ES2055134T3 - Dispositivo y sistema de radiodifusion isofrecuencia de interferencias atenuadas. - Google Patents

Dispositivo y sistema de radiodifusion isofrecuencia de interferencias atenuadas.

Info

Publication number
ES2055134T3
ES2055134T3 ES89403244T ES89403244T ES2055134T3 ES 2055134 T3 ES2055134 T3 ES 2055134T3 ES 89403244 T ES89403244 T ES 89403244T ES 89403244 T ES89403244 T ES 89403244T ES 2055134 T3 ES2055134 T3 ES 2055134T3
Authority
ES
Spain
Prior art keywords
iso
address
issuance
reception
groups
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 - Lifetime
Application number
ES89403244T
Other languages
English (en)
Inventor
Henri L Chemin
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.)
AUTOROUTES CIE FINANC INDLE
Original Assignee
AUTOROUTES CIE FINANC INDLE
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 AUTOROUTES CIE FINANC INDLE filed Critical AUTOROUTES CIE FINANC INDLE
Application granted granted Critical
Publication of ES2055134T3 publication Critical patent/ES2055134T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/67—Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/091—Traffic information broadcasting
    • G08G1/094—Hardware aspects; Signal processing or signal properties, e.g. frequency bands
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
    • G08G1/096783—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a roadside individual element
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2625—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using common wave
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radio Relay Systems (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

EL PROCEDIMIENTO DE RADIODIFUSION ISOFRECUENCIA ESTA DESTINADO A POSIBILITAR LA RECEPCION DE UNA ESTACION MEDIANTE UN RECEPTOR SITUADO A BORDO DE UN VEHICULO, QUE SE DESPLAZA A LARGA DISTANCIA, EN ESPECIAL REALIZANDO UN TRAYECTO POR CARRETERA. SE DISPONE, A LO LARGO DEL TRAYECTO, A INTERVALOS REDUCIDOS, UNOS EMISORES, UNOS REEMISORES O AMPLIFICADORES (2), SITUADOS ENTRE ANTENAS DE EMISION Y DE RECEPCION, DE POCA POTENCIA EN LA MISMA FRECUENCIA Y SINCRONIZADAS, SIENDO LOS REEMISORES (2) DIRECCIONALES Y DOS REEMISORES CONSECUTIVOS ESTAN DIRIGIDOS APROXIMADAMENTE EN LA MISMA DIRECCION DE FORMA QUE EL SEGUNDO PUEDA RECIBIR LA EMISION DEL PRIMERO Y RETRANSMITIRLA AL SIGUIENTE, CON UNA ZONA DE PERTURBACIONES REDUCIDA. SE UTILIZAN UNOS AGRUPAMIENTOS DIRECCIONES DE ANTENAS ELEMENTALES (4,5) DISTRIBUIDAS EN EL ESPACIO DE L/4 Y SE ALIMENTA A ESTOS AGRUPAMIENTOS CON UN DESFASAJE DE L/4 DE UNA ANTENA EN RELACION A LA OTRA DE FORMA TAL QUE LOS CAMPOS EMITIDOS SE A/ADEN EN LA DIRECCION DE LA EMISION YSE SUSTRAEN PARA ANULARSE EN LA DIRECCION OPUESTO, Y QUE EL RETARDO DE LA SEÑAL DE CADA REEMISOR TIENE UN VALOR MUY PEQUEÑO.
ES89403244T 1988-11-23 1989-11-23 Dispositivo y sistema de radiodifusion isofrecuencia de interferencias atenuadas. Expired - Lifetime ES2055134T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR888815254A FR2639492B1 (fr) 1988-11-23 1988-11-23 Procede et dispositif de radiodiffusion isofrequence a interferences attenuees

Publications (1)

Publication Number Publication Date
ES2055134T3 true ES2055134T3 (es) 1994-08-16

Family

ID=9372148

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89403244T Expired - Lifetime ES2055134T3 (es) 1988-11-23 1989-11-23 Dispositivo y sistema de radiodifusion isofrecuencia de interferencias atenuadas.

Country Status (4)

Country Link
EP (1) EP0370915B1 (es)
DE (1) DE68914103T2 (es)
ES (1) ES2055134T3 (es)
FR (1) FR2639492B1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2673784B1 (fr) * 1991-03-08 1993-07-02 Autoroutes Cie Financ Indle Perfectionnement aux reseaux isofrequence.
FR2688364B1 (fr) * 1992-03-06 1995-02-24 Telediffusion Fse Procede et systeme permettant d'obtenir un reseau d'emetteurs fm, notamment monofrequence synchrone.
FR2692741B1 (fr) * 1992-06-17 1994-09-02 Autoroutes Cie Financ Indle Perfectionnement aux réseaux isofréquence.
FR2750257B1 (fr) * 1996-06-19 1998-08-21 Fin Et Ind Des Autoroutes Comp Procede et dispositif de rayonnement a fort rapport avant/arriere dirige
DE19756050C1 (de) * 1997-12-17 1999-03-18 Deutsche Telekom Ag Verfahren zur Signalversorgung von Repeatern in Gleichwellensendernetzen sowie Einrichtung zur Durchführung des Verfahrens

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1505074A (en) * 1975-05-30 1978-03-22 British Aircraft Corp Ltd Receiving and/or transmitting aerial systems
DE3213645A1 (de) * 1982-04-14 1983-10-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Gleichwellenfunknetz
IT1205657B (it) * 1987-05-21 1989-03-31 Rai Radiotelevisione Italiana Impianto di radiodiffusione isofrequenziale di programmi radiofonici,particolarmente in modulazione di frequenza,lungo un percorso stradale

Also Published As

Publication number Publication date
EP0370915B1 (fr) 1994-03-23
DE68914103D1 (de) 1994-04-28
EP0370915A1 (fr) 1990-05-30
FR2639492A1 (fr) 1990-05-25
FR2639492B1 (fr) 1994-07-29
DE68914103T2 (de) 1994-10-27

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