JP2011082804A - Digital broadcast receiver for vehicle - Google Patents

Abstract

The present invention provides a vehicular digital broadcast receiving apparatus capable of efficiently acquiring and displaying data broadcast contents required according to the position of a vehicle from a digital broadcast station that can be received while the vehicle is moving.
A digital broadcast receiving apparatus includes: a receiving unit that receives digital broadcast radio waves; a data acquisition unit that acquires data broadcast content from the received digital broadcast radio waves; a memory that stores the data broadcast content; Display control means for editing and displaying the stored data broadcast content, the receiving means performs channel scanning while changing the frequency between predetermined frequencies every predetermined time, and the data acquiring means is selected by channel scanning. Data broadcast content from at least one digital broadcast station is acquired.
[Selection] Figure 1

Description

  The present invention relates to a vehicular digital broadcast receiving apparatus, and more specifically, obtains and displays data broadcast content required according to the position of the vehicle from a digital broadcast station that can be received while the vehicle is moving. The present invention relates to a vehicular digital broadcast receiving apparatus.

  As for data broadcasting, data broadcasting in BS digital broadcasting and terrestrial digital broadcasting is well known, and TV broadcasters often provide it as ancillary services for program broadcasting, but now main services and sub services In many cases, the content of data broadcasting is the same. In the future, different data broadcasting will be provided for each service, and the use of data broadcasting is expected to increase.

  Currently, there are data broadcasts for regions that provide content tailored to the reception area (such as local data broadcasts by the Japan Broadcasting Corporation).

  In addition to broadcasters, local governments and stores are also considering the use of weak radio waves to build small-scale digital data distribution systems and perform data broadcasting (referred to as “one-segment local services”). ).

  In this way, there is a tendency for broadcasters and content to be provided to increase. However, current digital receivers are designed based on the conventional services associated with programs, in other words, tied to main channels and programs. It is hard to say that it is easy to use because it is designed.

  Patent Document 1 discloses a digital broadcast reception display device. This digital broadcast reception display device identifies genre information on a map that matches the genre information of a broadcast program to be received, and displays corresponding information (such as a store).

  Patent Document 2 discloses a leaflet information distribution system. This distribution system automatically selects only leaflet information according to the consumer's leaflet needs and displays it on the digital broadcast receiver.

  Patent Document 3 discloses a system that receives navigation information related to a broadcast program from a data broadcast and stores it in a memory of a navigation device.

JP 2009-60190 A JP 2001-357287 A Japanese Patent Laid-Open No. 2004-7651

  In the invention described in Patent Document 1, since only the genre information on the map that matches the genre information of the program being viewed is displayed, even if there is useful information related to the genre information in the program that is not viewed, I miss it.

  In the invention described in Patent Document 2, only pre-structured data broadcasting can be used, and use in vehicles is not considered.

  In the invention described in Patent Document 3, information that the user has already specified as a destination can only be stored in the navigation device.

  The present invention efficiently obtains and displays data broadcast content required by a user according to the position of a vehicle from a digital broadcasting station that can be received while the vehicle is moving when the vehicle is mounted on the vehicle and moves. An object of the present invention is to provide a vehicular digital broadcast receiving apparatus.

  The present invention provides a digital broadcast receiver mounted on a vehicle. The digital broadcast receiving apparatus selects a receivable digital broadcast station while performing channel scanning, receives a digital broadcast radio wave from the selected digital broadcast station, and receives data broadcast content from the received digital broadcast radio wave. A data acquisition means for acquiring, a memory for storing the acquired data broadcast content, and a display control means for editing and displaying the data broadcast content stored in the memory, wherein the reception means has a predetermined frequency every predetermined time. The data acquisition means acquires data broadcast content from at least one or more digital broadcast stations selected by the channel scan.

  According to the present invention, regular monitoring is performed for all receivable broadcast contents regardless of whether the broadcast station is currently being viewed or a broadcast station or broadcast content that meets a specific condition. It is possible to edit and display the latest broadcast content without requiring any operation. As a result, it is possible to appropriately and timely provide information that the user who is moving in the vehicle wants to know most.

  According to an aspect of the present invention, the information processing apparatus further includes input means for allowing the user to input display conditions for the data broadcast content, and the display control means preferentially displays the data broadcast content corresponding to the input display conditions.

  According to this aspect of the present invention, the user's preference is input as a display condition, or when the apparatus is used in a navigation apparatus, the information obtained by destination input is used as the display condition. By displaying data broadcasting content corresponding to (same or similar) with priority (higher), desired information can be quickly browsed even on a narrow screen.

  According to one aspect of the present invention, it further comprises distance estimation means for estimating the distance between the current position of the vehicle and a receivable digital broadcast station, and the display control means includes data from the digital broadcast station with a short estimated distance. Display broadcast content with priority.

  According to this aspect of the present invention, it is possible to preferentially view the traveling area information by preferentially displaying the information of the broadcasting station with a short distance from the vehicle. Thereby, for example, information that is just useful and familiar to the user, such as information on a time sale at a peripheral supermarket, a local accident, or construction, can be provided with priority.

  According to an aspect of the present invention, the information processing device further includes position information extraction means for extracting position information from the data broadcast content, and the display control means acquires map information including the extracted position information, and the map information is extracted from the position information. Are displayed together with the extracted data broadcast content.

  According to this aspect of the present invention, when digital broadcast content includes location information (address text or structured location information tag), the content is embedded in a map and displayed so that the user can see the content at a glance. It is possible to grasp the related place. Further, when data broadcasting contents of a plurality of channels are acquired, a list can be displayed on a map without a channel switching operation, so that the user can refer to a plan such as shopping or vacation.

  According to one aspect of the present invention, it is further provided with similarity determination means for determining the similarity between a plurality of data broadcast contents stored in the memory, and the display control means has a plurality of similarities greater than or equal to a predetermined similarity. A predetermined number of data broadcast contents are displayed in the order from the newest update date.

  According to one aspect of the present invention, only digital broadcast contents with a high degree of similarity are retrieved with the latest update date and time, and the others are not displayed, or the display priority is lowered, thereby effectively utilizing the display screen. Quickly grasp many types of information. In other words, according to one aspect of the present invention, when the acquired digital broadcast contents are very similar, similar information is displayed side by side, which prevents other useful information from being displayed. Can be prevented.

It is a block diagram which shows the structure of the digital broadcast receiver of this invention. It is a block diagram which shows the function of the broadcast radio wave receiving means 10 and the data acquisition means 20 of FIG. It is a figure which shows the detail of the function of the control means 40 of FIG. It is the figure which showed the example which preferentially displays the data broadcast content from the digital broadcasting station with a short estimated distance. It is a figure which shows an example of the map information displayed with the data broadcast content. It is a flowchart which shows the acquisition operation | movement of data broadcasting content. It is a flowchart for displaying preferentially the data broadcast content desired by the user. It is a flowchart for displaying data broadcasting content with priority according to the distance to the broadcasting station. 6 is a flowchart for preferential display of similar data broadcast content.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a digital broadcast receiving apparatus according to an embodiment of the present invention. The digital broadcast receiving apparatus 100 is mounted on a vehicle and moves as the vehicle travels.

  The digital broadcast receiving apparatus 100 includes a broadcast radio wave receiving means 10, a data acquisition means 20, a memory 30, a control means 40, a display means 50, a user interface (I / F) 60, and an input means 70. The digital broadcast receiving apparatus 100 may be configured as a car navigation apparatus or a part thereof.

  The broadcast radio wave receiving means 10 includes an arbitrary antenna 15 such as a whip (rod) antenna, a dipole antenna, a Yagi / Uda antenna, a parabolic antenna, a loop antenna, a dielectric antenna, etc. The digital data is extracted from the radio wave of digital broadcasting. Digital data is obtained by multiplexing video data, audio data, data broadcasting data, and the like of a plurality of channels in accordance with a predetermined standard. Examples of the predetermined standard include MPEG-2 and MPEG-4. In the case of one-segment broadcasting, H.264 is used. H.264 (MPEG-4 AVC) is used.

  The data acquisition means 20 separates and extracts video content (video data, audio data, etc.) and data broadcast content of each channel from the multiplexed data. In particular, audio data is compressed by the AC3 (Audio Code number 3) standard or AAC (Advanced Audio Coding) in the case of one-segment broadcasting. The data acquisition unit 20 can be realized by either hardware or software. The data acquisition unit 20 may be capable of decrypting encrypted digital data. Thereby, it is possible to cope with a copyright protection method such as RMP (Rights Management & Protection).

  FIG. 2 is a block diagram showing functions of the broadcast radio wave receiving means 10 and the data acquisition means 20 of FIG. The tuner 110 searches for a receivable digital broadcast station while performing channel scanning, and receives digital broadcast radio waves from the receivable digital broadcast station. Although two tuners 110 are illustrated in FIG. 2, at least one tuner may be used. The reason for providing two or more tuners is to execute the function of the present invention when viewing a terrestrial digital TV program, or to enable reception even in a place where the reception environment is bad. In particular, in the present invention, it is assumed that data broadcast contents are acquired from a plurality of channels (broadcast stations), so it is inherently desirable to provide two or more tuners.

  The demodulator 112 demodulates the digital broadcast radio wave received by the tuner 110 and extracts a multiplexed digital data signal (for example, a multiplexed TS (Transport Stream)). The multiplexed digital data signal includes video data, audio data, data broadcasting data, and the like for each channel. The extracted digital data signal is separated and extracted into audio data 116, video data 118, and data broadcasting data 120 of each channel in a TS decoder (DEMUX) 114. The audio data 116 and the video data 118 are temporarily stored in a buffer (not shown), subjected to necessary processing as audio or video under the control of the control means 40 of FIG. 1, and then output to the display means 50. The

  Returning to FIG. 1, the memory 30 stores data broadcast data 120 for each received channel (program). The memory 30 stores various information such as map information and broadcast station information in advance. The memory 30 can be configured by an arbitrary memory such as a nonvolatile memory such as a flash memory or a volatile memory such as a DRAM. The memory 30 can also be configured by an external memory such as an SD card or a hard disk device. Particularly in the present invention, since data broadcast data of a plurality of channels is stored, a memory having a relatively large capacity (at least several GB or more) is desirable. The memory 30 may be an external memory of the digital broadcast receiving apparatus 100.

  The control means 40 is a computer (dedicated IC) having a central processing unit (CPU) and a memory. The control means 40 executes various controls in response to signals from each means. Details of the control means 40 will be described later.

  The display unit 50 presents the video content and the data broadcast content adjusted by the control unit 40 to the user in a form that can be viewed by the user. Specifically, the display unit 50 presents video and audio to the user through an image display device such as a liquid crystal display or an organic EL display or an audio output device such as a speaker.

  The user I / F 60 is connected to the input unit 70 and receives input information from the user. The input means 70 may have any form such as button input or wireless input using a remote controller. The input means 70 may be realized by a touch panel image display device.

  FIG. 3 is a diagram showing details of the function of the control means 40. The display control unit 410 reads data temporarily stored in the buffer, decodes the data, and outputs video or audio data as video content. More specifically, the display control unit 410 controls the output timing of video or audio data using time information such as PTS (Presentation Time Stamp) information. The display control unit 410 edits the data broadcast data (contents) stored in the memory 30 and outputs it to the display means 50. The display control unit 410 preferentially displays the data broadcast content corresponding to the display condition of the data broadcast content input from the input unit 70 by the user.

  The distance estimation unit 420 is a digital broadcasting station that can receive the current position of the vehicle and the information from the information such as the data broadcast content and received signal level of each channel acquired from the receiving means 10 or the GPS signal received by the vehicle or the navigation device. And estimate the distance. The display control unit 410 preferentially displays data broadcast content from a digital broadcasting station with a short estimated distance on the display unit 50.

  FIG. 4 is a diagram illustrating an example in which data broadcasting content from a digital broadcasting station with a short estimated distance is displayed with priority. In FIG. 4, data broadcasting contents broadcast by A shopping street, C ward, D city, E television station, and F broadcasting station with a short estimated distance are displayed side by side from top to bottom. The time in parentheses is the time when each content was broadcast. Among these, the traffic regulation information (450) broadcasted by the broadcasting station in the C ward is displayed in more detail in the right frame 460 of the figure. The information in the frame 460 is displayed as a result of the user selecting the traffic regulation information (450) of the C ward via the input means 70. In this way, not only the headline information (450) but also its details (460) can be displayed as timely information. As a display method, the information may be displayed in different colors so that it can be discriminated whether it is regional information by a one-segment local service such as A shopping street or information by a broadcaster such as an E television station. In FIG. 4, the regional information is displayed at the top. By doing so, there is an advantage that information familiar to the user can be preferentially viewed.

  The position information extraction unit 430 extracts position information from the data broadcast content stored in the memory 30. The display control unit 410 acquires map information including the extracted position information from the memory 30, and causes the display unit 50 to display the map information together with the data broadcast content from which the position information is extracted. When the vehicle has a navigation device (not shown), the map information may be acquired from a memory included in the navigation device or an external server.

  FIG. 5 is a diagram showing an example of map information displayed on the display means 50 together with the data broadcast content. In FIG. 5, map information 512 is displayed together with the received data broadcast content 510. Three pieces of information are displayed as the data broadcast content 510. These three pieces of information are obtained from a plurality of received channels (programs and contents). In this case, the position information extraction unit 430 extracts the position information of the hotel A and the building B in the data broadcast content 510. The display control unit 410 displays map information 512 including the position information. Since the vehicle is currently at the position of the arrow 514 in the figure, the hotel A (516) and the building B (518) in the area in the traveling direction of the vehicle are displayed. When the user is interested in the information of the hotel A and the building B in the data broadcast content 510, the user can confirm their positions on the map at a glance.

  As described above, when the data broadcast content includes location information (address text, structured location information tag), the location information is embedded in the map and displayed, so that the user can see the location related to the content at a glance ( Location, facility). In particular, according to the present invention, the data broadcast content 510 is not limited to the program being viewed by the user, and the content of a plurality of channels received by channel scanning can be displayed in parallel. There is an advantage that you can browse the place you want to see. In addition, since broadcast data by one-segment local service for each shopping street or store and data broadcast content from the broadcaster's local data broadcast can be displayed together, the amount of information that can be displayed can be increased and the contents can be diversified. .

  The similarity determination unit 440 of FIG. 3 determines the similarity between the plurality of data broadcast contents stored in the memory 30. The display control unit 410 causes the display unit 50 to display a predetermined number of data broadcast contents in order of the latest update date / time from a plurality of data broadcast contents having a similarity equal to or higher than a predetermined similarity.

  FIG. 6 is a flowchart showing the data broadcast content acquisition operation. In step S102, the frequency range of the data broadcast received by the tuner 110 and the frequency band for each channel are set. This is performed in order to set a frequency range to be tuned (scanned) in advance because the frequency range used by digital (data) broadcasting is different from the frequency band (width) of each channel. For example, in the case of terrestrial digital (data) broadcasting, the frequency range is 300 MHz from 470 to 770 MHz, and each channel has a frequency width of 5.6 Mhz at intervals of 6 MHz. Set these values. The value for this setting is stored in advance in the memory 30 and is automatically set or set by selection via the input means 70 by the user.

  In step S104, it is determined whether the current frequency of the tuner 110 is within the set data broadcasting frequency range. If the frequency is within the range, in step S106, a channel scan is performed to search for a receivable channel. In this channel scan, it is checked whether or not each channel can be received while tuning the frequency band of each channel in order at the channel interval set in step S102. Digital (data) broadcasting stations include those by local operators (shopping streets, etc.) that use relatively weak radio waves, in addition to those by broadcasters (TV stations, etc.) that use licenses and use strong radio waves. is there. In the former case, reception is possible by designating the corresponding channel, but in the latter case, since the broadcast radio wave is weak, it is necessary to sequentially find out whether or not reception is possible while performing channel scanning. In particular, in a digital receiver mounted on a moving vehicle as in the present invention, since the reception sensitivity of broadcast radio waves varies depending on the position of the vehicle, a channel scan for picking up weak radio waves is indispensable.

  If a receivable broadcast station (channel) is found in step S108, the receiver 1 receives broadcast radio waves on that channel in the next step S110. In step S112, the data acquisition means 20 acquires data broadcast content from the received digital broadcast radio wave. Details of the acquisition of the data broadcast content are as already described in the description of FIG. In step S114, the acquired data broadcast content is stored in the memory 30. In step S116, the tuner moves (scans) to the next channel frequency band, and then returns to the determination in step S104 to sequentially repeat each step up to step S116. Even if a receivable broadcasting station is not found in step S108, the tuner moves to the next channel frequency band in step S116 (111), and then repeats each step in the same manner.

  The acquisition and storage of the data broadcast content from step S104 to step S116 is automatically executed at predetermined time intervals while the vehicle is moving under the control of the control means 40. Thereby, the user can browse the latest information that is necessary in a timely manner as the vehicle moves without requiring any special operation.

  When all the channel scans in the frequency range set in step S102 are completed and it is determined in step S104 that the current frequency of the tuner 110 is not within the set data broadcast frequency range, the memory 30 is stored in step S118. It is determined whether there is already stored data broadcast content. If there is a stored data broadcast content, the stored data broadcast content is displayed on the display means 50 in step S120. If there is no data broadcast content already stored in the memory 30 due to extremely poor reception of radio waves, no display is performed.

  In the flow of FIG. 6, in principle, all data broadcast contents from broadcast stations that can be received in the set frequency range are stored in the memory 30. Therefore, the amount of content may be enormous, and content can be selected and displayed with priority by reflecting the user's wishes and the like by the method described below.

  FIG. 7 is a flowchart for preferential display of the data broadcast content desired by the user. The flow of FIG. 7 is executed after a plurality of data broadcast contents are stored in the memory 30 as a result of executing the flow of FIG.

  In step S202, the display condition information input from the input unit 70 by the user is referred to. When the input means 70 is a touch panel type input screen, the user uses information on the screen such as “keyword input” or “favorite genre setting” to select content to be displayed with priority. Can be entered. Information used in the navigation device, for example, information such as a destination and a facility genre to be searched may be input as a display condition. Alternatively, it may be set in advance to exclude the corresponding channel (broadcast station) so as not to display the content from the broadcast station that is not used. The input display conditions may be stored in the memory 30 and read from the memory automatically or by selection from the next time. However, it is desirable that important information such as emergency disaster bulletins should not be set not to be displayed or set to lower the priority.

  In step S204, it is determined whether or not all display candidates, that is, all data broadcast contents stored in the memory 30 have been checked. If all checks have not been completed, the Nth display candidate is read from the memory in step S206. N is an integer of 1 or more, and the upper limit value is the number of display candidates stored in the memory.

  In step S208, it is determined whether the read Nth display candidate corresponds to the display condition. The presence or absence of correspondence is determined, for example, based on whether the display conditions match or are similar. For example, in the case of a facility of a genre with a display condition, it is determined whether the content relates to a facility that matches or is similar to the facility. If the display candidate corresponds to the display condition, the priority order of the display candidate is corrected in step S2108. In the previous example, if the display candidate matches the display condition, for example, the priority is raised by 2 points, and if they are similar, the priority is raised by 1 point. At that time, the higher the degree of coincidence with the display condition, the higher the point, and the higher the priority order. After the correction, the next (N + 1) th display candidate is set (step S212), the process returns to step S204 (213), and the same processing is performed for the (N + 1) th display candidate. Similarly, when the display candidate does not correspond to the display condition, the next (N + 1) th display candidate is set (S212), and the process returns to step S204.

  If all the display candidates have been checked, the data broadcast content stored in the memory 30 is displayed on the display means 50 in step S214. At the time of the display, a predetermined number of contents are displayed from the top of the display screen in descending order of priority (points) corrected in step S2108. The font and display color of the content to be displayed may be changed so as to attract the user's attention. According to the series of flows in FIG. 7, content that matches the user's wishes can be selected and displayed with priority. Thereby, even if a user is a narrow display screen, a user can browse desired information quickly.

  FIG. 8 is a flowchart for preferential display of data broadcast contents according to the distance to the broadcast station. The flow of FIG. 8 is executed after a plurality of data broadcast contents are stored in the memory 30 as a result of executing the flow of FIG. In step S300 of priority display by distance, a plurality of distance estimation methods by the distance estimation unit 420 are conceivable. In FIG. 8, three processes A, B, and C are illustrated. Processes A, B, and C are executed individually or in combination.

  In step S302 of process A, the priority point of a broadcasting station (channel) in a relatively close distance such as a one-segment local service using weak radio waves set in advance is raised. More specifically, the points are changed according to the magnitude (weakness level) of radio waves (+1, +3, etc.) to raise or lower the priority of each broadcasting station. In step S304, the data broadcasting content of the broadcasting station having a high priority point is preferentially displayed on the display means 50. As in the case of step S214 in FIG. 7, the display method is to display a predetermined number of contents from the top of the display screen in descending order of priority, or to display the font or the like about the contents to be displayed so as to attract the user's attention. The display color may be changed. As a result of the processing A, the user can preferentially browse the area information transmitted by the area broadcasting station that uses weak radio waves.

  In step S312 of process B, when address information is included as position information in the received data broadcast content, the priority of the data broadcast content is increased in ascending order of the distance between the address (position) and the current position of the vehicle. More specifically, the priority is changed up and down by changing the points according to the distance (closeness) (+1, +3, etc.). The current position of the vehicle is grasped through a navigation device or directly by receiving a GPS signal. In step S314, the data broadcasting content of the broadcasting station having a high priority point is preferentially displayed on the display means 50. The display method is the same as in step S304.

  In step S322 of process C, the priority of the data broadcast content is increased according to the received signal level (electric field strength) in each channel acquired from the receiving means 10. More specifically, the higher the signal level (electric field strength), the higher the priority point (+1, +3, etc.), and the priority of each content is raised or lowered. In step S324, the data broadcasting content of the broadcasting station having a high priority point is preferentially displayed on the display means 50. Note that in order to prioritize the display of content from broadcast stations in areas that use weak radio waves, the points of broadcast stations such as TV stations with high radio wave output are lowered in advance so that the content is not preferentially displayed. May be.

  The display method is the same as in step S304. As a result, when there is a correlation between the distance between the broadcast station and the current position of the vehicle and the received signal level (electric field strength), data broadcast content of a nearby broadcast station (high signal level) can be preferentially displayed. This process C is expected to be particularly effective when the number of familiar broadcasting stations increases due to the acquisition of broadcasting licenses by local governments and the spread of one-segment local services.

  FIG. 9 is a flowchart for preferential display of similar data broadcast contents. The flow of FIG. 9 is executed by the similarity determination unit 440 after a plurality of data broadcast contents are stored in the memory 30 as a result of executing the flow of FIG. In step S402, the similarity of a plurality of data broadcast contents (display candidates) stored in the memory 30 is determined. The similarity is determined based on the similarity between the contents (documents) at the word level, the similarity between the document vectors, and the like using a conventional morphological analysis method and vector space method. Determine. Similar contents are clustered, and each cluster is numbered according to the degree of similarity (similarity “high” → number “large”).

  In step S404, it is determined whether there is a cluster having a high similarity (large number). If there is a cluster with a high degree of similarity (large number), in step S406, one or more predetermined numbers of the latest updated date and time are selected from the contents (display candidates) in the cluster, and the other contents are deleted. The selected content (display candidate) is stored in the memory 30. It should be noted that the priority may be lowered so that other contents that are not selected can be viewed later without being deleted. In step S408, the selected data broadcast content with the latest update date and time is preferentially displayed on the display means 50. The display method is the same as in step S304 of FIG.

  In this way, data broadcast contents having a high degree of similarity are clustered, and the latest contents with the latest update date are selected and preferentially displayed in each cluster, so that similar information is displayed side by side (overlapping). It is possible to prevent the display of other information useful for the user. Accordingly, there is an advantage that the user can quickly browse various kinds of information while effectively utilizing the narrow display screen.

  The above-described embodiment is an example, and the present invention is not limited to this. Various modifications are possible without departing from the spirit of the present invention. The present invention is basically applicable to any vehicle that can communicate with a digital broadcasting station.

Claims (5)

A digital broadcast receiver mounted on a vehicle,
Receiving means for selecting a receivable digital broadcast station while performing channel scanning, and receiving digital broadcast radio waves from the selected digital broadcast station;
Data acquisition means for acquiring data broadcast content from received digital broadcast radio waves;
A memory for storing the acquired data broadcast content;
Display control means for editing and displaying the data broadcast content stored in the memory,
The receiving unit performs the channel scan while changing the frequency between predetermined frequencies every predetermined time, and the data acquisition unit acquires data broadcast content from at least one digital broadcasting station selected by the channel scan. A digital broadcast receiver.   2. The apparatus according to claim 1, further comprising an input unit that allows a user to input a display condition of the data broadcast content, wherein the display control unit preferentially displays the data broadcast content corresponding to the input display condition. Digital broadcast receiver.   It further comprises distance estimation means for estimating the distance between the current position of the vehicle and a receivable digital broadcast station, and the display control means prioritizes data broadcast content from a digital broadcast station with the estimated short distance. The digital broadcast receiver according to claim 1, wherein the digital broadcast receiver is displayed.   Position information extraction means for extracting position information from the data broadcast content is further provided, and the display control means obtains map information including the extracted position information and uses the map information together with the data broadcast content from which the position information is extracted. The digital broadcast receiver according to claim 1, wherein the digital broadcast receiver is displayed.   Similarity determination means for determining similarity between the plurality of data broadcast contents stored in the memory is further provided, and the display control means includes a plurality of data broadcast contents having a similarity equal to or higher than a predetermined similarity. The digital broadcast receiving apparatus according to claim 1, wherein a predetermined number of data broadcast contents are displayed in the order of update date and time.

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