EP0798887A1 - Méthode pour la transmission de messages et récepteur pour la réception des messages - Google Patents

Méthode pour la transmission de messages et récepteur pour la réception des messages Download PDF

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Publication number
EP0798887A1
EP0798887A1 EP96119742A EP96119742A EP0798887A1 EP 0798887 A1 EP0798887 A1 EP 0798887A1 EP 96119742 A EP96119742 A EP 96119742A EP 96119742 A EP96119742 A EP 96119742A EP 0798887 A1 EP0798887 A1 EP 0798887A1
Authority
EP
European Patent Office
Prior art keywords
announcements
digital signals
receiver
transmitted
signals
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.)
Withdrawn
Application number
EP96119742A
Other languages
German (de)
English (en)
Inventor
Ulrich Dipl.-Ing. Kersken
Karin Dipl.-Ing. Hempel
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
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0798887A1 publication Critical patent/EP0798887A1/fr
Withdrawn legal-status Critical Current

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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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/091—Traffic information broadcasting
    • G08G1/094—Hardware aspects; Signal processing or signal properties, e.g. frequency bands
    • 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
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H04H60/16—Arrangements for conditional access to broadcast information or to broadcast-related services on playing information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/16—Arrangements for broadcast or for distribution of identical information repeatedly
    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/27—Arrangements for recording or accumulating broadcast information or broadcast-related information

Definitions

  • the invention relates to a method for transmitting announcements and a receiver for receiving and selectively playing announcements.
  • the radio data system enables an additional and inaudible transmission of digital data in parallel to radio programs in a data channel.
  • Specifications of the radio data system for VHF radio can be found in Tech. 3244 - E, March 1984 of the European Runfunk Union (EBU).
  • Radio receivers with suitable RDS decoders can record and decode transmitted data in addition to radio reception with the same receiver.
  • 32 groups of 104 bits each are provided for data transmission, with each of the transmitted groups being assigned a specific service.
  • Group 8a is currently intended for the transmission of digitally coded traffic reports.
  • the object of the present invention is therefore to provide a method and a receiver with which announcements can be selected, so that, for example, a driver hears only those announcements which relate to the road on which he is traveling.
  • announcements There may be a logical connection between the announcements and the digital signals. However, it is preferably provided in the invention that the digital signals are transmitted in direct temporal connection with the announcements.
  • the method according to the invention is primarily intended for traffic announcements. However, other announcements can also be received and played back selectively, such as search reports and disaster warnings.
  • the method according to the invention can be used with various types of transmission of the announcements, that is to say with the analogue transmission of conventional radio and with other analogue and digital types of transmission and communication networks, for example mobile radio and Internet.
  • Geographical information for example a motorway number or a geographical area such as "Greater Hanover” can essentially be used as information suitable for selection.
  • temporal information or information about the extent of traffic obstructions are also suitable for selection. For example, a driver does not need to make announcements for an area that he only reaches after a long period of time probably short-term disabilities.
  • the digital signals are transmitted in the format of digitally coded traffic reports (TMC) within radio data signals. It is preferably provided that the digital signals consist of the first sequence of the TMC messages according to ALERT C.
  • This further training enables in particular the use of devices in the receiver that have been developed for the TMC system and are manufactured in large quantities.
  • DAB digital radio
  • the transmitted digital signals and the transmitted announcements are stored on the receiver side.
  • a receiver according to the invention is designed to receive and selectively play announcements that are received in connection with digital signals that contain at least one information suitable for selection, such that the information suitable for selection of the digital signals received and selection criteria entered at the receiver are one Comparison device can be fed and that the playback of the announcements is controlled depending on the result of the comparison.
  • a decoder for the received digital signals is provided in the receiver according to the invention, the output signals of which can be fed to the comparison device.
  • the receiver according to the invention is preferably designed in such a way that the received and decoded digital signals are written into a memory area and the announcements are written into a further memory area that with the respective a digital signal assigned to an announcement and with the associated announcements a marker is written into the memory areas, that depending on the result of the comparison, those markers are selected that mark selected announcements, and that the stored announcements provided with these markers are read from the further memory area and played back.
  • the writing of the digital signals and the announcements into the memory areas is controlled with the aid of the bits TA and TP of the radio data signals.
  • line a each schematically shows audio signals which contain announcements D1, D2 and D3.
  • Line b shows the associated TMC messages TMC1 to TMC3, which are repeatedly transmitted during the announcements within the radio data system (RDS).
  • RDS bits TA and TP are indicated in lines c and d.
  • TA is set to 1 during the announcements, while TP always has the value 1 when a station with traffic announcements is received.
  • pauses in speech which are not assigned to any of the messages in the exemplary embodiment according to FIG. 1, whereas in the exemplary embodiment according to FIG. 2 a pause in speech is assigned to the subsequent message and the associated TMC messages TMC1 to TMC3 are already during during this pause.
  • the signaling for the beginning and end of a spoken announcement can take place at the push of a button of the speaker or technician, the direct connection between the content of the traffic announcement and the digital signal having to be ensured.
  • a clear assignment of the announcements and the TMC messages that belong together must be ensured in the receiver.
  • the received and selected announcements are reproduced immediately, this is done by evaluating the incoming TMC messages immediately after they have been decoded and comparing them with the selection criteria entered. The result of the comparison can then be used, for example, to suppress the unselected traffic reports if the receiver is set to play at a certain volume. If the receiver is muted, depending on the result of the comparison, the selected traffic reports can be muted.
  • receivers particularly car radios
  • memories for storing announcements.
  • the traffic reports can be reproduced at a time which is convenient for the user. For example, the announcements received and stored during a rest can be played when the journey is continued.
  • FIG. 3 illustrates how the association between announcements and TMC messages can be secured in the event of a storage.
  • a memory for audio signals and a memory for TMC messages are provided.
  • two separate memory modules are not required, rather a logical division into memory areas is required.
  • TMC messages are mentioned in connection with FIGS. 3, 4 or 5, this also means parts of TMC messages which are necessary for carrying out the method according to the invention, that is to say essentially the parts which contain a location.
  • a memory for the TMC messages contains a TMC message TMC1 to TMC5.
  • a reception time ET1 to ET5 and a marker M0 to M4 are stored in connection with the TMC message.
  • the associated marker M0 to M4 is stored in each case before the pause in speech.
  • FIG. 4a shows two TMC messages TMC2 and TMC5 which have been buffered after a selection and which have the result that the selected announcements D2 and D5 according to FIG. 4b are read out.
  • FIG. 5 shows a block diagram of a receiver and, for further illustration, a transmitter 1 which transmits traffic announcements spoken within the radio program and via TMC messages via RDS.
  • the exemplary embodiment and parts thereof are shown as block diagrams. However, this does not mean that the receiver according to the invention is limited to implementation using individual circuits corresponding to the blocks. Rather, the receiver according to the invention can be implemented in a particularly advantageous manner with the aid of highly integrated circuits. In this case, digital signal processors can be used which, with suitable programming, carry out the processing steps shown in the block diagrams.
  • audio signals are generated which are fed to a playback device 10, which is shown in simplified form as a block, but generally comprises a stereo decoder, an audio amplifier and a plurality of loudspeakers.
  • the RDS signal also generated by the tuning and receiving unit 2 is fed to an RDS decoder 3, which uses it to select TMC messages which are decoded at 4.
  • the TMC decoder 4 requires a location database, as is known in connection with the TMC system mentioned at the beginning.
  • the RDS decoder outputs the bits TA and TP at 6, which are fed to a message manager 5 and a memory area 8 for announcements.
  • This has the effect that only the audio signals which represent announcements are stored in the memory area 8 from the current radio program and that only those TMC messages which are transmitted during the spoken traffic reports are managed in the message management 5.
  • the message manager 5 recognizes new TMC messages and provides them with markers and with the reception time. Details of a device for managing TMC messages are described in the applicant's older German patent application 195 03 415.5.
  • the TMC messages thus supplemented are stored in a memory area 7. At the same time, the markers are inserted into the audio signals during the storage process.
  • the current TMC messages are stored in memory area 7.
  • the user can enter selection criteria, for example highway numbers, via an input device 12. These entries are compared with the location information at 9 contained in the TMC messages. The reading of the stored announcements is thus controlled at 11. The selected announcements are then fed to the playback device 10.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Circuits Of Receivers In General (AREA)
EP96119742A 1996-03-30 1996-12-10 Méthode pour la transmission de messages et récepteur pour la réception des messages Withdrawn EP0798887A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1996112836 DE19612836A1 (de) 1996-03-30 1996-03-30 Verfahren zur Übertragung von Durchsagen und Empfänger
DE19612836 1996-03-30

Publications (1)

Publication Number Publication Date
EP0798887A1 true EP0798887A1 (fr) 1997-10-01

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Family Applications (1)

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EP96119742A Withdrawn EP0798887A1 (fr) 1996-03-30 1996-12-10 Méthode pour la transmission de messages et récepteur pour la réception des messages

Country Status (2)

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EP (1) EP0798887A1 (fr)
DE (1) DE19612836A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0912003A2 (fr) * 1997-10-27 1999-04-28 Robert Bosch Gmbh Récepteur pour la réception d'émissions de radiodiffusion numérique DAB comportant un dispositif de sélection de messages dans une émission radiodiffusée
FR2846811A1 (fr) * 2002-10-31 2004-05-07 Siemens Vdo Automotive Perfectionnements a la reception d'informations de trafic pour autoradio

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5146612A (en) * 1989-04-17 1992-09-08 Spingarn James L Technique for using a subcarrier frequency of a radio station to transmit, receive and display a message together with audio reproduction of the radio program
US5493709A (en) * 1992-10-02 1996-02-20 Robert Bosch Gmbh Radio receiver for receiving digitally coded information including location and frequency data of a transmitter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5146612A (en) * 1989-04-17 1992-09-08 Spingarn James L Technique for using a subcarrier frequency of a radio station to transmit, receive and display a message together with audio reproduction of the radio program
US5493709A (en) * 1992-10-02 1996-02-20 Robert Bosch Gmbh Radio receiver for receiving digitally coded information including location and frequency data of a transmitter

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"RADIO BROADCASTING SYSTEMS;DIGITAL AUDIO BROADCASTING (DAB) TO MOBILE, PORTABLE AND FIXED RECEIVERS", ETS 300 401, XX, XX, PAGE(S) 1, 97-99,113-115, 121, XP000668972 *
NORMVORSCHLAG ALERT C, November 1990 (1990-11-01), RDS ATT ALERT CONSORTIUM
SPEZIFIKATIONEN DES RADIO-DATEN-SYSTEMS FUER UKW-HOERFUNK SIND UNTER ANDEREM IN DER DRUCKSCHRIFT TECH, March 1984 (1984-03-01), EUROPAISCHEN RUNFUNK-UNION (EBU), pages 3244-E

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0912003A2 (fr) * 1997-10-27 1999-04-28 Robert Bosch Gmbh Récepteur pour la réception d'émissions de radiodiffusion numérique DAB comportant un dispositif de sélection de messages dans une émission radiodiffusée
EP0912003A3 (fr) * 1997-10-27 2004-03-17 Robert Bosch Gmbh Récepteur pour la réception d'émissions de radiodiffusion numérique DAB comportant un dispositif de sélection de messages dans une émission radiodiffusée
FR2846811A1 (fr) * 2002-10-31 2004-05-07 Siemens Vdo Automotive Perfectionnements a la reception d'informations de trafic pour autoradio

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DE19612836A1 (de) 1997-10-02

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