EP0892513A2 - Récepteur de radiodiffusion pour la réception de données supplémentaires transmises avec l'émission radiophonique - Google Patents

Récepteur de radiodiffusion pour la réception de données supplémentaires transmises avec l'émission radiophonique Download PDF

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Publication number
EP0892513A2
EP0892513A2 EP98111317A EP98111317A EP0892513A2 EP 0892513 A2 EP0892513 A2 EP 0892513A2 EP 98111317 A EP98111317 A EP 98111317A EP 98111317 A EP98111317 A EP 98111317A EP 0892513 A2 EP0892513 A2 EP 0892513A2
Authority
EP
European Patent Office
Prior art keywords
radio receiver
broadcast
information
tuner
receiver according
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Withdrawn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
EP98111317A
Other languages
German (de)
English (en)
Other versions
EP0892513A3 (fr
Inventor
Stefan Goss
Heinrich Schmidt
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 EP0892513A2 publication Critical patent/EP0892513A2/fr
Publication of EP0892513A3 publication Critical patent/EP0892513A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
    • H04H20/33—Arrangements for simultaneous broadcast of plural pieces of information by plural channels
    • H04H20/34—Arrangements for simultaneous broadcast of plural pieces of information by plural channels using an out-of-band subcarrier signal
    • 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
    • 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
    • H04H20/57—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for mobile receivers
    • 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 radio receiver according to the Preamble of claim 1.
  • Radio receivers have a tuner and one Decoder, by means of which further information besides the Broadcasting program to be transmitted to the radio handset.
  • RDS radio data system
  • RDS Radio data system
  • it In addition to the digital broadcasting program, it is possible to add others To transmit information. It is common for example, using RDS information about the received station, its name and the type of broadcast information, for example To transmit traffic news or messages.
  • this information is output.
  • RDS system faces the problem that although the name of the Broadcasting company is transmitted very frequently, however further information, also about RDS broadcast, not broadcast as often.
  • a radio handset a corresponding radio transmitter set, he only learns after a certain time whether this broadcaster broadcasts an additional service that it want to use or not. Then he realizes that this Broadcasters do not have the desired additional information broadcasts, he must go to the nearest radio station and also wait until he learns whether the desired information from this radio station is broadcast or not. This procedure therefore takes relatively long time.
  • the radio receiver according to the invention with the features of The main claim has the advantage that the Broadcast listeners very quickly from the broadcast receiver Station is tuned in, which the desired by him Transmits additional information. He can also do a lot quickly get information about whether the desired one Additional information at all on one of the receivable Broadcasters is transmitted.
  • Measure is therefore achieved that according to the reception request of the Users of the radio receiver very quickly a transmitter who offers the corresponding additional service.
  • the invention can be used advantageously in particular if the radio receiver has a second tuner and one second decoder.
  • the second tuner can then and the second decoder serve to keep the table going To update. It is also advantageous to read the table to arrange broadcast programs, and the frequencies at who are broadcasting the same program, this one Assign programs. This makes it possible for one Receive a specific additional program Select station with the same program and the same Additional program that offers the best reception quality.
  • Farther it is still advantageous to have a GPS receiver in the Integrate radio receivers.
  • the GPS receiver gives the Possibility to change the location of the Radio receiver to be determined so as to create a new one Trigger search or when selecting one appropriate additional information to ensure that thereby determining the location using the GPS receiver and the additional information is improved.
  • the output signal of the first tuners will be one after its demodulation first RDS decoder 2 supplied, on the other hand, this happens Output signal after a corresponding low-pass filtering an amplifier 5, to which in turn a loudspeaker 6 connected.
  • the Broadcast tuner received broadcast signal while in RDS decoder 2 the data signal transmitted on a subcarrier is processed.
  • the output of the data signal comes in a microprocessor 7, which in turn is also the setting controls the transmission frequency of tuner 1.
  • a variable memory 8 and a ROM 12 connected.
  • ROM 12 there are programs for the Microprocessor filed, as well as information about receivable additional services, these additional services Keywords are assigned, e.g. at RDS be transmitted.
  • the memory 12 for the Traffic Message Channel (TMC) its keyword CD46 on, for the additional service Differential GPS das Keyword 4321 and for the additional service paging that Keyword 4590 on.
  • TMC Traffic Message Channel
  • the microprocessor 7 controls furthermore a display 4 on which information about the Stations, traffic news or other information Additional services, such as pager information can be displayed. Are also on display for example, the location can be displayed.
  • an input keyboard 3 connected, by means of which the microprocessor 7 commands from Operators of the radio receiver can be placed.
  • the radio receiver provides the basic version its simplest design.
  • a table is now stored in the changeable memory 8, when the radio receiver is started up for the first time is empty.
  • the radio receiver is now controlled via the Microprocessor through a channel scan, then for the first time the table is filled with information. How this happens in detail, is closer in Figure 3 explained.
  • the tuner at the first frequency stopped at which a broadcast signal can be received.
  • the Query point 32 is now checked whether the set Broadcast transmitter delivers a signal of sufficient field strength, to ensure perfect radio reception. Is this is not the case, i.e. the field strength is below one given value, the system jumps to 39 and the scanning process is started again at point 30 continued, in which now the tuner to another receivable frequency is set.
  • the query branch 36 branches to where it is queried whether the frequency has already been stored under the given PI code. If this is not the case, the process branches again to point 37, where the frequency and the field strength are newly entered in the transmitter table, and is fed to the already existing frequencies. If the frequency has also already been entered in the transmitter table, which is determined in interrogation point 36, then only the field strength in the transmitter table is updated at point 38. The program sequence for a received station is then ended. This program sequence is now continued until the entire frequency band has been scanned. As a result of this search, a table will now be found in the variable memory 8, which is shown in Table 1 by way of example.
  • PI codes registered, i.e. the programs by the different channels are broadcast. So corresponds for example the PI code D382 for North German Broadcasting 1, D372 West Germanyr Rundfunk 2 etc.
  • Table 3 contains the transferable ones Further information.
  • D382 is under the PI code D382 only receive the additional information CD46 what corresponds to the Traffic Message Channel.
  • D372 also becomes paging transmitted while under the PI code D220 as Additional information differential GPS signals are transmitted and under the PI code D392 traffic information in digital form (TMC) as well as differential GPS signals.
  • TMC digital form
  • the fourth column is the field strength of the received signals filed. This is important if, as in the first case Several transmitters can be received using the same PI code are assigned, i.e. the same radio program. Herewith the frequencies are now sorted according to the field strength, so that in case of doubt the transmitter will be tuned in with the strongest field strength can be received.
  • this table must be generated at least initially and be renewed at regular intervals. This is however, the tuner and the RDS decoder at least during the Creation phase and the renewal phase blocked. It is therefore cheaper to have a radio receiver with two To provide tuners. For this purpose, one in FIG Another tuner 10 available, which is also on one symbolically represented antenna is connected. Of the Output of the second tuner 10 leads only to one Second RDS decoder 11, the output of which is processed RDS signals are in turn fed to the microprocessor 7. This second tuner 10 with the second RDS decoder 11 is used now only, as previously described, Table 1 build up and update at regular intervals.
  • a radio receiver can be used GPS receiver 9 will be present, its output signals also delivers to the microprocessor 7.
  • GPS receivers that can be operated in the non-military sector however, the current location of the radio receiver only deliver with finite accuracy.
  • the one from the GPS receivers 9 delivered signals are, however, significantly too improve when these signals with differential GPS signals corrected, which are received by a receiver, who is at a defined and known location located, and now the received signals due corrected his exact location knowledge.
  • Will this Correction signals (differential GPS signals) as Additional information broadcast via a radio receiver, it is also possible to determine the location of moving objects correct and define very precisely, since the deviation of the received signal from an exact signal is. It is therefore especially with a GPS receiver 9 very useful, as additional information differential GPS received so that the signal of the GPS receiver improve.
  • the radio receiver is then able to other applications, such as navigation or Selection of TMC messages a very accurate location signal to create.
  • query 19 determines that a suitable one There is no entry of additional information a further search preferably with the tuner 10 carried out to determine whether in the meantime a Can be found, the corresponding one Combination of additional information. Becomes a such a station found at the interrogation point 23, the Search ended and this station tuned in immediately. If there is still no suitable transmitter, it will Users reported at point 26 that a corresponding Information cannot be provided.
  • the application of the invention is not to radio programs limited that broadcast RDS information. Rather is the invention can be used in all radio systems that broadcast additional information in addition to the radio program. These can also be digital audio broadcast receivers, at which also in addition to the actual radio program Additional information about the program type and the type the additional information is also sent.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
EP98111317A 1997-07-15 1998-06-19 Récepteur de radiodiffusion pour la réception de données supplémentaires transmises avec l'émission radiophonique Withdrawn EP0892513A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997130218 DE19730218A1 (de) 1997-07-15 1997-07-15 Rundfunkempfänger
DE19730218 1997-07-15

Publications (2)

Publication Number Publication Date
EP0892513A2 true EP0892513A2 (fr) 1999-01-20
EP0892513A3 EP0892513A3 (fr) 2004-02-11

Family

ID=7835716

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98111317A Withdrawn EP0892513A3 (fr) 1997-07-15 1998-06-19 Récepteur de radiodiffusion pour la réception de données supplémentaires transmises avec l'émission radiophonique

Country Status (2)

Country Link
EP (1) EP0892513A3 (fr)
DE (1) DE19730218A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1659711A1 (fr) * 2004-11-17 2006-05-24 Harman Becker Automotive Systems GmbH Dispositif et procédé de divertissement et traitement d'informations pour un véhicule
DE102007024883A1 (de) 2007-05-29 2009-01-02 GM Global Technology Operations, Inc., Detroit Autoradio
US8320821B2 (en) 2008-07-04 2012-11-27 Mitsubishi Electric Corporation Receiving apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017756A1 (de) * 1990-06-01 1991-12-05 Grundig Emv Rds-rundfunkempfaenger mit einer einrichtung zum aufsuchen aktuell empfangswuerdiger alternativer frequenzen
JPH07321679A (ja) * 1994-05-24 1995-12-08 Pioneer Electron Corp 多重放送選局方法及び当該方法を用いた受信機
DE4442413A1 (de) * 1994-11-29 1996-05-30 Bosch Gmbh Robert Verfahren zur Einstellung eines mobilen Rundfunkempfängers und Rundfunkempfänger

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1659711A1 (fr) * 2004-11-17 2006-05-24 Harman Becker Automotive Systems GmbH Dispositif et procédé de divertissement et traitement d'informations pour un véhicule
DE102007024883A1 (de) 2007-05-29 2009-01-02 GM Global Technology Operations, Inc., Detroit Autoradio
US8320821B2 (en) 2008-07-04 2012-11-27 Mitsubishi Electric Corporation Receiving apparatus
DE112009001324B4 (de) * 2008-07-04 2015-05-13 Mitsubishi Electric Corp. Empfangsvorrichtung für Fahrzeuge

Also Published As

Publication number Publication date
EP0892513A3 (fr) 2004-02-11
DE19730218A1 (de) 1999-01-21

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