JP6754307B2 - Radio broadcast receiver - Google Patents

Description

The present invention relates to a technique for switching a received broadcast from a broadcast being received to another broadcast having the same content as the broadcast in the radio broadcast receiving device.

In the radio broadcast receiver, as a technology for switching the received broadcast between broadcasts related to simul broadcast in which the same content is broadcast, in the radio broadcast receiver that receives DAB (Digital Audio Broadcasting) and FM broadcast, A technique is known in which when the reception quality of a DAB service being received deteriorates, the reception target is switched to an FM broadcasting station having a relationship between the DAB service and the simul broadcasting (for example, Patent Document 1).

In addition, a service (for example, non-delivery) of delivering visual contents such as texts and images preliminarily associated with a broadcast specified by the radio broadcast receiver to the radio broadcast receiver via the Internet. Patent Documents 1-3) are also known.

Japanese Unexamined Patent Publication No. 2013-120967

ETSI, "ETSI TS 103 270 V1.2.1 (2015-09) RadioDNS Hybrid Radio; Hybrid lookup for radio services", [online], [Search January 20, 2017], Internet <URL: http: // www .etsi.org/deliver/etsi_ts%5C103200_103299%5C103270%5C01.02.01_60%5Cts_103270v010201p.pdf ＞ ETSI, "ETSI TS 101 499 V3.1.1 (2015-01) Hybrid Digital Radio (DAB, DRM, RadioDNS); SlideShow; User Application Specification", [online], [Search January 20, 2017], Internet < URL: http://www.etsi.org/deliver/etsi_ts/101400_101499/101499/03.01.01_60/ts_101499v030101p.pdf> ETSI, "ETSI TS 102 818 V3.1.1 (2015-01) Hybrid Digital Radio (DAB, DRM, RadioDNS); XML Specification for Service and Program Information (SPI)", [online], [January 20, 2017 Search], Internet <URL: http://www.etsi.org/deliver/etsi_ts/101400_101499/101499/03.01.01_60/ts_101499v030101p.pdf>

When the radio broadcast receiving device acquires and displays the visual content related to the broadcast being received by using the above-mentioned service, the radio broadcast receiving device receives the broadcast that is not associated with the visual content on the service side. During the period, visual content cannot be acquired and displayed.

Therefore, for example, when switching the broadcast received between the DAB service and the FM broadcast station that has a simul broadcasting relationship with the DAB service as described above, the service side provides visual content to the DAB service. Is associated with, and when the visual content is not associated with the FM broadcast station, the visual content that could be acquired and displayed while receiving the DAB service is being received by the FM broadcast station after switching. Even though the broadcast content of the FM broadcast station is the same as the broadcast content of the DAB service before switching, it cannot be displayed.

Therefore, it is an object of the present invention to display the visual content related to the broadcast being received as much as possible by using the service of distributing the visual content such as texts and images associated with the broadcast via the Internet. And.

In order to achieve the above object, the present invention receives a radio broadcast, receives content from a broadcast service set as a broadcast to be received, and outputs the received content to a radio broadcast receiver that can connect to the Internet. Means and a broadcast service follow-up that switches the reception target broadcast to another broadcasting service having good reception quality that broadcasts the same content as the reception target broadcast when the reception quality of the reception target broadcast deteriorates. The visual of the broadcast service set for the broadcast to be received after the change from the means and the information service that provides the URL of the visual content of each broadcast service via the Internet when the broadcast to be received changes. The visual content display means includes a visual content display means for acquiring the URL of the content, receiving and displaying the distribution of the visual content from the acquired URL, and storing the URL of the acquired visual content, and the reception in the visual content display means. When the target broadcast changes, if the URL of the visual content of the broadcast service set for the received broadcast after the change cannot be obtained from the information service, it is set as the received broadcast after the change. To receive and display the visual content from the URL of the visual content of the other broadcast service saved when the other broadcast service broadcasting the same content as the broadcast service is the reception target broadcast. It is the one that was made.

Here, in such a radio broadcast receiving device, when the reception target broadcast changes in the visual content display means, the visual of the broadcast service set from the information service to the reception target broadcast after the change. When the URL of the content can be acquired, the visual content is delivered and displayed from the acquired URL, and the URL of the acquired visual content is identified as the broadcasting service set for the broadcast to be received after the change. When the broadcast service follow-up means switches the receive target broadcast to another broadcast service with good reception quality that broadcasts the same content as the receive target broadcast, it is received after the switch. The identification of the broadcast service that became the target broadcast is saved in association with the identification of the broadcast service that was the reception target broadcast before the switching, and when the reception target broadcast changes, from the information service after the change. If the URL of the visual content of the broadcast service set for the broadcast to be received cannot be obtained, it is saved in association with the identification of the broadcast service set for the broadcast to be received after the change. It may be configured to receive and display the visual content delivered from the URL of the visual content stored in association with the identification of the broadcasting service of.

Further, in order to achieve the above problems, the present invention provides a radio broadcast receiving device that can connect to the Internet to receive digital radio broadcasts and analog radio broadcasts, and provides a digital radio broadcast broadcast service and an analog radio broadcast broadcast service. A reception output means that receives content from a broadcast service set as a reception target broadcast and outputs the received content, and reception of the reception target broadcast when the reception target broadcast is a digital radio broadcast broadcast service. When the quality deteriorates, the same content as the target broadcast is being broadcast. There is no other digital radio broadcast service with good reception quality, and the same content as the target broadcast is being broadcast. When there is a broadcasting service for analog radio broadcasting with good quality, switching the receiving target broadcasting to the broadcasting service for analog radio broadcasting with good receiving quality that broadcasts the same content as the receiving target broadcasting. Receiving after the change from the broadcasting service follow-up means to be performed and the information service that provides the URL of the visual content of each broadcasting service via the Internet when the receiving target broadcast is changed to the broadcasting service of digital radio broadcasting. A visual content display means that acquires the URL of the visual content of the broadcasting service set for the target broadcast, receives and displays the visual content delivered from the acquired URL, and saves the URL of the acquired visual content. In the visual content display means, when the reception target broadcast changes to an analog radio broadcast broadcasting service, the information service broadcasts the same content as the broadcasting service set for the reception target broadcast after the change. The visual content is distributed and displayed from the URL of the visual content of the digital radio broadcast broadcast service saved when the broadcast service of the digital radio broadcast is the reception target broadcast. ..

Here, in this radio broadcast receiving device, the digital radio broadcast may be DAB (Digital Audio Broadcasting), and the analog radio broadcast may be FM broadcast.
Further, in the above radio broadcast receiving device, the information service may be a service according to the Radio DNS standard.
Further, the above radio broadcast receiving device may be an in-vehicle radio broadcasting receiving device mounted on an automobile.
According to the radio broadcast receiver as described above, if the radio broadcast receiver cannot obtain the URL of the visual content of the broadcast to be received from the information service, the radio broadcast receiver broadcasts the same content as the broadcast to be received. Distribution of visual content from the URL of the visual content of the other broadcast service saved when the service was the target broadcast, that is, the URL of the visual content of another broadcast service that broadcasts the same content as the receive target. Receive and display.

Here, the visual content of another broadcasting service that broadcasts the same content as the reception target broadcast is the visual content related to the reception target broadcast.
Therefore, according to the present invention, it is possible to acquire and display the visual content related to the broadcasting service even during the reception and output of the broadcasting service for which the information service does not provide the URL of the visual content.

As described above, according to the present invention, by using a service that distributes visual contents such as texts and images associated with broadcasting via the Internet, it is possible to obtain visual contents related to the broadcasting being received as much as possible. Can be displayed.

It is a block diagram which shows the structure of the radio broadcasting system which concerns on embodiment of this invention. It is a block diagram which shows the structure of the radio broadcasting receiver which concerns on embodiment of this invention. It is a figure which shows the simulcast management table which concerns on embodiment of this invention. It is a flowchart which shows the DAB follow-up process which concerns on embodiment of this invention. It is a flowchart which shows the FM broadcast follow process which concerns on embodiment of this invention. It is a flowchart which shows the visual content display processing which concerns on embodiment of this invention. It is a flowchart which shows the simulcast registration process which concerns on embodiment of this invention. It is a figure which shows the operation example of the radio broadcasting receiver which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described.
FIG. 1 shows the configuration of the radio broadcasting system according to the present embodiment.
As shown in the figure, the radio broadcast receiving device 1 is a radio broadcasting receiving device 1 mounted on an automobile, and receives DAB (Digital Audio Broadcasting) and FM broadcasting from the broadcasting station 2.
Further, the radio broadcast receiving device 1 has a function of connecting to the Internet 3.
Then, the DAB service and the FM broadcasting station are collectively referred to as "broadcasting service", and visual contents such as texts and images related to the broadcasting service are distributed and distributed on the Internet 3 for each broadcasting service. A provider server 4 that provides information on the visual content URL of the content at a specific URL is arranged. The provider server 4 that distributes the visual content and the provider server 4 that provides the information of the visual content URL may be different servers.
Here, for convenience, the URL indicating the location of the above visual content URL information on the Internet 3 will be referred to as a "link URL" and will be described below.

Further, on the Internet 3, RadioDNS 5 that provides a link URL indicating the location of the information of the visual content URL of the visual content of each broadcasting service is arranged. Here, the visual content of each broadcasting service is, for example, text or an image (broadcasting station logo, artwork of a music being broadcast, etc.) related to the broadcasting service.
Next, FIG. 2 shows the configuration of the radio broadcast receiving device 1.
As shown in the figure, the radio broadcast receiving device 1 receives and receives FM broadcasting from a mobile communication device 111 that performs mobile communication, a DAB tuner 112 that receives DAB from broadcasting station 2 and outputs received audio, and broadcasting station 2. It is equipped with an FM tuner 113 that outputs audio.

Further, the radio broadcast receiving device 1 selects and outputs one of the audio output by the input device 114, the display device 115, the storage device 116, the DAB tuner 112 and the FM tuner 113, and the selector 117 and the audio output by the selector 117. It includes an amplifier 118 that amplifies and outputs, a speaker 119 that is driven by an audio signal output by the amplifier 118 and outputs audio, and a control unit 120 that controls each unit of the above radio broadcast receiving device 1.

Next, FIG. 3 shows a simulcast management table stored in the storage device 116 in the present embodiment.
As shown in the figure, the simulcast management table contains DAB identification information that indicates the identification of DAB services, FM broadcast identification information that indicates the identification of FM broadcast stations, visual content URLs, and entries for registering the update date and time (each line in the figure). Can be provided in plurality.

Here, the DAB identification information and the FM broadcast identification information of the same entry represent the identification of the DAB service and the FM broadcast station that are in a mutual simulcast relationship. Further, the visual content URL is a visual content indicating the location on the Internet (on the provider server 4) of the visual content of the DAB service indicated by the DAB identification information of the same entry or the FM broadcast station indicated by the FM broadcast identification information of the same entry. Represents a URL. The update date and time represents the date and time when the entry was updated.

Here, as the DAB identification information, the country code of the DAB service, the ensemble identifier EID, the service identifier SID, the service component identifier SIDS, and the like can be used. Further, as the FM broadcast identification information, the country code of the FM broadcast station, the program identifier PI, and the frequency can be used. Be sure to include the program identifier PI in the FM broadcast identification information.

By the way, in such a radio broadcast receiving device 1, when the control unit 120 is instructed to receive the service of a specific DAB by the user, the service of the DAB instructed to receive is set as the receiving target broadcast, and the DAB tuner By causing 112 to start receiving the reception target broadcast and having the selector 117 select the sound to be output by the DAB tuner 112, the sound received by the reception target broadcast is output from the speaker 119. Further, when the user is instructed to receive a specific FM broadcast station, the control unit 120 sets the FM broadcast station instructed to receive the reception target broadcast and starts receiving the reception target broadcast on the FM tuner 113. At the same time, the selector 117 is made to select the sound to be output by the FM tuner 113, so that the sound received in the reception target broadcast is output from the speaker 119.

Here, the service linking information received by the DAB tuner 112 in the DAB service is that of the DAB service and the FM broadcasting station, which are broadcasting the program for each program (program) and have a simulcast relationship with each other. Show identification.

In addition, the FM broadcasting station that broadcasts the content broadcast by the DAB service and the PI program that matches the SID of the service is in a simulcast relationship, and broadcasts the program (program) with the same content. ing. The PI of the FM broadcast station is received by the FM tuner 113 together with the sound of the FM broadcast by the RDS broadcast from the FM broadcast station.

Further, the AF list received by the RDS of the FM broadcast shows the frequencies of other FM broadcasts broadcasting the program of the same PI.
Next, the control unit 120 accesses RadioDNS5 via the mobile communication device 111, and a link URL indicating the location of the information of the visual content URL of the visual content of the desired broadcasting service (DAB service or FM broadcasting station). And the information of the visual content URL of the visual content of the desired broadcasting service can be acquired from the acquired link URL.

However, RadioDNS5 does not provide link URLs for all broadcasting services, and only for broadcasting services whose link URL corresponds to the identification information of the broadcasting service and is registered in RadioDNS5 in advance, the visual content of the broadcasting service. Provides a link URL that indicates the location of the information in the visual content URL of.

That is, for some broadcasting services, the radio broadcasting receiving device 1 cannot obtain the link URL indicating the location of the information of the visual content URL of the visual content of the broadcasting service from RadioDNS5.

By the way, the control unit 120 performs the DAB follow-up process during the period when the DAB service is set to the reception target broadcast.
FIG. 4 shows the procedure of this DAB follow-up process.
As shown in the figure, the control unit 120 monitors the deterioration of the reception quality of the DAB in the DAB tuner 112 in the DAB follow-up process (step 402).
Then, if the reception quality deteriorates, it is checked whether there is another DAB service that is in a simulcast relationship with the DAB service that is being received by the DAB tuner 112 and that can be received. (Step 404), if present, the reception target broadcast is switched to another receivable DAB service, and the DAB tuner 112 is started to receive the reception target broadcast, so that the reception target broadcast is received after the switching. The output sound is output from the speaker 119 (step 406). Then, the process returns to the process from step 402.

Here, the service of the DAB which is the reception target broadcast and the service of another DAB which has a relationship of simulcast can be identified from the service linking information received from the DAB. In addition, the reception status of the DAB service, which is the reception target broadcast, and the other DAB services, which are related to simul broadcasting, is that the DAB tuner 112 is provided with two tuners for receiving DAB, and one of the tuners is used for reception target broadcasting. While receiving one DAB service, the other tuner is used in the background to repeatedly search the reception status of the DAB service that is the target broadcast and the service of another DAB that has a simul broadcasting relationship. To detect.

On the other hand, if there is a relationship between the DAB service, which is the reception target broadcast being received by the DAB tuner 112, and the simul broadcast, and there is no other DAB service that can be received (step 404), the reception target broadcast Check if there is a FM broadcast station that is in a simul-broadcast relationship with the DAB service being received by a DAB tuner 112 and can be received (step 408), and if so, the existing FM broadcast. To switch the reception target broadcast to the FM broadcast station with the best reception status among the stations, start the FM tuner 113 to start receiving the reception target broadcast, and let the selector 117 select the audio output by the FM tuner 113. Therefore, the sound received in the reception target broadcast after switching is output from the speaker 119 (step 410). Then, the DAB follow-up process is terminated.

In addition, the reception status of the FM broadcast station, which has a relationship between the DAB service being received by the DAB tuner 112, which is the reception target broadcast, and the Simul broadcast, is the DAB tuner during the period when the DAB service is set to the reception target broadcast. The service linking information received in 112 is acquired by repeatedly executing the FM tuner 113 in the background to search the reception status of each FM broadcast station that has a relationship between the receiving DAB service and the simul broadcast.

On the other hand, if there is a simulcast relationship with the DAB service being received by the DAB tuner 112, which is the broadcast to be received, and there is no FM broadcast station that can be received (step 408), from step 402. Return to the processing of.

The DAB follow-up process performed by the control unit 120 during the period when the DAB service is set to the reception target broadcast has been described above.
Next, the control unit 120 performs the FM broadcast follow process during the period in which the FM broadcast station is set as the reception target broadcast.
FIG. 5 shows the procedure of this FM broadcast follow-up process.
As shown in the figure, in the FM broadcast follow-up process, the control unit 120 has a relationship between the FM broadcast station being received by the FM tuner 113, which is the reception target broadcast, and the simulcast, and generates a receivable DAB service. (Step 502) and the occurrence of deterioration in the reception quality of FM broadcasting on the FM tuner 113 (step 504) are monitored.

Here, the DAB service having a simulcast relationship with the FM broadcast station being received by the FM tuner 113, which is the reception target broadcast, is identified as a DAB service having a SID equal to the PI of the FM broadcast station being received. It may be identified based on the service linking information received by the DAB.

In addition, the reception status of the DAB service, which has a relationship with the FM broadcast station being received by the FM tuner 113, which is the reception target broadcast, is received while the FM broadcast station is set to the reception target broadcast. This is acquired by having the DAB tuner 112 repeatedly execute the search for the reception status of the services of each DAB having a relationship between the FM broadcasting station inside and the simul broadcasting in the background.

Then, when there is a simul broadcast relationship with the FM broadcast station being received by the FM tuner 113 which is the reception target broadcast and a receivable DAB service is generated (step 502), the FM broadcast being received is received. The reception target broadcast is switched to the DAB service with the best reception condition, which is related to the station and the simul broadcast (step 510), the DAB tuner 112 starts receiving the reception target broadcast, and the DAB tuner 112 is set to the selector 117. By selecting the audio to be output, the audio received in the reception target broadcast after switching is output from the speaker 119. Then, the FM broadcast follow-up process is completed.

On the other hand, when the reception quality of the FM broadcast on the FM tuner 113 deteriorates (step 504), there is a relationship between the FM broadcast station, which is the broadcast to be received by the FM tuner 113, and the simul broadcast, and Check if there is another FM broadcast station that can be received (step 506), and if so, switch the receive target broadcast to another receivable FM broadcast station and receive it on the FM tuner 113. By starting the reception of the broadcast, the sound received in the reception target broadcast after the switching is output from the speaker 119 (step 508). Then, the process returns to the process from step 502.

Here, the station of the FM broadcast which is the reception target broadcast and the station of the other FM broadcast which has a relationship of simul broadcasting are identified from the AF list received from the FM broadcast station which is the reception target broadcast. Can be done.

Further, as for the reception state of the FM broadcast station which is the reception target broadcast and the other FM broadcast stations which are related to the simul broadcast, for example, the FM tuner 113 is provided with two tuners for receiving the FM broadcast, and one tuner is provided. Receives the FM broadcast station that is the target broadcast in, and uses the other tuner in the background to check the reception status of the FM broadcast station that is the receive target broadcast and other FM broadcast stations that are in a simul-broadcast relationship. Detect by repeated search.

On the other hand, when there is a simulcast relationship with the FM broadcast station which is the reception target broadcast being received by the FM tuner 113 and there is no other FM broadcast station that can be received (step 506), step 502. Return to the process from.

The FM broadcast follow-up process performed by the control unit 120 during the period when the FM broadcast station is set as the reception target broadcast has been described above.
Next, the visual content display process performed by the control unit 120 to display the visual content related to the broadcasting service (DAB service or FM broadcasting station) being received will be described.

FIG. 6 shows the procedure of this visual content display processing.
As shown in the figure, the control unit 120 monitors the occurrence of a change in the broadcast to be received in the visual content display process (step 602).
Then, when the broadcast to be received changes (step 602), the acquisition of the visual content currently being performed and the display on the display device 115 are stopped (step 604).

Next, an inquiry including identification information of the broadcasting service (DAB service or FM broadcasting station) received as the receiving target broadcast after the change of the receiving target broadcast is sent to RadioDNS5 via the mobile communication device 111, and the broadcast is concerned. Attempts to obtain the link URL L corresponding to the service (step 606).

Here, the RadioDNS5 that received the inquiry responds to the radio broadcast receiving device 1 and registers the link URL if the link URL associated with the identification information of the broadcasting service included in the inquiry is registered in the RadioDNS5. If not, the link URL does not respond to the radio broadcast receiving device 1.

Then, when the link URL can be acquired from RadioDNS5 (step 608), the acquired link URL is accessed to obtain the information of the visual content URL, and the visual content URL is acquired from the information. Then, the identification information (DAB identification information or FM broadcast identification) of the broadcast service (DAB service or FM broadcast station) received as the reception target broadcast after the change of the reception target broadcast detected in step 602 in the simulcast management table. The acquired visual content URL is registered in the entry in which the information) is registered, and the update date and time of the entry is updated (step 610). When step 610 is executed, if there is no entry in the simulcast management table in which the identification information of the broadcast service received as the receive target broadcast after the change of the receive target broadcast detected in step 602 is registered, the relevant broadcast is concerned. After creating an entry in the simulcast management table in which the identification information of the broadcasting service is registered, the acquired visual content URL is registered in the created entry, and the update date and time of the entry is updated.

Then, the control unit 120 starts acquiring the visual content from the acquired visual content URL and displaying it on the display device 115 (step 612).

Then, the process returns to the process from step 602.
On the other hand, if the acquisition of the link URL from RadioDNS5 attempted in step 606 fails (step 608), the broadcast service (DAB service) received as the receive target broadcast after the change of the receive target broadcast detected in step 602. Whether or not the entry in which the identification information (DAB identification information or FM broadcast identification information) of the FM broadcast station) is registered and the visual content URL is registered exists in the simulcast management table. Check (step 614), and if it does not exist, return to the process from step 602.

On the other hand, if the entry exists, the visual content URL registered in the entry is acquired from the simulcast management table (step 616).
Then, the acquisition of the visual content from the visual content URL acquired from the simulcast management table and the display on the display device 115 are started (step 612).
Then, the process returns to the process from step 602.
The visual content display process performed by the control unit 120 has been described above.
Next, the simulcast registration process performed by the control unit 120 will be described.
FIG. 7 shows the procedure of the simulcast registration process.
As shown in the figure, in the simulcast registration process, the control unit 120 monitors the occurrence of a change in the reception target broadcast (step 702), and if the reception target broadcast changes, the reception target broadcast It is determined whether or not the change is due to the switching from the DAB service of the reception target broadcast to the FM broadcast station by the DAB follow processing described above (step 704).

Then, if the change in the reception target broadcast is due to the switching from the DAB service of the reception target broadcast to the FM broadcast station by the DAB follow processing described above (step 704), it is detected in step 702 of the simul broadcast management table. In the entry in which the DAB identification information of the DAB service that was the reception target broadcast before the change of the reception target broadcast is registered, the identification of the FM broadcast station that is the reception target broadcast after the change is registered as FM broadcast identification information. At the same time, the update date and time of the entry is updated to the current date and time (step 708). Here, in step 708, if there is no entry in which the DAB identification information of the DAB service that was the reception target broadcast before the change of the reception target broadcast is registered at the time of executing step 708, the simulcast management is performed. After creating an entry in the table that registers the DAB identification information of the service of the relevant DAB, the identification of the FM broadcast station that is the broadcast to be received after the change is registered as the FM broadcast identification information in the created entry, and the entry is also registered. Update the update date and time to the current date and time.

Then, the process returns to the process from step 702.
On the other hand, unless the change in the reception target broadcast is due to the switching from the DAB service of the reception target broadcast to the FM broadcast station by the DAB follow processing described above (step 704), the change in the reception target broadcast is the FM broadcast described above. It is investigated whether or not it is due to the switching from the FM broadcast station of the reception target broadcast to the DAB service by the follow process (step 706). Then, if it is not due to the switching from the FM broadcast station of the reception target broadcast to the DAB service by the FM broadcast follow process (step 706), the process returns to the process from step 702.

On the other hand, if the change in the broadcast to be received is due to the switching from the FM broadcast station of the broadcast to be received to the DAB service by the FM broadcast follow process described above (step 706), the step of the simul broadcast management table. DAB identification of the DAB service that is the received broadcast after the change in the entry in which the FM broadcast identification information of the FM broadcast station that was the received broadcast before the change of the received broadcast detected in 702 is registered. While registering as information, the update date and time of the entry is updated to the current date and time (step 710). Here, in step 710, when the FM broadcast identification information of the FM broadcast station that was the reception target broadcast before the change of the reception target broadcast does not exist at the time of executing step 710, the simul After creating an entry in the broadcast management table that registers the FM broadcast identification information of the FM broadcast station, register the identification of the FM broadcast station that is the received broadcast after the change in the created entry as FM broadcast identification information. At the same time, the update date and time of the entry is updated to the current date and time.

Then, the process returns to the process from step 702.
The simulcast registration process performed by the control unit 120 has been described above.
Hereinafter, an operation example of such a radio broadcast receiving device 1 is shown in FIG.
Now, when the DAB service is set to the reception target broadcast at time t0 in the radio broadcast receiving device 1, the reception of the DAB service and the output of the audio received from the DAB service are started, and the reception from the RadioDNS 5 is started. An attempt is made to obtain the link URL of the DAB service inside. Then, if the acquisition of the link URL is successful, the acquisition of the information of the visual content URL from the acquired link URL, the acquisition of the visual content from the visual content URL indicated by the acquired information, and the display on the display device 115 are started. At the same time, the visual content URL indicated by the information obtained from the link URL obtained from RadioDNS5 is registered in the entry in the simul broadcast management table in which the DAB identification information of the DAB service being received is registered.

After that, when the reception quality of the DAB service deteriorates at time t1 and the broadcast to be received is switched to the FM broadcast station that has a simul-broadcast relationship with the DAB service that had been received until then, the FM broadcast station. And the output of the audio received from the FM broadcast station is started, and the identification of the DAB service, which is the broadcast to be received before switching, is registered as DAB identification information in the entry of the simul broadcast management table. The identification of the FM broadcast station, which is the broadcast to be received after switching, is registered as FM broadcast identification information.

Then, an attempt is made to acquire the link URL of the FM broadcast station being received from RadioDNS5. Here, since RadioDNS5 does not provide the link URL of the FM broadcast station being received, the acquisition of the link URL fails.

Then, if the radio broadcast receiving device 1 fails to acquire the link URL from RadioDNS5, the identification of the receiving FM broadcast station is registered as the FM broadcast identification information in the simulcast management table. The visual content URL is acquired, and the acquisition of the visual content from the visual content URL acquired from the simulcast management table and the display on the display device 115 are started.

As a result, during the reception and output of the FM broadcasting station for which RadioDNS5 does not provide the link URL, the visual content related to the DAB service related to the Simulcasting relationship with the FM broadcasting station is acquired and displayed. Here, the visual content related to the DAB service related to the FM broadcast station simulcast is sent to the FM broadcast station related to the DAB service and the simulcast, which is the same broadcast as the DAB service. Is also related visual content.

Therefore, according to the present embodiment, the visual content related to the broadcast service is acquired and displayed even during the reception output of the broadcast service for which RadioDNS5 does not provide the link URL which is the URL of the information of the visual content URL. Will be able to.

The embodiment of the present invention has been described above.
By the way, in the above embodiment, the entry of the simulcast management table in which the identification information of the broadcast service being received is registered as the broadcast to be received is transmitted to the broadcast service unrelated to the simulcast of the broadcast service. It may be deleted or disabled when it is switched.

Further, in the above embodiment, the visual content display process shown in FIG. 6 is currently performed when the change of the reception target broadcast detected in step 602 is the switching of the reception target broadcast to the FM broadcast station. After stopping the acquisition of the visual content from the provider server 4 and the display on the display device 115 (step 604), the process may unconditionally proceed to step 614. That is, while the FM broadcast station is receiving, only the visual content URL registered in the simulcast management table may be used for acquiring the visual content.
Provider server

1 ... Radio broadcast receiver, 2 ... Broadcasting station, 3 ... Internet, 4 ... Provider server, 5 ... RadioDNS, 111 ... Mobile communication device, 112 ... DAB tuner, 113 ... FM tuner, 114 ... Input device, 115 ... Display device , 116 ... storage device, 117 ... selector, 118 ... amplifier, 120 ... control unit, 119 ... speaker.

Claims (7)

A radio broadcast receiver that can connect to the Internet and receives radio broadcasts.
A reception output means that receives content from the broadcast service set for the broadcast to be received and outputs the received content,
When the reception quality of the reception target broadcast deteriorates, a broadcasting service follow-up means for switching the reception target broadcast to another broadcast service having a good reception quality that broadcasts the same content as the reception target broadcast, and
When the reception target broadcast changes, the URL of the visual content of the broadcast service set for the reception target broadcast after the change is changed from the information service that provides the URL of the visual content of each broadcasting service via the Internet. It has a visual content display means for storing the URL of the acquired visual content while receiving and displaying the distribution of the visual content from the acquired URL.
When the reception target broadcast changes, the visual content display means cannot acquire the URL of the visual content of the broadcast service set for the received reception target broadcast after the change from the information service. Visual from the URL of the visual content of the other broadcast service saved when the other broadcast service broadcasting the same content as the broadcast service set for the changed receive target broadcast was the receive target broadcast. A radio broadcast receiving device characterized in receiving and displaying content. The radio broadcast receiving device according to claim 1.
The visual content display means
When the reception target broadcast changes, if the URL of the visual content of the broadcast service set for the reception target broadcast after the change can be acquired from the information service, the visual content is distributed from the acquired URL. In addition to receiving and displaying, the URL of the acquired visual content is saved in association with the identification of the broadcasting service set for the broadcast to be received after the change.
When the broadcast service follow-up means switches the reception target broadcast to another broadcasting service having good reception quality that broadcasts the same content as the reception target broadcast, the broadcast service becomes the reception target broadcast after the switching. Is saved in association with the identification of the broadcasting service that was the target broadcast before the switching.
When the reception target broadcast changes, if the URL of the visual content of the broadcast service set for the received reception target broadcast after the change cannot be obtained from the information service, the reception target broadcast after the change is selected. The feature is that the visual content is delivered and displayed from the URL of the visual content saved in association with the identification of other broadcasting services saved in association with the identification of the set broadcasting service. Radio broadcast receiver. A radio broadcast receiver that can connect to the Internet and receives digital radio broadcasts and analog radio broadcasts.
Of the broadcasting service of digital radio broadcasting and the broadcasting service of analog radio broadcasting, the receiving output means for receiving the content from the broadcasting service set as the receiving target broadcast and outputting the received content,
When the reception target broadcast is a broadcasting service of a digital radio broadcast, when the reception quality of the reception target broadcast deteriorates, another digital radio having a good reception quality that broadcasts the same content as the reception target broadcast. If there is no broadcasting service for broadcasting and there is a broadcasting service for analog radio broadcasting with good reception quality that broadcasts the same content as the receiving target broadcasting, the same content as the receiving target broadcasting is broadcast. A broadcasting service follow-up means for switching the receiving target broadcast to a broadcasting service for analog radio broadcasting with good reception quality.
When the reception target broadcast changes to a digital radio broadcast broadcasting service, the information service that provides the URL of the visual content of each broadcasting service via the Internet is set to the reception target broadcast after the change. It has a visual content display means that acquires the URL of the visual content of the broadcasting service, receives the distribution of the visual content from the acquired URL and displays it, and saves the URL of the acquired visual content.
When the reception target broadcast changes to a broadcast service of analog radio broadcasting, the visual content display means broadcasts the same content as the broadcasting service set for the reception target broadcast after the change from the information service. Radio broadcast reception characterized in that the visual content is delivered and displayed from the URL of the visual content of the digital radio broadcast broadcast service saved when the broadcast service of the digital radio broadcast is the reception target broadcast. apparatus. The radio broadcast receiving device according to claim 3.
The digital radio broadcasting is DAB (Digital Audio Broadcasting), and the analog radio broadcasting is an FM broadcasting radio broadcasting receiving device. The radio broadcast receiving device according to claim 1, 2, 3 or 4.
The information service is a radio broadcast receiving device characterized in that it is a service according to the Radio DNS standard. The radio broadcast receiving device according to claim 1, 2, 3, 4 or 5.
The radio broadcast receiving device is an in-vehicle radio broadcasting receiving device mounted on an automobile. A visual content display method for displaying visual content in a radio broadcast receiver that receives radio broadcasts and can be connected to the Internet.
Steps to receive content from the broadcast service set for the broadcast to be received and output the received content,
When the reception quality of the reception target broadcast deteriorates, the step of switching the reception target broadcast to another broadcast service having good reception quality that broadcasts the same content as the reception target broadcast, and
When the reception target broadcast changes, the URL of the visual content of the broadcast service set for the reception target broadcast after the change is changed from the information service that provides the URL of the visual content of each broadcasting service via the Internet. If the URL of the visual content can be obtained, the visual content will be delivered and displayed from the obtained URL, and the URL of the obtained visual content will be saved and the URL of the visual content will be obtained. If it cannot be done, the other broadcasting service saved when the other broadcasting service that broadcasts the same content as the broadcasting service set for the receiving target broadcasting after the change is the receiving target broadcasting. A visual content display method characterized by having a step of receiving and displaying the distribution of the visual content from the URL of the visual content of.