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Duplicating control method, duplicating control device, recording medium and program

A technology for copying control and equipment, applied in the direction of data recording, recording information storage, recording carrier parts, etc.

Inactive Publication Date: 2006-07-12
PIONEER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Conversely, there is a problem with recording the title part of the content whose copying is prohibited

Method used

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  • Duplicating control method, duplicating control device, recording medium and program
  • Duplicating control method, duplicating control device, recording medium and program
  • Duplicating control method, duplicating control device, recording medium and program

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no. 1 example

[0071] A copy control method according to a first embodiment of the present invention will be described below with reference to FIGS. 1 to 7 . It should be noted that, in this embodiment, image contents are used as contents composed of digital information, for example, but the present invention can be applied to all contents composed of digital information, such as music.

[0072] FIG. 1 shows the data layout structure of an optical disc using the copy control method according to the present invention.

[0073] The disc DK contains a plurality of contents as video / audio information. As shown in FIG. 1, the optical disc DK has a user data area and a lead-out area. In the user data area, video / audio information and navigation information related to the video / audio information are alternately recorded. Furthermore, in the header of the user data area, an area for recording a file system representing a hierarchical structure of navigation information is provided. In addition, a...

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PUM

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Abstract

The present invention is directed to a duplication controlling method for controlling duplication by inserting duplication-related control information into contents comprising digital information. The contents are delivered together with a table containing the change positions of the control information for a predetermined range of the contents and the contents of the control information which varies at each change position.

Description

technical field [0001] The present invention relates to an electronic watermark embedding method and the like for embedding an electronic watermark to control duplication of digital information content. Background technique [0002] Now, digital television distribution has been realized, and thus transmission of images is widely performed by image digital signals. Also, VCRs are widely used to record images as digital data on optical discs and magnetic tapes. If an image can be recorded as digital data, it will be possible to reproduce the image without deteriorating the quality of the image. Therefore, from the viewpoint of copyright, it is necessary to restrict the reproduction of images. [0003] However, copy control information currently used in DVDs is recorded in a sector ID area in clear form and can be easily changed. For this reason, a technique of embedding an electronic watermark into content has been developed. [0004] For example, European Patent Applicati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/913G11B20/10G06F12/14G06F21/10G11B27/00H04N1/387H04N5/85H04N5/91H04N9/804
CPCH04N5/913H04N5/85H04N9/8042H04N2005/91335
Inventor 黑田和男
Owner PIONEER CORP