KR20140136752A - Method and apparatus for providing related service - Google Patents

Abstract

Disclosed are a method and a device for providing a related service. The method for providing a related service according to the present invention is a method for providing a related service by a service server connected to a broadcasting receiving terminal, which is set to be connected to a mobile terminal, through a network and comprises the steps of: (a) from a broadcasting receiving terminal, receiving related information about content which is transmitted from a mobile terminal to the broadcasting receiving terminal; (b) extracting related service information of the transmitted content using the related information about the content; and (c) transmitting the extracted related service information to the broadcasting receiving terminal.

Description

TECHNICAL FIELD The present invention relates to a method and apparatus for providing an associated service,

The present invention relates to a method and apparatus for providing an associated service, and more particularly, to a method and apparatus for providing various services associated with content executed in a mobile terminal connected to a broadcast receiving terminal.

In the past, only the one-way service has been provided in the past. However, as researches on digital broadcasting standards have been actively conducted recently, broadcasting signals including video, audio and data have been compressed into digital signals. And it is possible to provide an interactive broadcast service by increasing the network processing capacity.

Various services are provided due to the improvement of the performance of the set-top box or the TV itself and the increase of the network bandwidth, and in particular, a variety of on-demand programs according to the requests of users are provided as well as live programs provided from the past. Of course, in addition to such real-time or on-demand programs, various services such as games, shopping, and the like are being provided.

In recent years, various services are provided through connection between a TV and a portable terminal.

For example, when there is a request through a portable terminal of a user, a service for transmitting additional information (product information, heroine related information, etc.) to a broadcast program output from the TV is provided to the portable terminal.

However, the conventional service through the connection of the TV and the portable terminal merely provides the additional information related to the broadcast program as described above, and allows the user to interact with the portable terminal through the interaction between the TV and the portable terminal, We are not able to provide services that may be of interest.

In addition, a mirroring service is also provided for allowing contents to be played back on a portable terminal to be viewed on a TV.

However, the conventional mirroring service merely outputs an image reproduced in a mobile terminal through a TV, and fails to provide other services associated therewith.

According to an aspect of the present invention, there is provided a method for providing a service to a broadcast receiving terminal, the method comprising: And a method and apparatus for providing the same.

Other objects of the invention will be apparent to those skilled in the art from the following examples.

According to another aspect of the present invention, there is provided a method of providing an association service in a service server connected to a broadcast receiving terminal connected to a portable terminal through a network, the method comprising the steps of: (a) Receiving, from the portable terminal, related information about a content transmitted to the broadcasting terminal; (b) extracting related service information of the delivered content using related information about the content; And (c) transmitting the extracted associated service information to the broadcast receiving terminal.

The related service information may include at least one of related search information related to the transmitted content, an associated broadcast program list, and a recommended content list.

The portable terminal may mirror the screen data output on the screen to the broadcast receiving terminal and the related information about the content may include a captured image or audio for the content mirrored to the broadcast receiving terminal.

Analyzing at least one of a title, a related tag, a person, a location, an attribute, a genre, and a color of the mirrored content prior to the step (b) by analyzing the captured image or audio, and b) extracting the associated service information based on the analyzed result.

When the predetermined direction key is input, the broadcast receiving terminal may output an interface for at least one of the related search information, the related broadcast program list, and the recommended content list on the screen.

The interface for the associated search information may include an associated tag list of the mirrored content and a search word input window.

The interface for the associated broadcast program list may include a live program or an on-demand program associated with the mirrored content and provided by a broadcasting company.

The interface for the recommended content list may include content provided by a provider other than the broadcasting company in association with the content to be mirrored.

Each of the interfaces for the associated search information, the associated broadcast program list, and the recommended content list may be output with a predetermined transparency in a direction corresponding to the direction key.

The content-related information may include metadata previously input by the user of the portable terminal or registered in advance for the content to be mirrored.

Receiving a pairing request from the portable terminal and the broadcast receiving terminal prior to the step (a); Transmitting a password generated by the pairing request to the broadcast receiving terminal; And determining whether the password received from the portable terminal after the broadcasting terminal outputs the password matches the password transmitted to the broadcasting terminal, and completing the pairing.

According to another aspect of the present invention, there is provided a computer-readable recording medium on which a program for performing the above-described method is recorded.

According to another aspect of the present invention, there is provided a service server apparatus connected to a broadcast receiving terminal paired with a portable terminal through a network, the service server apparatus receiving content related information transmitted from the portable terminal to the broadcast receiving terminal ; And an associated service extracting unit for extracting related service information of the delivered content using the content related information, wherein the communication unit transmits the extracted related service information to the broadcasting terminal.

According to another aspect of the present invention, there is provided a broadcast receiving apparatus connected to a service terminal through a network, the broadcast receiving apparatus being connected to the service terminal through a network, the local broadcast communication unit receiving content from the portable terminal through local communication; A server communication unit for transmitting related service information including the delivered content related information to the service server according to a request of a user and receiving related service information for the delivered content from the service server; And an interface output unit outputting an interface for using an associated service by using the associated service information received from the service server.

According to the present invention, various services related to the content can be provided to the user through analysis of the content transmitted from the portable terminal to the broadcasting terminal.

1 is a diagram illustrating a configuration of an associated service providing system according to a preferred embodiment of the present invention;
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a service providing system, and more particularly,
3 is a diagram illustrating a detailed configuration of a service server according to an embodiment of the present invention;
FIG. 4 illustrates an authentication procedure for pairing according to a preferred embodiment of the present invention. FIG.
5 is a diagram illustrating a detailed configuration of a broadcast receiving terminal according to an embodiment of the present invention;
Figures 6 to 9 illustrate examples of associated services for content to be mirrored;
10 is a view showing a detailed configuration of a mobile terminal according to an embodiment of the present invention;

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

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

1 is a diagram illustrating a configuration of an associated service providing system according to a preferred embodiment of the present invention.

1, an associated content providing system according to the present invention may include a service server 100, a broadcast receiving terminal 102, and a portable terminal 104. [

The service server 100, the broadcast receiving terminal 102, and the portable terminal 104 are connected through a network, and the network may include a wired / wireless Internet network, a mobile communication network, and the like.

The service server 100 according to the present invention controls the connection setting with the broadcast receiving terminal 102 and the portable terminal 104 and controls the connection setting between the broadcast receiving terminal 102 and the portable terminal 104, 104 to the broadcast receiving terminal 102. The broadcast receiving terminal 102 receives the service related to the content transmitted from the broadcast receiving terminal 102.

According to the present invention, the connection between the broadcast receiving terminal 102 and the portable terminal 104 may be defined as a pairing, and the pairing may be based on a communication protocol such as Wi-Fi or Bluetooth.

The transfer of the content from the portable terminal 104 to the broadcast receiving terminal 102 can be performed by transmitting the screen data of the screen of the portable terminal 104 to the broadcast receiving terminal 102 in the above- and can be defined as mirroring.

Hereinafter, the broadcast receiving terminal 102 and the portable terminal 104 are paired based on Wi-Fi, and the service server 100 provides services associated with the mirrored contents.

The broadcast receiving terminal 102 may be a set-top box or a TV which receives and outputs a live program or an on-demand program transmitted by a broadcasting company. Further, the broadcast receiving terminal 102 according to the present invention may be a terminal paired with the portable terminal 104 according to the setting of the user.

In addition, the portable terminal 104 may include a mobile communication terminal and a touch pad as a terminal that can be paired with the broadcast receiving terminal 102, and an application that can be interlocked with the service server 100 is installed and executed.

According to a preferred embodiment of the present invention, the service server 100 controls pairing between the broadcast receiving terminal 102 and the portable terminal 104. At this time, the service server 100 transmits the authenticated broadcast receiving terminal 102, And the mobile terminal 104 can be paired with each other.

The authentication process can be performed through a One Time Password, which will be described in detail later.

After the pairing is completed, the content executed in the portable terminal 104 is mirrored to the broadcast receiving terminal 102. [

In a situation where the content executed in the mobile terminal 104 is mirrored to the broadcast receiving terminal 102, the service server 100 according to the present invention provides a service related to the content to be mirrored when a user requests the service.

The provision of the associated service may be initiated by an associated service request through the portable terminal 104 or a remote controller (not shown).

The related service according to the present invention may include a search service related to the content being mirrored, an associated broadcast program list providing service, a recommended content list providing service, and the like.

According to an embodiment of the present invention, when requesting an associated service by a user, the service server 100 receives content related information currently being mirrored from the broadcast receiving terminal 102.

Here, the content-related information may be a captured image and audio of the image when the content is a still image or a moving image.

The service server 100 may identify the captured image or audio content through image analysis and audio analysis, and provide an associated service corresponding thereto.

However, the present invention is not limited to this, and the portable terminal 104 may transmit meta data of the mirrored content to the broadcast receiving terminal 102. At this time, the content related information transmitted to the service server 100 may be the metadata have.

The meta data may include a title, a main character, a plot, and the like when the content to be mirrored is a broadcast program. In the case of a personal video (for example, a marriage video, a game video, Tag information (video subject, place, etc.).

The broadcast receiving terminal 102 transmits metadata provided by the portable terminal 104 to the service server 100, and the service server 100 provides a service associated with the metadata.

Preferably, the service server 100 may receive meta data from the portable terminal 104. [

The service server 100 according to the present invention may provide related service information including a keyword, a broadcast program list, and an associated content list extracted through image / audio analysis or metadata to the broadcast receiving terminal 102 To the broadcast receiving terminal 102.

2 is a diagram illustrating an exemplary screen of an interface output by a broadcasting terminal for providing an associated service according to a preferred embodiment of the present invention.

As shown in FIG. 2, the broadcast receiving terminal 102 according to the present invention may receive the associated service information and output an interface corresponding to the selected direction key when there is a predetermined direction key selection by the user.

Hereinafter, the configuration of the service server 100, the broadcast receiving terminal 102, and the portable terminal 104 according to the present invention will be described in detail with reference to the drawings.

3 is a diagram illustrating a detailed configuration of a service server 100 according to an embodiment of the present invention.

3, the service server 100 according to the present invention may include a communication unit 300, an authentication processing unit 302, a content analysis unit 304, and an associated service extraction unit 306.

The communication unit 300 receives a pairing request from the broadcast receiving terminal 102 and the portable terminal 104 and the authentication processing unit 302 performs an authentication procedure between the broadcast receiving terminal 102 and the portable terminal 104 upon receiving the pairing request .

4 is a diagram illustrating an authentication procedure for pairing according to a preferred embodiment of the present invention.

Referring to FIG. 4, the user executes an application for connection with the service server 100 according to the present invention through the portable terminal 104 (step 400). After the application is executed, the portable terminal 104 searches for and outputs a broadcast receiving terminal belonging to the same network as the Wi-Fi to which the portable terminal 104 is connected (step 402).

In FIG. 4, it is assumed that the broadcast receiving terminal is a set-top box (STB).

The user selects one of the broadcast receiving terminals output from the portable terminal 104 to request a pairing (step 404), and a pairing request is transmitted to the service server 100 (step 406).

The pairing request may include identification information (e.g., MAC address) of the broadcast receiving terminal.

In order to pair with the portable terminal 102, the user executes a function for connecting with the service server 100 on the broadcast receiving terminal 102 (step 408) And outputs an interface for adding a portable terminal (step 410).

When the user selects to add a peripheral mobile terminal, the broadcast receiving terminal 102 transmits a pairing request to the service server 100 (step 412).

The authentication processing unit 302 according to the present invention generates a password for authentication processing. Preferably, the password may be a One Time Password randomly generated in a predetermined time period.

The generated password is transmitted to the broadcast receiving terminal 102 selected by the portable terminal 104 through the communication unit 300 (step 414), and the broadcast receiving terminal 102 outputs the received password (step 416).

When the user confirms the password output by the broadcast receiving terminal 102 and inputs the password to the portable terminal 104 (step 418), the password input to the portable terminal 104 is transmitted to the service server 100 Step 420).

The authentication processing unit 302 of the service server 100 determines whether or not the password transmitted to the broadcast receiving terminal 102 matches the password received from the portable terminal 104. If the passwords match, The authentication completion message is transmitted to the broadcast receiving terminal 102 and the portable terminal 104 to complete the pairing (step 422).

After the pairing is completed, the screen data output from the portable terminal 104 is mirrored to the broadcast receiving terminal 102 (step 424).

3, when a user requests an associated service for a content to be mirrored through a remote controller or the like, the content analyzing unit 304 analyzes the content to be mirrored transmitted from the broadcast receiving terminal 102 Analyze related information.

Here, the content-related information may be a captured image or audio for the content to be mirrored.

The content analyzer 304 interoperates with a database (not shown) storing various images and audio to identify the content corresponding to the captured image or audio.

A title, a related tag, a person, a place (a city, a beach, a country, a region, and the like), a property (a movie, a broadcast program, a music video etc.), a genre and a color Can be analyzed.

The identification process by the content analyzer 304 can be implemented by a conventional moving image search engine, which is well known to those of ordinary skill in the art, and thus a detailed description thereof will be omitted.

The related service extracting unit 306 extracts an associated service corresponding to the content to be mirrored based on the analysis result of the content analyzing unit 304. [

As described above, the related service according to the present invention may include a search service related to the content being mirrored, an associated broadcast program list providing service, and an associated content list providing service.

The associated service extracting unit 306 extracts related tag information, an associated broadcast program list, and an associated content list associated with the content to be mirrored, and the extracted related service information is transmitted to the broadcast receiving terminal 102 through the communication unit 300 .

The associated service extracting unit 306 can extract an associated broadcast program list by referring to schedule information (EPG) of a broadcast program, and can extract an associated content list by interworking with OTT providers.

The broadcast receiving terminal 102 uses the associated service information received from the service server 100 so that the user can access the service associated with the currently mirrored content.

The related service extracting unit 306 extracts the related service using the analysis result by the content analyzing unit 304. However, the broadcasting receiving terminal 102 or the portable terminal 104 may extract the related service In this case, the related service extracting unit 306 may perform the related service extracting process using the metadata without the content analyzing process.

In the above description, the service server 100 identifies the content to be mirrored and transmits the corresponding service information corresponding to the identified service to the broadcasting terminal 102.

However, the present invention is not limited to this, and the content to be mirrored can be analyzed in the content analysis server independent of the service server 100. The result analyzed by the content analysis server (title, related tag, Location, attribute, genre, and color information) may be transmitted to the broadcast receiving terminal 102, and the broadcast receiving terminal 102 may display the received information.

5 is a diagram illustrating a detailed configuration of a broadcast receiving terminal according to an embodiment of the present invention.

5, a broadcast receiving terminal 102 according to the present invention includes a server communication unit 500, a short range communication unit 502, a key signal receiving unit 504, an interface output unit 506, and a control unit 508 .

In the initial pairing process, the server communication unit 500 transmits a pairing request to the service server 100 and receives a password from the service server 100.

After the pairing is completed, the server communication unit 500 transmits an associated service request for the mirrored content to the service server 100 and receives the associated service information from the service server 100.

The short-range communication unit 502 establishes a connection with the mobile terminal 104, and may be a wireless LAN communication module such as Wi-Fi, and receives screen data transmitted by the paired mobile terminal 104.

The key signal receiving unit 504 receives a key signal received from a remote controller (not shown).

4), the server communication unit 500 transmits an associated service request to the server communication unit 100, and transmits a request for the content to be mirrored from the service server 100 And receives the associated service information.

After receiving the associated service information, the interface output unit 506 outputs an interface for using the associated service corresponding to the key signal input by the user.

According to a preferred embodiment of the present invention, an interface for using an associated service can be output by only a predetermined direction key operation.

For example, an association service according to the present invention may be provided using a four-way key, and if there is an upward direction key selection, the interface output 506 displays a tag (keyword) list associated with the content to be mirrored, And outputs an interface 600 including a search word input window of the search keyword input window.

On the other hand, if there is a left direction key selection, the interface output unit 506 outputs a broadcast program list 602 associated with the content to be mirrored.

Here, the associated broadcast program list may include a live program and a VOD program, which are provided by a broadcasting company on a predetermined channel.

When there is a right direction key selection, the interface output unit 506 outputs a recommended content list 604 associated with the content to be mirrored.

In the present invention, the recommended content is defined as content provided through an over-the-top (OTT) provider, and may be defined as content provided by a provider, not a broadcasting company, via the Internet.

In addition, the recommended content according to the present invention may include not only the content that the user can view but also the product related information related to the content to be mirrored. In such a case, the user may select and purchase a desired product from the recommended content list.

When there is a downward key selection, the interface output unit 506 outputs a content list (a jugular storage box) 606 registered in advance by the user.

The pre-registered content may be content that the user prefers.

Each interface for use of the associated service according to the present invention can be displayed in one of four directions in a transparent state on the screen in a recognizable state.

In more detail, the interface for using the associated service may be output with a predetermined transparency in a direction corresponding to the direction key input by the user.

The control unit 508 controls an authentication request, a password output, and an associated service process of the broadcast receiving terminal 102.

For example, when the user selects one of the related tags or requests a search by inputting a search word, the control unit 508 requests the service server 100 to search for the search result, and controls the search result to be displayed on the screen.

It will be obvious to those skilled in the art that this search process can be performed in a separate search server other than the service server 100. [

In addition, the controller 508 controls the tuner and the decoder included in the broadcast receiving terminal 102 to allow the user to view an associated broadcast program selected by the user.

In addition, the controller 508 receives the recommended content from the service server 100 or a separate content server when the user selects the recommended content, and controls the content to be displayed on the screen.

FIG. 6 illustrates an interface for using an associated service when the content to be mirrored is music video.

7 is a diagram illustrating an interface for using an associated service when the content to be mirrored is a game.

Even if the content to be mirrored is a game for a mobile terminal that is not provided through broadcasting, the content to be mirrored can be identified through the content analyzer 304, and the user can perform a search corresponding to the mirrored content , The associated broadcast program, and the recommended content.

8 is a view illustrating an interface for using an associated service when the mirrored content is a travel photograph, and FIG. 9 is a view illustrating an interface for using an associated service when the mirrored content is a wedding photograph.

As shown in FIGS. 8 to 9, even when the content to be mirrored is a personal image (photograph) not provided through a broadcasting company or an OTT provider, the personal image (picture) , And allows the user to use various corresponding services.

10 is a diagram showing a detailed configuration of a mobile terminal according to the present invention.

10, the portable terminal 104 according to the present invention includes a server communication unit 1000, a short range communication unit 1002, an input unit 1004, an output unit 1006, a setting unit 1008, a memory 1010 And a control unit 1012. [0035]

The server communication unit 1000 transmits a pairing request to the service server 100 in the initial pairing process and transmits the input password to the service server 100 when the password displayed on the broadcast receiving terminal 102 is input.

The short-range communication unit 1002 searches the broadcast receiving terminal 102 located at a short distance and can be a wireless LAN communication module such as Wi-Fi. The short-range communication unit 1002 transmits screen data on the content currently being executed to the paired broadcast receiving terminal 102 send.

The input unit 1004 is a means for receiving a control command for controlling the portable terminal 104 from a user, a command for executing an application, and the like. For example, the input unit 1004 may be realized by at least one key button or a touch panel.

The output unit 1006 is means for displaying various data in the form of time information. For example, the output unit 1006 may be a liquid crystal display.

The input unit 1004 and the output unit 1006 are assumed to be provided as independent components in the portable terminal 110. However, the input unit 1004 and the output unit 1006 are not limited to the touch screen It is obvious that the present invention is not limited thereto.

The setting unit 1008 is a means for setting / storing information related to the broadcast receiving terminal 102 paired with the portable terminal 104 under the control of the controller 1012. [ In addition, the setting unit 1008 can set / manage various information necessary for mirroring the screen data of the portable terminal 104 to the broadcast receiving terminal 102.

The memory 1010 stores various applications necessary for operating the portable terminal 110 according to an embodiment of the present invention.

The control unit 1012 is a means for controlling internal components of the portable terminal 104 according to an embodiment of the present invention.

Embodiments of the present invention may be implemented in the form of program instructions that can be executed on various computer means and recorded on a computer readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions recorded on the medium may be those specially designed and constructed for the present invention or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks, and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Examples of program instructions, such as magneto-optical and ROM, RAM, flash memory and the like, can be executed by a computer using an interpreter or the like, as well as machine code, Includes a high-level language code. The hardware devices described above may be configured to operate as at least one software module to perform operations of one embodiment of the present invention, and vice versa.

As described above, the present invention has been described with reference to particular embodiments, such as specific elements, and specific embodiments and drawings. However, it should be understood that the present invention is not limited to the above- And various modifications and changes may be made thereto by those skilled in the art to which the present invention pertains. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

Claims (16)

A method of providing an association service in a service server connected via a network with a broadcast receiving terminal connected to a mobile terminal,
(a) receiving, from the broadcast receiving terminal, related information on a content transmitted from the portable terminal to the broadcast receiving terminal;
(b) extracting related service information of the delivered content using related information about the content; And
and (c) transmitting the extracted associated service information to the broadcast receiving terminal.
A method for providing an associated service. The method according to claim 1,
Wherein the associated service information includes at least one of association search information, an associated broadcast program list, and a recommended content list for the delivered content. The method according to claim 1,
The mobile terminal may mirror the screen data output on the screen to the broadcast receiving terminal,
And the related information on the content includes a captured image or audio for the content to be mirrored to the broadcast receiving terminal. The method of claim 3,
Analyzing the captured image or audio prior to step (b) to analyze at least one of title, related tag, person, place, attribute, genre, and color of the mirrored content,
And (b) extracting the associated service information based on the analyzed result. 3. The method of claim 2,
Wherein the broadcast receiving terminal outputs an interface for at least one of the related search information, the related broadcast program list, and the recommended content list on a screen when a predetermined direction key is input. 6. The method of claim 5,
Wherein the interface for the associated search information comprises an associated tag list of the mirrored content and a search word input window. 6. The method of claim 5,
Wherein the interface for the associated broadcast program list is associated with the mirrored content and includes a live program or an on-demand program provided by a broadcaster. 6. The method of claim 5,
Wherein the interface for the recommended content list is associated with the mirrored content and includes content provided by a provider other than the broadcasting company. 6. The method of claim 5,
Wherein each of the interfaces for the related search information, the associated broadcast program list, and the recommended content list is output with a preset transparency in a direction corresponding to the direction key. The method according to claim 1,
Wherein the content-related information includes metadata previously input by the user of the mobile terminal or registered in advance for the content to be mirrored. The method according to claim 1,
Prior to step (a)
Receiving a pairing request from the portable terminal and the broadcast receiving terminal;
Transmitting a password generated by the pairing request to the broadcast receiving terminal; And
Further comprising determining whether a password received from the portable terminal after the broadcasting terminal outputs the password matches the password transmitted to the broadcasting terminal, and completing the pairing. 12. A computer-readable recording medium on which a program for performing the method according to any one of claims 1 to 11 is recorded. A service server apparatus connected to a broadcast receiving terminal paired with a mobile terminal through a network,
A communication unit for receiving, from the broadcast receiving terminal, content related information transmitted from the portable terminal to the broadcast receiving terminal; And
And an associated service extracting unit for extracting related service information of the transferred content using the content related information,
And the communication unit transmits the extracted associated service information to the broadcast receiving terminal. A broadcast receiving apparatus, which is paired with a portable terminal and is connected to a service server through a network,
A local communication unit for receiving content from the mobile terminal through local area communication;
A server communication unit for transmitting related service information including the delivered content related information to the service server according to a request of a user and receiving related service information for the delivered content from the service server;
And an interface output unit for outputting an interface for using an associated service by using the related service information received from the service server
Is a broadcast receiving apparatus. 15. The method of claim 14,
The related service information includes at least one of association search information, an associated broadcast program list, and a recommended content list for the delivered content,
Wherein the interface output unit outputs an interface for at least one of the related search information, the associated broadcast program list, and the recommended content list in a direction corresponding to the input direction key when a predetermined direction key of the user is input. 16. The method of claim 15,
The interface output unit includes:
Wherein the display unit displays each interface for association search information, an associated broadcast program list, and a recommended content list in a predetermined transparency in a direction corresponding to the direction key.

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