KR20060129581A - How to provide copyright file download service - Google Patents

Abstract

The present invention relates to a method for providing a copyright file download service. For example, a device for reproducing the copyright file in a content providing server such as a DRM server that provides a paid copyright file such as a digital rights management (DRM) file. After confirming the information in advance, and generating and providing a copyright file encrypted as a file that can be played on the corresponding device, the personal computer (PC) executing the encryption operation on the digital rights management (DRM) file, The digital copyright file can be decoded and reproduced normally using only the above device even without the connected connection. Therefore, even in various types of devices such as a car audio device that is difficult to use in connection with a personal computer, the digital copyright file can be used. To decrypt and play back normally It will be very useful inventions.

Description

How to provide copyright file download service {Method for providing rights management file download service}

1 illustrates a system configuration to which a general copyright file download service providing method is applied.

2 illustrates a system configuration to which a copyright file download service providing method according to the present invention is applied.

3 is a flowchart illustrating a method of providing a copyright file download service according to the present invention.

※ Explanation of code for main part of drawing

100: DRM server 200: personal computer

300: device 400: device information providing server

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for providing a copyright file download service. For example, a paid audio file, such as a digital rights management (DRM) file, is difficult to connect and use with a personal computer (Car). Audio) This invention relates to a method for providing a copyright file download service for enabling normal decryption and playback even in various types of devices such as devices.

Recently, content provider servers such as DRM servers that provide copyright files of various contents for a fee have been introduced one after another. For example, as shown in FIG. 1, the DRM server 100 Various copyrighted sound sources are transmitted as DRM files through an interface with a personal computer (PC) 200 connected and connected through the Internet (not shown).

Meanwhile, various types of devices (Devices 1, 2, ..., M), such as MP3-Player, may be connected and connected to the personal computer 200, and in the personal computer 200, The DRM file transmitted from the DRM server 100 is provided as an encrypted DRM file that can be played only by the connected and connected device.

For example, assuming that a unique serial number assigned to a corresponding device to play the DRM file is '1111 0000', the personal computer 200 transmits the DRM received from the DRM server 100. The file is encrypted with '1111 0000' and provided to the device.

Accordingly, since the device uses a '1111 0000', which is a unique serial number assigned to itself, as a decryption code, the DRM file is normally decrypted and reproduced, and therefore, only in the device to which the serial number is assigned. The DRM file is played back normally, and normal playback is not possible on the other devices.

However, when encrypting the DRM file received from the DRM server in the personal computer as described above, the user must connect and use the device to the personal computer, such as a car audio device, for example, In a device that is difficult to connect to a personal computer, there is a problem that the DRM file cannot be played normally.

Therefore, the present invention was created to solve the above problems, for example, in a content providing server such as a DRM server, after confirming in advance information about a device (Device) to play the copyright file, the playback on the device; By creating and providing an encrypted copyright file as a possible file, a copyright file download service for easily decrypting and playing back DRM files even on a device such as a Car Audio device that is difficult to connect to a personal computer. To provide a method, there is a purpose.

Method for providing a copyright file download service according to the present invention for achieving the above object, the first step to confirm the information of the device to download and play the copyright file; And providing a copyright file encrypted as a file playable on the device, based on the identified device information.

In addition, the step 1, after confirming the serial number of any device received by the personal computer connected via the Internet, and receiving and confirming the information of the corresponding device through the interface with the device information server In the second step, a copyright file encrypted by a file that can be played on the device is generated based on the identified device information and provided to a personal computer connected and connected through the Internet.

Hereinafter, a preferred embodiment of the method for providing a copyright file download service according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a diagram illustrating a system configuration to which a copyright file download service providing method according to the present invention is applied. For example, the DRM server 100 that provides various DRM files with copyright is provided on the Internet (not shown). In addition to the personal computer 200 is connected through the connection, the device information providing server 400 may be connected.

On the other hand, the DRM server 100, after confirming the serial number (Serial Number) of any one device received by the personal computer 200 connected through the Internet, the information of the corresponding device corresponding to the, Request and receive through the interface with the device information providing server 400.

In addition, after confirming the device information, the DRM server 100 encrypts the sound source data into a file that can be played on the device, and then transmits the encrypted DRM file to the personal computer 200. In the personal computer 200, the DRM file is stored in a recording medium such as a hard disk (HDD) or a CD (CD).

The DRM file stored in the hard disk (HDD) is copied to a device such as an MP3-Player to which the serial number is assigned, or the car audio device to which the serial number is assigned. In a device such as the above, the DRM file recorded on the CD or the like is encrypted and decrypted using a unique serial number assigned to the device, which will be described in detail below.

3 is a flowchart illustrating a method for providing a copyright file download service according to the present invention. For example, a user uses the personal computer 200 to communicate with the DRM server 100 and the Internet. After connecting, the serial number of the specific device to play the DRM file of the desired sound source data, for example, a unique serial number assigned to a specific device such as a car audio device (for example, '0000 1111'). After entering), you will be asked to provide the desired sound source.

On the other hand, when the DRM server 100 receives the serial number of the car audio device received through the personal computer 200 as described above, and confirms the serial number, the device information providing server 400 In this case, the DRM server 100 transmits the serial number (eg, '0000 1111') to the device information providing server 400, and then requests information of a corresponding device. It is made (S11).

In addition, the device information providing server 400 checks the serial number received as described above, determines that the corresponding device is, for example, a car audio device, and provides information on the car audio device. In operation S12, the device information providing server 400 provides various device detailed information such as a signal processing scheme or an audio output level applied to the car audio device.

The DRM server 100 encrypts the sound source data requested by the user as a DRM file that can be reproduced by the car audio device to which the serial number is assigned, with reference to the received device information. At this time, the encryption code, the serial number assigned to the car audio device may be used, and transmits the encrypted DRM file to the personal computer (S13).

On the other hand, in the personal computer 200, the DRM file received through the above-described process is recorded and stored in the hard disk (HDD) or CD (CD), etc., and then the DRM stored in the hard disk (HDD) Copy and record the file to a device such as MP3-Player, or play the DRM file recorded on the CD on a device such as a car audio device. In this case, the encrypted DRM file is decrypted by a unique serial number assigned to the device.

As a result, even in a device such as a car audio device that is difficult to connect to a personal computer, the DRM file stored in a recording medium such as a CD can be normally decoded and played back using a unique serial number. .

Or more, preferred embodiments of the present invention described above, for the purpose of illustration, those skilled in the art, within the technical spirit and the technical scope of the present invention disclosed in the appended claims below, to further improve various other embodiments Changes, substitutions or additions will be possible.

In the copyright file download service providing method according to the present invention configured and configured as described above, for example, a content providing server such as a DRM server that provides a paid copyright file such as a digital rights management (DRM) file, After confirming in advance information on a device to be played, a personal computer (PC) that executes an encryption operation on a digital rights management (DRM) file by generating and providing a copyright file encrypted as a file that can be played on the device. ), Even when the device is not connected, the digital copyright file can be decrypted and reproduced normally using only the device, and thus various types of devices such as a car audio device, which are difficult to use with a personal computer. Even, digital copyright files can be easily It is a very useful invention that can be decrypted and reproduced.

Claims (5)

Step 1 of checking the information of the device to download and play the copyright file; And And providing a copyright file encrypted as a file that can be played on the device based on the identified device information. 2. The method of claim 1, The first step is to check the serial number of any device received by the personal computer connected through the Internet, and then to receive and confirm the information of the corresponding device through the interface with the device information server Copyright file download service providing method. The method of claim 2, The copyright file is a digital rights management (DRM) file, and wherein the serial number is a unique identification number assigned to the device. The method of claim 1, In the second step, the copyright file download service is provided to a personal computer connected to and connected through the Internet by generating a copyright file encrypted as a playable file on the device based on the identified device information. Way. The method of claim 4, wherein In the personal computer, after downloading the copyright file, the copyright file is transmitted to an arbitrary device according to a user's request, and the device decrypts and reproduces the copyright file using a unique serial number. Copyright file download service providing method, characterized in that.

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