Double variant multi-parameter relative synchronous progressive increased encrypted binary anti-fake printing method

Abstract

The invention discloses a double variant multi-parameter relative synchronous progressive increased encrypted binary anti-fake printing method. According to the method, the binary anti-fake information is subjected to encryption calculation and channel encoding so as to generate a binary modulation signal; and the anti-fake information is embedded into a whole page in a sequential changing manner of the shape of an amplitude modulation mesh point in a circulation look-up table method modulation mode, so that the anti-fake information can be identified from any fragment while identifying a printed product, and thus the method can be widely used in the anti-fake field of printed products.

Description

Technical field: [0001] The invention relates to an anti-counterfeit printing technology, in particular to a double-variable multi-parameter relative synchronous incrementally increased encryption binary anti-counterfeit printing technology, which can be used for anti-counterfeiting of various printed products. Background technique: [0002] The existing relatively common anti-counterfeiting methods are as follows: The first is laser anti-counterfeiting marks, which use laser recessive ink fluorescent ink printing technology to print product logos or special identification patterns into product anti-counterfeiting labels. And the same type of product uses the same label, because the anti-counterfeiting label is easier to forge, and the fake anti-counterfeiting label is used on the counterfeit product, causing the product to be confused, so it is difficult to effectively prevent counterfeiting. The second is the password anti-counterfeiting label. The method adopted is to c...

AI Technical Summary

Problems solved by technology

[0002]The existing more common anti-counterfeiting methods are as follows: The first is laser anti-counterfeiting marks, which use laser hidden ink fluorescent ink printing technology to mark the product The anti-counterfeit label of the product is printed with the emblem or a special identification pattern, and the same kind of label is used for the same type of product, because the anti-counterfeit label is easier to forge, and the forged anti-counterfeit label is used on the counterfeit product, causing the product to be damaged. True and false are confused, so it is difficult to effectively prevent counterfeiting

The second is the password anti-counterfeiting label. The method adopted is to compile a set of numbers for each product, and the codes of each product are different. The numbers are printed on the labels and covered, and the numbers are stored Into the computer database that can be inquired by consumers. When consumers purchase products, they input the numbers on the logo into the computer database through telephone or network access computer for comparison and identification. The same is true, and the difference is false. The method is simple and easy to identify. It is not easy to forge, but in actual use, because the coded data is uniformly generated by the computer and printed on the label

In summary, the existing anti-counterfeiting methods have certain shortcomings, and thus cannot fundamentally prevent counterfeit products.

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