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Information generation device, information reproduction device, and information recording device

A technology of information generation and information recording, applied in data recording, information storage, recording signal processing, etc., can solve problems such as inability to efficiently release movies, inability to obtain release modes, etc., and achieve the effect of copyright protection

Inactive Publication Date: 2005-11-09
PIONEER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Due to this problem, the following distribution modes cannot be obtained: for example, when distributing movies, etc. with low picture quality, allowing free reproduction so that movies, etc. are widely available to viewers, and when watching movies, etc. in general , to post the same video, etc., in high picture quality, with copy restrictions
Therefore, videos, etc. cannot be distributed efficiently

Method used

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  • Information generation device, information reproduction device, and information recording device
  • Information generation device, information reproduction device, and information recording device
  • Information generation device, information reproduction device, and information recording device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0110] refer to Figures 1 to 6 , Embodiment 1 will be first described below in which the present invention is applied to the above reproduction restriction and the like during distribution of a playback-only DVD in which information is recorded.

[0111] figure 1 is a diagram showing a recording mode of information on a DVD according to Embodiment 1. Figures 2 to 4 This is a diagram showing specific contents of information recorded on a DVD. Figure 5 is a block diagram showing a schematic configuration of an information reproducing apparatus (DVD player) for reproducing information recorded on a DVD. Image 6 is a flowchart showing reproduction performed in a DVD player.

[0112] refer to Figures 1 to 3 , the recording format of information recorded on a playback-only DVD according to Embodiment 1 will first be described below.

[0113] The following description is based on the premise that this information, that is, the information indicating the country or region th...

Embodiment 2

[0184] The following will refer to Figures 7 to 14 Embodiment 2, which is another embodiment of the present invention, will be discussed.

[0185] In Embodiment 2 described below, the present invention is applied to the case of restricting the reproduction or recording of record information at the destination of an information delivery system for transmitting an image including at least image information through satellite air waves. record information.

[0186] Figure 7 is a block diagram showing a schematic configuration of an information delivery system of Embodiment 2. Figure 8 is a block diagram showing a schematic configuration of a video transmitter included in an information delivery system. Figure 9 is a diagram showing the format of recording information transmitted in the information transmission system. Figure 10 It is a diagram showing the specific content of the transmitted log information. Figure 11 is a block diagram showing a schematic configuration ...

Embodiment 3

[0309] The following will refer to Figure 15 Embodiment 3, which is another embodiment of the present invention, will be described. Figure 15 is a diagram showing a detailed configuration of an information table according to Embodiment 3.

[0310] In Embodiment 1 and Embodiment 2, the information table TB or TBa includes the first information table TB1 and the second information table TB2 (in the case of Embodiment 1), and the first information table TB1a or TB1b, and the second information table Table TB2 (in the case of Example 2). In Embodiment 3 described below, the first information table TB1 ( TB1a or TB1b ) is divided into two related tables for tamper prevention and superimposed on record information. Embodiment 3 is discussed below by way of example, in which the first information table TB1b of Embodiment 2 is divided.

[0311] The configuration and operation of the information delivery system according to Embodiment 3 are exactly the same as those of the informa...

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Abstract

An information distribution system capable of distributing information such as a movie via a network into a wide range while limiting the copy of the information appropriately. When recorded information is distributed, modification copy control information (XCI1, XCI2, XXI1, and XXI2) applied when modification processing is executed to modify the quality of the recorded information and normal copy control information (CCI1 and CCI2) applied when the modification processing is not executed are superimposed on the recorded information.

Description

technical field [0001] The technical field to which this application relates includes an information generating device, an information reproducing device, and an information recording device, and particularly relates to such a technical field, which includes: an information generating device for generating information distributed or delivered by a recording medium; an information reproducing device for reproducing the distributed or delivered information; and an information recording device for recording the distributed or delivered information on another recording medium. Background technique [0002] In recent years, a so-called DVD (Digital Versatile Disc) having a recording capacity several times larger than that of a conventional CD (Compact Disc) has been popularized. Since DVD has such a large recording capacity, the moving image information and corresponding sound information of a movie can be recorded on DVD. [0003] Generally, movies and the like that can be reco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/00G11B20/12H04N5/913
CPCG11B20/00086H04N5/913H04N2005/91328G11B20/00818
Inventor 黑田和男
Owner PIONEER CORP