KR20030006687A - System and method for protecting and managing copyright of audio contents - Google Patents

Abstract

PURPOSE: A system and a method for protecting and managing a CONSTITUTION: A music contents distribution server(100) manages the

Description

System and method for copyright protection and management of music contents {SYSTEM AND METHOD FOR PROTECTING AND MANAGING COPYRIGHT OF AUDIO CONTENTS}

The present invention relates to a system and method for copyright protection and management of music content. More particularly, the present invention relates to a method for receiving music content used as an accompaniment in a karaoke room from a music content distribution server to each karaoke server through the Internet. The present invention relates to a system and a method for ensuring copyright protection and management, prevention of illegal copying, and transparency of billing processing.

In general, a karaoke device is a device in which a user selects songs recorded in a memory and sings song lyrics appearing on the screen in accompaniment. In order to store numerous music contents, a large karaoke song memory is required. However, in order to update new music contents, there is an inconvenience of exchanging a memory in which new songs are recorded from a music content provider.

In order to solve this problem, methods for updating content by downloading new music contents and storing them in a memory through a content supply website through the Internet or the like have been proposed.

However, as the copyright issue of music contents has recently been raised, a series of problems have arisen in the music contents for karaoke, such as the suspension of supply of new songs due to the copyright issue of contents between karaoke companies and the music copyright association. Therefore, even if a new music content is downloaded and updated using the Internet, the copyright-related part has been troublesome to solve the problem through a copyright management organization such as a copyright association.

In addition, the copyright holder of the music contents does not receive the right to use the copyright properly due to the hassle of the above procedure even though the music contents owned by the music contents are used for the karaoke.

The present invention is to solve the above problems, an object of the present invention is to establish a distribution system of music content guaranteed transparency of the billing processing and distribution of copyright fees through copyright protection and management of music content for karaoke will be.

Another object of the present invention is to prevent illegal copying and distribution of music contents by an encryption method using characteristics of a system unique to a user.

Another object of the present invention is to additionally enable digital watermarking technology to track the copyright holder of music content.

Another object of the present invention is to ensure the efficiency and transparency of billing processing and taxation by using access reporting, and to grasp the taste and preference of songs used by karaoke users in real time.

1 is a block diagram showing a schematic configuration of a copyright protection and management system for music contents according to a preferred embodiment of the present invention.

FIG. 2 is a block diagram illustrating a detailed configuration of a music content distribution server of FIG. 1.

3 is a flowchart illustrating a process of inserting copyright information into a music content and storing it in a database according to a preferred embodiment of the present invention.

4 is a flowchart illustrating a user registration and user unique key generation process according to a preferred embodiment of the present invention.

5 is a block diagram illustrating a detailed configuration of a copyright and music file management unit of FIG. 2.

6 is a flowchart illustrating a process of encrypting and transmitting a music file requested from a user to a user according to a preferred embodiment of the present invention.

FIG. 7 is a block diagram illustrating a detailed configuration of the karaoke server of FIG. 1.

8 is a flowchart illustrating a process in which a music file transmitted from a music content distribution server is decoded and reproduced in a karaoke half-cycle on the user side according to a preferred embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: copyright protection and management system 100: music content distribution server

110: register 120: copyright information DB

130: sound source DB140: copyright information insertion unit

150: file encoding unit 160: music file DB

170: file transfer unit 200: copyright and music file management unit

210: key management unit 220: binding unit

230: rule management unit 232: rule DB

240: user unique key DB300: Internet network

400: Karaoke server 410: Music DB

420: access control and management unit 422: file receiving unit

424: switching hub 426: memory

428: file decoding unit 430: file decoding unit

432: watermark detection unit 500: billing payment unit

600: Karaoke half cycle

In order to achieve the above object, the present invention provides a music content distribution server that manages the copyright of music content and provides music content at the request of a user; And a plurality of karaoke servers connected to a music content distribution server via a network and receiving music content from the music content distribution server, the method for copyright protection and management of music content, the method comprising: a Retrieving a requested music file stored in a music file database in a music content distribution server according to a request of a user's music file on the karaoke server side; b) combining and encrypting the retrieved music file using the user's unique key of the requesting user, the file encryption key of the music file, and a rule packet relating to the user's use; c) transmitting the combined and encrypted music files to a karaoke server; d) decrypting the transmitted music file in the karaoke server; And e) playing the selected song through the karaoke half-cycle connected to the karaoke server with the decrypted music file.

Here, the music file in step a) is a copyright information signal of the music file is inserted as a digital watermark prior to the request of the music file from the user, and step e) is inserted in the transferred music file. It is preferable to include the step of detecting the original watermark by detecting the watermark.

In addition, the user unique key in step b) is used to execute the user application downloaded from the music content distribution server when the user accesses the music content distribution server and inputs user information prior to the request of the music file from the user. Accordingly, it is preferable that the information is generated based on system information indicating system specific characteristics of the user terminal and stored in the music content distribution server.

In addition, the system information may include at least one of a unique ID of a processor, a hard disk manufacturer information, and a network card ID, which are unique information that can distinguish the system from other systems.

Also, the step b) may include b-1) encrypting a music file with a file encryption key; And b-2) encrypting a file decryption key capable of decrypting the encrypted music file with a user unique key, wherein c) transmits the encrypted file decryption key to the karaoke server in addition to the encrypted music file. It is preferred to include the step.

Also, the step d) may include d-1) decrypting an encrypted file decryption key transmitted as a user unique key generated by checking a user's system; And d-2) decrypting the encrypted music file using the decrypted file decryption key.

In addition, the rule packet preferably includes one or more of copy control information, maximum copy number, intellectual property information, and music ID.

In addition, after the step e), f) the access reporting step of transmitting in real time the information, such as information on what kind of music in the step e) from the karaoke server to the music content distribution server, and the result of the access reporting Is preferably used as a reference for distributing the copyright fee according to the reproduction of the music to the author of the music content.

Before describing a preferred embodiment of the present invention, the element technology used in the present invention will be described.

First of all, DRM (Digital Rights Management) is a copyright management and protection technology. DRM is a technology and service that protects digital contents distributed through various channels from illegal use by using encryption technology and continuously protects and manages the interests of copyright related parties resulting from the use of protected digital contents. .

DRM encrypts the content so that it cannot be used unless the specified conditions are met, and each user who uses the file can only use it if the user meets a predetermined condition so that the digital contents can be managed completely. Technology. Such DRM technology is described in detail in Korean Patent Application No. 2001-23562, filed April 30, 2001 by the present applicant, entitled "Method and System for Protecting and Managing Digital Content". It is disclosed, and the present invention is based on the present invention, which will be incorporated herein by reference.

Next, there is a digital watermarking technology for inserting copyright information into digital content. Digital watermarking is a technology that inserts specific data, such as copyright information, into a multimedia content such as audio, video, image, and text that cannot be distinguished by human eyes or hearing. If it is necessary to identify the original owner, such as a dispute, it is a technology that provides the basis for extracting and exercising the rights of ownership and copyright. As such, the data hidden in the original of the specific content so that the original can be confirmed is called a watermark.

Such digital watermarking technology uses a pseudo random number issuance function or the like to generate a watermark pattern and insert it, or a digital image itself such as a user's own signature or a company logo as a watermark. There is a logo method to insert.

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

1 is a block diagram showing a schematic configuration of a copyright protection and management system 10 of music contents according to a preferred embodiment of the present invention.

Referring to FIG. 1, the copyright protection and management system 10 of the present invention is a music content distribution server 100 and a music content distribution server 100 that manage copyright of music content and provide copyrighted music content. A plurality of billing settlement units (billing server), music content distribution server 100, and internet network 300, which provide billing processing for performing a billing process such as copyright fees according to the provision of music content Karaoke servers 400, and a plurality of half-cycles 600 connected to each karaoke server 400.

The music content distribution server 100 may be, for example, a server of a copyright association that serves to protect the copyright of the music author and to distribute the copyright fee from the karaoke to the music author. The detailed configuration of the music content distribution server 100 will be described later with reference to FIGS. 2 and 5.

The billing payment unit 500 charges according to the respective details when the music content is downloaded from the music content distribution server 100 to the karaoke server 400 through the Internet network 300 or when a predetermined condition is satisfied. Manage and proceed with the part related to payment and approval.

The karaoke server 400 is connected to the music content distribution server 100 through the Internet network and downloads the music content requested by the karaoke customers to serve each half-cycle 400, the detailed configuration of the karaoke server 400 This will be described later with reference to FIG. 7.

Next, a process of inserting copyright information into the music content in the music content distribution server 100 and storing the copyright information in the database will be described with reference to FIGS. 2 and 3.

2 is a block diagram illustrating a detailed configuration of the music content distribution server 100 of FIG. 1, and FIG. 3 illustrates a process of inserting copyright information into a music content and storing the same in a database according to an exemplary embodiment of the present invention. It is a flow chart.

Referring to FIG. 2, the music content distribution server 100 of the present invention may register a music content generated by a creator and copyright information thereof, and the music content and copyright information registered in the registration unit 110. The sound source DB 130 and the copyright information DB 120 each of which is stored therein, the copyright information inserting unit 140 for inserting the copyright information into the music content as a watermark, and encoding the music content into which the copyright information is inserted using a compression technique. The file encoding unit 150 for storing the encoded file, the music file DB 160 for storing the encoded file, and receiving a request for providing the music file from the karaoke side, encrypts the music file in a predetermined manner and provides the karaoke server 400 with the charge. Receives encrypted music files from the copyright and music file management unit 200 and the copyright and music file management unit 200, which are connected to the payment unit 500 to help the billing process. It consists of a file transfer unit 170 provided to the karaoke server 400 via the Internet network (300).

With reference to FIGS. 2 and 3, first, when the original music content is generated by the composer or composer, the copyright holder is determined, and the generated music content and copyright information thereof are, for example, the music content distribution server of the copyright association ( It is registered in the registration unit 110 of 100 (S1000). The registered music content and copyright information are stored and managed in the sound source DB 130 and the copyright information DB 120, respectively.

Next, the music content and copyright information stored in the sound source DB 130 and the copyright information DB 120 are moved to the copyright information inserting unit 140. The copyright information inserting unit 140 first generates a watermark based on copyright information such as a writer, composer, or copyright holder received from the DB 120.

As described above, the watermark is a key generation method for generating a watermark by generating a pseudo random number using copyright information as a key value, a logo method for generating a digital image itself as a watermark, or other methods as described above. Can be generated by The generated watermark is inserted into the music content according to the watermark embedding algorithm in the copyright information inserting unit 140 (S1100).

The music file in which the watermark is inserted is transmitted to the file encoding unit 150, and encoding of the file, that is, compression of the file is performed (S1200). Since digitized music files are quite large in size, there is a problem in transmitting them in their original form in communication, and they are compressed to a size suitable for online transmission.

The compression techniques include MP3 (MPEG-1 Audio Layer 3: Faunhofer), AAC (Advanced Audio Coding: Fraunhofer, AT & T, Dolby Labs, Sony, NEC et al.), AC-3 (Dolby Labs), PAC (Perceptual Audio Coder). AT & T / Lucent), ATRAC (Adaptive Transform Acoustic Coding: Sony), TwinVQ (Transform -Domain Weighted Interleave VectorQuantization: NTT), Qdesign Music Format (Apple), and MS Audio (Microsoft) can be used. The compression technique in the present invention is not limited thereto.

The music file encoded by the file encoding unit 150 using the above-described compression technique is stored in the music file DB 160 (S1300).

Before describing an embodiment in which a music file inserted with copyright information stored in the music file DB 160 is provided to a karaoke party at the request of a user, before the user uses a music content providing service provided by a copyright association, The process of registering will be described with reference to FIG.

4 is a flowchart illustrating a user registration and user unique key generation process according to a preferred embodiment of the present invention.

The user (ie, karaoke side) first accesses the site of the music content distribution server 100 through the Internet network 300 or the like (S2000). Enter the information (S2100).

When the subscription is approved according to the input of the user information (S2200), the music content distribution server 100 transmits the user application to the karaoke server 400 (S2300), and the transmitted user application is the karaoke server 400, that is, the client. It is executed in stage (S2400).

The user application may be, for example, a program such as ActiveX, which provides a module for generating a user's unique key, managing downloaded music contents, and managing user information. In the present invention, it is preferable to use AnyCap, which is a product of the applicant, as the user application.

The user application (i.e. AnyCap) detects the user's unique system ID and generates the user's unique key based on it (described in detail below), the communication module that controls the user's behavior, the downloaded data, and the user profile. It can be composed of modules for managing data, payment, payment data, and the like.

In addition, the user application manages processes such as storing, searching, and displaying a list of files downloaded, and provides a user interface for the user to control and use such processes.

When the user application is executed, the system information of the user is automatically retrieved to automatically extract the system information corresponding to the system unique characteristic of the user (ie, karaoke) computer terminal, and generate the user unique key based on the extracted information. (S2500). The user cannot see the user's unique key at all, cannot change it, and the security is guaranteed since the unique key is issued.

Here, the system information corresponding to the system inherent characteristics are inherent characteristics of the system, such as the ID of the processor, the manufacturer information of the hard disk, the ID of the network card, and the ID of the system board. Unique key is generated. The generation of such a user unique key is described in more detail in Korean Patent Application No. 2001-23562.

The generated user unique key is transmitted back to the music content distribution server 100 from the karaoke server 400 and stored in the user unique key DB 240 (see FIG. 5 to be described later) of the server 100 (S2600).

Next, a process of encrypting the music file requested from the user and transmitting the encrypted music file to the user will be described with reference to FIGS. 5 and 6.

FIG. 5 is a block diagram illustrating a detailed configuration of the copyright and music file management unit 200 of FIG. 2, and FIG. 6 illustrates a process of encrypting a music file requested from a user and transmitting the same to a user. It is a flowchart explaining.

Referring to Figure 5, the copyright and music file management unit 200 of the present invention in response to a request of the user's music file key management unit 210, which provides a file encryption key for encrypting the requested music file, the user's music A rule DB 232 storing a predetermined rule relating to the use of the file, a rule manager 232 which obtains a predetermined rule from the rule DB 232 according to the user and the requested music file, and provides the same; The user unique key DB 240, the requested music file obtained from the music file DB 160, the user unique key of the requested user, the file encryption key of the requested music file, and the rule packet provided from the rule manager 232 are stored. It is composed of a binding unit 220 to combine and encrypt to generate a file to be transmitted to the user and provide it to the file transmission unit 170.

5 and 6, when a user connects to the music content distribution server 200 and requests a music file (S3000), the requested music file is searched and found in the music file DB 160, and the binding unit ( 220) (S3100).

Also, the user's unique key generated during the user registration process with reference to FIG. 3 is transmitted from the user unique key DB 240 to the binding unit 220, and a file encryption key suitable for the requested music file is stored in the key management unit ( From 210, the binding unit 220 is transmitted, and according to the requested user and the requested music file, a predetermined rule packet for the user's use is transmitted to the binding unit 220 (S3200).

Here, a rule refers to a rule for a user (ie, a karaoke party) to download a music file and use it. That is, the rule packet includes information such as copy control information, maximum copy count, intellectual property information, music ID, and the like, which are described in more detail in the above-described Korean Patent Application No. 2001-23562.

Next, the music file, the user unique key, the file encryption key, and the rule packet transmitted to the binding unit 220 are bound, that is, combined and encrypted. Specifically, the music file is encrypted with a file encryption key and combined with a rule packet to generate a bound file (S3400). In this process, the music content is charged based on the details (S3500).

In order for a user to decrypt a music file encrypted with the file encryption key later, a file decryption key is required, and the file decryption key must also be transmitted to the user. In the present invention, the file decryption key is not directly transmitted to the karaoke server 400, but after the file decryption key is encrypted with the user unique key (S3600), the file decryption key encrypted with the user unique key is encrypted together with the encrypted music file. It transmits to the transmitter 170. Therefore, in order to decrypt the encrypted music file, the user must first decrypt the encrypted file decryption key, which will be described in detail later.

Next, a process in which the music file transmitted from the music content distribution server 100 is decoded and reproduced in the karaoke half cycle 600 of the user side will be described with reference to FIGS. 7 and 8.

FIG. 7 is a block diagram showing a detailed configuration of the karaoke server 400 of FIG. 1, and FIG. 8 is a karaoke on the user side in which music files transmitted from the music content distribution server 100 are decoded according to an exemplary embodiment of the present invention. It is a flowchart illustrating the process of being reproduced in half cycle 600.

Referring to FIG. 7, the karaoke server 400 of the present invention decodes and decodes the music DB 410 storing the received music file and the received file in a half cycle 600, and also controls access of the karaoke user. And an access control and management unit 420 that performs access reporting.

The access control and management unit 420 may include a file receiving unit 422, a switching hub 424, a memory unit 426, and a music file receiving a music file transmitted from the music content distribution server 100 through the Internet network 300. And a file decoder 428, a file decoder 430, and a watermark detector 432 for decoding the music file.

7 and 8, the music file transmitted through the Internet network 300 is received by the file receiving unit 422 of the access control and management unit 420 and stored in the music file DB 410 (S4000). ). When a user who wants to sing a song in karaoke selects and requests a song to be sung through the semi-period 600, for example (S4100), the music file stored in the music DB 410 is transferred through the switching hub 424. It is stored in the memory unit 420 such as a hard disk (S4200).

Next, the file decryption unit 428 first decodes the file decryption key (S4300). As described above, the file decryption key is provided encrypted by the user's unique key in the music content distribution server 100. Therefore, in order to decrypt the encrypted file decryption key, the system ID checked by the user's system must be identical to the system ID upon initial user registration. That is, the user unique key generated by checking the user's system must match the user unique key that encrypts the file decryption key. As a result, the transmitted music file can be decrypted and used only in a legitimate user's system.

Next, using the file decryption key decrypted in step S4300, the file decryption unit 428 decrypts the encrypted file (S4400), the file decoding unit 430 decodes the file (S430), and The watermark embedded in the music file is detected (S4600). If the watermark detected by the watermark detection algorithm is authenticated as legitimate, the music file is reproduced in half cycle 600 (S4700), and the karaoke user sings a song. The decoding, decoding, and watermark detection processes are performed in real time.

At the time of reproduction, information on which music is played, that is, access information, is transmitted to the music content distribution server 100 in real time through access reporting, which is a collection of copyright fees, a distribution of users and a survey of user preferences, and a survey of popular karaoke songs. Or the like.

In this regard, in more detail on the collection and distribution of copyright fees, the current karaoke system collects a certain amount of money per karaoke device and pays to the Copyright Association (for example, one month per karaoke device). 5,000 won).

However, various problems arise in that the uniformly collected royalty is distributed to the copyright holder. In other words, the more music is called for the music called in karaoke, the more distribution of copyright fees should be made. There is no system and process that can handle this consistently and transparently.

According to the access reporting according to the present invention, how much song is called in karaoke is transmitted and stored in real time. As a standard, it is possible to add a distribution of royalties to the heavily used music.

Although the invention has been particularly shown and described with reference to the above embodiments, it has been used for the purpose of illustration and those of ordinary skill in the art to which the invention pertains have the spirit and scope of the invention as defined in the appended claims. Various modifications can be made without departing.

The effects obtained according to the present invention will be described with reference to the respective agents as follows.

First, the copyright association can secure transparency of copyright management by direct delivery of music contents. And since the usage history is collected directly from karaoke, it is possible to secure the transparency of billing. In addition, billing system can automate the collection of copyright fees and DRM and watermarking technology can prevent illegal copying and distribution of contents.

The karaoke half-cycle association can be exempted from the management and copyright payment obligations of music contents and can faithfully manage the technical management of the karaoke half-cycle. In addition, it can contribute to the vitalization of the industry by the production of the new karaoke half-cycle and can reduce the distribution cost.

On the karaoke side, the latest song service is possible by real-time delivery of music, and the user service can be satisfied by the real-time supply of the latest song. In addition, installation and maintenance cost can be reduced by server system of karaoke half cycle.

Content creators can secure secure revenue through transparent copyright management and billing payment system, and can grasp the user's taste and real-time music trend according to the karaoke half-cycle music access reporting.

For the government, taxation is facilitated by the transparency of the billing system and the music access reporting of karaoke, and the new system can reduce the expectation of industry activation and copyright disputes. By preventing illegal copying and distribution, a sound culture of music contents can be established.

Technology companies can increase their sales by developing new markets and improve their skills based on user needs.

Claims (16)

A music content distribution server that manages copyright of music content and provides the music content at the request of a user; And a plurality of karaoke servers connected to the music content distribution server via a network and receiving music content from the music content distribution server, the method for copyright protection and management of music content. , a) searching for the requested music file stored in a music file database in the music content distribution server according to a request of a music file of the user of the karaoke server side; b) combining and encrypting the retrieved music file using a user unique key of the requested user, a file encryption key of the music file, and a rule packet relating to the use of the user; c) transmitting the combined and encrypted music file to the karaoke server; d) decoding the transmitted music file in the karaoke server; And e) playing the selected song through the karaoke half-cycle connected to the karaoke server with the decoded music file. The method of claim 1, The music file in step a) Prior to the request of the music file from the user, a copyright information signal relating to the music file is inserted as a digital watermark, The step (e) comprises detecting the watermark inserted in the transmitted music file and authenticating whether the music file is original. The method of claim 1, The user unique key in step b) is When the user accesses the music content distribution server and inputs user information prior to the request of the music file from the user, the system specific characteristics of the user terminal may be changed according to the execution of the user application downloaded from the music content distribution server. And generated based on the system information indicating and stored in the music content distribution server. The method of claim 3, wherein The system information is characterized in that it comprises one or more of the unique ID of the processor, the identification information of the hard disk and the network card ID that is the unique information that can distinguish the system from other systems. The method according to claim 3 or 4, Step b) b-1) encrypting the music file with a file encryption key; And b-2) encrypting a file decryption key capable of decrypting the encrypted music file with the user unique key, And c) transmitting the encrypted file decryption key to the karaoke server in addition to the encrypted music file. The method of claim 5, Step d) d-1) decrypting the transmitted encrypted file decryption key with a user unique key generated by checking the user's system; And d-2) decrypting the encrypted music file using the decrypted file decryption key. The method according to any one of claims 1 to 4, The rule packet in step b) is And at least one of copy control information, maximum copy number, intellectual property information, and music ID. The method according to any one of claims 1 to 4, After step e), f) an access reporting step of transmitting information on what music is played in step e) from the karaoke server to the music content distribution server in real time; And the result of the access reporting is used as a reference for distributing the copyright fee according to the reproduction of the song to the author of the music content. A music content distribution server that manages copyright of music content and provides the music content at the request of a user; And a plurality of karaoke servers connected to the music content distribution server through a network and receiving music content from the music content distribution server. The music content distribution server Means for retrieving the requested music file stored in a music file database in the music content distribution server according to a request of a music file of the user on the karaoke server side; Means for combining and encrypting the retrieved music file using a user unique key of the requesting user, a file encryption key of the music file, and a rule packet relating to the use of the user; And Means for transmitting the combined and encrypted music file to the karaoke server, The karaoke server Means for decoding the transmitted music file; And And means for playing the selected song through the karaoke half-cycle connected to the karaoke server with the decoded music file. The method of claim 9, The music file stored in the music file database in the music content distribution server is a copyright information signal for the music file is inserted as a digital watermark prior to the request of the music file from the user, And said decoding means of said karaoke server comprises watermark detection means for detecting whether said music file is original by detecting a watermark inserted in said transmitted music file. The method of claim 9, The user unique key is When the user accesses the music content distribution server and inputs user information prior to the request of the music file from the user, the system specific characteristics of the user terminal are changed according to the execution of the user application downloaded from the music content distribution server. And generated based on the system information indicating and stored in a user unique key database in the music content distribution server. The method of claim 11, The system information is characterized in that it comprises one or more of the unique ID of the processor, the identification information of the hard disk, and the ID of the network card that is the unique information that can distinguish the system from other systems. The method according to claim 11 or 12, The combining and encrypting means of the music content distribution server File encryption means for encrypting the music file with a file encryption key; And And file decryption key encrypting means for encrypting a file decryption key capable of decrypting the encrypted music file with the user unique key. The method of claim 13, The decoding means of the karaoke server File decryption key decrypting means for decrypting the transmitted encrypted file decryption key with a user unique key generated by checking the system of the user; And And file decryption means for decrypting the encrypted music file using the decrypted file decryption key. The method according to any one of claims 9 to 12, And the rule packet includes one or more of copy control information, maximum copy number, intellectual property information, and music ID. The method according to any one of claims 9 to 12, The karaoke server Access reporting means for transmitting information on what music is played through the karaoke half-cycle from the karaoke server to the music content distribution server in real time; And the result of the access reporting is used as a reference for distributing the copyright fee according to the reproduction of the song to the author of the music content.