KR100701051B1 - A system for electronic commerce of a digital contents using digital multimedia broadcasting and a method thereof - Google Patents

Abstract

The present invention relates to a digital content electronic commerce system and an electronic commerce method using a digital multimedia broadcasting that allows a user to purchase a digital content to be advertised in real time while watching an advertisement using a mobile communication terminal having a DMB reception function. Digital multimedia broadcasting system that includes digital content and commercial program to be sold in digital multimedia broadcasting signal and transmits it, and separates commercial and digital content from received broadcasting signal and sends certificate request signal when purchase request command is input. When the certificate request signal is received from the mobile communication terminal and the mobile communication terminal, payment processing is performed for the content requested for authentication based on the transaction information. It provides a digital content electronic commerce system using a digital multimedia broadcasting to be configure it to generate a certificate to the content authentication server, transmitting to the mobile terminal via a wired or wireless communication network.

Digital Multimedia Broadcasting, Digital Content, E-Commerce

Description

Digital Contents Electronic Commerce System and Digital Commerce Method Using Digital Multimedia Broadcasting {A SYSTEM FOR ELECTRONIC COMMERCE OF A DIGITAL CONTENTS USING DIGITAL MULTIMEDIA BROADCASTING AND A METHOD THEREOF}

1 is a view schematically showing a content e-commerce system of the present invention.

2 (a) is a diagram schematically showing the configuration of a digital multimedia broadcasting system according to the present invention.

Figure 2 (b) is a diagram schematically showing the configuration of a digital multimedia media terminal used in the present invention.

Figure 2 (c) is a diagram schematically showing the configuration of a content authentication server used in the present invention.

3 is a flowchart illustrating a digital content providing process of a digital multimedia broadcasting system according to an exemplary embodiment of the present invention.

4 is a flowchart illustrating a digital content purchase process in a digital multimedia broadcasting terminal according to an embodiment of the present invention.

5 is a flowchart illustrating a process of authenticating a content authenticator according to an exemplary embodiment of the present invention.

The present invention relates to a digital content electronic commerce system and a digital content electronic commerce method using digital multimedia broadcasting (hereinafter referred to as 'DMB'), and more particularly, to encryption using DRM (Digital Right Management) technology. The digital content is transmitted to the mobile communication terminal together with the commercial program of the digital content, the digital content is temporarily stored in the mobile communication terminal, and the digital content is encrypted when the certificate is received from the content authentication server. The present invention relates to an electronic commerce system and a method for digital content that is released and made available.

Currently, digital content e-commerce related businesses using wired / wireless communication such as ringtones, music videos, coloring, and wallpaper are generating huge profits. In the conventional digital content electronic commerce method through wired and wireless communication, a digital content is selected through a wired or wireless network or a portal server for supplying digital content to select a digital content, and a purchase is made. Downloading digital content via wired or wireless networks has been common. However, such a conventional method has a certain limitation on the size of the content, and a call charge is provided separately from the use rate of the content itself, which imposes an economic burden on the content user, thereby preventing the use of digital content.

Meanwhile, DMB (Digital Multimedia Broadcasting) refers to a broadcast service that digitally modulates various multimedia signals such as voice and video and provides them to a fixed or portable, vehicle receiver through a ground antenna or satellite.

Broadcast programs and contents provided from broadcast program providers (PPs) and content providers (CPs) within a DMB system are compressed and modulated, converted into digital signals, and then audio channels, video channels, data channels, and PSIs. It is delivered to a DMB dedicated terminal through a Program Specific Information (SI) / Specific Information (SI) channel. According to the DMB system, a large amount of data can be effectively reduced by compressing a large amount of data using data compression technology. Also, various types of data are included in a broadcast signal as well as an audio program, a video channel, Since the data can be simultaneously transmitted through a data channel or the like, it is possible to provide a data broadcast service.

The inventors of the present invention have found that the above-mentioned problem of the existing digital content electronic commerce can be solved when the digital content commercial and the digital content are transmitted to the mobile communication terminal together using the DMB broadcasting channel. To complete.

The present invention provides a digital content electronic commerce system and an electronic commerce method that includes transmitting encrypted digital content in a broadcast signal and then downloads a certificate for digital content that the user wants to purchase, thereby reducing the cost of downloading the digital content. It aims to provide.

In addition, an object of the present invention is to provide a digital content electronic commerce system and electronic commerce method that allows a viewer to purchase the digital content in real time immediately while watching the digital content commercial through a mobile communication terminal having a DMB reception function. .

Other objects and advantages of the present invention will be described below, which is not limited to the matters disclosed in the claims of the present invention and the disclosures of the embodiments thereof, but also to the broader ranges by means and combinations within the range that can be easily contemplated therefrom. Add that it will be included.

In order to achieve the above technical problem, the present invention provides a digital content electronic commerce system using digital multimedia broadcasting,

A DMB broadcasting system that processes digital content and a commercial program of digital content into broadcast signals;

The broadcast signal received from the DMB broadcasting system is classified into a commercial program and digital content. When the reception of the digital content is completed, the digital content is stored for a certain period, and the digital content information and the e-commerce related menu are displayed on the display screen. A mobile communication terminal generating a certificate request signal including transaction information when the purchase command of digital content is input and transmitting the same through a wired or wireless communication network; And

When the certificate request signal is received from the mobile communication terminal, payment processing for the authentication requested content is performed on the basis of transaction information. If the purchase authentication of the digital content is normally performed, a certificate for the paid content is generated and the wired / wireless communication network is generated. It provides a digital content electronic commerce system using a digital multimedia broadcasting, including a content authentication server for transmitting to the mobile communication terminal through.

The transaction information may include a mobile communication terminal number, identification information of a digital content, and a payment method.

Preferably, the mobile communication terminal deletes the digital content when the purchase of the digital content is not made within a predetermined period of time.

The content authentication server may be connected to a server of a mobile communication company or a server of a financial institution through a wired communication network to charge a payment amount for digital content purchase.

The DMB broadcasting system,

An advertisement program database for storing and managing an advertisement program of digital content;

A content database for storing and managing digital content including content data encrypted by DRM and content information representing information about the content data;

A broadcast controller configured to receive an advertisement program from the advertisement program database according to a broadcast schedule, and extract digital content to be transmitted together with the advertisement from the content database;

A DMB broadcasting transmitter configured to process a commercial program and digital content from the broadcast controller to generate and transmit a broadcast signal; And

And a multiplexer for multiplexing the broadcast signal received from the DMB broadcast transmitter and transmitting the same to a transmission facility.

In addition, the content authentication server,

A signal transmission and reception unit for receiving a certificate request signal from the mobile communication terminal through a wired / wireless communication network and transmitting an authentication result to the mobile communication terminal;

An authentication processor for receiving a certificate request signal from the signal transmission / reception unit and requesting payment processing according to a purchase history inquiry result of the requested digital content, generating a certificate for the digital content for payment and transmitting the certificate to the signal transmission / reception unit;

A transaction history management unit which, when receiving the certificate inquiry request signal from the authentication processing unit, searches a database storing a transaction history of a content requester and a previously issued certificate and transmits an inquiry result to the authentication processing unit;

When the payment processing request is received from the authentication processing unit, the payment processing is performed based on the payment information received from the mobile communication terminal, and preferably includes a payment unit for transmitting the payment processing results to the authentication processing unit.

The content authentication server may further include a billing processing unit connected to a server of a mobile communication company or a server of a financial institution through a wired / wireless communication network to perform billing of a payment amount based on a settlement processing result received from the settlement unit. .

In addition, the present invention is a mobile communication terminal capable of receiving digital multimedia broadcasting (DMB),

A tuner for receiving a broadcast signal selected in synchronization with a predetermined frequency among the digital multimedia broadcast signals;

A broadcast signal processor for separating the broadcast signal received from the tuner into an advertisement program and digital content;

A digital content manager configured to receive digital content from the broadcast signal processor, determine whether reception of the received digital content is completed, and temporarily store and manage digital content that is determined to have been received;

A broadcast reproducing unit for decoding and playing the commercial program received from the broadcast signal processing unit;

A digital content display control unit which controls the digital content manager to display digital content information included in the digital content and an electronic commerce menu of the digital content on a display screen;

A content authentication unit for generating a certificate request signal for digital content when receiving a purchase request command and payment information from a user, and releasing encryption of the temporarily stored digital content and storing it for a long time when receiving a certificate; And

And a wired / wireless communication module for transmitting a certificate request signal received from the content authentication unit to a content authentication server through a wired / wireless communication network and transmitting a certificate received from the content authentication server to the content authentication unit. .

The certificate request signal preferably includes transaction information such as a digital content ID, order information and payment method of the digital content.

The digital content management unit may delete content data that has not been transacted when a predetermined period of time has elapsed.

Meanwhile, the present invention provides an electronic commerce method of digital content using digital multimedia broadcasting.

A broadcast signal transmitting step of processing digital content into a broadcast signal together with a commercial program of digital content and transmitting the same through a digital multimedia broadcasting facility;

A broadcast signal processing step of receiving, by the mobile communication terminal, a broadcast signal, separating the broadcast program and the digital content, and decoding and playing the broadcast program;

A reception completion determination step of determining whether reception of the separated digital content is completed;

A digital content storage step of storing the digital content for a predetermined time when it is determined that reception of the determination result is completed;

A display step of displaying information on digital content and an electronic commerce menu of the digital content on a display screen;

A user requesting a content purchase menu and inputting payment information, generating a certificate request signal for the corresponding digital content and transmitting the certificate request signal through a wired / wireless communication network;

An authentication step of, when the content authentication server receives a certificate request signal, performs payment processing for the corresponding digital content purchase, generates a certificate for the digital content for which payment processing is completed, and transmits the certificate to the mobile communication terminal through a wired / wireless communication network; And

It provides a digital content electronic commerce method using a digital multimedia broadcasting comprising a decryption step of decrypting the digital content based on the certificate received by the mobile communication terminal.

The authentication step, if the content authentication server receives a certificate request signal, a certificate presence determination step of determining whether a certificate exists for the requested content by querying the transaction history of the content requester;

If it is determined that the certificate does not exist, the payment step of performing a payment for the digital content purchase using the payment information included in the certificate request signal;

An authentication request step of requesting content purchase authentication when payment processing is completed;

A certificate issuing step of determining whether authentication is normally performed and issuing a certificate if authentication is normally performed; And

The method may further include a certificate transmitting step of transmitting the issued certificate to the mobile communication terminal.

The certificate transmitting step may further include determining whether the mobile communication terminal has received a certificate, and canceling payment of digital content and issuing a certificate if the certificate is not received.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that the detailed description of the known function or known configuration or obviously unnecessarily obscures the subject matter of the present invention, the detailed description thereof will be omitted.

FIG. 1 schematically illustrates an electronic commerce system of digital content including a DMB broadcasting system 100, a mobile communication terminal 200, a content authentication server 300, a DMB satellite 400, and / or a terrestrial antenna 500. It is.

The DMB broadcasting system 100 stores and manages commercial data and digital content provided from various broadcast program providers or digital content sellers, such as regular broadcasts and commercial broadcasts, in a database. The relevant commercial is selected to generate a broadcast signal using the digital content data together with the commercial program. The DMB broadcasting system 100 transmits the broadcast signal to the DMB satellite 400 and / or the terrestrial antenna 500 by including digital content in the PSI, DVB-SI, or data channel, and has a size of one TS (Transport). If it is too large to be transmitted in a stream), it is divided and transmitted for each TS. Since the digital content transmitted with the commercial should be transmitted periodically, it is preferable that the DMB broadcasting system 100 transmits at an appropriate period according to the size of the content in order to eliminate the possibility of wasting bandwidth.

The digital content includes all contents that are provided as a download method to the mobile communication terminal through wired or wireless communication such as a game, a ringtone, a music video, a ring tone, and the like. Digital content is composed of content information and content data. Content information includes ID for identifying content, content name, total content size, size of content to be transmitted, price of content, temporary use of content, and other messages. do. The content data is provided in encrypted form by DRM technology.

The mobile communication terminal 200 is a terminal having a DMB reception function for receiving and reproducing a broadcast stream from the DMB satellite 400 or the terrestrial antenna 500. When receiving a broadcast signal, the mobile communication terminal 200 separates the commercial program and the digital content from the broadcast signal. After that, the commercial program is decoded and reproduced, and when the reception of digital content is completed, the commercial program is stored in a temporary storage area for a predetermined time. However, when only a part of one digital content is received, it is not stored, and the temporarily stored digital content is stored until a purchase is made or other digital content is received.

When the reception of the digital content is completed, an electronic commerce related menu of digital content such as digital content purchase and content trial use is displayed on the display screen of the mobile communication terminal 200 together with the content information. When the mobile terminal 200 receives a content purchase command from the user, the mobile terminal 200 accesses the content authentication server 300 through a wired / wireless communication network, transmits a certificate request signal, and receives a certificate from the content authentication server 300. Decrypts the digital content and stores the digital content in a long-term storage area.

The content authentication server 300 is a server for authenticating the right to use digital content according to digital content purchase. When the certificate request signal is received from the mobile communication terminal 200, the content authentication server 300 is based on transaction information included in the content use authentication request signal. The payment process is performed according to the content purchase, and if the payment is normally made, a certificate for granting the right to use the content is generated and transmitted to the mobile communication terminal 200. The content authentication server stores and manages the existing transactions of the mobile terminal user as a database including the digital content ID, the content name, the purchase date, the content price, and the certificate issued to the content. In connection with the electronic payment module of the mobile communication terminal, digital content purchase and payment processing may be performed, and billing may be performed in connection with a financial institution or a mobile communication service provider. In particular, when the content authentication server 300 is provided by a mobile communication provider, charging can be conveniently performed by including the digital content purchase amount in the mobile communication fee.

2 (a) schematically shows a DMB broadcasting system according to the present invention. Referring to FIG. 2 (a), the DMB broadcasting system 100 according to the present invention includes a content database 110, a broadcast program database 120, a broadcast controller 130, and a DMB broadcast transmitter provided through wired or wireless communication. 140 and the multiplexer 150 as main components.

A DMB broadcasting system generally multiplexes an MPEG encoder, broadcast data or content data, which is encoded and encoded according to the Motion Picture Experts Group (MPEG) standard by inputting a video / audio signal, and adds a carrier wave to the result data. And a radio wave output unit for outputting radio amplified broadcast signals as airwaves.

The content database 110 stores and manages digital content including digital content related information provided from a digital content seller and digital content data subjected to DRM processing by a DRM server (not shown). Digital content information includes information such as content identification ID, content name, total content size, transmission content size, price, whether the content is used for trial and other messages, and the number of trials available when the content is provided for trial use. Contains restrictions on use.

DRM refers to a technology that securely protects the rights and interests of content providers for digital rights management, prevents illegal copying, and provides support for the creation, distribution, and management of contents such as charging royalties and settlement services. DRM can include digital rights management technology that ensures that only legitimate users use content and pay the appropriate fees, software and security technologies for copyright approval and enforcement, payment and payment technology. It may be supported by a digital object identifier (DOI), a content identifier, an index for recording data necessary for electronic commerce, a watermarking technology for illegal copying and tampering prevention, and the like. In addition, if the content is provided for trial use, a technique for granting the right to use the trial frequency, the test user, or the like may be used. On the other hand, in the case of digital content provided for trial use, the digital content is stored in the content database in the form of a certificate including a certificate granting the use right along with information such as the number of trial use times.

The commercial program database 120 stores and manages commercial program data converted into a standard format for broadcasting according to the digital broadcasting standard.

The broadcast controller 130 receives the commercial program from the commercial program database 120 according to the broadcast schedule, extracts the digital content to be transmitted with the commercial from the content database 110, and transmits the digital content to the DMB broadcast transmitter.

The DMB broadcasting transmission unit 140 transmits digital content and commercial programs to transmit digital content together with commercial programs through PSI (Program Specific Information) and DVB-SI (Digital Video Broadcasting-Service Informaton) of the MPEG-2 Part1 system. To generate a broadcast signal and transmit it to the multiplexer 150. Digital content may also be transmitted over data channels.

The multiplexer 150 multiplexes the broadcast signal received from the DMB broadcast transmitter 140 and transmits the multiplexed broadcast signal to the terrestrial DMB antenna 500 or the DMB satellite 400.

Figure 2 (b) schematically shows the configuration of a mobile communication terminal according to the present invention. Referring to FIG. 2B, the mobile communication terminal includes a tuner 210, a broadcast signal processor 220, a digital content manager 230, a broadcast playback unit 240, a content authenticator 250, And a wired / wireless communication module 260, a digital content information display control unit 270, and a display module 280 as main components.

 The tuner 210 receives a broadcast signal selected in synchronization with a predetermined frequency among the DMB broadcast signals transmitted from the terrestrial DMB antenna or the DMB satellite and transmits the received broadcast signal to the broadcast signal processor 220.

The broadcast signal processor 220 separates the broadcast signal into commercial data and digital content data, and transmits the commercial data to the broadcast reproduction unit 240 and the digital content data to the digital content manager 230.

The digital content manager 230 determines whether the reception of the entire digital content data received from the broadcast signal processor 220 is completed and controls to store the received digital content in a memory unit (not shown) in the mobile communication terminal. . The memory unit includes a temporary storage area and a permanent storage area, and the temporary storage area is stored until the received digital content is purchased or other digital content is received to overcome the limitation of the storage capacity of the memory. However, the purchased digital content is transferred from the temporary storage area to the permanent storage area by the digital content manager 230 and stored semi-permanently until there is a delete command by the user.

The broadcast reproducing unit 240 is a general reproducing apparatus including an audio and video signal reproducing module. When the broadcast reproducing unit 240 receives the commercial program data from the broadcast signal processing unit 220, the broadcast reproducing unit 240 reproduces the data on the mobile communication terminal.

When the content purchase request command and payment information are input from the user, the content authenticator 250 generates a certificate request signal based on the payment information and transmits the certificate request signal to the communication unit 220. Thereafter, when the certificate is received by the content authenticator 250, the digital content is decrypted to be converted into a state in which the digital content can be executed, and the received certificate is stored and managed in the memory unit of the mobile communication terminal.

The wired / wireless communication module 260 is for connecting to an external server through a wired / wireless communication network, and transmits a certificate request signal to the content authentication server 300 through wired / wireless communication, and receives an authentication result from the content authentication server 300. The authentication result is transmitted to the content authenticator 230.

 When the commercial is reproduced on the mobile communication terminal, the digital content information display control unit 270 receives the digital content transmitted together with the commercial from the digital content management unit 230 to display the digital content information and the digital content on the display screen of the mobile communication terminal. Display an e-commerce related menu for digital content.

2 (c) schematically shows a content authentication server according to the present invention. Referring to FIG. 2 (c), the content authentication server 300 includes a signal transmission and reception unit 310, an authentication processing unit 320, a transaction history management unit 330, and a payment unit 340.

When the signal transmission and reception unit 310 receives the certificate request signal of the mobile communication terminal through the wired / wireless communication network, it transmits it to the authentication processing unit 320 and transmits the authentication result of the authentication processing unit 320 to the mobile communication terminal through the wired / wireless communication network. . In addition, the signal transmitting and receiving unit 310 transmits the payment information or billing information received from the payment unit 340 to the server of the financial institution or the server of the mobile communication company through the wired communication network, and receives the processing result.

When the certificate request signal is received from the signal transmission / reception unit 310, the authentication processing unit 320 is previously issued to the digital content requested in the transaction to the transaction history management unit 330 using the sender-side mobile communication terminal number that requested the certificate. Inquire whether there is a certificate and if a certificate exists, the existing certificate is issued as it is. That is, when the terminal user purchases the same digital content more than once, the digital content from the second time is provided free of charge.

However, if the certificate does not exist for the digital content, the authentication processor 320 requests the payment unit 340 for payment processing for the digital content using transaction information included in the certificate request signal. Thereafter, the authentication processing unit 320 issues a certificate including an authentication decryption command for granting access to digital content when the payment processing completion signal is received from the payment unit 340.

The transaction history management unit 330 stores and manages digital content buyer information, digital content transaction details, and certificates as a database. When the content authentication server 300 is provided by the mobile communication provider, the personal information of the digital content purchaser may use the personal information database of the subscriber of the mobile communication service as it is. However, when the content authentication server 300 is not provided by the mobile communication provider, the content authentication server 300 accesses a mobile communication service provider server (not shown) through a wired communication network for each digital content transaction, and requests for purchase of digital content. The personal information of the purchase requester corresponding to the mobile communication terminal number may be configured to be received.

When the payment unit 340 receives the digital content payment processing request signal from the authentication processing unit 320, the payment unit 340 interworks with the electronic payment module of the mobile communication terminal to perform payment processing for digital content purchase. In particular, the content authentication server 300 may be linked with the billing server of the mobile communication company or billing agency to charge the purchase price for the content together with the mobile communication fee. When the payment processing for the digital content is completed, the payment unit 340 transmits a payment completion signal to the authentication processing unit 320, and transmits the transaction history to the transaction history management unit 330.

3 is a flowchart illustrating a broadcast signal transmission process according to an embodiment of the present invention.

Referring to FIG. 3, the broadcast control unit in the DMB broadcasting system extracts advertisement program data from an advertisement program database according to a broadcast schedule (S300), and determines whether there is digital content to be included in the advertisement (S301).

If it is determined that there is digital content, the digital content is extracted from the content database (S302), and the commercial program data and the digital content data are transmitted to the broadcasting transmitter. The DMB broadcasting transmitter includes the digital content data in the advertisement program data, modulates and demodulates it to generate a broadcast signal (S303), and transmits the digital content data to the multiplexer. The multiplexer multiplexes the broadcast signal and transmits it to a DMB satellite or terrestrial DMB antenna (S304).

In contrast, when it is determined that there is no content to be transmitted together with the broadcast program, only the broadcast program is multiplexed through the DMB broadcast transmitter 140 and the multiplexer 150 to be transmitted to the DMB satellite or the terrestrial DMB antenna (S350). .

4 is a flowchart illustrating a digital content purchase process in a mobile communication terminal according to the present invention.

When the mobile communication terminal receives a broadcast signal including digital content from a DMB satellite or terrestrial DMB antenna (S400), the mobile terminal separates the broadcast signal into commercial data and digital content data according to the data type (S401), and the separated data is stored. It is determined whether the data is commercial data or digital content data (S402).

When the separated data is commercial data, the broadcast reproducing unit converts the commercial data into a form reproducible on the mobile communication terminal (S405) and outputs a broadcast to the mobile communication terminal (S406).

If the separated data is digital content data, the digital content manager determines whether reception of the digital content is completed (S403). If it is determined that the reception of the digital content is completed, the digital content data is stored in the temporary storage area of the memory unit (S404), and the digital content information is displayed on the display screen of the mobile communication terminal when the commercial containing the digital content data is played. And a menu for purchasing and / or trial using content (S407). However, if the reception of the content is not completed, the digital content data is not stored. E-commerce related menus such as digital content information and purchase / test usage are displayed on the display screen for a predetermined time in the form of a pop-up window.

When the terminal user selects a purchase based on the displayed menu (S408) and inputting a payment method of the ordered digital content is completed (S409), the mobile communication terminal generates a digital content certificate request signal and sends a certificate request signal to the content authentication server. Transmit (S410).

After receiving the certificate from the content authentication server (S411), through the purchase authentication of the digital content on the basis of the certificate to release the password given to the digital content (S412).

When the password assigned to the digital content is released, the digital content is converted into a usable state by the user's selection and stored in the permanent storage area of the memory unit. If the terminal user inputs a digital content reproduction command (S415), the digital content is executed on the mobile communication terminal (S416).

On the other hand, if the terminal user selects a "test" menu based on the displayed menu, the terminal waits for reception of the DMB broadcast (S413), and extracts a certificate included in the digital content data (S414). Thereafter, the content authentication process and the password are released (S412), and if a PLAY command is input from the user (S415), the selected digital content is executed on the mobile communication terminal (S416).

FIG. 5 is a flowchart illustrating a process of verifying purchase of content by a content authenticator. Referring to FIG. 5, the content authentication server receives a certificate request signal from a mobile communication terminal through a wired / wireless communication network (S500).

The content authentication server queries the purchase history (S501) and determines whether a certificate for the requested digital content already exists (S502). If a license already exists for the purchase requester, a certificate is immediately generated (S506) and transmitted to the mobile communication terminal through the wired / wireless communication network (S507).

However, if the certificate does not exist, payment is performed using the payment information included in the certificate request signal (S503), and the digital content purchase authentication is requested (S504).

Thereafter, it is determined whether authentication is normally performed (S505). If authentication is normal, a certificate is generated (S506) and transmitted to the mobile communication terminal through a wired / wireless communication network (S507). However, if the authentication is not normally performed, the digital content purchase authentication is requested again.

On the other hand, these examples are only for illustrating the present invention, the protection scope of the present invention is not limited by these examples.

While the invention has been shown and described in connection with specific embodiments thereof, it is well known in the art that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the claims. Anyone who owns it can easily find out.

As described above, according to the present invention, by receiving the content together via the DMB broadcast stream, the number of content users can be increased by enabling the use of the content without providing a separate information service fee or a call charge to download the content, Increase the size of the relevant market.

In addition, the user has the convenience of using the content through the mobile communication terminal without limitation of time and place, the content seller can be used as a means to not only advertise the content through DMB commercials but also sell the content at a low cost.

In addition, based on the content sales records recorded in the authentication server, the mobile communication fee and the content usage fee are charged together to make the user's payment of the content usage more convenient, and the service providers providing the authentication server are responsible for content charging. And, by sharing the information fee with the content sales server can create additional benefits.

Other effects of the present invention, as well as those described in the above-described embodiments and claims of the present invention, as well as the effects that can occur within a range that can be easily estimated from them and the potential of the potential advantages that contribute to industrial development Add that they will be covered by a wider scope.

Claims (13)

In the digital content electronic commerce system using digital multimedia broadcasting, A DMB broadcasting system which processes and transmits digital content including content information and content data into a broadcast signal; The broadcast signal received from the DMB broadcasting system is classified into the commercial program and the digital content, and when the reception of the digital content is completed, the digital content is stored for a predetermined time, the content information and the digital content included in the digital content. A mobile communication terminal displaying an electronic commerce menu on a display screen and generating a certificate request signal including transaction information when a purchase command of digital content is input and transmitting the same through a wired or wireless communication network; And When the certificate request signal is received from the mobile communication terminal, payment processing for the authentication requested content is performed on the basis of transaction information. If the purchase authentication of the digital content is normally performed, a certificate for the paid content is generated and the wired / wireless communication network is generated. Digital content electronic commerce system using a digital multimedia broadcasting comprising a content authentication server for transmitting to the mobile communication terminal through. The method of claim 1, The transaction information comprises a mobile communication terminal number, identification information and payment method of the digital content, digital content electronic commerce system using a digital multimedia broadcasting. The method of claim 1, The mobile communication terminal deletes the digital content if the purchase of the digital content is not made within a certain period, digital content electronic commerce system using digital multimedia broadcasting. The method of claim 1, The content authentication server is connected to a mobile communication company server or a financial institution server through a wired network billing the payment amount for digital content purchase, digital content electronic commerce system using digital multimedia broadcasting. The method of claim 1, The DMB broadcasting system is: An advertisement program database for storing and managing an advertisement program of digital content; A content database for storing and managing digital content including content data encrypted by DRM and content information representing information about the content data; A broadcast controller configured to receive an advertisement program from the advertisement program database according to a broadcast schedule, and extract digital content to be transmitted together with the advertisement from the content database; A DMB broadcasting transmitter configured to process a commercial program and digital content from the broadcast controller to generate and transmit a broadcast signal; And And a multiplexer which multiplexes a broadcast signal received from the DMB broadcast transmitter and transmits the broadcast signal to a transmission facility. The method of claim 1, The content authentication server, A signal transmission and reception unit for receiving a certificate request signal from the mobile communication terminal through a wired / wireless communication network and transmitting an authentication result to the mobile communication terminal; An authentication processor for receiving a certificate request signal from the signal transmission / reception unit and requesting payment processing according to a purchase history inquiry result of the requested digital content, generating a certificate for the digital content for payment and transmitting the certificate to the signal transmission / reception unit; A transaction history management unit which, when receiving the certificate inquiry request signal from the authentication processing unit, searches a database storing a transaction history of a content requester and a previously issued certificate and transmits an inquiry result to the authentication processing unit; Receiving a payment processing request from the authentication processing unit performs a payment processing based on the payment information received from the mobile terminal, and includes a payment unit for transmitting a payment processing result to the authentication processing unit, digital content electronic using digital multimedia broadcasting Commerce system. The method of claim 6, The content authentication server may further include a billing processing unit connected to a server of a mobile communication company or a server of a financial institution through a wired / wireless communication network to perform billing of a payment amount based on a settlement processing result received from the settlement unit. Digital contents e-commerce system using digital multimedia broadcasting. A mobile communication terminal capable of receiving digital multimedia broadcasting (DMB), A tuner for receiving a broadcast signal selected in synchronization with a predetermined frequency among the digital multimedia broadcast signals; A broadcast signal processor that separates the broadcast signal received from the tuner into digital content including an advertisement program and content information and content data; A digital content manager configured to receive digital content from the broadcast signal processor, determine whether reception of the received digital content is completed, and temporarily store and manage digital content that is determined to have been received; A broadcast reproducing unit for decoding and playing the commercial program received from the broadcast signal processing unit; A digital content display control unit which controls the digital content manager to display content information included in the digital content and an electronic commerce menu of the digital content on a display screen;  A content authentication unit for generating a certificate request signal for digital content when receiving a purchase request command and payment information from a user, and releasing encryption of the temporarily stored digital content and storing it for a long time when receiving a certificate; And And a wired / wireless communication module for transmitting a certificate request signal received from the content authentication unit to a content authentication server through a wired / wireless communication network and transmitting a certificate received from a content authentication server to the content authentication unit. The method of claim 8, The certificate request signal is characterized in that it comprises a transaction information, such as digital content ID, order information and payment method of the digital content, mobile communication terminal. The method of claim 8, And the digital content manager deletes content data that has not been transacted after a predetermined period of time has elapsed. In the electronic commerce method of digital content using digital multimedia broadcasting, A broadcast signal transmitting step of processing digital content into a broadcast signal together with a commercial program of digital content in a DMB broadcasting system and transmitting the same through a digital multimedia broadcasting facility; The tuner of the mobile communication terminal receives the broadcast signal, and the broadcast signal processing unit of the mobile communication terminal separates the commercial program into digital content including content information and content data, and the advertisement is broadcasted by the broadcast playback unit of the mobile communication terminal. A broadcast signal processing step of decoding and reproducing a broadcast program; A reception completion determination step of determining whether or not reception of the entire digital content separated from the broadcast signal processing unit is completed; A digital content storage step of storing the digital content for a predetermined period of time in the memory unit of the mobile communication terminal when it is determined that reception of the determination result is completed; A display step of displaying, by the broadcast reproducing unit, content information included in digital content and an electronic commerce menu of digital content on a display screen of the mobile communication terminal; A content requesting unit of the mobile communication terminal, when a user selects a content purchase menu and inputs payment information, a certificate requesting step of generating a certificate request signal for the corresponding digital content and transmitting it to a content authentication server through a wired / wireless communication network; When the signal transceiving unit of the content authentication server receives a certificate request signal, the authentication processing unit of the content authentication server performs payment processing for the corresponding digital content purchase, generates a certificate for the digital content for which payment processing is completed, and then performs the wired / wireless communication network. An authentication step of transmitting to a mobile communication terminal; And And decrypting the digital content based on the certificate received by the mobile communication terminal. The method of claim 11, The authentication step, When the signal transceiving unit of the content authentication server receives a certificate request signal, the authentication processing unit queries the transaction history of the content requester to the transaction history management unit of the content authentication server to determine whether a certificate exists for the requested content. Certificate presence determination step; If it is determined that the certificate does not exist, the payment step of performing a payment for the digital content purchase in the payment unit of the content authentication server using the payment information included in the certificate request signal; The authentication processing unit determines whether the payment is made normally, and if it is determined that the payment is made normally, a certificate issuing step of issuing a certificate; And And a certificate transmitting step of transmitting the issued certificate to the mobile communication terminal. The method of claim 12, The transmitting of the certificate further includes determining whether the mobile communication terminal has received a certificate in the content authentication server, and canceling payment of digital content and issuing a certificate when the certificate is not received. E-commerce method of digital content using broadcasting.

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