JP2003333440A - Receiving device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that a receiving device for a digital broadcast which transmits program information by adding a reception target area code cannot watch and listen to program information for a present reception area, and watches and listens to program information of a wrong area when a user moves by a traffic or the like. <P>SOLUTION: A reception area detector 200 automatically detects a reception area corresponding to a present location. If a program which is watched and listened to is selected by a remote control operation or the like of a user, an EPG processor 140 instructs a reception broadcast service by outputting a service identification for specifying a broadcast service of the program to a program selector 160. The program selector 160 interprets each program information described in PMT, and extracts a reception target area. Based on the reception target area, the program selector 160 selects only the program information in which the present reception area detected by the reception area detector 200 is included in the reception target area, instructs a demultiplexer 110 a stream form descriptor or the like of the program information, and decodes the obtained program information by a decoder 120. <P>COPYRIGHT: (C)2004,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiving apparatus, and
Is transmitted by adding the target area code by digital broadcasting, etc.
Receiver that can receive and reproduce program information according to the reception area
About the installation. [0002] In digital broadcasting, a target area code is added.
In addition, data such as telops
By transmitting image information, audio, and other program information,
It is customary to provide each program information. This
As a result, information guidance, disaster information, advertisements for specific areas
Etc. can be provided. [0003] For example, the Radio Industry Association (ARIB: Associati)
on of Radio Industries and Businesses)
For digital broadcasting based on ARIB STD-B10
Using the specified target area descriptor, each program information
The target area can be specified. [0004] FIG. 14 is a block diagram showing the reception of the above digital broadcast.
FIG. 2 shows a block diagram of an example of a conventional receiving device. Smell
First, when receiving a digital broadcast, the user
The area information is set in the reception area setting device 150. Reception area
The output of the setter 150 is input to the program selector 160, and the current
To select program information for the current reception area.
You. The receiver 100 follows the instruction from the program selector 160
Selection using a predetermined frequency of the selected channel as a carrier
Select and receive the digital broadcast wave signal of the channel
Demodulates and corrects errors according to a predetermined method, and
Is output. This received digital signal conforms to ARIB standard
In case of compliant digital broadcasting, ISO / IEC1381
S-1 (commonly known as MPEG-2 Systems) standard
Transport stream (TS). [0005] The transport stream shown in FIG.
As shown in FIG.
It consists of a signal train, and multiple broadcast services are provided by packet multiplexing.
Transmission of data. The above TS packet is
As shown in FIG. 15 (b), the header 4 bytes and the adaptation
Consists of 184 bytes
It is. Each TS packet is a 13-bit packet in the header.
Each broadcast can be identified by a packet identifier PID.
Encoded data such as service data, video, audio, etc.
Transfer using TS packets with different PIDs
Thus, multiplex transmission is realized. Here, digital data conforming to the ARIB standard is used.
In broadcasting, SI (Serv
attribute information on broadcast programs called ice Information)
And PSI (Program Specific Information)
Broadcast number from transport stream
The reception control information is used to obtain the program information of each set.
It is multiplexed. [0007] In the SI, information on a broadcasting service is transmitted.
SDT (Service Description Table) for sending
And EDT for transmitting information about individual programs
(Event Description Table)
You. Sl uses a section format as shown in FIG.
Transmitted. Each table has a specific table identification in advance.
Child and PID are assigned, and the payload of the TS packet
Transmitted by the unit. [0008] The demultiplexer 110 uses the specific PID.
Separate TS packet and send SI to EPG processor 140
Output. EPG processor 140 broadcasts based on SI
Generate a program guide in the form of data, video, audio, etc.
Output to the synthesizer 130 for presentation to the user. Also, E
In the PG processor 140, the user operates a remote controller or the like.
When a program to watch is selected, the broadcast service for that program is specified.
Output service identification information to be specified to program selector 160
Thus, the receiving broadcast service is instructed. The demultiplexer 110 is a program selector 160
According to these instructions, the data, video, sound
A TS packet of a predetermined PID is separated for program information such as voice.
Release encoded data such as data, video, audio, etc.
Decoding by the method corresponding to the stream format descriptor to be described
And outputs the result to the decoder 120. [0010] The decoder 120 receives the signal from the demultiplexer 110.
Coded data (AV data) such as data, video and audio
In a predetermined manner according to the stream format descriptor.
Data, video, and sound are decoded by a method that complies with the respective standards.
The encoded data (AV data) such as voice is output to the synthesizer 130.
Power. For example, if the data is ISO / IEC 138
18-6 (commonly known as DSM-CC)
ARIB STD-B24 standard to be transmitted
B-XML (Broadcast X
ML) data and the video is ISO / IEC13818
-2 (commonly known as MPEG-2 video) standard
Data encoded using the ISO /
IEC13818-7 (commonly known as MPEG-2 AAC)
Encoded data encoded in a standard-compliant manner
In this case, decrypt and output the
You. [0012] The synthesizing unit 130 receives the audio and video from the decoder 120.
Program data, video, audio, and EPG processor 1
Data, video, and audio related to the broadcast program guide from 40
Display or turn off in accordance with the user's remote control operation, etc.
To display, speakers, etc.
Power. In this conventional receiving apparatus, the
For example, the user can operate the remote control as an initial setting.
Set by operation. Also, the numbers that make up the broadcast service
In the group information, specify the target area using the target area descriptor.
If there is any, check with the set reception area
Select and output. [0014] However, the conventional reception
The device listens to program information for the current reception area.
To receive information about the current coverage area,
Since it is necessary to input to the setting device 150, for example,
When the installation location is not fixed but moves like a terminal
If you move to a different reception area,
50 must be filled with information about the current reception area
No. [0015] For this reason, a portable receiving device such as a portable terminal is used.
In the communication device, the setting operation of the receiving area becomes complicated, for example,
If you do not know the receiving area while traveling by transportation
Or if the destination is set incorrectly,
Inability to view program information targeting
There is a problem of viewing program information in a region where the information has been lost. The present invention has been made in view of the above points,
It is transmitted with the target area code added in digital broadcasting etc.
A receiving device that can receive and reproduce program information according to the receiving area
The purpose is to provide. [0017] To achieve the above object,
Therefore, the receiving apparatus of the present invention is capable of receiving program information of a viewed program.
Digital broadcast signal containing an area designator
Receiving means for receiving, and a digital
Extracting means for extracting a range designator, and a mobile communication system
A wireless communication means for performing wireless communication with the base station;
Wireless communication between the communication means and the base station, and
The current reception area corresponding to your location is determined by wireless communication from the base station.
Receiving area detecting means obtained through communication means, and extracting means
The receiving area indicated by the area specifier extracted by
Includes the current reception area acquired by the communication acquisition means
If you select the desired program information from the digital broadcast signal,
And a decoding means for decoding the data.
The area acquisition means is connected to a base station in the mobile communication system.
The analysis means in the service center to be continued
Position information of the base station in wireless communication with the base station, and wireless communication with the base station.
Based on the radio field strength data between
To analyze the current location of the
The receiving area determination means for each
A regional information database in which each receiving area is associated
Refer to the current reception corresponding to the analyzed current position
Identify the area and base the identified current reception area
That it is obtained through the station and wireless communication means
Features. According to the present invention, reception of program information of a viewing program
Digital broadcast signal that includes an area designator that specifies the target area
And the program in the receiving area specified by the area designator
Even if the receiving device that selectively receives information moves,
Of your location (current location)
Reception area information can be obtained. Also, in the present invention
Stores the memory for the regional information database in the receiving device
For detecting the current location while deleting from
Can also be deleted from the receiving device, and the location information of the mobile communication device
Detection means can be used. The above-mentioned receiving area acquiring means includes a plurality of receiving area acquiring means.
Each location information is associated with a reception area in advance.
Stored regional information database and current location detection
Based on the current location detected by the means,
Determine the receiving area by referring to the database
Alternatively, it may be constituted by means. In the present invention,
The receiving area acquiring means is a base station of a mobile communication system.
A wireless communication device that wirelessly communicates with a mobile communication system.
Service services connected via base stations and switching
Each of a plurality of location information provided in the
The area stored in advance with the receiving area
Exchange information database from wireless communication device to base station and exchange
Refer to the current location notified via the
The receiving area determined in the station is
Reception acquisition means for receiving and acquiring via a line communication device
A configuration consisting of the following may be used. In the present invention, the local information database
The memory for the source can be eliminated in the receiving device. Next, an embodiment of the present invention will be described.
This will be described with reference to the drawings. FIG. 1 shows a receiving apparatus according to the present invention.
FIG. 1 shows a block diagram of one embodiment. In FIG.
The same reference numerals are given to one component and the description thereof is omitted as appropriate.
You. The embodiment of FIG. 1 has a reception area detector 200.
There is a feature in the point. Configuration and operation of reception area detector 200
Will be described later. First, the viewing program of this receiver is
Each program information that constitutes, ie, data, video, audio, etc.
FIG. 2 is a flowchart of the selective reception process of FIG.
A description will be given with reference to FIG. First, a digital broadcast conforming to the ARIB standard
Upon receiving the transmission service, the reception area detector 200
The current reception area is detected (step S11). Receiver
100 selects the selected channel according to the instruction from the program selector 160.
A selected channel whose carrier is the specified frequency of the channel
Selectively receive the digital broadcast wave signal of the
Key and error correction, and output the received TS packet sequence
You. Here, a digital signal conforming to the ARIB standard
The transport stream of the broadcast signal
A broadcast program called SI (Service Information)
Attribute information and PSI (Program Specific Inf)
ormation) from a transport stream called
To obtain information on each program that makes up the broadcast program of interest
The reception control information is multiplexed. The demultiplexer 110 receives a TS packet of a specific PID.
The SI is separated and the SI is output to the EPG processor 140.
You. In the EPG processor 140, the broadcast program plan is based on the SI.
Is generated in the form of data, video, audio, etc.
Output to the synthesizer 130 for presentation (step S1
2). In addition, the EPG processor 140 stores the user's remote
When a program to be viewed is selected by operating
Service identification (hereinafter referred to as Service
ce_id) to the program selector 160,
An instruction for a broadcasting service is given (step S13). On the other hand, the PSI includes NIT (Network
Information Table), PAT (Program Association T)
capable) and PMT (Program Map Table). PS
I is also transmitted using a section format as shown in FIG.
It is. A specific table identifier is assigned to the name table in advance.
NIT and PAT are specified PID in advance.
Is assigned and transmitted in the payload of the TS packet.
It is. NIT is a broadcast for transmitting each broadcast service.
Information about the channel, and the target
Transport streams with multiplexed transport services
Describes the carrier frequency, modulation method, etc. for receiving the system
Have been. The PAT is often used for transport streams.
Information about the composition of the broadcast service
And the TS path where the PMT for each broadcast service is transmitted.
The PID of the socket is paired with the service_id.
Has been described. The PMT has a configuration as shown in FIG.
Program information such as data, video, and audio that make up the broadcast service
This is information about the information. As shown in FIG. 3, a common control is applied to each program information.
Control information is described in descriptor group 1. FIG. 3 shows a dotted frame.
The type of program information is described in the stream format
Child, PID is elementary PID, and its control information is recorded.
As predicate group 2, for each program information such as data, video, audio, etc.
Is described in Here, the program information targets a specific area.
In the case of digital broadcasting conforming to the ARIB standard,
Target for specifying the area in the configuration as shown in Fig. 4
A regional descriptor is added to descriptor group 2. At this time,
If the target area descriptor is not added to predicate group 2,
For all regions. BS digital broadcasting conforming to ARIB standard
In FIG. 4, the area description method designation 8 bit is hexadecimal.
0x01, where the area specifier is 56 bits
Stipulated. Then, the 56-bit region specifier
Classification as shown in Table 1 with the prefecture as the main map
Use to specify the target area. [Table 1] For example, if only the whole Hokkaido area is targeted, the area designator
For 56 bits, as can be seen from Table 1, the first bit
And the second bit are set to 1, and the other bits are set to 0.
If only the entire Tokyo area is targeted, the area designator
Only the 14th and 49th bits of 56 bits are 1
And the other bits are set to 0. By using this target area descriptor, for example,
For example, a broadcast targeting multiple regions, which differs in each region
When providing telops for weather information, or
For each region, such as providing different commercials
Target area descriptor in the latest information such as data, video, audio, etc.
Is added. As a result, program information for the area
Information can be provided. Returning to FIG. 1 and FIG.
In step S13, the EPG processor 140 displays the selected
Service_id specifying the broadcast service of the program
By outputting to the program selector 160, the reception broadcast service
And the PSI is received in the following procedure
(Step S14). The demultiplexer 110 outputs the NIT of the specific PID.
Are separated and supplied to the program selector 160. Program selector 1
In 60, the service_ from the EPG processor 140
NIT multiplexes target broadcast services based on id
To receive the transport stream
Decode the carrier frequency and modulation method and send it to the receiver 100
To instruct. Next, the demultiplexer 110 responds to the above instruction.
Target broadcast server output from the receiver 100
Service multiplexed transport stream
Received as input, and
The PAT with the constant PID is separated and supplied to the program selector 160
You. The program selector 160 receives the s from the EPG processor 140
Purpose described in PAT based on service_id
The PMT PID to receive the broadcast service
Then, it instructs the demultiplexer 110. Next, in the demultiplexer 110, the desired broadcast
Separate PMT of service and supply to program selector 160
You. In the program selector 160, each program described in the PMT is
For information, i.e., data, video, audio, etc.
Decode the stream type descriptor, PID, and descriptor group 2. This
At this time, in the present embodiment, as shown in FIGS.
Reception target areas are extracted from the target area descriptors of
Issue (step S15). Based on the above-described extraction of the receiving target area,
The current reception area detected by the area detector 200 is
Select only the program information included in the elephant area and
Demultiplexer 110 converts the stream format descriptor and PID of the
And the obtained program information is decoded by the decoder 120.
Output (Step S16). Next, the structure of the reception area detector 200 in FIG.
The configuration and operation will be described in more detail. Figure 5 shows the receiving location
FIG. 2 shows a block diagram of a first embodiment of an area detector. Same figure
In the first embodiment of the reception area detector 200 of FIG.
The reception area detector 200a in the form includes a GPS receiver 210
, Reception area determiner 220 and area information database 2
30. The GPS receiver 210 is a person
Global Positioning System using Engineering Satellite (Global Positio
known system that acquires latitude and longitude based on
It is good. The regional information database 230 is, for example, as shown in Table 2
As shown in the figure, the latitude and longitude indicating prefectures, municipalities and representative points
And longitude and the receiving area are stored in association with each other. [Table 2] Next, the operation of the reception area detector 200a shown in FIG.
The operation will be described with reference to the flowchart of FIG. G
The PS receiver 210 has a plurality of artificial satellites for position detection.
Regularly determine the latitude and longitude of your current location using signals sent from stars
From the reception area detector 200a
Information consisting of latitude and longitude of the current location detected by GPS
Is output to the reception area determiner 220 (step S2).
1). Subsequently, the reception area determiner 220 determines the representative point minimum distance.
The separation D is initialized to the initial value (99999 km) (step
S22) Further, the database search counter i is initialized to 0.
(Step S23). Next, the reception area determiner 220 receives the area information
Request i-th municipal data from database 230
(Step S24). Subsequently, step S2
In step S24, the latitude and longitude of the current location acquired in step 1
I-th municipalities acquired from the regional information database 230
From the latitude and longitude of the representative point of the village,
Calculate the distance d between the municipalities and the representative point (step
Step S25). To calculate the distance from the latitude and longitude of two points,
Publicly known, for example, as of November 2001
Website (http://vldb.gsi.go.jp/sokuch)
i / surveycalc / bl2salfa / bl2salfa.html)
Or another method. Next, between the two points calculated in step S25,
The distance d and the minimum distance of the representative point initialized in step S22
D and d <D, that is, the representative point of the ith municipalities
Is closer than the nearest municipalities currently held
A determination is made (step S26). If d <D, i
Keep the municipalities data as the nearest municipalities
(Step S27), the representative point minimum distance D calculated
The distance d between points is substituted (step S28). On the other hand,
If it is determined in step S26 that d ≧ D,
The nearest neighbor city currently held by the representative point of the i-th municipalities
If it is far from the town or village, step S27 and step S2
Skip 8 Next, the database search counter i is set to 1.
Increment (step S29).
Whether the database to be searched from the value of i after
A determination is made (step S30). If not finished,
Returning to step S24, the processes of steps S24 to S29 are repeated.
Return. In case of termination, the nearest municipalities currently held
Is output as the reception area (step S3).
1). As described above, the reception area determining unit 220
Local information data based on location information from PS receiver 210
By detecting the receiving area by searching the database 230,
The current reception area can be specified. Therefore, FIG.
In which the receiving device having the above configuration is incorporated in a mobile phone, for example.
, Always automatically determine where you go
be able to. In the above embodiment, municipalities nationwide
Full database search based on the latitude and longitude of village representative points
As described, the receiving location for the latitude and longitude for each predetermined unit
The current area obtained from a GPS receiver etc. using the area as a database
Refer to the table by rounding the latitude and longitude of the location for each predetermined unit
And other methods may be used. Next, a second embodiment of the reception area detector
Will be described. FIG. 7 shows the reception area detector 20 in FIG.
0 shows a block diagram of a second embodiment. Figure 7
A second embodiment corresponding to the reception area detector 200 of FIG.
The reception area detector 200b in the form of
21, regional information database 230 and wireless communication device 2
40. This receiving area detector 200b
Are the base stations 301 and 302 of the mobile radio communication system.
303, the exchange 400 and the service center 500.
It was used. In FIG. 7, there are only three base stations.
Although they are shown as representatives, there are actually many
(The same applies to other figures). Next, the operation of the reception area detector 200b will be described.
Will be described with reference to the flowchart of FIG. Receiving
The region determiner 221 is connected to the base via the wireless communication device 240.
Connects to the nearest base station among the stations 301 to 303 by wireless line
The base station then passes through the exchange 410 of the exchange 400.
The reception position analysis device 51 of the service center 500
0 (step S41). Next, the reception area decision
The constant unit 221 calculates the latitude and longitude of the current location by a service center.
Request for 500. The service center 500 receives this request.
Then, in the reception position analysis device 510, the base station 30
The receiving device, which is a portable terminal among the devices 1-3, has its own service.
Service area within the service area (wireless communication
Location information of a base station that is in wireless communication with the communication device 240)
And the radio field intensity between the base station and the wireless communication device 240.
Data is obtained from the base station and the reception area detector 200
The latitude and longitude of the current location b are analyzed and output. This latitude
And the longitude information, the exchange 410, the wireless communication device 240
Reception area detection via a base station connected to a wireless communication line
It is transmitted to the output device 200b. Next, the receiving location in the receiving area detector 200b
The area determiner 221 determines the reception position in the service center 500.
The latitude and longitude information of the current location from the location analyzer 510
Then, the wireless communication device 24 with the reception position analysis device 510
The line connection with 0 is disconnected (step S43). Continued
The reception area determiner 221 receives the reception position analysis device 510.
Using the latitude and longitude of the current location obtained from
The reception area is determined by the same processing as in step S22 and thereafter (step S22).
Step S44), the determined reception area information is used for the program selection in FIG.
The data is output to the selector 160 (step S45). As described above, the reception area detection according to this embodiment is performed.
The output device 200b transfers the information to obtain the information of the reception area.
Base stations 301 and 3 constituting the mobile radio communication system
02, 303, exchange 400 and service center 50
0 is used, so the device scale for detecting the reception area
The burden on the user can be reduced. Next, a third embodiment of the reception area detector
Will be described. FIG. 9 shows the reception area detector 20 in FIG.
0 shows a block diagram of a third embodiment. In FIG.
The same components as those of 7 are denoted by the same reference numerals. In FIG.
And a third implementation corresponding to the reception area detector 200 of FIG.
The reception area detector 200c according to the embodiment includes the GPS receiver 2
10. Reception area acquisition device 250 and wireless communication device 240
It is composed of This reception area detector 200c
PS system and base station 30 of mobile radio communication system
1, 302, 303, exchange 400 and service center
-500. Next, the operation of the reception area detector 200c
Will be described with reference to the flowchart of FIG. Receiving
The communication area acquisition device 250 is based on the wireless communication device 240.
Wireless connection with the nearest base station among the base stations 301 to 303
The base station then switches the exchange 410 of the exchange 400.
Reception area determination device 5 of service center 500 via
30 (step S51). Next, the reception area obtaining unit 250 receives the GPS reception.
Transmitter 210 receives and acquires GPS signal from artificial satellite
To the GPS receiver 210
Request and acquire (step S52),
The latitude and longitude of the current location are connected to the line in step S51.
To the reception area determination device 530 in the service center 500
Notify (step S53). The reception area determining device 530 detects the reception area.
Based on the latitude and longitude of the current location notified from the device 200c.
, Regional information database in the service center 500
520, the same processing as in step S22 and subsequent steps in FIG.
To determine the receiving area. This receiving area determining device 530
The information of the reception area acquired by
Be sent waiting for their current coverage area acquisition request
Is acquired by the reception area acquisition device 250 (step
Step S54). The reception area acquisition unit 250 acquires a reception area.
Then, the receiving area determining device 5 by the wireless communication device 240
The connection to the line 30 is disconnected (step S55). this
As a result, the reception area detector 200c
Memory load for processing, processing load by receiving area search
Can be reduced. Next, a fourth embodiment of the reception area detector will be described.
Will be described. FIG. 11 shows the reception area detector 2 in FIG.
00 shows a block diagram of the fourth embodiment. FIG.
7, the same components as those in FIG. 7 are denoted by the same reference numerals. Figure
11 corresponds to the reception area detector 200 of FIG.
The receiving area detector 200d according to the fourth embodiment includes a receiving area detector 200d.
It is composed of the area acquisition unit 251 and the wireless communication device 240
I have. This receiving area detector 200d is used for mobile radio communication.
System base stations 301, 302, 303, exchange 40
0 and the service center 500. Next, the operation of the reception area detector 200d will be described.
Will be described with reference to the flowchart of FIG. Receiving
The communication area acquisition device 251 is based on the wireless communication device 240.
Wireless connection with the nearest base station among the base stations 301 to 303
Then, the base station switches the exchange 411 of the exchange 400.
Receiving area determining device in service center 500 via
531 (step S61). Next, the receiving location
The area acquisition unit 251 sends the reception area to the reception area determination device 531.
Request information. Determination of reception area in service center 500
Upon receiving this request, the device 531 receives the request.
In 511, the mobile terminal among the base stations 301 to 303
Is located within its own service area.
(The wireless communication with the wireless communication device 240
Location information of the base station, and the base station and the wireless communication device.
Data such as radio field intensity between
Of the receiving area detector 200d obtained through the switching station 400.
Lets you analyze the latitude and longitude of your current location. The latitude and longitude information is stored in the receiving area determining device.
Device 531 receives it as an input and
Using the regional information database 520 of FIG.
The receiving area is determined by the same processing as in step S22 and thereafter. this
The information of the reception area determined by the reception area determination device 531 is:
Switch 411, wireless communication device 240 and wireless communication line connection
To the reception area detector 200d via the base station
Transmitted and acquired by the reception area acquisition device 251 (step
Step S62). Acquisition of reception area in reception area detector 200d
When the device 251 acquires the information of the reception area, the service
Communication with the reception area determination device 531 in the communication center 500
The line connection with the device 240 is disconnected (step S6).
3). Subsequently, the reception area acquisition device 251 transmits the service center.
Select the receiving area information acquired from the program 500 in FIG.
Is output to the device 160 (step S64). As described above, the reception area detection according to this embodiment is performed.
The output device 200d is connected to the reception area detector 200b in FIG.
Advantages of the configuration of the receiving area detector 200c
Can be obtained. That is, for detecting the receiving position
Equipment scale can be reduced, and a regional information database
Memory load and processing load by receiving area search can be reduced
You. In the above embodiment, the broadcast service
At the start of receiving a service,
To view the program information specifying the receiving area.
That the current location is
Program information that specifies the receiving area
May be viewed. The reception by the reception area detector 200 shown in FIG.
In addition to this, as a position detection method,
Search channels to find regional broadcast channel patterns
Detected by comparison or detected in any other way
May be. It should be noted that the present invention is applied to a computer system.
It can also be realized by a program running on. FIG.
FIG. 10 is a block diagram of another embodiment of the receiving apparatus according to the present invention.
Show. This embodiment is configured by a computer system.
Control of each device based on the program
Central processing unit (CPU) 600 for performing arithmetic processing, and keys
Enter desired information using the board, mouse, etc.
Input device 610 and a device for storing programs and data.
Storage device 620 and a startup program of the computer itself.
Read-only memory (ROM) 630 for storing programs
And a lander that stores programs and temporary data when executed
Access memory (RAM) 640, video and audio
Output device 650 for outputting a broadcast signal and the like.
G for detecting the latitude / longitude of the current location
Communication between the PS receiver 670 and the service center
Communication device 680 connected by a bidirectional bus 681
It is said. The communication device 680 is connected to a communication medium 690.
Have been. Here, in the first embodiment shown in FIG.
The reception area detector 200a requires a communication device 680.
First, the reception area detector 2 according to the second embodiment shown in FIG.
00b does not require the GPS receiver 670. Also,
The local information database of the embodiment shown in FIGS.
The data of the resource 230 is stored in the external storage device 620.
I have. In the case of the receiving apparatus shown in FIG.
The device 660 includes the receiver 100, the demultiplexer 110,
From the decoder 120, the synthesizer 130, the program selector 160, etc.
It is configured. Also, the above-described reception area detector 200
It is described that a series of processes described in a to 200d are performed.
The received reception program is stored in the external storage device 620.
ing. Note that the receiving program is read from a recording medium.
And may be taken into this external storage device 620.
And transmitted via a communication network, broadcast wave, etc.
It may be taken into the unit storage device 620. In execution, the receiving program is
Transferred from the storage device 620 to the RAM 640,
0 indicates that the broadcast reception device 660 has received and decoded
Figure 4 where the receiving area is specified from digital data
Extract the area designator and use, for example, a GPS receiver 670
Is stored in the external storage device 620 at the current location obtained
Refer to the regional information database and obtain the
The receiving area corresponding to the current location is the
Broadcast receiving device when included in the target area indicated by the setor
660 is controlled to decode the digital data. As described above, in the reception of the broadcasting service,
By detecting the receiving area based on the current location,
Viewing program information that specifies the receiving area such as
If the reception area is unknown while traveling by Seki,
If the destination has been set incorrectly, the current coverage area
Is unable to view program information for
Can be solved. As described above, according to the present invention,
Area designation to specify the area to receive program information of viewing programs
Receive digital broadcast signal including
Device that selectively receives program information in the receiving target area
Has the following features. (1) According to the present invention, the receiving position of the destination (currently
Location) and obtains reception area information corresponding to the current location.
So that the receiving area is
If you don't know or the destination is set incorrectly
You can watch program information for the current coverage area
To watch program information in the wrong area
Can solve the problem of the coming. (2) According to the present invention, the current position of the receiving device is automatically determined.
Detect and refer to the regional information database at its current location
To automatically detect and set the reception area
Each time you move to a different coverage area,
Set information about current coverage area to current coverage area
Conventional input operation, which eliminates the need for
Wear. (3) According to the present invention, a base station and a mobile communication system
And a service center connected through an exchange
The reception area for each of the number of location information
By providing a pre-stored regional information database,
Is notified from the wireless communication device via the base station and the exchange.
Determined in the service center with reference to the current location
Received area via the exchange, base station and wireless communication device.
To receive and acquire the
Memory for the source can be eliminated in the receiver, and
Reduce processing load by receiving location analysis and receiving area search
be able to.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of one embodiment of the present invention. FIG. 2 is a flowchart for explaining the operation of FIG. 1; FIG. 3 is a diagram illustrating an example of a configuration of a PMT. FIG. 4 is a format diagram of a descriptor group 2 in FIG. 3; FIG. 5 is a block diagram of a first embodiment of the reception area detector in FIG. 1; FIG. 6 is a flowchart for explaining the operation of FIG. 5; FIG. 7 is a block diagram of a second embodiment of the reception area detector in FIG. 1; FIG. 8 is a flowchart for explaining the operation of FIG. 7; FIG. 9 is a block diagram of a third embodiment of the reception area detector in FIG. 1; FIG. 10 is a flowchart for explaining the operation of FIG. 9; FIG. 11 is a block diagram of a fourth embodiment of the reception area detector in FIG. 1; FIG. 12 is a flowchart for explaining the operation of FIG. 11; FIG. 13 is a block diagram of another embodiment of the receiving device of the present invention. FIG. 14 is a block diagram illustrating an example of a conventional receiving apparatus. FIG. 15 is a diagram showing a configuration of a transport stream and a configuration of a TS packet. FIG. 16 is a configuration diagram of an example of an SI. [Description of Code] 100 receiver 110 demultiplexer 120 decoder 130 synthesizer 140 EPG processor 150 reception area setting unit 160 program selector 200, 200a, 200b, 200c, 200d reception area detector 210, 670 GPS receiver 220, 221 reception area determiner 230, 520 area information database 240 wireless communication apparatus 250, 251 reception area acquisition unit 301, 302, 303 base station 400 exchange station 410, 411 exchange 500 service center 510, 511 reception position analysis apparatus 530, 531 Reception area determination device 600 Central processing unit (CPU) 620 External storage device 630 ROM 640 RAM 660 Broadcast reception device 680 Communication device

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 7/03 7/035

Claims (1)

Claims: 1. A receiving means for receiving a digital broadcast signal including an area designator for designating an area to receive program information of a program to be viewed and receiving the area designator from the received digital broadcast signal. Extracting means for extracting, wireless communication means for performing wireless communication with a base station of a mobile communication system, establishing wireless communication between the wireless communication means and the base station,
A receiving area detecting means for obtaining a current receiving area corresponding to a current position of the present receiving apparatus from the base station via the wireless communication means; and a receiving target area indicated by the area designator extracted by the extracting means. Decoding means for selecting and decoding desired program information from the digital broadcast signal when the current reception area acquired by the reception acquisition means is included, wherein the reception area acquisition means Analyzing means in a service center connected to the base station in the mobile communication system, the position information of the base station in wireless communication with the wireless communication means, and the base station and the wireless communication means Based on the signal strength data between
The present location of the receiving apparatus is analyzed, and the receiving area determining means in the service center is referred to a regional information database in which each receiving area is associated with each of a plurality of pieces of position information, and the analyzed current location is determined. A receiving apparatus for specifying a current receiving area corresponding to a position, and acquiring the specified current receiving area via the base station and the wireless communication unit.