WO2014192493A1

WO2014192493A1 - Reception device and reception system

Info

Publication number: WO2014192493A1
Application number: PCT/JP2014/061985
Authority: WO
Inventors: 村上　真一; 城杉　孝敏
Original assignee: クラリオン株式会社
Priority date: 2013-05-27
Filing date: 2014-04-30
Publication date: 2014-12-04
Also published as: JP2014230250A

Abstract

In the present invention, a reception device sends position information to an external device. The reception device receives, from the external device, broadcast station information that is transmitted in accordance with the position information, i.e., broadcast station information that includes channel information of a broadcast station that is receivable in the position indicated by the position information, and information on the signal strength of the receivable broadcast station. The reception device receives a broadcast signal on the basis of the broadcast station information.

Description

Receiving apparatus and receiving system

The present invention relates to a digital broadcast receiving technique for transmitting and receiving digital information such as video, audio, and data, and more particularly to a receiving apparatus that receives while moving such as on-vehicle or mobile.

2. Description of the Related Art Conventionally, there is an information providing system that provides information about a broadcast channel that can be received at a place where a broadcast receiving apparatus exists from a predetermined server.
For example, Patent Document 1 discloses an information providing system that returns information about a broadcast channel that can be received at a location where the broadcast receiving apparatus is installed when a center that provides the information receives information indicating the installation location from the broadcast receiving apparatus. It is disclosed. According to this information providing system, for example, a newly installed broadcast receiving device can receive a broadcast that can be received at the installation location based on information received from the center without performing a search for a receivable broadcast channel independently. Channels can be set easily.

Japanese Patent No. 4253602

The above Patent Document 1 basically shows a reception method in a state where the reception device is fixed, and does not consider a reception method suitable for a mobile reception device that changes from moment to moment. Moreover, it has not coped with the difference in the configuration such as the number of diversity and the antenna mounting position and mounting height in the case of in-vehicle use depending on the receiver.

The present invention has been made in view of such a situation, and an object of the present invention is to preliminarily provide information on a transmitting station in a good reception state in accordance with the receiver configuration including the configuration of the receiver or the antenna mounting position. It is to provide an available receiving device.

In order to achieve the above object, for example, the configuration described in the claims is adopted.

According to the present invention, channel information of a broadcasting station with a good reception state can be obtained in advance according to the receiver configuration including the configuration of the receiver or the antenna mounting position. Also, depending on the embodiment, there is an effect that the channel information can be corrected according to its reliability, and reception information with higher accuracy can be obtained.

1 is a block diagram showing a digital broadcast receiving apparatus according to a first embodiment. The figure which shows an example of the receiving system identification information which concerns on 1st Embodiment. The operation | movement flowchart of the digital broadcast receiver which concerns on 1st Embodiment. The figure which shows an example of the broadcast station information which concerns on 1st Embodiment. The 1st figure which shows the correction method of the broadcast station information which concerns on 1st Embodiment. 2nd figure which shows the correction method of the broadcast station information which concerns on 1st Embodiment. The block diagram which shows the digital broadcast receiver which concerns on 2nd Embodiment. The operation | movement flowchart of the digital broadcast receiver which concerns on 2nd Embodiment. The figure which shows the correction method of the broadcast station information which concerns on 2nd Embodiment. The figure which shows the 1st example of the setting menu regarding receiving system identification information. The figure which shows the 2nd example of the setting menu regarding receiving system identification information. The 1st operation | movement flowchart of the digital broadcast receiver which concerns on 3rd Embodiment. The 2nd operation | movement flowchart of the digital broadcast receiver which concerns on 3rd Embodiment. The block diagram which shows the digital broadcast receiver which concerns on 4th Embodiment. The 1st operation | movement flowchart of the digital broadcast receiver which concerns on 4th Embodiment. The 2nd operation | movement flowchart of the digital broadcast receiver which concerns on 4th Embodiment. The figure which shows an example of the broadcast station information which concerns on 5th Embodiment. The operation | movement flowchart of the digital broadcast receiver which concerns on 5th Embodiment.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. In the drawings, the same reference numerals indicate the same or corresponding parts. Further, the present invention is not limited to the illustrated example.
The receiving apparatus according to the embodiment of the present invention supports reception of various broadcasting standards, and the supported broadcasting standards are DVB-T (Digital Video Broadcasting-Terrestrial) and DVB-T2 (Digital Video Broadcasting-Terrestrial 2). ), DVB-H (Digital Video Broadcasting-Handheld), DVB-SH (Digital Video Broadcasting-Satellite services to Handheld), DTMB (Digital Terrestrial Multimedia Broadcasting), CMMB (China Mobile Multimedia Broadcasting), T-DMB (Terrestrial-Digital) Media Broadcasting), S-DMB (Satellite-Digital Media Broadcasting) ISDB-T (Integrated Services Digital Broadcasting-Terrestrial), ISDB-TSB (Integrated Services Digital Broadcasting-Terrestrial Sound Broadcasting), ISDB-Tmm (Integrated Services Digital Broadcasting Mobile Multimedia) ), ATSC (Advanced Television Systems C ommittee), ATSC-M / H (Advanced Television Systems Committee-Mobile / Handheld), MediaFLO (Forward Link Only), DAB (Digital Audio Broadcasting), and the like. The receiving apparatus in the embodiment of the present invention will be described as an example having a receiving function of ISDB-T, which is a Japanese terrestrial digital broadcasting standard.

FIG. 1 is a block diagram showing a digital broadcast receiving apparatus according to the first embodiment.
101 is an antenna unit that receives a broadcast signal, 102 is a channel selection unit, 103 is a demodulation unit, 104 is a demultiplexing unit, 105 is an A / V decoding unit, 106 is an audio output terminal, 107 is a presentation processing unit, and 108 is a video output A terminal 109 is a collection of components from the antenna unit 101 to the video output terminal 108 and is called a broadcast receiving unit. 110 is a control unit, 111 is a storage unit, 112 is a reception channel selection unit (hereinafter referred to as CH selection unit), 113 is a position information detection unit, 114 is a bidirectional communication unit, 115 is a broadcast station information reliability correction unit, and 116 is The components from the antenna unit 101 to the broadcast station information reliability correction unit 115 are collected and are called a receiving device. Reference numeral 117 denotes a network, 118 denotes a center server, and 119 denotes a broadcast station information database.

The antenna unit 101 receives broadcast radio waves and outputs them to the channel selection unit 102. The channel selection unit 102 selects a predetermined reception channel in accordance with an instruction from the control unit 110, and outputs the selected reception channel signal to the demodulation unit 103. Demodulation section 103 demodulates the supplied reception channel signal and outputs a TS (Transport Stream) signal. The demultiplexing unit 104 extracts audio data and video data from the TS signal and outputs them to the A / V decoding unit. The A / V decoding unit 105 decodes the audio data and outputs it to the output terminal 106 as an audio signal. Further, the A / V decoding unit 105 decodes the video data and outputs the video data to the presentation processing unit 107 as a video signal. The presentation processing unit 107 multiplexes the video signal and information data instructed from the control unit 110 and outputs the multiplexed data to the output terminal 108.

The storage unit 111 includes a memory built in the digital broadcast receiving apparatus or a removable external memory, and stores various types of information.
The CH selection unit 112 selects a channel of one broadcast station desired by the viewer from the broadcast station data stored in the storage unit 111, and the channel information is supplied to the control unit 110.

The position information detection unit 113 detects the position of the digital broadcast receiving apparatus using, for example, a positioning system using a satellite, and the position information is supplied to the control unit 110. In addition to GPS (Global Positioning System) developed in the United States, the positioning system using satellites includes GLONASS (Global Navigation Satellite System) in Russia, Galileo in Europe, COMPASS (Compass Navigation System in Japan) There is a zenith satellite system.

The two-way communication unit 114 has communication functions such as a mobile phone, a wireless LAN (Local Area Network), Bluetooth (registered trademark), WiMAX, etc., and is connected to the center server 118 via these networks 117, and is a broadcasting station information database. Broadcast station information stored in 119 is acquired and stored in the storage unit 111.

The broadcast station information reliability correction unit 115 corrects the value of the broadcast station information acquired from the center server, for example, as described later.
In the above description, the antenna unit 101 and the channel selection unit 102 have one system. However, the diversity unit may have a plurality of systems, and the demodulation unit 103 may demodulate a plurality of received signals and combine the diversity.
This will be described in detail below with reference to FIGS.

FIG. 2 is a diagram illustrating an example of reception system identification information according to the first embodiment. The reception system identification information is stored in the storage unit 111, and is transmitted from the reception device 116 to the center server 118 prior to acquisition when the reception device 116 acquires broadcast station information from the center server 118. This receiving system identification information is an example defined using the antenna mounting position, the number of diversity, and the vehicle height of the moving body on which the receiving device 116 is mounted as parameters. For example, the receiving system identification information of the receiving device in which the antenna mounting position is front, the diversity number is 4, and the vehicle height of the moving body on which the receiving device 116 is mounted is classified as “D1” is “D1”. When the broadcast station information is acquired from the center server 118, information “D1” is transmitted from the receiving device 116 to the center server 118 prior to acquisition.

FIG. 3 is an operation flow diagram of the digital broadcast receiving apparatus according to the first embodiment, and shows an operation flow for searching for a reception channel of a receivable broadcast station.
First, the control unit 110 acquires current position information from the position information detection unit 113 (S301).
Next, the control unit 110 acquires the reception system identification information of the reception device 116 stored in the storage unit 111 (S302).

And the control part 110 requests | requires acquisition of broadcast station information by transmitting the above-mentioned positional information and receiving system identification information to the center server 118 via the bidirectional | two-way communication part 114 (S303).
The broadcast station information database 119 in the center server 118 has reception level information such as the frequency of the broadcast station and related affiliate stations based on the position information in accordance with the reception system identification information. Based on the position information and the receiving system identification information received from the receiving device 116, the corresponding broadcasting station information is extracted from the broadcasting station information database 119 (S304).

Note that the center server 118 performs version upgrade of the broadcast station information database 119, software update processing, and the like, and manages the reliability of the broadcast station information changed by this as version information. In this embodiment, the version management information is managed numerically. The greater the version management information, the higher the reliability of the broadcast station information, and the smaller the version management information, the lower the reliability of the broadcast station information. The center server 118 transmits the broadcast station information extracted in S304 and the version management information of the broadcast station information to the receiving device 116 (S305).

FIG. 4 is a diagram illustrating an example of broadcast station information transmitted from the center server 118 to the reception device 116 according to the first embodiment. For each broadcast station, the channel and signal strength of the relay station and affiliated station correspond to each other. It is attached. Here, it is assumed that the higher the signal strength, the better the radio wave condition, and the lower the signal strength, the poor the radio wave condition.
After receiving the broadcast station information and the version management information from the bidirectional communication unit 114, the control unit 110 uses the broadcast station information reliability correction unit 115 to correct the signal strength data included in the received broadcast station information ( S306).

FIG. 5A and FIG. 5B are first and second diagrams illustrating the correction method of the broadcast station information according to the first embodiment, in which the broadcast station information signal strength correction processing in the broadcast station information reliability correction unit 115 is performed. An example is shown.
In FIG. 5A, the version management information range is 0 to 100, the signal strength correction coefficient is determined by (Equation 1), and the corrected signal strength is obtained by (Equation 2) (501).

Correction coefficient = Version management information−100 (Formula 1)

Signal strength after correction = Signal strength before correction + Correction coefficient (Equation 2)

When the version management information is 80, the signal strength data of the broadcast station information shown in FIG. 4 becomes data indicated by 502 in FIG. 5A by the correction processing of (Equation 2). The negative number after correction processing is replaced with 0. That is, as the version of the broadcast station information database 119 in the center server 118 is older (the value indicated by the version management information is smaller), the signal strength data is corrected to a smaller value.

In FIG. 5B, the range of the version management information is 0 to 100, the signal strength correction coefficient is determined by (Equation 3), and the corrected signal strength is obtained by (Equation 4) (503).

Correction coefficient = Version management information / 100 (Formula 3)

Signal intensity after correction = signal intensity before correction × correction coefficient (Formula 4)

When the version management information is 80, the signal strength data of the broadcast station information shown in FIG. 4 becomes data indicated by 504 in FIG. 5B by the correction processing of (Equation 4). That is, as the version of the broadcast station information database 119 in the center server 118 is older (the value indicated by the version management information is smaller), the signal strength data is corrected to a smaller value.

Returning to FIG. After correcting the broadcast station information in S306 as described above, for example, the control unit 110 performs a channel search process using the corrected broadcast station information (S307).
When detecting the reception channel of a broadcast station that can be viewed at the current location, the control unit 110 first refers to the broadcast station information of the desired broadcast station, and determines the channel search order according to the signal strength of the relay station and affiliated station. To do. Then, the control unit 110 selects a channel for the broadcast reception unit 109 in the determined search order, and selects the optimum reception channel based on the reception state (reception strength, error rate, C / N, etc.) of each channel. To decide. Details of the channel search will be described in another embodiment.

Thereafter, the control unit 110 transmits the search result information obtained by the channel search process to the center server 118 (S308). The search result information includes, for example, a broadcast station name, reception channel, reception intensity, error rate, C / N, time, current location, traveling road name, traveling direction, broadcasting method, weather, and the like.
Upon receiving the search result information, the center server 118 updates the broadcast station information database 119 using the search result information (S309). However, the means for constructing the broadcast station information database 119 is arbitrary and may be any method.

In this embodiment, the position information and the receiving system identification information are transmitted in the broadcast station information acquisition request (S303). However, when performing a channel search limited to a specific broadcast station in the channel search (S307), In addition to the information, the name of the broadcasting station for further channel search may be transmitted to the center server 118, and the center server 118 may be configured to return the broadcasting station information related to the received broadcasting station name to the receiving device 116.

As described above, since the receiving device 116 can acquire broadcast station information suitable for the receiving system from the center server 118, it is possible to obtain information on the channel information of a broadcast station in a good reception state from the center server in advance. In addition, the time required for the channel search (S308) can be shortened. In addition, since the receiving apparatus 116 performs the broadcast station information correction process (S306) using the version management information of the broadcast station information, an appropriate channel search can be realized in consideration of the degree of reliability of the broadcast station information.

Note that, as a method of correcting the signal strength data of the broadcast station information, a method based on the version of the broadcast station information database 119 has been described as an example. However, if the data can be corrected according to whether it is new data, other methods This method may be used. For example, based on the time from the date and time when the data is updated to the current time, correction may be performed such that the older the data, the smaller the value.

FIG. 6 is a block diagram showing a digital broadcast receiving apparatus according to the second embodiment. 1 denote the same functions. In FIG. 6, a broadcasting station information receiving system correction unit 120 is added to FIG.
FIG. 7 is an operation flowchart of the digital broadcast receiving apparatus according to the second embodiment, and is an operation flow for searching for a reception channel of a receivable broadcast station. The same reference numerals as those in FIG. 3 denote the same processes.

First, the control unit 110 acquires current position information from the position information detection unit 113 (S301). And the control part 110 transmits the acquired positional information to the center server 118 via the bidirectional | two-way communication part 114, and requests | requires acquisition of broadcast station information (S701).
The center server 118 extracts corresponding broadcast station information from the broadcast station information database 119 based on the position information received from the receiving device 116 (S304), and the extracted broadcast station information and version management information of the broadcast station information. Is transmitted to the receiving device 116 (S305).
After receiving the broadcast station information from the bidirectional communication unit 114, the control unit 110 confirms the reception system identification information of the reception device 116 stored in the storage unit 111 (S702).

FIG. 8 is a diagram illustrating a correction method for broadcast station information according to the second embodiment, and illustrates an example of signal intensity correction processing for broadcast station information in the broadcast station information reliability correction unit 115.
801 in FIG. 8 is an example of correction value information corresponding to the reception system stored in the storage unit 111. This reception system correction value information is defined using the antenna mounting position, the number of diversity, and the vehicle height of the moving body on which the receiving device 116 is mounted as parameters. For example, the receiving system correction value information of the receiving apparatus in which the antenna mounting position is front, the diversity number is 4, and the vehicle height of the moving body on which the receiving apparatus 116 is mounted is classified as “low” is “10”.
Next, the control unit 110 corrects the signal strength data of the received broadcast station information using the broadcast station information reception system correction unit 120 (S703).

802 in FIG. 8 shows an example of signal strength data after the signal strength correction processing of the broadcast station information in the broadcast station information receiving system correction unit 120. The corrected signal intensity is given by (Equation 5).

Signal strength after correction = Signal strength before correction + Correction coefficient (Equation 5)

In the characteristics of the receiving apparatus, when the antenna mounting position is front, the diversity number is 4, and the vehicle height of the moving body on which the receiving apparatus 116 is mounted is classified as “low”, the signal strength of the broadcast station information shown in FIG. Becomes 802 by this correction processing. It should be noted that the signal intensity 0 before the correction process is set to 0 after the correction process, and the negative number after the correction process is replaced with 0.

After that, the control unit 110 uses the broadcast station information reliability correction unit 115 to correct the signal strength of the received broadcast station information based on the version management information as described above (S306).
The control unit 110 performs channel search processing using the broadcast station information corrected in S703 and S306 (S307).
Thereafter, the control unit 110 transmits the search result information obtained by the channel search process to the center server 118 (S308), and the center server 118 receives the search result information and updates the broadcast station information database 119 (S309). .

As described above, the receiving device 116 can obtain channel information of a broadcasting station in a good reception state from the center server in advance, and further, according to the receiving system for the broadcasting station information received from the center server 118. By performing the correction process, it is possible to correct the broadcast station information suitable for the receiving system, and further, by using the corrected broadcast station information, it is possible to reduce the time required for the channel search (S308). . Further, since the center server 118 does not need to construct broadcast station information according to the receiving system, the load on the center server 118 can be reduced.
In the first and second embodiments of the present invention, the reception system identification is determined in advance. However, the reception system identification may be determined by the user.

9A and 9B are diagrams illustrating first and second examples of setting menus related to reception system identification information.
FIG. 9A is an example of a menu screen on which a receiving system identification can be set from a TV monitor attached to the receiving device 116. The control unit 110 instructs the presentation processing unit 107 to output a menu screen, and the menu screen is output on the TV monitor via the video output terminal 108. The user selects the vehicle height, the number of diversity, and the antenna mounting position, based on which the reception system identification information is determined and stored in the storage unit 111.
Moreover, although the vehicle height, the number of diversity, and the antenna mounting position are used as the elements constituting the receiving system identification, it is not limited to this, and any one of these elements may be used. Elements other than these constituent elements may be used. Alternatively, the reception system identification may be determined based on the vehicle name or the vehicle type name of the moving body on which the receiving device 116 is mounted.

FIG. 9B is an example of a menu screen for setting a correction value corresponding to the reception system identification from the TV monitor attached to the reception device 116. The user selects a correction value (in this case, a range from −30 to +30) from the menu screen, and the selected correction value is stored in the storage unit 111.
With respect to the timing of starting the flowchart of FIG. 3 of the first embodiment and FIG. 7 of the second embodiment, for example, when the reception state of the viewing program is lowered, when the viewing program is not receivable, or It may be controlled to be performed at any timing such as when it is out of the broadcasting area, or periodically.

In this embodiment, details of the channel search (S307) will be described. In this embodiment, it is assumed that the broadcast receiving unit 109 has received the program of “Station Name I” selected by the viewer from the CH selection unit 112, and in the channel search, the relay station channel or series of “Station Name I” is selected. An example of searching for a station channel will be described.
The configuration of the receiving apparatus in this embodiment is the same as that shown in FIG. In the present embodiment, description will be made using the broadcast station information indicated by reference numeral 802 in FIG.

10A and 10B are first and second operation flowcharts of the digital broadcast receiving apparatus according to the third embodiment.
FIG. 10A is an example of an operation flowchart showing the channel search operation in the receiving apparatus 116 of this embodiment.
First, the control unit 110 refers to the broadcast station information stored in the storage unit 111 and arranges the relay station channels in order of increasing signal strength (S1001). The relay station channel order after the rearrangement is a1 → a6 → a7 → a2 → a4 → a3 → a5 → a8.

Next, the control unit 110 sets the “a1” channel (first channel after rearrangement) in the channel selection unit 102, and the channel selection unit 102 selects the “a1” channel (S1002). The demodulation unit 103 performs demodulation processing of the “a1” channel, calculates information indicating the reception state such as reception intensity, error rate, C / N (hereinafter, reception quality information), and outputs the information to the control unit 110. Further, the demultiplexing unit 104 extracts program identification information (hereinafter referred to as PSI: Program Specific Information), program arrangement information (hereinafter referred to as SI: Service Information), and the like, and outputs the information to the control unit 110.

The control unit 110 performs reception determination based on these pieces of information (S1003). The control unit 110 determines whether or not the “a1” channel has a viewable reception quality from the reception quality information. If the control unit 110 determines that the channel is the viewable reception quality, the control unit 110 further determines the network ID from the PSI / SI information. (Network_id) is acquired, and it is determined whether or not it matches the network ID of “station name I” (S1003A). If the acquired network ID matches the network ID of “station name I”, it is determined as a relay station, and the process proceeds to step S1004. If the acquired network ID does not match the network ID of “station name I”, or if it is determined from the reception quality information that the “a1” channel cannot be viewed in step S1003, the process proceeds to step S1005.

In step S1005, it is determined whether there is any other relay station channel that has not been searched. If there is another relay station channel (NO in the figure), the process returns to step S1002, and the order rearranged in step S1001. Set the channel with. If there is no other relay station channel (YES in the figure), the process proceeds to step S1006.
In step S1004, the broadcast receiving unit 109 receives the relay station channel found in step S1003 and ends this flow.
In step S1006, control unit 110 arranges the affiliated station channels in order of increasing signal strength. The channel order of the affiliated stations after rearrangement is b6 → b2 → b1 → b3 → b4 → b5.

Next, the control unit 110 sets the “b6” channel (first channel after rearrangement) in the channel selection unit 102, and the channel selection unit 102 selects the “b6” channel (S1007). Similarly to step S <b> 1002, the demodulation unit 103 performs demodulation processing of the “b6” channel, calculates reception quality information, and outputs the reception quality information to the control unit 110. Further, the demultiplexing unit 104 extracts PSI / SI information and the like and outputs them to the control unit 110.

The control unit 110 performs reception determination based on these pieces of information (S1008). The control unit 110 determines from the reception quality information whether or not the reception quality is “b6” viewable. If it is determined that the reception quality is viewable, the control unit 110 further determines the sequence ID from the PSI / SI information. (Affiliation_id) is acquired, and it is determined whether or not it matches the sequence ID of “station name I” (S1008A). If the acquired sequence ID matches the sequence ID of “station name I”, it is determined as an affiliated station and the process proceeds to step S1009. If the acquired sequence ID does not match the sequence ID of “station name I”, or if it is determined from the reception quality information that the “b6” channel cannot be viewed in step S1008, the process proceeds to step S1010.

In step S1010, it is determined whether there is another affiliated station channel. If there is another affiliated station channel (NO in the figure), the process returns to step S1007, and the channel setting is performed in the order rearranged in step S1006. Do. If there is no affiliated station channel that has not been searched (YES in the figure), it is determined that there is no relay station channel or affiliated station channel of “Station Name I” that can be viewed at the current location, and this flow is performed. finish.
In step S1009, the broadcast receiving unit 109 receives the affiliated station channel found in step S1008 and ends this flow.

FIG. 10B is another example of an operation flowchart showing the channel search operation in the receiving apparatus 116 of this embodiment.
First, the control unit 110 refers to the broadcast station information stored in the storage unit 111, puts the relay station channel and the affiliated station channel together, and arranges them in order of increasing signal strength (S1011). The rearranged channel order is a1 → a6 → b5 → a7 → a2 → b2 → a4 → a3 → a5 → a8 → b1 → b3 → b4 → b5.

Next, the control unit 110 sets the “a1” channel (first channel after rearrangement) in the channel selection unit 102, and the channel selection unit 102 selects the “a1” channel (S1012). Demodulation section 103 performs demodulation processing on the “a1” channel, calculates reception quality information, and outputs it to control section 110. Further, the demultiplexing unit 104 extracts PSI / SI information and the like and outputs them to the control unit 110.

The control unit 110 performs reception determination based on these pieces of information (S1013). The control unit 110 determines whether or not the reception quality information can be viewed from the reception quality information, and if it is determined that the reception quality is viewable, the control unit 110 further determines the network ID from the PSI / SI information. And the series ID is acquired, and it is determined whether or not it matches the network ID or series ID of “station name I” (S1013A). When the acquired network ID matches the network ID of “station name I”, or when the acquired sequence ID matches the sequence ID of “station name I”, it is determined as a relay station or an affiliated station, and the process proceeds to step S1014. . If neither the acquired network ID nor the sequence ID matches the network ID or sequence ID of “station name I”, or if it is determined from step S1013 that the reception quality information indicates that the “a1” channel cannot be viewed, the step The process proceeds to S1015.

In step S1014, the broadcast receiving unit 109 receives the relay station channel or affiliated station channel found in step S1013, and ends this flow.

In step S1015, it is determined whether there is any other relay station channel or affiliated station channel that has not been searched. If there is another channel (NO in the figure), the process returns to step S1012 and the order rearranged in step S1011. Set the channel with. If there is no other relay station channel or affiliated station channel (YES in the figure), it is determined that there is no relay station channel and affiliated station channel of “Station Name I” that can be viewed at the current location, and this flow is performed. finish.

In FIG. 10A, first, the channel of the relay station is searched, and the channel of the affiliated station is searched when a channel having a good reception state cannot be found. On the other hand, in FIG. 10B, the channel is searched without distinguishing between the relay station and the affiliated station.

In FIG. 10A and FIG. 10B, search is performed for all the relay station channels and affiliated station channels described in the broadcast station information. For example, the signal strength is “0” or the signal strength is less than a predetermined threshold value. These channels may be processed without performing a search. The predetermined threshold value may be, for example, the minimum signal intensity necessary for program viewing.

As described above, the control unit 110 has an effect of efficiently finding a reception channel having a good reception state by performing a search in order from a channel having a higher signal strength of the broadcast station information. Further, by limiting the number of channels to be searched by threshold processing of signal strength, it is possible to shorten the time required for the entire channel search processing.

FIG. 11 is a block diagram showing a digital broadcast receiving apparatus according to the fourth embodiment.
1 denote the same functions. 101a and 101b are antenna units, 102a and 102b are channel selection units, 121 is a demodulation / combination unit, 104a and 104b are demultiplexing units, and 122 is a 2-input A / V decoding unit.

The

antenna units

101a and 101b receive broadcast radio waves and output them to the

channel selection units

102a and 102b, respectively. The

channel selection units

102 a and 102 b select a predetermined reception channel according to an instruction from the control unit 110, and output the selected reception channel signal to the demodulation / combination unit 121. The demodulation / combination unit 121 demodulates the supplied reception channel signal through a transmission path and outputs the demodulated TS signals to the

demultiplexing units

104a and 104b, respectively. Further, the demodulation / combination unit 121 can also demodulate and diversity combine the supplied reception channel signal in accordance with an instruction from the control unit 110, and output the TS signal obtained by the synthesis to the

demultiplexing unit

104a or 104b. .

The

demultiplexing units

104 a and 104 b extract audio data and video data from the TS signal, and output them to the 2-input compatible A / V decoding unit 122. The 2-input compatible A / V decoding unit 122 decodes the two systems of audio data and video data supplied, and in response to an instruction from the control unit 110, decodes the audio signal and video signal of either system. The data is output to the output terminal 106 and the presentation processing unit 107.
In the above description, the

antenna units

101a and 101b and the

channel selection units

102a and 102b are two systems. However, a diversity configuration in which the number of systems is further increased may be combined by the demodulation / combination unit 121.

12A and 12B are first and second operation flowcharts of the digital broadcast receiver according to the fourth embodiment.
FIG. 12A is an example of an operation flowchart showing the channel search operation in the receiving apparatus 116 of this embodiment. In this embodiment, it is assumed that the broadcast receiving unit 109 has received a program of “station name I” selected by the viewer instructing the CH selection unit 112, and in the channel search, the relay station of “station name I” is received. An example of searching for channels and affiliated station channels will be described. In the present embodiment, description will be made using broadcast station information indicated by reference numeral 802 in FIG.

First, as an initial state, it is assumed that the receiving device 116 is receiving “station name I” by diversity reception using all channel selection units. Specifically, the control unit 110 sets the reception channel of “station name I” in the

channel selection units

102a and 102b, and the

channel selection units

102a and 102b select the channel of “station name I”. Further, the demodulator / synthesizer 121 demodulates and diversity synthesizes the two received signals and outputs them to the demultiplexer 104a. Then, the audio signal and video signal of “Station Name I” are output from the audio output terminal 106 and the video output terminal 108 via the demultiplexing unit 104a, the 2-input compatible A / V decoding unit 122, the presentation processing unit 107, and the like. Is done.

In step S1201, the control unit 110 refers to the broadcast station information stored in the storage unit 111, and arranges the relay station channels in order of increasing signal strength (S1201). The relay station channel order after the rearrangement is a1 → a6 → a7 → a2 → a4 → a3 → a5 → a8.
Next, the control unit 110 cancels diversity combining reception (S1202). Specifically, the control unit 110 demodulates the received signals from the

channel selection units

102a and 102b with respect to the demodulation / combination unit 121, does not perform diversity combining, and demultiplexes the TS signals obtained by demodulation. The data is output to 104a and 104b.

Subsequently, the control unit 110 sets the “a1” channel (first channel after rearrangement) in the channel selection unit 102b, and the channel selection unit 102b selects the “a1” channel (S1203). The demodulation / combination unit 121 performs demodulation processing on the “a1” channel, calculates reception quality information, and outputs the reception quality information to the control unit 110. Further, the demultiplexing unit 104 b extracts PSI / SI information and the like and outputs the extracted information to the control unit 110.

The control unit 110 performs reception determination based on these pieces of information (S1204). When the control unit 110 compares the reception quality of the “a1” channel with the reception quality of the reception channel of the channel selection unit 102a and determines that the reception quality of the “a1” channel is greater (good), Further, the network ID (network_id) is acquired from the PSI / SI information, and it is determined whether or not it matches the network ID of “station name I” (S1204A). If the acquired network ID matches the network ID of “station name I”, it is determined as a relay station and the process proceeds to step S1205. When the acquired network ID does not match the network ID of “station name I”, or when it is determined in step S1204 that the reception quality of the “a1” channel is lower (bad) than the reception quality of the channel selection unit 102a. The process proceeds to step S1206.

In step S1206, it is determined whether or not there are other relay station channels that are not searched. If there are other relay station channels (NO in the figure), the process returns to step S1203 and the order rearranged in step S1201. Set the channel with. If there is no other relay station channel (YES in the figure), the process proceeds to step S1207.

In step S1205, the broadcast receiving unit 109 performs diversity combining reception after receiving the relay station channel discovered in steps S1204 and S1204A (S1212), and ends this flow. Specifically, the control unit 110 selects the relay station channel found for the

channel selection units

102a and 102b, and also demodulates and diversity-combines two received signals to the demodulation / synthesis unit 121 and combines them. The TS signal is output to the demultiplexing unit 104a.

In step S1207, control unit 110 arranges the affiliated station channels in order of increasing signal strength. The channel order of the affiliated stations after rearrangement is b6 → b2 → b1 → b3 → b4 → b5.
Next, the control unit 110 sets the “b6” channel (first channel after rearrangement) in the channel selection unit 102b, and the channel selection unit 102b selects the “b6” channel (S1208). Similarly to step S <b> 1203, the demodulation / combination unit 121 performs demodulation processing on the “b6” channel, calculates reception quality information, and outputs the reception quality information to the control unit 110. In addition, the demultiplexing unit 104 a extracts PSI / SI information and the like and outputs them to the control unit 110.

The control unit 110 performs reception determination based on these pieces of information (S1209). When the control unit 110 compares the reception quality of the “b6” channel with the reception quality of the reception channel of the channel selection unit 102a, and determines that the reception quality of the “b6” channel is greater (good), Further, a sequence ID (affiliation_id) is acquired from the PSI / SI information, and it is determined whether or not it matches the sequence ID of “station name I” (S1209A). If the acquired sequence ID matches the sequence ID of “station name I”, it is determined as an affiliated station, and the process proceeds to step S1210. When the acquired sequence ID does not match the sequence ID of “station name I”, or when it is determined in step S1209 that the reception quality of the “b6” channel is lower (bad) than the reception quality of the channel selection unit 102a. The process proceeds to step S1211.

In step S1211, it is determined whether there are other affiliated station channels that have not been searched. If there are other affiliated station channels (NO in the figure), the process returns to step S1208, and the order rearranged in step S1207. Set the channel with. If there is no other affiliated station channel that has not been searched (YES in the figure), it is determined that there is no relay station channel or affiliated station channel of “Station Name I” that can be viewed at the current location, and the flow starts. Return to reception by diversity combining similar to the time point (S1212), and this flow ends.

In step S1210, the broadcast receiving unit 109 performs diversity combining reception after receiving the affiliated station channel discovered in steps S1209 and S1209A, and ends this flow. Specifically, the control unit 110 selects the affiliated station channel found for the

channel selection units

102a and 102b, and also demodulates and diversity-combines the two received signals to the demodulation / combination unit 121, and is generated. The TS signal is output to the demultiplexing unit 104a.

FIG. 12B is another example of a flowchart showing the channel search operation in the receiving apparatus 116 of this embodiment. The same reference numerals as in FIG. 12A indicate the same processing.
In step S1213, the control unit 110 refers to the broadcast station information stored in the storage unit 111, puts the relay station channel and the affiliated station channel together, and arranges them in order of increasing signal strength. The rearranged channel order is a1 → a6 → b5 → a7 → a2 → b2 → a4 → a3 → a5 → a8 → b1 → b3 → b4 → b5.

Next, in step S1214, the control unit 110 cancels diversity combining reception (similar to S1202).
Subsequently, the control unit 110 sets the “a1” channel (first channel after rearrangement) in the channel selection unit 102b, and the channel selection unit 102b selects the “a1” channel (S1215). The demodulation / combination unit 121 performs demodulation processing on the “a1” channel, calculates reception quality information, and outputs the reception quality information to the control unit 110. Further, the demultiplexing unit 104 b extracts PSI / SI information and the like and outputs the extracted information to the control unit 110.

The control unit 110 performs reception determination based on these pieces of information (S1216). When the control unit 110 compares the reception quality of the “a1” channel with the reception quality of the reception channel of the channel selection unit 102a and determines that the reception quality of the “a1” channel is greater (good), Further, the network ID and the sequence ID are acquired from the PSI / SI information, and it is determined whether or not the network ID or the sequence ID of “station name I” matches (S1216A). When the acquired network ID matches the network ID of “station name I”, or when the acquired sequence ID matches the sequence ID of “station name I”, it is determined as a relay station or an affiliated station, and the process proceeds to step S1217. . When it is determined that the acquired network ID and sequence ID do not match the network ID or sequence ID of “Station Name I”, or the reception quality information indicates that the “a1” channel cannot be viewed from the reception quality information in the determination in step S1216. Advances to step S1218.

In step S1218, it is determined whether there is any other relay station channel or affiliated station channel that has not been searched. If there is another channel (NO in the figure), the process returns to step S1215, and the order rearranged in step S1214. Set the channel with. If there is no other relay station channel or affiliated station channel (YES in the figure), it is determined that there is no relay station channel or affiliated station channel of “station name I” that can be viewed at the current location, and the flow starts. Return to reception by diversity combining similar to the time point (S1219), and this flow ends.
In step S1217, the broadcast receiving unit 109 performs diversity combining reception after receiving the relay station channel or affiliated station channel found in steps S1216 and S1206A (S1219), and ends this flow.

In FIG. 12A, first, the channel of the relay station is searched, and the channel of the affiliated station is searched when a channel having a good reception state cannot be found. On the other hand, in FIG. 12B, a channel is searched without distinguishing between a relay station and an affiliated station.

In FIG. 12A and FIG. 12B, the search processing is performed for all relay station channels and affiliated station channels described in the broadcast station information. For example, the signal strength is “0” or the signal strength is less than a predetermined threshold value. These channels may be processed without performing a search. The predetermined threshold value may be, for example, the minimum signal intensity necessary for program viewing.

As described above, the channel search is executed using the other channel selection unit 102b while continuing the program reception using the one channel selection unit 102a, so that the program viewing is not interrupted and the reception state is improved. A station channel or an affiliated station channel can be searched. Further, the control unit 110 has an effect of efficiently finding a reception channel having a good reception state by performing a search in order from a channel with a higher signal strength of the broadcast station information. Further, by limiting the number of channels to be searched by threshold processing of signal strength, it is possible to shorten the time required for the entire channel search processing.

The digital broadcast receiving apparatus according to the fifth embodiment of the present invention can receive programs of two or more broadcast standards selected by the viewer. Hereinafter, it is assumed that programs of the first broadcast standard and the second broadcast standard can be received. The configuration of the digital broadcast receiving apparatus in the fifth embodiment may be the same as that shown in FIG.

In this embodiment, the broadcast station information database 119 in the center server 118 manages broadcast station information for each of the first broadcast standard and the second broadcast standard, and the first broadcast standard and the second broadcast standard. Broadcast stations that broadcast the same program according to the standard are also managed.
The broadcast station information acquisition request transmitted from the receiving device 116 to the center server 118 includes broadcast standard information currently received by the receiving device 116. For example, when the broadcast standard information is the first broadcast standard, the center server 118 broadcasts the same program as the first broadcast standard in addition to the broadcast station information of the first broadcast standard in response to the acquisition request. The broadcast station information of the second broadcast standard broadcast station is transmitted to the receiving device 116.

FIG. 13 is a diagram illustrating an example of broadcast station information according to the fifth embodiment. The broadcast station is transmitted from the center server 118 to the reception device 116, subjected to correction processing, and stored in the storage unit 111. An example of information is shown. 1301 is broadcast station information of the first broadcast standard, 1302 is broadcast station information of “station name i” of the second broadcast standard broadcasting the same program as “station name I” of the first broadcast standard.
FIG. 14 is an operation flowchart of the digital broadcast receiving apparatus according to the fifth embodiment, and shows an example of an operation flow showing the channel search operation in the receiving apparatus 116.

First, as an initial state, it is assumed that the receiving device 116 is in a state of receiving “Station Name I” of the first broadcast standard by diversity reception using all the channel selection units. Specifically, the control unit 110 sets the reception channel of “station name I” in the

channel selection units

102a and 102b, and the

channel selection units

In step S1401, the control unit 110 cancels diversity combining reception. Specifically, the control unit 110 demodulates the received signals from the

channel selection units

Next, proceeding to step S1402, first, the control unit 110 refers to the broadcast station information of the first broadcast standard stored in the storage unit 111, and arranges the relay station channels in descending order of signal strength. The relay station channel order after rearrangement is a1 → a2 → a4 → a3. The control unit 110 sets the “a1” channel (first channel after rearrangement) in the channel selection unit 102b, and the channel selection unit 102b selects the “a1” channel. The demodulation / combination unit 121 performs demodulation processing on the “a1” channel, calculates reception quality information, and outputs the reception quality information to the control unit 110. Further, the demultiplexing unit 104 b extracts PSI / SI information and the like and outputs the extracted information to the control unit 110.

The control unit 110 performs reception determination on the relay station based on the first broadcast standard based on these pieces of information (S1403). When the control unit 110 compares the reception quality of the “a1” channel with the reception quality of the reception channel of the channel selection unit 102a and determines that the reception quality of the “a1” channel is greater (good), Further, the network ID is acquired from the PSI / SI information, and it is determined whether or not it matches the network ID of “Station Name I”. When the acquired network ID matches the network ID of “station name I”, it is determined as a relay station (YES in S1403), and the discovered relay station channel is received after diversity combining (S1410), and this flow ends. To do.

If the acquired network ID does not match the network ID of “station name I”, or if it is determined that the reception quality of the “a1” channel is lower (bad) than the reception quality of the channel selection unit 102a, in S1402 The above processing is performed in the rearranged order. If there is no other relay station channel (NO in S1403), the process proceeds to step S1404.

In step S1404, the control unit 110 arranges the affiliated station channels of the first broadcast standard in order of increasing signal strength. The channel order of the affiliated stations after rearrangement is b2 → b1 → b3. The control unit 110 sets the “b2” channel (first channel after rearrangement) in the channel selection unit 102b, and the channel selection unit 102b selects the “b2” channel. The demodulation / combination unit 121 performs demodulation processing on the “b2” channel, calculates reception quality information, and outputs the reception quality information to the control unit 110. Further, the demultiplexing unit 104 b extracts PSI / SI information and the like and outputs the extracted information to the control unit 110.

The control unit 110 performs reception determination of affiliated stations based on the first broadcast standard based on these pieces of information (S1405). When the control unit 110 compares the reception quality of the “b2” channel with the reception quality of the reception channel of the channel selection unit 102a and determines that the reception quality of the “b2” channel is greater (good), Further, the sequence ID is acquired from the PSI / SI information, and it is determined whether or not it matches the sequence ID of “station name I”. If the acquired sequence ID matches the sequence ID of “station name I”, it is determined as an affiliated station (YES in S1405), and the discovered affiliated station channel is received by diversity combining (S1410), and this flow ends. .

If the acquired sequence ID does not match the sequence ID of “station name I”, or if it is determined that the reception quality of the “b2” channel is lower (bad) than the reception quality of the channel selection unit 102a, in S1404. The above processing is performed in the rearranged order (b1 → b3). If there is no other relay station channel (NO in S1405), the process proceeds to step S1406.

Next, the process proceeds to step S1406. First, the control unit 110 refers to the broadcast station information of the second broadcast standard stored in the storage unit 111, and arranges the relay station channels in order of increasing signal strength. The relay station channel order after rearrangement is c1 → c3 → c2. The control unit 110 sets the “c1” channel (first channel after rearrangement) in the channel selection unit 102b, and the channel selection unit 102b selects the “c1” channel. The demodulation / combination unit 121 performs demodulation processing on the “c1” channel, calculates reception quality information, and outputs the received quality information to the control unit 110. Further, the demultiplexing unit 104 b extracts PSI / SI information and the like and outputs the extracted information to the control unit 110.

The control unit 110 performs reception determination of the relay station based on the second broadcast standard based on such information (S1407). When the control unit 110 compares the reception quality of the “c1” channel with the reception quality of the reception channel of the channel selection unit 102a and determines that the reception quality of the “c1” channel is greater (good), Further, the network ID is acquired from the PSI / SI information, and it is determined whether or not it matches the network ID of “station name i”. If the acquired network ID matches the network ID of “station name i”, it is determined as a relay station (YES in S1407), and the detected relay station channel is received after diversity combining (S1410), and this flow is terminated. To do.

If the acquired network ID does not match the network ID of “station name i”, or if it is determined that the reception quality of the “c1” channel is lower (bad) than the reception quality of the channel selection unit 102a, in S1406 The above processing is performed in the rearranged order. If there is no other relay station channel (NO in S1407), the process proceeds to step S1408.

In step S1408, the control unit 110 arranges affiliated station channels of the second broadcasting standard in order of increasing signal strength. The channel order of the affiliated stations after rearrangement is d3 → d1 → d2 → d4. The control unit 110 sets the “d3” channel (first channel after rearrangement) in the channel selection unit 102b, and the channel selection unit 102b selects the “d3” channel. The demodulation / combination unit 121 performs demodulation processing of the “d3” channel, calculates reception quality information, and outputs the received quality information to the control unit 110. Further, the demultiplexing unit 104 b extracts PSI / SI information and the like and outputs the extracted information to the control unit 110.

The control unit 110 performs reception determination based on these pieces of information (S1409). When the control unit 110 compares the reception quality of the “d3” channel with the reception quality of the reception channel of the channel selection unit 102a and determines that the reception quality of the “d3” channel is larger (good), Further, the sequence ID is acquired from the PSI / SI information, and it is determined whether or not it matches the sequence ID of “station name i”. When the acquired sequence ID matches the sequence ID of “station name i”, it is determined as an affiliated station (YES in S1409), and the discovered affiliated station channel is received after diversity combining (S1410), and this flow is terminated. To do.

If the acquired sequence ID does not match the sequence ID of “station name i”, or if it is determined that the reception quality of the “d3” channel is lower (bad) than the reception quality of the channel selection unit 102a, in S1408. The above processing is performed in the rearranged order. If there is no other affiliated station channel (NO in S1409), the reception channel before channel search is received after diversity combining processing (S1410), and this flow is terminated.

In the process of searching for a relay station or affiliated station of the second broadcast standard in step S1406 and step S1408, it is second that the reception quality is higher than the reception channel of the first broadcast standard received by the channel selection unit 102a. One condition was set for switching to a broadcast standard relay station or affiliated station. However, when the user wants to view the broadcast program of the second broadcast standard with priority over the first broadcast standard, it can be viewed even if the reception quality of the second broadcast standard is worse than the reception quality of the first broadcast standard. If a sufficient reception quality can be ensured, one condition for switching to the relay station or affiliated station of the second broadcasting standard may be cleared. In other words, if the relay station ID or the sequence ID matches the relay station or the affiliated station of the second broadcast standard, the reception channel may be switched from the first broadcast standard to the second broadcast standard.

In the present embodiment, the example in which the program of the first broadcast standard is received as the initial state has been described, but the same can be said for the case of receiving the program of the second broadcast standard as the initial state.
Furthermore, after searching without distinguishing between the relay station of the first broadcast standard and the affiliated station, search without distinguishing between the relay station of the second broadcast standard and the affiliated station, or the relay station of both broadcast standards It is also possible to consider an embodiment in which a search is performed without distinguishing between and affiliated stations.

In the above embodiments, ISDB-T, which is a Japanese terrestrial digital broadcasting standard, is described as an example. A network ID is used as a relay station determination method, and a sequence ID is used as an affiliate station determination method. However, the present invention is not limited to this, and when different information is used for the determination method of the relay station or affiliated station depending on the broadcast standard, information corresponding to the broadcast standard may be used.
Thus, the embodiment described so far is only an example and does not limit the present invention. While different embodiments can be considered based on the spirit of the present invention, all fall within the scope of the present invention. For example, this embodiment is widely applied to in-vehicle broadcast receivers, mobile phones using so-called one-seg reception, mobile information terminals having a broadcast reception function, and receivers used while moving. be able to.

101, 102: Antenna unit, 102: Channel selection unit, 103: Demodulation unit, 104: Demultiplexing unit, 105: A / V decoding unit, 106: Audio output unit, 107: Presentation processing unit, 108: Video output unit, 109 : Broadcast reception unit, 110: control unit, 111: storage unit, 112: CH selection unit, 113: position information detection unit, 114: bidirectional communication unit, 115: broadcast station information reliability correction unit, 116: reception device, 117: Network, 118: Center server, 119: Broadcasting station information database, 120: Broadcasting station information reception system correction unit, 121: Demodulation / combination unit, 122: 2-input compatible A / V decoding unit, 501, 503, 801 Broadcast station information correction diagram, 502, 504, 802, 1301, 1302: Broadcast station information.

Claims

A receiving device for receiving a broadcast signal,
A broadcast receiver for receiving the broadcast signal;
A storage unit for storing reception system identification information including information relating to the configuration of the broadcast reception unit;
A position detector for detecting position information of the receiving device;
A two-way communication unit that transmits and receives information to and from an external network;
A control unit for controlling the operation of the receiving device;
The control unit is
Supplying the receiving system identification information and the position information detected by the position detection unit to the bidirectional communication unit and transmitting it to the network;
A broadcast station including channel information of a receivable broadcast station at a position indicated by the position information transmitted in accordance with the reception system identification information and position information from an external device connected to the network, and signal strength information thereof Receiving the information in the bidirectional communication unit;
A receiving apparatus that controls the receiving apparatus so that the broadcast receiving unit receives the broadcast signal based on the broadcast station information.
The receiving device according to claim 1,
A broadcast station information reliability correction unit for correcting the broadcast station information;
The broadcast station information has the information version information,
The controller is
The broadcast station information reliability correction unit corrects the broadcast station information according to the version information,
A receiving apparatus that controls the receiving apparatus so that the broadcast receiving unit receives the broadcast signal based on the corrected broadcasting station information.
A receiving device for receiving a broadcast signal,
A broadcast receiver for receiving the broadcast signal;
A storage unit for storing reception system identification information including information relating to the configuration of the broadcast reception unit;
A position detector for detecting position information of the receiving device;
A two-way communication unit that transmits and receives information to and from an external network;
A broadcasting station information receiving system correcting unit that corrects information received by the bidirectional communication unit;
A control unit for controlling the operation of the receiving device;
The control unit is
Supplying position information detected by the position detection unit to the bidirectional communication unit and transmitting it to the network;
Broadcast station information including channel information of a receivable broadcast station at a position indicated by the position information transmitted from an external device connected to the network in accordance with the position information and information on its signal strength is bidirectional. Received by the communication department,
The broadcast station information reception system correction unit corrects the received broadcast station information based on the reception system identification information,
A receiving apparatus that controls the receiving apparatus so that the broadcast receiving unit receives the broadcast signal based on the corrected broadcasting station information.
The receiving apparatus according to claim 3,
A broadcast station information reliability correction unit for correcting the broadcast station information;
The broadcast station information has version information of the information,
The controller is
The broadcast station information reliability correction unit corrects the broadcast station information according to the version information,
A receiving apparatus that controls the receiving apparatus so that the broadcast receiving unit receives the broadcast signal based on the corrected broadcasting station information.
The receiving apparatus according to claim 1 or 2,
The reception system identification information includes information regarding any of the antenna mounting locations of the broadcast receiving unit, the number of the antennas, the height of the vehicle on which the receiving device is mounted, and the type of the vehicle. A receiving device.
The receiving apparatus according to claim 2 or 4,
The version information of the broadcasting station information is a numerical value associated with the newness of the broadcasting station information.
The receiving apparatus according to claim 1 or 2,
The controller is
The receiving apparatus is controlled so that the broadcast receiving section searches for a channel of a relay station or affiliated station that can be received and selected in order from the channel with the largest signal strength data included in the broadcast station information. Receiving device.
The receiving apparatus according to claim 1 or 2,
The broadcast receiving unit has a plurality of antennas,
The controller is
One of the antennas receives the broadcast program selected by the user of the receiving device, and the other antenna can select and receive the channel in order from the channel with the largest signal strength data included in the broadcast station information, and can be received. A receiving apparatus that controls the receiving apparatus to search for a channel of a relay station or an affiliated station.
A receiving apparatus that has a plurality of antennas and receives broadcast signals of a plurality of broadcasting systems including a first broadcasting system and a second broadcasting system,
A broadcast receiver for receiving the broadcast signal;
A storage unit for storing reception system identification information including information relating to the configuration of the broadcast reception unit;
A position detector for detecting position information of the receiving device;
A two-way communication unit that transmits and receives information to and from an external network;
A control unit for controlling the operation of the receiving device;
The control unit is
Supplying the receiving system identification information and the position information detected by the position detection unit to the bidirectional communication unit and transmitting it to the network;
Channel information of the broadcast station of the first broadcasting system that can be received at the position indicated by the position information and the signal transmitted from an external device connected to the network according to the reception system identification information and position information Broadcast station information of the first broadcast system including information on the intensity, channel information of the broadcast station of the second broadcast system that broadcasts the same program as the broadcast station of the first broadcast system, and information on the signal strength thereof Broadcast station information of a second broadcasting system including the two-way communication unit,
A receiving apparatus that controls the receiving apparatus so that the broadcast receiving unit receives the broadcast signal based on broadcast station information of the first and second broadcast systems.
The receiving device according to claim 9, wherein
The broadcast receiving unit has a plurality of antennas,
The controller is
Any one of the antennas receives a broadcast program of a broadcast method selected from the plurality of broadcast methods,
A broadcast station of a broadcasting system that is sequentially selected from the plurality of broadcasting systems is selected and received by another antenna in order from the channel with the largest signal strength data included in the broadcasting station information, and can be received. A receiving apparatus that controls the receiving apparatus to search for a channel of a station.
The receiving apparatus according to claim 3,
The receiving apparatus, wherein a user of the receiving apparatus sets a correction value used when the broadcasting station information receiving system correcting unit corrects the broadcasting station information.
4. A receiving system comprising: the receiving device according to claim 1; and a server device including a bidirectional communication unit that has the broadcasting station information and transmits / receives information to / from the network.