JP2008148240A - Digital broadcast receiver - Google Patents

Abstract

[PROBLEMS] To improve usability when a frequency list is acquired and a channel selection target is expanded by displaying a list of broadcast stations having a prefectural area in the current location and a broadcast area in an adjacent prefecture as a channel selection target.
A digital broadcast receiving apparatus receives a digital broadcast wave, demodulates it, outputs a transport stream, and frequency list information from the transport stream. Broadcasting station data generating means (71 to 73) for generating data of broadcasting stations having each prefectural area as a broadcasting area, current location detecting means (14) for detecting the current location of the receiver, and broadcasting the prefectural area of the current location Channel list display means (74-78) for displaying a list by changing the display form between data of a broadcasting station as an area and data of a broadcasting station having a prefectural area adjacent to the current prefecture as a broadcasting area. Composed.
[Selection] Figure 1

Description

  The present invention relates to a digital broadcast receiver suitable for use in a mobile object such as an in-vehicle television receiver or a portable television receiver.

In a television receiver that does not fix the installation location, such as an in-vehicle television receiver or a portable television receiver, if the service area changes after moving, it is necessary to set information that can be received at the current location in some form. One method is to scan a frequency band that may be set for broadcasting to find a receivable broadcast station and register the found broadcast station as a channel selection target. There is a problem that it takes.
In order to solve this problem, the service area and channel of each broadcasting station are stored in a database in advance, and the current location is within the service area based on position information obtained from GPS (Global Positioning System). There is a method of registering included broadcast stations as channel selection targets.

However, in the case of analog TV broadcasting, the service area of each transmitting station has already been determined, but in the case of digital TV broadcasting, not all transmitting stations have started transmission yet, and the number of transmitting stations has increased from now on. In an excessive period at a certain stage, since the service areas of all transmitting stations are not fixed, the service areas and channels of each broadcasting station cannot be stored in a database in advance.
On the other hand, in the case of digital television broadcasting, a list of broadcasting stations having each prefecture area as a broadcasting area is broadcasted in units of prefectures, and is continuously updated as new stations and relay stations start broadcasting. If this frequency list is acquired, a list of broadcast stations that may be received in each prefecture can be created and displayed.

  Many related technologies have been filed in the past, and typically, a technology for displaying a channel list using a service area database in order to provide channels that can be received at the current location of the vehicle (for example, Patent Document 1), a technique for automatically setting a destination channel arrangement by scanning using a frequency list when the receiver moves and the channel arrangement changes is known (for example, Patent Document 2).

JP 2003-158690 A JP 2006-101304 A

Since the frequency list broadcast in digital television broadcasting is created in units of prefectures, it does not exactly match the area that can be actually received, and may be received in the prefectures next to the broadcasting area. For example, TV Osaka uses Osaka as its broadcasting area, but it can also be received in some areas in the neighboring Hyogo prefecture. Therefore, it is not sufficient to simply display a list of channels of broadcasting stations whose broadcasting area is the current district of the prefecture described in the background art described above.
On the other hand, if a list of channels of broadcasting stations having a broadcasting area in the neighboring prefecture area is also displayed, a large number of broadcasting stations with a low possibility of being received are displayed, and there is a concern that the usability may deteriorate. Patent Documents 1 and 2 described above do not disclose a solution to this problem.

  The present invention has been made in order to solve the above-mentioned problems, obtains a frequency list, displays a list of broadcasting stations that are not limited to the current prefecture as a station to be selected, but also a broadcasting area that is an adjacent prefecture. An object is to obtain a digital broadcast receiving apparatus that improves usability when the station target is expanded.

  In order to solve the above-described problems, a digital broadcast receiving apparatus according to the present invention receives a digital broadcast wave, demodulates it, and outputs a transport stream, and frequency list information from the transport stream. , And broadcast station data generating means for generating broadcast station data having each prefectural area as a broadcast area, current position detecting means for detecting the current position of the receiver, and data of a broadcast station having the prefectural area of the current position as a broadcast area And a channel list display means for displaying a list by changing the display form with data of a broadcasting station having a prefectural area adjacent to the prefectural area of the current location as a broadcasting area.

  Further, the digital broadcast receiving apparatus according to the present invention receives a digital broadcast wave, demodulates it, outputs a transport stream, extracts frequency list information from the transport stream, A broadcasting station having a broadcasting area, broadcasting station data generating means for generating data of the transmitting station of the broadcasting station, current position detecting means for detecting the current position of the receiver, and transmission for detecting position information of the transmitting station A location information detecting means, displaying a map around the current location on the display screen, and on the map, the location information including the current location information of the receiver and the broadcasting station name of the broadcast transmitted from each transmitting station, , And a map information display means for superimposing and displaying, and a channel selection means for selecting a corresponding broadcast station when the displayed broadcast station name is selected. It is.

  According to the present invention, when a frequency list is acquired and a list of broadcasting stations whose broadcasting areas are not only the prefecture area of the current location but also the adjacent prefecture area is displayed as a channel selection target and the channel selection target is expanded, the prefecture area of the current location It is possible to easily distinguish between a broadcasting station having a broadcasting area and a broadcasting station having a neighboring prefecture area as a broadcasting area, and it is easy to select which broadcasting station to select, so that the usability can be improved.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing an internal configuration of a digital broadcast receiving apparatus according to Embodiment 1 of the present invention.
As shown in FIG. 1, the digital broadcast receiving apparatus includes a broadcast antenna 1, a tuner 2, an OFDM (Orthogonal Frequency Division Multiplexing) demodulator 3, a demultiplexer 4, an audio decoder 5, and a control. Unit 7, video decoder 6, audio output unit 8, synthesis unit 9, graphics generation unit 10, video output unit 11, GPS antenna 12, GPS signal reception unit 13, and GPS signal processing unit 14 And the memory 15.

In FIG. 1, digital broadcast radio waves are received by a broadcast antenna 1 and input to a tuner 2. The tuner 2 extracts the frequency component of the channel to be selected and outputs it to the OFDM demodulator 3. The OFDM demodulator 3 demodulates the frequency component into a digital signal and supplies it to the demultiplexer 4 as a transport stream defined by MPEG2 (Moving Picture Experts Group level-2). The demultiplexer 4 separates the transport stream into an audio stream, a video stream, and a carousel, and supplies them to the audio decoder 5, the video decoder 6, and the control unit 7, respectively.
The audio stream is decoded by the audio decoder 5 and output as an audio output via the audio output unit 8. The video stream is decoded by the video decoder 6 and input to the synthesizing unit 9. In addition, the output of the graphics generation unit 10 is supplied to the combining unit 9, and these are combined and output as a video output via the video output unit 11.

On the other hand, the carousel is input to the control unit 7 and used to create a frequency list / change information to be described later. Details will be described later.
A signal from the GPS is received by the GPS signal receiving unit 13 via the GPS antenna 12, demodulated by the GPS signal processing unit 14, and the current location information of the receiver regarding the latitude and longitude is measured, and the control unit 7 is set at regular time intervals. Is input. The memory 15 stores frequency list change information created by the control unit 7, data representing the boundaries of each prefectural area in latitude and longitude, broadcast station names nationwide and their transport stream identifiers.

The frequency list / change information includes the area identification value indicating the service area of each broadcasting station nationwide, the transport stream identifier, the schedule for frequency change and new station placement, the start date of the change work, the number of days required for the change, and before and after the change. The physical channel number of the transmitting station, the physical channel number of the transmitting station without change, the postal code of the transmitting station, etc. are included. The frequency list / change information is updated as needed according to changes in the situation.
The area identification value is a value obtained by adding “64” to the area identification value in the service ID of each service, and corresponds to a service area in units of prefectures of each broadcasting station. However, in addition to a single prefecture, there are areas that combine multiple prefectures, such as the Kanto area, and in the case of Hokkaido, Hokkaido is divided into “7”, such as Sapporo and Hakodate. There is a region. The transport stream identifier has a one-to-one correspondence with each broadcasting station, and the broadcasting station can be specified using the transport stream identifier.

  The broadcast antenna 1, the tuner 2, the OFDM demodulator 3, and the demultiplexer 4 described above are one component of the present invention, “digital that receives and demodulates a digital broadcast wave and outputs a transport stream. The GPS antenna 12, the GPS signal receiving unit, and the GPS signal processing unit 14 function as "broadcast receiving means" and are "constituent detection means for detecting the current location of the receiver", which is one constituent element of the present invention. Function as.

FIG. 2 is a block diagram showing the function of the internal configuration of the control unit 7 shown in FIG. 1, and shows the connection relationship of peripheral blocks.
As shown in FIG. 2, the functional configuration block of the control unit 7 includes a frequency list / change information extraction unit 71, a frequency list / change information comparison unit 72, a frequency list / change information recording unit 73, and a current location determination. A section 74, an adjacent region prefecture determination section 75, a channel list data generation section 76, a remote control signal reception processing section 77, and a graphics creation control section 78.

The frequency list / change information extraction unit 71 has a function of extracting the frequency list / change information from the carousel separated by the demultiplexer 4 and delivering it to the frequency list / change information comparison unit 72. The frequency list / change information comparison unit 72 compares the version of the frequency list / change information delivered by the frequency list / change information extraction unit 71 with the version of the frequency list / change information 151 stored in the memory 15; Depending on the result, the frequency list / change information recording unit 73 is activated to replace the frequency list / change information 153 stored in the memory 15, and the channel list data generation unit 76 is activated to display a channel information list to be described later. Has the function to generate.
The frequency list / change information recording unit 73 is started when the frequency list / change information comparing unit 72 determines that the frequency list is updated as described above, and is stored in the memory 15. It has a function of replacing the change information 153.

The current location / prefecture determination unit 74 compares the positioning information supplied by the GPS signal processing unit 14 with the boundary data 152 of each prefectural region stored in the memory 15 to determine the prefectural region of the current location. The prefectural area determination unit 75 has a function of determining all prefectural areas adjacent to the current prefectural area and controlling the channel list data generation unit 76.
The channel list data generation unit 76 determines the current area of the prefecture from the frequency list / change information 151 stored in the memory 15 when it first determines the current area or when the current area changes. It has a function of reading out information on a broadcasting station and a broadcasting station having each adjacent prefecture as a service area, creating channel list data for each prefecture, and storing it in the memory 15.

  The remote control signal reception processing unit 77 detects a channel list display instruction from the user by operating the remote control 16 and activates the graphics creation control unit 78. The graphics creation control unit 78 performs graphics processing described later. It has a function of starting the generation process of the channel list display screen by the generation unit 10. At this time, the graphics generation unit 10 displays a list by changing the display form between the data of the broadcasting station whose broadcasting area is the current prefecture and the data of the broadcasting station whose broadcasting area is adjacent to the current prefecture. To do.

Therefore, the frequency list / change information extraction unit 71, the frequency list / change information comparison unit 72, the frequency list / change information recording unit 73, the current location / prefecture region determination unit 74, and the adjacent region / prefecture region determination unit in the control unit 7 75 and the channel list data generation unit 76, which is one of the constituent elements of the first invention, “extract frequency list information from the transport stream and generate data of broadcasting stations having each prefecture area as a broadcasting area. It functions as “broadcasting station data generating means”. Further, the current location / prefecture region determination unit 74, the adjacent region / prefecture region determination unit 75, the remote control signal reception processing unit 77, the graphics creation control unit 78, and the graphics generation unit 10 in the control unit 7 are the first invention. The display format is changed between the data of the broadcasting station whose broadcasting area is the current prefecture and the data of the broadcasting station whose broadcasting area is adjacent to the current prefecture. It functions as “channel list display means”.
In the memory 15, the frequency list / change information 151, boundary data 152 of each prefecture, the name of each broadcasting station and its transport stream identifier 153 are allocated and stored.

FIG. 3 is a flowchart cited for explaining the operation of the digital broadcast receiving apparatus according to Embodiment 1 of the present invention.
Hereinafter, the operation of the digital broadcast receiving apparatus shown in FIG. 2 will be described in detail with reference to the flowchart shown in FIG.

As described above, the carousel separated by the demultiplexer 4 is input to the control unit 7. The control unit 7 extracts the frequency list / change information from the carousel by the frequency list / change information extraction unit 71 (step ST301 “Yes”), and is stored in the memory 15 by the frequency list / change information comparison unit 72. The frequency list / change information 151 and the version are compared. When it is determined that the frequency list is updated (step ST302 “Yes”), the control unit 7 transmits the frequency list stored in the memory 15 via the frequency list / change information recording unit 73. The change information 153 is replaced (step ST303).
For this reason, the latest frequency list / change information 151 is always held in the memory 15.

On the other hand, the GPS signal receiving unit 13 regularly monitors whether or not information on latitude and longitude has been input via the GPS antenna 12 (step ST304), and the result of positioning calculation by the GPS signal processing unit 14 is obtained. The supply to the control unit 7 is as described above.
The current location / prefecture determination unit 74 compares the positioning information supplied by the GPS signal processor 14 with the boundary data 152 of each prefectural region stored in the memory 15 to determine the prefectural region of the current location (step ST305). When the prefectural area is changed (step ST306 “Yes”), the adjacent area prefectural area determination unit 75 further determines all prefectural areas adjacent to the current prefectural area (step ST307).

For example, as indicated by an arrow in FIG. 4, if the vehicle moves from point e to point a, the current prefecture area changes from E prefecture to A prefecture. Therefore, the prefecture area adjacent to A prefecture is B prefecture, It becomes C prefecture, D prefecture, and E prefecture.
When the current prefectural area is discriminated for the first time or when the current prefectural area is changed, the channel list data generating unit 76 of the control unit 7 services the current prefectural area from the frequency list / change information 151 stored in the memory 15. The information of the broadcasting stations to be used as the area and the broadcasting stations having the service areas as the neighboring prefectures is read (step ST308), and channel list data is created for each prefecture and stored in the memory 15 (step ST309). FIG. 5 shows an example of the channel list data.

On the other hand, when the remote control signal reception processing unit 77 of the control unit 7 detects a channel list display instruction (button press) from the remote control 16 (step ST310 “Yes”), the graphics generation unit control unit 78 generates the graphics. The unit 10 is controlled to display a channel list on a display screen (not shown) (step ST311). At this time, a list of channels of broadcasting stations whose service area is the prefectural area of the current location is preferentially displayed on the front, and each adjacent prefectural area is selectable (for example, see FIG. 6).
At this time, if the channel list is not displayed, the channel list is displayed. If the channel list is displayed, the channel list is deleted.

FIG. 6 shows an example of a screen display related to the channel list display. FIG. 6A shows an example when a channel list is displayed, and a channel list of the current prefecture A is displayed. Here, the NHK synthesis / A frame is thick, which indicates that the cursor is positioned here, and the cursor moves up and down by the up and down arrow key operations of the remote controller 16.
When the enter key of the remote controller 16 is pressed, the broadcast station indicated by the cursor at that time is selected. In addition, the prefecture area is selected by operating the left and right arrow keys. When the right arrow key is pressed in the state of FIG. 6A, as shown in FIG. 6B, a list of channels in B prefecture is displayed.
Here, an example of a hierarchical display in which a list of channels of broadcasting stations whose service area is the current prefecture is displayed on the front and each adjacent prefecture is displayed on the back is displayed. However, only the tag of each adjacent prefecture area is displayed on the front side so that it can be selected even if the channel list of the broadcasting station whose service area is the current area is preferentially displayed on the front side.

According to the first embodiment described above, control is performed so that not only the prefectural area of the current location, but also the broadcasting stations that have the adjacent prefectural area as the service area are displayed in the channel list. In addition, depending on the current location, there are nearby prefectures and distant prefectures in neighboring prefectures, and there is a difference in the possibility of reception, so it is easy to select broadcast stations in prefectures that can be received by displaying for each prefecture. There is an effect of becoming.
In the first embodiment described above, the channel list screen is divided for each prefecture area, and the prefecture area is selected and displayed. However, for example, as shown in FIG. It may be displayed and edited for each prefecture area, and the color of the frame or background may be changed for each prefecture area. Alternatively, only the character color of the broadcast station name may be changed.

Embodiment 2. FIG.
In the first embodiment described above, the channel list is displayed in a tabular form, but in the second embodiment described below, a map display near the current location is shown as an example of the screen display in FIG. On the map, the current location of the vehicle (digital broadcast receiver), the location of the transmitting station that radiates broadcast radio waves, for example, the location of the transmitting station estimated from the zip code, and the transmitting station The broadcast station name is displayed as a button, and channel selection is performed by selecting and specifying the displayed broadcast station name button. In FIG. 8, the mark indicates the current position of the transmitting station (including the relay station), and the + mark indicates the current position of the vehicle on which the digital broadcast receiver is mounted.

The digital broadcast receiving apparatus according to the second embodiment of the present invention directly refers to the configuration of the digital broadcast receiving apparatus described in the first embodiment. However, the functional configuration of the control unit 7 and the internal data structure of the memory 15 are slightly different.
Hereinafter, the digital broadcast receiving apparatus (control unit 7) according to the second embodiment of the present invention will be described in detail with reference to FIG.

  In the functional configuration of the control unit 7 in the second embodiment, the difference from the first embodiment shown in FIG. 2 is that the functional configuration (frequency list / change information extracting unit in the first embodiment shown in FIG. 71, frequency list / change information comparison unit 72, frequency list / change information recording unit 73, current location prefecture determination unit 74, adjacent region prefecture determination unit 75, channel list data generation unit 76, remote control signal reception processing unit 77, graphics creation This is because a transmitting station position determination unit 79, a map data generation unit 80, and a directivity / field strength data generation unit 81 are added to the control unit 78).

The controller 7 first determines that the transmitting station position determining unit 79 uses the postal code of the transmitting station of each broadcasting station in the frequency list / change information, and the postal code and latitude / longitude correspondence data 154 stored in the memory 15. Acquire data on the latitude and longitude of each transmitting station.
The map data generation unit 80 creates map data in which the data on the latitude and longitude of the transmitting station acquired by the transmitting station position determination unit 79, the current location of the vehicle, and the map data 155 stored in the memory 15 are superimposed, This is supplied to the graphics creation control unit 78. In addition, the graphics creation control unit 78 is supplied with channel list data from the channel list data generation unit 76. For this reason, the graphics creation control unit 78 includes a map generated by the map data generation unit 80, The graphics generation unit 10 is controlled to superimpose and display the channel list data generated by the channel list data generation unit 76, and the graphics generation unit 10 shows an example of the screen configuration in FIG. 8, for example. Screen data can be generated and supplied to a display monitor (not shown) to obtain a desired display.
At this time, the user can select a desired broadcast station by operating the remote controller 16 and selecting and specifying the broadcast station name displayed on the screen.

The directivity / field strength data generation unit 81 generates information on the transmission output of the transmitting station and the transmission direction of the radio wave from the extracted frequency list information and supplies the information to the graphics creation control unit 78. In addition, a map in which data relating to the latitude and longitude of the transmitting station, the current location of the vehicle, and the map data 155 stored in the memory 15 are superimposed is supplied from the map data generation unit 80 to the graphics creation control unit 78. Has been.
Therefore, the graphics creation control unit 78 is generated by the map generated by the map data generation unit 80, the channel list data generated by the channel list data generation unit 76, and the directivity and electric field strength data generation unit 81. The graphics generation unit 10 is controlled so that the directivity and electric field strength data to be superimposed are displayed, and the graphics generation unit 10 generates, for example, screen data whose example screen configuration is shown in FIG. The desired display can be obtained by supplying to a display monitor (not shown). The memory 15 stores the frequency list / change information 151, boundary data 152 of each prefecture, the name of each broadcasting station and its transport stream identifier 153, and the correspondence data 154 of the zip code and latitude / longitude. The map data 155 is area-allocated and stored.

Here, as shown in FIG. 10 as an example of the screen configuration, the information (electric field strength) regarding the transmission output of the transmitting station uses the number of concentric circles a corresponding to the electric field strength, and the transmission of radio waves at the transmitting station. Information about the direction is displayed using an arc b having an angle corresponding to the transmission direction.
At this time, the transmission output of the transmitting station is described in the frequency list / change information as well as the physical channel number. The greater the output, the greater the number of concentric circles. If the transmission direction of the radio wave at the transmitting station can be acquired by frequency list / change information or other means, concentric circles can be displayed as arcs according to the transmission direction. At this time, the frequency list / change information 151 of the memory 15 holds information on the transmission output and transmission direction of each transmitting station in association with each other.

  At this time, the channel list data generation unit 76 broadcasts with low reception possibility at the current location based on the transmission output of the transmitting station and the information on the transmission direction of the radio waves generated by the directivity / field strength data generation unit 81. It is also possible to output to the graphics creation control unit 78 excluding the station name. As a result, meaningless channel selection can be avoided, and usability can be further improved.

In order to operate as described above, the frequency list / change information extraction unit 71, the frequency list / change information comparison unit 72, the frequency list / change information recording unit 73, and the current location / region determination unit 74 in the control unit 7 described above. The adjacent region prefecture determination unit 75 and the channel list data generation unit 76 are one constituent element of the second invention, “extract frequency list information from the transport stream, and set each prefecture region as a broadcast area. Functioning as “broadcasting station data generating means for generating broadcasting station transmitting station data and broadcasting station data”, and the transmitting station position determination unit 79 detects “transmitting station position information detecting the position information of the transmitting station”. Functions as a means.
In addition, the current location / prefecture region determination unit 74, the adjacent region / prefecture region determination unit 75, the channel list data generation unit 76, the remote control signal reception processing unit 77, the graphics creation control unit 78, and the map data generation unit in the control unit 7 80, the directivity / field strength data generation unit 81, and the graphics generation unit 10 are one of the constituent elements of the second aspect of the present invention, “display a map around the current location on the display screen and receive it on the map. It functions as “map information display means for displaying the current location information of the aircraft and the location including the broadcast station name of the broadcast transmitted from each transmitting station in a superimposed manner”.

  According to the above-described second embodiment, broadcasting stations having the neighboring prefecture area as a broadcasting area are also displayed in the channel list, and thereby, more receivable broadcasting stations can be displayed. At that time, it is possible to easily discriminate between a broadcasting station whose broadcasting area is the prefectural area of the current location and a broadcasting station whose broadcasting area is the neighboring prefecture area, and the channel selection operation becomes easy. In addition, on the map, the current location, the location of the transmitting station, and the name of the broadcast station to be transmitted are displayed. Further, for each transmitting station, information on the transmission output of the transmitting station that is likely to be received and the transmission direction of the radio wave By displaying also, it is possible to obtain an effect that it is easy to visually recognize and select a selectable broadcasting station.

In the first embodiment and the second embodiment described above, the functions of the respective blocks 71 to 81 constituting the control unit 7 are the same as those shown in FIG. This is achieved by reading and sequentially executing the program, and is expressed by dividing it into functional blocks for the sake of simplicity.
Note that all of the functions of each block described above may be realized by software, or at least a part thereof may be realized by hardware.

It is a block diagram which shows the internal structure of the digital broadcast receiver concerning Embodiment 1 of this invention. It is a function expansion block diagram of the control part shown in FIG. It is the flowchart quoted in order to demonstrate operation | movement of the digital broadcast receiver concerning Embodiment 1 of this invention. It is the figure quoted in order to demonstrate operation | movement of the digital broadcast receiver concerning Embodiment 1 of this invention. It is a figure which shows an example of the frequency list produced | generated by the digital broadcast receiver concerning Embodiment 1 of this invention. It is a figure which shows an example of the screen structure displayed from the digital broadcast receiver concerning Embodiment 1 of this invention. It is a figure which shows an example of the screen structure displayed from the digital broadcast receiver concerning Embodiment 1 of this invention. It is a figure which shows an example of the screen structure displayed from the digital broadcast receiver concerning Embodiment 2 of this invention. It is a function expansion block diagram of the control part of the digital broadcast receiver concerning Embodiment 2 of this invention. It is a figure which shows an example of the screen structure displayed from the digital broadcast receiver concerning Embodiment 2 of this invention.

Explanation of symbols

  1 broadcast antenna, 2 tuner, 3 OFDM demodulator, 4 demultiplexer, 5 audio decoder, 6 video decoder, 7 control unit, 8 audio output unit, 9 synthesis unit, 10 graphics generation unit, 11 video output unit, 12 GPS Antenna, 13 GPS signal reception unit, 14 GPS signal processing unit, 15 memory, 71 frequency list / change information extraction unit, 72 frequency list / change information comparison unit, 73 frequency list / change information recording unit, 74 current location / prefecture determination unit, 75 adjacent region prefecture determination unit, 76 channel list data generation unit, 77 remote control signal reception processing unit, 78 graphics creation control unit, 79 transmitting station position determination unit, 80 map data generation unit, 81 directivity / field strength data generation unit .

Claims (11)

A digital broadcast receiving means for receiving and demodulating a digital broadcast wave and outputting a transport stream;
Broadcast station data generating means for extracting frequency list information from the transport stream and generating broadcast station data with each prefecture area as a broadcast area;
Current location detection means for detecting the current location of the receiver;
Channel list display means for displaying a list by changing the form of display between data of a broadcasting station having the prefecture area of the current location as a broadcasting area and data of a broadcasting station having a prefecture area adjacent to the prefecture area of the current location as a broadcasting area;
A digital broadcast receiver characterized by comprising: The channel list display means includes
2. The digital broadcast receiving apparatus according to claim 1, wherein a channel list is created for each prefecture area, a prefecture area name of the current prefecture area and an adjacent prefecture area are displayed, and a channel list of the selected prefecture area is displayed. The channel list display means includes
2. The digital broadcast reception according to claim 1, wherein the display form is changed and displayed in a list on a single screen with a broadcasting station having the prefectural area of the current location as a broadcasting area and broadcasting station data having a prefectural area as a broadcasting area. apparatus. The channel list display means includes
4. The digital broadcast receiving apparatus according to claim 3, wherein a list is displayed by changing a broadcast station name or a background color for each prefecture area. The channel list display means includes
4. The digital broadcast receiving apparatus according to claim 3, wherein a size of a frame for displaying the broadcast station name is changed for each prefecture area. A digital broadcast receiving means for receiving and demodulating a digital broadcast wave and outputting a transport stream;
Broadcast station data generating means for extracting frequency list information from the transport stream and generating each station as a broadcasting area, and data of a transmitting station of the broadcasting station,
Current location detection means for detecting the current location of the receiver;
Transmitting station position information detecting means for detecting the position information of the transmitting station;
A map that displays a map around the current location on a display screen, and displays the current location information of the receiver and a location that includes a broadcast station name of a broadcast transmitted from each transmitting station on the map. Information display means;
Channel selection means for selecting a corresponding broadcast station when the displayed broadcast station name is selected,
A digital broadcast receiver characterized by comprising: The broadcasting station data generation means includes
From the extracted frequency list information, generate the postal code data corresponding to the broadcast station name and the location of the transmission station of each broadcast station as the broadcast area of each prefecture area,
The transmitting station position detecting means includes
7. The digital broadcast receiving apparatus according to claim 6, wherein the position of each transmitting station is detected from a zip code corresponding to the position of each transmitting station generated by the broadcasting station data generating means. The broadcasting station data generation means includes
From the extracted frequency list information, generate at least one of information related to the transmission output of the transmitting station or the transmission direction of the radio wave,
The map information display means includes:
7. The digital broadcast receiving apparatus according to claim 6, wherein information relating to the transmission output of the transmitting station or the transmission direction of radio waves generated by the broadcasting station data generating means is displayed superimposed on the map. The map information display means includes:
9. The digital broadcast receiving apparatus according to claim 8, wherein information relating to the transmission output of the transmitting station generated by the broadcasting station data generating means is displayed using a number of concentric circles corresponding to the transmission output. The map information display means includes:
9. The digital broadcast receiving apparatus according to claim 8, wherein information relating to the transmission direction of the radio wave at the transmitting station generated by the broadcasting station data generating means is displayed using an arc having an angle corresponding to the transmission direction. The map information display means includes:
Based on at least one of the transmission output of the transmitting station or the information on the transmission direction of the radio wave generated by the broadcasting station data generating means, excluding the name of the broadcasting station that is unlikely to be received at the current location, and displaying 9. The digital broadcast receiver according to claim 8, wherein

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