Unlock instant, AI-driven research and patent intelligence for your innovation.

Manufacturing method of video CD with sequencial playing

A production method and film and television technology, applied in the fields of multimedia publications, digital TV, and DVD, can solve the problems of image disorder, entering no man's land, disturbing synchronization, etc., and achieve the effect of protecting legal rights and interests

Inactive Publication Date: 2003-06-04
ZHILIANTONG SCI & TECH DEV BEIJING
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It is mainly used to prevent analog video recorders from duplicating. Its representative is version 7.0 of McGee Company. It adds a color pulse signal to the vertical empty field in the output video signal to disturb the synchronization, so that ordinary video recorders cannot normally respond to this signal. Work
However, this approach degrades the quality of the image
[0005] 2) Image disorder
If measures are not taken in time, DVD pirated discs will be driven straight into the DVD market, as if entering no one's land

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The details of the present invention are introduced below.

[0031] The sequentially played video and video disc produced by the invention is mainly used for DVD discs. It adopts the general DVD format, divides the video and video content into multiple segments, and realizes the encryption of the video and video segments through standard CSS technology. The so-called CSS means that the original data of the DVD is encoded by CSS (Content Scrambling System), which scrambles the order of the original data. DVD files can be copied, but because the data is encoded, if you play the copied file directly, the picture will be a mess, and the sound will have a harsh crackling sound. CSS encryption is quite effective encryption method, so it is widely popular now. Simply put, CSS is a very complex irreversible calculation. Calculation is quite simple for a computer as long as there is a formula, and its key is irreversibility. For example, in the CSS restoration calculation, th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

This invention relates to mfg. of sequencial reproducing video CD disc. It includes: separation of forced reproducing vidio content into passages and recording their order, and encryption to every passage to make each video extent being corresponding with each encrypted passage. According to the order of video passage, composition is proceeded for edited forced reproducing fils combined with corresponded encrysted files. So, said invented sequencial reproducing video CD disc is mfg.

Description

technical field [0001] The invention relates to a method for making a sequentially played video disc, belonging to the technical fields of DVD, digital TV and multimedia publications. Background technique [0002] In order to prevent piracy, when formulating the digital video disc (hereinafter referred to as DVD) standard, many protection methods have been considered, mainly including area codes, encrypted sectors, image disorder, and device identification used on computer DVD hardware. code, analog encryption method, etc. [0003] 1) Analog encryption method analog anti-copy system (Analog CPS) [0004] It is mainly used to prevent analog video recorders from duplicating. Its representative is version 7.0 of McGee Company. It adds a color pulse signal to the vertical empty field in the output video signal to disturb the synchronization, so that ordinary video recorders cannot normally respond to this signal. Work. However, this approach degrades the quality of the image....

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G11B20/12H04L9/08
Inventor 卢增祥吴君鸣
Owner ZHILIANTONG SCI & TECH DEV BEIJING