JP2017098814A - Broadcast receiver and broadcast reception control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide "a broadcast receiver and a broadcast reception control method" for following a service and performing diversity reception, while suppressing occurrence of interruption of reception using two reception systems.SOLUTION: In a DAB single reception mode, a reception object service is received by an active reception system, and DAB search for checking the reception quality of an alternative service is performed by a background reception system. When the reception quality of a service S1 being received by the active reception system deteriorates (T1) below a threshold Th1, presence or absence of a service S2 having a reception quality of level Qa or more is determined. Only when the service S2 is absent, the DAB diversity reception mode is reversed, and diversity reception using the active reception system and the background reception system is started. When the service S2 is present, a DAB single reception mode is maintained.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a technique for switching a broadcast service to be received from a broadcast service being received to a broadcast service that is broadcasting the same content as the broadcast service in a broadcast receiving apparatus.

  In a broadcast receiving device, DAB (Digital Audio Broadcasting) is received as a technique for switching a broadcast service to be received from a broadcast service being received to a broadcast service that is broadcasting the same content as the broadcast service. In such a radio broadcast receiving apparatus, a technique is known in which a broadcast service to be received is switched from a DAB service being received to a DAB service that broadcasts the same content as the DAB service (for example, a patent) Reference 1).

  Also, in a radio broadcast receiving apparatus that receives DAB and FM broadcast, the broadcast service to be received is switched from the DAB service being received to the FM broadcast station that is broadcasting the same content as the DAB service. Technology is also known (for example, Patent Document 2).

  As a technique for improving reception quality in a radio broadcast receiving apparatus, a technique of diversity reception based on an MRC (Maximum Ratio Combining) method is known (for example, Patent Documents 3 and 4). The MRC method basically synchronizes the phases of broadcast signals received by a receiving system corresponding to each antenna and performs weighting according to the reception level to synthesize the broadcast signals.

JP-A-10-200499 JP-A-11-340853 JP2015-29164A JP 2010-226233 A

  In a radio receiving apparatus having two receiving systems for receiving DAB, one receiving system is used for receiving a DAB service, and the other receiving system is broadcasting the same content as the receiving DAB service. DAB that is used to search for a DAB service and switches the DAB service to be received to another DAB service when another DAB service having a better reception state than the DAB service being received is found. It is possible to perform a follow operation.

  Also, in such a radio reception apparatus, when the reception quality of the DAB service being received deteriorates, diversity reception is performed using the two reception systems, and the reception quality of the DAB service being received is improved. It is possible to do.

  However, in this case, during the period of diversity reception based on the MRC method, it becomes impossible to search for a DAB service that is broadcasting the same content as the DAB service being received. The following problems occur that hinder the benefit of the DAB follow operation.

  In other words, during the period of diversity reception, even if another DAB service that is receiving the same content as the DAB service being received and that can be received in a better reception state occurs, The DAB service to be received cannot be switched to another DAB service.

  In this case, for example, after the diversity reception is terminated due to the reason that the DAB service cannot be normally received by the diversity reception, another DAB having a better reception state than the DAB service being received. The search for the service of the DAB is started, so that the reception of the DAB service is interrupted from the time when the diversity reception is completed until the discovery of the other DAB service.

  Therefore, the present invention has two receiving systems for receiving a broadcast service, one receiving system is used for receiving the broadcasting service, and the other receiving system is broadcasting the same content as the receiving broadcasting service. Use of a broadcast service follow operation in a broadcast reception apparatus that performs a broadcast service follow operation that switches a broadcast service to be received to another broadcast service that has a better reception state than a broadcast service that is being received while using the service search It is an object to perform diversity reception so as not to impair as much as possible.

  In order to achieve the above object, the present invention provides a broadcast receiving apparatus for receiving a broadcast, a first receiving system for receiving the broadcast, a second receiving system for receiving the broadcast, the first receiving system, A diversity reception unit that performs broadcast diversity reception using the second reception system, an output unit that outputs the content of the received broadcast, and a control unit. Here, the control unit has a first operation mode and a second operation mode as operation modes, and in the first operation mode, the control unit performs the first reception system and the second reception mode. One of the systems is the active receiving system and the other is the background receiving system, the active receiving system receives the broadcast to be received, and the output means outputs the contents of the broadcast received by the active receiving system, and the back The reception status of each broadcast that broadcasts the same content as the reception target broadcast is detected by the ground reception system, and the reception target broadcast is broadcasted with the same content as the broadcast at a predetermined opportunity. In the second operation mode, the control unit changes to any one of the good broadcasts, and the diversity reception unit uses the first reception system and the second reception system for the diversity reception unit. Receive Rutotomoni, to output the contents of the broadcast diversity reception unit receives the output means. Further, when the operation mode is the first operation mode, the control unit is configured to receive the background reception system when a reception state of a broadcast to be received in the active reception system is deteriorated from a predetermined first level. Is switched to the second operation mode when there is no alternative broadcast candidate that is broadcasting the same content as the reception target broadcast whose reception state is better than a predetermined second level. When the alternative broadcast candidate exists, the operation mode is maintained in the first operation mode.

  Here, in such a broadcast receiving apparatus, in the first operation mode, the control unit is the same as the reception target broadcast whose reception state is better than the reception state in the active reception system of the reception target broadcast. You may comprise so that the broadcast of a receiving object may be changed into the said alternative broadcast by the said predetermined opportunity that the alternative broadcast which is the broadcast which is broadcasting the content is detected by the said background receiving system.

  In the broadcast receiving apparatus, when the operation mode is in the second operation mode, the control unit has a case where the duration of the second operation mode has exceeded a predetermined time, and the diversity reception unit The operation mode may be switched to the first operation mode in at least one of the cases where the reception target broadcast cannot be normally received due to diversity reception.

In the broadcast receiving apparatus described above, the broadcast may be, for example, FM audio broadcast or digital audio broadcast.
According to the broadcast receiving apparatus as described above, two reception systems, a first reception system and a second reception system, are provided as reception systems for receiving broadcasts, and one of the reception systems is used to receive the broadcast to be received. Use the other reception system for searching for broadcasts that have the same content as the broadcast to be received, and set the reception target for other broadcasts with good reception status detected by the broadcast search at a predetermined opportunity In a broadcast receiving apparatus having a first operation mode for switching between broadcasts, when the reception state of the broadcast to be received is deteriorated from the first level during operation in the first operation mode, Only when the alternative broadcast candidate that is broadcasting the same content as the broadcast to be received that is better than the level is not detected, the mode changes to the second operation mode, and the first receiving system and the second receiving system Diversity reception using And, when the alternative broadcasting candidate has been detected, maintaining the first operation mode.

  Here, the alternative broadcast candidate can be a broadcast that can be expected to be a broadcast that can be satisfactorily received in the near future by appropriately setting the second level. Therefore, according to the present invention, when there is a broadcast that can be expected to be satisfactorily received in the near future, switching of the reception target broadcast to the broadcast when the reception state of the broadcast becomes favorable The standby can be performed in preference to the start of diversity reception. And by such operation, during the execution of diversity reception, it is possible to suppress the occurrence of the above-mentioned problems due to the occurrence of a broadcast with a good reception state broadcasting the same content as the reception target broadcast. Will be.

  As described above, according to the present invention, two receiving systems for receiving a broadcast service are provided, one receiving system is used for receiving the broadcasting service, and the other receiving system is used for broadcasting with the same content as the receiving broadcasting service. In a broadcast receiving apparatus that performs a broadcast service follow operation for switching a broadcast service to be received to another broadcast service having a better reception state than a broadcast service being received while searching for the broadcast service that is performing Diversity reception can be performed so as not to impair the benefit of the service follow operation as much as possible.

It is a block diagram which shows the structure of the radio broadcast receiver which concerns on embodiment of this invention. It is a flowchart which shows the mode switching process which concerns on embodiment of this invention. It is a figure which shows the example of reception operation | movement of the radio broadcast receiver in 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 receiver according to the present embodiment is a radio broadcast receiver in which the position of the radio broadcast receiver varies, such as a radio receiver or a portable radio receiver mounted on an automobile.
As illustrated, the radio broadcast receiver includes a first DAB tuner 1, a second DAB tuner 2, an FM tuner 3, an output selector 4, an amplifier 5, a speaker 6, a control unit 7, a display unit 8, and an operation unit 9. ing.

Here, the second DAB tuner 2 is a receiving unit that receives a radio broadcast according to the DAB broadcasting standard, and detects and receives a broadcast signal of a frequency channel on which a service set as a receiving service from the control unit 7 is broadcast. A DAB front end 21 that outputs as a signal, and a decoder 22 that decodes the audio signal of the reception service from the reception signal received by the DAB front end 21 and outputs the decoded signal to the output selector 4 are provided. Here, the decoder 22 also performs a process of extracting control information included in the received signal and sending it to the control unit 7.
In DAB, a plurality of audio broadcasts can be broadcast on one frequency channel, and one audio broadcast corresponds to one service.

  The first DAB tuner 1 is a receiving unit that receives a radio broadcast according to the DAB broadcasting standard, detects a broadcast signal of a frequency channel on which a service set as a receiving service from the control unit 7 is broadcast, and receives the received signal. As a DAB front end 11, a decoder 12, a diversity reception processing unit 13, and a selector 14. Then, the diversity reception processing unit 13 combines the reception signal output from the DAB front end 11 and the reception signal output from the DAB front end 21 of the second tuner based on the MRC method, and outputs the combined reception signal. . Then, the selector 14 outputs one of the reception signal output from the DAB front end 11 and the reception signal output from the diversity reception processing unit 13 to the decoder 12, and the decoder 12 receives the reception signal output from the selector 14. The audio signal of the reception service is decoded and output to the output selector 4. The decoder 12 also performs a process of extracting control information included in the received signal and sending it to the control unit 7.

  The FM tuner 3 is a receiving unit that receives radio broadcasts according to FM broadcast standards. The FM front end 31 and the FM front end 31 receive a frequency channel of a station set as a receiving station from the control unit 7. An FM demodulator 32 that demodulates the audio signal from the received signal and outputs it to the output selector 4; and an RDS decoder 33 that decodes the control information from the data signal multiplexed and transmitted to the audio signal and sends it to the controller 7. ing.

In FM broadcasting, one audio broadcast is performed on one frequency channel, and one audio broadcast corresponds to one station.
Then, the output selector 4 selects any one of the audio signals output from the first DAB tuner 1, the second DAB tuner 2, and the FM tuner 3 according to the control of the control unit 7, and outputs the selected audio signal to the amplifier 5. Is amplified and output to the speaker 6.

  Here, the DAB front end 11 and decoder 12 of the first DAB tuner 1 and the DAB front end 21 and decoder 22 of the second DAB tuner 2 are receiving DABs such as received electric field strength, SN ratio and received data error rate. The control unit 7 is notified of information related to the reception quality of the service. Further, the FM front end 31 of the FM tuner 3 notifies the control unit 7 of information related to the reception quality of the receiving station such as the received electric field strength and the SN ratio.

  Then, the control unit 7 determines the DAB service in which the first DAB tuner 1 and the second DAB tuner 2 are performing the reception operation based on the information related to the reception quality of the DAB service notified from the first DAB tuner 1 and the second DAB tuner 2. The reception quality of the FM broadcast station on which the FM tuner 3 is performing the reception operation is calculated from the information related to the reception quality of the FM broadcast notified from the FM front end 31 of the FM tuner 3.

  Next, in the control information sent from the decoder 12 of the first DAB tuner 1 and the decoder 22 of the second DAB tuner 2 to the control unit 7, an SID indicating the identification of the service being received and a program (program) having the same contents are broadcast. This includes service linking information and following information indicating the DAB service or FM broadcast station. Further, the FM tuner 3 includes, in the control information sent from the RDS decoder 33 to the control unit 7, a program identifier PI that is an identifier of a program (program) broadcasted from a station of the frequency channel being received, and a program having the same contents. AF indicating an FM broadcast station that broadcasts (program) is included.

  The control unit 7 then sends a DAB service that broadcasts the same content program based on these control information sent from the first DAB tuner 1, the second DAB tuner 2 and the FM tuner 3, and FM broadcasting. Identify the station.

  Now, such a radio broadcast receiving apparatus includes a DAB single reception mode, a DAB diversity reception mode, and an FM reception mode as operation modes controlled by the control unit 7.

  During the period when the DAB single reception mode is set, the control unit 7 sets one of the first DAB tuner 1 and the second DAB tuner 2 as the active tuner and the other as the background tuner, By setting the reception target service as the reception service, reception of the reception target service is performed, and the output selector 4 outputs the audio signal output from the current tuner to the speaker 6 via the amplifier 5. In addition, the control unit 7 cyclically sets a DAB service that broadcasts a program having the same content as the service to be received as a reception service in the background tuner, so that the program having the same content as the service to be received is set. A DAB search is performed to detect the reception quality of each DAB service being broadcast. In the DAB single reception mode, the selector 14 of the first DAB tuner 1 is set to output the reception signal output from the DAB front end 11 to the decoder 12.

  In addition, the control unit 7 broadcasts a program having the same content as the service being received by the current tuner by a DAB search using the background tuner during the period when the DAB single reception mode is set. If another service with better reception quality than the service being received is found, a DAB follow control operation for switching the service to be received to the other service found is performed. The DAB follow control operation may be performed by updating the reception service of the active tuner with another service that has been discovered, or after starting the reception of another service that has been discovered by the background tuner, The background tuner and the current tuner may be exchanged so that the output sound of the speaker 6 is seamlessly continuous before and after switching.

  Further, during the period when the DAB single reception mode is set, the control unit 7 cyclically sets the FM tuner 3 as a receiving station by using an FM broadcast station that broadcasts a program having the same content as the service to be received. Thus, an FM search is performed to detect the reception quality of each FM broadcast station that broadcasts a program having the same content as the service to be received.

  Next, during the period when the DAB diversity reception mode is set, the control unit 7 causes both the first DAB tuner 1 and the second DAB tuner 2 to receive the service to be received, and causes the selector 14 of the first DAB tuner 1 to receive it. Then, the reception signal output from the diversity reception processing unit 13 is output to the decoder 12, and the audio signal output from the first DAB tuner 1 is output to the speaker 6 via the amplifier 5 in the output selector 4. Diversity reception is performed.

  In addition, during the period when the DAB diversity reception mode is set, the control unit 7 performs the above-described FM search using the FM tuner 3.

  Next, during the period in which the FM reception mode is set, the control unit 7 causes the FM tuner 3 to receive the reception target station, and causes the output selector 4 to output the audio signal output from the FM tuner 3 to the amplifier 5. Through the speaker 6.

  During the period in which the FM reception mode is set, the control unit 7 sets the second DAB tuner 2 as a background tuner, and broadcasts a program having the same content as the reception target station using the background tuner. A DAB search for cyclically detecting the reception quality of each DAB service is performed.

  Hereinafter, a mode switching process performed by the control unit 7 in order to switch the operation mode will be described. Here, the mode switching process is started when an instruction to start broadcast reception is received from the user.

FIG. 2 shows the procedure of this mode switching process.
As shown in the figure, in this process, the DAB single reception mode is set (step 202), the service designated by the user or the service that was the last reception target is set as the reception target service, and the reception of the reception target service is performed. Is started (step 204).

  Then, the reception quality QCR of the service to be received in the above-described current tuner is monitored to be deteriorated from the predetermined threshold value Th1 (step 206). If the reception quality QCR is deteriorated from the predetermined threshold value Th1, It is checked whether there is an alternative DAB service candidate (step 208).

Here, the threshold value Th1 is set in advance to a value obtained by adding a predetermined margin to the reception quality at which the service cannot be normally received.
The alternative DAB service candidate is a DAB service that broadcasts a program having the same content as the reception target service in the current tuner, and the reception quality detected by the above-mentioned DAB search is level Qa or higher. It is a service. Further, as the value of the level Qa, a minimum value of the reception quality that can normally receive the service or a value close to the minimum value of the reception quality that can normally receive the service is set in advance.

If alternative DAB service candidates exist (step 208), the process returns to step 206.
On the other hand, if there is no alternative DAB service candidate, the operation mode is switched to the DAB diversity reception mode (step 210), and diversity reception of the reception target service received by the current tuner is started as described above.

  When diversity reception is started, the occurrence of a state in which the duration of the DAB diversity reception mode is T1 (for example, 240 seconds) or longer (step 212), and the reception target in the first DAB tuner 1 or the second DAB tuner 2 Occurrence of a state where the reception quality QCR of the service is better than a predetermined threshold Th0 (step 214), occurrence of a state where the reception quality QCR is less than the predetermined threshold Th3 (step 216), and reception quality QCR The occurrence of a state in which is less than a predetermined threshold value Th2 is monitored (step 218).

  Here, Th0> Th1> Th2> Th3, Th0 is the minimum value of the reception quality at which the service can be sufficiently satisfactorily received, and Th2 is the reception quality at which the reception of the service may be impaired even by the diversity reception. This is the highest value, and Th3 is the reception quality indicating that the service cannot be received.

  Then, when the duration of the DAB diversity reception mode is T1 (for example, 240 seconds) or longer (step 212), the reception quality QCR of the service to be received in the first DAB tuner 1 or the second DAB tuner 2 is a predetermined threshold. If either a state where the value is better than the value Th0 (step 214) or a state where the reception quality QCR is less than the predetermined threshold value Th3 (step 216) occurs, the operation mode is returned to the DAB single reception mode. (Step 226), the process returns to Step 206.

  On the other hand, when a situation occurs in which the reception quality QCR is less than the predetermined threshold value Th2 (step 218), it is checked whether there is an alternative FM station (step 220). Here, the alternative FM station can normally receive the reception quality detected by the above-described FM search among the stations of the FM broadcast broadcasting the program having the same contents as the service to be received that is being diversity received. It ’s a high-level station.

If there is no alternative FM station, the operation mode is returned to the DAB single reception mode (step 226), and the processing returns to step 206.
On the other hand, if there is an alternative FM station, the FM reception mode is set as the operation mode, the alternative FM station is set as the reception target station, and the reception target station is set as the reception station in the FM tuner 3. Reception of the FM station is started (step 222).

  If the FM reception mode is set, the generation of the alternative DAB service is waited (step 224). If the alternative DAB service is generated, the operation mode is returned to the DAB single reception mode (step 226). Is set as a reception target service, the reception target service is set as a reception service in the active tuner, and the processing returns to step 206.

  Here, the alternative DAB service means that the reception quality detected by the above-mentioned DAB search among the DAB services broadcasting the program having the same content as the reception target station received by the FM tuner 3 is sufficiently high. A good level of service.

The mode switching process performed by the control unit 7 has been described above.
Here, FIG. 3 shows an example of the reception operation of the radio broadcast receiving apparatus by such mode switching processing.
Now, as shown in FIG. 3b, assume that the DAB single reception mode is set as the operation mode and the service S1 is set as the reception target service at time T0. Further, it is assumed that the service S1 and the service S2 are DAB services that are broadcasting programs having the same contents.

  In such a situation, as shown in FIG. 3a, when the reception quality of service S1 deteriorates over time and the reception quality of service S2 improves over time, at time T1, the reception target When the reception quality of service S1 deteriorates from threshold value Th1, the presence / absence of an alternative DAB service candidate is investigated. At time T1, the reception quality of service S2 has improved to level Qa or higher, so service S2 becomes an alternative DAB service candidate. At this time, the operation mode is not switched, and the DAB single reception mode is used. Reception of the service S1 as a reception target service in the tuner and DAB search in the background tuner are continued.

  Then, at time T2, when the DAB search detects that the reception quality of service S2 is better than the reception quality of service S1 to be received, the service to be received is switched from service S1 to service S2. It is done.

After that, at time T3, when the reception quality of the service S2 to be received becomes better than the threshold value Th1, the reception of the service S2 to be received is performed stably thereafter.
Here, FIG. 3c shows, as a comparative example, an operation when the operation mode is switched to the DAB diversity reception mode when the reception quality of the service S1 to be received deteriorates from the threshold value Th1 at time T1. It is.

  As shown in the figure, when the operation mode is switched to the DAB diversity reception mode at time T1, diversity reception of the service S1 to be received using the first DAB tuner 1 and the second DAB tuner 2 is started from time T1. The DAB search at the ground will not be performed.

  At time T4, when the reception quality of the service S1 to be received deteriorates from the threshold value Th3 and reception becomes impossible, the operation mode returns to the DAB single reception mode, and the DAB search by the background tuner is resumed. .

  If a service S2 having better reception quality than the reception target service S1 is detected in the DAB search, the reception target service is switched from the service S1 to the service S2, and reception of the service S2 is started.

  As shown in the figure, in the example of FIG. 3c, the time required for discovery of the service S2 by the DAB search from when the operation mode is returned to the DAB single reception mode until the service to be received is switched to the service S2. Td is required, and during this time Td, the service cannot be received and output to the user.

On the other hand, according to the present embodiment, the situation shown in FIG. 3a does not occur such that the service cannot be received and output to the user as shown in FIG. 3b.
In the situation shown in FIG. 3a, if there is no service S2 that broadcasts a program having the same content as the service S1 to be received, the operation mode immediately changes to the DAB diversity reception mode at time T1. As a result, the diversity reception of the service S1 to be received using the first DAB tuner 1 and the second DAB tuner 2 is started from time T1.

The embodiment of the present invention has been described above.
By the way, although the above embodiment showed about the case where automatic switching (follow) to the broadcasting service which is broadcasting the program of the same content as the diversity reception of DAB (Digital Audio Broadcasting), this embodiment is RDS. The present invention can be similarly applied to the case where diversity reception and follow-up of broadcasts other than DAB such as FM broadcast and digital television broadcast accompanied by data broadcast are performed.

  DESCRIPTION OF SYMBOLS 1 ... 1st DAB tuner, 2 ... 2nd DAB tuner, 3 ... FM tuner, 4 ... Output selector, 5 ... Amplifier, 6 ... Speaker, 7 ... Control part, 8 ... Display part, 9 ... Operation part, 11 ... DAB front end , 12 ... Decoder, 13 ... Diversity reception processing unit, 14 ... Selector, 21 ... DAB front end, 22 ... Decoder, 31 ... FM front end, 32 ... FM demodulation unit, 33 ... RDS decoder.

Claims (6)

A broadcast receiving device for receiving a broadcast,
A first receiving system for receiving broadcasts;
A second receiving system for receiving the broadcast;
A diversity receiver that performs broadcast diversity reception using the first reception system and the second reception system;
An output means for outputting the content of the received broadcast;
A control unit,
The control unit has a first operation mode and a second operation mode as operation modes,
In the first operation mode, the control unit sets one of the first reception system and the second reception system as an active reception system and the other as a background reception system, and transmits a broadcast to be received to the active reception system. Receiving, causing the output means to output the content of the broadcast received by the active reception system, and allowing the background reception system to detect the reception status of each broadcast that is broadcasting the same content as the reception target broadcast, At a given opportunity, change the broadcast to be received to one of the good reception conditions that broadcast the same content as the broadcast,
In the second operation mode, the control unit allows the diversity reception unit to perform diversity reception of a broadcast to be received using the first reception system and the second reception system, and the diversity reception unit. Output the content of the broadcast received by the output means,
And,
When the operation mode is the first operation mode, the control unit detects the background reception system when the reception state of the broadcast to be received in the active reception system is deteriorated from a predetermined first level. When there is no alternative broadcast candidate that is a broadcast that broadcasts the same content as the broadcast to be received that is better than a predetermined second level, the operation mode is switched to the second operation mode, A broadcast receiving apparatus that maintains an operation mode in a first operation mode when alternative broadcast candidates exist. The broadcast receiving device according to claim 1,
In the first operation mode, the control unit is an alternative broadcast that is a broadcast that broadcasts the same content as the reception target broadcast that has a better reception state than the reception state in the active reception system of the reception target broadcast The broadcast receiving apparatus is characterized in that the broadcast to be received is changed to the alternative broadcast with the predetermined trigger being detected by the background reception system. The broadcast receiving apparatus according to claim 1 or 2,
When the operation mode is in the second operation mode, the control unit normalizes the broadcast to be received when the duration of the second operation mode has exceeded a predetermined time and when the diversity reception unit receives diversity. The broadcast receiving apparatus is characterized in that the operation mode is switched to the first operation mode in at least one of the cases where the reception becomes impossible. The broadcast receiving device according to claim 1, 2, or 3,
The broadcast receiving apparatus, wherein the broadcast is FM audio broadcast or digital audio broadcast. A first receiving system for receiving broadcasts, a second receiving system for receiving broadcasts, a diversity receiving unit for performing diversity reception of broadcasts using the first receiving system and the second receiving system, and reception A broadcast reception control method for controlling reception of a broadcast in a broadcast receiving device comprising output means for outputting the contents of the broadcast,
During the period when the first operation mode is set as the operation mode, the broadcast receiving apparatus has one of the first reception system and the second reception system as an active reception system and the other as a background reception system. The active receiving system receives the broadcast to be received, the broadcast content received by the active receiving system is output to the output means, and the same content as the broadcast to be received is broadcast to the background receiving system. Detecting the reception status of each broadcast, and changing the broadcast to be received to any one of the good reception status broadcasting the same content as the broadcast at a predetermined opportunity; In the period when the second operation mode is set as the operation mode, the diversity reception unit receives diversity reception of the broadcast to be received using the first reception system and the second reception system. And allowing the output means to output the content of the broadcast received by the diversity receiver, and
When the broadcast reception apparatus is in the first operation mode and the reception state of the broadcast to be received in the active reception system is deteriorated from a predetermined first level, the background reception system is When there is no alternative broadcast candidate that is a broadcast that is broadcasting the same content as the reception target broadcast whose detected reception state is better than a predetermined second level, the operation mode is switched to the second operation mode, And a step of maintaining the operation mode in the first operation mode when the alternative broadcast candidate exists. The broadcast reception control method according to claim 5,
During the period when the first operation mode is set, the broadcast receiving device has the same content as the broadcast of the reception target that has a better reception state than the reception state of the active reception system of the reception target broadcast. A broadcast reception comprising: a step of changing a reception target broadcast to the alternative broadcast with the predetermined trigger that an alternative broadcast that is being broadcast is detected by the background reception system Control method.