JP2008182604A - Receiver with viewing restriction function - Google Patents

Abstract

[PROBLEMS] To specify a viewing target area.
Received position related information such as latitude / longitude information X of a place (for example, overseas) where a receiving device is placed is acquired. When the viewing target area of the contract content is in Japan, the latitude / longitude information Y in Japan is read and collated based on the identification flag. As a result of the collation, the received latitude / longitude information X does not match the read latitude / longitude information Y in Japan, and in this case, it is determined that it is outside the viewing target area. Therefore, in this case, the contract content cannot be viewed. When the receiving device is installed in Japan, the two match so that the contract content can be viewed without problems. By specifying the viewing target area, it is possible to determine whether or not the contract content can be viewed.
[Selection] Figure 6

Description

  The present invention relates to a receiving device with a viewing restriction function. Specifically, it is a receiving device that can view video information from video equipment using a television receiver installed in a place other than where the video equipment is installed, or on the go. The present invention relates to a receiving apparatus having a function capable of specifying an area.

  Satellite broadcasting is one of the most effective means of eliminating difficult viewing areas. Recently, the number of broadcast channels by satellite broadcasting has increased, and accordingly, the content (genre) of broadcast programs has been wide-ranging, and a satellite broadcast service that provides a number of channels specialized for genres and content has been provided.

  This service is generally charged, and the contracted contents can be viewed within the service area of the platform operator operating the portal site. For example, the service area of SkyPerfecTV, a pay broadcasting entity, is regulated to be in Japan.

  On the other hand, recently, viewing systems have been developed that can acquire video information without restricting areas such as regions and countries. This viewing system is a system that allows users to view video information from video equipment using a television receiver installed at a location other than where the video equipment is installed, or on the go. is there.

  This viewing system includes a transmission device and its reception device, and the transmission device is installed on the video equipment side serving as the content source source, and the reception device is installed on the television receiver side. The receiving device is generally installed in a different place from the transmitting device. In addition to the case where the room is different in the same main building, the receiving device is far away so that the transmitting device can be accessed via a communication network such as the Internet. It can also be installed in places. Since the receiving device is small and light, it is suitable for portability. Therefore, the receiving device can be installed in a place different from the place where the transmitting device is installed.

  Therefore, in this viewing system, the viewing location is not particularly limited. The viewing area is not limited as long as the condition that the transmission device can be accessed via the Internet is met, and video information sent from the transmission device can be viewed regardless of the country or region.

  Therefore, when this viewing system is used, the contract content can be viewed even outside the paid service area as described above, and therefore, this paid service can be enjoyed even overseas, for example.

  In order to be able to enjoy a specific paid service by limiting only to the intended paid service area, it is necessary to provide the receiving device with a function that can specify a receiving area that is a viewing area.

  The reception area is a geographical area, and it is conceivable to use a GPS (Global Positioning System) as means for specifying the reception area (for example, Patent Document 1).

  In this case, as can be inferred from Patent Document 1, the longitude and latitude information of the area where the paid service can be received is prepared in advance in the receiving apparatus. With reference to the current longitude and latitude information received by the receiving device, it is determined whether or not the area where the receiving device is installed is within a geographical area (viewing target area) where the paid service can be enjoyed. If the reception area is the viewing target area, a paid service is provided, and if not, a lock may be applied so that the paid service cannot be received.

Japanese Patent Laying-Open No. 2005-210197

  By the way, Patent Document 1 uses a GPS function in order to limit a viewing target area for an on-air broadcast wave (terrestrial wave). That is, in order to determine the spillover area as a means for limiting only the original service area among the areas where terrestrial waves can be received, the geographical information of the area currently being received is used.

  Therefore, this Patent Document 1 only discloses means for specifying a spillover area, and not only a technique for determining a viewing target area for satellite broadcasting but also a determination of a viewing target area on a global scale. The technology is not disclosed.

  Therefore, the present invention solves such a conventional problem, particularly when viewing within a service area contracted with this platform operator, etc., for a platform operator, etc. existing on a global scale. In this case, a receiving apparatus that can only view contract contents and the like is proposed.

In order to solve the above-described problem, a receiving device with limited viewing according to the present invention described in claim 1 includes a receiving device body that receives video information,
The related information acquisition means for acquiring the reception position related information of the video information,
The receiver main body is
Area information storage means for storing the viewing area information of the video information;
Viewing determination means for determining whether the reception position related information is within the viewing target area when receiving the video information;
Only when the receiving position of the receiving apparatus main body is determined to be within the viewing target area by the viewing determining means, the received video information is shifted to a state where it can be viewed.

  In the present invention, the receiving apparatus main body has a function of converting input or received video information into a television signal and sending the converted television signal to the outside. A video monitor such as a television receiver is connected to the receiving apparatus, and video information is viewed through this video monitor.

  Viewing area information is stored in the area information storage means. The viewing target area is a geographical area determined by a contract with a provider (such as a platform provider) that provides specific content. For example, content contracted with a Japanese platform provider such as SKY PerfecTV is a contract that can be viewed only in Japan, so the viewing area information is information that can identify a geographical area in Japan. If another platform operator exists in another country (the United States and other countries) and the platform operator in the other country has also set the viewing area, the viewing target set by that platform operator Area information is also stored.

  The viewing area information may be any information (reception position related information) that can identify the receiving area (area), and the most important information is latitude and longitude information (latitude / longitude information). In addition to information, such as the transmission / reception frequency of mobile phone base stations, transmission frequencies of broadcasting stations (domestic and foreign television stations, radio stations, FM stations, etc.), domestic and foreign radio clock base station frequencies (timekeeping frequencies), etc. Information can be considered.

  Example of acquiring the above-mentioned contract content restricted in Japan by accessing the video information source installed in Japan via the Internet using a receiving device installed outside Japan Will be explained.

  In this case, first, reception position related information of the place (area) where the receiving device is placed, for example, latitude / longitude information is acquired. Then, the latitude / longitude information in Japan that is the viewing target area of the contract content is read out, and the two are collated. As a result of the collation, the received latitude / longitude information does not match the read latitude / longitude information in Japan, and in this case, it is determined that it is outside the viewing target area. Therefore, in this case, the contract content cannot be viewed. When the receiving device is installed in Japan, the two match so that the contract content can be viewed without problems.

  In the present invention, it is determined whether or not it is within the viewing target area based on the reception position related information, and the received specific video information can be viewed only when it is determined that it is within the viewing target area. .

  According to this, viewing can be restricted only within a geographical area determined by a contract with a provider providing specific content. Since the geographical area contracted with the provider is not specified, a viewing restriction function can be provided on a global scale.

  Next, a preferred embodiment of a receiving apparatus with a viewing restriction function according to the present invention will be described in detail with reference to the drawings.

  First, a video viewing system to which a receiving apparatus according to the present invention can be applied will be described with reference to FIG.

  The video viewing system 10 shown in FIG. 1 shows a case where the video information source 20 and the receiving system 40 are connected via a communication line network such as the Internet 24. Video information is stored in the video information source 20, and a receiving device 50 according to the present invention is provided in the receiving system 40.

  The video information source 20 will be described. The video information source 20 is provided on the provider side that provides pay content, and includes a content storage unit 22 and a contractor base station 30. This content storage unit 22 stores paid content for satellite broadcasting (a large number of contracted content). For example, in Japan, content provided on the SkyPerfect TV side, which is one of the platform operators, is broadcast. Accumulated for each channel. Actually, the platform provider can provide content that is actually on air in addition to content that is already on air. The content storage unit 22 is a large-scale capacity storage unit using a hard disk or the like.

  The contractor base station 30 connected to the content storage unit 22 is installed for each contractor and includes a satellite tuner unit 32 and a transmission unit (base station) 34, respectively. The broadcast channel provided from the content storage unit 22 by the unit 32 is selected based on an instruction from the contractor.

  The transmitter 34 is connected to a communication line network (hereinafter referred to as the Internet) 24 such as the Internet, and the transmitter 34 receives various control information via the Internet 24.

  The control information is identification information (authentication information or the like) contracted with a business operator, channel selection information, content selection information, or the like. When the contractor can be identified based on the identification information, the desired contract content is selected by controlling the satellite tuner unit 32 based on the control information, and the selected contract content is transmitted.

  The receiving system 40 is connected to the Internet 24. The receiving system 40 is provided for each contractor, and the receiving system 40 is provided with a receiving device 50 according to the present invention having an Internet interface.

  The receiving device 50 has a function of converting received video information into a television signal and sending the converted television signal to the outside. For this reason, this receiving apparatus uses a television receiver 48 installed at a place different from the place where the video equipment or the like is installed, or on the go, so that the video information from the video equipment can be viewed. A receiving device used in the system is suitable. Since the receiving device itself does not have a video display function, the receiving device is connected to a video monitor such as the television receiver 48, and the video information is viewed through the video monitor.

  FIG. 2 shows an example of the transmitter 34 in particular among the contractor base stations 30. The transmission unit 34 can use the transmission device used in the above-described video viewing system, but the following embodiment has a dedicated configuration.

  In FIG. 2, the transmission unit 34 includes an encoder unit 36A that functions as a signal processing unit to which video information (contract content) of a broadcast channel selected by the satellite tuner unit 32 is supplied, an interface unit 36B, and a control unit 36C. It consists of.

  The encoder section 36A is for converting the selected contract content into a data format suitable for transmission. In this example, the contract content is compressed into the MPEG format.

  The contract content is subjected to a digital conversion process and a compression / encoding process in the compression / encoding unit 70 to be a video and audio elementary stream according to the MPEG system. The video elementary stream and the audio elementary stream are encrypted in the next encryption unit 72.

  The encrypted video elementary stream and audio elementary stream are supplied to the packet generation unit 74 and subjected to packet processing according to a predetermined protocol.

  A transport stream TS (MPEG-TS) generated using a plurality of packetized elementary streams is defined in, for example, the RTP / IP (Real-Time Transport Protocol / Internet Protocol) protocol of the OSI reference model. It is generated as a packet that has a format. By performing such format conversion, a transmission form that is resistant to errors is obtained.

  The control unit 36C has control means 62 using a CPU for controlling the entire apparatus, and the internal bus 69 has a memory means (ROM) 63 in which various control programs including an authentication processing program are stored. And a memory means (RAM) 64 functioning as a working area is connected via a memory controller 65. The internal bus 49 is further connected to the Internet 24 to establish communication with the receiving system 40, and then connected to the Internet interface unit 36B for transmitting the packet data described above.

  FIG. 3 shows a specific example of the receiving device 50 in the receiving system 40. Although this receiving device 50 can also use the configuration of the receiving device that constitutes the above-described viewing system, FIG. 3 shows a configuration specialized for the present invention.

  The receiving device 50 is a receiving device with a viewing restriction function, and includes a receiving device main body 50A that receives video information and related information acquisition means 50B that acquires information related to the reception position of the video information. The receiving apparatus main body 50A has a function of storing area information for storing viewing target area information of video information, and a viewing determining function for determining whether reception position related information is within the viewing target area when receiving video information. .

  Then, control is performed so that the received video information can be viewed only when the viewing determination means determines that the reception position of the receiving apparatus body is within the viewing target area. This can provide a viewing restriction function.

  As shown in FIG. 3, the receiving apparatus main body 50A has control means 51 including a CPU that controls the entire apparatus and provides a viewing restriction function. An internet interface unit 58 is connected to the internal bus 49 provided in association with the control means 51, and video information (packet data) received via the internet interface unit 58 is supplied to the AV conversion unit 57. .

  In the AV converter 57, the packet data as the video information is returned to the transport stream data and then decompressed / decoded, and converted into the television signal as the original video information. The television signal is supplied to the television receiver 48 through a video output terminal (including an audio output terminal) 57a.

  A key operation unit 54 is connected to the internal bus 49, and a memory means (ROM) 52 storing a control program for executing various controls including a program for determining a viewing target area, and a working Memory means 53 such as a RAM functioning as an area is connected via a memory controller 55.

  Note that the operation information of the key operation unit 54 and various types of information accompanying the designated processing program are displayed using the screen of the television receiver 48 connected to the receiving device 50.

  The internal bus 49 is further connected with area information storage means 56. The storage means 56 is a database of viewing target area information using a semiconductor memory such as a RAM.

  The area information is information for specifying the viewing target area. The viewing target area is a contractable content viewing area (regional area) set for each provider. For example, when the pay content provider is SKY Perfect TV, the viewing target area is limited in Japan. The service entities that limit the viewing area are not limited to Japan, but are present in various countries around the world. The storage means 56 described above stores information that can specify a viewing target area related to a specific service entity. Preferably, viewing target area information related to these service entities is stored in the storage unit 56 so that all service entities currently existing in the world can be covered.

  Therefore, the storage means 56 stores the service provider and the information on the viewing target area related to the service provider. In addition to these, an identification flag indicating which viewing target area is contracted with the service entity is also stored in association with the service entity. Of the stored information stored in the storage unit 56, at least the addition and deletion of the identification flag can be updated at any time via a designated organization (for example, a service entity).

As information on the viewing target area, various information (receiving position related information) in the viewing target area shown below can be considered.
(1) Latitude / longitude information (2) Transmission / reception frequency used in mobile phone base station (3) Transmission frequency of broadcasting station (4) Timekeeping frequency used by radio clock base station

  With respect to the information on the viewing target area, the receiving position related information receiving unit 50B acquires information on the receiving position where the receiving device 50 is placed. For example, when the latitude / longitude information is stored in the storage unit 56, the latitude / longitude information of the current position is acquired by the reception position related information reception unit 50B.

  On the other hand, since the receiving apparatus 50 has a content contract with a specific service entity, the service entity is identified by determining the presence or absence of an identification flag that is contract identification information. When the contracted service entity is an operator in Japan, only the viewing target area information related to the operator in Japan is read from the storage means 56. And collation with the received latitude / longitude information is performed.

  When the collation results match, the place where the receiving device 50 is placed is in Japan, and the mode is determined to be within the viewing target area, and the mode is changed to a mode in which contract content can be acquired. On the other hand, in the case of a mismatch, the receiving device 50 determines that it is out of the service area (outside Japan) and performs control so that contract content cannot be acquired. Thus, the service area can be limited only to the viewing target area.

  Even if the service entity is a business operator outside Japan, when viewing a contract with that business operator, only viewing area information (latitude / longitude information) including the service area of the business operator is read out. Thus, a collation process and a determination process with the received latitude / longitude information are executed.

  Next, specific information about viewing target area information and its collation and determination processing will be described with reference to FIG.

(Specific example 1)
FIG. 4 shows a specific example of the receiving device 50 when latitude / longitude information is used as information on the viewing target area. Therefore, the GPS receiving unit 50Ba is used as the receiving position related information receiving unit 50B. On the other hand, latitude / longitude information as shown in FIG. 5 is stored in the storage means 56 for each viewing target area.

  In FIG. 5, the viewing area is divided into a Japanese area and an overseas area, and latitude / longitude data that covers the whole of Japan (geographic area) is stored in the Japanese area. Similarly, latitude / longitude data covering each country (geographic area), which is each service area, is stored for each site operated by a service entity (business operator) even in an overseas area.

  Further, a viewing target area is specified in the storage unit 56 so that the contract content can be viewed using the receiving device 50. For example, when the receiving device 50 is a receiving device that has contracted with a business operator in Japan, an identification flag indicating that the contract is made in the Japan area is set.

  FIG. 6 shows an example of collation and determination processing. When the mode for viewing the contract content is selected, the processing program of FIG. 6 is activated. When this processing program is activated, the GPS receiver 50Ba is first activated to obtain latitude / longitude information (GPS information) X at the current location (step 81). Subsequently, the storage means 56 which is a database is searched to search for a country area with an identification flag (step 82).

  When the country area is specified as a result of the search, the latitude / longitude information Y of the specified country area is read out. For example, when the identification flag is attached to the Japan area as shown in FIG. 5, the latitude / longitude information Y of the Japan area is read (step 83).

  Thereafter, the acquired latitude / longitude information X is compared with the read latitude / longitude information Y (step 84). If the acquired latitude / longitude information X does not match the Japanese latitude / longitude information Y read from the storage means 56, it can be determined that the receiving device 50 is located outside the Japan area. .

  Based on this determination result, a display indicating that viewing is not possible is displayed on the television screen of the television receiver 48, for example, “Not a viewing target area”, and an instruction is given to select another mode (step 85). ).

  On the other hand, when the obtained latitude / longitude information X matches the latitude / longitude information Y of Japan read from the storage means 56, the transmitter 34 is accessed via the Internet 24, Authentication processing between the receiving device 50 and the transmitting unit 34 is performed (step 86).

  When the authentication process is completed and communication with the contract base station 30 is established, a message such as “communication is possible” is displayed on the television screen, and the selection of contract content is instructed (step 87). Thereafter, the designated contract content is acquired from the tuner unit 32 and received via the transmission unit 34 and the Internet 24 (step 88). Since the received contract content is displayed on the television screen, the received content video can be viewed in the same manner as the video from the television receiver 48.

  In this way, when the viewing target area is determined using the latitude / longitude information, if latitude / longitude information covering the whole of Japan is stored, it is accurately determined whether or not the transmission place of the receiving device 50 is in Japan. Therefore, it is possible to correctly determine the viewing target area.

(Specific example 2)
FIG. 7 shows a case where a base frequency transmitted from a mobile phone base station is used as information indicating the viewing target area. Therefore, the mobile phone base station frequency receiving unit 50Bb is used as the receiving position related information receiving unit 50B.

  FIG. 8 shows main transmission / reception frequencies used in mobile phone base stations. FIG. 8 shows the relationship between the base station frequency and the country area when classified into the Japan area, the Europe area, the Asia area, and the North America area as the country area where the mobile phone is used.

  In the Japan area, all base frequency bands (six types of frequency bands from 0.8 to 2.1 GHz) are used, while in other areas, two to five types of the six types of frequency bands are used. Frequency band is used. Therefore, three types of frequency bands of 0.8 GHz, 1.5 GHz, and 2.0 (2.1) GHz are used as determination frequencies for the country area.

  The country area is determined using these three types of frequency bands. For example, a case where an identification flag is attached to the Japan area as shown in FIG. 8 will be described. Also in this specific example, when the contract content reception mode is selected, the cellular phone base station frequency receiving unit 50Bb is first activated. Then, the base station frequency existing around the place where the receiving device 50 is placed is received and stored.

  On the other hand, the country area with the identification flag is searched, and the base station frequency band of the Japanese area is read from the storage means 56. Thereafter, a collation process is performed. When the three base station frequencies can be received simultaneously, it can be assumed that the receiving device 50 is located in Japan. As a result, the contract content can be viewed.

  However, when the receiving device 50 is brought outside of Japan, for example in Europe, only 0.8 GHz can be received as the base station frequency, and other base station frequencies (1.5 GHz and 2.0 GHz) can be received. Because it is not possible, the verification results do not match. Therefore, in this case, it may be determined that the area is outside the viewing target area.

  Contrary to this setting example, when the receiving device 50 contracted with a provider in the European area is brought into Japan, it receives three base station frequencies and is thus determined to be outside the viewing target area. Therefore, the viewing target area can be specified by using a plurality of mobile phone base station frequencies.

(Specific example 3)
FIG. 9 shows a case where the transmission frequency of the broadcasting station is used as information indicating the viewing target area. Therefore, a tuner unit 50Bc that receives a broadcasting station is used as the receiving position related information receiving unit 50B. As a transmission frequency band (broadcast frequency band) of a broadcasting station, any one of a television broadcast band, a radio broadcast band and an FM broadcast band, or a combination of these broadcast frequency bands can be used.

  FIG. 10 exemplifies frequency bands used in the three countries of Japan, Korea, and China for each of the FM broadcast frequency band and the television broadcast frequency band as the broadcast frequency band stored in the storage unit 56. .

  In any broadcasting frequency band, an approximate frequency band is used, so it is difficult to determine a country area with only one broadcasting station. Therefore, a plurality of broadcast frequency bands are received and the inside / outside of the viewing target area is determined.

  In order to perform this determination processing, a reception band is specified as shown in FIG. 11, and a plurality of broadcast stations are received. The viewing area will be in Japan.

In the verification / determination process shown in FIG. 11, first, the tuner unit 50Bc is started up, and then a reception band is selected (step 91). For example, the FM frequency band is selected.
Next, the frequency of the broadcast station and the received intensity that can be received by sweeping the frequency within the reception band are acquired and stored (step 92). As the broadcast station (broadcast frequency) to be stored, 3 to 4 stations are preferable.

  On the other hand, the country area in the storage means 56 is searched to identify the country area where the identification flag is set. All the information of the specified country area, in this example, FM broadcast stations in Japan (frequency and possibly the name of the broadcast station) is read from the storage means 56 (step 93).

  Thereafter, the broadcast frequency of the broadcast station that has been received and the read broadcast frequency are sequentially verified (step 94). When all of the broadcast frequencies of the received broadcast stations coincide with the read broadcast frequency, the receiving device 50 executes the subsequent service on the assumption that it exists in the viewing target area. Since this service process is the same as the process after step 86 in FIG. 6, a description thereof will be omitted.

  On the other hand, when there is a broadcasting station that does not match even one station, the reception intensity of the broadcasting station is checked (step 95). If it is weaker than the received broadcast station's reception strength, it is considered that the broadcast wave is coming from another country area (spillover). In this case, it is determined that the broadcast station has been received within the viewing target area. The subsequent service (step 85) is executed. When the reception sensitivity on the read side is larger, that is, on the broadcast station side on which the higher reception sensitivity is read, the receiving device is temporarily in the viewing target area. 50 is determined to be located, and the process proceeds to step 86 side. When country areas are adjacent, it is expected that the number of such judgment cases will increase.

(Specific example 4)
FIG. 12 shows an example in which a standard timekeeping frequency for a radio timepiece is used as information on the viewing target area. Accordingly, the receiving position related information receiving means 50B functions as the radio-controlled timepiece standard frequency receiving unit 50Bd.

  The standard frequency for radio clocks varies from country to country. The identification signal (ID signal) is also different. Therefore, in this example, the country area is specified by using the difference between the identification signals. FIG. 13 shows the relationship between the identification signal (call sign) of the standard frequency time signal station and the frequency used. The frequency is an example of a long wave band.

  The identification signal used in Japan is a JJY signal as is well known. On the other hand, a unique identification signal is used for each country, like a BPC signal or a BPL signal is used in China, and a DCF77 signal is used in Germany belonging to Europe.

  When the standard frequency for the radio timepiece is used as information for identifying the viewing target area, the identification of the area is easy by using the identification signal attached to the standard frequency instead of the standard frequency itself.

  Therefore, when the standard frequency for the radio timepiece is used, the viewing target area is specified using the identification signal. The storage means 56 stores the standard frequency and identification signal for the radio timepiece in each country.

  The standard frequency receiver 50Bd shown in FIG. 12 receives an identification signal attached to the standard frequency together with the standard frequency. The received standard frequency and identification signal are temporarily stored in the RAM 53 (see FIG. 3). And the identification flag shown in FIG. 13 is searched, and the country area used as viewing-and-listening area is searched. Thereafter, an identification signal related to the standard frequency belonging to the country area with the identification flag is read out and collated with the received identification signal. If they match, it is determined that they are received within the service area, and the process proceeds to a process of receiving the contract content within the viewing target area.

  In this way, information regarding the viewing target area is prepared in advance, and whether or not the receiving device 50 is within the viewing target area by collating with information regarding the reception position actually received by the receiving device 50 (reception position related information). Judgment is made. By doing so, the service area of the contract content can be identified almost certainly.

  The present invention can be applied to a receiving apparatus that receives video information with a limited service area, such as a satellite broadcasting service.

It is a block diagram which shows an example of the video viewing system to which the receiver concerning this invention is applied. It is a block diagram which shows an example of the transmission part which comprises a video viewing system. It is a block diagram which shows an example of the receiver which comprises a video viewing system. It is a block diagram which shows an example of a receiver when latitude / longitude information is used as information regarding a viewing target area. It is a figure which shows the latitude and longitude information for every country area. It is a flowchart which shows the example of a determination process of the viewing target area using latitude / longitude information. It is a block diagram which shows an example of a receiver when the base station frequency for mobile phones is used as information regarding a viewing target area. It is a numerical example which shows an example of the base station frequency for mobile phones. It is a block diagram which shows an example of a receiver when the transmission frequency of a broadcasting station is used as information regarding a viewing-and-listening area. It is a numerical example of an example of the transmission frequency of FM broadcasting station and a television broadcasting station. It is a flowchart which shows the example of a determination process when the transmission frequency of a broadcasting station is used as information regarding a viewing-and-listening area. It is a block diagram which shows an example of a receiver when the standard frequency for radio timepieces is used as information regarding a viewing target area. It is a numerical example which shows an example of a standard frequency information time station.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Viewing system, 20 ... Video information source, 22 ... Satellite broadcast content storage part, 24 ... Internet, 30 ... Base station for subscribers, 32 ... Tuner for satellite broadcast 34: Transmission unit (base station) 40 ... Reception system 50 ... Reception device 52 ... TV receiver 50A ... Reception device body 50B ... Reception position related Information receiving means

Claims (6)

A receiving device body for receiving video information;
The related information acquisition means for acquiring the reception position related information of the video information,
The receiver main body is
Area information storage means for storing the viewing area information of the video information;
Viewing determination means for determining whether the reception position related information is within the viewing target area when receiving the video information;
With a viewing restriction function, the received video information is changed to a viewable state only when the receiving position of the receiving device main body is determined to be within the viewing target area by the viewing determining means. Receiver device. The reception device with viewing restriction function according to claim 1, further comprising a signal conversion function for converting the input video information into a television signal and outputting the converted television signal. Receiver device. The viewing target area information is latitude and longitude information,
The receiving device with a viewing restriction function according to claim 1, wherein the area storage means stores latitude and longitude information of the viewing target area. The viewing target area information is base station information of a mobile phone base station,
The receiving device with a viewing restriction function according to claim 1, wherein the area information storage means stores a communication frequency of a mobile phone base station existing in the viewing target area. The viewing target area information is broadcast station information,
The receiving device with a viewing restriction function according to claim 1, wherein the area information storing means stores the transmission frequency of the broadcasting station existing in the viewing target area. The viewing target area information is radio clock base station information,
The receiving device with a viewing restriction function according to claim 1, wherein the area information storage means is a transmission frequency from the radio clock base station in the viewing target area.

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