHF range is less expensive, but then there is a lot of traffic in the air so that it may be difficult to get the required number of communications channels from the telecommunications authorities.
  • US-A-3,644,883 discloses a traffic monitoring system, in which a sequence of messages is continuously transmitted from a traffic control centre, each containing an address of an individual bus, and information is received from each bus about its position at the time of reply.
  • the interrogation messages are transmitted on one frequency, the interrogation frequency, while the reply messages from the individual busses are transmitted on another frequency, the reply frequency.
  • This part of the communications between the traffic control centre and each individual bus takes place digitally.
  • the known system provides a facility for communicating at voice communications level between the driver and the traffic control centre, which takes place on another channel, the voice communications channel.
  • each individual bus receives position-specific information during the passage of a signpost, which continuously transmits messages containing an identification code specific of the signpost in question.
  • Each signpost comprises a digital position generator, the output signal of which is converted by FSK technique into tones used for modulating a constantly operating transmitter.
  • DE-B-2 143 474 describes a system for monitoring the location of a mobile unit in which the signposts are actuated from the mobile unit itself,.e.g. by an RF-signal from the mobile unit.
  • the transmitter on the mobile unit is activated shortly before passage of the signpost by means of a sensor.
  • the sensitivity of the receiver of the mobile unit is decreased by about 40 db in order not to be disturbed by messages from the control center.
  • the transmitter in the mobile unit transmits the position information towards the control center.
  • the receiver means in each mobile unit comprises only one receiver for receiving all communications from the central base station and from the signpost transmitters as well, and wherein the transmitter frequency of the base station and the transmitter frequency of each individual signpost both are included in the VHF-UHF range.
  • these two frequencies are the same or substantially the same frequency.
  • the communication equipment in each of the many mobile units becomes less expensive, because only one receiver has to be installed in each mobile unit. Further, the same transmitter in the mobile unit is used for transmitting both voice communication and position data, whereby the base station also only needs one receiver. Therefore, the stationary equipment is also simplified and thereby becomes less expensive.
  • substantially the same carrier frequency is used in the signpost transmitters and "in the control centre transmitters.
  • the ratio between the signal level from the signpost transmitters and the signal level from the centre control transmitter is selected in such a way that the signal level on the route of the mobile units right in front of the signpost is sufficiently above the mean level of the signal from the control station to achieve an adequate message acceptance of the signals from the signpost and further in that the antenna on the transmitter of the signpost has a radiation pattern in the relatively narrow main beam directed towards the route of the mobile unit.
  • the mobile unit will be able to accept the position indicating information during the passage of the signpost.
  • the control station signals will have a level allowing them to be received by the mobile unit receiver.
  • the local conditions for receiving in the traffic area of the mobile units impede the use of substantially the same frequency, it may be advantageous to use a lower or higher frequency for the signpost transmitters, preferably in the UHF-band by providing additional circuit means at the input of the ordinary receiver in each mobile unit for frequency conversion from the signal frequency of the signpost to the signal frequency of the base station, whereby the position indicating information transmitted from the signpost to the receiver of the mobile unit can be transferred unaffected by the frequency conversion.
  • only some minor auxiliary circuits are required, and basically the same receiver equipment is still used both for the speech communication and for the position indicating information.
  • the auxiliary circuits comprise a series connection of a band-pass filter for the signpost transmitter frequency, an amplifier a frequency converter or mixer circuit connected to a local oscillator, a band-pass filter for the control station transmitter frequency, and some injunction, said series connection being inserted between the ordinary receiver and the ordinary antenna on said receiver.
  • a stationary base station is generally designated by 10.
  • the base station comprises a central computer 11 containing all relevant information about the mobile units forming part of the system, the routes to be traversed, and the points of time when these units are scheduled to pass specific positions in the system of routes, and a transmitter/receiver part 12 which is in radio contact with a mobile unit 14 via an antenna 13.
  • the base station comprises the usual equipment for such a station for the monitoring of the system of routes, such as control desk with display and printer units and radio telephony equipment for the setting up of voice communications connections with any of the mobile units in the system but such equipment is ordinary and does not concern the invention, and is accordingly not shown in the drawing.
  • each mobile unit 14 follows a known route and passes certain fixed points on the route.
  • a fixed point is marked by a signpost 15, which is in principle a transmitter which, through an antenna 16, constantly emits a signal of a suitable strength and containing information about the position of the signpost in question in the system of routes.
  • a sequence of interrogation messages is emitted from the base station 10, each containing its individual address to a mobile unit 14 which upon reception of an interrogation message transmits its reply message containing the identification code for the unit in question and information about its current position.
  • This communication between the base station 10 and the mobile units 14 takes place through two channels, an interrogation channel of the frequency F1 and a reply channel of the frequency F2 as marked by a double arrow 17.
  • the position of the signpost 15 is transmitted to the mobile unit 14 during the passage thereof, and this information is stored in a known manner in a store until passage of the following signpost in the system.
  • the travelled distance between two signposts is measured continuously e.g. by means of an odometer, and this measured value is applied to the position store likewise in a known manner, so that the position information transmitted with the reply message is correct within a certain margin.
  • all the signposts 15 transmit on the same frequency F1 as the base station 10, which is indicated by a single arrow 18. This involves the advantage that an extra receiver is saved in each mobile unit while minimizing the need for transmission channels. It is not unknown that it is difficult, if not impossible, to find free channels in the VHF/UHF band.
  • Fig. 2 shows the most important units of the invention which are incorporated in the transmitter/receiver equipment of a mobile unit 14.
  • the mobile unit Via an antenna 21 the mobile unit receives a message from the base station 10 or from a signpost 15, and this message is passed on through a bandpass filter 22 of the centre frequency F1 to a receiver 23.
  • the receiver selects the received messages so that only the message from the base station 10 which has the correct address, or a message from a signpost 15 causes a response.
  • This consists in the storage of the position code of a signpost in a control unit 24, which also receives information from an odometer (not shown) about the travelled distance since the last passage of a signpost, or the response is that an accepted interrogation message causes the information on the position which is stored at the given point of time in the control unit 24 to be transmitted to a transmitter 25, which transmits this information together with the identification code of the mobile unit through another bandpass filter 26 of the centre frequency F2.
  • the emission diagram of the signpost antenna 16 must be so narrow that its position is defined with reasonable accuracy, and so narrow with respect to the spacing between the signposts that the probability of non-acceptance of an interrogation message is reasonably low, but not so narrow that the message acceptance is too poor during the passage of a signpost at normal average speed. This calls for a certain minimum spacing between the individual signposts.
  • Fig. 4 shows an emission diagram for a two- element halfwave end-fire antenna suitable as an antenna 16 for a signpost 15.
  • the ordinate of the diagram indicates the mean value of the relative signal level in dB, and its abscissa the relative distance in metres calculated in the direction of motion of a mobile unit forming part of the system.
  • the diagram is relatively symmetrical about the axis of the antenna and exhibits a narrow opening angle.
  • About 10 m at either side of the signpost the signal level has already decreased 6 dB with respect to maximum signal strength in the main direction of the antenna, and just under 50 m to the side the signal strength of the antenna has decreased by a further 20 dB.
  • the message acceptance of a message transmitted from a signpost is about 50%, cf. the curves in Fig. 3, and if a mobile unit passes a signpost at an average speed of 10 m/s, the unit receives about 5 to 10 messages from the signpost, the duration of a message including interval being about 100 ms.
  • the mobile unit receives the position information from the signpost passed and stores it for subsequent transmission to the base station.
  • Fig. 5 the coverage profile of the base station is illustrated.
  • the spacing between the signposts is designated by a, and the trapezoidal curves between them indicate the message acceptance of messages from the base station.
  • the transmitter equipment in each mobile unit can be extended with an own oscillator and frequency converter, so that the mobile unit still uses the same receiver as before. This extension is shown in Fig. 6. With respect to the diagram in Fig.
  • the extension consists in a dividing network 31 for the operating frequency Fb of the signpost, said dividing network 31 passing on the signal from the antenna 21 through an amplifier 32 to a frequency converter 33, which receives a signal from an own oscillator 34 oscillating on the frequency Fb-F1.
  • the signal composed by the converter 33 is passed through a bandpass filter 35 of the centre frequency F1 and now contains the information which was transmitted to the antenna 21 on the operating frequency Fb.
  • the signal is conveyed to the receiver through an addition link 36.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Dans un système de contrôle de position pour contrôler la position de plusieurs unités mobiles fonctionnant sur des itinéraires préétablis à partir d'une station de commande centrale et où chaque unité mobile (14) communique en partie avec une station de base (10), en partie avec des poteaux de signalisation (15, 16) situés à des positions précises le long d'itinéraires connues, desquels les unités mobiles (14) reçoivent pendant leur passage une information se rapportant spécifiquement à la position, les émetteurs (12, 15) à la fois de la station de base (10) et de chaque poteau individuel de signalisation (15, 16) sont disposés pour avoir la même fréquence de fonctionnement (F1). Cela économise un récepteur supplémentaire dans chacune des unités mobiles (14) tout en réduisant au minimum le besoin de canaux de transmission. De plus, l'antenne (16) du poteau de signalisation dispose d'une émission de signaux d'une portée restreinte autour d'elle et avec une intensité de signal telle que la réception de messsage des signaux d'un poteau de signalisation (15, 16) lors du passage est raisonnablement bonne (50 %); simultanément, la probabilité qu'un message provenant de la station de base (10) ne soit pas reçu est très faible (=0,1).

Claims (4)

1. Un système pour contrôler, à partir d'une station de commande centrale, l'emplacement d'un ensemble d'unités mobiles (14) se déplaçant sur des itinéraires connus à l'avance, ce système comprenant une station de base fixe (10) travaillant sur au moins un canal de transmission, comprenant un émetteur destiné à émettre des communications de parole ou de données sur une première fréquence (F,) et un récepteur (12) destiné à recevoir des communications de parole ou de données sur une seconde fréquence (F2), pour établir des communications par radio sélectives avec les unités mobiles (14),
chacune des unités mobiles comprenant de façon similaire des moyens émetteurs (25) et des moyens récepteurs (23) pour établir des communications par radio avec la station de base (10) et avec des balises situées à des positions spécifiques le long des itinéraires connus, chacune des balises étant équipée d'un émetteur à courte portée (15), pour transférer une information d'indication de position vers des moyens d'enregistrement et de traitement (24) incorporés dans chaque unité mobile (14), et ladite station de commande comprenant en outre un ordinateur qui dirige séquentiellement vers chaque unité mobile des signaux d'interrogation à la réception desquels chaque unité mobile répond à la station de commande en émettant l'information de position enregistrée et traitée, caractérisé en ce que les moyens récepteurs (23) de chaque unité mobile ne comprenne qu'un seul récepteur pour recevoir toutes les communications provenant à la fois de la station de base centrale et des émetteurs de balises, et en ce que la fréquence d'émetteur (F,) de la station de base (10) et la fréquence d'émetteur (Fb) de chaque balise individuelle se trouvent toutes deux dans la gamme métrique/décimétrique (VHF-UHF).
2. Un système selon la revendication 1, caractérisé en ce que la fréquence d'émetteur (F,) de la station de base (10) et la fréquence d'émetteur (Fb) de chaque balise individuelle sont identiques ou pratiquement identiques.
3. Un système selon la revendication ou 2, caractérisé en ce que le rapport entre le niveau du signal provenant des émetteurs de balise et le niveau du signal provenant de l'émetteur de la station de commande centrale est sélectionné d'une manière telle que le niveau de signal sur les chemins des unités mobiles, exactement en face des balises, soit suffisamment supérieur au niveau moyen du signal provenant de la station de commande, pour procurer un taux d'acceptation de messages approprié pour les signaux provenant de la balise, et en ce que, en outre, l'antenne de l'émetteur de la balise présente un diagramme de rayonnement comportant un lobe principal relativement étroit dirigé vers le chemin de l'unité mobile.
4. Un système selon la revendication 1, dans lequel la fréquence de signal (F1) de la station de base (10) est très inférieure ou supérieure à la fréquence de signal (Fb) des balises (15, 16), caractérisé en ce que des circuits supplémentaires (31-36) sont placés à l'entrée du récepteur (23) dans chaque unité mobile (14), pour effectuer une conversion de fréquence faisant passer de la fréquence de signal (Fb) d'une balise (15, 16) à la fréquence de signal (F1) de la station de base (10), grâce à quoi l'information d'indication de position qu'une balise émet vers le récepteur (23) d'une unité mobile (14) n'est pas affectée par la conversion de fréquence.
EP83901813A 1982-06-07 1983-06-07 Systeme de controle de position Expired EP0110945B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK255382A DK154588C (da) 1982-06-07 1982-06-07 Positionsovervaagningsanlaeg
DK2553/82 1982-06-07

Publications (2)

Publication Number Publication Date
EP0110945A1 EP0110945A1 (fr) 1984-06-20
EP0110945B1 true EP0110945B1 (fr) 1987-01-14

Family

ID=8113162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83901813A Expired EP0110945B1 (fr) 1982-06-07 1983-06-07 Systeme de controle de position

Country Status (6)

Country Link
EP (1) EP0110945B1 (fr)
DE (1) DE3390030T1 (fr)
DK (1) DK154588C (fr)
GB (1) GB2132398B (fr)
SE (1) SE456287B (fr)
WO (1) WO1983004451A1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4845648A (en) * 1984-04-27 1989-07-04 Hagenbuch Roy George Le Apparatus and method for on-board measuring of the load carried by a truck body
US4839835A (en) * 1984-04-27 1989-06-13 Hagenbuch Roy George Le Apparatus and method responsive to the on-board measuring of the load carried by a truck body
US4831539A (en) * 1984-04-27 1989-05-16 Hagenbuch Roy George Le Apparatus and method for locating a vehicle in a working area and for the on-board measuring of parameters indicative of vehicle performance
US5327347A (en) * 1984-04-27 1994-07-05 Hagenbuch Roy George Le Apparatus and method responsive to the on-board measuring of haulage parameters of a vehicle
US5416706A (en) * 1984-04-27 1995-05-16 Hagenbuch; Leroy G. Apparatus for identifying containers from which refuse is collected and compiling a historical record of the containers
US5375161A (en) * 1984-09-14 1994-12-20 Accessline Technologies, Inc. Telephone control system with branch routing
US5825867A (en) * 1984-09-14 1998-10-20 Aspect Telecommunications Corporation Enhanced call waiting
US5588037A (en) * 1984-09-14 1996-12-24 Accessline Technologies, Inc. Remote access telephone control system
US5752191A (en) * 1984-09-14 1998-05-12 Accessline Technologies, Inc. Telephone control system which connects a caller with a subscriber AT A telephone address
DE3501034A1 (de) * 1985-01-15 1986-07-17 ANT Nachrichtentechnik GmbH, 7150 Backnang Drahtlose uebermittlung von standortbedingten informationen von einem fahrzeug
DE3501031A1 (de) * 1985-01-15 1986-07-17 ANT Nachrichtentechnik GmbH, 7150 Backnang Standortbestimmung bei fahrzeugen
US4861727A (en) * 1986-09-08 1989-08-29 C. R. Bard, Inc. Luminescent oxygen sensor based on a lanthanide complex
US5190729A (en) * 1986-09-08 1993-03-02 C. R. Bard, Inc. Luminescent oxygen sensor based on a lanthanide complex
GB2236233A (en) * 1989-09-04 1991-03-27 Philips Electronic Associated Communicating information by radio;preventing communication overlap
DE4244624A1 (de) * 1992-12-29 1994-06-30 Mannesmann Ag Verfahren und Einrichtung zum Ermitteln von Fahrdaten eines Schienenfahrzeugs
DE9312460U1 (de) * 1993-08-19 1994-12-15 Siemens AG, 80333 München Elektronische Anordnung zur Überwachung eines Zustandes eines oder mehrerer Gegenstände, z.B. einer Sache und/oder Person
AU5143196A (en) * 1995-03-30 1996-10-16 Willy Palle Pedersen Communication of position signals from mobile units
FR2765710B1 (fr) * 1997-07-04 1999-09-10 Jean Claude Decaux Systeme d'information pour renseigner les usagers d'un reseau de transport en commun relativement aux temps d'attente aux arrets de ce reseau
AU1448999A (en) * 1997-08-07 1999-03-29 Honeywell Inc. Range positioning system
CN104850942B (zh) * 2015-04-29 2018-06-05 武汉体育学院 一种户外健身器材监控设备

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644883A (en) * 1950-04-28 1953-07-07 Leonard W Schoenherr Spring-held decorative shade

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3644883A (en) * 1969-12-29 1972-02-22 Motorola Inc Automatic vehicle monitoring identification location alarm and voice communications system
US3757290A (en) * 1971-03-12 1973-09-04 Sperry Rand Corp Automatic vehicle monitoring system
US3697941A (en) * 1971-07-01 1972-10-10 Devenco Inc Vehicle location system and method
DE2143474C3 (de) * 1971-08-31 1986-11-13 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt System zum zentralen Überwachen des Standortes eines Fahrzeuges
US3735335A (en) * 1971-12-20 1973-05-22 Rca Corp Electronic fence vehicle locater transmitter and system using same
DE2539241C3 (de) * 1975-09-03 1985-02-07 Siemens AG, 1000 Berlin und 8000 München Einrichtung zur zentralen Standortüberwachung der Fahrzeuge eines Verkehrsnetzes, z.B. städtischer Omnibusse
ZA774966B (en) * 1976-09-30 1978-06-28 Motorola Inc Vehicle location system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644883A (en) * 1950-04-28 1953-07-07 Leonard W Schoenherr Spring-held decorative shade

Also Published As

Publication number Publication date
EP0110945A1 (fr) 1984-06-20
DE3390030T1 (de) 1984-06-28
GB2132398A (en) 1984-07-04
SE456287B (sv) 1988-09-19
DK154588B (da) 1988-11-28
DK154588C (da) 1989-04-24
GB8402638D0 (en) 1984-03-07
DE3390030C2 (fr) 1991-02-07
WO1983004451A1 (fr) 1983-12-22
GB2132398B (en) 1986-08-06
SE8400632D0 (sv) 1984-02-07
SE8400632L (sv) 1984-02-07
DK255382A (da) 1984-02-02

Similar Documents

Publication Publication Date Title
EP0110945B1 (fr) Systeme de controle de position
US5214789A (en) Radio channel allocation based on location of mobile users
US5355511A (en) Position monitoring for communicable and uncommunicable mobile stations
US5493694A (en) Fast response system for a fleet of vehicles
EP0484918B1 (fr) Service de téléphonie cellulaire amélioré utilisant une transmission par étalement de spectre
EP0133378B1 (fr) Méthode et système de radiolocalisation de cas de détresse
US3714650A (en) Vehicle command and control system
US5218716A (en) Method for locating a communication unit within a multi mode communication system
US5115224A (en) Personal security system network
US5396540A (en) Remote vehicle communications system and method
US5666662A (en) Method for detecting the location of a mobile terminal
US5404135A (en) Sea navigation control process
US4356484A (en) Method for transmitting data in a time multiplex transmission
US4296400A (en) Installation for control of a traffic light system by vehicles having an automatic location determination
EP1410361B1 (fr) Appareil de diffusion d'un signal d'avertissement
US4140973A (en) Channel evaluation apparatus for point-to-point communications systems
US5765112A (en) Low cost wide area network for data communication using outbound message specifying inbound message time and frequency
US6714761B1 (en) Meteor burst communication system having the capability of simultaneous communication with multiple remote units
WO1997017623A1 (fr) Systeme a niveaux multiples de poursuite de vehicule
RU2791262C1 (ru) Система радиосвязи с подвижными объектами
JP2887510B2 (ja) 移動局情報収集システム
JP2833172B2 (ja) 移動局位置モニタリングシステム
JPH08263798A (ja) 車両接近表示システム
Peed et al. A system analysis of a GNSS augmentation data link
Banks DATATRAK automatic vehicle location and position reporting system

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19840206

AK Designated contracting states

Designated state(s): FR

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): FR

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020605

Year of fee payment: 20