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Network screen coding control method capable of recording mass data on paper

A technology for recording data and coding control, applied in the field of screen coding, which can solve problems such as loss and pollution of information

Active Publication Date: 2005-03-23
顾泽苍
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] Another object of the present invention is to solve the problem of information loss caused by local pollution on paper

Method used

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  • Network screen coding control method capable of recording mass data on paper
  • Network screen coding control method capable of recording mass data on paper
  • Network screen coding control method capable of recording mass data on paper

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Embodiment Construction

[0070] The screen coding control method of the present invention, which can record a large amount of data on paper, will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0071] The present invention proposes a method of passing plain paper through figure 1 The embedding device and the reading device realize the method for storing a large amount of data on paper, including: in the embedding device, the computer data contains data codes such as characters, numbers, letters, characters, etc., which are converted into a data code according to the difference of the data code. A graphic code called screen code; then for any key k∈K and encryption function ￠(k, c), the value or position r∈R of the screen code is

[0072] R×K→C r→￠(k, c)

[0073] The calculation realizes the encryption result of the screen code; the computer data is recorded and encrypted on the paper output by the printer.

[0074] The en...

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Abstract

The invention relates to a net screen coding control method which can record plenty of data on paper. It includes net screen code embedding device which is composed by computer data process module, net screen code embedding module, key encryption module and printout module; net screen code reading device which is made up with scan input module, key decryption module, net screen code identification module and data storage module. The two devices make a system which can recode plenty of data on paper. Adopting the invention, plenty of data storage and net screen code which can recode plenty of data is realized through printing on paper or press. And confidential files' encryption and decryption is realized by using electronic files' method. Under condition of same area with two dimension bar code, the code method can record nearly ten times of information than two dimension bar and there is no limitation on occupied space and Chinese character record. It also resolves the problem of information loss because of local pollution. Data information can be embedded into image to resolve image quality destruction.

Description

technical field [0001] The invention relates to a computer image coding technology, in particular to screen coding using plain paper as a mass data storage medium. Background technique [0002] In recent years, computer technology has developed rapidly, and as a medium for recording data information, it has developed from the initial magnetic medium to optical medium, storage medium, etc. But plain paper as a medium for storing large amounts of data is rarely mentioned. [0003] In addition, as a simple method of supermarket settlement at first, a one-dimensional bar code was proposed by Harvard University in the United States in 1932, and it has been widely used until now. In the late 1980s, in order to meet the needs of industries such as gemstones, semiconductors, pharmaceuticals, and mechanical parts, Code49 was developed by Intermec in 1989, and two-dimensional barcodes were born. After that, DataMatrix, MaxiCode, ArrayTag, etc. appeared one after another. In Japan, C...

Claims

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Application Information

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IPC IPC(8): G06T1/00G06K1/20G06K9/00G06K9/62G06K17/00G06T1/60G06T5/00G09C1/00H04N1/387H04N1/40
Inventor 顾泽苍
Owner 顾泽苍
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