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Digital content delivery system

A technology for distributing system and digital content, applied in the direction of program/content distribution protection, electronic digital data processing, data processing application, etc., can solve the problems of no access rights management server method or change method, inability to enjoy, etc.

Inactive Publication Date: 2006-04-05
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the prior art, there is the following problem: even if the content provider wants to change the usage conditions after the usage conditions are distributed from the rights management server to the user terminal, there is no access for changing the usage conditions of the content distributed to the user terminal. Method or change method of rights management server
Also, if the number of times the content "ONGAKU" can be reproduced is increased by 3 times during a campaign, etc., the benefit cannot be enjoyed, and the same problem occurs as in the case of the content "EIGA"

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0070] FIG. 1 is an overall configuration diagram of a digital content distribution system in Embodiment 1 of the present invention.

[0071] As shown in FIG. 1 , the digital content distribution system 1 includes at least one rights management server 100 , at least one content server 101 , at least one user terminal 110 , and a transmission line 120 .

[0072] The content server 101 is installed on the side of the operator α related to content distribution, and distributes the content data 200 to the user terminal 110 .

[0073] The rights management server 100 is installed on the side of the operator α similarly to the content server 101, and is a server that manages the usage rights of each content, and according to the usage rights purchase request 800 from the user terminal 110, the usage rights or access conditions 601 are licensed. Data 1700 is distributed to user terminals 110 . Furthermore, the right management server 100 distributes the license data upgrade data 140...

Embodiment approach 2

[0197] Next, a digital content distribution system in Embodiment 2 of the present invention will be described.

[0198] The digital content distribution system 2 in the second embodiment has substantially the same structure as the digital content distribution system 1 in the first embodiment, and its operation is only partially different, so only the differences from the first embodiment are described here, and in the drawings Assign the same number to the same component.

[0199] FIG. 18 is a block diagram showing the overall configuration of the digital content distribution system 2 in the second embodiment.

[0200] The overall configuration of the digital content distribution system 2 in Embodiment 2 is the same as the overall configuration of the digital content distribution system 1 in Embodiment 1 described with reference to FIG. 1 , so the description is omitted.

[0201] In FIG. 18 , the rights management server 1800 and the user terminal 1810 are slightly different ...

Embodiment approach 3

[0234] Next, the digital content distribution system 3 in Embodiment 3 of the present invention will be described.

[0235] The digital content distribution system 3 in Embodiment 3 adopts approximately the same structure as the digital content distribution system 2 in Embodiment 2, and its operation is only partially different, so only the differences from Embodiment 2 are described here, and are shown in the accompanying drawings The same reference numerals are given to the same members for description.

[0236] FIG. 27 is a block diagram showing the overall configuration of the digital content distribution system 3 in the third embodiment.

[0237] The overall configuration of the digital content distribution system 3 in Embodiment 3 is the same as that in Embodiment 2, and therefore its description is omitted. However, in FIG. 27 , the right management server 2500 has a slightly different content structure from that of the right management server 1800 in Embodiment 2, so ...

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PUM

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Abstract

A digital content distribution system ( 1 ) is composed of a right management server ( 100 ) and a user terminal ( 110 ) which are connected via a transmission line ( 120 ). The right management server ( 100 ) is made up of: a license data generating unit ( 304 ) which issues license data (usage right information) ( 1700 ) indicating a usage rule of content that is a digital copyrighted work to the user terminal ( 110 ); and an access condition setting unit ( 305 ) which notifies the user terminal ( 110 ) of update information (access condition) regarding necessity of updating the license data ( 1700 ) issued to the user terminal ( 110 ). The user terminal ( 110 ) is made up of: a content DB ( 701 ) which stores content; a license data DB ( 702 ) which stores the license data ( 1700 ) issued by the license data generating unit ( 304 ); a content reproducing unit ( 710 ) which uses the content stored in the content DB ( 701 ) in accordance with the usage rule indicated by the license data ( 1700 ) stored in the license data DB ( 702 ); and a license data upgrading unit ( 706 ) which requests the right management server ( 100 ) to update the license data ( 1700 ) stored in the license data DB ( 702 ) in accordance with the access condition notified by the access condition setting unit ( 305 ).

Description

technical field [0001] The present invention relates to a digital content distribution system, and more particularly, to a digital content distribution system capable of protecting rights associated with digital content data. Background technique [0002] In recent years, systems for distributing digital works such as music, video, and games through the Internet or digital broadcasting have been developed, and some of them have entered the stage of practical use. In addition, from the viewpoint of copyright protection, when distributing these contents, a method of restricting the number of times of reproduction of the distributed contents, movement, copying, etc., of contents usage control has also been studied. [0003] In a conventional digital content distribution system, each user's use conditions for content are distributed to user terminals together with the content, and the user terminals manage use of the content according to the distributed use conditions (for examp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q30/00G06F21/00G06F21/10
CPCG06F21/105G06Q30/06
Inventor 冈本隆一小林进斯特凡·沃尔特德田克己
Owner PANASONIC CORP