KR20110005502A - Contents payment service system, and method the same - Google Patents

Abstract

PURPOSE: A contents payment service system, and a method for the same are provided to conveniently perform the payment for the contents that a purchaser experiences free of charge by using electronic cash retained in a terminal device. CONSTITUTION: An electronic cash server(200) provides an electronic cash payment server. If the contents for which payment is not performed is determined to be reproduced, a terminal device(100) reproduces the contents in a preset free reproducible criteria of the contents. Based on the charging policy included in the contents, the terminal device displays an electronic cash payment menu which guides the payments for the contents by using the maintained electronic cash. If payment is selected from the electronic cash payment menus, the terminal device requests the electronic cash payment from the electronic cash server.

Description

Content payment service system and content payment service method {CONTENTS PAYMENT SERVICE SYSTEM, AND METHOD THE SAME}

The present invention relates to a content payment service system and a content payment service method, and more particularly, to handle post-payment for a corresponding content using electronic money when a content protected by copyright is used free of charge in advance without payment. The present invention relates to a content payment service system and a content payment service method capable of achieving efficiency of distribution, payment, and copyright protection of a content, and a terminal device and a method of using the content of the terminal device.

Electronic money is a virtual currency that has a constant currency value that is paid by the issuer and is provided by the issuer. It is relatively low risk of counterfeiting or tampering, safe in case of theft or loss, and convenient for making small payments. .

Accordingly, when a terminal device equipped with an electronic money function requests a corresponding electronic money transaction for an electronic money service to be used, such as electronic money payment, remittance, or charging, the electronic money server provides the corresponding electronic money service according to the transaction request. It is provided to the terminal device.

Meanwhile, contents such as movies and music are distributed in a digital form, and in order to protect copyrights, content providers encrypt and distribute contents by applying DRM (Digital Rights Management) technology. That is, in general, DRM technology provides a terminal device with an encrypted content (DRM Contents Format) and a right to use (Rights Object) to use the content, and the terminal device is used based on the right to use (RO). If the right is confirmed, the content can be decrypted and reproduced using a Contents Encryption Key (CEK) included in the right of use (RO).

However, the distribution of content using the DRM technology is inconvenient and restrictive to the user in using the content. In other words, in order to use the DRM technology applied content, the user can decode and play the content only after the user pays the purchase price for the content in advance, so that the purchased content does not meet expectations and requests a refund. There is a problem that can not be refunded. Therefore, the user is often hesitant to purchase the DRM technology-applied content or give up the purchase due to such a problem.

Therefore, there will be a need for a content payment service that can achieve the efficiency of distribution, payment, and copyright protection of content using DRM technology.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a preset free playback of the content when the terminal device selects playback of predetermined content whose payment has not been processed. Display the electronic money payment menu to play the content within a possible criterion, and to induce payment for the content by using the electronic money held therein based on the charging policy included in the content, and display the electronic money payment menu. When payment is selected through the terminal device, the electronic money server requests electronic money payment, and the electronic money server processes the requested electronic money payment by interworking with the corresponding content providing server corresponding to the content requested for payment. Service system and content payment service method to provide copyrighted content By the use of a free preview, without the use of electronic money when you meet so that you can process your payment after for its content, and to achieve both the efficiency of the distribution of content, payments, copyright protection.

The present invention was created in view of the above circumstances, and another object to be achieved in the present invention is that, when a play is selected for a predetermined content for which payment has not been processed, the play is performed within the preset free playable criterion of the selected content. If the payment is selected through the electronic money payment menu by displaying the electronic money payment menu to play the content, and induce payment for the content using electronic money based on the charging policy included in the content, Provides a terminal device requesting payment of electronic money to an external electronic money server through the money function and the contents usage method of the terminal device, and uses electronic money when the content protected by copyright is freely used in advance without payment. Distribution, payment, and It is to achieve all of the rights protected efficiency.

Contents purchase service system according to a first aspect of the present invention for achieving the above object is an electronic money server for providing an electronic money payment service; And playing the predetermined content that has not been settled, plays the content within a preset free playable criterion of the content, and uses the electronic money held therein based on a charging policy included in the content. And displaying an electronic money payment menu for inducing payment for the content, and if the payment is selected through the electronic money payment menu, requesting electronic money payment to the electronic money server.

Preferably, the terminal further comprises at least one content providing server for providing the corresponding content requested in response to a request from the terminal device, wherein the electronic money server is based on the electronic money payment request from the terminal device. The requested electronic money payment may be processed in association with the corresponding content providing server corresponding to the requested content.

Terminal device according to a second aspect of the present invention for achieving the above object comprises an electronic money control unit for providing an electronic money function corresponding to the held electronic money; A content storage unit for storing content; And when the playback of the predetermined content of the contents stored in the content storage unit is not processed, the content is played within the preset free playable criterion of the selected content, and the charging policy included in the content is displayed. Based on the electronic money held in the electronic money control unit, an electronic money payment menu for inducing payment for the contents is displayed. When payment is selected through the electronic money payment menu, the electronic money control unit requests electronic money payment. It includes a content control unit.

Preferably, the content may include a DRM media content to which DRM (Digital Rights Management) is applied, the free playable criterion corresponding to the DRM media content, and a DRM encryption key (CEK: Contents Encryption Key). RO: Rights Object), the billing policy set to induce payment using electronic money, and payment related information for processing payment using electronic money.

Preferably, the content controller includes the free playable criterion including at least one of free play count information, free play period information, and free play period information of the DRM media content of the selected content. Based on the usage right RO, when the playback condition at the time when the playback is selected belongs to the free playable criterion, the DRM media content may be decoded and reproduced based on the DRM encryption key of the usage right RO.

Preferably, the content controller, based on the billing policy including at least one of electronic payment menu information and payment menu notification time information included in the content selected for playback, at the preset payment menu notification time point When reaching, the free playback end message indicating the end of free playback based on the electronic money payment menu information, purchase price information for each purchase and playback condition corresponding to the DRM media content, payment request item for each purchase amount, and electronic money The electronic money settlement menu including at least one of balance information of the electronic money may be displayed through interworking with a charging item and the electronic money control unit.

Preferably, when the electronic money payment is requested from the content control unit as the payment is selected in the electronic money settlement menu, the electronic money controller sends an external electronic money server to an external electronic money server based on the payment related information included in the content. The electronic money payment corresponding to the content is requested, and when the electronic money payment is completed by the electronic money server, the completion of payment may be notified to the content controller.

Preferably, when the payment completion is received in response to the content, the content controller matches at least one of a usage right (RO) and a charging policy included in the corresponding content to satisfy the purchase / play condition corresponding to the payment completion. Can be updated to

Preferably, when the payment completion is received in response to the content, the content control unit recognizes a purchase reproduction condition according to the purchase amount of the corresponding payment request item selected for payment in response to the payment completion, and included in the content. The user interface (RO) corresponding to the DRM media content and the billing policy may be interfaced with an external corresponding content providing server so that the billing policy (RO) and the billing policy corresponding to the purchase reproduction condition are updated. .

According to a third aspect of the present invention, there is provided a content purchase service method. In the terminal device, when a play of predetermined content on which a payment has not been processed is selected, the terminal device can play a preset free play of the content. Playing the content within a criterion; Displaying, by the terminal device, an electronic money payment menu for inducing payment for the content using an electronic money held therein based on a charging policy included in the content; If the payment is selected through the electronic money settlement menu, requesting the electronic money payment from the terminal device to the electronic money server; And processing, by the electronic money server, the electronic money payment in association with the corresponding content providing server corresponding to the content requested for payment, based on the electronic money payment request from the terminal device.

Preferably, when the predetermined content from the terminal device is requested, the content providing server may further include providing the terminal device with the corresponding content whose payment has not been processed according to the request.

According to a fourth aspect of the present invention, there is provided a method of using a content of a terminal device. When a play of predetermined content for which payment has not been processed is selected, the content is used within a preset free playable criterion of the selected content. Playing content; Displaying an electronic money payment menu for inducing payment for the content using electronic money based on a charging policy included in the content; And if the payment is selected through the electronic money settlement menu, requesting an external electronic money server for electronic money payment through a pre-loaded electronic money function.

Preferably, the content may include a DRM media content to which DRM (Digital Rights Management) is applied, the free playable criterion corresponding to the DRM media content, and a DRM encryption key (CEK: Contents Encryption Key). RO: Rights Object), and the predetermined billing policy to induce payment using electronic money, and payment-related information for processing payment using electronic money.

Preferably, the playing of the content comprises: at least one of free play count information, free play period information, and free play period information of the DRM media content of the selected content. On the basis of the usage rights (RO) including the above, when the playback condition at the time when the playback is selected belongs to the free playable criterion, the DRM media content may be decoded and played based on the DRM encryption key of the usage rights (RO). .

Preferably, the displaying of the electronic money settlement menu is based on the charging policy including at least one of electronic money settlement menu information and payment menu notification point information included in the selected content. Determining whether the payment menu notification time is reached; and when the payment menu notification time is reached, a free playback end message indicating that the free playback is terminated based on the electronic money payment menu information, and the DRM media content. The electronic money including at least one of the purchase price information for each purchase and reproduction condition, the payment request item for each purchase amount, the electronic money charging item, and the balance information of the electronic money through interworking with the electronic money function. It may include displaying a payment menu.

Preferably, the step of requesting the electronic money payment to an external electronic money server, based on the payment related information included in the content by the electronic money function as the payment is selected from the electronic money payment menu. Request an electronic money payment corresponding to the content to an external electronic money server, and receive the payment completion provided as the electronic money payment by the electronic money server is completed.

Preferably, when the payment is received corresponding to the content, updating the at least one of the usage rights (RO) and the billing policy included in the content to meet the purchase and playback conditions corresponding to the payment completion; It may further include.

Preferably, in the updating step, when the payment completion is received in response to the content, recognizing a purchase reproduction condition according to a purchase amount of a corresponding payment request item selected for payment in response to the payment completion, and corresponding content; Perform an interface with an external corresponding content providing server so that the usage rights (RO) and the charging policy corresponding to the DRM media content included in the DRM media content are updated with the usage rights (RO) and the charging policy corresponding to the purchase reproduction condition. It may include the step.

Accordingly, according to the content payment service system and the content payment service method of the present invention, the DRM media content of the content for a predetermined period of time or a predetermined number of times according to the free playable criterion set in the usage right R0 included in the unpaid content. By playing on the terminal device 100 to experience the content that has not been paid for free, and using the electronic money held in the terminal device to facilitate the payment for the content for free trial, copyright If the protected content is used free of charge in advance without satisfaction, it is possible to conveniently handle post-payment for the content, thereby achieving the efficiency of distribution, settlement, and copyright protection of the content.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 is a diagram showing a content payment service system according to a preferred embodiment of the present invention.

As shown in FIG. 1, the content payment service system according to the present invention includes an electronic money server 200 that provides an electronic money payment service, and playback of predetermined content for which payment has not been processed is selected. Displays the electronic money payment menu that plays the content within a preset free playable criterion of the content and induces payment for the content using an electronic money held therein based on a charging policy included in the content; When the payment is selected through the electronic money payment menu, the electronic money server 200 includes a terminal device 100 that requests electronic money payment. Here, the content payment service system according to the present invention may include at least one content providing server 300 for providing the corresponding content requested in response to a request from the terminal device 100.

The network 1 shown in FIG. 1 is a communication network supporting communication between the terminal device 100, the electronic money server 200, and the content providing server 300. The mobile phone network, the wired telephone network, and the IP-based wireless / wireless Internet It may include various communication networks such as networks, portable Internet networks (eg, WiBro networks).

The content providing server 300, through the linkage with the distributor to hold a variety of content or to produce and distribute the content, when the predetermined content is requested from the terminal device 100 via the network (1) Provided to the terminal device (100). In this case, the content providing server 300 preferably provides the corresponding content to the terminal device 100 even when the purchase price for the requested content is not paid.

The content provided by the content providing server 300 corresponds to the content 150 to be described later in FIG. 2 or FIG. 3.

The electronic money server 200 may provide various electronic money services, including an electronic money payment service. That is, when an electronic money service to be used such as electronic money payment, electronic money transfer, or electronic money charging is requested from a predetermined terminal equipped with an electronic money function (for example, the terminal device 100), the electronic money server 200 ) May provide the requested electronic money service to the terminal device 100.

For example, when the electronic money server 200 requests electronic money payment for a predetermined purchase amount (eg, the purchase amount of the content 150 of FIG. 2) from the terminal device 100, the electronic money server 200 based on the electronic money payment request. By interworking with the corresponding content providing server 300 corresponding to the content 150 to be requested for payment, the electronic money payment is processed. In other words, the electronic money server 200 provides the electronic money deduction signal corresponding to the purchase price to the terminal device 100 based on the electronic money payment request from the terminal device 100 and corresponds to the actual purchase price. The electronic money payment can be processed by remitting the amount to the corresponding content providing server 300 side account corresponding to the content 150 that is requested to be paid. Of course, when the electronic money payment processing is completed, it is preferable that the electronic money server 200 notifies the terminal device 100 that the payment is completed.

When the playback of the predetermined content is not selected, the terminal device 100 plays the content within a preset free playable criterion of the content, and internally based on a charging policy included in the content. Display the electronic money payment menu to induce payment for the content using the electronic money held in, and if the payment is selected through the electronic money payment menu request the electronic money server 200 for electronic money payment.

The terminal device 100 may be a terminal having any configuration as long as it is a terminal capable of playing content, and may be, for example, a device such as a mobile communication terminal, a computer terminal, or a TV terminal.

Hereinafter, the configuration of the terminal device 100 according to the present invention will be described in more detail with reference to FIG. 2.

As shown in FIG. 2, the terminal device 100 according to an exemplary embodiment of the present invention includes an electronic money control unit 110 that provides an electronic money function corresponding to the electronic money, and a content storage in which contents are stored. When the playback of the predetermined content 150 in which the payment is not processed among the contents stored in the content storage unit 120 and the content storage unit 120 is selected, the content (the content within the preset free playable criterion of the selected content 150 is selected). 150 to display an electronic money payment menu that induces payment for the content 150 using the electronic money held in the electronic money control unit 110 based on the charging policy included in the content 150. When the payment is selected through the money settlement menu, the electronic money controller 110 includes a content controller 130 for requesting electronic money payment.

The content storage unit 120 is a storage unit that stores the contents held in the terminal device 100, and may store the unpaid content 150 in which the purchase price is not paid.

Here, the content of the unpaid content 150 is stored in the content storage unit 120, the content control unit 130 or the download unit (not shown) of the terminal device 100 is connected to the network (1) Access to the content providing server 300 through the user can be stored by requesting and receiving the corresponding content requested by the user (eg, content 150), or is stored in another device (eg PC) or terminal external memory It may be stored by copying or reading the content.

The content storage unit 120 may be a memory card such as an SD memory card or a Secure MMC memory card having a security function. That is, the content storage unit 120 is equipped with an application (which can be referred to as a card OS) having a security function, and communicates with a host (for example, the terminal device 100) on which the content storage unit 120 is mounted. You can also add / delete / modify / lead data, such as storing data or providing the stored data to a host.

Here, the unpaid content 150 stored in the content storage unit 120 is provided directly from the content providing server 300, or the content from the content providing server 300 to the other device (eg PC) or external terminal As content stored through the memory, the configuration of the content will be described with reference to FIG. 3. For reference, for convenience of description, the description will be made by referring to the content 150 stored in the unpaid state in the terminal device 100.

As shown in FIG. 3, the content 150 handled in the present invention includes a DRM media content 152 to which DRM (Digital Rights Management) is applied, a free playable criterion corresponding to the DRM media content 152, and a DRM password. To process the rights object (RO) including the key (Contents Encryption Key) (CEK), the predetermined billing policy (156) to induce payment using electronic money, and payment using electronic money Payment related information for 158 may be included.

The DRM media content 152 is media that will be shown to the user through actual playback of data included in the content 150 and may be referred to as content encrypted by the DRM technology. That is, the media in the content 150 provided and stored by the terminal device 100 is the DRM media content 152 encrypted by the DRM technology. The DRM media content 152 may be various types of media such as a movie or music (MP3) or a game.

Here, the DRM technology refers to a technology for encrypting content with an encryption key (hereinafter referred to as DRM encryption key) in order to securely protect and manage copyrights in content distribution. do.

The usage right (RO) 154 includes a preset configuration including at least one of a free playable criterion corresponding to the DRM media content 152 and a DRM encryption key and meta information (eg, binding information, attribute information, etc.). to be.

Here, the free playable criterion is a preset criterion so that the content 150 can be experienced for free in the terminal device 100 in which the content 150 is stored as the content 150 is not yet paid. . Accordingly, the free playable criterion includes free play count information (eg, three times) and free play period information (eg, 7 days or 1 January) based on the time when the content 150 is first selected by the terminal device 100. Days, etc.) and free playing section information (up to three minutes of playing time, still cut section, etc.).

The charging policy 156 is a policy that is set in advance to induce post payment for the corresponding content 150, and is preferably a policy that is set in advance to induce payment using electronic money for the corresponding content 150. .

For example, the charging policy 156, the electronic money payment menu information to be displayed to induce payment using the electronic money for the corresponding content 150, and the payment menu notification time information (not shown) to display the electronic money payment menu ( For example, at least one time before the free playable criterion, 1 day before, or when a specific date is reached, or every play, etc. may be included.

The payment related information 158 is preset information for processing payment, and is preferably information that is preset for processing payment using electronic money for the content 150.

For example, the payment related information 158 includes payment means information (e.g., electronic money payment) for the corresponding content 150, and each purchase reproduction condition (e.g., 1 month use, 10 times use, unlimited use, etc.). And at least one of purchase price information for each purchase reproduction condition and server connection information corresponding to a payment method.

The electronic money control unit 110 is a functional unit that enables the electronic device to use the electronic money function. The electronic money controller 110 holds electronic money and provides an electronic money function corresponding to the electronic money. For example, when the terminal device 100 is a mobile communication terminal, the electronic money control unit 110 may correspond to an electronic money card mounted on the terminal device 100, and the electronic money card is a smart card in the form of a SIM ( It may be a user identification card such as a Subscriber Identification Module (Card) card or a Universal Subscriber Identification Module (USIM).

The electronic money controller 110 may provide the content controller 130 with balance information of electronic money held by the content controller 130 in response to a request for balance information from the content controller 130.

In addition, when the electronic money control unit 110 requests payment of the electronic money according to a predetermined purchase amount corresponding to the predetermined content (eg, the content 150) from the content control unit 130, the electronic money controller 110 transmits a request to the corresponding content 150. The electronic money server 200 requests an electronic money payment corresponding to the content 150 based on the payment related information. Here, the electronic money payment request provided by the electronic money control unit 110 to the electronic money server 200 based on the payment related information included in the content 150 includes the terminal identification information of the terminal device 100 and the corresponding content ( At least one of the content identification information of 150, the purchase price information, and the server access information of the corresponding content providing server 300 that provided the content 150 may be included.

When the electronic money control unit 110 receives a payment completion from the electronic money server 200 in response to the electronic money server 200 requesting the electronic money payment corresponding to the content 150, the electronic money payment is performed. Recognizing that the completion of the payment is preferably notified to the content control unit 130.

If the content control unit 130 is selected to play the predetermined content 150 in which the payment is not processed among the contents stored in the content storage unit 120, the content control unit 130 is in the usage rights (RO) 154 of the selected content 150. When it is determined that the free playable standard is within the free playable standard, the content 150 is played.

In other words, the content control unit 130 is assigned to the usage rights (RO) 154 including a free playable criterion (eg, 7 days) for the DRM media content 152 of the unpaid content 150 for which playback is selected. On the basis of this, it is determined whether the playback condition at the time when the playback is selected belongs to the free playable criterion (for example, 7 days), and if it belongs to the free playable criterion (for example, 7 days), the usage right (RO) 154. The DRM media content 152 is decoded and reproduced based on the DRM encryption key.

Here, the playback condition of the playback selected time point is a condition that is determined based on the first playback selected time point for the content 150.

Thus, assuming that the free playable criterion is set to "7 days", when the current play selection is the first time, the content controller 130 may store the current time point and count the date, and the elapsed date information counted to the play condition Corresponding. Therefore, when playback of the content 150 is selected next, the content controller 130 determines that the playback condition (eg, 4 days after the initial playback) within the free playable criterion (7 days) at the time when playback is selected is selected. The DRM media content 152 can be decoded and reproduced based on the DRM encryption key of the usage right (RO) 154. Of course, the content controller 130 may not play the DRM media content 152 if it is determined that the playback condition at the time when the next playback is selected, that is, the elapsed date after the first playback is not within the free playable criterion (7 days).

In addition, assuming that the free playable criterion is set to "three times", when the current play selection is the first time, the content control unit 130 counts the play times and the play count information counted corresponds to the play condition. Therefore, when the playback for the content 150 is selected next, the content controller 130 determines that the playback condition (eg, once) at the time when the playback is selected is within the free playable criterion (3 times) and uses the permission ( The DRM media content 152 can be decoded and reproduced based on the DRM encryption key of the RO) 154. Of course, the content controller 130 may not play the DRM media content 152 if it is determined that the playback condition at the time when the next playback is selected, that is, the number of playbacks after the first playback is not within the free playable criterion (three times).

Here, the method for the content control unit 130 to decrypt the DRM media content 152 based on the DRM encryption key of the use authority (RO) 154 is a technique that is used according to the existing DRM technology, and thus a detailed description thereof will be omitted. .

Therefore, according to the present invention, if the playback of the unpaid content 150 is selected in the terminal device 100, a schedule is set according to the free playable criterion set in the usage right (R0) 154 included in the content 150. Since the DRM media content 152 of the content 150 can be played on the terminal device 100 for a period or a predetermined number of times, the user can experience the content 150 without paying for free.

Meanwhile, the content controller 130 uses the electronic money held in the electronic money controller 110 to induce payment for the content 150 based on the charging policy 156 included in the content 150. Display the menu. That is, the content controller 130 determines whether the payment menu notification time is reached based on the charging policy 156 of the corresponding content 150 after the content 150 is first played by the terminal device 100. When the payment menu notification time is reached, the electronic money settlement menu is displayed to induce payment for the content 150 using the electronic money held in the electronic money control unit 110.

Here, it is assumed that the free playable criterion set in the usage right (RO) 154 is "three times" and the payment menu notification point information set in the billing policy 156 is "one time before the free playable criterion". Then, the content controller 130 may determine that the payment menu notification time is reached when the number of playbacks counted in correspondence to the corresponding content 150 reaches two times. In addition, assuming that the free playable criterion set in the usage right (RO) 154 is "7 days" and the payment menu notification point information set in the billing policy 156 is "1 day before the free playable criterion". When the elapsed date counted in correspondence with the corresponding content 150 reaches 6 days, the content control unit 130 may determine that the payment menu notification time is reached. In addition, assuming that the free playable criterion set in the usage right (RO) 154 is "7 days" and the payment menu notification point information set in the billing policy 156 is "at every playback", the content controller 130 In response to the corresponding content 150, when the playback is selected and is determined to be within the free playable criterion, it may be determined that the playing event itself reaches the payment menu notification point.

 Accordingly, the content controller 130 displays an electronic money settlement menu for inducing payment for the content 150 using the electronic money held in the electronic money controller 110 when the payment menu notification point is reached. That is, the content control unit 130, when reaching the payment menu notification time and the free playback end message to notify the end of the free playback based on the electronic money payment menu information included in the charging policy 156 of the content 150, Purchase amount information for each purchase and playback condition corresponding to the DRM media content 152, payment request items for each purchase amount, electronic money charging item, and balance information of electronic money obtained through interworking with the electronic money control unit 110. The electronic money settlement menu including at least one of the above can be displayed.

For example, the content controller 130 obtains the electronic money balance information by providing a balance information request requesting the electronic money balance information to the electronic money controller 110 when the payment menu notification point is reached. And, the content control unit 130, the free playback end message (for example, "free trial ends") and the DRM media content to notify that the free playback is finished based on the electronic money payment menu information included in the charging policy 156, Purchase price information (e.g. 10,000 won, 20,000 won, 30,000 won, etc.) for each purchase reproduction condition (e.g. 1 month use, 10 use, unlimited use, etc.) corresponding to (152), and payment request for each purchase amount An electronic money payment menu including an item, an electronic money charging item for requesting charging of electronic money in the electronic money control unit 110, and electronic money balance information obtained from the electronic money control unit 110 (for example, 50,000 won). I can display it.

When the user selects a predetermined payment request item (e.g., item 2 (10 times-$ 20,000)) in the electronic money settlement menu displayed as above, the content controller 130 recognizes that a payment corresponding to the selected payment request item is selected. The electronic money controller 110 requests electronic money payment of the corresponding content 50 according to the purchase price (20,000 won) corresponding to the selected payment request item.

Accordingly, as described above, the electronic money controller 110 uses the electronic money payment corresponding to the content 150 based on the payment related information 158 included in the corresponding content 150 based on the electronic money payment request. If the request is made to the server 200 and the payment completion from the electronic money server 200 is received, the content control unit 130 will be notified that the payment is completed.

Of course, the charging policy 156 of the content 150 may be set to include payment menu information and payment menu notification point information for inducing payment using a credit card, and payment of the content 150 to correspond thereto. The related information 158 may be set as information for processing a payment using a credit card. In this case, the terminal device 100 is provided with a separate payment control unit (not shown) instead of the electronic money control unit 110, the content control unit 130 to induce payment using a credit card when reaching the payment menu notification time. The payment menu is displayed based on the payment menu information, and the content control unit 130 provides the payment request according to the credit card information and the payment request item input from the payment menu to the payment control unit (not shown). May request a payment corresponding to the content 150 from an external credit card payment server (not shown).

When the payment completion is received in response to the unpaid content 150, the content controller 130 selects at least one of a usage right (RO) 154 and a charging policy 156 included in the corresponding content 150. Update to meet the purchase reproduction conditions corresponding to the payment completion.

That is, when the payment completion is received from the electronic money control unit 110 in response to the content 150, the content control unit 130, the purchase playback conditions according to the purchase amount of the payment request item selected for payment in response to the payment completion ( Ex: 10 times). In addition, the content control unit 130, the usage rights (RO) 154 and the charging policy 156 corresponding to the DRM media content 152 included in the content 150, the purchase and playback conditions (for example, 10 times use) In order to be updated with a usage right (RO) and a billing policy corresponding to), an interface with an external corresponding content providing server 300 may be performed.

For example, the content controller 130 connects to the content providing server 300 and provides content identification information corresponding to the content 150, thereby reproducing the purchase and playback conditions (eg, in response to the content 150). A connection to a Right Issuer (RI) server (not shown) that can provide a usage rights (RO) 154 'and a charging policy 156' corresponding to ten uses) may be triggered. Accordingly, the content control unit 130 is connected to the RI server (not shown) through the content providing server 300 is a new response to the purchase playback conditions (eg, 10 times) corresponding to the content 150 to purchase Request a permission (RO) 154 'and a billing policy 156', and receive a new permission (RO) 154 'and billing policy 156' from an RI server (not shown). RO) 154 and charging policy 156 may be updated.

Accordingly, the usage right (RO) 154 and the billing policy 156 included in the unpaid state in the content 150 may be used according to the paid purchase regeneration condition (eg, 10 times). (154 ') and billing policy (e.g. electronic money payment menu information and payment menu notification point information (e.g. one time before purchase recyclable standard)) are changed. Will be updated to 156 '.

Therefore, after the usage right (RO) 154 and the charging policy 156 of the content 150 are newly updated, the content control unit 130 updates the updated usage right (RO) when the playback of the corresponding content 150 is selected. 154 ', the content 150 is played based on the purchase reproducibility criteria, and the electronic money settlement menu is displayed based on the updated charging policy 156'. This corresponds to the use of content after the terminal device 100 pays the legitimate purchase amount through electronic money, which corresponds to the method of playing the existing purchased DRM content.

On the other hand, the content controller 130 not only updates the usage rights (RO) 154 and the charging policy 156 of the content 150 by performing an interface with the content providing server 300, but also in the content 150. VM (Virtual Machine) is provided so that the VM directly interfaces with the content providing server 300 by using the communication function of the terminal device 100, the usage rights (RO) 154 and the charging policy of the content 150 It may be possible to update 156 itself.

Of course, the VM in the content 150, at least one of the above-described payment menu notification time determination function of the content control unit 130, the electronic money payment menu display function, the electronic money payment request function to the electronic money controller 110. It may be proactively performed through an interface with the terminal device 100.

As described above, the content purchase service system according to the present invention, the content for a predetermined period or a predetermined number of times according to the free playable criteria set in the usage rights (R0) 154 included in the unpaid content 150 Play the DRM media content 152 of 150 on the terminal device 100 to experience the unpaid content 150 for free, and use the electronic money held in the terminal device 100 for free trial. By encouraging users to conveniently pay for one content 150, if they are satisfied that the copyright-protected content 150 is used free of charge in advance without payment, the post-payment of the content 150 is conveniently handled. It is possible to achieve all the efficiency of the distribution, payment, copyright protection of the content 150.

Hereinafter, a control flow of a content purchase service method of a preferred embodiment according to the present invention will be described with reference to FIGS. 4 and 5. Here, for the convenience of description, the configuration shown in FIGS. 1 to 3 described above will be described with reference to the corresponding reference numerals.

First, referring to FIG. 4, the content purchase service method of the present invention will be described. First, the terminal device 100 stores unpaid content 150 (S30). Here, the unpaid content 150 is stored in the terminal device 100, and the terminal device 100 accesses the content providing server 300 through the network 1 to request desired content (S10). Accordingly, the content providing server 300 provides the corresponding content to the terminal device 100 without payment (S20), and thus, the unpaid content 150 may be stored in the terminal device 100. Of course, in addition to storing the unpaid content 150 in the terminal device 100, the terminal device 100 is stored by copying or reading content stored in another device (for example, a PC) or a terminal external memory. It could be.

Thus, when the playback of the predetermined content 150 for which payment has not been processed in the terminal device 100 is selected (S40), the terminal device 100 determines whether the content is within a preset free playable criterion of the content 150. If it is determined (S50), the content 150 is played when it is within the free playable standard (S55).

Meanwhile, the terminal device 100 determines whether the payment menu notification time is reached based on the charging policy 156 included in the content 150 (S60), and when the payment menu notification time is reached, the electronic device held therein is used. By displaying the electronic money payment menu to induce payment for the content 150 (S65).

Thus, when the payment is selected through the electronic money payment menu (S70), the terminal device 100 requests the electronic money payment to the electronic money server 200 (S80). Accordingly, based on the electronic money payment request from the terminal device 100, the electronic money server 200 is linked to the corresponding content providing server 300 corresponding to the content 150 that is requested to be paid (S85) Process the currency settlement (S90).

That is, when the electronic money server 200 requests payment of electronic money for a predetermined purchase amount (eg, the purchase amount of the content 150 of FIG. 2) from the terminal device 100, the electronic money server 200 receives the electronic money from the terminal device 100. The content providing server 300 corresponding to the content 150 for which the electronic money deduction signal corresponding to the purchase price is provided to the terminal device 100 and the actual amount corresponding to the purchase price is requested to be paid, based on the currency payment request. By sending money to the account, the electronic money settlement can be processed.

Then, the electronic money server 200 preferably informs the terminal device 100 that the payment is completed when the electronic money payment process is completed (S95).

When the payment is received in response to the unpaid content 150, the terminal device 100 receiving the payment completion performs an interface with the corresponding content providing server 300 (S100). At least one of the usage right (RO) 154 and the charging policy 156 included in the update is updated to meet the purchase regeneration condition corresponding to the payment completion (S105).

Hereinafter, a control flow of a method of using a content of the terminal device 100 according to the present invention will be described with reference to FIG. 5.

First, the terminal device 100 stores the unpaid content 150 (S110). Here, the unpaid content 150 is stored in the terminal device 100, and the terminal device 100 accesses the content providing server 300 through the network 1 to request desired content, and thus the content providing server. As the 300 provides the corresponding content to the terminal device 100 without payment, the unpaid content 150 may be stored in the terminal device 100. Of course, in addition to storing the unpaid content 150 in the terminal device 100, the terminal device 100 is stored by copying or reading content stored in another device (for example, a PC) or a terminal external memory. It could be.

Accordingly, the method of using the content of the terminal device 100 determines whether the playback of the predetermined unpaid content 150 for which payment has not been selected is selected (S120). It is determined whether it is within the preset free playable criteria (S130). Accordingly, if it is determined that the free playable criteria are included, the method of using the content of the terminal device 100 plays the content 150 (S140).

That is, the terminal device 100 is based on the usage right (RO) 154 including a free playable criterion (eg, 7 days) for the DRM media content 152 of the unpaid content 150 for which playback is selected. In this case, it is determined whether the playback condition at the time when the playback is selected belongs to the free playable criterion (for example, 7 days) (S130). The DRM media content 152 can be decoded and reproduced based on the DRM encryption key of 154 (S140).

Here, the playback condition of the playback selected time point is a condition that is determined based on the first playback selected time point for the content 150.

Thus, assuming that the free playable criterion is set to "7 days", when the current play selection is the first time, the terminal device 100 will start storing the current time point and counting the date. Corresponds to Therefore, if playback of the corresponding content 150 is selected next, the terminal device 100 determines that the playback condition (eg, 4 days after the first playback) at the time when the playback is selected is within the free playable criterion (7 days). The DRM media content 152 can be decoded and reproduced based on the DRM encryption key of the usage right (RO) 154. Of course, if it is determined that the playback condition at the time when the next playback is selected, that is, the elapsed date after the first playback is not within the free playable criterion (7 days), it is natural that the terminal device 100 cannot play the DRM media content 152.

In addition, assuming that the free playable criterion is set to "3 times", when the current play selection is the first time, the terminal device 100 starts counting the play times and the counted play count information corresponds to the play condition. Therefore, when the playback of the content 150 is selected next, the terminal device 100 determines that the playback condition (eg, once) at the time when the playback is selected is within the free playable criterion (3 times) and uses the permission ( The DRM media content 152 can be decoded and reproduced based on the DRM encryption key of the RO) 154. Of course, the terminal device 100 can not play the DRM media content 152 if it is determined that the playback condition at the time when the next playback is selected, that is, the number of playbacks after the first playback is not within the free playable criterion (3 times).

On the other hand, the method of using the content of the terminal device 100, the electronic to induce payment for the content 150 using the electronic money held by the electronic money function based on the charging policy 156 included in the content 150 Display the currency settlement menu.

That is, the method of using the content of the terminal device 100 reaches the point of time of the payment menu notification based on the charging policy 156 of the corresponding content 150 after the content 150 is first reproduced in the terminal device 100. It is determined whether or not (S150).

Here, it is assumed that the free playable criterion set in the usage right (RO) 154 is "three times" and the payment menu notification point information set in the billing policy 156 is "one time before the free playable criterion". The terminal device 100 may determine that the payment menu notification time is reached when the number of playing counts corresponding to the content 150 reaches two times. In addition, assuming that the free playable criterion set in the usage right (RO) 154 is "7 days" and the payment menu notification point information set in the billing policy 156 is "1 day before the free playable criterion". When the elapsed date counted in correspondence with the corresponding content 150 reaches 6 days, the terminal device 100 may determine that the payment menu notification time has been reached. In addition, assuming that the free playable criterion set in the usage right (RO) 154 is "7 days" and the payment menu notification point information set in the charging policy 156 is "at every playback", the terminal apparatus 100 In response to the corresponding content 150, when the playback is selected and is determined to be within the free playable criterion, it may be determined that the playing event itself reaches the payment menu notification point.

Thus, the method of using the content of the terminal device 100, when the determination in step S150 reaches the payment menu notification point, induces payment for the content 150 by using the electronic money held by the electronic money function preloaded. The electronic money settlement menu is displayed (S160).

That is, the content usage method of the terminal device 100 displays an electronic money payment menu that induces payment for the content 150 using the electronic money held by the electronic money function when the payment menu notification point is reached. . In other words, when the terminal 100 reaches the payment menu notification point, the terminal device 100 receives a free play end message indicating that the free play is terminated based on the electronic money settlement menu information included in the charging policy 156 of the corresponding content 150. And the purchase amount information for each purchase and playback condition corresponding to the DRM media content 152, the payment request item for each purchase amount, the electronic money charging item, and the balance information of the electronic money obtained through interworking with the electronic money function. The electronic money settlement menu including at least one of the above can be displayed.

For example, when reaching the payment menu notification point, the terminal device 100 obtains the electronic money balance information by providing a balance information request for the electronic money balance information to the electronic money control unit 110. And, the terminal device 100, the free playback end message (for example, "free trial ends") to inform the end of the free playback based on the electronic money payment menu information included in the charging policy 156, and DRM media content Purchase price information (e.g. 10,000 won, 20,000 won, 30,000 won, etc.) for each purchase reproduction condition (e.g. 1 month use, 10 use, unlimited use, etc.) corresponding to (152), and payment request for each purchase amount An electronic money payment menu including an item, an electronic money charging item for requesting charging of electronic money of an electronic money function, and electronic money balance information (for example, 50,000 won) may be displayed.

The method of using the content of the terminal device 100 determines whether a payment is selected according to a predetermined payment request item selected in the electronic money settlement menu displayed as described above (S170). Thus, when a predetermined payment request item (eg, item 2 (10 times-20,000 won)) is selected, the method of using the content of the terminal device 100 is selected by recognizing that payment corresponding to the selected payment request item is selected. The electronic money payment for the corresponding content 50 according to the purchase amount (20,000 won) corresponding to the payment request item is requested to the external electronic money server 200 through the electronic money function (S180).

Thus, the method of using the content of the terminal device 100, in response to the electronic money payment request for the unpaid content 150 determines whether the payment is received from the electronic money server 200 (S190), the payment is completed When received, at least one of the usage rights (RO) 154 and the charging policy 156 included in the corresponding content 150 is updated to meet the purchase reproduction condition corresponding to the payment completion (S200 to S210).

That is, in the method of using the content of the terminal device 100, when the payment completion is received in response to the content 150, the purchase reproduction condition according to the purchase amount of the corresponding payment request item selected for payment in response to the payment completion (eg, 10 Recognize) (S200). In addition, in the method of using the content of the terminal device 100, a usage right (RO) 154 and a charging policy 156 corresponding to the DRM media content 152 included in the corresponding content 150 may be purchased and reproduced (eg, : 10 times) can be interfaced with the external content providing server 300 to be updated with the use rights (RO) and the billing policy (S210).

For example, the terminal device 100 connects to the content providing server 300 and provides content identification information corresponding to the content 150, thereby reproducing the purchase reproducing condition corresponding to the content 150 (eg, 10). A connection to a Right Issuer (RI) server (not shown) may be triggered that may provide a rights of use (RO) 154 'and a charging policy 156'. Accordingly, the terminal device 100 corresponds to a purchase playback condition (eg, 10 times) corresponding to the corresponding content 150 to be purchased by connecting to an RI server (not shown) through the content providing server 300. Request a new RO (154 ') and billing policy (156') and receive a new RO (154 ') and billing policy (156') from an RI server (not shown). (RO) 154 and charging policy 156 may be updated.

Accordingly, the usage right (RO) 154 and the billing policy 156 included in the unpaid state in the content 150 may be used according to the paid purchase regeneration condition (eg, 10 times). (154 ') and billing policy (e.g. electronic money payment menu information and payment menu notification point information (e.g. one time before purchase recyclable standard)) are changed. Will be updated to 156 '.

Therefore, after the usage rights (RO) 154 and the charging policy 156 of the content 150 are newly updated, the method of using the content of the terminal device 100 is updated when the playback of the corresponding content 150 is selected. The content 150 will be played based on the purchase reproducibility criteria in the usage right (RO) 154 'and the electronic money payment menu will be displayed based on the updated charging policy 156'. This corresponds to the use of content after the terminal device 100 pays the legitimate purchase amount through electronic money, which corresponds to the method of playing the existing purchased DRM content.

On the other hand, the terminal device 100 not only updates the usage rights (RO) 154 and the charging policy 156 of the content 150 by performing an interface with the content providing server 300, but also in the content 150. VM (Virtual Machine) is provided so that the VM directly interfaces with the content providing server 300 by using the communication function of the terminal device 100, the usage rights (RO) 154 and the charging policy of the content 150 It may be possible to update 156 itself.

Of course, the VM in the content 150, at least any one of the electronic money payment request function through the above-mentioned payment menu notification time arrival determination function of the terminal device 100, the electronic money payment menu display function, electronic money function It may be performed proactively through the interface with the (100).

As described above, the content purchase service method according to the present invention, the content for a predetermined period or a predetermined number of times according to the free playable criteria set in the usage rights (R0) 154 included in the unpaid content 150 Play the DRM media content 152 of 150 on the terminal device 100 to experience the unpaid content 150 for free, and use the electronic money held in the terminal device 100 for free trial. By encouraging users to conveniently pay for one content 150, if they are satisfied that the copyright-protected content 150 is used free of charge in advance without payment, the post-payment of the content 150 is conveniently handled. It is possible to achieve all the efficiency of the distribution, payment, copyright protection of the content 150.

Meanwhile, the steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of both. The software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.

An exemplary storage medium is coupled with the processor, such that the processor can read information from and write information to the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may be included in an ASIC. The ASIC may be included in the user terminal. In the alternative, the processor and the storage medium may reside as discrete components in a user terminal.

Although the present invention has been described in detail with reference to preferred embodiments, the present invention is not limited to the above-described embodiments, and the technical field to which the present invention belongs without departing from the gist of the present invention as claimed in the following claims. Anyone skilled in the art will have the technical idea of the present invention to the extent that various modifications or changes are possible.

Based on the free playable criteria included in the unpaid content in the terminal device, the user can play the content for a certain period or a certain number of times for free to experience the unpaid content, and use the electronic money held in the terminal device. Content purchase service that allows users to conveniently pay for free trial contents, so that they can conveniently handle post-payment for the contents if they are satisfied by using the copyright-protected contents free of charge in advance without payment. The application of the system and the content purchase service method can lead to significant progress in terms of promoting the distribution and promotion of content distribution and copyright protection efficiency, and the possibility of the commercialization or sales of the applied content purchase service, content, and terminal devices. Not only is it enough, Since the invention also in the industrial applicability.

1 is a control block diagram of a content payment service system according to a preferred embodiment of the present invention.

2 is a control block diagram of a terminal device according to an embodiment of the present invention.

3 is a block diagram of content according to a preferred embodiment of the present invention.

4 is a flowchart illustrating a control flow of a content payment service method according to an exemplary embodiment of the present invention.

5 is a control flowchart illustrating a content using method of a terminal device according to an exemplary embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

1: network

100: terminal device

200: electronic money server

300: content providing server

Claims (19)

An electronic money server providing an electronic money payment service; And When the playback is selected for the predetermined content that has not been settled, the content is played within a preset free playable criterion of the content, and the electronic money held therein is based on a charging policy included in the content. Displaying an electronic money payment menu for inducing payment for the content, Contents payment service, characterized in that it comprises a terminal device for requesting electronic money payment to the electronic money server when payment is selected through the electronic money payment menu system. The method of claim 1, At least one content providing server for providing the corresponding content requested in response to a request from the terminal device, The electronic money server, Content payment service system, characterized in that for processing the requested electronic money payment in conjunction with the corresponding content providing server corresponding to the content to be requested for payment based on the electronic money payment request from the terminal device. An electronic money control unit that provides an electronic money function in response to the electronic money; A content storage unit for storing content; And If playback of predetermined content of the contents stored in the content storage unit is selected, the content is played within the preset free playable criterion of the selected content, and based on a charging policy included in the content Displaying an electronic money payment menu for inducing payment for the content using the electronic money held in the electronic money control unit, and requesting electronic money payment to the electronic money control unit when payment is selected through the electronic money payment menu. Terminal device comprising a content control unit. The method of claim 3, wherein The content is, DRM media contents to which DRM (Digital Rights Management) has been applied, rights to use (ROs) including the free reproducible criteria corresponding to the DRM media contents and a Contents Encryption Key (CEK), and electronic And at least one of the predetermined charging policy for inducing payment using money and payment related information for processing payment using electronic money. The method of claim 4, wherein The content control unit, On the basis of the usage rights (RO) including the free playable criterion including at least one of free play count information, free play period information, and free play section information of the DRM media content of the selected content for playing; And decoding the DRM media content on the basis of the DRM encryption key of the user right (RO) when the playback condition at the time when the playback is selected belongs to the free playable criterion. The method of claim 4, wherein The content control unit, On the basis of the charging policy including at least one of electronic money payment menu information and payment menu notification time information included in the selected content, when the reproduction reaches the preset payment menu notification time, the electronic money payment menu information A free play end message indicating that the free play ends, a payment amount information for each purchase and playback condition corresponding to the DRM media content, a payment request item for each payment amount, an electronic money charging item, and the electronic money control unit. Terminal device characterized in that for displaying the electronic money payment menu including at least one of the balance information of the electronic money through interlocking. The method according to any one of claims 4 to 6, The electronic money control unit, When the electronic money payment is requested from the content control unit as the payment is selected in the electronic money payment menu, request the electronic money payment corresponding to the content to an external electronic money server based on the payment related information included in the content. And informing the content controller of the payment completion when the electronic money payment by the electronic money server is completed. The method of claim 7, wherein The content control unit, When the payment is received corresponding to the content, the terminal device characterized in that for updating at least one of the usage rights (RO) and the billing policy included in the content to meet the purchase and playback conditions corresponding to the payment completion . The method of claim 8, The content control unit, When the payment completion is received in response to the contents, the purchase right condition is recognized according to the payment amount of the corresponding payment request item selected in response to the payment completion, and the usage right corresponding to the DRM media content included in the contents is received. And an interface with an external corresponding content providing server so that the RO and the billing policy are updated with the RO and billing policy meeting the purchase and playback conditions. Reproducing the content within a preset free playable criterion of the content when the reproduction of predetermined content for which payment has not been processed by the terminal device is selected; Displaying, by the terminal device, an electronic money payment menu for inducing payment for the content using an electronic money held therein based on a charging policy included in the content; If the payment is selected through the electronic money settlement menu, requesting the electronic money payment from the terminal device to the electronic money server; And And the electronic money server processing the requested electronic money payment in association with the corresponding content providing server corresponding to the content requested for payment based on the electronic money payment request from the terminal device. Payment service method. The method of claim 10, When the predetermined content is requested from the terminal device, the content providing server further comprises the step of providing the terminal device with the corresponding content, the payment has not been processed according to the request. Reproducing the content within a preset free playable criterion of the selected content when a reproduction of predetermined content on which payment has not been processed is selected; Displaying an electronic money payment menu for inducing payment for the content using electronic money based on a charging policy included in the content; And If the payment is selected through the electronic money settlement menu, requesting an electronic money payment to an external electronic money server through a pre-installed electronic money function. 13. The method of claim 12, The content is, DRM media contents to which DRM (Digital Rights Management) has been applied, rights to use (ROs) including the free reproducible criteria corresponding to the DRM media contents and a Contents Encryption Key (CEK), and electronic And at least one of the preset charging policy to induce payment using money and payment related information for processing payment using electronic money. The method of claim 13, Reproducing the content, On the basis of the usage rights (RO) including the free playable criterion including at least one of free play count information, free play duration information, and free play duration information of the DRM media content of the selected content, And replaying the DRM media content based on the DRM encryption key of the user right (RO) when the playback condition at the time when the playback is selected belongs to the free playable criterion. The method of claim 13, Displaying the electronic money settlement menu, Determining whether the preset payment menu notification time is reached based on the charging policy including at least one of electronic money payment menu information and payment menu notification time information included in the selected content; When the payment menu notification time is reached, a free playback end message indicating that the free play is terminated based on the electronic money payment menu information, payment amount information for each purchase and playback condition corresponding to the DRM media content, and for each payment amount And displaying the electronic money settlement menu including at least one of balance information of the electronic money through interworking with a payment request item, an electronic money charging item, and an electronic money function. How to use your content. The method according to any one of claims 13 to 15, Requesting the electronic money payment to an external electronic money server, As payment is selected in the electronic money settlement menu, the electronic money function requests an electronic money payment corresponding to the content from an external electronic money server based on the payment related information included in the content, Method for using the content of the terminal device characterized in that for receiving the payment is provided as the completion of the electronic money payment by the electronic money server. The method of claim 16, If the payment completion is received corresponding to the content, further comprising updating at least one of a usage right (RO) and a billing policy included in the corresponding content to meet the purchase reproducing condition corresponding to the payment completion; Method for using the content of the terminal device. The method of claim 17, The updating step, Recognizing a purchase reproduction condition according to a payment amount of a corresponding payment request item selected for payment in response to the payment completion, when the payment completion is received in response to the contents; Interface with an external corresponding content providing server so that the right of use (RO) and the charging policy corresponding to the DRM media content included in the corresponding content are updated to the right of use (RO) and the charging policy corresponding to the purchase reproduction condition. Method of using the content of the terminal device comprising the step of performing. 19. A computer-readable recording medium having recorded thereon a program of instructions for processing an unpaid content playback and an electronic money payment by performing each step of the method according to any one of claims 12 to 18.

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