JP6837613B2 - Radio receiver and radio reception method - Google Patents

Description

The present invention relates to a radio receiving device and a radio receiving method for receiving RDS (Radio Data System) broadcasting and DAB (Digital Audio Broadcast) broadcasting.

In RDS broadcasting, which is a data broadcasting standard for digital multiplex FM radio broadcasting, the broadcasting station name is transmitted as a program service name (Program Service name: PS). The radio receiving device acquires the program service name PS, creates a broadcasting station list, and displays it on the display device. Among the RDS stations that transmit RDS broadcasts, some broadcast stations that transmit information other than the broadcast station name, such as the song name, singer name, or album name currently being broadcast, as the program service name PS (hereinafter referred to as the program service name PS). , "Dynamic PS station") exists. In the conventional radio receiver, the program service name PS at the acquired timing is registered in the broadcasting station list as the broadcasting station name. Therefore, when information other than the broadcasting station name is transmitted as the program service name PS, the broadcasting station name is used. Information other than may be registered.

Therefore, the radio receiving device according to Patent Document 1 receives DAB broadcasting, which is a digital radio broadcasting standard, in addition to RDS broadcasting. Then, the radio receiving device sets a service label (Service Label: SL) in DAB broadcasting having a service identification code (Service Identity: SId) that matches the program identification code (Program Identification code: PI) of the RDS broadcast to the broadcasting station. Use as a name.

JP-A-2007-74085

However, even with the method described in Patent Document 1, there is still a problem that erroneous recognition of the RDS station may occur. The causes of misrecognition are described below.

The program identification code PI for identifying a broadcasting station is composed of 16 bits, and the upper 4 bits (that is, 16 ways) represent a country code. Originally, the country code needs to be assigned to each country, but since there are only 16 country codes for 54 European countries, the same country code may be assigned to different countries. is there. Therefore, in the vicinity of the border, even if the program identification code PI of RDS broadcasting and the service identification code SId of DAB broadcasting match, there is a possibility that the RDS station and the DAB station are different broadcasting stations.

The present invention has been made to solve the above problems, and an object of the present invention is to correctly select a broadcasting station name of a dynamic PS station.

The radio receiving device according to the present invention is an RDS tuner that receives an RDS broadcast, a DAB tuner that receives a DAB broadcast, and an RDS that acquires a program identification code and a program service name from the RDS broadcast received by the RDS tuner. A data acquisition unit, a DAB data acquisition unit that acquires a service identification code and a service label from a DAB broadcast received by a DAB tuner, and a receivable station detection unit that detects an RDS station of a quality that can be received by the RDS tuner. , A dynamic PS determination unit that determines whether the RDS station detected by the receivable station detection unit is a dynamic PS station that transmits information other than the broadcasting station name as the program service name, and an RDS data acquisition unit. Match determination to determine whether the program identification code and program service name of the dynamic PS station acquired by the above match the service identification code and service label of the dynamic PS station acquired by the DAB data acquisition unit, respectively. If it is determined by the match determination unit that the program identification code and the service identification code of the dynamic PS station match and that the program service name and the service label match, the service label is used as the broadcasting station name of the dynamic PS station. e Bei a broadcasting station name selection unit for selecting a broadcast station name selection unit, when it is determined that there is no service identification code that matches the program identification code of the dynamic PS station by the match determination unit, a plurality the RDS data acquisition unit The feature is that the program service name having the highest number of appearances is selected as the broadcasting station name of the dynamic PS station from among the plurality of program service names acquired times .

According to the present invention, when the program identification code and the service identification code of the dynamic PS station match and the program service name and the service label match, the service label is selected as the broadcasting station name of the dynamic PS station. Therefore, the broadcasting station name of the dynamic PS station can be selected correctly.

It is a block diagram which shows the structural example of the radio receiving apparatus which concerns on Embodiment 1. FIG. It is a flowchart which shows the operation example of the radio receiving apparatus which concerns on Embodiment 1. FIG. It is a figure explaining the example of the RDS station in Embodiment 1. FIG. It is a figure which shows the list example of the DAB data acquired by the DAB data acquisition part of Embodiment 1. FIG. It is a figure which shows the example of the RDS station list displayed by the display device of Embodiment 1. FIG. It is a block diagram which shows the structural example of the radio receiving apparatus which concerns on Embodiment 2. FIG. It is a flowchart which shows the operation example of the radio receiving apparatus which concerns on Embodiment 2. FIG. It is a figure which shows the hardware configuration example of the control part in the radio receiving apparatus which concerns on each embodiment.

Hereinafter, in order to explain the present invention in more detail, a mode for carrying out the present invention will be described with reference to the accompanying drawings.
Embodiment 1.
FIG. 1 is a block diagram showing a configuration example of the radio receiving device 100 according to the first embodiment. The radio receiver 100 includes an RDS main tuner 1, an RDS sub-tuner 2, an audio DSP (Digital Signal Processor) 3, an amplifier 4, a speaker 5, a DAB tuner 6, a DAB decoder 7, an input device 8, and a display device 9. And the control unit 10. The control unit 10 includes a receivable station detection unit 11, an RDS data acquisition unit 12, a DAB data acquisition unit 13, a dynamic PS determination unit 14, a match determination unit 15, a broadcasting station name selection unit 16, and a broadcasting station name storage unit 17. Including.

The RDS main tuner 1 receives the RDS broadcast of the RDS station selected by the user, and outputs the received signal to the audio DSP3. The audio DSP 3 AD (Analog Digital) converts the RDS broadcast signal received by the main tuner 1 for RDS, performs demodulation processing and the like to convert the audio data into audio data, and DA (Digital Analog) converts the audio data to the amplifier 4. Output. The amplifier 4 amplifies the audio signal of the RDS station selected by the user and outputs it to the speaker 5. The speaker 5 reproduces the audio signal amplified by the amplifier 4.

The RDS sub-tuner 2 seeks within the reception band of the RDS broadcast, repeats the operation of receiving the RDS broadcast of each frequency, and outputs the signal of the RDS broadcast of the received frequency to the audio DSP3. The audio DSP 3 AD-converts the RDS broadcast signal received by the RDS sub-tuner 2 and performs demodulation processing or the like to convert it into RDS data, and outputs the RDS data to the RDS data acquisition unit 12. Further, the audio DSP 3 outputs data indicating reception quality such as the electric field level or noise of each frequency received by the RDS sub-tuner 2 to the receivable station detection unit 11.

The RDS data includes a program service name PS, a program identification code PI, an RDS extended country code ECC, and the like. The program service name PS is information for indicating the broadcasting station name of the RDS station. However, as described above, the program service name PS may include information other than the broadcasting station name, such as a song name, a singer name, or an album name. The program identification code PI is a code for identifying an RDS station. The RDS extended country code ECC is a code given to the country code of the program identification code PI to extend the country code.

The DAB tuner 6 repeats the operation of seeking within the reception band of the DAB broadcast and receiving the DAB broadcast of each frequency, and outputs the signal of the DAB broadcast of the received frequency to the DAB decoder 7. The DAB decoder 7 AD-converts the signal received by the DAB tuner 6 and performs decoding processing or the like to obtain DAB data, and outputs the DAB data to the DAB data acquisition unit 13.

DAB data includes service label SL, service identification code SId, DAB extended country code ECC, and the like. The service label SL is information for indicating the broadcasting station name of the DAB station, and corresponds to the program service name PS of the RDS data. The service identification code SId is a code for identifying the DAB station, and corresponds to the program identification code PI of the RDS data. The DAB extended country code ECC is a code for extending the country code and corresponds to the RDS extended country code ECC.

The input device 8 receives an operation for selecting an RDS station from the user, and outputs information indicating the RDS station selected by the operation (hereinafter, referred to as “channel selection information”) to the control unit 10. The control unit 10 outputs the channel selection information output from the input device 8 to the RDS main tuner 1. The RDS main tuner 1 switches the reception frequency according to the channel selection information output from the control unit 10.

The display device 9 displays the RDS station list generated by the control unit 10. The RDS station list includes broadcast station names of RDS stations that can be received by the radio receiver 100.

The receivable station detection unit 11 acquires data representing the reception quality of each frequency in the RDS sub-tuner 2 from the audio DSP 3. The receivable station detection unit 11 detects an RDS station of a quality that can be received by the RDS main tuner 1 and the RDS sub-tuner 2 (hereinafter, referred to as “receivable station”) using data indicating reception quality. .. The receivable station detection unit 11 outputs the receivable station information to the RDS data acquisition unit 12.

The RDS data acquisition unit 12 acquires the RDS data of the receivable station detected by the receivable station detection unit 11 from the audio DSP 3. The RDS data acquisition unit 12 outputs the RDS data acquired from the audio DSP 3 to the dynamic PS determination unit 14, the match determination unit 15, and the broadcasting station name selection unit 16.

The DAB data acquisition unit 13 acquires the DAB data of the DAB station received by the DAB tuner 6 from the DAB decoder 7 and outputs it to the match determination unit 15 and the broadcasting station name selection unit 16.

The dynamic PS determination unit 14 uses the program service name PS included in the RDS data acquired by the RDS data acquisition unit 12 to determine whether or not the receivable station detected by the receivable station detection unit 11 is a dynamic PS station. judge. As described above, the dynamic PS station is an RDS station that violates the RDS standard and transmits information other than the broadcasting station name such as a song name, a singer name, or an album name as a program service name PS. The dynamic PS determination unit 14 determines whether the plurality of program service name PS included in the plurality of RDS data received by the RDS sub-tuner 2 a predetermined number of times (for example, twice) is the same for the receivable station to be determined. Judge whether or not. Then, the dynamic PS determination unit 14 determines that the receivable station to be determined is not the dynamic PS station when the plurality of program service name PSs are the same, and when the plurality of program service name PSs are not the same, the said It is determined that the receivable station to be determined is a dynamic PS station. The dynamic PS determination unit 14 outputs the determination result to the match determination unit 15 and the broadcasting station name selection unit 16.
The dynamic PS determination unit 14 determines whether or not the station is a dynamic PS station by using a plurality of program service name PSs included in a plurality of RDS data received by the RDS sub-tuner 2 during a predetermined period. You may.

For the RDS station determined by the dynamic PS determination unit 14 to be a dynamic PS station, the match determination unit 15 determines whether the RDS data acquired by the RDS data acquisition unit 12 and the DAB data acquired by the DAB data acquisition unit 13 match. Judge whether or not. Specifically, the match determination unit 15 determines whether or not the DAB data including the service identification code SId matching the program identification code PI included in the RDS data of the dynamic PS station has been acquired by the DAB data acquisition unit 13. To do. When the match determination unit 15 determines that there is DAB data including the service identification code SId that matches the program identification code PI included in the RDS data of the dynamic PS station, the program service name PS included in the RDS data and the said It is determined whether or not the service label SL included in the DAB data matches. Further, when the match determination unit 15 has DAB data including the service identification code SId that matches the program identification code PI included in the RDS data of the dynamic PS station, the RDS extended country code ECC included in the RDS data and the said Determine if the DAB extended country code ECC included in the DAB data matches. The match determination unit 15 outputs the determination result to the broadcasting station name selection unit 16.

The broadcasting station name selection unit 16 selects the program service name PS included in the RDS data of the RDS station as the broadcasting station name for the RDS station determined by the dynamic PS determination unit 14 to be not a dynamic PS station.
On the other hand, the broadcasting station name selection unit 16 selects the broadcasting station name of the RDS station determined by the dynamic PS determination unit 14 to be a dynamic PS station as follows.

When the match determination unit 15 determines that there is DAB data including the service identification code SId that matches the program identification code PI included in the RDS data of the dynamic PS station, the broadcasting station name selection unit 16 determines that the dynamic PS station It is determined that there is a DAB station corresponding to, and the broadcasting station name is selected using the DAB data. Specifically, for the dynamic PS station to be selected, when the match determination unit 15 determines that the program service name PS of the RDS data and the service label SL of the DAB data match, or the RDS extended country of the RDS data. When it is determined that the code ECC and the DAB extended country code ECC of the DAB data match, the broadcasting station name selection unit 16 selects the service label SL of the DAB service as the broadcasting station name.

On the other hand, for the dynamic PS station to be selected, when the match determination unit 15 determines that the program service name PS of the RDS data and the service label SL of the DAB data do not match, and the RDS extended country code ECC of the RDS data When it is determined that the DAB data and the DAB extended country code ECC of the DAB data do not match, the broadcasting station name selection unit 16 selects the service label SL of the DAB service as a temporary broadcasting station name. After that, when the RDS subtuner 2 receives the RDS data of the dynamic PS station a predetermined number of times (for example, 5 times), the broadcasting station name selection unit 16 includes a plurality of RDS data included in the plurality of RDS data. Among the program service name PS of the above, the program service name PS that appears most frequently is selected as the official broadcasting station name.
The broadcasting station name selection unit 16 uses a plurality of program service name PS included in a plurality of RDS data received by the RDS sub-tuner 2 during a predetermined period, and uses the program service name PS having the highest number of appearances. May be selected as the official broadcasting station name.

When the match determination unit 15 determines that there is no DAB data including the service identification code SId that matches the program identification code PI of the dynamic PS station, the broadcasting station name selection unit 16 determines that the DAB station corresponding to the dynamic PS station. It is determined that there is no broadcasting station name, and the broadcasting station name is selected using only the RDS data. Specifically, the broadcasting station name selection unit 16 receives the RDS data a predetermined number of times (for example, 5 times) for the dynamic PS station to be selected, and these plurality of RDSs. Among the plurality of program service name PS included in the data, the program service name PS that appears most frequently is selected as the broadcasting station name.
The broadcasting station name selection unit 16 uses a plurality of program service name PS included in a plurality of RDS data received by the RDS sub-tuner 2 during a predetermined period, and uses the program service name PS having the highest number of appearances. May be selected as the broadcasting station name.

The broadcasting station name selection unit 16 stores the broadcasting station name selected by the above method in the broadcasting station name storage unit 17. The control unit 10 creates an RDS station list using the broadcasting station name stored in the broadcasting station name storage unit 17, and outputs the RDS station list to the display device 9. The RDS station list may be a list of broadcasting station names of each RDS station detected by the receivable station detection unit 11, or may be a list of broadcasting station names and frequencies of each RDS station.

FIG. 2 is a flowchart showing an operation example of the radio receiving device 100 according to the first embodiment. The radio receiver 100 performs the operation shown in the flowchart of FIG. 2 while the power is being supplied. Although not shown, the RDS data acquisition unit 12 and the DAB data acquisition unit 13 input the RDS data of the RDS station and the DAB data of the DAB station within the reception band while the power is being supplied to the radio receiving device 100. It is assumed that it is acquired on a regular basis.

In step ST1, the receivable station detection unit 11 detects the receivable station using the data representing the reception quality acquired from the audio DSP3.
FIG. 3 is a diagram illustrating an example of an RDS station according to the first embodiment. In the example of FIG. 3, when the reception band of the RDS broadcast is 108.0 MHs to 107.5 MHz, the RDS sub-tuner 2 repeatedly receives signals of each frequency within this reception band. Then, the receivable station detection unit 11 detects 107.9 MHz and 107.6 MHz as receivable stations by using the data indicating the reception quality. Note that FIG. 3 shows the program identification code PI, the program service name PS, and the RDS extended country code ECC, which are RDS data of the receivable station.

When the RDS data acquisition unit 12 acquires the program service name PS for a predetermined number of times (for example, two times) for a receivable station of 107.9 MHz, the dynamic PS determination unit 14 determines whether the receivable station is a dynamic PS station or not. (Step ST2).

In the example of FIG. 3, for a receivable station of 107.9 MHz, the program service names PS for two times are "FMAAA" and "FMAAA", which are the same. Therefore, the dynamic PS determination unit 14 determines that the 107.9 MHz receivable station is not a dynamic PS station. On the other hand, for the receivable station of 107.6 MHz, the program service names PS for two times are "FMBBB" and "CCCCC", which are not the same. Therefore, the dynamic PS determination unit 14 determines that the receivable station of 107.6 MHz is a dynamic PS station.

When the dynamic PS determination unit 14 determines that the receivable station is not a dynamic PS station (step ST3 “NO”), the broadcasting station name selection unit 16 determines the program service name PS included in the RDS data of the receivable station. , Select as the broadcasting station name of the receivable station (step ST5). Then, the broadcasting station name selection unit 16 stores the selected broadcasting station name in the broadcasting station name storage unit 17 (step ST6). In the example of FIG. 3, "FMAAA", which is the program service name PS, is selected as the broadcasting station name of the receivable station of 107.9 MHz.

When the dynamic PS determination unit 14 determines that the receivable station is a dynamic PS station (step ST3 “YES”), the broadcasting station name selection unit 16 is concerned for selecting the broadcasting station name in step ST11, which will be described later. Acquire the program service name PS included in the RDS data of the dynamic PS station (step ST4). Subsequently, the match determination unit 15 determines whether or not there is DAB data including the service identification code SId that matches the program identification code PI included in the RDS data of the dynamic PS station (step ST7). When the match determination unit 15 has DAB data including the service identification code SId that matches the program identification code PI included in the RDS data of the dynamic PS station (step ST7 “YES”), the match determination unit 15 determines the RDS data of the dynamic PS station. It is determined whether or not the included program service name PS and the RDS extended country code ECC match the service label SL and the DAB extended country code ECC included in the DAB data, respectively (step ST8). When the match determination unit 15 determines that the program service name PS and the service label SL match, or when it determines that the RDS extended country code ECC and the DAB extended country code ECC match (step ST8 “YES””. ), The broadcasting station name selection unit 16 selects the service label SL included in the DAB data as the broadcasting station name of the dynamic PS station (step ST9). Then, the broadcasting station name selection unit 16 stores the selected broadcasting station name in the broadcasting station name storage unit 17 (step ST10).

FIG. 4 is a diagram showing a list example of DAB data acquired by the DAB data acquisition unit 13 of the first embodiment. In the example of FIG. 4, the DAB data acquisition unit 13 has already acquired the DAB data of the 222.064 MHz DAB station. This DAB data includes service identification code SId "C222", service label SL "FMBBB", and DAB extended country code ECC "17". In this example, the program identification code PI “C222” included in the RDS data of the 107.6 MHz dynamic PS station matches the service identification code SId “C222” included in the DAB data of the 222.064 MHz DAB station. Further, the RDS extended country code ECC "17" included in the RDS data of the 107.6 MHz dynamic PS station matches the DAB extended country code ECC "17" included in the DAB data of the 222.064 MHz DAB station. Therefore, the service label SL "FMBBB" is selected as the broadcasting station name of the 107.6 MHz dynamic PS station.

If the match determination unit 15 determines that there is no DAB data including the service identification code SId that matches the program identification code PI included in the RDS data of the dynamic PS station (step ST7 “NO”), the process is step ST11. Proceed to. In step ST11, when the broadcasting station name selection unit 16 acquires the program service name PS for a predetermined number of times (for example, 5 times) for the 107.6 MHz dynamic PS station (step ST11 “YES”), the number of appearances is the highest. A large number of program service names PS are selected as broadcasting station names of the dynamic PS station (step ST12). Then, the broadcasting station name selection unit 16 stores the selected broadcasting station name in the broadcasting station name storage unit 17 (step ST13).
On the other hand, when the broadcasting station name selection unit 16 has not completed the acquisition of the program service name PS for a predetermined number of times (for example, 5 times) for the 107.6 MHz dynamic PS station (step ST11 “NO”), the processing is performed. Returns to step ST4.

Further, in the match determination unit 15, the program service name PS included in the RDS data of the dynamic PS station and the service label SL included in the DAB data do not match, and the RDS extended country code ECC and the DAB extended country code ECC are used. If it is determined that they do not match (step ST8 “NO”), the process proceeds to step ST14. In step ST14, the broadcasting station name selection unit 16 uses the service label SL included in the DAB data as the temporary broadcasting station name of the dynamic PS station, instead of the program service name PS which may be a song name or a singer name. (Step ST14). Then, the broadcasting station name selection unit 16 stores the selected temporary broadcasting station name in the broadcasting station name storage unit 17 (step ST15).
However, since the program service name PS and the service label SL do not match, and the RDS extended country code ECC and the DAB extended country code ECC also do not match, misrecognition between the dynamic PS station and the DAB station has occurred. there is a possibility. Therefore, in the subsequent steps ST11 to ST13, the broadcasting station name selection unit 16 officially selects the program service name PS having the highest number of appearances as the broadcasting station name of the dynamic PS station, and the broadcasting station name storage unit 17 is used. Remember.

FIG. 5 is a diagram showing an example of an RDS station list displayed by the display device 9 of the first embodiment. In this RDS station list, the broadcasting station name "FMAAA" of a receivable station that is not a dynamic PS station of 107.9 MHz and the broadcasting station name "FMBBB" of a receivable station that is a dynamic PS station of 107.6 MHz are included. included.

As described above, the radio receiving device 100 according to the first embodiment includes the RDS sub-tuner 2, the DAB tuner 6, the RDS data acquisition unit 12, the DAB data acquisition unit 13, and the receivable station detection unit 11. A dynamic PS determination unit 14, a match determination unit 15, and a broadcasting station name selection unit 16 are provided. The RDS sub-tuner 2 receives the RDS broadcast. The DAB tuner 6 receives the DAB broadcast. The RDS data acquisition unit 12 acquires the program identification code PI and the program service name PS from the RDS broadcast received by the RDS sub-tuner 2. The DAB data acquisition unit 13 acquires the service identification code SId and the service label SL from the DAB broadcast received by the DAB tuner 6. The receivable station detection unit 11 detects an RDS station of a quality that can be received by the RDS sub-tuner 2. The dynamic PS determination unit 14 determines whether or not the receivable station detected by the receivable station detection unit 11 is a dynamic PS station. The match determination unit 15 is a service of the dynamic PS station in which the program identification code PI and the program service name PS of the dynamic PS station acquired by the RDS data acquisition unit 12 are acquired by the DAB data acquisition unit 13, respectively. It is determined whether or not the identification code SId and the service label SL match. When the match determination unit 15 determines that the program identification code PI and the service identification code SId of the dynamic PS station match and the program service name PS and the service label SL match, the broadcasting station name selection unit 16 provides the service. Select the label SL as the broadcasting station name of the dynamic PS station. In this way, the radio receiving device 100 confirms the match between the program identification code PI and the service identification code SId and the match between the program service name PS and the service label SL, so that the broadcasting station name of the dynamic PS station is correctly set. Can be selected.

Further, when the match determination unit 15 determines that there is no service identification code SId that matches the program identification code PI of the dynamic PS station, the broadcast station name selection unit 16 of the first embodiment is pluralized by the RDS data acquisition unit 12. The program service name PS having the highest number of appearances is selected as the broadcasting station name of the dynamic PS station from the plurality of program service name PS acquired times. As a result, the radio receiving device 100 can correctly select the broadcasting station name even if it is a dynamic PS station in which the DAB station does not exist.

Further, the match determination unit 15 of the first embodiment has the program identification code PI and the service identification code of the dynamic PS station until the RDS data acquisition unit 12 finishes acquiring the program service name PS of the dynamic PS station a plurality of times. It is periodically determined whether or not the SId matches (step ST7). Even if the radio receiving device 100 mounted on the vehicle or the like cannot acquire the DAB data at first, there is a possibility that the DAB data can be acquired after that with the passage of time or with the movement of the vehicle or the like. In that case, the radio receiving device 100 can select the broadcasting station name of the dynamic PS station before the program service name PS of the dynamic PS station is acquired a plurality of times.

Further, the RDS data acquisition unit 12 of the first embodiment acquires the RDS extended country code ECC from the RDS broadcast received by the RDS sub-tuner 2. The DAB data acquisition unit 13 acquires the DAB extended country code ECC from the DAB broadcast received by the DAB tuner 6. The match determination unit 15 matches the RDS extended country code ECC of the dynamic PS station acquired by the RDS data acquisition unit 12 with the DAB extended country code ECC of the dynamic PS station acquired by the DAB data acquisition unit 13. Determine whether or not to do so. In the broadcasting station name selection unit 16, the match determination unit 15 matches the program identification code PI and the service identification code SId of the dynamic PS station, and the program service name PS and the service label SL or RDS extended country code ECC and DAB. If it is determined that at least one of the extended country codes ECC matches, the service label SL is selected as the broadcasting station name of the dynamic PS station. As described above, in the radio receiving device 100, in addition to the matching of the program identification code PI and the service identification code SId, the matching of the program service name PS and the service label SL, and the RDS extended country code ECC and the DAB extended country code ECC are used. Since the match is confirmed, it is possible to prevent erroneous recognition between the dynamic PS station and the DAB station. Therefore, the broadcasting station name of the dynamic PS station can be selected more correctly.
Also in this configuration, the match determination unit 15 has the program identification code PI and the service identification code SId of the dynamic PS station until the RDS data acquisition unit 12 finishes acquiring the program service name PS of the dynamic PS station a plurality of times. By periodically performing the determination of whether or not they match (step ST7), the radio receiving device 100 obtains the broadcasting station name of the dynamic PS station before completing the acquisition of the program service name PS of the dynamic PS station a plurality of times. There is a possibility that it can be selected.

Further, in the broadcasting station name selection unit 16 of the first embodiment, the program identification code PI and the service identification code SId of the dynamic PS station match by the match determination unit 15, but the program service name PS and the service label SL match. If it is determined that the RDS extended country code ECC and the DAB extended country code ECC do not match, the service label SL is selected as a temporary broadcasting station name of the dynamic PS station. After that, the broadcasting station name selection unit 16 selects the program service name PS having the highest number of appearances from the plurality of program service name PS acquired multiple times by the RDS data acquisition unit 12 as the official broadcasting station of the dynamic PS station. Select as a name. As described above, in the radio receiving device 100, in addition to the matching of the program identification code PI and the service identification code SId, the matching of the program service name PS and the service label SL, and the RDS extended country code ECC and the DAB extended country code ECC are used. Since the match is confirmed, it is possible to prevent erroneous recognition between the dynamic PS station and the DAB station. Therefore, the broadcasting station name of the dynamic PS station can be selected more correctly. Further, when the program service name PS and the service label SL do not match and the RDS extended country code ECC and the DAB extended country code ECC do not match, the radio receiver 100 does not match the program service name PS but the service label SL. Is selected as a temporary broadcasting station name, so that it is possible to suppress erroneous selection of the broadcasting station name.

Embodiment 2.
FIG. 6 is a block diagram showing a configuration example of the radio receiving device 100 according to the second embodiment. The radio receiving device 100 according to the second embodiment has a configuration in which the broadcasting station name selection unit 16a is provided in place of the broadcasting station name selection unit 16 of the first embodiment shown in FIG. In FIG. 6, the same or corresponding parts as those in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted.

FIG. 7 is a flowchart showing an operation example of the radio receiving device 100 according to the second embodiment. The operation of steps ST1 to ST15 in FIG. 7 is the same as the operation of steps ST1 to ST15 in FIG.
In step ST21, in the broadcasting station name selection unit 16a, the broadcasting station name matching the program service name PS included in the RDS data of the dynamic PS station acquired once by the RDS data acquisition unit 12 is stored in the broadcasting station name storage unit 17. Determine if it is stored. When the broadcasting station name matching the program service name PS included in the RDS data of the dynamic PS station is stored in the broadcasting station name storage unit 17 (step ST21 “YES”), the broadcasting station name selection unit 16a is set to the program. The service name PS is selected as the broadcasting station name of the dynamic PS station (step ST5). On the other hand, when the broadcasting station name matching the program service name PS included in the RDS data of the dynamic PS station is not stored in the broadcasting station name storage unit 17 (step ST21 “NO”), the process proceeds to step ST2.

For example, assume that the broadcasting station name storage unit 17 stores the broadcasting station name shown in FIG. In this case, if the program service name PS included in the RDS data of the 107.6 MHz dynamic PS station is "FMBBB", the broadcasting station name matching this "FMBBB" is stored in the broadcasting station name storage unit 17. Therefore, the program service name PS "FMBBB" is selected as the broadcasting station name of the 107.6 MHz dynamic PS station.

As described above, the radio receiving device 100 according to the second embodiment includes a broadcasting station name storage unit 17 that stores the broadcasting station name selected by the broadcasting station name selection unit 16a. Then, when the broadcasting station name corresponding to the program service name PS of the dynamic PS station acquired by the RDS data acquisition unit 12 is stored in the broadcasting station name storage unit 17, the broadcasting station name selection unit 16a is concerned with the program. Select the service name PS as the broadcasting station name of the dynamic PS station. Since the broadcast station name stored in the broadcast station name storage unit 17 has high reliability, the radio receiver 100 immediately selects the broadcast station name without performing the operations of steps ST2 to ST4 and steps ST7 to ST15. Can be done.

In the first and second embodiments, the RDS sub-tuner 2 repeats the operation of seeking within the reception band including the frequency being received by the RDS main tuner 1 and receiving the RDS broadcast of each frequency. , Not limited to this behavior.
For example, the RDS sub-tuner 2 seeks within the reception band excluding the frequency being received by the RDS main tuner 1, and receives the RDS broadcast of each frequency excluding the frequency being received by the RDS main tuner 1. You may repeat the operation to do. In this case, the audio DSP 3 outputs the RDS data of the frequency received by the main tuner 1 for RDS and the data representing the reception quality to the control unit 10. Further, the audio DSP 3 outputs the RDS data of each frequency received by the RDS sub-tuner 2 and the data representing the reception quality to the control unit 10. Therefore, the RDS data acquisition unit 12 acquires the RDS data of the RDS station selected by the user from the RDS broadcast received by the main tuner 1 for RDS, and the RDS station other than the RDS station selected by the user. The RDS data will be acquired from the RDS broadcast received by the RDS subtuner 2. In the case of this configuration, since the frequency to be received by the RDS sub-tuner 2 is reduced, the seek time in the reception band by the RDS sub-tuner 2 can be shortened. As a result, the broadcasting station name selection units 16 and 16a can select the broadcasting station name in a shorter time.

Finally, the hardware configuration of the control unit 10 in the radio receiving device 100 according to each embodiment will be described.
FIG. 8 is a diagram showing a hardware configuration example of the control unit 10 in the radio receiving device 100 according to each embodiment. The functions of the receivable station detection unit 11, the RDS data acquisition unit 12, the DAB data acquisition unit 13, the dynamic PS determination unit 14, the match determination unit 15, and the broadcasting station name selection units 16 and 16a in the control unit 10 are stored in the memory 102. It is realized by the processor 101 that executes the stored program. Further, the broadcasting station name storage unit 17 in the control unit 10 is a memory 102.

The functions of the receivable station detection unit 11, the RDS data acquisition unit 12, the DAB data acquisition unit 13, the dynamic PS determination unit 14, the match determination unit 15, and the broadcasting station name selection units 16 and 16a are software, firmware, or software. It is realized by combining with firmware. The software or firmware is described as a program and stored in the memory 102. The processor 101 realizes the functions of each part by reading and executing the program stored in the memory 102. That is, the control unit 10 includes a memory 102 for storing a program in which the steps shown in the flowcharts of FIGS. 2 and 7 are eventually executed when executed by the processor 101. In addition, this program describes the procedures or methods of the receivable station detection unit 11, the RDS data acquisition unit 12, the DAB data acquisition unit 13, the dynamic PS determination unit 14, the match determination unit 15, and the broadcasting station name selection units 16, 16a. It can also be said that it is executed by a computer.

Here, the processor 101 is a CPU (Central Processing Unit), a processing device, an arithmetic unit, a microprocessor, or the like.
The memory 102 may be a non-volatile or volatile semiconductor memory such as a RAM (Random Access Memory), a ROM (Read Only Memory), an EPROM (Erasable Program ROM), or a flash memory, and may be a non-volatile or volatile semiconductor memory such as a hard disk or a flexible disk. It may be an optical disc such as a CD (Compact Disc) or a DVD (Digital Versaille Disc).

It should be noted that, within the scope of the present invention, it is possible to freely combine each embodiment, modify any component of each embodiment, or omit any component of each embodiment.

Since the radio receiver according to the present invention correctly selects the broadcast station name of the dynamic PS station, it is suitable for use in a radio receiver or the like mounted on a vehicle or the like that may move near the border. There is.

1 Main tuner for RDS, 2 Sub-tuner for RDS, 3 Audio DSP, 4 amplifier, 5 speaker, 6 DAB tuner, 7 DAB decoder, 8 input device, 9 display device, 10 control unit, 11 receivable station detector, 12 RDS data acquisition unit, 13 DAB data acquisition unit, 14 dynamic PS judgment unit, 15 match judgment unit, 16, 16a broadcast station name selection unit, 17 broadcast station name storage unit, 100 radio receiver, 101 processor, 102 memory.

Claims (10)

An RDS tuner that receives RDS broadcasts,
A tuner for DAB that receives DAB broadcasts,
An RDS data acquisition unit that acquires a program identification code and a program service name from the RDS broadcast received by the RDS tuner, and an RDS data acquisition unit.
A DAB data acquisition unit that acquires a service identification code and a service label from a DAB broadcast received by the DAB tuner, and a DAB data acquisition unit.
A receivable station detector that detects RDS stations of receivable quality with the RDS tuner,
A dynamic PS determination unit that determines whether or not the RDS station detected by the receivable station detection unit is a dynamic PS station that transmits information other than the broadcasting station name as the program service name.
The program identification code and program service name of the dynamic PS station acquired by the RDS data acquisition unit match the service identification code and service label of the dynamic PS station acquired by the DAB data acquisition unit, respectively. A match judgment unit that determines whether or not it is
When the match determination unit determines that the program identification code and the service identification code of the dynamic PS station match and the program service name and the service label match, the service label is used as the broadcasting station name of the dynamic PS station. Equipped with a broadcasting station name selection department to be selected
When the match determination unit determines that there is no service identification code that matches the program identification code of the dynamic PS station, the broadcasting station name selection unit obtains a plurality of program services a plurality of times by the RDS data acquisition unit. more program service name the most number of occurrences from the name, characteristics and be Lula Geo receiving apparatus that selects a broadcasting station name of the dynamic PS station. An RDS tuner that receives RDS broadcasts,
A tuner for DAB that receives DAB broadcasts,
An RDS data acquisition unit that acquires a program identification code and a program service name from the RDS broadcast received by the RDS tuner, and an RDS data acquisition unit.
A DAB data acquisition unit that acquires a service identification code and a service label from a DAB broadcast received by the DAB tuner, and a DAB data acquisition unit.
A receivable station detector that detects RDS stations of receivable quality with the RDS tuner,
A dynamic PS determination unit that determines whether or not the RDS station detected by the receivable station detection unit is a dynamic PS station that transmits information other than the broadcasting station name as the program service name.
The program identification code and program service name of the dynamic PS station acquired by the RDS data acquisition unit match the service identification code and service label of the dynamic PS station acquired by the DAB data acquisition unit, respectively. A match judgment unit that determines whether or not it is
When the match determination unit determines that the program identification code and the service identification code of the dynamic PS station match and the program service name and the service label match, the service label is used as the broadcasting station name of the dynamic PS station. Equipped with a broadcasting station name selection department to be selected
The RDS data acquisition unit acquires the RDS extended country code from the RDS broadcast received by the RDS tuner, and obtains the RDS extended country code.
The DAB data acquisition unit acquires the DAB extended country code from the DAB broadcast received by the DAB tuner, and obtains the DAB extended country code.
In the match determination unit, the RDS extended country code of the dynamic PS station acquired by the RDS data acquisition unit and the DAB extended country code of the dynamic PS station acquired by the DAB data acquisition unit match. Judge whether or not
In the broadcasting station name selection unit, the program identification code and the service identification code of the dynamic PS station are matched by the match determination unit, and at least the program service name and the service label or the RDS extended country code and the DAB extended country code are used. one is a case where it is determined to match, features and be Lula Geo receiving apparatus to select the service label as a broadcast station name of the dynamic PS station. An RDS tuner that receives RDS broadcasts,
A tuner for DAB that receives DAB broadcasts,
An RDS data acquisition unit that acquires a program identification code and a program service name from the RDS broadcast received by the RDS tuner, and an RDS data acquisition unit.
A DAB data acquisition unit that acquires a service identification code and a service label from a DAB broadcast received by the DAB tuner, and a DAB data acquisition unit.
A receivable station detector that detects RDS stations of receivable quality with the RDS tuner,
A dynamic PS determination unit that determines whether or not the RDS station detected by the receivable station detection unit is a dynamic PS station that transmits information other than the broadcasting station name as the program service name.
The program identification code and program service name of the dynamic PS station acquired by the RDS data acquisition unit match the service identification code and service label of the dynamic PS station acquired by the DAB data acquisition unit, respectively. A match judgment unit that determines whether or not it is
When the match determination unit determines that the program identification code and the service identification code of the dynamic PS station match and the program service name and the service label match, the service label is used as the broadcasting station name of the dynamic PS station. Broadcasting station name selection department to be selected and
Equipped with a main tuner for RDS that receives RDS broadcasts of RDS stations selected by the user.
The RDS tuner receives the RDS broadcast of an RDS station other than the RDS station selected by the user, and receives the RDS broadcast.
The RDS data acquisition unit acquires the program identification code and the program service name of the RDS station selected by the user from the RDS broadcast received by the main tuner for RDS, and receives the program by the tuner for RDS. from the RDS broadcast, the user characteristics and to Lula Geo receiving apparatus that acquires program identification codes and program service name of the RDS station other than the RDS station which is tuned by. The match determination unit determines whether or not the program identification code of the dynamic PS station and the service identification code match during the period until the RDS data acquisition unit finishes acquiring the program service name of the dynamic PS station a plurality of times. determining radio receiving apparatus according to claim 1, wherein to regularly. In the broadcasting station name selection unit, the program identification code and the service identification code of the dynamic PS station match by the match determination unit, but the program service name and the service label do not match, and the RDS extended country code and the DAB extension If it is determined that the country code does not match, the service label is selected as a temporary broadcasting station name of the dynamic PS station, and then, of a plurality of program service names acquired multiple times by the RDS data acquisition unit. The radio receiving device according to claim 2 , wherein the program service name having the highest number of appearances is selected as the official broadcasting station name of the dynamic PS station. The match determination unit determines whether or not the program identification code of the dynamic PS station and the service identification code match during the period until the RDS data acquisition unit finishes acquiring the program service name of the dynamic PS station a plurality of times. The radio receiver according to claim 5, wherein the determination is performed periodically. It is equipped with a broadcasting station name storage unit that stores the broadcasting station name selected by the broadcasting station name selection unit.
When the broadcasting station name corresponding to the program service name of the dynamic PS station acquired by the RDS data acquisition unit is stored in the broadcasting station name storage unit, the broadcasting station name selection unit has the program service name. The radio receiving device according to any one of claims 1 to 3 , wherein is selected as the broadcasting station name of the dynamic PS station. A radio reception method for a radio receiver including a tuner for RDS that receives RDS broadcasts and a tuner for DAB that receives DAB broadcasts.
The RDS data acquisition unit acquires the program identification code and the program service name from the RDS broadcast received by the RDS tuner, and obtains the program identification code and the program service name.
The DAB data acquisition unit acquires the service identification code and the service label from the DAB broadcast received by the DAB tuner, and obtains the service identification code and the service label.
The receivable station detection unit detects an RDS station of quality that can be received by the RDS tuner, and
The dynamic PS determination unit determines whether or not the RDS station detected by the receivable station detection unit is a dynamic PS station transmitting information other than the broadcasting station name as the program service name.
The program identification code and the program service name of the dynamic PS station acquired by the RDS data acquisition unit in the match determination unit are the service identification code and the service identification code of the dynamic PS station acquired by the DAB data acquisition unit, respectively. Determine if it matches the service label and
When the broadcasting station name selection unit determines that the program identification code and the service identification code of the dynamic PS station match and the program service name and the service label match by the matching determination unit, the service label is set to the dynamic. Selected as the broadcasting station name of the PS station,
When the match determination unit determines that there is no service identification code that matches the program identification code of the dynamic PS station, the broadcasting station name selection unit obtains a plurality of program services a plurality of times by the RDS data acquisition unit. The program service name that appears most frequently is selected as the broadcasting station name of the dynamic PS station.
A radio reception method characterized by that. A radio reception method for a radio receiver including a tuner for RDS that receives RDS broadcasts and a tuner for DAB that receives DAB broadcasts.
The RDS data acquisition unit acquires the program identification code and the program service name from the RDS broadcast received by the RDS tuner, and obtains the program identification code and the program service name.
The DAB data acquisition unit acquires the service identification code and the service label from the DAB broadcast received by the DAB tuner, and obtains the service identification code and the service label.
The receivable station detection unit detects an RDS station of quality that can be received by the RDS tuner, and
The dynamic PS determination unit determines whether or not the RDS station detected by the receivable station detection unit is a dynamic PS station transmitting information other than the broadcasting station name as the program service name.
The program identification code and the program service name of the dynamic PS station acquired by the RDS data acquisition unit in the match determination unit are the service identification code and the service identification code of the dynamic PS station acquired by the DAB data acquisition unit, respectively. Determine if it matches the service label and
When the broadcasting station name selection unit determines that the program identification code and the service identification code of the dynamic PS station match and the program service name and the service label match by the matching determination unit, the service label is set to the dynamic. Selected as the broadcasting station name of the PS station,
The RDS data acquisition unit acquires the RDS extended country code from the RDS broadcast received by the RDS tuner, and obtains the RDS extended country code.
The DAB data acquisition unit acquires the DAB extended country code from the DAB broadcast received by the DAB tuner, and obtains the DAB extended country code.
In the match determination unit, the RDS extended country code of the dynamic PS station acquired by the RDS data acquisition unit and the DAB extended country code of the dynamic PS station acquired by the DAB data acquisition unit match. Judge whether or not
In the broadcasting station name selection unit, the program identification code and the service identification code of the dynamic PS station are matched by the match determination unit, and at least the program service name and the service label or the RDS extended country code and the DAB extended country code are used. If it is determined that one of them matches, the service label is selected as the broadcasting station name of the dynamic PS station.
A radio reception method characterized by that. A radio reception method for a radio receiver including a tuner for RDS that receives RDS broadcasts and a tuner for DAB that receives DAB broadcasts.
The RDS data acquisition unit acquires the program identification code and the program service name from the RDS broadcast received by the RDS tuner, and obtains the program identification code and the program service name.
The DAB data acquisition unit acquires the service identification code and the service label from the DAB broadcast received by the DAB tuner, and obtains the service identification code and the service label.
The receivable station detection unit detects an RDS station of quality that can be received by the RDS tuner, and
The dynamic PS determination unit determines whether or not the RDS station detected by the receivable station detection unit is a dynamic PS station transmitting information other than the broadcasting station name as the program service name.
The program identification code and the program service name of the dynamic PS station acquired by the RDS data acquisition unit in the match determination unit are the service identification code and the service identification code of the dynamic PS station acquired by the DAB data acquisition unit, respectively. Determine if it matches the service label and
When the broadcasting station name selection unit determines that the program identification code and the service identification code of the dynamic PS station match and the program service name and the service label match by the matching determination unit, the service label is set to the dynamic. Selected as the broadcasting station name of the PS station,
The main tuner for RDS receives the RDS broadcast of the RDS station selected by the user,
The RDS tuner receives the RDS broadcast of an RDS station other than the RDS station selected by the user, and receives the RDS broadcast.
The RDS data acquisition unit acquires the program identification code and the program service name of the RDS station selected by the user from the RDS broadcast received by the main tuner for RDS, and receives the program by the tuner for RDS. Obtain the program identification code and program service name of an RDS station other than the RDS station selected by the user from the RDS broadcast.
A radio reception method characterized by that.

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