EP0994589A2 - Receiver for receiving Digital Audio Broadcast (DAB) programmes - Google Patents

Receiver for receiving Digital Audio Broadcast (DAB) programmes Download PDF

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Publication number
EP0994589A2
EP0994589A2 EP99114655A EP99114655A EP0994589A2 EP 0994589 A2 EP0994589 A2 EP 0994589A2 EP 99114655 A EP99114655 A EP 99114655A EP 99114655 A EP99114655 A EP 99114655A EP 0994589 A2 EP0994589 A2 EP 0994589A2
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EP
European Patent Office
Prior art keywords
ensemble
receiver
receiver according
ensembles
entry
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
EP99114655A
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German (de)
French (fr)
Other versions
EP0994589A3 (en
EP0994589B1 (en
Inventor
Heiner Schepers
Arnd Wendland
Maik Scholz
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.)
Robert Bosch GmbH
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Robert Bosch GmbH
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Publication date
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Publication of EP0994589A2 publication Critical patent/EP0994589A2/en
Publication of EP0994589A3 publication Critical patent/EP0994589A3/en
Application granted granted Critical
Publication of EP0994589B1 publication Critical patent/EP0994589B1/en
Anticipated expiration legal-status Critical
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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
    • H04H60/38—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 broadcast time or space
    • H04H60/41—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 broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast 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
    • H04H2201/20—Aspects of broadcast communication characterised by the type of broadcast system digital audio broadcasting [DAB]

Definitions

  • the invention relates to a receiver for digital radio (DAB).
  • DAB digital radio
  • DAB digital radio
  • the object of the present invention is a To provide ease of use in that the Finding a receivable ensemble takes less time takes.
  • This object is achieved with the invention Receiver solved in that features of each received ensembles into a stored in a memory Table are entered and that by an operation an entry is retrieved from the table and the recipient clicks on Reception of the associated ensemble is set. Suitable features can vary depending on the requirements be interpreted differently; for example, the Central frequency serve as such a feature. To not same ensembles on several central frequencies sent to save multiple times is at the Invention particularly advantageous if the Ensemble identifier (EId) and the central frequency as Feature of an ensemble can be saved.
  • EId Ensemble identifier
  • the receiver according to the invention is thus gradually filed a number of ensembles that the respective User has received so that it is because of the essential lower number a choice among these very quickly can make, for example, by pressing a Press the one that is next stored in the table Ensemble is set (up and down) or an ensemble can be specifically selected.
  • a further development of the invention enables further entries in the table, about the ensembles previously received go out, in that the received ensemble furthermore characteristics of other ensembles (OE) taken and into the Be entered in the table.
  • Training should be designed such that when adding an ensemble in the memory of the table content new is sorted and / or that when the capacity of the Table an entry with the lowest actuality deleted becomes.
  • the output signal of a decoder 3 supplied becomes.
  • This in turn has an output that is via an NF amplifier 4 with speakers 5 (the simplicity only one speaker was shown) is.
  • signals from the decoder 3 become a controller 6 fed, which the entire signal processing sequence in Receiver controls. This includes the Processing inputs on the keyboard 7 and the Presentation of information on a display 8.
  • the controller 6 is also connected to a memory 9, in which, among other things, the list according to the invention the ensemble is discarded.
  • the controller 6 connected to a control input of the receiving part 2 in order to adjust this to the desired ensemble.
  • the flow chart (Fig. 1) gives that part of the program in controller 6 (FIG. 3) again, which is used for generation or Serves to update the table.
  • an ensemble is selected by the user that he wants to receive.
  • the program part 13 Ensemble information EI read out and at 14 a data record formed, the ensemble identifier (EId) and the Frequency f of the respective ensemble contains.
  • EId ensemble identifier
  • the Frequency f of the respective ensemble contains.
  • the flow chart shown in Fig. 2 illustrates the Select one of the saved ensembles, whereby in Fig. 2 only the associated frequencies are specified.
  • an entry follows that the ensemble following in the list should be set. Then it is checked at 23 whether the current frequency is fx ⁇ fm. If so, will at 24 x increased by 1 and at 25 the frequency f (x + 1) set. However, if the frequency fm has already been reached is set to 0 at 26 x.

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

Abstract

The receiver has a memory in which characteristics of each ensemble, or set of adjacent orthogonal bearers, received is entered in a table. The receiver is set up by calling up an entry from the table during a control process and setting up the receiver to receive the associated ensemble.

Description

Die Erfindung betrifft einen Empfänger für digitalen Hörfunk (DAB).The invention relates to a receiver for digital radio (DAB).

Beim digitalen Hörfunk (DAB) werden Ensembles gebildet, die Programme und Datendienste enthalten und jeweils eine Einheit bilden, die vom Empfänger empfangen und verarbeitet wird. Die Ensembles bestehen aus einem Satz von nahe beieinanderliegenden orthogonalen Trägern.In digital radio (DAB) ensembles are formed that Programs and data services contain one each Form a unit that is received and processed by the recipient becomes. The ensembles consist of a set of close adjacent orthogonal beams.

Wie beim herkömmlichen Rundfunk können Ensembles über einen Frequenzsuchlauf eingestellt werden. Jedoch ist beim DAB ein solcher Suchlauf sehr langsam, da die Überprüfung der einzelnen Sendefrequenzen relativ viel Zeit in Anspruch nimmt.As with conventional broadcasting, ensembles can use one Frequency search can be set. However, the DAB is a such search very slow since checking the individual transmission frequencies take a relatively long time takes.

Aufgabe der vorliegenden Erfindung ist es, eine Bedienungserleichterung dahingehend zu schaffen, daß die Suche eines empfangbaren Ensembles weniger Zeit in Anspruch nimmt. Diese Aufgabe wird bei dem erfindungsgemäßen Empfänger dadurch gelöst, daß Merkmale von jeweils empfangenen Ensembles in eine in einem Speicher abgelegte Tabelle eingetragen werden und daß durch einen Bedienvorgang ein Eintrag aus der Tabelle abgerufen und der Empfänger auf Empfang des zugehörigen Ensembles eingestellt wird. Geeignete Merkmale können je nach Anforderungen im einzelnen verschieden ausgelegt sein; so kann beispielsweise die Zentralfrequenz als ein solches Merkmal dienen. Um nicht gleiche Ensembles, die auf mehreren Zentralfrequenzen gesendet werden, mehrmals zu speichern, ist bei der Erfindung besonders vorteilhaft, wenn der Ensemble-Identifizierer (EId) und die Zentralfrequenz als Merkmal jeweils eines Ensembles gespeichert werden.The object of the present invention is a To provide ease of use in that the Finding a receivable ensemble takes less time takes. This object is achieved with the invention Receiver solved in that features of each received ensembles into a stored in a memory Table are entered and that by an operation an entry is retrieved from the table and the recipient clicks on Reception of the associated ensemble is set. Suitable features can vary depending on the requirements be interpreted differently; for example, the Central frequency serve as such a feature. To not same ensembles on several central frequencies sent to save multiple times is at the Invention particularly advantageous if the Ensemble identifier (EId) and the central frequency as Feature of an ensemble can be saved.

Bei dem erfindungsgemäßen Empfänger wird somit nach und nach eine Anzahl von Ensembles abgelegt, die der jeweilige Benutzer empfangen hat, so daß er wegen der wesentlich geringeren Zahl eine Auswahl unter diesen sehr schnell vornehmen kann, beispielsweise indem durch Betätigung einer Taste jeweils das in der Tabelle als nächstes abgelegte Ensemble eingestellt wird (aufwärts wie abwärts) oder gezielt ein Ensemble ausgewählt werden kann.The receiver according to the invention is thus gradually filed a number of ensembles that the respective User has received so that it is because of the essential lower number a choice among these very quickly can make, for example, by pressing a Press the one that is next stored in the table Ensemble is set (up and down) or an ensemble can be specifically selected.

Eine Weiterbildung der Erfindung ermöglicht weitere Einträge in der Tabelle, die über die zuvor empfangenen Ensembles hinausgehen, dadurch, daß dem jeweils empfangenen Ensemble ferner Merkmale anderer Ensembles (OE) entnommen und in die Tabelle eingetragen werden.A further development of the invention enables further entries in the table, about the ensembles previously received go out, in that the received ensemble furthermore characteristics of other ensembles (OE) taken and into the Be entered in the table.

Um zu verhindern, daß die Tabelle mit vor langer Zeit einmal eingetragenen Ensembles gefüllt wird und eine Speicherung aktueller Ensembles nicht mehr möglich wird, ist gemäß einer anderen Weiterbildung vorgesehen, daß den in die Tabelle eingetragenen Merkmalen Indikatoren beigegeben werden, welche die Aktualität widerspiegeln. Vorzugsweise kann diese Weiterbildung derart ausgebildet sein, daß bei Hinzufügen eines Ensembles in den Speicher der Tabelleninhalt neu sortiert wird und/oder daß bei Erreichen der Kapazität der Tabelle ein Eintrag mit der niedrigsten Aktualität gelöscht wird.To prevent the table from using a long time ago registered ensembles is filled and a storage current ensemble is no longer possible, according to one other training provided that in the table registered characteristics indicators are added, which reflect the topicality. This can preferably Training should be designed such that when adding an ensemble in the memory of the table content new is sorted and / or that when the capacity of the Table an entry with the lowest actuality deleted becomes.

Um für die Auswahl von Ensembles aus der Tabelle möglichst nur diejenigen bereit zu halten, die noch aktuell sind, ist bei einer anderen Weiterbildung vorgesehen, daß ein Eintrag, dessen Indikator einen minimalen Wert unterschreitet, gelöscht wird.In order for the selection of ensembles from the table as possible to keep only those who are still up to date In another development, it is provided that an entry whose indicator falls below a minimum value, is deleted.

Ausführungsbeispiele der Erfindung sind in der Zeichnung anhand mehrerer Figuren dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigt:

Fig. 1
ein Ablaufdiagramm beim Eintragen eines Ensembles in die Tabelle,
Fig. 2
ein Ablaufdiagramm zur Auswahl eines Ensembles aus der Tabelle und
Fig. 3
ein Blockschaltbild eines erfindungsgemäßen Empfängers.
Exemplary embodiments of the invention are shown in the drawing using several figures and are explained in more detail in the following description. It shows:
Fig. 1
a flowchart when entering an ensemble in the table,
Fig. 2
a flow chart for selecting an ensemble from the table and
Fig. 3
a block diagram of a receiver according to the invention.

Bei dem in Fig. 3 dargestellten Empfänger werden die über eine Antenne 1 empfangenen Signale einem Empfangsteil 2 zugeleitet, dessen Ausgangssignal einem Decoder 3 zugeführt wird. Dieser weist wiederum einen Ausgang auf, der über einen NF-Verstärker 4 mit Lausprechern 5 (der Einfachheit halber wurde nur ein Lautsprecher dargestellt) verbunden ist. Außerdem werden Signale des Decoders 3 einem Controller 6 zugeleitet, der den gesamten Signalverarbeitungsablauf im Empfänger steuert. Dazu gehört unter anderem die Verarbeitung von Eingaben an der Tastatur 7 und die Darstellung von Informationen auf einem Display 8. In the receiver shown in Fig. 3, the over an antenna 1 received signals a receiving part 2 fed, the output signal of a decoder 3 supplied becomes. This in turn has an output that is via an NF amplifier 4 with speakers 5 (the simplicity only one speaker was shown) is. In addition, signals from the decoder 3 become a controller 6 fed, which the entire signal processing sequence in Receiver controls. This includes the Processing inputs on the keyboard 7 and the Presentation of information on a display 8.

Der Controller 6 ist ferner mit einem Speicher 9 verbunden, in dem unter anderem in erfindungsgemäßer Weise die Liste der Ensembles abgelegt wird. Außerdem ist der Controller 6 an einen Steuereingang des Epfangsteils 2 angeschlossen, um dieses auf das jeweils gewünschte Ensemble einzustellen.The controller 6 is also connected to a memory 9, in which, among other things, the list according to the invention the ensemble is discarded. In addition, the controller 6 connected to a control input of the receiving part 2 in order to adjust this to the desired ensemble.

Das Flußdiagramm (Fig. 1) gibt denjenigen Teil des Programms im Controller 6 (Fig. 3) wieder, der zur Erzeugung bzw. Aktualisierung der Tabelle dient. Nach einem Start 11 des Programms wird bei 12 ein Ensemble vom Benutzer gewählt, das er empfangen möchte. Daraufhin wird im Programmteil 13 die Ensemble-Information EI ausgelesen und bei 14 ein Datensatz gebildet, der den Ensemble-Identifizierer (EId) und die Frequenz f des jeweiligen Ensembles enthält. Bei der oben erwähnten Weiterbildung der Erfindung können aus der Ensemble Information bei 13 auch Identifizierer anderer Ensembles ausgelesen werden, so daß dann bei 14 mehrere Datensätze anfallen.The flow chart (Fig. 1) gives that part of the program in controller 6 (FIG. 3) again, which is used for generation or Serves to update the table. After a start 11 of the Program at 12 an ensemble is selected by the user that he wants to receive. Then in the program part 13 Ensemble information EI read out and at 14 a data record formed, the ensemble identifier (EId) and the Frequency f of the respective ensemble contains. At the above mentioned development of the invention can from the Ensemble information at 13 also identifies others Ensembles are read out, so that at 14 then several Records arise.

Bei 15 wird geprüft, ob ein gleicher Datensatz bereits im Speicher vorhanden ist. Ist dieses der Fall, erfolgt bei 16 eine Umsortierung der m Tabelleneinträge anhand eines Indikators I, der die Aktualität kennzeichnet und zusammen mit jedem neuen Eintrag abgelegt wird. Danach werden bei 17 einer oder mehrere Einträge, die eine Mindestaktualität Imin unterschreiten, gelöscht und das Programm bei 18 beendet.At 15 it is checked whether the same data record is already in the Memory is available. If this is the case, 16 takes place a reordering of the m table entries based on a Indicator I, which marks the topicality and together is filed with each new entry. Then at 17 one or more entries that have a minimum actuality Imin fall below, deleted and the program ended at 18.

Ist jedoch bei 16 ein Eintrag, der dem bei 14 erzeugten Datensatz gleicht, noch nicht vorhanden, wird bei 19 geprüft, ob die Zahl der Einträge m noch kleiner als die Zahl k der maximalen möglichen Einträge ist, ob also noch ein Speicherplatz frei ist. Ist dieses der Fall, wird bei 20 der Datensatz, bestehend aus EId und f, zusammen mit einem Standard-Indikator Is in die Tabelle eingetragen. Wenn bei 19 festgestellt wird, daß die Tabelle bereits gefüllt ist, wird bei 21 der Datensatz mit dem kleinsten Indikator gelöscht und dann erst bei 20 ein neuer Datensatz eingetragen.However, at 16 there is an entry that is generated at 14 Data record is the same, does not yet exist, will be at 19 checked whether the number of entries m is even smaller than that Number k of the maximum possible entries is, whether still a storage space is free. If this is the case, at 20 the data set, consisting of EId and f, together with a Standard indicator Is entered in the table. If at 19 it is determined that the table is already filled, becomes the record with the smallest indicator at 21 deleted and then only at 20 a new record registered.

Der in Fig. 2 dargestellte Ablaufplan veranschaulicht die Wahl eines der gespeicherten Ensembles, wobei in Fig. 2 lediglich die zugehörigen Frequenzen angegeben sind. Bei 22 folgt eine Eingabe, daß das in der Liste folgende Ensemble eingestellt werden soll. Daraufhin wird bei 23 geprüft, ob die aktuelle Frequenz fx < fm ist. Ist dieses der Fall, wird bei 24 x um 1 erhöht und bei 25 die Frequenz f(x+1) eingestellt. Ist jedoch bereits die Frequenz fm erreicht, so wird bei 26 x auf 0 gesetzt.The flow chart shown in Fig. 2 illustrates the Select one of the saved ensembles, whereby in Fig. 2 only the associated frequencies are specified. At 22 an entry follows that the ensemble following in the list should be set. Then it is checked at 23 whether the current frequency is fx <fm. If so, will at 24 x increased by 1 and at 25 the frequency f (x + 1) set. However, if the frequency fm has already been reached is set to 0 at 26 x.

Claims (7)

Empfänger für digitalen Hörfunk (DAB), dadurch gekennzeichnet, daß Merkmale von jeweils empfangenen Ensembles in eine in einem Speicher (9) abgelegte Tabelle eingetragen werden und daß durch einen Bedienvorgang ein Eintrag aus der Tabelle abgerufen und der Empfänger auf Empfang des zugehörigen Ensembles eingestellt wird.Digital radio receiver (DAB), thereby characterized that characteristics of each received Ensembles in a table stored in a memory (9) be entered and that by an operation Retrieved entry from the table and the recipient on Reception of the associated ensemble is set. Empfänger nach Anspruch 1, dadurch gekennzeichnet, daß der Ensemble-Identifizierer (EId) und die Zentralfrequenz als Merkmal jeweils eines Ensembles gespeichert werden.Receiver according to claim 1, characterized in that the ensemble identifier (EId) and the central frequency can be saved as a characteristic of an ensemble. Empfänger nach Anspruch 2, dadurch gekennzeichnet, daß dem jeweils empfangenen Ensemble ferner Merkmale anderer Ensembles (OE) entnommen und in die Tabelle eingetragen werden.Receiver according to claim 2, characterized in that the ensemble received in each case also features of others Ensembles (OE) removed and entered in the table become. Empfänger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß den in die Tabelle eingetragenen Merkmalen Indikatoren beigegeben werden, welche die Aktualität widerspiegeln.Receiver according to one of the preceding claims, characterized in that the entered in the table Indicators are added, which the Reflect topicality. Empfänger nach Anspruch 4, dadurch gekennzeichnet, daß bei Hinzufügen eines Ensembles in den Speicher (9) der Tabelleninhalt neu sortiert wird.Receiver according to claim 4, characterized in that when adding an ensemble to the memory (9) of the Table content is sorted again. Empfänger nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, daß bei Erreichen der Kapazität der Tabelle ein Eintrag mit der niedrigsten Aktualität gelöscht wird. Receiver according to one of claims 4 or 5, characterized characterized in that when the capacity of the table is reached an entry with the lowest actuality is deleted. Empfänger nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß ein Eintrag, dessen Indikator einen minimalen Wert unterschreitet, gelöscht wird.Receiver according to one of claims 4 to 6, characterized characterized in that an entry, the indicator of which falls below the minimum value, is deleted.
EP19990114655 1998-10-12 1999-07-27 Receiver for receiving Digital Audio Broadcast (DAB) programmes Expired - Lifetime EP0994589B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19846865 1998-10-12
DE1998146865 DE19846865A1 (en) 1998-10-12 1998-10-12 Digital radio receiver

Publications (3)

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EP0994589A2 true EP0994589A2 (en) 2000-04-19
EP0994589A3 EP0994589A3 (en) 2003-05-21
EP0994589B1 EP0994589B1 (en) 2008-08-27

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EP19990114655 Expired - Lifetime EP0994589B1 (en) 1998-10-12 1999-07-27 Receiver for receiving Digital Audio Broadcast (DAB) programmes

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JP (1) JP2000124821A (en)
DE (2) DE19846865A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004134931A (en) * 2002-10-09 2004-04-30 Kenwood Corp Dab broadcast receiver

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09232981A (en) * 1996-02-27 1997-09-05 Alpine Electron Inc Dab receiver
EP0866566A1 (en) * 1996-10-07 1998-09-23 Sony Corporation Receiver
JPH1168684A (en) * 1997-08-08 1999-03-09 Fujitsu Ten Ltd Receiver for digital audio broadcasting
EP0989695A2 (en) * 1998-09-24 2000-03-29 Sony Corporation Receiver for receiving Digital Audio Broadcast (DAB) programmes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09232981A (en) * 1996-02-27 1997-09-05 Alpine Electron Inc Dab receiver
EP0866566A1 (en) * 1996-10-07 1998-09-23 Sony Corporation Receiver
JPH1168684A (en) * 1997-08-08 1999-03-09 Fujitsu Ten Ltd Receiver for digital audio broadcasting
EP0989695A2 (en) * 1998-09-24 2000-03-29 Sony Corporation Receiver for receiving Digital Audio Broadcast (DAB) programmes

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 01, 30. Januar 1998 (1998-01-30) -& JP 09 232981 A (ALPINE ELECTRON INC), 5. September 1997 (1997-09-05) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 08, 30. Juni 1999 (1999-06-30) & JP 11 068684 A (FUJITSU TEN LTD), 9. März 1999 (1999-03-09) *

Also Published As

Publication number Publication date
EP0994589A3 (en) 2003-05-21
DE59914854D1 (en) 2008-10-09
JP2000124821A (en) 2000-04-28
EP0994589B1 (en) 2008-08-27
DE19846865A1 (en) 2000-04-13

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