EP0901724B1 - Verfahren zur verarbeitung von daten mit einem rundfunkempfänger - Google Patents
Verfahren zur verarbeitung von daten mit einem rundfunkempfänger 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
- Authority
- EP
- European Patent Office
- Prior art keywords
- data
- tmc
- rds
- time window
- type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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
-
- 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
Claims (3)
- Verfahren und Verarbeitung von Daten mit einem Rundfunkempfänger, der einen Empfangsteil (2), einen Radiodaten-Signal-Dekoder (3) und eine Wiedergabeeinrichtung für Audiosignale (6-9) aufweist, wobei der Radiodaten-Signal-Dekoder (3) einen Datenstrom von RDS-Daten zur Verfügung stellt, und im Datenstrom Zeitfenster (T0-T1, T1-T2...) vorgesehen sind, und wobei der Datenstrom Daten eines ersten Datentyps und Daten eines zweiten Datentyps enthält und ein Zeitfenster vorgesehen ist, in dem nur Daten des ersten Datentyps verarbeitet werden, dadurch gekennzeichnet, daß für den ersten Datentyp RDS-Daten ohne TMC-Daten und für den zweiten Datentyp TMC-Daten und RDS-Daten vorgesehen sind, daß periodisch Systemmeldungen (SY) für TMC-Daten übertragen werden, die grundlegende Informationen zur Verarbeitung von nachfolgenden TMC-Daten enthalten und daß die Systemmeldungen (SY) Daten enthalten, die anzeigen, ob ein nachfolgendes Zeitfenster des Datenstromes ausschließlich RDS-Daten oder RDS-Daten und TMC-Daten enthält.
- Verfahren zur Verarbeitung von Daten mit einem Rundfunkempfänger, der einen Empfangsteil (2), einen Radiodaten-Signal-Dekoder (3) und eine Wiedergabeeinrichtung für Audiosignale (6-9) aufweist, wobei der Radiodaten-Signal-Dekoder (3) einen Datenstrom von RDS-Daten zur Verfügung stellt, und im Datenstrom Zeitfenster ((T0-T1, T1-T2, ...) vorgesehen sind, und wobei der Datenstrom Daten eines ersten Typs und Daten eines zweiten Typs enthält und ein Zeitfenster vorgesehen ist, in dem nur Daten des ersten Typs verarbeitet werden, dadurch gekennzeichnet, daß für den ersten Datentyp RDS-Daten ohne TMC-Daten und für den zweiten Datentyp TMC-Daten und RDS-Daten vorgesehen sind, daß periodisch Systemmeldungen (SY) für TMC-Daten übertragen werden, die grundlegende Informationen zur Verarbeitung von nachfolgenden TMC-Daten enthalten, und daß nach den Systemmeldungen (SY) ein Abfragezeitfenster (T11-T12, T16-T17) und ein nachfolgendes Zeitfenster vorgesehen ist und daß das nachfolgende Zeitfenster (T12-T13, T17-T18) ausschließlich für die Verarbeitung von RDS-Daten vorgesehen ist, wenn im Abfragezeitfenster ausschließlich RDS-Daten auftreten.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß im Falle der Übertragung von TMC-Daten im Abfragefenster (T16-T17) und im nachfolgenden Zeitfenster (T17-T18) die TMC-Daten im nachfolgenden Zeitfenster (T17-T18) identisch zu den TMC-Daten (T16-T17) im Abfragefenster sind.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19621609A DE19621609A1 (de) | 1996-05-30 | 1996-05-30 | Verfahren zur Verarbeitung von Daten mit einem Rundfunkempfänger |
DE19621609 | 1996-05-30 | ||
PCT/DE1997/001087 WO1997047101A1 (de) | 1996-05-30 | 1997-05-28 | Verfahren zur verarbeitung von daten mit einem rundfunkempfänger |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0901724A1 EP0901724A1 (de) | 1999-03-17 |
EP0901724B1 true EP0901724B1 (de) | 2002-11-13 |
Family
ID=7795621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97925882A Expired - Lifetime EP0901724B1 (de) | 1996-05-30 | 1997-05-28 | Verfahren zur verarbeitung von daten mit einem rundfunkempfänger |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0901724B1 (de) |
JP (1) | JP3892047B2 (de) |
DE (2) | DE19621609A1 (de) |
ES (1) | ES2190534T3 (de) |
WO (1) | WO1997047101A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1241813A1 (de) * | 2001-03-15 | 2002-09-18 | Siemens Aktiengesellschaft | Verfahren zur Festlegung von Zeitfenstern in einem RDS-TMC-Rundfunkempfänger |
JP4181021B2 (ja) * | 2003-11-27 | 2008-11-12 | アルパイン株式会社 | 多重放送用受信装置および多重放送受信方法 |
DE102007047423A1 (de) | 2007-10-04 | 2009-04-09 | Robert Bosch Gmbh | Verfahren zum Auswerten von Verkehrsnachrichten |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3820640C2 (de) * | 1988-06-18 | 1997-04-03 | Bosch Gmbh Robert | Auswerteverfahren digitaler Verkehrsnachrichten |
DE3824309A1 (de) * | 1988-07-18 | 1990-01-25 | Bosch Gmbh Robert | Verfahren zur auswertung von in einem datentelegramm digital codiert empfangener verkehrsnachrichten, sowie rundfunkempfaenger |
GB9023307D0 (en) * | 1990-10-25 | 1990-12-05 | British Broadcasting Corp | Multichannel operation of rds |
DE4237987B4 (de) * | 1992-11-11 | 2004-07-22 | Adam Opel Ag | Elektronische Einrichtung |
JPH0851379A (ja) * | 1994-07-05 | 1996-02-20 | Ford Motor Co | 無線放送受信器の音声効果制御器 |
-
1996
- 1996-05-30 DE DE19621609A patent/DE19621609A1/de not_active Ceased
-
1997
- 1997-05-28 EP EP97925882A patent/EP0901724B1/de not_active Expired - Lifetime
- 1997-05-28 ES ES97925882T patent/ES2190534T3/es not_active Expired - Lifetime
- 1997-05-28 JP JP50009098A patent/JP3892047B2/ja not_active Expired - Fee Related
- 1997-05-28 DE DE59708719T patent/DE59708719D1/de not_active Expired - Lifetime
- 1997-05-28 WO PCT/DE1997/001087 patent/WO1997047101A1/de active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
DE19621609A1 (de) | 1997-12-04 |
ES2190534T3 (es) | 2003-08-01 |
DE59708719D1 (de) | 2002-12-19 |
EP0901724A1 (de) | 1999-03-17 |
WO1997047101A1 (de) | 1997-12-11 |
JP2000512448A (ja) | 2000-09-19 |
JP3892047B2 (ja) | 2007-03-14 |
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