EP0558918B1 - Récepteur de radiodiffusion pour RDS avec dispositif d'adaptation de volume en mode de réception EON - Google Patents

Récepteur de radiodiffusion pour RDS avec dispositif d'adaptation de volume en mode de réception EON Download PDF

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Publication number
EP0558918B1
EP0558918B1 EP93101260A EP93101260A EP0558918B1 EP 0558918 B1 EP0558918 B1 EP 0558918B1 EP 93101260 A EP93101260 A EP 93101260A EP 93101260 A EP93101260 A EP 93101260A EP 0558918 B1 EP0558918 B1 EP 0558918B1
Authority
EP
European Patent Office
Prior art keywords
volume
microprocessor
radio
program
traffic
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
EP93101260A
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German (de)
English (en)
Other versions
EP0558918A2 (fr
EP0558918A3 (en
Inventor
Heinrich Grundig Emv Max Grundig Fischelmayer
Dieter Dipl.-Ing. Grundig Emv Max Grundig Nohse
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 AG
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Grundig AG
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Publication date
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Application filed by Grundig AG filed Critical Grundig AG
Publication of EP0558918A2 publication Critical patent/EP0558918A2/fr
Publication of EP0558918A3 publication Critical patent/EP0558918A3/de
Application granted granted Critical
Publication of EP0558918B1 publication Critical patent/EP0558918B1/fr
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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
    • H04H20/20—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]

Definitions

  • the invention relates to an RDS radio receiver, in particular to an RDS car radio according to the preamble of claim 1, which is set up to switch automatically in EON reception mode from any radio program to a traffic announcement in another program.
  • DE-C2-35 19 253 describes a radio receiver with a program identification part that reproduces program parts that are specially marked within a program performance, for example traffic reports, weather reports, etc., with a minimum volume that in all cases is equal to or greater than the volume set for the current radio program is.
  • the receiver always remains tuned to the same reception frequency since there is no change to another radio program.
  • EP-A2-0 106 408 A circuit arrangement with similar features is known from EP-A2-0 106 408, which is designed so that when a control signal occurs within a radio transmission, the volume is only raised if it was previously below a predeterminable value.
  • This circuit arrangement is also intended to reproduce specially marked program parts at a minimum volume during an ongoing radio transmission in order to make them clear to the listener. It does not pursue the goal of adjusting the volume when changing programs.
  • Modern-design television and sound broadcasting devices offer the option of storing individually selected volume and sound settings assigned to individual program buttons using a key command. However, automatic volume adjustment when changing channels is not possible with these devices either.
  • GB-A-2 215 927 discloses an RDS receiver with pushbuttons for calling up different programs, in which, assigned to the PI codes of the individual programs, different setting parameters for influencing acoustic reproduction (for example setting volume, sound, etc.) ) can be saved.
  • the publication gives no indication of how, in the case of an automatic program change in EON mode, the volume is adjusted between the continuously received program and the briefly displayed traffic announcement from another program that is not assigned to a program key, is to be carried out automatically without additional setting elements.
  • the radio receiver shown in FIG. 1 is composed in a manner known per se from the synthesizer tuner 1, the IF amplifier 2, the demodulator 3, the stereo decoder 4 for decoding the stereo multiplex signal and the stereo power amplifier 5. From the output of the demodulator 3, the demodulated IF signal is fed to the RDS demodulator 6, which supplies the digital RDS data to the microprocessor 10 for further decoding and evaluation.
  • This forms the central control unit for all manual and automatic operating sequences and also supplies, among other things, the tuning signal for the synthesizer tuner 1.
  • the microprocessor 10 receives its operating commands from the operating part 9, which for simplification only shows the two volume keys 9a, 9b.
  • the microprocessor 10 Due to the manual command via the volume keys 9a, 9b, the microprocessor 10 generates control signals for the electronic actuators 7, 8, which dampen the two LF signals at the input of the stereo amplifier 5 according to their control. Regardless of the control commands of the volume buttons 9a, 9b, the damping of the actuators 7, 8 can also be changed by temporarily stored control data from the microprocessor 10 or the control commands of the volume buttons 9a, 9b in the microprocessor 10 can be converted so that an increase or decrease Damping of the actuators 7, 8 results.
  • the radio receiver receives the information about the reception frequencies relevant to the traffic program with the aid of the RDS signals broadcast in parallel with the radio program currently being received.
  • further control processes e.g. Sound and volume changes in the NF channel can be linked.
  • Fig. 2 shows an example of the control sequence for adjusting the volume when switching automatically to a traffic program in EON reception mode.
  • step S1 the microprocessor 10 first checks in step S1 whether there is EON reception operation and waits in step S2 for the appearance of a TA identifier. As long as both conditions are not met, the program returns to the starting point. If a TA signal is detected in step S2, the microprocessor 10 supplies a tuning signal relevant to a current traffic announcement to the tuner 1 in step S 3 and determines the instantaneous damping value in step S4 A1 of the electronic actuators 7, 8, which was valid for the radio program previously received. Assuming that this is a first-time change to a traffic program, program steps S5 and S6 have no meaning, since no difference value ⁇ A has yet been stored for the volume setting.
  • step S7 is activated. It is different with the repeated change to a traffic program.
  • the volume is corrected by the difference value ⁇ A in step S6.
  • the value ⁇ A can be both positive and negative.
  • the signs introduced in S6 and S13 in the flow diagram of FIG. 2 are only intended to indicate that a volume change made in step S6 is reversed again in step S14.
  • step S7 it is first checked again whether the TA identifier still exists. If so, it is determined in step S8 whether one of the control elements 9a, 9b was operated for the first time after changing to the traffic program to change the volume. As soon as this is the case, via step S9 in step S10 the point in time from which the operating elements 9a, 9b are no longer activated is set by setting a time counter to zero and starting it. The program runs in a loop to record the passage of time the program steps S11 and S12 until the expiry time t 1 is reached. If one of the volume controls 9a, 9b is temporarily operated again in the meantime, the time counting is interrupted and the program returns to step S10.
  • step S15 the newly set damping value A2 of the actuators 7, 8 is detected in program step S15 and checked in step S16 whether the absolute value resulting as the difference between the damping values A1 and A2 is within predefined limits. If this is the case, the difference value ⁇ A is stored in step S 17 and is available for subsequent volume corrections in step S6 or S14. Otherwise, the program returns directly to step S7. Even if no difference value ⁇ A is stored in step S17, the actuation of the volume controls 9a, 9b acts on the current volume, since the actuation of the actuators 7, 8 runs parallel to the information processing in the program described.
  • step S7 the microprocessor 10 delivers a tuning signal in step S13, which tunes the tuner 1 to the radio program originally received, and in step S14 the actuators 7, 8 are attenuated by the difference ⁇ A corrected in the opposite direction to the volume adjustment in step S6.
  • Program change The volume is adjusted automatically, but with every change to a traffic program there is again the possibility to adjust the difference value ⁇ A to the wishes of the device user or the program conditions.
  • a change in the basic volume by actuating the control elements 9a, 9b while the current program is being received and after a difference value ⁇ A has already been stored within the period of a respective traffic announcement has no influence on the automatic volume compensation when changing the program.
  • the same problem of the different volume levels also arises with the transmitter-controlled switchover of a radio receiver to the playback of a traffic announcement while playing a sound carrier recording (e.g. compact cassette or compact disc).
  • the level differences depend on both program-related and signal source-related factors.
  • analogy to the control sequence described above the volume can also be adjusted for this operating case.
  • the difference values ⁇ A for correcting the damping of the actuators 7, 8 are stored in addition to the values obtained in the EON reception mode and are called up according to the operating case.

Landscapes

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

Claims (3)

  1. Récepteur radio commandé par microprocesseur, notamment autoradio, comportant des circuits de réglage électronique (7,8) pour régler le volume sonore, comportant un démodulateur RDS (6) pour l'obtention de données RDS binaires, un dispositif pour réaliser la commutation automatique sur un programme radio concernant le trafic dans le fonctionnement EON et une mémoire pour mémoriser des paramètres de réglage spécifiques au volume acoustique, associés aux codes PI des différentes programmes radio concernant le trafic,
    caractérisé en ce que
    - le microprocesseur (10) identifie la variation brusque de volume, qui apparaît lors de la commutation automatique sur un programme radio concernant le trafic, par le fait qu'il détecte la différence des valeurs d'amortissement des circuits de réglage (7,8), qui apparaît lors du réglage manuel ultérieur, effectué pour la première fois, du volume par l'utilisateur de l'appareil à l'aide des éléments de commande (9a,9b),
    - après la commutation automatique sur un programme radio concernant le trafic, le microprocesseur (10) mémorise automatiquement la différence (ΔA), fixée en dernier lieu, des valeurs d'amortissement des circuits de réglage (7,8), lorsqu'aucune nouvelle instruction de réglage du volume n'apparaît pendant l'intervalle de temps (t1) après la fin de l'actionnement des éléments de commande (9a,9b),
    - lors de chaque changement ultérieur de programme dans le fonctionnement EON, le microprocesseur (10) adapte automatiquement le volume sonore en corrigeant l'amortissement des circuits de réglage (7,8), et ce de la différence (ΔA) mémorisée au préalable,
    - le microprocesseur (10) maintient constante la différence respective (ΔA) des valeurs d'amortissement des circuits de réglage (7,8) pour différents programmes radio concernant le trafic, qui sont reçus dans le fonctionnement EON, également lorsque le volume sonore de base est modifié à l'aide des éléments de commande (9a,9b) pendant la reproduction du programme en cours.
  2. Récepteur radio commandé par microprocesseur selon la revendication 1, caractérisé en ce que
    - le microprocesseur (10) mémorise la différence (ΔA), identifiée en tant qu'adaptation du volume sonore après un passage automatique à un programme radio concernant le trafic dans le fonctionnement EON, des valeurs d'amortissement des circuits de réglage (7,8) uniquement lorsque la valeur de cette différence est située dans des limites prédéterminées,
    - le microprocesseur (10) évalue une variation supplémentaire du volume sonore en tant que correction du réglage de base du volume sonore et ne détecte pas cette variation en tant qu'adaptation du volume sonore.
  3. Récepteur radio commandé par microprocesseur selon la revendication 2,
    caractérisé en ce que le microprocesseur (10) exécute l'adaptation du volume sonore conformément aux caractéristiques des revendications 1 et/ou 2, également dans le cas de la commutation automatique du récepteur radio depuis la reproduction de la porteuse son (par exemple cassette compacte, disque compact, etc.) sur la transmission d'un message radio de trafic.
EP93101260A 1992-02-29 1993-01-28 Récepteur de radiodiffusion pour RDS avec dispositif d'adaptation de volume en mode de réception EON Expired - Lifetime EP0558918B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4206394 1992-02-29
DE4206394A DE4206394C2 (de) 1992-02-29 1992-02-29 RDS-Rundfunkempfänger mit Einrichtung zur Lautstärkeanpassung im EON-Empfangsbetrieb

Publications (3)

Publication Number Publication Date
EP0558918A2 EP0558918A2 (fr) 1993-09-08
EP0558918A3 EP0558918A3 (en) 1993-11-24
EP0558918B1 true EP0558918B1 (fr) 1997-12-03

Family

ID=6452935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93101260A Expired - Lifetime EP0558918B1 (fr) 1992-02-29 1993-01-28 Récepteur de radiodiffusion pour RDS avec dispositif d'adaptation de volume en mode de réception EON

Country Status (2)

Country Link
EP (1) EP0558918B1 (fr)
DE (2) DE4206394C2 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06291692A (ja) * 1993-03-31 1994-10-18 Victor Co Of Japan Ltd Ｆｍラジオ受信機における音場・音質制御装置
DE59611343D1 (de) * 1996-02-17 2006-06-08 Bosch Gmbh Robert Verfahren und Empfänger zur Wiedergabe von empfangenen gesprochenen Meldungen und Verfahren zum Senden von gesprochenen Meldungen
GB2312799B (en) * 1996-04-30 2000-07-19 Sgs Thomson Microelectronics A circuit and method for automatically adjusting the amplitude of broadcast audio signals
AU716509B2 (en) * 1996-09-11 2000-02-24 Robert Bosch Gmbh A sounder control system
AUPO224596A0 (en) 1996-09-11 1996-10-03 Robert Bosch Gmbh A siren control system
DE19705025A1 (de) * 1997-02-10 1998-08-13 Dueren Fisgus Gottfried Steuergerät mit Universalverstärker
DE19809522B4 (de) * 1998-03-05 2007-11-08 Volkswagen Ag Rundfunkempfänger und Verfahren zum Betreiben desselben
DE19830688B4 (de) * 1998-07-09 2009-11-19 Delphi Technologies, Inc., Troy Rundfunkempfänger für ein Fahrzeug
DE19902402A1 (de) * 1999-01-22 2000-08-17 Grundig Ag Rundfunkempfänger für ein Fahrzeug
DE19941017A1 (de) * 1999-08-28 2001-03-01 Volkswagen Ag Verfahren und Einrichtung zum Betrieb einer Audioeinrichtung in einem Kraftfahrzeug
DE10212078B4 (de) * 2002-03-19 2016-02-25 Harman Becker Automotive Systems Gmbh Vorrichtung zur Lautstärkeregelung
EP1432156A1 (fr) * 2002-12-20 2004-06-23 Sony International (Europe) GmbH Procédé de surveillance de signaux de radiodiffusion à fréquences alternatives et dispositif de commande de gain
GB2413906A (en) * 2004-04-21 2005-11-09 Imagination Tech Ltd Radio volume control system
DE102010003306A1 (de) * 2010-03-25 2011-09-29 Bayerische Motoren Werke Aktiengesellschaft Automatische Lautstärkeregelung unter Berücksichtigung verschiedener Audiosignale
DE102011113133B4 (de) * 2011-09-14 2013-04-11 Technisat Digital Gmbh Verfahren zum einstellen der wiedergabelautstärke einer rundfunkempfangseinrichtung
DE102019213321A1 (de) 2019-09-03 2021-03-04 Audi Ag Betreiben eines Funkempfangsgeräts

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3030248A1 (de) * 1980-08-09 1982-03-11 Bayerische Motoren Werke AG, 8000 München Verstaerkungsschaltung fuer nf-verstaerker
DE3238459A1 (de) * 1982-10-16 1984-04-19 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zur lautstaerkestellung
JPS60251724A (ja) * 1984-05-29 1985-12-12 Pioneer Electronic Corp 番組識別受信機
GB2208984B (en) * 1987-08-24 1991-05-29 British Broadcasting Corp Improved radio data system
GB2215927A (en) * 1988-03-16 1989-09-27 British Broadcasting Corp Improvements to RDS radio receivers
JP3034876B2 (ja) * 1988-11-08 2000-04-17 パイオニア株式会社 車載音響装置における自動音量調整装置
DE3919428C1 (fr) * 1989-06-14 1990-09-27 Blaupunkt-Werke Gmbh, 3200 Hildesheim, De

Also Published As

Publication number Publication date
EP0558918A2 (fr) 1993-09-08
DE59307752D1 (de) 1998-01-15
DE4206394A1 (de) 1993-09-16
DE4206394C2 (de) 1994-06-09
EP0558918A3 (en) 1993-11-24

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