ES2121903T3 - Metodo para transferir, por medio de un sistema de radioenlace señales radiofonicas para la emision de isofrecuencia. - Google Patents
Metodo para transferir, por medio de un sistema de radioenlace señales radiofonicas para la emision de isofrecuencia.Info
- Publication number
- ES2121903T3 ES2121903T3 ES93111014T ES93111014T ES2121903T3 ES 2121903 T3 ES2121903 T3 ES 2121903T3 ES 93111014 T ES93111014 T ES 93111014T ES 93111014 T ES93111014 T ES 93111014T ES 2121903 T3 ES2121903 T3 ES 2121903T3
- Authority
- ES
- Spain
- Prior art keywords
- frequency
- radio
- signal
- relay system
- issuance
- 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
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000004353 relayed correlation spectroscopy Methods 0.000 abstract 3
- 238000001914 filtration Methods 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radio Relay Systems (AREA)
- Noise Elimination (AREA)
Abstract
LA FRECUENCIA DE LA SEÑAL RADIOFONICA DE "ISOFRECUENCIA" (F1) SE CONVIERTE EFECTUANDO UN BATIDO DE FRECUENCIAS JUNTO CON UNA FRECUENCIA FIJA GENERADA POR UN OSCILADOR LOCAL (12) CONTROLADO POR UN OSCILADOR DE REFERENCIA (14) DE ACUERDO CON UN FACTOR CONSTANTE. USANDO UN FILTRADO DE PASO DE BANDA, UNA SEÑAL DE FRECUENCIA PORTADORA INTERMEDIA (FP), IGUAL A LA DIFERENCIA ENTRE LA FRECUENCIA DE LA SEÑAL RADIOFONICA Y LA FRECUENCIA FIJA, SE EXTRAE Y TRANSMITE SOBRE EL SISTEMA DE RELES RADIOELECTRICOS JUNTO CON LA FRECUENCIA DE REFERENCIA. EN EL EXTREMO DE RECEPCION, LA SEÑAL RECIBIDA DESDE EL SISTEMA DE RELES DE RADIOFRECUENCIA SE FILTRA EN DOS FILTROS DE PASO DE BANDA (20, 22) PARA AISLAR LA SEÑAL INTERMEDIA Y LA FRECUENCIA DE REFERENCIA. LA FRECUENCIA FIJA SE RECONSTRUYE A PARTIR DE LA FRECUENCIA DE REFERENCIA MULTIPLICANDO POR EL FACTOR ANTES MENCIONADO, Y LA SEÑAL INTERMEDIA SE RECONVIERTE EFECTUANDO UN BATIDO DE FRECUENCIAS JUNTO CON LA FRECUENCIA FIJA; FILTRANDO DE MANERA QUE SE OBTENGA LASEÑAL RADIOFONICA ORIGINAL. EL METODO PUEDE EXTENDERSE A LAS TRANSMISIONES DE UNA PLURALIDAD DE SEÑALES RADIOFONICAS CON UNA FRECUENCIA DE REFERENCIA SIMPLE SOBRE UN MISMO SISTEMA DE RELES RADIOELECTRICOS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI921954A IT1255805B (it) | 1992-08-07 | 1992-08-07 | Procedimento per il trasferimento tramite ponte radioelettrico video di segnali destinati alla radiodiffusione isofrequenziale |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2121903T3 true ES2121903T3 (es) | 1998-12-16 |
Family
ID=11363853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES93111014T Expired - Lifetime ES2121903T3 (es) | 1992-08-07 | 1993-07-09 | Metodo para transferir, por medio de un sistema de radioenlace señales radiofonicas para la emision de isofrecuencia. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0582103B1 (es) |
DE (1) | DE69321312T2 (es) |
ES (1) | ES2121903T3 (es) |
IT (1) | IT1255805B (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10248685A1 (de) * | 2002-07-15 | 2004-02-05 | Prosch, Theodor, Dr. | Gleichwellensendernetze auf der Grundlage von Breitbandverteilanlagen |
DE102004016406B4 (de) * | 2004-03-26 | 2006-06-08 | Prosch, Theodor, Dr. | Steuerung von Gleichwellensendern mit Signalzuführung durch Breitbandverteilanlagen |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4475243A (en) * | 1982-12-21 | 1984-10-02 | Motorola, Inc. | Isolation method and apparatus for a same frequency repeater |
US5089815A (en) * | 1987-05-08 | 1992-02-18 | Detector Systems, Inc. | Vehicle communication system using existing roadway loops |
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 |
-
1992
- 1992-08-07 IT ITMI921954A patent/IT1255805B/it active IP Right Grant
-
1993
- 1993-07-09 EP EP93111014A patent/EP0582103B1/en not_active Expired - Lifetime
- 1993-07-09 ES ES93111014T patent/ES2121903T3/es not_active Expired - Lifetime
- 1993-07-09 DE DE69321312T patent/DE69321312T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69321312D1 (de) | 1998-11-05 |
EP0582103A2 (en) | 1994-02-09 |
ITMI921954A0 (it) | 1992-08-07 |
EP0582103A3 (en) | 1995-02-01 |
DE69321312T2 (de) | 1999-04-01 |
IT1255805B (it) | 1995-11-16 |
EP0582103B1 (en) | 1998-09-30 |
ITMI921954A1 (it) | 1994-02-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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