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Method and system for limiting content to be redistributed

A content and information restriction technology, applied in the field of redistribution and system for restricting content, can solve the problem that communication equipment cannot be redistributed

Inactive Publication Date: 2004-06-30
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, when the content to which such information is added is once downloaded to the communication device, the communication device cannot distribute the content any more.
[0005] However, at present, a large number of communication devices are not equipped to handle redistribution restriction information added to downloaded content; transitioning to use devices equipped with such functions, especially in the case of mobile phone models that are already widely used, is not possible. Avoidance will be a step-by-step process
[0006] During this transition period, the problem remains that communication devices not equipped to handle redistribution restriction information added to downloaded content will continue to be able to redistribute such content

Method used

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  • Method and system for limiting content to be redistributed
  • Method and system for limiting content to be redistributed
  • Method and system for limiting content to be redistributed

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0031] 1. Structure

[0032] Structure of Communication System 1

[0033] figure 1 is a block diagram illustrating an example of the structure of the communication system 1 according to the first embodiment of the present invention.

[0034] The mobile packet communication network 40 is a communication network that provides packet communication services to the communication terminals 50 served by the mobile packet communication network 40 . The mobile packet communication network 40 includes a gateway switching station 41 and a base station 42 . A plurality of base stations 42 are installed in the communication service area of ​​the mobile packet communication network 40 . When located within the wireless cell covered by the base station 42 , the communication terminal 50 can perform wireless communication with the base station 42 . The gateway switching station 41 relays communication between the base station 42 and the gateway server 30 .

[0035] The gateway server 30 ...

no. 2 example

[0071] Next, a second preferred embodiment according to the present invention will be described. In the second embodiment, communication terminal 50' generates content such as photos, and assigns redistribution restriction information to the generated content. In this case, the communication terminal 50' adds this content to an e-mail to send to the communication terminal 50.

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PUM

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Abstract

A content server (10), in transmitting content appended with redistribution restriction information to a communication terminal (50), determines whether communication terminal (50) has a redistribution restriction function on the basis of identification data contained in a user agent header contained in a HTTP message transmitted from communication terminal (50). When the determination is affirmative, content server (10) transmits to communication terminal (50) the content via the Internet (20), gateway server (30), and mobile packet communication network (40).

Description

technical field [0001] The present invention relates to a method and system for transmitting content through a communication device. Background technique [0002] Now, there are systems in place which enable a communication device such as a personal computer to download various contents such as moving image data, music data, etc. stored on a server through a communication medium such as the Internet. In order to access, download and use the content, the user typically has to pay the data provider hosting the server. [0003] However, once the user of the communication device downloads the content for a fee, the user can distribute the content using wired communication or wireless communication such as IrDA without routing through the original content server. In this way, downloaded content that should be paid can be reproduced without paying. The problem with this kind of distribution is that it may infringe copyright and avoid paying for usage. [0004] Japanese Patent A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/14G06F13/00G06F21/00G06F21/10G06F21/33G06F21/60G06F21/62G06Q50/00G06Q50/10
CPCG06F21/10
Inventor 永井理子前田义晃猪俣俊洋近藤隆
Owner NTT DOCOMO INC