KR20120062550A - Method for providing multi screen service based on terminal authentication and apparatus thereof - Google Patents

Abstract

PURPOSE: A terminal authentication based multi-screen service supplying method and an apparatus thereof are provided to protect broadcasting content which is shared between a main terminal and a client terminal. CONSTITUTION: A broadcasting head-end(400) determines whether to permit use of a broadcasting service in a first terminal based on information of a main terminal(410) and a client terminal(420). The broadcasting head-end transmits a broadcasting service use permit message of the main terminal to the client terminal. The client terminal confirms the broadcasting service use permit message.

Description

Method and device for providing terminal authentication based multi-screen service {Method For Providing Multi Screen Service Based On Terminal Authentication And Apparatus Thereof}

The present invention relates to a broadcast system, and more particularly, to a method for providing a broadcast service to a client terminal in a multi-screen service environment.

The number of pay-TV services such as cable television and Internet protocol television (“IPTV”) is increasing.

IPTV refers to a service that provides information service, video content, and broadcasting to a receiver terminal including a television receiver using high-speed Internet. IPTV is a type of digital convergence in that it is a convergence of the Internet and television.

To use IPTV, you need a television receiver, a set-top box, and an Internet line.

Even people who are not familiar with computers can use the controllers such as the remote control to provide various contents and supplementary services provided by the service provider through the Internet as well as watching the Internet, watching movies, home shopping, home banking, online games, and MP3s. have.

In addition, in recent years, interest in smart TV technology that enables not only to view broadcast contents provided by broadcasting stations, but also to access Internet networks and enjoy Internet services has increased.

Smart TVs also provide services using the Internet network, and not only the content secured by the service provider, but also all the online and offline contents, such as not only professional developers but also programs produced by unspecified consumers, can be used. have.

In addition, unlike IPTV, which partially supported bidirectionality, smart TVs fully support bidirectionality between broadcast service providers and broadcast service users.

An object of the present invention is to provide a method for protecting broadcast content shared between a main terminal and a client terminal when providing a multi-screen broadcasting service in a pay broadcasting service.

According to the present invention, in the case of providing a multi-screen broadcasting service in a pay broadcasting service, a method for providing a multi-screen broadcasting service only when authentication and / or registration of a client terminal is confirmed through a broadcasting head end. The purpose is to provide.

According to the present invention, in the case of providing a multi-screen broadcasting service in a pay broadcasting service, in the process of sharing the content between the main terminal and the client terminal, only the authorized client terminal uses the content, thereby providing the pay broadcasting service. An object of the present invention is to provide a method of preventing illegal use of content.

An aspect of the present invention provides a multi-screen service providing method, comprising: transmitting a broadcast service use request from a first terminal to a second terminal; using a broadcast service of a first terminal to a broadcast headend providing a broadcast service from a second terminal Transmitting a request, determining whether to permit the use of a broadcast service for a first terminal based on information of a first terminal and a second terminal included in a broadcast service use request at a broadcast headend, and a broadcast headend. Transmitting the broadcast service use permission message of the first terminal from the second terminal to the second terminal and confirming the broadcast service use permission message at the second terminal, and broadcasting to the first terminal when the use of the broadcast service of the first terminal is permitted. Transmitting a confirmation message regarding the service permission.

According to the present invention, when providing a multi-screen broadcast service in a pay broadcast service, it is possible to protect the broadcast content shared between the main terminal and the client terminal.

According to the present invention, in the case of providing a multi-screen broadcasting service in a pay broadcasting service, the multi-screen broadcasting service can be provided only when authentication and / or registration of the client terminal is confirmed through a broadcasting head end. have.

According to the present invention, in the case of providing a multi-screen broadcasting service in the pay broadcasting service, in the process of sharing the content between the main terminal and the client terminal, only the authorized client terminal uses the content, thereby providing the pay broadcasting service. It can prevent illegal use of the content.

1 is a diagram schematically illustrating a concept of a multi-screen service.
2 is a flowchart schematically illustrating a method of performing a multi-screen broadcast service in a system to which the present invention is applied.
3 is a flowchart schematically illustrating a registration and / or authentication procedure of a client terminal in a system to which the present invention is applied.
4 is a block diagram illustrating a schematic configuration of a broadcast head end, a main terminal, and a client terminal in a system to which the present invention is applied.

By using a smart TV or an IPTV, the user can not only view the conventional broadcast contents provided by the broadcasting station, but also can access the broadband network and enjoy the Internet service. In such an environment, using a multi-screen service, a broadcast can be watched through a plurality of screen devices such as a TV, a personal computer (PC), or a portable terminal in a home.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment of this invention is described concretely with reference to drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In addition, in describing the embodiments of the present specification, when it is determined that the detailed description of the related well-known configuration or function may obscure the subject matter of the present specification, the detailed description thereof will be omitted.

In addition, in describing the components of the present specification, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. If a component is described as being "connected", "coupled", or "connected" to another component, that component may be directly connected or connected to that other component, but there is another component between each component. It will be understood that may be "connected", "coupled", "connected".

1 is a diagram schematically illustrating a concept of a multi-screen service.

The main terminal 120 in the home receives broadcast contents from the broadcast service provider 110 through a wired or wireless network.

The various types of client terminals 140 may use broadcast services through the main terminal 130.

The broadcast service provider 110 is a service provider for providing broadcast content, and includes a cable TV provider for providing IPTV, smart TV service, and the like.

In a broadcast service device, receiving and retransmitting a program is mainly performed at a headend.

The headend adjusts the signal output of the cable television receiving antenna and transmits it to the trunk cable. That is, the headend is a device for transmitting the acquired broadcast content or the self-produced broadcast content through the trunk cable.

Through the headend, the broadcast content obtained by wired or wireless may be transmitted to the home through the wired or wireless network.

The main terminal 130 may be a smart TV including a plurality of radio frequency (RF) tuners, a storage device such as a personal video recorder (PVR), and a digital set-top box supporting wired / wireless networks.

The client terminal 140 may be a fixed or portable multimedia device capable of connecting to a wired or wireless network such as a client set-top box, a PC, a portable multimedia player (PMP), a smart phone, etc., which does not include an RF tuner.

The service user may watch the broadcast through the main terminal 130 subscribed to the pay broadcast service, and simultaneously share the broadcast service using the client terminal 140 in various forms without time or space constraints.

As such, the main terminal and the client terminal can share the broadcast content and the multimedia data provided by the broadcaster through the multi-screen service.

In this case, the broadcast content includes not only real time broadcast content but also non-real time broadcast content. The multimedia data also includes data such as photographs, music, and text.

On the other hand, the content shared between the main terminal and the client terminal is the content provided by the broadcast provider for a fee, as well as objects that are subject to copyright. Accordingly, there is a need for a method of controlling sharing of content or movement of content in a multi-screen environment.

Paid broadcasting services, such as cable broadcasting and IPTV, allow users to use broadcasting contents only by users with legitimate rights through technologies such as Conditional Access System (CAS) or Digital Right Management (DRM). For example, it is intended to prevent illegal copying and illegal distribution of content using CAS and DRM.

According to the present invention, even when the multi-screen broadcasting service is provided as a pay broadcasting service, illegal use of the content can be prevented between the main terminal subscribed to the pay broadcasting service and the client terminal receiving and retransmitting the broadcasting content from the main terminal. Provide a method.

2 is a flowchart schematically illustrating a method of performing a multi-screen broadcast service in a system to which the present invention is applied.

In order to use the multi-screen broadcast service, the client terminal requests registration and / or authentication of the client terminal to use the broadcast service (S210).

The main terminal is already registered in the broadcast service and has been certified to use content provided by the broadcast service provider.

The client terminal may request registration and / or authentication from the broadcast headend through the main terminal. Since the main terminal has already registered and authenticated to use the broadcast service in the broadcast headend, the client terminal may transmit a registration and / or authentication request to the headend through the main terminal. In addition, the client terminal may directly request registration and / or authentication at the broadcast headend.

If the client terminal is already registered in the broadcast headend, it may request only authentication for using the broadcast service. In addition, the client terminal may request only terminal registration in order to use the broadcast service later.

The main terminal transmits a registration and / or authentication request for using the broadcast service of the client terminal to the broadcast headend (S215).

When the main terminal receives a registration and / or authentication request for using the broadcast service from the client terminal, the main terminal may transmit it to the broadcast headend. In addition, the main terminal may transmit a separate request for registration and / or authentication of the client terminal to the broadcast headend.

The broadcast headend performs registration and / or authentication for the client terminal through the terminal authentication server (S220).

The terminal authentication server may be located in the broadcast headend device, or may be located in a separate place from the terminal authentication device and connected through a network.

The broadcast headend may allow the terminal authentication server to perform registration and / or authentication of the client terminal when there is a request for registration and / or authentication of the client terminal for using the broadcast service from the main terminal or the client terminal.

The terminal authentication server registers and / or authenticates the client terminal based on the information of the main terminal and the client terminal included in the terminal registration and / or authentication request.

When only the registration request of the client terminal is transmitted from the main terminal or the client terminal, the terminal authentication server may perform only a procedure relating to registration of the client terminal. When the client terminal is already registered, the terminal authentication server may perform only a procedure relating to authentication of the client terminal.

The terminal authentication server registers and / or authenticates the client terminal as a terminal that can use a broadcast service when there is a request for registration and / or authentication of a legitimate client terminal from the registered and authenticated main terminal.

When the terminal authentication server receives a registration and / or authentication request from a legitimate client terminal of a registered and authenticated main terminal, the terminal authentication server determines that the client terminal is a legitimate client terminal of a registered and authenticated main terminal, and uses the broadcast service as a client terminal. And / or authenticate as a capable terminal.

The broadcast headend transmits a terminal authentication message regarding whether the client terminal is registered and / or authenticated (S225).

When the terminal registration and / or authentication procedure of the client terminal is performed by the terminal authentication server, the broadcast headend transmits a terminal authentication message regarding the registration and / or authentication of the client terminal to the terminal registration and / or authentication request. It can transmit to the main terminal or the client terminal.

The terminal authentication message may be sent to the main terminal or may be sent directly to the client terminal.

When the broadcast headend permits the use of the broadcast service of the corresponding client terminal, the broadcast headend may transmit the authentication confirmation of the corresponding client terminal in the terminal authentication message.

When the broadcast headend does not permit the use of the broadcast service of the client terminal, the broadcast headend may include an authentication disallowed message of the client terminal in the terminal authentication message and transmit the same.

When the client terminal requests registration of the terminal only, the broadcast headend may transmit only a registration message regarding whether the client terminal is registered. For example, if the client terminal is normally registered, the client terminal may be transmitted with only a registration confirmation message indicating that the client terminal is registered as a terminal that can use the broadcast service through authentication.

When the main terminal receives the terminal authentication message from the broadcast headend, the terminal confirms the authentication and transmits the terminal authentication confirmation message to the client terminal that wants to use the broadcast service (S230).

The client terminal receiving the terminal authentication confirmation message may request broadcast program information for using the broadcast service (S235).

There may be limitations on the broadcast content available to the client terminal. In the case of restricting the broadcast content available to the client terminal, the client terminal may use only the limited broadcast content among the broadcast contents available to the main terminal.

With respect to the client terminal, when the user requests a registration and / or authentication of the client terminal, the user may define a broadcast content to be used in advance and request a registration and / or authentication. In addition, the broadcast headend may limit broadcast content available to the client terminal based on information of the client terminal and the main terminal thereof in the process of processing a registration and / or authentication request for the client terminal.

The main terminal receiving the request for transmitting broadcast program information from the client terminal may transmit program information about broadcast content available to the client terminal (S240).

The client terminal may search for and select a broadcast program based on the received broadcast program information (S245).

A desired program may be selected from among broadcast contents, for example, a real-time broadcast program or a non-real-time broadcast program including a movie or music.

The client terminal may request the main terminal to watch a desired program (S250).

The user selects a desired program on the client terminal and transmits a transmission request of the corresponding broadcast program to the main terminal.

The main terminal receives a broadcast viewing request from the client terminal and searches for a broadcast program that has received the request (S255).

The main terminal searches for a broadcast program that has received a request among the stored broadcast programs. In addition, if there is no program received from the stored broadcast program, the main terminal may request to transmit the corresponding broadcast program to the broadcast headend.

The main terminal transmits the requested broadcast program (S260).

The main terminal may search for a broadcast program storing the requested broadcast program or receive a new transmission and transmit the newly received program to the client terminal.

Hereinafter, the registration and / or authentication process for the client terminal will be described in more detail.

3 is a flowchart schematically illustrating a registration and / or authentication procedure of a client terminal in a system to which the present invention is applied.

For convenience of explanation, the case where the client terminal requests registration and / or authentication through the main terminal will be described.

For convenience of explanation, the case where both the registration and the authentication request of the client terminal are combined will be described.

In the following description, for the convenience of explanation, the client terminal registers and authenticates the request through the main terminal. However, as described above, the present invention is not limited thereto. In the present invention, the client terminal is directly connected to the broadcast headend. Note that you may request registration and authentication, or you may request only registration or authentication.

The client terminal transmits a registration and / or authentication request message including a certificate of the client terminal for terminal registration to the main broadcast terminal (S210).

The main terminal is already registered and authenticated as a legitimate use terminal of the broadcast service.

The certificate of the client terminal includes information about the client terminal and information about the client terminal belonging to the legitimate main terminal.

The main terminal transmits a registration and authentication request of the client terminal to the broadcast headend (S220).

The broadcast headend transmits the received registration and authentication request to an authentication server that handles registration and authentication of the user.

The registration and authentication request of the client terminal transmitted by the main terminal includes an ID of the main terminal, a certificate of the main terminal, a certificate and registration and authentication request of the client terminal received from the client terminal, and the like.

The main terminal transmits its ID and certificate assigned to the broadcast headend when registering and authenticating as a legitimate user of the broadcast service.

Here, although the registration and authentication request of the terminal is transmitted to the authentication server through the broadcast headend, the main terminal may directly transmit the registration and authentication request of the client terminal to the authentication server.

The authentication server of the broadcast headend performs a necessary authentication procedure (S230).

The authentication server checks the subscriber's information based on the information included in the registration and authentication request of the client terminal.

In addition, the authentication server checks whether the main terminal is registered and authenticated based on the information included in the registration and authentication request of the client terminal. For example, the authentication server may check whether the corresponding main terminal subscribes to the broadcast service based on the ID of the main terminal and the main terminal certificate.

The authentication server determines whether the client terminal is registered and authenticated based on the confirmed subscriber information and whether the main terminal is registered and authenticated. For example, when it is confirmed that the main terminal has subscribed to the broadcast service, the authentication server compares the subscriber information of the main terminal with the subscriber information obtained from the certificate of the client terminal and, when confirmed with the same subscriber information, the certificate of the client terminal. Can be stored in the authentication server of the broadcast headend.

The broadcast headend transmits a message regarding whether the client terminal is authenticated to the main terminal (S240).

The message on whether the client terminal is authenticated includes a main terminal ID and a registration and authentication result (Auth_rst).

The main terminal checks the registration and authentication results of the client terminal included in the message as to whether the client terminal authentication, and transmits a client terminal authentication confirmation message including the registration and authentication results to the client terminal (S250).

When the client terminal authentication confirmation message received by the client terminal includes a message indicating that registration and authentication with respect to the client terminal are completed, the client terminal can use the broadcast service through the main terminal.

Until now, the present invention has been described in the situation where registration and / or authentication for the use of the broadcast service of the main terminal has already been made, but the present invention is not limited thereto, and the registration of the main terminal together with registration and / or authentication of the client terminal. And / or the present invention can also be applied when performing authentication.

4 is a block diagram illustrating a schematic configuration of a broadcast head end, a main terminal, and a client terminal in a system to which the present invention is applied.

The multi-screen service system to which the present invention is applied includes a broadcast head end 400 of a broadcasting company providing a pay broadcasting service, a main terminal 410 and a client terminal 420 of a user subscribed to a pay broadcasting service.

The client terminal 420 may include an output unit 428 for outputting a screen, a transmission and reception unit 424 for receiving broadcast content, transmitting and receiving information necessary for receiving broadcast content, and storing information for receiving broadcast content. The control unit 422 controls the unit 426, the output unit 428, the transceiver unit 424, and the storage unit 426.

The information stored by the storage unit 426 includes information on registration and / or authentication to be transmitted for service use, registration and / or authentication information received from a main terminal or a broadcast headend, broadcast program information, and the like.

 The main terminal 410 is an output unit 418 for outputting a screen, a transmission and reception unit for receiving broadcast content from a broadcast headend, transmitting broadcast content to a client terminal, and transmitting and receiving information necessary for using other broadcast content. 414, a storage unit 416 storing information necessary for receiving broadcast content, an output unit 418, a control unit 412 that controls the storage unit 414, and a storage unit 416.

The storage unit 416 stores the ID of the main terminal, the certificate of the main terminal, information on the certificate and registration and authentication request of the client terminal received from the client terminal, authentication information on the client terminal received from the broadcast headend, and a broadcast program. Information and various broadcast contents.

The broadcast headend 400 includes a transceiver 404 for transmitting and receiving information necessary to provide a broadcast service, an authentication server 406 for performing registration and authentication of a user terminal, and a transceiver 404 and an authentication server 406. The control unit 402 for controlling the.

The authentication server 406 may be located in the broadcast headend 400 or may be located in a separate place and connected to the broadcast headend 400 via a network.

The authentication server 406 stores subscriber information necessary for registration and / or authentication of the broadcast subscriber, and stores the subscriber information included in the registration and / or authentication request for use of the broadcast service received by the transceiver 404. With the subscriber information, the subscriber who has made the registration and / or authentication request is determined whether to register and / or authenticate.

In the description of the present specification, an operation performed in a communication network is performed in a process of transmitting a data and controlling a network in a system (for example, a server or a media center) that manages the communication network, or in a terminal coupled to the network. Work can be done.

In addition, the content described as "include" a specific configuration in the present invention does not exclude a configuration other than the configuration, it means that additional configuration may be included in the scope of the technical idea of the present invention or the present invention.

In the exemplary system described above, the methods are described based on a flowchart as a series of steps or blocks, but the invention is not limited to the order of steps, and certain steps may occur in a different order or concurrently with other steps than those described above. Can be. In addition, those skilled in the art will appreciate that the steps shown in the flowcharts are not exclusive and that other steps may be included or one or more steps in the flowcharts may be deleted without affecting the scope of the present invention.

The above-described embodiments include examples of various aspects. While it is not possible to describe every possible combination for expressing various aspects, one of ordinary skill in the art will recognize that other combinations are possible. Accordingly, it is intended that the invention include all alternatives, modifications and variations that fall within the scope of the following claims.

Claims (1)

Transmitting a broadcast service use request from a first terminal to a second terminal;
Transmitting a broadcast service use request of the first terminal to a broadcast headend providing a broadcast service from the second terminal;
Determining, by the broadcast headend, whether to use broadcast service for the first terminal based on information of the first terminal and the second terminal included in the broadcast service use request;
Transmitting a broadcast service use permission message of the first terminal from the broadcast headend to the second terminal; And
Confirming, by the second terminal, the broadcast service use permission message, and when the broadcast service use of the first terminal is permitted, transmitting a confirmation message regarding the broadcast service use permission to the first terminal. How to provide a multi-screen service.

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