JP6652277B2 - Radio receiver - Google Patents

Description

  The present invention relates to a technique for supporting the use of FM supplementary broadcasting in a radio receiving apparatus that receives AM broadcasting.

2. Description of the Related Art Conventionally, there has been known a radio receiving apparatus capable of receiving FM broadcast of a broadcast frequency within a broadcast frequency band of FM complementary broadcast in addition to AM broadcast (for example, Non-Patent Document 1).
Here, the FM supplementary broadcast refers to an FM broadcast that is implemented in the broadcast area of the AM broadcast for measures against hearing loss, disaster, and foreign wave interference, and has a relationship between AM broadcast and simultaneous broadcast.

  Further, in a radio receiving apparatus that receives radio broadcasts of a plurality of different broadcast standards, DAB (Digital Digital Broadcasting) is used as a technique for switching a broadcast to be received from a broadcast being received to another broadcast which is related to a simulcast. In a radio receiving apparatus that receives audio broadcasting (Digital Audio Broadcasting) and FM broadcasting, there is a technology for switching a broadcast to be received between DAB and FM broadcasting that is related to DAB and simulcasting according to reception quality. It is known (for example, Patent Document 1).

"Radio / CD radio radio and cassette player", [Search March 23, 2016], Internet <URL: http://www.sony.jp/radio/radio_sony/fm/>

JP 2014-204189 A

  The broadcast frequency of the AM broadcast does not correspond one-to-one with the broadcast frequency of the FM complementary broadcast that is related to the AM broadcast and the simulcast, and the broadcast area of one AM broadcast has a plurality of broadcast frequencies different from each other. Is divided into FM supplementary broadcast areas, FM supplementary broadcast areas are set in only some of the AM broadcast areas, and the relationship between simultaneous broadcast and AM broadcasts May not be present.

  For this reason, it is difficult for the user to know whether there is any FM supplementary broadcast available at the current location, the available FM supplementary broadcast frequency, and the like.

  On the other hand, according to the radio receiving apparatus capable of receiving the FM broadcast of the broadcast frequency within the broadcast frequency band of the FM supplementary broadcast in addition to the AM broadcast described above, the user himself has searched for the broadcast frequency of the desired FM supplementary broadcast. Since it is necessary to use the FM supplementary broadcast above, it is difficult for the user to make full use of the FM supplementary broadcast when using the radio receiving apparatus while moving over a relatively long distance.

  Therefore, an object of the present invention is to provide a radio receiving apparatus capable of receiving an FM broadcast in a broadcast frequency band of an FM complement broadcast in addition to an AM broadcast, and to support the user in utilizing the FM complement broadcast.

  In order to achieve the above object, the present invention provides a radio receiving apparatus for receiving an AM broadcast and an FM broadcast, comprising: an AM receiving section for receiving the AM broadcast; an FM receiving section for receiving the FM broadcast; Audio output means for selectively outputting one of the sound of the AM broadcast being performed and the sound of the FM broadcast received by the FM receiving unit; Storage means for storing FM supplementary broadcast information in which a broadcast frequency of an FM supplementary broadcast, which is an FM broadcast having a relationship between the FM broadcast and the simultaneous broadcast, and a sound of the AM broadcast received by the AM receiving unit by the sound output means. Is output to the FM supplementary broadcast information, the reception state of the FM supplementary broadcast of the broadcast frequency registered for the AM broadcast being received by the AM reception unit using the FM reception unit. Investigate and receive When there is an available FM supplementary broadcast that is a good FM supplementary broadcast, the presence of the available FM supplementary broadcast is presented to the user, and the FM receiving unit is provided in accordance with a predetermined user operation. Receiving the available FM supplementary broadcast, and FM supplementary broadcast use support means for controlling switching of the sound output from the sound output means to the sound of the FM broadcast received by the FM receiving section. It is.

  Here, such a radio receiving device includes a display device in the radio receiving device, and the FM supplementary broadcast use support means provides a predetermined information to the user indicating that the available FM supplementary broadcast exists. The display object may be displayed on the display device.

In this case, the FM supplementary broadcast use support means may receive a user operation on the display object as the predetermined operation.
Further, in the above-mentioned radio receiving apparatus, in the FM supplementary broadcast use support means, when a plurality of the available FM supplementary broadcasts exist, the plurality of available FM supplementary broadcasts are selected according to a predetermined user operation. Controls the reception of the available FM supplementary broadcast having the best reception state by the FM reception unit and the switching of the audio output by the audio output unit to the audio of the FM broadcast received by the FM reception unit. May be configured.

  Alternatively, the above-mentioned radio receiving device includes a display device in the radio receiving device, and in the FM supplementary broadcast use support means, when there are a plurality of the available FM supplementary broadcasts, Displaying a list of broadcast frequencies of the available FM supplementary broadcasts on the display device, accepting a user's selection of broadcast frequencies on the list, and displaying the available FM complement broadcasts of the accepted broadcast frequencies. The reception of the FM reception unit and the switching of the sound output by the sound output unit to the sound of the FM broadcast received by the FM reception unit may be controlled.

  According to such a radio receiving apparatus, when an AM broadcast is used, when an FM supplementary broadcast having a relationship between the AM broadcast and the simulcast can be used, the fact is presented to the user, The reception output broadcast is switched from the AM broadcast to the FM supplementary broadcast according to a predetermined operation.

Therefore, the user can recognize the existence of the available FM supplementary broadcast from the presentation and start using the FM supplementary broadcast only by performing a predetermined operation.
In order to achieve the above object, the present invention provides a radio receiving apparatus for receiving an AM broadcast and an FM broadcast, a display device, an AM receiving section for receiving the AM broadcast, an FM receiving section for receiving the FM broadcast, Audio output means for selectively outputting one of the audio of the AM broadcast received by the AM receiver and the audio of the FM broadcast received by the FM receiver; The storage means for storing the FM supplementary broadcast information in which the broadcast frequency of the FM supplementary broadcast, which is the FM broadcast having the relationship between the AM broadcast and the simultaneous broadcast, is stored, and the channel selection reception screen showing the AM broadcast list is displayed. It is displayed on the device, accepts the selection of the AM broadcast by the user on the list of the tuning reception screen, receives the AM broadcast that has accepted the selection of the AM receiving unit, and outputs the audio output by the audio output unit. A AM broadcast channel selecting means for controlling switching of the AM broadcast received by the receiving unit to audio, and for each AM broadcast included in the list displayed by the AM broadcast channel selecting means, the FM complementary broadcast information includes Investigate the reception status of the FM supplementary broadcast of the broadcast frequency registered for the broadcast using the FM receiving unit, and set the FM supplementary broadcast having a good reception state as the FM supplementary broadcast usable for the AM broadcast. And FM supplementary broadcast search means. However, the AM broadcast tuning means associates each of the displayed AM broadcasts in the list with the available FM complement broadcast with the available FM complement set for the AM broadcast. A display object associated with a broadcast is included in the tuning reception screen, and in response to a user operation on the display object, reception of the available FM supplementary broadcast associated with the display object by the FM receiving unit. Controlling the switching of the audio output from the audio output means to the audio of the FM broadcast received by the FM receiver.

  According to such a radio receiving apparatus, among the AM broadcasts in the AM broadcast list displayed on the tuning reception screen for receiving the tuning of the AM broadcast from the user, the FM complement having the relationship between the AM broadcast and the simulcast is included. When there is an AM broadcast that can use the broadcast, a display object indicating that there is an available FM supplementary broadcast is displayed in association with the display of the AM broadcast in which the available FM supplementary broadcast exists, and In response to the operation of the display object, the reception and output of the available FM supplementary broadcast is started.

  Therefore, the user can identify the AM broadcast that can use the FM supplementary broadcast from the display of the display object on the AM broadcast channel selection reception screen, and operates the display object when the user wants to use the FM supplementary broadcast. With only this, the use of the FM broadcast can be started.

Note that the above radio receiving device may be mounted on a mobile object.
Further, each of the above radio broadcast receiving apparatuses replaces the AM broadcast with the first type broadcast which is a broadcast of an arbitrary first broadcast standard, and replaces the FM broadcast with an arbitrary broadcast standard different from the first broadcast standard. The FM supplementary broadcast is applied to a type 2 broadcast, which is a broadcast of a certain second broadcast standard, by replacing it with a simultaneous type 2 broadcast, which is a type 2 broadcast having a relationship between the type 1 broadcast and the simulcast. Is also good.

  As described above, according to the present invention, in a radio receiving apparatus capable of receiving FM broadcasts in the broadcast frequency band of FM supplementary broadcasts in addition to AM broadcasts, it is possible to support the user to utilize FM supplementary broadcasts.

FIG. 1 is a block diagram illustrating a configuration of a radio receiving device according to an embodiment of the present invention. It is a figure showing FM complement broadcast data concerning an embodiment of the present invention. It is a flowchart which shows the FM supplementary broadcast search processing which concerns on embodiment of this invention. It is a flowchart which shows the FM complementary broadcast switching processing which concerns on embodiment of this invention. FIG. 3 is a diagram illustrating a UI of the radio receiving device according to the embodiment of the present invention. FIG. 3 is a diagram illustrating a UI of the radio receiving device according to the embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described taking an example of application to an in-vehicle system mounted on an automobile.
FIG. 1 shows a configuration of an in-vehicle system according to the present embodiment.
As shown in the figure, the in-vehicle system includes a radio receiving device 1, a navigation device 2, a control device 3, a display device 4, an audio output device 5 including an equalizer and an amplifier, an input device 6, a storage device 7, and a speaker 8. I have.

Further, the radio receiving apparatus 1 includes an AM receiving unit 11 for receiving an AM broadcast, an FM receiving unit 12 for receiving an FM broadcast, a selector 13, and a controller 14 for controlling the above units.
The AM receiver 11 detects an AM front end 111 (AM F / E 111) that detects a broadcast frequency within a designated AM broadcast frequency band and outputs a received signal, and outputs an audio signal from the received signal output by the AM front end 111. And an AM demodulation unit 112 for demodulating and outputting the same. The FM receiving unit 12 detects an FM broadcast frequency within a designated FM broadcast frequency band and outputs a received signal, and an FM demodulator that demodulates and outputs audio from a received signal output by the FM front end 121. A portion 122 is provided.

Next, the storage device 7 stores an FM channel selection candidate list, an AM channel selection candidate list, and FM supplementary broadcast data.
Here, the FM channel selection candidate list includes the broadcast station names and broadcast frequencies of a plurality of FM broadcast stations registered in advance by the user, or the currently receivable FM broadcasts searched by making the radio receiver 1 execute a frequency search. The broadcast station name and broadcast frequency of the station are registered.

  In addition, the AM station selection candidate list includes the broadcast station names and broadcast frequencies of a plurality of AM broadcast stations registered in advance by the user, or the AM receivable broadcast stations that are currently receivable searched by causing the radio receiver 1 to perform a frequency search. Is registered.

  Next, as shown in FIG. 2, the FM supplementary broadcast data includes AM broadcast station data provided corresponding to all AM broadcast stations nationwide, and each AM broadcast station data includes a corresponding AM broadcast station. The broadcasting station name of the station, the AM broadcasting frequency indicating the broadcasting frequency within the AM broadcasting frequency band used by the corresponding AM broadcasting station for the AM broadcasting, and the relationship between the AM broadcasting of the corresponding AM broadcasting station and the simulcast ( An FM supplementary broadcast frequency indicating a broadcast frequency in the FM broadcast frequency band used for the FM supplementary broadcast, which is the FM broadcast having the same broadcast program content, is registered.

  Now, returning to FIG. 1, the control device 3 receives a user operation via the input device 6 with an appropriate user interface using the display device 4, and controls the operation of the navigation device 2 and the radio receiving device 1. A screen displaying the video output by the navigation device 2 and the information output by the radio receiving device 1 is displayed on the display device 4, and the audio output by the navigation device 2 and the radio receiving device 1 is output from the audio output device 5. Processing is performed.

  For example, the control device 3 displays a predetermined FM broadcast channel selection reception screen created using the FM channel selection candidate list on the display device 4, receives a selection of FM broadcast from the user via the input device 6, and selects the FM broadcast. Is instructed to the controller 14 of the radio receiving apparatus 1 to receive the broadcast frequency of the FM broadcast. On the other hand, the controller 14 of the radio receiving apparatus 1 that has received the instruction sets the broadcast frequency of the FM broadcast for which the reception output has been instructed in the FM front end 121 of the FM receiving unit 12, thereby receiving the FM broadcast of the frequency and performing the FM broadcast The output of the broadcast audio is started, and the audio output from the FM receiving unit 12 is output to the control device 3 by the selector 13. Then, the control device 3 causes the audio output device 5 to output the sound of the FM broadcast selected by the user output from the radio receiving device 1 to the speaker 8 as described above.

  Similarly, the control device 3 displays a predetermined AM broadcast tuning reception screen created using the AM tuning candidate list on the display device 4, and allows the user to select an AM broadcast via the input device 6. It instructs the controller 14 of the radio receiver 1 of the reception output of the broadcast frequency of the AM broadcast that has been accepted and selected. On the other hand, the controller 14 of the radio receiving apparatus 1 that has received the instruction sets the broadcast frequency of the AM broadcast whose reception output has been instructed in the AM front end 111 of the AM receiving unit 11, thereby receiving the AM broadcast of that frequency and receiving the AM. The output of the broadcast audio is started, and the selector 13 outputs the audio output from the AM receiving unit 11 to the control device 3. Then, the control device 3 causes the audio output device 5 to output the audio of the AM broadcast selected by the user output from the radio receiving device 1 to the speaker 8 as described above.

  During the period when the audio of the AM broadcast received by the AM receiving unit 11 of the radio receiving device 1 is being output from the speaker 8, that is, during the period when the AM broadcast is being received and output, the control device 3 sets the FM Perform complementary broadcast search processing.

FIG. 3 shows the procedure of the FM supplementary broadcast search process.
As illustrated, in the FM supplementary broadcast search process, the control device 3 determines whether or not there is an FM supplementary broadcast of the AM broadcast being received by the radio receiving device 1 during the reception of the FM supplementary broadcast data in the storage device 7. The determination is made with reference to the AM broadcast station data of the AM broadcast station of the AM broadcast (step 302). The AM broadcast station data of the AM broadcast station of the AM broadcast being received is the AM broadcast station data in which the broadcast frequency of the AM broadcast being received is registered as the AM broadcast frequency, or the broadcast station of the AM broadcast being received. The name is obtained as registered AM broadcast station data. Further, when there is a broadcast frequency registered as an FM supplementary broadcast frequency in the AM broadcast station data of the AM broadcast station of the AM broadcast being received, the FM supplementary broadcast of the AM broadcast being received exists.

  If there is no FM supplementary broadcast of the AM broadcast being received by the radio receiver 1 (step 302), the FM complement broadcast presence flag is cleared (step 312), and the AM broadcast received by the radio receiver 1 is deleted. After the broadcast frequency is changed (step 314), the process returns to step 302.

  On the other hand, if there is an FM supplementary broadcast of the AM broadcast being received (step 302), the broadcast frequency of each existing FM supplementary broadcast, that is, the AM broadcast station data of the AM broadcast station of the AM broadcast being received is added to the broadcast frequency. Each broadcast frequency registered as the FM supplementary broadcast frequency is scanned, and the reception state of the FM supplementary broadcast at each broadcast frequency is checked (step 304).

Here, the scanning of each frequency of each existing FM complementary broadcast is performed as follows.
That is, the control device 3 sequentially instructs the controller 14 of the radio receiving device 1 to check the reception quality of the search frequency by setting each broadcast frequency of the FM supplementary broadcast of the AM broadcast being received as a search frequency one by one. The controller 14 instructed to check the reception quality of the FM broadcast of the search frequency sets the search frequency in the FM front end 121 of the FM receiver 12 so that the FM receiver 12 receives the FM broadcast of the search frequency. , A value related to the reception quality of the search frequency, such as the reception electric field strength of the search frequency and the SN ratio of the reception signal of the search frequency, is obtained from the FM front end 121 and the FM demodulation unit 122 of the FM reception unit 12 as a check result. Notify the control device 3. Then, the control device 3 calculates the reception state of the search frequency from the check result notified from the radio receiving device 1.

  Now, as described above, if the reception state of each broadcast frequency of the FM complement broadcast of the AM broadcast being received is checked (step 304), the broadcast frequency of the FM complement broadcast of the AM broadcast being received is determined. In the meantime, it is checked whether or not there is a broadcast frequency having a good reception state (step 306). If not, the FM complement broadcast presence flag is cleared (step 316), and the process returns to step 302.

  On the other hand, when there is a frequency with a good reception state among the broadcast frequencies of the FM complementary broadcast of the AM broadcast being received (step 306), the broadcast frequency with the best reception state among the existing frequencies is used. The frequency is set to the FM complementary broadcast frequency (step 308).

Then, the FM complement broadcast flag is set (step 310), and the process returns to step 302.
The FM supplementary broadcast search processing performed by the control device 3 during the reception output of the AM broadcast has been described above.
According to such FM supplementary broadcast search processing, while the FM supplementary broadcast of the AM broadcast being received and output is receivable, the FM supplementary broadcast presence flag is set, and the FM supplementation of the AM broadcast being received and output is performed. The broadcast frequency of the FM receivable broadcast that can be received best among the broadcasts is set as the current FM complementary broadcast frequency. On the other hand, during the period in which the FM supplementary broadcast of the AM broadcast being received and output cannot be received, the FM supplementary broadcast existence flag is cleared.

Next, the FM supplementary broadcast switching process performed by the control device 3 will be described.
Here, this FM supplementary broadcast switching processing is performed when the output of the audio of the AM broadcast or the FM broadcast received by the AM receiving unit 11 or the FM receiving unit 12 of the radio receiving apparatus 1 from the speaker 8 is started, that is, when the user It is started and executed when the use of the radio receiver 1 is started.

FIG. 4 shows the procedure of the FM supplementary broadcast switching process.
As shown in the figure, in the FM supplementary broadcast switching process, the control device 3 is in a state of receiving and outputting an AM broadcast (step 402) and in a state of receiving and outputting an FM supplementary broadcast. (Step 404) is checked. Here, the state in which the AM broadcast is being received and output is a state in which the sound of the AM broadcast being received by the AM receiving unit 11 of the radio receiving apparatus 1 is being output from the speaker 8, and the FM complementary broadcast is being received. The outputting state is a state in which the sound of the FM supplementary broadcast received by the FM receiving unit 12 of the radio receiving apparatus 1 is being output from the speaker 8.

  If the AM broadcast is currently being received and output (step 402), it is checked whether the FM supplementary broadcast presence flag is set (step 406). If not, the process returns to step 402. .

  On the other hand, if the FM supplementary broadcast presence flag is set (step 406), it is determined whether the reception state of the AM broadcast being received and output has deteriorated (step 408), and the user's FM with respect to the input device 6 It is determined whether or not a supplementary broadcast switching operation has occurred (step 410). If neither operation has occurred, the process returns to step 402.

  On the other hand, if any of the deterioration of the reception state of the AM broadcast being received and output (step 408) and the user's FM supplementary broadcast switching operation on the input device 6 (step 410) has occurred, the current FM supplementary broadcast is performed. By instructing the controller 14 of the radio receiver 1 to output the FM broadcast of the broadcast frequency set to the frequency, the broadcast to be received and output is switched to the FM supplementary broadcast of the AM broadcast which has been received and output up to the present time ( Step 412).

  Here, the reception state of the AM broadcast being received and output is calculated by acquiring, via the controller 14 of the radio receiving apparatus 1, a value related to the above-described reception quality detected by the AM receiving unit 11.

Details of the FM supplementary broadcast switching operation performed by the user who detects the occurrence in step 410 will be described later.
Then, when the broadcast to be received and output is switched to the FM complementary broadcast as described above, the process returns to step 402.
On the other hand, when the FM supplementary broadcast is currently being received and output (step 404), the following processing is performed.
Here, whether or not the FM complementary broadcast is currently being received and output is determined by checking whether the broadcast to be received and output is changed after the broadcast to be received and output is switched to the FM complementary broadcast in step 412 described above. Whether the broadcast frequency of the FM broadcast being received by the FM receiving unit 12 of the radio receiving apparatus 1 is registered as an FM supplementary broadcast frequency in any AM broadcast station data of the FM supplementary broadcast data. The determination can be made based on whether or not the frequency is used.

  By the way, if the FM supplementary broadcast is currently being received and output (step 404), it is determined whether the reception state of the FM supplementary broadcast being received and output has deteriorated (step 414), and the input device 6 It is checked whether or not the user has performed a simultaneous AM broadcast switching operation (step 416). If neither has occurred, the process returns to step 402.

The simultaneous AM broadcast switching operation of the user who detects the occurrence in step 416 will be described later.
On the other hand, when either the deterioration of the reception state of the FM complementary broadcast being received and output (step 414) or the user's simultaneous AM broadcast switching operation on the input device 6 (step 416) has occurred, the reception output is performed. By instructing the controller 14 of the radio receiving apparatus 1 to output the AM broadcast at the broadcast frequency of the AM broadcast having the relationship between the FM complementary broadcast and the simultaneous broadcast, the broadcast to be received and output has been received and output up to the present time. The FM supplementary broadcast is switched to an AM broadcast having a relationship between the FM supplementary broadcast and the simultaneous broadcast (step 418), and the process returns to step 402.

  Here, the reception state of the FM complement broadcast being received and output is calculated by acquiring, via the controller 14 of the radio receiving apparatus 1, a value related to the above-described reception quality detected by the FM receiving unit 12.

  In addition, the broadcast frequency of the AM broadcast that is in a relationship between the FM complement broadcast that is being received and output and the simulcast is the broadcast frequency of the FM complement broadcast that is being received and output in the FM complement broadcast data is registered as the FM complement broadcast frequency. It can be obtained as the AM broadcast frequency registered in the existing AM broadcast station data. Here, when there are a plurality of AM broadcast frequencies registered in the AM broadcast station data, in step 418, the reception state of each of the existing AM broadcast frequencies is checked, and the reception state of the AM broadcast frequency having the best reception state is determined. The broadcast to be output may be switched.

  If the broadcast to be received and output is not changed after the broadcast to be output and received is switched to the FM supplementary broadcast in step 412 described above, in step 418, the broadcast before and after the FM and complementary broadcast to be received and output is output. The broadcast to be received and output may be switched to the broadcast frequency of the AM broadcast that has been received and output.

  Also, in step 418, if there is no AM broadcast with a good reception state among the AM broadcasts having the relationship between the FM supplementary broadcast and the simultaneous broadcast being received and output, the broadcast to be received and output is switched to the AM broadcast. The processing may return to step 402 without performing the processing.

The FM supplementary broadcast switching process performed by the control device 3 has been described above.
Hereinafter, the FM supplementary broadcast switching operation of the user who detects occurrence in step 410 of the FM supplementary broadcast switching process and the simultaneous AM broadcast switching operation of the user who detects occurrence in step 416 will be described.

  The control device 3 performs FM complement during a period in which the AM broadcast is received and output and the FM complement broadcast presence flag is set, that is, during a period in which the FM complement broadcast of the AM broadcast being received and output can be received. The display indicating that the broadcast is available and the reception of the user's FM supplementary broadcast switching operation are performed.

The display indicating that the FM supplementary broadcast of the AM broadcast being received and output is available and the reception of the user's FM supplementary broadcast switching operation are performed as follows.
That is, for example, when an AM broadcast is currently being received and output and the above-described AM broadcast channel selection receiving screen for receiving selection of an AM broadcast from the user is displayed on the display device 4, the currently output AM broadcast is being received. The display indicating that the FM supplementary broadcast can be used and the reception of the user's FM supplementary broadcast switching operation are set as the AM broadcast channel selection reception screen. When the FM supplementary broadcast presence flag is not set, the AM shown in FIG. When the FM supplementary broadcast presence flag is set using the broadcast channel selection reception screen, this is performed by using the AM broadcast channel selection reception screen shown in FIG. 5A2.

  Here, the AM broadcast channel selection reception screen of FIG. 5a1 used when the FM supplementary broadcast presence flag is not set is displayed by selecting a channel selection button 51 corresponding to each AM broadcast registered in the AM channel candidate list. In the tuning button 51, the broadcasting station name and frequency of the corresponding AM broadcast are arranged in a form representing the corresponding tuning, and the control device 3 operates the tuning channel in response to the operation of the tuning button 51 by the user. The selection of the user of the AM broadcast corresponding to the button 51 is accepted, and the start of the reception output of the AM broadcast for which the selection has been accepted is controlled. Also, on this AM broadcast channel selection reception screen, the channel selection button 51 corresponding to the AM broadcast being received and output is highlighted.

  On the other hand, in the AM broadcast channel selection reception screen of FIG. 5A2 used when the FM supplementary broadcast presence flag is set, the channel selection button 51 corresponding to the AM broadcast being received and output on the AM broadcast channel selection reception screen of FIG. 5A1. The FM complement broadcast of the AM broadcast being received and output is displayed by displaying the FM complement button 52 indicating “FM complement” in the right side of the reduced channel selection button 51 by reducing the horizontal size of Indicates that it is available. In addition, the control device 3 accepts the operation of the FM complement button 52 as an FM complement broadcast switching operation. In addition, also in the AM broadcast channel selection reception screen of FIG. 5A2, the control device 3 receives the selection of the AM broadcast user corresponding to the operated channel selection button 51 in response to the user's operation of the channel selection button 51, The start of the reception output of the AM broadcast for which the selection has been received is controlled.

  On the other hand, when the FM supplementary broadcast is being received and output and the AM broadcast channel selection reception screen is displayed, the control device 3 supports the AM broadcast which is in a relationship between the FM supplementary broadcast being received and output and the simulcast. In response to the operation of the channel selection button 51 (the channel selection button 51 to the left of the FM complement button 52 of the FM complement broadcast being received and output), a simultaneous AM broadcast switching operation is accepted.

  Also, for example, when an AM broadcast is currently being received and output, and a screen output from the navigation device 2 is displayed on the display device 4 on the display device 4, the FM complement broadcast of the AM broadcast being received and output can be used. And the reception of the FM supplementary broadcast switching operation by the user, when the FM supplementary broadcast presence flag is not set, only the screen output by the navigation device 2 is displayed on the display device 4 as shown in FIG. When the FM complement broadcast flag is set, the FM complement button 52 indicating “FM complement” is superimposed on the screen output by the navigation device 2 as shown in FIG. 5B2. By doing so, it indicates that the FM supplementary broadcast can be used, and accepts the user's operation of the FM supplementary button 52 as the FM supplementary broadcast switching operation. Do Ri.

  On the other hand, the control device 3 receives the user's simultaneous AM broadcast switching operation when receiving and outputting the FM supplementary broadcast and displaying the screen output by the navigation device 2 on the display device 4. The AM switching button, which is indicated as “AM switching”, is superimposed on the screen output by the navigation device 2, and the operation of the AM return button is performed according to the operation of the channel selection button 51 by the user. It is done by accepting as.

The embodiment of the invention has been described.
As described above, according to the present embodiment, when the AM broadcast is used, when the FM supplementary broadcast having the relationship between the AM broadcast and the simultaneous broadcast is available, the fact is displayed to the user. The received output broadcast is switched from the AM broadcast to the FM supplementary broadcast in accordance with a predetermined operation associated with the display.

  Therefore, the user can recognize the existence of the available FM supplementary broadcast from the display of the radio receiving device 1 and start using the FM supplementary broadcast simply by performing a predetermined operation associated with the display. Can be.

  In the above-described embodiment, step 308 of the FM supplementary broadcast search process in FIG. 3 is a process of setting a list of frequencies having good reception conditions detected in step 304 as an FM supplementary broadcast frequency list, and FIG. Step 412 of the FM supplementary broadcast switching process is performed by displaying and displaying a list of FM supplementary broadcast frequencies registered in the FM supplementary broadcast frequency list as, for example, an FM supplementary broadcast channel selection screen as shown in FIG. 6A. The processing to switch the broadcast to be received and output to the FM complement broadcast of the broadcast frequency selected by the user from the list may be performed. In addition, on the FM supplementary broadcast channel selection screen of FIG. 6A, the channel selection button 61 corresponding to each broadcast frequency registered in the FM supplementary broadcast frequency list is set to the broadcast frequency corresponding to each FM complement broadcast channel selection button 61. Are displayed in an array in the form of. Then, in response to the operation of the FM supplementary broadcast channel selection button 61 on the FM supplementary broadcast channel selection screen, the control device 3 changes the FM complement broadcast of the broadcast frequency corresponding to the operated FM complement broadcast channel selection button 61. Switch the broadcast to be received and output.

  Further, in the above embodiment, the reception state of the broadcast frequency of the FM supplementary broadcast which is related to the AM broadcast and the simulcast is detected only for the AM broadcast being received and output. The broadcast frequency of each FM complementary broadcast that is related to each AM broadcast registered in the AM channel selection candidate list and the simulcast obtained by referring to the FM complementary broadcast data during a period in which the FM complementary broadcast is not received and output. May be repeated using the FM receiving unit 12 operated in the background.

  In this case, as shown in FIG. 6B, on the above-mentioned AM broadcast channel selection reception screen, the right side of the channel selection button 51 corresponding to the AM broadcast where the FM complementary broadcast with a good reception state exists exists. In addition to displaying the FM complement buttons 52 associated with the broadcast frequencies of the FM broadcasts having a good reception state among the FM complementary broadcasts in the relationship between the AM broadcast and the simulcast broadcasts, The reception and output of the FM complement broadcast of the broadcast frequency associated with the FM complement button 52 may be started.

  As described above, for the AM broadcast channel selection button 51 displayed on the AM broadcast channel selection reception screen for receiving the AM broadcast channel selection from the user, the FM complementary broadcast having the relationship of the AM broadcast simulcast is displayed. When the FM complement button 52 is available, the FM complement button 52 indicating that there is an available FM supplement broadcast is displayed in association with the display of the AM broadcast, and the FM complement button 52 is operated in accordance with the operation of the FM complement button 52. By starting the reception output of the broadcast, the user can identify the AM broadcast that can use the FM complement broadcast from the display of the FM complement button 52 on the AM broadcast channel selection reception screen, and replaces the desired AM broadcast with the desired AM broadcast. If the user wishes to use the FM supplementary broadcast which has a relationship between the AM broadcast and the simultaneous broadcast, the user only needs to operate the FM complement button 52 to use the FM supplementary broadcast. It becomes possible to start.

  Further, the above embodiment has been described by taking as an example an application to an in-vehicle device including the navigation device 2 and the radio receiving device 1. However, the technology for supporting the use of the FM supplementary broadcasting shown in the present embodiment is a radio. The present invention is similarly applicable to the receiving device 1 or any system including the radio receiving device 1.

  Further, in this case, when the present invention is applied to the radio receiver 1 having a small display device 4 or a system including the radio receiver 1, it is necessary to be able to use the FM complement broadcast of the AM broadcast being received and output. The indicated display and the reception of the user's FM supplementary broadcast switching operation may be performed as shown in FIGS. 5c1 and c2.

  That is, a plurality of hard keys 53 are provided below the screen of the display device 4, and the identification of an operation accepted by the hard keys 53 below the hard keys 53 is displayed at a position above each hard key 53 at the bottom of the screen of the display device 4. To do.

  If the FM complement broadcast presence flag is not set for one hard key 53a during the reception and output of the AM broadcast, the operation with the hard key 53a is not accepted. If the FM complement broadcast flag is set while the AM broadcast is being received and output, the FM complement broadcast can be used by displaying an indication 54 such as "FM complement" on the hard key 53a. In addition to this, the reception of the FM supplementary broadcast switching operation by the user is performed according to the operation of the hard key 53a. In this case, during the reception and output of the FM supplementary broadcast, “AM switching” or the like is displayed on one of the hard keys 53a described above, and the user's operation is performed in response to the operation of the hard key 53. A simultaneous AM broadcast switching operation is received.

  Alternatively, a hard key for accepting the FM complementary broadcast switching operation and an indicator such as an LED that indicates whether the hard key 53 is enabled / disabled by turning on / off are provided, and the FM complementary broadcast presence flag is set during reception output of the AM broadcast. Only when this is done, the indicator may be turned on and the operation of the hard key may be accepted as the FM supplementary broadcast switching operation. In this case, the reception of the simultaneous AM broadcast switching operation by the user is performed, for example, by operating a hard key for receiving the FM complementary broadcast switching operation during the reception and output of the FM complementary broadcast.

  Although the case where the AM broadcast and the FM supplementary broadcast are received by the radio receiving device 1 has been described above, the AM broadcast in the present embodiment is changed to a first type broadcast that is a broadcast of an arbitrary first broadcast standard. FM broadcast is referred to as a second type broadcast which is a broadcast of a second broadcast standard which is an arbitrary broadcast standard different from the first broadcast standard, and an FM supplementary broadcast is referred to as a second type broadcast which is related to the first type broadcast and simulcast. Simultaneous type 2 broadcasting, which is a type 2 broadcasting, can be applied instead.

  DESCRIPTION OF SYMBOLS 1 ... Radio receiving apparatus, 2 ... Navigation apparatus, 3 ... Control apparatus, 4 ... Display apparatus, 5 ... Audio output apparatus, 6 ... Input apparatus, 7 ... Storage apparatus, 8 ... Speaker, 11 ... AM receiving part, 12 ... FM Receiving unit, 13: selector, 14: controller, 51: tuning button, 52: FM complement button, 53: hard key, 111: AM front end, 112: AM demodulation unit, 121: FM front end, 122: FM demodulation Department.

Claims (9)

A radio receiving apparatus for receiving an AM broadcast and an FM broadcast,
An AM receiver for receiving an AM broadcast;
An FM receiver for receiving an FM broadcast;
Audio output means for selectively outputting one of the audio of the AM broadcast received by the AM receiver and the audio of the FM broadcast received by the FM receiver;
Storage means for storing, for each AM broadcast, FM supplementary broadcast information in which a broadcast frequency of an FM supplementary broadcast that is an FM broadcast having a relationship between the AM broadcast and the simultaneous broadcast is registered;
When the audio output unit is outputting the audio of the AM broadcast received by the AM receiving unit, the FM supplementary broadcast information is output regardless of whether the AM broadcast receiving state of the AM receiving unit is good or not. The FM reception unit checks the reception status of the FM complement broadcast of the broadcast frequency registered for the AM broadcast received by the AM reception unit using the FM reception unit, and the reception status is a good FM complement broadcast. When an available FM supplementary broadcast is present , regardless of whether the AM broadcast receiving state of the AM receiving unit is good or not, the fact that there is an available FM supplementary broadcast is always presented to the user and a predetermined In response to the user operation, the reception of the available FM complementary broadcast by the FM receiving unit and the switching of the audio output by the audio output unit to the audio of the FM broadcast received by the FM receiving unit are controlled. Radio receiving apparatus characterized by having an FM complement broadcast utilization support means. The radio receiving device according to claim 1,
Equipped with a display device,
A radio receiving apparatus, wherein the FM supplementary broadcast use support means displays a predetermined display object on the display device as presentation to the user that the available FM supplementary broadcast exists. The radio receiving apparatus according to claim 2,
A radio receiving apparatus, wherein the FM supplementary broadcast use support means receives a user operation on the display object as the predetermined user operation . The radio receiving apparatus according to claim 1, 2 or 3,
When there are a plurality of available FM supplementary broadcasts, the FM supplementary broadcast use support means has determined that the reception state is the best among the plurality of available FM supplementary broadcasts in accordance with the predetermined user operation. Radio reception, wherein the reception of the available FM supplementary broadcast by the FM receiver and the switching of the audio output from the audio output unit to the audio of the FM broadcast received by the FM receiver are controlled. apparatus. The radio receiving device according to claim 1,
Equipped with a display device,
When there are a plurality of available FM supplementary broadcasts, the FM supplementary broadcast use support means displays a list of broadcast frequencies of the available FM supplementary broadcasts on the display device according to the predetermined user operation. Receiving the selection of the broadcast frequency by the user on the list, receiving the FM reception unit of the available FM supplementary broadcast of the selected broadcast frequency, and receiving the audio output by the audio output unit. A radio receiving apparatus for controlling switching to FM broadcast audio received by the user. A radio receiving apparatus for receiving an AM broadcast and an FM broadcast,
A display device;
An AM receiver for receiving an AM broadcast;
An FM receiver for receiving an FM broadcast;
Audio output means for selectively outputting one of the audio of the AM broadcast received by the AM receiver and the audio of the FM broadcast received by the FM receiver;
Storage means for storing, for each AM broadcast, FM supplementary broadcast information in which a broadcast frequency of an FM supplementary broadcast that is an FM broadcast having a relationship between the AM broadcast and the simultaneous broadcast is registered;
A tuning reception screen showing a list of AM broadcasts is displayed on the display device, a selection of an AM broadcast by a user on the list of the tuning reception screen is accepted, and the AM receiving unit of the AM broadcast having accepted the selection is displayed. Receiving, and AM broadcast selecting means for controlling switching of the sound output by the sound output means to the sound of the AM broadcast received by the AM receiving unit,
For each AM broadcast included in the list displayed by the AM broadcast tuning means, the reception status of the FM supplementary broadcast of the broadcast frequency registered for the AM broadcast in the FM supplementary broadcast information using the FM receiving unit. FM supplementary broadcast search means for setting the FM supplementary broadcast having a good reception state as an available FM supplementary broadcast for the AM broadcast,
The AM broadcast tuning means associates each of the displayed AM broadcasts in the list with the available FM complement broadcast with the available FM complement broadcast set for the AM broadcast. Including the associated display object in the tuning reception screen and, in response to a user operation on the display object, receiving the available FM supplementary broadcast associated with the display object by the FM receiving unit; A radio receiving apparatus for controlling switching of audio output from an audio output unit to audio of an FM broadcast received by the FM receiving unit. A radio receiving apparatus for receiving a first type broadcast that is a broadcast of a first broadcast standard and a second type broadcast that is a broadcast of a second broadcast standard that is a broadcast standard different from the first broadcast standard,
A first type broadcast receiving unit that receives the first type broadcast;
A second type broadcast receiving unit that receives the second type broadcast;
One of a second type broadcast audio received by the second type broadcast receiver and a second type broadcast audio received by the second type broadcast receiver is selectively output. Audio output means for
Storage means for storing, for each first type broadcast, simul type 2 broadcast information in which a broadcast frequency of a simul type 2 broadcast which is a second type broadcast having a relation between the first type broadcast and the simulcast is registered ,
When the audio output unit is outputting the audio of the first type broadcast received by the first type broadcast receiving unit, the reception status of the first type broadcast of the first type broadcast receiving unit is good or bad. Regardless of the simulcast type 2 broadcast information, the reception status of the simulcast type 2 broadcast of the broadcast frequency registered for the type 1 broadcast being received by the type 1 broadcast receiving unit is the Investigation is performed using the type 2 broadcast receiving unit, and if there is an available simul type 2 broadcast that is a simul type 2 broadcast with a good reception state, the type 1 broadcast of the type 1 broadcast receiving unit Irrespective of the quality of the reception status, the presenter always presents to the user that there is an available simulcast type 2 broadcast, and according to a predetermined user operation, the available simulcast type 2 broadcast Reception of the type 2 broadcast receiver and the sound output Means radio receiving apparatus characterized by having a simultaneous second type broadcast utilization support means for controlling the switching of the second type broadcast sound the second type broadcast receiver of the voice is receiving the outputs. A radio receiving apparatus for receiving a first type broadcast that is a broadcast of a first broadcast standard and a second type broadcast that is a broadcast of a second broadcast standard that is a broadcast standard different from the first broadcast standard,
A display device;
A first type broadcast receiving unit that receives the first type broadcast;
A second type broadcast receiving unit that receives the second type broadcast;
One of a second type broadcast audio received by the second type broadcast receiver and a second type broadcast audio received by the second type broadcast receiver is selectively output. Audio output means for
Storage means for storing, for each first type broadcast, simul type 2 broadcast information in which a broadcast frequency of a simul type 2 broadcast which is a second type broadcast having a relation between the first type broadcast and the simulcast is registered ,
A tuning reception screen showing a list of the first type broadcast is displayed on the display device, a selection of the first type broadcast by the user is received on the list of the tuning reception screen, The first type broadcast that controls the reception of the first type broadcast that has received the selection and the switching of the audio output by the audio output unit to the first type broadcast audio that is received by the first type broadcast receiver. Channel selection means,
For each type 1 broadcast included in the list displayed by the type 1 broadcast channel selecting means, the simul type 2 broadcast of the broadcast frequency registered for the type 1 broadcast in the simulcast type 2 broadcast information , Using the second type broadcast receiving unit to check the reception status of the first type broadcast, and setting the simultaneous second type broadcast having a good reception state as the available simultaneous second type broadcast for the first type broadcast. Broadcast search means,
The first type broadcasting channel selecting means is set for the first type broadcasting in association with each of the displays in the list of the first type broadcasting in which the available simultaneous second type broadcasting is set. The display object associated with the available simulcast type 2 broadcast is included in the channel selection reception screen, and the available simulcast second information associated with the display object in response to a user operation on the display object. Controlling the reception of the seed broadcast by the second broadcast receiver and the switching of the audio output by the audio output means to the second broadcast audio received by the second broadcast receiver. Radio receiver. The radio receiving apparatus according to claim 1, 2, 3, 4, 5, 6, 7, or 8,
The radio receiving device is mounted on a mobile object.