EP1079557A2 - Verfahren für die Datenübertragung, zur Übertragung von Radiodatensignalen über amplitudenmodulierten Runkfunksendern - Google Patents
Verfahren für die Datenübertragung, zur Übertragung von Radiodatensignalen über amplitudenmodulierten Runkfunksendern Download PDFInfo
- Publication number
- EP1079557A2 EP1079557A2 EP00115703A EP00115703A EP1079557A2 EP 1079557 A2 EP1079557 A2 EP 1079557A2 EP 00115703 A EP00115703 A EP 00115703A EP 00115703 A EP00115703 A EP 00115703A EP 1079557 A2 EP1079557 A2 EP 1079557A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- rds
- transmitter
- data
- transmission
- modulation
- 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
Links
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
- H04H20/36—Arrangements for simultaneous broadcast of plural pieces of information for AM broadcasts
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H2201/00—Aspects of broadcast communication
- H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
- H04H2201/13—Aspects of broadcast communication characterised by the type of broadcast system radio data system/radio broadcast data system [RDS/RBDS]
Definitions
- the invention relates to a method for transmitting data using the RDS for amplitude-modulated radio stations.
- the RDS transmission method and the RDS transmission protocol in FM as double sideband modulation of a Subcarrier within the multiplex signal and in the LW range in the form of Phase modulation of a carrier used.
- the phase information of a carrier in the case of the stereo pilot's FM used to set the phase reference for to win a coherent demodulator.
- the invention has for its object a data transmission system at the outset to create the type that uses a sideband of an AM transmitter to a sideband to transmit the RDS signal.
- the spectral range required for this is usually available because the corresponding frequencies in the past for 2-sideband transmission were coordinated, but audio providers switched to ESB to have.
- RDS can be used with analogue broadcasting stations in the LMK range.
- the output signal is one with data fed standard RDS encoder via an HP / TP filter to a standard ESB modulator given.
- the audio signal from the program provider is added via a second given standard ESB modulator, the modulated output signal being additive is merged with the broadcast band of the audio modulation. With the sum signal the power stage / transmitter output stage of a standard AM transmitter is controlled.
- the system outlined thereby stands out positively from the well-known AMDS from the fact that the carrier performance, which is absolutely necessary with the AMDS, is saved in order to to transport the information (AMDS see Technical Report B 138/93 of 11/23/1993, Institute for Broadcasting Technology (IRT) Kunststoff).
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
Abstract
Description
- die vorhandene Frequenzressource genutzt wird und
- keine eigene Senderinfrastruktur für die Anwendung des Verfahrens erforderlich wird.
- AM
- Amplitudenmodulation
- AMDS
- AM Datensystem
- ESB
- Einseitenband
- FM
- Frequenzmodulation
- HP
- Hochpaß
- LW
- Langwelle
- LMK
- Lang-,Mittel-,Kurzwelle
- RDS
- Radio Data System
- TP
- Tiefpaß
- UKW
- Ultrakurzwelle
Claims (6)
- Verfahren zur Übertragung von Daten, insbesondere bei amplitudenmodulierten Rundfunksendern, dadurch gekennzeichnet, daß die zu übertragenen Daten als Ausgangssignal eines RDS-Koders über einen HP/TP Filter geführt als Modulation eines ESB-Modulators verwendet und das resultierende Sendeband wahlweise als unteres oder oberes Seitenband eines Rundfunksenders mit Trägerunterdrückung abgestrahlt wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das nicht benutzte Seitenband dasjenige ist, das bestandsmäßig für die Audiomodulation des Senders verwendet wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß ein Seitenband eines AM-Senders benutzt wird, der nicht weiter moduliert wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß beide Seitenbänder eines nicht anderweitig genutzten Senders für die Datenübertragung benutzt werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß anstelle eines Senders ein leitergebundenes Übertragungssystem genutzt wird.
- Verfahren zur Übertragung von Daten, insbesondere bei amplitudenmodulierten Rundfunksendern, dadurch gekennzeichnet, daß die zu übertragenen Daten als Ausgangssignal eines RDS-Koders über einen HP/TP Filter geführt als Modulation eines ESB-Modulators verwendet und das resultierende Sendeband als unteres oder oberes Seitenband zusätzlich und unabhängig zum Informationsinhalt des in der Phase modulierten Trägers eines Rundfunksenders übertragen wird, wobei bekannte, marktübliche RDS-Demodulatoren unverändert verwendet werden können.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19941161A DE19941161A1 (de) | 1999-08-24 | 1999-08-24 | Verfahren zur Übertragung von Daten, insbesondere bei amplitudenmodulierten Rundfunksendern |
DE19941161 | 1999-08-24 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1079557A2 true EP1079557A2 (de) | 2001-02-28 |
EP1079557A3 EP1079557A3 (de) | 2005-07-20 |
EP1079557B1 EP1079557B1 (de) | 2006-10-11 |
Family
ID=7920124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00115703A Expired - Lifetime EP1079557B1 (de) | 1999-08-24 | 2000-07-21 | Verfahren für die Datenübertragung, zur Übertragung von Radiodatensignalen über amplitudenmodulierten Runkfunksendern |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1079557B1 (de) |
AT (1) | ATE342618T1 (de) |
DE (2) | DE19941161A1 (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4688255A (en) * | 1984-05-29 | 1987-08-18 | Kahn Leonard R | Compatible AM broadcast/data transmisison system |
US4955072A (en) * | 1988-09-15 | 1990-09-04 | Asea Brown Boveri Ltd | Method of generating an amplitude-modulated ISB transmission signal and apparatus for carrying out the method |
DE19602715A1 (de) * | 1995-02-09 | 1996-08-29 | Deutsche Telekom Ag | Verfahren zur Übertragung von Daten |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4039673C1 (de) * | 1990-12-12 | 1992-05-14 | Institut Fuer Rundfunktechnik Gmbh, 8000 Muenchen, De | |
DE19605381C2 (de) * | 1995-06-28 | 2001-05-23 | Deutsche Telekom Ag | Modulationsverfahren und -Schaltungsanordnung zur Übertragung von Datensignalen |
-
1999
- 1999-08-24 DE DE19941161A patent/DE19941161A1/de not_active Withdrawn
-
2000
- 2000-07-21 AT AT00115703T patent/ATE342618T1/de not_active IP Right Cessation
- 2000-07-21 DE DE50013594T patent/DE50013594D1/de not_active Expired - Lifetime
- 2000-07-21 EP EP00115703A patent/EP1079557B1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4688255A (en) * | 1984-05-29 | 1987-08-18 | Kahn Leonard R | Compatible AM broadcast/data transmisison system |
US4955072A (en) * | 1988-09-15 | 1990-09-04 | Asea Brown Boveri Ltd | Method of generating an amplitude-modulated ISB transmission signal and apparatus for carrying out the method |
DE19602715A1 (de) * | 1995-02-09 | 1996-08-29 | Deutsche Telekom Ag | Verfahren zur Übertragung von Daten |
Also Published As
Publication number | Publication date |
---|---|
EP1079557B1 (de) | 2006-10-11 |
EP1079557A3 (de) | 2005-07-20 |
DE50013594D1 (de) | 2006-11-23 |
DE19941161A1 (de) | 2001-03-01 |
ATE342618T1 (de) | 2006-11-15 |
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