JP2013131882A - Interlocked information distribution server device, and computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a program interlocked information provision system for providing information related to a program content in synchronization with progress of its TV program, by using a method which does not impose a burden on a viewer.SOLUTION: There is provided an interlocked information distribution server device comprising: means for extracting and providing interlocked information in response to an interlocked information start request including broadcast station identification information; interlocked information continuous request correspondence means for extracting and providing interlocked information in a next unit time frame in response to a request for requesting the interlocked information in the next unit time frame; and a program information database constructed by including a program information table for storing a set of a program identifier, broadcast station identification information, broadcast start time, broadcast end time, and information showing existence of the interlocked information for each program to be broadcast, and an interlocked information table for storing a set of a unit time frame identifier, a program identifier, lapse time after broadcast start, and information on an interlocked information content for each unit time frame which is obtained by further subdividing a time zone of the program to be broadcast.

Description

The present invention relates to a program-linked information providing system that distributes related information related to a program being broadcast via a network in synchronization with the broadcast.

In the past, various attempts have been made to provide viewers with information related to the content of programs being broadcast on TV.

(1: Introduce a dedicated website for the program)
The most basic one is that the broadcasting station or the program producer themselves set up a homepage (program site) for a specific program such as a life information program or a series drama, and introduces the URL of this homepage in the program. It provides information related to the program to consumers who have accessed the program site. This method can be considered as replacing the act of applying by postcard to a destination presented during broadcast of a program, which was often used before commercialization of the Internet, with the Internet. The viewer needs to record the URL by some method and manually input the URL to the personal computer. (In actuality, it is sufficient to search for a keyword related to a program.) This method does not require any special mechanism and can be easily implemented. However, it is difficult to provide information in synchronization with the progress of the program because it depends on the actions of the viewer.

(2: Providing program-related information using data broadcasting)
Using data broadcasting of BS digital broadcasting started in 2000 prior to terrestrial digital broadcasting, information related to programs is broadcast as content described in BML (broadcast markup language) and displayed on TV It is a method to make it. A digital broadcasting compatible TV has a function (BML browser) for interpreting and displaying BML. BML is a markup language very similar to HTML, and BML can provide links to resources on the Internet. Accordingly, it is technically possible to access content on the Internet through a link from a BML screen displayed on a digital broadcasting compatible TV connected to the Internet. However, many early digital broadcasting compatible TVs can only be connected to the Internet via a narrowband line, and the style of using a TV connected to the Internet has not become widespread. For this reason, BML content has become substantially different from the Internet content, but this has been in the direction of losing the motivation to actively enrich BML content. Therefore, the BML content specialized for the program being broadcast in the current terrestrial digital broadcasting is only as simple as the program introduction, and the BML content in which weather forecasts and news not related to the program being broadcast are browsed by data broadcasting Is the center of

(3: Display the QR code on the data broadcast screen)
As described above, many of the early digital broadcasting compatible TVs can only be connected to the Internet via a narrowband line, and the style of using the TV by connecting to the Internet has not become widespread, so BML displayed in data broadcasting A method has been devised and implemented in which a QR code is displayed on a screen, and this is taken by a portable terminal to guide a viewer to an Internet site. The background is that mobile phones equipped with a digital camera function and a barcode or QR code (registered trademark) decoding function have been widely used. For example, in Patent Document 1 and Patent Document 2, a TV code (BML browser) interprets and executes a script described in BML, so that a QR code is displayed on the TV screen with optimum luminance. With this method, the TV itself can access the Internet content (mobile content) related to the broadcast program via the 3G line from the mobile terminal of the viewer without connecting to the Internet. With this method, it is possible in principle to provide related information in synchronization with the progress of the program. However, the viewer is forced to take time to shoot the TV screen with the portable terminal.

(4: Use 1Seg data broadcasting)
Since around 2006, mobile phone terminals having a one-segment reception function have appeared on the market. Since 1Seg broadcasting has been standardized as digital broadcasting for mobile terminals, it is possible to easily transmit content linked to a program via data broadcasting and access a mobile site via a 3G line through a link on the data broadcasting screen. In Non-Patent Document 1, a shopping program was broadcasted by one-segment broadcasting, detailed information on products introduced in the program was displayed on the data broadcasting screen, and an experimental broadcast was conducted in which the user entered the mobile site through a link and purchased the product as it was. It has been introduced. In this method, since the broadcasting is limited to the one-segment broadcasting, the biggest difficulty is that the audience reach range is limited.

(5: Other methods)
Non-Patent Document 2 introduces a system in which data broadcasts are automatically displayed in conjunction with CM on-air timing of a specific TV station, and the contents of a campaign related to the CM can be posted. This method is to provide related information about CM (not the main program). In addition, when a channel is set to other than a TV station that provides a service using this system, information linked to the CM cannot be received.

Japanese Patent No. 4686217 Japanese Patent No. 4713178

Press release “Perform infomercial-linked data broadcasting trial” (searched on November 9, 2011), Internet <URL: http://bizex.goo.ne.jp/release/detail/140123/> Press release “Hakuhodo DYM develops interactive spot CM method using TV CM fully linked data broadcasting transmission system” (searched on November 9, 2011), Internet <URL: http://www.advertimes.com/ 20110214 / article6382 //>

The present invention was invented in order to overcome such drawbacks of the prior art, and in a manner that does not burden the viewer on information related to the contents of the program in synchronization with the progress of the TV program. It is an object to provide a linked information distribution server device and a computer program to be provided.

A first embodiment of the first invention of the present application for solving the above-described problem is an interlocking information distribution server device that responds to a request from a user terminal via a network,
A transmission / reception means for accepting a request from a user terminal via a network and returning response information according to the request;
A control means for calling a means for preparing response information in response to a request received by the transmission / reception means;
For linked information start request including broadcast station identification information,
The broadcast program corresponding to the current time and the broadcasting station is specified, the program information related to the program is extracted, and if the link information does not exist in the program, the first flag information is set as true as response information,
If linked information exists in the program, if both linked information in the unit time frame corresponding to the current time and linked information in the next time frame exist, obtain them as response information,
If there is linked information for the unit time frame corresponding to the current time, but there is no linked information for the next time frame, the linked information for the unit time frame corresponding to the current time is acquired, and the linked information for this time frame is obtained. A link information initial request handling means that creates information that makes the information and the second flag information true as response information;
For linked information continuation requests that request linked information for the next unit time frame,
If linked information for the next unit time frame exists, the linked information for the next time frame is acquired as response information,
If there is no linked information for the next unit time frame, the linked information continuation request handling means that sets the second flag information as true and sets the response information;
A program information table for recording a set of program identifier, broadcast station identification information, broadcast start time, broadcast end time, and information indicating presence / absence of linked information for each program to be broadcast, and further subdividing the time zone of the program to be broadcast Program information database including a unit time frame identifier, a program identifier, an elapsed time after the start of broadcasting, and an interlocking information table that records information of interlocking information contents as a set for each unit time frame that is a unit Is a linked information distribution server device.

In the first embodiment, since the link information start request always responds to link information data of two consecutive unit time frames (if any), the TV viewer's information terminal made the first link information request. After that, it is only necessary to issue a link information continuation request at the timing when the link information changes at the joint of the unit time frames, so that the operation of the application program for acquiring the link information that operates on the information terminal of the TV viewer can be simplified. The linked information content information includes text information related to linked information of the unit time frame, a representative URL corresponding to the unit time frame, that is, a URL of an Internet site as linked information of the unit time frame, and the like. is there.

 In the linked information distribution server device of the first embodiment, it is desirable that the current time is a time given by the linked information distribution server device when the linked information start request arrives at the linked information distribution server device. This is because, due to network delay, the timing for starting the process of extracting linked information in the linked information distribution server apparatus may cause a delay that cannot be ignored from the time requested by the information terminal of the TV viewer.

  In addition, the link information initial request handling means is broadcast in the next time zone of the program on the same channel when the link information of the next time zone of the unit time frame based on the current time does not exist in the program. If the link information exists in the program, the link information of the first unit time frame is extracted as the link information of the next unit time frame and becomes part of the response information. If the link information does not exist, the second flag information is set to true. As part of the response information. This is because when the viewer continues to view the channel without changing the channel, it is more convenient to continue the operation of the application program for acquiring the linked information that operates on the information terminal of the TV viewer.

  Similar modifications can be made to the interlocking information continuation request handling means.

A second embodiment, which is a modification of the first invention of the present application for solving the above-described problem, is a linked information distribution server device that responds to a request from a user terminal via a network.
A transmission / reception means for accepting a request from a user terminal via a network and returning response information according to the request;
A control means for calling a means for preparing response information in response to a request received by the transmission / reception means;
For linked information start request including broadcast station identification information,
The broadcast program corresponding to the current time and the broadcasting station is specified, the program information related to the program is extracted, and if the link information does not exist in the program, the first flag information is set as true as response information,
If there is linked information in the program, linked information initial request handling means that extracts linked information in a unit time frame corresponding to the current time and uses it as response information;
For linked information continuation requests that request linked information for the next unit time frame,
If there is link information for the next unit time frame, the link information for the next time frame is acquired and used as response information. If there is no link information for the next unit time frame, the second flag information is set. A response information continuation request handling means that makes response information as true,
A program information table for recording a set of program identifier, broadcast station identification information, broadcast start time, broadcast end time, and information indicating presence / absence of linked information for each program to be broadcast, and further subdividing the time zone of the program to be broadcast Program information database including a unit time frame identifier, a program identifier, an elapsed time after the start of broadcasting, and an interlocking information table that records information of interlocking information contents as a set for each unit time frame that is a unit Is a linked information distribution server device.

 The server device may provide information related to the program in synchronization with the progress of the program to the information terminal of the TV viewer who issues the linked information continuation request at an appropriate timing after making the linked information start request. it can.

In the linked information distribution server device, the current time is preferably a time given by the linked information distribution server device when the linked information start request arrives at the linked information distribution server device. This is because, due to network delay, the timing for starting the process of extracting linked information in the linked information distribution server apparatus may cause a delay that cannot be ignored from the time requested by the information terminal of the TV viewer.

The linked information continuation request handling means, if linked information for the next unit time frame does not exist in the program, if linked information exists in a program broadcast in the next time zone of the program on the same channel. For example, the link information of the first unit time frame may be acquired and used as response information, and if it does not exist, the second flag information may be set as true and used as response information. This is because when the viewer continues to view the channel without changing the channel, it is more convenient to continue the operation of the application program for acquiring the linked information that operates on the information terminal of the TV viewer.

In order to solve the above problems, the invention according to the first embodiment of the second invention of the present application,
A computer program for operating a terminal device having a network communication function for transmitting a request to a linked information distribution server device according to the first embodiment of the first invention through a network and receiving response information, the CPU of the terminal device By being interpreted and executed,
A function to acquire broadcast station identification information;
Storage means for storing the URL of the link information distribution server device;
A function of transmitting a link information start request including broadcast station identification information in the URL;
A function of sending a link information continuation request to the URL within a predetermined time based on the end of the unit time frame of the link information currently displayed;
Storage means for temporarily storing response information from the link information distribution server device for the link information start request and link information continuation request;
Linked information display function for rendering linked information screen based on linked information of unit time frame included in response information of linked information start request, or linked information of unit time frame included in response information of linked information continuation request,
When the response information of the interlocking information start request includes the first flag information as true, a function for automatically terminating the program immediately;
When the response information of the link information continuation request includes the second flag information as true, the link information includes a function for automatically terminating the program when the unit time frame of the link information displayed at that time ends. A computer program including instructions for operating as a display terminal.

In order to solve the above problems, the invention according to the second embodiment of the second invention of the present application,
A computer program for operating a terminal device having a network communication function for transmitting a request to a linked information distribution server device according to a second embodiment of the first invention through a network and receiving response information, the CPU of the terminal device By being interpreted and executed,
A function to acquire broadcast station identification information;
Storage means for storing the URL of the link information distribution server device;
A function of transmitting a link information start request including broadcast station identification information in the URL;
A function to send a linked information continuation request for requesting linked information for the next unit time frame of the currently displayed linked information unit time frame,
Storage means for temporarily storing response information from the link information distribution server device for the link information start request and link information continuation request;
Linked information display function for rendering linked information screen based on linked information of unit time frame included in response information of linked information start request, or linked information of unit time frame included in response information of linked information continuation request,
When the response information of the interlocking information start request includes the first flag information as true, a function for automatically terminating the program immediately;
When the response information of the link information continuation request includes the second flag information as true, the link information includes a function for automatically terminating the program when the unit time frame of the link information displayed at that time ends. A computer program including instructions for operating as a display terminal.

In order to solve the above problem, another modified invention of the second invention of the present application is:
A terminal-type computer program for operating a terminal device having a network communication function for transmitting a request through a network and receiving response information to the interlocking information distribution server device according to the first embodiment of the first invention. By being interpreted and executed by the CPU of
A function to put itself in a dormant state as an initial state when activated by the OS;
A function to acquire broadcast station identification information;
Storage means for storing the URL of the interlocking information distribution server device;
A function of transmitting a linked information start request including broadcast station identification information in the URL when the broadcast station identification information is acquired;
A function of transmitting a link information start request including broadcast station identification information in the URL when the next program start time comes in the pause state;
A function of sending a link information continuation request to the URL within a predetermined time based on the end of the unit time frame of the link information currently displayed;
Storage means for temporarily storing response information from the link information distribution server device for the link information start request and link information continuation request;
Linked information display function for rendering linked information screen based on linked information of unit time frame included in response information of linked information start request, or linked information of unit time frame included in response information of linked information continuation request,
When the response information of the interlocking information start request includes the first flag information as true, a function to immediately put the program in a dormant state;
When the response information of the link information continuation request includes the second flag information as true, the link is provided with a function to put the program in a dormant state when the unit time frame of the link information displayed at that time ends. A computer program including instructions that operate as an information display terminal.

A third invention of the present application for solving the above-described problem is a terminal device including a display unit, a storage unit, and a control unit that interprets and executes a program, and includes the computer program according to the second invention of the present application. It is a terminal device.

According to the server device of the first invention of the present application, the information linked to the TV program is synchronized with the progress of the TV program on the information terminal of the TV viewer equipped with the computer program of the second invention. Can be displayed. At this time, the TV receiver need not be connected to the network. TV programs are not limited to one-segment broadcasting. The linkage information is not limited to BML content. The viewer does not need to take the trouble of photographing the QR code (trademark) displayed on the TV screen with the camera of the information terminal. Therefore, as long as the link information is prepared for the TV program, the viewer can easily acquire the link information of the program on the information terminal screen owned by the viewer. Moreover, Internet resources can be used for linked information.

It is a block diagram which shows the whole structure of the interlocking | linkage information delivery system in 1st Embodiment. 3 is a functional block diagram of a linkage information distribution server 100. FIG. 2 is a hardware configuration diagram of an information terminal 20. FIG. 2 is a block diagram of a hardware configuration of a linkage information distribution server 100. FIG. It is a figure explaining the broadcast station table. It is explanatory drawing of the program information table 190 of an interlocking information database (interlocking information DB). It is a figure explaining the interlocking | linkage information table 180. FIG. It is a figure explaining the interlocking | linkage information detail table 170. FIG. It is a figure explaining the flow of operation of a viewer. FIG. 10 is a sequence diagram illustrating exchange of linked information transmission / reception between the viewer information terminal 20 on which the linked information acquisition application is activated and information on the linked information distribution server 100. 5 is a flowchart for explaining in detail the first linked information acquisition processing in the linked information distribution server 100. 5 is a flowchart for explaining in detail the next linked information acquisition process in linked information distribution server 100. It is a figure explaining the mode of the key frame which an information terminal receives while the program which has interlocking information is broadcast. It is a figure explaining the process in the case of straddling a program with the same channel. It is a figure explaining the operation | movement when the next program does not have interlocking | linkage information in the case of straddling a program with the same channel. It is a figure explaining operation | movement in case a broadcast program when a linked information acquisition application is started consists of only one key frame. It is a chart explaining the transmission timing of an interlocking information continuation request. It is a flowchart explaining operation | movement of a cooperation information acquisition application. It is a flowchart explaining the operation | movement of the first interlocking | linkage information acquisition process in deformation | transformation embodiment.

(First Embodiment) FIG. 1 is an overall configuration diagram for explaining a first embodiment of a program linkage information providing system of the present invention. Reference numeral 50 denotes a digital broadcast receiver (hereinafter abbreviated as TV) installed at home. Reference numeral 20 denotes an information terminal operated by a TV program viewer. Reference numeral 100 denotes a server device that distributes linkage information. The information terminal 20 and the interlocking information distribution server 100 are logically connected by the network 2 to distribute / receive the interlocking information. The network 2 is an IP network composed of a dedicated line, a 3G line network, a public line network, etc., typically the Internet. Reference numeral 200 denotes a customer destination server device. The user (TV viewer) accesses the customer destination server apparatus 200 by selecting a link included in the link information screen displayed on the information terminal 20. Although a number of server apparatuses 200 exist on the network 2, only one is shown in FIG.

 The information terminal 20 is standardized as a wireless communication function or an IEEE 802.11 series for performing wireless communication with a base station (not shown) constituting the mobile phone network 8 by a communication method compliant with the IMT-2000 standard. A wireless LAN function for communicating with a wireless LAN access point (not shown) and a network communication function for connecting to a host computer on the network and exchanging messages and packets in conformity with IP (Internet Protocol). . The information terminal 20 is, for example, a mobile phone, a smartphone, or a tablet, and includes a web browser and a dedicated program described later.

FIG. 4 is a block diagram illustrating an example of a hardware configuration of the interlocking information distribution server device 100. In the interlocking information distribution server device 100, a control unit 101, a local storage unit 102, a peripheral device I / F unit 103, an input unit 104, a display unit 105, and a communication unit 106 are connected via a bus 109. The control unit 101 controls the entire apparatus with a CPU (Central Processing Unit) and executes a program. The storage unit 102 holds data and programs processed by the control unit 101. The peripheral device I / F unit 103 exchanges data with an external storage medium such as a hard disk in which a database and a program are recorded. The input unit 104 is an input device such as a keyboard and a mouse, and inputs operation information such as a keyboard and a mouse. The display unit 105 is a display device such as a display. The communication unit 106 communicates with other computers via a network.

  FIG. 2 is a functional block diagram illustrating a functional configuration of the interlocking information distribution server 100. The interlocking information distribution server 100 includes a transmission / reception unit 110, a control unit 120, an initial request handling unit 130, a continuation request handling unit 140, and a program information database 160. The transmission / reception means 110 accepts a request message from the user terminal 20 via the network 2 and delivers it to the control means 120, and returns response information delivered from the control means 120 to the request source via the network 2. The control unit 120 calls an appropriate processing unit such as the initial request handling unit 130 or the continuous request handling unit 140 according to the content of the request message delivered from the transmission / reception unit 120, receives the processing result, and sends the processing result to the transmission / reception unit 120. return. The first request handling unit 130 and the continuation request handling unit 140 refer to (inquire) the program information database in response to the linked information start request or the next linked information request, and acquire unit time frame linked information related to the specified time. To do.

  The functional means shown in FIG. 2 and the hardware units shown in FIG. 4 are related to each other. The storage unit 102 of the interlocking information distribution server 100 stores the program code of the OS of the computer used as the interlocking information distribution server 100 and HTTP. In addition to the WEB server software (the main part of the transmission / reception means 110) that receives a request from the information terminal 20 used by the viewer according to the protocol and returns a response to the request, the computer program module (the main part of the control means 120) that controls the process transition Part) and a computer program module (main part of the first request handling means 130) that creates response information for the first linked information request and returns the result, and provides response information for the continued linked information request after the first time. A computer program that creates and returns the results Execution format programs (main parts of the continuation request handling means 140) are stored, and these program codes are read by the control unit 101 to drive and control the hardware parts of the interlocking information distribution server 100. It functions as each functional means 110, 120, 130, 140, 150.

  FIG. 3 is a hardware configuration diagram of the information terminal 20. A processor unit 11 controls the information terminal device. This is an integrated circuit in which a central processing circuit that reads and interprets a control program, a RAM (random access memory) that holds temporary data, a sound processing circuit that connects a speaker 21, a microphone 22, and the like are integrated. Reference numeral 12 denotes a ROM (Read Only Memory). The program code of the OS of the portable information device is stored. Reference numeral 13 denotes a display unit. It is a small liquid crystal display device. Reference numeral 14 denotes a touch panel unit. A contact detection element (not shown) on the two-dimensional array is mounted integrally with the display unit, for example, by being inserted into the surface portion of the display unit 13. Reference numeral 15 denotes a display control unit. A video RAM that temporarily stores display data to be displayed on the display unit 13 is included. The display unit 13 is controlled by receiving a control signal and display data through the bus 19 and displaying an image. In addition, the display control unit 15 scans the contact detection element to detect contact of a finger on the display unit 13 of the operator and notifies the processor unit 11 that an input event has occurred along with the contact position information. Reference numeral 16 denotes a nonvolatile memory such as a flash memory. Stores application programs and the like. Reference numeral 17 denotes a communication function unit. A voice call, packet communication, and / or a wireless LAN function standardized as an IEEE 802.11 series with a wireless LAN access point is provided between a base station and a CDMA2000 or W-CDMA system. Reference numeral 18 denotes a SIM card (Subscriber Identity Module Card). The processor unit 11, ROM 12, display control unit 15, nonvolatile memory 16, and communication function unit 17 are connected by a bus 19.

In the nonvolatile memory 16 of the information terminal 20, a program code of an application program (linkage information acquisition application) that acquires link information for each unit time frame, which is original information for displaying the TV broadcast link information on the display unit 13, from the network. Is stored.

  A procedure for using the linked information acquisition application will be described. The linked information acquisition application is classified into a resident type that maintains a state in which the information terminal 20 is always activated while the information terminal 20 is activated, and a non-resident type that needs to be activated by a user as needed to operate. Although there is no essential difference between the two, in order to facilitate the explanation, first, it will be described as a non-resident interlocking information acquisition application.

  FIG. 9 is a diagram for explaining the flow of operations by the viewer. When the TV is turned on (step S10), the viewer selects a TV channel (step S12), and the viewer who is interested in the program broadcast on the selected channel operates the information terminal 20. When the linked information acquisition application is activated (step S14), the viewer inputs the currently tuned TV channel number on the input screen of the application that appears on the display unit 13 of the information terminal 20 (step S16). In the processing within the acquisition application, the remote control channel number → broadcast station identification information is converted, and a linked information start request (described later) is made. The viewer browses the program link information acquired by the link information acquisition application and rendered on the display unit 13 of the information terminal 20 (step S18). If the viewer does not change the channel, at least until the program ends. The link information acquisition application continues to display the program link information, but when the viewer switches the channel (step S12), the display of the information terminal 20 remains unchanged before the channel switch, so the link of the broadcast program of the switched channel is performed. When viewing the information, the viewer once quits and restarts the linked information acquisition application, and enters the currently tuned TV channel number on the input screen of the application that appears on the display unit 13 of the information terminal 20. (Step S16).

  In the preferred embodiment, the conversion of the remote control channel number (remote control number) → broadcast station identification information is performed with reference to the correspondence table of remote control channel number ← → broadcast station identification information for each region. The linked information acquisition application stores the above correspondence table for every region, and when the viewer acquires (installs) the linked information acquisition application, the viewer actually uses it by specifying his / her viewing area. Set the correspondence table. When a new broadcasting station is opened in a certain area, the correspondence table for that area must be changed. In one embodiment, this may be done in the form of a version upgrade of the linked information acquisition application. it can. Of course, other methods may be used. Once the viewing area is set, the remote control number and broadcast station identification information correspond one-to-one according to the above correspondence table, so even if the viewer actually enters the remote control number, This is substantially the same as receiving broadcast station identification information. Accordingly, in the following description, the input of the remote control number and the input of the broadcast station identification information are regarded as being the same unless otherwise distinguished.

When the TV 50 includes a communication adapter corresponding to the direct interconnection mode of the wireless LAN standard standardized as IEEE 802.11a / b / n, peer-to-peer ( P2P) wireless communication can be established. In this case, by appropriately programming the link information acquisition application, the process of step S16 is established at the timing instructed by the TV viewer to establish P2P communication with the TV 50, and the TV 50 is currently tuned. It can also be realized by inquiring about the broadcasting station.

  In addition to the case where the operator explicitly ends the program, the activated non-resident linked information acquisition application is automatically terminated when entering the time zone of the next program without linked information. In another embodiment, the program is automatically terminated when the program when the application is activated is terminated.

  Next, the program information database 160 will be described. The program information database 160 referred to in the present invention includes four tables: a broadcasting station table 400, a program information table 190, a linkage information table 180, and a linkage information detail table 170.

FIG. 5 is a diagram for explaining the broadcast station table 400. This table shows one record per line. One record includes items of a broadcast station UID 401, a broadcast station ID 402, and a broadcast station name 403. The broadcast station UID 401 is broadcast station identification information.
FIG. 6 is a diagram for explaining the program information table 190. This table shows one record per line. One record corresponds to one program, and records information about one program to be broadcast. One record includes a program UID 191, a program ID 192, a broadcast station UID 193, a broadcast start time 194, a broadcast end time 195, a program name 196, and a linkage information presence / absence flag 197. If the logical value of the linkage information presence / absence flag 197 is true, the program has linkage information. If the link information presence / absence flag 197 is false, the program has no link information.

FIG. 7 is a diagram for explaining the linkage information table 180. This table represents information on one or more unit time frames (key frames) constituting the time of one program. One line is one record and corresponds to one key frame. One key frame includes a key frame UID 181, a key frame ID 182, a program UID, the position of the time zone of the key frame within the program (elapsed time when the key frame starts after the start of broadcasting) 184, representative customer The destination URL 185 is included.

FIG. 8A is a diagram for explaining the interlocking information detail table 170. This table represents information of each of one or more interlocking detailed information constituting one unit time frame (key frame). In the figure, one line is one record and corresponds to one piece of interlocking detailed information. One link detailed information includes a key frame UID 171, a link information detail ID 172, a URL 173 corresponding to the detailed information, a time zone position of the link information details in the link information (from the top of the key frame, the link information details Elapsed time when time zone starts) 174.

In the following description, when “linked information” for a specific unit time frame (key frame) is referred to, the customer destination URL 185, text information 186 of one record identified by the key frame UID in the linked information table 180, In addition, all the interlocking detailed information specified by the same key frame UID in the interlocking information detail table 170 (that is, the URL 173, the time zone position 174 of the interlocking information details in the interlocking information) is pointed out.

FIG. 10 is a sequence diagram for explaining the exchange of linked information transmission / reception between the viewer information terminal 20 on which the linked information acquisition application is activated and the information of the linked information distribution server 100. The linked information transmission / reception processing operation will be described with reference to FIG.

  The right side of FIG. 10 shows the process of the interlocking information acquisition application. The left side shows processing of the interlocking information distribution server 100 that operates in response to a request from a viewer terminal on which the interlocking information acquisition application operates. First, when the linked information acquisition application is activated by the viewer's operation on the information terminal 20 (S114), the linked information acquisition application displays an input field on the screen and inputs the channel number selected by the viewer. Encourage Upon receiving the input channel number, the link information acquisition application acquires broadcast station identification information with reference to a correspondence table of remote control channel number → broadcast station identification information set in the application in advance (S116). Then, the interlocking information start request including the broadcast station identification information is transmitted to the interlocking information distribution server 100 (S117).

The link information distribution server 100 that has received the link information start request drives the first request response unit 130 to perform the first link information acquisition process (S200). Details of this processing will be described later. As a result of this processing, linked information of the unit time frame corresponding to the first request (linked information of the unit time frame corresponding to the application activation time and linked information of the next time frame) is obtained. The link information distribution server 100 returns these pieces of information to the information terminal 20 as a response to the link information start request (S201).

When the viewer's information terminal 20 receives the link information of the unit time frame corresponding to the first request, the viewer information terminal 20 linked information of the unit time frame (usually the link information of the unit time frame corresponding to the application activation time and the next The time frame link information) is temporarily stored in the internal database (S120), and the TV program link information screen based on this data is rendered. As a result, an interlocking information screen synchronized with the program progress on the TV screen is displayed on the information terminal 20 (S130). Although this screen depends on the contents of the interlocking information and the specifications of the rendering processing function of the interlocking information acquisition application, the result obtained by accessing a server other than the interlocking information distribution server 100 (referred to as the customer destination server 200) is obtained. It is also possible to display the information including the selected resource.

If time elapses while the link information screen is displayed on the information terminal 20, the first unit time frame ends. Then, the link information acquisition application renders the link information screen based on the link information of the next time frame already acquired in the internal database and displays it on the display unit 13. Furthermore, a request (continuation request) for the next unit information is issued to the interlocking information distribution server 100 within a predetermined time (S131).

The linked information distribution server 100 that has received the request for the next unit information drives the continuous request handling means 140 to perform the next linked information acquisition process (S240). Details of this processing will be described later. As a result of this process, linked information of the unit time frame corresponding to the continuation request (time frame linked information immediately after the unit time frame corresponding to the current time) is obtained. The link information distribution server 100 returns these pieces of information to the information terminal 20 as a response to the link information continuation request (S241). The information terminal 20 that has received the response to the link information continuation request returns to step S120 and repeats the update of the internal database and the subsequent screen display (S130) based on the link information. The linked information distribution server side is also in a waiting state for a request for the next unit information, and repeats step S240 when a request for the next unit information is received.

In this way, information linked to the program continues to be displayed on the information terminal 20 at least until the program being viewed ends. In response to the link information start request (S117), the program may not have link information prepared in the first place. In this case (not shown in FIG. 10), the server 100 returns a response with the “no linkage flag” turned ON in the response information (S201). The linked information acquisition application that has received the “no linked flag” ON is automatically terminated immediately. Further, in response to the request for the next unit information (S131), the server 100 responds with the “next absence flag” as to whether or not the link information of the next unit time frame exists, and details of this case will be described in detail later. .

FIG. 11 is a flowchart for explaining in detail the first linked information acquisition process (step S200) in the linked information distribution server 100. Hereinafter, the first link information acquisition process will be described in detail with reference to FIG.

When receiving the link information start request, the transmission / reception means 110 takes out information for identifying the type of request and the content of the request and passes them to the control means 120. When the control unit 120 finds that the request is a linked information start request from the information for identifying the type of request, the control unit 120 transfers control to the first request response unit. At this time, the time of the internal clock of the interlocking information distribution server 100 is acquired as the current time, and the current time and the broadcast station identification information that is the content of the request are delivered to the first request response means.

The first request handling means 130 specifies a program whose broadcast start time: broadcast end time includes the current time from the program information table 190 using the broadcast station identification information and the current time as a key, and extracts a record of the program (S202). ). For example, according to the example of FIG. 6, if the current time is 13:06 and the broadcast station identification information is 50001, the program “Studio Lake” is specified, and the record of the program UID: 141305001 is held. If the broadcast station identification information is 50003, the program “consult a doctor” is specified, and a record of the program UID: 141305002 is held. One record includes a linkage information flag 197 indicating the presence or absence of linkage information. The value of this flag is inspected (S204). If the value of the flag is not true, it means that there is no linkage information in the program, so the no linkage flag is set to ON (true) (S208), and the process proceeds to step S218. In the example of FIG. 6, the program “Studio Lake” has linked information, and the program “Consult a doctor” has no linked information.

On the other hand, if the interlocking information flag 197 is true, processing when there is interlocking information in the program will be performed. First, the elapsed time from the start of broadcasting of the program at this time is calculated (S206). The elapsed time after the start of broadcasting is obtained by taking the difference (in seconds) between the current time and the value of the start time recorded in the broadcast start time item of the record of the program.

Next, the linkage information table 180 is searched using the program UID and the elapsed time after the start of broadcasting as keys, and the key frame corresponding to the elapsed time after the start of broadcasting and the key frame of the next time frame are respectively set to the current key frame, the next (S210). For example, if the elapsed time after the start of broadcasting is 180 seconds, in the example of FIG. 7, the key frame UID: 20111141305001 is specified as the current key frame, and the key frame UID: 20111141305002 is specified as the next key frame. At this time, if the elapsed time after the start of broadcasting is 5500 seconds, the key frame UID: 20111141305005 is specified as the current key frame as the current key frame, but the next key frame exists because this frame is the last key frame of the program. do not do. In that case (Y in S212), the next none flag (second flag) is set to true (ON) (S214). Thus, since the IDs of the current key frame and the next key frame are specified, the link information detail table 170 is searched using the specified key frame ID as a key, and all the link detail records having the corresponding key frame ID are extracted. (S216), the process proceeds to step S218. In step S218, response information for the interlock start request is created based on the data extracted in step S216. The control unit 120 arranges the format of the response message and instructs the transmission / reception unit 110 to return it to the request source.

FIG. 12 is a flowchart for explaining in detail the next interlocking information acquisition process (step S240) in the interlocking information distribution server 100. Hereinafter, the next interlocking information acquisition process will be described in detail with reference to FIG.

When receiving the interlocking information continuation request, the transmission / reception unit 110 takes out information for identifying the type of request and the content of the request and passes them to the control unit 120. When the control unit 120 finds that the request is a linked information continuation request from the information for identifying the type of request, the control unit 120 transfers control to the continuation request handling unit 140. At this time, the last key frame UID acquired on the information terminal 20 side, which is the content of the request, is also delivered.
The continuation request handling unit 140 specifies a key frame corresponding to the next unit time frame of the key frame UID passed as an argument with reference to the linkage information table 180 (S242). For example, in FIG. 7, if the key frame UID passed as an argument is 201111413050002, the elapsed time after the start of broadcasting is 600 seconds to 1199 seconds, so that the next unit time frame starts from 1200 seconds. Thus, the key frame corresponding to the next unit time frame is specified as UID 201111413050003. In this case, since the next key frame exists, the process proceeds to step S252. In step S252, all the related interlocking information detailed data is extracted from the interlocking information detail table 170 using the key frame UID specified in step S242 as a key.

  On the other hand, in FIG. 7, if the key frame UID passed as an argument is 20111143050005, this key frame is the last key frame of the program UID 1413050001, and therefore there is no key frame corresponding to the next unit time frame (in S244). N branch). At this time, the program UID is obtained from the key frame UID passed as an argument, and the program (next program) broadcast next to the same channel (same broadcast station) is specified (S246). Then, the linkage information flag of the next program is checked (S247). If the linkage information flag is true, the linkage information table 180 is searched using the program UID of the next program as a key, and the detailed information of the first key frame of the next program is extracted from the linkage information detail table 170 (S250). Thereafter, the process proceeds to S254. On the other hand, if the interlock flag of the next program is false, the next none flag (second flag) is set to true and the process proceeds to S254.

  For example, if the key frame UID is 20111143050005, this key frame is a key frame of the program UID 1413050001 from the linkage information table 180, and therefore, with reference to the program information table 190, the same broadcast station (UID: 50001) as the program UID 1413050001. It can be seen that the next broadcasted program is the program UID: 1412300006 “Journey with Pets”. Since the link information flag is true for this program, that is, link information exists, the value of the post-broadcast elapsed time 184 item in the key frame data having the program UID: 1412300006 is zero (sec) from the link information table 180. Identify the keyframe that is. The key frame detailed data having the key frame UID is extracted from the interlocking information detailed table 170.

In step S254, response information for the linked continuation request is created based on the data extracted in any of steps S252, S250, or S248 or the set flag. The control unit 120 arranges the format of the response message and instructs the transmission / reception unit 110 to return it to the request source.

FIG. 13 is a diagram for explaining a state of key frames received by the information terminal while a program having linkage information is being broadcast. The time axes of the program, the link information, and the terminal are indicated by three parallel straight lines. Point A on the time axis of the program indicates the application activation time (more precisely, the time when the link information start request S117 is received by the server). As shown in FIG. 13, the first two pieces of key frame data are transmitted and received by the information terminal by the first linked information request. The link information acquisition application issues a request for requesting the next key frame at the time point (A1) when the time frame of the first key frame ends. This request specifies the last key frame UID (in this case, UID = 2) of the key frames acquired by the linked information acquisition application. The link information providing server 100 returns detailed data of the next key frame UID = 3 of UID = 2 to the information terminal. In this way, the interlocking information is always prepared on the information terminal 20 side by one key frame ahead.

Actually, when the next interlocking information request to the interlocking information providing server 100 is requested from the information terminals 20 of a large number of viewers at every key frame break (A1, A2,...), FIG. As shown in FIG. 17, the traffic on the network is congested. To avoid this, as shown in FIG. 17A, each terminal has a fixed time range after the end of the time frame of one key frame. It is necessary to distribute the timing for requesting the interlock information of the next key frame. For this purpose, the linked information acquisition application uses a uniform random number to appropriately shift the timing for requesting linked information of the next key frame from the time of the break of the key frame. FIG. 17C shows a dispersed image.

FIG. 14 is a diagram for explaining processing when a program spans the same channel. This figure shows a case where the next program also has linkage information. At the timing Alast when switching to the time frame of the last key frame, the interlocking information acquisition application issues the next key frame request (S131). However, since the data of the last key frame of the program being broadcast has already been received at this time, there is no next key frame. The continuation request handling unit 140 extracts the first key frame (key frame UID = B1) of the next program from the interlocking information database 160 by the processing of steps S244 to S250 already described, and uses this as a response. The linked information acquisition application receives this response and updates the internal database. Thereafter, even if the linked information acquisition application is switched to the next program, the linked information is continuously displayed unless the viewer performs an explicit end operation.

FIG. 15 is a diagram for explaining the operation in the case where the next program does not have interlocking information when straddling a program with the same channel. At the timing Alast when switching to the time frame of the last key frame, the interlocking information acquisition application issues the next key frame request (S131). However, since the data of the last key frame of the program being broadcast has already been received at this time, there is no next key frame. The continuation request handling means 140 sets the next none flag as a true value and sets this as a response, assuming that the next program does not have linkage information by the processing of steps S244 to S248 already described. The linked information acquisition application has no next flag =. TRUE. Is automatically terminated when the last key frame of the current program ends.

FIG. 16 is a diagram for explaining the operation in the case where the broadcast program when the linked information acquisition application is activated is composed of only one key frame. Point A on the time axis of the program indicates the application activation time (more precisely, the time when the link information start request S117 is received by the server). The viewer started the linked information acquisition application for a while after the program A started broadcasting. The first request handling means 130 tries to acquire the first key frame and the next key frame of the program A from the linkage information database 160, but since the second key frame does not exist in the program A, the steps already described Through the processing of S212 to S214, the next non-existing flag is set to a true value together with the detailed data of the first key frame, and this is set as a response. The linked information acquisition application automatically ends when the first and last key frame ends.

By the way, in the case of FIG. 16 (when the broadcast program when activated is composed of only one key frame), another operation may be considered. In the above description, the next none flag is responded with a true value regardless of whether the program B broadcast next to the program A has linkage information or not. However, in step S214, the program B When the UID is specified and the program B has linkage information, the first key frame data is extracted as the next key frame data, and when the program B does not have the linkage information, the next flag is set to a true value. These may be used as responses. In order to realize such an operation, S214 (FIG. 11) may be replaced with a series of processes (FIG. 12) of S246, S247, S248, and S250.
On the other hand, S214 of the first link information acquisition process (FIG. 11) is left as it is, and the next link information acquisition is performed as a flow that simply replaces S246, S247, S248, and S250 of FIG. 12 with S248. You may comprise a process (step S240). In this case, the linked information acquisition application always ends when one program ends.

FIG. 18 is a flowchart for explaining the operation of the interlocking information acquisition application operating on the information terminal 20. The processing operation of the interlocking information acquisition application will be described below according to this flowchart.
When the linked information acquisition application is activated, an input field is displayed on the screen of the display unit 13 of the information terminal 20 to prompt the viewer to input the selected channel number. When the input channel number is received, the link information acquisition application acquires broadcast station identification information with reference to a correspondence table of remote control channel number → broadcast station identification information set in the application in advance (S302). Then, a link information start request including the broadcast station identification information is transmitted to link information distribution server 100 (S303). Note that the processing in step S302 may be obtained by establishing P2P communication with the TV 50 at the timing instructed by the TV viewer and inquiring the TV 50 that is currently tuned to the broadcasting station.
A response to the link information start request from the link information distribution server 100 is received, and the content of the response is temporarily recorded in a predetermined area of the nonvolatile memory 16 (S309).

The response also includes two flags, a no linkage flag and a next none flag. These flags normally take a false logical value, but may take a true logical value depending on conditions. The value of the no linkage flag included in the response content is tested (S312). If the logical value is true, the currently broadcast program has no link information, and the link information acquisition application itself automatically ends automatically. If it is a false logical value, the response information includes the interlocking information detailed data. The link information acquisition application records the detailed information of the key frame corresponding to the current time in the form of a list of customer destination URLs for each time interval as shown in FIG. 8B in a local database in the application. Each row in FIG. 8B corresponds to one of the interlocking information detailed time frames obtained by further subdividing one key frame shown in FIG. In FIG. 8B, the first three lines correspond to the first three linked information detailed time frames in FIG. If there is detailed information on the next key frame, the next key frame is further subdivided into the local database in the application as a list of destination URLs for each break of the linked information detailed time frame. Is recorded as key frame data (S315). (However, this is only a description of one embodiment of the present invention. There is a key frame that does not have a detailed time frame for interlocking information obtained by further subdividing one key frame in FIG. (It is also possible that all key frames do not have the interlocking information detailed time frame.)

Next, the link information acquisition application renders the program link information display screen by executing a pre-programmed screen generation command based on the list of customer destination URLs for each time interval. In a typical embodiment, an Internet resource (an image file, a text file, a moving image file, etc.) is accessed by accessing a customer destination URL corresponding to each time interval shown in FIG. 8 based on the time of the internal clock indicated by the information terminal 20. Generate as a single HTML screen. However, the linked screen rendering is not limited to this. For example, the interlocking information detail table 180 has text information (186) for each key frame identified by the key frame ID, and the interlocking information acquisition application stores the representative customer destination URL of the key frame included in the received response. A link information screen for a time frame of one key frame may be generated from (185) and the text information (186). In this case, it is not necessary to record the interlocking detail table for the key frame of the key frame UID.

The generated link information screen is displayed on the display screen 13 of the information terminal 20 operated by the viewer. If a hyperlink is embedded in this screen (of course, this hyperlink is based on the corresponding text information (186) of the key frame), the viewer can follow the link to surf the internet or It is also possible to go to the purchase site.
When the time frame of the key frame elapses (Y in S321), the interlocking information acquisition application checks the contents temporarily recorded in step S309 and checks the value of the next non-existing flag (S324). If the logical value of the next none flag is true, the process automatically ends here. Otherwise (false in S324), the link information acquisition application prepares and transmits the next key frame request (S327). Thereafter, the process returns to step S309 and is repeated.

(Modified Embodiment)
In the first embodiment, as described with reference to FIG. 13, two key frame data are transmitted as key frame information for the first time in response to the interlocking information start request (S117). The present invention is not necessarily limited to this. A linked information server device 100 according to a modified embodiment of the present invention will be described below.

In one modified embodiment, key frame data for one case is extracted and returned in response to the link information start request (S117) as in the link information continuation request. As a result, the process on the linked information providing server side is simplified. However, if the next key frame is requested after the time frame of the first key frame is completed, the display of the linked information is delayed. Before the time frame for the first key frame is completed on the side, a request for a key frame for the next time frame is made. Typically, a response corresponding to the time specified in the first request is received, and the linked information continuation request may be issued immediately when the key frame UID of the key frame is known. Since one key frame is set with a time width of several minutes to 10 minutes, there is no substantial problem even if the interlocking information acquisition application is programmed in this way.

FIG. 19 is a flowchart of the first link information acquisition process in this modified embodiment. The same processing steps as those in FIG. 11 are given the same numbers. What is different from FIG. 11 is an alternative step S211 of step S210 and an alternative step S217 of step S216. In step S211, the key frame to be identified need only correspond to the current time (the elapsed time after the start of broadcasting recalculated in step S206) (for convenience, it is simply indicated as “next frame”). . In step S217, only the key frame data for the one frame is extracted from the linkage information database 160. The next interlocking information acquisition process shown in FIG. 12 is exactly the same in this modified embodiment.

In the flow of FIG. 19, since the process of the next frame of FIG. 12 is executed in S217, the linked information acquisition application does not end if the next program has linked information even if one program ends. However, the following linked information acquisition process (step S240) may be configured as a flow in which the series of processes of S246, S247, S248, and S250 in FIG. 12 is simply replaced with S248. In this case, the linked information acquisition application always ends when one program ends.

  The linked information acquisition application has been described as a normal application program that requires the viewer to explicitly start, but is automatically started when the information terminal 20 is turned on and the OS is started, and the TV viewer inputs channel information. Then, it may be realized as a resident application that becomes active. In this case, when the no-interlock flag “true” and the next-next flag “true” are received, the process does not stop and disappear at the end of the unit time frame that is currently displayed, but enters the sleep state at each timing. Become. In the case of a resident application, the time when the next program with linked information is started can be checked and stored in the storage means immediately before going into the sleep state. It is also possible to operate so as to be voluntarily activated and to acquire interlocking information. However, when the TV viewer changes the channel, the operation becomes useless.

DESCRIPTION OF SYMBOLS 1 Linked information distribution system 2 Network 20 Information terminal 50 Digital broadcast receiver 100 Linked information distribution server apparatus 200 Customer destination server 101 Control unit 102 Storage unit 103 Peripheral device I / F unit 104 Input unit 105 Display unit 106 Communication unit 110 Transmission / reception Means 120 Control means 130 Initial request handling means 140 Continuing request handling means 160 Interlocking information database 400 Broadcasting station table 170 Interlocking information detail table 180 Interlocking information table 190 Program information table

Claims (11)

A linked information distribution server device that responds to a request from a user terminal via a network,
A transmission / reception means for accepting a request from a user terminal via a network and returning response information according to the request;
A control means for calling a means for preparing response information in response to a request received by the transmission / reception means;
For linked information initial request including broadcasting station identification information,
The broadcast program corresponding to the current time and the broadcasting station is specified, the program information related to the program is extracted, and if the link information does not exist in the program, the first flag information is set as true as response information,
If linked information exists in the program, if both linked information in the unit time frame corresponding to the current time and linked information in the next time frame exist, obtain them as response information,
If there is linked information for the unit time frame corresponding to the current time, but there is no linked information for the next time frame, the linked information for the unit time frame corresponding to the current time is acquired, and the linked information for this time frame is obtained. A link information initial request handling means that creates information that makes the information and the second flag information true as response information;
For linked information continuation requests that request linked information for the next unit time frame,
If linked information for the next unit time frame exists, the linked information for the next time frame is acquired as response information,
If there is no linked information for the next unit time frame, the linked information continuation request handling means that sets the second flag information as true and sets the response information;
A program information table for recording a set of program identifier, broadcast station identification information, broadcast start time, broadcast end time, and information indicating presence / absence of linked information for each program to be broadcast, and further subdividing the time zone of the program to be broadcast Program information database including a unit time frame identifier, a program identifier, an elapsed time after the start of broadcasting, and an interlocking information table that records information of interlocking information contents as a set for each unit time frame that is a unit An interlocking information distribution server device comprising: The linked information distribution server device according to claim 1, wherein the current time is a time given by the linked information distribution server device when the linked information initial request arrives at the linked information distribution server device. The linked information initial request responding means, when the linked information for the next time slot of the unit time frame based on the current time does not exist in the program, the program broadcast in the next time slot of the program on the same channel If the link information exists, the link information of the first unit time frame is extracted as the link information of the next unit time frame and becomes a part of the response information. If the link information does not exist, the second flag information is set as true. The interlocking information distribution server device according to claim 1, which is a part of information. The linked information continuation request handling means, if linked information for the next unit time frame does not exist in the program, if linked information exists in a program broadcast in the next time zone of the program on the same channel. The interlocking information distribution server device according to claim 1, wherein the interlocking information distribution server device according to claim 1, wherein the interlocking information of the first unit time frame is acquired as response information, and if it does not exist, the second flag information is set to true as response information. A linked information distribution server device that responds to a request from a user terminal via a network,
A transmission / reception means for accepting a request from a user terminal via a network and returning response information according to the request;
A control means for calling a means for preparing response information in response to a request received by the transmission / reception means;
For linked information initial request including broadcasting station identification information,
The broadcast program corresponding to the current time and the broadcasting station is specified, the program information related to the program is extracted, and if the link information does not exist in the program, the first flag information is set as true as response information,
If the link information exists in the program, the link information first request response means that extracts the link information of the unit time frame corresponding to the current time and uses it as response information;
For linked information continuation requests that request linked information for the next unit time frame,
If linked information for the next unit time frame exists, obtain linked information for the next time frame as response information,
If there is no linked information for the next unit time frame, the linked information continuation request handling means that sets the second flag information as true and sets the response information;
A program information table for recording a set of program identifier, broadcast station identification information, broadcast start time, broadcast end time, and information indicating presence / absence of linked information for each program to be broadcast, and further subdividing the time zone of the program to be broadcast Program information database including a unit time frame identifier, a program identifier, an elapsed time after the start of broadcasting, and an interlocking information table that records information of interlocking information contents as a set for each unit time frame that is a unit An interlocking information distribution server device comprising: 6. The linked information distribution server device according to claim 5, wherein the current time is a time given by the linked information distribution server device when the linked information initial request arrives at the linked information distribution server device. The linked information continuation request handling means, if linked information for the next unit time frame does not exist in the program, if linked information exists in a program broadcast in the next time zone of the program on the same channel. 6. The linked information distribution server device according to claim 5, wherein the linked information of the first unit time frame is acquired as response information, and if it does not exist, the second flag information is set as true response information. A computer program for operating a terminal device having a network communication function for transmitting a request to a linked information distribution server device according to any one of claims 1 to 4 through a network and receiving response information. By being interpreted and executed by the CPU of the device,
A function to acquire broadcast station identification information;
Storage means for storing the URL of the link information distribution server device;
A function of transmitting a link information initial request including broadcast station identification information in the URL;
A function of sending a link information continuation request to the URL within a predetermined time based on the end of the unit time frame of the link information currently displayed;
Storage means for temporarily storing response information from the link information distribution server device for the link information initial request and link information continuation request;
Linked information display function that renders linked information screen based on linked information of unit time frame included in response information of linked information initial request, or linked information of unit time frame included in response information of linked information continuation request,
When the response information of the linkage information initial request includes the first flag information as true, a function for automatically terminating the program immediately;
When the response information of the link information continuation request includes the second flag information as true, the link information includes a function for automatically terminating the program when the unit time frame of the link information displayed at that time ends. A computer program containing instructions that operate as a display terminal. A computer program for operating a terminal device having a network communication function for transmitting a request to a linked information distribution server device according to any one of claims 5 to 7 through a network and receiving response information. By being interpreted and executed by the CPU of the device,
A function to acquire broadcast station identification information;
Storage means for storing the URL of the link information distribution server device;
A function of transmitting a link information initial request including broadcast station identification information in the URL;
A function to send a linked information continuation request for requesting linked information for the next unit time frame of the currently displayed linked information unit time frame,
Storage means for temporarily storing response information from the link information distribution server device for the link information initial request and link information continuation request;
Linked information display function that renders linked information screen based on linked information of unit time frame included in response information of linked information initial request, or linked information of unit time frame included in response information of linked information continuation request,
When the response information of the linkage information initial request includes the first flag information as true, a function for automatically terminating the program immediately;
When the response information of the link information continuation request includes the second flag information as true, the link information includes a function for automatically terminating the program when the unit time frame of the link information displayed at that time ends. A computer program containing instructions that operate as a display terminal. A resident computer program for operating a terminal device having a network communication function for transmitting a request to the interlocking information distribution server device according to any one of claims 1 to 4 through a network and receiving response information. By being interpreted and executed by the CPU of this terminal device,
A function to put itself in a dormant state as an initial state when activated by the OS;
A function to acquire broadcast station identification information;
Storage means for storing the URL of the interlocking information distribution server device;
A function of transmitting a linked information initial request including broadcast station identification information in the URL when the broadcast station identification information is acquired;
A function of transmitting a linked information initial request including broadcast station identification information in the URL when the next program start time comes in the pause state;
A function of sending a link information continuation request to the URL within a predetermined time based on the end of the unit time frame of the link information currently displayed;
Storage means for temporarily storing response information from the link information distribution server device for the link information initial request and link information continuation request;
Linked information display function that renders linked information screen based on linked information of unit time frame included in response information of linked information initial request, or linked information of unit time frame included in response information of linked information continuation request,
When the response information of the interlocking information initial request includes the first flag information as true, the function immediately puts the program in a dormant state;
When the response information of the link information continuation request includes the second flag information as true, the link is provided with a function to put the program in a dormant state when the unit time frame of the link information displayed at that time ends. A computer program containing instructions that operate as an information display terminal. The terminal device provided with the display part which mounted the computer program of any one of Claims 8-10.

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