ES2100789B1 - TRANSMISSION OF GPS CORRECTION DATA THROUGH RDS IN THE FM COMMERCIAL NETWORK. - Google Patents
TRANSMISSION OF GPS CORRECTION DATA THROUGH RDS IN THE FM COMMERCIAL NETWORK.Info
- Publication number
- ES2100789B1 ES2100789B1 ES9400136A ES9400136A ES2100789B1 ES 2100789 B1 ES2100789 B1 ES 2100789B1 ES 9400136 A ES9400136 A ES 9400136A ES 9400136 A ES9400136 A ES 9400136A ES 2100789 B1 ES2100789 B1 ES 2100789B1
- Authority
- ES
- Spain
- Prior art keywords
- rds
- commercial
- transmission
- correction data
- receiver
- 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
Abstract
TRANSMISION DE DATOS DE CORRECCION GPS MEDIANTE RDS EN LA RED COMERCIAL DE FM. CONSISTENTE EN UNA CADENA COMERCIAL DE ESTACIONES DE RADIO INSTALADAS EN UNAS POSICIONES GEOGRAFICAS CONOCIDAS, DOTADA CADA UNA DE ELLAS DE UN RECEPTOS GPS DIFERENCIAL CAPAZ DE CALCULAR LAS CORRECCIONES DE DISTANCIA Y VELOCIDAD DE LOS SATELITES VISIBLES Y DE TRANSMITIRLAS A LOS USUARIOS MEDIANTE EL RADIO DATA SYSTEM (RDS) DE LAS EMISORAS DE FRECUENCIA MODULADA (FM) COMERCIALES, EN UN FORMATO RTCM CON O SIN ENCRIPTACION. LOS USUARIOS DISPONEN DE UN RECEPTOR COMERCIAL DE FM RDS O DE UN RECEPTOR DEDICADO, DONDE UNA VEZ OBTENIDA LA BANDA BASE (11), SE DEMODULA (15) Y DECODIFICA (17) EL RDS PARA OBTENER LOS MENSAJES DE CORRECCIONES DGPS (18), QUE SON DESENCRIPTADOS Y CONFORMADOS (20) PARA SER UTILIZADOS POR CUALQUIER RECEPTOR DGPS (23) COMERCIAL. EL ENCRIPTADO Y DESENCRIPTADO SE BASA EN OPERACIONES LOGICAS Y DESDE LA EMISORA SE PUEDE INHIBIR LA RECEPCION DE CORRECCIONES A UN USUARIO O GRUPO DE ELLOS.TRANSMISSION OF GPS CORRECTION DATA THROUGH RDS IN THE FM COMMERCIAL NETWORK. CONSISTING OF A COMMERCIAL CHAIN OF RADIO STATIONS INSTALLED IN KNOWN GEOGRAPHICAL POSITIONS, EACH OF THEM PROVIDED WITH A DIFFERENTIAL GPS RECEPTTS CAPABLE OF CALCULATING THE DISTANCE AND SPEED CORRECTIONS OF THE VISIBLE AND RADIO USING SATELLITE TRANSMISSION SATELLITES (RDS) OF COMMERCIAL MODULATED FREQUENCY (FM) STATIONS, IN A RTCM FORMAT WITH OR WITHOUT ENCRYPTION. USERS HAVE A COMMERCIAL FM RDS RECEIVER OR A DEDICATED RECEIVER, WHERE ONCE THE BASE BAND (11) IS OBTAINED, THE RDS IS DEMODULATED (15) AND DECODED (17) TO OBTAIN THE DGPS CORRECTION MESSAGES (18), WHICH ARE DECRYPTED AND CONFORMED (20) TO BE USED BY ANY COMMERCIAL DGPS RECEIVER (23). THE ENCRYPTED AND DECRYPTED IS BASED ON LOGICAL OPERATIONS AND FROM THE ISSUER THE RECEPTION OF CORRECTIONS TO A USER OR A GROUP OF THEM MAY BE INHIBITED.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9400136A ES2100789B1 (en) | 1993-08-25 | 1993-08-25 | TRANSMISSION OF GPS CORRECTION DATA THROUGH RDS IN THE FM COMMERCIAL NETWORK. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9400136A ES2100789B1 (en) | 1993-08-25 | 1993-08-25 | TRANSMISSION OF GPS CORRECTION DATA THROUGH RDS IN THE FM COMMERCIAL NETWORK. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2100789A1 ES2100789A1 (en) | 1997-06-16 |
ES2100789B1 true ES2100789B1 (en) | 1998-02-16 |
Family
ID=8285022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9400136A Expired - Lifetime ES2100789B1 (en) | 1993-08-25 | 1993-08-25 | TRANSMISSION OF GPS CORRECTION DATA THROUGH RDS IN THE FM COMMERCIAL NETWORK. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2100789B1 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4751512A (en) * | 1986-01-21 | 1988-06-14 | Oceanonics, Inc. | Differential navigation system for remote mobile users |
FR2643529B1 (en) * | 1989-02-22 | 1991-06-07 | Kudelski Sa Fabr Enregistr Nag | PAID TELEVISION SYSTEM USING A MEMORY CARD ASSOCIATED WITH A DECODER |
US5477228A (en) * | 1993-04-13 | 1995-12-19 | Differential Corrections Inc. | Differential global positioning system using radio data system |
-
1993
- 1993-08-25 ES ES9400136A patent/ES2100789B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES2100789A1 (en) | 1997-06-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 19970616 Kind code of ref document: A1 Effective date: 19970616 |
|
FA2A | Application withdrawn |
Effective date: 19980803 |