KR20110120506A - A digital broadcast receiver and method for providing a content - Google Patents

Abstract

PURPOSE: A digital broadcasting reception unit and content providing method are provided to enable a user to search desired content by providing content lists about content in which are provided from content providers. CONSTITUTION: A digital broadcasting reception apparatus transmits a content search request message to plural content providers(S715). The digital broadcasting reception apparatus receives content lists in which are searched by the plural content providers(S720). The digital broadcasting reception apparatus is combined with the received content lists(S725). The digital broadcasting reception apparatus arranges the combined content list based on priority information(S730). The digital broadcasting reception apparatus displays the arranged content lists(S735).

Description

A digital broadcast receiver and method for providing a content}

The present invention relates to a digital broadcast receiver and a content providing method, and more particularly, to a digital broadcast receiver and a content providing method for receiving and providing content provided by a content provider.

The broadcasting receiver transmits content produced by a broadcaster through a radio wave transmission medium such as terrestrial, cable, or satellite broadcasting, and the user is serviced by viewing through a receiver capable of receiving the respective delivery media.

However, as digital-based digital broadcasting technology has been developed and commercialized in existing analog broadcasting, real-time broadcasting, contents on demand, games, and news using Internet networks connected to homes in addition to existing radio waves or wired cable media. It is now possible to provide a variety of content services to the user.

An example of providing a content service using the Internet network is IPTV (Internet Protocol TV). The IPTV transmits various information services, video contents, and broadcasts through an internet network and provides them to the receiver of the user. The Internet network may be implemented on various types of networks such as an optical cable network, a coaxial cable network, a fiber to the home (FTTH), a telephone network, and a wireless network based on an Internet Protocol (IP).

In the case of the service using the Internet network as described above, unlike general terrestrial broadcasting, the interactivity may be added, and the user may watch a content service that he / she wants to see at a convenient time.

As various broadcasting services are provided, the information is displayed on a TV screen when providing information on the broadcasting service to a user of the broadcasting receiver, or when setting or changing the setting and request for the broadcasting service, display setting, audio setting, or the like. It uses a method using on-screen display (OSD).

An object of the present invention is to provide a digital broadcast receiver and a content providing method that enables a user to more easily search for desired content.

Another object of the present invention is to provide a digital broadcast receiver and a content providing method that allow a user to more easily display searched contents.

In order to achieve the above technical problem, the content providing method according to the present invention comprises the steps of: transmitting a content search request message including a search word to a plurality of content providers; And receiving the received content lists, combining the received content lists, sorting the combined content list based on priority information, and controlling the sorted content list to be displayed. The priority information may include at least one of user recommendation information, content price information, rental period information, image quality information, download count information, release date information, and download speed information.

Preferably, the content providing method comprises the steps of: selecting content from the content list, displaying the selected content, and when the display of the selected content is terminated, automatically displaying the next content in the content list. Has

In order to achieve the above technical problem, the digital broadcast receiver according to the present invention transmits a content search request message including a search word to a plurality of content providers, and the content list searched based on the search word from the plurality of content providers. And a control unit for combining the network interface unit for receiving the received content lists with the received content lists, sorting the combined content list based on priority information, and controlling the sorted content list to be displayed. Here, the priority information may include at least one of user recommendation information, content price information, rental period information, image quality information, download count information, release date information, and download speed information.

Preferably, the digital broadcast receiver may further include a user interface configured to select content from the content list, and the control unit controls to display the selected content, and when the display of the selected content is terminated, The next content of the content list can be controlled to be displayed automatically.

According to the digital broadcast receiver and the content providing method according to the present invention, since a content list for contents provided by a plurality of content providers is provided, a user can easily search for desired content and obtain high quality content at a lower cost. In addition, since the content indicated by the searched content list may be continuously displayed, the searched content may be easily displayed.

1 is a diagram schematically showing an IPTV system according to an embodiment of the present invention;
2 is a diagram illustrating a hierarchical structure for broadcasting a Content Download Service (CDS) of IPTV;
3 is a block diagram showing the configuration of a preferred embodiment of a digital broadcast receiver according to the present invention;
4 is a diagram illustrating an embodiment of a search word input window;
5 is a diagram illustrating an embodiment of a screen on which a content list is displayed;
6 is a view showing another embodiment of a screen on which a content list is displayed;
7 is a flowchart illustrating a preferred embodiment of the method for providing content according to the present invention.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described. At this time, the configuration and operation of the present invention shown in the drawings and described by it will be described as at least one embodiment, by which the technical spirit of the present invention and its core configuration and operation is not limited.

The terms used in the present invention have been selected as widely used general terms as possible in consideration of the functions in the present invention, but may vary according to the intention or custom of the person skilled in the art or the emergence of new technologies. In addition, in certain cases, there is also a term arbitrarily selected by the applicant, in which case the meaning will be described in detail in the description of the invention. Therefore, it is intended that the terms used in the present invention should be defined based on the meanings of the terms and the general contents of the present invention rather than the names of the simple terms.

The digital broadcast receiver refers to a broadcast receiver capable of receiving digital broadcast transmitted by digital video and audio signals. Here, unlike conventional analog broadcasting, digital broadcasting refers to a broadcasting technology capable of two-way operation, reproduction, and accumulation because the television signal is compressed and exported in a digital form that encodes and records information signals. Compared to analog broadcasting, such digital broadcasting is more resistant to noise, has a lower data loss, and transmits additional error correction information, which is advantageous for error correction, and provides a high resolution and clear picture. In addition, unlike analog broadcasting, digital broadcasting is an interactive service capable of receiving a broadcasting service from a broadcasting station and providing information to the broadcasting station.

In the present invention, the digital broadcast is used as a concept that includes not only broadcasts transmitted through terrestrial waves, satellites and cables, but also broadcasts transmitted through Internet networks. That is, digital broadcasting is defined as a concept including IP (Internet Protocol) broadcasting.

In the present invention, the digital broadcast receiver includes a broadcast receiver capable of providing an Internet service to a viewer, and may be a television equipped with a set-top box or a display device. The Internet service includes content services such as CoD (Content's on Demand), YouTube service, weather, news, local information and search, entertainment services such as games and karaoke, TV mail, and TV SMS (Short Message Service). This means a service that can be provided through the Internet. Accordingly, in the present invention, the digital broadcast receiver includes a network TV, a web TV and a broadband TV. In addition, the broadcast service may include an internet service as well as a broadcast service provided through terrestrial, satellite, and cable.

There may be various system architectures for transmitting digital broadcasts. For example, an Internet Protocol TV (IPTV) system is a system capable of providing various contents using an Internet network, and may be largely composed of a server, a network, and a client.

The servers of the IPTV are servers that perform various functions such as service discovery and selection server, streaming server, contents guide information server, customer information server, and payment information server. It can be configured as.

Among the servers, the streaming server transmits video data encoded in the stored Moving Picture Experts Group (MPEG) 2, MPEG4, etc. to the user through a network. As a protocol for the transmission, a Real-Time Transport Protocol (RTP), a RTP Control Protocol (RTP), or the like may be used.

In case of using Real-Time Streaming Protocol (RTSP), video stream playback can be controlled to some extent through a function called network trick play such as pause, replay, and stop. . The protocols are one example and other real time transmission protocols may be used depending on the implementation.

The content guide information server is a server that provides information on the various contents provided. The content guide information is information corresponding to electronic program guide (EPG) information and includes various information about content. The content guide information server stores content guide information data, and provides the stored data to the receiver.

The information server related to service discovery and selection among the servers provides the receiver with access information, playback information, and the like, for the servers providing various content services such as broadcasting, contents on demand (COD), and games.

The network system consists of an internet based network and gateways. The Internet-based network may use various types of networks such as an optical cable network, a coaxial cable network, a fiber to the home (FTTH), a telephone network, a wireless network, and the like based on IP. In addition to general data transfer, the gateway may perform multicast group management and quality of service (QoS) management using protocols such as Internet Group Management Protocol (IGMP).

A receiver of an IPTV is a receiver capable of receiving data transmitted through an internet network and providing the same to a user. The receiver includes an IPTV settop, a homenet gateway, an IPTV embedded TV, and the like.

In the case of a hybrid IPTV system, various contents of the Internet may be provided as well as various existing broadcasting contents. That is, the user can provide various broadcasting contents such as terrestrial broadcasting, cable broadcasting, satellite broadcasting, personal broadcasting, various internet video contents, data contents other than video, and the like. The contents may be provided in real time or may be provided on demand.

1 is a diagram schematically showing an IPTV system according to an embodiment of the present invention.

Referring to FIG. 1, in terms of providing a content service, the IPTV system may be divided into a content provider (CP), a service provider (SP), a network provider (NP), and a user. have.

The content provider produces and provides various contents. As shown in FIG. 1, the content provider includes a terrestrial broadcaster, a cable SO, or a MSO, a satellite broadcaster, and an internet broadcaster. (Internet broadcaster) and the like.

The service provider provides a service package of contents provided by the content provider. For example, the service provider of FIG. 1 packages a first terrestrial broadcast, a second terrestrial broadcast, a cable MSO, satellite broadcast, various Internet broadcasts, and provides the same to a user.

The network provider provides a network for providing the service to the user. The user may build a home network end user (HNED) to receive the service.

Conditional access, content protection, or the like may be used as a means for protecting the content transmitted from the IPTV system. As one example for the above-mentioned restriction reception or content protection, a method such as a cable card or a downloadable conditional access system (DCAS) may be used.

FIG. 2 is a diagram illustrating a hierarchical structure for broadcasting a Content Download Service (CDS) of IPTV.

Referring to FIG. 2, the service provider delivers data contents for CDS to an IPTV receiver using a transport protocol. The delivered data content for CDS is stored in the storage of IPTV. The stored data contents for CDS can be executed at the request of the user or the like. Here, the transport protocol may be FLUTE (File Delivery over Unidirectional Transport) mounted on ALC / LCT over IP / UDP, DVB-STP, DVB data / object carousel, File Transfer Protocol (FTP), HTTP (hypertext transfer). protocol) and the like, and the above-described protocol may use other transmission protocols as an example.

When FLUTE is used as the transport protocol, the presence or absence of a CDS service may be known to an IPTV receiver through service discovery and selection (SD & S), and the details of the content may include metadata in a TV Anytime format. Can be found through:

Data contents for CDS may include various types of contents such as A / V contents, data contents, and game contents.

As described above, the digital broadcasting receiver of the present invention including the IPTV may receive various contents and output the provided contents on a display screen according to a user's selection.

3 is a block diagram showing the configuration of a preferred embodiment of a digital broadcast receiver according to the present invention.

Referring to FIG. 3, the digital broadcast receiver 300 according to an embodiment of the present invention may include a separate tuner to receive terrestrial broadcast, cable broadcast, satellite broadcast, and the like. However, in the present invention, for the convenience of description, the description will be made mainly on the part of processing the content transmitted using the Internet network.

The digital broadcast receiver 300 includes a network interface unit 302, an IP manager 304, a service delivery manager 306, a demultiplexer 308, a data decoder 310, a decoder 312, a display unit 316, an application. The manager 318 includes a service information database unit 322, a service discovery manager 324, a service control manager 326, a metadata manager 328, and a content database unit 330.

The network interface unit 302 receives the packets received from the network and transmits the packets to the network. That is, the network interface unit 302 receives an IP packet for transmitting broadcast data and service information from a service providing server through a network. The broadcast data may include content, an update message indicating whether to update the content, metadata, service information data, and software code. In addition, the service information may include service information for the real-time broadcast service and service information for the Internet service.

The network interface unit 302 may transmit a packet for delivering a content search request message to a network. The content search request message may be transmitted to a content provider and a service provider, and may be transmitted to one or a plurality of servers. Here, the content search request message may include at least one search word for searching for content.

The IP manager 304 is involved in packet transmission from the source to the destination for the packet received by the digital broadcast receiver 300 and the packet transmitted by the digital broadcast receiver 300. The IP manager 304 classifies the received packet to correspond to an appropriate protocol, and classifies the packet into the service delivery manager 306, the service discovery manager 324, the service control manager 326, and the metadata manager 328. Outputs

The service delivery manager 306 is responsible for controlling the received service data. For example, when controlling real-time streaming data, RTP / RTCP (Real-Time Transport Protocol / RTP Control Protocol) may be used. When transmitting the real-time streaming data using the RTP, the service delivery manager 306 parses the received data packet according to the RTP and transmits it to the demultiplexer 308 or control of the service manager 320. According to the content database unit 330 is stored. The service delivery manager 306 controls the network reception information to be fed back to a server that provides a service using RTCP.

The demultiplexer 308 demultiplexes the received packet into audio, video, program specific information (PSI) data, and the like, and transmits the demultiplexer 308 to the decoder 312 and the data decoder 310, respectively.

The data decoder 310 decodes service information such as program specific information (PSI). That is, the data decoder 310 receives and decodes a demultiplexed PSI section, a program and service information protocol (PSIP) section, a service information (DVB-SI) section, and the like from the demultiplexer 308.

In addition, the data decoder 310 decodes the received sections to create a database of service information, and stores the database of the service information in the service information database unit 322.

The decoder 312 decodes the video data and the audio data received by the demultiplexer 308, and the decoded video and audio data are provided to the user through the display unit 316.

The application manager 318 manages the overall state of the digital broadcast receiver 300, provides a user interface, and manages other managers. To this end, the application manager 318 includes a user interface manager 319 and a service manager 320.

The user interface manager 319 provides a graphical user interface (GUI) for a user using an OSD (On Screen Display), etc., and receives a key input from a user to perform a receiver operation according to the input.

For example, the user interface manager 319 transmits the key input signal to the service manager 620 when the user receives a key input for selecting a service. The key input signal may be a content search request command and a content selection command.

The user interface manager 319 controls to output a virtual keyboard or a virtual keypad on the screen. The user may select and input a specific virtual key on the output virtual keyboard or the virtual keypad by using the arrow keys and the numeric keys of the remote controller. For example, the user may input a user ID and password by selecting a virtual key, and the user interface manager 319 performs user authentication or user input for user authentication based on the user ID and password input from the user. The ID and password may be transmitted to the service provider or the content provider.

The content database unit 330 may store authentication information about an Internet service list and a server account. Here, the Internet service list is a list including information about a content provider or a service provider that provides an Internet service. For example, the Internet service list may include at least one of a name of a server, access information of the server, and guide information about a service provided by the server. The access information of the server may be any one of an internet address and a uniform resource locator (URL).

When the application manager 318 receives a user internet service mode request command, the application manager 318 may control to display information included in the internet service list. That is, the application manager 318 may control to display at least one of a name of a server included in the Internet service list, access information of the server, and guide information about a service provided by the server. In this case, the access information may be displayed as a link for accessing the corresponding server. That is, the user can click the access information displayed on the screen to allow the digital broadcast receiver to access the corresponding server. In addition, a specific picture or icon may be displayed for each server name included in the Internet service list. The user internet service mode request command may be input through a hot key on the remote controller, may be input through a virtual keypad or a virtual key on a virtual keyboard, and may be input through a specific menu displayed on a screen.

The display unit 316 outputs the content on the screen. In addition, the display unit 316 displays the image generated by the browser on the screen. In addition, the display unit 316 displays a graphical user interface for displaying weather information on a screen. The graphical user interface may be a widget or a gadget, may be a browser, and may be output through an OSD.

The service manager 320 controls a manager associated with a service such as a service delivery manager 306, a service discovery manager 324, a service control manager 326, and a metadata manager 328 and an IG-OITF client.

In addition, the service manager 320 creates a channel map of a general broadcast and selects a channel using the channel map according to a key input received from the user interface manager 319. The service manager 320 receives the service information of the channel from the data decoder 310 and sets the audio / video packet identifier (PID) of the selected channel to the demultiplexer 308.

The service manager 320 may also execute a browser to process the received service. The browser may display the service information and control the content to be played back. Browsers can also run generic applications, applications associated with specific content. In addition, the browser may process and display a web page provided by the server on the screen, and receive and display service information from the server. The service information may be provided in the form of a web page from the server.

The service discovery manager 324 provides information necessary to select a service provider that provides a service. Upon receiving a signal regarding channel selection from the service manager 320, the service discovery manager 324 uses the information to find a service.

The service control manager 326 is responsible for selecting and controlling a service. For example, if a user selects a live broadcasting service like the conventional broadcasting method, IGMP or RTSP is used. If a user selects a service such as VOD (Video On Demand), RTSP is used to select and control the service. Perform The RTSP protocol may provide a trick mode for real time streaming. In addition, the service control manager 326 may initialize and manage a session through the IMC gateway using an IP multimedia subsystem (IMS) or a session initiation protocol (SIP). The protocols are one embodiment, and other protocols may be used depending on implementation.

The metadata manager 328 manages metadata associated with a service and stores the metadata in the service information database unit 322.

The service information database unit 322 stores service information decoded by the data decoder 310, metadata managed by the metadata manager 328, and information necessary to select a service provider provided by the service discovery manager 324. . In addition, the service information database unit 322 may store setup data for the system.

The service information database unit 322 and the content database unit 330 may be implemented using nonvolatile memory (NVRAM) or flash memory, respectively, and are two logically separated areas on the same storage area. Can be implemented.

The content database unit 330 may store content controlled to be stored by a PVR manager (not shown). The PVR manager collects metadata related to the stored content and generates additional information (thumbnail images, etc.) used for user use.

4 is a diagram illustrating an embodiment of a search word input window.

Referring to FIG. 4, when a content search request command is input, the application manager 318 controls the search term input window 400 to be displayed. The content search request command may be input when a signal of a specific hot key of the remote controller is input or a menu displayed on the screen is clicked.

The search term input window 400 may include a search term input area 410 and content provider selection options 421, 423, 425, 427, and 429. The user may input a search word for searching for content through the button on the remote controller, the virtual keyboard, and the virtual keypad in the search word input area 401. In addition, the content provider selection options 421, 423, 425, 427, and 429 may be checked to select a content provider that wants to request a search. For example, when the content provider selection options 421, 423, and 429 are checked, a search may be requested to the content providers CP1, CP2, and CP5.

The search term input window 400 may further include a confirmation button (not shown) and a cancel button (not shown). When the confirmation button is clicked, the application manager 318 processes that the search word displayed in the search word input area 410 is input. When the cancel button is clicked, the application manager 318 processes that the search word is not input and controls the search word input window 400 to be removed from the screen.

When the search word is input, the application manager 318 generates a content search request message including the input search word. The application manager 318 controls the generated content search request message to be sent to the content provider. Herein, the content provider receiving the content search request message may be at least one content provider selected in the search word input window 400 or may be all content providers included in the Internet service list.

When the content search request message is received, the content provider searches based on a search word included in the received content search request message, generates a content list indicating the searched contents, and transmits the content list to the digital broadcast receiver 300.

The network interface unit 302 receives a content list transmitted by a content provider. When the content search request message is transmitted to the plurality of content providers, the network interface unit 302 may receive a content list from the plurality of content providers, respectively.

The application manager 318 controls the display of the received content list. If each content list is received from the plurality of content providers, the application manager 318 may combine the received content list and control to display the combined content list.

In addition, the application manager 318 may sort the received content list or the combined content list in ascending or descending order based on the priority information, and control the display of the sorted content list. The priority information may include at least one of user recommendation information, content price information, rental period information, image quality information, download count information, release date information, and download speed information. The user recommendation information may indicate a user recommendation degree, and the user recommendation degree may indicate the number of recommended users. The content price information may be a content purchase cost or a content rental fee. In addition, the rental period information indicates a rental period when the content is rented. In addition, the image quality information indicates whether the content is HD quality or SD image quality, the download count information indicates the number of downloaded contents, and the release date information indicates the date when the content is released by the corresponding content provider. The download speed information indicates a time taken to download the corresponding content. Accordingly, the user can easily find cheaper and higher quality contents among the same contents provided by different content providers.

5 is a diagram illustrating an embodiment of a screen on which a content list is displayed.

Referring to FIG. 5, the display unit 316 may display the content list 510 on the screen 500 according to a control signal output from the application manager 318.

The content list 510 includes a content provider item, a content title item, and a user recommendation information item. The content provider item may display the name of the content provider providing the content, the content title item may display the title of the content, and the user recommendation information item may display information indicating user recommendation for the content. Can be.

The content list 510 is sorted in descending order based on the current user recommendation information. Herein, when the user recommendation information 510 is clicked, the application manager 318 may control the content list to be sorted in ascending order. That is, when the user moves the pointer 501 to the user recommendation information 510 by using the spatial remote controller and the like, and clicks the user recommendation information 510 by using a selection key, the application manager 318 according to the user recommendation information. The content list can be arranged in descending or ascending order.

The user may select specific content on the content list 510 to request that the selected content be displayed, request to be downloaded, and purchase or rent it. The user may also cause the selected content to be displayed in a preview format. For example, when the user selects the content AA provided by the CP2, the content AA provided by the CP2 may be displayed or downloaded, and may be purchased or rented. Also, a preview of the content AA provided by the CP2 may be displayed.

6 illustrates another embodiment of a screen on which a content list is displayed.

Referring to FIG. 6, the application manager 318 may adjust an item of the displayed content list. The application manager 318 may display a pop-up menu or a separate icon on the screen 600 to allow the user to select an item of the displayed content list.

In FIG. 5, when the user selects to display the content price information item further, the application manager 318 controls the content list 610 including the content price information item to be displayed on the screen 600. Here, by default, the application manager 318 may arrange the content list in descending order according to the added content price information such as the content list 610.

In addition, the user may place the pointer 601 on the content price information 620 and click the selection key to arrange the content list in descending order from ascending order according to the content price information. In addition, when the pointer 601 is located at the content price information 620, the user may click the delete key to make the content price information item disappear.

7 is a flowchart illustrating a preferred embodiment of the method for providing content according to the present invention.

Referring to FIG. 7, the application manager 318 checks whether a content search request command has been received (S700). Here, the content search request command may be input through a menu displayed on the screen, or may be input through a hot key on the remote controller.

When the content search request command is received, the application manager 318 controls to display a search word input window (S705). The search term input window displayed here may be the search term input window shown in FIG. 4.

The application manager 318 checks whether a search word has been input (S710).

When a search word is input, the application manager 318 generates a content search request message including the input search word and controls the generated content search request message to be transmitted (S715). Here, the application manager 318 may control the content search request message to be transmitted to all content providers included in the internnet service list, and may control the content search request message to be transmitted to the content provider selected by the user.

The application manager 318 checks whether the content list has been transmitted (S720). Here, the content list indicates the searched content based on the search word included in the transmitted content search request message. If the content search request message is transmitted to the plurality of content providers, each content list may be received from each content provider.

The application manager 318 combines the received content list (S725). The content indicated by the combined content list may include the same content for each content provider.

The application manager 318 sorts the combined content list based on priority information (S730). The content list may be sorted in ascending order or in descending order according to the priority information. The priority information may include at least one of user recommendation information, content price information, rental period information, image quality information, download count information, release date information, and download speed information.

The application manager 318 may control the sorted content list to be displayed (S735). The displayed content list may be the content list 510 illustrated in FIG. 5 and the content list 610 illustrated in FIG. 6.

The application manager 318 checks whether specific content is selected among the contents indicated by the displayed content list (S740).

If the specific content is selected, the application manager 318 controls to display the selected content (S745).

The application manager 318 checks whether the displayed content has ended (S750). Here, the application manager 318 may receive the end signal from the content provider to check whether the content is terminated, determine the end time of the content through the total playing time of the content, and receive separate end time information to determine the content. Know when to end.

When the display of the content is finished, the application manager 318 automatically displays the content located next to the terminated content list on the displayed content list (S755).

The present invention can also be embodied as computer-readable codes on a computer-readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer apparatus is stored. Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may be implemented in the form of a carrier wave (for example, transmission via the Internet) . The computer-readable recording medium may also be distributed to networked computer devices so that computer readable code can be stored and executed in a distributed manner.

Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific preferred embodiments described above, and the present invention belongs to the present invention without departing from the gist of the present invention as claimed in the claims. Various modifications can be made by those skilled in the art, and such changes are within the scope of the claims.

Claims (6)

Transmitting a content search request message including a search word to a plurality of content providers;
Receiving content lists searched based on the search word from the plurality of content providers;
Combining the received content lists and sorting the combined content list based on priority information; And
And controlling the ordered list of contents to be displayed. The method of claim 1,
The priority information is,
And at least one of user recommendation information, content price information, rental period information, image quality information, download count information, release date information, and download speed information. The method of claim 1,
Receiving content from the content list;
Displaying the selected content; And
And when the display of the selected content is ended, automatically displaying the next content in the content list. A network interface unit configured to transmit a content search request message including a search word to a plurality of content providers and to receive content lists searched based on the search word from the plurality of content providers; And
And a control unit which combines the received content lists, sorts the combined content list based on priority information, and controls the sorted content list to be displayed. The method of claim 4, wherein
The priority information is,
And at least one of user recommendation information, content price information, rental period information, image quality information, download count information, release date information, and download speed information. The method of claim 4, wherein
The apparatus may further include a user interface configured to select content from the content list, wherein the controller controls to display the selected content, and when the display of the selected content is ended, controls to automatically display the next content in the content list. Digital broadcast receiver, characterized in that.

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