KR20100028803A - System and method for pre-distributing user-preferred content - Google Patents

Abstract

PURPOSE: A system for prior distribution of preference contents and a method therefor are provided to easily watch the desired contents by correctly anticipating the preference contents through a flow factor and a fixing factor. CONSTITUTION: An information collecting part(2710) collects information of a user terminal and the information about contents. A preference prediction part(2720) adds a fixed preference score on a fixed factor. The preference prediction part adds the preference scores on a flow factor. The weighted value is reflected in the preference score. The preference prediction part is predicted by the preference of the contents according to a user. A contents table producing part(2730) produces lists of the preference contents.

Description

Preferred content distribution systems and methods {SYSTEM AND METHOD FOR PRE-DISTRIBUTING USER-PREFERRED CONTENT}

The present invention relates to a system and method for pre-distributing preferred content, and more particularly, to predict a user's preferred content based on a floating factor and a fixed factor, and to predict the predicted preferred content to a user terminal or a server close to the user terminal. A preferred content pre-distribution system and method for storing.

With the spread of the Internet and the development of digital broadcasting technology, the use of two-way broadcasting services provided by high-speed Internet networks is increasing.

Two-way broadcasting service is a service that provides information service, video contents, and broadcasting to two-way broadcasting receivers (eg, IPTV, DMB receivers, set-top boxes, etc.) using high-speed Internet. Various contents and additional services provided by the Internet such as home banking, online games, and MP3 can be provided.

A representative type of such a two-way broadcast service is an IPTV (Internet Protocol Television) service.

IPTV services include real-time broadcasting services provided by content producers and VOD (Video On Demand) services that provide desired contents at viewers' desired times. Therefore, the viewer of the IPTV service has a problem that it is difficult to select the content that they want to watch from the numerous types of content. Conventionally, in order to solve this problem, the viewer directly inputs the title or genre of the preferred content and provides the preferred content based on the input information. However, the viewers were inconvenient because they had to perform a separate operation in order to select their preferred content.

In addition, as the number of subscribers of the IPTV service rapidly increases and the capacity of the content provided to the user increases, the amount of content is greatly increased. On the other hand, since the network used by the IPTV service system is limited, it is difficult to provide content to viewers smoothly.

On the other hand, as the prior art, Korean Patent Publication No. 10-2005-0099404 discloses the invention named "broadcast program automatic storage method using PVR".

The prior art sets a predetermined area as a broadcast program automatic storage area among a storage area of a user terminal provided in a PVR and receives a broadcast program having content information corresponding to a predetermined program information predetermined by a user. The present invention relates to a technology for allowing a user to watch a stored broadcast program without having to check and select a desired broadcast program by storing the broadcast program in an automatic storage area.

However, since the above-described prior art does not automatically predict the user's preferred program, it is inconvenient for the user to directly input the user's favorite program using the program classification table.

Some embodiments of the present invention do not require a user to input preferred content separately in order to predict the preferred content, and a preferred content pre-distribution system and method for accurately predicting preferred content for each user using a floating factor and a fixed factor to provide.

In addition, an embodiment of the present invention provides a preferred content pre-distribution system and method that can store the predicted preferred content in advance in a user terminal or a local server close to the user terminal.

As a technical means for achieving the above-described technical problem, the first aspect of the present invention is an information collecting unit for collecting information about the content and viewing information of the user terminal, based on the collected information, fixed for a fixed factor A preference predicting unit for predicting the preference of the content for each user by assigning a preference score and assigning a preference score to the fluid factor by reflecting a weight set according to the value of the fluid factor, based on the predicted preference Providing a preferred content pre-distribution system including a content list generation unit for generating a list of preferred content to be provided with a preferred content providing unit for providing the generated content list or the preferred content included in the content list to the user terminal; Can be.

In addition, a second aspect of the present invention is a user terminal for storing preferred content, the user information collecting unit for collecting viewing information about viewing of the content, receiving a list of preferred content from the IPTV (Internet Protocol Television) operators And a controller for requesting the IPTV provider to provide the preferred content and a content storage unit for storing the preferred content provided from the IPTV provider in response to the request before being viewed in the user terminal. The IPTV operator gives a fixed preference score to a fixed factor based on the information about the viewing information and content, and assigns a preference score to the floating factor by reflecting a weight set according to the value of the floating factor. Based on predicted content preferences It can be configured to provide a user terminal.

In addition, according to a third aspect of the present invention, in the method for pre-distributing preferred content, collecting information on content and viewing information of a user terminal, and assigning a fixed preference score to a fixed factor based on the collected information. And predicting a preference of the content for each user by assigning a preference score reflecting a weight set according to the value of the fluid factor to the fluid factor, based on the predicted preference of the content to be provided to the user terminal. The method may include generating a list and providing the generated content list or the preferred content included in the content list to the user terminal.

According to the above-described problem solving means of the present invention, it is possible to easily watch the content desired by the user by accurately and elastically predicting the preferred content for each user by using a floating factor and a fixed factor, without requiring a separate input to the user do.

In addition, according to the above-described problem solving means of the present invention, by storing the preferred content in advance in the user terminal can reduce the load on the content providing system, the user can immediately view the preferred content stored in the user terminal.

In addition, according to one of the other problem solving means of the present invention, by storing the preferred content in a server close to the user terminal in advance to reduce the load on the IPTV service system when providing the content, the user can download and watch the content as soon as possible It can be effective.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is "connected" to another part, this includes not only "directly connected" but also "electrically connected" with another element in between. . In addition, when a part is said to "include" a certain component, which means that it may further include other components, except to exclude other components unless otherwise stated.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a detailed configuration diagram of an IPTV (Internet Protocol Television) service system according to an embodiment of the present invention.

As shown in FIG. 1, an IPTV service system according to an exemplary embodiment of the present invention includes a broadcaster 1000, an IPTV broadcast system 2000, a network network 3000, and a user terminal 4000.

In addition, the IPTV broadcasting system 2000 includes a baseband system 2100, a compression multiplexing system 2200, a conditional access system (CAS) 2300, a monitoring system 2400, and a media operation core. : MOC 2500, EPG (Electronic Program Guide) system 2600, content distribution system 2700, and transmission / reception system 2800.

The broadcaster 1000 serves to produce, edit, and change broadcast content and provide it to the IPTV broadcast system 2000. The broadcaster 1000 may include a program provider (PP), a terrestrial wave, or a content provider (CP). In addition, the broadcast content provided by the broadcaster 1000 may include existing broadcast content and rich content on the Internet.

The IPTV broadcasting system 2000 receives and manages broadcast content from the broadcaster 1000 and distributes content to the user terminal 4000 to provide broadcast / recording / playback services. The received broadcast content may include related additional information and an electronic program guide (EPG) for such additional information.

The IPTV broadcasting system 2000 includes EPG information (PSIP / PSI /) including a subscriber concentrator, a broadcast video and audio signal, data broadcasting data, and a program recommendation service menu through a router supporting a multicast routing protocol. SI information) can be transmitted to IP set-top boxes of multiple subscribers by multicasting.

The baseband system 2100 receives a Moving Picture Experts Group 2 (MPEG2) broadcast signal from an external program provider (PP), or an analog broadcast signal from terrestrial waves, and receives the received source broadcast signal from a serial digital interface (SDI). Converts to signals, synchronizes frames, distributes broadcast video and audio signals from multiple broadcast channels (e.g. 100 channels) via routine switcher, subtitle generator (CG) and automatic programming An automatic program controller (APC) may insert (at least one of an advertisement, a logo, or a subtitle) into the broadcast video and audio signal (signal editing and processing) and transmit the same to the compression multiplexing system 2200.

The SDI (Serial Digital Interface) signal is, for example, a digital signal standard having a transmission rate of 270 Mbps, and a composite digital video and four channels of digital audio signals may be mixed.

The baseband system 2100 basically converts and corrects a source signal received at a receiving device and a receiving device receiving a broadcast signal such as a program provider (PP), a terrestrial wave, etc. into an SDI signal, and synchronizes frames. Frame Synchronizer, Signal Splitter such as A / V Router that connects / concentrates all broadcasting signal channels for operation management, and Subtitles that edit and process signals by inserting advertisements, logos and subtitles into the SDI signals. It may include a character generator.

The compression multiplexing system 2200 uses an A / V encoder (A / V Encoder) for broadcasting video and audio signals (Video, Audio) received from the baseband system 2100 for each broadcasting channel (eg, 100 channels). ) To compress the SDI (Serial Digital Interface) video signal to H.264, and to compress the audio signal to MPEG-2 AAC to generate MPEG-2 TS (Transport Stream), and to compress compressed broadcast video and audio -2 after multiplexing data broadcasting data and EPG information (PSIP / PSI / SI information) generated by a data encoder and a PSI / SI generator together with the TS signal When the received MPEG-2 TS signal is used in the reception restriction technique, the TS-2 may be inputted to a scrambler, encrypted, and finally IP packetized to transmit an IP packetized TS (Transport Stream) broadcast signal.

Also, optionally, the reception restriction system 2300 may be used to prevent illegal viewing and illegal copying of program recommended content.

The reception restriction system 2300 performs encryption of the real-time channel and pre-encryption of the VOD content, and controls viewing authority so that only the authenticated user can use the channel and the content. In order to prevent illegal copying of IPTV contents, digital rights management (DRM) may be used instead of the reception restriction system 2300.

The monitoring system 2400 is a control system. The monitoring system 2400 may monitor a transmission failure of an A / V broadcast signal for IPTV broadcasting, a reception failure by monitoring a downlink of the IPTV IPTV broadcasting system 2000, and confirm a subtitle.

The media management system 2500 is a system for managing various business process information (program organization information, location information, contract information, product information, etc.) for operating a broadcasting business. The media management system 2500 may integrately manage information flow through organic coupling with each system in the center of the broadcasting center.

The media management system 2500 manages broadcast program organization information, content and media management information, contract information of a program provider (PP) and a content provider (CP), and product information, and manages each system in the center of a broadcasting center. Through organic integration, it can act as a coordinator to manage and manage the flow of information.

In addition, the media management system 2500 may include contract management, media and content metadata management, EPG information acquisition / management as broadcasting schedule information, and real-time broadcasting and VOD in terms of operation. It provides channel organization management, agent management, interworking with each sub-system, VOD catalog creation management, and various product management.In terms of analysis, marketing analysis reporting, delivery such as settlement of CP / CA and subscriber viewing propensity, etc. In terms of broadcasting transmission monitoring, video server transmission management and VOD subscriber authentication, transmission result recording / management for settlement with CP / CA, and data synchronization with each sub-system interworked.

The EPG system 2600 includes an EPG server and provides an electronic program guide (EPG) service to the user terminal 4000.

The content distribution system 2700 predicts preferred content for each user terminal 4000 and provides the predicted preferred content to the user terminal 4000 or a local server (not shown) close to the user terminal 4000. Do it. The detailed configuration of the content distribution system 2700 will be described later.

The transceiving system 2800 serves to transmit and receive information necessary for providing preferred content with the user terminal 4000.

The network 3000 receives the broadcast content from the IPTV broadcasting system 2000 and delivers the received broadcast content to the user terminal 4000. The network network 3000 includes a backbone network and an access network, and the access network includes Ethernet, xDSL (ADSL, VDSL), Hybrid Fiber Coaxial Ca (HFC), and Fiber To The Curb), and may be configured in any one topology of a fiber to the home (FTTH) structure.

The user terminal 4000 serves to provide user information to the IPTV broadcasting system 2000 and to receive and store preferred content from the IPTV broadcasting system 2000. The user terminal 4000 is an apparatus for using an Internet broadcasting service, and generally includes an IPTV, a set top box (STB), and a remote controller. IPTV outputs the broadcast content received from the IPTV broadcasting system 2000, and transmits the user response signal received through the remote control to the IPTV broadcasting system 2000 through the return channel of the set-top box. The user terminal may use any one of a TV with an IP STB or an IP set-top box (IP STB), a computer, a notebook, or a personal portable terminal connected to the user's TV. The detailed configuration of the user terminal 4000 will be described later.

Hereinafter, a detailed configuration of a content distribution system 2700 according to an embodiment of the present invention will be described with reference to FIG. 2.

2 is a detailed block diagram of a content distribution system 2700 according to an embodiment of the present invention.

As shown in FIG. 2, the content distribution system 2700 according to an embodiment of the present invention may include an information collector 2710, a preference predictor 2720, a content list generator 2730, and a preferred content provider ( 2740).

The information collector 2710 collects content information and user information necessary for the preference prediction, and provides the collected content information and the user information to the preference predictor 2720. Content information is information about the content, such as the genre of the content, whether the content is a series, the director who produced the content, the main actor in the content, whether the content is the latest, and whether the content is a recommendation, etc. Contains various information associated with the content. In addition, the content information may include license information of the content. The license information of the content is information on whether or not the IPTV broadcasting system 2000 can provide specific content, and the validity of the content license is, for example, whether the service period has started and whether the service period has passed. It can be judged by checking whether or not. In addition, the user information is information related to the viewing history of the user terminal 4000 and the user terminal 4000, the subscription product information of the user terminal 4000, the information of the content recently viewed on the user terminal 4000, the number of views, Viewing time information, viewing path information, and the like.

The information collecting unit 2710 may collect the user information by using log information of the user generated in the detailed procedure of the IPTV service providing the content to the user terminal 4000. In addition, when the user terminal 4000 collects user information, the information collection unit 2710 may receive the user information from the user terminal 4000.

The preference predictor 2720 uses the content information and the user information received from the information collector 2710 to predict the user's preferred content for each user. The preference predictor 2720 may define a fixed factor and a fluid factor by matching content information and user information, and predict the preference of the content by counting a preference score value for each content based on the fixed factor and the fluid factor.

The fixed factor is a factor to which a fixed score value is assigned when predicting user preference, and is matched with a specific menu of content (for example, whether the content is recommended content, free content, or adult content), and the like. As such, it simply contains information that can be judged as "yes / no". In addition, the fluid factor is a factor that changes according to a situation, and refers to a factor to which a fluid score value is assigned when predicting user preferences. For example, when the content is a series, the number of times of viewing the previous conference content and the content The number of times you watched other content of the same director for movie content, the number of times you watched another content of the lead actor of the content, or the number of times you watched other content of that genre if the content belongs to a certain genre, etc. It includes a factor that can be given a score by varying the weight according to the number of times.

The preference predictor 2720 may assign a fixed preference score value to the fixed factor according to the presence or absence of the fixed factor, and may assign a weight value to the flow factor according to a value corresponding to the flow factor. have. In addition, the IPTV service manager may set a score value and a weight value assigned to the fixed factor and the floating factor to arbitrary values.

For example, when "the content is a recommendation work" is a fixed factor, a preference score of 5 or 0 points may be given depending on whether it is a recommendation work. For example, when "the number of times of watching another content of the same director" is a flow factor, 5 points | pieces can be given to the said content if it is five times or less, and 10 points if it is five or more times.

For example, if Content A is a recommendation (5 points) and the user has watched 4 times (5 points) the user watched another content of the same director as Content A's director, 5 + 5 = 10 points for Content A. Can be given a preference score of. Also, if the user later watches the content A, the preference score of the content may be changed. For example, if Content B is a recommendation (five points) and Content A and Content B are the same director, then "the number of times the content A watched another content of the same director as Content B" is 5 due to viewing of Content A. Since it will be ten (10 points), a preference score of 5 + 10 = 15 points can be given to the content B.

Accordingly, the preference predictor 2720 may assign a differentiated weight value to the flow factor that changes according to the viewing history or the viewing situation of the user terminal 4000, and thus, the changing viewing of the user terminal 4000 may be performed. While reflecting the situation, it is possible to accurately predict the preference of content for each user terminal.

Meanwhile, even if the license information of the content is not valid or the license information of the content is valid, the preference predicting unit 2720 applies the preference to the content when the content is not included in the subscription product of the user terminal 4000. You may not expect it.

The content list generator 2730 creates a preferred content list and serves to provide the created preferred content list to the preferred content providing unit 2740 and the user terminal 4000. The content list generator 2730 creates a preferred content list for each user based on the content score score received from the preference predictor 2720 and uses the created preferred content list as the preferred content provider 2740 and the user terminal. 4000).

In addition, the content list generator 2730 may create a preferred content list in the order of the high preference score value, and check the available space for storing the preferred content among the storage space of the user terminal 4000 and the capacity of the preferred content. You can create a list of contents for reference.

The preferred content providing unit 2740 provides the preferred content to the user terminal 4000 or a local server (not shown) located close to the user terminal 4000 based on the preferred content list received from the content list generating unit 2730. It plays a role. Preferred content provided to the user terminal 4000 or the local server may be stored in a storage space of the user terminal 4000 and the local server, respectively.

If there is a storage space in the user terminal 4000, the preferred content providing unit 2740 may receive a storage request from the user terminal 4000 and provide the requested preferred content to the user terminal 4000. Alternatively, the preferred content providing unit 2740 is a place where the user terminal 4000 is located when there is no storage space in the user terminal 4000 or when there is insufficient space available to store the preferred content among the storage spaces in the user terminal 4000. May search for a local server near to and provide preferred content to the found local server. Therefore, even when the user terminal 4000 does not have enough storage space or lacks, the user can quickly download and view preferred content, and the IPTV service provider can efficiently manage network network resources.

Hereinafter, a detailed configuration of the user terminal 4000 according to an embodiment of the present invention will be described with reference to FIG. 3.

3 is a detailed configuration diagram of a user terminal 4000 according to an embodiment of the present invention.

As shown in FIG. 3, the user terminal 4000 according to an exemplary embodiment of the present invention includes a user information collecting unit 4010, a content storing unit 4020, a control unit 4030, and a transceiving unit 4040. .

The user information collecting unit 4010 collects user information related to the viewing history of the user terminal 4000 and the user terminal 4000, and provides the collected user information to the content distribution system 2700. The user information includes, for example, subscription product information of the user terminal 4000, information of content recently viewed on the user terminal 4000, view counts, viewing time information, viewing path information, and the like.

The content storage unit 4020 serves to receive and store preferred content from the content distribution system 2700. The user may separately set a space for storing preferred content among the storage spaces of the content storage unit 4020.

The controller 4030 periodically manages a storage space of the content storage unit 4020 and requests the content distribution system 2700 to provide preferred content. The controller 4030 receives the preferred content list from the content distribution system 2700, updates the storage space of the content storage unit 4020 based on the received preferred content list, and determines whether to store the preferred content, thereby distributing the content distribution system. In operation 2700, a request for providing preferred content may be requested.

The controller 4030 compares the preferred content list received from the content distribution system 2700 with the list of contents stored in the content storage unit 4020 to manage the storage space in the content storage unit 4020, and stores the content storage unit ( Contents not included in the preferred content list among the contents stored in the 4020 may be deleted from the content storage unit 4020.

In addition, the controller 4030 compares the preferred content list received from the content distribution system 2700 with a list of contents stored in the content storage unit 4020, and provides the preferred content not stored in the content storage unit 4020. The content distribution system 2700 may be requested to give. In contrast, when the content storage unit 4020 does not have enough space to store the preferred content, the controller 4030 may request the content distribution system 2700 to store the preferred content to a local server close to the user terminal 4000. .

On the other hand, if there is no content storage unit 4020 in the user terminal 4000, the content distribution system 2700 may request to store the preferred content to the local server close to the user terminal 4000 without comparing the content list. .

Therefore, even when the user terminal 4000 does not have enough storage space or lacks, the user can download preferred content quickly, and the IPTV service provider can efficiently manage network network resources.

The transceiver 4040 plays a role of transmitting and receiving information necessary for storing the preferred content with the content distribution system 2700.

Hereinafter, an example of a content preference prediction result table for each user according to an embodiment of the present invention will be described with reference to FIG. 4.

4 is an example of a content preference prediction result table for each user according to an embodiment of the present invention.

As shown in FIG. 4, the content preference prediction result table for each user according to an embodiment of the present invention includes a content field 40, a user field 42, and a score field 44.

In the content field 40, the title of the content for predicting the preference is recorded. In the user field 42, the ID of the user who receives the IPTV service or the ID of the user terminal is recorded. In addition, the score field 44 records the predicted preference score value for each content for each user.

Accordingly, the preference score value predicted by the preference predicting unit 2720 for each user and for each content is provided to the content list generating unit 2730 so that the content list generating unit 2730 can list the preferred contents for each user in the order of the highest score values. Can be generated.

Hereinafter, a method of predicting preference according to an embodiment of the present invention will be described with reference to FIG. 5.

5 is a detailed flowchart of a preference prediction method according to an embodiment of the present invention.

In step S500, the preference predictor 2720 determines whether a license of content for predicting a preference is valid. As a result of the determination (S500), if the license of the content is not valid, the user terminal 4000 ends without making a preference prediction. If the license of the content is valid, step S502 is performed.

Step S502 is a step of determining whether the content to predict the preference is the content included in the product subscribed to by the user terminal 4000. As a result of the determination (S502), if the content is not included in the subscribed product, the preference is not predicted for the corresponding content, and if included in the subscribed product, step S504 is performed.

Step S504 is a step of giving a basic score to the content.

Step S506 is a step of determining whether there is a fixed factor or a fluid factor associated with the content. As a result of the determination (S506), if the factor does not exist, the preference prediction is terminated, and if the factor exists, it is determined whether the factor is a floating factor (S508).

As a result of the determination (S508), in the case of the flow factor, the weight value differentiated according to the value corresponding to the flow factor is counted to the preference score of the content (S510), and the step S506 is repeated.

As a result of the determination (S508), if it is not a floating factor, a fixed score value corresponding to the fixed factor is counted in the preference score of the content (S512), and step S506 is repeated.

Accordingly, the preference predictor 2720 may accurately and accurately predict the preference of the content according to the viewing situation of the user terminal 4000 by using the fixed factor and the fluid factor.

Hereinafter, a method of storing preferred content according to an embodiment of the present invention will be described with reference to FIG. 6.

6 is a detailed flowchart of a method of storing preferred content according to an embodiment of the present invention.

Step S600 is a step of determining whether there is a storage space for storing the preferred content in the user terminal 4000. If there is no storage space, the preferred content is stored in a local server located close to the user terminal 4000 (S612). If there is a storage space, step S602 is performed.

In operation S602, a list of contents stored in the user terminal 4000 is compared with the list of preferred contents and the content is not stored in the user terminal 4000.

As a result of the determination (S602), when the content not included in the preferred content list is stored in the user terminal 4000, it is determined whether the user is watching the stored content (S604). If the user is watching the stored content, the user repeats step S602. If the user is not watching the stored content, the stored content is deleted (S606).

As a result of the determination (S602), if the content not in the preferred content list is not stored in the user terminal 4000, it is determined whether or not there is enough space for storing the preferred content (S608). If the storage space is sufficient, the preferred content is stored in the user terminal 4000 (S610). If the storage space is insufficient, the preferred content is requested to be stored in a local server located close to the user terminal 4000 (S612).

Therefore, the user can immediately watch the preferred content stored in the user terminal 4000, or receive and watch from a local server close to the user terminal 4000, whereby the user can quickly receive and watch the content, and the IPTV Service providers can efficiently manage the network.

One embodiment of the present invention can also be implemented in the form of a recording medium containing instructions executable by a computer, such as a program module executed by the computer. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. In addition, computer readable media may include both computer storage media and communication media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. 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 transmission mechanism, and includes any information delivery media.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

1 is a detailed configuration diagram of an IPTV service system according to an embodiment of the present invention.

2 is a detailed configuration diagram of a content distribution system according to an embodiment of the present invention.

3 is a detailed configuration diagram of a user terminal according to an embodiment of the present invention.

4 is an example of a content preference prediction result table for each user according to an embodiment of the present invention.

5 is a detailed flowchart of a method of predicting preference according to an embodiment of the present invention.

6 is a detailed flowchart of a method for storing preferred content according to an embodiment of the present invention.

* Explanation of symbols on the main parts of the drawings

2000: content distribution system 2710: information collector

2720: preference prediction unit 2730: content list generator

2740: preferred content provider 4000: user terminal

4010: user information collecting unit 4020: content storage unit

4030: control unit 4040: transceiver

Claims (13)

In the preferred content pre-distribution system, An information collection unit for collecting information about content and viewing information of a user terminal; Based on the collected information, a fixed preference score is assigned to a fixed factor, and a preference score reflecting a weight set according to a value of the floating factor is assigned to a floating factor, thereby predicting the preference of the content for each user. The preference prediction unit, A content list generator for generating a list of preferred contents to be provided to the user terminal based on the predicted preferences; Preferred content providing unit for providing the user terminal with the generated content list or the preferred content included in the content list Preferred content pre-distribution system comprising a. The method of claim 1, And the preferred content is pre-stored in the user terminal before being viewed in the user terminal. The method of claim 2, And the preferred content providing unit sequentially stores the preferred content in advance in a server close to the user terminal when the user terminal does not have enough space to store the preferred content. The method of claim 2, And the preference predicting unit determines whether a license of the content for predicting the preference is valid, and determines whether to predict the preference for the content. The method of claim 2, The fixed factor is a factor to which a score is given when it matches a specific attribute of the content, and the floating factor is a factor to which a score is applied based on a user's viewing history or distribution history of the content. Distribution system. In the user terminal for storing the preferred content, A user information collection unit that collects viewing information about viewing of content; A controller for receiving a list of preferred contents from an IPTV provider and requesting the IPTV provider to provide the preferred contents; A content storage unit for storing the preferred content provided from the IPTV provider in response to the request before being viewed in the user terminal; Including but not limited to: The list of the preferred content is the IPTV service provider gives a fixed preference score to the fixed factor based on the viewing information and the information about the content, and the preference factor reflecting the weight set according to the value of the floating factor for the floating factor. The user terminal is generated based on the preference of the content predicted for each user by assigning a score. The method of claim 6, The controller requests the IPTV operator to store the preferred content in a local server close to the user terminal when the storage space for storing the preferred content is insufficient. The method of claim 7, wherein The controller compares the content stored in the user terminal with the list of the received preferred content and deletes the content stored in the user terminal. In the method of pre-distributing preferred content, Collecting information about content and viewing information of a user terminal; Based on the collected information, a fixed preference score is assigned to a fixed factor, and a preference score reflecting a weight set according to a value of the floating factor is assigned to a floating factor, thereby predicting the preference of the content for each user. step, Generating a list of preferred contents to be provided to the user terminal based on the predicted preferences; and Providing the user terminal with the generated content list or preferred content included in the content list Preferred content pre-distribution method comprising a. The method of claim 9, And the preferred content provided to the user terminal is pre-stored in the user terminal before being viewed in the user terminal. The method of claim 10, The providing of the preferred content may include, in advance, sequentially providing the preferred content to a server close to the user terminal before the preferred content is viewed on the user terminal when the user terminal does not have enough space to store the preferred content. Preferred content pre-distribution method. The method of claim 11, The predicting of the preferences may include determining whether a license of the content for predicting the preferences is valid and determining whether to predict the preference for the contents. The method of claim 11, The fixed factor is a factor to which a score is given when it matches a specific attribute of the content, and the floating factor is a factor to which a score is applied based on a user's viewing history or distribution history of the content. Distribution method.

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