EP0383657A1 - Antennensystem zum Empfangen von Direkt-Rundfunk-Übertragungs-Satelliten - Google Patents

Antennensystem zum Empfangen von Direkt-Rundfunk-Übertragungs-Satelliten Download PDF

Info

Publication number
EP0383657A1
EP0383657A1 EP90400358A EP90400358A EP0383657A1 EP 0383657 A1 EP0383657 A1 EP 0383657A1 EP 90400358 A EP90400358 A EP 90400358A EP 90400358 A EP90400358 A EP 90400358A EP 0383657 A1 EP0383657 A1 EP 0383657A1
Authority
EP
European Patent Office
Prior art keywords
antenna
support leg
antenna system
reflector
base
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.)
Granted
Application number
EP90400358A
Other languages
English (en)
French (fr)
Other versions
EP0383657B1 (de
Inventor
Claude Cluniat
Maurice Loiseau
Guy Bastard
Jean-Jacques Lombard
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.)
LGT Laboratoire General des Telecommunications
Thomson LGT Laboratoire General des Telecommunications
Original Assignee
LGT Laboratoire General des Telecommunications
Thomson LGT Laboratoire General des Telecommunications
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 LGT Laboratoire General des Telecommunications, Thomson LGT Laboratoire General des Telecommunications filed Critical LGT Laboratoire General des Telecommunications
Priority to AT90400358T priority Critical patent/ATE101304T1/de
Publication of EP0383657A1 publication Critical patent/EP0383657A1/de
Application granted granted Critical
Publication of EP0383657B1 publication Critical patent/EP0383657B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/247—Supports; Mounting means by structural association with other equipment or articles with receiving set with frequency mixer, e.g. for direct satellite reception or Doppler radar
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/125—Means for positioning

Definitions

  • the invention relates to the field of reception of direct broadcast TV satellites, and more particularly to a reception antenna system.
  • D. B. S (Direct Broadcasting Satellite) satellites such as TDF 1, TV SAT, OLYMPUS, BSD etc ... different kinds of known antennas could be used:
  • a first known type of antenna uses a paraboloid of revolution, with a source placed at the focus of this paraboloid.
  • the antenna access is carried out either directly at the focal point of the parabola, at the source access, or at the rear of the antenna with a stick in the form of a guide making the connection between the source and the rear of the antenna.
  • the antenna is placed on a support dimensioned according to the size of the parabola, this support allowing pointing in azimuth and in elevation towards the satellite to be received.
  • This type of antenna is that the projected shadow of the source, its support, and its retaining arms masks part of the reflector, which leads to a reduction in efficiency.
  • the use of a waveguide to gain access to the rear of the antenna makes it possible to protect the low noise converter (LNB) but causes a loss of transmission which results in a decrease in gain and a increased antenna noise temperature.
  • this type of antenna is of high cost, in particular because of the number of mechanical parts to be used to produce the antenna structure and allow its orientation.
  • the latest developments in this type of antenna have made it possible, thanks to FET AsGa transistors, to obtain low noise converters small dimensions that could be placed directly behind the source, at the focus of the dish so as to reduce transmission losses.
  • the mask is further increased on the reflector, especially for small diameter antennas.
  • the electronics are then subjected more directly to climatic conditions, temperature variations in particular, and to induced vibrations.
  • An eccentric parabolic reflector This type of antenna is commonly called an "off-set" antenna. It is an antenna whose reflector is constituted by a portion of paraboloid of revolution, the source, spaced from the axis of this paraboloid, not casting a shadow on the opening. For this, the reflector is obtained by cutting a paraboloid by a cylinder of diameter D, centered on an axis parallel to the focal axis of the paraboloid. The source is then placed at the focal point F of the paraboloid and targets the middle of the paraboloid portion. The antenna access is generally carried out at the source access, the low noise converter then being placed directly behind the source, in front of the reflector.
  • this "off-set" structure is the increase in the efficiency of the antenna by reducing the mask effect of the source, the more the antenna is not very sensitive to climatic conditions and because of its structure l he antenna pointing towards the satellite is practically vertical.
  • this second type of antenna also has significant drawbacks: the production of this type of reflector, which is not of revolution, is difficult and unsuitable for manufacture by embossing or stamping.
  • the antenna radiation patterns are not of revolution and the ellipticity rate of an antenna of this type, used in circular polarization is higher than with an antenna using a reflector in the form of a paraboloid of revolution. .
  • the low noise converter is placed in front of the reflector, and therefore subject to climatic conditions (temperature in particular).
  • the reference plane in elevation is not easily defined, it is not easy to point the antenna towards the satellite to receive.
  • the subject of the invention is a compact antenna system, intended to receive the signals transmitted by a satellite, integrating the low noise converter amplifier to amplify the signals received by the antenna and convert them into the required band, this antenna being designed to integrate all or part of the electronic functions necessary for the compatibility of reception of TV images, while being very inexpensive and very simple to point.
  • an antenna system for reception of a direct broadcast satellite is characterized in that it comprises a parabolic reflector, the rear central part of which is fixed to a hollow tubular body of a support leg by means of a fixing piece, the reflector, the fixing piece and the tubular body of the support leg being traversed by a tube of the same axis as the reflector, containing the source and forming protection and means for centering the source in the reflector, the tubular body of the support leg being articulated at its base on a horizontal axis carried by a base and associated with blocking means fixing the elevation of the antenna, the base being movable in rotation about a vertical axis to fix the azimuth of the antenna, all the circuits of the antenna system and its electrical supply means being fixed inside the tubular body of the support leg.
  • the embodiments described in detail are specially adapted for the reception of satellites transmitting in the band 11.7 to 12.5 GHz, in right or left circular polarization.
  • the antenna can be modified to be adapted to another frequency band or to other types of polarization.
  • the antenna system according to the invention mainly consists of an antenna with its diameter reflector adapted to the power received from the satellite and its source, of a support leg ensuring the geometry of the antenna and simultaneously allowing its adjustment for pointing the satellite, and electronic circuits essentially the low noise converter amplifier, possibly supplemented by other circuits.
  • FIG. 1 represents the embodiment of the antenna system according to the invention for the reception of the TDF satellite 1 which radiates a power of 63 dBW: the reflector 1 of the antenna is a parabolic reflector of diameter 0.33 meter.
  • the system is adaptable to larger diameters for powers emitted by other smaller satellites, up to 0.7 meters without modification, for example for ASTRA which radiates a power of 52 dBW.
  • the reflector 1 is a paraboloid of revolution whose ratio between the focal length and the diameter is 0.3, which taking into account the diameter of 0.33 m leads to a focal distance of 97 mm.
  • the opening angle of the dish is 161 °.
  • This reflector is made of aluminum 15 tenths of a millimeter thick, and is obtained by flow spinning for small quantities or by stamping for larger quantities.
  • This reflector 1 is fixed directly by its central part to the support leg as will be explained below.
  • the source allows the reception of signals in circular polarization of the frequency band 11.7 to 12.5 GHz.
  • This source consists of a semi-rigid coaxial cable with PTFE dielectric, under copper tube, 2, surmounted by the illuminant 3 which uses the radiation properties of the surface waves: this illuminant 3 is in the form of a helix or any other source allowing the electronics to be transferred to the rear of the antenna reflector.
  • the illuminant is a helix whose turns were obtained by winding on a cylinder with a diameter of 6 mm with a pitch of 12 mm, the angle of inclination of the turns being 30 °.
  • the attenuation provided by the semi-rigid coaxial cable used in the 12 GHZ band is of the order of 1.5 dB per meter, which translates for the antenna described by a gain reduction of the order of 0 , 2 dB. Due to the structure of the source relative to the reflector, the losses created by the masking of the reflector by the source are limited to 0.01 dB.
  • This source (coaxial cable surrounded by the helical illuminant) is fixed in a polypropylene tube 4 of the same axis as the reflector which it crosses at its center; this tube closed at its end on the illuminating side with a cap 5 forms a radome and ensures leaktightness.
  • the measured radome losses are at 0.2 dB use frequencies.
  • the tube 4 is held in position in a centering piece 6 fixed on the one hand to the rear of the reflector, on the other hand to a hollow tube 7 forming the body of the support leg. This ensures the rigidity of the supply line.
  • the source is centered in the tube 4 and held in position by the piece 6 centered at the rear of the reflector, itself held by means of screws on the body 7 of the foot support.
  • the piece 6 centered at the rear of the reflector, itself held by means of screws on the body 7 of the foot support.
  • the dimensioning of the body 7 of the support leg is such that the replacement of the reflector is possible by simple removal of the fixing screws of the latter on the part 6 and as indicated above, the diameter of the reflectors can be modified.
  • the support leg has three functions: - ensure the geometry of the antenna as indicated above; - contain and protect the electronics necessary for processing signals received from the satellite; - allow rapid pointing of the antenna, even by a non-specialist.
  • the source, supply and conversion head assembly 10 is fixed in the body of the support leg 7 by means of a part 8.
  • the conversion head secured to the body of the support foot is protected from runoff by a cover 9 which protects it from the weather, this cover closing the upper part of the tube 7 forming the body of the support foot.
  • a cover 9 which protects it from the weather, this cover closing the upper part of the tube 7 forming the body of the support foot.
  • the tube 7 forming the support leg 2 is not closed, which allows air circulation preventing condensation due to this opening in the lower part.
  • the reception access at the outlet of the support leg is effected by means of a cable 20 secured to the conversion head 10 and passing through an opening made in the lower part of the body 7 of the support leg.
  • the reflector, source and conversion head assembly is compact and contains all the elements necessary to receive satellite signals.
  • the assembly described above is held on a base by means of two screws 15 making an articulation on a vertical tube 11 which allows the tilting of the antenna around a horizontal axis XX.
  • the base consists of two mechanical parts: - A fixed part 21, in the form of a cross for example, which is fixed horizontally (or vertically) by means of screws placed in the holes 22 of its arms. On this fixed part is placed a bubble 23 making it possible to perfectly define a horizontal or vertical plane and therefore to obtain a reference plane for the definition of the elevation of the antenna.
  • a mobile part 24 surmounted by the tube 11, centered in rotation on the fixed part and made integral with the latter by means of two screws 25. These screws slide in the countersinks of the mobile part. The blocking of these two screws ensures the immobilization of the azimuth axis of the antenna after the rotation of the rotating moving part 24 relative to the fixed part 21 has made it possible to define the azimuth axis.
  • To preposition the antenna towards the satellite a magnetic needle is placed on this mobile part as well as possibly an orientation dial.
  • the tube 11 of this movable part supports the body 7 of the oscillating foot on the axis defined by the two screws 15 shown in the partial section AA of FIG. 1.
  • the elevation of the antenna is adjusted by moving a screw 26, in a maximum sector defined by a movable stop 17, the blocking and immobilization after adjustment being effected by blocking the screws 15 and the movable stop.
  • this support leg All the parts of this support leg are made of aluminum, and all the shapes adopted are simple shapes which can, for very large series, be obtained by molding or stamping, thus minimizing production costs.
  • the positioning indexes placed for the adjustment of the elevation and azimuth axes include graduations and possibly the indication of the pointed satellites.
  • FIG. 2 represents an embodiment of an antenna according to the invention thus simplified intended to be fitted directly into a standard tube; the same references designate the same elements as in FIG. 1.
  • the base of the support tube 11 is directly fitted into a standard support tube external to the antenna system, 50.
  • the horizontal part of the support base is eliminated, and the reference axis is given directly by the standard tube positioned vertically for this purpose.
  • This figure also illustrates in strong lines the parabolic reflector 1 of 0.33 meters in diameter, and in dashed lines a reflector 1 ′ of a different diameter, for example 0.7 meters.
  • the support tube 7 has been shown in three different positions, one in solid lines and the other two in broken lines to show the possible angular movement of the system.
  • the source has been shown in the figures as a simple helix having a free end.
  • This type of source is perfectly suited to emissions in circular polarization from a satellite such as TDF 1.
  • TDF 1 satellite a satellite
  • the source will be adapted to the mode of polarization of satellite emissions.
  • the polarization for transmissions from the TDF 1 satellite is circular
  • the polarization for the transmissions received from the ASTRA satellite is expected to be horizontal or vertical.
  • some satellites will transmit in two circular polarizations, right and left.
  • the corresponding sources will be adapted to the reception of these different types of polarizations.
  • the tube 4 forming a radome can be made of a material other than polypropylene, provided that this material does not create losses.
  • the structure thus obtained for the antenna system is particularly compact and very easy to install: all the seals are made in the factory and no special precautions are necessary during installation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Radio Relay Systems (AREA)
  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)
EP90400358A 1989-02-17 1990-02-09 Antennensystem zum Empfangen von Direkt-Rundfunk-Übertragungs-Satelliten Expired - Lifetime EP0383657B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90400358T ATE101304T1 (de) 1989-02-17 1990-02-09 Antennensystem zum empfangen von direkt-rundfunk- uebertragungs-satelliten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8902082A FR2643511B1 (fr) 1989-02-17 1989-02-17 Systeme d'antenne pour reception de satellite de diffusion directe
FR8902082 1989-02-17

Publications (2)

Publication Number Publication Date
EP0383657A1 true EP0383657A1 (de) 1990-08-22
EP0383657B1 EP0383657B1 (de) 1994-02-02

Family

ID=9378878

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90400358A Expired - Lifetime EP0383657B1 (de) 1989-02-17 1990-02-09 Antennensystem zum Empfangen von Direkt-Rundfunk-Übertragungs-Satelliten

Country Status (8)

Country Link
EP (1) EP0383657B1 (de)
JP (1) JPH02246401A (de)
AT (1) ATE101304T1 (de)
BR (1) BR9000693A (de)
CA (1) CA2010255A1 (de)
DE (1) DE69006372T2 (de)
ES (1) ES2048984T3 (de)
FR (1) FR2643511B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0494017A1 (de) * 1991-01-04 1992-07-08 Thomson-Csf Anordnung, um eine Antenne umfassend gegen elektromagnetische Störungen abzuschirmen
EP0683540A1 (de) * 1994-05-20 1995-11-22 de los Angeles Gmür-Mosquera, Maria Satellitenantenne
FR2754940A1 (fr) * 1996-10-23 1998-04-24 Coprebat Dispositif support d'antenne permettant d'assurer les reglages aupres de la zone de fixation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1918084A1 (de) * 1969-04-09 1970-10-29 Kathrein Werke Kg Empfangssystem mit Parabolantenne und Frequenzumsetzer
FR2471058A3 (fr) * 1979-12-07 1981-06-12 Thomson Brandt Support d'antenne pour reception de satellite geo-stationnaire, et antenne munie d'un tel support
DE3125593A1 (de) * 1981-06-30 1983-05-26 AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang Antennenhalterung
GB2178904A (en) * 1985-08-05 1987-02-18 Tdk Corp Antenna system
EP0244969A2 (de) * 1986-05-02 1987-11-11 Borg-Warner Chemicals Europe BV Antenne zum Empfangen von Direkt-Rundfunkübertragungs-Satelliten

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6075103A (ja) * 1983-09-30 1985-04-27 Matsushita Electric Ind Co Ltd パラボラアンテナの取付装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1918084A1 (de) * 1969-04-09 1970-10-29 Kathrein Werke Kg Empfangssystem mit Parabolantenne und Frequenzumsetzer
FR2471058A3 (fr) * 1979-12-07 1981-06-12 Thomson Brandt Support d'antenne pour reception de satellite geo-stationnaire, et antenne munie d'un tel support
DE3125593A1 (de) * 1981-06-30 1983-05-26 AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang Antennenhalterung
GB2178904A (en) * 1985-08-05 1987-02-18 Tdk Corp Antenna system
EP0244969A2 (de) * 1986-05-02 1987-11-11 Borg-Warner Chemicals Europe BV Antenne zum Empfangen von Direkt-Rundfunkübertragungs-Satelliten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 216 (E-340)[1939], 3 septembre 1985; & JP-A-60 75 103 (MATSUSHITA DENKI SANGYO K.K.) 27-04-1985 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0494017A1 (de) * 1991-01-04 1992-07-08 Thomson-Csf Anordnung, um eine Antenne umfassend gegen elektromagnetische Störungen abzuschirmen
EP0683540A1 (de) * 1994-05-20 1995-11-22 de los Angeles Gmür-Mosquera, Maria Satellitenantenne
FR2754940A1 (fr) * 1996-10-23 1998-04-24 Coprebat Dispositif support d'antenne permettant d'assurer les reglages aupres de la zone de fixation

Also Published As

Publication number Publication date
EP0383657B1 (de) 1994-02-02
FR2643511A1 (fr) 1990-08-24
DE69006372T2 (de) 1994-05-11
CA2010255A1 (en) 1990-08-17
ES2048984T3 (es) 1994-04-01
FR2643511B1 (fr) 1991-04-19
ATE101304T1 (de) 1994-02-15
JPH02246401A (ja) 1990-10-02
BR9000693A (pt) 1991-01-22
DE69006372D1 (de) 1994-03-17

Similar Documents

Publication Publication Date Title
FR2602918A1 (fr) Systeme d'antenne
US6697027B2 (en) High gain, low side lobe dual reflector microwave antenna
US6522305B2 (en) Microwave antennas
US20050259025A1 (en) Small wave-guide radiators for closely spaced feeds on multi-beam antennas
US4673945A (en) Backfire antenna feeding
EP1445829A1 (de) Subreflektor für Cassegrain-Mikrowellenantenne
KR20150090077A (ko) 무선 통신 터미널에 부착되는 반사경 배열
MXPA02007128A (es) Antena de alto rendimiento y bajo costo para utilizarse en terminales satelitales interactivas.
EP0520851A1 (de) Antennenkombination für den Empfang von Signalen von Satelliten und Bodenstationen, insbesondere für den Empfang von digitalen Ton-Rundfunksignalen
KR100414248B1 (ko) 피돔,1차방사기및마이크로파용안테나
EP2416449A1 (de) Parabolantenne
EP0274693B1 (de) Nachrichtenübertragungsantenne mit Reflektor
US4636798A (en) Microwave lens for beam broadening with antenna feeds
FR2725561A1 (fr) Systeme a antennes sources multiples integrees au convertisseur de frequence a faible bruit
EP3109941B1 (de) Mikrowellen-doppelreflektorantenne
EP0383657B1 (de) Antennensystem zum Empfangen von Direkt-Rundfunk-Übertragungs-Satelliten
US5212493A (en) Antenna system for reception from direct broadcasting satellites
CA2800952C (fr) Antenne compacte large bande a tres faible epaisseur et a double polarisations lineaires orthogonales operant dans les bandes v/uhf
EP0934608B1 (de) Antennensystem für tragbares funkgerät
TWI449445B (zh) 束波調整裝置
WO2011054669A1 (fr) Montage d'antenne a faisceau mobile
FR2685979A1 (fr) Systeme d'antenne.
FR2471058A3 (fr) Support d'antenne pour reception de satellite geo-stationnaire, et antenne munie d'un tel support
JPH0552082B2 (de)
EP2943995A1 (de) Doppelantenne

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19910122

17Q First examination report despatched

Effective date: 19930609

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES GB GR IT LI LU NL SE

REF Corresponds to:

Ref document number: 101304

Country of ref document: AT

Date of ref document: 19940215

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: JACOBACCI CASETTA & PERANI S.P.A.

REF Corresponds to:

Ref document number: 69006372

Country of ref document: DE

Date of ref document: 19940317

EPTA Lu: last paid annual fee
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2048984

Country of ref document: ES

Kind code of ref document: T3

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940308

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3011248

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

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19950116

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950119

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19950120

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19950123

Year of fee payment: 6

Ref country code: GR

Payment date: 19950123

Year of fee payment: 6

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

Ref country code: BE

Payment date: 19950130

Year of fee payment: 6

EAL Se: european patent in force in sweden

Ref document number: 90400358.9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19950201

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19950203

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19950227

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19950228

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19960209

Ref country code: GB

Effective date: 19960209

Ref country code: AT

Effective date: 19960209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19960210

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19960210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19960228

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19960228

Ref country code: BE

Effective date: 19960228

BERE Be: lapsed

Owner name: THOMSON-LABORATOIRE GENERAL DES TELECOMMUNICATIONS

Effective date: 19960228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19960831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19960901

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960209

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GR

Ref legal event code: MM2A

Free format text: 3011248

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19960901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19961101

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19990405

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050209