Content distribution/protecing method and apparatus

A content and specific location technology, applied in the field of content transmission and protection, can solve the problem that different content is difficult to reproduce

Inactive Publication Date: 2003-11-19
PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, it is difficult to realize reproduction in the same terminal for different contents provided by different contents providers
In other words, the same protected content cannot be reproduced under different IPMP systems

Method used

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  • Content distribution/protecing method and apparatus
  • Content distribution/protecing method and apparatus
  • Content distribution/protecing method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

example

[0075] Local: Inside or around an end system.

[0076] External: external to the specified end system (http:, ftp:)

[0077] The identification factor of IPMP tools consists of two parts: location type and specific location. The location type is any one of the following. The corresponding relationship between location types and specific locations is shown in Table 2 below.

[0078] location type

specific location

local

N / A

around

N / A

Capable of remote downloading

Website (http, ftp...)

Can't download remotely

Remote location for Java servlets etc.

Intra-content data flow

Include the IPMP tool itself in this section

...

...

[0079] Wherein, for example, local means located in the receiving terminal. Perimeter means within a certain machine in the main network including the receiving terminal. The ability to perform remote download means that the interpretation software can be downloaded f...

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PUM

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Abstract

Content distribution / protecing method and apparatus. A method for appropriately defining standards for implementing an MPEG-n intellectual property management and protection (IPMP) system introduces IPMP Tool Information located at the beginning of the content stream, and an IPMP Tool management function as a pre-processing module located at the start of the content decoder, and retrieves IPMP Tools based on the IPMP Tool Information. To improve security and enable interoperability between terminals in different IPMP systems, a two-layer security structure and user authentication output format are further defined. Implementation on terminals of different complexity is enabled by further defining different profiles for IPMP Tool retrieval.

Description

technical field [0001] The present invention relates to the transfer and protection of content, especially the application program that the protected content can be utilized by different IPMP systems and the same content can be protected by different IPMP systems. Background technique [0002] With the advancement of communication technology, people can deliver multimedia data or content to any desired place at any convenient time, and the requirements for content delivery are getting higher and higher. Information that enables users to enjoy the content easily and efficiently while being satisfied with its convenience and flexibility. On the other hand, although the owner of the content also hopes to satisfy the customer's request, at the same time, he is worried about his property being used illegally. Therefore, the contradiction between these two aspects must be resolved. [0003] Now, various protection technologies for protecting contents such as data encryption, ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T1/00G06F13/00G06F21/10G09C5/00H04L9/08H04L9/16H04N1/387H04N7/08H04N7/081H04N7/16H04N7/167H04N21/258H04N21/835
CPCH04N7/1675H04N21/2541H04N21/8352H04N21/8358H04N21/235H04N21/435H04N21/835H04N21/4627H04N21/8193H04N21/2347
Inventor 申省梅吉明妹尾孝宪小暮拓世
Owner PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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