JP4952532B2 - Television display control device and program for television display control device - Google Patents

Description

  The present invention relates to a television display control device and a program for the television display control device.

2. Description of the Related Art Conventionally, television broadcast receivers that make it impossible to receive broadcasts from a specific broadcast station are known (see, for example, Patent Documents 1 and 2).
JP 2007-174694 A Japanese Patent Laid-Open No. 5-37868 Japanese Patent Laid-Open No. 10-112633

  The present inventor has studied to apply such a technology for restricting viewing for each broadcasting station to an in-vehicle television display control apparatus. As a result, the following problems were discovered.

  Since the vehicle moves, the receivable broadcasting station changes as the vehicle moves. Broadcasting that can be viewed at the current location of the vehicle using a list of broadcast stations that identify the location of the vehicle and summarizes the stations that can be received in each region, as a technique for tracking changes in the broadcast stations that can be received. A technique for identifying a station is known (for example, Patent Document 3).

  Even if the above-mentioned viewing restriction technique is applied to such a technique, if the broadcast station of the broadcasting station that was initially subject to the viewing restriction is moved out of the broadcasting area of another broadcasting station, the new broadcasting Within the area, broadcast stations in the same series as the broadcast stations that were initially subject to viewing restrictions can be viewed. As a result, when the broadcast area is changed, a program whose viewing is restricted is displayed.

  In view of the above problems, the present invention can continue appropriate viewing restrictions even if the broadcasting area changes when the viewing restriction technique for each television broadcast station is applied to a vehicle television display control device. The purpose is to.

  In order to achieve the above object, the present invention identifies a television broadcast station mounted on a vehicle and having a broadcast area as an area to which the current position of the vehicle belongs, and one of the identified television broadcast stations (hereinafter referred to as a display target). The present invention relates to a television display control device that displays an image based on a broadcast signal from a broadcast station on an image display device.

  A feature of the present invention is that the television display control apparatus accepts and records a setting for performing viewing restriction for a television broadcasting station targeted for a broadcasting area different from the broadcasting area, and the recorded viewing restriction setting is recorded. The broadcast-prohibited broadcast station that is to be restricted in view and the display-target broadcast station belong to the same broadcast station series, and the broadcast video from the display-target broadcast station is displayed on the image display device. Is to ban.

  Because of this, even if the vehicle moves from one broadcast area to another broadcast area, the same series of TV broadcasts as the viewing-prohibited broadcast stations that the user has set to restrict viewing in the original area The station video is not displayed on the image display device. Therefore, appropriate viewing restrictions can be continued even if the broadcast area changes.

  The operation of “prohibiting display of broadcast video from the display target broadcast station on the image display device” here may be realized by prohibiting reception of a signal from the broadcast station. However, it may be realized by prohibiting the display of the video based on the received signal on the image display device while receiving the signal from the broadcast station. That is, any method may be used as long as the video is not displayed on the image display device as a result. The present invention can also be understood as a program used in the television display control apparatus according to the present invention.

  Hereinafter, an embodiment of the present invention will be described. FIG. 1 shows a hardware configuration of a vehicle navigation apparatus 1 according to this embodiment. The vehicle navigation device 1 includes a position detector 11, an image display device 12, an operation unit 13, a speaker 14, a TV tuner 15, a map data acquisition unit 16, and a control circuit 17.

  The position detector 11 includes a well-known sensor (not shown) such as a geomagnetic sensor, a gyroscope, a vehicle speed sensor, and a GPS receiver. The current position and direction of the vehicle based on the characteristics of each of these sensors. , And information for specifying the speed is output to the control circuit 17.

  The image display device 12 displays a video to the user based on the control of the control circuit 17. As a video to be displayed, there are a map image, a television video and the like.

  The operation unit 13 includes a plurality of mechanical switches provided in the vehicle navigation device 1 and an input device such as a touch panel provided on the display surface of the image display device 12. The user presses the mechanical switch and touches the touch panel. A signal based on the above is output to the control circuit 17.

  The TV tuner 15 receives a television broadcast signal from a television broadcast station on a channel (specifically, frequency) designated by the control circuit 17 and outputs the received broadcast signal to the control circuit 17. In the present embodiment, it is assumed that the type of television broadcast received by the TV tuner 15 is terrestrial analog television broadcast. However, the type of television broadcast received by the TV tuner 15 is terrestrial digital television broadcast HDTV (high definition television broadcast) or SDTV (standard definition television broadcast) (hereinafter, HDTV and SDTV are simply referred to as terrestrial digital broadcast). Or a broadcast for a one-segment partial reception service for mobile phones and mobile terminals in terrestrial digital television broadcasting (hereinafter simply referred to as one-segment broadcasting).

  The map data acquisition unit 16 includes a nonvolatile storage medium such as an HDD and a device that reads and writes data from and to the storage medium. The storage medium stores a program executed by the control circuit 17, map data for route guidance, regional broadcasting station data for TV viewing, broadcasting station series data, and the like. In addition, a viewing-prohibited broadcast station list described later can be stored.

  The map data has road data and facility data. The road data includes link position information, type information, node position information, type information, information on connection relations between nodes and links, and the like. The facility data has a plurality of records for each facility, and each record has data indicating name information, location information, facility type information, and the like of the target facility.

  The regional broadcast station data is data that lists, for each region, names of television broadcast stations that can be received in the region and channels of the television broadcast station. The broadcast station series data is data in which the names of television broadcast stations belonging to the broadcast station series (for example, Fuji TV (registered trademark) series, Nippon Television (registered trademark) series) are listed for each broadcast station series.

  A control circuit (corresponding to a computer) 17 is a microcomputer having a CPU, RAM, ROM, I / O and the like. The CPU executes a program for the operation of the vehicle navigation device 1 read from the ROM or the map data acquisition unit 16, reads information from the RAM, the ROM, and the map data acquisition unit 16 when executing the program. Information is written to the storage medium of the map data acquisition unit 16, and signals are exchanged with the position detector 11, the image display device 12, the operation unit 13, and the speaker 14.

  Specific processing performed by the control circuit 17 executing the program includes current position specifying processing, guidance route calculation processing, route guidance processing, viewing availability setting processing, television display processing, and the like.

  The current position specifying process is a process for specifying the current position and direction of the vehicle based on a signal from the position detector 11 using a known technique such as map matching. The guidance route calculation process is a process of receiving an input of a destination by the user from the operation unit 13 and calculating an optimum guidance route from the current position to the destination. In the route guidance process, map data is read from the map data acquisition unit 16, and an image in which the calculated guide route, destination, waypoint, current position, etc. are overlaid on the map indicated by the map data is displayed on the image display device 12. This is a process of outputting a guidance voice signal for instructing a right turn, a left turn or the like to the speaker 14 when necessary, such as when the host vehicle arrives before the guidance intersection.

  The viewing permission / inhibition setting process is a process for accepting and recording, via the operation unit 13, user settings for performing viewing restriction on a part or all of a plurality of television broadcasting stations that can be currently received by the TV tuner 15. It is.

  The television display process is a process for selecting one of a plurality of currently available television broadcast stations and displaying video and audio based on a broadcast signal from the selected television broadcast station to the user. However, in the television display process, the control circuit 17 prohibits the display of the television broadcast station and the television broadcast station of the same series as the television broadcast station in which the view restriction is performed in the view availability setting process. .

  Hereinafter, the viewing permission / inhibition setting process and the television display process will be described in detail. First, FIG. 2 is a flowchart showing the program 100 executed by the control circuit 17 for the viewing permission / inhibition setting process.

  The control circuit 17 starts executing the program 100 when a predetermined setting start operation is performed on the operation unit 13 by the user. First, in step 110, the display target of the image display device 12 is switched to the viewing permission / inhibition setting screen.

  Subsequently, in step 120, a list of broadcast stations that can be viewed at present (that is, broadcast stations that the current TV tuner 15 can receive broadcast signals) is created. Specifically, the current position specifying process is executed to specify the current position of the host vehicle, and subsequently, reception is possible in the area to which the current position belongs based on the regional broadcast station data in the map data acquisition unit 16. All TV broadcast stations (that is, the area is the broadcast area) are extracted.

  Subsequently, in step 130, the image display device 12 is controlled to superimpose and display the list created in step 120 on the viewability setting screen. Each television broadcasting station in the displayed list can be individually selected by the user using the operation unit 13.

  Subsequently, in step 140, the process waits for a user's selection operation for one or more television broadcast stations in the list displayed in step 130. If there is a selection operation, then step 150 is executed.

  In step 150, the television broadcast station that has been selected in step 140 is identified as a viewing-prohibited broadcast station, and the identified television broadcast station is additionally recorded in the viewing-prohibited broadcast station list of the map data acquisition unit 16.

  When the above-described user selection operation is performed on a television broadcast station that is already a viewing-prohibited broadcast station, the control circuit 17 performs the operation so that the television broadcast station is not a viewing-prohibited broadcast station. It may be determined that the operation is to be performed, and the record of the television broadcast station may be deleted from the viewing-prohibited broadcast station list. After step 150, execution of program 100 is terminated.

  By executing such a program 100 each time a user requests, a television broadcast station that the user wants to restrict viewing can be recorded as a viewing-prohibited broadcast station in the viewing permission / inhibition setting process.

  Next, the television display process will be described. The control circuit 17 starts executing the program 100 when a predetermined television viewing start operation is performed on the operation unit 13 by the user.

  In step 210, the current position of the host vehicle is specified by executing the current position specifying process. Subsequently, in step 220, a list of broadcast stations that can be received at the current position is specified based on the regional broadcast station data in the map data acquisition unit 16.

  Subsequently, in step 230, one of the plurality of television broadcast stations in the broadcast station list is selected as a target television broadcast station (hereinafter referred to as a display target broadcast station) to be displayed on the image display device 12. As a specific selection method, for example, the selection may be made based on a user's operation for designating a specific television broadcast station using the operation unit 13, or the television broadcast station that was broadcast when the previous television broadcast was displayed. You may select the same TV broadcast station, or, immediately after crossing the boundary of the broadcast area, among the TV broadcast stations in the newly entered broadcast area, the same TV broadcast station that has been received and displayed so far TV broadcast stations may be selected. Whether or not two television broadcast stations are in the same series is determined based on the broadcast station series data in the map data acquisition unit 16.

  Subsequently, in step 240, it is determined whether or not one or more viewing-prohibited broadcast stations are recorded in the viewing-prohibited broadcast station list of the map data acquisition unit 16. If it is recorded, then step 250 is executed. If it is not recorded, then in step 290, the video from the display target broadcast station is displayed on the image display device 12, and the audio from the display target broadcast station is displayed. Is output to the speaker 14.

  In step 250, the broadcast station series to which the display target broadcast station belongs is determined based on the broadcast station series data. Further, in step 260, all broadcast station series to which the viewing-prohibited broadcast stations belong are determined based on the broadcast station series data.

  Subsequently, in Step 270, it is determined whether or not the broadcast station series of the display target broadcast station specified in Step 250 matches any of the broadcast station series of the viewing-prohibited broadcast stations specified in Step 260. If it matches any of the following, step 280 is executed, and if it does not match any of them, then in step 290, the video from the display target broadcast station is displayed on the image display device 12, and The sound is output to the speaker 14.

  In step 280, it is prohibited to display the video from the display target broadcast station on the image display device 12, and to display the sound from the display target broadcast station on the image display device 12. At this time, the control circuit 17 uses the image display device 12 or the speaker 14 to notify the user that the display target broadcast station is a viewing-prohibited broadcast station and cannot be displayed. Good.

  A typical application example of the viewing permission / inhibition setting process and the television display process will be described. In a certain broadcast area X (for example, the broadcast area in the Keihanshin area), the user activates the viewing permission / inhibition setting process using the operation unit 13, and a specific broadcasting station A (for example, NHK Osaka (registered trademark) in the broadcast area is activated. ), Kansai TV (registered trademark), etc.). In this case, the control circuit 17 accepts this operation in step 140 of the program 100, and in step 150, records the specific television broadcast station A as a viewing-prohibited broadcast station in the viewing-prohibited broadcast station list.

  Subsequently, it is assumed that the host vehicle moves and enters a broadcast area Y (for example, a broadcast area in the Tokai area) different from the broadcast area X, and performs an operation for viewing the television on the operation unit 13 there. In that case, in the execution of the program 200, the control circuit 17 acquires a television broadcast station list having the area to which the current position belongs as a broadcast area (steps 210 and 220), and one of the specified television broadcast station lists (NHK) Nagoya (registered trademark), Tokai TV (registered trademark), CBC TV (registered trademark), etc.) are specified as the television broadcast station B to be displayed (step 230).

  Then, the recorded broadcast station series of the viewing-prohibited broadcast station A (for example, NHK (registered trademark) series, Fuji Television (registered trademark) series) and the broadcast station series of the display target broadcast station B (for example, NHK (registered trademark)) ) Series, Fuji TV (registered trademark) series, TBS (registered trademark) series) (step 270), if not the same, broadcast image from the display target broadcast station B is displayed on the image display device 12. If the same, the broadcast video from the display target broadcast station B is not displayed on the image display device 12 and the broadcast sound is not output to the speaker 14 (step 280). ).

  As described above, the vehicular navigation device 1 receives and records a setting for restricting viewing with respect to a specific television broadcasting station A targeted for the broadcast area X, and is separated from the recorded viewing-prohibited broadcasting station A. The display target broadcast station B in the broadcast area Y is prohibited from displaying the broadcast video from the display target broadcast station on the image display device based on belonging to the same broadcast station series.

  Because of this, even if the vehicle moves from one broadcast area to another broadcast area, the same series of TV broadcasts as the viewing-prohibited broadcast stations that the user has set to restrict viewing in the original area The station video is not displayed on the image display device 12. Therefore, appropriate viewing restrictions can be continued even if the broadcast area changes.

  In the present embodiment, the vehicle navigation device 1 corresponds to an example of a television display control device. However, the control circuit 17 can also be regarded as an example of a television display control device. In addition, the control circuit 17 functions as an example of a setting recording unit by executing the program 100, and functions as an example of a display control unit by executing Step 290 of the program 200. Steps 240 to 280 of the program 200 are performed. When executed, it functions as an example of a prohibition unit.

(Other embodiments)
As mentioned above, although embodiment of this invention was described, the scope of the present invention is not limited only to the said embodiment, The various form which can implement | achieve the function of each invention specific matter of this invention is included. It is.

  For example, the TV tuner 15 may be able to receive any of three types of television broadcasts with different broadcasting methods, such as terrestrial analog television broadcast, terrestrial digital broadcast, and one-segment broadcast. In this case, in addition to the operation of the above-described embodiment, the control circuit 17 may be configured to enable / disable viewing for each broadcast type based on a user setting operation using the operation unit 13. For example, when the user performs an operation to restrict viewing of a certain type of television broadcast (for example, terrestrial analog) using the operation unit 13, the control circuit 17 broadcasts the channel of all the types of channels. Prohibits video display.

  By doing so, even if the broadcasting system changes even in the same broadcasting station, the availability of viewing also changes. In this way, for example, reception and display of broadcasts from a certain broadcasting station is charged for a certain method (for example, terrestrial digital broadcasting) and free for another method (for example, one-segment broadcasting). In addition, when the cost for the user varies depending on the broadcasting system, it becomes possible to restrict the use of the expensive system.

  Alternatively, when the TV tuner 15 can receive any of the above three types of television broadcasts, the control circuit 17 can view and listen for each set of broadcast station series and broadcast type based on the user's setting operation. It may be configured to switch between yes / no.

  In this case, the control circuit 17 displays all broadcast stations that are currently viewable for all three types of television broadcasts in step 130 of the program 100 shown in FIG. The designation of the type of broadcast and the set of broadcast stations and the designation of the restriction on viewing of TV for the set may be accepted, and the designated set may be recorded in the viewing-prohibited broadcast station list in step 150. .

  Further, in this case, in the execution of the program 200, the control circuit 17 specifies the broadcast station to be displayed and the broadcast system (for example, according to the user's broadcast station and system designation using the operation unit 13) in Step 230, and Step 270. Then, it is determined whether or not the set of the broadcast station series to which the display target broadcast station belongs and the set of the broadcast system to be used match any of the sets recorded in the viewing-prohibited broadcast station list. Step 290 may be executed subsequently if they do not match.

  With such processing, it is possible to make fine settings for whether or not to view television, as shown in a table form in FIGS. The example in FIG. 4 shows a case where viewing is prohibited only for the analog television broadcast of the A broadcast station series, and the example of FIG. 5 is viewed by all except the terrestrial digital broadcast and the one-segment broadcasting of the B and D broadcast stations. Indicates the case where the ban is prohibited.

  Also, the specification of the broadcast system in step 230 may be determined based on the reception sensitivity of the broadcast signal by each broadcast system. For example, when the reception sensitivity of the TV tuner 15 is higher than a reference value (for example, the minimum value at which terrestrial digital broadcasting can be normally displayed), the broadcast is received by the terrestrial digital broadcasting method, and when the reception sensitivity is lower than the reference location. The broadcast may be received by the one-segment broadcasting method.

  Alternatively, when the TV tuner 15 can receive any of the above three types of television broadcasts, the control circuit 17 covers the three broadcast types for each broadcast station series based on the user's setting operation. In conjunction with this, viewing may or may not be switched.

  In addition, data that needs to be updated, such as a viewing-prohibited broadcast station list, is not limited to the map data acquisition unit 16, and can continue to hold data even when the main power supply of the vehicle navigation device 1 is stopped. It may be stored in a storage medium that can be stored (for example, flash memory, EEPROM, backup RAM). In that case, the storage medium of the map data acquisition unit 16 does not have to be a writable storage medium such as an HDD, and may be a non-writable storage medium such as a DVD or a CD-ROM.

  In the above embodiment, each function realized by the control circuit 17 executing the program is realized by using hardware having those functions (for example, an FPGA capable of programming the circuit configuration). You may come to do.

  Moreover, in the said embodiment, although a navigation apparatus is a vehicle-mounted type, a navigation apparatus may be mounted in a ship and an airplane, and may be a thing of the type which a person can carry. . For example, a mobile phone having a navigation device function also corresponds to the navigation device of the present invention.

1 is a block diagram illustrating a configuration of a vehicle navigation device 1 according to an embodiment of the present invention. 3 is a flowchart of a program 100 executed by a control circuit 17. It is a flowchart of the program 200 which the control circuit 17 performs. It is a table | surface which shows the state of the availability of viewing set for every kind of broadcast and the group of a broadcast station in other embodiment. It is a table | surface which shows the state of the availability of viewing set for every kind of broadcast and the group of a broadcast station in other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Vehicle navigation apparatus, 11 ... Position detector, 12 ... Image display apparatus,
13 ... Operation unit, 14 ... Speaker, 15 ... TV tuner, 16 ... Map data acquisition unit,
17 ... Control circuit, 100, 200 ... Program.

Claims (2)

A television display control device mounted on a vehicle,
A television broadcast station whose broadcast area is the area to which the current position of the vehicle belongs is identified, and an image based on a broadcast signal from one of the identified television broadcast stations (hereinafter referred to as a display target broadcast station) is displayed as an image. Display control means for displaying on the apparatus;
A setting recording means for accepting and recording a viewing restriction setting for performing a viewing restriction on a television broadcasting station targeted for a broadcasting area different from the broadcasting area;
Broadcast from the display target broadcast station based on the fact that the viewing-prohibited broadcast station and the display target broadcast station that are to be restricted in the recorded view restriction setting belong to the same broadcast station series. A television display control device comprising: prohibiting means for prohibiting display of video on the image display device. A program used for a television display control device mounted on a vehicle,
Setting recording means for accepting and recording a viewing restriction setting for performing a viewing restriction on a part of a plurality of television broadcasting stations;
Display control means for displaying on the image display device a video based on a broadcast signal from one of the television broadcast stations (hereinafter referred to as a display target broadcast station) whose broadcast area is the area to which the current position of the vehicle belongs; and Broadcast video from the display target broadcast station based on the fact that the viewing-prohibited broadcast station that is to be subject to view restriction in the recorded view restriction setting and the display target broadcast station belong to the same broadcast station series A program that causes a computer to function as prohibition means for prohibiting display of the image on the image display device.

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