JPH09162817A - Reception device for multiplex broadcasting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To store and update a PI code and an AF list without giving an unpleasant feeling to a user by providing a data extraction means, a storage means, a power supply judgment means and a control means. SOLUTION: A sound output system 10, a data extraction system 20 and a control system 30 are provided. The sound output system 10 sound-outputs received FM broadcasting. The data extraction system 20 extracts the AF list of respective broadcasting radio waves with which the same programs are broadcasted by means of different broadcasting systems and the PI codes showing that the programs are the same from a broadcasting radio wave received in the sound output system 10. The control part 36 of the control system 30 starts supplying power to the sound output system 10 when power is detected to be not supplied to the sound output system 10, and stores/updates the AF list corresponding to the PI code in RAM 32 for the respective PI codes by using the PI code extracted in the data extraction system 20 and the AF list.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio data system (hereinafter simply referred to as R
The present invention relates to a receiving apparatus for multiplex broadcasting that receives multiplex broadcasting such as broadcasting.

[0002]

2. Description of the Related Art Conventionally, as such a multiplex broadcasting, F
M Radio broadcasting information, such as information related to program broadcasting and traffic information, is multiplexed on the radio waves, and the receiving side decodes the multiplexed information to provide various services to listeners of the radio broadcasting. There are RDS schemes that can be provided.

The RDS system is widely used mainly in Europe, where many broadcasting stations often form a network to broadcast the same program, and a stereo pilot signal of 19 kHz outside the frequency band of the FM modulated wave. 57 kHz which is the third harmonic of the subcarrier is used as a subcarrier, and the subcarrier is amplitude-modulated into a radio data signal by a data signal indicating information such as program-related information and traffic information filtered and bi-phase coded. The amplitude-modulated subcarrier is frequency-modulated to the main carrier to be broadcast.

FIG. 16 is an explanatory diagram showing the baseband coding structure of the radio data signal.

As shown in FIG. 16, the radio data signal is composed of a group of 104 bits. Each group is composed of 4 blocks of 26 bits, and each block is a 16-bit information word (m0 to m15). ) And 1
0-bit check word and offset word (c'0 to c'9)
It is composed of

For example, as shown in FIG. 17, a program identification code (hereinafter simply referred to as a PI code) indicating a network composed of country name data and program data is included in the first block.
However, in the second block, traffic program identification data (hereinafter simply referred to as TP data) indicating traffic information broadcasting station identification data and traffic announcement identification data (hereinafter simply referred to as TA data) indicating identification data in traffic information. ) Is the data related to the frequency of each station of the network station group broadcasting the same program in the third block, that is, an alternative frequency list (hereinafter, simply referred to as an AF list), and the fourth block is a broadcast station name and Broadcasting station name data (hereinafter, simply referred to as PS data) such as a network name is arranged.

Also, each group has four groups depending on the contents.
It is classified into 16 types of types 0 to 15 by bits, and two versions A and B are defined for each type (0 to 15), respectively.
It is located in a block. The AF list is transmitted only in the type 0A group.

As described above, the radio data signal of the type 0A group includes the AF list of the network station broadcasting the same program as the broadcasting station currently being received, as shown in FIG.

Now, an automatic tracking function using an AF list in a conventional multiplex broadcasting receiver will be described.

As such a multi-broadcast receiving device,
As described in JP-A-1-202030, when a radio data signal of the type 0A group is received, a PI code obtained by demodulation and an AF list corresponding to the PI code are fetched and stored in a memory in the apparatus. Incidentally, for example, when the reception level at the broadcasting station currently being received is lower than a predetermined value due to disturbance such as multipath interference, or when the radio data signal cannot be received,
Based on the AF list stored in the memory, an automatic follow-up operation for selecting another network station that is broadcasting the same program as the broadcast station currently being received is started, and the automatic follow-up operation ensures a good reception level. The program broadcast of the same content in another network station is received.

Therefore, according to the above-mentioned conventional receiver for multiplex broadcasting, the user can always listen to the same program in a good reception state without being affected by disturbance.

[0012]

However, according to the conventional multi-broadcast receiver, the memory update relating to the PI code and the AF list stored in the memory used for the automatic follow-up operation is performed in the FM mode, for example. Since this is done when the set power supply related to ON is turned on, the FM mode is set to O.
Even if N is given, there is the first problem that the FM broadcast sound related to the memory update is in a mute state, the desired broadcast program cannot be listened to during the memory update, and the user is uncomfortable. It was

Further, according to the above-mentioned conventional receiver for multiplex broadcasting, even if the automatic follow-up operation is started, in order to receive another network station having a good reception level to be originally followed, the memory is stored in the memory. After performing the reception follow-up operation for all the stations in the selected AF list and comparing the reception levels of the stations, the broadcasting station related to the best reception level must be tuned in, and the reception level with good reception level must be selected. There is a second problem in that it takes a very long time to receive another network station, and the automatic tracking operation does not go smoothly.

The present invention has been made in view of the above-mentioned first problem. The first object of the present invention is to update and store the PI code and the AF list without causing the user discomfort. It is an object of the present invention to provide a multi-broadcast receiving device capable of performing the same.

The present invention has been made in view of the above-mentioned second problem, and the second object is to:
It is an object of the present invention to provide a multiplex broadcast receiver that can smoothly perform an automatic tracking operation.

[0016]

In order to achieve the above first object, a multiplex broadcasting receiver of the first invention provides a program broadcast and data multiplexed in the program broadcast, which come from a broadcast station. Receiving means for receiving broadcast radio waves including, frequency list of broadcast radio waves broadcasting the same program by different transmission methods from the broadcast radio waves received by the receiving means, and program identification indicating the same program Data extraction means for extracting a code, storage means for storing the program identification code and frequency list extracted by the data extraction means, power supply means for supplying power to the device, and reception from the power supply means. Means for determining whether or not power is being supplied to the means, and if the power supply determining means determines that power is not being supplied, the power supply means receives the signal. The power supply to the stage is started, and the frequency list corresponding to the program identification code is stored and updated in the storage unit for each program identification code by using the program identification code and the frequency list extracted by the data extracting unit. It has a control means to operate.

Therefore, according to the multiplex broadcasting receiver of the first aspect of the invention, when power is not being supplied to the receiving means such as the FM radio tuner for receiving the FM broadcasting radio waves such as the RDS broadcasting, for example, the multiplex broadcasting is performed. When the power supply to the entire broadcasting device is OFF, when the accessory power supply is OFF when the receiving device for multiplex broadcasting is applied to a vehicle, or when the F
When a mode other than the M mode is entered, that is, when there is no FM broadcast program desired by the user at this moment, the user does not need an FM radio tuner and an RDS decoder which is a data extracting means at the present time. A PI code that is a program identification code and an AF list that is a frequency list are extracted, and the extracted PI is extracted.
Since the code and the AF list are stored and updated in the storage means, a new AF list and a new AF list can be obtained without the unpleasant feeling that the FM broadcast program desired by the user cannot be listened to due to the muting at the time of storage update as in the conventional technique. PI
The code can be stored and updated.

The storage means may be a preset memory area corresponding to a preset key capable of calling and receiving each broadcasting station with one touch.

In addition to the configuration of the first aspect of the invention, the multiplex broadcast receiving apparatus of the second aspect of the invention determines whether or not the traffic information extracted by the data extracting means is on standby. It has an interrupt standby determination means for determining, the control means is determined by the interrupt standby determination means is not in the interrupt standby,
When the power supply determining means determines that power is not being supplied, the power supply means is caused to start supplying power to the receiving means, and the program identification code and the frequency extracted by the data extracting means. It is characterized in that the frequency list corresponding to the program identification code is stored and updated in the storage means for each program identification code using the list.

Therefore, according to the multiplex broadcasting receiver of the second aspect of the invention, the traffic information related to the TA data, the TP data, etc. during the RDS broadcasting is not waiting for the interruption (during the traffic information interruption mode), Moreover, only when the power supply to the receiving means such as the FM radio tuner is not performed, that is, when there is no desired FM broadcast program that the user listens to at the moment, the PI code which is the program identification code and the AF which is the frequency list are displayed. Since the list is stored and updated in the storage means, the user can mute the desired FM.
It is possible to store and update a new AF list and PI code in the storage means without the discomfort that the broadcast program cannot be listened to and without hindering the interrupt operation by the TA data and TP data.

[0021] The multiplex broadcasting receiver of the third aspect of the invention includes a receiving means for receiving a broadcast radio wave including a program broadcast and data multiplexed in the program broadcast, the receiving means coming from a broadcast station, and the receiving means. Data extraction means for extracting a frequency list of broadcast radio waves broadcasting the same program by different transmission methods and a program identification code indicating the same program from the broadcast radio waves received by Storage means for storing the received reception frequency, and sequentially changing the reception frequency according to a predetermined input to receive broadcast radio waves corresponding to the respective reception frequencies, and storing the reception frequency of the received broadcast radio waves. And a control means having an auto store function for arbitrarily storing in the multi-broadcast receiver, wherein the control means is adapted to receive the broadcast radio wave by the auto store function. The frequency list and the reception frequency related to the program identification code are stored and updated in the storage means for each program identification code by using the reception frequency of the wave, the program identification code and the frequency list related to the reception frequency. .

Therefore, according to the multiplex broadcasting receiver of the third aspect of the invention, it is not intended for the user to listen to the desired FM broadcast program, but in reality, when the new multiplex broadcasting device is purchased, or Since the AF list and the PI code of the broadcast wave received by the auto store function are stored and updated in the storage means when the auto store function that is often used is executed when the reception area is largely moved. The new AF list and PI code can be stored and updated without the discomfort that the user cannot listen to the FM broadcast program desired by the muting at the time of storage update as in the conventional technique.

Further, in the multiplex broadcasting apparatus of the fourth invention, in addition to the configuration of the third invention, the same frequency as the reception frequency of the broadcast radio wave received when the broadcast radio wave by the auto store function is received is the above-mentioned. First determination means for determining whether or not the frequency list is stored in the storage means, program identification code of the broadcast radio wave received at the time of receiving the broadcast radio wave by the auto store function, and stored in the storage means, A second determination unit that determines whether or not a program identification code corresponding to a frequency list having the same frequency as the reception frequency of the broadcast radio wave is the same; and the control unit is the first unit.
When the judging means has the same frequency and the second judging means has the same program identification code, the frequency list and the program identification code corresponding to the received frequency are used for each program identification code. It is characterized in that the frequency list and the reception frequency relating to the program identification code are stored and updated in the storage means.

Therefore, according to the multiplex broadcasting receiver of the fourth aspect of the invention, the same reception frequency as that received when the broadcast radio wave is received by the auto store function is stored in the frequency list stored in the storage means. In addition, when the program identification code of the reception frequency received at the time of receiving the broadcast radio wave by the auto store function is the same as the program identification code of the frequency list, it corresponds to the reception frequency received by the auto store function. Since the AF list and the PI code are stored and updated in the storage means, for example, one of the AF lists transmitted as multiple data due to a regional or topographical problem such as a deficiency of the broadcasting station or broadcasting administration or a border or the like. Even if there are broadcast stations with the same frequency but different program contents, it is possible to reliably prevent accidental memory updates. , It is possible to obtain a reliable automatic follow-up operation based on the stored AF list.

Further, in order to achieve the above-mentioned second object, the receiving apparatus for multiple broadcasting according to the fifth aspect of the present invention is the receiving means in addition to the configuration of the above-mentioned first, second, third or fourth aspect. And a level detecting means for detecting a reception level of the broadcast radio wave received by the control means, wherein the control means receives each broadcast radio wave based on a frequency list for each program identification code stored in the storage means. , The reception level of the received broadcast radio wave is detected by the level detection means, and the priority of each broadcast radio wave in each frequency list is determined in the order of good reception level. It is characterized in that the determined priority order is stored and updated in the storage means in association with each broadcast radio wave in the frequency list.

Therefore, according to the multiplex broadcasting receiver of the fifth invention, in addition to the effect of the first, second, third or fourth invention, the AF list and the PI code are stored in the storage means. When the memory is updated, the priority order is determined in the order in which the reception level of the reception frequency is good, and the AF list and the PI code are stored and updated in the storage unit with the determined priority order added. At the time of automatic tracking, it is possible to quickly and smoothly select a broadcast wave having a good reception level based on the priority order stored in the storage means.

Further, in the multiplex broadcasting receiver of the sixth invention, the reception level described in the fifth invention is composed of electric field strength data and noise level data of the broadcast radio wave received by the receiving means. Is characterized by.

Therefore, according to the multiplex broadcasting receiver of the sixth aspect of the present invention, when the AF list and the PI code are stored and updated in the storage means, the priorities are determined in the order in which the reception level of the reception frequency is good. Then, since the AF list and the PI code are stored and updated in the storage means with the determined priority added, the reception level is based on the priority stored in the storage means during automatic tracking. It is possible to quickly and smoothly select a good broadcast wave of.

Further, in the multiplex broadcast receiver of the seventh invention, in addition to the configuration of the fifth or sixth invention, the control means is such that the reception level relating to the broadcast wave currently being received is less than a predetermined value. When it is also detected that the reception radio wave is lowered, the reception means is made to receive the broadcast radio wave having a good reception level based on the priority order in the frequency list corresponding to the same program broadcast as the reception broadcast radio wave. .

Therefore, according to the multiplex broadcasting receiver of the seventh aspect of the invention, in addition to the effect of the fifth or sixth aspect of the invention, the reception level relating to the broadcast wave currently being received falls below a predetermined value. When it is detected, the broadcasting station having a good reception level is received on the basis of the priority order stored in the storage means, so that the automatic follow-up does not give the user an unpleasant feeling due to mute, It is possible to quickly and smoothly receive broadcast waves with good reception levels.

In addition, in the multiplex broadcast receiver of the eighth invention, in addition to the configuration of the fifth, sixth or seventh invention, the control means controls the reception level relating to the broadcast wave currently being received. When it is detected that the received radio wave is lower than a predetermined value, the receiving means is made to follow and receive a broadcast radio wave having a good reception level based on the priority in the frequency list corresponding to the same program broadcast as the broadcast radio wave being received, The level detection means detects the reception level of the broadcast radio wave received by the tracking,
It is characterized in that the reception level of the broadcast radio wave received by the follow-up is compared with the reception level of the broadcast station before the follow-up, and the reception means receives the broadcast radio wave of a good reception level based on the comparison result.

Therefore, according to the multiplex broadcasting receiver of the eighth aspect of the invention, in addition to the effect of the fifth, sixth or seventh aspect of the invention, the reception level relating to the broadcast wave currently being received is a predetermined value. When it detects that it is lower than that, it automatically executes the follow-up operation, but compares the reception level of the broadcast radio wave received by the follow-up with the reception level of the broadcast radio wave before the follow-up,
Since the receiving means is made to receive the broadcast radio wave of a good reception level based on the comparison result, in the automatic tracking operation, regardless of the priority order stored in the storage means, at the time of the current reception. It is possible to smoothly and swiftly receive broadcast radio waves with a good reception level.

Further, in the multiplex broadcasting receiver of the ninth invention, in addition to the configuration of the eighth invention, the control means is:
The priority order in the frequency list corresponding to the same program broadcast stored in the storage means is stored and updated based on the comparison result.

Therefore, according to the multiplex broadcast receiver of the ninth invention, in addition to the effect of the eighth invention, the priority order in the frequency list corresponding to the same program broadcast stored in the storage means is set. Since the memory is updated based on the comparison result, during the automatic follow-up operation, the broadcast wave having a good reception level at the current reception time can be smoothly and smoothly, without being caught by the priority order stored in the storage means. Can be received quickly.

The multiplex broadcast receiving apparatus of the tenth aspect of the invention includes a receiving means for receiving a broadcast radio wave including a program broadcast and data multiplexed in the program broadcast, the receiving means coming from a broadcast station, and the receiving means. Frequency changing means for sequentially changing the reception frequency of the broadcast radio wave to be received, level detection means for detecting the reception level of the broadcast radio wave at the received broadcasting station, and the same program in a different transmission system from the received broadcast radio wave. A frequency list of each broadcast radio wave being broadcast, a program identification code indicating the same program, a traffic information broadcasting station code indicating that it is a traffic information broadcasting station broadcasting traffic information, and the traffic information broadcasting station concerned Data extracting means for extracting traffic information from the vehicle, storage means for storing the frequency list and the program identification code extracted by the data extracting means, and the data The traffic information interrupt mode is set to preferentially extract the traffic information from the traffic information broadcasting station by the extraction means, and the reception level of the broadcast wave of the traffic information broadcasting station is higher than a predetermined value during this traffic information interrupt mode. Also decreases, the multi-broadcast receiving device having a control means for executing an auto-retune operation for sequentially receiving the broadcast radio waves of each broadcast station in order to receive the broadcast radio waves of other traffic information broadcast stations. The means extracts the program identification code and the frequency list by the data extracting means from the broadcast radio wave of the broadcasting station received during the auto-retune operation, and based on the program identification code and the frequency list, each program identification code. The frequency list corresponding to is stored and updated in the storage means.

The broadcast radio wave is an F in which data is multiplexed.
This is equivalent to M multiplex broadcast radio waves. The level detection means detects a reception level based on a signal meter value and / or a noise level value of broadcast radio waves.

The data extracted by the data extraction means corresponds to RDS data, the frequency list is the AF list, the program identification code is the PI code,
The traffic information broadcasting station code corresponds to TP data, and the traffic information corresponds to TA data.

The traffic information interruption mode means that when TA data, that is, traffic information is received from the traffic information station,
This is a mode in which the traffic information is preferentially extracted by the data extraction means even if the current mode is not the FM mode.

The auto-retune operation means that the reception level of the traffic information broadcasting station currently receiving in the traffic information interrupt mode is lower than a predetermined value, that is, when the reception level is deteriorated, the reception level is good. This seeks to the traffic information broadcasting station.

Therefore, according to the multiplex broadcasting receiver in the tenth aspect of the invention, the program identification code and the frequency list are extracted from the broadcast radio waves of the respective broadcasting stations received by the auto-retune operation, and these program identifications are performed. Since the frequency list corresponding to each program identification code is stored and updated in the storage means based on the code and the frequency list, even if the AF list is stored and updated during the auto-retune operation, the auto-retune operation is performed. Aims to seek a traffic information broadcasting station having a good reception level, so that the muting of the FM broadcasting associated with the memory update does not cause any discomfort to the user.

In addition, in the multiplex broadcasting receiver of the eleventh invention, in addition to the configuration of the tenth invention, the control means includes a frequency list corresponding to the program identification code stored in the storage means. The priority order is determined for each broadcast radio wave in the order of good reception level, and the determined priority order is stored and updated in the storage means in association with each broadcast radio wave in the frequency list. .

Therefore, according to the multiplex broadcasting receiver in the eleventh invention, in addition to the effect of the tenth invention, when the frequency list and the program identification code are stored and updated in the storage means, the reception frequency The priority order is determined in descending order of the reception level of, and the frequency list and the program identification code are stored and updated in the storage means with the determined priority order added. It is possible to quickly and smoothly select a broadcast wave having a good reception level based on the priority stored in the means.

The multiplex broadcasting receiver of the twelfth aspect of the invention is a receiving means for receiving broadcast radio waves coming from a broadcasting station, and a frequency changing means for sequentially changing the reception frequency of the broadcast radio waves received by the receiving means. And a level detection means for detecting the reception level of the broadcast radio wave at the received broadcasting station, a frequency list of each broadcast radio wave broadcasting the same program by a different transmission method from the received FM broadcast radio wave, and the same program. Data extraction means for extracting a program identification code indicating that the storage area is a storage means for storing the frequency list and the program identification code extracted by the data extraction means, and whether a mode other than the FM mode is set. Mode setting determination means for determining whether or not, while all other FM broadcast radio waves within the FM broadcast band are sequentially received during mode setting other than the FM mode. A control means for extracting a program identification code and a frequency list from each FM broadcast wave, and storing and updating the frequency list corresponding to each program identification code in the storage means based on the program identification code and the frequency list. Characterize.

The broadcast radio wave is an F in which data is multiplexed.
This is equivalent to M multiplex broadcast radio waves. The level detection means detects a reception level based on a signal meter value and / or a noise level value of broadcast radio waves.

The data extracted by the data extracting means corresponds to RDS data, the frequency list corresponds to the AF list, and the program identification code corresponds to the PI code.

The mode setting determination means is, for example, configured to monitor and determine the input operation of the switching key for switching the mode.

The modes other than the FM mode correspond to, for example, an AM mode for receiving AM broadcast radio waves, a tape mode for tape reproduction, a CD mode for CD reproduction, and the like.

Therefore, according to the multiplex broadcasting receiver in the twelfth invention, during the modes other than the FM mode,
Receives all FM broadcast waves in the FM broadcast band sequentially,
The program identification code and frequency list are extracted from each FM broadcast wave, and the frequency list corresponding to each program identification code is stored and updated in the storage means based on the program identification code and frequency list. It is not intended to listen to FM broadcasts in other modes other than the above, and even if the AF list is stored and updated during this other mode, the user can be muted by the FM broadcasts accompanying the storage update. There is nothing that makes you feel uncomfortable.

When the AF list and the PI code are stored and updated in the storage means while the AM mode is set, the reception means is composed of two systems, and one reception means transmits the AM broadcast radio wave. It is possible to receive the FM broadcast radio wave by the other receiving means.

Further, the multiplex broadcasting receiver of the thirteenth invention comprises a receiving means for receiving the broadcast radio wave coming from the broadcasting station and a frequency changing means for sequentially changing the receiving frequency of the broadcast radio wave received by the receiving means. And a level detection means for detecting the reception level of the broadcast radio wave at the received broadcasting station, a frequency list of each broadcast radio wave broadcasting the same program by a different transmission method from the received FM broadcast radio wave, and the same program. Data extraction means for extracting a program identification code indicating that the storage area is a storage means for storing the frequency list and the program identification code extracted by the data extraction means, and whether a mode other than the FM mode is set. Mode setting determining means for determining whether or not the reception level of the FM broadcast radio wave falls below a predetermined value during setting of modes other than the FM mode. A multiplex broadcasting receiver having a control means for executing an automatic tracking operation for receiving an FM broadcast wave having a good reception level based on the AF list stored in the storage means, wherein the control means is an FM mode. If you execute the auto-following operation while setting other modes except
All radio waves in the FM broadcast band are sequentially received, and each F
A program identification code and a frequency list are extracted from the M broadcast radio waves, and the frequency list corresponding to each program identification code is stored and updated in the storage means based on the program identification code and the frequency list.

The broadcast radio wave is an F in which data is multiplexed.
This is equivalent to M multiplex broadcast radio waves. The level detection means detects a reception level based on a signal meter value and / or a noise level value of broadcast radio waves.

The data extracted by the data extracting means corresponds to RDS data, the frequency list corresponds to the AF list, and the program identification code corresponds to the PI code.

The modes other than the FM mode correspond to, for example, an AM mode for receiving AM broadcast radio waves, a tape mode for tape reproduction, a CD mode for CD reproduction, and the like.

The mode setting judging means judges by monitoring the input operation of the switching key for switching the mode.

The automatic tracking operation means that when the reception level of the FM broadcast radio wave being received falls below a predetermined value during the setting of modes other than the FM mode, the A stored in the storage means.
This is an operation of receiving a broadcast wave having a good reception level based on the F list.

As described above, the necessity of the automatic follow-up operation executed during the setting of the modes other than the FM mode is that the FM having the good reception level is obtained when the FM mode is switched to the next time.
It is to receive broadcast waves quickly and smoothly.

Therefore, according to the multiplex broadcasting receiver in the thirteenth aspect of the invention, all the FM broadcast radio waves within the FM broadcast band are sequentially processed after the automatic follow-up operation is executed while the mode other than the FM mode is set. Then, the program identification code and the frequency list are extracted from each FM broadcast radio wave, and the frequency list corresponding to each program identification code is stored and updated in the storage means based on the program identification code and the frequency list. Therefore, after executing the automatic follow-up operation during the setting of the modes other than the FM mode, the purpose is not to listen to the FM broadcast, and the AF list is stored and updated after the automatic follow-up operation in the other modes. Even so, the user does not feel uncomfortable due to the muting of the FM broadcast accompanying this memory update.

When the AF list and the PI code are stored and updated in the storage means while the AM mode is set, the receiving means is composed of two systems, and one of the receiving means outputs the AM broadcast radio wave. It is possible to receive the FM broadcast radio wave by the other receiving means.

Further, in the multiplex broadcasting receiver of the fourteenth invention, in addition to the configuration of the twelfth or thirteenth invention, the control means has a frequency corresponding to the program identification code stored in the storage means. For each broadcast radio wave in the list, a priority order is determined in the order of good reception level, and the determined priority order is stored and updated in the storage means in association with each broadcast radio wave in the frequency list. Characterize.

Therefore, in addition to the effect of the twelfth or thirteenth aspect of the invention, the multiplex broadcasting receiver in the fourteenth aspect of the invention receives the frequency list and the program identification code from the storage means when updating the reception. The priority order is determined in the order of good reception level of frequencies, and the frequency list and the program identification code are stored and updated in the storage means in a form in which the determined priority order is added. It is possible to quickly and smoothly select a broadcast wave having a good reception level based on the priority order stored in the storage means.

[0061]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An on-vehicle RDS receiver showing an embodiment of a multiplex broadcasting receiver of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration inside an RDS receiver showing an embodiment of a multiplex broadcasting receiver of the present invention.

The RDS receiver shown in FIG. 1 receives an FM broadcast coming from a broadcasting station, extracts an audio output system 10 for outputting the received FM broadcast as audio, and data multiplexed in the FM broadcast. Data extraction system 20 and the relevant R
The control system 30 controls the entire DS receiver.

As the audio output system 10, a receiving antenna 11 which receives a broadcast wave including a program broadcast and data multiplexed in the program broadcast, which comes from a broadcast station, and a voltage signal from a PLL circuit described later, A front end unit 12 that receives a desired frequency from the receiving antenna 11 and converts it to a predetermined intermediate frequency signal, an IF detection circuit 13 that detects the converted intermediate frequency signal, and an output signal of the IF detection circuit 13. To a stereo signal,
In the case of stereo broadcasting, a multiplex (hereinafter simply referred to as MPX) circuit 14 that separates audio signals of L (left) and R (right) channels, and mute processing for the stereo signal from the MPX circuit 14 are performed. A muting circuit 15 to be applied, an amplifier 16 for amplifying the stereo signal, a speaker unit 17 for outputting the amplified stereo signal as sound, and a predetermined frequency corresponding to a reception frequency based on control data from a control unit described later. It has a PLL circuit 18 for transmitting a voltage signal.

It should be noted that the muting circuit 15 prevents the speaker section 17 from outputting an unpleasant sound generated during the automatic follow-up operation based on the AF list or during the frequency switching operation when updating the memory of the AF list. It is for muffling.

Although not shown, this RDS receiver employs a diversity antenna as the receiving antenna 11, and has two radio tuners each including the front end section 12, the IF detection circuit 13 and the PLL circuit 18.
Since it is provided one by one, AM at one receiving antenna 11
It is also possible to receive the broadcast and receive the FM broadcast with the other receiving antenna 11.

The data extraction system 20 includes the I
RD from the intermediate frequency signal detected by the F detection circuit 13
RDS decoder 21 for decoding S data, and R
The output data of the DS decoder 21 is sequentially grouped and block-synchronized, and an error detection / correction circuit 22 that detects an error in the output data and corrects the error-detected data is provided. There is.

The output data of the RDS decoder 21 is a 4-bit data of 26 bits as shown in FIGS.
Since each block is a 104-bit group unit, in the error detection / correction circuit 22,
For the output data from the RDS decoder 21, 1 is assigned to each 10-bit check word of each block.
The error detection is sequentially performed on the 16-bit information word based on the 0-bit offset word.

The control system 30 includes a reception level detection circuit 31 for detecting the reception level of the intermediate frequency signal detected by the IF detection circuit 13, and RDS data extracted by the data extraction system 20. For example, a RAM 32 that stores an AF list and a PI code, an operation panel 35 that includes a display 33 that displays various information and operation keys 34 that input various commands, and control that controls the entire RDS receiver. And a section 36.

The reception level detection circuit 31 has the IF
By monitoring the detection output level of the detection circuit 13,
The reception level such as a signal meter (hereinafter, simply referred to as S meter) value which is electric field strength data in a reception signal and a noise level value such as multipath interference is detected.

On the operation keys 34 of the operation panel 35,
POWER to turn the RDS receiver on and off
Key 34a and volume UP key 34 for adjusting the volume
b or volume DOWN key 34c, RDS key 34d for extracting RDS data, and TA key 34e for activating a traffic information interruption standby (traffic information interruption mode)
For example, a source mode switching key 34f for switching a sound source such as a tape deck or a CD player, six preset keys 34g for selecting a preset broadcasting station with one touch, and a seek for assigning each broadcasting station to the preset key 34g. Auto store key 34h that automatically operates and UP that manually operates the desired reception frequency
It has a key 34i, a DOWN key 34j, and the like.
By the input operation of the source mode switching key 34f, it is possible to switch and set to the CD mode, the AM mode, the FM mode, the tape mode or the like.

The control unit 36 controls the data extraction system 2
The AF list extracted at 0, the PI code, the reception level detected by the reception level detection circuit 31, etc.
In addition to storing the data in the AM 32, executing control corresponding to the operation input from the operation key 34, and transmitting a voltage signal corresponding to a desired frequency from the PLL circuit 18 based on the control data from the operation key 34. The muting circuit 15 is ON / OFF controlled according to a predetermined input of the operation key 34.

The RAM 32 has N preset memory areas 32a corresponding to the preset keys 34g and a spare memory area 32b as shown in FIG. , Station data related to a broadcasting station assigned to each preset key 34g, that is, A for each PI code corresponding to the broadcasting station.
The F list and reception levels (S meter value and noise level value) at each broadcasting station in the AF list are stored, and the broadcasting station assigned to the preset key 34g is stored in the spare memory area 32b. The PI code, the AF list, and the reception level (S meter value and noise level value) corresponding to a broadcasting station other than the above, that is, a broadcasting station not assigned to the preset key 34g are stored. Each preset key 34g is a PI
The broadcasting station is stored for each code.

Now, the operation of the RDS receiver will be described.

First, a process for activating a RAM data update process for storing and updating the AF list and PI code extracted by the data extraction system 20 in the RAM 32 will be described. FIG. 2 is a flowchart showing the processing operation of the control unit 36 in the data update activation processing.

In FIG. 2, the control unit 36 determines whether or not the ACC power supply of the vehicle equipped with the RDS receiver is turned off (step S11). The ACC power supply is O
If the FF has been performed, the process proceeds to the RAM data update process (step S20) shown in FIG. 3 described later, the RAM data update process is executed, and then the data update activation process is ended.

If the ACC power supply is not turned off in step S11, it is determined whether or not the power supply of the on-vehicle RDS receiver is turned off (step S1).
2). In addition, turning on / off the power source is performed on the operation panel 3
It can be realized by monitoring the input of the POWER key 34a in FIG.

If the vehicle-mounted RDS receiver is powered off in step S12, the process proceeds to step S20. If the power supply of the in-vehicle RDS receiver is not turned off in step S12, a mode other than the FM mode, for example, AM mode, tape mode, CD, etc.
It is determined whether the mode or the like has been switched (step S13). The switching to a mode other than the FM mode can be realized by monitoring the input of the source switching key 34f on the operation panel 35.

If the mode has been switched to another mode in step S13, the process proceeds to step S20. If the mode has not been switched to another mode, the process proceeds to step S11.

Therefore, according to the data update activation process shown in FIG. 2, when the power of the RDS receiver is turned off, the ACC power is turned off, or the mode is switched to another mode other than the FM mode, that is, the FM broadcast program that the user wants to listen to. Since the intention to indicate that there is no intention is indicated by the key operation, the RDS data such as the AF list and PI code obtained by the data extraction system 20 is stored in the RAM 32.
The user does not feel uncomfortable due to the conventional AF check operation performed immediately before listening to the desired FM broadcast and the mute at the time of updating the data.

Then, R in step S20 shown in FIG.
The AM data update process will be described. 3 and 4 are flowcharts showing the processing operation of the control unit 36 in the RAM data update processing.

The RAM data update processing is the PI code of the broadcasting station assigned to the preset key 34g, the AF list corresponding to the PI code, and the noise level value and S meter value of each broadcasting station in the AF list. Is stored in the RAM 32 and updated.

In FIG. 3, the control unit 36 controls the preset memory area 32 corresponding to the preset key 34g of "1".
a preset No. Is set to "1" (step S2
1) Set the reception frequency to the minimum reception frequency within the reception band of the FM radio broadcast (step S22),
It is determined whether or not there is a station detection signal of a broadcasting station corresponding to the set reception frequency (step S23).

If there is the station detection signal, the reception level of the broadcasting station is acquired via the reception level detection circuit 31 (step S24), and the acquired reception level is RD.
It is determined whether or not the reception level is such that the S data can be read (step S25).

If the obtained reception level is a reception level at which RDS data can be read, it is determined whether or not the same PI code as that of the broadcasting station of the currently received reception frequency is present in the preset memory area 32a ( Step S2
6). The same PI is stored in the preset memory area 32a.
If there is no code, it is determined that the same program is not stored in duplicate in the preset memory area 32a, and the preset No. Determines whether it has exceeded the N value (step S27). The N value is the preset key 34
This corresponds to the number of g, and in the case of the present embodiment, the number of preset keys 34g is six, that is, there are six broadcasting stations, so the value of N is six.

The preset No. Does not exceed the N value, it is determined that the same program is not redundantly stored in the preset memory area 32a, and as shown in FIG. Store the station data of the broadcasting station (step S2
8). The station data corresponds to the PI code, the AF list corresponding to the PI code, and the reception level at each broadcasting station in the AF list.

After the station data is stored in the empty preset memory area 32a in step S28, the preset No.
Is incremented by 1 (step S29), the reception frequency is increased by one step (step S30), and it is determined whether or not the reception band of the FM broadcast has been completed (step S3).
1). If the reception band has been completed, the process moves to M1 shown in FIG. If the reception band has not been completed, the process proceeds to step S23.

If there is no station detection signal in step S23, or if the reception level is such that RDS data can be read in step S25, the process proceeds to step S30.

In step S27, the preset N
o. If N exceeds the N value, it is determined that there is no empty preset memory area 32a in the RAM 32, the station data is stored in the spare memory area 32b of the RAM 32 (step S33), and the process proceeds to step S30.

If the same PI code exists in the preset memory area 32a in step S26, the station data is stored and updated in the preset memory area 32a having the same PI code (step S32), and the process proceeds to step S30. .

In M1 shown in FIG. 4, the control unit 36 sets the priority order No. in descending order of S meter value in the AF list for each PI code in the station data stored in each preset memory area 32a. (Step S41),
For those having the same S meter value in the AF list, the one with a lower noise level value is given priority (step S
42), when the S meter value and the noise level value are the same in the AF list, a priority order is given to give priority to the one having a lower reception frequency (step S43), and the R
The AM data update process ends.

In the processing operations of steps S41, 42, and 43, the first priority condition is the order of the largest S meter value corresponding to each broadcasting station in the AF list in the same PI code. Has a lower priority level in the order of lower noise level as the second priority condition, and in the case of the same S-meter value and the same noise level value, lower priority as the third priority condition in the order of lower reception frequency. Is given.

Therefore, according to the RAM data updating process shown in FIGS. 3 and 4, when the station data of each broadcasting station is stored in the RAM 32, the reception level of each broadcasting station in the AF list of the station data is received. The priority levels are stored in the order of good reception level based on the checked reception level, so that during the automatic tracking operation described later, the reception level is determined to be good based on the priority level. The same program broadcast can be received quickly and smoothly.

Further, according to the RAM data updating process shown in FIGS. 3 and 4, for example, the traffic information interrupt such as TA data is executed in the other mode than the FM mode, that is, in the other mode. It is also assumed that the data extraction system 20 has to be activated. Therefore, the RAM data updating process in such a case will be described. FIG. 6 is a flowchart showing the processing operation of the control unit 36 in the RAM data update processing. In the flowchart of FIG. 6, the case where the mode other than the FM mode is switched to, for example, the tape mode will be described.

In FIG. 6, the control unit 36 determines whether or not the FM mode has been switched to another mode other than the FM mode, for example, the tape mode (step S7).
1). If the mode has been switched to another mode, it is determined whether or not the TA is waiting for a traffic information interrupt (step S72). If not in the TA standby state, a preset frequency, for example, the last memory frequency is received (step S73), and it is determined whether or not the S meter value of the received broadcasting station is equal to or more than a predetermined value (step S73). S74).

If the S meter value is equal to or greater than a predetermined value, station data of the receiving station, that is, the PI code of the receiving station, the AF list corresponding to the PI code, and the AF
The reception level relating to each broadcasting station in the list is stored in the preset memory area 32a corresponding to the reception station (step S75), and the priority level No. is determined based on the reception level in the station data. Is updated (step S76), and it is determined whether or not the reception band of the FM broadcast has been rotated once (step S7).
7).

If the reception band of the FM broadcast has been circulated once, the timer is cleared (step S78), and it is determined whether the set time has elapsed (step S79).
If the set time has elapsed, it is determined whether the FM mode has been switched to (step S80). If the mode has been switched to the FM mode, the RAM data update process ends.

The necessity of step S78 and step S79 is that when switching from the FM mode to another mode,
If the data is updated only once, the contents of the data will change immediately when the car equipped with the RDS receiver moves, so a timer will be provided to update the data about once every 10 minutes. By doing so, the load on the control unit 36 relating to the data update is greatly reduced.

If the mode other than the FM mode is not switched in step S71, the RA is concerned.
The M data update process ends. TA in step S72
If it is on standby, the process proceeds to step S80. If the electric field strength of the receiving station is not more than the predetermined value in step S74, the process proceeds to step S77.

If the reception band of the FM broadcast is not circulated once in step S77, the reception frequency is updated by one step to the next reception frequency (step 81), and step S
The process moves to 74.

If it has not been switched to the FM mode in step 80, the process proceeds to step 72.

Therefore, according to the RAM data updating process shown in FIG. 6, even if the mode other than the FM mode is switched to, it is in the traffic information interrupt standby state, that is, the data extraction system 20 is operating. In this case, since the RAM data update process is not executed, the same effect as the RAM data update process shown in FIGS. 3 and 4 can be obtained without hindering the traffic information interrupt operation using the RDS data.

Further, the RDS receiver has an auto store function. The auto store function is often used when a new receiver is purchased or when the reception area is significantly moved.
There is no doubt that further effects can be obtained by performing M data update processing. Therefore, the RAM data updating process performed during such an auto store operation will be described. 7 and 8 are flowcharts showing the processing operation of the control unit 36 in the auto store RAM data update processing.

The control unit 36 shown in FIG. 7 determines whether or not the auto store key 34h has been input (step S1).
21). If the auto store key 34h is input, the preset No. corresponding to the assigned preset key 34g. N value of is set to "1" (step S1
22), the reception frequency to seek is set and received (step S123), the reception level of the received reception station is detected through the reception level detection circuit 31 (step S124), and the detected reception level is detected. Determines whether the RDS data is readable at the reception level (step S125). If the reception level is a readable reception level, the RDS data is read (step S
126), the preset number corresponding to the preset key 34g. Is determined to exceed "6" (step S
127).

A preset No. corresponding to the preset key 34g. Does not exceed "6", the current preset No. Preset memory area 32a corresponding to
The reception frequency relating to the broadcasting station being received is stored in step S128, and the preset No. Is incremented by 1 (step S129), and the process proceeds to M4 shown in FIG.

If the auto store key 34h has not been input in step S121, the auto store RAM data updating process is terminated. Step S
If the reception level of the receiving station at 125 is not a level at which RDS data can be read, the preset memory area 32a
It is determined whether or not the same frequency as that of the receiving station is included in the AF list (step S130).

If there is the same frequency as the receiving station in the AF list, the receiving level of the corresponding frequency in the AF list is rewritten to the receiving level obtained in step S124 (step S131), and the receiving frequency is stepped by one step. It is up (step S132), and it is determined whether or not the reception band of the FM broadcast has completed one round by the seek up (step S133). If the reception band has been lapped once, the auto store RAM data update processing is ended.

In step S127, the preset N
o. 8 exceeds "6", the process proceeds to M4 shown in FIG.

If the same frequency as the receiving station is not found in the AF list in step S130, step S132.
Move to If it is determined in step S133 that the reception band of the FM broadcast has not been completed, the process proceeds to step S123.

Next, in M4 shown in FIG. 8, the control unit 36
Is A in the preset memory area 32a of the RAM 32.
It is determined whether or not there is the same frequency as the receiving station currently receiving in the F list (step S141). If the same frequency as the receiving station exists in the AF list, it is determined whether the PI code corresponding to the AF list and the PI code of the receiving station are the same (step S142). If these PI codes are the same, the process proceeds to M6 shown in FIG.

If the PI codes are not the same in step S142, an "x" mark is added to indicate that the broadcasting station of the corresponding frequency in the AF list is broadcasting a different program, as shown in FIG. Then (step S143), the process proceeds to M5 shown in FIG. It should be noted that in step S143, as shown in FIG. 9, the frequency is marked with an "x" to identify that it is not the same program, but the reception level is not rewritten.

If the same frequency as the receiving station is not found in the AF list in step S141, the AF of the new PI code is set.
The list, that is, the station data of the receiving station is stored in the empty preset memory area 32a (step S144), and the process proceeds to M5 shown in FIG. In step S144, the station data of the receiving station is stored in the empty preset memory area 32a.
It was stored in the empty preset memory area 3
If there is no 2a, it is stored in the spare memory area 32b.

Therefore, according to the auto store RAM data updating process shown in FIGS. 7 and 8, the AF list corresponding to each PI code and the AF in question at the time of new use and the auto store function used at the time of moving to a new receiving area are performed. Since the reception level of each broadcasting station in the list is stored in the RAM 32, it is very convenient. In the auto store RAM data updating process, the priority order in the AF list stored in the RAM 32 may be added, and in this case, it is as shown in FIG.

Further, according to the auto store RAM data update processing, it is the same as one in the AF list transmitted as the RDS data due to the problems of the broadcasting station or the broadcasting administration, regional or topographical problems such as borders, etc. If there is a broadcasting station broadcasting different programs at different frequencies, in the past, the broadcasting station broadcasting the different programs will be received once during the automatic tracking operation. It is judged as a malfunction of the machine. However, as shown in step S143, the AF currently stored in the RAM 32 is stored.
When there are stations of different programs in the list,
By attaching the "x" mark, a situation in which a broadcast station of a different program is received during the automatic tracking does not occur.

According to the auto store RAM data update processing, although the RDS broadcasting is actually performed due to the inadequacy of the broadcasting station side or the broadcasting administration, it is incorporated in the AF list transmitted as the RDS data. Since there is a station that does not exist, it is impossible to automatically follow the broadcasting station that is not incorporated in the conventional automatic tracking operation, but as shown in step S144, the AF list of the new PI code is displayed. Since the station data is created and the station data is stored, even if the station data is not incorporated in the AF list, the broadcasting station that is not incorporated can be recognized.

Next, the automatic follow-up operation based on the station data stored in the RAM 32 will be described. FIG.
6 is a flowchart showing a processing operation of the control unit 36 in the first automatic follow-up operation processing.

The first automatic follow-up operation processing is based on the priority order in each broadcasting station for each same program obtained from the RAM data update processing shown in FIGS. 3, 4, 6, 7 and 8. Is a process for receiving the same program broadcast having a good reception level.

In FIG. 10, the control unit 36 determines whether or not the S meter value at the currently receiving broadcasting station has become less than or equal to a predetermined value (step S51). If the S-meter value at the broadcasting station currently being received falls below a predetermined value,
The reception frequency and the reception level of the receiving station are stored in the RAM 32 (step S52), and the broadcasting station having the highest priority is set based on the priority stored in the preset memory area 32a of the receiving station (step S52). S53), the muting circuit 15 is muted (step S54), the broadcasting station of the priority set previously is received (step S55), and the S level of the receiving station is received through the reception level detection circuit 31. It is determined whether or not the meter value is equal to or higher than a predetermined value and the noise level value is equal to or lower than a predetermined value (step S56).

If the S meter value of the receiving station is equal to or more than a predetermined value,
If the noise level value is less than or equal to the predetermined value, the muting of the muting circuit 15 is canceled (step S).
57), and ends the first automatic tracking operation process.

If the S meter value of the receiving station is not more than the predetermined value and the noise level value is not less than the predetermined value in step S56, the priority order No. set previously is set. Is incremented by 1 and set (step S58), and the priority order No. in the preset memory area 32a related to the receiving station is set. Is the maximum value, that is, the priority number. The last N in
o. It is determined whether or not (step S59). still,
The priority No. The determination as to whether or not is the maximum value corresponds to the number of broadcasting stations in the AF list stored in the preset memory area 32a.

At step S59, the priority order number. Is the maximum value, the priority number. 1, that is, the highest-priority broadcasting station is set (step S60), the receiving frequency is received before the mute, that is, the receiving station received in step S51 (step S61), and the sound of the muting circuit 15 is received. The mute is released (step S62), and it is determined whether or not the S meter value of the receiving station is below a predetermined value (step S63). If the S meter value is not less than or equal to the predetermined value, the first automatic follow-up operation process ends.

At step S59, the priority order number. If is not the maximum value, the process proceeds to step S61. If the S meter value is less than or equal to the predetermined value in step S63, the timer is started (step S64), and it is determined whether the predetermined time of the started timer has elapsed (step S65). If the predetermined time has elapsed, the process proceeds to M2 in the figure. The processing operations of step S61 and step S62 are carried out in order to avoid the unpleasant feeling given to the user due to the muting for a long time. In addition, step S64 and step S65
The processing operation of is for monitoring that the reception level becomes good by opening the time interval.

Therefore, according to the first automatic follow-up operation process shown in FIG. 10, R shown in FIGS. 3, 4, 6, 7 and 8 is used.
Each preset memory area 32 by AM data update processing
Since the automatic follow-up operation is executed based on the priority order of each same program stored in a, it is possible to quickly and smoothly receive a broadcasting station having a good reception level,
Moreover, it is possible to largely avoid the user's uncomfortable feeling related to the long-term mute, which is related to good reception by the broadcasting station.

In the first automatic tracking operation process, since the vehicle equipped with the RDS receiver is moving, the actual reception level and the priority order stored in the preset memory area 32a during the tracking operation. It is conceivable that there may be a slight deviation from the reception level due to.

Therefore, in order to overcome such a situation, the second automatic follow-up operation process shown in FIG. 11 can be considered. FIG.
1 is a flowchart showing the processing operation of the control unit 36 in the second automatic follow-up operation processing.

According to the second automatic follow-up operation process, the preset memory area 32a is set even during the automatic follow-up operation.
This is a process of always receiving a broadcast station having a good reception level while updating the priority order stored in.

In FIG. 11, the control unit 36 determines whether or not the S meter value of the broadcasting station currently being received is less than or equal to a predetermined value (step S91). If the S meter value is less than or equal to a predetermined value, the frequency and reception level of the receiving station are stored in the RAM.
32 in the preset memory area 32a corresponding to the broadcasting station currently being received (step S92).
o. The receiving station No. 1 is set (step S93), and the muting circuit 15 mutes audio (step S94). Is received (step S95), and it is determined whether the S meter value of the receiving station is a predetermined value or more and the noise level value is a predetermined value or less (step S96).

If the S meter value of the receiving station is equal to or more than a predetermined value,
If the noise level value is less than or equal to the predetermined value, the reception level currently being received is stored and updated (step S97), and the process shifts to the priority update process shown in FIG. 9 described later (step S1).
10), after the priority update processing, cancel the audio mute of the muting circuit 15 (step S98),
The second automatic tracking operation is ended.

If the S meter value of the receiving station is not less than the predetermined value and the noise level value is not less than the predetermined value in step S96, the receiving level of the current receiving station is stored and updated (step S96).
99), the priority number No. of the preset memory area 32a corresponding to the current receiving station. Is set to +1 increment (step S100), and the priority No. Determines whether or not has reached the maximum value (step S101).

The priority number No. Is reached to the maximum value, the process proceeds to the priority order updating process shown in FIG. 9 (step S110), and the priority order N is set after the priority order updating process.
o. No. 1 broadcasting station is set (step S102), the current reception frequency is received at the broadcasting station which was received in step S91 (step S103), and the audio muting of the muting circuit 15 is canceled (step S104). ,
It is determined whether or not the S meter value of the receiving station is less than or equal to a predetermined value (step S105). If the S meter value of the receiving station is less than or equal to the predetermined value, the timer is started (step S106), and it is determined whether a predetermined time has elapsed (step S107). If the predetermined time has elapsed, the process proceeds to M3 in the figure.

In step S101, the priority order N
o. Is not the maximum value, the process proceeds to step S103.

Next, the priority order updating process in step S110 will be described. FIG. 12 is a flowchart showing the processing operation of the control unit 36 in the priority update processing.

In FIG. 12, the control unit 36 gives priority to each broadcasting station in the AF list of the preset memory area 32a corresponding to the PI code currently being followed in descending order of S meter value (step S111). If there is the same S meter value at the time of giving the priority, the one with the lower noise level value is given priority (step S112). If the S meter value is the same and the noise level value is the same, the priorities are given in ascending order of reception frequency. Grant (step S113),
The priority update processing is ended.

Therefore, according to the second automatic follow-up operation process shown in FIG. 11, the latest priority is updated while performing the automatic follow-up operation, so that the user always receives a broadcasting station having a good reception level. be able to.

FIG. 13 is a flow chart showing the processing operation of the control unit 36 in the priority update processing according to another embodiment of the present invention. Since the configuration is substantially the same as that of the above-mentioned embodiment, the same components as those in the above-mentioned embodiment are designated by the same reference numerals, and the duplicated description will be omitted.

Normally, in such an in-vehicle RDS receiver, the traffic information interrupt is waiting in the modes other than the FM mode (in the traffic information interrupt mode; TA waiting).
In addition, when the reception level of the TP station transmitting the TA data is lower than a predetermined value, that is, when the reception status of the TP station deteriorates, the TP auto-retune operation for searching for a TP station having a good reception status is executed. In the traffic information interrupt mode, when TA data is received from the TP station, the TA data is preferentially decoded even if the current mode is not the FM mode.

The priority update processing shown in FIG. 13 is the reception level (S meter value and noise level value) of each broadcasting station received along with the TP auto-retune operation even while waiting for the traffic information interrupt. Based on this reception level, the priority order in the AF list stored in the preset memory area 32a is measured and stored and updated in descending order of reception level.

The control unit 36 shown in FIG. 13 determines whether the TA is on standby (step S161). If the TA is on standby, it is determined whether or not the S meter value of the currently receiving receiving station is equal to or greater than a predetermined value (step S162). If the S meter value of this receiving station is greater than or equal to the predetermined value, it is determined whether the noise level value of this receiving station is less than or equal to the predetermined value (step S163). If the noise level value of this receiving station is less than or equal to a predetermined value, it is determined whether this receiving station is a TP station (step S164).

If this receiving station is a TP station, it is determined whether TA data is being received (step S16).
5). If TA data is being received, a TA interrupt operation is executed (step S166), and this priority order updating process ends.

If TA data is not being received in step S165, the process proceeds to step S161. Step S
If it is not in TA standby at 161, the process proceeds to M7 in the figure.

Further, in step S162, the S-meter of the receiving station is not more than the predetermined value, or in step S163 the noise level value of the receiving station is not less than the predetermined value, or in step S164, the receiving station sets the TP level. If it is not a station, the TP auto-retune operation is started (step S16).
7) In order to search for another TP station, the reception frequency is updated by one step and set (step S168), and it is determined whether or not the S meter value of the set reception station is equal to or more than a predetermined value (step S168). S169).

If the S meter value of this receiving station is greater than or equal to the predetermined value, it is determined whether or not the noise level value of this receiving station is less than or equal to the predetermined value (step S170). If the noise level value of this receiving station is less than or equal to a predetermined value, this receiving station
It is determined whether or not it is the P station (step S171). If this receiving station is a TP station, the receiving frequency of the current receiving station is R
It is stored in the AM 32 (step S172), and it is determined whether TA data is being received (step S173).
If TA data is being received, the process proceeds to step S166.

Further, in step S169, the S meter value of the receiving station is not more than the predetermined value, or step S170
If the noise level value of the receiving station is not less than the specified value at,
Or, if the receiving station is not a TP station in step S171,
Or, if TA data is not being received, M8 shown in FIG.
Move to

In M8 shown in FIG. 14, the control unit 36
It is determined whether or not there is the same frequency as the reception frequency of the receiving station set in step S168 shown in FIG. 13 in the AF list stored in the preset memory area 32a (step S181).

If there is the same frequency in the preset memory area 32a, S in step S169 shown in FIG.
Based on the reception level including the meter value and the noise level value in step S170, the preset memory area 32
The priority of a is updated (step S182), and the reception frequency set in step S168 shown in FIG.
It is determined whether or not the seek has been completed in all the broadcasting stations in the FM reception broadcast band after making one round in the M reception broadcast band (step S183).

[0145] If the reception frequency of the TP station is stored in the RAM 32, it is determined whether or not the reception frequency of the TP station is stored in the RAM 32.
That is, it is determined whether or not there is the reception frequency stored in step S172 shown in FIG. 13 (step S18).
4). If the reception frequency of the TP station exists in the RAM 32, this reception frequency is set (step S185), and
M3 shown in No.

If there is no identical frequency in the preset memory area 32a in step S181, step S181.
Move to 183. If the FM reception broadcast band has not been completed in step S183, the process proceeds to M10 shown in FIG.

If there is no reception frequency of the TP station in the RAM 32 in step S184, the reception frequency of the TP station received in step S162 shown in FIG. 13 is set (step S186) and shown in FIG. Move to M9.

As described above, according to the priority order updating process shown in FIGS. 13 and 14, the reception level (S meter value and noise level value) of each broadcasting station received by the TP auto-retune operation is measured. The priority of each broadcasting station in the AF list stored in the preset memory area 32a is stored and updated based on the measurement result.

As described above, the user's original purpose of the TP auto-retune operation is to seek a TP station having a good reception level. When the TP auto-retune operation is performed, the memory update is executed and the memory update is performed. The muting of the accompanying FM broadcast does not cause any discomfort.

Even during TA standby, the priority order in the AF list can be stored and updated during the TP auto-retune operation. Moreover, during the automatic follow-up operation, it is possible to quickly and smoothly receive the broadcasting station having the best reception level based on the priority order in the AF list stored in the preset memory area 32a.

FIG. 15 is a flow chart showing the processing operation of the control unit 32 in the priority update processing of another embodiment. Since the configuration is substantially the same as that of the above-mentioned embodiment, the same components as those in the above-mentioned embodiment are designated by the same reference numerals, and the duplicated description will be omitted.

Generally, in a vehicle-mounted RDS receiver, since a diversity antenna is used as the receiving antenna 11, a radio tuner section corresponding to each receiving antenna 11 is provided, and for example, one radio tuner section has an AM. Even when the broadcast is received, the other radio tuner unit can receive the FM broadcast. The radio tuner section referred to here corresponds to the front end section 12, the IF detection circuit 13, and the PLL circuit 18.

In such an RDS receiver, the FM
In any mode other than the mode, for example, in the AM mode, the CD mode, or the tape mode, FM broadcast is received by one of the radio tuner units, and the S-meter value of the last broadcast station received in the FM mode RDS data acquisition is monitored, and when the reception level of this broadcasting station deteriorates, an automatic follow-up operation is performed so as to receive the broadcasting station with a good reception level.

The priority update processing shown in FIG. 15 is the reception level (S meter) of all the broadcasting stations in the FM broadcast reception band after the automatic follow-up operation is executed in a mode other than the FM mode. Value and noise level value), and based on the measurement result, the preset memory area 32a
The priority order of each broadcasting station in the AF list stored in is updated.

In FIG. 15, the control unit 32 determines whether or not to start the automatic follow-up operation (step S191).
If this automatic follow-up operation is to be started, this automatic follow-up operation is executed (step S192), and it is determined whether or not this automatic follow-up operation has ended (step S193).
The determination of the start of the automatic follow-up operation in step S191 depends on whether or not the reception level at the FM broadcasting station being received has dropped below a predetermined value.

If the automatic follow-up operation is completed in step S193, it is determined whether or not the current mode is a mode other than the FM mode (step S194). If the current mode is other than the FM mode, the reception frequency is updated by one step and set (step S19).
5) It is determined whether or not the S meter value of the set receiving station that is currently receiving is greater than or equal to a predetermined value (step S1).
96).

If the S meter value of this receiving station is greater than or equal to the predetermined value, it is determined whether or not the noise level value of this receiving station is less than or equal to the predetermined value (step S197). If the noise level value of this receiving station is less than or equal to the predetermined value, it is determined whether or not RDS data can be acquired by this receiving station (step S198).

If RDS data can be obtained at this receiving station, it is judged whether or not there is the same frequency as the receiving frequency of this receiving station in the AF list stored in the preset memory area 32a ( Step S199).

If the same frequency is present in the preset memory area 32a, the priority order of the preset memory area 32a is updated based on the reception level based on the S meter value of step S196 and the noise level value of step S197 ( (Step S200), it is determined whether or not the reception frequency set in step S196 makes one round in the FM reception broadcast band, that is, the seek for all broadcasting stations in the FM reception broadcast band is completed (step S201).
If the FM reception broadcast band has been circulated once, the processing operation of the priority order update processing is ended.

If the automatic follow-up operation is not started in step S191, the processing operation of the priority order updating processing is ended. If the current mode is not any other mode than the FM mode in step S194, the process proceeds to step S191.

Further, in step S196, the S meter value of the receiving station is not more than the predetermined value, or step S197.
If the noise level value of the receiving station is not less than the specified value at,
Alternatively, if the receiving station cannot acquire the RDS data in step S198, the process proceeds to step S199.

If the same frequency as the reception frequency of the receiving station is not found in the AF list of the preset memory area 32a in step S199, the process proceeds to step S201.

As described above, according to the priority order updating process shown in FIG. 15, the reception levels (S meter value and S meter value) of all broadcasting stations in the FM reception broadcasting band after the automatic tracking operation in the modes other than the FM mode. The noise level value) is measured, and the priority order of each broadcasting station in the AF list stored in the preset memory area 32a is stored and updated based on the measurement result.

As described above, the purpose of the user is not to interrupt the current mode, that is, the modes other than the FM mode, even if the automatic follow-up operation is executed in the modes other than the FM mode. Even if the memory in the AF list is updated after executing the automatic follow-up operation in the other mode, the FM broadcast is not being listened to. Therefore, by muting the FM broadcast accompanying this memory update,
No discomfort.

Further, after the execution of the automatic follow-up operation in the modes other than the FM mode, the priority order in the AF list can be stored and updated. Moreover, during the new automatic tracking operation, the preset memory area 3
Based on the priority in the AF list stored in 2a,
The broadcasting station with the best reception level can be received quickly and smoothly.

Further, when the reception condition for the FM broadcast deteriorates in any mode other than the FM mode, there is a high possibility that the user is out of the area of the traffic information which the user is trying to obtain even during the TA standby. Therefore, the user does not have any trouble even if the traffic information is not obtained during the memory update of the priority order in the AF list.

In the priority order updating process shown in FIG. 15, the AF list is stored and updated in the RAM 32 after the automatic follow-up operation is executed in a mode other than the FM mode. The AF list may be updated at any time during the mode other than the FM mode, not only after the automatic follow-up operation is performed during the other modes.

[0168]

According to the multiplex broadcasting receiver of the first aspect of the present invention configured as described above, power is supplied to a receiving means such as an FM radio tuner for receiving an FM broadcast radio wave such as an RDS broadcast. Is not performed, for example, when the power supply to the entire multiplex broadcasting device is turned off, when the accessory power supply is turned off when the receiving device for multiplex broadcasting is applied to the vehicle, or a mode other than the FM mode is entered. When there is no FM broadcast program desired by the user at this time, ie, the PI code and frequency which are the program identification code through the FM radio tuner and the RDS decoder which is the data extracting means which are not needed by the user at this time. An AF list that is a list is extracted, and the extracted PI code and AF list are stored and updated in the storage means. Because the way was, by mute when stored and updated, such as in the prior art, without being subjected to discomfort, such as user desired FM broadcast program can not be listening,
A new AF list and PI code can be stored and updated.

According to the multiplex broadcasting receiver of the second invention, the traffic information related to TA data, TP data, etc. during the RDS broadcasting is not in standby (in the traffic information interrupt mode), and moreover, Only when power is not supplied to the receiving means such as the FM radio tuner, that is, when there is no desired FM broadcast program that the user listens to at the moment, the PI code which is the program identification code and the AF list which is the frequency list. Since it is stored and updated in the storage means, the user does not feel uncomfortable that the desired FM broadcast program cannot be listened to due to mute,
Moreover, the new AF list and PI code can be stored and updated in the storage means without disturbing the interrupt operation by the TA data and TP data.

Further, according to the multiplex broadcasting receiver of the third invention, the purpose is not to listen to the FM broadcast program desired by the user, but in reality, when the user newly purchases the multiplex broadcasting device or when receiving Since the AF list and the PI code of the broadcast radio wave received by the auto store function are stored and updated in the storage means when the auto store function that is often used is executed when the area is largely moved, Due to the muting at the time of storing and updating as in the conventional technique, a new AF list and PI code can be stored and updated without the discomfort that an FM broadcast program desired by the user cannot be heard.

Further, according to the multiplex broadcasting receiver of the fourth invention, the same reception frequency as the reception frequency received when the broadcast radio wave is received by the auto store function is included in the frequency list stored in the storage means. If the program identification code of the reception frequency received at the time of receiving the broadcast radio wave by the auto store function and the program identification code of the frequency list are the same, the AF corresponding to the reception frequency received by the auto store function is present. Since the list and the PI code are stored and updated in the storage means, they are the same as one in the AF list transmitted as multiple data due to regional or topographical problems such as inadequacy of the broadcasting station or broadcasting administration or borders. Even if there is a broadcasting station with different program content depending on the frequency, it is possible to reliably prevent accidental memory update. It can be obtained a reliable automatic follow-up operation based on the stored AF list.

Further, according to the multiplex broadcasting receiver of the fifth invention, in addition to the effect of the first, second, third or fourth invention, the AF list and the PI code are stored in the storage means. When updating, the priority order is determined in the order in which the reception level of the reception frequency is good, and the AF list and the PI code are stored and updated in the storage means with the determined priority order added. At the time of tracking, it is possible to quickly and smoothly select a broadcast wave having a good reception level based on the priority order stored in the storage means.

Further, according to the multiplex broadcasting receiver of the sixth invention, when the AF list and the PI code are stored and updated in the storage means, the priorities are determined in the order in which the reception level of the reception frequency is good. Since the AF list and the PI code are stored and updated in the storage means with the determined priority added, the reception level of the reception level is changed based on the priority stored in the storage means during automatic tracking. A good broadcasting station can be selected quickly and smoothly.

Further, according to the multiplex broadcast receiver of the seventh invention, in addition to the effects of the fifth or sixth invention, the reception level relating to the broadcast wave currently being received is lower than a predetermined value. When this is detected, the broadcasting station with a good reception level is received based on the priority order stored in the storage means. In addition, it is possible to smoothly receive broadcast radio waves with a good reception level.

According to the multiplex broadcast receiver of the eighth invention, in addition to the effects of the fifth, sixth or seventh invention, the reception level relating to the broadcast wave currently being received is greater than a predetermined value. If it also detects that it has decreased, the automatic tracking operation is executed.However, the reception level of the broadcast radio wave received by the follow-up is compared with the reception level of the broadcast radio wave before the follow-up, and a good result is obtained based on the comparison result. Since the receiving means receives the broadcast wave of the reception level, the broadcast wave having the good reception level at the time of the current reception is obtained regardless of the priority order stored in the storage means in the automatic tracking operation. Can be received smoothly and quickly.

According to the multiplex broadcasting receiver of the ninth invention, in addition to the effect of the eighth invention, the priority order in the frequency list corresponding to the same program broadcast stored in the storage means is Since the memory is updated based on the comparison result, during the automatic follow-up operation, regardless of the priority order stored in the storage means, it is possible to smoothly and quickly broadcast the radio wave with a good reception level at the current reception time. Can be received.

Further, according to the multiplex broadcasting receiver in the tenth aspect of the invention, the program identification code and the frequency list are extracted from the broadcast radio waves of the respective broadcasting stations received by the auto-retune operation, and these program identification codes are extracted. Since the frequency list corresponding to each program identification code is stored and updated in the storage means based on the frequency list,
Even if the AF list memory is updated during the auto-retune operation, this auto-retune operation aims to seek a traffic information broadcasting station with a good reception level. , It does not make the user feel uncomfortable.

According to the multiplex broadcast receiver of the eleventh invention, in addition to the effect of the tenth invention, when the frequency list and the program identification code are stored and updated in the storage means, The priority order is determined in the order of good reception level, and the frequency list and the program identification code are stored and updated in the storage means with the determined priority order added. It is possible to quickly and smoothly select a broadcast wave having a good reception level based on the priority order stored in.

Also, according to the multiplex broadcasting receiver in the twelfth aspect of the invention, the F
All FM broadcast radio waves in the M broadcast band are sequentially received, a program identification code and a frequency list are extracted from each FM broadcast radio wave, and a frequency corresponding to each program identification code is based on the program identification code and frequency list. Since the list is stored and updated in the storage means, it is not intended to listen to the FM broadcast while the mode other than the FM mode is set, and the AF list is stored and updated in the other modes. Even so, the user does not feel uncomfortable due to the muting of the FM broadcast accompanying this memory update.

Further, according to the multiplex broadcasting receiver in the thirteenth invention, after performing the automatic follow-up operation during the setting of modes other than the FM mode, all Fs within the FM broadcast band are
The M broadcast radio waves are sequentially received, the program identification code and the frequency list are extracted from each FM broadcast radio wave, and the frequency list corresponding to each program identification code is stored in the storage means based on the program identification code and the frequency list. Since the update is performed, the purpose is not to listen to the FM broadcast after the automatic follow-up operation is executed while the mode other than the FM mode is set. Even if the memory is updated, the user does not feel uncomfortable due to the mute of the FM broadcast accompanying the memory update.

According to the multiplex broadcasting receiver of the fourteenth invention, in addition to the effects of the twelfth or thirteenth invention, when the frequency list and the program identification code are stored and updated in the storage means, Since the priority order is determined in the order in which the reception level of the reception frequency is good, and the frequency list and the program identification code are stored and updated in the storage means in the form of adding the determined priority order, at the time of automatic tracking, It is possible to quickly and smoothly select a broadcast wave having a good reception level based on the priority order stored in the storage means.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration inside an RDS receiver showing an embodiment of a multiplex broadcasting receiver of the present invention.

FIG. 2 is a flowchart showing a processing operation of a control unit in the data update start processing of this embodiment.

FIG. 3 is a flowchart showing a processing operation of a control unit in the RAM data update processing of this embodiment.

FIG. 4 is a flowchart showing a processing operation of a control unit in the RAM data update processing of this embodiment.

FIG. 5 is an explanatory diagram showing a memory map inside a RAM of the present embodiment.

FIG. 6 is a flowchart showing the processing operation of the control unit in the RAM data update processing of this embodiment.

FIG. 7 is a flowchart showing the processing operation of the control unit in the auto store RAM data update processing of this embodiment.

FIG. 8 is a flowchart showing a processing operation of a control unit in the auto store RAM data update processing of the present embodiment.

FIG. 9 is an explanatory diagram showing a memory map inside a RAM in the auto store RAM data update processing.

FIG. 10 is a flowchart showing a processing operation of a control unit in the first automatic follow-up operation processing of this embodiment.

FIG. 11 is a flowchart showing a processing operation of a control unit in a second automatic follow-up operation processing of this embodiment.

FIG. 12 is a flowchart showing a processing operation of a control unit in priority update processing of the present embodiment.

FIG. 13 is a flowchart showing a processing operation of a control unit in priority update processing of another embodiment.

FIG. 14 is a flowchart showing a processing operation of a control unit in priority update processing of another embodiment.

FIG. 15 is a flowchart showing a processing operation of a control unit in priority update processing of another embodiment.

FIG. 16 is an explanatory diagram showing a baseband coding structure of a radio data signal.

FIG. 17 is an explanatory diagram showing a format structure of a type 0A group.

[Explanation of symbols]

10 audio output system (reception means) 20 data extraction system (data extraction means) 31 reception level detection circuit (level detection means) 32 RAM (storage means) 32a preset memory area 32b spare memory area 36 control unit (power supply determination means, Control means, interrupt standby determination means, first determination means, second determination means, frequency changing means, mode setting determination means)

Front page continued (72) Inventor Genichi Hayakawa 5-35-2, Hakusan, Bunkyo-ku, Tokyo Clarion Co., Ltd.

Claims (14)

[Claims] 1. A receiving means for receiving a broadcast radio wave including a program broadcast and data multiplexed in the program broadcast, which is transmitted from a broadcast station, and a broadcast radio wave received by the receiving means, which are different in transmission method. Data extraction means for extracting the frequency list of each broadcast radio wave broadcasting the same program and the program identification code indicating the same program, and the program identification code and frequency list extracted by the data extraction means are stored. Storage means, power supply means for supplying power to the device, power supply determination means for determining whether or not power is being supplied from the power supply means to the reception means, and the power supply determination means. When it is determined that power is not being supplied, the power supply means is caused to start supplying power to the receiving means, and the program identification code and the program identification code extracted by the data extracting means are supplied. Using frequency list, multiplex broadcast receiving apparatus characterized by a control means for a frequency list corresponding to the program identification code for each program identification code stored updated in the storage means. 2. An interrupt standby determination means for determining whether or not the traffic information extracted by the data extraction means is in an interrupt standby state, and the control means is provided to the interrupt standby determination means. If it is determined that the power is not being supplied to the receiving means by the power supply determining means and the power supply determining means determines that the power is not being supplied, the data extracting means is caused to start the power supply to the receiving means. 2. The multiplex broadcasting according to claim 1, wherein the frequency list corresponding to the program identification code is stored and updated in the storage means for each program identification code by using the program identification code and the frequency list extracted in. Receiver. 3. A receiving means for receiving a broadcast radio wave including a program broadcast and data multiplexed in the program broadcast, which is received from a broadcast station, and a broadcast radio wave received by the receiving means, the transmission method being different. Data extraction means for extracting a frequency list of broadcast radio waves broadcasting the same program and a program identification code indicating the same program, and storage means for storing the reception frequency received by the receiving means, An auto store function that sequentially changes the reception frequency according to a predetermined input, causes the reception unit to receive the broadcast radio waves corresponding to each reception frequency, and arbitrarily stores the reception frequency of the received broadcast radio wave in the storage unit A receiving device for multiplex broadcasting, comprising: a control means comprising: the control means, when the broadcast radio wave is received by the auto store function, the reception frequency of the broadcast radio wave, Using the program identification code and frequency list according to the signal frequency, multiplexed broadcast receiving apparatus characterized by the frequency list and receive frequencies according to the program identification code for each program identification code stored updated in the storage means. 4. A first determination means for determining whether or not the same frequency as the reception frequency of the broadcast radio wave received when the broadcast radio wave is received by the auto store function is in the frequency list stored in the storage means. , The program identification code of the broadcast wave received at the time of receiving the broadcast wave by the auto store function is the same as the program identification code stored in the storage means and corresponding to the frequency list having the same frequency as the reception frequency of the broadcast wave. In the case where the control unit has the same frequency in the first determination unit and the program identification code is the same in the second determination unit, By using the frequency list and the program identification code corresponding to the received reception frequency, the frequency list and the reception frequency related to the program identification code are obtained for each program identification code. Serial multiplex broadcast reception device according to claim 3, characterized in that the stored and updated in the storage means. 5. A level detection means for detecting a reception level of a broadcast radio wave received by the reception means, wherein the control means is based on a frequency list for each program identification code stored in the storage means. Each of the broadcast radio waves in the frequency list is sequentially received by the receiving means, and the reception level of the received broadcast radio wave is detected by the level detecting means. 5. The multiplex broadcasting according to claim 1, 2, 3 or 4, wherein priorities are determined and the determined priorities are stored and updated in the storage means in association with each broadcast radio wave in the frequency list. Receiver. 6. The multi-broadcast receiving apparatus according to claim 5, wherein the reception level is composed of electric field strength data and noise level data of broadcast radio waves received by the receiving means. 7. The control means, when detecting that the reception level relating to the broadcast radio wave currently being received is lower than a predetermined value, the control means selects a frequency in the frequency list corresponding to the same program broadcast as the broadcast radio wave being received. 7. The multiplex broadcast receiving apparatus according to claim 5, wherein the receiving means receives the broadcast radio waves having a good reception level based on the priority order. 8. The control means, when detecting that the reception level related to the broadcast radio wave currently being received is lower than a predetermined value, the control means sets the frequency in the frequency list corresponding to the same program broadcast as the broadcast radio wave being received. Based on the priority order, the receiving means is made to follow and receive the broadcast radio wave having a good reception level, and the level detecting means is made to detect the reception level of the follow-up received broadcast radio wave, and the reception of the follow-up received broadcast radio wave is performed. 8. The multiplex according to claim 5, 6 or 7, characterized in that the level is compared with the reception level of the broadcasting station before tracking, and the receiving unit receives the broadcast radio wave having a good reception level based on the comparison result. Broadcast receiver. 9. The multiplex according to claim 8, wherein the control unit stores and updates the priority order in the frequency list corresponding to the same program broadcast stored in the storage unit based on the comparison result. Broadcast receiver. 10. A receiving unit that receives a broadcast wave including a program broadcast and data multiplexed in the program broadcast, and a reception frequency of the broadcast wave to be received by the receiving unit are sequentially changed. Frequency changing means, level detecting means for detecting the reception level of the broadcast radio wave at the received broadcast station, frequency list of each broadcast radio wave broadcasting the same program from the received broadcast radio wave by a different transmission method, A program identification code indicating the same program, a traffic information broadcasting station code indicating a traffic information broadcasting station broadcasting traffic information, and a data extracting means for extracting traffic information from the traffic information broadcasting station, A storage means for storing the frequency list and the program identification code extracted by the data extraction means, and an exchange from a traffic information broadcasting station by the data extraction means. While setting the traffic information interrupt mode that preferentially extracts information, if the reception level of the broadcast radio wave of the traffic information broadcasting station falls below a predetermined value during this traffic information interrupt mode, other traffic information broadcasting stations A multiplex broadcasting receiver having a control means for executing an auto-retune operation for sequentially receiving broadcast radio waves of each broadcasting station to receive broadcast radio waves, wherein the control means is received during the auto-retune operation. A program identification code and a frequency list are extracted from the broadcast radio wave of the broadcasting station by the data extraction means, and a frequency list corresponding to each program identification code is stored in the storage means based on the program identification code and the frequency list. A receiver for multiplex broadcasting, characterized by updating. 11. The control means determines priorities of the broadcast radio waves in the frequency list corresponding to the program identification code stored in the storage means in the order of good reception level, and the priority is determined. 11. The multiplex broadcast receiving apparatus according to claim 10, wherein the priority is associated with each broadcast radio wave in the frequency list and stored and updated in the storage means. 12. Receiving means for receiving broadcast radio waves coming from a broadcast station, frequency changing means for sequentially changing the reception frequency of broadcast radio waves received by the receiving means, and reception of broadcast radio waves at the received broadcast station. Level detection means for detecting a level, and data for extracting from the received FM broadcast radio wave a frequency list of broadcast radio waves broadcasting the same program by different transmission methods and a program identification code indicating the same program. Extraction means, storage means for storing the frequency list and program identification code extracted by the data extraction means, mode setting determination means for determining whether or not a mode other than the FM mode is set, and FM All other FM broadcast radio waves within the FM broadcast band are sequentially received during the setting of modes other than the mode, and the program identification code and And a frequency list, and a control means for storing and updating the frequency list corresponding to each program identification code in the storage means based on the program identification code and the frequency list. . 13. Receiving means for receiving broadcast radio waves coming from a broadcasting station, frequency changing means for sequentially changing a reception frequency of broadcast radio waves received by the receiving means, and reception of broadcast radio waves at the received broadcasting station. Level detection means for detecting a level, and data for extracting from the received FM broadcast radio wave a frequency list of broadcast radio waves broadcasting the same program by different transmission methods and a program identification code indicating the same program. Extraction means, storage means for storing the frequency list and program identification code extracted by the data extraction means, mode setting determination means for determining whether or not a mode other than the FM mode is set, and FM When the reception level of the FM broadcast wave being received falls below a predetermined value during the setting of any mode other than the mode, the A stored in the storage means is stored. A multiplex broadcast receiver having a control means for executing an automatic tracking operation for receiving an FM broadcast radio wave having a good reception level based on an F list, wherein the control means is in a mode setting other than the FM mode. When the automatic follow-up operation is executed, all Fs in the FM broadcast band are
M broadcast radio waves are sequentially received, a program identification code and a frequency list are extracted from each FM broadcast radio wave, and a frequency list corresponding to each program identification code is stored and updated in the storage means based on the program identification code and the frequency list. A multi-broadcast receiving device characterized by being. 14. The control unit determines priorities in order of good reception level for each broadcast radio wave in the frequency list corresponding to the program identification code stored in the storage unit, and the determination is made. 14. The receiving apparatus for multiple broadcast according to claim 12, wherein the priority is associated with each broadcast radio wave in the frequency list and stored and updated in the storage means.