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Content transmitting apparatus and method, and content receiving apparatus and method

A technology for transmission equipment and content reception, applied in program/content distribution protection, TV, color TV, etc., can solve problems such as damage to user interests, and achieve high practical value, copyright protection, and safe copy control effects

Active Publication Date: 2010-01-20
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the interests of users are damaged

Method used

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  • Content transmitting apparatus and method, and content receiving apparatus and method
  • Content transmitting apparatus and method, and content receiving apparatus and method
  • Content transmitting apparatus and method, and content receiving apparatus and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Embodiments of the invention are explained in more detail below with reference to the drawings.

[0024] figure 1 is an external view of a content reproduction device 10 as an example of a content delivery device according to the present invention and a content recording device 20 as an example of a content reception device according to the present invention. Here, an appearance in which the content reproducing device 10 and the content recording device 20 are connected by a high-definition multimedia interface (HDMI) cable 31 is shown.

[0025] The content reproduction device 10 is a DVD player or the like. Here, the content reproduction device 10 reproduces the music content recorded in the DVD 30 and digitally outputs the music content to the content recording device 20 through the HDMI cable 31 .

[0026] The content recording device 20 is a CD recorder and player or the like having recording and reproduction functions. And, the content recording device 20 (i) re...

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PUM

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Abstract

A content transmitting apparatus (10) executes copy control of content more securely than conventional apparatuses, and counts the number of copies correctly even if the content transfer is interrupted. The apparatus (10) transmitts content that is digital copyrighted work including a plurality of content blocks. It comprises: a content reproducing unit (11) which reads out content (1) and control information from a DVD (30); a control unit (12) which transmits in parallel with each of content block copy control information indicating copy permission of the content, content identification information identifying content, and the content status information indicating status of the content blocks in the overall content; a data building unit (15); and a transmission unit (16).

Description

technical field [0001] The present invention relates to a content transmission device and method and a content reception device and method, and more particularly, to a content transmission device and method and a content reception device and method for duplicating digitized copyrighted works. Background technique [0002] With the advent of mass recording media such as DVDs, by reproducing recording media in which contents such as videos and music are recorded using a reproduction tool such as a DVD player, videos and music can be enjoyed for a long time. However, from the standpoint of copyright protection, it is necessary to restrict the act of copying the above-mentioned contents, such as digital data, into other recording media such as CD-R. [0003] Conventionally, as techniques related to the above-mentioned content duplication control, various methods have been proposed (for example, "recording reproduction system" disclosed in Japanese Laid-Open Publication No. 2001-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B20/00G11B20/12H04N5/91G11B20/10
CPCG11B2220/20G11B20/00746G11B20/00086G06F21/10G11B2020/10972G11B20/00768G11B20/12G11B20/00G11B20/10
Inventor 江岛直树
Owner PANASONIC CORP