EP0364749A2 - Radio receiver - Google Patents

Radio receiver Download PDF

Info

Publication number
EP0364749A2
EP0364749A2 EP89117351A EP89117351A EP0364749A2 EP 0364749 A2 EP0364749 A2 EP 0364749A2 EP 89117351 A EP89117351 A EP 89117351A EP 89117351 A EP89117351 A EP 89117351A EP 0364749 A2 EP0364749 A2 EP 0364749A2
Authority
EP
European Patent Office
Prior art keywords
stage
memory
output
microprocessor
switch
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
Application number
EP89117351A
Other languages
German (de)
French (fr)
Other versions
EP0364749B1 (en
EP0364749A3 (en
Inventor
Wilhelm Hegeler
Helmut Liman
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.)
Blaupunkt Werke GmbH
Original Assignee
Blaupunkt Werke 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6365613&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0364749(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Blaupunkt Werke GmbH filed Critical Blaupunkt Werke GmbH
Publication of EP0364749A2 publication Critical patent/EP0364749A2/en
Publication of EP0364749A3 publication Critical patent/EP0364749A3/en
Application granted granted Critical
Publication of EP0364749B1 publication Critical patent/EP0364749B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • 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
    • H04H60/27—Arrangements for recording or accumulating broadcast information or broadcast-related information
    • 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 subject of property rights belongs to the field of radio receivers with a radio data signal decoder, or RDS decoder for short. This area includes car radios with RDS decoders.
  • the disadvantage of operating car radios is that the range of an VHF carrier frequency radiated to a specific transmitter location via an antenna mast is limited.
  • the field strength of the transmitter signal becomes continuously weaker when the car is traveling longer distances from this transmitter location.
  • the reproduction of the program corresponding to the transmitter signal via a car radio set to receive this carrier frequency is thereby increasingly disturbed.
  • the broadcasts of each broadcaster are transmitted over several carrier frequencies.
  • the transmitter locations for this are distributed over the transmission area of the broadcaster so that the weak reception zones of the one carrier frequency are overlaid by strong reception zones at the carrier frequencies.
  • the entirety of these transmitter locations forms a program chain, and all carrier frequencies together result in the list of alternative frequencies, referred to briefly in the specialist world as the AF list. These alternative frequencies therefore always transmit the same program.
  • the AF list belonging to the set carrier frequency has been transmitted for some time via the radio data signal.
  • This AF list is out gang of the RDS decoder removable and is stored in a suitable memory, which is managed by a microprocessor. This means that the AF list for switching the radio receiver is available in the device if the field strength of the set carrier frequency is too low for interference-free reception.
  • a special form of transmission of the AF lists is described by Mielke in DE-OS 34 48 043.
  • the microprocessor controls the switchover of the car radio to the reception of one of the alternative frequencies stored in the memory. Frequently, this switchover first searches for the frequency that can be received with the greatest field strength.
  • the digital signals that can be taken off at the output of the RDS decoder are even more sensitive to interference than the analog signals with which the programs are transmitted to the carrier frequencies. Since there is basically the task of not storing any faulty digital signals in the memory, sometimes no or only after some time some of the transmitted alternative frequencies get into the memory, even when a program is still worth listening to.
  • the object of the invention was to avoid these disadvantages and to achieve safe and rapid storage of at least a partial list of alternative frequencies.
  • the radio receiver shown in FIG. 1 as a block diagram is connected via an antenna 1 to the electromagnetic alternating field surrounding it.
  • the radio receiver has an input stage 2, which comprises a tunable mixing oscillator 3.
  • the mixing oscillator receives a corresponding control signal from a tuning unit 4.
  • This tuning unit includes a long-term memory 5, in which u. a. alternative frequencies are stored for a longer period.
  • the tuning unit 4 comprises a station search stage 6, in which a search can be started either by reducing the field strength, which triggers a search for the next stored alternative frequency, or by hand using a switch 7.
  • the intermediate frequency to which the carrier frequency modulation has been converted can be removed. This intermediate frequency is fed to the intermediate frequency stage 8.
  • the low-frequency modulation of the transmitter, the MPR signal is available at its output for further processing.
  • the 57 kHz subcarrier, which is modulated with the radio data signal, is filtered out of the MPX signal with the filter 10 and fed to the RDS decoder 11.
  • the actual useful signal is amplified in the NF stage 12 and reproduced via the loudspeaker 13.
  • a measuring stage 9 for the field strength of the set carrier frequency is also connected to the intermediate frequency stage 8. Its output is connected to station search stage 6. If the field strength of the set carrier frequency falls below a predefined threshold value, the next stored alternative frequency is searched for by the station search.
  • the various data available in this system can be removed at certain cycle times.
  • the information about the program chain to which the set carrier frequency is assigned, the PI code (program identification), also belongs to this data.
  • the removal of the respectively desired data from the data stream which leaves the RDS decoder is controlled by a microprocessor 14. This microprocessor opens the individual circuits in the block diagram according to FIG. 1 at the time period provided in the microprocessor operating program, for which predetermined assemblies for exchanging data are then connected to one another.
  • Gate outputs 15, -15 N are connected downstream of the output of the RDS decoder.
  • the gate circuit 15 is connected to an input stage 16 of the long-term memory 5, which comprises a group of memory locations 17, which are provided for storing PI codes.
  • the PI code of the set transmitter is stored in a free memory location. This PI code is contained in the received radio data signal several times more often than the AF lists according to Mielke's proposed transmission.
  • the detection of the PI code is therefore considerably more reliable, even if the reception of the digital data should already be disturbed.
  • a comparison stage 18 which checks whether the received PI code has already been stored in the memory. In this case, the PI code is not saved again.
  • Another input stage 20 of the long-term memory 5 is connected to the output of the tuning unit 4 via a converter 19. Via this converter 19, the control signal which sets the car radio to the received carrier frequency is converted into a data word which corresponds to the data word for this frequency in the list of alternative frequencies.
  • Several chains 21 of AF memory locations are connected to the input stage 20. Each chain 21 is assigned to a storage location 17.
  • the operating program of the microprocessor 14 ensures that the memory chain, which is assigned to the PI code transmitted by the transmitter, is called up in the long-term memory 5 to record the data word offered by the converter 19; that is, the control signal for the carrier frequency taken from the tuning system is stored in the memory chain called.
  • the long-term memory 5 is not deleted by the normal operating program of the microprocessor.
  • the frequency information stored in the memory chains is available in a known manner to the transmitter search stage 6 in a search run triggered by the field strength measuring device 9 via the output stage 22 of the long-term memory.
  • the number of alternative frequencies that can be received at the vehicle location may well be smaller than the actually existing alternative frequencies in the program chain, especially in mountainous areas.
  • a second exemplary embodiment of the invention contains a further development of the previously described circuit for filling in the missing alternative frequencies, which is explained with reference to FIG. 2. With this development, the list of alternative frequencies recorded at the vehicle location can be supplemented by the other alternative frequencies contained in the RDS signal.
  • port 151 at the output of the RDS decoder is assigned to the output of the data which contains the list of alternative frequencies.
  • These data are stored in the free memory locations of the called chain 21 via the input stage 24 controlled by the microprocessor 14.
  • This input stage 24 is followed by a changeover switch 25, to the second input of which the input stage 20 is connected.
  • the changeover switch 25 comprises a comparison stage 26 which compares the alternative frequencies already stored with the alternative frequencies transmitted by the RDS signal and avoids the assignment of memory cells in the chain with the same frequency information.
  • the comparison stage 26 also provides a statement as to whether, in addition to the carrier frequency that has been set, other alternative frequencies are also read in the chain 21 that is being called, ie whether alternative frequencies are available in the long-term memory 5. If this is not the case, a station search is started, which searches for a station with the same PL code. For this purpose, the PI code is entered into the station search stage 6 instead of an alternative frequency via the output stage 23 assigned to the PI memory locations via a switch 27. The output stage 22 for the storage chains 21 is connected to the second input of the switch 27. This circuit is the basis for the following procedure.
  • the output stage 22 assigned to the memory chains 21 does not deliver a signal because the comparison stage 26 can only determine the correspondence between the readable alternative frequencies and the setting of the receiver, then the output signal of the output stage 23 assigned to the PI memory locations is switched through to the transmitter search stage 6 via the switch 27 .
  • the receiver now looks for the next transmitter whose PI code matches the PI code of the previously received transmitter. The correspondence is checked in the comparison stage 18 which, in the event of a match, outputs a stop signal to the station search stage 6.
  • the programming search mentioned can also be switched on continuously during the playing time of a cassette.
  • the switchover of the low-frequency stage 12 to the switching stage 30 which effects cassette reproduction is connected via a changeover switch 28 to the station search stage 6, to the second input of which the switch 7 is connected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

A new radio receiver comprising a radio data signal decoder, a microprocessor and a store for the so-called alternative frequencies (AF lists) is described. The store of this radio receiver has mutually associated storage locations for the programme identification code (PI code) and storage chains for the AF lists. The storage input for the storage locations of the PI code follows the RDS decoder, the storage input for the storage chains is connected to the output of the tuning system. The stores are managed by a microprocessor. After passing through the entire FM band, the currently receivable frequencies which belong to the same programme identification code are stored in the appropriate storage chains in the store. <IMAGE>

Description

Der Gegenstand des Schutzrechts gehört zum Bereich der Rundfunk­empfänger mit einem Radiodatensignaldecoder, kurz RDS-Decoder ge­nannt. Dieser Bereich umfaßt insbesondere Autoradios mit RDS-­Decodern.The subject of property rights belongs to the field of radio receivers with a radio data signal decoder, or RDS decoder for short. This area includes car radios with RDS decoders.

Bei dem Betrieb von Autoradios macht sich nachteilig bemerkbar, daß die Reichweite einer über einen Antennenmast an einen bestimm­ten Senderstandort abgestrahlte UKW-Trägerfrequenz begrenzt ist. Bei längeren Fahrtstrecken des Autos, die von diesem Senderstand­ort wegführen, wird die Feldstärke des Sendersignals ständig schwächer. Die Wiedergabe der dem Sendersignal entsprechenden Sen­dung über ein auf den Empfang dieser Trägerfrequenz eingestelltes Autoradio wird dadurch zunehmend gestört.The disadvantage of operating car radios is that the range of an VHF carrier frequency radiated to a specific transmitter location via an antenna mast is limited. The field strength of the transmitter signal becomes continuously weaker when the car is traveling longer distances from this transmitter location. The reproduction of the program corresponding to the transmitter signal via a car radio set to receive this carrier frequency is thereby increasingly disturbed.

Wegen der begrenzten Reichweite der UKW-Trägerfrequenzen werden die Sendungen jeder Sendeanstalt über mehrere Trägerfrequenzen über­tragen. Die Senderstandorte hierfür sind über das Sendegebiet der Sendeanstalt verteilt so angeordnet, daß die schwachen Empfangs­zonen der einen Trägerfrequenz von starken Empfangszonen an den Trägerfrequenzen überlagert sind. Die Gesamtheit dieser Sender­standorte bildet eine Programmkette, und alle Trägerfrequenzen zusammen ergeben die Liste der Alternativen Frequenzen, in der Fachwelt kurz als AF-Liste bezeichnet. Diese alternativen Frequen­zen übertragen somit immer dasselbe Programm.Because of the limited range of the FM carrier frequencies, the broadcasts of each broadcaster are transmitted over several carrier frequencies. The transmitter locations for this are distributed over the transmission area of the broadcaster so that the weak reception zones of the one carrier frequency are overlaid by strong reception zones at the carrier frequencies. The entirety of these transmitter locations forms a program chain, and all carrier frequencies together result in the list of alternative frequencies, referred to briefly in the specialist world as the AF list. These alternative frequencies therefore always transmit the same program.

Durch die räumliche Verteilung der Senderstandorte ist es möglich, bei zunehmender Störung der Wiedergabe des gehörten Programms auf eine andere, besser empfangbare Trägerfrequenz aus der AF-Liste um­zuschalten. Um dieses Umschalten zu erleichtern, wird seit einiger Zeit über das Radio-Datensignal die zu der eingestellten Träger­frequenz gehörende AF-Liste übertragen. Diese AF-Liste ist am Aus­ gang des RDS-Decoders abnehmbar und wird in einem geeigneten Spei­cher abgelegt, der von einem Mikroprozessor verwaltet wird. Damit steht die AF-Liste zur Umschaltung des Rundfunkempfängers im Gerät zur Verfügung, wenn die Feldstärke der eingestellten Trägerfrequenz für einen störungsfreien Empfang zu gering wird. Eine besondere Form der Übertragung der AF-Listen ist von Mielke in der DE-OS 34 48 043 beschrieben.Due to the spatial distribution of the transmitter locations, it is possible to switch to another, more receivable carrier frequency from the AF list if the playback of the program being listened to increases. In order to facilitate this switching, the AF list belonging to the set carrier frequency has been transmitted for some time via the radio data signal. This AF list is out gang of the RDS decoder removable and is stored in a suitable memory, which is managed by a microprocessor. This means that the AF list for switching the radio receiver is available in the device if the field strength of the set carrier frequency is too low for interference-free reception. A special form of transmission of the AF lists is described by Mielke in DE-OS 34 48 043.

Wenn die Empfangsfeldstärke einen vorgegebenen Schwellwert unter­schreitet, steuert der Mikroprozessor die Umschaltung des Autoradios auf den Empfang einer der in dem Speicher abgelegten alternativen Frequenzen. Häufig wird bei dieser Umschaltung zunächst die Fre­quenz gesucht, die mit der größten Feldstärke empfangen werden kann. Diese Empfänger arbeiten nach dem sogenannten "Best-Station"-Prin­zip, das u. a. in der DE-PS 15 91 144 beschrieben ist.If the received field strength falls below a predetermined threshold value, the microprocessor controls the switchover of the car radio to the reception of one of the alternative frequencies stored in the memory. Frequently, this switchover first searches for the frequency that can be received with the greatest field strength. These receivers work on the so-called "best station" principle, which u. a. is described in DE-PS 15 91 144.

Die am Ausgang des RDS-Decoders abnehmbaren digitalen Signale sind noch störempfindlicher als die analogen Signale, mit denen die Sen­dungen auf den Trägerfrequenzem übertragen werden. Da grundsätzlich die Aufgabe besteht, keine fehlerhaften digitalen Signale in dem Speicher abzulegen, gelangen mitunter keine oder erst nach längerer Ozeit einige der übertragenen alternativen Frequenzen in den Speicher, selbst bei dem Empfang einer durchaus noch hörenswerten Sendung.The digital signals that can be taken off at the output of the RDS decoder are even more sensitive to interference than the analog signals with which the programs are transmitted to the carrier frequencies. Since there is basically the task of not storing any faulty digital signals in the memory, sometimes no or only after some time some of the transmitted alternative frequencies get into the memory, even when a program is still worth listening to.

Der Erfindung lag die Aufgabe zugrunde, diese Nachteile zu vermeiden und zu einer sicheren und schnellen Speicherung wenigstens einer Teil­liste alternativer Frequenzen zu gelangen.The object of the invention was to avoid these disadvantages and to achieve safe and rapid storage of at least a partial list of alternative frequencies.

Die wesentlichen Merkmale eines Rundfunkempfängers, mit dem diese Auf­gabe lösbar ist, sind in dem Anspruch 1 aufgeführt. Anhand von Aus­führungsbeispielen wird die Erfindung näher erläutert. In den Unteran­sprüchen sind die wesentlichen Merkmale vorteilhafter Ausgestaltungen der Erfindung angegeben.The essential features of a radio receiver with which this object can be achieved are listed in claim 1. The invention is explained in more detail using exemplary embodiments. The essential features of advantageous embodiments of the invention are specified in the subclaims.

In den beigefügten Zeichnungen zeigt

  • Figur 1 ein Blockschaltbild eines erfindungsgemäßen
  • Rundfunkempfängers
  • Figur 2 eine Ergänzung des Blockschaltbildes nach Figur 1 gem. eines erweiterten Ausführungs­beispiels der Erfindung
  • Figur 3 eine weitere Ergänzung des Blockschaltbildes nach Figur 1 gem. eines dritten Ausführungs­beispiels der Erfindung.
In the accompanying drawings
  • Figure 1 is a block diagram of an inventive
  • Radio receiver
  • Figure 2 is an addition to the block diagram of Figure 1 acc. an expanded embodiment of the invention
  • Figure 3 shows a further addition to the block diagram of Figure 1 acc. of a third embodiment of the invention.

Der in Figur 1 als Blockschaltbild dargestellte Rundfunkempfänger ist über eine Antenne 1 an das ihn umgebende elektromagnetische Wechselfeld angeschlossen. Der Rundfunkempfänger verfügt über eine Eingangsstufe 2, die einen abstimmbaren Mischoszillator 3 umfaßt. Zur Abstimmung auf die Trägerfrequenz eines bestimmten Senders er­hält der Mischoszillator ein entsprechendes Steuersignal aus einer Abstimmeinheit 4. Zu dieser Abstimmeinheit gehört ein Langzeitspei­cher 5, in dem u. a. alternative Frequenzen längerfristig gespeichert sind. Daneben umfaßt die Abstimmeinheit 4 eine Sendersuchlaufstufe 6, in der ein Suchlauf sowohl durch eine Feldstärkeminderung, die ein Aufsuchen der nächsten gespeicherten alternativen Frequenz auslöst, als auch von Hand mit einem Schalter 7 gestartet werden kann.The radio receiver shown in FIG. 1 as a block diagram is connected via an antenna 1 to the electromagnetic alternating field surrounding it. The radio receiver has an input stage 2, which comprises a tunable mixing oscillator 3. To tune to the carrier frequency of a particular transmitter, the mixing oscillator receives a corresponding control signal from a tuning unit 4. This tuning unit includes a long-term memory 5, in which u. a. alternative frequencies are stored for a longer period. In addition, the tuning unit 4 comprises a station search stage 6, in which a search can be started either by reducing the field strength, which triggers a search for the next stored alternative frequency, or by hand using a switch 7.

Am Ausgang der Eingangsstufe 2 ist die Zwischenfrequenz abnehmbar, auf die die Modulation der Trägerfrequenz umgesetzt worden ist. Diese Zwischenfrequenz wird der Zwischenfrequenzstufe 8 zugeführt. An deren Ausgang steht die niederfrequente Modulation des Senders, das MPR-Signal, zur Weiterverarbeitung der Verfügung. Aus dem MPX-­Signal wird mit dem Filter 10 der 57-kHz-Hilfsträger, der mit dem Radiodatensignal moduliert ist, herausgefiltert und dem RDS-Deco­der 11 zugeführt.At the output of input stage 2, the intermediate frequency to which the carrier frequency modulation has been converted can be removed. This intermediate frequency is fed to the intermediate frequency stage 8. The low-frequency modulation of the transmitter, the MPR signal, is available at its output for further processing. The 57 kHz subcarrier, which is modulated with the radio data signal, is filtered out of the MPX signal with the filter 10 and fed to the RDS decoder 11.

Das eigentliche Nutzsignal, die Sendung der Programmkette, wird in der NF-Stufe 12 verstärkt und über den Lautsprecher 13 wiederge­geben.The actual useful signal, the transmission of the program chain, is amplified in the NF stage 12 and reproduced via the loudspeaker 13.

An die Zwischenfrequenzstufe 8 ist außerdem eine Meßstufe 9 für die Feldstärke der eingestellten Trägerfrequenz angeschlossen. De­ren Ausgang ist mit der Sendersuchlaufstufe 6 verbunden. Unter­schreitet die Feldstärke der eingestellten Trägerfrequenz einen vorgegebenen Schwellwert, so wird die nächste gespeicherte alterna­tive Frequenz durch den Sendersuchlauf aufgesucht.A measuring stage 9 for the field strength of the set carrier frequency is also connected to the intermediate frequency stage 8. Its output is connected to station search stage 6. If the field strength of the set carrier frequency falls below a predefined threshold value, the next stored alternative frequency is searched for by the station search.

An den Ausgängen des RDS-Decoders 11 sind die verschiedenen, in die­sem System verfügbaren Daten zu gewissen Taktzeiten abnehmbar. Neben den bereits erwähnten AF-Listen gehören auch die Informationen über die Programmkette, welcher die eingestellte Trägerfrequenz zuge­ordnet ist, der PI-Code (Programm-Identification), zu diesen Daten. Die Entnahme der jeweils gewünschten Daten aus dem Datenstrom, wel­cher den RDS-Decoder verläßt, wird durch einen Mikroprozessor 14 ge­steuert. Dieser Mikroprozessor öffnet die einzelnen Schaltungen in dem Blockschaltbild gemäß Figur 1 zu dem im Mikroprozessorbetriebs­programm vorgesehenen Zeitdauer, für welche dann vorbestimmte Bau­gruppen zum Austausch von Daten miteinander verbunden sind.At the outputs of the RDS decoder 11, the various data available in this system can be removed at certain cycle times. In addition to the AF lists already mentioned, the information about the program chain to which the set carrier frequency is assigned, the PI code (program identification), also belongs to this data. The removal of the respectively desired data from the data stream which leaves the RDS decoder is controlled by a microprocessor 14. This microprocessor opens the individual circuits in the block diagram according to FIG. 1 at the time period provided in the microprocessor operating program, for which predetermined assemblies for exchanging data are then connected to one another.

Dem Ausgang des RDS-Decoders sind Torschaltungen 15,-15 N nachge­schaltet. Die Torschaltung 15 ist an eine Eingangsstufe 16 des Langzeitspeichers 5 angeschlossen, der eine Gruppe von Speicher­plätzen 17 umfaßt, welche für die Ablage von PI-Codes vorgesehen sind. In einem freien Speicherplatz wird der PI-Code des eingestell­ten Senders abgelegt. Dieser PI-Code ist im empfangenen Radiodaten­signal mehrfach häufiger enthalten als die AF-Listen nach dem Über­tragungsvorschlag von Mielke.Gate outputs 15, -15 N are connected downstream of the output of the RDS decoder. The gate circuit 15 is connected to an input stage 16 of the long-term memory 5, which comprises a group of memory locations 17, which are provided for storing PI codes. The PI code of the set transmitter is stored in a free memory location. This PI code is contained in the received radio data signal several times more often than the AF lists according to Mielke's proposed transmission.

Die Erkennung des PI-Codes ist daher erheblich sicherer, auch wenn der Empfang der digitalen Daten bereits gestört sein sollte. In der Eingangsstufe 16 befindet sich eine Vergleichsstufe 18 die überprüft, ob der empfangene PI-Code bereits im Speicher abgelegt ist. In die­sem Fall erfolgt keine neue Ablage des PI-Codes.The detection of the PI code is therefore considerably more reliable, even if the reception of the digital data should already be disturbed. In the input stage 16 there is a comparison stage 18 which checks whether the received PI code has already been stored in the memory. In this case, the PI code is not saved again.

Eine weitere Eingangsstufe 20 des Langzeitspeichers 5 ist mit dem Ausgang der Abstimmeinheit 4 über einen Wandler 19 verbunden. Über diesen Wandler 19 wird das Steuersignal, welches das Autoradio auf die empfangene Trägerfrequenz einstellt, in ein Datenwort um­gewandelt, das dem Datenwort für diese Frequenz in der Liste alter­nativer Frequenzen entspricht.
An die Eingangsstufe 20 sind mehrere Ketten 21 von AF-Speicher­plätzen angeschlossen. Jede Kette 21 ist jeweils einem Speicher­platz 17 zugeordnet. Das Betriebsprogramm des Mikroprozessors 14 stellt sicher, daß in dem Langzeitspeicher 5 die Speicherkette, die dem vom Sender übermittelten PI-Code zugeordnet ist, zur Aufnahme der vom Wandler 19 angebotenen Datenworts aufgerufen wird; d. h. in der auf gerufenen Speicherkette wird das dem Abstimmsystem entnom­mene Steuersignal für die Trägerfrequenz abgelegt. Wie bereits er­wähnt, wird der Langzeitspeicher 5 durch das normale Betriebspro­gramm des Mikroprozessors nicht gelöscht.Another input stage 20 of the long-term memory 5 is connected to the output of the tuning unit 4 via a converter 19. Via this converter 19, the control signal which sets the car radio to the received carrier frequency is converted into a data word which corresponds to the data word for this frequency in the list of alternative frequencies.
Several chains 21 of AF memory locations are connected to the input stage 20. Each chain 21 is assigned to a storage location 17. The operating program of the microprocessor 14 ensures that the memory chain, which is assigned to the PI code transmitted by the transmitter, is called up in the long-term memory 5 to record the data word offered by the converter 19; that is, the control signal for the carrier frequency taken from the tuning system is stored in the memory chain called. As already mentioned, the long-term memory 5 is not deleted by the normal operating program of the microprocessor.

Die bisher beschriebene Schaltung ist Grundlage für folgendes Ver­fahren. Bei der 1. Inbetriebnahme des Rundfunkgerätes wird über den Schalter 7 ein Programmiersendersuchlauf gestartet. Bei diesem Such­lauf wird jeder empfangene RDS-Sender automatisch aufgesucht und bleibt für eine gewisse Zeitdauer eingestellt, während welcher der Sender mehrfach seinen PI-Code ausstrahlt. Dieser PI-Dode wird in dem einen der freien Speicherplätze 17 eingeschrieben. Während die­ser Zeitdauer wird auch das Ausgangssignal des Wandlers 19 in die dem PI-Code-Speicherplatz zugeordneten Speicherkette 21 eingeschrie­ben. Nach einem ersten Durchlauf des Spektrums hat man schließlich eine am Fahrzeugstandort orientierte Liste alternativer Frequenzen für alle empfangbaren Progammketten gespeichert. Der RDS-Empfänger kann somit alternative Frequenzen aus seiner eigenen Abstimmung kennenlernen.The circuit described so far is the basis for the following procedure. When the radio is put into operation for the first time, a programming station search is started via switch 7. During this search, each RDS station received is automatically searched for and remains set for a certain period of time during which the station repeatedly transmits its PI code. This PI dode is written into one of the free memory locations 17. During this period, the output signal of the converter 19 is also written into the memory chain 21 assigned to the PI code memory location. After a first run of the spectrum you finally have a list of alternative frequencies based on the vehicle location is saved for all receivable program chains. The RDS receiver can thus get to know alternative frequencies from its own tuning.

Die in den Speicherketten gespeicherten Frequenzangaben stehen bei einem vom Feldstärkemeßgerät 9 ausgelösten Suchlauf über die Aus­gangsstufe 22 des Langzeitspeichers in bekannter Weise der Sender­suchlaufstufe 6 zur Verfügung. Die Anzahl der am Fahrzeugstandort empfangbaren alternativen Frequenzen kann durchaus kleiner sein, als die tatsächlich vorhandenen alternativen Frequenzen der Programmket­te, vor allem in bergiger Gegend. Ein zweites Ausführungsbeispiel der Erfindung entält eine Weiterbildung der bisher beschriebenen Schaltung zur Auffüllung der fehlenden alternativen Frequenzen, die anhand der Figur 2 erläutert wird. Mit dieser Weiterbildung kann die am Fahrzeugstandort aufgenommene Liste alternativer Frequenzen durch die im RDS-Signal enthaltenen übrigen alternativen Frequenzen ergänzt werden.The frequency information stored in the memory chains is available in a known manner to the transmitter search stage 6 in a search run triggered by the field strength measuring device 9 via the output stage 22 of the long-term memory. The number of alternative frequencies that can be received at the vehicle location may well be smaller than the actually existing alternative frequencies in the program chain, especially in mountainous areas. A second exemplary embodiment of the invention contains a further development of the previously described circuit for filling in the missing alternative frequencies, which is explained with reference to FIG. 2. With this development, the list of alternative frequencies recorded at the vehicle location can be supplemented by the other alternative frequencies contained in the RDS signal.

Während an dem Tor 15 des RDS-Decoders der PI-Code entnommen wird, ist das Tor 151 am Ausgang des RDS-Decoders der Ausgabe der Daten zugeordnet, die die Liste der alternativen Frequenzen enthält. Die­se Daten werden über die vom Mikroprozessor 14 gesteuerte Eingangs­stufe 24 in den freien Speicherplätzen der aufgerufenen Kette 21 abgelegt. Dieser Eingangsstufe 24 ist ein Umschalter 25 nachgeschal­tet, an dessen zweiten Eingang die Eingangsstufe 20 angeschlossen ist. Der Umschalter 25 umfaßt eine Vergleichsstufe 26, die die be­reits gespeicherten alternativen Frequenzen mit den vom RDS-Signal übermittelten alternativen Frequenzen vergleicht und die Belegung von Speicherzellen in der Kette mit gleichen Frequenzangaben vermei­det.While the PI code is removed from port 15 of the RDS decoder, port 151 at the output of the RDS decoder is assigned to the output of the data which contains the list of alternative frequencies. These data are stored in the free memory locations of the called chain 21 via the input stage 24 controlled by the microprocessor 14. This input stage 24 is followed by a changeover switch 25, to the second input of which the input stage 20 is connected. The changeover switch 25 comprises a comparison stage 26 which compares the alternative frequencies already stored with the alternative frequencies transmitted by the RDS signal and avoids the assignment of memory cells in the chain with the same frequency information.

Wird der eingestellte Sender zu schwach, so daß ein Suchlauf nach einer alternativen Frequenz ausgelöst wird, so kann die anhand der Figur 3 erläuterte Schaltungsvariante das erste Ausführungsbeispiel ergänzen. Die Vergleichsstufe 26 liefert zugleich eine Aussage, ob neben der eingestellten Trägerfrequenz überhaupt noch weitere alter­nativen Frequenzen in der auf gerufenen Kette 21 eingelesen sind, ob also alternative Frequenzen in dem Langzeitspeicher 5 verfügbar sind. Lst dies nicht der Fall, dann wird ein Sendersuchlauf gestar­tet, der nach einem Sender mit gleichem PL-Code sucht. Dazu wird über die den PI-Speicherplätzen zugeordnete Ausgangsstufe 23 über einen Umschalter 27 der PI-Code anstelle einer alternativen Frequenz in die Sendersuchlaufstufe 6 eingegeben. An den zweiten Eingang des Umschalters 27 ist die Ausgangsstufe 22 für die Speicherketten 21 an­geschlossen. Diese Schaltung ist Grundlage für folgendes Verfahren. Liefert die den Speicherketten 21 zugeordnete Ausgangsstufe 22 kein Signal, weil die Vergleichsstufe 26 nur Übereinstimmung zwischen den auslesbaren alternativen Frequenzen und der Einstellung des Empfän­gers feststellen kann, dann wird über den Umschalter 27 das Ausgangs­signal der den PI-Speicherplätzen zugeordneten Ausgangsstufe 23 zur Sendersuchlaufstufe 6 durchgeschaltet. Der Empfänger sucht nunmehr den nächsten Sender auf, dessen PI-Code mit dem PI-Code des zuvor empfangenen Senders übereinstimmt. Die Übereinstimmung wird in der Vergleichsstufe 18 geprüft, die bei Übereinstimmung ein Stopsignal an die Sendersuchlaufstufe 6 gibt.If the tuned transmitter becomes too weak, so that a search for an alternative frequency is triggered, the circuit variant explained with reference to FIG. 3 can supplement the first exemplary embodiment. The comparison stage 26 also provides a statement as to whether, in addition to the carrier frequency that has been set, other alternative frequencies are also read in the chain 21 that is being called, ie whether alternative frequencies are available in the long-term memory 5. If this is not the case, a station search is started, which searches for a station with the same PL code. For this purpose, the PI code is entered into the station search stage 6 instead of an alternative frequency via the output stage 23 assigned to the PI memory locations via a switch 27. The output stage 22 for the storage chains 21 is connected to the second input of the switch 27. This circuit is the basis for the following procedure. If the output stage 22 assigned to the memory chains 21 does not deliver a signal because the comparison stage 26 can only determine the correspondence between the readable alternative frequencies and the setting of the receiver, then the output signal of the output stage 23 assigned to the PI memory locations is switched through to the transmitter search stage 6 via the switch 27 . The receiver now looks for the next transmitter whose PI code matches the PI code of the previously received transmitter. The correspondence is checked in the comparison stage 18 which, in the event of a match, outputs a stop signal to the station search stage 6.

Ist das Autoradio mit einem Cassettenspieler 29 kombiniert, dann kann der erwähnte Prgrammiersuchlauf auch während der Abspielzeit einer Cassette ständig eingeschaltet sein. Dazu ist die Umschaltung der Niederfrequenzstufe 12 auf die Cassettenwiedergabe bewirkende Schaltstufe 30 über einen Umschalter 28 an die Sendersuchlaufstufe 6 angeschlossen, an deren zweiten Eingang der Schalter 7 angeschlossen ist.If the car radio is combined with a cassette player 29, the programming search mentioned can also be switched on continuously during the playing time of a cassette. For this purpose, the switchover of the low-frequency stage 12 to the switching stage 30 which effects cassette reproduction is connected via a changeover switch 28 to the station search stage 6, to the second input of which the switch 7 is connected.

Claims (4)

1. Rundfunkempfänger
mit einem Radiodatensignaldecoder,
einem Mikroprozessor und
einem Speicher für alternative Frequenzen, der ausgangsseitig mit einem Eingang der Abstimmstufe des Rundfunkempfängers über vom Mikroprozessor gesteuerte Torschaltungen verbunden ist,
dadurch gekennzeichnet,
daß der Speicher (5) mehrere Speicherketten (21) für Listen alternativer Frequenzen umfaßt,
daß jeder Speicherkette ein Speicherplatz (17) für den den auf­gelisteten alternativen Frequenzen gemeinsamen PI-Code zuge­ordnet ist,
und daß die Eingangsstufe (16) für die Speicherplätze über eine vom Mikroprozessor (14) gesteuerte Torschaltung (15) mit dem Ausgang des RDS-Decoders (11), die Eingangsstufen (20) für die Speicherketten (21) dagegen über eine vom Mikroprozessor ge­steuerte Torschaltung (19) mit dem Ausgang der Abstimmstufe (4) verbunden ist.1. Radio receiver
with a radio data signal decoder,
a microprocessor and
a memory for alternative frequencies, which is connected on the output side to an input of the tuning stage of the radio receiver via gate circuits controlled by the microprocessor,
characterized,
that the memory (5) comprises a plurality of memory chains (21) for lists of alternative frequencies,
that each memory chain is assigned a memory location (17) for the PI code common to the listed alternative frequencies,
and that the input stage (16) for the memory locations via a gate circuit (15) controlled by the microprocessor (14) with the output of the RDS decoder (11), the input stages (20) for the memory chains (21) on the other hand via one controlled by the microprocessor Gate circuit (19) is connected to the output of the tuning stage (4). 2. Rundfunkempfänger nach Anspruch 1,
dadurch gekennzeichnet,
daß der Eingangsstufe (20) für die Speicherketten (21) ein Umschalter (25) nachgeschaltet ist, dessen zweiter Eingang über eine vom Mikroprozessor gesteuerte Torschaltung (151) mit dem RDS-Decoder-Ausgang für die AF-Listen verbunden ist.2. radio receiver according to claim 1,
characterized,
that the input stage (20) for the memory chains (21) is followed by a switch (25), the second input of which is connected via a gate circuit (151) controlled by the microprocessor to the RDS decoder output for the AF lists. 3. Rundfunkempfänger nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß die Ausgangsstufe (23) für die Speicherplätze (17) über einen Umschalter (27) mit einem Steuereingang der Abstimm­ stufe (4) verbunden ist, welcher bei Durchschaltung der Aus­gangsstufe (23) einen Suchlauf nach einem Sender mit dem aus­gegebenen PI-Code auslöst.3. radio receiver according to claim 1 or 2,
characterized,
that the output stage (23) for the memory locations (17) via a changeover switch (27) with a control input for tuning stage (4) is connected, which triggers a search for a transmitter with the output PI code when switching through the output stage (23). 4. Rundfunkempfänger nach Anspruch 1, 2 oder 3,
dadurch gekennzeichnet,
daß ein Kassettenspieler (29) mit einer Einschaltstufe (30) über einen Umschalter (31) an die NF-Stufe (12) angeschlossen ist
und daß der Ausgang der Einschaltstufe über einen vom Mikro­prozessor gesteuerten Umschalter (28) mit einem Steuereingang der Abstimmstufe (4) verbunden ist, welcher bei Durchschaltung der Einschaltstufe einen Programmierlauf der Sendersuchlauf­stufe (6) über das ganze Senderspektrum auslöst.4. radio receiver according to claim 1, 2 or 3,
characterized,
that a cassette player (29) with a switch-on stage (30) is connected to the low-frequency stage (12) via a switch (31)
and that the output of the switch-on stage is connected via a switch (28) controlled by the microprocessor to a control input of the tuning stage (4), which triggers a programming run of the transmitter search stage (6) over the entire transmitter spectrum when the switch-on stage is switched through.
EP89117351A 1988-10-21 1989-09-20 Radio receiver Revoked EP0364749B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3835870A DE3835870C1 (en) 1988-10-21 1988-10-21
DE3835870 1988-10-21

Publications (3)

Publication Number Publication Date
EP0364749A2 true EP0364749A2 (en) 1990-04-25
EP0364749A3 EP0364749A3 (en) 1991-09-04
EP0364749B1 EP0364749B1 (en) 1995-01-11

Family

ID=6365613

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89117351A Revoked EP0364749B1 (en) 1988-10-21 1989-09-20 Radio receiver

Country Status (5)

Country Link
EP (1) EP0364749B1 (en)
JP (1) JPH02165715A (en)
AT (1) ATE117144T1 (en)
DE (2) DE3835870C1 (en)
ES (1) ES2068864T3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0497116A2 (en) * 1991-02-01 1992-08-05 HENZE, Werner RDS broadcast receiver
EP0558903A1 (en) * 1992-03-02 1993-09-08 Blaupunkt-Werke GmbH Car radio with an RDS decoder
EP0912002A2 (en) * 1997-10-24 1999-04-28 Robert Bosch Gmbh Method for storing broadcast transmission frequency data in a memory of a broadcast receiver
WO2001009858A1 (en) * 1999-07-31 2001-02-08 Robert Bosch Gmbh Method and array for selecting traffic information services that can be received with at least one mobile receiver

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4005413C2 (en) 1990-02-21 1993-12-16 Grundig Emv RDS radio receiver with a facility for the accelerated finding of alternative frequencies
DE4024366C2 (en) * 1990-08-01 1993-12-09 Blaupunkt Werke Gmbh Car radio with a radio data signal decoder
DE4038597A1 (en) * 1990-12-04 1992-06-11 Grundig Emv RDS BROADCAST RECEIVER WITH EXTENDED STORAGE CAPACITY FOR DETECTING ALTERNATIVE FREQUENCIES
DE4103779C2 (en) * 1991-02-08 1995-02-16 Blaupunkt Werke Gmbh RDS radio receiver
DE4135942A1 (en) * 1991-10-31 1993-05-06 Robert Bosch Gmbh, 7000 Stuttgart, De BROADCAST RECEIVER, ESPECIALLY VEHICLE RECEIVER
DE4137000C2 (en) * 1991-11-11 1994-06-09 Opel Adam Ag Method for field strength-dependent evaluation of radio information for vehicles
JPH05344015A (en) * 1992-06-09 1993-12-24 Pioneer Electron Corp Audio equipment including rds receiver
DE19622432C2 (en) * 1996-06-04 1999-05-12 Rundfunkschutzrechte Ev Radio receiver with a station memory

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3432848A1 (en) * 1984-09-07 1986-03-20 Inst Rundfunktechnik Gmbh Method for transmitting digital information and for tuning a mobile radio receiver with the aid of this transmitted digital information
DE3832455A1 (en) * 1988-01-07 1989-07-27 Pioneer Electronic Corp Selection method for received frequencies of an RDS receiver

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3448043C2 (en) * 1984-09-07 1987-01-15 Institut für Rundfunktechnik GmbH, 8000 München Method for transmitting and processing digital information contained in a broadcast signal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3432848A1 (en) * 1984-09-07 1986-03-20 Inst Rundfunktechnik Gmbh Method for transmitting digital information and for tuning a mobile radio receiver with the aid of this transmitted digital information
DE3832455A1 (en) * 1988-01-07 1989-07-27 Pioneer Electronic Corp Selection method for received frequencies of an RDS receiver

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0497116A2 (en) * 1991-02-01 1992-08-05 HENZE, Werner RDS broadcast receiver
EP0497116B1 (en) * 1991-02-01 1996-11-27 HENZE, Werner RDS broadcast receiver
EP0558903A1 (en) * 1992-03-02 1993-09-08 Blaupunkt-Werke GmbH Car radio with an RDS decoder
EP0912002A2 (en) * 1997-10-24 1999-04-28 Robert Bosch Gmbh Method for storing broadcast transmission frequency data in a memory of a broadcast receiver
EP0912002A3 (en) * 1997-10-24 2004-02-18 Robert Bosch Gmbh Method for storing broadcast transmission frequency data in a memory of a broadcast receiver
WO2001009858A1 (en) * 1999-07-31 2001-02-08 Robert Bosch Gmbh Method and array for selecting traffic information services that can be received with at least one mobile receiver
US6535813B1 (en) 1999-07-31 2003-03-18 Robert Bosch Gmbh Method and system for selecting traffic information services receivable by at least one mobile receiver

Also Published As

Publication number Publication date
ES2068864T3 (en) 1995-05-01
JPH02165715A (en) 1990-06-26
EP0364749B1 (en) 1995-01-11
DE3835870C1 (en) 1990-01-18
ATE117144T1 (en) 1995-01-15
EP0364749A3 (en) 1991-09-04
DE58908878D1 (en) 1995-02-23

Similar Documents

Publication Publication Date Title
EP0497116B1 (en) RDS broadcast receiver
DE69114238T2 (en) Procedure for selecting the reception frequency for an RDS receiver.
DE4017756A1 (en) RDS BROADCAST RECEIVER WITH A DEVICE FOR SEARCHING CURRENTLY RECEIVABLE ALTERNATIVE FREQUENCIES
EP0364749B1 (en) Radio receiver
DE3149409C2 (en)
DE2850733C2 (en) Radio receiver, in particular VHF receiver, with a device for direct program selection
DE3144289C2 (en)
EP0415132A2 (en) RDS broadcast receiver with device for automatically switching over to an alternative regional programme
DE69525564T2 (en) Process for the acquisition of PTY burst signals in radio data receivers
EP0433904B1 (en) RDS broadcast receiver with a device for preferential reception of programs with the same country code
DE3104845A1 (en) Broadcast receiver with a tuning unit which can be controlled by a digital data word, and method for controlling this receiver
DE3143468A1 (en) VHF RECEIVER
DE3037196C1 (en) Process for automatic station search for television receivers to receive PAL and SECAM signals
EP0892496B1 (en) Car radio receiver and method for checking and /or updating a stored frequency table of a car radio
DE69020192T2 (en) Method for processing a radio data signal, and receiver for performing this method.
DE69523510T2 (en) RDS receiver using EON information
DE19753715A1 (en) Radio receiver with station memory update
EP0314995B1 (en) Rds receiver
DE69120331T2 (en) Method of choosing a frequency for an RDS receiver
DE3222025C2 (en) Radio receivers for vehicles
DE3844936C2 (en) Method for storing station frequency data in an RDS broadcast receiver
DE4005413C2 (en) RDS radio receiver with a facility for the accelerated finding of alternative frequencies
DE2843215A1 (en) Radio receiver indicates station automatically - by setting frequencies in pairs and comparing received with stored frequencies
DE69010721T2 (en) Method for processing a radio data signal, and receiver for performing this method.
DE3934282C2 (en) RDS receiver

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): AT CH DE ES FR GB IT LI SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH DE ES FR GB IT LI SE

17P Request for examination filed

Effective date: 19920217

17Q First examination report despatched

Effective date: 19931214

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE ES FR GB IT LI SE

REF Corresponds to:

Ref document number: 117144

Country of ref document: AT

Date of ref document: 19950115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 58908878

Country of ref document: DE

Date of ref document: 19950223

ITF It: translation for a ep patent filed
ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950317

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2068864

Country of ref document: ES

Kind code of ref document: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: PIONEER ELECTRONIC CORPORATION

Effective date: 19951011

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: PIONEER ELECTRONIC CORPORATION

Effective date: 19951011

RDAH Patent revoked

Free format text: ORIGINAL CODE: EPIDOS REVO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APAE Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOS REFNO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

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

Ref country code: GB

Payment date: 19990907

Year of fee payment: 11

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

Ref country code: AT

Payment date: 19990923

Year of fee payment: 11

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

Ref country code: SE

Payment date: 19990924

Year of fee payment: 11

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

Ref country code: FR

Payment date: 19990927

Year of fee payment: 11

Ref country code: CH

Payment date: 19990927

Year of fee payment: 11

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

Ref country code: ES

Payment date: 19990928

Year of fee payment: 11

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

Ref country code: DE

Payment date: 19991124

Year of fee payment: 11

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

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

Free format text: STATUS: PATENT REVOKED

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

27W Patent revoked

Effective date: 19991111

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state

Free format text: 991111

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO