EP0469341A2 - Récepteur radio avec décodeur de signaux de données - Google Patents

Récepteur radio avec décodeur de signaux de données Download PDF

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Publication number
EP0469341A2
EP0469341A2 EP91111312A EP91111312A EP0469341A2 EP 0469341 A2 EP0469341 A2 EP 0469341A2 EP 91111312 A EP91111312 A EP 91111312A EP 91111312 A EP91111312 A EP 91111312A EP 0469341 A2 EP0469341 A2 EP 0469341A2
Authority
EP
European Patent Office
Prior art keywords
frequency
memory
data signal
alternative
radio data
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
EP91111312A
Other languages
German (de)
English (en)
Other versions
EP0469341B1 (fr
EP0469341A3 (en
Inventor
Jürgen Dr. Kässer
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.)
Blaupunkt Werke GmbH
Original Assignee
Blaupunkt Werke 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 Blaupunkt Werke GmbH filed Critical Blaupunkt Werke GmbH
Publication of EP0469341A2 publication Critical patent/EP0469341A2/fr
Publication of EP0469341A3 publication Critical patent/EP0469341A3/de
Application granted granted Critical
Publication of EP0469341B1 publication Critical patent/EP0469341B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04H20/20—Arrangements for broadcast or distribution of identical information via plural systems
    • H04H20/22—Arrangements for broadcast of identical information via plural broadcast systems
    • 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 object of the property right is a new radio receiver with a radio data signal decoder and memory for the alternative frequency information in the radio data signal.
  • the area of application of the new radio receiver is primarily intended for the motor vehicle.
  • a radio receiver is described with a memory in which, in addition to the PI code characterizing a specific program, the alternative frequencies assigned to this program are stored.
  • An evaluation memory is also assigned to each memory location for a frequency. The frequency with which the individual alternative frequencies have recently been set is noted in this memory.
  • the older invention offers the possibility of switching the receiver to the alternative frequency with the greatest number of frequencies, since this probably guarantees the best reception.
  • the radio receiver according to the invention is connected to an antenna 1 for receiving the carrier frequency of the transmitter to which the tuner 2 is set by an automatic transmitter selection 3.
  • the MPX signal the modulation of the received carrier frequency
  • This signal is, on the one hand, made to be heard by the loudspeaker 6 via the stereo decoder 4 and the NF amplifier 5 and, on the other hand, is routed to the RDS decoder 9 via a 57 kHz filter 7 and an RDS demodulator 8.
  • An output of the RDS decoder 9 is connected to a control input of the automatic transmitter selection 3.
  • the automatic transmitter selection 3 is also connected to an output of the tuner 2, to which a signal about the quality of the received carrier frequency, for. B. about field strength, multipath and the like, is removable.
  • the tuner 2 and the automatic transmitter selection 3 thus represent a type of control loop. This serves to select the best received carrier frequency of a program that has been set once and is identified by the assigned PI code in the radio data signal.
  • the radio data signal has so far been broadcast in the FM range of broadcasting.
  • FM carrier frequencies have a limited range.
  • only a limited number of carrier frequencies are available in the FM range.
  • VHF carrier frequencies at a certain spatial distance are therefore used to transmit different programs.
  • a car radio tuned to a certain frequency would, for. B. Listen to different programs on a longer travel route. In between there would be a travel section, on which the quality of the received transmitter signal leaves much to be desired, if it does not completely disappear.
  • the alternative frequencies communicated to the radio receiver via the radio data signal for the currently set radio program now offers the possibility of switching to one of the alternative frequencies in the event of poor reception of the currently set carrier frequency, in the hope that reception on the newly selected carrier frequency will be better.
  • the program Before the program is heard in this newly selected alternative frequency, it must be checked whether the frequency at the receiving location actually transmits the desired program or whether another program with a different PI code is already being received at the receiving location at this frequency. It must therefore be checked whether the PI code has been preserved.
  • the car radio remains muted during the review period. In order to keep the duration of the program interruption as short as possible, additional learning circles are provided in the new radio receiver, which work together with the memory shown in FIG. 2 as follows.
  • Each automatic transmitter selection 3 includes a plurality of station buttons 10 with which the driver can set certain carrier frequencies in the tuner 2. In a programming step that is not explained in detail, these carrier frequencies are previously assigned to the respective station buttons. This frequency specification has been stored in a frequency memory 11.
  • the station key 10 is also assigned a specific program.
  • Each station button 10 thus also has a very specific PI code which can be stored in a PI code memory 12.
  • the alternative frequency indications belonging to this PI code are also transmitted in the radio data signal, for the storage of which an AF memory 13 is provided.
  • the above-mentioned memories are mostly in the microprocessor modules of the transmitter selection automatics tik 3 integrated.
  • the microprocessor in the automatic transmitter selection 3 receives a start command from the tuner for a program for setting a well-received alternative frequency of the same program.
  • the automatic transmitter setting 3 has learning memories 14 for each stored alternative frequency, of which there is of course also the frequency set via the station key.
  • These learning memories 14 are initially empty. If the reception quality falls below the predefined threshold for the first time after the station key has been reassigned, then the learning memory 14, which belongs to the previously set frequency, is activated. If, after the aforementioned random access to one of the other alternative frequencies, one with good reception quality is found and the tuner is finally tuned to it, then this hop frequency is entered in the learning memory 14.
  • This process is repeated on a longer journey or more frequently in the mountainous area on shorter journeys.
  • the frequency which is stored in the frequency memory 11 is also set again at some point. If the reception quality again becomes too weak after it has been set again, information about a frequency is now available in the learning memory 14, which should preferably be set because the change to this hopping frequency has already been successful. A check of the PI code on this reset hop frequency can thus be omitted. The newly set transmitter can thus be switched through immediately.
  • the program returns to the selection of any other alternative frequency.
  • a counter 15 is expediently connected to each of the learning memories 14, which counts the frequency with which the hopping frequency read in the learning memory has been successfully set. At the next frequency jump, the learning memory with the highest counter reading is then preferred for the new setting.
  • the radio receiver will have a matrix after a longer period of operation, in which the alternative frequencies and the jump frequencies assigned to each PI code are listed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Selective Calling Equipment (AREA)
EP91111312A 1990-08-01 1991-07-08 Récepteur radio avec décodeur de signaux de données Expired - Lifetime EP0469341B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4024366A DE4024366C2 (de) 1990-08-01 1990-08-01 Autoradio mit einem Radiodatensignaldecoder
DE4024366 1990-08-01

Publications (3)

Publication Number Publication Date
EP0469341A2 true EP0469341A2 (fr) 1992-02-05
EP0469341A3 EP0469341A3 (en) 1992-05-06
EP0469341B1 EP0469341B1 (fr) 1995-12-20

Family

ID=6411413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91111312A Expired - Lifetime EP0469341B1 (fr) 1990-08-01 1991-07-08 Récepteur radio avec décodeur de signaux de données

Country Status (6)

Country Link
US (1) US5428827A (fr)
EP (1) EP0469341B1 (fr)
JP (1) JP3176655B2 (fr)
AT (1) ATE131980T1 (fr)
DE (2) DE4024366C2 (fr)
ES (1) ES2082888T3 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2568001Y2 (ja) * 1991-09-13 1998-04-08 株式会社ケンウッド ラジオ受信機
US5634205A (en) * 1994-04-19 1997-05-27 Uniden Corporation Radio equipment based on AFC system with temperature detection and method of automatic frequency control
JP3272880B2 (ja) * 1994-09-02 2002-04-08 パイオニア株式会社 Ｒｄｓ受信機
US5714932A (en) * 1996-02-27 1998-02-03 Radtronics, Inc. Radio frequency security system with direction and distance locator
DE19622349C2 (de) * 1996-06-04 2000-06-29 Bosch Gmbh Robert Verfahren und Bereitstellung eines Steuersignals für die Steuerung eines Rundfunkempfängers nach einem Standortwechsel
TW377533B (en) * 1996-11-06 1999-12-21 Koninkl Philips Electronics Nv Radio receiver for receiving a main radio broadcast signal and a monolithic integrated circuit for use in such radio receiver
US6021320A (en) * 1997-06-27 2000-02-01 Delco Electronics Corporation Broadcast receiver providing selectable categories of available broadcast signals
EP1032128A1 (fr) * 1999-02-23 2000-08-30 Mannesmann VDO Aktiengesellschaft Méthode de traitement de données de transmetteur et de programme dans un récepteur FM RDS
EP1056203A1 (fr) * 1999-05-26 2000-11-29 Mannesmann VDO Aktiengesellschaft Procédé de sélection d'une fréquence d'accord
EP1094627A1 (fr) * 1999-10-20 2001-04-25 Sony International (Europe) GmbH Méthode et dispositif pour récupérer des informations RDS
US6775378B1 (en) 1999-10-25 2004-08-10 Concerto Software, Inc Blended agent contact center
US6832203B1 (en) 1999-11-05 2004-12-14 Cim, Ltd. Skills based contact routing
US7230927B1 (en) 1999-12-07 2007-06-12 Aspect Software, Inc. Non-blocking expandable call center architecture
US6707906B1 (en) 2000-03-13 2004-03-16 Concerto Software, Inc. Outbound calling system in a contact center
US6766011B1 (en) 2000-06-16 2004-07-20 Concerto Software, Inc. Method and apparatus for controlling a contact center
US6778951B1 (en) 2000-08-09 2004-08-17 Concerto Software, Inc. Information retrieval method with natural language interface
US6778660B2 (en) 2001-04-06 2004-08-17 Concerto Software, Inc. Customer interaction system
US7970342B1 (en) 2006-02-06 2011-06-28 Griffin Technology Inc. Digital music player accessory with digital communication capability
JP5983378B2 (ja) * 2012-12-10 2016-08-31 アイコム株式会社 受信機
US10425939B2 (en) * 2015-11-30 2019-09-24 At&T Intellectual Property I, L.P. Method and apparatus for automated signal analysis and reporting among RF receiver devices

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6437138A (en) * 1987-08-01 1989-02-07 Pioneer Electronic Corp Discriminating method for channel frequency data transmission system in radio data system
EP0328440A1 (fr) * 1988-02-05 1989-08-16 STMicroelectronics S.A. Système de sélection pour la réception d'émissions radiodiffusées ou télédiffusées
DE3835870C1 (fr) * 1988-10-21 1990-01-18 Blaupunkt-Werke Gmbh, 3200 Hildesheim, De

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8003087A (nl) * 1980-05-29 1982-01-04 Philips Nv Ontvanger met een zenderzoekschakeling.
DE3121034C2 (de) * 1981-05-27 1987-01-02 Blaupunkt-Werke Gmbh, 3200 Hildesheim UKW-Empfänger
JPS63136829A (ja) * 1986-11-28 1988-06-09 Pioneer Electronic Corp ラジオデ−タシステム受信機
DE3709523A1 (de) * 1987-03-23 1988-10-13 Bosch Gmbh Robert Rundfunkempfaenger mit mindestens einem verkehrsfunkdecoder
US5170487A (en) * 1989-01-19 1992-12-08 Seiko Corp. Paging system with multiple frequencies and multiple protocols
DE3917236C1 (fr) * 1989-05-26 1990-08-02 Blaupunkt-Werke Gmbh, 3200 Hildesheim, De

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6437138A (en) * 1987-08-01 1989-02-07 Pioneer Electronic Corp Discriminating method for channel frequency data transmission system in radio data system
EP0328440A1 (fr) * 1988-02-05 1989-08-16 STMicroelectronics S.A. Système de sélection pour la réception d'émissions radiodiffusées ou télédiffusées
DE3835870C1 (fr) * 1988-10-21 1990-01-18 Blaupunkt-Werke Gmbh, 3200 Hildesheim, De

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 13, no. 230 (E-764)26. Mai 1989 & JP-A-1 037 138 ( PIONEER ELECTRONIC ) 7. Februar 1989 *

Also Published As

Publication number Publication date
JPH04234213A (ja) 1992-08-21
ATE131980T1 (de) 1996-01-15
DE59107109D1 (de) 1996-02-01
DE4024366A1 (de) 1992-02-13
EP0469341B1 (fr) 1995-12-20
EP0469341A3 (en) 1992-05-06
JP3176655B2 (ja) 2001-06-18
ES2082888T3 (es) 1996-04-01
DE4024366C2 (de) 1993-12-09
US5428827A (en) 1995-06-27

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