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System for preventing unauthorized use of digital content

A digital content, unauthorized technology, applied in the direction of preventing unauthorized use of memory, transmission system, digital data authentication, etc. Effect

Inactive Publication Date: 2006-02-15
JAPAN WAVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, under current conditions, progress in digital content distribution is hampered

Method used

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  • System for preventing unauthorized use of digital content
  • System for preventing unauthorized use of digital content
  • System for preventing unauthorized use of digital content

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The following will refer to Figure 1 and figure 2 A first embodiment of the present invention will be described. FIG. 1 is a block diagram of a system for preventing unauthorized playback of digital content, which includes a block diagram of a distribution recording medium manufacturing apparatus used in the system. figure 2 It is a flow chart of the playback software used by the system.

[0053] The system 100 for preventing unauthorized use of digital content shown in FIG. 1 is a system for preventing unauthorized use of content files on a distribution recording medium α for issued for lease to users. What is rented is the content file, not the distribution recording medium α itself.

[0054] The system mainly includes: distribution recording medium α, on which a content file including title information "A" and data body "B" is recorded, and part of the title information "A" is missing to prevent unauthorized access to the data body "B". Authorized playback and un...

Embodiment 2

[0091] The following will refer to Figure 4 and Figure 5 A second embodiment of the present invention will be described. Figure 4 It is a block diagram of a system for preventing unauthorized playback of digital content, including a block diagram of distribution recording medium manufacturing equipment used in the system. Figure 5 It is a flow chart of the playback software used by the system.

[0092] used to prevent Figure 4 The illustrated system for unauthorized use of digital content is a system for preventing unauthorized use of content files on a distribution recording medium α that is distributed for lease to users. What is rented is the content file, not the distribution recording medium α itself.

[0093] The system mainly includes: a distribution recording medium α, on which a content file including title information "A" and data body "B" is recorded, and part of the title information "A" is missing (that is, the title information contained in the title inf...

Embodiment 3

[0132] The following will refer to Figure 7 and 8 A third embodiment of the present invention will be described. Figure 7 is a block diagram of a system for preventing unauthorized use of digital content. Figure 8 It is a flow chart of the playback software used by the system.

[0133] Figure 7 The illustrated system 300 for preventing unauthorized use of digital content is used to prevent unauthorized use of content files distributed for lease to users.

[0134] This system has: a distribution management center 310 as distribution management means for transmitting a content file including title information "A" and a data body "B" via a communication line β, and management by use; and a digital content playback device 320 capable of communicating with the distribution management center 310 via the communication line β and used for playing and reproducing content files transmitted from the distribution management center 310 . The digital content playback device here is...

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Abstract

An object of the present invention is to provide a system for preventing unauthorized use of digital content which can prevent unauthorized use of digital content and can reliably collect a charge for secondary use. Basically, a system for preventing unauthorized use of digital content has: a distributing recording medium ± on which a content file having header information "A" and a data body "B" is recorded in a state of lacking play information "A1" indispensable for playing the data body "B" included in the header information a; a management center 110 which is management means managing use of the content file on the distributing recording medium ± and can deliver the prepared play information "A1" of the header information "A" as piece data via a communication line ²; and a digital content playing device 120 which is a device used for playing the content file on the distributing recording mediuma and has a function of communicating via the communication line ² with the management center 110.

Description

technical field [0001] The present invention relates to a system for preventing unauthorized playback of digital content capable of preventing unauthorized use of digital content distributed / transmitted to users through recording media such as CDs or DVDs, Internet lines, and telephone lines. Background technique [0002] As examples of prior art, the following systems are proposed. The system mainly includes: an issued recording medium such as a CD-ROM, on which encrypted digital content is recorded; a management device, used to manage the user's fee for using the digital content; and a digital content playback device, which is composed of The distribution recording medium is obtained and can be used by a user connected to the management device through an Internet line to play digital content, wherein when the user inputs a request to play the digital content under authorization and billing conditions into the digital content playback equipment, the digital content playbac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/14G06F15/00G06Q30/00G06F21/00G06F21/10G06F21/33G06F21/60G06F21/62H04L29/06
CPCH04L63/04G06F21/10H04L2463/101H04L63/083G06Q10/10G06Q30/06G06F17/00G06F21/00
Inventor 冈本明义石田昌敬
Owner JAPAN WAVE
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