JP2008310609A - System for unitarily managing content - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To dispense with the need to move content by having a server unitarily manage the content processed by DRM (Digital Right Management). <P>SOLUTION: This system is a system for unitarily managing the content performed with the DRM processing by the server. In the system, right information and an encryption content for each user are managed on the server. A content user accesses a management server of each user storing the right information and the encryption content performed with the DRM processing, and performs reproduction processing. In performing reproduction, a reproduction result on a DRM content reproduction server storing a latest reproduction application is displayed on a terminal device of the content user. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a system for centrally managing DRM-processed content on a server.

  In a content distribution system that has been DRM (Digital Right Management) processed for use in a terminal device such as a personal computer or a mobile phone, the content provider first performs DRM processing on the original content to correspond to the DRM encrypted file and the corresponding file. DRM right information (for example, a license key) is generated. The encrypted file and the right information can be distributed from the server and combined on the content user's terminal device to use the content.

  However, since the content is downloaded and used on the content user's terminal device in the conventional system, the terminal device is changed or damaged, and in the case of content for mobile phones, the use carrier is changed by mobile number portability, etc. In this case, it is necessary to move the content purchased by the content user between the terminal devices. When the content user does not move the content, or when the content cannot be moved due to the above reasons, the user cannot use the purchased content again.

  In addition, the mobile phone terminal device used by content users has a small storage capacity, and it is relatively difficult to use large-capacity content. Furthermore, the latest version of the application for playing back content has to be confirmed and obtained by the content user.

JP 2005-258927 A

In order to achieve the above object, the present invention is a system in which a content provider or a communication provider centrally manages and distributes DRM-processed content and rights information (license key) corresponding thereto,
The content and rights information should always be accessed from the terminal device without being downloaded to the terminal device.
An encrypted content storage unit that stores DRM-processed encrypted content; a rights information storage unit that stores DRM-processed right information; a DRM content correspondence management unit that manages the correspondence between encrypted content and right information; A DRM content management server composed of a network control unit that performs data processing between the inside and outside of the system via a network;
Correspondence between DRM content management unit for each user that stores encrypted content for each user, right information storage unit for each user that stores right information for each user, DRM content for each user and right information for each user A management server for each user composed of a DRM content correspondence management unit for each user to be managed, and a network control unit for performing data processing between the inside and outside of the system via a network;
A playback application storage unit for storing a playback application that performs playback processing of content that combines DRM content and rights information, and content and playback application that manages the correspondence between the content that combines DRM content and rights information Correspondence management unit, playback application execution unit that executes playback application to play back content, processing result distribution unit that distributes processing result of playback application to user's terminal device, and data processing between inside and outside of system by network A DRM content playback server system configured with a network control unit for performing
It is characterized by comprising.

  The present invention is a system that centrally manages DRM-processed content on a server, and a content provider or a communication carrier can centrally manage DRM-processed encrypted content and rights information on a distribution server. Therefore, since the encrypted content and the right information are not downloaded to the terminal device, the content user does not need to move the encrypted content and the right information between the terminal devices. Further, since the content user can store the content in the storage unit for each user provided by the content provider or the communication carrier, a large volume of content can be used relatively easily. Further, since the content provider or the communication carrier manages the version of the content reproduction application on the server, it is not necessary for the content user to individually check and obtain the latest version.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing an embodiment of a system for centrally managing DRM-processed contents according to the present invention on a server.

  In FIG. 1, 11 is a personal computer in which a content provider creates original content, 12 is a personal computer operated by a content user who purchases content, a terminal device such as a PDA or a mobile phone, and 13 is a content provider or content usage Internet through which a user accesses the server integrated management system for DRM-processed content, 14 is a wireless line through which the content user uses this system, and 15 is when the content provider uploads original content A DRM content creation server 16 that creates encrypted content DRM-processed from the original content and rights information corresponding to the encrypted content, and performs content browsing and sales processing for content users; A sales portal site server that requests processing to an authentication server that performs authentication when a user accesses when reproducing content, 17 is an authentication server that performs user authentication processing when using 16 sales portal site servers, and 18 is a user's authentication server. A purchase history management server that manages the history of purchased content, 19 is a DRM content management server that stores DRM-processed encrypted content and right information and manages the correspondence thereof, and 110 is a DRM-processed encryption for each user. A management server 111 for each user that holds content and rights information and manages the correspondence thereof, and 111 is a DRM content playback server that manages content and an application that plays back the content and executes a playback application according to the content.

  In FIG. 2, the DRM content creation server includes a network control unit 21, an original content reception unit 22, a DRM content generation unit 23, and a DRM content distribution unit 24. The network control unit 21 is used for data processing inside the system and data processing with a content provider outside the system. The original content receiving unit 22 is used to receive original content data uploaded from a content provider. The DRM content generation unit 23 is used to generate encrypted content that has undergone DRM processing from original content and right information corresponding thereto. The DRM content distribution unit 24 is used to distribute the generated encrypted content and corresponding right information to the DRM content management server.

  In FIG. 3, the sales portal site server includes a network control unit 31, a content browsing unit 32, a user authentication request unit 33, and a content sales unit 34. The network control unit 31 is used for internal data processing, data processing at the time of access from a DRM content creation server outside the system, and a content user's terminal device. The content browsing unit 32 is used for the content user to make a decision while browsing the content to be accessed and purchased on the network. The user authentication request unit 33 is used to request processing from the authentication server when performing authentication processing at the time of content purchase and authentication processing at the time of content reproduction. Whether or not to continue the content purchase process and the content reproduction process is determined based on the authentication result from the authentication server. The content sales unit 34 is used for content sales processing for authenticated content users.

  In FIG. 4, the authentication server includes a network control unit 41, a user data storage unit 42, a user authentication processing unit 43, and a user data maintenance unit 44. The network control unit 41 is used for data processing inside the system and data processing with a sales portal site server outside the system. The user data holding 42 is used to store data for executing user authentication processing. In the embodiment of the present invention, as shown at 45, user name and password data are used, and passwords of user A, user B, and user C, which are user names, are AAA, BBB, and CCC, respectively. The user authentication processing unit 43 performs authentication processing of the accessing user using data stored in the user data storage unit 42. The user data maintenance unit 44 is used to perform maintenance such as new creation, change, and deletion of data in the user data storage unit 42.

  In FIG. 5, the purchase history management server includes a network control unit 51, a purchase target content reception unit 52, a purchase history storage unit 53 for each user, and a purchase processing result notification unit 54. The network control unit 51 is used for data processing in the system internal data processing, a sales portal site server outside the system, and a storage server for each user. The purchase target content reception unit 52 is used to acquire information on content purchased by a content user. The purchase history storage unit 53 for each user is used to store content purchase history data for each user. In the embodiment of the present invention, as shown at 55, the user name and the purchased content name are used, and the purchased content names of user A and user B, which are user names, are C1, C2, and C1, respectively. The purchase processing result notification unit 54 is used to notify the content user of the result of whether or not the content purchase has been processed normally.

In FIG. 6, the DRM content management server includes a network control unit 61, a DRM content correspondence management unit 62, an encrypted content storage unit 63, and a right information storage unit 64. The network control unit 61 is used for data processing inside the system and data processing between the DRM content creation server and the purchase history management server outside the system. The DRM content correspondence management unit 62 is used to manage the correspondence between the purchased content name, the encrypted content name, and the right information name. In the embodiment of the present invention, as shown at 65, the purchased content name, the encrypted content name, and the right information name are used, and the encrypted content name and the right information corresponding to the purchased content names C1, C2, and C3 are used. The names are DRM_C1, DRM_C2, DRM_C3, and R1, R2, and R3, respectively. The encrypted content storage unit 63 is used for storing encrypted content. The right information storage unit 64 is used for storing right information.
In FIG. 7, the management server for each user includes a network control unit 71, a DRM content correspondence management unit 72 for each user, an encrypted content storage unit 73 for each user, and a right information storage unit 74 for each user. The network control unit 71 is used for data processing inside the system and data processing between the authentication server and the DRM content management server outside the system. The DRM content correspondence management unit 72 for each user is used to manage the correspondence between the user name, the encrypted content name, and the right information name. In the embodiment of the present invention, as shown in 75, the user name, the encrypted content name, and the right information name are used, and the encrypted content name and the right information name corresponding to the user name user A and user B are DRM_C1, DRM_C2, DRM_C1, and R1_A, R2_A, and R1_B, respectively. The DRM content correspondence management unit 73 for each user is used for storing encrypted content for each user. The right information storage unit 74 for each user is used to store the right information for each user.

  In FIG. 8, the DRM content reproduction server includes a network control unit 81, a content and reproduction application correspondence management unit 82, a reproduction application storage unit 83, a reproduction application execution unit 84, and a processing result distribution unit 85. The network control unit 81 is used for data processing inside the system and data processing with a management server for each user outside the system. The content and reproduction application correspondence management unit 82 is used to manage the correspondence between the extension name and the reproduction application name. In the embodiment of the present invention, as shown at 86, the extension name and the reproduction application name are used, and the extension names mpg,. avi,. The playback application names corresponding to mpeg are MusicPlayer_A, MoviePlayer_A, and MoviePlayer_B, respectively. The reproduction application storage unit 83 is used for storing an application for reproducing content. The playback application execution unit 84 is used to play back content using a playback application. The processing result distribution unit 85 is used to distribute the processing result when the playback application is executed to the content user's terminal device.

  Next, the content registration processing, content purchase processing, and content reproduction processing by the system that centrally manages the DRM processed content according to the present invention in the sequence of FIG. 9 and the flowcharts of FIGS. 10, 11, and 12. It explains according to.

  FIG. 9 is a diagram showing a sequence between each terminal and each server. During the content registration process, the content is registered from the PC to the DRM content creation server (S901). Then, the DRM content creation server creates DRM content (S902), and the content is managed by the DRM content management server (S902).

  At the time of content purchase processing, the terminal device accesses the sales portal site server (S903), and user authentication is performed by the authentication server (S904). If authenticated, the content is purchased from the purchase history management server (S905). The purchase history management server executes the acquisition of the target content to the DRM content management server (S906). The DRM content management server distributes to the storage unit for each user to the storage server for each user (S907). In response to this, the storage server for each user updates the purchase history (S908), and notifies the terminal device of the normal completion of the purchase process (S909).

  At the time of content reproduction processing, the terminal device accesses the portal site (S910), performs user authentication (S911), accesses the storage unit for each user (S912), and activates the reproduction application (S913). The processing result is distributed to the terminal device (S914).

  FIG. 10 is a flowchart showing content registration processing in which a content provider creates content that has been DRM processed and registers it in the present system.

  The content provider registers the created original content in the DRM content creation server via the Internet (S111). First, the uploaded original content is stored and registered. If the content registration is not successful (S112N), the process returns to the content registration process again. If the content registration is successful (S112Y), the DRM-processed encrypted content and the corresponding rights information are generated (S113). The rights information corresponding to the generated encrypted content is distributed to the DRM content management server and then managed by the DRM content correspondence management unit (S114). The distributed encrypted content and right information are stored in the encrypted content storage unit and the right information storage unit, respectively.

  FIG. 11 is a flowchart showing content registration processing in which a content user purchases content from a terminal device.

  The content user accesses the sales portal site from the terminal device via the Internet or a wireless line (S121). The sales portal site server browses and selects the content to be purchased by the content browsing unit. When the content to be purchased is determined, the user is authenticated using the password (S122). At that time, an authentication process is requested to the authentication server by the user authentication request unit. If the user authentication is not successful on the authentication server (S122N), the sales portal site is accessed again. When the user authentication is successful (S122Y), the content sales section acquires information on the target content as the content purchase processing (S123) (S124). The corresponding content is acquired from the encrypted content storage unit and the right information storage unit by the DRM content correspondence management unit on the DRM content management server. The acquired data is distributed to the corresponding encrypted content storage unit and right information storage unit for each user on the storage server for each user (S125). If the distribution is not successful (S126N), the distribution process is performed again. If the distribution is successful (S126Y), the purchase history is updated by the purchase history storage unit for each user on the purchase history management server (S127). Thereafter, the purchase process result notification unit notifies the content user's terminal device that the purchase process was successful (S128).

  FIG. 12 is a flowchart showing content reproduction processing in which a content user reproduces content from a terminal device.

  The content user accesses the sales portal site server from the terminal device via the Internet or a wireless line (S131). In the sales portal site server, the user authentication request unit requests the authentication server to perform authentication processing. If the user authentication is not successful on the authentication server (S132N), the sales portal site server is accessed again. When the user authentication is successful (S132Y), the DRM content correspondence management unit for each user accesses the encrypted content storage unit for each user and the right information storage unit for each user on the storage server for each user. (S133). Thereafter, on the DRM content playback server, the playback application corresponding to the target content is started and executed by the content / playback application correspondence management unit and the playback application execution unit (S134). The processing result distribution unit distributes the processing result when the playback application is executed to the content user's terminal device (S135).

1 is a block diagram of the entire system showing an embodiment of the present invention. Block diagram of DRM content creation server Block diagram of sales portal site server Authentication server block diagram Block diagram of purchase history management server Block diagram of DRM content management server Block diagram of the management server for each user Block diagram of DRM content playback server Sequence diagram of the entire system Flow chart of content registration process Flow chart of content purchase processing Flow chart of content playback processing

Claims (1)

A system in which a content provider or a telecommunications carrier centrally manages and distributes DRM-processed content and corresponding rights information (license key),
The content and rights information should always be accessed from the terminal device without being downloaded to the terminal device.
An encrypted content storage unit that stores DRM-processed encrypted content; a rights information storage unit that stores DRM-processed right information; a DRM content correspondence management unit that manages the correspondence between encrypted content and right information; A DRM content management system including a network control unit that performs data processing between the inside and outside of the system via a network;
Correspondence between DRM content management unit for each user that stores encrypted content for each user, right information storage unit for each user that stores right information for each user, DRM content for each user and right information for each user A management system for each user comprising a DRM content correspondence management unit for each user to be managed and a network control unit for performing data processing between the inside and outside of the system via a network;
A playback application storage unit that stores a playback application that performs playback processing of content that combines DRM content and rights information, and content and playback application that manages the correspondence between the content that combines DRM content and rights information Correspondence management unit, playback application execution unit that executes playback application to play back content, processing result distribution unit that distributes processing result of playback application to user's terminal device, and data processing between inside and outside of system by network A DRM content playback system comprising a network control unit for performing
A system for centrally managing content that is characterized by comprising a server.

Images