CN102682268A - Micro image code recognition device matched with anti-counterfeiting certificate - Google Patents
Micro image code recognition device matched with anti-counterfeiting certificate Download PDFInfo
- Publication number
- CN102682268A CN102682268A CN 201210122199 CN201210122199A CN102682268A CN 102682268 A CN102682268 A CN 102682268A CN 201210122199 CN201210122199 CN 201210122199 CN 201210122199 A CN201210122199 A CN 201210122199A CN 102682268 A CN102682268 A CN 102682268A
- Authority
- CN
- China
- Prior art keywords
- image encoding
- miniature image
- recognition device
- counterfeit certificate
- miniature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Credit Cards Or The Like (AREA)
Abstract
The invention relates to a micro image code recognition device matched with an anti-counterfeiting certificate. The micro image code recognition device comprises an optical module, an image sensor, an image recognition and processing unit, an output unit and a control module, wherein the optical module is used for obtaining a microscopically-amplified optical image on the surface of the anti-counterfeiting certificate; the image sensor is used for generating the optical image obtained by the optical module to a digital image; the image recognition and processing unit is used for picking up a micro image code from the digital image generated by the image sensor and decoding the micro image code to a unique information code corresponding to the micro image code; the output unit is used for outputting the information code obtained after the micro image code is decoded; and the control module is used for receiving the information codes output by the image recognition and processing unit and controlling the output unit to output the information code.
Description
The present invention is based on following patented claim and divides an application for what the basis proposed: application number is 200810113068.5, the applying date is that on May 27th, 2008, denomination of invention are " through checking the anti-counterfeit certificate that miniature image encoding and identifying code are discerned the false from the genuine ".
[technical field]
The present invention relates to a kind ofly, relate in particular to the miniature image encoding recognition device that a kind of and anti-counterfeit certificate are complementary through checking the Antiforge system that miniature image encoding and identifying code are discerned the false from the genuine.
[background technology]
In existing anti-counterfeiting technology; Mainly contain following several kinds like false proof measures that certificate adopted such as I.D., passports: be that laser holographic pattern is set 1) on certificate than common mode; The shortcoming of the anti-counterfeiting mark that this employing human eye is discerned is, as long as adopt similar equipment just can copy forgery, can't distinguish true and false; Not only antiforge function is not strong, and cost is high; 2) read message of looking to the document surface anti-counterfeit recognition adopts the false proof mode of physics intuitively, with false proof some level by rank management, shortcoming be prone to divulge a secret, false proof mode adopts be general characterization false proof, a bit broken through fall completely; 3) look read message and the pass point with certificate is stored in certificate and processes in the IC chip of one; The shortcoming of this mode is once chip damages; The machine-readable anti-false recognition function of certificate had just lost efficacy, and need in former database, inquire about through network, inquired about inconvenience; Particularly can't with situation that network is connected under will be difficult to realize examination that the IC-card chip cost is high in addition.
In the existing anti-counterfeiting technology, also comprise a kind ofly through the false proof method of encoded micro holes, see also one Chinese patent application number: 99100515.5; This method is done the microscopic particle restraining barrier with coding version (micropore mother matrix) and is carried out the heavy charged particle irradiation; When checking every piece to identify, compare to discern the false from the genuine through the micropore distribution of micropore distribution plan and coding version, still the shortcoming of this anti-counterfeiting technology is; This micropore is easy to copy equally, and antiforge function is not strong.
In addition; In the prior art; It is increasingly mature to utilize optical pickup device to read the miniature image encoding technology of body surface printing, sees also the Chinese invention patent of patent No. ZL02122633.4, and denomination of invention is: make the method for image index and the disposal system of application image index; This patent has disclosed a kind of device of discerning miniature image encoding in detail; This miniature image encoding can be every square centimeter of dot matrix that is provided with 13950 stains at most, therefore is not beyond recognition the formation of its picture coding by special equipment, has the characteristic that is difficult for by the ordinary people discerned.
[summary of the invention]
The object of the present invention is to provide a kind of miniature image encoding recognition device that is complementary with anti-counterfeit certificate; Technical matters to be solved is to make the anti-counterfeit certificate surface have the difficult picture coding of being discerned and duplicating by human eye, and can whether mate the resolution article genuine-fake through checking this picture coding and identifying code.
The object of the invention and solve its technical matters and adopt following technical scheme to realize.According to inventing propose a kind of through checking the anti-counterfeit certificate that miniature image encoding and identifying code are discerned the false from the genuine; Described anti-counterfeit certificate surface printing is used to verify the identifying code and the miniature image encoding corresponding with identifying code of article genuine-fake to be tested; This miniature image encoding is made up of a plurality of little elementary areas; And distinguish different miniature image encoding with the array mode of a plurality of little elementary areas in each miniature image encoding, and these a plurality of little elementary areas be combined to form human eye the minute pattern that can not discern; Described miniature image encoding is identical with the identifying code of anti-counterfeit certificate surface printing through the information code that decoding can uniquely obtain.
The object of the invention and solve its technical matters and also can adopt following technical measures further to realize.
Aforesaid through checking the anti-counterfeit certificate that miniature image encoding and identifying code are discerned the false from the genuine; Wherein said miniature image encoding is to be printed on the anti-counterfeit certificate surface with specialty inks, and light wave and common ink that this specialty inks is reflected under the rayed of specific wavelength are different; Described anti-counterfeit certificate surface is with the information beyond the common ink printing miniature image encoding, and specialty inks is not all contained on the anti-counterfeit certificate surface except that miniature image encoding.
Aforesaid through checking the anti-counterfeit certificate that miniature image encoding and identifying code are discerned the false from the genuine, wherein said miniature image encoding is that the absorbing ink with a large amount of absorption infrared lights is printed on the anti-counterfeit certificate surface.
Aforesaid through checking the anti-counterfeit certificate that miniature image encoding and identifying code are discerned the false from the genuine, wherein said absorbing ink is for containing carbon printing ink.
Aforesaid wherein said anti-counterfeit certificate is printed with the fallback area with common ink on the surface through checking the anti-counterfeit certificate that miniature image encoding and identifying code are discerned the false from the genuine, and miniature image encoding is printed in the fallback area with specialty inks; The color of described common ink is identical with the color of specialty inks.
It is aforesaid that wherein said identifying code is printed in the fallback area through checking the anti-counterfeit certificate that miniature image encoding and identifying code are discerned the false from the genuine, and with the color printing different with the fallback area ink colors.
Aforesaid through checking the anti-counterfeit certificate that miniature image encoding and identifying code are discerned the false from the genuine, wherein said identifying code is arranged at the anti-counterfeit certificate surface with false proof mode.
Aforesaid through checking the anti-counterfeit certificate that miniature image encoding and identifying code are discerned the false from the genuine, wherein said identifying code is arranged at the anti-counterfeit certificate surface with the watermark form.
Aforesaid through checking the anti-counterfeit certificate that miniature image encoding and identifying code are discerned the false from the genuine, wherein said identifying code is with the ink printing that comprises ultraviolet fluorescence powder.
By technique scheme, the present invention has advantage through the anti-counterfeit certificate of checking miniature image encoding and identifying code and discerning the false from the genuine:
The present invention obtains the miniature image encoding of anti-counterfeit certificate surface printing through the miniature image encoding recognition device; With obtaining information code after this miniature image encoding decoding; Again the identifying code of information code and anti-counterfeit certificate surface printing is checked, according to the checked result examination true and false.Adopt in the Antiforge system of the present invention; Anti-counterfeit certificate is to be processed by any object that can print miniature image encoding, or directly the object to be tested of miniature image encoding itself is arranged at surface printing, only need print and gets final product and print miniature image encoding; Therefore with low cost; In addition, to false proof article to be tested are not set early stage, can be through mode Rapid Realization antiforge function in its surface printing miniature image encoding;
Above-mentioned miniature image encoding is to constitute with very small little elementary area; Therefore neither can influence the visual effect of other pictographs of anti-counterfeit certificate surface printing; Can guarantee again under the situation of not using specific apparatus; The figure that the ordinary people can't differentiate this miniature image encoding constitutes, to guarantee the security of this miniature image encoding, simultaneously; Under the situation that the surperficial large tracts of land of anti-counterfeit certificate is damaged, the miniature image encoding recognition device still can be checked the true and false through on minimum not broken parts, obtaining miniature image encoding;
Above-mentioned miniature image encoding is very small; Each miniature image encoding all is made up of a plurality of little elementary areas, and distinguishes each miniature image encoding with the array mode between little elementary area, and each little elementary area diameter can be as small as 40 μ m at least; As adopt 16 little elementary areas to constitute a miniature image encoding; Then wherein 7 little elementary areas are used to locate miniature image encoding, and 9 little elementary areas are formed 3 * 3 planar state region array, obtain 4 with this
9The different state combination is planted in (=262144); Correspondence obtains 262144 different numerical value that can define the different product check code; Can from described 262144 kinds of combinations of states take out wherein 65536 combinations of states; With literal 65536 affiliated coding sites in the corresponding ten thousand country code coding structures; All the other combinations of states then can keep as other purposes, and hence one can see that, miniature image encoding be naked eyes can not discern; And little elementary area array combination mode is various; Therefore very be suitable as anti-fake certificate and use, its employed printing ink of miniature image encoding printing also capable of using is distinguished with the printing ink of other parts of printing mutually in addition, utilizes the optical filter filtration of miniature image encoding recognition device to obtain miniature image encoding again; Just can obtain thereby the miniature image encoding of printing on the anti-counterfeit certificate of the present invention must be possessed under the condition that special light sources irradiation, the little amplification of high power digital display, specific optical filter optical filtering etc. all possess at the same time, further realize protection as the miniature image encoding of anti-counterfeiting mark;
The present invention takes directly to read the mode of the miniature image encoding of anti-counterfeit certificate surface printing and checks; Therefore it is fast to have recognition speed; Accomplish the examination work of a large amount of article to be tested within a short period of time, in addition, through also can inquire the partial information of product to the inquiry of the visible identifying code of human eye; Like product batches, sell the time etc., identifying code is arranged at false proof mode and then more can makes anti-counterfeit certificate have non-reproduction on the anti-counterfeit certificate.
[description of drawings]
Fig. 1 is the structured flowchart of anti-counterfeit system of micro image code of the present invention.
Fig. 2 is that anti-counterfeit certificate of the present invention is applied in the synoptic diagram on the bottle.
Fig. 3 is the synoptic diagram of the many groups of printing miniature image encoding on the anti-counterfeit certificate of the present invention.
Fig. 4 is the synoptic diagram of little elementary area array combination structure in the miniature image encoding.
Fig. 5 is the synoptic diagram of the state region set-up mode of miniature image encoding.
Fig. 6 is the method flow diagram of genuine or counterfeit identification by identifying micro image code of the present invention.
[embodiment]
Reach technological means and the effect that predetermined purpose is taked for further setting forth the present invention; Below in conjunction with accompanying drawing and preferred embodiment; A kind of to what propose through checking the anti-counterfeit certificate that miniature image encoding and identifying code are discerned the false from the genuine according to the present invention; Its embodiment, structure, characteristic and effect thereof, specify as after.
See also shown in Figure 1; It is the structured flowchart of anti-counterfeit system of micro image code of the present invention; This anti-counterfeit system of micro image code comprises miniature image encoding recognition device and anti-counterfeit certificate; The anti-counterfeit certificate surface printing has in order to the miniature image encoding of representing article to be tested and the identifying code corresponding with this miniature image encoding; This miniature image encoding is made up of a plurality of little elementary areas, and distinguishes different miniature image encoding with the array mode of a plurality of little elementary areas in each miniature image encoding, and these a plurality of little elementary areas be combined to form human eye the minute pattern that can not discern; Described miniature image encoding is identical with the identifying code of anti-counterfeit certificate surface printing through the information code that decoding can uniquely obtain.On every anti-counterfeit certificate printed miniature image encoding be with the identifying code of different article to be tested one to one.
Above-mentioned miniature image encoding recognition device comprises: the optical module that is used to obtain anti-counterfeit certificate surface microscopic magnified optical images; The optical image that optical module is obtained is generated as the imageing sensor of digitized video; Image recognizing and processing unit is picked up miniature image encoding, and this miniature image encoding is decoded as and its unique corresponding information code from the digitized video that imageing sensor generates; Output unit is used for the information code output that obtains after the miniature image encoding decoding; Control module receives the information code of image recognizing and processing unit output, and controls output unit it is exported.Particularly, this output unit can be the display module that comprises display screen, also can be the audio frequency output module that comprises loudspeaker.
See also shown in Figure 2; Be that anti-counterfeit certificate of the present invention is applied in the synoptic diagram on the bottle; Above-mentioned miniature image encoding 10 is printed on anti-counterfeit certificate 1 surface; Form by a plurality of little elementary areas 16, and distinguish different miniature image encoding 10 with the array mode of a plurality of little elementary areas 16 in each miniature image encoding 10, and these a plurality of little elementary areas 16 be combined to form human eye the minute pattern that can not discern.In this accompanying drawing 2 anti-counterfeit certificate is arranged on the bottle top, also can be arranged on each position of other article to be tested, also independently be placed on false proof voucher in the packing box.In addition, also be provided with identifying code 2 on the bottle, be convenient to the examination personnel and check, this identifying code 2 is and character string identical by the unique information code that obtains in miniature image encoding 10 decoding backs or that be complementary.
See also Fig. 3, Fig. 4, shown in Figure 5; Fig. 3 is the synoptic diagram of the many groups of printing miniature image encoding on the anti-counterfeit certificate of the present invention; Fig. 4 is the synoptic diagram of little elementary area array combination structure in the miniature image encoding; Fig. 5 is the synoptic diagram of the state region set-up mode of miniature image encoding, to clearly demonstrate design of the present invention.Miniature image encoding 10 comprises a content-data portion 12 and a table header 14.According to present embodiment; Content-data portion 12 comprises 9 little elementary areas that are made up of 9 round dots 16; And described content-data portion 12 shared zones are divided into 9 state regions 18, thereby constitute one 3 * 3 planar state region arrays, are that each state region 18 includes a round dot 16.According to the design of present embodiment, the different putting positions of a round dot 16 capable of using in a state region 18 are represented a numerical value in the pairing achievement data.Specifically; As shown in Figure 5; One state region 18 can be divided into four virtual regions, and round dot 16 selectivity place lower right, lower left, upper left side, top-right four virtual regions one, to represent four different place values 00,01,10 or 11 respectively.Therefore, the place value shown in Fig. 4 content-data portion 12 is to be formed by little elementary area combinations of states that corresponding configuration among Fig. 6 concerns.Because of each said state region 18 is divided into four virtual regions, when each round dot 16 selectivity are arranged at one of four virtual regions, can make described content-data portion 12 have 4
9Combinations of states is planted in (=262144).Know according to above-mentioned; Utilize the putting position of little elementary area (being round dot 16) in the different virtual zone to come miniature image encoding is decoded; And being the duplicator, can not grasp the putting position of the setting of virtual region, little elementary area; Therefore, be to have high non-reproduction to the miniature image encoding of forming by a plurality of little elementary areas.
In the first embodiment of the present invention; Above-mentioned miniature image encoding is promptly printed the employed ink colors of miniature image encoding to distinguish mutually with the ink colors beyond the printing miniature image encoding with other ink printing of color phase region surperficial with anti-counterfeit certificate on the anti-counterfeit certificate surface; Described optical module is provided with lens and filter, and these lens amplify the optical image on anti-counterfeit certificate surface, and filter is with filtering with the different light of miniature image encoding color in the optical image.
In the second embodiment of the present invention, above-mentioned miniature image encoding is to be printed on the anti-counterfeit certificate surface with specialty inks, and light wave and common ink that this specialty inks is reflected under the rayed of specific wavelength are different; Information beyond the miniature image encoding of described anti-counterfeit certificate surface printing is with the common ink printing; Described optical module is provided with special light sources, filter and lens; This special light sources is surperficial at anti-counterfeit certificate with the rayed of specific wavelength; Lens amplify the optical image on anti-counterfeit certificate surface, and filter filters the light of specialty inks beyond the light-wave band that is reflected under the special light sources irradiation.
Fallback area with the common ink printing can be set on the above-mentioned anti-counterfeit certificate surface, represent the miniature image encoding of article to be tested to be printed in the fallback area with specialty inks; The color of common ink is identical with the color of specialty inks; Thereby utilize same color to mix the part of miniature image encoding and common ink printing, make common user when using micro-multiplying arrangement to observe, can't obtain little elementary area array structure of miniature image encoding.
In the third embodiment of the present invention, above-mentioned miniature image encoding is that the absorbing ink with a large amount of absorption infrared lights is printed on the anti-counterfeit certificate surface; Be printed with on the anti-counterfeit certificate surface of miniature image encoding with the information beyond the non-absorbing ink printing miniature image encoding that does not absorb infrared light; Described optical module is provided with infrared light supply, filter and lens, and this infrared light supply is radiated at the anti-counterfeit certificate surface with infrared light, and lens amplify the optical image on anti-counterfeit certificate surface, and filter filters the light wave of frequency beyond the infrared band.Particularly, above-mentioned absorbing ink is advisable with the printing ink of carbon containing.
Be printed with the fallback area with non-absorbing ink on the above-mentioned anti-counterfeit certificate surface; Represent the miniature image encoding of article to be tested to be printed in the fallback area with absorbing ink; The color of non-absorbing ink is identical with the color of absorbing ink; Thereby utilize same color to mix the part of miniature image encoding and non-absorbing ink printing, make common user when using micro-multiplying arrangement to observe, can't obtain little elementary area array structure of miniature image encoding.
Above-mentioned identifying code can be printed in outside the fallback area, also can be printed in the fallback area, and with the color printing different with the fallback area ink colors.In addition, identifying code is arranged at the anti-counterfeit certificate surface with false proof mode and is advisable, and this false proof mode comprises identifying code is arranged at the anti-counterfeit certificate surface with the watermark form, perhaps with identifying code with the ink printing that comprises ultraviolet fluorescence powder in the anti-counterfeit certificate surface.
See also shown in Figure 3, be the present invention through checking the method flow diagram that miniature image encoding and identifying code are discerned the false from the genuine, its method is following:
The anti-counterfeit certificate surface printing represent these article to be tested identifying code and with the miniature image encoding of this authentication code matches, the information code that obtains after this miniature image encoding decoding is corresponding with identifying code;
Optical module obtains the optical image after the anti-counterfeit certificate micro-amplification in surface, and by imageing sensor this optical image is generated as digitized video;
Whether image recognizing and processing unit inspection from the digitized video that imageing sensor generates exists miniature image encoding; If do not exist; Wait for that then imageing sensor sends the digitized video there is miniature image encoding, or inform through output unit and not contain effective miniature image encoding in this anti-counterfeit certificate;
If there is miniature image encoding in the digitized video, then pick up this miniature image encoding and be decoded as and its unique corresponding information code, control module control output unit is with this information code output;
The information code of output unit output is compared with the identifying code of anti-counterfeit certificate surface printing, if information code identical with identifying code or be complementary anti-counterfeit certificate for true, if inequality or be not complementary then anti-counterfeit certificate is vacation.
Claims (9)
1. miniature image encoding recognition device that is complementary with anti-counterfeit certificate is characterized in that this miniature image encoding recognition device comprises:
Optical module is used to obtain anti-counterfeit certificate surface microscopic magnified optical images; Imageing sensor, the optical image that optical module is obtained is generated as digitized video; Image recognizing and processing unit is picked up miniature image encoding, and this miniature image encoding is decoded as and its unique corresponding information code from the digitized video that imageing sensor generates; Output unit is used for the information code output that obtains after the miniature image encoding decoding; Control module receives the information code of image recognizing and processing unit output, and controls output unit it is exported.
2. miniature image encoding recognition device according to claim 1; It is characterized in that: described optical module is provided with lens and filter; These lens amplify the optical image on anti-counterfeit certificate surface, and filter is with filtering with the different light of miniature image encoding color in the optical image.
3. miniature image encoding recognition device according to claim 1; It is characterized in that: described optical module is provided with special light sources, filter and lens; This special light sources is surperficial at anti-counterfeit certificate with the rayed of specific wavelength; Lens amplify the optical image on anti-counterfeit certificate surface, and the light that filter is reflected specialty inks under the special light sources irradiation light-wave band is thought filters.
4. miniature image encoding recognition device according to claim 1; It is characterized in that: described optical module is provided with infrared light supply, filter and lens; This infrared light supply is radiated at the anti-counterfeit certificate surface with infrared light; Lens amplify the optical image on anti-counterfeit certificate surface, and filter thinks that with infrared band the light wave of frequency filters.
5. miniature image encoding recognition device according to claim 1; It is characterized in that: described anti-counterfeit certificate surface printing is used to verify the identifying code and the miniature image encoding corresponding with identifying code of article genuine-fake to be tested; This miniature image encoding comprises a content-data portion and a table header; It is made up of a plurality of little elementary areas; And distinguish different miniature image encoding with the array mode of a plurality of little elementary areas in each miniature image encoding, and these a plurality of little elementary areas be combined to form human eye the minute pattern that can not discern; Described miniature image encoding can obtain and its unique corresponding information code through said miniature image encoding recognition device decoding, and the information code that obtains after this miniature image encoding decoding is corresponding with said identifying code; Through the information code of said output unit output and the identifying code of anti-counterfeit certificate surface printing are compared, confirm the true and false of anti-counterfeit certificate.
6. miniature image encoding recognition device according to claim 5 is characterized in that: said identifying code is and character string identical by the unique information code that obtains in miniature image encoding decoding back or that be complementary.
7. miniature image encoding recognition device according to claim 5 is characterized in that: the content-data portion of said miniature image encoding comprises 9 little elementary areas that are made up of 9 round dots.
8. according to the said miniature image encoding recognition device of claim 7; It is characterized in that: the shared zone of described content-data portion is 9 state regions; Each state region includes a little elementary area; Utilize the different putting positions of a little elementary area in a state region, represent a numerical value in the pairing achievement data.
9. miniature image encoding recognition device according to claim 8; It is characterized in that: said each state region can be divided into four virtual regions; Little elementary area selectivity places lower right, lower left, upper left side, top-right four virtual regions one, to represent four different place values respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210122199 CN102682268A (en) | 2008-05-27 | 2008-05-27 | Micro image code recognition device matched with anti-counterfeiting certificate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210122199 CN102682268A (en) | 2008-05-27 | 2008-05-27 | Micro image code recognition device matched with anti-counterfeiting certificate |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810113068 Division CN101590761A (en) | 2008-05-27 | 2008-05-27 | By checking the anti-counterfeit certificate that miniature image encoding and identifying code are discerned the false from the genuine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102682268A true CN102682268A (en) | 2012-09-19 |
Family
ID=46814169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210122199 Pending CN102682268A (en) | 2008-05-27 | 2008-05-27 | Micro image code recognition device matched with anti-counterfeiting certificate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102682268A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938087A (en) * | 2012-10-19 | 2013-02-20 | 沈志豪 | Induction identification card and identification method thereof |
-
2008
- 2008-05-27 CN CN 201210122199 patent/CN102682268A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938087A (en) * | 2012-10-19 | 2013-02-20 | 沈志豪 | Induction identification card and identification method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103201118B (en) | Method and device for producing colour images by way of a uv laser on pigmented substrates, and products produced as a result | |
| US8542094B2 (en) | Apparatus and method for secure detection of an item and a method of securing access to information associated with the item | |
| JP6669407B2 (en) | Secret Secure Document Registration System | |
| US7046346B2 (en) | Optoelectronic document reader for reading UV / IR visible indicia | |
| US11715309B2 (en) | Method for producing security elements in an image which are not visible to the human eye and cannot be copied, and printed image | |
| CN102267299A (en) | Near-infrared absorbing ink and near-infrared non-absorbing ink combined anti-counterfeiting method | |
| CA2375577C (en) | Optoelectronic document reader for reading uv / ir visible indicia | |
| CN101590761A (en) | By checking the anti-counterfeit certificate that miniature image encoding and identifying code are discerned the false from the genuine | |
| CN102673220A (en) | Anti-counterfeiting certificate capable of distinguishing truth and falsity through checking micro image codes and verification codes | |
| CN101590762B (en) | Method for genuine or counterfeit identification by checking micro image code and verification code | |
| CN101590759B (en) | Anti-counterfeit certificate printed with micro image code | |
| CN101590764B (en) | Method for genuine or counterfeit identification by identifying micro image code | |
| CN102682269A (en) | Anti-counterfeiting system used for anti-counterfeiting by matching relationship between micro image code and verification code | |
| KR100879961B1 (en) | Puzzle Typed KeyCode With Image, and Security System and Method Using It | |
| CN101590763B (en) | Anti-counterfeit system utilizing matching of micro image code and verification code to prevent counterfeit | |
| CN102682268A (en) | Micro image code recognition device matched with anti-counterfeiting certificate | |
| WO2007072795A1 (en) | Card capable of performing true/false judgment by a fluorescent particle chip | |
| CN101590760B (en) | Anti-counterfeit system of micro image code | |
| CN103761555A (en) | Image anti-counterfeiting recognition method applied to motor vehicle driving licenses | |
| CN102673221A (en) | Miniature image code printed on surface of anti-counterfeiting certificate for representing article to be inspected | |
| CN202138079U (en) | Near-infrared absorbable ink and near-infrared non-absorbable ink combined anti-counterfeiting structure | |
| US11749048B2 (en) | Method for authenticating a secure document | |
| WO2009143731A1 (en) | An anti-forgery system and its method for identifying the truth of an object by verifying a micro-code and a verification code | |
| CN103729671A (en) | Image anti-counterfeiting recognition method for transportation bill | |
| CN101546443B (en) | Attendance device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120919 |