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Transferring licensed digital content between users

A data content and digital technology, applied in the field of digital rights management, can solve problems such as difficult document data files, unauthorized copying, etc.

Inactive Publication Date: 2009-09-02
SANDISK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This way of generating document page images makes it very difficult to make unauthorized copies of document data files stored in DRM devices

Method used

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  • Transferring licensed digital content between users
  • Transferring licensed digital content between users
  • Transferring licensed digital content between users

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0024] DRM device and its operation

[0025] figure 1A common form of DRM device 11 and digital appliance 13 is shown in . The DRM device 11 is a flash drive having a USB plug 15 for removably plugging into a USB socket 17 on a digital appliance 13, which will typically be a personal computer, notebook computer or other host computer containing a USB socket . Of course, other digital appliances may provide similar connectivity to other forms of memory devices. Alternatively, plug 15 may take the form of a FireWire connector. Furthermore, wireless communication may be used between the digital appliance 13 and the DRM device 11 rather than using a wired connection therebetween.

[0026] figure 1 It is also illustrated in the SD card 19 as a DRM device, which can be removably inserted into the card slot 21 of the digital appliance 13 for electrical connection with its external contacts 23 . Some form of memory card adapter (such as one that also plugs into the USB socket ...

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PUM

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Abstract

Techniques are described for reselling digital data content, such as books, other types of documents, music, video, software and games. Such data are stored in a small portable digital rights management (DRM) device, such as a non-volatile memory card or flash drive, along with a license that defines the extent of the use permitted of the data. The content and license data are processed by a microprocessor that is included in the memory card or flash drive, including modification of the license in response to the data content being resold and transferred to another memory card or flash drive. The process is a digital version of selling a book, CD, DVD or the like in a second-hand market.

Description

technical field [0001] The present invention relates generally to the field of digital rights management, and more particularly to a method of delivering rights in licensed digital content according to a digital rights policy in the content. Background technique [0002] The Internet global network and other data communication networks enable many digital appliances to interconnect and exchange information. Digital appliances include personal computers, laptop computers, desktop computers, personal digital assistants (PDAs), mobile phones, MP3 players, DVD players, game consoles, digital recording devices such as digital cameras, and the like. One particular use of the Internet and other networks, such as cable and satellite or corporate or institutional networks, is the distribution of digital files, especially digital content files. [0003] A digital content file comprising data whose end use is to be viewed, listened to, read, played, executed or otherwise exploited by ...

Claims

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Application Information

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IPC IPC(8): G06F21/00
CPCG06F2221/0791H04L2463/101G06F2221/2137G06F21/10G06F21/1086
Inventor 吉东·埃拉扎尔丹·哈尔卡比尼赫迈亚·温加滕
Owner SANDISK CORP
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