EP0610313B1 - Radio transmission system and radio receiver - Google Patents

Abstract

PCT No. PCT/EP92/02448 Sec. 371 Date Jul. 25, 1994 Sec. 102(e) Date Jul. 25, 1994 PCT Filed Oct. 26, 1992 PCT Pub. No. WO93/09615 PCT Pub. Date May 13, 1993The present invention provides for an analog and/or digital radio broadcast transmission system and radio receiver therefor, which includes a control signal having an item of control information concerning another, different type of transmission/receive system. The receiver is a hybrid receiver able to receive both types of signals. When the same program material is available on both of the different systems, the control signal is used for switching the different systems so that the receiver receives the program on the system which provides the best reception.

Description

There are FM, FM and / or AM radio receivers with which in known way an analog FM radio and / or AM radio signal received, processed and the corresponding audio and / or video signals are reproduced in a suitable manner. Such radio receivers - hereinafter also as analog Designated radio receiver - there are in various Embodiments as audio and / or video broadcast receivers with and without recording unit. Not just radio broadcasting, is also the classic sound broadcast of television broadcasting realized with frequency modulation (FM).

From the British Broad-casting Corporation's BBC RD 1982/2 research report "LF Radio-Data: Specification of the BBC experimental transmissions 1982", August 1982, "Specifications of the R adio D ata S ystem RDS for VHF / FM sound broadcasting" , EBU, Document Tech. 3244-E (March 1984) is a transmission method for additional information - radio data system, abbreviated to RDS (= DIN EN 50067) - known only for FM, FM and / or AM broadcasting, in which an auxiliary carrier and / or the AM radio signal carrier is modulated with an additional information or identification signal and in which on the receiving side the auxiliary carrier or the AM radio signal carrier demodulates with respect to the additional information signal, the additional information signal obtained is decoded and the decoded additional information for tuning and / or reproduction purposes in a FM radio - and / or AM radio receiver is used.

Radio systems and associated transmitters and receivers, as well as parts thereof, have recently been developed with which broadcast signals (DAB, DSR, MAC) which are incompatible with VHF-FM and / or AM and PAL as well as digitally transmitted, received, processed and more suitable Way can be reproduced. While with DSR (= digital satellite broadcasting) the transmission of the digitally coded audio broadcast signals via satellite and / or cable transmission links in the 12 GHz and / or 118 MHz range is realized, with DAB (= D igital A udio B roadcasting) in addition to the Satellite transmission, in particular the terrestrial transmission in the VHF VHF range, is provided in a digitally operated single-wave network, the information from, for example, six stereo programs being interleaved and distributed over a total of 1536 carrier frequencies (multiple "digital" frequencies) of a 1.5 MHz multiplex signal. Both DAB and DSR allow high-quality reproduction of the audio signals in CD quality.

Digital radio via broadcasting satellites and / or cable routes has been in the Federal Republic of Germany since 1986 introduced and e.g. from the brochure "Digital radio on broadcasting satellites ", information brochure of the Federal Minister for research and technology, known in 1982. The DSR devices realized so far are only in the Able to receive and receive digitized radio broadcast signals to process. An alternative reception of analog radio signals on the conventional wavebands FM, MW, KW and LW is due to the incompatibility between analog and digitized broadcast signals neither possible, nor intended.

Furthermore, it is part of the European research project EUREKA 147-DAB a digital audio broadcast transmission system DAB as a successor system for the previous VHF Broadcast developed. The basic features of DAB are e.g. in the magazine "Funkschau", issue 8, 1990, part of Funkschau special, Pages 9 - 18 described. There is only required (Page 16) that with a DAB car radio the reception of the classic wavebands should be possible as before.

In the following, DAB is generally used as an umbrella term for Broadcasting methods or systems in audio and / or Video area used where the sound and / or also Video signals (at least partially) digitally encoded is transmitted. FM FM and / or AM broadcasting is below generally as an umbrella term for broadcasting processes or Systems are used in which the sound signals are at any Way frequency and / or amplitude modulated and / or the Video signals e.g. as with PAL or SECAM not in one Time division multiplex can be transmitted as with MAC.

After the introduction of DAB will be for compatibility reasons also the previous FM radio in parallel for many years there is - a so-called simulcast broadcast - to previous FM-FM receivers during this transition period to be able to operate as usual.

In a DAB reception section, the tuning takes place in the previous television (UHF) range lying multiple carrier frequencies every DAB radio signal as well as the special one DAB signal demodulation, whereas in the DAB decoder one Channel and only source decoding (with Error correction and concealment) of the digitized Broadcast signals is made. Retrofitting existing ones FM and / or AM radio receiver with DAB receiver and DAB decoder is possible in principle, but also cost-sensitive and with many difficulties e.g. Space problems connected.

It is an object of the invention, an analog and / or digital Radio transmission system and a radio receiver with to develop little circuitry effort, which is a quick switch to the best reception of a desired program, which over different to each other incompatible transmission channels are broadcast, enables.

According to the invention, the task in a broadcast transmission system solved with the features of claim 1 or 2.

Advantageous further developments of the system are in the subclaims 3 - 7 described. Advantageous embodiments of a RDS / DAB decoders or an FM / FM / DAB receiver described in claims 8-18. Claim 19 describes one transmission arrangement according to the invention for an analog radio system, Claim 20 a transmission arrangement for a digital Broadcasting system e.g. DAB, MAC etc. Claim 21 describes a data signal according to the invention.

According to the invention of claim 1 is a terrestrial cross-divisional broadcasting system for FM-FM and / or AM broadcast proposed that with a analog FM, FM and / or AM broadcast signal of a program a first control signal as a transmission specific Identification signal is transmitted, which from an FM and / or FM AM radio receiver with a suitable control signal decoder decoded when receiving the broadcast signal and is processed. The first control signal is the same Program or program like the currently received program or another transmission system, e.g. DAB, assigned or destined for the VHF-FM transmission system in is in no way compatible. It also contains the first Control signal also optionally an information in which frequency range and / or which program position the corresponding DAB program can be received. The first Control signal is used to control one with the FM-FM receiver combined or connectable radio receiver used for digital broadcasting (DAB, DSR, MAC). From the presence of the first control signal itself, it can already preferably to transfer the program DAB to be closed. With the first control signal thus information about a from the FM-FM / AM system technically fundamentally different broadcast transmission system such as. DAB, DSR or MAC, D2-MAC, HD-MAC, PAL PLUS etc. transferred. The first control signal preferably contains all switching and / or control parameters for the one to be controlled Broadcast receiver for digital broadcasting (DAB, DSR, MAC), so that a quick switch to FM and / or FM AM reception on DAB reception is possible.

In claim 2 is a solution similar to claim 1 using a second control signal for a digital one Broadcasting system e.g. DAB, DSR, MAC etc. and one for it suitable recipient described.

The first and / or second control signal is preferably only then broadcast, even if the same program or the same program in the other transmission system is transmitted. When a program is regionalized, if at least temporarily this condition is no longer met then the control signals are not transmitted.

In the case of analog broadcasting, preference is given to as such hereinafter also referred to as FM radio and / or AM radio transmit the first control signal within the RDS data stream, so that the first control signal from the RDS decoder decoded and a digital radio receiver that works with the analog radio receiver connected in some way or coupled, is supplied. With the supplied first The control signal is connected to the FM-FM receiver controlled digital radio receivers, e.g. switched on and to receive a certain program signal prompted. Furthermore, with the first control signal, the analog one Radio receiver controlled, e.g. automatically muted, when the digital broadcast receiver is playing takes over. RDS or the transmission of the first control signal with RDS serves surprisingly according to the invention as a crucial technological key or bridge link between the previous analog broadcasting and the future Broadcasting like DAB, although RDS is according to its actual Determination according to and only for the analog Broadcasting is provided. A remote control according to the invention a DAB (FM, FM and / or AM) radio receiver via the FM-FM and / or AM (DAB) transmission channel simplifies the Operation of the receiver concerned in a rational manner.

As a first or second control signal, e.g. also a pilot carrier known from the television transmission system or a signal similar to ARI (Driver Broadcasting Information) or a certain auxiliary frequency or a certain one Phase value are used, such a control signal preferably transmitted outside the RDS transmission channel becomes.

For coordinating the digital and analog radio receiver are both receivers or receiving parts over at least a control line connected to each other. At least in one the two receivers is a control data evaluation circuit provided that the signals transmitted via the control line evaluates and controls both receivers.

According to the invention according to claim 8, it is proposed Combination radio receiver to train a first Radio receiving section for reception, processing and playback of analog radio signals, e.g. FM-FM and / or AM, and a second radio receiving part for reception, Processing and reproduction of digitally coded Includes broadcast signals (DAB, DSR), being for both Radio reception parts one or more common assemblies, in particular, a common control unit is provided are. So one or more assemblies such as Antenna, HF / IF stage, controls, speakers, LF signal processing, additional data decoder, display, Power supply and other suitable circuit parts etc. are arranged once in the radio receiver, the however, are assigned to both parts of the radio reception. Thereby can be a compact design of the radio receiver achieve that as fully mobile, portable and stationary receiver the advantages of digital reception like DAB compared to the previous FM-FM reception impressive way to make it clear to the user.

The radio receiver according to the invention is not only in the Location, analog as well as digitally coded audio and / or video broadcast signals to receive and process, but is characterized in particular by the fact that individual suitable Components or assemblies only once in the radio receiver are formed, preferably several of the aforementioned Broadcast signals, e.g. PAL / MAC or FM-FM / DAB, can be received, processed and reproduced and no impairment in the playback quality of the received Audio signal arises. Due to the unique arrangement of individual components or assemblies for both sub-recipients can be an economical implementation of such a hybrid receiver be achieved, the consumption of material and Resources is limited to the essentials and the jointly intended assemblies or components in the best possible way be exploited.

Such a radio receiver according to the invention has in particular the advantage that when DAB is introduced, the analogue radio broadcasting on the classic wavebands can be received and played back, increasing comfort and the associated playback quality considerably improved. In addition, the user is one of the invention Broadcast receiver does not depend on when DAB in what national or European scope is introduced and FM radio broadcasting gradually or completely abandoned becomes. Even after the complete abandonment of individuals or all analog FM radio signals is an inventive Radio receiver still usable.

Through a common control unit for the digital and analog receiving parts is in particular the best possible Setting the receiver and its playback quality too guarantee. It can also make it easy to use can be achieved.

It is analog / digital for one as described above Broadcast receivers of great advantage when introducing from DAB additionally, as already described, with a analog broadcast signal also a first control signal within the FM radio broadcast signal is transmitted for information of the user as well as for switching from analog Signal reproduction to digital signal reproduction and vice versa is usable.

Through such a cross-divisional FM-FM <--> DAB control signal transmission there are other significant advantages for the radio receiver according to the invention.

With the above RDS system is e.g. a list of alternatives FM-FM frequencies (AF code) of the same FM-FM and / or AM broadcast program broadcast. Now is the invention FM-FM radio receiver for example FM-FM reception set and receives the NDR 2 program there at 99.8 MHz, it makes sense if the same program too is offered via DAB as another alternative frequency a "digital" multiple frequency of DAB broadcast with the value of the corresponding program position of the desired Program in the DAB data stream within the AF list of the To transmit FM-FM signal. This "digital" AF and / or represents the value of the program position of the desired program represents the first control signal, which by means of a Control signal decoder, here an RDS decoder in analog Receiver decoded and in a data processing unit can be processed accordingly. The analog / digital The radio receiver can then be operated using the data processing unit so that when receiving such first control signal is switched to DAB reception to achieve the best possible playback quality. It is also useful, also via a DAB additional signal channel of the digital program signal the data from alternative To transmit frequencies of the AM or FM radio broadcast signals. The data format of the additional DAB data channel is preferred compatible with the RDS data format, so that an RDS data evaluation circuit also for the evaluation of additional DAB signals can be used. For example, if a mobile Receiver to the spread limit of a currently set and reproduced digital program signal comes can abort the playback abruptly. In one Case can be timely on alternative analog FM or FM AM reception can be switched, causing the corresponding Program also outside the DAB broadcast area can still be received if the AM or FM reception area larger than the DAB broadcast area is what e.g. by remote reception phenomena of analog broadcasting can happen. Preferably in the DAB additional data channel but also encoded information about the Number of transmitted in a COFDM multiplex signal Broadcast radio programs, this information being received for evaluation and adjustment to the desired Program can be used.

Fig.1a

einen erfindungsgemäßen Rundfunkempfänger gebildet durch Rundfunkempfänger für den Empfang von digital codierten Audio-Rundfunksignalen und/oder UKW-FM- und/oder AM-Rundfunksignalen.

Fig. 1b

eine Alternativdarstellung zu Fig. 1a

Fig.2a-b

verschiedene RDS-Datenforamte vom Gruppentyp 2

Fig.3

ein Blockschaltbild einer Bedienungseinrichtung für einen Rundfunkempfänger nach Fig. 1

Fig.4

ein Blockschaltbild eines UKW-FM-Empfängers, der über eine Steuerleitung mit einem DAB-Empfänger verbunden ist.

Fig. 5

ein Flußdiagramm einer Bedienungseinrichtung

Fig. 6

eine Blockschaltbild einer Senderanordnung

Fig. 7

ein Flußdiagramm einer PI-Codeauswertung

Fig. 8

ein Blockschaltbild einer erfindungsgemäßen Sende- und Empfangsanordnung für Fernsehen

Fig.9

einen Aufbau einer Anzeigeeinheit

The invention is explained in more detail below on the basis of several possible exemplary embodiments.
In the drawing:

Fig.1a

a radio receiver according to the invention formed by radio receiver for the reception of digitally coded audio radio signals and / or VHF-FM and / or AM radio signals.

Fig. 1b

an alternative representation to Fig. 1a

Fig.2a-b

various RDS data formats of group type 2

Fig. 3

2 shows a block diagram of an operating device for a radio receiver according to FIG. 1

Fig. 4

a block diagram of an FM FM receiver which is connected via a control line to a DAB receiver.

Fig. 5

a flowchart of an operating device

Fig. 6

a block diagram of a transmitter arrangement

Fig. 7

a flowchart of a PI code evaluation

Fig. 8

a block diagram of a transmission and reception arrangement for television

Fig. 9

a structure of a display unit

1a shows a radio receiver 0 which is capable of DAB broadcast signals as well as FM FM / AM broadcast signals received, processed and reproduced in a suitable manner. Individual modules are used for a digital receiver 5 as well as common for an FM FM / AM receiver section 6 utilized. Such a radio receiver can be used as a hybrid receiver can be referred to as it is fundamentally different Receiving parts 5 and 6 or an analog and has a digital reception train, as many as possible Assemblies or circuit parts combined for both receiving trains or "married".

Such a radio receiver can also be a television receiver 80 according to FIG. 8, the combined circuits for reception and for processing analog as well as digital audio and / or video signals contained in one or more of the well-known standards such as PAL, SECAM, NTSC, PALPlus, MAC, D2-MAC, HD-MAC etc. are transmitted. Additional signals like the first or second control signals can also be in one Vertical blanking gaps like the VPS or television text signals transmitted separately or together with these.

The analog as well as digitally coded are via an antenna 1 Broadcast signals received by the transmitters and one common HF / IF stage 2 supplied. Are the DAB reception frequencies in the previous transmission spectrum for FM-FM / AM can a single RF / IF stage 2 suitable for the transmission spectrum Tuning unit or tuner can be used. Is that DAB transmission / reception frequency outside the previous one Transmitting spectra for radio broadcasting, the reception frequency of the HF / IF level 2 can be extended to this or for both Receiving parts 5 and 6 are generally two or more separate HF / IF stages 2a and 2b according to FIG can be set to the required frequencies can. Under certain conditions like Satellite / terrestrial reception is beneficial, though the radio receiver for each receiving train 5 and 6 optimized and adapted and / or standardized and interchangeable HF / IF stages or HF / IF modules, because hereby in particular the observability of the respective Can recipient trains improve. This can be done easily switching from various programs from DAB to FM-FM or vice versa without delay in switching and thus reach without playback pauses. Will the Redistributed frequency range of DAB or FM-FM, only has to a replacement of the corresponding HF / IF stages or modules made that are designed for it.

The HF / IF stage 2 is coordinated by a joint body central control circuit or control unit (microprocessor) 3 realized. One controlled by the control unit 3 Input control circuit 4, also referred to as a splitter, conducts the received signal to the DAB receiving section 5 or the FM-FM / AM receiver 6 further. It is also possible that the signal present at the output of the HF / IF stage directly feed both receiving parts 5 and 6. The circuit 4 may then omitted. A common one is also advantageous Housing the receiver shown in Fig. 1 in a single housing, so that a compact design is guaranteed is hardly about the space required by previous analog receivers goes out.

In a DAB-specific digital signal processing circuit contained in the DAB receiving part 5, the received digitally coded but analogue transmitted audio signals are digitized by means of an A / D converter. With the appropriate design of the HF / IF stage 2 as a digital HF / IF stage or HF demodulator, the digitization of the received signals can already be carried out there. The actual digital signal processing is handled by at least two highly integrated circuits, an IF signal processor and an audio signal processor in the DAB receiving section (both not shown). The audio processor is in addition to a channel selection and channel decoding (ultiplex C oded O rthogonal Frequency Division M) in multiple frequencies according to the COFDM method (described in "Advanced digital techniques for UHF satellite sound broadcasting", EBU Technical Center, September 1988) transmitted digital broadcasting signals comprising a channel decoder and a source decoder made according to psychoacoustic aspects according to the MUSICAM subband decoding process (= _ M asking pattern Adapted U niversal S ubband I ntegrated C Oding a nd Multiplexing) with a DAB source decoders which, for example, a Polyphase filter for subband decoding contains, also take over the audio functions implemented in today's receiver concepts in analog circuit technology such as sound influencing, volume, fade control, balance etc.

MUSICAM is a method for baseband coding of audio signals. Achieved through the use of psychoacoustic phenomena it towards e.g. a linear coding with 16bit / 48kHz data reduction per mono signal 96kbit / sec, i.e. a reduction by a factor of 8. COFDM represents the channel coding in DAB and essentially solves that Problem of multipath terrestrial reception. Echo signals even contribute positively to the useful signal. The key to this is the distribution of the data stream over many e.g. 1536, Carrier with 4-PSK modulation of the individual carrier, orthogonal Carrier arrangement, the introduction of a guard interval for using the multi-way signals and interleaving the program signals in the time plane. A is used to select the program DAB tuner on each of the COFDM frequency ranges (all in a frequency range, e.g. TV channel 12) can be tuned, the COFDM decoder from this multiplex signal a stereo signal selects.

The HF / IF part 2 (or Splitter) delivers a signal from which the IF signal processor extracted the data stream contained in the DAB circuit 5. The data stream is structured as a frame (frames), each frame first a so-called headboard Header that contains the status information of the frame includes. Another part of the framework includes data, which are suitable for error detection. A The next part of the frame represents the actual digitized ones Audio data or audio samples. Another Part of the frame, the so-called stuffing bits placed between the audio data and scale factor protection bits. The decoder can display the information of the protection bits, which are called parity bits or CRC words (Cyclic Redundancy Code) are designed for scale factor error correction or -Use concealment. Another part of the framework are Additional signals so-called "program associated data" which also partially arranged in the head part and on the transmission side are defined.

At the output of the DAB circuit 5 there is a D / A conversion LF audio signal for further processing and playback Provided.

In FM-FM / AM receiving part 6 is known from the pre-filtered VHF FM / AM signal from the HF / IF preamplifier using Mixing in a mixing stage, demodulation in a demodulator and reinforcement and NF processing in one NF stage etc. obtained an LF signal and at the output of the circuit 6 made available.

Both receiving parts 5 and 6 are with a central control unit 3 or data and audio signal processor via uni and / or bidirectional control lines connected and are controlled by this or switched on / off. It can over an operating device 9 each the desired program in the desired setting individually for each receiving train can be set. Using the central control unit 3, which is designed as a microprocessor, is now each one of the signal outputs 7 or 8 of the circuits 6 or 5 muted and thus the desired audio signal played on the speakers 16. To mute like The of the is also suitable for LF signal processing central control circuit 3 controlled output control amplifier circuit 11, which has inputs that match the outputs 7 and 8 of the two receiving parts 5 and 6 are connected. Shielding means (not shown) are where necessary provided that prevent individual assemblies be disturbed by other modules.

Via an operating device 9, the central Control unit 3 appropriate operation and programming of the two receiving parts of the hybrid receiver will. On a common display 10 or screen 80 the desired information such as program name and / or area name via digital or analog Broadcast reception as well as operating and / or program steps displayed. With cross-divisional control signal transmission is a quick display of all of the area names possible via which the desired program can be received can.

The DAB-specific digital signal processing circuit 5 has a digital output 12, via the digitally coded Additional and / or user data and / or control signals output and with one on the hybrid radio receiver connected recording and / or playback device such as DAT, DCC, MOD can be recorded and played back. Preferably is the digital output 12 with the output of the Channel decoders connected, so that in a to the output 12th connected DAB recorder with a DAB source decoder data-reduced data and recorded as 16-bit PCM signals can be played. Furthermore, the hybrid radio receiver a first analog output 13, its analog values essentially in terms of information content the digitized values at output 12 of the DAB-specific digital signal processing circuit 5 correspond. The Signals from this output can also be transmitted using a connected recording and / or playback device be included.

The hybrid radio receiver also has a second one analog output 14 on that with the output of the FM / AM signal processing circuit 6 is connected. Both analog Outputs can also physically act as a single output be carried out on which always the NF signal to be reproduced or there is a first or second control signal and e.g. from a comparison measuring device is checked. It can be useful, also for the control unit 3, a separate unidirectional and / or bidirectional data input and / or output line 35 to be provided, via which e.g. Control data of the control device available at an output of the receiver and / or tax data, e.g. Details like a CT code known from RDS (Clock-Time and Date) or information about the type of transmission, for programming the Control device are fed, which are then stored can be or a recording / playback device for Control this can be fed.

The hybrid receiver also has a central memory 15 in which the with the analog broadcast signals like also with the additional signals transmitted with the digital radio signals as well as first and / or second control signals be saved and appropriately coordinated or signal processing or control of the individual circuits or circuit parts can be used. Furthermore 15 other data processing programs are in the memory and / or data for controlling voting, program setting, Playback, operation, display etc. saved. The RDS signals, additional DAB signals and / or the first and second Control signals are generated by the central control unit 3 processed and evaluated. A pre-evaluation of the above Signals with separate data processing and control circuits (not shown) in the FM-FM receiver section 6 and DAB receiving part 5 is also possible and can also be advantageous be.

2a shows the data format of group type two of the RDS data format. This data format is from the cite RDS specification known. GT is four bits long Group type code, in this example for group two. Of the PI code (program chain identifier) consists of a code (16 Bit) that gives the receiver a distinction between Nationality, program area / language area and program code allowed. The PI code is not for direct viewing provided that it is individual to each radio program assigned and is used to identify FM radio stations that broadcast the same program. This will Receiving part 6 in connection with one contained therein RDS decoder and the central control unit 3 in the position to an alternative FM frequency looking for, in the event that the tuned station becomes too bad. The AF code consists of a code (8 bits), which is an alternative carrier frequency of the contains the program listed in the PI code.

Fig. 2b shows that around a first control signal or second Identification date (claim 8) or control information extended data format 2a which from an FM FM / AM transmitter 60th 6 is broadcast. 2c shows a data format, in which the length of the data format according to FIG. 2a is obtained remains, however an AF code through an 8 bit information about a DAB program channel is replaced. While in data format 2b the block length of the format is expanded and the Number of AF codes compared to Fig. 2a is preserved, true in Fig. 2c the block length with the data format in Fig. 2a matches, but with one AF code word less. The 2c may possibly some advantages with the To have data processing with conventional RDS decoders. For The digitized first control signal becomes a safe transmission with its own error protection or special provided error-correcting data. From the existence of the formed as a first control signal DAB codes in the Broadcast receiver 0 with RDS decoder primarily examined in itself, the radio receiver can already quickly determine that the program currently being received via FM-FM or the program is also transmitted and received via DAB is. However, the DAB code optionally contains next to the information the frequency range to which the multiple limits are distributed, including the information at which program point the program in one of several program positions Data frame with several programs (see DSR - specification) is arranged. Preferably an ensemble of individual carrier frequencies of a data frame in the DAB code or e.g. the program identifier NDR 2 or the corresponding PI code and other control signals for the DAB receiving section 5 included in the DAB code.

Instead of inserting a DAB code in the list of AF codes can also use other tags in the RDS data office be made e.g. a typical one for DAB broadcasting Group type number GT, which for previous VHF-FM broadcasting none Applies or is not intended. Because the group type number is always present at the beginning of each block, is such a mark with DAB's own GT, e.g. one more GT number not assigned between the numbers 8 - 14, possibly For a quick evaluation is very advantageous, especially if if after the DAB-own GT also the corresponding to the current program or radio broadcast corresponding Program position is in the DAB area, so the corresponding immediately Program position can be called. Furthermore do not occur when using a DAB-own GT number Compatibility problems for the previous ones RDS decoder / receiver and their evaluation circuits on there ignore a GT number not defined for them.

If an RDS signal according to FIG. 2b or 2c is received, it is registered the RDS decoder or the data processing assigned to it and control circuit (Fig. 5), e.g. the central Control unit 3, based on the evaluation of the first control signal, that a particular program or program, for example NDR 2, can also be received via DAB. Will NDR 2 from User called via the control device 9, so the hybrid radio receiver switches automatically or after Operation of a button 30 for DAB reception by means of the DAB reception part 5 and switches the FM-FM receiver off or in a stand-by mode or continues to receive the set one FM-FM program, which is muted. A alternative frequency may no longer be called. The best possible reproduction quality is thus achieved. Switching from FM reception to DAB reception can thus can be realized as quickly as possible without the user itself must make such a switch. Is this first control signal or the DAB code after one or more times Try not to be decodable or evaluate, so it will desired program via the preset FM-FM frequency called or based on a known PI and / or AF code evaluation sought an alternative frequency with which the best reception is possible.

But also with the data format according to Fig. 2a it is for one Receiver possible to determine whether the currently received Program also transmitted and received digitally coded is. For this, e.g. 7 the PI code in the Control unit 3 assigned to the RDS decoder is evaluated. Here the transmitter identification of the PI code e.g. "NDR 2" as binary Value. Via a memory 15 stored comparison list, which the station IDs of the Contains stations that your program also via DAB or DSR broadcast, and by means of a comparison of the current received station identifier and the comparison list, can the switching criterion to DAB or within a very short time DSR reception can be determined. Preferably the Comparison list saved until it is replaced by a new one Comparison list is replaced. Since it is possible on one "digital" frequency several DAB programs and others Data channels to be transferred simultaneously is the exclusive indication of the "digital" frequency with the DAB code according to Fig. 2b or 2c for a switchover may insufficient, so that a subsequent comparison of the PI codes of both transmission systems with or without comparison list may be necessary.

If the program identification signal SK-PI for NDR 2 matches with one of the program identification signals listed in the comparison list SK-DAB 0 ... n either opens automatically DAB reception of the desired program switched or the User displayed, so that switching by pressing a specific key e.g. the button 30 of the operating device 9 (Fig. 3) can be made. As a control signal for Activation of a specific program in the DAB reception section In this case, the PI code of the RDS signal used as the first control part signal and evaluated accordingly. Instead of the PI code, you can also other radio data information such as Identification of the traffic radio station TP the PS code (station name or name of the program chain) evaluated as a switchover criterion will. Thus when entering the station name e.g. "NDR 2" via an input unit 9 provided therefor (e.g. a speech recognition system that uses the human voice converted into electrical operating commands) in a simple way the best reception of the desired program is guaranteed will.

As already mentioned, the radio receiver is a television receiver e.g. 8, when receiving one of one Broadcast studio 83 originating program via PAL a corresponding first control signal sent if the same program e.g. is also transmitted via MAC with a satellite and on the TV screen e.g. "MAC" is displayed. In one TV receiver 80 which receives PAL as well as MAC TV signals and can process, when receiving such Program automatically or after operating a "MAC / PAL" key 81 on the remote control 82 for MAC reception e.g. D2-MAC or HD-MAC switched and thus the user the television signal offered with the technically best audio / video quality. With such a television set, not only one Monitoring of program identification signals are carried out, but also the quality of reception and transmission of the corresponding program signal that is currently being measured is not reproduced. A review and a comparison of radio signals that are transmitted via different transmission paths how PAL and MAC signals get to the receiver, is possible at the same time. By appropriate standardization on a basis the user can in conjunction with a OSD (on-screen display) programming additionally Comparison result is displayed in a specific mode become (see Fig. 8) and thus a decision to switch facilitate. Program identifiers are preferred like ARD, ZDF, NDR, SAT1 etc. the buttons on the remote control directly and permanently assigned so that the user himself does not have to remember the program key assignment.

Is the radio receiver described above as a MAC / PAL video recorder or DAB / FM FM recording device, so a recording of a broadcasting contribution in the operating mode e.g. MAC performed at the best sound and / or video quality can be guaranteed. As a switching criterion for one PAL or MAC recording of a transmitted via PAL and MAC The program can also use the first or second control signal be used.

Now with DAB reception in a mobile hybrid receiver found that the DAB signals are badly disturbed, but the hybrid receiver switches to NDR 2 in FM FM reception as soon as a predetermined one Threshold of the reception field strength or a representative one Value as below the error detection rate BER becomes. This prevents the DAB reception from abruptly aborts when the hybrid receiver keeps moving out of the broadcast area the DAB signals is carried. In such Borderline situations have shown that FM reception may has better properties - called graceful degradation. An exploitation of the hybrid receiver for the Graceful Degradation is therefore sensible and advantageous. A quick one Switching the receiving parts 5 and 6 on or off by means of the central control unit is easy, especially then if the receiving part is switched off in one Stand-by mode or the muted receiver 5 or 6 receives the same program as it does not muted receiving part 6 or 5. By means of one of the Control unit 3 controlled, addressable buffer (not shown) can also be easily achieved that switching between the receiving parts is not a short one or longer disturbing playback pause.

In addition, in the DAB circuit 5 by means of a bit error measurement / correction circuit the bit error rate BER (Bit error rate) of the received digitally coded broadcast signals measured and this value supplied to the control unit 3. The bit error rate exceeds a predetermined value (i.e. the reception quality drops below a predetermined one Value), which is stored in the memory 15, is by means of the Control unit switched to FM-FM, if the value once, is exceeded several times or permanently. If the Radio receiver anyway on FM FM reception of a particular one Program is coordinated and reproduces this is on Playback of the DAB receiving train 5, preferably at the same time Muted the analog reception train 6 switched, if a signal from the bit error measurement / correction circuit there is enough DAB reception quality is a predetermined value. Especially in areas in which already have an FM radio broadcast signal, but not that corresponding DAB broadcast signal of the current program in sufficient quality can be received is maintained of FM-FM reception makes sense, although a switchover is possible on DAB.

3 is a block diagram of an advantageous operating device 9 for the radio receiver 0 according to FIG. 1 shown. The operating device 9 has range selection buttons 17, programmable memory location selection buttons 18, a "Order Quality "button 30, a receive frequency input and Program entry 19 with numeric keyboard and a Transmit memory 20 on. The buttons 17, 18 are with the Memory 20 as well as connected to a control unit 24, which is identical to the control unit 3 or separately in the Broadcast receiver is designed. The input unit 19 is connected to the control unit 24. The memory selection buttons 18 as well as the program position input 19 are for setting the operation of FM-FM reception as well as DAB suitable. At Programming the memory location selection buttons 17 registers the Control unit, whether that assigned to a program key Y Program in area X can also be received via DAB. If this is the case, the Button 30 or the DAB range selection button 17 of the same program button 18 the corresponding program position for the DAB area assigned and the corresponding data for program setting stored in the corresponding location in the transmit memory 20. This can simplify programming. This type of programming can also be reversed from DAB area offices to other reception area locations will.

In the present example in Fig. 3 is from the control unit determined by evaluating the first control signals, that the NDR2 and FFN programs can also be received via DAB are. At the memory locations for the corresponding keys 18 (one and four) in the DAB area automatically becomes the corresponding program position entered. Primary purpose the control device is that the user one of selected program always in the best playback quality is offered. He may only notice the Playback quality and the display unit 10 that when called an FM FM or other analog program that Receiver changes independently to DAB or DSR reception.

In this example, the user now uses the area FM selected, the control unit switches the receiver automatically when the memory selection buttons one and four are called or only after pressing button 30 "Best quality" DAB reception at. If you then press button two is switched back to FM reception and the assigned one Program WDR1 set (see also Fig. 5). The one Range selection button selected FM-FM range, but not that The selected program is therefore activated when the buttons 18 are pressed leave if the selected program is too is received via DAB.

If a program can be received via FM as well as DAB, then the corresponding memory location in the transmit memory with a binary identification signal marked. To switch quickly needs the control unit then only evaluate the identification signal and the corresponding circuits and program settings make. The display unit 10 shows when called Program other than the program name (here NDR 2) and the current area names (here DAB) also the alternative ones Area names (here FM and AM), via the NDR 2 too is received. For switching to the alternative areas FM or AM becomes the corresponding range selection button 17 operated.

The reception frequency input unit or numeric keypad 19 is for direct selection of a program via DAB as well FM-FM / AM suitable. Since the program point for DAB or DSR programs but also regularly for television programs is a two-digit number, it differs fundamentally from a selected frequency value that is always more than two Has digits. With an evaluation circuit in the control unit 3 can be entered after entering two digits can be determined whether DAB reception with the selected range is called or not. This is a selection of all receivable Programs even without pressing the area selection buttons 17 and / or memory location selection buttons 18 possible. Preferably the input unit 19 has a data release key DFÜ with enter function. A data release of the typed The number for the program position can also be reached through the Button 30 or the DAB button. It is advantageous if each program has its own numerical program position identifier having. Preferably is as an alternative but the numeric keypad 19 with a decimal / binary converter in connected to the control unit, which is entered from a Number between 0 ... 255 generates an 8 bit binary word, where the association between a decimal number and a Binary value can also be set individually by the user can. With FM or AM or DAB / DSR operation, the binary Value of the entered decimal number then from the control unit evaluated as program reference number. The program reference number is part of the PI code transmitted with RDS (bits 9 to 16) of the desired program and is stored in the station memory 20 saved. Because each program is individual Program reference number or typeface data are assigned So the call of a program also by entering the Numeric keypad possible without the user having the respective Receiving frequency knows. By comparing the saved The recipient provides PI codes or the program reference numbers the required reception frequency or the desired one Program. It may be necessary to save the PI codes first start a station search so that the receiver receives the transmitters receivable in its area such as also "got to know" their program reference numbers.

The radio receiver in Fig. 1 already has circuitry a very compact design, since many modules for both reception parts can be used together. In individual cases it is quite conceivable to separate some assemblies for to provide both receiver trains, but to use them jointly for both.

Especially if a separate FM FM receiver with a separate DAB or DSR receiver e.g. for the purpose of retrofitting only a few modules can be interconnected be used jointly for both receivers. 4 is shown how such a retrofit for one FM FM receiver 21 can look like. The key is here a common interface 22, via the control data such as also user data from the DAB receiving part 23 to VHF receiver and vice versa. With The interfaces are in particular the inputs and outputs of both Receiving parts as well as the corresponding lines between the entrances and exits. The FM-FM receiver 21 points an antenna 1 and speakers 16 for playback and all for reception, processing and playback Circuit parts for analog audio signals. The one at the FM FM receiver connected via an interface 22 DAB receiver 23, like receiver 21, has its own Control device, display and LF signal processing circuit (not shown). over the interface 22 is the DAB receiver 23 directly with the Antenna output connectable. Furthermore is one bidirectional control line provided in the interface, via which the first or second control signals each other receivers for control purposes. Means the interface is also a common power supply both recipients possible. The NF signals at the output the DAB-NF level are directly through the interface supplied to the speakers 16. The setting of the playback parameters like volume, balance, stereo / mono, etc. optionally with the controls of both receivers or a recipient possible. The corresponding operator control signals from the DAB receiver are also via the Interface 22 fed to the FM-FM receiver and processed there. The FM-FM receiver 20 points like the receiver 6 shows an RDS decoder and a suitable RDS signal processing circuit on. Is a transmitted with an RDS signal the first control signal is received by the DAB receiver a switching pulse is supplied, which turns on the DAB receiver and the one currently received via FM-FM Calls the program assigned to the program position.

6 is a FM-FM transmitter or an FM-FM transmitter arrangement 60 shown, the one transmitting antenna 61, one FM-FM modulator unit 62, a first control signal encoder 63 and a mixer 64. Via a data input 65, the transmitter arrangement 60 receives the program signals P1 from fed to a broadcasting studio (not shown). Of the Control signal encoder outputs the first via an output 66 Control signal to an input 67 of the mixer 64, which the first control signal with the radio broadcast signal from the VHF-FM modulator unit 62 mixes and modulates with it. The first control signal is in the present example in the VHF-FM broadcast signal a pilot carrier or one Auxiliary frequency, which M times 19kHz from the carrier frequency away. M is a natural number e.g. Four. over antenna 61 becomes the mixed output of the mixer broadcast and can be received by an FM FM receiver will. Only if the current program P1 from the Transmitting arrangement 60 or another transmitter Sn also over digital broadcasting DAB or DSR will also be broadcast sent out the first control signal. Otherwise not. In one suitable control signal decoder can be received in the Radio receiver decodes the first control signal and one further processing as already described above for to control a DAB receiver.

A transmission arrangement S2 (not shown) according to claim 17 can be generated with a second control signal encoder build up the second control signal accordingly, the second control signal or first characteristic data (see claim 8) inserted as additional signals in the digital signal stream are.

As already stated above, DAB provides several, preferably six, stereo programs one inside the other nested on a multitude according to the COFDM method to transmit carrier frequencies. In a data frame one DAB transmission are the audio signals but also the program-accompanying signals from e.g. six programs included. Data bits which information about the number of programs transmitted programs transmitted in a COFDM multiplex frame. A signal accompanying the program is also the transmitter identification or the station name e.g. NDR 2, FFN etc., which on the Display 10 as shown in Fig. 3 can be displayed. A So DAB receiver that receives a data frame receives then always six programs at the same time, of which only one is played. It is very beneficial if on the Display 10 of the DAB receiver always the names of all the transmitters appear, which are transmitted in a data frame will. As shown in Fig. 9, such Display the clarity for setting the desired Transmitter increased significantly. On each of the programs displayed can the DAB receiver 5 or 23 without readjusting the Access frequency by accessing the appropriate Program location of the data frame is called, at which the Program signals of the desired program are stored.

In a display panel as shown in Fig. 9, it is for the convenience of operation useful, the station buttons 30 so that Allocate a display field that calls up the desired one Program is clear. Such an arrangement of the keys is in an analog radio receiver known from the DE-PS-2758034. There you have to call up a desired one However, the transmitter always first receives the corresponding reception frequency be reset. They are also on the display a variety of channels appear that are not receivable at all are. 9 also shows the number of station buttons 30 the number of programs transmitted in a multiplex signal adapted and limited to it.

9 has an individual control and is designed, for example, as a DOT matrix. As already shown in FIG. 3, it can of course also be used the transmission channel, e.g. FM, AM, DSR etc. to receive a displayed program otherwise is, provided that there are corresponding second control signals are also broadcast over the DAB transmission channel. Farther can also contain division information assigned to a transmitter News, pop, culture, etc. are displayed when broadcast by the broadcaster is carried over. As an indicator that indicates which station is currently being played can be a suitable one Marking e.g. Font size change, bold, Background changes etc. in the display field at the corresponding Channel name or a special marking of this channel name assigned button 40, e.g. by lighting up an in the button arranged LED, serve. Instead of the full one Channel names of all channels can also be a one-digit number Characters per station that can be received on the display are displayed, so that the display itself in its size is compact and takes up less space as shown in FIG. 9.

The keys 40 can also be omitted if that Display field has a "tip-in" function or as a "touch screen "is executed, so that only one position in the display field must be touched where the desired transmitter is located. After touching the display field at the point, a signal will be given transferred to the control unit and the desired setting performed. A display unit as shown in FIG. 9 or display 10 can be used for any DAB receiver use, even if the second control signals are not transmitted and the receiver is not using an FM radio receiver connected is.

Claims (23)

1. Method for the transmission of VHF-FM and/or AM broadcast signals, characterised in that, a first control signal (DAB-Code, DAB-GT) is temporarily or continuously transmitted with this VHF-FM and/or AM broadcast signal and said first control signal contains an item of control information concerning another, different type of broadcast transmission system (DAB, DSR, MAC) which is used for switching on and controlling a broadcast receiver (5) for digital broadcasts (DAB, DSR, MAC) and/or for muting a broadcast receiver (6) for the VHF-FM and/or AM broadcast signal.
2. Method for the transmission of digitally coded broadcast signals (DAB, DSR, MAC), characterised in that, a second control signal is temporarily or continuously transmitted with the digitally coded broadcast signal and said second control signal contains an item of control information concerning another, different type of broadcast transmission system (VHF-FM and/or AM) which is used for switching on and controlling a VHF-FM and/or AM broadcast receiver (6) and/or for muting a broadcast receiver (5) for the digitally coded broadcast signal.
3. Method according to Claims 1 or 2, characterised in that, the first or second control signal is only transmitted with a programme signal if the same programme is also being transmitted via the transmission system to which the first or second control signal is allocated.
4. Method according to Claim 1 or 3, characterised in that, a radio data signal (RDS) is transmitted with a broadcast VHF-FM and/or AM broadcast signal and said radio data signal is decoded, upon reception of the broadcast signal, by an FM and/or AM broadcast receiver using a radio data signal decoder as first control signal decoder, and is used in a suitable way, for example, for tuning, display, etc., in the FM/AM broadcast receiver, and that the first control signal (DAB code) is transmitted with the radio data signal.
5. Method according to Claim 2 or 3, characterised in that, an auxiliary signal is transmitted with the broadcast digitally coded broadcast signal (DAB, DSR, MAC) and, upon reception of the broadcast signal, said auxiliary signal is decoded by a broadcast receiver for digital broadcasts (DAB, DSR, MAC) and is used in a suitable way, for example, for selecting a programme, display, etc., and that the second control signal is transmitted with the auxiliary signal.
6. Method according to Claim 1 or 3, characterised in that, the first control signal is transmitted via a channel which is separate from the radio data transmission channel.
7. Method according to one or more of the preceding Claims, characterised in that, upon reception of the first and/or second control signal, the VHF-FM and/or AM broadcast receiver and/or the digital receiver (DAB, DSR, MAC) processes this signal in a control data evaluation circuit (3), stores it in a memory (15) and/or displays it on a display unit (10).
8. Broadcast receiver including a first broadcast receiving section (6, 21) for receiving and processing the VHF-FM and/or AM broadcast signals and a second broadcast receiving section (5, 23) for receiving and processing the digitally coded audio signals (DAB, DSR, MAC) according to any one of the preceding Claims, wherein one or more common components such as e.g. an antenna (1), operating elements (9), a loudspeaker (16), control means (3), a voltage supply, an auxiliary data decoder, etc. may be provided for both broadcast receiving sections, characterised in that, the broadcast receiver (0) contains a central control unit (3) in which first items of program identification data are compared with second items of program identification data (PI code, AF code), wherein the first items of identification data are associated with a digitally coded broadcasting system (DAB, DSR, MAC) and the second items of identification data are associated with a VHF-FM and/or AM broadcasting system and that the broadcast receiver (0) or the first and/or second broadcast receiving section (5, 6) is controllable in dependence on the result of the comparison.
9. Broadcast receiver according to Claim 8, characterised in that, the broadcast receiver (0) contains a memory (15) which is connected to the central control unit (3) and in which the first items of programme identification data are stored for those programmes which can be received via digital audio broadcasting (DAB, DSR, MAC), whereby the control unit (3) is constructed as a data processing and evaluation circuit.
10. Broadcast receiver according to one or more of the preceding Claims, characterised in that, switching over from VHF-FM/AM reception/reproduction to digitally coded broadcast reception/reproduction (DAB, DSR, MAC) occurs automatically or only after operating a key (30) of the operating unit (9) if the data processing and evaluation circuit and/or the control unit (3) establishes, by means of the evaluation of the control signal, that the received VHF-FM/AM programme is also being transmitted via digital broadcasting (DAB, DSR, MAC) and/or can be received with adequate quality.
11. Broadcast receiver according to one or more of the preceding Claims 8 - 10, characterised in that, the RDS signal or a part (PI code, AF code, GT, DAB code) thereof is used as the first control signal for controlling the second receiving section (5).
12. Broadcast receiver according to one or more of the preceding Claims, characterised in that, the VHF-FM broadcast receiver (6) and/or digital broadcast receiver (5) comprises a unidirectional and/or bidirectional control output (35) from which the first and/or second control signal can be tapped off.
13. Broadcast receiver according to one or more of the preceding Claims, characterised in that, the broadcast receiver contains a single decoder and/or a single data evaluation circuit (3) which decodes and/or processes the first control signal and/or the radio data signals (RDS) as well as the digital broadcast signals (DAB, DSR) and/or their auxiliary signals.
14. Broadcast receiver according to one or more of the preceding Claims, characterised in that, switching over from the DAB reception of a programme P1 to VHF-FM or AM reception of the corresponding programme P1 occurs automatically or after actuation of a key (30) if the receiver approaches the propagation limit of the DAB broadcasting zone and/or if an error correction process for the digitally coded audio data occurring in an error correcting circuit in the second receiving section (5) fails.
15. Broadcast receiver according to one or more of the preceding Claims, characterised in that, programmable memory location selector keys (18), a band selection key (17) and a station memory (20), which are connected to the control unit (24, 3), are provided for operating the broadcast receiver (0), that the same programme (P1) for VHF-FM and digitally coded broadcasting (DAB, DSR, MAC) is automatically allocated to a specific memory location selector key (18) in the station memory (20) if this programme (P1) can be received via both VHF-FM and digitally coded broadcasts.
16. Broadcast receiver, in particular a DAB broadcast receiver, according to any one of the preceding Claims, characterised in that, the broadcast receiver (5, 23) comprises means for the processing of digitally coded signals, that the digitally coded signals are subdivided into a multiplicity of frames, that each frame comprises at least three segments, namely one segment for indicating the start of a frame (header), one segment with checking information (control bits) and one segment which contains the audio information, that each frame and/or successive frames comprises and/or comprise the audio and auxiliary information from several radio programs, that the auxiliary information comprises a programme and/or transmitter identification of each programme, for example, NDR 2, FFN, SFB, etc., transmitted within the transmission channel or frame, and/or that the radio receiver has a display unit (10) on which the transmitter names of all the programmes that are being transmitted in a DAB transmission channel in several frames and/or one DAB frame are shown.
17. Broadcast receiver according to one or more of the preceding Claims, characterised in that, a separate VHF-FM receiver is connected to a separate receiver for digitally coded broadcasts (DAB, DSR, MAC) via one or more unidirectional and/or bidirectional control lines (35) and/or a control unit (3).
18. Broadcast receiver according to one or more of the preceding Claims, characterised in that, the VHF-FM broadcast receiver (6) comprises a microprocessor (3) for evaluating the decoded RDS data, that the microprocessor compares the programme chain identification data (PS code) and/or transmitter identification data (PI code) and/or another reference datum corresponding to the VHF-FM programme (P1) currently being received with data from a reference list stored in the memory, that the reference list contains information on programs which can be received via digitally coded broadcasting (DAB, DSR, MAC), that when the data from the reference list coincides with the RDS data, a control signal and/or control data is sent to a control output of the broadcast receiver and/or the coincidence is indicated on the display unit and/or a digital broadcast receiver (DAB, DSR, MAC) connected to the VHF receiving section is switched on and/or controlled.
19. Transmitter (60) for a VHF-FM and/or AM broadcast transmission system according to one or more of the preceding Claims, characterised in that, the transmitter (60) comprises a first control signal coder (63) for transmitting a first control signal (SS1), that the transmitter (60) transmits the first control signal together with a VHF-FM and/or AM broadcast signal of a radio and/or television programme (P1) if the same transmitter (60) and/or another transmitter (68) is also radiating the same radio and/or television programme (P1) via a digitally coded broadcast (DAB, DSR, MAC), and/or that the first control signal is allocated to a broadcast transmission system (DAB, DSR, MAC) which is not compatible with the VHF-FM and/or AM broadcast transmission system.
20. Transmitter (68) for a digital broadcast transmission system (DAB, DSR, MAC) according to one or more of the preceding Claims, characterised in that, the transmitter (68) comprises a second control signal coder for transmitting a second control signal, that the transmitter transmits the second control signal with a digitally coded broadcast signal (DAB, DSR, MAC) of a radio and/or television programme (P2) if the same transmitter (68) and/or another transmitter (60) is also radiating the same radio and/or television programme (P1) via a VHF-FM and/or AM broadcast, and/or that the second control signal is allocated to a broadcast transmission system (VHF-FM/AM) which is not compatible with the digital broadcast transmission system.
21. Digital data signal accompanying a broadcast program, said signal being divided into at least two data/information segments,

    wherein the first segment (PI/AF code) comprises first items of control data/information which are associated with a first broadcast transmission system (VHF-FM/AM, PAL),

    wherein the second segment (DAB code) comprises second items of control data/information which are associated with a second broadcast transmission system (DAB, DSR, MAC) that is not compatible with the first one, and

    wherein the data signal is transmitted in a transmission channel (RDS) of the first and/or second broadcast transmission system.
22. Data signal according to Claim 21, characterised in that, the first and/or second segment is contained in the data signal only when the programme accompanying it is also transmitted via the broadcast transmission system with which the first and/or second items of control data/information are associated.
23. Use of the data signal according to Claim 21 or 22 for the control of a broadcast receiver.

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