MPEG-21 digital content protection system

A technology of MPEG-21 and digital content, which is applied in the field of digital content protection and management, and can solve problems such as content owners' sales obstruction

Inactive Publication Date: 2005-11-02
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As hard drives or other storage embedded devices become more and more, another question is how content protection technology can ensure that granted rights are properly exercised
[0007] This not only brings great obstacles to the content owner to sell the content, but also brings great obstacles to CE (consumer electronics) manufacturers who produce different versions of products only to match the various protection technologies provided by the content provider. huge cost

Method used

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  • MPEG-21 digital content protection system
  • MPEG-21 digital content protection system
  • MPEG-21 digital content protection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] (means to solve the problem)

[0054] On the content packaging side:

[0055] Refer to the concept of the IPMP control chart to see all rights and protections directly associated with said content;

[0056] Define an IPMP Control Graph or REL-IPMP Control Graph as a protection metadata holder to contain rights and protection information for packaging and protecting the content;

[0057] Place rights and conditions in IPMP control charts or REL-IPMP control charts;

[0058] Put content encryption information in IPMP control chart or REL-IPMP control chart;

[0059] Put the watermark information in the IPMP control chart or REL-IPMP control chart;

[0060] Place the rights protection information in the IPMP control chart or the REL-IPMP control chart;

[0061] Place and represent the key information used to encrypt the content in the IPMP Control Graph or REL-IPMP Control Graph;

[0062] Place the key / license information in the IPMP Control Graph or REL-IPMP Control Gr...

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PUM

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Abstract

The invention is related to Digital Rights Management (DRM) or Intellectual Property Management and Protection (IPMP) for a generic digital content. The concept of IPMP Control Graph and REL-IPMP Control Graph is introduced to carry protection signalling and rights expression data. Both content packaging and terminal processing relating to the above control graph are clearly defined and elaborated.

Description

technical field [0001] The present invention relates to Digital Rights Management (DRM) or Intellectual Property Management and Protection (IPMP) for digital content in general, and in particular to protection and management of digital content independent of any data format. Background technique [0002] With the widespread use of various networks, there will be a need to be able to transmit and distribute digital content to users through such networks in addition to using CDs and DVDs. Content owners are asking the right questions. Is it safe to sell its content this way? [0003] As more and more hard disks or other storage embedded devices become more and more, another problem is how content protection technology can ensure that granted rights are properly exercised. [0004] Since there are many different digital formats for packaging content in digital form for easy transfer over various networks, the question arises of how protection techniques can be cross-used betw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/10H04N7/167H04N21/254H04N21/4627H04N21/81H04N21/835H04N21/8352H04N21/8355H04N21/8358
CPCH04N21/8193G06F2221/0737H04N21/835G06F2221/2137G06F2221/0766H04N21/2541H04N21/4627H04N21/8355G06F21/10H04N21/8358H04N7/1675H04N21/8352H04N21/83555G06F21/1073G06F21/16
Inventor 申省梅黄仲阳吉明上野孝文
Owner PANASONIC CORP
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