EP0443436B1 - Procédé d'appel sélectif d'un programme de radiodiffusion - Google Patents

Procédé d'appel sélectif d'un programme de radiodiffusion Download PDF

Info

Publication number
EP0443436B1
EP0443436B1 EP91102078A EP91102078A EP0443436B1 EP 0443436 B1 EP0443436 B1 EP 0443436B1 EP 91102078 A EP91102078 A EP 91102078A EP 91102078 A EP91102078 A EP 91102078A EP 0443436 B1 EP0443436 B1 EP 0443436B1
Authority
EP
European Patent Office
Prior art keywords
programme
frequency
tuned
reception quality
frequencies
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
EP91102078A
Other languages
German (de)
English (en)
Other versions
EP0443436A2 (fr
EP0443436A3 (en
Inventor
Gottfried Grundig E.M.V. Max Grundig Kagerbauer
Mathias Grundig E.M.V. Max Grundig Kalmer
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.)
Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
Original Assignee
Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
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 Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH filed Critical Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
Publication of EP0443436A2 publication Critical patent/EP0443436A2/fr
Publication of EP0443436A3 publication Critical patent/EP0443436A3/de
Application granted granted Critical
Publication of EP0443436B1 publication Critical patent/EP0443436B1/fr
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
    • H04H20/20—Arrangements for broadcast or distribution of identical information via plural systems
    • H04H20/22—Arrangements for broadcast of identical information via plural broadcast systems
    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
    • H04H60/37—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying segments of broadcast information, e.g. scenes or extracting programme ID

Definitions

  • the invention relates to a method for calling a radio program in mobile radio receivers that can receive and process information according to the radio data system (RDS) and have storage options for storing data relating to the reception frequency and RDS data.
  • RDS radio data system
  • the radio data system transmits data in VHF radio, which transmits information to the listener in addition to the broadcast radio program. This additional information should serve the listener to facilitate the voting process. For this purpose, data are transmitted which indicate the program name so that the listener does not have to listen for a certain time or look up a frequency table to know which program he has set.
  • the broadcasting of an AF list offers great advantages for reception in car radios. This list contains broadcast frequencies on which the same program is broadcast as on the currently set frequency.
  • a PI code which is a code for identifying the program, is also broadcast.
  • a PI code is assigned to each program so that this code can be checked determine whether the same program is received again when the tuning frequency changes.
  • German patent application DE-A-37 25 487 a method is described which relates to the evaluation of the information transmitted with the radio data system.
  • the AF code and / or the PI code are evaluated, so that it is determined at which alternative transmission frequencies the program signal of the current reception frequency can still be received.
  • the alternative transmission frequencies are determined by evaluating the AF code and the PI code, which are then briefly tuned and checked for reception quality. The frequency with the best reception quality is then set. A method is described below which specifies the acquisition of criteria for determining the reception quality. The recipient is then tuned according to the quality of reception.
  • German patent application DE-A-38 32 455 describes a method with which the change from a frequency of a program to a more receivable frequency of the same program is to be carried out if the reception quality on the first frequency is no longer sufficient to to process the RDS data. The change takes place while waiting for an interruption a traffic announcement announcement code is reported.
  • the applicant's patent application EP-A-0 415 132 describes an RDS radio receiver which, when checking the alternative frequencies which are stored in a memory or are contained in the received RDS data, also takes into account those whose regional identification, i.e. second digit of the PI code, differs from that just received if no transmitter with the same PI code can be received. In this way, if a regional program chain is lost, a switch is made to another program in a national program chain if one moves from one regional area to another.
  • each frequency is assigned a rank which is dependent on the identity of the PI code and the reception quality.
  • the reception quality the RDS quality (error-free code recognition) and the RF reception quality, such as multi-path reception, reception field strength and transmitter center, are checked. If no frequency with sufficient RDS quality is found, i.e. If the error rate in the decoding of the RDS data exceeds a permissible limit, the frequency with the highest field strength is set, provided that it is concluded from the RF reception quality that the hearing quality is sufficient.
  • the frequency set in this way remains set for a predeterminable time. A search for the same program chain is only started if there is no RDS identification during this time.
  • the data belonging to the program are combined into one when a program is called RAM loaded.
  • the PI code, the alternative frequencies and the station name are then in the working memory.
  • all stored frequencies are evaluated, the evaluation being based on the RF reception quality and possible RDS decoding.
  • Each frequency is briefly tuned for evaluation.
  • the PI code and the RF quality, in particular the reception field strength, are checked, and the alternative frequency is stored in the working memory with the evaluation of the rank.
  • the next frequency is checked in the same way, the ranking being compared with the last or the best frequency to date.
  • the best frequency is given an identifier, which is required for later tuning, and is stored in the working memory.
  • the working memory is divided into several areas according to the ranking when storing the checked frequencies. Within each area, the frequencies stored there are sorted according to RF reception quality.
  • the ranking levels are arranged in such a way that the highest rank is assigned to the match of the PI code of the program called and the frequency checked.
  • the next stage comprises the frequency whose PI code differs in the second digit.
  • the field-strongest frequency of this ranking level is set when all alternative frequencies that are stored in the working memory are checked and all are checked no frequency with the same PI code was found.
  • a frequency of the last rank has been set, it remains set for a predetermined time, for example 20 seconds. During this time, an attempt is made to identify the PI code. If this is not successful, a search is started.
  • the station name is shown in the display when a program is called up by an RDS receiver, in an advantageous embodiment of the invention, when a frequency is set without PI code identification after a predetermined time, the set frequency is displayed instead of the station name, since under some circumstances a different one Program can be set as that assigned to the program memory location.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)

Claims (4)

  1. Procédé pour appeler un programme de radiodiffusion dans des récepteurs radio mobiles, qui peuvent recevoir et traiter des informations conformément au système radio - transmission de données RDS , et qui disposent d'une mémoire non volatile pour la mémorisation de données, qui concernent le programme et des données RDS, et qui disposent d'une mémoire de travail, dans laquelle les données associées au programme sont transmises à partir de la mémoire non volatile, lors d'un appel de programme, et dans lesquelles, lors d'un appel du programme, les fréquences de remplacement, mémorisées dans la mémoire de travail, sont contrôlées et évaluées en ce qui concerne la qualité de réception, caractérisé en ce que lors du réglage de l'une des fréquences de réception appelées à partir de la mémoire de travail, on procède selon la séquence suivante :
    a) on règle la fréquence possédant la meilleure qualité de réception et qui possède le code désiré d'identification de programme, qui a été transféré au préalable à partir de la mémoire de programme;
    b) on règle la fréquence possédant la meilleure qualité de réception, dont le code d'identification de programme diffère uniquement au niveau de la seconde position, lorsque lors du pas a), le code désiré d'identification de programme n'a été identifié pour aucune des fréquences mémorisées dans la mémoire de travail et dont la qualité de réception est suffisante;
    c) la fréquence fournissant la meilleure qualité de réception HF et avec le signal RDS, dont la présence est identifiée, mais tout d'abord sans identification de programme, reste réglée pendant un intervalle de temps prédéterminé lorsque, lors des étapes a) et b), aucun code identique d'identification de programme ou un code d'identification de programme, qui diffère uniquement au niveau de la seconde position, n'a été identifié pour aucune fréquence contrôlée;
    d) au bout de l'intervalle de temps prédéterminé, un cycle de recherche de la chaîne désirée de programme est déclenché lorsque, lors de l'étape c), aucune identification de programme n'a été possible pendant un intervalle de temps prédéterminé.
  2. Procédé selon la revendication 1, caractérisé en ce que lors du réglage de la fréquence sans identification de programme pendant un intervalle de temps prédéterminé, le nom de l'émission est effacé sur l'affichage, et à cet effet, la fréquence réglée est affichée.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que dans le cas du contrôle et de l'évaluation de toutes les fréquences de remplacement, les fréquences contrôlées sont triées par groupes en fonction de leurs séquences ordonnées et en étant rangées dans la mémoire de travail en fonction de la qualité de réception.
  4. Procédé selon une ou plusieurs des revendications 1 à 3, caractérisé en ce que lors du réglage d'une fréquence de réception, pour laquelle aucun code PI n'est identifié, on règle une fréquence, pour laquelle le fait que des signaux de données RDS sont émis, est identifié.
EP91102078A 1990-02-19 1991-02-14 Procédé d'appel sélectif d'un programme de radiodiffusion Expired - Lifetime EP0443436B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4004987 1990-02-19
DE4004987A DE4004987A1 (de) 1990-02-19 1990-02-19 Verfahren zum stationsabruf in rds-empfangsgeraeten

Publications (3)

Publication Number Publication Date
EP0443436A2 EP0443436A2 (fr) 1991-08-28
EP0443436A3 EP0443436A3 (en) 1992-04-15
EP0443436B1 true EP0443436B1 (fr) 1995-06-14

Family

ID=6400382

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91102078A Expired - Lifetime EP0443436B1 (fr) 1990-02-19 1991-02-14 Procédé d'appel sélectif d'un programme de radiodiffusion

Country Status (2)

Country Link
EP (1) EP0443436B1 (fr)
DE (2) DE4004987A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4128265A1 (de) * 1991-08-26 1993-03-04 Bosch Siemens Hausgeraete Verfahren und vorrichtung zur programmsteuerung in fernsehgeraeten
DE4231121C1 (de) * 1992-09-17 1994-01-05 Grundig Emv RDS-Rundfunkempfänger mit Anordnung zum knackfreien Umschalten auf alternative Frequenzen
EP0599330B1 (fr) * 1992-11-27 1996-06-26 CLARION Co., Ltd. Récepteur RDS
JPH0758598A (ja) * 1993-08-10 1995-03-03 Pioneer Electron Corp チャンネルプリセット機能を有するｒｄｓ受信機
DE19630578C2 (de) * 1996-07-30 2002-05-08 Bosch Gmbh Robert Rundfunkempfänger
DE19742494A1 (de) * 1997-09-26 1999-04-01 Bosch Gmbh Robert Verfahren zur schnellen optimalen AF-Auswahl
DE10049018B4 (de) * 2000-10-04 2004-04-01 Siemens Ag Betriebsverfahren für ein Empfangsgerät
US7373123B2 (en) 2004-02-27 2008-05-13 Harman International Industries, Incorporated Multiple tuners in a single radio receiver

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3034155C2 (de) * 1980-09-11 1985-10-10 Becker Autoradiowerk Gmbh, 7516 Karlsbad Verfahren und Schaltungsanordnung zum Abstimmen eines Rundfunkempfängers
DE3439264A1 (de) * 1984-10-26 1986-04-30 Blaupunkt-Werke Gmbh, 3200 Hildesheim Verfahren zur identifikation von rundfunksendern und rundfunkgeraet hierfuer
DE3725487C2 (de) * 1987-07-31 1995-04-20 Irt Invent Res Tech Ag Verfahren zum empfangsseitigen Auswerten einer innerhalb eines Rundfunksignals übertragenen digitalen Information
JP2571247B2 (ja) * 1988-01-07 1997-01-16 パイオニア株式会社 ラジオデータ受信機における受信周波数選択方法
JP2760552B2 (ja) * 1988-03-17 1998-06-04 三洋電機株式会社 受信機
DE3928828A1 (de) * 1989-08-31 1991-03-07 Grundig Emv Rds-rundfunkempfaenger mit einer einrichtung zum automatischen wechsel auf ein alternatives regionalprogramm

Also Published As

Publication number Publication date
EP0443436A2 (fr) 1991-08-28
DE4004987C2 (fr) 1993-04-29
DE59105680D1 (de) 1995-07-20
EP0443436A3 (en) 1992-04-15
DE4004987A1 (de) 1991-08-22

Similar Documents

Publication Publication Date Title
EP0459360B1 (fr) Récepteur radio avec RDS muni d'un dispositif pour la recherche de fréquences alternatives recevables en temps réel
DE60019502T2 (de) Verfahren zur verarbeitung von auf sender und program bezogenen daten in einem fm rds-empfänger
DE68918460T2 (de) Modifiziertes rds-funksystem.
EP0502500A1 (fr) Méthode pour l'accord d'un récepteur radio, utilisant des information RDS
DE3448043C2 (de) Verfahren zum Übertragen und Verarbeiten einer in einem Rundfunksignal enthaltenen digitalen Information
EP0443436B1 (fr) Procédé d'appel sélectif d'un programme de radiodiffusion
EP0415132B1 (fr) Récepteur de radiodiffusion avec RDS muni d'un dispositif de commutation automatique sur un programme régional alternatif
EP0233967B1 (fr) Procédé pour transmettre une information numérique ainsi que pour accorder un récepteur radio mobile à l'aide des informations numériques ainsi transmises
DE2850733A1 (de) Rundfunkempfaenger, insbesondere ukw- empfaenger, mit einer einrichtung zur programm-direktwahl
EP0403744A2 (fr) Récepteur de radiodiffusion équipé du RDS avec augmentation empirique du contenu de ses mémoires de programme
DE19539750C2 (de) Verfahren zur Synchronisation eines Rundfunkempfängers und nach diesem Verfahren arbeitender Rundfunkempfänger
EP0150297B1 (fr) Procédé pour l'identification d'émetteurs radio et appareil radio à cette fin
EP0433904B1 (fr) Récepteur de radiodiffusion RDS pourvu d'un dispositif de réception préférentielle de programmes ayant le même indicatif national
DE3825812C2 (fr)
DE69020192T2 (de) Verfahren zum Verarbeiten eines Rundfunkdatensignals, sowie Empfänger zum Durchführen dieses Verfahrens.
DE4005413C2 (de) RDS-Rundfunkempfänger mit einer Einrichtung zum beschleunigten Auffinden alternativer Frequenzen
DE3148085C2 (fr)
DE3825886C2 (de) Radiodatensystem-Rundfunkempfänger
DE69010721T2 (de) Verfahren zum Verarbeiten eines Rundfunkdatensignals, sowie Empfänger zum Durchführen dieses Verfahrens.
EP0905929B1 (fr) Méthode pour la sélection optimale et rapide de fréquences alternatives dans un récepteur RDS
DE4425194B4 (de) Verfahren und Vorrichtung zur Bestimmung des Standortes eines Rundfunkempfängers
EP0862814B1 (fr) Procede de selection d'une frequence emettrice
EP0847622B1 (fr) Procede de memorisation de donnees d'une frequence porteuse recue d'un emetteur de radiodiffusion
EP0912002A2 (fr) Méthode pour stocker des données de fréquences d'émission dans une mémoire d'un récepteur de radiodiffusion
DE3506161A1 (de) Verfahren zur identifikation von rundfunksendern

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19920921

17Q First examination report despatched

Effective date: 19941122

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: GRUNDIG E.M.V. ELEKTRO-MECHANISCHE VERSUCHSANSTALT

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950612

REF Corresponds to:

Ref document number: 59105680

Country of ref document: DE

Date of ref document: 19950720

ET Fr: translation filed
ITF It: translation for a ep patent filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20100223

Year of fee payment: 20

Ref country code: IT

Payment date: 20100218

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20100226

Year of fee payment: 20

Ref country code: GB

Payment date: 20100202

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59105680

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20110213

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20110213

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20110214