EP1079557A2 - Méthode pour la transmission de données, pour transmettre des signaux RDS utilisant des émetteurs de radiodiffusion à modulation d'amplitude - Google Patents

Méthode pour la transmission de données, pour transmettre des signaux RDS utilisant des émetteurs de radiodiffusion à modulation d'amplitude Download PDF

Info

Publication number: EP1079557A2
Authority: EP; European Patent Office
Prior art keywords: transmitter; rds; modulation; sideband; transmission
Prior art date: 1999-08-24
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

EP00115703A

Other languages

German (de)

English (en)

Other versions

EP1079557A3 (fr

EP1079557B1 (fr

Inventor

Jürgen Althoff

Jörg Leber

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.)

Deutsche Telekom AG

Original Assignee

Deutsche Telekom AG

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.)

1999-08-24

Filing date

2000-07-21

Publication date

2001-02-28

2000-07-21 Application filed by Deutsche Telekom AG filed Critical Deutsche Telekom AG

2001-02-28 Publication of EP1079557A2 publication Critical patent/EP1079557A2/fr

2005-07-20 Publication of EP1079557A3 publication Critical patent/EP1079557A3/fr

2006-10-11 Application granted granted Critical

2006-10-11 Publication of EP1079557B1 publication Critical patent/EP1079557B1/fr

2020-07-21 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 12
230000005540 biological transmission Effects 0.000 claims abstract description 16
230000001629 suppression Effects 0.000 claims abstract 2
239000004020 conductor Substances 0.000 claims 1
238000005516 engineering process Methods 0.000 description 2
239000000654 additive Substances 0.000 description 1
230000000996 additive effect Effects 0.000 description 1
230000001427 coherent effect Effects 0.000 description 1
238000005265 energy consumption Methods 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
230000005236 sound signal Effects 0.000 description 1
230000003595 spectral effect Effects 0.000 description 1

Images

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)

EP00115703A 1999-08-24 2000-07-21 Méthode pour la transmission de données, pour transmettre des signaux RDS utilisant des émetteurs de radiodiffusion à modulation d'amplitude Expired - Lifetime EP1079557B1 (fr)

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 (fr)	2001-02-28
EP1079557A3 EP1079557A3 (fr)	2005-07-20
EP1079557B1 EP1079557B1 (fr)	2006-10-11

Family

ID=7920124

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP00115703A Expired - Lifetime EP1079557B1 (fr)	1999-08-24	2000-07-21	Méthode pour la transmission de données, pour transmettre des signaux RDS utilisant des émetteurs de radiodiffusion à modulation d'amplitude

Country Status (3)

Country	Link
EP (1)	EP1079557B1 (fr)
AT (1)	ATE342618T1 (fr)
DE (2)	DE19941161A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
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
CH675802A5 (fr) *	1988-09-15	1990-10-31	Asea Brown Boveri
DE4039673C1 (fr) *	1990-12-12	1992-05-14	Institut Fuer Rundfunktechnik Gmbh, 8000 Muenchen, De
DE19602715A1 (de) *	1995-02-09	1996-08-29	Deutsche Telekom Ag	Verfahren zur Übertragung von Daten
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 EP EP00115703A patent/EP1079557B1/fr not_active Expired - Lifetime
- 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

Also Published As

Publication number	Publication date
EP1079557A3 (fr)	2005-07-20
EP1079557B1 (fr)	2006-10-11
DE19941161A1 (de)	2001-03-01
DE50013594D1 (de)	2006-11-23
ATE342618T1 (de)	2006-11-15

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