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Digital rights management method and system

A digital rights management and manager technology, applied in the direction of electronic digital data processing, data processing applications, special data processing applications, etc., can solve the problems of distribution to third parties, unreasonable charges for users, and DRM content cannot be reused.

Inactive Publication Date: 2007-05-16
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, only users who have paid for the digital content are allowed to access the digital content, and users who have not paid for the digital content cannot access the digital content
However, in the case where a person who has paid for the digital content and has accessed the digital content intentionally distributes the digital content to a third party, many problems occur: the third party can use the digital content without paying for the digital content
However, in the playback device 30 supporting the playback function such as the data transport streaming function, it happens that there is no non-volatile storage device
In this case, a problem may occur that if the DRM content is used only once after obtaining the RO from the RO issuing institution, the DRM content cannot be used again
At the same time, if the RO of the corresponding DRM content is obtained from the RO issuing agency again, the cost of obtaining the RO will be paid again, so the problem of unreasonable charges to the user occurs

Method used

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  • Digital rights management method and system
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Embodiment Construction

[0032]Exemplary embodiments of the present invention will be described with reference to the accompanying drawings. However, the present invention is not limited to the exemplary embodiments disclosed below, but can be implemented in various ways. In addition, the exemplary embodiments described herein are provided only to help understanding of the present invention. Throughout the drawings, the same reference numerals are used to refer to the same or similar components.

[0033] The term "RO" can be considered as a license including the right to use encrypted content and restrictions on the right. The RO includes not only the definition of the rights to the content and constraints on the rights, but also the rights to the RO itself. An example of the right to content may be playback, and examples of the constraints may be the number of times of playback and a playback time period limit. The right to the RO itself can be exemplified by "move" or "copy". That is, the RO gra...

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Abstract

A digital rights management (DRM) method and system are provided. The method includes a DRM playback device changing a Rights Object (RO), transmitting the RO to an RO issuance authority, and the RO issuance authority receiving and storing the RO.

Description

[0001] This application claims priority from Korean Patent Application No. 10-2005-0107134 filed in the Korean Intellectual Property Office on Nov. 9, 2005, which is hereby incorporated by reference. technical field [0002] Methods and systems consistent with the present invention relate to methods of rights object storage in digital rights management systems, and more particularly to methods that can send information about changed rights objects to a rights object issuing authority and store the signal in a rights object Digital rights management method and system in an issuing organization. Background technique [0003] Recently, research on digital rights management (DRM) has been actively conducted, and commercial services applying DRM have been introduced or are being introduced. Unlike analog data, digital data has the characteristics of being able to be reproduced without loss, easily reused and processed, and easily distributed to third parties. Furthermore, digita...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/00G06Q30/06G06Q50/00G06Q50/10
CPCG06F21/10G06F17/00
Inventor 权元石
Owner SAMSUNG ELECTRONICS CO LTD