KR20100010262A - A method, system for preventing from illegal copy and computer-readable media storing program for realizing method thereof - Google Patents

Abstract

PURPOSE: A system for preventing from illegal copy and a computer readable media storing program for realizing method thereof are provided to prevent illegal copy by inserting identification data of the supplier of multimedia into the multimedia contents. CONSTITUTION: The contents database(14) stores the multimedia contents. The user data base(15) stores the user identification data of the service user. The contents storage unit(11) stores the multimedia contents in the contents database. According to the request of user, the contents providing unit(12) transmits the multimedia contents through network. The contents conversion unit(22) of the user terminal(20) inserts user identification data into the frame of the multimedia contents.

Description

A method, system for preventing from illegal copy and computer-readable media storing program for realizing method

The present invention relates to a method and system for protecting multimedia contents from illegal duplication, and to a computer readable recording medium recording such a program. The present invention relates to an invention intended to facilitate tracing and prevent piracy.

As data transmission between networks, which was limited to text or audio sources in the past, has recently improved the maximum transmission speed of communication networks such as the Internet, it is possible to transfer comprehensive video multimedia files such as movies or dramas. Content is also on the rise.

On the other hand, as the transmission of such high-definition video is possible, the protection of commercial contents is required more strongly, and various multimedia copy protection technologies have been proposed in response to such demands.

As an example of this technology, Korean Patent Application No. 10-2000-0060511 "Business method for providing video files for copy protection service, a device for implementing the same, and a computer-readable recording medium containing a program capable of implementing the same" (hereinafter, referred to as "preceding" Technology ').

The prior art obtains a predetermined authority by decrypting the provided multimedia content file by using an encryption key that the server performs encryption and the like, including the authority, and purchases it at a predetermined price. The playback method is used.

However, the method of encrypting the multimedia content file in the server and decrypting it in the user terminal has a lot of load on the server itself, so that the cost of the central management server is excessively expended. The process was inconvenient because it was complicated and time-consuming.

In addition, in recent years when various softwares are developed, such encryption methods are frequently released by users frequently, and after encryption is released at random, there is no means to prevent piracy. It was a problem because of losing.

Therefore, the present invention has been proposed in response to the need to simultaneously satisfy the requirement of preventing the illegal copying to be released and preventing excessive load on the central management server.

As to solve the above problems,

An object of the present invention is to convert the downloaded multimedia content to the original multimedia content through a simple operation while converting the downloaded multimedia content to identify the subject of the copy for preventing illegal copying while minimizing the load on the server providing the multimedia content. To provide a means to make it irreversible.

It is also an object of the present invention to provide a means for facilitating tracking of piracy through identification of a provider of multimedia in addition to the downloading user.

In order to achieve the above technical problem,

In the multimedia content providing system having a management server for receiving multimedia content from an OSP or a user and providing the multimedia content to a user terminal according to a user's request, which is divided into user identification data, the present invention provides a management server and a user terminal. Is made of.

The management server includes a content database, a user database, a content storing means and a content providing means, and the user terminal includes a content converting means.

The multimedia content is stored in the content database. In the user database, user identification data of a service user is stored. Content storage means stores the uploaded multimedia content in the content database. The content providing means transmits the multimedia content through the network at the request of the user.

The content converting means inserts the user identification data into the frame of the downloaded multimedia content.

In addition, the content database further stores identification data of a provider who provided the corresponding multimedia content, the content storing means stores the supplier identification data in the content database so as to correspond to the corresponding multimedia content, and the content providing means comprises: The provider identification data may be further transmitted to the user terminal together with the multimedia content, and the content converting means may further insert the provider identification data together with the user identification data into a frame of the multimedia content.

In addition, content identification data corresponding to multimedia content is further stored in the content database, and the content storage means stores the content identification data in the content database so as to correspond to the corresponding multimedia content, and the content providing means includes the multimedia content. In addition, the content identification data corresponding to the multimedia content is further transmitted to the user terminal, and the content converting means may further insert the content identification data together with the user identification data in a frame of the multimedia content.

Furthermore, the management server may further include a content conversion information database for storing multimedia conversion information inserted into multimedia content and conversion information storage means for storing multimedia conversion information returned from the user terminal in the content conversion information database. The content converting means may return multimedia conversion information including at least one of content identification data, provider identification data, and user identification data inserted into the multimedia content to the management server.

Multimedia content protection method according to the present invention in a multimedia content providing method comprising a management server for providing a multimedia content received from the OSP or a user to the user terminal according to the user's request divided into user identification data Consists of the following steps:

In the content database construction step, the multimedia content uploaded by the content storage means is converted into a database.

In the content providing step, the content providing means transmits the multimedia content through the network at the request of the user.

In the content conversion step, the content conversion means inserts the user identification data into the frame of the downloaded multimedia content.

Further, in the content database construction step, the content storing means may database the provider identification data together with the corresponding multimedia content, and in the content providing step, the content providing means may transfer the provider identification data to the user terminal together with the multimedia content. Further, in the content conversion step, the content conversion means may further insert the provider identification data together with the user identification data in the frame of the multimedia content.

Further, in the content database construction step, the content storing means may database the content identification data to correspond to the corresponding multimedia content, and in the content providing step, the content providing means may transfer the content identification data to the user terminal together with the multimedia content. Further, in the content conversion step, the content conversion means may further insert the content identification data together with the user identification data in the frame of the multimedia content.

Furthermore, the following steps may be further included after the content conversion step.

In the conversion information returning step, the content conversion means returns the multimedia conversion information including at least one of content identification data, provider identification data, and user identification data inserted into the multimedia content to the management server. In the conversion information database step, the conversion information storage means database the multimedia conversion information returned from the user terminal.

In the multimedia content providing system having a management server for receiving multimedia content from an OSP or a user and providing the multimedia content to a user terminal according to a user's request divided by user identification data, the multimedia content providing system according to the present invention can be read by a computer. The multimedia content protection program recorded on the recording medium having the management server functions as a content storage means and a content providing means, and the user terminal functions as a content conversion means.

The content storage means is a database of the uploaded multimedia content. The content providing means transmits the multimedia content through the network at the request of the user. The content converting means inserts the user identification data into the frame of the downloaded multimedia content.

In addition, the content storing means further stores the supplier identification data in the content database to correspond to the corresponding multimedia content, the content providing means further transmits the supplier identification data to the user terminal along with the multimedia content, the content conversion means The provider identification data may be further inserted into the frame of the multimedia content together with the user identification data.

The content storage means further stores the content identification data in the content database so as to correspond to the corresponding multimedia content, the content providing means further transmits content identification data together with the multimedia content to the user terminal, and the content conversion means The content identification data may be further inserted into the frame of the multimedia content together with the user identification data.

Furthermore, the program according to the present invention is a content that returns the user terminal to the management server multimedia conversion information including at least one of the content identification data, provider identification data and user identification data inserted into the multimedia content inserted into the multimedia content; The apparatus may further function as conversion means, and the management server may further function as conversion information storage means for databaseing multimedia conversion information returned from the user terminal.

From the structural features of the present invention described above,

The present invention can convert the downloaded multimedia content to identify the subject of the copy to prevent piracy while minimizing the load on the server providing the multimedia content, and the result of copy protection can be easily returned to the content before conversion by hackers, etc. It becomes impossible.

In addition, the present invention, by inserting the identification data of the provider of the multimedia in addition to the user to download into the multimedia content, even if the conversion for identification of the downloaded user is invalidated by a hacker or the like to prevent redistribution to be reproduced through the server again.

In addition, the present invention has the effect of psychologically suppressing illegal copying by facilitating the tracking of illegal copying as described above, and by allowing the download service users to easily recognize the copying.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. OSP used throughout this specification means an online-service provider.

Referring to FIG. 1, the present embodiment largely includes a management server 10, a user terminal 20, and an OSP server 30. Hereinafter, each embodiment will be described in detail. However, the OSP server 30 refers to a general provider of providing multimedia content, and thus detailed description thereof will be omitted.

<Example 1>

Embodiment 1 relates to a case of inserting user identification data into multimedia content.

The management server 10 will be described with reference to FIG. 1.

The management server 10 is composed of the content storage means 11, the content providing means 12, the content database 13 and the user database 14 again. However, the conversion information storage means 13 and the content conversion information database 15 are optional components and will be described in the third embodiment.

The content database 14 stores multimedia content uploaded from an OSP or an individual.

The user database 15 stores user identification data of a service user. In this case, the user identification data refers to data used for distinguishing a user ID or other users subscribed for a service for downloading multimedia contents.

The content storage means 11 stores multimedia content uploaded from an OSP or an individual in a content database, and generates and stores identification data corresponding to the content.

The content providing means 12 transmits the multimedia content to each user terminal that requested the corresponding multimedia content through the network in response to a user's request.

Meanwhile, the user terminal 20 refers to all digital devices that can be connected to a network such as a computer, a laptop, a PDA, and a mobile phone used by a user to download corresponding multimedia contents. The download means 21 and the content converting means ( 22).

The download means 21 is a form of a program executed in a user terminal by downloading and installing a specific program from the above-described management server 10 or installing a distribution type program. One example is this. This is well known and detailed description is omitted.

The content converting means 22 is installed and executed as software of the same type as the downloading means 21 described above. The content converting means 22 inserts the user identification data into a frame of the multimedia content downloaded by the downloading means 21. As a result of the operation, when the converted multimedia content is executed, user identification data appears on a part of the screen. In this case, it is preferable to prevent the hacker and the like from simply removing the user identification data by inserting the user identification data into each frame generally, rather than temporarily displaying the subtitles using a layer or the like.

Meanwhile, the user identification data may be inserted over all frames or only some frames.

Hereinafter, the process according to Example 1 will be described with reference to FIG. 2.

First, the content storing means 11 stores the uploaded multimedia content in the above-described content database. (S10) Next, when the user requests to download the specific multimedia content (S20), the content providing means as described above. (12) The multimedia content is transmitted to the user terminal 20 requesting the corresponding multimedia content through the network (S30).

When the corresponding content is downloaded from the user terminal 20, the content converting means 22 inserts user identification data such as an ID of the corresponding user into the frame of the downloaded multimedia content as described above (S40).

On the other hand, the step of downloading the above-mentioned multimedia content (S30) and the conversion step (S40) of inserting the user ID, etc. into the multimedia content is only divided to explain the process clearly, so that the download and conversion work in real time is continuous It is preferable that it consists of.

The multimedia content file after conversion is converted into a form in which user identification data is permanently inserted. Therefore, even if the user executes the multimedia file as well as the illegal copy, the identification data of the first downloaded user executes the multimedia content. In this case, since the screen is exposed as it is, it is easy to track and the psychological pressure is applied to prevent illegal copying to the user.

<Example 2>

Embodiment 2 together with Embodiment 1 provides a dual anti-piracy means. That is, Embodiment 2 relates to a case in which provider identification data is inserted into multimedia content together with user identification data. In the second embodiment, the content database 14, the content storage means 11, the content providing means 12, and the content conversion means 22 have additional functions as compared to the first embodiment. Hereinafter, the present invention will be described in detail with reference to FIG. 1.

The content database 14 further stores identification data of a provider who provided the multimedia content in addition to the above-described multimedia content.

On the other hand, the content storage means 11 stores the supplier identification data supplied with the multimedia content in the content database to correspond to the multimedia content.

The content providing means 12 further transmits the provider identification data to the user terminal along with the multimedia content when the user downloads a specific content.

Finally, the content converting means 22 of the user terminal 20 further inserts the provider identification data together with the user identification data in the frame of the user multimedia content.

Hereinafter, the process according to Example 2 will be described with reference to FIG. 3.

The process of Embodiment 2 is different in that it processes additional data compared to Embodiment 1 described above. In other words, the process sequence itself is the same, but each step processes additional data.

That is, in the case of content database, the supplier identification data is additionally added (S15), and when the requested multimedia content is transmitted to the user terminal after the download request, the above provider identification number is further transmitted (S35). In addition, the user identification data is inserted into the multimedia content and the provider identification data is additionally inserted (S45).

That is, in the second embodiment, even if the uploaded multimedia content itself is an illegal copy or the user deletes his identification data hardly and then uploads it, the identification data as the supplier is inserted again, so that the second embodiment functions as a double anti-piracy means together with the first embodiment. will be.

<Example 3>

Embodiment 3 relates to a case where content identification data is inserted into multimedia content together with user identification data.

The content database 14 further stores content identification data corresponding to the multimedia content in order to distinguish each multimedia content. At this time, the content identification data is a hash value, which plays a role of enabling tracking through search and the like when the multimedia content is shared on the web.

In addition to the above-mentioned multimedia content, the content database 14 further stores a unique identification number of the corresponding multimedia content, that is, content identification data.

Meanwhile, the content storing means 11 stores the multimedia content identification data in the content database so as to correspond to the multimedia content.

The content providing unit 12 transmits the content identification data together with the multimedia content to the user terminal when the user downloads a specific content.

Finally, the content conversion means 22 of the user terminal 20 further inserts content identification data together with the user identification data in a frame of the user multimedia content.

Hereinafter, the process according to the third embodiment will be described with reference to FIG. 5.

The process of the third embodiment is the same as the first embodiment, and the process sequence itself is the same as the second embodiment, but additional data is processed in each step.

That is, when the content database is added, content identification data is additionally added (S16), and when the requested multimedia content is transmitted to the user terminal after the download request, the above content identification number is further transmitted (S36). In addition, the user identification data is inserted into the multimedia content and the content identification data is additionally inserted (S45).

In other words, in the third embodiment, even if the uploaded multimedia content itself is an illegal copy or a user deletes his or her identification data and deletes it, the hash value is inserted into the multimedia content itself. In other words, it will be able to be recognized by the general users, which will serve as an additional anti-piracy means.

Meanwhile, Embodiment 2 and Embodiment 3 described above may be simultaneously implemented. That is, user identification data, supplier identification data, and content identification data may be inserted together in the multimedia content.

<Example 4>

The fourth embodiment has a difference in that the converted information of the multimedia content is converted into a database so that it can be used later for illegal copying, etc. after the conversion of the content is finished, that is, after the processes of the first embodiment are finished. The same applies to the case of Example 2 and Example 3 as well as Example 1.

This will be described in detail with reference to FIG. 1.

In Embodiment 4, the management server 10 is additionally provided with a content conversion information database 16 and conversion information storage means 13.

The content conversion information database 16 stores multimedia conversion information embedded in multimedia content. In this case, the conversion information may be the type, content, date and time of identification data such as inserted content identification data, supplier identification data and user identification data. This conversion information is later used for tracking down piracy.

The conversion information storage means 13 stores the multimedia conversion information returned from the user terminal in the above-described content conversion information database.

Meanwhile, the content conversion means 22 of the user terminal 20 returns the above-described conversion information such as the type and content of the conversion job to the management server 10 after the content conversion job.

Hereinafter, the process according to the fourth embodiment will be described with reference to FIG. 5.

In the case of the fourth embodiment is the same as the first embodiment until the step S40, but there is a difference in that additional work. On the other hand, up to step S40 may be replaced by a mixed type of Example 2, Example 3 or Example 2 and Example 3.

After the content conversion (S40) is finished, the content conversion means returns the multimedia conversion information to the management server 10 as described above, the multimedia conversion that the conversion information storage means 13 of the management server 10 is returned from the user terminal It receives the information and databases it.

While the preferred embodiments of the present invention have been described above, the technical idea of the present invention is not limited to the above-described preferred embodiments, and various multimedia content protection methods in a range not departing from the technical idea of the present invention specified in the claims. The present invention may be implemented as a computer-readable recording medium recording a system and a program thereof.

1 is a block diagram showing the overall configuration of the present invention.

2 is a flowchart showing the process of Embodiment 1 of the present invention.

3 is a flowchart showing a process of Embodiment 2 of the present invention.

4 is a flowchart showing a process of Embodiment 3 of the present invention.

5 is a flowchart showing a process of Embodiment 4 of the present invention.

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

11: content storage means 12: content providing means

13: Conversion information storage means 14: Content database

15: User database 16: Content conversion information database

21: Download means 22: Content conversion means

30: on-line service provider (OSP) server

Claims (12)

In the multimedia content providing system comprising a management server for receiving multimedia content from an OSP or a user and providing the multimedia content to a user terminal according to a user's request, The management server, A content database in which multimedia content is stored; A user database in which user identification data of a service user is stored; Content storage means for storing the uploaded multimedia content in the content database; And Content providing means for transmitting the multimedia content through the network in response to a user's request, and The user terminal, And a content conversion means for inserting the user identification data into a frame of the downloaded multimedia content. The method of claim 1, The content database further stores identification data of a provider who provided the corresponding multimedia content. The content storage means stores the provider identification data in the content database to correspond to the corresponding multimedia content, The content providing means further transmits the provider identification data to the user terminal together with the multimedia content, And the content converting means further inserts the provider identification data together with the user identification data into a frame of the multimedia content. The method of claim 1, The content database further stores content identification data corresponding to the multimedia content. The content storage means stores the content identification data in the content database to correspond to the corresponding multimedia content, The content providing means further transmits the content identification data corresponding to the multimedia content to the user terminal together with the multimedia content, And the content conversion means further inserts the content identification data together with the user identification data into a frame of the multimedia content. The method according to any one of claims 1 to 3, The management server, A content conversion information database storing multimedia conversion information inserted into the multimedia content; And Conversion information storage means for storing the multimedia conversion information returned from the user terminal in the content conversion information database, further comprising: And the content conversion means returns the multimedia conversion information including at least one of content identification data, supplier identification data, and user identification data inserted into the multimedia content to the management server. Claims [1] A multimedia content providing method comprising a management server for receiving multimedia content from an OSP or a user and providing the multimedia content to a user terminal according to a user's request. A content database construction step of databaseting the multimedia content uploaded by the content storage means; A content providing step of transmitting, by the content providing means, the multimedia content through the network at the request of the user; And a content conversion step of inserting the user identification data into a frame of the multimedia content downloaded by the content conversion means. The method of claim 5, In the content database construction step, the content storage means to database the supplier identification data to correspond to the corresponding multimedia content, In the content providing step, the content providing means further transmits the provider identification data to the user terminal together with the multimedia content, In the content conversion step, the content conversion means further inserts the provider identification data with the user identification data in the frame of the multimedia content. The method of claim 5, In the content database construction step, the content storage means to database the content identification data to correspond to the corresponding multimedia content, In the content providing step, the content providing means further transmits content identification data to the user terminal together with the multimedia content, In the content conversion step, the content conversion means further inserts the content identification data with the user identification data in the frame of the multimedia content. The method according to any one of claims 5 to 7, After the content conversion step, A conversion information returning step of the content conversion means returning, to the management server, multimedia conversion information including at least one of content identification data, provider identification data, and user identification data inserted into the multimedia content; And And a conversion information database step of converting, by the conversion information storage means, the multimedia conversion information returned from the user terminal into a database. In the multimedia content providing system comprising a management server for receiving multimedia content from an OSP or a user and providing the multimedia content to a user terminal according to a user's request, The management server, Content storage means for database uploading the multimedia content; Content providing means for transmitting multimedia content through a network according to a user's request: The user terminal, Content conversion means for inserting the user identification data into the frame of the downloaded multimedia content: A computer-readable recording medium recording a multimedia content protection program to function as. The method of claim 9, The content storage means further stores the provider identification data in the content database to correspond to the corresponding multimedia content, The content providing means further transmits the provider identification data to the user terminal with the multimedia content, And the content converting means is a computer readable recording medium storing a multimedia content protection program for inserting the provider identification data together with the user identification data into a frame of the multimedia content. The method of claim 9, The content storage means further stores the content identification data in the content database to correspond to the corresponding multimedia content, The content providing means further transmits content identification data to the user terminal together with the multimedia content, And the content converting means is a computer readable recording medium having recorded therein a multimedia contents protection program for inserting the contents identification data together with the user identification data in a frame of the multimedia contents. The method according to any one of claims 9 to 11, The user terminal, Content conversion means for returning the multimedia conversion information including at least one or more of the content identification data, the provider identification data and the user identification data inserted into the multimedia content to the management server: The management server, A computer-readable recording medium having recorded thereon a multimedia content protection program that further functions as a conversion information storage means for databaseting multimedia conversion information returned from a user terminal.

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