KR20090062437A - Method and system for preventing to copy illegality contents - Google Patents

Abstract

A content illegal copy prevention method and a system thereof for protecting the copyright of a contents manufacture company by using an area code are provided to allow the apparatus and the heat storage media including the second area code coinciding with the first area code to be duplicated. Contents including a first area code is inputted from a server(301, 302). In case that a copy request about the inputted contents to the copy storage medium is generated, the second area code is received from the counterpart storage media(303). The first area code and received second area code are compared(304). If the first and second area code are matched from each other, the contents is duplicated to the counterpart storage media(305).

Description

Content piracy prevention method and content piracy prevention system {METHOD AND SYSTEM FOR PREVENTING TO COPY ILLEGALITY CONTENTS}

The present invention relates to a content piracy prevention method and a content piracy prevention system for preventing illegal copying of contents transmitted through a network.

The invention of Information and Communication and Information and Communications Technology Agency will be derived from IT research carried out as part of a new growth engine core technology development program of project management number: 2007-S-003-01, Project title: Terrestrial DTV Program Protection Technology Development] .

Recently, content such as drama has gained much popularity not only in Korea but also abroad. Such content is an intangible property, and is an important asset for the producer of the above-mentioned content. However, because of the high popularity of the above-mentioned content, it is illegally distributed and stored in a copy storage medium such as a CD or a DVD abroad. Therefore, the side which produced the above-mentioned content has suffered enormous damage by the illegally distributed content.

As a result, the producer and distributor of the content needs a method and a system for preventing the content from being illegally copied.

SUMMARY OF THE INVENTION The present invention has been made to improve the prior art as described above, and transmits a first region code including a region information, etc., in which a content can be copied in a data stream, through a network mainly based on a broadcasting network, and transmits the first region code. Providing a method for preventing content piracy and a system for preventing illegal copying of content by allowing the extraction of a region code, copying to a device and a copy storage medium including a second region code matching the first region code when the content is copied; The purpose.

In addition, an object of the present invention is to provide a content piracy prevention method and a content piracy prevention system that can protect the copyright of the company that produced the content.

In order to achieve the above object, a method for preventing illegal copying of a content includes receiving a content including a first region code from a server, and when a copy request for the input content to a copy storage medium occurs, a second copy from the copy storage medium. Receiving an area code, comparing the first area code with the received second area code, and if the first and second area codes match, allowing copying of the content to the copy storage medium; Characterized in that.

In addition, as a technical configuration of the present invention for achieving the above object, the content piracy prevention system receives the content containing the first region code from the server, the copy request for the input content to the copy storage medium occurs When the interface means for receiving the second area code from the copy storage medium, the area code comparison means for comparing the first area code and the received second area code, and when the comparison result, the first and second area codes, And content copying permitting means for copying content to the copy storage medium.

According to the present invention, a first area code including area information that can be copied in a data stream is transmitted through a network mainly based on a broadcasting network, and a first area code is extracted by a receiving device to reproduce the content. A method for preventing illegal copying of content and a system for preventing illegal copying of content, which allow copying to a device and a copy storage medium including a second area code matching the first area code, can be provided.

In addition, according to the present invention, it is possible to provide a content piracy prevention method and a content piracy prevention system that can protect the copyright of the company that produced the content.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the content piracy prevention method and content piracy prevention system according to the present invention.

Copies storage medium, which is often referred to herein, may mean a storage medium including CD, DVD, and HD-DVD as a medium capable of storing content.

1 is an example of the configuration of the content piracy prevention system of the present inventors.

Referring to FIG. 1, the content piracy prevention system 100 includes an interface between the content receiving means 111, the first region code generating means 112, the combining means 113, and the terminal 120 of the server 110. Means 121, the area code comparison means 122, the content copying means 123 and warning message generating means 124.

The content receiving unit 111 performs a function of receiving the content requested to be transmitted from the content provider 130. The content receiving means 111 may receive the above-described content from the content provider 130 so that the content can be transmitted from the server 110 to the terminal 120. Here, the server 110 is an apparatus capable of transmitting content, and may mean a broadcasting station transmitting apparatus. In addition, the terminal 120 may receive content and store the above-described content in a copy storage medium, and may mean a device having a TV and a DVD player function.

The first region code generating means 112 performs a function of generating a first region code associated with the received content. At this time, the first area code generation unit 112 generates the first area code in consideration of the copy permission area of the content.

This is because at least one of the first region code for the copy permission region of the content and the code (second region code) for the region of the copy storage medium must match. For example, if the copy allowed area is the first area code confined to Korea, then the code for the area of the copy allowed medium must also include Korea.

The combining means 113 performs a function including the first area code generated in the content. The combining means 113 may provide an environment in which the content is stored and copied only to the copy storage medium having the code for the same region.

The interface unit 121 performs a function of receiving the content including the first region code from the server 110. In addition, the interface unit 121 may directly receive information on the first region code through the server 110.

The interface unit 121 may perform a function of receiving a second area code of the copy storage medium or the terminal 120 when a copy request for the received content occurs.

In the terminal 120, the interface unit 121 performs a function of receiving the content including the first region code from the server 110 through at least one of an over-the-air broadcasting network, a DMB broadcasting network, a satellite broadcasting network, and an internet communication network. In addition, when a copy request for the above-described content input to the copy storage medium occurs, a function of receiving a second area code from the copy storage medium or the terminal (device) is performed.

The area code comparison means 122 performs a function of comparing the first area code with the received second area code.

Figure 2 is a block diagram of the area code comparison means of the inventors content piracy prevention system.

Referring to FIG. 2, the area code comparison means 122 includes an extraction means 201 and an application confirmation means 202.

The extraction means 201 of the area code comparison means 122 performs a function of extracting the first area code from the content. The application means checking unit 202 of the area code comparison means 122 performs a function of checking whether the extracted first area code is activated. That is, the application check unit 202 determines whether the first area code is in an activated state or inactive state. Further, the extraction means 201 extracts the first region code from the content even when the first region code includes a plurality of unit region codes. The area code comparison means 122 compares the first area code with the second area code when the first area code is activated as a result of the checking.

The content copy allowing means 123 performs a function of allowing the content copy to the copy storage medium when the first and second region codes match as a result of the comparison. For example, when the first region code is limited to Korea, and the second region code of the copy storage medium also includes Korea, the content copy allowing means 123 allows the content to be copied to the copy storage medium.

In addition, the content copy allowance means 123 stores a copy when the first region code includes a plurality of unit region codes, and matches any unit region code of the extracted unit region code and the second region code. Function to allow copying of content to media. For example, if the first region code is limited to Korea, the United States, and Japan, and the second region code of the copy storage medium is Korea, the second region code matches Korea, which is the unit region code of the first region code. Acceptance means 123 allows the content to be copied to the copy storage medium.

In addition, the content copy allowance means 123 stores a copy when an arbitrary unit area code among the extracted first area code and the unit area code in the second area code is matched when the second area code includes a plurality of unit area codes. Function to allow copying of content to media.

The warning message generating means 124 performs a function of generating a warning message for not allowing copying when the first and second region codes do not match as a result of the comparison. That is, if the first and second region codes do not match, the warning message generating means 124 illegally determines that the contents are copied to the copy storage medium, and generates a warning message for this.

Hereinafter, an embodiment of the inventors' content piracy prevention system will be described.

If the network is a broadcast network, the first region code of the content is generated using the RC Descriptor of ATSC. ATSC is the name of a committee originally established by TV broadcasters and consumer electronics companies in the past 83 in order to establish advanced TV standards in the United States. Adopted means digital TV in the United States. The key elements of this standard are the compression and transmission of video and audio. The video signal is compressed by MPEG2 and the audio and audio signal is compressed by AC-3. The transmission technology that carries these signals uses VSB (Vestigial Side Band) technology. do.

ATSC's RC Descriptor is a table for transmitting information to prevent redistribution of terrestrial broadcasting content.

TABLE 1

Table 1 shows an example of generating the first region code of the content using the RC Descriptor of ATSC.

In the above-described Table 1, 'progrma_geographic_flag' is a bit indicating whether to use the first region code of the content. Bits 0 or 1 may be used to indicate whether to use local restrictions.

'program_geographic_code' is an example of a representation of area information and may indicate a first area code using 16 bits. For example, in the case of Korea, this value may be entered by entering 'program_geographic_code' = 'kr'. Alternatively, in the case of a type of copy storage medium such as a DVD, it may be expressed by inputting 'program_geographic_code' = 5. It is possible to express domestic / international simply by using 1 bit.

The above-described 'progrma_geographic_flag' and 'program_geographic_code' may be used together in one first region code, and only one of the two may be used.

The first region code included in the content may be used together with content format transformation control information or output control information.

TABLE 2

Table 2 shows an example of generating a first region code of a plurality of contents using the RC Descriptor of ATSC.

The content receiving means 111 of the broadcasting station transmitting device receives the drama 'Drama A', which is a content requested to be transmitted, from the content provider 130.

The first region code generating unit 112 of the broadcasting station transmitting apparatus generates a first region code associated with the drama 'Drama A'. At this time, the first region code generating unit 112 limits the above-described first region code to Korea.

The combining means 113 of the broadcasting station transmitting device includes the first region code generated in the drama 'Drama A'.

The interface unit 121 of the DVD player for combining TV functions receives 'drama A', which is a content including the first region code, from a broadcasting station transmitting device, and a copy request for the input content to the DVD, which is a copy storage medium, is generated. The second area code is received from the copy storage medium.

The extraction means 201 of the area code comparison means 122 for the DVD player for combining TV functions extracts the first area code from the content. The application means for confirming whether the region code comparison means 122 is applied to the DVD player for combining the TV function confirms the activation state of the extracted first region code. The application check unit 202 confirms whether the extracted first region code is set to be activated. For example, if a specific bit of the first area code is 0, the applicability checking means 202 determines that the first area code is activated. If the specific bit of the first area code is 1, the applicability checking means 202 is applied. Determines that the first region code is deactivated. The area code comparison means 122 compares the first area code with the second area code when the first area code is activated as a result of the checking.

The content copying permission means 123 of the DVD player for combining TV functions allows the content to be copied to the copy storage medium when the first area code is limited to Korea and the second area code is also limited to Korea. On the other hand, the content copy permission means 123 does not allow the content to be copied to the copy storage medium when the first area code is limited to Korea and the second area code is limited to the US.

The warning message generating means 124 of the DVD player for combining TV functions is a warning message that does not allow the content to be copied to the copy storage medium when the first and second region codes do not match. Is considered illegal. '

Therefore, according to the present invention, it is possible to provide a content piracy prevention system that prevents illegal copying of content transmitted via a network.

3 is a flowchart illustrating a method for preventing content piracy of the present invention.

In step 301, the combining means comprises a first area code generated by the first area code generation means in the content received by the content receiving means from the content provider. This step is a process of including the first region code for preventing illegal copying in the content transmitted from the broadcasting transmission device that is part of the content piracy prevention system.

Step 301 may include generating a first region code in consideration of the copy permission region of the content.

In step 302, the interface means receives the content including the first area code. This step is a process of receiving a content including a first region code transmitted from a broadcasting transmission device in a terminal which is a part of a content piracy prevention system. In this case, the interface means receives the content including the first region code from at least one of a broadcasting network, a DMB broadcasting network, a satellite broadcasting network, and an internet communication network.

In step 303, the interface means receives a second area code from the copy storage medium when a copy request for the input content to the copy storage medium occurs. This step is a process of receiving a second area code from the copy storage medium in order to copy the content input from the terminal which is part of the content piracy prevention system to be compared with the first area code.

In step 304, the area code comparison means compares the first area code with the received second area code. This step is a process of comparing the first area code and the second area code in order to determine whether the terminal, which is a part of the content piracy prevention system, is appropriate for the above-described copy request. Step 304 may include extracting, by the extracting means of the area code comparing means, a first area code from the contents, and confirming whether or not the application means confirms activation of the extracted first area code. The area code comparison means compares the first area code with the second area code when the first area code is activated.

If the first area code includes a plurality of unit area codes, step 304 may include extracting a first area code from the content and comparing the first area code with the second area code.

In step 305, if the first and second area codes match as a result of the comparison, copying of content to the copy storage medium is allowed. This step is a process of allowing content copying when the first and second area codes are matched after comparing the first and second area codes in a terminal which is a part of the content piracy prevention system.

Step 305 may include a step of generating a warning message when the first and second area codes do not match after comparing the first and second area codes in a terminal which is a part of the content piracy prevention system.

Therefore, according to the present invention, it is possible to provide a content illegal copy prevention method for preventing illegal copying of content transmitted through a network.

4 is a conceptual diagram of a content piracy prevention system of the present inventors.

The content piracy prevention system 400 transmits the content 405 including the first region code generated by the broadcast transmission device 401 to the terminal 402. When the content 405 is copied 403 to the copy storage medium 404 in the terminal 402 that stores the above-described content 405, the content piracy prevention system 400 stores the first region code and the copy. Comparing the second area code of the medium 404 allows copying if a match is found and copying if no match is allowed.

On the other hand, the copy storage medium 404 to which the content 405 has been copied must be played in a terminal (for example, a DVD player) having a code for the same region. In other words, the terminal (eg DVD player) must also have a code that defines the region. This is because a case of storing contents having a region code limited to Korea and copying from a foreign country with a copy storage medium having a region code limited to Korea occurs.

According to the present invention, it is possible to prevent illegal copying of content transmitted through a network.

In addition, according to the present invention, it is possible to protect the copyright of the company that produced the content.

In addition, embodiments of the present invention include computer-readable media containing program instructions for performing various computer-implemented operations. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. The medium or program instructions may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.

While specific embodiments of the present invention have been described so far, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the claims below, but also by those equivalent to the claims.

1 is a block diagram of a content piracy prevention system of the present inventors.

Figure 2 is a block diagram of the area code comparison means of the inventors content piracy prevention system.

3 is a flowchart illustrating a method for preventing content piracy of the present invention.

4 is a conceptual diagram of a content piracy prevention system of the present inventors.

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

100: content piracy prevention system

111: content receiving means

112: first region code generation means

113: coupling means

121: interface means

122: area code comparison means

123: means of copying content

124: means for generating a warning message

Claims (15)

Receiving content including a first region code from a server; Receiving a second area code from the copy storage medium when a copy request for the input content to the copy storage medium occurs; Comparing the first area code with the received second area code; And Allowing copying of the content to the copy storage medium when the first and second region codes match as a result of the comparison. Content piracy prevention method in a terminal comprising a. The method of claim 1, The comparing step, Extracting the first area code from the content; Confirming whether the extracted first region code is activated; And Comparing the first area code with the second area code when activated as a result of the checking; Content piracy prevention method in a terminal comprising a. The method of claim 1, When the first area code includes a plurality of unit area codes, Extracting the first area code from the content; And Allowing copying of the content to the copy storage medium when the unit area code of the extracted first area code matches the second area code and the second area code; Content piracy prevention method in the terminal characterized in that it further comprises. The method of claim 1, The step of receiving the content containing the first region code from the server, Receiving content including the first region code from the server through at least one of an over-the-air broadcasting network, a DMB broadcasting network, a satellite broadcasting network, and an internet communication network; Content piracy prevention method in a terminal comprising a. The method of claim 1, As a result of the comparison, if the first and second region codes do not match, generating a warning message for not allowing copying. Content piracy prevention method in the terminal characterized in that it further comprises. Receiving the requested content from the content provider; Generating a first area code associated with the received content; And Including the generated first region code in the content Content piracy prevention method in the server comprising a. The method of claim 6, The step of generating a first area code, Generating the first region code in consideration of a copy permission region of the content; Content piracy prevention method in the server comprising a. The method of claim 6, The step of generating a first area code, Generating the first region code by using an RC descriptor of ATSC Content piracy prevention method in the server comprising a. Interface means for receiving a content including a first area code from a server and receiving a second area code from the copy storage medium when a copy request for the input content to a copy storage medium occurs; Area code comparison means for comparing the first area code with the received second area code; And Content copy allowing means for allowing the content copy to the copy storage medium when the first and second area codes match as a result of the comparison; Content piracy prevention system in the terminal comprising a. The method of claim 9, The area code comparison means, Extraction means for extracting the first region code from the content; And Applicability checking means for confirming whether to activate the extracted first region code Including, When activated as a result of the check, the content piracy prevention system of the terminal, characterized in that for comparing the first area code and the second area code. The method of claim 9, When the first area code includes a plurality of unit area codes, Extraction means for extracting the first region code from the content More, The content copying means, And copying the content to the copy storage medium when the random unit area code of the extracted unit area code and the second area code in the extracted first area code are matched. The method of claim 9, As a result of the comparison, if the first and second region codes do not match, a warning message generating means for generating a warning message for not allowing copying. Content piracy prevention system in the terminal characterized in that it further comprises. Content receiving means for receiving the content requested to be sent from the content provider; First area code generation means for generating a first area code associated with the received content; And Combining means comprising the generated first region code in the content Content piracy prevention system in the server comprising a. The method of claim 13, The first area code generating means, And generating the first region code in consideration of the copy permission region of the content. The method of claim 13, The first area code generating means, And generating the first region code by using an RC descriptor of ATSC.

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