KR20220020844A - user terminal, method of distributing digital content, and computer program - Google Patents

Abstract

According to the embodiments of the present invention, the present invention manages an issuance amount of a digital content usage certificate title using a block of a blockchain that cannot be forged, and prevents a distribution of an invalid digital content and a usage certificate title. The method for distributing the usage certificate title of the digital content comprises: a step of receiving; a step of generating the first content; a step of converting and generating one first usage certificate title; and a step of performing a payment.

Description

A user terminal, a method of distributing a certificate of right to use digital content, and a computer program stored in a medium for executing the method {user terminal, method of distributing digital content, and computer program}

The present specification discloses a user terminal, a method of distributing a certificate of right to use digital content, a computer program stored in a medium to execute the method, and more specifically, a point to additionally process a payment process for ownership do it with

Blockchain, also called public transaction ledger, is a technology that prevents hacking that can occur due to a centralized server during transactions with a decentralized algorithm. Whereas existing financial companies keep transaction records on a centralized server, 　 block chain sends transaction details to all users participating in the transaction, and uses a method to prevent data falsification by collating them with each transaction. Blockchain is applied to Bitcoin, a representative online virtual currency. Bitcoin transparently records transaction details in a ledger that anyone can view, and multiple computers using Bitcoin verify this record to prevent hacking.

Blockchain is not simply a technology that is applied only to Bitcoin, but it is a technology that has the effect of reducing the enormous cost of maintenance and security of the database (DB) by applying it to storing various data.

In this 　blockchain technology, anyone who receives a transaction sent to the network can create a block, but among them, the block of the node that generated the block the fastest is adopted. Also, when multiple blocks are created at a similar point in time, the chain is divided into several branches, which are arranged and synchronized by deleting the longest chain later.

According to embodiments of the present invention, there may be provided a method of distributing a certificate of right to use digital content as much as the issued quantity, a server performing the method, and a computer program stored in a medium for executing the method.

A method of distributing a digital content use right deed according to embodiments of the present invention as much as the issued amount; generating, by the content management server, as many blocks as the issued quantity in response to the digital content use right certificate, and adding it to the block chain system; generating, by the content management server, a certificate including a key value of the generated block in association with digital content corresponding to the certificate of use right; receiving, by the content management server, a purchase request for the digital content use right certificate from a first user terminal; transmitting, by the content management server, the digital content use right certificate to the first user terminal so that the digital content use right certificate is stored in the content folder of the first user terminal; transmitting, by the content management server, a first certificate corresponding to the remaining quantity among the issued quantity to the first user terminal and storing the first certificate in association with the digital content corresponding to the use right certificate; and transmitting, by the content management server, the first authentication value included in the first certificate and device information of the first user terminal to an ownership information database to update owner information of the digital content.

In this embodiment, when a request to increase the issued quantity by the first quantity is received, blocks corresponding to the certificate of the digital content are repeatedly generated by the first quantity, and the key value of one or more generated blocks is used as the authentication value. generating one or more certificates.

In this embodiment, in response to a request to move the digital content use right certificate from the first user terminal to the second user terminal, the first certificate stored in the first user terminal is moved to the second user terminal, , changing the owner information of the first certificate to the device information of the second user terminal;

This embodiment may include a step of synchronizing the generated block information on a distributed system by generating blocks equal to the issued quantity of the digital content use right certificate and changing the state of the generated block to a normal block. .

In this embodiment, when a load request for the digital content is received from the first user terminal, the first certificate associated with the digital content is transferred to the block chain system, and whether a block corresponding to the first certificate exists and, when the block corresponding to the first certificate does not exist, processing so that the digital content is not played.

In this embodiment, when a request for checking whether the digital content is illegally copied is received from the second user terminal, the first certificate associated with the digital content is transmitted to the block chain system, and the block corresponding to the first certificate is transmitted to the block chain system. It may include the step of receiving the presence or absence of the transmission to the second user terminal.

The present embodiment includes the steps of generating a plurality of certificates in blocks equal to the issued quantity of the digital content use right certificate and determining whether digital content is illegally copied using a uniquely generated key value through the generated block. may include

A computer program according to an embodiment of the present invention may be stored in a medium to execute any one of the methods according to an embodiment of the present invention using a computer.

In addition to this, another method for implementing the present invention, another system, and a computer-readable recording medium for recording a computer program for executing the method are further provided.

Other aspects, features and advantages other than those described above will become apparent from the following drawings, claims, and detailed description of the invention.

According to embodiments of the present invention, it is possible to manage the issuance quantity of digital content use right certificates and prevent the distribution of invalid digital content and use right certificates by using blocks of a block chain that cannot be forged or altered.

1 is a diagram illustrating a schematic structure of an entire system to which a content use right management method using a block chain according to embodiments of the present invention is applied.
2 is a block diagram of a content management server according to embodiments of the present invention.
3 to 8 are flowcharts of a content management method according to embodiments of the present invention.
9 is a block diagram of a user terminal according to embodiments of the present invention.
10 to 12 are exemplary diagrams of user interfaces provided according to embodiments of the present invention.
13 is a block diagram of a content transaction system according to another embodiment of the present invention.
14 is a block diagram of a storage medium 330 of a user terminal according to embodiments of the present invention.
15 and 17 are flowcharts of a content distribution method according to embodiments of the present invention.

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. Effects and features of the present invention, and a method for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various forms.

Hereinafter, various embodiments will be described in detail with reference to the drawings. The embodiments described below may be modified and implemented in various different forms. In order to more clearly describe the characteristics of the embodiments, detailed descriptions of matters widely known to those of ordinary skill in the art to which the following embodiments belong will be omitted.

On the other hand, in the present specification, when a component is "connected" with another component, this includes not only a case of 'directly connected' but also a case of 'connected with another component interposed therebetween'. In addition, when a component "includes" another component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

Also, terms including ordinal numbers such as 'first' or 'second' used in this specification may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

In this specification, "blockchain" refers to a ledger that utilizes a software element consisting of an algorithm in which blocks connected in order in order to secure and maintain integrity negotiate service usage history information using encryption and security technology. It may refer to a distributed P2P (Peer to Peer) system. Here, the distributed P2P system may be a special type of distributed system. In addition, in a P2P system, all nodes in a network can provide resources (processing power, storage space, data or network bandwidth, etc.) to each other without the coordination of a central node. In addition, "blockchain" may refer to a distributed ledger technology in which the ledger that records usage history information is distributed to a P2P network rather than a central server of a specific institution, and nodes in the network record and manage it jointly.

In this specification, "terminal" may be a smartphone, tablet PC, PC, TV, smart TV, mobile phone, personal digital assistant (PDA), laptop, or non-mobile computing device, but is not limited thereto.

In this specification, a “node” may mean a component within a network of a blockchain. For example, a node may be a special-purpose computer, a general-purpose computer, a supercomputer, a mainframe computer, a personal computer, a smartphone, a tablet PC. and the like, but is not limited thereto.

1 is a diagram illustrating a schematic structure of an entire system to which a content management method using a block chain according to embodiments of the present invention is applied.

Referring to Figure 1, the online service system is a block chain authentication server 110 and a block chain system 100 consisting of a plurality of block chain servers 120, 122, 124, a content management server 200, a content management server 200 and a block It includes gateway servers 170 , 172 , 174 that connect the chain system 100 . The user terminal 300 is connected to the content management server 200 through a wired/wireless communication network.

The content management server 200 is a server that provides a content management service. For example, the content management server 200 is a server that stores and manages owner information of digital content, and may exist in a variety of forms according to embodiments. The content management server 200 may be an existing system used to provide a content management service, and such an existing system is referred to as a legacy system.

The content management server 200 may generate a block in the block chain system 100 upon receiving a request for issuance of a digital content use right certificate from the user terminal 300 . The deed of use right refers to a deed file related to the right to use a predetermined digital content or a plurality of digital contents. The content management server 200 may manage a certificate associated with a certificate of right to use digital content using a block chain system. The content management server 200 may determine the validity of the certificate of use right certificate and/or the account validity of the digital content using the block chain system, but is not limited thereto, and an external device such as a database By using it, it is possible to determine the validity of the certificate of the right to use digital content, the certificate of the use right, and/or the validity of the account.

The block chain authentication server 110 is an authentication server connected to the block chain system 100, and the block chain server 120, 122, 124 generates a certificate to verify the validity of the certificate of use right certificate and/or the use right certificate of digital content. . The block chain authentication server 110 may be implemented as a part of the block chain servers 120 , 122 , 124 constituting the block chain system 100 , or may be implemented with a structure connected to the block chain servers 120 , 122 , 124 . The block chain authentication server 110 may verify the validity of an account or digital content use right certificate and/or certificate, and may perform various conventional methods as a validation method.

The gateway servers 170 , 172 , and 174 transmit and receive data between the content management server 200 and the block chain system 100 . When the format or protocol of data used in the content management server 200 is different from the format or protocol of data used in the block chain system 100, the gateway servers 170, 172, 174 transmit the data to the content management server 200 or block It is deformed to fit the chain system 100 . Various conventional methods for converting data between heterogeneous networks or heterogeneous systems may be applied to the gateway servers 170 , 172 , and 174 .

The gateway servers 170 , 172 , and 174 may receive and store the block key value from the block chain authentication server 110 . When the user logs in, the gateway servers 170 , 172 , 174 may verify the validity of the user's account (ID) through the block chain authentication server 110 .

This embodiment shows the gateway servers 170, 172, 174 between each content management server 200 and the block chain system 100, but the gateway servers 170, 172, 174 are implemented as a part of the block chain server 120, 122, 124, or content management It can be implemented as a part of the server 200 and can be variously modified according to the embodiment.

The block chain servers 120, 122, and 124 distribute and store the key value of the certificate corresponding to the digital content use right certificate in the block chain. Since the configuration of storing data in the block chain, such as conventional Bitcoin, is already widely known, a description of a specific method of storing data in the block chain will be omitted. The block chain servers 120 , 122 , and 124 may transmit the processing result of the transaction to the content management server 200 through the gateway servers 170 , 172 , and 174 .

2 is a block diagram of a content management server 200 according to embodiments of the present invention.

As shown in FIG. 2 , the content management server 200 may include a processor 210 , a communication unit 220 , and a storage medium 230 . However, not all illustrated components are essential components. The content management server 200 may be implemented by more components than the illustrated components, and the content management server 200 may be implemented by fewer components. Hereinafter, the components will be described. The node shown in FIG. 1 may include the same components as the content management server 200 .

According to some embodiments, the communication unit 220 may communicate with an external device. Specifically, the communication unit 220 may be connected to a network by wire or wirelessly to communicate with an external device. Here, the external device may include nodes on a blockchain network and a terminal of a business operator.

The communication unit 220 may include a communication module supporting one of various wired and wireless communication methods. The communication module may be a short-range communication module or a wired communication module.

According to some embodiments, the storage medium 230 includes a flash memory type, a hard disk type, a multimedia card micro type, and a card type memory (SD, XD memory). etc.), RAM (Random Access Memory) SRAM (Static Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read-Only Memory) magnetic memory , a magnetic disk, and an optical disk may include at least one type of storage medium. The storage medium 130 may store at least one program for executing the method of operation of the content management server 200 in a computer. At least one program stored in the storage medium 230 may be classified into a plurality of modules according to functions.

According to some embodiments, the processor 210 controls the overall operation of the content management server 200 and may include at least one processor such as a CPU. The processor 210 may include at least one specialized processor corresponding to each function or may be an integrated processor.

According to some embodiments, the processor 210 may execute a program stored in the storage medium 230 , read data or files stored in the storage medium 230 , or store a new file in the storage medium 130 . . Also, the processor 210 may execute instructions stored in the storage medium 130 .

The storage medium 230 may include a usage right certificate issuing unit 231 , a validity determining unit 232 , a usage right certificate management unit 233 , and a content list providing unit 234 .

When a request for issuing a certificate of use right of digital content is received, the use right certificate issuing unit 231 may issue a use right certificate for the digital content corresponding to the issued quantity.

In another embodiment, the usage right certificate issuing unit 231 may access the block chain system to generate and control to be added as many blocks as the issued amount of the usage right certificate of digital content. The certificate of use issuer 231 may receive the key values of the added blocks, and generate certificates corresponding to the certificate of use including the key values of the blocks. Certificates may be generated according to the issued quantity of the digital content use right certificate and managed in connection with the digital content use right certificate. The certificate may be a part of the proof of use right, and one certificate may be generated for each proof of use right. The certificate may include identification information corresponding to the digital content, and the identification information corresponding to the digital content may be information generated based on metadata of the digital content. Digital content may be generated including one or more content. The certificate may further include identification information related to the issued quantity of one digital content. The certificate may be used to determine the validity of the digital content and/or the deed of right to use the digital content.

The use right certificate issuance unit 231 may receive a request for additional issuance of the use right certificate in response to the additional issuance of the digital content. When a request for additional issuance of a use right certificate is received, the use right certificate issuing unit 231 repeatedly generates a block corresponding to the certificate of the digital content use right certificate by a first quantity and authenticates the key value of one or more generated blocks You can create certificates by value. In another embodiment, the block corresponding to the certificate of the certificate of use may be managed in a block chain system, but is not limited thereto and may be managed in a general database. The generated certificate may be delivered according to distribution (transaction) of digital content and/or a package of digital content. It is possible to prevent re-distribution (transaction) of digital content without a corresponding proof of use right.

The validity determining unit 232 may determine the validity of the digital content use right certificate using the certificate and/or the digital content use right certificate. The validity determining unit 232 may determine the validity of the digital content by using the certificate of the digital content.

Specifically, the validity determining unit 132 may transmit data including an authentication value included in the certificate to the block chain system, and receive whether a block having a key value corresponding to the authentication value exists. The validity determination unit 232 may determine the validity of the digital content use right certificate according to the existence of the block. The digital content(s) of a valid Proof of Use may be determined to be valid rather than illegally created or traded.

The validity determination unit 232 may receive the account and the digital content use right certificate from the user terminal and determine the validity of the account and the validity of the digital content use right certificate. The validity determination unit 232 may obtain a relationship between the account and the certificate of use right by using the certificate included in the certificate of use right, and determine the validity of the relationship. The certificate may further include information related to the owner's account.

When a request for a certificate of use right of digital content is received, the use right certificate management unit 233 may process it. When a purchase request for a digital content use right certificate is received, the use right certificate management unit 233 delivers one or more digital content, a digital content use right certificate and certificate to the user terminal, and one or more digital content, a digital content use right certificate and storing the certificate in the content folder of the user terminal. The proof of use may include a certificate or a code corresponding to the certificate. When a purchase request for a usage right certificate (content) is received, the usage right certificate management unit 233 may determine whether there is a remaining quantity of the usage right certificate among the issued quantity. When there is a remaining quantity, it is possible to manage digital content and/or a certificate of use right of digital content to be distributed or traded.

When a request for purchase or transfer is received, the certificate of use management unit 233 may update owner information of the certificate of use right of digital content. Owner information may be included in the certificate of the certificate of use, but may be stored in a storage medium connected to the certificate.

The digital content management unit 232 may determine the validity of the account of the sender of the request, and control so that only the request for the digital content use right certificate from the valid account is processed. The validity of the account can be determined based on the existence of the corresponding block. The certificate of use management unit 233 may transmit the user's account and account-related data to the block chain and receive whether a block corresponding to the account exists.

The use right certificate management unit 233 may store in the user terminal of the owner of the digital content without storing and managing the use right certificate and/or certificate of the distributed (transacted) digital content. That is, the purchased certificate transmitted to another user terminal may be permanently removed from the memory (storage medium) of the user terminal of the previous owner.

When a request for changing the owner of the certificate of use right of digital content (eg, transfer or transfer request, etc.) is received, the certificate of use management unit 233 transmits it to the ownership information database, and transmits it to the owner information ( device information of the owner or the owner's user terminal) can be updated.

For example, the use right certificate management unit 233 moves the use right certificate and/or the first certificate stored in the first user terminal to the second user terminal as an assignee. The move command may be generated by a signal such as a purchase, a transaction, or the like. According to the movement command, the use right certificate management unit 233 removes digital content, the digital content use right certificate, and/or the first certificate from the first user terminal.

When a request to load the digital content is received, the usage right management unit 233 may determine the validity of the digital content and load the valid digital content. Specifically, the certificate of use management unit 233 transmits the certificate associated with the certificate of use right of digital content to the block chain system, receives the existence of a block corresponding to the certificate, and when the block corresponding to the certificate does not exist, It can be processed so that the reproduction (load) of digital content is not performed. The use right certificate management unit 233 may reproduce (load) digital content when a block corresponding to the certificate exists.

When a request for checking whether digital content and/or the use right certificate of digital content is illegally copied is received, the certificate of use management unit 233 transmits the certificate associated with the certificate of use right of digital content to the block chain system and corresponds to the certificate It is possible to receive the existence of a block to be used and transmit it to the user terminal.

When the login request of the user terminal is received, the content list providing unit 234 may provide a listing screen provided by the certificate of use right of the digital content possessed by the user to the user terminal. The content list providing unit 234 may check the validity of the user's account and the validity of the digital content use right certificate through the block of the node of the block chain system.

Blocks in the blockchain can prevent digital content from being downloaded and copied without limiting the quantity.

3 to 7 are flowcharts of a content management method according to embodiments of the present invention.

In S110, the content management server 200 determines the issuance quantity of the digital content use right certificate.

In S120, the content management server 200 generates N blocks as many as the issued quantity in response to the digital content usage right certificate and stores it in the block chain.

In S130, the content management server 200 generates certificates including key values of blocks generated in association with the digital content usage right certificate. The content management apparatus receives key values of blocks generated in correspondence with the certificate of use right of digital content to be issued, and generates certificates including key values of the received blocks. The certificates generated in this way may be stored in correspondence with the certificate of use right of digital content.

In S210, the content management server 200 receives a request for use of digital content from the first user terminal.

In S220, the content management server 200 creates a copy of the digital content and transmits it to the first user terminal. The first user terminal downloads a copy of the requested digital content.

In S230, the content management server 200 transmits a certificate of use right and/or a first certificate related to digital content to the first user terminal. The first user terminal receives and stores the first certificate having a function of verifying the validity of the purchased digital content. The certificate of right to use digital content and the first certificate may be linked and managed.

In S240, the content management server 200 transmits the first authentication value and the device information of the first user terminal to the database to update the owner information of the digital content use right certificate.

When the transfer of ownership is completed by the purchase request of the user terminal, the owner information of the digital content use right certificate is updated. The owner information of the digital content may include a first authentication value, a certificate of use right, and/or device information of the first user terminal. The first authentication value may be a key value of a corresponding block. The device information of the first user terminal may be a physical address value of the first user terminal or a randomly generated and set key value.

Through this, in order to distribute (trade) digital content in a limited quantity, the certificate is distributed (traded) in connection with the digital content use right certificate. Only a certificate of right to use digital content including a valid certificate can be managed to be valid. When the authentication value of the certificate of use right of digital content does not match the key value of the block, it may be determined that the digital content and/or the certificate of use right is invalid.

5, in S310, the content management server 200 receives a request for additional issuance of the previously issued digital content use right certificate.

In S320, the content management server 200 generates a block equal to the first quantity to be added in response to a request for additional issuance of a usage right certificate, generates a certificate using the key value of the generated block as an authentication value, and links the certificate Create a proof of right of use.

Through this, the use right certificate and/or certificate of digital content copied and distributed in a predetermined quantity can be managed through an unforgeable block included in the block chain. In the block chain system, the number of included nodes is continuously added, and among the nodes of the block chain system including the added nodes, information that is not forged or tampered can be stored/managed through blocks stored in a fixed number of nodes.

As shown in FIG. 6 , in S410 , the content management server 200 may receive a request for transfer of a content use right certificate. Here, the transfer request is to change the owner of the deed of use right of digital content, and may include information on the transferor and transferee of the deed of use right.

In S420, the content management server 200 moves the digital content usage right certificate and/or the first certificate stored in the first user terminal to the second user terminal. The deed and/or certificate of the right to use digital content is transferred to the transferee's terminal. The content management device determines the validity of the deed of right to use digital content moving to the change of owner information, and when it is determined that the deed of right to use the digital content is valid, the digital content and/or deed of the right to use digital content to the second user It is transmitted to the terminal, and the certificate associated with the certificate of right to use digital content is transmitted to the second user terminal. The certificate of right to use digital content and/or the first certificate stored in the first user terminal may be removed.

In S430, the content management server 200 changes the owner information of the usage right certificate to the device information of the second user terminal.

It is possible to prevent the use right certificate and/or certificate of digital content from being copied and transmitted through the content management device that handles the movement of the digital content use right certificate.

7, in S510, the content management server 200 adds a block to the first node of the block chain system in conjunction with the block chain system in order to distribute the digital content use right certificate as much as a predetermined issued quantity.

In S520, the block chain system blocks the block of the first node.

In S530, the content management server 200 receives the key value of the block from any one node of the block chain system, and generates certificates including the key values of the block generated in connection with the digital content use right certificate.

As shown in FIG. 8 , in S610, the content management device receives a wallet inquiry request from the first user terminal.

In S620, the content management server 200 determines the validity of the account of the first user. The content management device determines whether the first user's account is an account existing on the block chain. The content management server 200 requests the existence of a block corresponding to the account of the first user or the existence of a block corresponding to the code of the account as an arbitrary node of the block chain, and based on the existence of the block, the first The validity of the user's account may be determined.

In S630, if the first user's account is valid because there is a block corresponding to the account, the content management server 200 searches for a certificate of use right to which the first user has the right to use, and at least one digital corresponding to the certificate of use right. You can create listing information for the content. The content management server 200 may change the listing information including one or more digital content associated with the valid use right certificate by determining the validity of each certificate of use right of digital content included in the listing information.

In S640, the content management server 200 transmits the listing information to the first user terminal, and may control the first user terminal to provide one or more digital content based on the listing information of the digital content.

In S650, the content management server 200 may receive a digital content selection input. In S660, the content management server 200 may reproduce the first digital content through the first user terminal in response to the digital content selection input.

9 is a block diagram of a user terminal 300 according to embodiments of the present invention.

The user terminal 300 illustrated in FIG. 9 may include a communication unit 320 , a storage medium 330 , and a processor 310 . However, not all illustrated components are essential components. The user terminal 300 may be implemented by more elements than the illustrated elements, and the user terminal 300 may be implemented by fewer elements than that. Hereinafter, the components will be described.

According to some embodiments, the communication unit 320 may communicate with an external device. Specifically, the communication unit 320 may be connected to a network by wire or wirelessly to communicate with an external device. Here, the external device may include nodes on the blockchain network and the content management server 300 .

The communication unit 320 may include a communication module that supports one of various wired and wireless communication methods. The communication module may be a short-range communication module or a wired communication module.

According to some embodiments, the storage medium 330 includes a flash memory type, a hard disk type, a multimedia card micro type, and a card type memory (SD, XD memory). etc.), RAM (Random Access Memory) SRAM (Static Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read-Only Memory) magnetic memory , a magnetic disk, and an optical disk may include at least one type of storage medium. The storage medium 330 may store at least one program for executing the content management method in a computer. At least one program stored in the storage medium 330 may be classified into a plurality of modules according to functions.

According to some embodiments, the processor 310 controls the overall operation of the user terminal 300 and may include at least one processor such as a CPU. The processor 310 may include at least one specialized processor corresponding to each function or may be an integrated processor.

According to some embodiments, the processor 310 may execute a program stored in the storage medium 330 , read data or files stored in the storage medium 330 , or store a new file in the storage medium 330 . . In addition, the processor 310 may execute instructions stored in the storage medium 330 .

The processor 310 receives digital content, a certificate of right to use digital content, and/or a certificate from the content management server 200 and stores the received digital content in a content folder. The processor 310 may perform an operation according to data transmission/reception with the content management server 200 . The storage medium 300 of the user terminal will be described in detail with reference to FIG. 14 .

10 to 12 are exemplary diagrams of user interfaces provided according to embodiments of the present invention.

The digital content may include one or more of various contents classified as works, such as a sound source, a moving picture, an image, a webtoon, a web novel, and the like. Digital content can be converted into a deed of right to use in a transaction unit.

The certificate of right to use digital content may be implemented in a form having a front and a back in the form of a digital card. The certificate of right to use digital content can be rotated from the front (A1) to the rear (A2) and from the rear (A2) to the front (A1) with a flip effect that rotates and flips in response to a user input such as a touch. The back side of the certificate of right to use digital content may include information on actual content (sound source, video, image, etc.).

The front side (A1) of the digital content usage right certificate includes a representative image of the content, and the representative image may be implemented in a form including an effect that cannot be copied with a capture function, for example, it may have the form of a moving image. there is.

The back side A3 of the digital content usage right may include a plurality of areas as shown in FIG. 11 . The back side (A3) of the digital content use right certificate provides a banner area (I31) for expressing title information, an area (I32) for displaying the artist name or work name, and a digital coupon associated with the digital content use right certificate. Code area (I33) to navigate to the page, representative icon area (I34) associated with the artist or work name of each digital content, area (I35) for displaying information such as genre and publisher of each digital content (I35) It may include an area I36 for displaying list information of one or more digital contents of the deed of right.

In response to the selection input for area I36 of the back side (A3) of the digital content use right certificate, it is possible to move to the detailed content providing screen (A4).

The content providing screen A4 may be implemented so that the display area of the digital content of the certificate of use is changed in response to the left and right sliding input. The content providing screen A4 may sequentially arrange and display one or more digital contents of the usage right certificate. When the horizontal size exceeds the display screen, the display area may be changed by a left-right sliding input.

On the back side (A3) of the digital content use right certificate, when a selection input for I33 is received, an area (I51) providing a code corresponding to a digital coupon associated with the digital content use right certificate, coupon content is described A description area I52 may be provided. Information such as contents of services and products, contents of provision, scope of provision, restrictions, and validity period may be provided through the description area I52 . The used digital coupon may be provided with a distinguishing visual effect. Digital coupons used by the Digital Content Proof of Use may be removed from the digital content.

13 is a block diagram of a content transaction system according to another embodiment of the present invention.

The content distribution system may include a content management server 200 , user terminals 301 , 302 , ... 30n , and a database 400 .

The user terminals 301, 302, ... 30n perform a function of generating content and distributing the content to terminals of other users.

The content generated in the user terminal 301 may be transmitted to the user terminal 302 through the content management server 200 . The content management server 200 may distribute a program for content creation and distribution to the user terminals 301, 302, ... 30n.

The user terminal 301 may generate a certificate of use right of a new transaction unit by combining contents purchased through a predetermined path. The content may go through a process of being converted into a form that can be distributed as a certificate of use right. The certificate of use right may be registered in the content management server 200 and converted into a form that can be distributed. The edited content may be converted into a form that can be distributed while being registered in the content management server 200 .

The user terminal 301 may transmit a certificate of use right for the edited content to the user terminals 302, ... 30n of other users. The deed of right to use the edited content may be circulated in a fixed quantity.

The database 400 is a computing device including one or more processors, and may be implemented by distributing one computing device or a plurality of computing devices.

The database 400 may store and manage information related to the deed of use right, information related to the certificate included in the deed of use right, information about the owner, and information about the quantity of deeds of use right.

The information related to the certificate of use may include identification information, a code corresponding to an owner, a code generated based on metadata of each content, and the like.

Data stored in the database 400 may be updated through the content management server 200 and may also be updated through a predetermined user terminal.

14 is a block diagram of a storage medium 330 of a user terminal according to embodiments of the present invention. Although the storage medium of the user terminal 300 is described in FIG. 14 , the storage medium of the user terminals 301 , 302 , ..., 30n may also have the same structure as in FIG. 14 .

The storage medium 350 may include a content management unit 351 , a content editing unit 352 , a content distribution unit 353 , and a usage right certificate management unit 354 to provide a service for managing a tradable usage right certificate. can

The content management unit 351 may manage content corresponding to a legal work. The content management unit 351 may store and manage content in various formats, such as sound sources, art, webtoons, and web novels.

The content management unit 351 may manage content generated by a user terminal without a download history. The contents generated by the user terminal may refer to those generated through a photo taking application, a voice recording application, etc. installed in the user terminal. The content management unit 351 may receive a certificate of the right to use the content generated by the user terminal legally.

The content management unit 351 may create a list of contents associated with the certificate of use right, and store and manage it.

The content management unit 351 may determine the distribution possibility of the content based on the meta data of the content. Here, the metadata may include content creation time information, content manufacturer information, content creator information, content creation time information, content publication quantity, content download count, content title information, content serial number, etc. can

Here, the distribution possibility of the content may be determined based on whether the content is original, whether the content is purchased, whether the content is illegally distributed, and whether the content is illegally copied. The distribution possibility of the content may be determined as true when the content is an original, legally purchased content, non-illicitly distributed content, and/or illegally copied content.

For example, the content management unit 351 searches for the second content based on the title of the first content, creator information of the first content, and creation time information of the first content from among the metadata of the first content, By comparing the content and the second content, when the second content and the first content match, whether the first content is an original may be determined as true.

The content management unit 351 searches for the second content based on the serial number of the first content, information on the issued quantity of the first content, and the number of downloads of the first content, and compares the first content with the second content to obtain the first content When the and the second content match, whether to purchase the first content legally may be set to true.

The content management unit 351 searches for the second content based on the serial number of the first content, and when the information on the second content matches the publication quantity information of the first content and the number of downloads of the first content, the first content can be set to FALSE for illegal distribution.

The user terminal 300 transmits a signal requesting a certificate of use right to the content management server 200 , and the content management server 200 may request issuance of a certificate of use right of the generated content. The content management unit 351 may store and manage content purchased/received through the content management server 200 or content purchased/received from another user terminal.

The content management unit 351 may receive the use right certificates in a circulating format and transmit them to the user terminals 302, ..., 30n of other users. A distributable form of a usage right certificate may be generated through an installed application, and may be generated by the content management server 200 .

The content editing unit 352 may generate one or more contents managed by the content management unit 351 as a usage right certificate. The content editing unit 352 may generate new content including one or more content, and convert the created new content into a usage right certificate.

The content editing unit 352 may generate a new usage right certificate by using the editing application received from the content management server 200 . The editing application may transmit new content to the content management server 200 to issue a new certificate of use right and a corresponding certificate. The editing application may create new content using one or more content for which distribution is true. The editing application may select one template from among the templates stored in the database based on one or more selected contents, and may generate new contents according to the selected template. A template of new content may be selected in consideration of the number of content to be included in the new content, types of content, combinations of content, and the like. The editing application may generate a certificate of right to use the new content.

The content distribution unit 353 may transmit a new usage right certificate generated through the content management unit 351 and/or the content editing unit 352 to the user terminals 302, ..., 30n of other users.

The use right certificate management unit 354 performs a function of managing the content managed by the content management unit 351 and the use right certificate generated through the content editing unit 352 .

Through this, users can distribute (transaction) their use right certificates to other users' user terminals, or distribute newly created use right certificates to other users' user terminals.

15 and 17 are flowcharts of a content distribution method according to embodiments of the present invention.

15 , in S710 , the user terminals 300 , 301 , 302 , ... 30n access the content management server 200 to receive the first content and the second content. A payment is made for possession of the certificates of right to use the first content and the second content.

In S720, the user terminals 300, 301, 302, ... 30n generate a certificate of right to use new content including the first content and the second content. The user terminals 300 , 301 , 302 , ... 30n may generate a certificate of use right by using an editing application or may generate a certificate of use right through the content management server 200 . The first content and the second content in the form of a proof of use may be converted into a new proof of use right. The deed of use right is composed of contents and may be converted into a distributable format.

The user terminals 300, 301, 302, ... 30n determine the validity of the first content and the second content before generating the certificate of use right, and include the valid content among the valid first and second content. You can create a proof of right of use. The validity of the first content or the validity of the second content may be determined by the certificates of the first and second content use rights certificates.

In S730, the user terminals 300, 301, 302, ... 30n request a certificate for a new certificate of use right.

In S740, the user terminals 300, 301, 302, ... 30n may perform resale of a new certificate of use right. The user terminals 300 , 301 , 302 , ... 30n may transmit the usage right certificate to another user terminal or to another user terminal through the content management server 200 .

In FIG. 16 , in S810 , the user terminals 300 , 301 , 302 , ... 30n may generate third content using a camera application, a recording application, or the like.

In S820, the user terminals 300, 301, 302, ... 30n may be converted into a certificate of use right for the third content. The user terminals 300 , 301 , 302 , ... 30n may receive a certificate of the use right certificate from the content management server 200 and generate the use right certificate.

In S830, the user terminals (300, 301, 302, ... 30n) make a payment for the issued quantity for the third content use right certificate, register the third content use right certificate with the content management server, and make a transaction It can be done (S840).

The third content converted into a usage right may be transacted with one or more user terminals.

17 , the first user terminal may receive a selection input for selecting one or more contents (S910).

The first user terminal may determine the validity of the one or more contents by using the certificate of the right to use the one or more contents and the author information (S920). The first user terminal may obtain validity by making a request to the content management server. The content management server 200 may determine validity based on data stored in an external database. In order to determine the validity of one or more contents, the first user terminal may receive information about a usage right certificate stored in an external database. Here, the validity may include the distribution possibility of the content.

The first user terminal may determine whether the validity of the one or more contents is true, and if the validity is true, the first user terminal may convert the one or more contents into a first use right certificate (S930 and S940). If the validity of one or more contents is not true, the first user terminal may convert the contents for which the validity is true into the first certificate of use right (S935). The first certificate of right to use may be generated in a quantity equal to the issuance quantity input by the user.

The first user terminal may upload the first certificate of use right to the purchase page and transmit the first certificate of use right to another user terminal (S950). The content management server 200 may change the owner information of the usage right certificate to information related to the second user terminal. The content management server 200 may change data stored in an external database.

In another embodiment, when a request for moving the second certificate of use right stored in the first user terminal to the third user terminal is received from the content management server, the content management server generates the second certificate of use right stored in the first user terminal 3 and the content management server may transmit a signal for removing the second use right certificate stored in the first user terminal to the first user terminal by moving it to a predetermined storage area of the user terminal.

The information about the proof of use right and the first proof of use right further includes a certificate generated based on metadata and owner information, and the certificate may be stored as a block of a block chain system.

The content management server 200 periodically updates the status information of the first deed of use right, and monitors whether or not the issued quantity of the first deed of use right is exceeded based on the status information of the first deed of use right. there is.

The device described above may be implemented as a hardware component, a software component, and/or a combination of the hardware component and the software component. For example, devices and components described in the embodiments may include, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate array (FPGA). , a programmable logic unit (PLU), microprocessor, or any other device capable of executing and responding to instructions, may be implemented using one or more general purpose or special purpose computers. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. A processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For convenience of understanding, although one processing device is sometimes described as being used, one of ordinary skill in the art will recognize that the processing device includes a plurality of processing elements and/or a plurality of types of processing elements. It can be seen that can include For example, the processing device may include a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as parallel processors.

Software may comprise a computer program, code, instructions, or a combination of one or more thereof, which configures a processing device to operate as desired or is independently or collectively processed You can command the device. The software and/or data may be any kind of machine, component, physical device, virtual equipment, computer storage medium or apparatus, to be interpreted by or to provide instructions or data to the processing device. , or may be permanently or temporarily embody in a transmitted signal wave. The software may be distributed over networked computer systems and stored or executed in a distributed manner. Software and data may be stored in one or more computer-readable recording media.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the embodiment, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

As described above, although the embodiments have been described with reference to the limited embodiments and drawings, various modifications and variations are possible from the above description by those skilled in the art. For example, the described techniques are performed in an order different from the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (2)

Receiving, by the first user terminal, an input for selecting one or more contents managed by the content management unit;
The first user terminal generates the one or more contents as first contents by using an installed application, further generates a certificate of use right of the first contents, and transmits the first contents to the contents management server to To issue a certificate corresponding to the certificate of right to use the first content,
It is determined whether each of the one or more contents is illegally distributed based on at least one of creator information, creation time information, issued quantity, and the number of downloads of each of the one or more contents, and each of the one or more contents is distributed based on the illegal distribution. determining the distribution possibility and generating the first content by using the one or more contents when the distribution possibility of the one or more contents is true;
generating, by the first user terminal, by converting one first use right certificate for the first content including the one or more contents when the distribution possibility is true; and
The method of distributing a digital content use right certificate, including; the first user terminal accessing a content management server and performing a payment for possession of the first use right certificate.
a memory, a communication unit, and a processor;
The processor receives an input for selecting one or more contents managed by the content management unit,
The one or more contents are generated as first contents by using an installed application, and a certificate of the right to use the first contents is further generated, and the first contents are transmitted to the contents management server to obtain the right to use the first contents. to issue a certificate corresponding to the certificate,
It is determined whether each of the one or more contents is illegally distributed based on at least one of creator information, creation time information, issued quantity, and the number of downloads of each of the one or more contents, and each of the one or more contents is distributed based on the illegal distribution. determining the distribution possibility to generate the first content by using the one or more contents when the distribution possibility of the one or more contents is true;
When the distribution possibility is true, one first use right certificate is converted and generated for the first content including the one or more contents,
A user terminal that accesses the content management server and performs payment for possession of the first certificate of use right.

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