EP0123154A1 - Récepteur radio avec décodeur de trafic - Google Patents

Récepteur radio avec décodeur de trafic Download PDF

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Publication number
EP0123154A1
EP0123154A1 EP84103252A EP84103252A EP0123154A1 EP 0123154 A1 EP0123154 A1 EP 0123154A1 EP 84103252 A EP84103252 A EP 84103252A EP 84103252 A EP84103252 A EP 84103252A EP 0123154 A1 EP0123154 A1 EP 0123154A1
Authority
EP
European Patent Office
Prior art keywords
frequency
low
reception
switch
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84103252A
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German (de)
English (en)
Other versions
EP0123154B1 (fr
Inventor
Dietmar Flügel
Rüdiger Dipl.-Ing. Linde
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.)
Allgemeiner Deutscher Automobilclub (ADAC) eV
Original Assignee
Allgemeiner Deutscher Automobilclub (ADAC) eV
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.)
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6194572&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0123154(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Allgemeiner Deutscher Automobilclub (ADAC) eV filed Critical Allgemeiner Deutscher Automobilclub (ADAC) eV
Priority to AT84103252T priority Critical patent/ATE28009T1/de
Publication of EP0123154A1 publication Critical patent/EP0123154A1/fr
Application granted granted Critical
Publication of EP0123154B1 publication Critical patent/EP0123154B1/fr
Expired legal-status Critical Current

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Classifications

    • 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

Definitions

  • the invention relates to a radio receiver with a radio-frequency low-frequency section which can be tuned to at least all traffic radio transmitters and a power amplifier which acts on loudspeakers and / or headphones and can be separated from the radio-frequency reception low-frequency section by a controllable low-frequency switch, and with a traffic radio decoder connected to the radio frequency reception low-frequency section, which decoder when received of an announcement identification frequency signal emits a switching signal for the low-frequency changeover switch, which then connects the high-frequency reception low-frequency part to the output stage, provided that this connection does not already exist, parallel to the first tunable high-frequency reception low-frequency part in the FM, independent of the first high-frequency reception low-frequency part Short-wave, medium-wave and / or long-wave band tunable high-frequency reception low-frequency part is connected to the low-frequency switch, which z has at least two switching positions in which it either the first high-frequency reception low-frequency part or the second high-frequency reception low frequency partly connects to the output stage and that
  • Such radio receivers are mainly installed as car radios in motor vehicles and work to receive traffic announcements on ultra-short waves.
  • Ultra-short wave radio traffic transmitters transmit in addition to a traffic radio transmitter detection signal of e.g. 57 kHz also an announcement detection frequency signal of e.g. 125 kHz off as long as a traffic announcement is made.
  • a traffic radio transmitter detection signal e.g. 57 kHz
  • an announcement detection frequency signal By means of the traffic radio station detection frequency signal, an indicator lamp can be applied, which thus indicates when a traffic radio transmitter is switched on.
  • the announcement frequency signal on the other hand, only appears when a traffic announcement is to be made by the broadcaster.
  • switchovers can be triggered in the radio receiver, which e.g. consist in that the muted receiver is switched on during the traffic announcement or that a running tape recorder is switched off temporarily in order to receive a traffic announcement during the occurrence of the announcement detection frequency signal via the high frequency reception low frequency part.
  • the aim of the invention is now to provide a radio with traffic radio decoder of the type mentioned at the beginning, with which traffic announcements can be received and listened to both in radio and tape mode.
  • the invention provides that the low-frequency switch has a third switch position in which a tape recorder is connected to the output stage and which the low-frequency switch takes when the tape recorder switch is switched on and there is no switching signal from the traffic radio decoder of the first high-frequency reception low-frequency part .
  • the second high-frequency reception-low frequency part should preferably not only be tunable to any frequencies in the FM band, but also other frequencies. areas such as in particular medium wave, but also long or short wave can receive.
  • the first, likewise tunable, high-frequency reception-low-frequency part on the other hand, only has those frequencies that are required for the reception of traffic radio stations. In general, this radio frequency reception / low frequency part will therefore only contain the FM band. If necessary, the VHF traffic radio frequencies could also be permanently stored in this high-frequency reception / low-frequency section and called up using switch buttons.
  • the traffic radio frequencies manually or also automatically to a traffic radio transmitter in this first high-frequency reception-low-frequency part, for example while observing a transmitter detection frequency signal lamp.
  • An area identification switch can also be connected to this first high-frequency reception-low-frequency part, by means of which one the different traffic codes A to F can be set.
  • the tape recorder or the second high-frequency reception low-frequency part can thus be connected to the output stage, in any case the first high-frequency reception low-frequency part being connected to the output stage by flipping the low-frequency switch when an announcement recognition signal appears when a traffic announcement appears.
  • a driver If a driver is in the border area of two different traffic decoders, which e.g. in cross-border traffic but can also occur in Germany without further ado, he must decide in the case of a conventional receiving device for one of the two traffic radio stations to be received, so that the other can no longer be intercepted.
  • the second and the first high-frequency reception low-frequency section are set to different traffic radio stations, in which case the traffic announcements received with the first high-frequency reception low-frequency section are then determined via the low frequency then in the first switching position - Switches are given to the output stage while the traffic announcements received via the transmitter set in the second high-frequency reception-low frequency section are received when the first high-frequency reception low-frequency section does not receive an announcement identification signal and the tape recorder, if present, is not switched on, ie the low-frequency switch is in the second switching position.
  • the invention provides that the second high-frequency reception-low-frequency part also has a traffic radio decoder, which switches a switch during the presence of an announcement frequency identification signal emits signal that brings the low-frequency switch in the second switching position, provided that it is not already there and there is no switching signal from the traffic radio decoder of the first high-frequency reception low-frequency part.
  • the invention thus uses the presence of two the FM. Band containing high-frequency reception low-frequency parts in order to be able to switch on two different traffic radio stations as required and to evaluate the relevant announcement frequency identification signals.
  • a preferred development of the invention provides that the outputs of both traffic radio decoders are applied to the low-frequency switch via a priority circuit are, which gives priority to the switching signal from the traffic radio decoder of the first high-frequency reception-low frequency part, such that the low-frequency switch takes the first switching stage when both traffic radio decoders emit a switching signal simultaneously.
  • the first radio frequency reception / low frequency part is given priority with regard to any traffic announcements.
  • the traffic announcements of the second traffic radio station set in the second high-frequency reception low-frequency section are thus only received if no traffic announcement is currently being made on the set main traffic radio station. In this way it is possible to receive at least predominantly the traffic announcements of two traffic transmitters.
  • the logical combination in tape operation is such that when a traffic announcement occurs on the first high-frequency reception-low frequency part, this part is connected to the output stage via the low-frequency switch, while when receiving a Traffic announcement through the second high frequency reception low frequency part of the latter is connected to the output stage.
  • the tape recorder is switched off during the traffic announcements.
  • the first high-frequency reception low-frequency section has a threshold circuit which, when falling below a predetermined reception field strength of the set transmitter emits a control signal and is connected to a warning signal generator which emits a warning signal when the control signal is present.
  • the warning signal can be of an acoustic or optical nature. This warning signal enables the driver to set a traffic radio decoder that is easier to receive.
  • the embodiment is preferably such that the warning signal generator emits an electrical audio frequency warning signal which is applied to the first switching contact of the low-frequency switch and that the threshold value circuit is connected via a control line to the priority circuit which transmits a threshold signal which appears when the predetermined reception strength is undershot to the others Control signals linked in such a way that the control circuit brings the switching arm into the first switching position when the threshold value signal appears.
  • the control signal can also be used to start the automatic station search of the first high-frequency reception-low-frequency section and to search for traffic stations (with / without area identification).
  • the warning signal generator and the control line can be switched off by the priority circuit by means of a manual switch from the low-frequency switch and / or the traffic radio decoder of the first high-frequency reception-low-frequency part, so that any permanent annoyance by a warning tone or a warning lamp or the switchover to the first high-frequency reception-low frequency part can be avoided.
  • the first high-frequency reception-low-frequency part can also be expedient to design the first high-frequency reception-low-frequency part to be switchable by the low-frequency switch.
  • the same manual switch can preferably be used for switching off the warning signal generator and the first high-frequency reception-low-frequency part, in that this is only provided after these two switching stages have been combined.
  • the antenna line 30 of a radio receiver is applied to two high-frequency reception-low-frequency parts 13 and 14, which are connected in parallel, which can be individually adjusted to a desired reception frequency by means of separate adjusting knobs 29, 24.
  • Both high frequency reception low frequency parts 13, 14 can be tuned to all frequencies of the FM band.
  • the high-frequency reception low-frequency part 14 also contains further radio bands, for example the medium-wave, short-wave and / or long-wave band.
  • Traffic radio decoders 11 and 11 ' are installed in both high-frequency and low-frequency parts 13, 14, the outputs of which are connected to a priority circuit 18 via switching lines 37 and 38, respectively.
  • the radio receiver has a built-in cassette tape recorder 16 which can be switched on, for example, by means of a handle 31 to be operated from the outside or by an inserted cassette via a built-in switch 17, which is also connected to the priority circuit 18 via a control line 32.
  • the audio output signal of the two high-frequency reception low-frequency parts 13, 14 is applied to switching contacts I and II of a low-frequency switch 12 with three switching positions.
  • the audio output of the tape recorder 16 is connected to the third switching contact III.
  • a control circuit 33 which is connected to the output of the priority circuit 18 via a control line, allows the switching arm of the low-frequency switch 12 to be brought into one of the three switching positions I, II or III.
  • the switching arm of the low-frequency switch 12 is connected to a power output stage 15, which feeds a loudspeaker 34, for example.
  • the first high-frequency reception-low-frequency stage 13 is assigned a threshold circuit 19 which, when the signal falls below a predetermined reception field strength of the transmitter set in part 13, outputs a control signal which is passed on to a warning signal generator 20 via a connecting line 35. This delivers at Er the control signal on line 35 appear to be an audio warning signal which, like the output of the first high-frequency reception low-frequency part 13, is applied to the switch contact I of the low-frequency switch 12.
  • An on / off switch 21 which can be actuated from the outside by means of an operating button 36, allows the warning signal generator 20 and also the first high-frequency receiving low-frequency part 13 to be switched off from the switching contact I as desired. With the switch 21 also on / off switches 21 ', 21 "are coupled in a control line between the threshold circuit 19 and the priority circuit 18 or the switching line 37, so that when the switch 21 is opened, the control line 39 and the switching line 37 are also interrupted.
  • the high-frequency reception-low frequency part 14 can now be tuned to any transmitter whose reception is desired by means of the tuning button 24.
  • the driver is completely free to set the station and can switch on classical music, light music or voice programs as required. He does not have to deviate from the desired setting if he also wants to listen to the traffic announcements of a traffic information station. In this case , all he has to do is set the first radio frequency low frequency part 13 to the desired traffic information station using the tuning button 29.
  • the traffic information decoder 11 delivers a switching signal to the third input of the priority circuit 18 via the control line 37.
  • the priority circuit 18 outputs a control signal to the control circuit 33, which causes the switching arm of the low-frequency switch 12 to the lower one Switch position I arrives in which the output of the first high-frequency reception-low-frequency part 13 is applied to the output stage 15.
  • the traffic announcement can now be listened to via the loudspeaker 34, while the program set in part 14 is temporarily interrupted.
  • the switching signal on line 37 disappears again and the switching arm of the low-frequency switch 12 returns to the middle switching contact II.
  • the set program can now continue to be received.
  • the tape recorder If the tape recorder is switched on, a corresponding switching signal arrives at the first input of the priority circuit 18 via the line 32, whereby the control circuit 33 is caused to apply the switching arm of the low-frequency switch 12 to the upper switching contact III. Now the audio output of the tape recorder 16 is connected to the output stage 15 and the tape can be listened to via the loudspeaker 34. If a traffic announcement is now received by the first high-frequency reception-low-frequency part 13, the switching line 37, the priority circuit 18 and the control circuit 33 are used again a switching of the switching arm of the low-frequency switch 12 into the lower switching position I, so that the traffic message can now be received.
  • the tape recorder 16 is also expediently switched off briefly during this time.
  • a switchover to the relevant high-frequency, low-frequency part 13 or 14 takes place both when a switching signal appears at the output of the traffic radio decoder 11 and at the output of the traffic radio decoder 11 '.
  • the Priority circuit 18 again gives priority to the first high-frequency reception-low-frequency part 13, so that in this case the changeover switch 12 reaches the switching position I.
  • the low-frequency switch 12 has only been illustrated purely schematically as a mechanical switch. It is preferably designed as an electronic switching element.
  • the radio receiver according to the invention differs externally in a first exemplary embodiment in the manner shown in FIG. 2 from a normal car radio.
  • the main frequency setting scale 22 which is actuated by a setting button 24, there is a narrower secondary frequency setting scale 23 running parallel to it, which is assigned to the first high-frequency receiving low-frequency part 13 and on which a desired traffic radio station can be set by means of something smaller adjustment knob 29.
  • a diode 25 can additionally display the setting of a traffic transmitter via the transmitter detection frequency signal.
  • the switches 24, 29 can also be designed as a two-level switch.
  • FIG. 3 A simplified embodiment is shown in Fig. 3. Here there is only one auxiliary setting button 29 for the traffic information transmitter and a display diode 25. As soon as a traffic radio transmitter of sufficient reception strength is switched on, the display diode 25 lights up.
  • the transmitter setting can also be determined by means of a digital display 28 for both receiving parts.
  • a digital display 28 for both receiving parts.
  • buttons 26, 27, either the high-frequency reception low-frequency part 13 or the high-frequency reception low-frequency part 14 can be applied to the digital display 28, so that successively both receivers are switched on manually or automatically to the desired transmitters can be put.
  • a warning signal is outputted to the warning signal generator 20 via the line 35, which is then located over the bottom in the switching position I
  • Switch arm of the switch 12 emits an audio warning signal to the output stage 15 and the loudspeaker 34.
  • the threshold value circuit 19 is connected via a control line 39 to the priority circuit 18, which links the threshold signal with the other control signals in the required manner.
  • the station search of the high-frequency reception low-frequency part 13 can also be started, if there is one.
  • the switch 21 can be opened by means of the manual actuation button 36, as a result of which the signal generator 20 and the first high-frequency reception-low-frequency part 13 can be disconnected from the switch contact I. Simultaneously with the opening of the switch 21, the switches 21 ', 21 "mechanically coupled with it are also opened. In this way it is prevented that the switching arm of the low-frequency switch 12 can reach switch position I.
  • This switch position is useful in a country where Traffic radio station can not be received at all or if, for example, you do not want to be disturbed by traffic announcements while listening to a concert.

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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)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
EP84103252A 1983-03-24 1984-03-23 Récepteur radio avec décodeur de trafic Expired EP0123154B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84103252T ATE28009T1 (de) 1983-03-24 1984-03-23 Rundfunkempfaenger mit verkehrsfunkdecoder.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3310792A DE3310792C2 (de) 1983-03-24 1983-03-24 Rundfunkempfänger mit Verkehrsfunkdecoder
DE3310792 1983-03-24

Publications (2)

Publication Number Publication Date
EP0123154A1 true EP0123154A1 (fr) 1984-10-31
EP0123154B1 EP0123154B1 (fr) 1987-06-24

Family

ID=6194572

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84103252A Expired EP0123154B1 (fr) 1983-03-24 1984-03-23 Récepteur radio avec décodeur de trafic

Country Status (3)

Country Link
EP (1) EP0123154B1 (fr)
AT (1) ATE28009T1 (fr)
DE (2) DE3310792C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0333194A2 (fr) * 1988-03-17 1989-09-20 Sanyo Electric Co., Ltd. Récepteur pour système RDS

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61290813A (ja) * 1985-06-18 1986-12-20 Pioneer Electronic Corp Ｆｍ受信機
DE3681246D1 (de) * 1985-10-18 1991-10-10 Grundig Emv Audiogeraetekombination fuer ein kraftfahrzeug.
DE8710025U1 (de) * 1987-07-22 1987-10-29 Wiemann, Hartmut, 2000 Hamburg Rundfunkempfangseinheit / nicht Kfz gebunden
DE4339432A1 (de) * 1993-11-18 1995-05-24 Bayerische Motoren Werke Ag Funksystem für Kraftfahrzeuge zum Übertragen von Warnsignalen eines Einsatzfahrzeugs zu anderen Verkehrsteilnehmern
DE19746525A1 (de) * 1997-10-22 1999-04-29 Volkswagen Ag Audioeinrichtung für Kraftfahrzeuge

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2910073A1 (de) * 1979-03-14 1980-09-18 Siemens Ag Rundfunkempfaenger mit verkehrsfunkdecoder
EP0066037A1 (fr) * 1981-05-27 1982-12-08 Blaupunkt-Werke GmbH Récepteur-UHF pour un système de radio-diffusion d'informations routières
EP0069213A2 (fr) * 1981-07-02 1983-01-12 Blaupunkt-Werke GmbH Appareil autoradio-cassette

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3033699C2 (de) * 1980-09-08 1983-04-07 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung mit mehreren Signalquellen und einem gemeinsamen Niederfrequenz-Wiedergabeteil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2910073A1 (de) * 1979-03-14 1980-09-18 Siemens Ag Rundfunkempfaenger mit verkehrsfunkdecoder
EP0066037A1 (fr) * 1981-05-27 1982-12-08 Blaupunkt-Werke GmbH Récepteur-UHF pour un système de radio-diffusion d'informations routières
EP0069213A2 (fr) * 1981-07-02 1983-01-12 Blaupunkt-Werke GmbH Appareil autoradio-cassette

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RADIOMENTOR ELECTRON., Band 44, Nr. 12, Dezember 1978, Seiten 480-481, München, DE; E.-O. BEDDIES; "Alpha 2000 Autoradio-Entwicklungsstudie" *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0333194A2 (fr) * 1988-03-17 1989-09-20 Sanyo Electric Co., Ltd. Récepteur pour système RDS
EP0333194A3 (fr) * 1988-03-17 1990-02-28 Sanyo Electric Co., Ltd. Récepteur pour système RDS

Also Published As

Publication number Publication date
DE3310792A1 (de) 1984-10-04
DE3464425D1 (en) 1987-07-30
DE3310792C2 (de) 1986-07-03
ATE28009T1 (de) 1987-07-15
EP0123154B1 (fr) 1987-06-24

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