CN201662818U - Anti-fake certification device with laser-marking and multi-encrypting two-dimensional code fingerprint - Google Patents
Anti-fake certification device with laser-marking and multi-encrypting two-dimensional code fingerprint Download PDFInfo
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- CN201662818U CN201662818U CN 201020115905 CN201020115905U CN201662818U CN 201662818 U CN201662818 U CN 201662818U CN 201020115905 CN201020115905 CN 201020115905 CN 201020115905 U CN201020115905 U CN 201020115905U CN 201662818 U CN201662818 U CN 201662818U
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Abstract
Disclosed is an anti-fake certification device with laser-marking and multi-encrypting two-dimensional code fingerprint, which comprises a laser marking device, a two-dimensional code reading device, an encrypting two-dimensional code generation and management device and an encrypting two-dimensional code fingerprint chromatogram database. The original information is encoded into the multi-encrypting two-dimensional code and then the multi-encrypting two-dimensional code is etched on the surface of the article by the laser marking device. In addition, the image and the key of the multi-encrypting two-dimensional code etched by the laser is stored in the two-dimensional code fingerprint chromatogram database. When in certification, the CCD device is used for obtaining the image of the multi-encrypting two-dimensional code on the surface of the article and then the image is sent to a central server which processes the image of the multi-encrypting two-dimensional code. The original multi-encrypting two-dimensional code fingerprint chromatogram in the two-dimensional code fingerprint chromatogram database is used for the contrastive analysis and the true and false judgment and then the judgment result is sent to the user. The utility model has the advantages of low requirement to the processing material and the surface quality, and high security.
Description
Technical field:
The utility model relates to physical field, relates in particular to two-dimension code encryption technology and laser technology, particularly a kind of laser index carving multi-enciphering two-dimension code fingerprint anti-fake certificate device.
Background technology:
In the prior art, planar bar code technology is widely used in fields such as commodity production, circulation and storage, health care, books information, postal service, railway, communications and transportation, production automation management.The application of planar bar code technology has improved the speed of data acquisition and information processing, has improved work and living environment, has improved work efficiency.At present, two-dimension code mainly contains stack two-dimensional bar code and matrix type two-dimension sign indicating number, representative having in the stack two-dimensional bar code: Code 16K, Code 49, PDF417 etc., representative having in the matrix two-dimensional barcode: Code One, Maxi Code, QR Code, DataMatrix etc.2 D code information density height, capacity are big.But 1850 capitalizations of outfit as many as or 2710 numerals or 1108 bytes, or more than 500 Chinese character are higher approximately tens times than common bar code information capacity.Literal, photo, fingerprint, signature, sound etc. can be encoded.But the General Two-Dimensional sign indicating number all is that printing produces, and the two-dimension code of printing can for example touch because of environmental concerns, acidity and alkaline gas, high temperature, low temperature disappear.Utilize laser directly to make two-dimension code, the quality on rapidoprint and surface is not strict with, can stay permanent sign at surface of the work.In addition, need maintain secrecy to 2 D code information, so that producer's management in many occasions.In addition, also there is the imitated possibility by the clone in two-dimension code.
Real summary of the invention:
The purpose of this utility model is to provide a kind of laser index carving multi-enciphering two-dimension code fingerprint anti-fake certificate device, described this laser index carving multi-enciphering two-dimension code fingerprint anti-fake certificate device will solve the problem that the two-dimension code disappearance damages and information can't be maintained secrecy in the prior art, and has the technical matters of being copied by the clone.
This laser index carving multi-enciphering two-dimension code fingerprint anti-fake certificate device of the present utility model is by the laser index carving device, two dimension code reading equipment, the ciphering two-dimension sign indicating number generates management devices and ciphering two-dimension sign indicating number fingerprints database constitutes, wherein, described ciphering two-dimension sign indicating number generates management devices and is made of a computing machine, described laser index carving device is made of a laser marking machine, described two dimension code reading equipment is made of a two-dimension code scanning device, described ciphering two-dimension sign indicating number fingerprints database is connected with described computing machine, described laser marking machine is connected with computing machine with data cable by control, and described two-dimension code scanning device is connected with computing machine with data cable by control.
Further, described ciphering two-dimension sign indicating number fingerprints database is connected with a central server by network, and described central server 4 is connected with user terminal by network.
Further again, described user terminal is CCD camera or the mobile phone that has photographic means.
Principle of work of the present utility model is: ciphering two-dimension sign indicating number fingerprint is on ordinary two dimensional sign indicating number basis, adds the multi-enciphering technology and in conjunction with laser marking dot matrix feature and the two-dimension code that generates has not only comprised the characteristics of two-dimension code but also have powerful anti-counterfeit capability at random.This two-dimension code fingerprint can be represented a large amount of ciphered data informations in a very little coding region, and the combining wireless communication network, can realize that the information encryption of safety and reliability, more convenient and quicker is false proof.Simultaneously, this laser index carving ciphering two-dimension sign indicating number fingerprint not only can be used as the product false proof sign indicating number, can also be as producing sign indicating number, logistics code, and enterprise as clue, registers the production circulation information with ciphering two-dimension sign indicating number sign indicating number in the production process of circulation.The enterprise market personnel only need be with the ciphering two-dimension sign indicating number on scanner or the handset identity product, and the information (information such as manufacturer's information, product information, permission market, circulation path) that just can inquire about product realizes the inquiry to information whenever and wherever possible.
In the laser index carving multi-enciphering two-dimension code fingerprint anti-fake certificate device, at first, utilize the cryptography principle that the original information content is carried out cryptographic calculation, generate encrypted information.And from encrypted information, carry out the multi-enciphering computing, generate the double-encryption two-dimension code, and utilize key to manage.The contained information of this ciphering two-dimension sign indicating number has only the deciphering equipment that has key by grasping in user's hand to be decrypted recognition, revert to data mode, the shortcoming that is decrypted easily when having improved the contained information transmission of two-dimensional bar code so greatly, thus satisfy the two-dimension code content information is had security requirements and has anti-fraud functional applications better.
Secondly, utilize laser labelling ciphering two-dimension sign indicating number on commodity, laser index carving is to utilize the laser of high-energy-density that workpiece is carried out local irradiation, makes the chemical reaction of skin-material vaporization or generation change color, thereby stays a kind of method of permanent marker.Because this device is to adopt the meticulous marking of short pulse short wavelength laser, the superfine laser after the focusing is removed the material surface pointwise.Can get various literal, symbol and pattern etc., character boundary can arrive micron dimension, and this has special meaning to product false proof.In addition, because small-sized behind the laser focusing, the laser action time is extremely short again has only nanosecond order, makes the formed etching point of laser index carving have only micron dimension, can not damage processed carrier.Laser sign indicating number at quarter cost is low simultaneously, making is simple, and the automaticity height is easy at production line integrated.
Further, in order to overcome copying to two-dimension code, random character when utilizing laser index carving, produce during inner certain part of control laser index carving two-dimension code some size at random and feature such as position, can also use specific mask to form exclusive laser ablation point shape, final generate " two-dimension code fingerprint ".The two-dimension code that this laser marking generates has unique feature.Because the two-dimension code of the fluctuating characteristics of laser aid itself and the different and laser index carving of mask is made up of thousands of point, even therefore adopt same laser marking machine all can not marking become same two-dimension code.Utilize this method can reach extraordinary antifalse effect.
Moreover, set up laser index carving ciphering two-dimension sign indicating number fingerprint database and administrative center, just can the anti-fake encrpted two-dimension code of online laser index carving during from production, and utilize CCD equipment reading encrypted two-dimension code finger-print, be stored in the two-dimension code fingerprints database.The client takes can utilize CCD imaging device and the mobile phone photograph two-dimension code on it behind the commodity, then by Network Transmission to central server.Central server is handled these ciphering two-dimension sign indicating numbers, the tested original two dimensional sign indicating number finger-print that obtains when conveniently calling this product of production according to its contained information is analyzed, utilize the two-dimension code of material laser marking on the product to have the feature of uniqueness, comprise specifically that in conjunction with comparison method aspect ratio to method, feature bonding method, geometrography, overlap ratio equity, finally judges tested commodity true and false.And be returned to user mobile phone by network in real time.
Laser sign indicating number at quarter cost is low, making is simple.
By the computer control laser marking machine, can without any need for auxiliary material with the marking of ciphering two-dimension sign indicating number on material, cost of manufacture is low, environmental protection, quick.A large amount of traditional paper labels expenses etc. have been saved.
Laser marking machine adopts the complete non-maintaining laser aid that solidifies, and utilizes advanced online flight automatic control technology, successfully satisfies the online laser marking of field requirement.Laser processing device combines with computer numerical control technology, safety is provided, fast and cheaply processes, and has improved work efficiency.
The laser index carving two-dimension code has very strong anti-damage, anti-interference and error correcting capability.Two-dimension code is a kind of Graphics Data File, is the information carrier (for example RFID etc.) that is different from traditional electromagnetic signal mode.Utilize computing machine that two-dimension code is converted to dot array data, the control laser light acts on surface of the work and produces mark, and mark can be because of environmental concerns (touch, acidity and subtracting property gas, high temperature, low temperature etc.) disappears, to rapidoprint and not strict demand of surface.Two-dimension code has also added the alternative computing (for example REED SOLOMAN algorithm) under stained, misalignment in forming process, make two-dimension code have error-checking ability and error correcting ability.In theory, two-dimension code still can obtain correct information reverting being damaged under 50% the situation.Because be that figure characterizes, the non-electromagnetic field interference requirement is superior to present RFID device fully.
Laser index carving ciphering two-dimension sign indicating number has the excellent information anti-counterfeiting performance, and two-dimension code can be with the cipher mode of information, is used as commodity or the anti-counterfeiting mark of valency certificate is arranged.From the coding source program of two-dimension code, encrypt in addition, need the technology and the read write line of specialty just can read, further guarantee the security of 2 D code information.In addition, the control laser marking machine is random character and the features such as the arrangement of etching point, size, shape and position of using different inner certain parts of mask change two-dimension code when mark, the two-dimension code that makes laser marking generate has unique feature, forms exclusive " two-dimension code fingerprint ".Can not protect all perfectness of the shape of each point, position, size even if use high definition clone technology copy imitated " two-dimension code " sign indicating number.Therefore, laser index carving ciphering two-dimension sign indicating number is to be difficult to forge.Has extraordinary application value.
The laser index carving two-dimension code can realize that commodity production information transmits and sales management automatically, fast, employing laser index carving 2D bar code technology can realize the automatic identification in the production management and follow the tracks of supervision in the enterprise product production and sales management process, load different information by two-dimension code, can follow the tracks of the production run of product.It is single at first to assign production task by commercial center by computer network, and job order is followed corresponding product and flowed.When production link begins then, generate the ciphering two-dimension sign indicating number automatically, and with the laser marking machine marking on the production line at On-line Product marking ciphering two-dimension sign indicating number, obtain ciphering two-dimension sign indicating number finger-print simultaneously and record in the ciphering two-dimension sign indicating number fingerprint database.During wire wrapping, utilize the two-dimension code on the terminal scanner scanning product under the final product, according to distribution of information to client everywhere.By the information transmission of two-dimension code, allow and produce more " safety ".Reduce human error, increase work efficiency.
Owing to adopted ciphering two-dimension sign indicating number generating mode, had only the specific recognizing apparatus that has decoding program and password just can read.Can help enterprise that commodity flowing in order in network for distributed sales realized strict supervision and control improving the channel management level of enterprise.By the application encipher 2D bar code technology commodity are carried out secure identification, also can realize commodity verification function, effectively stop transregional sale of product and falsifying, take precautions against fake and forged impact.
Be easy to verify commodity true and false by network, the client can utilize mobile phone photograph, arrives central server by Network Transmission then.Central server is handled these ciphering two-dimension sign indicating numbers, and at first the tested two-dimension code collection of illustrative plates that obtains when producing this product is analyzed, and utilizes the two-dimension code of material laser marking on the product to have the feature of uniqueness, finally judges tested commodity true and false.And be returned to user mobile phone by network in real time.For example can promote the use of in the wine industry, go up engraving ciphering two-dimension sign indicating number at bottle lid (adopting plastics, destructible made such as aluminium alloy) more, lid is ruined in uncork, and bottle cap no longer possesses the function of packing after destroying.Though bottle cap can be copied, the ciphering two-dimension sign indicating number of carving on it can't be copied.
The utility model and prior art are compared, and its effect is actively with tangible.The utility model utilizes laser index carving device, two-dimension code terminal recognizing apparatus and ciphering two-dimension sign indicating number to generate management devices and ciphering two-dimension sign indicating number fingerprints database constitutes the anti-fake certificate device, instant data generation, marking, identification, data management function have been finished by internet and background data base are interconnected, and can be with the information of each part commodity and user's consumption and consumption record, collect rapidly and accurately, gather, can be according to the facility database and the client self contained data base of classification, according to the characteristics formation hierarchical classification management of industry.
Description of drawings:
Fig. 1 is the synoptic diagram of an embodiment of laser index carving multi-enciphering two-dimension code fingerprint anti-fake certificate device of the present utility model.
Embodiment:
Embodiment 1:
As shown in Figure 1, laser index carving multi-enciphering two-dimension code fingerprint anti-fake certificate device of the present utility model, by laser index carving device 1, two dimension code reading equipment, the ciphering two-dimension sign indicating number generates management devices and ciphering two-dimension sign indicating number fingerprints database constitutes, wherein, described ciphering two-dimension sign indicating number generates management devices and is made of a computing machine 6, described laser index carving device 1 is made of a laser marking machine, described two dimension code reading equipment is made of a two-dimension code scanning device 7, described ciphering two-dimension sign indicating number fingerprints database 5 is connected with described computing machine 6, described laser marking machine is connected with computing machine 6 with data cable by control, and described two-dimension code scanning device 7 is connected with computing machine 6 with data cable by control.
Further, described ciphering two-dimension sign indicating number fingerprints database is connected with a central server 4 by network, and described central server 4 is connected with user terminal 3 by network.
Further again, described user terminal is camera or the mobile phone that has photographic means.
The course of work of present embodiment is: earlier raw information is encrypted, information after will encrypting is again carried out the encryption of twice above number, obtain the multi-enciphering two-dimension code, after raw information is encoded into two-dimension code, utilize laser index carving device 1 that described multi-enciphering two-dimension code is etched in article 2 surfaces, simultaneously, utilize two-dimension code scanning device 7 to read the multi-enciphering two-dimension code finger-print on article 2 surfaces, and described multi-enciphering two-dimension code finger-print is stored in the two-dimension code fingerprints database 5, utilize CCD device client terminal 3 to obtain the image of the multi-enciphering two-dimension code on article 2 surfaces, then described image is transferred to a central server 4, utilize the image of 4 pairs of multi-enciphering two-dimension codes of described central server to handle, and utilize central server 4 to call original multi-enciphering two-dimension code finger-print in the two-dimension code fingerprints database 5, be analyzed and judge and the true and false again judged result is returned to the user.
Further, the multi-enciphering two-dimension code is etched in the process on article 2 surfaces at the described laser index carving device 1 that utilizes, utilize short pulse short wavelength laser laser that local irradiation is carried out on article 2 surfaces, make the vaporization of article 2 skin-materials or change color takes place, thereby stay permanent marker.
Further, the multi-enciphering two-dimension code is etched in the process on article 2 surfaces, utilizes laser index carving device 1 part in the multi-enciphering two-dimension code to produce etching point 8 at random at the described laser index carving device 1 that utilizes.
Further the multi-enciphering two-dimension code is etched in the process on article 2 surfaces, utilizes CCD equipment 7 to obtain the image of the multi-enciphering two-dimension code on article 2 surfaces, and store in the two-dimension code fingerprints database 5 at the described laser index carving device 1 that utilizes.
In an embodiment of the present utility model, physical delivery has adopted the two-dimension code application management in the noble metal futures spot market.Tradition noble metal (as ingot, silver ingot, copper ingot and aluminium ingot etc.) has only some simple marks, and quantity of information is few, forges easily, duplicates easily.By laser index carving multi-enciphering two-dimension code fingerprint anti-fake certificate device of the present utility model, can carry out the large-tonnage product management of information very easily and improve the efficient that product is completed a business transaction, circulated and reclaims.The application of noble metal ciphering two-dimension sign indicating number fingerprint management device will greatly promote circulation of commodities standardization, informationalized integral level, promote the structure of deal upgrading.
Laser index carving multi-enciphering two-dimension code fingerprint anti-fake certificate device implementation process is as follows:
1: the two-dimension code data encryption process
In theory, two-dimension code is with the sign indicating number speech on one group of mathematical meaning, and is represented and deposited information by the geometric figure that the sign indicating number speech constitutes.A sign indicating number speech is certain bar dummy cell (array).On mathematical meaning, be a message unit of " number " or " bit stream " representative of a certain system.By the geometric figure that a group code speech constitutes, represented the information of some.Different code systems, the amount of storage difference of information, performance parameter are also different.At first the outer infill layer of employing is the encryption to message part, adopts the encryption method of present industrial standard promptly can realize.Interior infill layer is that the sign indicating number speech (bit stream) that changes two-dimension code inside is realized.And utilize key to manage.The contained information of this ciphering two-dimension sign indicating number has only the deciphering equipment that has key by grasping in user's hand to be decrypted recognition, revert to data mode, the shortcoming that is decrypted easily when having improved the contained information transmission of two-dimensional bar code so greatly, thus satisfy the two-dimension code content information is had the security requirements applications better.Adopt the inside and outside two-layer encryption of two-dimension code, guaranteed that the ciphering two-dimension sign indicating number has reliable security, the personation that prevents and the possibility of forgery.
2: ciphering two-dimension sign indicating number fingerprint manufacturing process
Utilize two-dimension code that the laser aid mark encrypted on commodity.Laser index carving is to utilize the laser of high-energy-density that workpiece is carried out local irradiation, makes the chemical reaction of skin-material vaporization or generation change color, thereby stays a kind of method of permanent marker.Because this device is to adopt the meticulous marking of short pulse short wavelength laser, the superfine laser after the focusing is removed the material surface pointwise.Can get various literal, symbol and pattern etc., character boundary can arrive micron dimension, and this has special meaning to product false proof.In addition, because small-sized behind the laser focusing, the laser action time is extremely short again has only nanosecond order, makes the formed etching point of laser index carving have only micron dimension, can not damage processed carrier.Secondly, laser sign indicating number at quarter cost is low, making is simple, and the automaticity height is easy at production line integrated.Further, in order to overcome copying to two-dimension code, random character when utilizing laser index carving, produce during inner certain part of control laser index carving two-dimension code some size at random and feature such as position, can also use specific mask to form exclusive laser ablation point shape, final generate " two-dimension code fingerprint ".The two-dimension code that this laser marking generates has unique feature.Because the two-dimension code of the fluctuating characteristics of laser aid itself and the different and laser index carving of mask is made up of thousands of point, even therefore adopt same laser marking machine all can not marking become same two-dimension code.Utilize this method can reach extraordinary antifalse effect.
3: ciphering two-dimension sign indicating number finger print data management process
1) basic function
Two-dimension code is as the label on the noble metal in the commodity transaction, and its function mainly is:
Utilize the two-dimension code on the noble metal,, distinguish the noble metal authenticity by two-dimension code identification terminal and ciphering two-dimension sign indicating number fingerprints database.
Utilize the two-dimension code on the noble metal, realization production information and Transaction Information are gathered automatically.And generate transaction record automatically by network, and real-time update is in database.
2) realization flow
A: the information of depositing in the ciphering two-dimension sign indicating number
For two-dimension code, can store data reach 3700 bytes in theory.In actual applications fast and effectively byte number usually 300-500 byte.Therefore, deposit important information in the two-dimension code of suggestion on noble metal, two-dimension code adopts inside and outside two infill layers, utilizes the secret key management, and the secret key setting is finished by production firm.Guaranteed that the ciphering two-dimension sign indicating number has very high security.Secret key management for convenience in addition, two-dimension code below mark product ID is so that quick corresponding corresponding secret key.
B ciphering two-dimension sign indicating number fingerprint management flow process
Employing laser index carving 2D bar code technology can realize the automatic identification in the production management and follow the tracks of supervision in the enterprise product production and sales management process, it is single at first to assign production task by commercial center by computer network, and job order is followed corresponding product and flowed.When production link begins then, generate the ciphering two-dimension sign indicating number automatically, and with the laser marking machine marking on the production line at On-line Product marking ciphering two-dimension sign indicating number, obtain ciphering two-dimension sign indicating number finger-print simultaneously and record in the ciphering two-dimension sign indicating number fingerprint database.During wire wrapping, utilize the two-dimension code on the terminal scanner scanning product under the final product, according to distribution of information to client everywhere.By be provided with relevant terminal and two-dimension code collector at dealer place, when coming in and going out, all gathers by each kinds of goods the two-dimension code on the kinds of goods, relevant information on its terminal in the two-dimensional code display and kinds of goods authenticity and whether meet the discrepancy condition.2 D code information of every collection, this terminal is kept at automatic recording-related information in the database by network.The user can count the kinds of goods discrepancy situation of this any period of point of sale at any time.According to the kinds of goods discrepancy information of preserving automatically in device, the clearing personnel will count the receivables number of every day on the same day automatically.The clearing personnel check actual collection amount and device statistical figure that the sales force pays in the clearing time of regulation, if conform to, show to settle accounts and finish.
Adopt the label of laser index carving ciphering two-dimension sign indicating number fingerprint, almost contained all advantages of other electronic tag such as magnetic card and IC-card as noble metal.From the reliability aspect of using, the effect of ciphering two-dimension sign indicating number fingerprint be other measures can't replace.Simultaneously, ciphering two-dimension sign indicating number fingerprint is a kind ofly can not rewrite information data file, and this will further greatly strengthen the reliability of mark.Adopt this technology, in conjunction with laser index carving ciphering two-dimension sign indicating number fingerprint and ciphering two-dimension sign indicating number fingerprints database device, it is convenient with transaction greatly to improve false proof efficient.In addition, because processes such as transportation, circulations, ciphering two-dimension sign indicating number fingerprint will inevitably be subjected to breakage, pollution in various degree, because two-dimension code is contactless recognition, and having very strong error correction, its symbol still can correctly be distinguished by error correction algorithm after being subjected to the part damage.Therefore, laser labelling ciphering two-dimension sign indicating number fingerprint is suitable as the information carrier of noble metal very much.
More than be preferred embodiment of the present utility model, all changes of doing according to technical solutions of the utility model when the function that is produced does not exceed the scope of technical solutions of the utility model, all belong to protection domain of the present utility model.
Claims (3)
1. laser index carving multi-enciphering two-dimension code fingerprint anti-fake certificate device, by the laser index carving device, two-dimension code terminal recognizing apparatus, the ciphering two-dimension sign indicating number generates management devices and ciphering two-dimension sign indicating number fingerprints database constitutes, it is characterized in that: described ciphering two-dimension sign indicating number generates management devices and is made of a computing machine, described laser index carving device is made of a laser marking machine, described two-dimension code terminal recognizing apparatus is made of a two-dimension code scanning device, described ciphering two-dimension sign indicating number fingerprints database is connected with described computing machine, described laser marking machine is connected with computing machine with data cable by control, and described two-dimension code scanning device is connected with computing machine with data cable by control.
2. laser index carving multi-enciphering two-dimension code fingerprint anti-fake certificate device as claimed in claim 1, it is characterized in that: described ciphering two-dimension sign indicating number fingerprints database is connected with a central server by network, and described central server is connected with user terminal by network.
3. laser index carving multi-enciphering two-dimension code fingerprint anti-fake certificate device as claimed in claim 2, it is characterized in that: described user terminal is CCD camera or the mobile phone that has photographic means.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201020115905 CN201662818U (en) | 2010-02-22 | 2010-02-22 | Anti-fake certification device with laser-marking and multi-encrypting two-dimensional code fingerprint |
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| CN 201020115905 CN201662818U (en) | 2010-02-22 | 2010-02-22 | Anti-fake certification device with laser-marking and multi-encrypting two-dimensional code fingerprint |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157106A (en) * | 2011-05-10 | 2011-08-17 | 云南荷乐宾防伪技术有限公司 | Composite multifunctional anti-counterfeiting mark with combination of two-dimensional code and optically variable image |
| CN102909977A (en) * | 2012-09-28 | 2013-02-06 | 飞天诚信科技股份有限公司 | Control method for burning and lettering in production |
-
2010
- 2010-02-22 CN CN 201020115905 patent/CN201662818U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157106A (en) * | 2011-05-10 | 2011-08-17 | 云南荷乐宾防伪技术有限公司 | Composite multifunctional anti-counterfeiting mark with combination of two-dimensional code and optically variable image |
| CN102909977A (en) * | 2012-09-28 | 2013-02-06 | 飞天诚信科技股份有限公司 | Control method for burning and lettering in production |
| CN102909977B (en) * | 2012-09-28 | 2014-10-29 | 飞天诚信科技股份有限公司 | Control method for burning and lettering in production |
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