KR20100060542A - Transmission system for providing url information using wireless terminal and method thereof - Google Patents

Abstract

PURPOSE: A transmission system for providing URL information using a wireless terminal, and a method thereof are provided to supply detailed information in real time with a wireless terminal when a user reads detailed information about a specific object in broadcasting contents during broadcasting viewing with an IPTV. CONSTITUTION: A set-top box(200) receives contents and URL(Uniform Resource Locator) information of plural specific objects in broadcasting contents from a contents server(400). The set-top box transmits the broadcasting contents with an IPTV(Internet Protocol Television)(110) in real time. If a selection signal of the specific object is inputted to the set-top box during display of the broadcasting contents, the set-top box transmits URL information of the specific object corresponding to the selection signal to a web server(500). The set-top box transmits detailed information of the selected specific object to a wireless terminal(130).

Description

Transmission System for Providing URL Information of Contents Using Wireless Terminal {Transmission System for Providing URL Information using Wireless Terminal and Method Thereof}

The present invention relates to a content delivery service, and more particularly, to a transmission system and method for providing URL information of content using a wireless terminal for transmitting URL information of a specific object included in broadcast content to another screen. .

Modern digital TV systems are interactive or interactive TV broadcasts, which are useful for providing additional information unlike conventional analog broadcasts.

Such digital broadcasting broadcasts contents provided by contents providers (CP) in MPEG2-TS (Transport Stream) format together with video and audio taken by broadcasting stations, and users (viewers) are connected to a set top box (STB). The broadcast is received and viewed on a digital TV screen.

On the other hand, data broadcasting is a technical concept that can transmit and broadcast documents, still images, graphics, audio, video, and software products to information processing devices such as PCs, set-top boxes, or mobile communication devices at high speed. Together with the program, weather, securities and news information, the Internet and e-commerce are also available.

Such data broadcasting has a characteristic that when a digital signal is transmitted to a broadcast radio wave, a receiver automatically decodes and processes the data, and the receiver receives the result directly or controls other machinery or the like based on the information. Say a broadcast in a new field. The data broadcast signal has a common point with digital broadcast that digitally transmits audio and video signals through digital transmission.

Data broadcasting is a method of multiplexing and transmitting data signals to radio and television broadcasting, but there are also data broadcasting for transmitting information independent of data broadcasting for transmitting contents related to these broadcasting as digital signals. Such data broadcasting can be said to be a multimedia information service that combines the advantages of a wireless transmission system using television radio waves and the interactive function of the Internet.

On the other hand, a web server is a request for a web client of a web client to request an HTML document of a location specified in a URL (Uniform Resourse Locator) to the web server 120 using the HTTP (HyperText Transfer Protocol) protocol. Find the received HTML document and provide it to the client. The web client's web browser shows the provided HTML document to the user through the user's display device according to the format. At this time, the HTML document that the web server sends to the client is delivered without modification as it is stored in the place specified in the URL regardless of the user's various computing environments.

The biggest feature of web server is that it can provide information in hypertext or hypermedia form. Hypertext refers to information that contains links to other information as text information. Hypermedia refers to information including not only simple text but also links to various types of information such as pictures, voices, and moving images. Point. Thus, the user can receive a new document at the URL specified in the link by clicking on the link on the screen. Like many other Internet services, the Web uses a client / server system. Web clients (hereinafter referred to as "web browsers") and web servers are a type of application that exchanges data through standard protocols. HTTP (HyperText Transfer Protocol) is one of the standard protocols of the web. It is used for the communication between the web client and the web server in the exchange of hypertext or hypermedia web documents.

Recently, when contents including television broadcasting data are transmitted to a digital TV, technology development for viewing detailed information on a specific object of broadcasting contents regardless of data broadcasting with other wireless devices in connection with the web server. This is required.

An object of the present invention is to receive a real-time transmission to a separate wireless terminal when the user wants to read the detailed information on the specific object included in the broadcast object in the middle of watching the broadcast.

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In the transmission method for providing the URL information of the content using a wireless terminal according to an embodiment of the present invention, the set-top box receives the broadcast content and the URL information of a plurality of specific objects included in the broadcast content from the content server, the reception Real-time transmission of the broadcast content to the IPTV; When the selection signal of the specific object is input to the set-top box at any point in time at which the received broadcast content is displayed through the IPTV, the set-top box extracts URL information of the selected specific object corresponding to the selection signal. Requesting and receiving detailed information of the selected specific object from a corresponding web server; And transmitting, by the set top box, detailed information of the selected specific object to a wireless terminal. It may include.

The requesting and receiving detailed information of the extracted specific object from the web server may include: transmitting, by the set-top box, URL information of the selected specific object to a DNS server; The set top box receiving an IP address converted from the DNS server by using URL information of the selected specific object; And receiving, by the set-top box, requesting detailed information of the specific object from the web server using the IP address. It may include.

Before the set-top box receives the broadcast content and URL information of a plurality of specific objects included in the broadcast content from a content server, and transmits the received broadcast content to IPTV in real time, Transmitting the broadcast content request signal to the content server; It may further include.

The step of transmitting, by the set-top box, detailed information of the selected specific object to the wireless terminal may be transmitted to the wireless terminal through short range wireless communication.

The transmission system for providing the URL information of the content using a wireless terminal according to an embodiment of the present invention, receives and stores the broadcast content and the URL information of a plurality of specific objects included in the broadcast content from a content server, Receives a selection signal for one specific object from a specific object, extracts URL information of the selected specific object corresponding to the selection signal, and selects the selected specific object to the corresponding web server by using the URL information of the selected specific object. Set-top box for receiving and requesting detailed information corresponding to the; And a wireless terminal for receiving and displaying the detailed information from the set top box through short range wireless communication. It may include.

The set-top box may receive the converted IP address by transmitting URL information of the selected specific object to a DNS server, and request and receive detailed information corresponding to the selected specific object from the web server using the IP address. have.

Set-top box according to an embodiment of the present invention, the transceiver for performing wireless communication; Receiving the broadcast content and the URL information of a plurality of specific objects included in the broadcast content from a content server, and controls the transceiver to transmit the received broadcast content to the IPTV, and extracts the URL information of the specific object selected from the IPTV A second controller configured to control the transceiver to request and receive detailed information of the selected specific object from a corresponding web server using URL information of the selected specific object; And a second short range wireless communication unit which transmits detailed information of the selected specific object to a wireless terminal through the short range wireless communication. It may include.

The set top box may include a second database unit configured to store the broadcast content and the URL information received through the transceiver unit; It may further include.

The second control unit transmits URL information of the selected specific object to a DNS server, receives the converted IP address according to the transmission, and provides detailed information corresponding to the selected specific object to the web server using the IP address. The transceiver may be controlled to receive the request.

According to the present invention, when a user watches a broadcast by receiving broadcast content through an IPTV and wants to read detailed information on a specific object included in the broadcast content, the user can receive a real-time transmission to a separate wireless terminal.

In addition, according to the present invention, when a user displays detailed information on a specific object included in broadcast content on an existing IPTV, the corresponding portion displaying the detailed information provides an effect of solving the problem of not being able to view the corresponding broadcast content. do.

Hereinafter, a detailed description of a preferred embodiment of the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted when it is deemed that they may unnecessarily obscure the subject matter of the present invention.

Meanwhile, in the present specification, when one component 'transmits' data or a signal to another component, any one component may directly transmit data or a signal to another component, and at least one other This means that a component can transmit data or a signal to another component.

1 is a block diagram of a transmission system for providing URL information of content using a wireless terminal according to an embodiment of the present invention. Referring to FIG. 1, a transmission system for providing URL information includes an IPTV (Internet Protocol Television) 110, a wireless terminal 130, a set-top box 200, a communication network 300, a DNS server 310, and a content server 400. And a web server 500.

The IPTV 110 is a device that provides various contents (broadcast content, video content, audio content, text content, and data content) through a screen (not shown) through a communication network (xDSL, FTTH, etc.) of an IP-based network. For example, the quality of service (QoS) / Quality of Experience (QoE), information protection, interaction, reliability, and the like of a prescribed quality may be satisfied.

 In the present invention, the IPTV 110 has a higher resolution than the wireless terminal 130 and may be a terminal having a large number of pixels, but is not limited thereto. In addition, the IPTV 110 receives the broadcast content from the content server 400 using the set-top box 200.

The wireless terminal 130 is a device for providing Internet data to the user through the wireless link 140, which is a comprehensive concept of portable devices. Personal Digital Assistant (PDA), Global System for Mobile (GSM) Phone, Wideband CDMA (W-CDMA) Phone, CDMA-2000 Phone, Mobile Broad and System (MBS) Phone, Portable Multimedia Player (PMP), Handheld Like a handheld computer, a multimedia phone and a multimedia player may be included. Here, the MBS phone may be a mobile phone to be used in the fourth generation system currently being discussed.

Meanwhile, the wireless terminal 130 may include a module connected to the set-top box 200 through short-range wireless communication to receive detailed information of a specific object. In the present specification, the module may mean a functional and structural combination of hardware for performing the technical idea of the present invention and software for driving the hardware. For example, the module may mean a logical unit of a predetermined code and a hardware resource for performing the predetermined code, and means a physically connected code or does not necessarily mean one kind of hardware. It can be easily inferred by the average expert in the art.

The short range wireless communication may be a Personal Area Network (PAN), Bluetooth, ZigBee, UWB (Ultra WideBand).

The set-top box 200 has a communication function necessary to use a bidirectional multimedia communication service such as the IPTV 110, and includes content selection menu data such as broadcast content data and electronic program guide (EPG), advertisement data, and bidirectional multimedia communication service data. It has data storage of a typical set-top box for storing back.

 The set top box 200 is installed at the user side and connected to the IPTV 110. In addition, the set-top box 200 is connected to the content server 400 installed in the broadcasting station through the communication network 300, and receives the digital room transmission call of various channels provided by the content server 400, such as the Internet protocol (IP) Then, the broadcast of the channel selected by the user is transmitted through the screen of the connected IPTV 110 so that the user can watch.

In the present invention, the set-top box 200 also stores the URL information of the specific object transmitted from the content server 400. When the user selects a specific object by using the control device of the IPTV 110 (remote control 111 or keypad 112, see FIG. 4), and transmits a URL information request for the specific object selected by the set-top box 200. The set-top box 250 extracts URL information on the selected specific object from the corresponding prestored plurality of specific objects. The set-top box 200 transmits URL information about the extracted specific object to the DNS server 310 and accesses the web server 500 corresponding to the returned IP address. The set-top box 200 may receive the detailed information of the specific object extracted from the connected web server 500 and transmit the same to the wireless terminal 130 using the wireless access link 150 to display the detailed information. On the other hand, the communication between the set-top box 200 and the wireless terminal 130 may be by short-range wireless communication.

The communication network 300 refers to a data communication network for data transmission and information exchange between the wireless terminal 130, the set-top box 200, the content server 400, and the web server 500, and may be an IP network. The IP network is a high-speed backbone network of a large communication network capable of large capacity, long distance voice and data service, and may be, for example, the Internet. In addition, the IP network may be a next-generation wired network for providing high-speed multimedia services based on ALL IP (Internet Protocol). Meanwhile, the communication network 300 may be a mobile communication network. The mobile communication network may be a synchronous mobile communication network or an asynchronous mobile communication network. As an embodiment of the asynchronous mobile communication network, a WCDMA (Wideband Code Division Multiple Access) communication network is exemplified. In this case, although not shown in the figure, the mobile communication network may include a Radio Network Controller (RNC), and an asynchronous MSC. Meanwhile, although the WCDMA network is taken as an example, it is well known that it may be changed to a next-generation mobile communication network such as 3G LTE network and 4G network.

The DNS server 310 converts URL information into an IP address, and is a kind of name server that converts a symbolic name into a numeric address used by a machine and informs it. In the present invention, the DNS server 310 recognizes the URL information and returns the IP address of the URL to the set-top box 200, if the URL information for the specific object selected from the set-top box 200 is input. Thereafter, the set-top box 200 connects to the web server 500 using the corresponding IP address, receives the URL data, and transfers the data to the screen of the wireless terminal 130 so that the user can obtain detailed information of the specific object. .

The content server 400 is a server installed in a broadcasting station and stores a page provided by a content provider, an object such as broadcast content, and responds to a content request from the IPTV 110. Server. As a main function, the content server 400 serves to transmit content corresponding to digital broadcasting of various channels requested from the IPTV 110, and transmits some of the contents held by the content server 400 to the set-top box 200. Can be sent and stored. Through this, the set-top box 200 is able to quickly provide the content according to the request of the IPTV (110).

Meanwhile, in the present invention, the content server 400 may transmit not only the broadcast content but also Uniform Resource Locator (URL) information for providing detailed information of a specific object included in the broadcast content, to the set-top box 200.

The web server 500 includes a plurality of web servers 500-1 to 500-n, and has a resource corresponding to URL information for providing detailed information of a specific object to which the set-top box 200 of the user wants to access. It is a server that provides web services to users. The web server 500 may receive a HyperText Transfer Protocol (HTTP) request from the set-top box 200 having a web browser and provide a HyperText Markup Language (HTML) document according to the HTTP request.

In the present invention, the web server 500 may perform a function of returning detailed information of a specific object in response to a request for detailed information of the specific object received from the set-top box 200.

2 is a block diagram showing the structure of the wireless terminal 130 of FIG.

As shown in FIG. 2, the wireless terminal 130 may include a first short range wireless communication unit 131, a first control unit 133, a first database unit 135, and a display device 137.

The first short range wireless communication unit 131 receives detailed information of a specific object selected from the set top box 200.

The first control unit 133 is equipped with a variety of application programs for the user, the user application program is a wireless terminal via the first short-range wireless communication unit 131, the data corresponding to the detailed information of the specific object selected from the set-top box 200 Control to receive between the 130 and the set-top box 200. The user application program enables the wireless terminal 130 to automatically connect by a certain process simply by updating the software.

In addition, the first controller 131 may control to display detailed information of the specific object received through the first short range wireless communication unit 131 through a display device such as a screen of the wireless terminal 130.

The first database unit 135 stores detailed information of the selected specific object received from the set-top box 200 through the first short range wireless communication unit 131. Meanwhile, in the present specification, the database may mean a functional structural combination of software and hardware that stores information corresponding to each database. The database may be implemented as at least one table, and may further include a separate Database Management System (DBMS) for searching, storing, and managing information stored in the database. In addition, it may be implemented in various ways such as linked-list, tree, and relational database, and includes all data storage media and data structures capable of storing information corresponding to the database.

The display apparatus 137 displays detailed information of the selected specific object received from the set-top box 200 through the first short range wireless communication unit 131.

3 is a block diagram showing the structure of the set-top box 200 of FIG.

Referring to FIG. 3, the set top box 200 includes a transceiver 210, a second database unit 230, a second controller 250, and a second short range wireless communication unit 270.

The transceiver 210 receives the broadcast content and URL information of a plurality of specific objects included in the broadcast content from the content server 400. The transceiver 210 transmits the received broadcast content to the IPTV 110 in real time, so that the user of the IPTV 110 can watch the broadcast in real time.

In addition, the transceiver 210 transmits the URL information of the selected specific object to the DNS server 310, and thus receives the IP address converted from the URL information of the selected specific object transmitted from the DNS server 310.

In addition, the transceiver 210 requests the specific information of the specific object to the web server 500 using the converted IP address, and thus receives the detailed information of the specific object from the web server 500.

The second database unit 230 stores the broadcast content received from the content server 400 by the transceiver 210 and the URL information of the specific object.

The second control unit 250 uses a selection signal which is selection information for a specific object selected by the adjusting device of the IPTV 110 (remote control 111 or keypad 112, see FIG. 4). 230) 3) URL information of the corresponding selected specific object is extracted.

Thereafter, the second controller 250 transmits the URL information of the selected specific object to the DNS server 310 and receives and transmits the IP address obtained by converting the URL information of the selected specific object from the DNS server 310. To control. In addition, the second control unit 250 controls the transceiver 210 to request and receive detailed information of the selected specific object from the web server 500 using the converted IP address.

The second short-range wireless communication unit 270 transmits the detailed information of the specific object received by the set-top box 200 using the DNS server 310 and the web server 500 to the wireless terminal.

4 is a view for explaining a method of selecting a specific object using the screen 113 of the IPTV in the transmission system for providing the URL information of the content using the wireless terminal according to an embodiment of the present invention.

1 to 4, the viewer of the IPTV 110 may select the area A indicated by the dotted rectangle with the adjusting device (the remote control 111 or the keypad 112) of the IPTV 110. For example, as shown in the figure, soccer shoes of a soccer player indicated by area A can be selected.

To this end, the content server 400 may transmit the URL information of the specific object together with the broadcast content to provide detailed information about the specific object to the second database unit 230 of the set-top box 200.

An example of detailed information about a specific object stored in the second database unit 230 may be as shown in FIG. 5.

That is, the object A is for the soccer shoes (specific objects) of the soccer player of FIG. 4, and the corresponding web server including URL information (http://www.nxn.co.kr/index.html) for the corresponding soccer shoes. There is detailed information at 500.

On the other hand, the range may mean that the area indicated by the center point of the rectangle A represents a point for soccer shoes from A01 to C12. A01 to C12 may be a range for a pixel. According to an embodiment of the present invention, the alphabet may represent a horizontal pixel and the number may represent a vertical pixel.

The selection signal for the specific object selected by the above method is transmitted to the second control unit 250 inside the set top box 200. Thereafter, as described above, the second controller 250 extracts URL information of the selected specific object corresponding to the selection signal from the URL information of the plurality of specific objects stored in advance. The second controller 250 receives the detailed information of the selected specific object from the web server 500 using the URL information of the selected specific object, and then transmits the detailed information of the selected specific object to the wireless terminal 130 through the second short range wireless communication unit 270. do.

6 is a flowchart illustrating a transmission method for providing URL information of content using a wireless terminal according to an embodiment of the present invention. 1 to 6, first, although not shown, a broadcast content request is transmitted to the content server 400 through the set-top box 200 using an IPTV control device (remote control 111 or keypad 112). .

Accordingly, the content server 400 transmits URL information of a plurality of specific objects among the broadcast content and the broadcast content to the set-top box 200 (S10). Here, the URL information of the specific object may be URL information of the web server 500 in which detailed information of the specific object is stored.

The set top box 200 stores the received broadcast content and URL information of a plurality of specific objects in the second database unit 230 (S20), and the set top box 200 stores the received broadcast content in real time with the IPTV 110. Transmit (S30). The user of the IPTV 110 allows the user to watch the received broadcast content using the screen 113 of FIG. 4 (FIG. 4).

At any point in time when the IPTV 110 displays broadcast content, the user of the IPTV 110 may be in range (see FIG. 4) by the control device of the IPTV 110 (remote control 111 or keypad 112, see FIG. 4). When a specific object is selected by specifying a range (A range) (S40), the selection signal for the selected specific object is transmitted to the set-top box 200 (S50).

The set-top box 200 extracts the URL corresponding to the URL information of the selected specific object by using the selection signal among the URL information of the plurality of specific objects stored in the step S20 (S60).

When the extraction is completed, the set-top box 200 transmits the URL information of the selected specific object to the DNS server 310 (S70).

The DNS server 310 receives the URL information of the selected specific object from the set-top box 200, converts it into an IP address and returns it (S80).

The set-top box 200 requests detailed information of the specific object to the web server 500 including detailed information of the selected specific object using the IP address returned in step S100 (S90).

In response to the request of step S90, the web server 500 transmits detailed information of the selected specific object to the set-top box 200 (S100).

The set top box 200 transmits detailed information of the selected specific object to the wireless terminal 130 through short range wireless communication (S110).

The wireless terminal 130 receives the detailed information of the specific object selected by the IPTV 110 from the set-top box 200, thereby reducing the inconvenience of searching again for the specific object.

 The invention can also be embodied as computer readable code on a computer readable recording medium. Computer-readable recording media include all kinds of recording devices that store data that can be read by a computer system. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disks, optical data storage devices, and the like, which are also implemented in the form of carrier waves (eg, transmission over the Internet). It also includes.

The computer readable recording medium can also be injected onto a networked computer system so that the computer readable code is stored and executed in a distributed fashion. And functional programs, codes and code segments for implementing the present invention can be easily inferred by programmers in the art to which the present invention belongs.

Although the contents of the present invention have been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art may realize various modifications and other equivalent embodiments therefrom. I will understand. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

The transmission system and method for providing URL information of contents using a wireless terminal of the present invention are wireless when a user wants to search detailed information on a specific object included in the broadcast content while the user is watching a broadcast by receiving broadcast content. Can be transmitted in real time to the terminal. Thus, users can receive content more efficiently and quickly. In addition, content providers can contribute to the expansion of related businesses by providing high quality services to customers.

1 is a block diagram of a transmission system for providing URL information of content using a wireless terminal according to an embodiment of the present invention.

FIG. 2 is a block diagram showing the structure of the radio terminal of FIG.

3 is a block diagram illustrating a structure of the set top box of FIG. 1.

4 is a diagram illustrating a method of selecting a specific object using a screen of an IPTV in a transmission system for providing URL information of content using a wireless terminal according to an embodiment of the present invention.

5 is a diagram illustrating detailed information about a specific object stored in a second database unit according to an embodiment of the present invention.

6 is a flowchart illustrating a transmission method for providing URL information of content using a wireless terminal according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

110: IPTV 130: wireless terminal

200: set-top box 300: communication network

400: content server 500: web server

Claims (9)

Receiving, by a set-top box, content from a content server, URL information of a plurality of specific objects included in the broadcast content, and transmitting the received broadcast content to an IPTV in real time; When the selection signal of the specific object is input to the set-top box at any point in time at which the received broadcast content is displayed through the IPTV, the set-top box extracts URL information of the selected specific object corresponding to the selection signal. Requesting and receiving detailed information of the selected specific object from a corresponding web server; And Transmitting, by the set top box, detailed information of the selected specific object to a wireless terminal; Transmission method for providing URL information of the content using a wireless terminal comprising a. The method of claim 1, wherein requesting and receiving detailed information of the extracted specific object from the web server comprises: Transmitting, by the set-top box, URL information of the selected specific object to a DNS server; The set top box receiving an IP address converted from the DNS server by using URL information of the selected specific object; And The set-top box requesting and receiving detailed information of the specific object from the web server using the IP address; Transmission method for providing URL information of the content using a wireless terminal comprising a. The method of claim 1, wherein the set-top box receives the broadcast content from the content server and URL information of a plurality of specific objects included in the broadcast content, and transmits the received broadcast content to IPTV in real time. Transmitting, by the set top box, the broadcast content request signal by the IPTV to the content server; Transmission method for providing URL information of the content using a wireless terminal further comprising. The method of claim 1, wherein the set-top box transmits detailed information of the selected specific object to a wireless terminal. Transmission method for providing URL information of content using a wireless terminal, characterized in that for transmitting to the wireless terminal using a short-range wireless communication. Receives and stores the broadcast content and URL information of a plurality of specific objects included in the broadcast content from a content server, Receiving a selection signal for one specific object from among the plurality of specific objects, extracting URL information of the selected specific object corresponding to the selection signal, A set-top box that requests and receives detailed information corresponding to the selected specific object from the web server by using the URL information of the selected specific object; And A wireless terminal for receiving and displaying the detailed information from the set-top box through short-range wireless communication; Transmission system for providing URL information of the content using a wireless terminal comprising a. The method of claim 5, wherein the set top box, Receiving the converted IP address by transmitting the URL information of the selected specific object to the DNS server, and requesting and receiving detailed information corresponding to the selected specific object to the web server using the IP address Transmission system for providing URL information of the content using. A transceiver for performing wireless communication; Receiving the broadcast content from the content server and the URL information of a plurality of specific objects included in the broadcast content to control the transceiver to transmit the received broadcast content to the IPTV, Extracting URL information of the specific object selected from the IPTV; A second controller configured to control the transceiver to request and receive detailed information of the selected specific object from a corresponding web server using URL information of the selected specific object; And A second short range wireless communication unit which transmits detailed information of the selected specific object to a wireless terminal through the short range wireless communication; Set top box comprising a. The method of claim 7, wherein A second database unit for storing the broadcast content and the URL information received through the transceiver; Set top box further including. The method of claim 7, wherein the second control unit, Transmitting URL information of the selected specific object to a DNS server and receiving a converted IP address according to the transmission; Set-top box, characterized in that for controlling the transmission and reception unit to request and receive the detailed information corresponding to the selected specific object to the web server using the IP address.

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