EP0844753A2 - Method and means for analysing auxiliary digital information in a broadcast programme - Google Patents

Method and means for analysing auxiliary digital information in a broadcast programme Download PDF

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Publication number
EP0844753A2
EP0844753A2 EP97116443A EP97116443A EP0844753A2 EP 0844753 A2 EP0844753 A2 EP 0844753A2 EP 97116443 A EP97116443 A EP 97116443A EP 97116443 A EP97116443 A EP 97116443A EP 0844753 A2 EP0844753 A2 EP 0844753A2
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EP
European Patent Office
Prior art keywords
program
display
microprocessor
radio
change
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Granted
Application number
EP97116443A
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German (de)
French (fr)
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EP0844753B1 (en
EP0844753A3 (en
Inventor
Detlev Beyer
Helmut Dipl.-Ing. Warnecke
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Volkswagen AG
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Volkswagen AG
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Publication of EP0844753A3 publication Critical patent/EP0844753A3/en
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Publication of EP0844753B1 publication Critical patent/EP0844753B1/en
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    • 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
    • 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
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
    • H04H2201/13—Aspects of broadcast communication characterised by the type of broadcast system radio data system/radio broadcast data system [RDS/RBDS]

Definitions

  • the invention relates to a method and a device for evaluating digital Additional information of a radio program.
  • the radio data system is a data channel with which additional and inaudible digital data be transmitted in parallel with the radio program.
  • Radio receiver with suitable RDS decoders take transmitted RDS data with them in addition to radio reception the same receiver, decrypt the RDS data and play it back.
  • information such as Traffic reports using code words transferred, whereby the location of the event and the event itself are transmitted.
  • traffic reports other RDS user data of any kind such as e.g. Event information will be transmitted.
  • the received RDS data include in addition to the RDS user data, among other things a program identification code PI, which the Sender of the RDS data, and a program service name PS, the one Name for the sender of the RDS data.
  • the program identification includes e.g. 16 bit. This consists of a country code (4-bit), an area code (4-bit) and the actual program recognition (8-bit).
  • the PI code is not for immediate display of the received program on a display, but rather intended for the RDS receiver automatic tuning to another station in the same program chain enable as soon as the reception quality of the set station deteriorates.
  • the PI code is transmitted as the first block in each group.
  • PS code program name
  • RT radio text
  • RDS home receivers can use 64 alphanumeric characters as Be displayed in plain text. For car receivers, however, is one for security reasons Text display not desired.
  • the invention is therefore based on the problem of a method and an apparatus for Perform the procedure to avoid distracting the user becomes.
  • the invention is explained in more detail below on the basis of a preferred exemplary embodiment explained:
  • the single figure shows a flow diagram of the method.
  • the user data received by a receiver are broken down into an audio signal and an RDS signal 1.
  • the RDS signal 1 is transferred to a radio data detector 2, which converts the RDS signal 1 back into a digital signal 3, which is transferred to a microprocessor 4.
  • a query takes place on the microprocessor 4 as to whether the change lock is active. If the interchangeable lock is hard-wired and cannot be switched on, this query is not necessary. If the query shows that the change lock was not transferred from the input unit to the microprocessor 4, the display element 5 is activated by the microprocessor 4 according to the prior art, ie all data 6 selected by the radio transmitter for display on the display element 5 are displayed on the display element 5 .
  • the digital signal 3 is first subjected to a further evaluation before a possible output on the display element 5.
  • the query 8 can be implemented in software by appropriate programming of the microprocessor 4 or by external hardware. If query 8 reveals that the PI code has not changed, the display on display element 5 is maintained by a command 9, ie the previously registered program name from the PS code of an RDS signal 1 is shown on display element 5 .
  • the corresponding new PS code is displayed on the display element 5 by means of a command 10.
  • the microprocessor 4 checks beforehand whether a PS code belonging to the new PI code is stored in a memory element of the radio receiver. If this is the case, the PS code is displayed in the memory element. This avoids that a randomly transmitted advertising information is displayed as a new program name when changing the PI code and remains there until the PI code is changed again. If the change lock is active, the procedure described above is preferably used for all programs which have been stored or which have been newly stored during the operating state, regardless of whether these were stored with or without a change lock.

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

Abstract

The method involves optionally activating a block so that a change in the programme service name can only be adopted for display by changing the programme identifier code. The block is active for all preprogrammed radio programmes and all that are selected whilst the block is active. If the programme identifier code changes, the programme service name from the RDS signal is only adopted for display if there is no stored service name corresponding to the new programme identifier code.

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Auswertung von digitalen Zusatzinformationen eines Rundfunkprogramms.The invention relates to a method and a device for evaluating digital Additional information of a radio program.

Es ist seit langem bekannt, bei der Übertragung von Rundfunkprogrammen Zusatzinformationen mitzuübertragen. In der ersten Zeit wurden analoge Signale nach dem ARI-System übertragen, um z.B. Verkehrsinformationen für Autofahrer bereitzustellen. Nach und nach wurde das ARI-System durch das digitale RDS (Radio-Daten-System) verdrängt.It has been known for a long time, when transmitting radio programs, additional information to transmit. In the early days, analog signals were made using the ARI system transferred to e.g. Provide traffic information for drivers. Bit by bit the ARI system was replaced by the digital RDS (radio data system).

Das Radio-Daten-System ist ein Datenkanal, mit dem zusätzlich und unhörbar digitale Daten parallel zum Rundfunkprogramm übertragen werden. Rundfunkempfänger mit geeigneten RDS-Decodem nehmen übermittelte RDS-Daten zusätzlich zum Rundfunkempfang mit demselben Empfangsteil auf, entschlüsseln die RDS-Daten und geben diese wieder. Über den RDS-Datenkanal werden Informationen, wie z.B. Verkehrsmeldungen, mittels Codeworten übertragen, wobei der Ort des Geschehens und das Geschehen selbst übertragen werden. Anstelle von Verkehrsmeldungen können auch andere RDS-Nutzdaten jeglicher Art wie z.B. Veranstaltungshinweise übertragen werden. Die empfangenen RDS-Daten beinhalten neben den RDS-Nutzdaten unter anderem ein Programmidentifizierungscode PI, der den Sender der RDS-Daten bezeichnet, und einen Programmdienstnamen PS, der eine Bezeichnung für den Sender der RDS-Daten darstellt.The radio data system is a data channel with which additional and inaudible digital data be transmitted in parallel with the radio program. Radio receiver with suitable RDS decoders take transmitted RDS data with them in addition to radio reception the same receiver, decrypt the RDS data and play it back. over the RDS data channel, information such as Traffic reports using code words transferred, whereby the location of the event and the event itself are transmitted. Instead of traffic reports, other RDS user data of any kind such as e.g. Event information will be transmitted. The received RDS data include in addition to the RDS user data, among other things a program identification code PI, which the Sender of the RDS data, and a program service name PS, the one Name for the sender of the RDS data.

In dem Fachartikel "Datenübertragung im UKW-Rundfunk; F. Stollenwerk, Elektronik 7 / 31.3.1988" ist das Funktionsprinzip von RDS beschrieben. Dabei wird auf der Senderseite dem Stereo- Multiplexsignal das RDS-Signal hinzugefügt und anschließend beide Signale frequenzmoduliert. Die RDS-Daten werden in Blöcke unterteilte Gruppen übertragen, wobei jede Gruppe in vier Blöcke unterteilt ist. Die Programmidentifikation (PI-Code) umfaßt z.B. 16 Bit. Diese besteht aus einer Länderkennung (4-Bit), einer Gebietskennung (4-Bit) und der eigentlichen Programmerkennung (8-Bit). Der PI-Code ist nicht zur unmittelbaren Anzeige des empfangenen Programms auf einem Display gedacht, sondern soll vielmehr dem RDS-Empfänger die automatische Abstimmung auf einen anderen Sender derselben Programmkette ermöglichen, sobald die Empfangsqualität des eingestellten Senders sich verschlechtert. Wenn ein anderer Sender mit dem gleichen PI-Code besser empfangen wird, erfolgt ein Frequenzwechsel. Damit die Zeit zum Auffinden einer interaktiven Frequenz nicht zu lange dauert, wird der PI-Code in jeder Gruppe als erster Block übertragen. Neben dem PI-Code stellt RDS noch weitere Informationen zur Verfügung. So wird zur Ausgabe auf dem Display der Programmname (PS-Code) übertragen, der aus acht alphanumerischen Zeichen bestehen kann. Zusätzlich kann neben Verkehrsinformationen auch ein Radiotext (RT) zur programmbegleitenden Information übertragen werden (z.B. Titel von Musikstücken). In entsprechend ausgestatteten RDS-Heimempfängern können 64 alphanumerische Zeichen als Klartext dargestellt werden. Bei Autoempfängern ist dagegen aus Sicherheitsgründen eine Textanzeige nicht erwünscht.In the technical article "Data transmission in FM radio; F. Stollenwerk, electronics 7 / 31.3.1988 "the functional principle of RDS is described. It is on the transmitter side added the RDS signal to the stereo multiplex signal and then both signals frequency modulated. The RDS data is transmitted in groups divided into blocks, whereby each group is divided into four blocks. The program identification (PI code) includes e.g. 16 bit. This consists of a country code (4-bit), an area code (4-bit) and the actual program recognition (8-bit). The PI code is not for immediate display of the received program on a display, but rather intended for the RDS receiver automatic tuning to another station in the same program chain enable as soon as the reception quality of the set station deteriorates. If another transmitter with the same PI code is received better, a will occur Frequency change. So that the time to find an interactive frequency is not too long the PI code is transmitted as the first block in each group. In addition to the PI code provides RDS with additional information. This is how it is output on the display the program name (PS code), which consists of eight alphanumeric characters can. In addition to traffic information, a radio text (RT) can also be used to accompany the program Information is transmitted (e.g. titles of pieces of music). In accordingly equipped RDS home receivers can use 64 alphanumeric characters as Be displayed in plain text. For car receivers, however, is one for security reasons Text display not desired.

Allerdings verwenden in jüngster Zeit immer mehr Rundfunkstationen den PS-Code für Werbezwecke. Anstatt des eingestellten Programmnamens erscheint somit auf dem Display eine alphanumerische Werbeanzeige. Dieser ständige Wechsel der Anzeige am Display führt zu störenden Beeinflussung des Betrachters, so daß insbesondere Autofahrer vom Verkehrsgeschehen abgelenkt werden.However, more and more radio stations have recently been using the PS code for advertising purposes. Instead of the set program name, a appears on the display alphanumeric advertisement. This constant change of the indication on the display leads to disturbing influencing of the viewer, so that in particular motorists from the traffic situation get distracted.

Der Erfindung liegt daher das Problem zugrunde, ein Verfahren und eine Vorrichtung zur Durchführung des Verfahrens zu schaffen, bei dem eine Ablenkung des Benutzers vermieden wird.The invention is therefore based on the problem of a method and an apparatus for Perform the procedure to avoid distracting the user becomes.

Die Lösung des Problems ergibt sich durch die Merkmale der Patentansprüche 1 und 3. Durch die Zuschaltung der Wechselsperre wird die Anzeige am Anzeigeelement nur geändert, wenn sich auch der Programmidentifizierungscode ändert, so daß störende Werbeinformationen im Programmdienstnamen PS ignoriert werden. Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.The solution to the problem results from the features of claims 1 and 3. By activating the exchange lock, the display on the display element is only changed, if the program identification code also changes, so that annoying advertising information be ignored in the program service name PS. Further advantageous configurations the invention emerge from the subclaims.

Die Erfindung wird nachfolgend anhand eines bevorzugten Ausführungsbeispiels näher erläutert: Die einzige Figur zeigt ein Flußdiagramm des Verfahrens.The invention is explained in more detail below on the basis of a preferred exemplary embodiment explained: The single figure shows a flow diagram of the method.

Die von einem Empfänger empfangenen Nutzdaten werden in ein Audiosignal und in ein RDS-Signal 1 zerlegt. Das RDS-Signal 1 wird an einen Radio-Daten-Detektor 2 übergeben, der das RDS-Signal 1 wieder in ein digitales Signal 3 wandelt, das an einen Mikroprozessor 4 übergeben wird. Am Mikroprozessor 4 findet eine Abfrage statt, ob die Wechselsperre aktiv ist. Ist die Wechselsperre fest verdrahtet und nicht wahlweise zuschaltbar, so entfällt diese Abfrage. Ergibt die Abfrage, daß die Wechselsperre von der Eingabeeinheit nicht an den Mikroprozessor 4 übergeben wurde, so wird das Anzeigeelement 5 vom Mikroprozessor 4 gemäß dem Stand der Technik angesteuert, d.h. alle vom Rundfunksender zur Anzeige am Anzeigeelement 5 ausgewähltem Daten 6 werden am Anzeigeelement 5 dargestellt. Ergibt die Abfrage der Wechsel sperre, daß diese durch die Eingabeeinheit aktiviert wurde, so wird das digitale Signal 3 vor einer möglichen Ausgabe auf dem Anzeigeelement 5 zunächst einer weiteren Auswertung unterzogen. Mittels eines Steuerbefehls 7 findet eine Abfrage 8 statt, ob sich der PI-Code im Vergleich zum letzten digitalen Signal 3 geändert hat (Pi (n-1) = Pi (n) ?). Da der PI-Code immer als erster Block einer jeden Gruppe übertragen wird, kann diese Abfrage bei jedem neuen RDS-Signal 1 erfolgen. Die Abfrage 8 kann softwaremäßig durch entsprechende Programmierung des Mikroprozessors 4 oder durch eine externe Hardware realisiert werden. Ergibt die Abfrage 8, daß sich der PI-Code nicht geändert hat, so wird durch einen Befehl 9 die Anzeige am Anzeigeelement 5 aufrechterhalten, d. h. der zuvor einmal registrierte Programmname aus dem PS-Code eines RDS-Signals 1 ist auf dem Anzeigeelement 5 dargestellt. Ergibt die Abfrage 8, daß sich der PI-Code geändert hat, so wird auf dem Anzeigeelement 5 der entsprechende neue PS-Code mittels eines Befehls 10 dargestellt. Dabei überprüft der Mikroprozessor 4 zuvor, ob ein zum neuen PI-Code zugehöriger PS-Code in einem Speicherelement des Rundfunkempfängers abgelegt ist. Ist dies der Fall, so wird der PS-Code im Speicherelement zur Anzeige gebracht. Dadurch wird vermieden, daß eine zufällig übertragene Werbeinformation beim Wechsel des PI-Codes als neuer Programmname zur Anzeige gebracht wird und dort solange stehen bleibt, bis eine erneute Änderung des PI-Codes auftritt. Ist die Wechselsperre aktiv, so findet die zuvor beschriebene Prozedur vorzugsweise für alle eingespeicherten bzw. während des Betriebszustandes neu eingespeicherten Programme Anwendung, unabhängig davon ob diese mit oder ohne Wechselsperre abgespeichert wurden.The user data received by a receiver are broken down into an audio signal and an RDS signal 1. The RDS signal 1 is transferred to a radio data detector 2, which converts the RDS signal 1 back into a digital signal 3, which is transferred to a microprocessor 4. A query takes place on the microprocessor 4 as to whether the change lock is active. If the interchangeable lock is hard-wired and cannot be switched on, this query is not necessary. If the query shows that the change lock was not transferred from the input unit to the microprocessor 4, the display element 5 is activated by the microprocessor 4 according to the prior art, ie all data 6 selected by the radio transmitter for display on the display element 5 are displayed on the display element 5 . If the query of the change lock reveals that it was activated by the input unit, the digital signal 3 is first subjected to a further evaluation before a possible output on the display element 5. A control command 7 is used to query 8 whether the PI code has changed in comparison to the last digital signal 3 (Pi (n-1) = Pi (n) ?) . Since the PI code is always transmitted as the first block of each group, this request can be made with every new RDS signal 1. The query 8 can be implemented in software by appropriate programming of the microprocessor 4 or by external hardware. If query 8 reveals that the PI code has not changed, the display on display element 5 is maintained by a command 9, ie the previously registered program name from the PS code of an RDS signal 1 is shown on display element 5 . If query 8 shows that the PI code has changed, the corresponding new PS code is displayed on the display element 5 by means of a command 10. The microprocessor 4 checks beforehand whether a PS code belonging to the new PI code is stored in a memory element of the radio receiver. If this is the case, the PS code is displayed in the memory element. This avoids that a randomly transmitted advertising information is displayed as a new program name when changing the PI code and remains there until the PI code is changed again. If the change lock is active, the procedure described above is preferably used for all programs which have been stored or which have been newly stored during the operating state, regardless of whether these were stored with or without a change lock.

Claims (4)

Verfahren zur Auswertung von digitalen Zusatzinformationen eines Rundfunkprogramms, insbesondere von RDS-Daten,
dadurch gekennzeichnet, daß
wahlweise eine Wechselsperre zugeschaltet wird, so daß eine Änderung des Programmdienstnamens PS nur bei einer Änderung des Programmidentifizierungscodes PI zur Anzeige übernommen wird.Method for evaluating additional digital information from a radio program, in particular RDS data,
characterized in that
alternatively a change lock is activated so that a change in the program service name PS is only accepted for display when the program identification code PI changes. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Wechselsperre für alle vorprogrammierten und während der Wechselsperre programmierten Rundfunkprogramme aktiv ist.A method according to claim 1, characterized in that the exchange lock for everyone pre-programmed radio programs programmed during the exchange lock is active. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß bei einer Änderung des Programmidentifizierungscodes PI der Programmdienstname PS aus dem RDS-Signal (1) nur zur Anzeige übernommen wird, falls zum neuen Programmidentifizierungscode PI kein entsprechender Programmdienstname PS im Rundfunkempfänger abgespeichert ist, der sonst zur Anzeige übernommen wird.Method according to claim 1 or 2, characterized in that in the event of a change the program identification code PI the program service name PS from the RDS signal (1) is only accepted for display if the new program identification code PI no corresponding program service name PS is stored in the radio receiver which is otherwise adopted for display. Vorrichtung zur Auswertung von digitalen Zusatzinformationen eines Rundfunkprogramms, umfassend einen Rundfunkempfänger, einen mit dem Rundfunkempfänger verbundenen Mikroprozessor, ein vom Mikroprozessor ansteuerbares Anzeigeelement, ein mit dem Mikroprozessor bidirektoral verbundenes Speicherelement und eine den Mikroprozessor ansteuernde Eingabeeinheit,
dadurch gekennzeichnet, daß
dem Mikroprozessor (4) fest oder wahlweise zuschaltbar eine Wechselsperre zugeordnet ist, so daß eine Änderung des Programmdienstnamens PS nur bei einer Änderung des Programmidentifizierungscodes PI am Anzeigeelement (5) anzeigbar ist.Device for evaluating additional digital information of a radio program, comprising a radio receiver, a microprocessor connected to the radio receiver, a display element which can be controlled by the microprocessor, a memory element connected bidirectorally to the microprocessor and an input unit which controls the microprocessor,
characterized in that
a change lock is assigned to the microprocessor (4) either permanently or selectively so that a change in the program service name PS can only be displayed on the display element (5) if the program identification code PI changes.
EP19970116443 1996-11-22 1997-09-22 Method and means for analysing auxiliary digital information in a broadcast programme Expired - Lifetime EP0844753B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19648377 1996-11-22
DE19648377 1996-11-22

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EP0844753A2 true EP0844753A2 (en) 1998-05-27
EP0844753A3 EP0844753A3 (en) 2004-01-14
EP0844753B1 EP0844753B1 (en) 2013-04-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0946009A2 (en) * 1998-03-27 1999-09-29 BECKER GmbH Radio Data System receiver and method of processing Programme Service (PS) code data

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6444630A (en) * 1987-08-12 1989-02-17 Pioneer Electronic Corp Rds receiver
EP0495136A2 (en) * 1991-01-15 1992-07-22 Pioneer Electronic Corporation Method of transmitting data in RDS broadcasting
EP0725503A1 (en) * 1995-02-03 1996-08-07 Robert Bosch Gmbh Method for receiving and outputting broadcast programmes with supplementary digital information and broadcast receiver for displaying digital information of other broadcast programmes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6444630A (en) * 1987-08-12 1989-02-17 Pioneer Electronic Corp Rds receiver
EP0495136A2 (en) * 1991-01-15 1992-07-22 Pioneer Electronic Corporation Method of transmitting data in RDS broadcasting
EP0725503A1 (en) * 1995-02-03 1996-08-07 Robert Bosch Gmbh Method for receiving and outputting broadcast programmes with supplementary digital information and broadcast receiver for displaying digital information of other broadcast programmes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0946009A2 (en) * 1998-03-27 1999-09-29 BECKER GmbH Radio Data System receiver and method of processing Programme Service (PS) code data
EP0946009A3 (en) * 1998-03-27 2004-01-14 BECKER GmbH Radio Data System receiver and method of processing Programme Service (PS) code data

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EP0844753B1 (en) 2013-04-24
EP0844753A3 (en) 2004-01-14

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