JP2019033367A - Radio broadcast receiver - Google Patents

Abstract

To provide a "radio broadcast receiver" which resets registration of broadcast, becoming non-receipt temporarily, as receivable broadcast quickly.SOLUTION: Frequency and PI of receivable broadcast are investigated, and registered in a station list as station information. When deterioration of electromagnetic wave reception environment is detected, the station list (a) immediately before detection value is saved as an evacuation list. Thereafter, when n pieces of station information are added to the station list (d1), investigation is made whether the added station information is entirely registered in the evacuation list, and when it is entirely registered, reception quality of frequency channel of the frequency registered in each registered evacuation list is investigated without acquiring PI from that frequency channel, and the station information of frequency of good reception quality is registered in the station list (e).SELECTED DRAWING: Figure 7

Description

  The present invention relates to a technique for searching for a receivable broadcast in a radio broadcast receiving apparatus.

  As a technique for searching for a broadcast that can be received by a radio broadcast receiver, radio broadcasts in which RDS (Radio Data System) data including PI (Program Identification) indicating program service identification is multiplexed and broadcast are used. In the receiving radio broadcast receiving device, a frequency channel whose received electric field strength is larger than a predetermined threshold is searched as a receivable frequency channel, and a table in which the frequency channel searched and the PI acquired from the frequency channel are registered The technique to create is known (for example, patent document 1).

  Here, with this technology, when entering an area in which radio wave reception is difficult, the frequency and PI of each broadcast registered in the table are maintained until the radio wave is left out of the area where radio wave reception is difficult. The received electric field strength of the frequency channel of each broadcast frequency registered in is monitored without acquiring the PI from the frequency channel, and the received electric field strength registered in the table is greater than a predetermined threshold value. Channel broadcast frequency and PI are treated as receivable broadcast frequency and PI, and the frequency and PI of frequency channels whose received electric field strength is not greater than the predetermined threshold are calculated. Treat as. If the user leaves the area where radio wave reception is difficult, the broadcast frequency and PI of the frequency channel whose received electric field strength registered in the table is not greater than a predetermined threshold are deleted.

  According to such technology, when a broadcast that has temporarily become unreceivable due to entering an area where radio waves are difficult to receive, such as in an underground parking lot or tunnel, is changed to a state where the broadcast can be received. As a receivable broadcast, it is possible to quickly return to the table.

JP 2013-175967 A

  The determination of whether or not to receive a broadcast of the frequency and PI registered in the table when entering the area where radio wave reception is difficult as described above is based only on the received electric field strength of the frequency channel of the broadcast without acquiring the PI. According to the technique of determining and treating the broadcast frequency and PI as the receivable broadcast frequency and PI, the following problems may occur.

That is, when it becomes difficult to receive radio waves due to entering a long tunnel, different broadcasts may be received at the same frequency at the entrance and exit of the tunnel.
In this case, according to the above-described technique, the frequency and PI of the broadcast can be received only by checking the reception electric field strength of the frequency channel of each broadcast frequency registered in the table when entering the tunnel. Since it is handled as a frequency and PI of a broadcast, an incorrect PI is registered in the table as a receivable PI when leaving the tunnel.

  Specifically, for example, only broadcast A can be received as a frequency channel broadcast of frequency a at the entrance of the tunnel, and only broadcast B can be received as a broadcast of frequency a at the entrance of the tunnel. When the broadcast B becomes receivable at the exit of the tunnel, the table shows that the PI of the broadcast A is not the PI of the broadcast B that can be received at the frequency a as the PI of the broadcast of the frequency a. Will be registered.

  Thus, the present invention has an object to promptly and more appropriately restore registration of a broadcast that can be received temporarily as a receivable broadcast when the broadcast that has become temporarily unreceivable transitions to a receivable state. And

  In order to achieve the above object, the present invention provides a radio broadcast receiving apparatus for receiving a broadcast in which data including program identification information transmitted using a frequency channel and multiplexed with audio is received. Receiving and outputting means for outputting the sound received in the station, station list in which station information including frequency and program identification information is registered, searching for a frequency channel with good reception quality, and program identification information from the searched frequency channel broadcast Is registered in the station list as the station information, and the station information including the frequency of the frequency channel with poor reception quality is registered. Station information registration means to be deleted from the station list and broadcast radio wave reception environment A save list storing means for saving, as a save list, a list in which each station information registered in the station list immediately before the detection is detected as a save list when detecting deterioration of a broadcast radio wave reception environment; Of the station information registered in the station list, when the list storage means detects an improvement in the broadcast radio wave reception environment after detecting the broadcast radio wave reception environment deterioration, The save list storing means checks whether all the station information registered in the station list after detecting the deterioration of the broadcast radio wave reception environment is registered in the saved save list. The station list registered in the save list is at least the station list. For each station information not registered in the station information, it is checked whether the reception quality of the frequency channel of the frequency included in the station information is good, and if it is good, the station information is registered in the station list. Information return means.

  According to such a radio broadcast receiving apparatus, when the broadcast radio wave reception environment is improved after the broadcast radio wave reception environment is deteriorated, there is no difference between broadcasts that can be received immediately before the broadcast radio wave reception environment deteriorates and at the present time. Of the station information registered in the station list, all the station information registered in the station list after detecting the deterioration of the broadcast radio wave reception environment is the station before the deterioration of the broadcast radio wave reception environment. If the station information of the list is estimated based on whether it is registered in the registered save list and it can be estimated that there is no difference, the frequency channel of the frequency registered in each station information registered in the save list The reception quality is investigated without acquiring the program identification information from the frequency channel, and the reception quality is To register the station information of good frequency to the station list.

Therefore, the broadcast radio wave reception environment deteriorates due to the entry to an area where radio wave reception is difficult, and the station information of each broadcast that has become temporarily unavailable is registered in the station list, that is, temporarily unavailable. The broadcast station information is quickly returned to the station list when the broadcast wave reception environment is restored.
Here, even if broadcasts with different program identification information are broadcast on the same frequency channel immediately before the broadcast radio wave reception environment deteriorates and when the broadcast radio wave reception environment is improved, the station information of both broadcasts is Because it is different, it is not presumed that there is no difference between the broadcast that can be received immediately before the broadcast radio wave reception environment deteriorates and the broadcast station information that can be received immediately before the broadcast radio wave reception environment deteriorates and cannot be received at present. Is not erroneously restored from the save list to the station list.

Therefore, when the broadcast that has become temporarily unreceivable transitions to a receivable state, it is possible to properly restore registration of the station list of the broadcast.
In order to achieve the above object, the present invention receives a broadcast to a radio broadcast receiving apparatus that receives a broadcast in which data including program identification information transmitted using a frequency channel is multiplexed with sound, Receiving output means for outputting sound received by the broadcast, a station list in which station information including frequency and program identification information is registered, a frequency channel with good reception quality is searched, and a program is broadcast from the searched frequency channel broadcast. Station information including the frequency of the frequency channel for which the identification information is acquired and the frequency of the searched frequency channel and the program identification information acquired from the broadcast of the frequency channel are registered in the station list as the station information. Station information registration means for deleting A save list storing means for detecting a deterioration of the reception environment and detecting a deterioration of the reception environment of the broadcast radio wave, and storing a list in which each station information registered in the station list immediately before the detection is stored as a save list; Station information registered in the station list when the save list detection means detects improvement in the reception environment of the broadcast radio wave after detecting the deterioration of the reception environment of the broadcast radio wave, and the reception environment of the broadcast radio wave is improved. Of these, after all the station information registered in the station list after detecting the reception environment deterioration of the broadcast radio wave is detected by the save list saving means, it is checked whether the save list is registered. The station information registered in the save list, at least the station Each station information which is not registered in Nrisuto is obtained a station information returning means for registering the station list.

  According to such a radio broadcast receiving apparatus, when the broadcast radio wave reception environment is improved after the broadcast radio wave reception environment is deteriorated, there is no difference between broadcasts that can be received immediately before the broadcast radio wave reception environment deteriorates and at the present time. Of the station information registered in the station list, all the station information registered in the station list after detecting the deterioration of the broadcast radio wave reception environment is the station before the deterioration of the broadcast radio wave reception environment. If the station information of the list is estimated from whether or not it is registered in the registered save list, and it can be estimated that there is no difference, each station information registered in the save list is registered in the station list.

Therefore, the broadcast radio wave reception environment deteriorates due to the entry to an area where radio wave reception is difficult, and the station information of each broadcast that has become temporarily unavailable is registered in the station list, that is, temporarily unavailable. The broadcast station information is quickly returned to the station list when the broadcast wave reception environment is restored.
Here, even if broadcasts with different program identification information are broadcast on the same frequency channel immediately before the broadcast radio wave reception environment deteriorates and when the broadcast radio wave reception environment is improved, the station information of both broadcasts is Because it is different, it is not presumed that there is no difference between the broadcast that can be received immediately before the broadcast radio wave reception environment deteriorates and the broadcast station information that can be received immediately before the broadcast radio wave reception environment deteriorates and cannot be received at present. Is not erroneously restored from the save list to the station list.

Therefore, when the broadcast that has become temporarily unreceivable transitions to a receivable state, it is possible to properly restore registration of the station list of the broadcast.
Here, the radio broadcast receiving apparatus as described above detects the deterioration of the reception environment of the broadcast radio wave when the number of registered station information in the station list changes in a decreasing direction more than a predetermined level in the save list storage unit. You may comprise.

  In the radio broadcast receiving apparatus, the station information return means detects a predetermined number of pieces of station information registered in the station list after the save list storage means detects deterioration of the broadcast radio wave reception environment. The broadcast radio wave reception environment may be improved.

  In the radio broadcast receiving apparatus described above, the broadcast is an FM broadcast in which data is multiplexed into sound by RDS (Radio Data System), and the program identification information is data multiplexed in the FM broadcast. PI (Program Identification) included in

Further, in the radio broadcast receiving apparatus described above, in response to the user's selection of a broadcast whose station information is registered in the station list, the reception output means registers the selected broadcast in the station list. There may be provided reception control means for starting the reception of the frequency channel of the frequency included in the station information and the output of the sound received by the frequency channel.
Moreover, the above radio broadcast receiving apparatus may be an in-vehicle radio broadcast receiving apparatus mounted on an automobile.

  As described above, according to the present invention, when a broadcast that has been temporarily unreceivable transitions to a receivable state, the registration of the broadcast as a receivable broadcast can be promptly and more appropriately restored. Can be done.

It is a block diagram which shows the structure of the radio broadcast receiver which concerns on embodiment of this invention. It is a figure which shows the station list stored in the memory of the radio broadcast receiver which concerns on embodiment of this invention. It is a figure which shows the example of a display of the radio broadcast receiver which concerns on embodiment of this invention. It is a flowchart which shows the station registration operation | movement control process which concerns on embodiment of this invention. It is a flowchart which shows the station registration process which concerns on embodiment of this invention. It is a flowchart which shows the station return process which concerns on embodiment of this invention. It is a figure which shows the operation example of the radio broadcast receiver which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described.
FIG. 1 shows a configuration of a radio broadcast receiving apparatus according to this embodiment.
Here, the radio broadcast receiving apparatus according to the present embodiment is a radio broadcast receiving apparatus whose position varies, such as a car radio mounted on a car or a portable radio receiver.
As shown in the figure, the radio broadcast receiving apparatus includes two receiving units 1, a selector 2, an audio signal processing unit 3, a speaker 4, a control unit 5, a memory 6, an operation unit 7, and a display unit 8.

  Each of the two receiving units 1 is a receiving device that receives an FM broadcast in which data is multiplexed into audio by RDS (Radio Data System). Each receiving unit 1 includes an antenna 11, a tuner 12, It is made up of. The tuner 12 of each receiver 1 includes an FM front end 121 (FM F / E 121), an FM demodulator 122, and an RDS decoder 123.

  In each tuner 12, the FM front end 121 receives a frequency channel having a frequency set as a reception frequency from the control unit 5, and sends a reception signal to the FM demodulation unit 122. The signal is demodulated and sent to the selector 2. Also, when the received signal includes a data signal that is multiplexed and transmitted with an audio signal by RDS (Radio Data System), the FM demodulator 122 sends the data signal to the RDS decoder 123 to send it to the RDS decoder. 123 decodes the data from the data signal and sends it to the controller 5. Here, the data sent from the RDS decoder 123 to the control unit 5 includes PI (Program Identification) serving as an identifier of a program (program) broadcast on the frequency channel of the set reception frequency, and the program (program) ) Genre of PTY (Program Type), AF that is a list of alternative frequencies that are frequencies of other FM broadcasts that broadcast programs of the same PI as the program, and the frequency channel of the set reception frequency PS (Program Service) indicating the name of the broadcasting station that is broadcasting is included.

  Further, in each tuner 12, the FM front end 121 calculates and controls the reception quality Qr of the FM broadcast of the frequency channel of the set reception frequency from the reception electric field strength and the SN ratio of the frequency channel of the set reception frequency. Notify unit 5.

  Here, the control unit 5 uses the tuner 12 of one of the two receiving units 1 as the foreground tuner, the tuner 12 of the other receiving unit 1 as the background tuner, and uses the forerground tuner as the selector 2. The audio signal input from the FM demodulator 122 is output to the audio signal processor 3. The audio treatment unit adjusts and amplifies the frequency characteristics of the audio signal input from the selector 2 and outputs the result to the speaker 4.

Next, in the present embodiment, the memory 6 stores a station list.
The station list is a list in which currently receivable frequency channels are registered. As shown in FIG. 2, the station list has entries (corresponding to each row) provided for each of the currently receivable frequency channels. The frequency of broadcasting of the frequency channel corresponding to each entry, PI, PS, etc. are registered as station information.

Here, the operation of registering station information in the station list will be described later.
In the configuration of such a radio broadcast receiving apparatus, the control unit 5 displays a list of broadcast station frequencies and PSs (broadcast station names) registered in the station list on the display unit 8, as shown in FIG. The frequency received and received by the foreground tuner by receiving the selection of the broadcasting station from the user list via the operation unit 7 and setting the frequency of the broadcasting station that has received the selection as the reception frequency in the foreground tuner. Perform processing such as switching channels.

The operation for registering frequency channels in the station list will be described below.
When the radio broadcast receiving apparatus is activated, the control unit 5 performs a station registration operation control process.
FIG. 4 shows the procedure of the station registration operation control process.
As shown in the figure, in the station registration operation control process, the controller 5 first starts a station list registration process (step 402).
FIG. 5 shows the procedure of the station list registration process.
As shown in the figure, in the station list registration process, the control unit 5 first sets the reception frequency Fr of the background tuner to the minimum frequency in the frequency range where FM broadcasting can be performed (step 502).

Then, the reception quality Qr of the frequency channel of the reception frequency Fr is acquired from the background tuner (step 504).
Then, it is checked whether or not the reception quality Qr is better than a predetermined threshold value Th (step 506). If not better, the process proceeds to step 514.
Here, the value of the threshold value Th is set to a value that can guarantee that the sound received by the frequency channel can be satisfactorily output if the reception quality is a frequency channel better than the threshold value Th.

  On the other hand, if the reception quality Qr is better than the threshold value Th (step 506), the PI, PS, etc. received on the frequency channel of the reception frequency Fr are acquired from the RDS decoder 123 of the background tuner (step 508). . Here, it takes a relatively long time to acquire PI, PS, and the like from the frequency channel.

  Then, a new entry is created in the station list, and the received frequencies Fr, PI, PS, etc. are registered as station information in the created entry (step 510). Then, the process proceeds to step 512.

  When the process proceeds to step 512, the reception quality of each frequency channel of each station information registered in the station list is checked by receiving each frequency channel and the reception quality is a threshold value. The station information entry including the frequency not better than Th is deleted from the station list. Then, the process proceeds to step 514.

  Next, if the process proceeds from step 506 or step 512 to step 514 as described above, the reception frequency Fr at which the reception quality Qr was acquired in the previous step 504 is the maximum frequency in the frequency range where FM broadcasting can be performed. (Step 514), and if it is the maximum frequency, the processing returns to step 502.

  On the other hand, when the reception frequency Fr is not the maximum frequency in the frequency range where FM broadcasting can be performed (step 514), the minimum frequency interval (for example, 100 kHz) between frequency channels where FM broadcasting can be performed is set as one step. The reception frequency Fr set in the background tuner is increased by one step (step 516), and the processing returns to step 504.

The station list registration process started by the control unit 5 in step 402 of the station registration operation control process has been described above.
Returning to FIG. 4, when such a station list registration process is started (step 402), the control unit 5 monitors the occurrence of deterioration of the radio wave reception environment (step 404). Here, detection of deterioration of the radio wave reception environment is performed, for example, when the number of pieces of station information registered in the station list decreases more than a predetermined number during a predetermined unit period. This is done by detecting.

  If the radio wave reception environment deteriorates (step 404), the station list immediately before the radio wave reception environment deteriorates is saved and stored in the memory 6 (step 406). Here, the control unit 5 holds the station list at each time point as a history of the station list for a certain period. In step 406, the reception environment of the radio wave detected in step 404, which is held as the history of the station list. The station list immediately before the occurrence of deterioration, that is, immediately before the number of station information registered in the station list decreases more than a predetermined number during a predetermined unit period is saved as a save list.

  Then, if the save list is stored in the memory 6 (step 406), it is then waited for n (for example, 3) station information to be added to the station list (step 408). Here, the occurrence of n additions of station information to the station list represents the recovery of the radio wave reception environment.

  When n pieces of station information are added to the station list (step 408), it is checked whether all of the added n pieces of station information are registered in the save list (step 410). If not registered, the process returns to step 404.

  On the other hand, if all of the added n station information is registered in the save list (step 410), the execution of the station registration process shown in FIG. 5 is stopped (step 412), and the station is restored. The process is executed (step 414), and when the station return process is completed, the execution of the station registration process is resumed (step 416), and the process returns from step 404.

Here, FIG. 6 shows the procedure of the station return process executed in step 414.
As shown in the figure, in the station return process, the control unit 5 sequentially sets each station information registered in the save list as processing target station information (steps 602, 614, 616). Process.

  That is, first, it is checked whether or not the same station information as the current processing target information in the save list is registered in the station list (step 604). Exit.

  On the other hand, when the same station information as the current processing target information in the save list is not registered in the station list (step 604), the reception frequency Fr of the background tuner is set to the current target processing target in the save list. The frequency registered in the information is set (step 606).

Then, the reception quality Qr of the frequency channel of the reception frequency Fr is acquired from the background tuner (step 608).
Then, it is checked whether or not the reception quality Qr is better than the threshold value Th (step 610). If it is not good, the process for the station information to be processed this time is terminated.

  On the other hand, if the reception quality Qr is better than the threshold value Th (step 610), a new entry is created in the station list, and the station information to be processed this time is registered in the created entry in the station list. (Step 612). Then, the process for the station information targeted for processing this time is terminated.

The station registration operation control process performed by the control unit 5 has been described above.
Hereinafter, an operation example when the reception environment of the broadcast wave is deteriorated by such a station registration operation control process will be described.
Currently, the reception environment of broadcast radio waves is good, and registration of station information of m receivable broadcasts to the station list by station registration processing accompanied by acquisition of PI etc., and station information of station information that has become unreceivable from the station list As a result of the deletion, it is assumed that 16 pieces of station information are registered in the station list as shown in FIG. In this state, when a car enters an area where radio waves are difficult to receive, such as tunnels and underground parking lots, the station registration process rapidly reduces station information in the station list and detects deterioration of the radio wave reception environment. Then, the station list of FIG. 7a immediately before detection is saved as a save list shown in FIG. 7b.

  Then, after the station information registered in the station list is reduced to two station information as shown in FIG. 7c, the car exits from the area where radio wave reception is difficult, and the station registration process results in the station list. When n pieces of station information are added, it is determined whether all of the added n pieces of station information are registered in the save list shown in FIG. 7b.

  That is, when n is 3, after the station information registered in the station list is reduced to two pieces of station information as shown in FIG. When one station information is added and the number of station information registered in the station list becomes five, it is determined whether or not all the added three station information are registered in the save list shown in FIG. 7b. .

  Here, if the area where it is difficult to receive radio waves after leaving the car is an underground parking lot or a relatively short tunnel, it is difficult to receive the position of the car and the radio wave just before entering the area where radio waves are difficult to receive. Since the position where the user has left the area is not far away, there is no difference in the broadcasts that can be received at both positions. Therefore, in this case, as shown in FIG. 7d1, all three pieces of station information added to the station list are also registered in the save list. In other words, when all three pieces of station information added to the station list are registered in the save list, it can be estimated that there is no difference between the broadcast that can be received immediately before the radio wave reception environment deteriorates and at the present time.

  When all the three station information added to the station list is registered in the save list, the frequency channel of the frequency registered in each station information registered in the save list is received by the station return process. The quality is checked without acquiring PI or the like from the frequency channel, and station information of a frequency with good reception quality is registered in the station list as shown in FIG. 7e. As a result, the station information of each broadcast that was temporarily unavailable due to entry into an area where radio wave reception is difficult was registered in the station list, that is, the station list of the station information of the broadcast that was temporarily unavailable. The return to is completed quickly.

  Thereafter, registration of station information in the station list by station registration processing accompanying acquisition of PI and the like, and deletion of station information that has become unreceivable from the station list are continuously performed.

  On the other hand, if the area where it was difficult to receive the radio waves from which the car left was a relatively long tunnel, the location of the car immediately before entering the area where radio waves were difficult to receive and the area where radio waves were difficult to receive Since the positions are far apart, broadcasts that can be received at both positions may differ. Therefore, in this case, as shown in FIG. 7d2, there is a high probability that the three station information added to the station list includes station information that is not registered in the save list. In other words, when all of the three station information added to the station list are not registered in the save list, it can be determined that there is a difference between the broadcast that can be received immediately before the radio wave reception environment deteriorates. .

In this way, when it can be determined that there is a difference in the broadcast that can be received immediately before the radio wave reception environment deteriorates, the station information is not restored from the save list by the station restoration process, and the PI or the like Station registration processing with acquisition is continued.
Here, even if different broadcasts can be received at the same frequency between the position of the vehicle just before entering the area where radio waves are difficult to receive and the position where it has left the area where radio waves are difficult to receive, both broadcasts Since the PI values of are different, the station information is different. Therefore, even in this case, broadcast station information that has been received at the position of the vehicle immediately before entering the area where radio wave reception is difficult and cannot be received at this time will not be erroneously returned to the station list. .

The embodiment of the present invention has been described above.
In the above embodiment, the station return process shown in FIG. 6 is replaced with a process of registering station information not registered in the station list among station information registered in the save list in the station list. You may make it implement.

  In this way, when all the n station information added to the station list is registered in the save list, that is, there is no difference between the broadcast that can be received immediately before the radio wave reception environment deteriorates. Thus, it becomes possible to return the station information of the broadcast temporarily unavailable to the station list more quickly.

  DESCRIPTION OF SYMBOLS 1 ... Reception part, 2 ... Selector, 3 ... Audio signal processing part, 4 ... Speaker, 5 ... Control part, 6 ... Memory, 7 ... Operation part, 8 ... Display part, 11 ... Antenna, 12 ... Tuner, 121 ... Front End 122. Demodulator 123 123 RDS decoder

Claims (7)

A radio broadcast receiving apparatus for receiving a broadcast in which data including program identification information transmitted using a frequency channel is multiplexed with sound,
Receiving and outputting means for receiving a broadcast and outputting a sound received by the broadcast;
A station list in which station information including frequency and program identification information is registered;
Search for a frequency channel with good reception quality, acquire program identification information from the broadcast of the searched frequency channel, and use the frequency of the searched frequency channel and the program identification information acquired from the broadcast of the frequency channel as the station information. Station information registration means for registering in the list and deleting station information including frequencies of frequency channels with poor reception quality from the station list;
Save reception list that saves a list of station information registered in the station list immediately before the detection when the reception environment deterioration of the broadcast wave is detected and the reception environment deterioration of the broadcast wave is detected Means,
Station information registered in the station list when the save list detection means detects improvement in the reception environment of the broadcast radio wave after detecting the deterioration of the reception environment of the broadcast radio wave, and the reception environment of the broadcast radio wave is improved. Of these, after all the station information registered in the station list after detecting the reception environment deterioration of the broadcast radio wave is detected by the save list saving means, it is checked whether the save list is registered. If at least the station information registered in the save list is not registered in the station list, the reception quality of the frequency channel of the frequency included in the station information is good. If the station information is satisfactory, the station information is Radio broadcast receiving apparatus characterized by having a station information returning means for registering the Yonrisuto. A radio broadcast receiving apparatus for receiving a broadcast in which data including program identification information transmitted using a frequency channel is multiplexed with sound,
Receiving and outputting means for receiving a broadcast and outputting a sound received by the broadcast;
A station list in which station information including frequency and program identification information is registered;
Search for a frequency channel with good reception quality, acquire program identification information from the broadcast of the searched frequency channel, and use the frequency of the searched frequency channel and the program identification information acquired from the broadcast of the frequency channel as the station information. Station information registration means for registering in the list and deleting station information including frequencies of frequency channels with poor reception quality from the station list;
Save reception list that saves a list of station information registered in the station list immediately before the detection when the reception environment deterioration of the broadcast wave is detected and the reception environment deterioration of the broadcast wave is detected Means,
Station information registered in the station list when the save list detection means detects improvement in the reception environment of the broadcast radio wave after detecting the deterioration of the reception environment of the broadcast radio wave, and the reception environment of the broadcast radio wave is improved. Of these, after all the station information registered in the station list after detecting the reception environment deterioration of the broadcast radio wave is detected by the save list saving means, it is checked whether the save list is registered. A station information return means for registering at least each station information not registered in the station list among the station information registered in the save list when registered, in the station list. Broadcast receiving device. The radio broadcast receiver according to claim 1 or 2,
The save list storing means detects a reception environment deterioration of the broadcast radio wave when the number of registered station information in the station list is greatly decreased by a predetermined level or more. The radio broadcast receiver according to claim 1, 2, or 3,
The station information return means improves the broadcast radio wave reception environment when a predetermined number of pieces of station information are registered in the station list after the save list storage means detects deterioration of the broadcast radio wave reception environment. A radio broadcast receiving apparatus characterized by detecting. The radio broadcast receiver according to claim 1, 2, 3 or 4,
The broadcast is an FM broadcast in which data is multiplexed into audio by RDS (Radio Data System), and the program identification information is a PI (Program Identification) included in the data multiplexed in the FM broadcast. A radio broadcast receiver characterized by that. The radio broadcast receiver according to claim 1, 2, 3, 4 or 5,
In response to a user's selection of a broadcast whose station information is registered in the station list, a frequency channel of a frequency included in the station information registered in the station list of the selected broadcast is sent to the reception output means. A radio broadcast receiving apparatus comprising reception control means for starting reception and output of sound received by the frequency channel. The radio broadcast receiver according to claim 1, 2, 3, 4, 5 or 6,
The radio broadcast receiving apparatus is an in-vehicle radio broadcast receiving apparatus mounted on an automobile.