KR20110107007A - A digital broadcast receiver and method for searching information in the digital broadcast receiver - Google Patents

Abstract

Disclosed is an information retrieval method in a digital broadcast receiver. A method for retrieving information in a digital broadcasting receiver includes displaying at least one character selection mark for selecting a character on a screen of the digital broadcast receiver, selecting one character selection mark among the displayed at least one character selection mark. Receiving a signal to be displayed, and displaying, on the screen, a search word selection mark associated with a search word name including a character selected according to the received signal.

Description

A digital broadcast receiver and method for Searching information in the digital broadcast receiver}

The present invention relates to an information retrieval method in a digital broadcast receiver and a digital broadcast receiver, and more particularly, to an information retrieval method for performing information retrieval and providing retrieved information.

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 an information retrieval method in a digital broadcast receiver for easily selecting a search word associated with information to be searched by a user in the digital broadcast receiver.

According to an aspect of the present invention, there is provided a method for retrieving information in a digital broadcasting receiver, the method comprising: displaying at least one character selection display for selecting characters on a screen of the digital broadcasting receiver; Receiving a signal for selecting one character selection mark among at least one character selection mark, and displaying, on the screen, a search term selection mark associated with a search word name including a character selected according to the received signal; .

Preferably, the letter may include at least one of a consonant and two letters of the search word.

Preferably, the search word may include at least one of a local name, a news title, a content name, a content genre name, a recording name, a person name, and a trade name.

According to another aspect of the present invention, there is provided a digital broadcast receiver comprising: a display unit for displaying at least one character selection mark for selecting a character on a screen; one character of the at least one character selection mark; And a user interface unit for receiving a signal for selecting a selection display, and a control unit for displaying a search word selection display associated with a search word name including a character selected according to the received signal on the screen.

Preferably, the letter may include at least one of a consonant and two letters of the search word.

Preferably, the search word may include at least one of a local name, a news title, a content name, a content genre name, a recording name, a person name, and a trade name.

According to an information retrieval method in a digital broadcast receiver and a digital broadcast receiver according to the present invention, since a graphical user interface for selecting a search word is provided, the user can easily obtain desired information without directly inputting a specific search word. Have

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 illustrates an embodiment of a screen on which a graphical user interface is displayed;
5 is a flowchart illustrating a process of performing an embodiment of an information retrieval method according to the present invention;
6 illustrates another preferred embodiment of a screen displaying a graphical user interface, and
7 is a flowchart illustrating a process of performing another preferred embodiment of the information retrieval method 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 addition, in the present invention, the digital broadcast receiver includes a broadcast receiver capable of providing an Internet service to a viewer. 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, TV SMS (Short Message Service), etc. It means a service that can be provided through the Internet, such as a communication service. 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. As an example of service information for an Internet service, the network interface unit 302 may receive weather information.

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. For this purpose, 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, when the user interface manager 319 receives a key input for selecting a service from the user, the user interface manager 319 transmits the key input signal to the service manager 620.

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 select a virtual key and input a user ID and password, and the user interface manager 319 may perform user authentication based on the user ID and password input from the user.

The user interface manager 319 may receive a text selection signal, a search word selection signal, and a search word change signal from a remote controller or a space remote controller. Here, the letter selection signal, the search word selection signal, and the search word change signal are input by pressing a hot key of the remote control or the space remote control, or when the pointer displayed on the screen is positioned at the display for inputting the corresponding signal, the selection key of the remote control or the space remote control. Can be entered by pressing. In addition, when the pointer is positioned on the display for inputting the corresponding signal for a predetermined time or more, the character selection signal, the search word selection signal, and the search word change signal may be regarded as input. In addition, when a display for inputting a corresponding signal is focused, when a selection key of a remote controller or a spatial remote controller is pressed, a text selection signal, a search word selection signal, and a search word change signal may be input.

The information displayed on the graphical user interface may be stored in the content database unit 330, may be in the service information database unit 322, or may be received from a server.

The content database unit 330 allocates a content channel to content, determines index data corresponding to the content, and stores the index data in association with the allocated content channel information.

In addition, the content database unit 330 may store the authentication information for the Internet service list and the 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.

When the application manager 318 receives the user internet service request command, the application manager 318 connects to the server associated with the received user internet service request command and controls to display a screen for requesting authentication information about the account of the connected server. Here, when the user clicks the access information displayed on the screen, a user internet service request command may be input, and when the user clicks a picture or icon of the corresponding server displayed on the screen, the user internet service request command may be input. Can be entered.

When the application manager 318 receives an output command of the content channel from the user, the application manager 318 reads index data stored in the content database unit and outputs the content.

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 graphic user interface providing a search service 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.

In addition, the service manager 320 controls a graphic user interface that provides a search service to be displayed on a screen. When the service manager 320 receives the text selection signal from the user interface manager 319, the service manager 320 controls the display unit 316 to display a search word selection display associated with a search word having a initiality associated with the selected text selection display on the graphical user interface. . In addition, when the service manager 320 receives the search word selection signal from the user interface manager 319, the service manager 320 searches for information based on the search word associated with the selected search word selection indication based on the received search word selection signal, and the searched information is a graphic user. The display unit 316 is controlled to be displayed on the interface. Here, the service manager 320 may control the search request to be transmitted to the server instead of performing the direct search, and control to receive and display the search result retrieved from the server. In addition, when the service manager 320 receives a search word change signal from the user interface manager 319, the service manager 320 searches for information based on a search word associated with a search word selection indication selected based on the search word change signal, and controls the searched information to be displayed. .

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 screen displaying a graphical user interface according to the present invention.

Referring to FIG. 4, the graphical user interface 400 includes a first display area 410 that displays character selection marks 411-416 and a second display area 420 that displays search term selection marks 421-426. It includes. Here, the first display area 410 and the second display area 420 may be displayed together, and after the first display area 410 is displayed, the second display area 420 may be displayed. The search terms displayed on the search word selection marks 421 to 426 may correspond to a local name, a news title, a content name, a content genre name, a recording name, and a person name.

The letter selection display 411 to 416 may display a letter including at least one of a consonant and two letters of a search word. Here, the letter may be a consonant such as 'ㄱ', 'b', may be the first letter of a word such as 'ga', 'gy', and may be an acronym such as 'Asia-Pacific Economic Cooperation' (APEC). initial). The character selection marks 411 to 416 may be displayed in the order of the characters displayed on the character selection marks 411 to 416, and may be displayed regardless of the order of the characters. Also, the character selection displays 411 to 416 may display only the characters included in the search word, and may display all the letters of the language used by the user regardless of the search word.

 When the user inputs a character selection signal for selecting any one of the character selection marks 411 to 416, the search term indications 421 to 426 associated with the search word including the character indicated by the selected character selection mark are removed. 2 is displayed in the display area 420. Here, the characters indicated by the character selection marks 411 to 416 are characters displayed on the character selection marks 411 to 416. Also, the search word selection marks 421 to 426 may be sequentially displayed on the second display area 420 according to the order of the letters included in the associated search word.

For example, when a user inputs a character selection signal for selecting the character selection marks 411 to 416, the words 'Gangnam Health Center' and 'Gangnam' including the search word 'ㄱ' indicated by the selected character selection mark 411. The search term selection marks 421 to 426 associated with the hospital, the Gangnam St. Mary's Hospital, the Gangnam St. Mary's Ophthalmology, the Gangnam St. Mary's Hospital, and the Gangnam Orthopedics, respectively, are displayed in the second display area 420.

The user can input the letter selection signal by pressing a hot key of the remote control or the space remote control, and when the pointer 401 displayed on the screen is located at the letter selection display 411 to 416, pressing the selection key of the remote control or the space remote control The character selection signal may be input. In addition, when the pointer 401 is positioned on the character selection marks 411 to 416 for a predetermined time or more, the user may be regarded as inputting the character selection signal. Also, when the text selection displays 411 to 416 are focused, the user may input the text selection signal by pressing a selection key of the remote controller or the spatial remote controller.

When the user inputs a search word selection signal for selecting one of the search word selection marks 421 to 426, the searched information is displayed based on the search word associated with the selected search word indication. Here, the user inputs a search word selection signal by pressing a hot key of the remote control or the space remote control, or when the pointer 401 displayed on the screen is located at the search word selection marks 421 to 426, pressing the select key of the remote control or the space remote control to search the search word. A selection signal can be input. In addition, when the pointer 401 is positioned on the search word selection marks 421 to 426 for a predetermined time or more, the user may be regarded as inputting the search word selection signal. In addition, when the search word selection marks 421 to 426 are focused, the user may input the search word selection signal by pressing a selection key of the remote controller or the spatial remote controller.

In addition, the graphical user interface 400 may further include search word change displays 430 to 431. The search word change marks 430 to 431 may be displayed as text or a graphic such as a triangle or a rectangle. When the user inputs a search word change signal for selecting the search word change marks 430 to 431, the currently selected search word choice mark may be changed to another search word choice mark. When the search word change displays 430 to 431 are composed of a button 1 430 and a button 2 431 having an arrow shape, a process of changing a search word is performed as follows.

When the user inputs a search word change signal for selecting button 1 430 while the search word selection mark 423 associated with the search term 'Gangnam St. Mary's Hospital' is selected, the selected search word choice mark is a search term choice mark 423. Is changed to a search term selection mark 422 associated with the search term 'Gangnam Hospital' located at the top of the search term selection mark 423. In addition, when the user inputs a search word change signal for selecting button 2 (431), the selected search word selection mark may be matched with the search term 'Gangnam Momo' and 'located at the bottom of the search word selection mark (423) in the search word selection mark (423). The associated search term selection indication 424 changes.

Here, the user may input the search word change signal by pressing a hot key of the remote control or the space remote control, and when the pointer 401 displayed on the screen is located at the search word change marks 430 to 431, the change key of the remote control or the space remote control. Press to input the search word change signal. In addition, when the pointer 401 is positioned on the search word change display 430 to 431 for a predetermined time or more, the user may be regarded as inputting the search word change signal. In addition, when the corresponding search word change display 430 to 431 is focused, the user may input the search word change signal by pressing a change key of the remote controller or the space remote controller.

5 is a flowchart illustrating a preferred embodiment of an information retrieval method according to the present invention.

It is a flowchart shown.

Referring to FIG. 5, the display unit 316 displays a search word input window in operation S500. Here, the displayed search word input window may be the graphical user interface 400 illustrated in FIG. 4.

The application manager 318 checks whether a character is selected (S510). Here, the application manager 318 may confirm that a character is selected when a character selection signal for selecting any one of the character selection marks displayed on the search word input window is input. In addition, the application manager 318 may process that the character indicated by the selected character selection display is selected according to the character selection signal. The character selection signal may be input by pressing a hot key of the remote controller or the space remote controller or may be input by pressing a selection key of the remote controller or the space remote controller when the pointer displayed on the screen is positioned on the character selection display. In addition, when the pointer is positioned on the character selection display for a predetermined time or more, the character selection signal may be regarded as input. In addition, when the corresponding character selection display is focused, the selection key of the remote controller or the spatial remote controller may be pressed to input the character selection signal.

When a letter is selected, the display unit 316 displays a search word selection display associated with a search word including the selected letter (S520).

The application manager 318 checks whether a search word is selected (S530). Here, the application manager 318 may determine that the search word is selected when a search word selection signal for selecting any one of the displayed search word selection marks is input. In addition, the application manager 318 may process that the search word associated with the selected search word tanning display is selected according to the search word selection signal. The search word selection signal may be input by pressing a hot key of the remote controller or the space remote controller or may be input by pressing a selection key of the remote controller or the spatial remote controller when the pointer displayed on the screen is located on the search word selection display. In addition, when the pointer is positioned on the search word selection display for a predetermined time or more, the search word selection signal may be regarded as input. In addition, when the corresponding search word selection display is focused, the selection key of the remote controller or the space remote controller may be pressed to input the search word selection signal.

If the search word is selected, the application manager 318 searches for information based on the selected search word (S540). The searched information may include weather information, content information, recording information, news information, and EPG, may be information received from a server, or information directly input from a user. . The information about the content corresponds to the title of the content, the content and the thumbnail image, etc. The information on the recording may include the recording title, recording time, recording date, storage location and thumbnail image.

The application manager 318 may retrieve the information from the information stored in the content database 330 or the service information database 322. In addition, the application manager 318 may request a server to retrieve the information based on the search word, and control the network interface unit 302 to receive the information retrieved from the server. In addition, the application manager 318 may control the network interface unit 302 to receive the information stored in the server, and retrieve the information from the received information.

The display unit 316 displays the retrieved information (S550). The information retrieved may be displayed as text, displayed graphically, and displayed simultaneously in text and graphically.

The application manager 318 checks whether the search word has been changed (S560). Here, the application manager 318 may confirm that the search word is changed when a search word change signal for changing one of the search word selection marks displayed on the search word input window is input. In addition, the application manager 318 may process that the search word is changed to a search word associated with the selected search word selection indication according to the search word change signal. The search word change signal may be input by pressing a hot key of the remote controller or the space remote controller or may be input by pressing a selection key of the remote controller or the space remote controller when the pointer displayed on the screen is located on the search word change display. In addition, when the pointer is positioned on the search word change display for a preset time, the search word change signal may be regarded as input. In addition, when the corresponding search word change display is focused, the selection key of the remote controller or the space remote controller may be pressed to input the search word selection signal.

If the search term is changed, the application manager 318 searches for information based on the changed search term search term (S570). The searched information may include weather information, content information, recording information, news information, and EPG, may be information received from a server, or information directly input from a user. . The application manager 318 may retrieve the information from the information stored in the content database 330 or the service information database 322. In addition, the application manager 318 may request a server to retrieve the information based on the search word, and control the network interface unit 302 to receive the information retrieved from the server. In addition, the application manager 318 may control the network interface unit 302 to receive the information stored in the server, and retrieve the information from the received information.

The display unit 316 displays the retrieved information (S580). The information retrieved may be displayed as text, displayed graphically, and displayed simultaneously in text and graphically.

6 is another preferred embodiment of a screen displaying a graphical user interface;

It is a figure which shows an example.

Referring to FIG. 6, the graphical user interface 600 may include a first display area 610 displaying the character selection marks 611 and 612, a character display 620, and a search term selection marks 631 to 636. Two display areas 630. The first display area 610, the text display 620, and the second display area 630 may be displayed together. In addition, after the first display area 610 is displayed, the text display 620 and the second display area 630 may be displayed simultaneously, and may be sequentially displayed. The search words displayed on the search word selection marks 631 to 636 may correspond to a local name, a news title, a content name, a content genre name, a recording name, and a person name.

The character selection marks 611 and 612 may be displayed on the first display area 610 as a figure or text such as a triangle or a rectangle. When the user inputs a character selection signal for selecting the character selection marks 611 and 612, the currently selected character is toggled according to the selected character selection mark and the toggled character is displayed in the character display 620. Here, the letter may be at least one of the initial letter and the initial letter of the search word. That is, the letter can be a consonant such as 'a', 'b', can be the first letter of a word such as 'ga', 'gy', and can be an acronym such as 'Asia-Pacific Economic Cooperation'. It can be (initial).

When the character selection display 610 is composed of a button 1 611 and a button 2 612 which are arrow-shaped figures, a process of displaying a character on the character display 620 is performed as follows. When the user inputs a signal for selecting the button 1 611, the letter 'a', whose order is earlier than the currently displayed letter 'b', is displayed in the letter display 620, and the user selects the button 1 611. When the input of the signal to select is interrupted, the displayed character is retained in the character display 620 at the interruption. In addition, when the user inputs a signal for selecting the button 2 612, the letter 'c' and the letter 'ㄹ', which are later than the currently displayed letter 'b', are continuously displayed on the letter display 620. Stops inputting a signal to select button 2 612, the displayed character is retained in character display 620 when it is interrupted.

The user can input the character selection signal by pressing a hot key of the remote control or the space remote control, and when the pointer 601 displayed on the screen is located at the character selection marks 611 and 612, pressing the selection key of the remote control or the space remote control The character selection signal may be input. In addition, when the pointer 601 is positioned on the character selection marks 611 and 612 for a predetermined time or more, it may be considered that the user inputs the character selection signal. Also, when the character selection marks 611 and 612 are focused, the user may input the character selection signal by pressing a selection key of the remote controller or the spatial remote controller.

When the user inputs a character selection signal for selecting the character selection marks 611 and 612, search term indications 631 to 636 associated with the search word including the character selected according to the selected character selection indication are displayed in the second display area 630. Is displayed. The search word selection marks 631 to 636 may be sequentially displayed in the second display area 630 according to the order of the letters included in the associated search word.

For example, when a user inputs a character selection signal, the character display 620 displays 'n', which is a selected character according to the selected character selection marks 611 and 612, and 'Nai', which is a search term including 'b'. Search term selection marks 631 to 636 associated with ',' Nanacoco ',' Nara marketplace ',' Namdaemun market ',' Nurisu school 'and' Newcoa outlet ', respectively, are displayed in the second display area 630.

 When the user inputs a search word selection signal for selecting one of the search word selection marks 631 to 636, information searched for the search word associated with the selected search word display is displayed. Here, the user may input the search word selection signal by pressing a hot key of the remote control or the space remote control, and when the pointer 601 displayed on the screen is located at the search word selection marks 631 to 636, the user selects the selection key of the remote control or the space remote control. Press to input the search word selection signal. In addition, when the pointer 601 is positioned on the search word selection marks 631 to 636 for a predetermined time or more, the user may be regarded as inputting the search word selection signal. In addition, when the search word selection marks 631 to 636 are focused, the user may input the search word selection signal by pressing a selection key of the remote controller or the spatial remote controller.

In addition, the graphical user interface 600 may further include search word change indications 640 to 641. The search word change marks 640 to 641 may be displayed as text or a graphic such as a triangle or a rectangle. When the user inputs a search word change signal for selecting search word change marks 640 to 641, the currently selected search word choice mark may be changed to another search word choice mark. When the search word change displays 640 to 641 are composed of a button 1 640 and a button 2 641 having an arrow shape, the process of changing the search word is performed as follows.

When the user inputs a search word change signal for selecting button 1 640 while the search word selection mark 633 associated with the search term 'country market' is selected, the selected search word selection mark is displayed in the search word selection mark 633. The search term selection display 633 associated with the search word 'Nana Coco' located at the top of the search term selection display 633 is changed. In addition, when the user inputs a search word change signal for selecting button 2 641, the selected search word selection mark is associated with the search term 'Namdaemun Market' located at the bottom of the search word selection mark 633 in the search word selection mark 633. The search term selection display 634 changes.

The user can input the search word change signal by pressing a hot key of the remote control or the space remote control, and when the pointer 601 displayed on the screen is located at the search word change marks 640 to 641, pressing the change key of the remote control or the space remote control The search word change signal may be input. In addition, when the pointer 601 is positioned on the search word change display 640 to 641 for a predetermined time or more, the user may be regarded as inputting the search word change signal. In addition, when the corresponding search word change display 640 to 641 is focused, the user may input the search word change signal by pressing a change key of the remote controller or the space remote controller.

7 is a flowchart illustrating a process of another preferred embodiment of the information retrieval method.

Referring to FIG. 7, the display unit 316 displays a search word input window in operation S700. Here, the displayed search word input window may be the graphic user interface 600 illustrated in FIG. 6.

The application manager 318 checks whether the character is toggled (S710). Here, the application manager 318 may check that the text is toggled when a text selection signal for selecting one of the text selection displays displayed on the search word input window is input. In addition, the application manager 318 may process a character to be toggled according to the character selection signal. The character selection signal may be input by pressing a hot key of the remote controller or the space remote controller or may be input by pressing a selection key of the remote controller or the space remote controller when the pointer displayed on the screen is positioned on the character selection display. In addition, when the pointer is positioned on the character selection display for a predetermined time or more, the character selection signal may be regarded as input. In addition, when the corresponding character selection display is focused, the selection key of the remote controller or the spatial remote controller may be pressed to input the character selection signal.

If the character is toggled, the display unit 316 displays the toggled character (S720). Here, the display unit 316 may display the toggled text on the text display displayed on the search word input window.

In addition, the display unit 316 displays a search word selection display associated with a search word including a toggled character (S730). Here, the text display and the search word selection display may be displayed at the same time, or the search word selection display may be displayed after the text display is displayed.

 The application manager 318 checks whether a search word is selected (S740). Here, the application manager 318 may determine that the search word is selected when a search word selection signal for selecting any one of the displayed search word selection marks is input. In addition, the application manager 318 may process to select a search word associated with the selected search word selection indication according to the search word selection signal. The search word selection signal may be input by pressing a hot key of the remote controller or the space remote controller or may be input by pressing a selection key of the remote controller or the spatial remote controller when the pointer displayed on the screen is located on the search word selection display. In addition, when the pointer is positioned on the search word selection display for a predetermined time or more, the search word selection signal may be regarded as input. In addition, when the corresponding search word selection display is focused, the selection key of the remote controller or the space remote controller may be pressed to input the search word selection signal.

The application manager 318 searches for information based on the selected search word (S750). The information retrieved may include weather information, content information, recording information, news information, and EPG, may be information received from a server, or information directly input from a user. . The application manager 318 may retrieve the information from the information stored in the content database 330 or the service information database 322. In addition, the application manager 318 may request a server to retrieve the information based on the search word, and control the network interface unit 302 to receive the information retrieved from the server. In addition, the application manager 318 may control the network interface unit 302 to receive the information stored in the server, and retrieve the information from the received information.

The display unit 316 displays the retrieved information (S760). The information retrieved may be displayed as text, displayed graphically, and displayed simultaneously in text and graphically.

The application manager 318 checks whether the search word has been changed (S770). Here, the application manager 318 may confirm that the search word is changed when a search word change signal for changing one of the search word selection marks displayed on the search word input window is input. In addition, the application manager 318 may process that the search word is changed to a search word associated with the selected search word selection indication according to the search word change signal. The search word change signal may be input by pressing a hot key of the remote controller or the space remote controller or may be input by pressing a selection key of the remote controller or the space remote controller when the pointer displayed on the screen is located on the search word change display. In addition, when the pointer is positioned on the search word change display for a preset time, the search word change signal may be regarded as input. In addition, when the corresponding search word change display is focused, the selection key of the remote controller or the space remote controller may be pressed to input the search word selection signal.

The application manager 318 searches for information with the changed search word (S780). The information retrieved may include weather information, content information, recording information, news information, and EPG, may be information received from a server, or information directly input from a user. . The application manager 318 may retrieve the information from the information stored in the content database 330 or the service information database 322. In addition, the application manager 318 may request the server to retrieve the information based on the search word, and control the network interface unit 302 to receive the information retrieved from the server. In addition, the application manager 318 may control the network interface unit 302 to receive the information stored in the server, and retrieve the information from the received information.

The display unit 316 displays the retrieved information (S790). The information retrieved may be displayed as text, displayed graphically, and displayed simultaneously in text and graphically.

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 above-described specific preferred embodiments, 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)

A method for retrieving information in a digital broadcast receiver,
Displaying at least one character selection indication for selecting a character on a screen of the digital broadcast receiver;
Receiving a signal for selecting one of the at least one character selection mark; And
And displaying a search word selection indication associated with a search word name including a character selected according to the received signal, on the screen. The method of claim 1,
And the text includes at least one of a consonant and two letters of a search word. The method of claim 1,
The search word includes at least one of a local name, a news title, a content name, a content genre name, a recording name, a person name, and a trade name. A display unit for displaying at least one character selection display for selecting characters on a screen;
A user interface unit configured to receive a signal for selecting one of the at least one character selection mark; And
And a controller configured to display a search word selection indication associated with a search word name including a character selected according to the received signal on the screen. The method of claim 4, wherein
And the text includes at least one of a consonant and two letters of a search word. The method of claim 4, wherein
The search word includes at least one of a local name, a news title, a content name, a content genre name, a recording name, a person name, and a trade name.

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