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Digital contents distribution system, right management server, and user terminal

A technology of user terminal and rights management, applied in the direction of electronic digital data processing, special data processing application, program/content distribution protection, etc., can solve the problem of not being able to obtain information about the terminal

Inactive Publication Date: 2006-03-22
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is such a problem that the server cannot obtain information about the terminal at any timing, such as the history log of the content

Method used

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  • Digital contents distribution system, right management server, and user terminal
  • Digital contents distribution system, right management server, and user terminal
  • Digital contents distribution system, right management server, and user terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] Embodiments of the present invention will be described below with reference to the drawings.

[0042] figure 1 Shown is an overall configuration diagram of the digital content distribution system in the embodiment of the present invention. exist figure 1 Among them, the digital content distribution system includes at least one rights management server 100 , at least one content server 101 , at least one user terminal 110 , and a transmission network 120 . Each of these components in the digital content distribution system will be explained one by one below.

[0043] The rights management server 100 is a server for managing usage rights of each content, and is located on the side of the content distributor α for content distribution. Once a request is received from the user terminal 110, the rights management server 100 treats the usage rights as Figure 9 License data 900 is shown distributed to user terminals 110 . The license data 900 will be described in detai...

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PUM

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Abstract

In a right management server ( 100 ), a license data generation / updating unit ( 307 ) generates license data ( 900 ) including a use condition ( 503 ) for permitting a user to use a content based on a content use right ( 500 ) owned by the user. A subset use condition setting unit ( 308 ) sets a subset use condition ( 901 ) for temporarily invalidating the license data ( 900 ) in the license data ( 900 ). A communication unit ( 311 ) transmits the license data ( 900 ) in which the subset use condition ( 901 ) is set to the user terminal ( 110 ), and receives the license data ( 900 ) returned from the user terminal ( 110 ). Upon receipt of the invalidated license data ( 900 ), the license data generation / updating unit ( 307 ) cancels the invalidation of the license data ( 900 ) by updating the subset use condition ( 901 ).

Description

technical field [0001] The present invention relates to a digital content distribution system, and more particularly to a digital content distribution system allowing rights protection with respect to digital content data. Background technique [0002] In recent years, systems for distributing digital works such as music, videos, games, etc. through the Internet, digital broadcasting, etc. have been developed, and some of them are in the stage of practical use. In keeping with the development of such content distribution systems, from the viewpoint of copyright protection, content usage control techniques for controlling the number of times of reproduction, movement, and copying of distributed content are under consideration. [0003] In a conventional digital content distribution system as disclosed in Japanese Laid-Open Patent Application No. 2000-48076, for example, content usage conditions with respect to each user and content are distributed to user terminals, and user ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/00G06F21/10
CPCG06F21/10G06F17/00
Inventor 小野田仙一德田克已山本雅哉三浦康史
Owner PANASONIC CORP