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Information processor, information processing method, and program

An information processor and data processing technology, applied in image data processing, image data processing, electrical digital data processing, etc., can solve problems such as chaos propagation

Inactive Publication Date: 2012-04-11
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even with such formalities, if the user redistributes the decrypted content through the network, the content will still be disseminated in a chaotic manner

Method used

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  • Information processor, information processing method, and program
  • Information processor, information processing method, and program
  • Information processor, information processing method, and program

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] Hereinafter, an information processor, an information processing method, and a computer program according to embodiments of the present invention will be described in detail with reference to the accompanying drawings. Descriptions are given in the following order.

[0043] 1. Design of the embodiment of the present invention

[0044] 2. Specific example of the content provision process of the server

[0045] 3. Content delivery process using CDN

[0046] 4. An example of a process of generating sub-content using a Luma key.

[0047] 5. Client content reproduction process.

[0048] 6. A specific example of the process of recording an identifier (ID) in a sub image.

[0049] 7. An example of the composition of the content encryption process.

[0050] 8. The order in which server content is generated and served.

[0051] 8-1. The order in which the content of the server is generated.

[0052] 8-2. The order in which the content of the server is provided.

[0053] ...

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PUM

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Abstract

An information processor includes a data processing portion which generates content for delivery to a client. The data processing portion generates and provides a sub-image in which identification information of a content delivery client is recorded in image data formed only of a partial area of image data and a main image in which the image signal of the sub-image area is deleted or substituted with a dummy signal to the client, generates management information in which the identification information recorded in the sub-image is associated with client information of the content provision destination, and records the management information in a storage portion.

Description

technical field [0001] The present invention relates to an information processor, an information processing method, and a computer program, and in particular, the present invention relates to an information used in a system capable of preventing fraudulent use of content and tracking the source of illegally distributed (distribution) content Processor, information processing method and program. Background technique [0002] Recently, data communication through a network such as the Internet has become widespread, and a large amount of image data, music data, and the like are actively disseminated through the network. [0003] Producers and sellers of many contents such as music data and image data have copyrights, distribution rights and the like of the contents. Accordingly, for example, if a service provider provides content from a server to users through a network, it is common to restrict usage rights so that only users with legitimate usage rights can use the content. ...

Claims

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Application Information

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IPC IPC(8): G06T1/00G06F21/10G06F21/16G06F21/62
CPCH04N21/44055H04N21/2365G06F1/00H04N21/234345H04N21/4334H04N1/387G06T1/0071H04N21/4347H04N21/4325H04N21/26258G06T1/00H04N21/8358H04N21/23476
Inventor 加藤元树上田健二朗小林义行
Owner SONY CORP
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