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Random grain anti-fake method

A texture and computer system technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of low cost of counterfeit copying, cost asymmetry, low copying cost, etc., to get rid of the Internet and image fax query methods , Reduce equipment investment and save storage space

Inactive Publication Date: 2003-11-26
孙显林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the Chinese Invention Patent - Structural Texture Anti-counterfeiting Method (Application No.: 98116462.5) applied on August 8, 1998, all texture images in the entire coordinate area are captured and stored by means of camera or scanning, and the identification is carried out by telephone and fax , Internet display image or phone voice method for all checks, which has the following serious defects: a. The computer system has a large storage capacity; b. The query check is cumbersome; c. The set coordinate area cannot be too large so that the cost of counterfeiting is very low; d. When using voice or text to describe the texture image of the entire coordinate area, the precision is very low and very complicated, so that the counterfeiter's single copy cost is very low
Taking the currently applied fiber paper texture marking as an example, the area of ​​the set coordinate area is difficult to exceed 6cm 2 , the total number of fibers is difficult to exceed 10, and the cost of individual copying by counterfeiters is very low. Even if it is used for anti-counterfeiting of general value-added products, it is very unsafe. The texture distribution can be copied, for example, the fiber distribution can be copied by artificial embedding. , the reason why the random 2 texture can be anti-counterfeiting is that there is cost asymmetry in some random distribution processes, that is, the cost of producing a random distribution is very low for the producer, but the cost for counterfeiters to manually copy the same random distribution is very high. It is the essence of random texture anti-counterfeiting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Example 1, see Figure 1a , Figure 1b , Figure 1c , the specific steps are:

[0063] 1. Fiber paper is made by adding colored fibers in the papermaking process. The colored fibers are composed of 10 color features with obvious visual differences: red, blue, brown, green, black, blue-red double-color, red-green double-color, and red-black double-color. The diameter is 0.1mm, the fiber length is 2.0mm, 2.5mm, 3.0mm, 3.5mm and 4.0mm, etc., and the fiber density is controlled at 15-30 / cm 2 .

[0064] 2. Set the coordinate area (1) on the fiber paper, then divide the area (1) into 9 square boxes (2) and number n in turn, and set the grid coordinates (3 ), in order to prevent the colored fibers from affecting the clarity of the coordinate numbers, at least print a white ink layer (4) with a covering effect between the position of the coordinate numbers and the fiber paper;

[0065] 3. The fiber paper is attached to the product, and each product is printed with a non-con...

Embodiment 2

[0073] Example 2, see Figure 2a , Figure 2b , the specific steps are:

[0074] 1. Fiber paper is made by adding colored fibers during the papermaking process. Among the colored fibers, there are single red, single blue, single brown, single green, single black, single blue and red double-color segments, and single red-green double-color , single red and black two-color 10 kinds of color characteristics with obvious visual differences, fiber diameter 0.06mm, fiber length 2.0mm, 2.5mm, 3.0mm, 3.5mm and 4.0mm, etc., fiber density is controlled at 40-50 / cm 2 ;

[0075] 2. Set the coordinate area (1) in the fiber paper, then divide the area (1) into 9 square boxes (2) and number n in turn, and set the line coordinates (5) with an interval of 2.0mm in the box (2), The coordinate lines (6) are composed of dotted lines with an interval of 0.2 mm and a dot diameter of 0.05 mm. In order to prevent colored fibers from affecting the clarity of the coordinate numbers, at least a wh...

Embodiment 3

[0092] 1. In embodiment 1, the pattern of any fiber in any number n box is captured by imaging or scanning, and stored in the computer system together with the query code (7);

[0093] 2. Inquiry by telephone, fax, Internet, MMS mobile phone, when inquiring, input the inquiry code (7), when there is no inquiry code (7) in the computer system, the answer is: "the inquiry code does not exist, it is a counterfeit product"; the computer system When there is an inquiry code (7) in it, the computer system will provide the pattern checking of the root fiber in the n-numbered box, and if it does not match, it will be false.

[0094] 3. For the same query code, after the root fiber is queried for the first time, the computer system starts a special processing program for the root fiber, and the root fiber is judged to be invalid after an interval of 0.5 hours or 1 hour or 2 hours or several hours or days.

[0095] Analyzing this embodiment 3, relative to the above embodiment, what this...

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Abstract

The present invention discloses random grain anti-fake method. From all the grain characteristics in the coded coordinate zone, one random characteristic is taken and stored in computer system or enciphered before being printed onto the product. During inquiry, inquiry code is fed to computer system in communication mode to check the grain characteristic with the inquired grain characteristic so as to determine the truth of the product. In despite of storing only one grain characteristic in the coordinate zone, the forger must copy all the grain characteristic in the whole coordinate zone.

Description

technical field [0001] The invention discloses an anti-counterfeiting method for random textures, in particular, an anti-counterfeiting method that only takes one or a few texture distribution features in a coordinate area as anti-counterfeiting information, which can achieve the same anti-counterfeiting as a comprehensive description of the texture features of all coordinate areas Effect. Background technique [0002] In the Chinese Invention Patent - Structural Texture Anti-counterfeiting Method (Application No.: 98116462.5) applied on August 8, 1998, all texture images in the entire coordinate area are captured and stored by means of camera or scanning, and the identification is carried out by telephone and fax , Internet display image or phone voice method for all checks, which has the following serious defects: a. The computer system has a large storage capacity; b. The query check is cumbersome; c. The set coordinate area cannot be too large so that the cost of counter...

Claims

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Application Information

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Inventor 孙显林
Owner 孙显林
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