EP0994587A2 - Méthode pour sélectionner un programme de radiodiffusion dans une mémoire supplémentaire d'un récepteur, capable de capter des signaux RDS - Google Patents

Méthode pour sélectionner un programme de radiodiffusion dans une mémoire supplémentaire d'un récepteur, capable de capter des signaux RDS Download PDF

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Publication number
EP0994587A2
EP0994587A2 EP99114652A EP99114652A EP0994587A2 EP 0994587 A2 EP0994587 A2 EP 0994587A2 EP 99114652 A EP99114652 A EP 99114652A EP 99114652 A EP99114652 A EP 99114652A EP 0994587 A2 EP0994587 A2 EP 0994587A2
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EP
European Patent Office
Prior art keywords
program
radio
rds
code
reception quality
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.)
Ceased
Application number
EP99114652A
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German (de)
English (en)
Other versions
EP0994587A3 (fr
Inventor
Klaus-Erwin Groeger
Klaus-Dieter Dickhoff
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 EP0994587A2 publication Critical patent/EP0994587A2/fr
Publication of EP0994587A3 publication Critical patent/EP0994587A3/fr
Ceased legal-status Critical Current

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    • 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
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
    • H04H60/37—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying segments of broadcast information, e.g. scenes or extracting programme ID
    • 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 selecting a radio program off in a background memory of an RDS (radio data system) radio receiver stored radio programs with different program identification codes (PI codes), where the PI code at least one country code, one regional code and comprises a program identifier, according to the preamble of the claim 1.
  • PI codes program identification codes
  • RDS R adio- D aten- S ystems
  • This RDS signal also contains information that may be communicated to the driver or a user on a display of the RDS car radio.
  • the RDS signal is DIN in the EBU specification mentioned above EN50067 specifies and contains or transmits with the transmitter signal a currently set frequency of a currently on the RDS car radio set radio transmitter to differentiate the different Radio transmitter with correspondingly different transmitter chains a program identification code, hereinafter PI code or abbreviated PI.
  • PI code a program identification code
  • the country code is used for coding of the country in which the respective program is broadcast, the regional identifier gives an indication of the limited distribution of the over the respective Frequency broadcast program while the program identifier identifies the broadcaster and the respective program.
  • the country code and the regional code are four bits and Program identifier is encoded with eight.
  • the PI code is in accordance with the EBU specification DIN EN50067 from four digits, which are also called 1st nibble to 4th nibble.
  • the 1st Nibbel marks the country, e.g. "D” for Germany or "F” France.
  • the 2nd nibble indicates whether it is a supraregional, national or regional broadcaster. This second nibble contains the distinction between original and neighboring channels.
  • the 3rd nibble identifies the transmitter chain, e.g. "8" for NDR.
  • the 4th nibble makes a difference the respective program of the transmitter chain, e.g. NDR1, NDR2, NDR3, NDR 4 etc. of the broadcasting network of the North German Radio NDR.
  • the PI code which is broadcast via the RDS signal, is used for Identification of a program broadcast on a broadcast frequency.
  • each program or the respective associated transmission frequency an individual PI code is assigned.
  • radio programs are dynamically regionalized at certain times of the day, i.e. broadcast with regionally different content, such as this is the case with NDR1, for example, so that different stations broadcast different regional programs from the same network, such as NDR1 Harz, NDR1 Hannover etc.
  • NDR1 Harz, NDR1 Hannover etc. For the clear The distinction is that each of these regional programs has its own PI code assigned, which is the same in the program identifier and in the regional identifier differs.
  • Each radio signal is a list for alternative frequencies via the RDS (AF list), which indicates alternative frequencies on which this program can also be received.
  • RDS car radios offer an automatic function to switch from one frequency currently set on the receiver to an alternative frequency (AF) without changing the program content if this results in a results in better reception quality.
  • AF alternative frequency
  • transmitters of a transmitter chain alternative frequency identical with different regional programs are assigned, it can by such an automatic frequency change to an AF to an undesired change by the user of the program content come as a transmitter of this transmitter chain with another regional program is started.
  • the automatic change to alternative frequencies is provided, which can be manually selected by the user.
  • the second is "REG.-OFF-MODE" the evaluation of the 2nd nibble is not provided.
  • This is then in favor a possible reception of a transmitter chain Switched from one regional program to another. This can happen in unfavorable locations, for example in mountainous areas, may be beneficial if reception is poor or No AF with identical PI has left the reception area can be.
  • the first Radio program in a predetermined Operating state of the RDS radio receiver depending on one Reception quality of a currently set on the RDS radio receiver first radio program when selecting a new one on the RDS radio receiver radio program to be set from the Background memory one or more in the background memory the first Radio program subsequently stored second radio programs, which differs from the first broadcast program in the PI code only by the Distinguish regional identifier, either skipped or one Receiving quality check and the second Broadcast program is set on the RDS broadcast receiver, which has the best reception quality.
  • REG.-ON-MODES which also sharply separates regional stations a single channel chain, with the advantages of one Disregard for the regional identification of a sogn. REG.-OFF modes that concern a larger AF selection in unfavorable reception situations, in one single operating state of the RDS radio receiver connected.
  • the skip is exceeded a predetermined reception quality and the reception quality check when falling below a predetermined reception quality of the first radio program selected.
  • a field strength check is a multipath test, an adjacent channel selection test and / or an RDS signal error rate check, wherein the Reception quality, in particular a field strength, a multipath quality, includes an adjacent channel selection and / or an RDS signal error rate.
  • An attitude of the regional radio program which with great probability for the region in which the RDS radio receiver is located is actually valid, is achieved by Check when setting a new radio program from the background memory, whether subsequently saved in the background memory there are further radio programs which are different from the new one Differentiate broadcasting programs in the PI code only by the regional identifier, Perform a reception quality check on this group differing from each other only in the regional identifier Radio programs and setting of the radio program, which has the best reception quality.
  • the method according to the invention is expediently used with manual Browsing (program browsing) performed by a user, so that here always radio programs with different content be jumped to. A multiple repetition of radio programs with different PI codes but nationally the same content is thus effectively avoided when browsing through the program.
  • Local stations have a special position in that Broadcast programs, which are stored as a local identifier, such as Broadcaster with national or supranational identification, while browsing through the program always be browsed, regardless of whether they have the same program identifier have or on the RDS radio receiver an evaluation of the Region code is activated (REG.-ON-MODE) or not (REG.-OFF-MODE).
  • the predetermined operating state can then, for example, automatically be activated if in at least one PI code a receivable A predetermined country code is included in the broadcast program for example those for Great Britain and / or Austria indicates.
  • the predetermined operating state is expediently manual or can be activated automatically.
  • An automatic activation of the predetermined operating state is then particularly advantageous if an operating state on the RDS radio receiver is activated in which the regional identifier is used for the evaluation of the PI code is taken into account (REG.-ON mode).
  • the method according to the invention is below a predetermined reception quality of the first Broadcast program automatically another one in the background memory stored radio program of the same transmitter chain on the RDS radio receiver set or, if no such radio program the next broadcast program is stored in the background memory set on the RDS radio receiver.
  • this shows a flow chart of a preferred one Embodiment of a method according to the invention using the example manual program scrolling by a user.
  • Regional-ON or Regional-OFF function denotes two operating states REG.-ON-MODE or REG.-OFF-MODE, whereby in REG.-ON-MODE when selecting an alternative frequency (AF) one in one Program identification code (PI code) of an RDS signal available Regional identifier is also evaluated.
  • PI code Program identification code
  • REG.-ON or REG.-OFF function also included for program browsing and for example automatically activated depending on a country code of the PI code or deactivated.
  • the automatic activation is especially in such Transmitter landscapes make sense in which many regional locations Broadcast programs of a transmitter chain with regionally different Program content can be received, such as in Great Britain or Austria.
  • a radio program is stored in the background memory is saved as a local identifier, always scrolled, regardless of whether the RDS radio receiver is in REG.-ON or REG: -OFF-MODE is located. So so-called local channels, for which there is no alternative frequency list (AF list), always scrolled (various local programs) and therefore have a special position on.
  • AF list alternative frequency list
  • This automatic function is dependent on a reception quality, for example a reception field strength, one at the moment RDS radio receiver set the first radio program activated.
  • the reception quality or the reception field strength is minimal Value undershot, and is in accordance with the regional code of the PI code does not have a better AF, so the program scrolls by the user not the radio program following in the memory jumped to with a different regional identifier in the PI code instead, a best selection from those stored in the background memory, related radio programs carried out by the first broadcast program in the PI code only through the regional identifier differentiate.
  • the inventive method with an automatic selection a related radio program stored in the background memory to use.
  • the method starts in step 10 when switching on the RDS radio receiver, a first Radio program is set on the RDS radio receiver.
  • a country code is saved in the PI code for Great Britain or Austria is. If this is the case, the REG.-ON-MODE is automatically set in font 14 activated, otherwise in REG.
  • Step 14 the REG.-OFF-MODE activated if REG.-ON mode was previously activated. Otherwise in Step 16 checked for a program sheet button on the RDS radio receiver was operated manually by a user. Is this if not, the system returns to Scripture 12. Otherwise it is in writing 18 checked whether the RDS radio receiver is in the REG-ON or REG.-OFF mode. In REG.-OFF mode, the 20 Background memory following the first radio program Broadcast program set on RDS radio receiver and closed scripture 12 returned. In REG.-ON-MODE it is checked in Scripture 22, whether the first broadcast program has a predetermined reception field strength exceeds or not.
  • step 28 then becomes the second radio program on the RDS radio receiver which is the best reception field strength having.
  • an RDS signal error rate or multipath disorders are checked and optimized.
  • Step 26 If in Step 26 turns out that there is no other broadcast program in the background memory is included, which differs from the first radio program only differs in the regional code in the PI code, so in Step 28 that in the background memory of the first radio program subsequently stored radio program on the RDS radio receiver set. According to scripture 28, the process returns Step 12 back.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
EP99114652A 1998-10-13 1999-07-27 Méthode pour sélectionner un programme de radiodiffusion dans une mémoire supplémentaire d'un récepteur, capable de capter des signaux RDS Ceased EP0994587A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19847018 1998-10-13
DE1998147018 DE19847018A1 (de) 1998-10-13 1998-10-13 Verfahren zur Auswahl eines Rundfunkprogramms aus einem Hintergrundspeicher eines RDS-Rundfunkempfängers in logischer Folge

Publications (2)

Publication Number Publication Date
EP0994587A2 true EP0994587A2 (fr) 2000-04-19
EP0994587A3 EP0994587A3 (fr) 2004-03-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP99114652A Ceased EP0994587A3 (fr) 1998-10-13 1999-07-27 Méthode pour sélectionner un programme de radiodiffusion dans une mémoire supplémentaire d'un récepteur, capable de capter des signaux RDS

Country Status (2)

Country Link
EP (1) EP0994587A3 (fr)
DE (1) DE19847018A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0415132A2 (fr) * 1989-08-31 1991-03-06 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. Récepteur de radiodiffusion avec RDS muni d'un dispositif de commutation automatique sur un programme régional alternatif
GB2240679A (en) * 1990-01-31 1991-08-07 Pioneer Electronic Corp Method of selecting receiving frequency in RDS receiver
EP0459360A2 (fr) * 1990-06-01 1991-12-04 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig GmbH & Co. KG Récepteur radio avec RDS muni d'un dispositif pour la recherche de fréquences alternatives recevables en temps réel
US5345606A (en) * 1989-04-28 1994-09-06 Robert Bosch Gmbh RDS radio receiver with user-definable-region filtering

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5345606A (en) * 1989-04-28 1994-09-06 Robert Bosch Gmbh RDS radio receiver with user-definable-region filtering
EP0415132A2 (fr) * 1989-08-31 1991-03-06 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. Récepteur de radiodiffusion avec RDS muni d'un dispositif de commutation automatique sur un programme régional alternatif
GB2240679A (en) * 1990-01-31 1991-08-07 Pioneer Electronic Corp Method of selecting receiving frequency in RDS receiver
EP0459360A2 (fr) * 1990-06-01 1991-12-04 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig GmbH & Co. KG Récepteur radio avec RDS muni d'un dispositif pour la recherche de fréquences alternatives recevables en temps réel

Also Published As

Publication number Publication date
DE19847018A1 (de) 2000-04-20
EP0994587A3 (fr) 2004-03-17

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