JP4790779B2 - System and method for providing recommended keywords for interactive broadcasting terminal - Google Patents

Description

  The present invention relates to a recommended keyword providing system and method in an interactive broadcasting terminal, and more particularly, to a system and method for providing a recommended keyword reflecting a real-time search result of a search engine to an interactive broadcasting terminal.

  Recently, the boundary between broadcasting and data communication has almost disappeared, and interactive broadcasting services such as customized video service (VOD), data broadcasting, T-commerce, and IPTV (Internet Protocol Television) have been actively developed.

  Such interactive broadcasting simply exceeds the level of providing the same broadcast content to all users, reflects the viewer's request using the return channel, and provides the content directly selected by the viewer Is also possible.

  On the other hand, while various Internet services have been integrated into broadcasting, a search service, which is one of the most important Internet services, has become possible with broadcast receiving devices. For example, IPTV provides broadcast contents using an Internet IP-based network and provides various existing IP-based services in combination with broadcasting. In particular, there is still a great demand for a content-related keyword search that can immediately solve a viewer's question (request) on broadcast content.

  Recently, an electronic program guide (EPG) service that provides various broadcast program information has been commercialized, and a digital broadcast receiver such as a set top box (STB) After receiving the EPG information, the broadcast program information desired by the user can be easily retrieved by outputting it on the screen of an externally connected device such as a television.

  FIG. 1 is a diagram schematically illustrating a conventional system for searching for supplement information related to content.

  The first prior art (for example, Patent Document 1) discloses a configuration in which supplementary information related to a broadcast program received by a radio listener or a television viewer in real time is provided.

  The conventional broadcast program system shown in FIG. 1 includes a broadcast receiver 10, a user terminal 20, a broadcast station 30, a channel information server 40, and a web server 50.

  The broadcast receiver 10 receives broadcast content received from the broadcast station 30, and is a television, for example.

  The channel information server 40 provides URL information for supplementary information for each broadcast content broadcast from the broadcast station 30. When the viewer desires to search for supplementary information regarding the content currently being broadcast, the user terminal 20 is used to request URL information regarding the supplemental information from the channel information server 40.

  The channel information server 40 transmits the URL information by subject of the channel and broadcast program to the user terminal 20, and the user terminal 20 connects to the web server 50 using the received URL information by subject and searches for supplement information. Can do.

  FIG. 2 is a schematic configuration diagram of a general IPTV broadcast service system.

  As shown in FIG. 2, the general IPTV broadcast service system includes a broadcaster 60, an IPTV broadcast system 70, and a user terminal 80.

  The IPTV broadcast system 70 distributes the broadcast content, a storage server for storing the broadcast content, a control server for transmitting the broadcast content to the user terminal 80, and processing a user request signal input from the return channel. A distribution server or the like can be included.

  The IPTV broadcast system 70 manages program content provided from a content provider (CP) or broadcaster 60, and broadcasts / records / plays content in a stable environment through a CDN (Content Delivery Network) or the like. Service can be provided. At this time, the program content provided from the content provider or the broadcaster 60 may include related additional information.

  The user terminal 80 is a device for using the Internet broadcasting service, and generally includes an IPTV 81, a set top box 82, and a remote controller 83. The IPTV 81 outputs the broadcast content received from the IPTV broadcast system 70 and transmits the user request signal input by the remote controller 83 to the IPTV broadcast system 70 through the return channel of the set top box 82.

  On the other hand, the second prior art (for example, Patent Document 2) discloses an invention named “EPG-based data broadcasting system and method and recording medium storing the program source”.

  The second prior art relates to data broadcasting, constructs a broadcast program screening time, celebrity identity information, and merchandise information in a database, and configures and outputs the results searched by each search module in a data broadcasting carousel. The provided data is provided as entertainer information and product information selected by the viewer on the data channel.

  The third prior art (for example, Patent Document 3) discloses an invention named “Method and System for Searching Information Related to Television Programs”.

  The third prior art provides a connection to a website related to a program to be watched, and discloses a configuration for retrieving at least one information of text, audio, video and application from the website. Here, the website can be linked by using a method of selecting at least one of a tag, a search engine, and a website address from an electronic program guide (EPG) corresponding to the TV program being viewed. .

  The fourth prior art (for example, Patent Document 4) discloses an invention named “System and Method for Extending Broadcasted or Recorded Programs Using Information on the World Wide Web”.

  The fourth prior art selects a plurality of subjects related to a specific program, and sets a hyperlink that is located on one server among a plurality of servers that can be accessed by the user device with respect to the selected subjects. By doing so, a configuration for storing a program timing file is disclosed. Here, for each of the selected subjects, the hyperlink defines a time interval in the program and stores it in association with the time interval, so that the user device connected to the network is hyperlinked. It is disclosed that a destination address related to a link can be searched.

  Further, the fourth prior art discloses that even in the case of a recorded program, it is possible to retrieve information on the subject from a channel server that was broadcasting the program recorded using the universal time. ing.

  As described above, techniques for providing search for additional information and subject related to a program at a broadcasting terminal are disclosed in the first to fourth prior arts. However, in order to improve the convenience of search, A technique for generating and providing a recommended keyword related to the middle program is not disclosed.

Korean Patent Publication No. 2003-96362 Korean Patent Laid-Open No. 2002-00817 Korean Patent Laid-Open No. 2004-70129 Korean Patent Publication No. 2003-70145

  Therefore, in order to solve the above-described problems of the prior art, the present invention provides a recommended keyword related to the content being broadcast in real time, and thus allows the Internet to be used in an environment where input means are limited like a remote control. It is an object of the present invention to provide a recommended keyword providing system and method for an interactive broadcasting terminal that can be easily searched.

  Furthermore, an object of the present invention is to provide a search system and method for an interactive broadcast terminal that can utilize the integrated search function of a web server in the interactive broadcast terminal.

  A keyword search method according to a first aspect of the present invention is a method for searching for a keyword in an interactive broadcasting terminal, receiving a content from a content server and playing it, and receiving a recommended keyword related to the content And displaying, when a specific keyword is selected among the recommended keywords, transmitting the selected keyword to a search engine, and receiving and displaying a search result from the search engine The recommended keyword related to the content is based on a search log collected by the search engine.

  Here, the interactive broadcasting terminal additionally receives and displays a TV popular search word and a real-time general popular search word in addition to the recommended keyword related to the content, and searches using the keyword as a keyword. The function to make can be provided.

  The recommended keyword related to the content may be displayed in synchronization with the playback time of the content. In addition, the recommended keyword related to the content collects a search word from a group of prospective viewers during the broadcast time of the content, and the degree of association with the content among the collected search words is greater than or equal to a threshold value It can be generated by extracting a search word as the recommended keyword.

  A recommended keyword providing system according to a second aspect of the present invention is a system for providing a recommended keyword to an interactive broadcasting terminal, wherein a search log database that receives and stores search log data from a search engine, A recommended keyword generating unit that generates a recommended keyword related to specific content based on the stored search log data, and a recommended keyword related to the content in response to a request from the interactive broadcasting terminal. And a recommended keyword transmission unit for transmission.

  According to the present invention, it is possible to easily use the Internet even in a television environment in which restrictive input means such as a remote controller are used by providing recommended keywords for matters that viewers are wondering about or want to search. Can be searched.

  In addition to recommending keywords related to broadcast content to broadcast viewers, it is possible to present keywords suitable for the broadcast time zone and present keywords for useful information.

  In addition, by notifying broadcast viewers of the world's topics and TV topics, it is possible to assist broadcast viewers in understanding trends and knowing the thoughts of others.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily implement the present invention. The present invention can be implemented in various different forms and is not limited to the embodiments described herein. In the drawings, in order to clearly describe the present invention, parts not related to the description are omitted, and like parts are denoted by like reference numerals throughout the specification.

  Throughout the specification, when a part is “connected” to another part, this is not only “directly connected”, but also “electrical” with other elements in between. It is also included when it is connected to. In addition, when a part includes a component, this means that it does not exclude other components but can include other components unless otherwise stated. means.

  As used herein, the term “search word” refers to a word or combination of words that a user has searched with a search engine. In addition, the term “keyword” in the present specification means a word or a combination of words that may be related to specific content. Therefore, the “keyword” is selected from “search words” already searched.

  In the following, the present invention will be described using limited terms such as “IPTV”, but the present invention is not necessarily limited to this, and can be applied to all broadcasting systems capable of bidirectional communication. It will be readily understood by those skilled in the art.

  In an embodiment of the present invention, in order to easily perform an Internet search in an environment where a restrictive input means such as a remote controller is used, a search word related to a program, a popular search word related to a TV, and a general popular search word are stored. Provides an interface recommended in real time. As a result, recommended keywords in a plurality of categories such as program-related recommended keywords (content-specific recommended keywords), TV-related popular search words, and real-time general popular search words are displayed on the screen of the interactive broadcasting terminal. By selecting the recommended keyword using the above, the search result of the search engine can be inquired by the interactive broadcasting terminal.

  FIG. 3 is a diagram schematically illustrating an IPTV broadcast service system including a recommendation type search system according to an embodiment of the present invention.

  As shown in FIG. 3, an IPTV broadcast service system including a recommended search system according to an embodiment of the present invention includes a broadcaster 100, an IPTV broadcast system 1000, a recommended search system 200, a user terminal 300, and a web. Server 400 is included.

  The web server 400 is a portal site provided with a search engine, and when a plurality of users connect to the web server 400 and search for a search word related to a television program, the web server 400 uses such a search word log (search word log). (History) is transmitted to the search log database.

  Here, the Internet connects the web server 400 and the recommended search system 200, transmits broadcast content provided by the IPTV broadcast system 1000 to the set-top box 320 of the user terminal 300, and requests signals from the user terminal 300. Is an IP (Internet Protocol) network that uses a unicasting protocol or a multicast routing protocol for transmitting the message to the IPTV broadcasting system 1000.

  The IPTV broadcasting system 1000 includes a storage server for storing broadcast content, a return path server for processing user request signals (program recommendation request signal, additional information request signal, etc.) input from the return channel, and broadcast content. A distribution server for distributing can be included.

  The user terminal 300 is a device for using the Internet broadcast service, and generally includes an IPTV 310, a set top box 320, and a remote controller 330. The user terminal 300 plays the broadcast content received from the IPTV broadcast system 1000 and transmits the user request signal input by the remote controller 330 to the IPTV broadcast system 1000 through the return channel of the set top box 320.

  The user terminal 300 uses any one terminal of a television in which an IP set-top box is incorporated, or an IP set-top box, a desktop computer, a notebook computer, or a personal terminal connected to the user's television. be able to.

  The IP set top box (IP STB) is a hardware hierarchy composed of STB hardware such as a CPU, media processor, flash RAM, Ethernet module, etc., a system software hierarchy including system software such as a device driver and an operating system, Java Equipped with a virtual machine (Java Virtual Machine: JVM), a reception restriction system (Conditional Access System: CAS) module, a digital rights management (Digital Rights Management: DRM) interface module, and a streaming protocol (RTP, RTSP) MPEG2, MPEG4, MPEG7, H.M. H.264, WMV-9, and other multi-codecs, and includes four layers including an application layer including an electronic program guide (EPG) for selecting an IPTV service channel. At this time, the IP set top box of the subscriber may be assigned an IPv4 address or an IPv6 address.

  The recommendation type search system 200 provides a recommended keyword (recommended keyword for each content) related to the program being viewed to the user terminal 300, reflects a real-time search result in a search engine, and a popular search word for TV and a general popular search. Provide a word. At this time, the recommended keyword for each content can be extracted based on the search log and the program information, or can be generated by a recommended keyword generation method which will be described later with reference to FIG.

  In addition, the recommended search system 200 according to an embodiment of the present invention collects a search word pool for a program to be aired, and generates a recommended keyword predicted to be useful to the user from the search word pool. After that, when the user views the specific TV program, the user grasps the TV program being viewed and provides a recommended keyword related to the program, and the user selects the specific keyword among the recommended keywords. By selecting and performing a search, it is possible to save time and effort conventionally required to directly input a search word.

  FIG. 4 is a configuration diagram of a system for providing recommended keywords to an interactive broadcasting terminal according to an embodiment of the present invention.

  As shown in FIG. 4, a system 200 for providing recommended keywords to an interactive broadcasting terminal according to an embodiment of the present invention includes a search word collection database 210, a recommended keyword generation unit 220, a recommended keyword database 230, and A recommended keyword transmission unit 240 is included.

  The search word collection database 210 receives program information and organization table data (broadcast content program organization table data) from the broadcaster server 100, and receives and stores search log data and associated search words from the web server 400.

  The search word collection database 210 can include a search log DB 211, an associated search word DB 212, an organization table DB 213, and a program information DB 214.

  The search log DB 211 stores search log data provided from the web server 400, and the related search word DB 212 stores a related search word corresponding to a specific search word. The organization table DB 213 stores program organization table data provided from the broadcaster server 100, and the program information DB 214 stores program related information provided from the broadcaster server 100.

  The search word collection database 210 includes search log data received by the web server 400 as described above, an associated search word corresponding to a specific search word (for example, another search word searched by a user searching for a specific program, a specific As well as search words that overlap or continue with the program name), data directly input by broadcasters, program information collected in advance, caption / subtitle information transmitted simultaneously with the program, etc. The search word pool can be configured.

  The recommended keyword generation unit 220 generates a recommended keyword for each content based on any one or more of the search log DB 211, the associated search word DB 212, the organization table DB 213, and the program information DB 214, and the recommended keyword DB 226 for each content. The general popular search word in real time is extracted and stored in the general popular search word DB 227, and the popular search word related to the television is extracted and stored in the popular search word DB 228 of the television.

  The real-time general popular search word is extracted using a number of algorithms that are the same as or similar to the popular search word currently provided on Internet portal sites and the like.

  The TV popular search words are classified based on the program organization table data or program related information provided from the broadcaster server 100 among the search words received by the web server 400, Based on the number of searches, a popular TV search word can be extracted.

  Also, a method of classifying a search word received through a TV-related search path as a popular TV search word is possible. For example, out of the web pages provided by the web server 400, the number of searches is greater than or equal to a reference value among the search words received from TV-related web pages and the search words received from the user terminal 300 playing a TV program. A certain thing can be extracted as a popular search word of TV.

  A detailed method for generating content-specific recommended keywords will be described later with reference to FIG.

  In response to a request from the user terminal 300, the recommended keyword transmission unit 240 transmits a recommended keyword related to the content being played back by the user terminal 300, a popular TV search word or a real-time general popular search word to the user terminal 300. To do.

  The recommended keyword providing system 200 further includes a screen processing unit that processes the recommended keyword list (list) according to contents, the general popular search word list in real time, and the popular search word list of television into a screen format that can be output on the user terminal 300. Can be included. In contrast to this, the screen processing unit can be configured to exist in the user terminal 300. The screen processed by the screen processing unit will be described later with reference to FIGS.

  In other words, the recommendation type search system for IPTV broadcasting according to an embodiment of the present invention allows users to view what they want to know while watching TV by searching the Internet directly on the TV without using a PC or other media. It is possible to solve a matter that a person wonders or desires a search.

  On the other hand, FIG. 5 is a configuration diagram of a recommended keyword generation unit 220 that generates content-specific recommended keywords according to an embodiment of the present invention.

  As shown in FIG. 5, the recommended keyword generation unit 220 according to an embodiment of the present invention includes a viewer prediction extractor 221, a recommended keyword determination unit 223, a content-keyword time synchronization unit 225, a seed keyword DB 222, and viewing. The anticipation person DB 224 and the recommended keyword DB 226 classified by contents can be included.

  The recommended keyword generation unit 220 can operate in conjunction with the normal search engine 450. The recommended keyword generation unit 220 according to the embodiment of the present invention can use information in the search log DB 211 that stores a search query log transmitted to the search engine 450.

  When a broadcast program is played back on the user terminal 300, keyword search related to the broadcast program is statistically generated by the user terminal 300 before and after the broadcast time.

  Such a search query is received by the search engine 450, and in a normal search service system, a search word, a search time, and a user identification number are stored in the search log DB 211.

  The expected viewer extraction unit 221 operates in conjunction with the search engine 450 and the seed keyword DB 222.

  In the seed keyword DB 222, basic keywords related to a specific broadcast program, that is, seed keywords are stored in association with (matched with) a broadcast time zone. For example, the seed keyword is the name of the broadcast content or a modified word thereof. On the other hand, the seed keywords are divided into categories and stored with different weight values. For example, in the drama category, the first category may include a title and a cast name, and the second category may include an actor's name and production team. Here, the first category having a higher search probability may have a higher weight value than the second category.

  The viewer expectation extraction unit 221 investigates whether there is a corresponding seed keyword stored in the seed keyword (DB) among the search words received by the search engine 450 within a predetermined time before and after the broadcast time. The identification number of the user who has determined and searched for the seed keyword is extracted. A viewer corresponding to the extracted user identification number can be classified as an expected viewer. Here, only users who have searched for a seed keyword more than a predetermined number of times can be classified as viewers for the purpose of classifying viewers.

  When the search engine 450 provides a search word auto-completion function in the search window, a search word by the auto-completion function is included, and keywords provided by the search engine (for example, popular search word, recommended search word, actual search word, etc.) A user who selects and searches for a search word that has a rapid increase in time can be excluded from viewers.

  As described above, when a predicted viewer is extracted, the user identification number of the predicted viewer is stored in the predicted viewer DB 224. In the viewer expectation DB 224, a user identification number is stored in association with a specific broadcast content or a specific broadcast content series or group.

  The recommended keyword determination unit 223 refers to the viewer prediction DB 224 and collects search words searched by the viewer predictor during the broadcast time of the corresponding content. In addition, when the collected search words satisfy a predetermined condition, the recommended keyword determination unit 223 determines a search word that satisfies the condition as a keyword, and includes the search word in the keyword set. The predetermined condition may be that the degree of correlation with the corresponding content in the search word of the viewer who is expected to be viewed is equal to or higher than a predetermined threshold value.

  The recommended keyword determination unit 223 determines a keyword that satisfies the above-described condition as a recommended keyword for the corresponding content, and generates a keyword set for the corresponding content.

  The content-keyword time synchronization unit 225 performs a function of associating keywords included in the keyword set according to content playback time zones. For example, a keyword with a large ratio of each time slot is selected based on the number of searches for the keyword in each time slot every 60 seconds. Here, a predetermined inappropriate keyword can be filtered. For example, keywords that do not fit as keywords, such as live broadcasting, rebroadcasting, viewing, organization, and broadcast time, can be removed. The search log DB 211 also stores search time information for the keyword selected as the recommended keyword. Therefore, it is possible to synchronize the keywords included in the keyword set in association with each content playback time period.

  Finally, keywords matched by content are stored in the recommended keyword DB 226 by content. The data stored in the content-specific recommended keyword DB 226 stores recommended keywords that are synchronized for each content playback time zone. Therefore, when specific content is provided by various services, the keywords stored in the recommended keyword DB 226 for each content can be provided together as a separate file, and the viewer can view the content using this file. In addition, each recommended keyword synchronized with the content playback time can be used.

  The configuration and operation of the recommended keyword generation unit 220 as described above are for illustrative purposes, and content-specific recommended keywords can be generated by various other algorithms.

  On the other hand, FIGS. 6A to 6B are diagrams for explaining a television-related search log according to an embodiment of the present invention.

  FIG. 6A is a search log for a TV program from 21:40 to 22:40, in which the program broadcast time period is increased. The number of searches increases gradually before the program starts, the number of searches decreases after the program starts, and after the program ends. It shows that the number of searches increases significantly. Therefore, it can be seen that the web search pattern of the user is closely related to the actual broadcast time period, and the search is reduced depending on the degree of viewing concentration during viewing, and the search is concentrated immediately after viewing.

  FIG. 6B is an example of a search log for a specific program, and shows that the number of searches greatly increases at the moment when the title of the specific program is exposed to subtitles. FIG. 6C is a search log for “review”. Yes, it indicates that the search frequency for re-viewing the corresponding program is high immediately after the specific program ends. Therefore, it can be seen that the user searches immediately for information that is actively exposed, and the search time zone of the user changes depending on the characteristics of the keywords such as the exposure of subtitles and re-viewing.

  Therefore, the recommendation type search system according to the embodiment of the present invention can recommend a search word by configuring a search pool based on the search log described above.

  On the other hand, FIG. 7 is a diagram showing an example of the IPTV screen processed by the screen processing unit according to the embodiment of the present invention.

  As shown in FIG. 7, an IPTV screen 700 capable of selecting a recommended search word according to an embodiment of the present invention includes a program-related recommended keyword block 710, a TV popular search word block 720, and a real-time general word. A popular search word block 730, an associative search word block 740, a search window 750 for integrated search, a screen change button 760, and a program screen 770 being watched may be included, but is not limited thereto.

  The IPTV screen 700 shown in FIG. 7 provides a free link, has a lot of content exposed by saving button space, has a clear navigation, is highly usable, and is adapted to be familiar to users who are familiar with the Internet. It is the screen which was made.

  FIG. 8 is a diagram illustrating another example of the IPTV screen processed by the screen processing unit according to the embodiment of the present invention.

  As shown in FIG. 8, an IPTV screen 800 that can select recommended keywords according to an embodiment of the present invention includes a program additional information block 810, a TV popular search word block 820, a general popular search word block 830, A program-related recommended keyword block 840 and a search window 850 for integrated search may be included, but the present invention is not limited to this.

  The IPTV screen 800 shown in FIG. 8 is a form in which the program being viewed occupies the entire screen, and the screen configuration for searching is overlaid in the form of a lower bar.

  In FIG. 8, the integrated search window 850 is located at the center of the screen, but it can be located at the top, and the program additional information block 810 can be replaced with information other than star rating and synopsis. .

  In addition, when a search word is input to the integrated search window 850, a search word auto-completion function can be provided. When a specific keyword is selected in the program-related recommended keyword block 840, an integrated search for the selected keyword is performed. Results can be provided.

  FIG. 9 is a flowchart for explaining a method for performing a keyword search in an interactive broadcasting terminal according to an embodiment of the present invention.

  First, the interactive broadcasting terminal receives content from the content server or the IPTV broadcasting system 1000 and reproduces it (S910). Thereafter, the recommended keyword (recommended keyword for each content) related to the content being reproduced in step S910 is received from the recommended search system 200 and displayed (S920). As described above, the recommended keyword for each content can be displayed in synchronization with the reproduction time of the content.

  Moreover, the recommended keyword classified by content received as mentioned above is a keyword set produced | generated by the following methods, for example. First, a group of prospective viewers is extracted from users who have searched using a seed keyword including the title of the program of the content during the broadcast time of the content. After that, a search word input by the extracted group of prospective viewers to input during the airing time of the corresponding content is collected, and the degree of association with the corresponding content among the collected search words is a predetermined threshold value. The above search word is extracted as a recommended keyword related to the corresponding content.

  On the other hand, the interactive broadcasting terminal according to the embodiment of the present invention can receive and display not only the recommended keyword for each content but also the popular search word of the television (S922). In addition, a method of receiving and displaying a general popular search word in real time is also possible (S924).

  When the user selects a specific keyword from among the recommended keyword related to the content being viewed by the interactive broadcasting terminal, the TV popular search word, and the real-time general popular search word (S930), the interactive broadcasting terminal Transmits the keyword selected by the user to the search engine (S940). Thereafter, the interactive broadcasting terminal receives and displays the search result based on the transmitted keyword from the search engine (S950).

  Received search results can be displayed as an overlay on the screen of the content being played back, and can be configured to display the results of integrated search by category, similar to general Internet search engines. .

  One embodiment of the present invention can be realized in the form of a recording medium including an instruction word executable by a computer such as a program module executed by the computer. Computer-readable media is any media that can be accessed by a computer and includes all volatile and non-volatile media, separated and non-separated media. Also, computer readable media can include all computer storage media and communication media. A computer storage medium may be volatile and non-volatile, separable and non-volatile implemented in any method or technique for storing information such as computer readable instructions, data structures, program modules or other data. Includes all separation media. Communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media. .

  As mentioned above, although specific embodiment was described in detailed description of this invention, it can change variously within the range which does not deviate from the summary of this invention. Therefore, the scope of rights of the present invention should not be limited to the above-described embodiment, but should be determined based on the description of the scope of claims and equivalents thereof.

It is a figure which shows the conventional content related information search system schematically. 1 is a diagram schematically showing a general IPTV broadcast service system. FIG. It is a figure for demonstrating schematically the IPTV broadcast service system provided with the recommendation type | mold search system which concerns on one embodiment of this invention. 1 is a configuration diagram of a system for providing recommended keywords to an interactive broadcasting terminal according to an embodiment of the present invention. It is a block diagram of the recommendation keyword production | generation part which produces | generates the recommendation keyword classified by content which concerns on one embodiment of this invention. It is a figure for demonstrating the search log relevant to the television which concerns on one embodiment of this invention. It is a figure for demonstrating the search log relevant to the television which concerns on one embodiment of this invention. It is a figure for demonstrating the search log relevant to the television which concerns on one embodiment of this invention. It is a figure which shows an example of the IPTV screen processed by the screen process part which concerns on one embodiment of this invention. It is a figure which shows the other example of the IPTV screen processed by the screen process part which concerns on one embodiment of this invention. 5 is a flowchart for explaining a method for performing keyword search in an interactive broadcasting terminal according to an embodiment of the present invention.

Explanation of symbols

100 Broadcaster 200 Recommended Search System 300 User Terminal 400 Web Server 1000 IPTV Broadcast System 210 Search Word Collection Database 220 Recommended Keyword Generator 240 Recommended Keyword Transmitter

Claims (16)

A recommended keyword providing method for an interactive broadcasting terminal, the step executed by a computer comprising:
Receiving search log data from a search engine;
Generating a recommended keyword related to specific content based on the search log data;
Transmitting a recommended keyword for each content related to the content to the interactive broadcasting terminal in response to a request from the interactive broadcasting terminal,
The search log data includes a search word received by the search engine, a search time of the search word, and user identification information of a user who performed the search,
The step of generating the recommended keyword includes:
Based on the search log data, a user who has performed a search in the broadcast time zone of the content using the seed keyword set in advance as to the content as the search word is identified, and the identified user is assumed to be a viewer of the content A step of classification;
The search word input from the search log data by the classified viewer is input to the search engine, and the relevance of the search word to the content among the collected search words is greater than or equal to a predetermined threshold value. Generating a search word as the recommended keyword . A recommended keyword providing method comprising: Based on the stored search log data, generating a search word classified as a TV-related popular search word among search words received in real time by the search engine based on program information related to TV Including
Step, the recommendation of claim 1, wherein the transmitting the interactive broadcast terminal to the generated television related popular search word the content-specific recommended keyword is provided to be transmitted to the interactive broadcast terminal Keyword offer method. Generating a search word selected from search words received by the search engine in real time based on the stored search log data as a real-time general popular search word;
Step to claim 1 or 2, characterized in that to transmit real-time general popular search word said generated in the interactive broadcast terminal, wherein the content-specific recommended keyword is provided to be transmitted to the interactive broadcast terminal The recommended keyword provision method described. The method for providing a recommended keyword according to any one of claims 1 to 3 , wherein the step of generating the recommended keyword includes matching the generated recommended keyword according to a reproduction time zone of the content . The seed keyword, recommended keyword suggestion method according to one of claims 1 to 4, characterized in that including the name of said content. Transmitting a selected keyword to the search engine when a specific keyword is selected from the recommended keywords provided to the interactive broadcasting terminal;
Transmitting the search result received from the search engine to the interactive broadcasting terminal,
Transmitting said search results to said interactive broadcast terminal, according to claim, wherein the search results are the contents in the interactive broadcast terminal, characterized in that make display by overlaying (overlay) to the playback screen to be reproduced The recommended keyword providing method according to any one of 1 to 5 . 7. The step of generating the recommended keyword identifies a user who has performed a search a predetermined number of times or more using the seed keyword as a search word, and classifies the user as a viewer expectant. The recommended keyword provision method as described in one. A system for providing recommended keywords to interactive broadcasting terminals,
A search log database that receives and stores search log data from search engines;
A recommended keyword generating unit that generates a recommended keyword related to specific content based on the stored search log data;
See containing and a recommended keyword transmission unit for transmitting the content-specific recommendation keyword in the interactive broadcast terminal according to the content in response to a request from the interactive broadcast terminal,
The search log data includes a search word received by the search engine, a search time of the search word, and user identification information of a user who performed the search,
The recommended keyword generation unit includes:
Based on the search log data, a user who has performed a search in the broadcast time zone of the content using the seed keyword set in advance as to the content as the search word is identified, and the identified user is assumed to be a viewer of the content A prospective audience extractor to classify,
The search word input from the search log data by the classified viewer is input to the search engine, and the relevance of the search word to the content among the collected search words is greater than or equal to a predetermined threshold value. recommended keyword suggestion system and recommended keyword determining unit, the characterized containing Mukoto for generating a search word as the recommended keyword. The recommended keyword generation unit includes:
The system according to claim 8 , further comprising a time synchronization unit that matches the generated recommended keyword according to a playback time zone of the content. The recommended keyword providing system according to claim 8 , wherein the seed keyword includes a name of the content. 11. The viewer expectation extraction unit identifies a user who has performed a search a predetermined number of times or more using the seed keyword as a search word, and classifies the user as a viewer expectant. Recommended keyword system described in 1. The recommended keyword generation unit, on the basis of the stored search log data, TV related popular searches search words classified on the basis of the program information related to the television in the search word the search engine receives real-time generated as a word,
The said recommendation keyword transmission part transmits the produced | generated TV related popular search word to the said interactive broadcasting terminal in which the said recommendation keyword according to a content is provided, It is any one of Claim 8 to 11 characterized by the above-mentioned. The recommended keyword provision system described. The recommended keyword generation unit generates a search word selected from search words received by the search engine in real time based on the stored search log data as a real-time general popular search word ,
The recommended keyword transmission unit, any one of claims 8 12, characterized by transmitting real-time general popular search word the content-specific recommendation keyword is the product to the bidirectional broadcast terminals provided Recommended keyword provision system described in 1. A keyword transmission unit that transmits the selected keyword to the search engine when a specific keyword is selected from the recommended keywords provided to the interactive broadcasting terminal;
A search result providing unit that transmits the search result received from the search engine to the interactive broadcasting terminal, and
The search result providing unit displays the search result by overlaying on the playback screen on which the content is played back on the interactive broadcasting terminal. Recommended keyword provision system described in 1. A method of searching for a keyword on an interactive broadcasting terminal,
Receiving and playing content from a content server;
Receiving and displaying recommended keywords related to the content;
Transmitting a selected keyword to a search engine when a specific keyword is selected from the recommended keywords;
Receiving and displaying search results from the search engine,
The recommended keyword related to the content is generated based on search log data collected by the search engine,
The search log data includes a search word received by the search engine, a search time of the search word, and user identification information of a user who performed the search,
The recommended keyword related to the content is extracted from search log data of a user who has performed a search in a broadcast time zone of the content using a seed keyword set in advance as to the content as the search word. A keyword search method characterized in that the search word has a degree equal to or greater than a predetermined threshold value. A system for providing recommended keywords to interactive broadcasting terminals,
A recommended keyword generation unit that generates recommended keywords related to specific content based on search log data collected by a search engine;
A recommended keyword transmission unit for transmitting, to the interactive broadcasting terminal that reproduces the content received from a content server, a recommended keyword for each content related to the reproduced content to the interactive broadcasting terminal;
The search engine that receives selection information for a specific keyword among recommended keywords related to the content from the interactive broadcasting terminal, generates a search result for the selected recommended keyword, and provides the search result to the interactive broadcasting terminal; Including
The search log data includes a search word received by the search engine, a search time of the search word, and user identification information of a user who performed the search,
The recommended keyword generation unit includes:
Based on the search log data, a user who has performed a search in the broadcast time zone of the content using the seed keyword set in advance as to the content as the search word is identified, and the identified user is assumed to be a viewer of the content A prospective audience extractor to classify,
The search word input from the search log data by the classified viewer is input to the search engine, and the relevance of the search word to the content among the collected search words is greater than or equal to a predetermined threshold value. A recommended keyword providing system, comprising: a recommended keyword determination unit that generates a search word as the recommended keyword.