CN103106447A - Single parameter binary variable circulation encryption anti-counterfeiting information storage trademark - Google Patents

Single parameter binary variable circulation encryption anti-counterfeiting information storage trademark Download PDF

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CN103106447A
CN103106447A CN2013100231196A CN201310023119A CN103106447A CN 103106447 A CN103106447 A CN 103106447A CN 2013100231196 A CN2013100231196 A CN 2013100231196A CN 201310023119 A CN201310023119 A CN 201310023119A CN 103106447 A CN103106447 A CN 103106447A
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binary
binary system
counterfeiting information
group
trade mark
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张立君
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Beijing Institute of Graphic Communication
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Beijing Institute of Graphic Communication
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Abstract

A single parameter binary variable circulation encryption anti-counterfeiting information storage trademark can enable binary anti-counterfeiting information to be generated into binary modulation signals through binary variable circulation and channel coding, and enable the anti-counterfeiting information to be embedded into a whole trademark page through ordered changing of conductivity of amplitude modulation dots in a circulation table look-up method mode. The anti-counterfeiting information can be identified from any fragment during trademark identification, and the single parameter binary variable circulation encryption anti-counterfeiting information storage trademark can be applied to all kinds of anti-counterfeiting trademarks.

Description

One-parameter binary-encryption variable circulation encryption anti-fake information storage trademark
Art：
The present invention relates to a kind of anti-false trademark, particularly a kind of One-parameter binary-encryption variable circulation encryption anti-fake information storage trademark, binary system encryption anti-fake information can be stored on the trade mark page and realize the false proof of trade mark by the trade mark, the trade mark can be used for extensive stock it is false proof in.
Background technology：
Anti-false trademark, also known as antifalsification label, anti-counterfeiting mark, anti-false sign, anti-fake label, are a kind of proof labels discerned the false from the genuine, prevent personation, are mark true and false, that distinguish marketing quality quality of the people for distinguishing merchandise resources during commodity circulation.Trademark anti-counterfeit is related to businessman, client and market safety, is related to protection businessman and the interests of client.The trade mark of China is audaciously innovated; employ laser anti-counterfeit, core micropore are false proof, invisible graph is false proof, magnetic ink is false proof, microfilm of characters is false proof, indicia distribution is false proof, light carving is false proof etc.; but false proof is high-tech trial of strength with struggle that is faking; advanced anti-counterfeiting technology has certain ageing again; so; trade mark anti-fake technique must constantly be lifted; could be false proof with being maintained the leading position forever in faking, this is also the basic assurance for protecting the interests of businessman and client to maintain commodity circulation safety.
The content of the invention:
In order to improve the reliability and security of trademark anti-counterfeit, the present invention is improved existing trade mark anti-fake technique for the deficiency that existing trademark anti-counterfeit is present, propose a kind of anti-counterfeiting information storage trade mark, the trade mark passes through the change to amplitude electric conductivity in brand printing, encryption anti-fake information is embedded on the whole trade mark page in binary system coded signal form, encryption anti-fake information can be recognized in any one fragment in brand recognition, therefore with very strong disguised and crush resistance.
The technical solution adopted for the present invention to solve the technical problems is：
Anti-counterfeiting information stores trade mark, is made up of trade mark page paper, the amplitude being printed on trade mark page paper, the horizontal scanning line being printed on trade mark page paper, the column scan line being printed on trade mark page paper, the image and word on trade mark page paper are made up of amplitude,
According to the binary system encryption anti-fake information of storage, a part of amplitude on trade mark page paper is formed by electrically conductive ink printing, another part amplitude on trade mark page paper is formed by dielectric ink printing, and the horizontal scanning line and column scan line on trade mark page paper are formed by the printing of electrically conducting transparent ink
The horizontal scanning line being printed on trade mark page paper has N bars, the column scan line being printed on trade mark page paper has M bars, the amplitude being printed on trade mark page paper is divided into N rows M row on trade mark paper, amplitude is neat arranged in arrays on trade mark page paper paper, i is allowed to take 1 to arrive N, j is allowed to take 1 to arrive M, j-th strip column scan line on trade mark page paper is electrically connected with the basal surface of each amplitude of the jth row on trade mark page paper, i-th horizontal scanning line on trade mark page paper is electrically connected with the upper surface of each amplitude of the i-th row on trade mark page paper
When the binary message for needing to store the trade mark page is read, the 1st article on trade mark page paper is set to high level successively to the N articles horizontal scanning line,
When the 1st article of horizontal scanning line on trade mark page paper is set to high level, the binary message of the 1st row storage on trade mark page paper is exported with 0,1 code form from the 1st bar of column scan line to the M bars column scan line, the amplitude that the 1st row on trade mark page paper is printed by electrically conductive ink exports binary message 1, the amplitude that the 1st row on trade mark page paper is printed by dielectric ink exports binary message 0, above-mentioned readout is repeated to other rows on trade mark page paper
In order to which the encryption for realizing trademark anti-counterfeit information is stored, processing is digitized to image false-proof information and character anti-counterfeiting information first, utilize image false-proof information and the binary system anti-counterfeiting information table of 8 one group of character anti-counterfeiting information generation, to prevent from producing information spillover in ciphering process, each 8 one group of binary system anti-counterfeiting information in binary system anti-counterfeiting information table are expanded into 32 one group of binary system anti-counterfeiting information, generate high 24 be all 0 32 one group of binary system anti-counterfeiting information tables, i-th group of 32 binary system anti-counterfeiting information in 32 one group of binary system anti-counterfeiting information tables are denoted as
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, i-th group of 32 binary system encryption anti-fake information in 32 one group of binary system encryption anti-fake information tables are denoted as HiI is the positive integer more than 0, binary system encryption parameter is denoted as C, encryption parameter C is the binary system positive integer of 0≤C≤256, binary system encryption variables are denoted as q, j, d, e, f, g, h, r and p, and encryption variables q, j, d, e, f, g, h, r and p are 0 to 256 binary system positive integer, and binary operator control variable is denoted as k, binary operator controls the binary system positive integer that variable k is 0≤k≤7, operator
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Using+,-, ×, four kinds of operators, binary operator control variable k=0 when
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Be respectively defined as+, × ,+,+,-, × ,+, ×, during binary operator control variable k=2
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Be respectively defined as-, × ,+,-, × ,-,+, ×, during binary operator control variable k=4
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Be respectively defined as+, × ,-, × ,+,-,+, ×, during binary operator control variable k=5
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Be respectively defined as × ,+, × ,-,+,+,-, ×, during binary operator control variable k=6
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Be respectively defined as × ,+,+,-, × ,+,+, ×, during binary operator control variable k=7
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, binary variable circulation cryptographic calculation is defined as H during binary operator control variable k=7i=
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C, setting encryption parameter C initial value, setting encryption variables q, j, d, e, f, g, h, r and p initial value set initial value that binary operator controls variable k as k=0, sets 32 binary system anti-counterfeiting information in 32 one group of binary system anti-counterfeiting information tablesPosition control variable i=1, setting 32 one group of binary system encryption anti-fake information tables in 32 binary system encryption anti-fake information HiPosition control variable i=1, it is right
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Carry out binary variable circulation cryptographic calculation, generation 32 one group of binary system encryption anti-fake information tables corresponding with 32 one group of binary system anti-counterfeiting information tables, processing is digitized to amplitude in label printing, amplitude is set to two kinds, the amplitude wherein printed by dielectric ink is defined as numeral 0, the amplitude printed by electrically conductive ink is defined as numeral 1, modulate the printing process of the amplitude on the trade mark page by circulating look-up table using 32 one group of binary system encryption anti-fake information of generation during label printing, the regular electric conductivity according to above two amplitude of amplitude on the trade mark page is changed by selecting dielectric ink and electrically conductive ink to print amplitude, adjacent 32 amplitudes constitute one group of 32 binary message on the trade mark page after modulation, so that carrying anti-counterfeiting information by the change of amplitude electric conductivity on the trade mark page, and the anti-counterfeiting information is embedded in whole trade mark page site, realize trademark anti-counterfeit, pass through non-obvious the embedded extractible anti-counterfeiting information in the trade mark page, valid certificates can be provided for true trade mark, there is stronger anti-forgery ability simultaneously.
To solve above-mentioned technical problem, processing is digitized to image false-proof information and character anti-counterfeiting information first, the binary system anti-counterfeiting information table of 8 one group of generation, each 8 one group of binary system anti-counterfeiting information in binary system anti-counterfeiting information table are expanded into 32 one group of binary system anti-counterfeiting information, generate high 24 be all 0 32 one group of binary system anti-counterfeiting information tables, binary variable circulation cryptographic calculation is carried out to each 32 binary system anti-counterfeiting information in 32 one group of binary system anti-counterfeiting information tables, the binary system encryption anti-fake information table of 32 one group of generation, pass through channel coding using 32 binary system encryption anti-fake informations in binary system encryption anti-fake information table, 32 one group of binary modulated signal of the generation with error detecting and error correcting function, channel coding can use loop coding, convolutional encoding or Turbo coding diversified forms, picture signal is adjusted to be handled by rasterizing trade mark page original continuous（RIP）Halftoning hybrid screening picture signal is exported with hybrid screening, including amplitude and FM screened image signal, the electric conductivity of amplitude in hybrid screening picture signal is modulated using circulation look-up table modulation system using 32 one group of binary modulated signals of generation, make the electric conductivity of amplitude according to dielectric ink amplitude and electrically conductive ink amplitude is regular changes, adjacent 32 amplitudes in hybrid screening picture signal are made to carry 32 binary system anti-counterfeiting information by the change of electric conductivity, so as to generate the hybrid screening picture signal of the embedded anti-counterfeiting information in whole trade mark page site, realize the false proof of trade mark.
When extracting anti-counterfeiting information, trade mark page site electric conductivity signal is gathered first, by the identification of the electric conductivity to amplitude, differentiate the electric conductivity of amplitude, extract the electric conductivity information of amplitude, demodulate the electric conductivity information of trade mark page amplitude, the binary modulated signal of 32 one group of output, channel decoding is carried out to 32 one group of binary modulated signal of demodulation output, generation binary system decryption anti-counterfeiting information table after channel decoding, decrypts i-th group of 32 binary message in anti-counterfeiting information table by binary system and is denoted as Mi。
Binary system is decrypted into 32 binary message M in anti-counterfeiting information tableiPosition control variable i initial value design be i=1, initial value when setting encryption parameter C initial value as encryption, initial value when setting encryption variables q, j, d, e, f, g, h, r and p initial value as encryption, it is k=0 that binary operator, which controls variable k initial value design, by binary variable circulation ciphering process, it is M that binary operator, which controls decryption computing during variable k=0,i=
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C, first M from binary system decryption anti-counterfeiting information table1Start, each 32 binary message M in anti-counterfeiting information table are decrypted to binary systemiCorresponding decryption computing is carried out, binary system anti-counterfeiting information is solved
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, generate high 24 be all 0 32 one group of binary system anti-counterfeiting information tables, remove high 24, recover 8 one group of binary system anti-counterfeiting information table of generation, recover anti-counterfeiting signal and simultaneously export anti-counterfeiting information.
Brief description of the drawings
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 is the overall structure figure of the present invention.
Fig. 2 is A-A sectional views of the present invention.
Fig. 3 loads anti-counterfeiting information flow chart.
Fig. 4 extracts anti-counterfeiting information flow chart.
Embodiment
As in Fig. 1 and Fig. 2, anti-fake information storage trademark, it is made up of trade mark page paper 7-1, amplitude 6-1 to the 6-150 being printed on trade mark page paper 7-1, horizontal scanning line 1-1 to the 1-15 being printed on trade mark page paper 7-1, column scan line 2-1 to the 2-10 being printed on trade mark page paper 7-1, image and word on trade mark page paper 7-1 are made up of amplitude 6-1 to 6-150
According to storage binary system encryption anti-fake information, a part of amplitude on trade mark page paper 7-1 is formed by electrically conductive ink printing, another part amplitude on trade mark page paper 7-1 is formed by dielectric ink printing, horizontal scanning line 1-1 to 1-15 and column scan line 2-1 to 2-10 on trade mark page paper 7-1 are formed by the printing of electrically conducting transparent ink
In Fig. 1, the dark amplitude on trade mark page paper 7-1 is formed by electrically conductive ink printing, and the light amplitude on trade mark page paper 7-1 is formed by dielectric ink printing,
The amplitude being printed on trade mark page paper 7-1 is divided into 15 rows 10 on trade mark paper and arranged, amplitude 6-1 to 6-150 is neat arranged in arrays on trade mark page paper 7-1, i is allowed to take 1 to 15, j is allowed to take 1 to 10, j-th strip column scan line on trade mark page paper 7-1 is electrically connected with the basal surface of each amplitude of the jth row on trade mark page paper 7-1, i-th horizontal scanning line on trade mark page paper 7-1 is electrically connected with the upper surface of each amplitude of the i-th row on trade mark page paper 7-1
When the binary system encryption anti-fake information for needing to store the trade mark page is read, the 1st article of horizontal scanning line on trade mark page paper 7-1 is set to high level successively to the 15th article of horizontal scanning line,
When the 1st article of horizontal scanning line 1-1 on trade mark page paper 7-1 is set to high level, the binary system encryption anti-fake information of the 1st row storage on trade mark page paper 7-1 is with 0, 1 code form is exported from the 1st bar of column scan line to the 10th bar of column scan line, the 1st row on trade mark page paper 7-1 exports binary message 1 by electrically conductive ink printing into amplitude, the 1st row on trade mark page paper 7-1 exports binary message 0 by dielectric ink printing into amplitude, therefore the binary system encryption anti-fake information 1100001000 that the 1st row is read, above-mentioned readout is repeated to other rows on trade mark page paper 7-1.
In loading anti-counterfeiting information flow chart 3, original anti-counterfeiting information（Image, word）It is digitized into processing, the binary system anti-counterfeiting information table of 8 one group of generation, 8 one group of binary messages in binary system anti-counterfeiting information table are expanded into 32 one group of binary messages, generate high 24 be all 0 32 one group of binary system anti-counterfeiting information tables, i-th group of 32 binary message in 32 one group of binary system anti-counterfeiting information tables are denoted as
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, i is the positive integer more than 0, from first 32 binary system encryption anti-fake information in 32 one group of binary system anti-counterfeiting information tables
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Start, to each 32 binary system anti-counterfeiting information in 32 one group of binary system anti-counterfeiting information tablesCarry out binary variable circulation cryptographic calculation, generation 32 one group of binary system encryption anti-fake information tables corresponding with 32 one group of binary system anti-counterfeiting information tables, processing is digitized to amplitude in label printing, amplitude is set to two kinds, the amplitude wherein printed by dielectric ink is defined as numeral 0, the amplitude printed by electrically conductive ink is defined as numeral 1, modulate the printing process of the amplitude on the trade mark page by circulating look-up table using 32 one group of binary system encryption anti-fake information of generation during label printing, the regular electric conductivity according to above two amplitude of amplitude on the trade mark page is changed by selecting dielectric ink and electrically conductive ink to print amplitude, adjacent 32 amplitudes constitute one group of 32 binary message on the trade mark page after modulation, so that carrying anti-counterfeiting information by the change of amplitude electric conductivity on the trade mark page, and the anti-counterfeiting information is embedded in whole trade mark page site, realize that trademark anti-counterfeit prints, pass through non-obvious the embedded extractible anti-counterfeiting information in the trade mark page, realize trademark anti-counterfeit.
In anti-counterfeiting information flow chart 4 is extracted, when extracting anti-counterfeiting information, the electric conductivity signal of trade mark page halftone dot image is gathered first, by the electric conductivity identification to amplitude, differentiate the electric conductivity of amplitude, extract the electric conductivity information of amplitude, demodulate the electric conductivity information of trade mark page amplitude, the binary modulated signal of 32 one group of output, channel decoding is carried out to 32 one group of binary modulated signal of demodulation output, generation binary system decryption anti-counterfeiting information table after channel decoding.
The binary system generated after decoding is decrypted into 32 binary message M in anti-counterfeiting information tableiPosition control variable i initial value design be i=1, initial value when setting encryption parameter C initial value as encryption, initial value when setting encryption variables q initial value as encryption, it is k=0 that binary operator, which controls variable k initial value design, first M from the binary system decryption anti-counterfeiting information table of generation1Start, each 32 binary message M in anti-counterfeiting information table are decrypted to binary systemiComputing is decrypted, binary system anti-counterfeiting information is solved
Figure 287465DEST_PATH_IMAGE001
, generate high 24 be all 0 32 one group of binary system anti-counterfeiting information tables, remove high 24, recover 8 one group of binary system anti-counterfeiting information table of generation, recover anti-counterfeiting signal and simultaneously export anti-counterfeiting information.

Claims (1)

1. a kind of generate binary modulated signal by anti-counterfeiting information by cryptographic calculation and channel coding, and by circulating the One-parameter binary-encryption variable circulation encryption anti-fake information storage trademark that anti-counterfeiting information is embedded in full page by tabling look-up modulation mode,It is characterized in that：Anti-counterfeiting information stores trade mark, it is made up of trade mark page paper, the amplitude being printed on trade mark page paper, the horizontal scanning line being printed on trade mark page paper, the column scan line being printed on trade mark page paper, according to the binary system encryption anti-fake information of storage, a part of amplitude on trade mark page paper is formed by electrically conductive ink printing, another part amplitude on trade mark page paper is formed by dielectric ink printing, horizontal scanning line and column scan line on trade mark page paper are formed by the printing of electrically conducting transparent ink
In order to which the encryption for realizing trademark anti-counterfeit information is stored, processing is digitized to image false-proof information and character anti-counterfeiting information first, utilize image false-proof information and the binary system anti-counterfeiting information table of 8 one group of character anti-counterfeiting information generation, to prevent from producing information spillover in ciphering process, each 8 one group of binary system anti-counterfeiting information in binary system anti-counterfeiting information table are expanded into 32 one group of binary system anti-counterfeiting information, generate high 24 be all 0 32 one group of binary system anti-counterfeiting information tables, i-th group of 32 binary system anti-counterfeiting information in 32 one group of binary system anti-counterfeiting information tables are denoted as
Figure 2013100231196100001DEST_PATH_IMAGE001
, i-th group of 32 binary system encryption anti-fake information in 32 one group of binary system encryption anti-fake information tables are denoted as HiI is the positive integer more than 0, binary system encryption parameter is denoted as C, encryption parameter C is the binary system positive integer of 0≤C≤256, binary system encryption variables are denoted as q, j, d, e, f, g, h, r and p, and encryption variables q, j, d, e, f, g, h, r and p are 0 to 256 binary system positive integer, and binary operator control variable is denoted as k, binary operator controls the binary system positive integer that variable k is 0≤k≤7, operator
Figure 2013100231196100001DEST_PATH_IMAGE002
Figure 2013100231196100001DEST_PATH_IMAGE003
Figure 2013100231196100001DEST_PATH_IMAGE005
Figure 2013100231196100001DEST_PATH_IMAGE006
Figure 2013100231196100001DEST_PATH_IMAGE008
Figure 2013100231196100001DEST_PATH_IMAGE009
Using+,-, ×, four kinds of operators, binary operator control variable k=0 when
Figure 380934DEST_PATH_IMAGE002
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Be respectively defined as-,+, × ,+, × ,-, × ,+, during binary operator control variable k=1
Figure 859265DEST_PATH_IMAGE002
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Be respectively defined as+, × ,+,+,-, × ,+, ×, during binary operator control variable k=2
Figure 292857DEST_PATH_IMAGE002
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Figure 377805DEST_PATH_IMAGE004
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Be respectively defined as-, × ,+,+, × ,-,+,-, during binary operator control variable k=3
Figure 708872DEST_PATH_IMAGE002
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Figure 110214DEST_PATH_IMAGE004
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Figure 231208DEST_PATH_IMAGE007
Figure 179572DEST_PATH_IMAGE008
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Be respectively defined as-, × ,+,-, × ,-,+, ×, during binary operator control variable k=4
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Be respectively defined as+, × ,-, × ,+,-,+, ×, during binary operator control variable k=5
Figure 597358DEST_PATH_IMAGE002
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Be respectively defined as × ,+, × ,-,+,+,-, ×, during binary operator control variable k=6
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Be respectively defined as × ,+,+,-, × ,+,+, ×, during binary operator control variable k=7
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Be respectively defined as+, ×, × ,-,+,-,-, ×, binary variable circulation cryptographic calculation is defined as H during binary operator control variable k=0i=
Figure 2013100231196100001DEST_PATH_IMAGE010
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C
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Figure 2013100231196100001DEST_PATH_IMAGE011
Figure 410473DEST_PATH_IMAGE004
C
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C
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C
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CC
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C, binary variable circulation cryptographic calculation is defined as H during binary operator control variable k=1i=C
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C
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Figure 2013100231196100001DEST_PATH_IMAGE012
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C
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C
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C
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CC, binary variable circulation cryptographic calculation is defined as H during binary operator control variable k=2i=CC
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Figure 82542DEST_PATH_IMAGE012
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C
Figure 2013100231196100001DEST_PATH_IMAGE013
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C
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C
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C
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C, binary variable circulation cryptographic calculation is defined as H during binary operator control variable k=3i=C
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C
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C
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C
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Figure 2013100231196100001DEST_PATH_IMAGE014
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CC
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C, binary variable circulation cryptographic calculation is defined as H during binary operator control variable k=4i=C
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C
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CC
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C
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C
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C, binary variable circulation cryptographic calculation is defined as H during binary operator control variable k=5i=C
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C
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C
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C
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C
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C
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C, binary variable circulation cryptographic calculation is defined as H during binary operator control variable k=6i=C
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CC
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CC
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C
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C
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, binary variable circulation cryptographic calculation is defined as H during binary operator control variable k=7i=
Figure 348746DEST_PATH_IMAGE018
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C
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C
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C
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C
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C
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C
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C, setting encryption parameter C initial value, setting encryption variables q, j, d, e, f, g, h, r and p initial value set initial value that binary operator controls variable k as k=0, sets 32 binary system anti-counterfeiting information in 32 one group of binary system anti-counterfeiting information tablesPosition control variable i=1, setting 32 one group of binary system encryption anti-fake information tables in 32 binary system encryption anti-fake information HiPosition control variable i=1, it is right
Figure 443500DEST_PATH_IMAGE019
Carry out H1=
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C
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C
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C
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C
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C
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C
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C binary variable circulation cryptographic calculations（Wherein k=0）, generate first binary system encryption anti-fake information H in 32 one group of binary system encryption anti-fake information table1, it is right
Figure 912678DEST_PATH_IMAGE019
Carry out H1=
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C
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CC
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CC
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C
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I+1, q+1, j+1, d+1, e+1, f+1, g+1, h+1, r+1, p+1 and k+1 computing are carried out while C binary variable circulation cryptographic calculations, next binary variable circulation cryptographic calculation is pointed to H2=C
Figure 731806DEST_PATH_IMAGE022
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C
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Figure 2013100231196100001DEST_PATH_IMAGE023
Figure 510997DEST_PATH_IMAGE005
C
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C
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CCC（Wherein k=1）, generate second binary system encryption anti-fake information H in 32 one group of binary system encryption anti-fake information table2, it is right
Figure 2013100231196100001DEST_PATH_IMAGE024
Carry out H2=C
Figure 458356DEST_PATH_IMAGE002
Figure 106823DEST_PATH_IMAGE003
C
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Figure 533573DEST_PATH_IMAGE023
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C
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C
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CC
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I+1, q+1, j+1, d+1, e+1, f+1, g+1, h+1, r+1, p+1 and k+1 computing are carried out while C binary variable circulation cryptographic calculations, next binary variable circulation cryptographic calculation is pointed to H3= C
Figure 217944DEST_PATH_IMAGE002
C
Figure 83088DEST_PATH_IMAGE003
Figure 2013100231196100001DEST_PATH_IMAGE025
Figure 128798DEST_PATH_IMAGE004
C
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Figure 2013100231196100001DEST_PATH_IMAGE026
C
Figure 567498DEST_PATH_IMAGE007
CC
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C（Wherein k=2）, generate the 3rd binary system encryption anti-fake information H in 32 one group of binary system encryption anti-fake information table3, this binary variable circulation cryptographic calculation goes on until last 32 binary system anti-counterfeiting information in binary system anti-counterfeiting information table always, by each 32 binary system anti-counterfeiting information in 32 one group of binary system anti-counterfeiting information tablesCarry out binary variable circulation cryptographic calculation, generation 32 one group of binary system encryption anti-fake information tables corresponding with 32 one group of binary system anti-counterfeiting information tables, processing is digitized to amplitude in label printing, amplitude is set to two kinds, the amplitude wherein printed by dielectric ink is defined as numeral 0, the amplitude printed by electrically conductive ink is defined as numeral 1, modulate the printing process of the amplitude on the trade mark page by circulating look-up table using 32 one group of binary system encryption anti-fake information of generation during label printing, the regular electric conductivity according to above two amplitude of amplitude on the trade mark page is changed by selecting dielectric ink and electrically conductive ink to print amplitude, adjacent 32 amplitudes constitute one group of 32 binary message on the trade mark page after modulation, so that carrying anti-counterfeiting information by the change of amplitude electric conductivity on the trade mark page, and the anti-counterfeiting information is embedded in whole trade mark page site, realize trademark anti-counterfeit.
CN2013100231196A 2013-01-22 2013-01-22 Single parameter binary variable circulation encryption anti-counterfeiting information storage trademark Pending CN103106447A (en)

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