KR101131113B1 - System and method for delivery broadcasting contents - Google Patents

Abstract

The present invention relates to a system and method for providing broadcast contents, so that broadcast contents being viewed on a portable terminal using a CDN (Content Delivery Network) service can be continuously watched on a home Internet Protocol TeleVision (IPTV) using a simple operation of the portable terminal. This is to provide the broadcast content. According to the present invention, a broadcast server provides broadcast content. The replica server receives and stores broadcast content from the broadcast server. The portable terminal receives a broadcast content from the copy server, receives a request for transmission of the broadcast content to IPTV during reproduction, and transmits broadcast content information of the broadcast content according to the request for transmission to the IPTV. The set top box receives the broadcast content information from the portable terminal, requests the broadcast content from the portable terminal, and receives the broadcast content. The IPTV receives and plays the broadcast content from the set top box.

Description

System and method for delivery broadcasting contents

The present invention relates to a broadcast content service, and more particularly, to provide broadcast content so that broadcast content being viewed on a portable terminal can be subsequently viewed on a home IPTV (Internet Protocol TeleVision) using a CDN (Content Delivery Network) service. A broadcast content providing system and method.

Information and communication technology using wired and wireless communication networks is growing very fast in a short period of time due to new technologies and functions that stimulate consumer purchasing. In particular, due to the development of the technology of the mobile terminal, beyond the step of performing a simple application, various applications are installed to meet the needs of users. As a result, the terminal user can use voice information, text information, image information, moving picture expert group (MP3), games, and the like through the mobile terminal, regardless of wherever he or she is moving or outdoors.

Recently, as a digital broadcasting reception function is added to a portable terminal, a terminal user can receive and watch broadcast contents such as digital broadcasting through the portable terminal. Currently, the digital broadcasting method that can be serviced can be largely divided into digital multimedia broadcasting (DMB) and digital video broadcasting (DVB). DMB can be further divided into terrestrial DMB (also called T-DMB) and satellite DMB.

However, when a user wants to watch broadcast content viewed on a mobile terminal through another medium, for example, IPTV, an IPTV user has an inconvenience in that the user needs to find the broadcast content by manipulating the IPTV. Also, in the case of broadcast content in which the broadcast content is broadcast in real time, the broadcast content portion broadcast during the time for searching for the broadcast content may not be viewed.

Accordingly, an object of the present invention is to enable broadcast content being viewed on a portable terminal using a CDN service to be viewed on a home IPTV by a simple operation of the portable terminal.

Another object of the present invention is to enable the user to subsequently watch the broadcast content being viewed on the portable terminal on the IPTV using the CDN service.

In order to achieve the above object, the present invention comprises a broadcast server, replication server, portable terminal, set-top box and IPTV. The broadcast server provides broadcast content. The copy server receives and stores broadcast content from the broadcast server. The portable terminal receives a broadcast content from the duplication server, receives a request for transmission of the broadcast content to an IPTV during playback, and transmits broadcast content information of the broadcast content according to the request for transmission to the IPTV. The set top box receives the broadcast content information from the portable terminal, requests the broadcast content from the portable server, and receives the broadcast content. The IPTV receives and plays the broadcast content from the set top box.

The present invention also provides a set top box of a broadcast content system including a network communication unit, an IPTV connection unit, a local area communication unit, and a control unit. The network communication unit communicates with the replication server via a network. The IPTV connection unit transmits and receives data with the IPTV. The local area communication unit performs local area communication with the mobile terminal. And the control unit receives broadcast content information of the broadcast content according to a request for transmission of the broadcast content to IPTV from the portable terminal, which is playing the broadcast content received from the copy server, and broadcasts corresponding to the received broadcast content information. Requests and receives content from the duplication server, and transmits and receives the received broadcast content to the IPTV.

The present invention also provides a portable terminal of a broadcast content providing system including an input unit, a network communication unit, a display unit, a short range communication unit, and a control unit. The input unit receives a user's selection signal. The network communication unit communicates with the replication server via a network. The display unit receives and reproduces broadcast content from the copy server. The short range communication unit performs short range communication with the set top box. The controller transmits the broadcast content information of the broadcast content to the set top box through short-range communication when the request for transmission of the broadcast content to the IPTV is input through the input unit while the broadcast content is being played, and the set top box transmits the broadcast to the set top box. The broadcast content corresponding to the content information is received from the copy server and reproduced by the IPTV.

The present invention also provides a first reception process for receiving broadcast content information of the broadcast content by short-range communication in response to a request for transmission of the broadcast content to an IPTV from a portable terminal that is playing broadcast content received from a replication server by a set-top box; A second reception process of the set-top box requesting and receiving broadcast content corresponding to the received broadcast content information to the copy server, and a playback process of the set-top box transmitting the received broadcast content to the IPTV for playback; It provides a broadcast content providing method comprising.

The present invention also provides an input process in which a mobile terminal receives a broadcast content from a copy server and receives a request for transmission of the broadcast content to an IPTV during playback, and the mobile terminal broadcast content of the broadcast content according to a request for transmission to the IPTV. A reproduction process of transmitting information to a set-top box connected to the IPTV through short-range communication, and having the set-top box receiving the broadcast content information receive the broadcast content corresponding to the broadcast content information from the copy server to play the IPTV; It provides a broadcast content providing method comprising a.

According to the structure of the present invention, the mobile terminal provides the broadcast content information of the broadcast content currently being viewed using the CDN service to the set-top box through short-range communication, and the set top box (STB) is connected to the corresponding broadcast content information. By requesting and receiving the corresponding broadcast content from the duplication server, the set-top box provides the received broadcast content to the IPTV, so that the broadcast content being viewed on the portable terminal can be subsequently viewed through the IPTV by a simple operation of the portable terminal. As a result, it is possible to alleviate the inconvenience of having to find the corresponding broadcast content in order to watch the broadcast content that the user watches on the portable terminal through the IPTV.

In addition, even if the broadcast content is broadcast content in real time, the mobile terminal transmits the broadcast content information of the broadcast content to the set-top box, so that the user can minimize the time to find the broadcast content, the time to find the broadcast content Minimize the portion of the broadcast content that you do not watch while.

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

Here, the 'broadcast content information' includes related information about broadcast content reproduced in the mobile terminal. The related information about the broadcast content may include channel information that broadcasts the broadcast content, and may further include current reproduction state information of the broadcast content.

In the broadcast content providing system 100 according to the present embodiment, as shown in FIG. 1, the network 10, the broadcast server 20, the replication server 30, the portable terminal 40, and the set-top box 50 are provided. And IPTV 60. At this time, the broadcast server 20, the replication server 30, the portable terminal 40 and the set-top box 50 is connected via a network (10).

In particular, the broadcast content providing system 100 according to the present embodiment uses a CDN service method. In this case, the CDN refers to broadcast content concentrated on the broadcast server 20 of the broadcast content provider far from the clients (which means the mobile terminal 40, the set-top box 50, etc.), for example, pictures, banners, and videos. Alternatively, the broadcasting content having a large capacity such as audio or frequently requested by the clients is stored in advance in a replication server 30 which is widely distributed and distributed at a plurality of Internet Service Provider (ISP) Points of Interest (PoP). When the client requests, the service returns the path of the replication server 30 closest to the user so that the client can access the replication server 30 through the returned path and receive broadcast contents. Here, the replication server 30 is variously referred to as a host server, a cache server, or a ghost server.

The network 10 refers to a data communication network for data transmission and information exchange between the broadcast server 20, the replication server 30, the portable terminal 40, and the set top box 50. The network 10 is an IP network providing a large data transmission / reception service and a seamless data service through IP, and may be an ALL-IP network, which is an IP network structure integrating different networks based on IP. Alternatively, the network 10 may include an internet network connecting the broadcast server 20, the replication server 30, and the set-top box 50, and a mobile communication network connecting the replication server 30 and the mobile terminal 40. have.

The broadcast server 20 stores web pages and objects including broadcast content provided by broadcast content providers. The broadcast server 20 transmits, to the copy server 30, broadcast content having a relatively high frequency of requests or content that is expected to be requested from a client.

The duplication server 30 stores the broadcast content received from the broadcast server 20, and stores a copy of the broadcast content stored and managed by the broadcast server 20. The duplicate server 30 quickly responds to a broadcast content request through the mobile terminal 40 or the set-top box 50. That is, the replication server 30 transmits the broadcast content requested from the mobile terminal 40 or the set-top box 50 to the mobile terminal 40 or the IPTV 60, and transmits the advertisement content when transmitting the broadcast content. Can be sent together.

The portable terminal 40 is connected to the duplication server 30 through the network 10, and receives and plays broadcast content from the duplication server 30 through the connected network 10. The portable terminal 40 receives a request for transmission of the broadcast content to the IPTV 60 while playing the broadcast content, and sets the top-level box 50 through short-range communication based on broadcast content information of the broadcast content according to the input request to the IPTV 60. To send). The portable terminal 40 according to the present embodiment can access the duplication server 30 through the network 10 while being carried by the terminal user, and receive and play broadcast contents from the duplication server 30 connected thereto. As a communication terminal capable of short-range communication with 50, it may be one of a mobile communication terminal, a notebook, a personal digital assistant (PDA), a portable multimedia player (PMP), a digital broadcasting receiver such as DMB or DVB.

The set top box 50 mediates the connection of the replication server 30, the portable terminal 40, and the IPTV 60. The set top box 50 receives broadcast content information from the mobile terminal 40 through local area communication. The set top box 50 requests and receives broadcast content corresponding to broadcast content information through the network 10 to the copy server 30. The set top box 50 transmits the received broadcast content to the IPTV 60 for playback.

In addition, the IPTV 60 is connected to the set top box 50 and receives and reproduces the broadcast content being played in the portable terminal 40 from the set top box 50. The IPTV 60 according to the present embodiment is a display device that is connected to the set-top box 50 to display and display broadcast contents received. The IPTV 60 is a cathode ray tube (CRT), a liquid crystal display (LCD), or a plasma (PDP). Display Panel) includes a display device.

As described above, the content providing system 100 according to the present exemplary embodiment displays the broadcast content being viewed on the mobile terminal 40 through the IPTV 60 by a simple operation of the mobile terminal 40 without a separate operation on the IPTV 60. Subsequently, the broadcast contents are provided for viewing by the IPTV user.

The replication server 30 according to the present embodiment will be described in detail with reference to FIGS. 1 and 2 as follows. The replication server 30 includes a first network communication unit 36, a database unit 35, and a first control unit 31.

The database unit 35 stores the broadcast content received from the broadcast server 20. The database unit 35 may store a program necessary for controlling the operation of the replication server 30 and data generated while executing the program. The database unit 35 stores an execution program for transmitting broadcast content. The broadcast content stored in the database unit 35 is broadcast content with a relatively high request frequency or content that a request is expected from a client.

The first network communication unit 36 communicates with the broadcast server 20, the portable terminal 40, and the IPTV 60 via the network 10. The first network communication unit 36 receives a broadcast content transmission request from the mobile terminal 40 or the set-top box 50 and transmits the broadcast content to the mobile terminal 40 or the IPTV 60 requesting the broadcast content. do.

In addition, the first controller 31 performs an overall control operation of the replication server 30. The first control unit 31 controls the transmission of the broadcast content stored in the database unit 35 to the portable terminal 40 or the IPTV 60. That is, when the first control unit 31 receives a request for transmitting broadcast content from the mobile terminal 40 through the first network communication unit 36, the first control unit 31 receives the requested broadcast content through the first network communication unit 36. To send. In addition, when the first control unit 31 receives a request for transmitting broadcast content from the set top box 50 through the first network communication unit 26, the first control unit 31 receives the requested broadcast content through the first network communication unit 36. To send. In particular, when the set-top box 50 receives a request for transmission of the broadcast content to the IPTV 60 from the portable terminal 40 that receives and reproduces the broadcast content, the first control unit 31 sets the set-top box 50. Receives the request for transmission of the broadcast content through the first network communication unit 36.

The portable terminal 40 according to the present embodiment will be described in detail with reference to FIGS. 1 and 3 as follows. The portable terminal 40 includes a second control unit 41, an input unit 43, a second memory unit 45, a second network communication unit 46, a second local area communication unit 47, a display unit 48, and a voice processing unit ( 49).

The second controller 41 performs an overall control operation of the mobile terminal 40. The second controller 41 controls playback of broadcast content and a request for transmission of the broadcast content to the IPTV 60 during broadcast content playback.

The input unit 43 provides a plurality of keys for the operation of the portable terminal 40, and generates and transmits a selection signal according to the key selection of the terminal user to the second control unit 41. The terminal user requests the broadcast content through the input unit 43 and requests transmission of the broadcast content being viewed to the IPTV 60. In this case, the input unit 43 includes a transmission key 43a for receiving a request for transmission of broadcast content to the IPTV 60. The transmission key 43a may be installed in the portable terminal 40 separately from the existing key, or may be used by mapping a function of the transmission key 43a to at least one of the existing keys. The input unit 43 may be a keypad, a pointing device such as a touch pad, or an input device such as a touch screen.

The second memory unit 45 stores a program necessary for controlling the operation of the portable terminal 40 and data generated while the program is executed, and includes at least one volatile memory device and a nonvolatile memory device. The second memory unit 45 stores the channel information of the broadcast content included in the broadcast content information generated in response to a request for transmitting the broadcast content to the IPTV 60 while the broadcast content is being played. The second memory unit 45 reproduces the broadcast content and stores an execution program for processing a request for transmitting the broadcast content to the IPTV 60 during the broadcast content reproduction.

The second network communication unit 46 communicates with the replication server 30 via the network 10. The second network communication unit 46 requests and transmits the specific broadcast content to the copy server 30.

The second short range communication unit 47 performs short range communication with the set top box 50. The second local area communication unit 47 transmits the broadcast content information for the request for transmission of the broadcast content being played on the display unit 48 to the IPTV 60 to the set top box 50. The second short range communication unit 47 includes at least one of a wired communication unit and a short range wireless communication unit. The wired communication unit is connected to the set top box 50 through a data cable to perform wired communication. The short range wireless communication unit uses one of Bluetooth, infrared, zigbee, Ultra WideBand, and Near Field Communication (NFC) as a communication method.

The display unit 48 displays information stored in the second memory unit 45 including various function menus executed in the portable terminal 40. The display unit 48 displays the received broadcast content under the control of the second control unit 41. As the display unit 48, an LCD or a touch screen may be used. The touch screen serves both as a display device and as an input device.

The voice processor 49 processes and outputs voice data of broadcast content reproduced under the control of the second controller 41.

In particular, when the second controller 41 receives a request for transmitting the broadcast content to the IPTV 60 through the input unit 43 while the broadcast content is being played, the second control unit 41 receives the broadcast content information of the broadcast content through the second local area communication unit 47. Send to box 50. At this time, the set-top box 50 requests and receives the broadcast content corresponding to the broadcast content information to the duplication server 30, and transmits the received broadcast content to the IPTV 60 for reproduction.

On the other hand, if the terminal user is located in the home with the set-top box 50 and the IPTV 60, when the request for the transmission of the broadcast content to the IPTV 60 through the input unit 43, the second control unit 41 is IPTV The power can be supplied to 60 to turn on the screen. That is, the portable terminal 40 may perform a function of a remote controller for adjusting the IPTV 60, and may further include a remote controller module unit for performing a remote controller function.

As described above, the terminal user can subsequently watch the broadcast content being viewed on the portable terminal 40 through the IPTV 60 by a simple operation such as selecting the dedicated key 43a provided in the portable terminal 40. In order to view the broadcast content viewed through the IPTV 60 through the IPTV 60, it is possible to minimize the inconvenience of the IPTV user having to find the corresponding broadcast content one by one.

The set top box 50 according to the present embodiment will be described with reference to FIGS. 1 and 4 as follows. The set top box 50 includes a third control unit 51, a third memory unit 53, a third local area communication unit 57, a third network communication unit 56, and an IPTV connection unit 59.

The third controller 51 performs an overall control operation of the set top box 50. The third controller 51 controls reproduction of the broadcast content corresponding to the broadcast content information received from the mobile terminal 40 through the IPTV 60.

The third memory unit 53 stores a program necessary for controlling the operation of the set top box 50 and data generated while the program is executed, and includes at least one volatile memory device and a nonvolatile memory device. The third memory unit 53 requests and receives the broadcast content corresponding to the broadcast content information received from the mobile terminal 40 to the duplication server 30, and reproduces the received broadcast content through the IPTV 60. Save the executable program.

The third local area communication unit 57 performs local area communication with the second local area communication unit 47 of FIG. 3. The third local area communication unit 57 receives broadcast content information from the second local area communication unit (47 in FIG. 3) and transmits the broadcast content information to the third control unit 51.

The third network communication unit 56 performs data communication with the copy server 30 through the network 10, and receives broadcast content from the copy server 30. The third network communication unit 56 receives the broadcast content received from the copy server 30 in response to a request for transmission of the broadcast content being played in the portable terminal 40 to the IPTV 60. In this case, the replication server 30 may transmit the advertisement content together with the broadcast content.

In addition, the IPTV connection unit 59 connects the set-top box 50 and the IPTV 60, receives the broadcast content being played in the portable terminal 40, and transmits the broadcast content to the IPTV 60.

In particular, the third controller 51 receives the broadcast content information of the broadcast content in response to the request for transmission of the broadcast content being played by the mobile terminal 40 to the IPTV 60 through the third short range communication unit 57. The third controller 51 requests and receives the broadcast content corresponding to the received broadcast content information from the copy server 30 through the third network communication unit 56. The third control unit 51 transmits the received broadcast content to the IPTV 60 through the IPTV connection unit 59 to play the received broadcast content. At this time, the third controller 51 checks the channel information of the corresponding broadcast content included in the received broadcast content information, and requests the transmission of the broadcast content to the duplication server 30 corresponding to the channel information.

On the other hand, when the third control unit 51 receives the broadcast content from the copy server 30 through the third network communication unit 46, the third control unit 51 determines whether the power of the IPTV 60 is turned on. As a result of the determination, when the power of the IPTV 60 is turned off, the third control unit 51 turns on the power of the IPTV 60 through the IPTV connection unit 49 and then receives the received broadcast content from the IPTV 60. Play by sending to.

However, as a result of the determination, when the power of the IPTV 60 is turned on, the third controller 51 may convert and display the broadcast content currently being played through the IPTV 60 into the received broadcast content. Alternatively, the third controller 51 may display a channel switching confirmation message window on the IPTV 60, and continuously display the currently playing content or switch to the received broadcast content according to the request of the IPTV user.

When displaying the broadcast content received through the IPTV 60, the third control unit 51 displays the advertisement content at least one time before the broadcast content is played, at the middle of the play or after the play is finished. ) Can be displayed.

The broadcast content providing method of the broadcast content providing system 100 according to the present exemplary embodiment will be described with reference to FIGS. 1 to 5 as follows. 5 is a flowchart illustrating a broadcast content providing method according to an embodiment of the present invention.

First, in step S61, the broadcast server 20 transmits specific broadcast content to the copy server 30, and in step S63, the copy server 30 stores the received broadcast content. In this case, the specific broadcast content transmitted to the copy server 23 may be a broadcast content having a relatively high request frequency or broadcast content expected from a client among the broadcast content stored in the broadcast server 20.

Next, in step S71, the portable terminal 40 requests broadcast content to be viewed by the duplication server 30 through the network 10 according to the selection signal of the terminal user. In step S73, the replication server 30 transmits the requested broadcast content to the mobile terminal 40 through the network 10. In operation S75, the mobile terminal 40 plays the received broadcast content and displays it on the display unit 48.

Next, in step S77, the portable terminal 40 determines whether a transmission request from the terminal user to the IPTV 60 of the currently viewed broadcast content is input. That is, it is determined whether the transmission key 43a of the portable terminal 40 is selected. For example, the terminal user may select the private key 43a when the user wants to watch the broadcast content being watched on the large screen such as the IPTV 60 by moving the broadcast content that is being watched through the portable terminal 40 outside the home. Alternatively, the selection of the dedicated key 43a may be made to the terminal user in order to allow the IPTV user of the home to watch the broadcast content being watched through the portable terminal 40 outside the home without a separate operation.

If the determination result of step S77 is not input, the mobile terminal 40 performs step S75.

When the request for transmission to the IPTV 60 is input as a result of the determination in step S77, in step S79, the portable terminal 40 transmits the broadcast content information to the set-top box 50 to request transmission of the broadcast content to the IPTV 60. Send by local area communication. In this case, the broadcast content information includes channel information of the corresponding broadcast content.

On the other hand, when the dedicated key 43a is selected, the portable terminal 40 may continue to receive and play the broadcast content from the copy server 30, or may request the copy server 30 to stop transmitting the broadcast content. . When requesting to stop transmission of the corresponding broadcast content, the mobile terminal 40 may switch from the broadcast reception state to the standby state.

Next, in step S81, the set-top box 50 requests the copy server 30 for broadcast content corresponding to the received broadcast content information. In step S83, the replication server 30 transmits the requested broadcast content to the set-top box 50. In this case, the set-top box 50 checks channel information of the corresponding broadcast content included in the received broadcast content information, and then requests transmission of the broadcast content to the copy server 30 corresponding to the channel information.

Next, in step S85, the set-top box 50 transmits the received broadcast content to the IPTV 60.

In operation S87, the IPTV 60 reproduces and displays the received broadcast content. In this case, the IPTV user may subsequently watch the broadcast content being viewed on the mobile terminal 40 through the IPTV 60.

Meanwhile, in operation S83, the replication server 30 may transmit the advertisement content together when transmitting the broadcast content to the set top box 50. In steps S85 and S87, the set-top box 50 may transmit and display the advertisement content to the IPTV 60 at least one time before the broadcast content is played, midway to play, or after playback ends.

On the other hand, the embodiments of the present invention disclosed in the specification and drawings are merely presented specific examples to aid understanding, and are not intended to limit the scope of the present invention. In addition to the embodiments disclosed herein, it is apparent to those skilled in the art that other modifications based on the technical idea of the present invention may be implemented.

The present invention relates to a system and method for providing broadcast content using a CDN service, wherein a portable terminal provides broadcast content information on broadcast content being played to a set top box through local area communication, and the set top box broadcasts corresponding to broadcast content information. By requesting and receiving the content from the duplication server, the set-top box provides the received broadcast content to the IPTV, so that the broadcast content being viewed on the portable terminal can be subsequently viewed through the IPTV by a simple operation of the portable terminal. In order to view the broadcast content being used through IPTV, inconvenience of having to find the corresponding broadcast content one by one can be eliminated.

1 is a block diagram illustrating a broadcast content providing system according to an exemplary embodiment of the present invention.

2 is a block diagram illustrating a configuration of a replication server of FIG. 1.

3 is a block diagram illustrating a configuration of the portable terminal of FIG. 1.

4 is a block diagram illustrating a configuration of the set top box of FIG. 1.

5 is a flowchart illustrating a broadcast content providing method according to an embodiment of the present invention.

Description of the Related Art [0002]

10: network 20: broadcast server

30: replica server 31: first control unit

35: database unit 37: first network communication unit

40: mobile terminal 41: second control unit

43: input unit 43a: transmission key

45: second memory unit 46: second network communication unit

47: second short-range communication unit 48: display unit

49: voice processing unit 50: set-top box

51: third control unit 55: third memory unit

56: third network communication unit 57: third short-range communication unit

59: IPTV connection 60: IPTV

100: broadcast content providing system

Claims (14)

A broadcast server providing broadcast content; A duplication server for receiving and storing broadcast content from the broadcast server; A mobile terminal receiving a broadcast content from the copy server and receiving a request for transmission of the broadcast content to an IPTV during reproduction, and transmitting broadcast content information of the broadcast content according to the request for transmission to the IPTV; A set-top box receiving the broadcast content information from the portable terminal and requesting and receiving the broadcast content from the duplication server; And the IPTV for receiving and reproducing the broadcast content from the set top box. The method of claim 1, The IPTV broadcast content providing system, characterized in that for receiving and playing the advertising content with the broadcast content from the copy server through the set-top box. The method according to claim 1 or 2, The broadcast content stored in the duplication server is a broadcast content providing system, characterized in that the request frequency is relatively high or the request is expected compared to other broadcast content. A network communication unit for communicating with the replication server via a network; An IPTV connection unit for transmitting and receiving data with the IPTV; A local area communication unit performing local area communication with the mobile terminal; Receives broadcast content information of the broadcast content according to a request for transmission of the broadcast content to IPTV from the portable terminal, which is playing the broadcast content received from the copy server, and copies the broadcast content corresponding to the received broadcast content information. And a controller for requesting and receiving a server, and transmitting and playing the received broadcast content to the IPTV. 5. The method of claim 4, The broadcast content information set-top box of a broadcast content providing system, characterized in that it comprises channel information of the broadcast content. The method of claim 5, wherein the control unit, The set-top box of the broadcast content providing system, characterized in that for requesting the broadcast content to the copy server according to the channel information of the broadcast content. An input unit configured to receive a user selection signal; A network communication unit for communicating with the replication server via a network; A display unit for receiving and playing broadcast contents from the copy server; A local area communication unit performing local area communication with the set-top box; When a request for transmission of the broadcast content to the IPTV is input through the input unit while playing the broadcast content, the broadcast content information of the broadcast content is transmitted to the set top box through short-range communication, and the set top box corresponds to the broadcast content information. And a controller configured to receive the broadcast content from the copy server and to play the broadcast content on the IPTV. The method of claim 7, wherein And the input unit comprises a transmission key for requesting transmission of the broadcast content to IPTV. 9. The method according to claim 7 or 8, When the request for transmission of the broadcast content to the IPTV is input through the input unit, the controller supplies power to the IPTV to turn on the screen. A first receiving step of receiving, by short-distance communication, broadcast content information of the broadcast content according to a request for transmission of the broadcast content to an IPTV from a portable terminal that is playing the broadcast content received from the copy server by the set-top box; A second reception step of the set-top box requesting and receiving broadcast content corresponding to the received broadcast content information from the duplication server; And a playback process of the set top box transmitting the received broadcast content to the IPTV. The method of claim 10, wherein in the second receiving process, And the set top box receives advertisement content together with the broadcast content from the copy server. The method of claim 11, wherein in the regeneration process, And transmitting the advertising content to the IPTV for playback at least at one point before the broadcast content is played, midway to play, or after playback ends. The method according to any one of claims 10 to 12, wherein the regeneration process is Determining, by the set-top box, whether the IPTV is powered on when the broadcast content is received; If the determination result is turned off, turning on the power of the IPTV and transmitting the received broadcast content to the IPTV; If the determination result is turned on, transmitting the received broadcast content to the IPTV by the set-top box; and providing the broadcast content. An input process in which the portable terminal receives a broadcast content from a duplication server and receives a request for transmission of the broadcast content to an IPTV during reproduction; The portable terminal transmits broadcast content information of the broadcast content to a set top box connected to the IPTV in short range communication according to a request for transmission to the IPTV, and the set top box receiving the broadcast content information corresponds to the broadcast content information. And a reproduction process of receiving broadcast content from the copy server and playing the broadcast content on the IPTV.

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