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Method and system for replacing copyright object in digital copyright management system

A technology for digital rights management and copyright objects, which is applied in the fields of electronic digital data processing, instruments, program/content distribution protection, etc. It can solve the problem that DRM technology cannot be exchanged for copyright objects, so as to reduce the network burden, increase the degree of freedom, overcome the The effect of wasting resources

Active Publication Date: 2009-04-29
HUAWEI TECH CO LTD
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Problems solved by technology

[0009] In order to solve the technical problem that the existing DRM technology cannot complete the exchange of copyright objects in one interaction process, the present invention provides a method and system for exchanging copyright objects in a digital rights management system

Method used

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  • Method and system for replacing copyright object in digital copyright management system
  • Method and system for replacing copyright object in digital copyright management system
  • Method and system for replacing copyright object in digital copyright management system

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Embodiment Construction

[0054] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0055] refer to figure 1 , illustrates a digital rights management system of the present invention. The DRM system includes a content center 101 , a copyright center 102 and a DRM agent module 104 in a client 103 .

[0056] refer to figure 2 , the copyright center 102 further includes: a first copyright exchange message receiving unit 201 , a first copyright exchange message sending unit 202 , a first copyright exchange processing unit 203 and an index creation unit 204 .

[0057] refer to image 3 , the DRM agent module 104 further includes: a second rights exchange message receiving unit 301 , a second rights exchange message sending unit 302 and a second rights exchange processing unit 303 .

[0058] Wherein, the second copyright exchange message sending unit 302 sends a copyright exchange request message to the first copyright exchang...

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Abstract

A method and system for exchanging version object in digital version managing system are provided to solve the problem of that the prior art of DRM can not complete exchanging version object in one interactive process. The method comprises: the digital version management proxy module of client sends one version exchange request message carrying at least one original version object information and at least one target version object information to the version center, the version center, based on received version exchange request message, decides to exchange version objects and generates version exchange response message, the version center sends version exchange response message to the digit version management proxy module, the digit version management proxy module, based on received version exchange response message, replaces the original version object, or keeps the original version object.

Description

technical field [0001] The invention relates to the field of digital network communication, in particular to a digital copyright management technology. Background technique [0002] DRM (Digital Rights Management) is a technology that appears in network communication to prevent the illegal use of digital content. Content providers and operators can use DRM technology to manage the content downloaded by users, which can effectively prevent piracy and protect the rights and interests of content providers / developers. At present, a lot of research work has been carried out on DRM in the world. Among them, the mobile DRM standard formulated by OMA (Open Mobile Alliance, Open Mobile Alliance) has been widely supported and recognized. [0003] The OMA DRM system includes a content center (Content Issuer, CI), a rights center (Rights Issuer, RI) and a DRM agent module (DRM Agent). Among them, the CI is responsible for sending the encrypted digital content product DCF (DRM Content...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/00G06F21/10
CPCG06F21/10
Inventor 赵琴张仁宙
Owner HUAWEI TECH CO LTD
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