KR20100054006A - System for providing joint-purchase contents in iptv service and method thereof - Google Patents

Abstract

PURPOSE: A cooperative buying system and a method thereof for deciding the purchase charge of the contents for determining purchase cost of the contents through group purchase of a subscriber are provided to differentially apply a cost according to the reservation of purchasing present condition. CONSTITUTION: A group purchase processing system(340) generates commodity information for the reservation of the cooperative buying object contents. A provisioning system(320) receives the commodity information. A subscriber terminal offers the received commodity information is offered to the subscriber terminal. A multicast router performs the multicast join of the subscriber terminal.

Description

IPET is a joint purchase system of content and its method {SYSTEM FOR PROVIDING JOINT-PURCHASE CONTENTS IN IPTV SERVICE AND METHOD THEREOF}

The present invention relates to an IPTV content co-purchasing system and a method thereof, and more particularly, to an IPTV content co-purchase viewing service that determines a purchase price of each content through co-purchasing of each content allocated to a time slot for each viewing time slot. It relates to an apparatus and a method for providing the same.

In general, Internet Protocol Television (IPTV) is a type of digital convergence in which broadcasting and communication are combined with reception of broadcast signals transmitted from a program provider (PP) or terrestrial, cable, and satellite. In addition, a TV receiver connected to a set-top box (STB) provides Internet Contents On Demand (ICOD) services such as TV Internet content and video content (T-VOD) through a high-speed Internet network.

The main components of the IPTV service system include an IPTV headend system, an IP backbone network, an access network, and subscriber terminals (STBs, TVs).

The IPTV service is a TV connected to a set-top box through a broadband high-speed internet network. It provides Internet multimedia contents including broadcasting video, audio, and packet data, and provides interactive IPTV service using a bidirectional communication channel through a return pass server.

A TV terminal connected to a set-top box equipped with a middleware protocol for IPTV service will use Triple Play Service (TPS) including VoIP, high-speed Internet, and IPTV service as a convergence service in the digital convergence era. It receives broadcast and Internet contents through SD / HD Internet Contents On Demand (ICOD) service through next-generation communication network that requires broadband as a premium service from headend system.

However, since the conventional IPTV service uses a unicast scheme for separately providing the same content to each subscriber when the viewing time of the subscriber is different, the bandwidth of each service on the network is large, so that the network of the IPTV delivery network is large. There was a problem that consumes a lot of resources.

According to an embodiment of the present invention, the co-purchase target content is divided into time slots according to viewing time slots, and each allocated co-purchase target content can be booked by a co-purchase method, and the charge is differentially charged according to the purchase reservation status. An IPTV content co-purchase system and a method thereof are provided.

In addition, an embodiment of the present invention and IPTV content co-purchase system and method for transmitting the content in a multicast manner to a plurality of subscribers who purchased a content product of the time zone by grouping the viewing time zone of the content to be purchased jointly To provide.

As a technical means for achieving the above technical problem, the first aspect of the present invention, in the IPTV content co-purchase system, a plurality of co-purchase target content by allocating for a predetermined air time zone reservation by air time zone of the co-purchase target content A joint purchase processing system for generating product information for receiving a product, a provisioning system for receiving product information of the joint purchase target content from the joint purchase processing system and providing the subscriber terminal and the joint purchase content in a multicast manner. And a multicast router performing a multicast join of the subscriber station, wherein the co-purchase processing system receives a reservation request for the co-purchase target content from the subscriber terminal and aggregates reservation status information for the co-purchase target content. And Choi Based on the aggregated availability information, providing content to the IPTV joint purchasing system of determining the co-purchase target content by joint purchasing fee.

As a technical means for achieving the above-described technical problem, the second aspect of the present invention is (a) product information for receiving a reservation by the air time zone of the co-purchase target content by allocating a plurality of co-purchase target content by a predetermined airing time zone Generating (b) transmitting product information for each co-purchase target content to a plurality of subscriber terminals; (c) receiving reservation request information for the co-purchase target content from the subscriber terminal, and receiving the co-purchase target. Counting reservation status information for each content; and (d) determining a joint purchase price for each co-purchase target content based on the final aggregated reservation status information when the reservation time of the co-purchase target content ends. However, the aggregated reservation status information may be stored until the reservation time of the co-purchase target content ends. The present invention provides a method for jointly purchasing IPTV contents that is transmitted to a subscriber terminal in real time.

According to one of the above-described problem solving means of the present invention, it is possible to divide the co-purchase target content into time slots for each viewing time zone, and to make a reservation for each assigned content product by a co-purchase method, so as to differentiate the fee according to the purchase reservation status. Can be imposed as an enemy.

 According to another one of the above-described problem solving means of the present invention, the load of the network by transmitting the content in a multicast manner to a plurality of subscribers who purchased a content product of the corresponding time zone by grouping the viewing time zone of the co-purchased content Can be reduced.

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

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

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

1 is a schematic configuration diagram of a general IPTV broadcasting service system.

Referring to FIG. 1, the IPTV broadcasting system includes a broadcaster 1000, a headend system 2000, a network 3000, and a user terminal 4000.

In addition, the headend system 2000 includes a baseband system 2010, a compression multiplexing system 2020, a conditional access system (CAS) 2030, a back office system 2040, a monitoring system 2050, A media management core (MOC) 2060, a subscriber management system 2070, a data broadcasting system 2080, an electronic program guide (EPG) system 2090, and a return path server system 2100.

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

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

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

The baseband system 2010 receives an MPEG2 broadcast signal from an external program provider (PP) or an analog broadcast signal from terrestrial waves, converts the received source broadcast signal into a SDI (Serial Digital Interface) signal, and converts a frame ( Frames), and distributes video and audio signals from multiple broadcast channels (e.g. 100 channels) via a routine switcher, subtitle generator (CG) and automatic program controller (APC). At least one of an advertisement, a logo, or a subtitle is inserted into the broadcast video and audio signal (signal editing and processing) and transmitted to the compression multiplexing system 2020.

The compression multiplexing system 2020 uses an A / V encoder (A / V Encoder) for broadcasting video and audio signals (Video, Audio) received from the baseband system 2010 for each broadcasting channel (eg, 100 channels). ) To compress the SDI (Serial Digital Interface) video signal to H.264, and to compress the audio signal to MPEG-2 AAC to generate MPEG-2 TS (Transport Stream), and to compress compressed broadcast video and audio -2 after multiplexing data broadcasting data and EPG information (PSIP / PSI / SI information) generated by a data encoder and a PSI / SI generator together with the TS signal When the received MPEG-2 TS signal is used in the reception restriction technique, the TS-2 may be inputted to a scrambler, encrypted, and finally IP packetized to transmit an IP packetized TS (Transport Stream) broadcast signal.

Also, optionally, the reception restriction system 2030 may be used to prevent illegal viewing and illegal copying of program recommended content.

The reception restriction system 2030 performs encryption of the real-time channel and pre-encryption of the VOD content, and controls viewing authority so that only the authenticated user can use the channel and the content. In order to prevent illegal copying of IPTV contents, a digital rights management (DRM) scheme may be used instead of the reception restriction system 2030.

The back office system 2040 is a provisioning system and provides a billing processing function for the use of the IPTV program service for each subscriber.

The monitoring system 2050 is a control system. The monitoring system 2050 may monitor a transmission failure of an A / V broadcast signal for IPTV broadcasting, a reception failure by monitoring a downlink of an IPTV headend system, and confirm subtitles.

The media management system 2060 is a system that manages various business process information (program organization information, location information, contract information, product information, etc.) for operating a broadcasting business. The media management system 2060 integrates and manages the information flow through organic coupling with each system in the center of the broadcasting center.

The media management system 2060 manages broadcast program organization information, content and media management information, contract information of a program provider (PP) and a content provider (CP), and product information, and manages each system in the center of a broadcasting center. Through organic integration, it can act as a coordinator to manage and manage the flow of information.

In addition, the media management system 2060 may include contract management, media and content metadata management, EPG information acquisition / management, broadcast schedule information, and real time broadcasting in terms of acquisition. It provides VOD channel formation management, agent management with interworking with each subsystem, VOD catalog creation management and various product management.In terms of analysis, marketing analysis reporting, delivery such as settlement of CP / CA, subscriber viewing propensity, etc. ), Broadcast transmission monitoring, video server transmission management and VOD subscriber authentication, transmission result recording / management for settlement with CP / CA, and data synchronization with each subsystem.

The subscriber management system 2070 provides membership registration and termination and member information management for IPTV services.

The data broadcasting system 2080 authors, verifies, organizes, and transmits the data broadcasting data.

The data broadcasting system 2080 includes a data agent manager (PSI) for managing data encoding, a PSI / SI generator (PSI) for generating program specific information / service information (SI). / SI Generator), Data Server / Data Encoder for encoding data broadcasting data into broadcast video and audio signals, and Multiplexer Manager for managing multiplexing functions of data into the broadcast video and audio signals Manager) and a scheduler user interface (Scheduler UI).

In addition, the data broadcasting system 2080 may use the A / V encoder (A / V Encoder) for A / V data provided from an A / V server according to the terrestrial Application Configuration Access Protocol (ACAP) data broadcasting standard. Compressing the compressed video and audio signals from the application by the authoring tool to the data server / data encoder and PSI / SI (Program Specific Information / Service). Information) Multiplexed by a multiplexer together with data broadcasting data and EPG information (PSIP / SI information) generated by the generator to encode and transmit broadcast program data and related information from the collection and storage of data broadcasting programs. have.

The EPG system 2090 includes an EPG server and provides an electronic program guide (EPG) service to the user terminal 4000.

The return path server system 2100 processes bidirectional data by a data provider (DP), provides online bill transfer from the user terminal 4000, usage history / billing interworking processing of bidirectional data, and personalization authentication processing. , And receive bidirectional data for the program recommendation service and transmit the corresponding response data to the user terminal 4000 in unicasting.

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

The user terminal 4000 is an apparatus for using an Internet broadcasting service, and generally includes an IPTV, a set top box (STB), and a remote controller. The IPTV outputs broadcast content received from the headend system 2000 and transmits a user response signal received through the remote controller to the headend system 2000 through a return channel of the set top box.

The user terminal may use any one of a TV with an IP STB or an IP set-top box (IP STB), a computer, a notebook, or a personal portable terminal connected to the user's TV.

The IP set-top box includes a hardware layer composed of STB hardware such as a CPU, a media processor, flash RAM, and an Ethernet module, a system software layer including a system driver such as a device driver and an operating system, a Java Virtual Machine (JVM), Middleware layer with Conditional Access System (CAS) module and Digital Rights Management (DRM) interface module, streaming protocol (RTP, RTSP), MPEG2, MPEG4, MPEG7, H.264, WMV- It may include four layers of an application layer that supports various multi codecs such as 9 and includes an electronic program guide (EPG) for selecting an IPTV service channel. In this case, the subscriber's IP set-top box may be assigned an IPv4 address or an IPv6 address.

Hereinafter, a system and method for providing a joint purchase service of IPTV contents according to an embodiment of the present invention will be described with reference to FIGS. 2 to 6.

2 is a diagram illustrating a connection relationship of an IPTV content co-purchase system according to an embodiment of the present invention.

2, the connection relationship between the IPTV content co-purchase system 200 according to an embodiment of the present invention is the content provider 100, content provider 200, IPTV co-purchase system 300, subscriber terminal ( 400 and the Internet 500.

The broadcaster 100 provides various broadcast programs, that is, broadcast contents, to the interactive broadcast system 200. In this case, the provided broadcast content may include related additional information and an EPG for such additional information.

The content provider 200 provides paid content such as a movie to the IPTV content co-purchase system 300 according to a publishing contract concluded with the IPTV content co-purchase system 300.

The IPTV content joint purchase system 300 divides the joint purchase target content into time slots according to the airing time zones, and reserves the respective allocated joint purchase target contents by the joint purchase method to differentiate the rates according to the purchase reservation status. To impose.

The subscriber station 400 is a device for using the IPTV broadcast service and the IPTV content search service, and includes a broadcast output device 410, a set-top box 420, and a remote controller 430.

The broadcast output device 410 outputs a broadcast program and content received from the IPTV content co-purchase system 300, and transmits the user response signal received through the remote controller 430 through the return channel of the set-top box 420. Delivery to the content co-purchase system 300.

The set-top box 420 is a digital broadcast receiver for receiving broadcast programs and contents transmitted through the Internet 500. The set-top box 420 receives and provides EPG information related to all programs as well as image data and provides them to the subscriber. In addition, after receiving the information from the IPTV content co-purchase system 300, the set-top box 420 outputs and displays the information received from the IPTV content co-purchase system 300 through the screen of the broadcast output device 410, Subscribers can easily search for desired broadcast program and content information.

The Internet 500 transmits broadcast content provided by the IPTV content retrieval system 200 to the set-top box 420 of the subscriber terminal 400, and transmits a response signal from the subscriber terminal 400 to the IPTV content co-purchase system 300. Internet Protocol (IP) network using a unicasting protocol or a Multicast Routing Protocol.

3 is a detailed block diagram of an IPTV content co-purchase system according to an embodiment of the present invention.

Referring to FIG. 3, the IPTV content co-purchase system 300 includes a subscription / billing system 310, a provisioning system 320, a media management system 330, a co-purchase processing system 340, a database 350, and a reception. Constrained system 360 and multicast router 370.

The subscription / billing system 310 manages the subscription information and the billing information of the customer for providing the IPTV content co-purchase service, and transmits the subscription information of the corresponding customer to the provisioning system 320. In addition, when the subscription / billing system 310 receives the purchase request of the subscriber for the content whose purchase price is determined through the co-purchase, the purchase of the corresponding co-purchase target content is based on the broadcast time zone in which the corresponding co-purchase target content is allocated. Charge the subscribers.

The provisioning system 320 transmits subscription information of the IPTV service subscription customer and subscription product information of the customer received from the subscription / billing system 310 to the joint purchase processing system 340.

The media management system 330 receives the IPTV program information (EPG) from the broadcaster 100 and transmits it to the joint purchase processing system 340. In addition, the media management system 330 manages the publishing contract information and the information on the co-purchase target content with the content provider 200, and the co-purchase processing system 340 to list the co-purchase target content received from the content provider 200. ).

The co-purchase processing system 340 receives the customer's subscription information and the customer's subscription product information from the provisioning system 320 and stores them in the database 350, and lists the co-purchase target contents from the media management system 330. The IPTV program information (EPG) is received and stored in the database 350, respectively.

The joint purchase processing system 340 extracts the joint purchase target content by comparing the list of the joint purchase target content received from the media management system 330 and the IPTV program information (EPG), and then previews each joint purchase target content in advance. The packaged content goods are divided into predetermined broadcast time zones and then the packaged content goods information is transmitted to the provisioning system 330.

Here, the co-purchase processing system 340 divides the co-purchase target content into time slots divided by predetermined broadcast time zones, and the unit of the slot may be a predetermined unit, for example, day / hour / minute. Can be.

In addition, the co-purchase processing system 340 may divide the co-purchase target content equally over the entire period, or may assign and assign only a certain date and time zone. By doing so, each co-purchased content is packaged in the form of a content product that is sold at a specific airtime, and then the user's set-top box through the IPTV platform along with the content product information, for example, product name, time zone, purchase reservation status, and price. Send to 420.

In addition, the co-purchase processing system 340 may allocate the broadcast time zone of the co-purchase target content to overlap each other. For example, when the content having a broadcast time of 2 hours is allocated at intervals of 10 minutes, the start time of each content may be allocated as 1:00, 1:10, and 1:20, respectively.

The database 350 stores various information necessary for using the IPTV co-purchase service, for example, subscriber information, subscription product information, co-purchase content information, and packaged content product information.

The reception restriction system 360 performs encryption of the real-time channel and pre-encryption of the VOD content, and controls the viewing authority, thereby allowing the use of the channel and the content only for the authenticated user.

The multicast router 370 performs a multicast join of the set-top box 420 to service each co-purchased content to a plurality of subscribers who have purchased the content in a multicast transmission method.

4 is a diagram illustrating a method of allocating co-purchase target content to a time slot according to an embodiment of the present invention.

Referring to FIG. 4, the co-purchase processing system 340 divides each co-purchase target content into time slots according to the broadcast time slots at predetermined intervals, and then the subscribers in the form of co-purchase of the content goods packaged in each time slot. Make a purchase reservation. As such, the content goods allocated to each time slot are classified into differentiated services according to the purchase reservation status of the subscriber.When the purchase and viewing of the actual user are made, according to the sales conditions of the corresponding time, that is, the pricing based on the number of reservations Provide content services.

As described above, the IPTV content co-purchase system 300 of the present invention groups the user's viewing time zones of various distributions into a predetermined time zone, and provides a synchronized service for the purchase of the user in the grouped time zones. do.

5 is a diagram illustrating a method for jointly purchasing IPTV contents according to an embodiment of the present invention.

In step S11, the media management system 330 transmits a list of the co-purchase target contents provided by the publishing contract with the content provider 200 to the co-purchase processing system 340, and co-purchase processing in step S12. The system 340 stores the list of received co-purchased contents in the database 350.

In operation S13, the provisioning system 320 transmits the subscriber information received from the subscription / billing system 310 and the subscriber's subscription product information to the co-purchase processing system 340.

In step S14, the co-purchase processing system 340 stores the subscriber information received from the provisioning system 320 in the database 350 along with the subscription product information of the corresponding subscriber.

In step S15, the co-purchase processing system 340 receives the organization information of the content by the media management system 330, stores it in the database 350, and then proceeds to step S16 and receives in step S15. The co-purchase target content is extracted by comparing the organization information of one content with the list of co-purchase target contents stored in step S12.

In step S17, the co-purchase processing system 340 allocates the extracted co-purchase target content to a predetermined broadcast time zone and packages each content product, and then proceeds to step S18 to process the product of the packaged content product. Information, for example, a channel list, content name, viewing time zone, etc. of the co-purchase target content is transmitted to the provisioning system 320. That is, the co-purchase processing system 340 allocates the co-purchase target content to time slots divided by various air time zones in order to package each co-purchase target content in the form of a product sold for each airing time.

In operation S19, the provisioning system 320 may display product information of the co-purchase target content packaged in the form of a product, for example, a channel list of the co-purchase target content, a content name, and a broadcast time zone through the IPTV platform. Transmit to set-top box 420.

In operation S20, the set-top box 420 displays product information of the co-purchase target content received from the provisioning system 320 on the screen of the broadcast output device 410.

In step S21, the set-top box 420 transmits a reservation request for the content product that the subscriber wants to purchase jointly to the joint purchase processing system 340.

In step S22, the co-purchase processing system 340 receives the reservation request information of each subscriber from the set-top box 420, aggregates the number of reservations for each content product, that is, the co-purchase target content, and based on the price By calculating a purchase fee, etc., the reservation status information of each co-purchase target content is extracted. That is, the subscriber may make a reservation for the content product that he / she wants to purchase by inquiring the reservation status information of the content product in real time until the co-purchase reservation time ends through the broadcast output device 410.

In step S23, the joint purchase processing system 340 transmits reservation status information for each product, for example, the number of applicants and the fee, to the set-top box 420 of each subscriber. At this time, the reservation status information for each product is calculated and displayed in real time when the subscriber makes a purchase reservation, and performs the same processing as the purchase reservation when the subscriber changes the purchase reservation.

When the co-purchase reservation time ends, the co-purchase processing system 340 transmits the final reservation status information of the content goods for each time slot to the provisioning system 320 in step S24.

In operation S25, the provisioning system 320 determines the co-purchase fee of the content goods for each time slot based on the final reservation status information of the content goods for each time slot received from the co-purchase processing system 340. Store at 350.

6 is a flowchart illustrating a method of viewing IPTV co-purchased content according to an embodiment of the present invention.

In step S31, the set-top box 420 transmits purchase request information for the specific content product that the subscriber wants to purchase to the co-purchase processing system 340 for the content product for which the co-purchase reservation time expires. In this case, the subscriber may apply for a content product of a time slot other than the co-purchase reservation product, and in this case, the fee is applied to the sales condition corresponding to the applied time slot.

In step S32, the co-purchase processing system 340 is a media management system such that the co-purchase fee of the corresponding content product is charged based on the broadcast time of the corresponding content product with respect to the purchase request information of the subscriber for the content product to be purchased. In step 330, the purchase request information of the corresponding subscriber is transmitted.

In operation S33, the media management system 330 charges a fee for the content product requested by the corresponding subscriber based on the co-purchase fee generated by the provisioning system 320. Then, the billing details of the subscriber is sent to the subscription / billing system 310 to charge the subscriber.

In step S34, the media management system 330 requests the reception restriction system 360 to perform authentication and encryption on the content goods requested by the subscriber, and in step S35, the reception restriction system 360 sends the media. Authentication and encryption of the content goods requested from the management system 330 is performed.

In step S36, the media management system 330 requests a multicast join request to the set-top box 420 so that the subscriber's set-top box 420 joins the multicast, and in step S37, the subscriber's set-top box. 420 completes the joining to the multicast router 370 to view the corresponding content goods in a multicast transmission method.

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

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

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

1 is a schematic configuration diagram of a general IPTV broadcasting service system.

2 is a diagram illustrating a connection relationship of an IPTV content co-purchase system according to an embodiment of the present invention.

3 is a detailed block diagram of an IPTV content co-purchase system according to an embodiment of the present invention.

4 is a diagram for describing a method of allocating co-purchase target content to a time slot according to an embodiment of the present invention.

5 is a diagram illustrating a method for jointly purchasing IPTV contents according to an embodiment of the present invention.

6 is a flowchart illustrating a method of viewing IPTV co-purchased content according to an embodiment of the present invention.

Claims (8)

In the IPTV content joint purchase system, A joint purchase processing system for generating a product information for receiving reservations for each broadcast time of the joint purchase target content by allocating a plurality of joint purchase target content for a predetermined broadcast time; Provisioning system for receiving the product information of the co-purchase target content from the co-purchase processing system to provide to the subscriber terminal; Multicast router for performing the multicast join of the subscriber station to transmit the co-purchase content in a multicast manner Including, The co-purchase processing system receives a reservation request for the co-purchase target content from the subscriber terminal, aggregates reservation status information for the co-purchase target content, and based on the final aggregated reservation status information, the co-purchase target content. IPTV content co-purchase system to determine the respective co-purchase fee. The method of claim 1, The joint purchase processing system, the joint purchase system of the IPTV content is to transmit the aggregated reservation status information to the subscriber terminal in real time until the reservation time of the joint purchase target content ends. The method of claim 1, A reception restriction system for allowing the subscriber terminal to view the joint purchase target content by encrypting the joint purchase target content received from the subscriber station and performing subscriber authentication for the subscriber terminal. Co-purchase system of the IPTV content further comprising. The method of claim 1, A subscription / billing system that charges a purchase fee of the co-purchased content to the subscriber based on a broadcast time zone for the co-purchased content, when the purchase request for the co-purchased content is received from the subscriber terminal. Co-purchase system of the IPTV content further comprising. In the IPTV content joint purchase method, (a) allocating a plurality of co-purchased contents for a predetermined airing time zone to generate product information for receiving reservations for each airing time of the co-purchased content; (b) transmitting the product information for each of the co-purchase target contents to a plurality of subscriber terminals; (c) receiving reservation request information for the co-purchase target content from the subscriber terminal and counting reservation status information for the co-purchase target content; and (d) determining the co-purchase fee for each co-purchase target content based on the final aggregated reservation status information when the reservation time of the co-purchase target content ends. Including, And the aggregated reservation status information is transmitted in real time to the subscriber terminal until the scheduled time of the co-purchase target content ends. The method of claim 5, The joint purchase target content is a joint purchase method of IPTV content is transmitted to the subscriber terminal that purchased the joint purchase target content in a multicast manner. The method of claim 5, When the purchase request for the joint purchase target content for which the joint purchase price is determined is received from the subscriber terminal, performing authentication and encryption on the purchase requested joint purchase target content. Joint purchase method of the IPTV content further comprising. The method of claim 5, When the purchase request for the co-purchase target content from which the co-purchase fee is determined is received from the subscriber terminal, the purchase fee of the co-purchase target content is charged to the subscriber based on the broadcast time zone of the requested co-purchase target content. Steps to Joint purchase method of the IPTV content further comprising.

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