KR101657119B1 - A digital broadcast receiver and method for providing a search service - Google Patents

Abstract

A digital broadcast receiver and a search service providing method are disclosed. The display unit displays the contents on the screen. The interface unit receives a signal requesting a search service. The control unit controls the display unit to display at least one search word related to the content to be displayed corresponding to the input signal on the screen on which the content is displayed, and controls the display unit to display a search result based on the search word selected from the displayed search words.

Description

Technical Field [0001] The present invention relates to a digital broadcast receiver and a method for providing a search service,

The present invention relates to a digital broadcast receiver and a service providing method, and more particularly, to a digital broadcast receiver and a search service providing method that provide an information search function.

A broadcasting receiver transmits content produced by a broadcasting company through a radio wave transmission medium such as a terrestrial wave, a cable or a satellite broadcasting, and a user views the broadcasting through a receiver capable of receiving the transmission medium.

However, digital-based digital broadcasting technology has been developed and commercialized in existing analog broadcasting, so that it is possible to use real-time broadcasting, contents on demand (CoD), games, news It is possible to provide various types of content services to users.

An example of content service provision using the Internet network is IPTV (Internet Protocol TV). The IPTV refers to transmitting various information services, moving picture contents, broadcasting, etc. to an user's receiver using an Internet network. The Internet network can be implemented on various types of networks such as an optical fiber network, a coaxial cable network, a fiber to the home (FTTH), a telephone network, and a wireless network based on IP (Internet Protocol).

In the case of the service using the Internet network as described above, unlike general terrestrial broadcasting, bidirectionality can be added and the user can watch the content service he wants to watch at a convenient time.

When a variety of broadcasting services are provided, it is possible to provide information on the broadcasting service to the user of the broadcasting receiver, to set or request the broadcasting service, to set the display setting, audio setting, And an OSD (On-Screen Display) device for notifying the user of the information.

SUMMARY OF THE INVENTION The present invention provides a digital broadcasting receiver and a method of providing a search service in which a user can search for information.

According to another aspect of the present invention, there is provided a method of providing a search service, the method comprising: displaying content on a display screen; receiving a signal requesting a search service; Displaying at least one search word related to the content, selecting at least one search word among the displayed search words, and displaying a search result based on the selected search word.

Preferably, the search terms may be arranged and displayed in the form of a rotary plate.

Preferably, the search term may be displayed transparently so that an image of the content is displayed.

Preferably, the search service providing method may further include detecting an initial search word from metadata related to the content, and acquiring the search word based on the detected initial search word.

Preferably, the search term may be an associated search term of a predetermined ranking or more among related search terms provided by the search server.

Advantageously, displaying the search results may include displaying the search listings on the display screen, and displaying web pages associated with the search items selected based on the displayed search listings.

Preferably, the search listing may be displayed in a graphical user interface window that is displayed transparently so that an image of the content is displayed.

According to another aspect of the present invention, there is provided a digital broadcasting receiver including a display unit for displaying contents on a screen, an interface for receiving a signal requesting a search service, Controlling the display unit to display at least one search word related to the content, and controlling the display unit to display a search result based on the search word selected from the displayed search words.

Preferably, the search terms may be arranged and displayed in the form of a rotary plate.

Preferably, the search term may be displayed transparently so that an image of the content is displayed.

The control unit may detect an initial search word from the metadata related to the content and control the search word to be obtained based on the detected initial search word.

Preferably, the search term may be an associated search term of a predetermined ranking or more among related search terms provided by the search server.

Preferably, the control unit controls the display unit to display a search listing on the screen, and controls a web page associated with the search item selected based on the displayed search listing to be displayed.

Preferably, the search listing may be displayed in a graphical user interface window that is displayed transparently so that an image of the content is displayed.

According to the digital broadcast receiver and the search service providing method according to the present invention, since the search word related to the displayed content is provided, the user can search for information related to the displayed content without inputting a separate search word.

1 is a diagram schematically illustrating an IPTV system according to an embodiment of the present invention,
2 is a diagram illustrating a hierarchical structure for an IPTV content download service (CDS)
FIG. 3 is a diagram showing a configuration of a preferred embodiment of an information search system according to the present invention,
4 is a block diagram showing a configuration of a preferred embodiment of a digital broadcast receiver according to the present invention.
5 illustrates one embodiment of a screen in which associated query terms are displayed while content is being displayed,
6 illustrates an embodiment of a screen in which an associated query is displayed while content is being displayed;
7 illustrates one embodiment of a screen in which a particular associated query is selected from the displayed associated search terms,
8 is a view showing an embodiment of a screen displaying a search notification message,
9 is a view showing an embodiment of a screen in which a search list is displayed;
10 illustrates an embodiment of a screen on which a web page is displayed,
11 is a flowchart illustrating a method of providing a search service according to an exemplary embodiment of the present invention.
12 is a flowchart illustrating a method of providing an associated search term according to an exemplary embodiment of the present invention,
13 is a flowchart illustrating a method of displaying a search result according to an exemplary embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The configuration and operation of the present invention shown in the drawings and described by the drawings are described as at least one embodiment, and the technical idea of the present invention and its core configuration and operation are not limited thereby.

Although the terms used in the present invention have been selected in consideration of the functions of the present invention, it is possible to use general terms that are currently widely used, but this may vary depending on the intention or custom of a person skilled in the art or the emergence of new technology. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, it is to be understood that the term used in the present invention should be defined based on the meaning of the term rather than the name of the term, and on the contents of the present invention throughout.

A digital broadcast receiver means a broadcast receiver capable of receiving digital broadcasts transmitted as digital video and audio signals. Digital broadcasting refers to a broadcasting technology capable of bi-directional operation, reproduction and accumulation because it compresses and outputs a television signal in a digital form in which information signals are encoded and recorded unlike conventional analog broadcasting. Compared to analog broadcasting, such digital broadcasting is strong against noise and has a small data loss, and since it transmits separate error correction information, it is advantageous for error correction and provides a high resolution and clear screen. Also, unlike analog broadcasting, digital broadcasting can receive a broadcasting service from a broadcasting station and provide bidirectional service to provide information to a broadcasting station.

In the present invention, digital broadcasting is used not only for broadcasting through terrestrial, satellite, and cable but also for broadcasting transmitted through an Internet network. That is, digital broadcasting is defined as a concept including IP (Internet Protocol) broadcasting.

Also, in the present invention, a digital broadcast receiver includes a broadcast receiver capable of providing an Internet service to a viewer. Here, the Internet service includes communication services such as information services such as CoD (content's on demand) service, YouTube service, weather, news, local information and search, entertainment services such as games and karaoke, TV mail and TV SMS And the like can be provided through the Internet. Accordingly, the digital broadcast receiver in the present invention includes a network TV, a web TV, and a broadband TV. The broadcasting service may include an Internet service as well as a broadcasting service provided through terrestrial, satellite, and cable.

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

The server of the IPTV includes various servers such as a service discovery and selection server, a streaming server, a contents guide information server, a customer information server, a payment information server, ≪ / RTI >

Among the servers, the streaming server transmits moving picture data encoded by MPEG (Moving Picture Experts Group) 2, MPEG4, etc. stored in the server to a user via a network. A Real-Time Transport Protocol (RTP), an RTP Control Protocol (RTCP), or the like may be used as the protocol for the transmission.

When real-time streaming protocol (RTSP) is used, video stream reproduction may be controlled to a certain extent through a function called network trick play such as pause, replay, and stop . The protocols are examples and other real-time transmission protocols may be used according to embodiments.

The content guide information server is a server for providing information on the various contents provided. The content guide information is information corresponding to EPG (Electronic Program Guide) information and includes various kinds of information about the content. The content guide information server stores content guide information data and provides the stored data to a receiver.

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

The network system consists of internet based network and gateways. The Internet-based network may be based on IP, such as an optical fiber network, a coaxial cable network, a fiber to the home (FTTH) network, a telephone network, and a wireless network. The gateway can perform not only general data transmission but also multicast group management and quality of service (QoS) management using protocols such as Internet Group Management Protocol (IGMP).

An IPTV receiver is a receiver that receives data transmitted through the Internet and provides it to a user. The receiver includes an IPTV settop, a home net gateway, and an IPTV embedded TV.

In the case of a hybrid IPTV system, various contents of the Internet as well as various existing broadcast contents can be provided. In other words, it is possible to provide various broadcast contents such as terrestrial broadcast, cable broadcast, satellite broadcast, personal broadcast, etc., various Internet video contents, data contents other than video, and the like to users. The contents may be provided in real time or on demand depending on the request.

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

Referring to FIG. 1, 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. 1, a terrestrial broadcaster, a cable SO (System Operator) or a MSO (Multiple System Operator), a satellite broadcaster, an Internet broadcasting transmitter (Internet broadcaster).

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

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

As a means for protecting the content transmitted in the IPTV system, a conditional access and a content protection may be used. As an example of the above-described conditional access and content protection, a scheme such as a cable card (CableCARD) and a DCAS (Downloadable Conditional Access System) can be used.

2 is a diagram illustrating a hierarchical structure for a content download service (CDS) broadcast.

Referring to FIG. 2, a service provider transmits data contents for CDS to a digital broadcast receiver using a transmission protocol. The delivered CDS data contents are stored in the storage of the digital broadcast receiver. The stored CDS data contents can be executed by the user's request or the like. Here, the transmission protocol can be FLUTE (File Delivery over Unidirectional Transport) on the ALC / LCT over IP / UDP, DVB-STP, DVB data / object carousel, FTP (file transfer protocol) protocol, etc.) may be used. As the above-mentioned protocol, for example, other transmission protocols may be used.

If FLUTE is used as the transmission protocol, the presence or absence of the CDS service can be notified to the IPTV receiver through the service search and selection (SD & S), and the details about the contents can be recorded in the metadata of the TV Anytime format, Can be found through.

The CDS data contents may include various kinds of contents such as A / V contents, data contents, and game contents.

As described above, the digital broadcast receiver of the present invention can receive various contents and output the provided contents to the display screen according to the user's selection.

3 is a configuration diagram showing a configuration of a preferred embodiment of an information search system according to the present invention.

Referring to FIG. 3, the information search system 300 includes a metadata server 310, a search server 320, and a digital broadcast receiver 330. Here, the metadata server 310 may be a content provider and a service provider, and may be a content guide information server. Also, the search server 320 may be a portal server that provides a search service on the Internet.

The metadata server 310 provides metadata to the digital broadcast receiver 330. In providing the metadata, the metadata server 310 may transmit the metadata in a push method or a pull method. Here, the metadata includes EPG (Electronic Program Guide) data, ESG (Electronic Service Guide) data, and ECG (Eelctronic Cinema Guide) data. The metadata may also be service information.

The search server 320 provides an associated search term to the digital broadcast receiver 330. Associated search terms refer to search terms or similar search terms associated with the entered search terms. The search server 320 may provide the digital broadcast receiver 330 with an associated search term having a search ranking higher than a specific search ranking among the related search terms.

In addition, the search server 320 may include a URL (Uniform Resource Locator) such as the following example 1 in the form of an Open Web Application programming interface (API) so that the digital broadcast receiver 330 can receive an associated search word ). ≪ / RTI >

[Example 1]

static gchar * usrlRecmd = "http://openapi.broadcast.com/search?key=%s&query=%s&target=recmd&sort=sim"

When the digital broadcast receiver 330 sends the URL of Example 1 using the http protocol, the search server 320 transmits the result of the related search term to the digital broadcast receiver 330. Here, the result of the association query may be transmitted as a file described in at least one programming language of HyperText Markup Language (HTML), Extensible Markup Language (XML), Standard Generalized Markup Language (SGML), and Wireless Markup Language (WML).

The digital broadcast receiver 330 can receive the metadata in any one of unicasting, multicasting, and broadcasting. Also, the digital broadcast receiver 330 can receive the metadata together with the corresponding content, receive the metadata before receiving the content, and receive the metadata after receiving the content.

The digital broadcast receiver 330 may calculate an initial search term from the metadata associated with the displayed content. Here, the displayed contents may include broadcast contents, internet image contents, and data contents, and may be provided in real time or on demand.

For example, when the real-time broadcasting contents are being displayed, the digital broadcasting receiver 330 confirms the information associated with the displayed real-time broadcasting contents from the EPG data. Here, the information related to the real-time broadcast contents may be a title, a director, an actor, a photographing place, a photographing date, a step, a genre, a writer, summary information of a plot, and a broadcast schedule of the real-time broadcast contents. The digital broadcast receiver 330 extracts a keyword from the identified information and calculates an initial search word.

The digital broadcast receiver 330 may provide an initial search word extracted by the search server 320 to receive an associated search term. Here, the digital broadcast receiver 330 may fetch an associated search term using the http protocol. For example, in order to obtain an associated search term for the calculated initial search word, the digital broadcast receiver 330 inputs a user code as a key value in the URL of Example 1, inputs an initial search word calculated as a query value, To the search server 320 according to the http protocol.

4 is a block diagram illustrating a configuration of a digital broadcast receiver according to an exemplary embodiment of the present invention.

Referring to FIG. 4, the digital broadcast receiver 400 according to an embodiment of the present invention may include a tuner or the like to receive terrestrial broadcast, cable broadcast, and satellite broadcast. However, in the present invention, for convenience of description, a description will be made mainly of a process of processing content transmitted using the Internet network.

The digital broadcast receiver 400 includes a network interface 402, an IP manager 404, a service delivery manager 406, a demultiplexer 408, a data decoder 410, a decoder 412, a display unit 416, A manager 418, a service information database 422, a service discovery manager 424, a service control manager 426, a meta data manager 428, and a content database 430.

The network interface unit 402 receives packets received from the network and transmits the packets to the network. That is, the network interface unit 402 receives an IP packet for delivering a real-time broadcast service, an Internet service, and service information from a service providing server through a network. The broadcast data may include content, an update message indicating whether the content is updated, metadata, service information data, and software code. In addition, the service information may include service information for a real-time broadcast service and service information for an Internet service.

The IP manager 404 is responsible for delivering packets from the source to the destination for the packet received at the digital broadcast receiver 400 and the packet transmitted at the digital broadcast receiver 400. The IP manager 404 classifies the received packets so as to correspond to the appropriate protocols and transmits the packets classified as the service delivery manager 406, the service discovery manager 424, the service control manager 426, and the metadata manager 428 .

The service delivery manager 406 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 the real-time streaming data is transmitted using the RTP, the service delivery manager 406 parses the received data packet according to the RTP and transmits it to the demultiplexer 408 or controls the service manager 420 In the content database unit 430. [ The service delivery manager 406 controls the network reception information to be fed back to the server providing the service using the RTCP.

The demultiplexer 408 demultiplexes the received packets into audio, video, PSI (Program Specific Information) data, and transmits them to the decoder 412 and the data decoder 410, respectively.

The data decoder 410 decodes service information such as PSI (Program Specific Information). That is, the data decoder 410 receives and decodes a demultiplexed PSI section, a Program and Service Information Protocol (PSIP) section, a DVB-SI (Service Information) section and the like in the demultiplexer 408.

Also, the data decoder 410 decodes the received sections to create a database of service information, and stores the database related to the service information in the service information database unit 422.

The decoder 412 decodes the video data and the audio data received from the demultiplexer 408, and the decoded video and audio data is provided to the user through the display unit 416.

The application manager 418 manages the overall state of the digital broadcast receiver 400, provides a graphical user interface, and manages other managers. In addition, the application manager 418 may generate an initial query from the metadata associated with the content being displayed and the application manager 418 may control to transmit the initial query to the search server 320 to receive the associated query . In addition, the application manager 418 can control the received related search word to be displayed and to control the displayed result to be displayed based on the associated search term selected from among the displayed related search words. To this end, the application manager 418 includes a user interface manager 419 and a service manager 420.

The user interface manager 419 provides a graphical user interface (GUI) for a user using an on-screen display (OSD) or the like, receives a key input from a user, and performs a receiver operation according to the input. For example, when the user interface manager 419 receives a key input for selecting a service from a user, the user interface manager 419 transmits the key input signal to the service manager 420. The graphical user interface may include a widget window and a search window. The widget window is a screen displaying a service provided through the widget application, and the service provided by the widget application may be an internet service. Hereinafter, the service provided by the widget application is referred to as a widget service. The search window may be either an OSD (On Screen Display) window or an application window, and may be a display window displayed by an application provided by the content provider.

The user can input a specific request signal by selecting a specific area on the graphic user interface displayed on the screen by using the direction key, the confirmation key and the cancel key of the remote controller. For example, the user can select a search word displayed in the search window and input a search word selection signal.

The user interface manager 419 can receive a search service request signal, a search word selection signal, a search item selection signal, and a search function end signal from a remote controller or a space remote controller. Here, when the hot key of the remote controller or the space remote controller is depressed or the pointer displayed on the screen is located on the display for inputting the corresponding signal, the search service request signal, the search word selection signal, the search item selection signal, The selection keys of the remote control or the space remote control can be pressed and input. Also, when the pointer is positioned on the display for inputting the corresponding signal for a predetermined time or more, it can be regarded that the search service request signal, the search word selection signal, the search item selection signal, and the search function end signal are inputted. Also, when the display for inputting the corresponding signal is focused, a search service request signal, a search word selection signal, a search item selection signal, and a search function end signal can be inputted if a selection key of the remote controller or the space remote controller is pressed.

The information displayed on the graphic user interface may be stored in the content database unit 430, stored in the service information database unit 422, or received from the server.

The content database unit 430 may store authentication information for the Internet service list and the account of the server. Here, the Internet service list is a list including information on a content provider or a service provider that provides the Internet service. For example, the Internet service list may include at least one of a name of the server, connection information of the server, and guidance information on the service provided by the server. Here, the connection information of the server may be any one of an Internet address and a URL (Uniform Resource Locator).

The display unit 416 displays the contents on the screen. In addition, the display unit 416 can display the widget window and the search window on the image of the content, and can display the widget window and the search window in a transparent manner so that the image of the content located below the widget window and the search window can be displayed. The display unit 416 also displays the image generated by the browser on the screen.

The service manager 420 controls the manager associated with the service such as the service delivery manager 406, the service discovery manager 424, the service control manager 426 and the metadata manager 428 and the IG-OITF client.

The service manager 420 also 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 419. [ The service manager 420 receives the service information of the channel from the data decoder 410 and sets an audio / video PID (Packet Identifier) of the selected channel in the demultiplexer 408.

In addition, the service manager 420 controls the graphic user interface providing the service to be displayed on the screen.

The service manager 420 may also execute a browser to process the received service. The browser can display the service information on the screen, and can control the content to be reproduced. In addition, the browser can execute a general application, an application associated with a specific content. In addition, the browser can process the web page provided by the server and display it on the screen, and receive and display the service information from the server. Here, the service information can be provided in the form of a web page from the server.

The service discovery manager 424 provides the information necessary to select a service provider that provides the service. Upon receiving a signal regarding channel selection from the service manager 420, the service discovery manager 424 searches for the service using the information.

The service control manager 426 is responsible for selection and control of services. For example, when a user selects a service such as IGMP or RTSP when selecting a Live Broadcasting service such as an existing broadcasting method and selects a service such as VOD (Video On Demand), RTSP is used to select a service, control . The RTSP protocol may provide a trick mode for real-time streaming. Also, the service control manager 426 can initialize and manage a session through the IMC gateway using an IP Multimedia Subsystem (IMS) and a Session Initiation Protocol (SIP). The protocols are one embodiment, and other protocols may be used, depending on the implementation.

The metadata manager 428 manages the metadata associated with the service and stores the metadata in the service information database 422.

The service information database unit 422 stores the service information decoded by the data decoder 410, the metadata managed by the metadata manager 428, and information necessary for selecting a service provider provided by the service discovery manager 424 . The service information database unit 422 may store setup data and the like for the system.

The service information database unit 422 and the content database unit 430 may be implemented using a nonvolatile RAM (NVRAM) or a flash memory, respectively. The service information database unit 422 and the content database unit 430 may be logically divided into two areas Can be implemented.

The content database unit 430 may store content controlled by a PVR manager (not shown). The PVR manager collects metadata related to the stored content and generates additional information (thumbnail image, etc.) used for the user.

5 is a diagram illustrating an embodiment of a screen in which an associated query notice is displayed while content is being displayed.

Referring to FIG. 5, the application manager 418 displays an associated query notification 510 when an associated query is received from the server while content is being displayed. The related search term notification 510 may be displayed as an icon as shown in the screen 500. The application manager 418 may also display a message informing that an associated query has been received instead of an icon.

6 is a view illustrating an example of a screen in which an associated search word is displayed while content is being displayed.

Referring to FIG. 6, upon receiving the search service request signal, the application manager 418 displays an associated query selection indication 611 to 618 on the screen 600 for selecting an associated query. Here, the related search word selection marks 611 to 618 display the related search word. If the associated search term selection indication 617 is selected, the associated search term 'iris music video' displayed on the associated search term selection display 617 is selected.

As in the screen 600, the associated query selection marks 611 to 618 can be arranged and displayed in the form of a turntable. Further, the association term selection indication can be shifted in either the upward direction, the downward direction, the rightward direction, or the leftward direction according to the movement key signal. For example, when the associated search word selection indication moves up, the associated search term selection indication 611 disappears and the associated search term selection indication 612 is located at the position of the associated search term selection indication 611.

The associated query selection marks 611 to 618 may be displayed in the graphical user interface 610. The graphical user interface 610 may be any one of a widget window, an OSD window, and an application window, and the outer angle may be displayed in a circle as shown in FIG. Also, the graphical user interface 610 and the associated query selection marks 611 to 618 can be displayed transparently so that an image of the content displayed on the screen 600 is visible. Accordingly, the present invention can effectively present a search word to a user without interfering with a user's viewing of the image.

7 is a diagram illustrating an embodiment of a screen in which a specific associated query is selected from the displayed related search terms.

Referring to FIG. 7, an associated query selection indication 714 in which the focus is located on the screen 700 can be highlighted and displayed. Also, when the user enters a remote control direction key in the state where the focus is located in the related search word selection display 714, when the graphical user interface 710 rotates around the central axis in a circular form, the associated search term selection display in which the focus is located can be changed have. If the user inputs the upward direction key of the remote control, the graphical user interface 710 rotates upward, so that the focus is placed on the associated query selection indication 715. [ If the user inputs the downward direction key of the remote controller, the graphical user interface 710 rotates downward, and the focus is placed on the associated query selection mark 713 accordingly.

When the user presses a selection key on the remote controller in a state in which the associated search word selection display 714 is highlighted, a search word selection signal can be input. When a search word selection signal is input, the application manager 418 corresponds to the input search word selection signal It can be determined that the search word designated by the highlighted associated search word selection display 714 is selected.

8 is a view showing an embodiment of a screen displaying a search notification message.

Referring to FIG. 8, when the association query selection is completed, a message 810 displaying the selected search word may be displayed. Message 810 indicates that 'Akita Travel' and 'Lee Byung Hun' were selected as the related search terms.

When the user clicks the button 811, the search can be performed based on the selected related keywords 'travel Akita' and 'Lee Byung-hun'.

9 is a view showing an embodiment of a screen in which a search list is displayed.

9, upon successful receipt of a search result from the search server 320, the application manager 418 displays a graphical user interface 910 on the screen 900 that displays search results. Here, the graphical user interface 910 can be displayed transparently so that an image of the content displayed on the screen 900 can be seen. Accordingly, the user can view the search list without disturbing the displayed content.

The graphical user interface 910 displays a search listing. The displayed search list may include at least one search item. The search item may also be displayed as title or summary information of the retrieved content, and may be linked to a specific web page. In addition, the search items can be classified and displayed according to a specific classification. For example, the graphical user interface 910 can classify and display search items with 'Web', 'Cafe', and 'Blog', and confirm that the search item 911 belongs to the Web on the screen 900 have.

10 is a diagram showing an embodiment of a screen on which a web page is displayed.

Referring to FIG. 10, when a user selects any one of the search items displayed in the graphical user interface 910, a search item selection signal may be input. Also, when a search item selection signal is input, the display unit 416 may display a web browser 1010 displaying a web page associated with the selected search item. The web page associated with the selected search item may be a web page linked with the selected search item.

The web browser 1010 can be displayed on the full screen, displayed on a partial area of the screen, and displayed and scaled according to the user selection signal. The web browser 1010 may also be displayed concurrently with the graphical user interface 910. In such a case, whenever a search item displayed in the graphical user interface 910 is selected, a web page associated with the selected search item may be displayed in the web browser 1010. [

11 is a flowchart illustrating a method of providing a search service according to an exemplary embodiment of the present invention.

Referring to FIG. 11, the display unit 416 displays the content (S1100). Here, the displayed contents may include broadcast contents, internet image contents, and data contents, and may be provided in real time or on demand.

The application manager 418 checks whether a search service request signal is input (S1110).

When the search service request signal is input, the display unit 416 displays the search word (S1120). The search term may be an associated query received from search server 320. Also, the associated search term may be periodically received according to a preset time interval.

The application manager 418 checks whether at least one search term among the displayed search terms is selected (S1130).

If the search word is selected, the application manager 418 displays the search result (S1140).

12 is a flowchart illustrating a method of providing an associated search term according to an exemplary embodiment of the present invention.

Referring to FIG. 12, the network interface unit 402 receives metadata (S1200). Here, the metadata includes EPG (Electronic Program Guide) data, ESG (Electronic Service Guide) data, and ECG (Eelctronic Cinema Guide) data. The metadata may also be service information.

The application manager 418 calculates the basic keyword using the received metadata (S1205). Here, the application manager 418 can confirm the information associated with the specific content from the received metadata, and calculate the basic search term from the confirmed information. The information associated with the specific content may be a title, a director, an actor, a shooting location, a photographing date, a step, a genre, a writer, summary summary information of a specific content, and a broadcasting schedule.

The application manager 418 controls to transmit an associated query request message including the calculated basic query (S1210). Here, the application manager 418 may control the search request message to be transmitted based on the HTTP protocol, and the search request message may be the URL of Example 1. [

The application manager 418 confirms whether or not the associated query has been received (S1215). Here, the application manager 418 can confirm whether or not the related query is received based on the response code number returned from the search server 320. For example, if the response code number is 200, it can be confirmed that the associated keyword is received, and if the value is other than 200, it can be confirmed that the related keyword is not received.

If the associated search word is not received, the application manager 418 compares the number of requests with the maximum number of requests (S1220). Where the maximum number of requests can be determined by default and can be changed according to user commands. For example, if the maximum number of requests is set to 4, an associated search term may be requested up to three times.

If the requested number of times is not less than the maximum number of requests, the display unit 416 outputs a request failure message indicating that the associated keyword is not received (S1225).

If the number of requests is less than the maximum number of requests, step S1210 is performed again.

If an associated search term is received, the display unit 416 displays an associated search term notification (S1230). Here, the icon 510 shown in FIG. 5 may be displayed as an association query notification.

The application manager 418 checks whether a search service request signal is input (S1235). If the search service request signal is not input, step S1205 may be performed again after a delay for a predetermined period of time has elapsed.

When the search service request signal is input, the display unit 416 displays the related search term (S1240). Here, the display unit 416 may display the graphical user interface 610 shown in FIG.

The application manager 418 checks whether an associated search term is selected (S1245). Here, the user can select an associated search term according to the manner described above in FIG. If the associated search word is not selected, step S1205 may be performed again after a delay for a predetermined period of time has elapsed.

If an associated search term is selected, the display unit 416 displays the search result based on the selected associated search term (S1250). Before displaying the retrieved result, the display unit 416 may first display the message 810 shown in FIG.

13 is a flowchart illustrating a method of displaying a search result according to an exemplary embodiment of the present invention.

Referring to FIG. 13, the display unit 416 displays a search term (S1300). The search term displayed here may be an associated search term.

The application manager 418 confirms whether the search word is selected (S1305).

If a search word is selected, the application manager 418 requests a search based on the selected search word (S1310). The application manager 418 may control the transmission of a search request message including the selected search word and the search request message may be transmitted to the search server 320 based on the HTTP protocol. The search request message may be a URL.

The application manager 418 confirms whether or not the search result is received (S1315). Here, the application manager 418 can confirm whether or not the search result is received based on the response code number returned from the search server 320. [ For example, if the response code number is 200, it can be confirmed that the search result is received. If the response code number is other than 200, it can be confirmed that the search result is not received.

If the search result is not received, the application manager 418 compares the search number with the maximum search number (S1320).

If the search number is not smaller than the maximum search number, the display unit 416 displays a search failure message indicating that the search has failed (S1325). Here, the maximum number of search times can be set to a default value and can be changed according to a user command. For example, if the maximum number of searches is set to 4, the search may be requested up to three times.

If the search number is smaller than the maximum search number, step S1330 is performed.

If the search result is received, the display unit 416 displays the search list (S1330). Here, the display unit 416 may display the graphical user interface 910 shown in FIG.

The application manager 318 confirms whether the search item is selected (S1335).

If the search item is selected, the display unit 416 displays a web page associated with the selected search item (S1340). Here, the display unit 416 can display the web browser 1010 shown in FIG.

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.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation in the embodiment in which said invention is directed. It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims (14)

Claim 1 has been abandoned due to the setting registration fee. Displaying contents on a display screen;
Computing an initial query from metadata associated with the displayed content;
Transmitting the calculated initial search term to a search server;
Displaying a specific icon when receiving at least one search term corresponding to the transmitted initial search term from the search server;
Receiving a signal requesting a search service;
Displaying at least one search term associated with the content corresponding to the input signal on the display screen;
Selecting at least one search term among the displayed at least one search term; And
And displaying the retrieved result based on the selected at least one search word. Claim 2 has been abandoned due to the setting registration fee. The method according to claim 1,
Wherein the displayed at least one search term comprises:
And arranged and arranged in the form of a rotating plate. Claim 3 has been abandoned due to the setting registration fee. The method according to claim 1,
Wherein the displayed at least one search word is displayed transparently so that the image of the content is visible. Claim 4 has been abandoned due to the setting registration fee. The method according to claim 1,
Wherein the displayed at least one search term comprises:
And the search term is a search term obtained by the search server based on the calculated initial search term. Claim 5 has been abandoned due to the setting registration fee. The method according to claim 1,
Wherein the displayed at least one search term comprises:
Wherein the related search term is a related search term that is a predetermined rank or higher among the related search terms provided by the search server. Claim 6 has been abandoned due to the setting registration fee. The method according to claim 1,
The step of displaying the search result includes:
Displaying a search listing on the display screen; And
And displaying a web page associated with the selected search item based on the displayed search listing. Claim 7 has been abandoned due to the setting registration fee. The method according to claim 6,
Wherein the search listing is displayed in a graphical user interface window that is transparently displayed so that the image of the content is visible. A display unit for displaying contents on a screen;
A control unit for calculating an initial search term from metadata associated with the displayed content; And
And an interface unit transmitting the calculated initial search word to a search server,
Wherein,
When the at least one search word corresponding to the transmitted initial search word is received from the search server, controls the display unit to display a specific icon,
Controls an interface unit to receive a signal requesting a search service,
Controlling the display unit to display at least one search word related to the content corresponding to the input signal on the screen,
And controls the display unit to display a search result based on the selected at least one search term when at least one search term of the displayed at least one search term is selected. 9. The method of claim 8,
Wherein the displayed at least one search term comprises:
And arranged to be displayed in a rotating plate form. 9. The method of claim 8,
Wherein the displayed at least one search word is displayed transparently so that an image of the content is visible. 9. The method of claim 8,
Wherein the displayed at least one search term comprises:
And a search term obtained by the search server based on the calculated initial search term. 9. The method of claim 8,
Wherein the displayed at least one search term comprises:
Wherein the related search term is an associated search term having a rank higher than a predetermined rank among the related search terms provided by the search server. 9. The method of claim 8,
Wherein,
Wherein the control unit controls the display unit to display a search list based on the searched result on the screen and controls the display unit to display a web page associated with the selected search item based on the displayed search listing. 14. The method of claim 13,
Wherein the search listing is displayed on a graphical user interface window that is transparently displayed so that the image of the content is visible.

Images