KR102478536B1 - user terminal, method of distributing digital content, and computer program - Google Patents

Abstract

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

Description

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

This specification discloses a user terminal, a method for distributing a right to use digital content, and a computer program stored in a medium to execute the method, and more specifically, various contents such as sound sources, art, webtoons, web novels, etc. It is characterized in that it is distributed like a certificate of use right.

Blockchain, also called a public transaction ledger, is a technology that prevents hacking that can occur due to centralized servers during transactions with a decentralized algorithm. In the case of existing financial companies, transaction records are stored in a centralized server, while blockchain sends transaction details to all users participating in transactions and uses a method to prevent data forgery by comparing them for each transaction. Blockchain is applied to Bitcoin, a representative online virtual currency. Bitcoin transparently records transaction details in a ledger that anyone can read, and multiple computers using Bitcoin verify this record to prevent hacking.

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

This “blockchain” technology has a form in which anyone who receives a transaction delivered to the network can create a block, but among them, the block of the node that generated the block the fastest is adopted. In addition, if multiple blocks are created at the same time, the chain is divided into several branches, which are organized and synchronized later by deleting except for the longest chain.

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

Method for distributing digital contents use right certificates by the issued quantity according to embodiments of the present invention Step of the contents management server determining the issued quantity of digital contents use right certificates; generating, by the content management server, as many blocks as the number of issued blocks in response to the certificate of right to use the digital content, and adding them to a block chain system; generating, by the content management server, a certificate including a key value of the generated block in association with the digital content corresponding to the right to use document; receiving, by the content management server, a purchase request for the certificate of right to use the digital content from a first user terminal; transmitting, by the contents management server, the digital contents usage right certificate to the first user terminal so that the digital contents usage right certificate is stored in a contents folder of the first user terminal; transmitting, by the contents management server, a first certificate corresponding to a remaining quantity of the issued quantity to the first user terminal and storing the first certificate in association with the digital contents corresponding to the usage right certificate; and updating, by the content management server, owner information of the digital content by transmitting the first authentication value included in the first certificate and device information of the first user terminal to an ownership information database.

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

This embodiment moves a first certificate stored in the first user terminal to the second user terminal in response to a request for moving the digital content usage right certificate from the first user terminal to the second user terminal, , changing owner information of the first certificate to device information of the second user terminal;

This embodiment may include synchronizing the generated block information on a distributed system by generating blocks as many as the number of issues of the certificate of right to use of digital contents and changing the state of the generated blocks to normal blocks. .

In this embodiment, when a request to load the digital content is received from the first user terminal, a first certificate associated with the digital content is delivered to a blockchain system, and whether a block corresponding to the first certificate is transmitted or not. and, if a 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 confirming illegal copying of the digital content is received from the second user terminal, the first certificate associated with the digital content is transferred to the blockchain system and the block corresponding to the first certificate is transferred. It may include the step of receiving the existence or not and transmitting it to the second user terminal.

In this embodiment, the step of generating a plurality of certificates as many as the number of issues of the certificate of right to use the digital content as a block and the step of determining whether digital content is illegally copied using a key value uniquely generated through the generated block can 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 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 the embodiments of the present invention, it is possible to manage the issued quantity of digital contents usage right certificates and prevent distribution of invalid digital contents and usage right certificates by using blocks of a block chain that cannot be forged or altered.

1 is a diagram showing a schematic structure of an entire system to which a method for managing content usage rights 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 trading 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 have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. Effects and features of the present invention, and methods for achieving them will become clear with reference to the embodiments described later in detail together 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. Embodiments described below may be modified and implemented in various different forms. In order to more clearly describe the characteristics of the embodiments, a detailed description of matters widely known to those skilled in the art to which the following embodiments belong will be omitted.

On the other hand, when a component is said to be "connected" to another component in this specification, this includes not only the case of being 'directly connected', but also the case of being 'connected with another component in between'. In addition, when a certain component "includes" another component, this means that other components may be further included without excluding other components unless otherwise specified.

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. These terms are only used for the purpose of distinguishing one component from another.

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

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

In this specification, a "node" may mean a component within a blockchain network. For example, nodes include special-purpose computers, general-purpose computers, supercomputers, mainframe computers, personal computers, smartphones, and tablet PCs. etc., but is not limited thereto.

1 is a diagram showing 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 FIG. 1, the online service system includes a block chain system 100 composed of a block chain authentication server 110 and 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, and 174 connecting the chain system 100. The user terminal 300 is connected to the content management server 200 through a wired or wireless communication network.

The content management server 200 is a server that provides content management services. For example, the content management server 200 is a server that stores and manages digital content owner information and the like, and may exist in a variety of forms according to embodiments. The content management server 200 may be an existing system used to provide content management services, 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 when receiving a request for issuance of a digital content use right certificate from the user terminal 300 . The certificate of right to use refers to a certificate file related to the right to use predetermined digital contents or a plurality of digital contents. The content management server 200 may manage a certificate associated with a certificate of right to use of digital content using a block chain system. The content management server 200 may use a block chain system to determine the validity of a certificate of right to use of digital content, the validity of a certificate of right to use, and/or the validity of an account, but is not limited thereto, and external devices such as databases may be determined. Using the digital content, it is possible to determine the validity of the right to use certificate, the certificate of the right to use, and/or the validity of the account.

The blockchain authentication server 110 is an authentication server connected to the blockchain system 100, and generates a certificate to verify the validity of the digital content use right certificate and/or the certificate of use right in the block chain server 120, 122, 124. . The blockchain authentication server 110 may be implemented as a part of the blockchain servers 120 , 122 , and 124 constituting the blockchain system 100 or may be implemented in a structure connected to the blockchain servers 120 , 122 , and 124 . The blockchain authentication server 110 can verify the validity of an account or digital content use right certificate and/or certificate, and various conventional methods can be performed as a validity verification 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 form or protocol of data used by the content management server 200 is different from the form or protocol of data used in the block chain system 100, the gateway servers 170, 172, 174 transfer the data to the content management server 200 or block Modify to fit the chain system (100). Various conventional methods for converting data between heterogeneous networks or heterogeneous systems can be applied to the gateway servers 170 , 172 , and 174 .

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

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

The blockchain servers 120, 122, and 124 distribute and store key values of certificates corresponding to certificates of right to use digital contents in a blockchain. Since a configuration for storing data in a block chain, such as conventional bitcoin, is already widely known, description of a specific method for storing data in a block chain will be omitted. The block chain servers 120 , 122 , and 124 may deliver transaction processing results 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 those shown, and the content management server 200 may be implemented by fewer components. Hereinafter, we look at the above components. 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 communicate with an external device by being connected to a network in a wired or wireless manner. Here, the external device may include nodes on a blockchain network and a terminal of an operator.

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

According to some embodiments, the storage medium 230 is a flash memory type, a hard disk type, a multimedia card micro type, or a card type memory (SD or 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 operating method 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 use right certificate issuing unit 231 , a validity determining unit 232 , a using right certificate management unit 233 , and a contents list providing unit 234 .

When a request for issuance of a digital content usage right certificate is received, the usage right certificate issuing unit 231 may issue as many digital content usage right certificates as the issued number.

In another embodiment, the usage right certificate issuing unit 231 may connect to the block chain system to generate and add as many blocks as the number of issued digital content usage right certificates. The use right certificate issuing unit 231 may receive key values of the added blocks and generate certificates corresponding to the use right certificate including the key values of the blocks. Certificates may be generated as many as the issued number of certificates of right to use of digital content and managed in association with the certificate of right to use of digital content. The certificate may be part of the right-to-use certificate, and may be generated one by one for each right-to-use certificate. 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 created by 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 right to use the digital content.

The usage right certificate issuing unit 231 may receive a request for additional issuance of a usage right certificate in response to the additional issuance of digital content. Upon receipt of a request for additional issuance of a right to use certificate, the right to use certificate issuing unit 231 repeatedly generates blocks corresponding to certificates of the certificate of right to use of digital content by a first quantity, and authenticates the key values of one or more generated blocks. You can create certificates with values. In another embodiment, the block corresponding to the certificate of the right to use certificate 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 use right certificate.

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

Specifically, the validity determination unit 132 may transmit data including an authentication value included in the certificate to the blockchain 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 whether a block exists. The digital content(s) of a valid use right document may be determined to be valid and not illegally created or traded.

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

When a request for a digital content usage right certificate is received, the usage right certificate management unit 233 may process the request. When a purchase request for a certificate of right to use of digital contents is received, the certificate management unit 233 transmits one or more digital contents, a certificate of right to use of digital contents, and a certificate to the user terminal, and obtains one or more digital contents and a certificate of right to use of digital contents. And it can be processed to store the certificate in the content folder of the user terminal. The certificate of right to use may include a certificate or a code corresponding to the certificate. When a request for purchase of a right to use certificate (contents) is received, the right to use certificate management unit 233 may determine whether or not there is a remaining number of right to use certificates among issued quantities. When there is a remaining quantity, digital content and/or digital content use right certificates may be managed to be distributed or traded.

When a request for purchase or transfer is received, the certificate management unit 233 may update owner information of the certificate of digital content use. Owner information may be included in the certificate of the right to use document, but may be stored in a storage medium associated with 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 right to use digital content from a valid account is processed. The validity of an account can be determined based on whether a corresponding block exists. The right-to-use certificate management unit 233 may transmit the user's account and data related to the account to the block chain and receive whether a block corresponding to the account exists.

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

When a request to change the owner of the certificate of right to use of digital contents (eg, transfer or transfer request, etc.) is received, the certificate management unit 233 transmits the ownership information database to the owner information of the certificate of right to use of digital contents ( device information of the owner or the owner's user terminal, etc.) may be updated.

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

When a digital content load request is received, the use right certificate management unit 233 may determine the validity of the digital content and load the valid digital content. Specifically, the usage right certificate management unit 233 transmits the certificate associated with the digital content usage right certificate to the blockchain system, receives whether or not there is 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 (loading) of digital contents 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 to confirm illegal copy of digital contents and/or digital contents usage right certificate is received, the certificate management unit 233 transmits the certificate associated with the digital content usage certificate to the blockchain system and responds with the certificate. The presence or absence of the block may be received and transmitted to the user terminal.

When a log-in request is received from the user terminal, the content list providing unit 234 may provide a listing screen provided by a certificate of right to use the digital content owned by the corresponding 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 right to use digital content through the block of the node of the block chain system.

Blocks in the block chain prevent digital contents from being downloaded and copied without limit in 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 issued quantity of digital content use right certificates.

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

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

In S210, the content management server 200 receives a digital content use request 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 right to use certificate and/or a first certificate related to the digital content to the first user terminal. The first user terminal receives and stores the first certificate of the function of verifying the validity of the purchased digital content. The certificate of right to use of 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 certificate of right to use of the digital content is updated. Owner information of the digital content may include a first authentication value, a right to use document, 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 (transact) digital contents in limited quantities, certificates are distributed (transaction) in connection with the certificate of use right of digital contents. Only digital content use right certificates including valid certificates can be managed to be valid. If the authentication value of the certificate of right to use of the digital content does not match the key value of the block, the digital content and/or the certificate of right to use may be determined to be invalid.

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

In S320, the content management server 200 generates blocks as many as the first quantity to be added in response to the request for additional issuance of the right to use certificate, generates a certificate having a key value of the generated block as an authentication value, and associates with the certificate. Generate a right-of-use certificate.

Through this, the use right certificate and / or certificate of digital content copied and distributed in a set number can be managed through a block that cannot be forged and tampered with in the block chain. In the blockchain system, the number of included nodes is continuously added, and among the nodes of the blockchain system including the added nodes, information that is not forged or altered 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 transfer request for a certificate of right to use of content. Here, the transfer request is to change the owner of the certificate of right to use of digital content, and may include information on the transferor and transferee of the certificate of right to use of digital content.

In S420, the content management server 200 transfers the right to use digital content stored in the first user terminal and/or the first certificate to the second user terminal. The certificate and/or certificate of the right to use the digital content is moved to the transferee's terminal. The content management device determines the validity of the certificate of right to use of the digital content that is moved by the change of the owner information, and if it is determined to be a valid certificate of right to use of the digital content, the digital content and/or the certificate of the right to use of the digital content is transferred to the second user. and transmits the certificate associated with the certificate of right to use the digital content to the second user terminal. A certificate of right to use digital content stored in the first user terminal and/or the first certificate may be removed.

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

It is possible to prevent the digital content usage right certificate and/or certificate from being copied and delivered through the content management device that handles the transfer of the digital content usage right certificate.

As shown in FIG. 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 circulate the certificate of right to use of digital content by a predetermined number of issues.

In S520, the block chain system performs block chaining on 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 generated block in association 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 account of the first user is an account existing on a block chain. The content management server 200 requests whether a block corresponding to the account of the first user exists or whether a block corresponding to the code of the account exists to any node of the block chain, and based on whether the block exists, the first The validity of the user's account can be determined.

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

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

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 shown 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 with more components than those shown, and the user terminal 300 may be implemented with fewer components. Hereinafter, we look at the above components.

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

The communication unit 320 may include a communication module supporting one of various wired/wireless communication methods. The communication module may be a short-distance communication module or a wired communication module.

According to some embodiments, the storage medium 330 is a flash memory type, a hard disk type, a multimedia card micro type, or a card type memory (SD or 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 a 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. . Also, the processor 310 may execute instructions stored in the storage medium 330 .

The processor 310 receives digital content, a digital content use right certificate and/or certificate from the content management server 200 and stores them in a content folder. The processor 310 may perform operations according to data transmission and 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.

Digital content may include one or more of various contents classified as copyrighted works, such as sound sources, videos, images, webtoons, and web novels. Digital content can be converted into a right of use of a trading unit.

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

The front side (A1) of the right to use digital content 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, and may have, for example, a moving image. there is.

As shown in FIG. 11 , the back side A3 of the certificate of right to use of digital content may include a plurality of areas. The back side (A3) of the certificate of right to use of digital contents includes a banner area (I31) expressing title information, an area (I32) displaying artist name or work name, and a digital coupon linked to the certificate of right to use digital contents. Code area (I33) to move to the page, representative icon area (I34) associated with the artist or work name of each digital content, area (I35) displaying information such as genre and publisher of each digital content, use rights owned An area 136 displaying list information of one or more digital contents of the right deed may be included.

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

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

On the back side (A3) of the certificate of right to use of digital contents, when a selection input for I33 is received, an area (I51) for providing a code corresponding to a digital coupon associated with a certificate of right to use of digital contents, in which the contents of the coupon are described. A description area I52 may be provided. Information such as service and product content, provided content, provided range, restrictions, and expiration date may be provided through the description area I52. The used digital coupon may be provided with a distinctive visual effect included. A digital coupon used by a certificate of right to use digital content may be removed from the digital content.

13 is a block diagram of a content trading 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 functions of generating content and distributing the content to terminals of other users.

Content generated by 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 programs for creating and distributing content to user terminals 301, 302, ... 30n.

The user terminal 301 may generate a use right certificate 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 right to use. The right to use document may be registered in the content management server 200 and converted into a form that can be distributed. As the edited content is registered in the content management server 200, it can be converted into a form that can be distributed.

The user terminal 301 may transmit the right to use the edited content to the user terminals 302, ... 30n of other users. A certificate of right to use of the edited content may be distributed in a predetermined quantity.

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

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

Information related to the certificate of right to use may include identification information, a code corresponding to the owner, and a code generated based on meta data of each content.

Data stored in the database 400 may be updated through the content management server 200 or 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. 14 illustrates the storage medium of the user terminal 300, but the storage medium of the user terminals 301, 302, ..., 30n may also have the same structure as in FIG.

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

The content management unit 351 may manage content corresponding to legal works. The content management unit 351 may store and manage various types of content such as sound sources, art, webtoons, and web novels.

The content management unit 351 may manage content generated by a user terminal having no download history. Content generated by the user terminal may refer to content generated through a photo taking application, a voice recording application, and the like installed in the user terminal. The content management unit 351 may receive a certificate of right to use of the content created by the user terminal.

The content management unit 351 may create a list of content associated with the right to use document and store and manage the list.

The content management unit 351 may determine distribution possibility of the content based on metadata of the content. Here, the meta data 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, and the like. 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. Distribution possibility of the content may be determined to be true when the content is original, legally purchased content, content not illegally distributed, and/or illegally copied content.

For example, the content management unit 351 searches for second content based on the title of the first content, creator information of the first content, and creation time information of the first content among meta data of the first content, and When the content and the second content are compared and the second content matches the first content, whether or not the first content is original may be set to 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 and the second content to the first content. When the and the second content match, whether or not the first content is legally purchased 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 number of publications of the first content and the number of downloads of the first content, the first content It is possible to set the illegal distribution of to FALSE.

The user terminal 300 transmits a signal requesting a right to use certificate to the content management server 200, and the content management server 200 may request issuance of a right to use certificate 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 other user terminals.

The content management unit 351 may receive the use right certificates in a form that can be distributed and transmit them to the user terminals 302, ..., 30n of other users. The certificate of right to use in a format that can be distributed may be generated through an installed application or may be generated in 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 use right document. The content editing unit 352 may create new content including one or more pieces of content and convert the created new content into a usage right document.

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

The content distribution unit 353 may transmit the new use 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 usage right certificate management unit 354 performs a function of managing the content managed by the content management unit 351 and the usage right certificate generated through the content editing unit 352 .

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

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

As shown in Figure 15, in S710, the user terminal (300, 301, 302, ... 30n) accesses the content management server 200 and receives the first content and the second content. Make a payment for possession of the first content and the second content use right certificates.

In S720, the user terminals 300, 301, 302, ... 30n generate a right to use new content including the first content and the second content. The user terminals 300 , 301 , 302 , ... 30n may generate a use right certificate using an editing application or generate a use right certificate through the content management server 200 . The first content and the second content in the form of a document of right to use may be converted into a new document of right to use. The right to use deed includes content, and may be converted into a form that can be distributed.

The user terminal (300, 301, 302, ... 30n) determines the validity of the first content and the second content before generating the usage right certificate, and among the valid first content and the second content, including the valid content A right of use can be created. The validity of the first content or the validity of the second content may be determined by certificates of right to use the first and second content.

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

In S740, the user terminals 300, 301, 302, ... 30n may resell the new certificate of right to use. The user terminals 300, 301, 302, ... 30n may transmit the use right certificate to other user terminals or to other user terminals 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, and the like.

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

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

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

As shown in FIG. 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 one or more contents by using the use right certificate and author information of one or more contents (S920). The first user terminal may acquire 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 use right document stored in an external database. Here, validity may include content distribution possibility.

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

The first user terminal may upload the first use right certificate to the purchase page and transmit the first use right certificate to other user terminals (S950). The content management server 200 may change owner information of the right to use document 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 to move the second usage right document stored in the first user terminal to the third user terminal is received from the content management server, the content management server transfers the second usage right document stored in the first user terminal to the third user terminal. 3 The content management server may transmit a signal for removing the second usage right document stored in the first user terminal to the first user terminal.

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

The content management server 200 may periodically update current status information of the first right-of-use document and monitor whether or not an issued quantity of the first right-of-use document is exceeded based on the current status information of the first right-to-use document. there is.

The devices described above may be implemented as hardware components, software components, and/or a combination of hardware components and software components. 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. The processing device may run 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 software. For convenience of understanding, there are cases in which one processing device is used, but those skilled in the art will understand that the processing device includes a plurality of processing elements and/or a plurality of types of processing elements. It can be seen that it can include. For example, a processing device may include a plurality of processors or a processor and a controller. Other processing configurations are also possible, such as parallel processors.

Software may include a computer program, code, instructions, or a combination of one or more of the foregoing, which configures a processing device to operate as desired or processes independently or collectively. The device can be commanded. Software and/or data may be any tangible machine, component, physical device, virtual equipment, computer storage medium or device, intended to be interpreted by or provide instructions or data to a processing device. , or may be permanently or temporarily embodied in a transmitted signal wave. Software may be distributed on networked computer systems and stored or executed in a distributed manner. Software and data may be stored on one or more computer readable 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 on a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program commands recorded on the medium may be specially designed and configured for the embodiment or may be known and usable to those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic media such as floptical disks. - includes hardware devices specially configured to store and execute program instructions, such as magneto-optical media, and ROM, RAM, flash memory, and the like. Examples of program instructions include high-level language codes that can be executed by a computer using an interpreter, as well as machine language codes such as those produced by a compiler. 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 limited examples and drawings, those skilled in the art can make various modifications and variations from the above description. For example, the described techniques may be performed in an order different from the method described, and/or components of the described system, structure, device, circuit, etc. may be combined or combined in a different form than the method described, or other components may be used. Or even if it is replaced or substituted by equivalents, appropriate results can be achieved.

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

Claims (2)

Receiving, by a first user terminal, an input for selecting one or more contents from among contents of sound sources, art, webtoons, and web novels managed by a contents management unit;
The first user terminal generates first content from the one or more contents using an installed application, further generates a first use right certificate of the first content, and transmits the first content to a content management server. To issue a certificate corresponding to the first use right certificate of the first content,
Determine 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 download count of each of the one or more contents, and determine whether or not each of the one or more contents is illegally distributed based on the illegal distribution. determining distribution possibility and generating the first content using the one or more contents when the distribution possibility of the one or more contents is true;
converting, by the first user terminal, the first content including the one or more content among the contents of a sound source, art, webtoon, and web novel into one first usage right document, if the distribution possibility is true; and
Uploading, by the first user terminal, the first certificate of right to use to a purchase page, and transmitting the first certificate of right to use to the second user terminal upon request from a second user terminal; A method of distributing the right to use digital content. Including a memory, a communication unit and a processor,
The processor reads computer readable instructions stored in the memory and receives an input for selecting one or more contents from among contents of sound sources, art, webtoons, and web novels managed by a content management unit,
Using an installed application, generate the one or more contents as first content, further generate a first usage right certificate of the first content, and transmit the first content to a content management server to create a first content of the first content. 1 Issue a certificate corresponding to the certificate of right to use,
Determine 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 download count of each of the one or more contents, and determine whether or not each of the one or more contents is illegally distributed based on the illegal distribution. determining the distribution possibility and generating the first content using the one or more contents when the distribution possibility of the one or more contents is true;
If the distribution possibility is true, converting the first content including one or more contents among the contents of a sound source, art, webtoon, and web novel into one first use right document;
A user terminal that uploads the first certificate of right to use to a purchase page, and controls transmission of the first certificate of right to use to the other user terminal upon request from another user terminal.

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