EP0495136A2 - Datenübertragungsverfahren bei RDS-Rundfunk - Google Patents

Datenübertragungsverfahren bei RDS-Rundfunk Download PDF

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Publication number
EP0495136A2
EP0495136A2 EP91100403A EP91100403A EP0495136A2 EP 0495136 A2 EP0495136 A2 EP 0495136A2 EP 91100403 A EP91100403 A EP 91100403A EP 91100403 A EP91100403 A EP 91100403A EP 0495136 A2 EP0495136 A2 EP 0495136A2
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EP
European Patent Office
Prior art keywords
data
code
group
station
broadcasting
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Withdrawn
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EP91100403A
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English (en)
French (fr)
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EP0495136A3 (en
Inventor
Koichi c/o Pioneer Electric Corporation Kasa
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Pioneer Corp
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Pioneer Electronic Corp
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Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to EP19910100403 priority Critical patent/EP0495136A3/en
Publication of EP0495136A2 publication Critical patent/EP0495136A2/de
Publication of EP0495136A3 publication Critical patent/EP0495136A3/en
Withdrawn legal-status Critical Current

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    • 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
    • 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]
    • 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
    • H04H60/68—Systems specially adapted for using specific information, e.g. geographical or meteorological information
    • H04H60/73—Systems specially adapted for using specific information, e.g. geographical or meteorological information using meta-information

Definitions

  • the present invention relates to a method of transmitting data in the RDS broadcasting.
  • the RDS (Radio Data System) broadcasting is a broadcasting service in which, in the program broadcasting of a general broadcasting station, information relating to the broadcast such as information regarding the program content or the like is transmitted as data by a multiplex modulation.
  • the transmitted data is demodulated on the reception side, so that a desired program content can be selected on the basis of the demodulated data, thereby services are offered to a radio listener.
  • a signal of 57 kHz as a third harmonic of a stereo pilot signal of 19 kHz in a range out of a frequency band of a frequency modulated wave is used as a subcarrier.
  • the subcarrier is amplitude modulated into a radio data signal by a data signal which is filtered and biphase coded carrying information regarding the broadcasting such as program content and the like, and the amplitude modulated subcarrier is frequency modulated into the main carrier for the broadcasting.
  • Standards of the above broadcasting scheme were proposed by the European Broadcasting Union (EBU).
  • Fig. l showing a base band coding structure of a radio data signal
  • data of 104 bits are processed as one group and are repetitively transmitted through a multiplex transmission.
  • One group comprises four blocks each having 26 bits.
  • Each block comprises an information word of 16 bits and a check word of 10 bits.
  • Each group is classified into sixteen types, that is, Type 0 through Type 15 indicated by four bits according to the information content. Further, two versions A and B are defined for each of the types (0 to 15).
  • Figs. 2A and 2B show the format of groups of the types 0A and 0B, respectively.
  • a PI code of 16 bits composed of a country code, a broadcasting range code, and a program code is arranged in a block 1.
  • Various codes such as group type code, version code (B0), traffic information broadcasting station identification (TP) code, program content identification (PTY) code, and the like are arranged in a block 2.
  • TP traffic information broadcasting station identification
  • PTY program content identification
  • the PI code is arranged in the block 3. That is, the AF data of the network stations is transmitted by only the type 0A group.
  • the PS data is transmitted by the type 0A and 0B groups.
  • the AF data of the network stations which broadcast the same program as the program of the broadcasting station which is at present being received is also included in the radio data signal of the type 0A group.
  • the AF data and PI code which are obtained by the demodulation are retrieved and stored as an AF list. For instance, in the case where a receiving strength of the broadcasting station of the program which is at present being received isdecreased due to a disturbance such as a multipath interference or the like, another station in the same network stations is selected on the basis of the AF list which has previously been stored. Further, a check is made to see if the program which was received in accordance with the AF list is correct or not by comparing the PI codes. Thus, the same program can be listened always in a good receiving state without being influenced by external disturbances.
  • the broadcasting station name is expressed by at most eight alphabet letters.
  • the PS data of at most eight digits indicative of the broadcasting station name in the type 0A or 0B group, the data of two letters (8 bits ⁇ 2) is transmitted on a group unit basis.
  • the data of eight letters is transmitted.
  • the PS data in the group which is being transmitted belongs can be known by checking the content of PS address codes (C1, C0) in the block 2.
  • the transmitted PS data- is demodulated on the reception side and is displayed as a broadcasting station name by up to eight alphabet letters.
  • the PS data is transmitted every two letters for four groups on the basis of the type 0A or 00 group. Therefore, if the PS addresses in the block 2 are wrong, start of the display of the broadcasting station name by the PS data of up to eight digits will be delayed, for example.
  • a free station or the like which doesn't have a station frequency list (AF list) of the network stations, in the case of the type 0A group, the data transmitting ratio decreases because the AF data to be transmitted in the block 3 does not exist.
  • AF list station frequency list
  • these can exist a station which broadcasts a different program for only a certain time zone (or time period) so as to temporarily switch from the national network broadcasting to a local broadcasting.
  • the PI code for instance, a part of the code
  • the PI code is changed for only such a time zone.
  • the PI code transmitted by the station which always performs the national network broadcasting is expressed by PI.
  • the PI code transmitted for only a certain time zone by the station which performes a local broadcasting for only such a time zone is expressed by PI'.
  • the program of the station of the PI code of PI' is being received.
  • the program of the station of PI' is being received, for instance, if a broadcasting region has changed as the movement of the vehicle, it will result in the deterioration of the receiving state of the PI' station.
  • another PI' station is selected on the basis of the AF list by comparing the PI' codes.
  • the present invention is based on the recognition of the drawbacks described in the foregoing and it is an object of the invention to provide a data transmitting method in the RDS broadcasting in which, when the data group in the form of the group unit comprising four blocks is transmitted while being inserted into a radio broadcasting wave and transmitted, data is effectively inserted into each block, and upon reception, the inserted data can be effectively utilized.
  • Another object of the invention is to provide a method of transmitting broadcasting station name data in the RDS broadcasting, in which the broadcasting station name can be promptly displayed on the reception side and even in a free station or the like having no AF list, without reducing the data transmitting ratio.
  • Still another object of the invention is to provide a method of transmitting a PI code in the RDS broadcasting in which at the time of the reception of a local broadcasting for example, when the receiving state deteriorates, another station in the same network stations can be received even if another station of the same local broadcasting cannot be received.
  • a method of transmitting a broadcasting station name in an RDS broadcasting in which a data group comprising four blocks is treated as one group and the data group of the group unit is repetitively inserted into a radio broadcasting wave for the transmission, the transmitting method transmitting broadcasting station name data of up to eight digits indicative of the broadcasting station name which is expressed by up to eight letters.
  • the broadcasting station name data is separated into the data of high order four digits and the data of low order four digits, the data of the high order four digits is used as the data of the third and fourth blocks in one group, the data of the low order four digits is used as the data of the third and fourth blocks in another group, and those data are respectively transmitted.
  • ID information indicating to which one of the high order and low order data the containing data of each group belongs is inserted into the second block of each group.
  • the broadcasting station name data of up to eight digits is transmitted as the data of the third and fourth blocks in each group every four high order digits and four low order digits, respectively.
  • a check is made to see if the received data relates to the data of the upper four digits or the data of the low order four digits.
  • Each data is demodulated, so that the broadcasting station name is displayed.
  • a PI code transmitting method is provided according to the invention, in an RDS broadcasting in which a group of data comprising four blocks is treated as one group and the data group of such a group unit is repetitively inserted into a radio broadcasting wave for the transmition, the method inserting PI codes of the same network stations into the first and third blocks in one and transmitted, whereby the PI code of the station itself is transmitted as a PI code of the first block. If the station which broadcasts a program different from the program of the station itself for only a predetermined time zone exists in the same network stations, the PI code of such a station is transmitted as a PI code of the third block.
  • the PI code of the station itself is transmitted as the PI code of the first block, and if the station which broadcasts a program different from the program of the station itself for only a predetermined time zone exists in the same network stations, the PI code of such a station is transmitted as the PI code of the third block.
  • the PI codes of the first and third blocks are retrieved and stored and either one of the PI codes is compared with the received PI code. Therefore, even if the station which is at present broadcasting the same program as that of the station itself cannot be selected, another station in the same network stations is selected.
  • Figs. 3A and 3B are diagrams showing the format of two kinds of radio data signals to which the transmitting method of broadcasting station name data according to the invention is applied.
  • Each of the two kinds of radio data signals has the same base band coding structure as that of the conventional example.
  • One hundred and four (104) bits are set to one group.
  • One group comprises four blocks each consisting of 26 bits.
  • Each block comprises an information word of 16 bits and a check word of 10 bits and is used to transmit PS data. Therefore, the two kinds of radio data signals have format constructions corresponding to the group types 0A and 0B shown in Figs. 2A and 2B. It is now assumed that the group types are set to, for instance, 9A and 9B.
  • the PS data Upon transmission of the PS data of up to eight digits, the PS data is divided into the data of high order four digits and the data of low order four digits.
  • the PS data (PS7 to PS4) of the high order four digits is transmitted by the type 9A group.
  • the PS data (PS3 to PS0) of the low order four digits is transmitted by the type 9B group.
  • the PS data of four digits is arranged in the blocks 3 and 4 every two digits, respectively.
  • the group type is discriminated by the group type code arranged in the block 2 in a manner similar to the conventional method.
  • discrimination regarding the high order or low order digits of the PS data is performed by discriminating a version A or B on the basis of a version code (B0) arranged in the block 2. Since the high order or low order digits of the PS data can be discriminated by the version code (B0), in the case of considering the correspondence between the group types 0A and 0B.
  • the PS address codes (C1, C0) arranged in the blocks 2 in the group types 0A and 0B are unnecessary. Therefore, those two bits can be used to transmit another data.
  • Fig. 4 shows an example of a fundamental construction of the RDS receiver.
  • an FM multiplexed broadcasting wave which was received by an antenna l is input to a front-end 2, by which a desired station is selected and the signal of the selected station is converted into an intermediate frequency (IF).
  • the signal is supplied through an IF amplifier 3 to an FM detector 4.
  • the front-end 2 employs a PLL synthesizer system using a PLL circuit including a programmable frequency divider.
  • a frequency dividing ratio of the programmable frequency divider is controlled by a controller 13, which will be explained later, so that a station selecting operation is performed.
  • a detection output of the FM detector 4 is supplied to an MPX (multiplex) demodulating circuit 5 and is separated into audio signals of the L (left) and R (right) channels in the case of a stereophonic broadcasting.
  • a subcarrier of 57 kHz, which is amplitude modulated by a biphase coded data signal, that is a radio data signal is extracted and is demodulated by a PLL circuit 7.
  • the demodulated output is supplied to a digital the PLL circuit 8 and a decoder 9.
  • clocks for data demodulation are produced on the basis of the demodulated output of the PLL circuit 7.
  • the biphase coded data signal as the demodulated output of the PLL circuit 7 is decoded synchronously with the clocks produced by the D-PLL circuit 8.
  • a locking state detecting circuit 10 detects locking and unlocking states of the D-PLL circuit 8. Locking ranges of the PLL circuit 7 and D-PLL circuit 8 are switched by a detection output of the detecting circuit 10.
  • Output data of the decoder 9 has the group unit of 104 bits comprising four blocks each consisting of 26 bits as shown in Fig. 1 and is sequentially supplied to a group/block sync & error detecting circuit 11.
  • a group/block sync & error detecting circuit 11 synchronization between the group and the block is performed on the basis of an offset word of 10 bits which were respectively assigned to the check word of 10 bits of each block. Further, errors in the information word of 16 bits are detected on the basis of the check word.
  • the error detected data is error corrected by an error correcting circuit 12 at the next stage and, thereafter, it is supplied to the controller 13.
  • the controller 13 is constructed by a microcomputer and fetches code information of each block in the radio data which is sequentially input on a group unit basis, that is, radio information regarding the program content of the broadcasting station which is at present being received and stores into the RAM 14.
  • the controller 13 executes a station selecting operation by controlling a frequency dividing ratio of the programmable frequency divider (not shown) of the PLL circuit constituting a part of the front-end 2 on the basis of a station selection command from an operating section 15.
  • the receiving frequency of the selected station is stored into the RAM 14.
  • a detection output of a level detecting circuit 16 for detecting that a signal intensity, namely, field intensity has decreased to a value of a set level or less on the basis of the IF signal level is also supplied to the controller 13.
  • the controller 13 determines that a receiving state of the broadcasting station of the program which is at present being received deteriorated. Therefore, the controller 13 controls the frequency dividing ratio of the programmable frequency divider so as to select another network station on the basis of the as data of the network stations which have previously been stored in the RAM 14.
  • a matrix display device 17 which can display eight letters such as numerals, alphabet letters, etc., is connected to the controller 13 through a driving circuit 18. Character pattern data to be displayed by the display device 17 has previously been stored in a ROM 19. The character pattern data of a letter to be displayed is read out from the ROM 19 by the controller 13 and is loaded into a buffer (not shown) in the driving circuit 18, so that the corresponding letters are displayed by the display device 17.
  • the processor After the completion of the selecting process of a desired station, the processor first fetches the output data of the decoder 9 (step S1). A check is made to see if the group type of the received radio data signal is "9" or not from the content of the group type code arranged in the block 2 (step S2). If the group type is not "9", the processing routine is finished.
  • the processor checks to see if the version of the group type 9 is equal to "A” or not from the content of the version code (B0) arranged in the block 2 (step S3). If the version is "A”, the PS data in the Blocks 3 and 4 are fetched as the PS data (PS7 to PS4) of the high order four digits (step S4). If the version is set to D, the PS data in the blocks 3 and 4 are fetched as the PS data (PS3 to PS0) of the low order four digits (step S5). Then, the processor checks to see if the number n of PS data fetching times on a group unit basis has been set to 2 or not (step S6). If n ⁇ 2, the value of n is incremented By "+l” (step S7). After that, the processing routine is returned to step S3.
  • step S11 If any one of the PS data D1, ..., D N doesn't coincide, the value of M is reset to l (step S12). After that, the processing routine is returned to step S3 and the above processes are repeated. As mentioned above, by fetching the PS data M times and confirming that all of the PS data coincide, the reliability of the PS data can be raised.
  • the processor writes the PS data into a predetermined memory area in the RAM 14 (step S13).
  • a PS display subroutine for displaying the broadcasting station name based on the PS data by the display device 17 is executed (step S14).
  • the PS data stored in the RAM 14 is read out and the character pattern corresponding to the letter indicated by the PS data is read out of the ROM 19 and supplied to the driving circuit 18. Due to this, the broadcasting station name is displayed by the display device 17. The display content is held until another station is selected.
  • Fig. 6 shows a part of a flowchart showing a processing procedure of the PS data in the above case.
  • the discrimination regarding the version A or B by two steps by also using two bits corresponding to the PS address codes (C1, C0) in the blocks 2 in the group types 0A and 0B the discrimination about the version A or B, that is, the discrimination regarding whether the PS data is the data of the high order digits or the data of the low order digits can be more certainly performed.
  • the PS data of up to eight digits is respectively transmitted as the data of the third and fourth blocks in each group every high order four digits and every low order four digits, so that on the reception side, upon reception of a special group, by merely checking to which one of the two groups of the versions A and B the special group belongs, the PS data of up to eight digits can be confirmed. Therefore, the broadcasting station name can be promptly displayed. Moreover, even in a free station or the like having no AF list, the data transmitting ratio does not decrease.
  • Figs. 7A and 7B are diagrams showing formats of radio data signals to which the PI code transmitting method according to the invention was applied.
  • Each of the radio data signal has the same base band coding structure as that of the conventional one.
  • One hundred and four (104) bits are set to one group.
  • One group comprises four blocks each consisting of 26 bits.
  • Each block comprises an information word of 16 Bits and a check word of 10 bits.
  • Each of the radio data signals has a format construction corresponding to the group type 0B shown in Fig. 2B.
  • the radio data signal is transmitted from each of the same network stations for such a time zone.
  • the invention has a feature in the PI code transmitting method in the blocks l and 3 in one group.
  • the PI code of the station itself is transmitted as the PI code of the block l. If a station which broadcasts a program different from the program of the station itself for only a certain time zone exists in the same network stations, the PI code of such a station is transmitted as the PI code of the block 3.
  • the PI code in the block 3 is equalized to the PI code in the block l in a manner similar to the case of the group type 0B. That is, assuming that the PI code which is transmitted by the station which executes a national network broadcasting is set to PI and the PI code which is transmitted for a special time zone by the station which executes a local broadcasting is set to PI', in the station which performs the national network broadcasting, as shown in Fig. 7A, the transmission of the PI code is executed such that the PI code in the block l is set to PI and the PI code in the block 3 is set to PI'.
  • the transmission of the PI code is executed such that the PI code in the block l is set to PI', and the PI code in the block 3 is set to PI as shown in Fig. 7B.
  • Fig. 8 shows another example of a fundamental construction of the RDS receiver.
  • the controller 13 is constructed by a microcomputer.
  • the code information of each block in the radio data which are sequentially input on a group unit basis, that is, the radio data information such as PI code, AF data, PS data, and the like regarding the program content of the broadcasting station which is at present being received are fetched and stored into the memory 14.
  • a frequency dividing ratio of the programmable frequency divider (not shown) of the pll circuit constructing a part of the front-end 2 is controlled on the basis of a station selection command from the operating unit 15, thereby executing a station selecting operation.
  • the level detecting circuit 16 to detect the reception signal level (electric field intensity) on the basis of the IF signal level in the IF amplifier 3 is provided. There is also provided a station detecting circuit 20 for detecting a reception station and outputting a station detection signal when the IF signal level in the IF amplifier 3 is equal to or higher than a predetermined level and a detection output level of what are called S curve characteristics in the FM detector 4 lies within a predetermined level range.
  • the reception signal level which is detected by the level detecting circuit 16 and the station detection signal which is output from the station detecting circuit 17 are supplied to the controller 13.
  • the processor first discriminates whether a request to switch the station to another station in the same network stations exists or not (step S101).
  • the switching request is generated in the case where, for instance, the reception signal level of the present receiving frequency is equal to or less than a set level. If the switching request has been generated, the processor fetches the PI codes (PI1, PI3) in the blocks l and 3 which are obtained from the broadcasting wave which is at present being received and the AF data of a receiving frequency f d and holds into an accumulator or the like (step S102). After that, the AF data of 1 in the list is read out of the memory 14 in accordance with the foregoing AF list (step S103).
  • the tuning operation is performed (step S104).
  • the processor fetches the PI code (PI AF ) in the block 1 which is obtained from the broadcasting wave of the new reception station (step Sl05).
  • a check is made to see if the PI code (PI AF ) coincides with the PI code (PI1) in the block 1 which was held in step S102 or not (step S106). If they coincide, the station frequency of the reception station is directly set to the new receiving frequency and the operating mode is shifted to the normal receiving mode. Due to this, if the reception station which has been received so far is the station which is executing, for instance, a local broadcasting, the broadcasting wave of the station which is executing the same local broadcasting can be subsequently received in the same network stations.
  • step S106 determines whether the PI codes are different from eath other. If it is determined in step S106 that the PI codes are different from eath other, the processor subsequently checks to see if the PI code (PI AF ) which is retrieved from the new reception broadcasting wave coincides with the PI code (PI3)in the block 3 which was held in step S102 or not (step S107). If the codes coincide with each other, the station frequency of the reception station is directly set to a new receiving frequency and the operating mode is shifted to the normal receiving mode.
  • PI AF the PI code
  • the reception station so far is a station which is performing the local broadcasting, even if a station which performs the same local broadcasting does not exist in the same network stations or cannot be found out, another station which is performing the national network broadcasting can be received in the same network station.
  • step S107 the processor checks to see if the comparison of the PI codes for the frequencies of all of the network stations has been finished or not (step S108). If the answer is NO, the processing routine is returned to step S103 and the above processes are repeated and the frequency of the same network stations which was first determined that the PI codes coincided in step S106 or S107 is set to the new receiving frequency.
  • step S109 the station in which the PI code which coincides with the PI code (PI1 or PI3) in the block l or 3 is provided in the block 1 does not exist or cannot be found out, the AF data held in step S102 is accessed and the frequency is reset to the original receiving frequency f d (step S109).
  • Fig. 10 is a flowchart showing a processing procedure upon station selection in the same network stations based on the PI code.
  • the steps to execute the same processes as those in Fig. 9 are designated By the same reference numerals.
  • discrimination regarding whether the PI code (PI AF ) which was fetched from the new reception broadcasting wave coincides with the PI code (PI1) in the block 1 which was held in step S102 or not is performed with respect to the frequencies of all of the network stations.
  • F 0
  • step S108 If the PI codes differ, a check is made to see if the comparison regarding the PI code (PI3) for the frequencies of all of the network stations has been finished or not (step S108). If the answer is NO, the processing routine is returned to step S103 and the above processes are repeated.
  • the PI code transmitting method of the invention when the PI code of the same network stations is inserted into the first and third blocks in one group and transmitted, the PI code of the station itself is transmitted as the PI code in the first block and, in the case where the station which broadcasts a program different from the program of the station itself for only a predetermined time zone exists in the same network stations, the PI code of such a station is transmitted as the PI code in the third block. Therefore, when receiving the PI code, the PI codes in the first and third blocks are fetched and stored and either one of the same network stations can be certainly selected by comparing either one of the PI codes in the first and third blocks and the reception PI code. Thus, for instance, when the receiving state deteriorated upon reception of the local broadcasting, even if the station of the same local broadcasting cannot be received, the broadcasting wave of another station in the same network stations can be received.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
EP19910100403 1991-01-15 1991-01-15 Method of transmitting data in rds broadcasting Withdrawn EP0495136A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19910100403 EP0495136A3 (en) 1991-01-15 1991-01-15 Method of transmitting data in rds broadcasting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19910100403 EP0495136A3 (en) 1991-01-15 1991-01-15 Method of transmitting data in rds broadcasting

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EP0495136A2 true EP0495136A2 (de) 1992-07-22
EP0495136A3 EP0495136A3 (en) 1993-03-17

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Cited By (7)

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EP0666659A2 (de) * 1994-02-01 1995-08-09 The Mitre Corporation Übertragung von zusätzlichen Daten auf einem Unterträger einer Rundfunkübertragung
US5572201A (en) * 1994-08-05 1996-11-05 Federal Signal Corporation Alerting device and system for abnormal situations
EP0748073A1 (de) * 1995-06-07 1996-12-11 Telediffusion De France Nachrichtenübertragungsprotokoll für Zugangskontrolle für RDS-Anwendung, bzw. Übertragungs- und Empfangsvorrichtung dafür
EP0751639A1 (de) * 1995-06-30 1997-01-02 STMicroelectronics S.r.l. Verfahren, Sender und Empfänger für die Übertragung und die Empfang von Informationen; Informationsrundfunk und insbesondere Radiodatensystem
WO1997015998A1 (en) * 1995-10-24 1997-05-01 Philips Electronics N.V. A radio broadcasting system, a transmitter and a receiver for use in such a system, a radio broadcasting method and a radio broadcasting signal
EP0844753A2 (de) * 1996-11-22 1998-05-27 Volkswagen Aktiengesellschaft Verfahren und Vorrichtung zur Auswertung von digitalen Zusatzinformationen eines Rundfunkprogramms
EP0975108A2 (de) * 1998-07-20 2000-01-26 Robert Bosch Gmbh Verfahren und Vorrichtung zum Abspeichern von Sendernamen von Rundfunksendern mit Radiodatenübertragungen

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EP0305172A2 (de) * 1987-08-24 1989-03-01 British Broadcasting Corporation Empfänger für RDS
WO1990007237A1 (en) * 1988-12-15 1990-06-28 British Broadcasting Corporation Improvements to rds radio system
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JPS6444630A (en) * 1987-08-12 1989-02-17 Pioneer Electronic Corp Rds receiver
EP0305172A2 (de) * 1987-08-24 1989-03-01 British Broadcasting Corporation Empfänger für RDS
WO1990007237A1 (en) * 1988-12-15 1990-06-28 British Broadcasting Corporation Improvements to rds radio system
WO1990010981A1 (en) * 1989-03-08 1990-09-20 N.V. Philips' Gloeilampenfabrieken Method for linking rds programme services and rds

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EUROPEAN BROADCASTING UNION, tech. 3244-E, March 1984, pages 1-60, Brussel, BE; "Specifications of the radio data system RDS for VHF/FM sound broadcasting", page 17, paragraph 1.3.1. *
PATENT ABSTRACTS OF JAPAN, vol. 13, no. 243 (E-768), 7th June 1989; & JP-A-01 044 630 (PIONEER ELECTRONIC CORP.), Abstract. *

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EP0666659A2 (de) * 1994-02-01 1995-08-09 The Mitre Corporation Übertragung von zusätzlichen Daten auf einem Unterträger einer Rundfunkübertragung
EP0666659A3 (de) * 1994-02-01 1997-09-17 Mitre Corp Übertragung von zusätzlichen Daten auf einem Unterträger einer Rundfunkübertragung.
US5572201A (en) * 1994-08-05 1996-11-05 Federal Signal Corporation Alerting device and system for abnormal situations
FR2735311A1 (fr) * 1995-06-07 1996-12-13 Telediffusion Fse Protocole d'emission de messages de controle d'acces a des applications rds, dispositifs d'emission et de reception correspondants.
EP0748073A1 (de) * 1995-06-07 1996-12-11 Telediffusion De France Nachrichtenübertragungsprotokoll für Zugangskontrolle für RDS-Anwendung, bzw. Übertragungs- und Empfangsvorrichtung dafür
EP0751639A1 (de) * 1995-06-30 1997-01-02 STMicroelectronics S.r.l. Verfahren, Sender und Empfänger für die Übertragung und die Empfang von Informationen; Informationsrundfunk und insbesondere Radiodatensystem
US6973056B2 (en) 1995-06-30 2005-12-06 Sgs-Thomson Microelectronics S.R.L. Information transmitting and receiving method and corresponding transmitter and receiver
WO1997015998A1 (en) * 1995-10-24 1997-05-01 Philips Electronics N.V. A radio broadcasting system, a transmitter and a receiver for use in such a system, a radio broadcasting method and a radio broadcasting signal
EP0844753A2 (de) * 1996-11-22 1998-05-27 Volkswagen Aktiengesellschaft Verfahren und Vorrichtung zur Auswertung von digitalen Zusatzinformationen eines Rundfunkprogramms
EP0844753A3 (de) * 1996-11-22 2004-01-14 Volkswagen Aktiengesellschaft Verfahren und Vorrichtung zur Auswertung von digitalen Zusatzinformationen eines Rundfunkprogramms
EP0975108A2 (de) * 1998-07-20 2000-01-26 Robert Bosch Gmbh Verfahren und Vorrichtung zum Abspeichern von Sendernamen von Rundfunksendern mit Radiodatenübertragungen
KR20000011827A (ko) * 1998-07-20 2000-02-25 클라우스 포스, 게오르그 뮐러 알디에스-방송수신기의송신명을저장하기위한방법과장치
EP0975108A3 (de) * 1998-07-20 2001-12-19 Robert Bosch Gmbh Verfahren und Vorrichtung zum Abspeichern von Sendernamen von Rundfunksendern mit Radiodatenübertragungen

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