EP0901724B1 - Method for processing of data with a radio receiver - Google Patents
Method for processing of data with a radio receiver Download PDFInfo
- Publication number
- EP0901724B1 EP0901724B1 EP97925882A EP97925882A EP0901724B1 EP 0901724 B1 EP0901724 B1 EP 0901724B1 EP 97925882 A EP97925882 A EP 97925882A EP 97925882 A EP97925882 A EP 97925882A EP 0901724 B1 EP0901724 B1 EP 0901724B1
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- data
- tmc
- rds
- time window
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- 238000000034 method Methods 0.000 title claims description 17
- 238000012545 processing Methods 0.000 title claims description 17
- 230000005236 sound signal Effects 0.000 claims description 7
- 230000006870 function Effects 0.000 description 16
- 230000005540 biological transmission Effects 0.000 description 10
- 238000012546 transfer Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/55—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for traffic information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/09—Arrangements for receiving desired information automatically according to timetables
-
- 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 for processing Data with a radio receiver according to the genus of independent claim.
- the Radio Data System is already known with which the transmission of digital data in parallel Broadcast programs with one data channel is possible.
- a Specification for the RDS for FM radio is u. a. in the Publication EN 50067, 1992 of the European Broadcasting Union (EBU).
- Radio receiver with suitable RDS decoders can transmitted data in addition to Record radio reception with the same receiver and decode.
- the Group 8a is currently for digital transmission coded traffic reports, the so-called Traffic Message System (TMC).
- TMC Traffic Message System
- ENV / 278/4/1/0011 the one on the standardization proposal of November 1990 published by the RDS Alert Consortium.
- the essential elements of a traffic report are Place of occurrence (location) and the event. This information is cataloged. H. that everyone traffic-relevant location and every traffic-related event a unique code is assigned. The concatenation of places in the place table along existing streets gives the Course again. Except for the usual facilities one Receivers with an RDS decoder are required to use the Traffic announcement channel TMC devices for decoding, for storage, further processing and output of the Traffic announcements required.
- the actual TMC data is still a variant of Groups 1a and 3a of the RDS protocol as system messages for TMC kept free. With these groups 1a and 3a, the are transmitted periodically, the general Framework conditions for the evaluation of the TMC data created. It will be so in particular clarified which place table the Underlying messages.
- TMC data that is traffic data, which is cyclical are transmitted from the radio transmitter to the radio receiver.
- the TMC signals are now via a control circuit, a Pictogram memory and a display driver in one optoelectronic device shown as a pictogram.
- WO 92/08303 proposes the reception security of the Increase data by using multiple channels be broadcast scattered. Therefore, the RDS data in one If the channel is not received correctly, the receiver has the Possibility of switching the data to another frequency to be received again in another channel.
- the selected radio station needs periods in the order of 0.5 to 1.5 s. During this Periods cannot perform other RDS functions and no TMC messages can be received either become. To perform these functions, the Radio thus identify time slots in which no TMC message can arrive, otherwise this message would be lost. No time slots have been provided so far, that were kept free from TMC data.
- the measures of the dependent claim can be particularly beneficial for RDS and TMC messages be used. So it is possible if it is known that TMC data are transmitted twice during the time double transmission of the TMC information to the undisturbed Use data processing complex functions if the TMC data is already complete when it is received for the first time were recorded correctly.
- FIG. 1 shows a known broadcasting system with which the inventive method can be implemented can and Figures 2,3 and 4 embodiments of Method according to the invention for processing data.
- FIG. 1 shows in the form of a block diagram to explain the method according to the invention required parts of a radio receiver, preferably of a car radio.
- a radio receiver Via an antenna 1 and a receiver (Tuner) 2 becomes an FM radio station known per se wise receive.
- the tuner 2 delivers a multiplex signal MPX, which is an audio signal or in the case of stereo transmission encoded form audio signals for the left and right channels contains.
- the multiplex signal also comprises a 57 kHz carrier modulates a radio data signal in one Decoder 3 is decoded.
- the decoder 3 thus generates one Data stream in the RDS data and the TMC data contained therein are included.
- the audio component of the multiplex signal MPX is in one Stereo decoder 4 decoded.
- An audio amplifier 5 with two Power amplifiers 6, 7 and two speakers 8, 9 are used for Playback of the audio signals and has an input 10 Adjust the volume to. Audio inputs of the Audio amplifier 5 are on the one hand via a switch 11 with the output of the stereo decoder 4 and on the other hand with an auxiliary input 12 connectable to a cassette or a CD player can be connected.
- a microcomputer 13 performs a number of functions in the shown radio receiver. Among other things various information on a display device (Display) 15 shown. Furthermore, the decoder 3 leads the Microcomputer 13 RDS signals, which evaluates them and in information contained in the RDS signals on the display 15 makes visible. Outputs of the microcomputer 13 are with the Control input 10 of the audio amplifier 5 and with a Control input of the switch 11 connected. About the Keyboard 14 can thus be one of the audio signal sources selected and the volume set.
- FIG. 2 shows a method for processing data generated by decoder 3 are shown. Is applied a time axis, which is represented by the times T0 to T4 in individual time window is divided.
- the time window between times T0 to T1 and T2 to T3 are with RDS referred to, which clarifies that in this Time slots only processed RDS data without TMC data become.
- the time window between the times T1 to T2 and T3 to T4 are designated TMC, which clarifies is that TMC data is processed in these time windows can be.
- TMC time window between the times T1 to T2 and T3 to T4 are designated TMC, which clarifies is that TMC data is processed in these time windows can be.
- TMC time window between the times T1 to T2 and T3 to T4 are designated TMC, which clarifies is that TMC data is processed in these time windows can be.
- TMC time window between the times T1 to T2 and T3 to T4 are designated TMC, which clarifies is that TMC data is processed in these
- a time axis is plotted in FIG divided into three time segments by times T5 to T8 becomes.
- the first time window T5 to T6 is used here as an example assumed that only RDS signals are received. It however, for this first time window between the At times T5 to T6, every other reception of data be realized.
- Transfer system messages contain Data for the evaluation of the following TMC data from are important, for example on the basis of which tables the TMC data can be interpreted.
- the transfer of a Such a system message is here in the time domain shown between times T6 to T7. to This system message is simplified in FIG. 3 as SY designated.
- a bit is now defined, which indicates whether a subsequent time window, which is determined by the times T7 to T8 is shown as a TMC time window or as an RDS time window is trained.
- the maximum duration one Time window is determined by the distance of the SY. at A TMC time window can contain both TMC data and RDS data are processed. There will be during this Time window, however, no complex RDS functions perceived that block the reception of TMC data could.
- the method according to the invention was based on FIG RDS data and TMC data described.
- the invention can always be used if Data of a first type and data of a second type to be processed, but certain Time window for data processing of only one type must be reserved. This will especially be the case Be the case when data of a first type is the most complex Processing steps require data from a second Types that should always be received, mixed be transmitted.
- FIG. 3 is not a bit in this system message provided, which indicates what data the following Time window included. This information is thereby given whether in a following the system message Query time window between times T11 to T12 TMC data and RDS data or only RDS data.
- TMC data and possibly additional RDS data is received, is signaled by that in the remaining period (T12 to T13) of Time window (T11 to T13) further TMC data and RDS data are included.
- T12 to T13 should however no complex RDS functions that the Processing or recording of TMC data prevent exercised become. This procedure is indicated by the TMC label of the time window T12 to T13 above the time axis shown. However, if sy following query time windows T11 to T12 only RDS data (see label below the Time axis), then T12 for the subsequent time segment up to T13 also exclusively RDS data (see labeling below the axis).
- the receiving one Radio receiver thus knows that it is in the time window T12 to T13 complex RDS functions, such as checking can make alternative transmitter frequencies without doing so there is a risk that TMC data will be lost.
- TMC time window i.e. window in which TMC data and RDS data
- RDS time window the is called time window in which only RDS data be processed.
- the TMC time window can be further divided into a first one Time period during which the TMC data are transmitted and a second time period in which only other RDS data transferred and evaluated.
- the corresponding TMCoder RDS time windows can be arranged as required become. However, the process becomes particularly simple if the TMC window and RDS window alternate. By can periodically change RDS or TMC time slots the receiver after syncing through Transmission errors disturbed signals the consequence and the Calculate the start characters of the individual time windows.
- FIG. 5 shows a further embodiment of the Invention shown.
- Another timeline is plotted through time T14 to T19 into several time stretches is divided.
- the first period between the Time T14 to T15 can again for any data be used.
- Between times T15 to T16 again transfer a system message sy, the basic one Contains information related to TMC.
- FIG. 3 is not a bit even with this system message provided, which indicates what data the following Time window included. In the following time window only transmit TMC data of identical content. If those TMC data received correctly at T17 can remaining duration T17 to T18 for time-consuming RDS functions be used.
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Circuits Of Receivers In General (AREA)
Description
Die Erfindung betrifft ein Verfahren zur Verarbeitung von Daten mit einem Rundfunkempfänger nach der Gattung des unabhängigen Patentanspruchs.The invention relates to a method for processing Data with a radio receiver according to the genus of independent claim.
Es ist bereits das Radio-Daten-System (RDS) bekannt, mit dem die Übermittlung von digitalen Daten parallel zu Rundfunkprogrammen mit einem Datenkanal möglich ist. Eine Spezifikation für das RDS für UKW-Hörfunk ist u. a. in der Druckschrift EN 50067, 1992 der europäischen Rundfunkunion (EBU) festgelegt. Rundfunkempfänger mit geeigneten RDS-Decodern können übermittelte Daten zusätzlich zum Rundfunkempfang mit demselben Empfangsteil aufnehmen und decodieren. Für die Datenübertragung sind 32 Gruppen zu jeweils 104 Bit vorgesehen, wobei jeder der übertragenenn Gruppen jeweils ein bestimmter Dienst zugeordnet wird. Die Gruppe 8a ist zur Zeit für die Übertragung von digital codierten Verkehrsmeldungen, dem sog. Traffic Message System (TMC), vorgesehen. Der Aufbau und die Codierung dieser TMC-Meldungen sind im CEN-Draft Pr. ENV/278/4/1/0011 festgelegt, der auf dem Normungsvorschlag vom November 1990 herausgegeben vom RDS Alert Consortium basiert. Die wesentlichen Elemente einer Verkehrsmeldung sind dabei der Ort des Geschehens (Location) und das Ereignis (Event). Diese Angaben sind katalogisiert, d. h. daß jedem verkehrsrelevanten Ort und jedem verkehrsrelevanten Ereignis ein eindeutiger Code zugewiesen ist. Die Verkettung der Orte in der Ortstabelle entlang existierender Straßen gibt den Verlauf wieder. Außer den üblichen Einrichtungen eines Empfangsgerät mit einem RDS-Decoder sind zur Nutzung des Verkehrsmeldungskanals TMC Einrichtungen zur Decodierung, zur Speicherung, zur Weiterverarbeitung und zur Ausgabe der Verkehrsmeldungen erforderlich. Neben der Gruppe 8a, die die eigentlichen TMC-Daten enthält, sind noch eine Variante der Gruppen 1a und 3a des RDS-Protokolls als Systemmeldungen für TMC freigehalten. Mit diesen Gruppen 1a und 3a, die periodisch übertragen werden, werden die allgemeinen Rahmenbedingungen für die Auswertung der TMC-Daten geschaffen. Es wird so insbesondere klar gestellt, welche Ortstabelle den Nachrichten zugrundeliegt.The Radio Data System (RDS) is already known with which the transmission of digital data in parallel Broadcast programs with one data channel is possible. A Specification for the RDS for FM radio is u. a. in the Publication EN 50067, 1992 of the European Broadcasting Union (EBU). Radio receiver with suitable RDS decoders can transmitted data in addition to Record radio reception with the same receiver and decode. There are 32 groups for data transmission 104 bits each are provided, each of which transmit Groups are assigned a specific service. The Group 8a is currently for digital transmission coded traffic reports, the so-called Traffic Message System (TMC). The structure and coding of these TMC messages are specified in the CEN draft Pr. ENV / 278/4/1/0011, the one on the standardization proposal of November 1990 published by the RDS Alert Consortium. The The essential elements of a traffic report are Place of occurrence (location) and the event. This information is cataloged. H. that everyone traffic-relevant location and every traffic-related event a unique code is assigned. The concatenation of places in the place table along existing streets gives the Course again. Except for the usual facilities one Receivers with an RDS decoder are required to use the Traffic announcement channel TMC devices for decoding, for storage, further processing and output of the Traffic announcements required. In addition to group 8a, the actual TMC data is still a variant of Groups 1a and 3a of the RDS protocol as system messages for TMC kept free. With these groups 1a and 3a, the are transmitted periodically, the general Framework conditions for the evaluation of the TMC data created. It will be so in particular clarified which place table the Underlying messages.
Aus der DE-A 42 37 987 ist es bekannt, Radiodatensignale, die zu einem Rundfunkempfänger neben den Audiosignalen übertragen werden, auszuwerten, um so dem Benutzer des Rundfunkgerätes weitere Informationen zur Verfügung zu stellen. Eine wesentliche Information, die dem Rundfunkhörer zur Verfügung gestellt werden soll, sind die TMC-Daten, das sind Verkehrsdaten, die zyklisch von Rundfunksender an die Rundfunkempfänger übertragen werden. Die TMC-Signale werden nun über eine Steuerschaltung, einem Piktogrammspeicher und einem Displaytreiber in einer optoelektronischen Einrichtung als Piktogramm dargestellt. In der WO 92/08303 wird vorgeschlagen, die Empfangssicherheit der Daten dadurch zu erhöhen, daß diese über mehrere Kanäle verstreut übertragen werden. Werden daher die RDS-Daten in einem Kanal nicht richtig empfangen, so hat der Empfänger die Möglichkeit, durch Umschalten auf eine andere Frequenz die Daten in einem anderen Kanal nochmals zu empfangen.From DE-A 42 37 987 it is known to transmit radio data signals transmitted to a radio receiver in addition to the audio signals are evaluated, so as to the user of the radio to provide further information. An essential one Information provided to the radio listener is the TMC data, that is traffic data, which is cyclical are transmitted from the radio transmitter to the radio receiver. The TMC signals are now via a control circuit, a Pictogram memory and a display driver in one optoelectronic device shown as a pictogram. In WO 92/08303 proposes the reception security of the Increase data by using multiple channels be broadcast scattered. Therefore, the RDS data in one If the channel is not received correctly, the receiver has the Possibility of switching the data to another frequency to be received again in another channel.
Zur Wahrnehmung bestimmter RDS-Funktionen, beispielsweise die Überprüfung alternativer Frequenzen für den gerade ausgewählten Sender benötigt der Rundfunkempfänger Zeiträume in der Größenordnung von 0,5 bis 1,5 s. Während dieser Zeiträume können keine anderen RDS-Funktionen ausgeübt werden und es können auch keine TMC-Nachrichten empfangen werden. Für die Wahrnehmung dieser Funktionen muß das Rundfunkgerät somit Zeitfenster identifizieren, in denen keine TMC-Nachricht eingehen kann, da sonst diese Nachricht verloren ginge. Bislang wurden keine Zeitfenster vorgesehen, die frei von TMC-Daten gehalten wurden.To perform certain RDS functions, for example checking alternative frequencies for the straight The selected radio station needs periods in the order of 0.5 to 1.5 s. During this Periods cannot perform other RDS functions and no TMC messages can be received either become. To perform these functions, the Radio thus identify time slots in which no TMC message can arrive, otherwise this message would be lost. No time slots have been provided so far, that were kept free from TMC data.
Das erfindungsgemäße Verfahren mit den kennzeichnenden Merkmalen der unabhängigen Patentansprüche hat demgegenüber den Vorteil, daß anhand der Systemmeldung oder aber kurz danach erkannt werden kann, ob ausreichend lange Zeitfenster auftreten können, in denen eine ungestörte Datenverarbeitung aufwendiger Funktionen, insbesondere RDS-Funktionen, erfolgen kann.The inventive method with the characteristic In contrast, features of the independent claims the advantage that based on the system message or briefly it can then be recognized whether the time window is sufficiently long can occur in which undisturbed data processing complex functions, especially RDS functions, can be done.
Weitere Vorteile ergeben sich aus den Maßnahmen des abhängigen Patentanspruchs. Das erfindungsgemäße Verfahren kann insbesondere vorteilhaft für RDS- und TMC-Nachrichten verwendet werden. So ist es möglich, wenn bekannt ist, daß TMC-Daten doppelt übertragen werden, die Zeit während der doppelten Übertragung der TMC-Informationen zur ungestörten Datenverarbeitung aufwendiger Funktionen zu verwenden, wenn die TMC-Daten beim ersten Empfang bereits vollständig und richtig aufgenommen wurden.The measures of the dependent claim. The method according to the invention can be particularly beneficial for RDS and TMC messages be used. So it is possible if it is known that TMC data are transmitted twice during the time double transmission of the TMC information to the undisturbed Use data processing complex functions if the TMC data is already complete when it is received for the first time were recorded correctly.
Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 ein bekanntes Rundfunksystem mit dem das erfindungsgemäße Verfahren realsisiert werden kann und die Figuren 2,3 und 4 Ausführungsbeispiele des erfindungsgemäßen Verfahrens zur Verarbeitung von Daten. Embodiments of the invention are in the drawings shown and in the following description explained. FIG. 1 shows a known broadcasting system with which the inventive method can be implemented can and Figures 2,3 and 4 embodiments of Method according to the invention for processing data.
Figur 1 zeigt in Form eines Blockschaltbildes die
zurErläuterung des erfindungsgemäßen Verfahrens
erforderlichen Teile eines Rundfunkempfängers, vorzugsweise
eines Autoradios. Über eine Antenne 1 und ein Empfangsteil
(Tuner) 2 wird ein UKW-Rundfunksender in an sich bekannter
Weise
empfangen. Der Tuner 2 gibt eine Multiplex-Siganl MPX ab,
das ein Audiosignal bzw. im Falle einer Stereoübertragung in
codierter Form Audiosignale für den linken und rechten Kanal
enthält. Ferner umfaßt das Multiplexsignal auf einem 57-kHz-Träger
moduliert ein Radio-Daten-Signal, das in einem
Decoder 3 decodiert wird. Der Decoder 3 erzeugt so einen
Datenstrom in dem RDS-Daten und die darin enthaltenen TMC-Daten
enthalten sind.Figure 1 shows in the form of a block diagram
to explain the method according to the invention
required parts of a radio receiver, preferably
of a car radio. Via an antenna 1 and a receiver
(Tuner) 2 becomes an FM radio station known per se
wise
receive. The
Der Audioanteil des Multiplexsignals MPX wird in einem
Stereo-Decoder 4 decodiert. Ein Audioverstärker 5 mit zwei
Endstufen 6, 7 und zwei Lautsprechern 8, 9 dient zur
Wiedergabe der Audiosignale und weist einen Eingang 10 zur
Einstellung der Lautstärke auf. Audio-Eingänge des
Audioverstärkers 5 sind über einen Umschalter 11 einerseits
mit dem Ausgang des Stereo-Decoders 4 und andererseits mit
einem Hilfseingang 12 verbindbar, an den ein Kasetten- oder
ein CD-Wiedergabegerät angeschlossen werden kann.The audio component of the multiplex signal MPX is in one
Ein Mikrocomputer 13 übt eine Reihe von Funktionen im
dargestellten Rundfunkempfänger aus. Unter anderem werden
verschiene Informationen auf einer Anzeigevorrichtung
(Display) 15 dargestellt. Ferner führt der Decoder 3 dem
Mikrocomputer 13 RDS-Signale zu, der diese auswertet und in
den RDS-Signalen enthaltene Informationen auf dem Display 15
sichtbar macht. Ausgänge des Mikrocomputers 13 sind mit dem
Steuereingang 10 des Audioverstärkers 5 sowie mit einem
Steuereingang des Umschalters 11 verbunden. Über die
Tastatur 14 kann somit eine der Audiosignalquellen
ausgewählt und die Lautstäreke eingestellt werden.A
In der Figur 2 wird ein Verfahren zur Verarbeitung von Daten
die von Decoder 3 erzeugt wurden gezeigt. Aufgetragen ist
eine Zeitachse, die durch die Zeitpunkte T0 bis T4 in
einzelne Zeitfenster unterteilt wird. Die Zeitfenster
zwischen den Zeitpunkten T0 bis T1 und T2 bis T3 sind mit
RDS bezeichnet, wodurch klargestellt wird, daß in diesem
Zeitfenstern nur RDS-Daten ohne TMC-Daten verarbeitet
werden. Die Zeitfenster zwischen den Zeitpunkten T1 bis T2
bzw. T3 bis T4 sind mit TMC bezeichnet, wodurch klargestellt
wird, daß in diesen Zeitfenstern TMC-Daten verarbeitet
werden können. Während dieser Zeitfenster können jedoch auch
andere RDS-Signale verarbeitet werden. Innerhalb dieser
Zeitfenster wird der Rundfunkempfänger jedoch keine RDS-Funktion
wahrnehmen, die sehr aufwendig sind, und die ihm
während dieser Zeit die Verarbeitung von TMC-Signalen
unmöglich macht. Dabei wird insbesondere an die RDS-Funktion
gedacht, die eine Überprüfung von alternativen
Sendefrequenzen für den gerade eingestellten Sender
ermöglicht. Bei der Wahrnehmung dieser Funktion können
nämlich keine TMC-Daten mehr empfangen werden, was zu einem
Verlust von entsprechenden TMC-Daten führen würde. Derartige
Funktionen werden vom Rundfunkempfänger nur in den
Zeitfenstern ausgeübt, in denen ausschließlich RDS-Daten
ohne TMC-Daten empfangen werden. In den Figuren 3 und 4
werden nachfolgend zwei Verfahren dargestellt mit denen ein
TMC-Zeitfenster oder ein RDS-Zeitfenster festgelegt werden
kann.FIG. 2 shows a method for processing data
generated by
In der Figur 3 ist wieder eine Zeitachse aufgetragen, die durch Zeitpunkte T5 bis T8 in drei Zeitstrecken unterteilt wird. Im ersten Zeitfenster T5 bis T6 wird hier als Beispiel davon ausgegangen, daß nur RDS-Signale empfangen werden. Es kann jedoch für dieses erste Zeitfenster zwischen den Zeitpunkten T5 bis T6 auch jeder andere Empfang von Daten realisiert sein. Für die Auswertung der TMC-Signale werden periodisch im festgelegten Abstand von z.B. einigen Sekunden Systemmeldungen übertragen. Diese Systemmeldungen enthalten Daten die für die Auswertung der nachfolgenden TMC-Daten von bedeutung sind, beispielsweise anhand welcher Tabellen die TMC-Daten interpretiert werden. Die Übertragung einer derartigen Systemmeldung wird hier in der Zeitstrecke zwischen den Zeitpunkten T6 bis T7 dargestellt. Zur Vereinfachung wird diese Systemmeldung in der Figur 3 als SY bezeichnet. Bei einer Systemmeldung handelt es sich dabei um eine einzelne Gruppe von 104 Bit so daß hier die Zeitstrecke SY übertriebener Breite dargestellt ist. In der Systemmeldung ist nun ein Bit definiert, das anzeigt, ob ein nachfolgendes Zeitfenster, welches durch die Zeitpunkte T7 bis T8 dargestellt ist, als TMC-Zeitfenster oder als RDS-Zeitfenster ausgebildet ist. Die maximale Dauer eine Zeitfensters wird durch den Abstand der SY festgelegt. Bei einem TMC-Zeitfenster können sowohl TMC-Daten wie auch RDS-Daten verarbeitet werden. Es werden während dieses Zeitfensters jedoch keine aufwendigen RDS-Funktionen wahrgenommen, die den Empfang von TMC-Daten blockieren könnten. Wenn jedoch durch das entsprechende Bit in der Systemmeldung klargestellt wird, daß das Zeitfenster ausschließlich für RDS-Nachrichten genutzt werden soll, so können auch aufwendige RDS-Funktionen, wie beispielsweise das Überprüfen anderer alternativer Sendefrequenzen, die die Aufnahme bzw. Verarbeitung weiterer Daten für einen Zeitraum blockieren, der die Länge des Zeitfensters nicht übersteigt, genutzt werden.A time axis is plotted in FIG divided into three time segments by times T5 to T8 becomes. The first time window T5 to T6 is used here as an example assumed that only RDS signals are received. It however, for this first time window between the At times T5 to T6, every other reception of data be realized. For the evaluation of the TMC signals periodically at a specified interval of e.g. a few seconds Transfer system messages. These system messages contain Data for the evaluation of the following TMC data from are important, for example on the basis of which tables the TMC data can be interpreted. The transfer of a Such a system message is here in the time domain shown between times T6 to T7. to This system message is simplified in FIG. 3 as SY designated. This is a system message a single group of 104 bits so here is the time segment SY exaggerated width is shown. In the System message a bit is now defined, which indicates whether a subsequent time window, which is determined by the times T7 to T8 is shown as a TMC time window or as an RDS time window is trained. The maximum duration one Time window is determined by the distance of the SY. at A TMC time window can contain both TMC data and RDS data are processed. There will be during this Time window, however, no complex RDS functions perceived that block the reception of TMC data could. However, if the corresponding bit in the System message clarifies that the time window should only be used for RDS messages, so can also perform complex RDS functions, such as checking other alternative transmission frequencies that the Recording or processing further data for a period block that does not exceed the length of the time window, be used.
Das erfindungsgemäße Verfahren wurde zur Figur 3 anhand von RDS-Daten und TMC-Daten beschrieben. Das erfindungsgemäße Verfahren kann jedoch immer dann eingesetzt werden, wenn Daten eines ersten Typs und Daten eines zweiten Typs verarbeitet werden sollen, wobei jedoch bestimmte Zeitfenster für die Datenverarbeitung nur eines Typs reserviert werden müssen. Dies wird insbesondere dann der Fall sein, wenn Daten eines ersten Typs die sehr aufwendige Verarbeitungsschritte erfordern mit Daten eines zweiten Typs, die möglichst immer empfangen werden müssen, gemischt übertragen werden.The method according to the invention was based on FIG RDS data and TMC data described. The invention However, the procedure can always be used if Data of a first type and data of a second type to be processed, but certain Time window for data processing of only one type must be reserved. This will especially be the case Be the case when data of a first type is the most complex Processing steps require data from a second Types that should always be received, mixed be transmitted.
Da die Systemmeldunge in einem festen Zeitraster gesendet werden, kann auch das Ende des jeweiligen Zeitfensters berechnet werden. Es können somit Übertragungsfehler kompensiert werden. Dies ist besonders vorteilhaft wenn, wie in Figur 2 dargestellt, ein TMC-Zeitfenster immer mit einem RDS-Zeitfenster abwechselt. Der Empfänger kann sich dann auf den Wechsel aufsynchronisieren und wird dadurch robust gegen Übertragungsfehler in der Systemmeldung SY.Because the system messages are sent in a fixed time frame can also be the end of the respective time window be calculated. This can result in transmission errors be compensated. This is particularly beneficial if how shown in Figure 2, a TMC time window always with a RDS time window alternates. The recipient can then turn on synchronize the change and is therefore robust against Transmission error in the system message SY.
In der Figur 4 wird ein weiteres Ausführungsbeispiel der Erfindung dargestellt. Aufgetragen ist wieder eine Zeitachse die durch Zeitpunkt T9 bis T13 in mehrere Zeitstrecken unterteilt wird. Die erste Zeitstrecke zwischen den Zeitpunkten T9 bis T10 kann wieder für beliebige Daten genutzt werden. Zwischen den Zeitpunkten T10 bis T11 wird wieder eine Systemmeldung sy übertragen, die grundsätzliche Informationen bezüglich TMC enthält. Im Unterschied zur Figur 3 ist jedoch bei dieser Systemmeldung kein bit vorgesehen, welches angibt, was für Daten die nachfolgenden Zeitfenster enthalten. Diese Information wird dadurch gegeben, ob in einem auf die Systemmeldung folgenden Abfragezeitfenster zwischen den Zeitpunkten T11 bis T12 TMC-Daten und RDS-Daten oder ausschließlich RDS-Daten eingehen. Wenn im Abfragezeitfenster TMC-Daten und eventuell zusätzlich RDS-Daten eingehen, wird dadurch signalisiert, daß in der verbleibenden Zeitstrecke (T12 bis T13) des Zeitfensters (T11 bis T13) weitere TMC-Daten und RDS-Daten enthalten sind. In der Zeitstrecke T12 bis T13 sollten jedoch keine aufwendigen RDS-Funktionen, die die Verarbeitung bzw. Aufnahme vom TMC-Daten verhindern ausgeübt werden. Diese Vorgehensweise wird durch die Beschriftung TMC des Zeitfensters T12 bis T13 oberhalb der Zeitachse dargestellt. Wenn jedoch in dem auf die Systemmeldung sy folgende Abfragezeitfenster T11 bis T12 ausschließlich RDS-Daten eingehen, (siehe Beschriftung unterhalb der Zeitachse), so sind für die darauffolgende Zeitstrecke T12 bis T13 auch ausschließlich RDS-Daten (siehe Beschriftung unterhalb der Achse) zulässig. Der empfangende Radioempfänger weiß somit, daß er im Zeitfenster T12 bis T13 aufwendige RDS-Funktionen, wie beispielsweise das Überprüfen alternativer Senderfrequenzen vornehmen kann, ohne daß dabei die Gefahr besteht, daß TMC-Daten verloren gehen. Durch die in den Figuren 3 und 4 dargestellten Verfahren können somit TMC-Zeitfenster (das heißt Fenster, in denen TMC-Daten und RDS-Daten) verarbeitet werden, und RDS-Zeitfenster (das heißt Zeitfenster, in denen ausschließlich RDS-Daten verarbeitet werden) definiert werden. Die TMC-Zeitfenster können dabei noch weiter unterteilt werden in eine erste Zeitsatrecke während der die TMC-Daten übertragen werden und eine zweite Zeitstrecke, in der nur andere RDS-Daten übertragen und ausgewertet werden. Die entsprechenden TMCoder RDS-Zeitfenster können dabei beliebig angeordnet werden. Besonders einfach wird das Verfahren jedoch wenn sich TMC-Fenster und RDS-Fenster jeweils abwechseln. Durch den periodischen Wechsel von RDS- oder TMC-Zeitfenstern kann der Empfänger nach dem Aufsynchronisieren auch bei durch Übertragungsfehlern gestörten Signalen die Folge und die Startzeichen der einzelnen Zeitfenstern berechnen.Another exemplary embodiment of FIG Invention shown. Another timeline is plotted through time T9 to T13 into several time stretches is divided. The first period between the Times T9 to T10 can again for any data be used. Between times T10 to T11 again transfer a system message sy, the basic one Contains information related to TMC. In contrast to However, FIG. 3 is not a bit in this system message provided, which indicates what data the following Time window included. This information is thereby given whether in a following the system message Query time window between times T11 to T12 TMC data and RDS data or only RDS data. If in the query time window TMC data and possibly additional RDS data is received, is signaled by that in the remaining period (T12 to T13) of Time window (T11 to T13) further TMC data and RDS data are included. In the time range T12 to T13 should however no complex RDS functions that the Processing or recording of TMC data prevent exercised become. This procedure is indicated by the TMC label of the time window T12 to T13 above the time axis shown. However, if sy following query time windows T11 to T12 only RDS data (see label below the Time axis), then T12 for the subsequent time segment up to T13 also exclusively RDS data (see labeling below the axis). The receiving one Radio receiver thus knows that it is in the time window T12 to T13 complex RDS functions, such as checking can make alternative transmitter frequencies without doing so there is a risk that TMC data will be lost. Through the The methods illustrated in FIGS. 3 and 4 can thus TMC time window (i.e. window in which TMC data and RDS data) are processed, and RDS time window (the is called time window in which only RDS data be processed). The TMC time window can be further divided into a first one Time period during which the TMC data are transmitted and a second time period in which only other RDS data transferred and evaluated. The corresponding TMCoder RDS time windows can be arranged as required become. However, the process becomes particularly simple if the TMC window and RDS window alternate. By can periodically change RDS or TMC time slots the receiver after syncing through Transmission errors disturbed signals the consequence and the Calculate the start characters of the individual time windows.
In der Figur 5 wird ein weiteres Ausführungsbeispiel der Erfindung dargestellt. Aufgetragen ist wieder eine Zeitachse die durch Zeitpunkt T14 bis T19 in mehrere Zeitstrecken unterteilt wird. Die erste Zeitstrecke zwischen den Zeitpunkten T14 bis T15 kann wieder für beliebige Daten genutzt werden. Zwischen den Zeitpunkten T15 bis T16 wird wieder eine Systemmeldung sy übertragen, die grundsätzliche Informationen bezüglich TMC enthält. Im Unterschied zur Figur 3 ist jedoch auch bei dieser Systemmeldung kein bit vorgesehen, welches angibt, was für Daten die nachfolgenden Zeitfenster enthalten. Im nachfolgenden Zeitfenster werden nur TMC-Daten identischen Inhalts übertragen. Wenn diese TMC-Daten bei T17 korrekt empfangen wurden, kann die restliche Dauer T17 bis T18 für zeitaufwendige RDS-Funktionen genutzt werden.5 shows a further embodiment of the Invention shown. Another timeline is plotted through time T14 to T19 into several time stretches is divided. The first period between the Time T14 to T15 can again for any data be used. Between times T15 to T16 again transfer a system message sy, the basic one Contains information related to TMC. In contrast to However, FIG. 3 is not a bit even with this system message provided, which indicates what data the following Time window included. In the following time window only transmit TMC data of identical content. If those TMC data received correctly at T17 can remaining duration T17 to T18 for time-consuming RDS functions be used.
Claims (3)
- Method for processing data with a broadcast radio receiver which has a reception part (2), a radio data signal decoder (3) and a playback device for audio signals (6-9), where the radio data signal decoder (3) provides a data stream of RDS data, and where the data stream contains time windows (T0-T1, T1-T2...), and where the data stream contains data of a first data type and data of a second data type, and a time window is provided in which only data of the first data type are processed, characterized in that RDS data without TMC data are provided for the first data type, and TMC data and RDS data are provided for the second data type, in that system messages (SY) for TMC data are transmitted cyclically which contain fundamental information relating to the processing of subsequent TMC data, and in that the system messages (SY) contain data which indicate whether a subsequent time window in the data stream contains exclusively RDS data or RDS data and TMC data.
- Method for processing data with a broadcast radio receiver which has a reception part (2), a radio data signal decoder (3) and a playback device for audio signals (6-9), where the radio data signal decoder (3) provides a data stream of RDS data, and the data stream contains time windows (T0-T1, T1-T2...), and where the data stream contains data of a first type and data of a second type, and a time window is provided in which only data of the first type are processed, characterized in that RDS data without TMC data are provided for the first data type, and TMC data and RDS data are provided for the second data type, in that system messages (SY) for TMC data are transmitted cyclically which contain fundamental information relating to the processing of subsequent TMC data, and in that, following the system messages (SY), a polling time window (T11-T12, T16-T17) and a subsequent time window are provided, and in that the subsequent time window (T12-T13, T17-T18) is provided exclusively for processing RDS data when exclusively RDS data appear in the polling time window.
- Method according to Claim 2, characterized in that, when TMC data are transmitted in the polling window (T16-T17) and in the subsequent time window (T17-T18), the TMC data in the subsequent time window (T17-T18) are identical to the TMC data (T16-T17) in the polling window.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19621609 | 1996-05-30 | ||
| DE19621609A DE19621609A1 (en) | 1996-05-30 | 1996-05-30 | Process for processing data with a radio receiver |
| PCT/DE1997/001087 WO1997047101A1 (en) | 1996-05-30 | 1997-05-28 | Method for processing of data with a radio receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0901724A1 EP0901724A1 (en) | 1999-03-17 |
| EP0901724B1 true EP0901724B1 (en) | 2002-11-13 |
Family
ID=7795621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97925882A Expired - Lifetime EP0901724B1 (en) | 1996-05-30 | 1997-05-28 | Method for processing of data with a radio receiver |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0901724B1 (en) |
| JP (1) | JP3892047B2 (en) |
| DE (2) | DE19621609A1 (en) |
| ES (1) | ES2190534T3 (en) |
| WO (1) | WO1997047101A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1241813A1 (en) * | 2001-03-15 | 2002-09-18 | Siemens Aktiengesellschaft | Procedure for the definition of time windows in a RDS-TMC radio receiver |
| JP4181021B2 (en) * | 2003-11-27 | 2008-11-12 | アルパイン株式会社 | Multiple broadcast receiving apparatus and multiple broadcast receiving method |
| DE102007047423A1 (en) | 2007-10-04 | 2009-04-09 | Robert Bosch Gmbh | Traffic message e.g. traffic message channel message, evaluation method for terminal, involves receiving traffic message using receiving unit, and examining message to check whether message contains user-specific information |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3820640C2 (en) * | 1988-06-18 | 1997-04-03 | Bosch Gmbh Robert | Evaluation procedure of digital traffic news |
| DE3824309A1 (en) * | 1988-07-18 | 1990-01-25 | Bosch Gmbh Robert | Method for evaluating traffic information, which is received in digitally coded form in a data message, as well as a broadcast radio receiver |
| GB9023307D0 (en) * | 1990-10-25 | 1990-12-05 | British Broadcasting Corp | Multichannel operation of rds |
| DE4237987B4 (en) * | 1992-11-11 | 2004-07-22 | Adam Opel Ag | Electronic device |
| JPH0851379A (en) * | 1994-07-05 | 1996-02-20 | Ford Motor Co | Audio effect controller of radio broadcasting receiver |
-
1996
- 1996-05-30 DE DE19621609A patent/DE19621609A1/en not_active Ceased
-
1997
- 1997-05-28 EP EP97925882A patent/EP0901724B1/en not_active Expired - Lifetime
- 1997-05-28 DE DE59708719T patent/DE59708719D1/en not_active Expired - Lifetime
- 1997-05-28 WO PCT/DE1997/001087 patent/WO1997047101A1/en active IP Right Grant
- 1997-05-28 ES ES97925882T patent/ES2190534T3/en not_active Expired - Lifetime
- 1997-05-28 JP JP50009098A patent/JP3892047B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3892047B2 (en) | 2007-03-14 |
| DE59708719D1 (en) | 2002-12-19 |
| JP2000512448A (en) | 2000-09-19 |
| EP0901724A1 (en) | 1999-03-17 |
| ES2190534T3 (en) | 2003-08-01 |
| WO1997047101A1 (en) | 1997-12-11 |
| DE19621609A1 (en) | 1997-12-04 |
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