CN1088876C - Holographic enhancement of card security - Google Patents
Holographic enhancement of card security Download PDFInfo
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- CN1088876C CN1088876C CN 94105316 CN94105316A CN1088876C CN 1088876 C CN1088876 C CN 1088876C CN 94105316 CN94105316 CN 94105316 CN 94105316 A CN94105316 A CN 94105316A CN 1088876 C CN1088876 C CN 1088876C
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Abstract
The present invention relates to a secrecy system of a reinforced card, wherein machine-readable magnetic stripe on a card comprises an optical readable part. The optical readable part can comprise a hologram image of a bar code or other usually known optical digital information generating components. Machine-readable magnetic performance and the optical information of a check code are converted to an electric pulse, or the machine-readable magnetic performance is combined to the optical information of the check code according to the information of a central card verifying center of the current trading validity, or magnetic performance which can not be independently read can not be combined with the optical information; consequently, the trading validity is negative.
Description
The present invention relates to the method for the reliability that increases credit card, I.D., driving license and similar card, and relate to this class card.
In the credit card stage in early days, bank does not provide credit card with making any distinction between, is undemanding to the control of invalid credit card yet.Therefore, exist considerable have on it this Bank Name, may be by the employed invalid credit card of criminal.In addition, when real credit card is no longer valid, because these cards lack the confidentiality marking, thereby make criminal be easy to produce themselves forgery card, and this " trade " got up a lot of people's affluences.
Along with the increase of this loss of bank, bank takes measures more and more to shrink and provides credit card to the client who has approved and the confidentiality when increasing design and making card self.Can consider multiple measure, but can use a paillon foil, this paillon foil is pressed in a grating that can produce hologram diffraction on the front of card, and this has just eliminated the card of the main crime source-forgery of card effectively.Regrettably, criminal still has three kinds of other main swindle possibilities at least.
First is to use the card of stealing or losing, and this card can use until everyone and report that this card has been lost or quilt has been stolen.Second be to use by recompile to other out-of-date or abandoned but before be " very " account number on the effective card.The 3rd be to use (not having card) effectively account number or " in vain " of having a magnetic stripe block, described magnetic stripe is used for auto-teller (ATM) or telephone set, in auto-teller or telephone set.Above-mentioned card is not differentiated by the people but is only read by machine.In fact, to declare in addition the 4th kind of swindle form of card right again.In this area, the hologram image of VIP card and visa used 8 years.Soon, utilize enough technology to produce the counterfeit that can make us accepting with having the people.Concerning the printer who encrypts, when having pitched than the leading major step of adulterator.
Technology does not have any way to above-mentioned first kind of fraudulent act at present.But the present invention can increase reliability effectively to prevent second and third and the 4th kind of fraudulent act.
In typical credit card trade process, the shop-assistant checks credit card, if this card is effectively, then such as by open (Chang) people's disclosed (No. the 4788420th, United States Patent (USP)) of etc.ing and quilt quoted from this paper with magnetic reading machine as a reference on scratching this credit card once.Described reading machine returns to the discriminating source with account access identification number.If reaction that should the discriminating source is approved, will conclude the business.Legal card holder finally can receive the bill that he will pay the bill or refuse.If belong to proper refusal bill, so, because above-mentioned magnetic reading machine provides approved as described above real account access identification number, so bank has to stand a loss the most at last.The phenomenon that Here it is can occur in first and second kinds of fraudulent acts.
The accounts access identification number and the registration number that are written to or are encoding in the described magnetic stripe are closely similar.Do not have a lot of information on the license plate, do not have a lot of information in the above-mentioned magnetic stripe yet.Real valuable information all sequentially is stored in the very capable infosystem as payment history, name etc. when mother client is unmarried.Usually have only by inquiring about above-mentioned information word labour and could obtain effective credit situation.
Like this, the licence plate or the registration number of said circumstances and automobile are similar, in this information field, do not store too many information, and be the hand labour that a kind of acquisition is stored in the information in the archives of mobile management place (De-partment of Motor Vehicle).
Concerning the businessman, can come a small part (validity of current card, effective credit situation) of the relevant customer information of access bank by employed electric network when coming scratching or magnetic to read card with the equipment that can read or report the transaction situation at present.
When what be used for criminal intent usually can received credit card be imperfection and when less, concerning determine will the criminal of crime, obtain true but out-of-date credit card on the profile and change its magnetic information and will due date and name be stamped into the front of this card again, comparatively speaking than being easier to.When to the elimination of original name and again impression be perfect inadequately, but will be familiar with this class and be swindled the people of means and do detailed inspection by those the time, the attempt of these swindles generally all can be successful.After this, when the above-mentioned card of scratching, can confirm valuable credit account, the scratching chance provides green and proves that transaction is effective or make validate transactions.
In some cases, particularly under the situation of using auto-teller, the needed blank card that just has tape of criminal, but then be composed of the PIN (PIN) of effective account access identification number that magnetic reads and the victim of not becomeing suspicious as yet on the described tape.Also exist many places, call box and supermarket, there, do not need the PIN number, the shop-assistant does not verify actual credit card yet.
Magnetic code was maintained secrecy prevent the long-term and bold trial of changing thereby existed already.The Watermark that Thorne-E MI company is produced
TMThe board tape is exactly wherein a kind of.High oersted (magnetic field intensity unit) tape of 3M company exploitation and other product are wherein another.They have all improved reliability by the mode of oneself limitedly.But, because the two all will change required separately production run, so they are not all adopted aborning.
The method of Thorne-EMI company is to be in the production run at tape a series of numbers are enrolled in this tape in the mode of magnetic, and after this available magnetic reading machine reads above-mentioned number.Produce the difficulty of this tape and will keep the sequential counting coding to hinder above-mentioned thought and method, and, it is generally acknowledged that cost is too expensive.
The scheme of 3M company is the scheme under a kind of like this condition, and promptly high coercive tape need have more powerful encoding device than the used equipment of tape (industrial standard) coding of giving 300 oersteds.Say that to a certain extent this equipment is to be difficult to obtain, but reliability increases more or less to I haven't seen you for ages.Yet industry member still might turn to high coercive tape.This just requires all service departments with own issuer (Service Bureaus) and bank to buy a new encoding device at least so that progressively adopt it in a period of time.Do not do the group of this work there being strong reason, this is a bigger equipment investment, and, do not illustrate that this high coercive encoding device can be by the employed index of offender yet.As mentioned above, only be the progress of having only to a certain degree at most.
With regard to all situations, what have simple device can be placed on any card in the magnetic reading environment per capita already to read its magnetic code.Even this number is not represented in all senses in the mode of code or password, but still can be easy to duplicate the number of this encode or encipherment.That past lacked and to be solved by this invention is another layering number that can not read with common equipment, and this number can enroll in the described magnetic stripe in the mode of cost one benefit preferably.
No matter how complicated and exquisite it is in all effort that comprise the magnetic code algorithm, all be imperfect, this be because, this coding is a whole magnetic sign indicating number original or that forge, and this magnetic sign indicating number is read this magnetic reading machine by the magnetic reading machine and then above-mentioned magnetic sign indicating number passed to bank for check along communication line.
Solution to the problems described above existed in " lot number " already, and the producer of card is imprinted on this lot number on the most credit card.Usually this number is the number of 4-digit number, and this number can find on all U.S.'s express delivery cards (American Express Cards) and current some VIP card (Master cards).If there is certain reason to suspect that a transaction has duplicity, can go to verify that a) lot number is really and not steal and b by phoning the bank of issue sometimes) on the card about unique individual's magnetic information whether and the lot number of card face be complementary.Thereby the validity of card and actual card are connected.
This is the mode of the differentiation fraudulent act of a kind of imperfection and effort, and can only show and the unbecoming-youth that promptly wears glue base fabric footwear that concludes the business attempts to buy a new car-time or just do like this under the situation that this class goes against accepted conventions with card the people that card is provided.
Another kind method is by Tu Mingshan people such as (Tominyama) invention in No. the 4855584th, the United States Patent (USP) on August 9th, 1989.They have invented a kind of " compound " that carries out with machine and have read the method for above-mentioned card, rather than the authentication data of making a phone call as previously mentioned.But in their method, the people need stash " proof medium " by the bar code that utilizes the effect of actual magnetize bar.This is impossible in practice not only, and, even people not phase credit " magnetic reading machine " reads the necessity of bar code (this yard is to become by 4 routine 30-39 line printings with the magnetic China ink) and printing bar code is become can only read with infrared reading machine, owing to should implicit information also be a kind of magnetic medium, thus determine will crime the adulterator still can be with this decrypts information.
What criminal will do is to duplicate above-mentioned whole number.This problem is with produce can not be similar with the trial of optics security structure that color copy machine duplicated or system.As long as naked eyes can see above-mentioned security structure, then color copy machine also reproducible they.Carried out various trials already so that duplicating machine lost efficacy, and in this cataloged procedure, the work of all (minimizing is the devil and infeasibility) has been failed all.The problem that faces the checking credit card is not final problem, and, should adopt a kind of novelty and practical scheme.
The present invention program's basis is in practice the number that will verify to be divided into two groups of data, compiles on the common magnetic stripe for one group, and another group is then compiled to a material piece that can read with optical mode.For example, this material that can read with optical mode is a hot stamping at paillon foil and is fixed on bar code hologram image on the card.In addition, this optical material also can as described in No. the 4684795th, the previous United States Patent (USP) of the author (this paper quoted from this patent with as a reference) be segmentation and combine with magnetic stripe.
The invention provides a kind of method that improves the I.D. reliability, the step that it comprises is: a part of reference numbers Series Code is write on the magnetic stripe; With another one reference numbers at least be programmed into one can be optically read part on; It is characterized in that, the above-mentioned reference numbers of another one at least is added into described part identification number word string, so that fully verify this card; And a check code is programmed on the above-mentioned magnetic stripe, this check code is by the attaching part branch decision of part numeric string on the above-mentioned magnetic stripe and the above-mentioned reference numbers of another one at least on can optically read part.
The present invention also provides a kind of certificate, and it comprises: a bearing bed; Magnetic stripe on the above-mentioned bearing bed, this magnetic stripe comprise the first local identities serial data; On the above-mentioned bearing bed can optically read part, this part comprises the second local identities serial data; And checking data, this checking data is determined by the above-mentioned first and second local identities serial datas are added to together, is being comprised said checking data in the above-mentioned magnetic stripe.
According to most preferred embodiment of the present invention, used the check code with various ways of common delivery several 9,10,11 or 12.Therefore all check codes, by adding the single number on this radix string end, can check the correctness and the authenticity of this radix a radix is made multiplication and division, add computing.Like this, can depend on the check code of modular arithmetic from 0 to 9, be 123453 being added to one as a series of numbers of 12345.If in digital 123453, exist and put or transposition error, promptly become 132453, check code then no longer is digital 3, thereby can see a sign or a mistake.
Have no to ask with fixed attention, a check code is set for the account number of credit card holder, still, because the magnetic sign indicating number that criminal can read on the general card promptly 123453 also copies to this sign indicating number on the tape, thereby with regard to the reliability of field on the relevant magnetic stripe, above-mentioned check code no longer works.
Described check code and should be as the part of above-mentioned magnetic stripe preferably not on above-mentioned silver or part that can be optically read.Described optical material has the number that one or more formation identification codes are formed part.Like this, if criminal takes out the card that has used the present invention but only had magnetic code information, so, owing to check bit does not match, so this card can be rejected.And if taken out the true card that does not use the present invention and therefore only have magnetic code information, so, this card will be as really being accepted.Both without system do not choose yet handle card with regard to can distinguish have can optically read part card with do not have can optically read part this work of card carry out automatically.
As described in No. the 4684795th, the previous United States Patent (USP) of the author, by magnetic stripe is matched with an outside visible hologram image, the present invention can play a role very effectively.So, do not match with magnetic stripe so that the present invention when working when requiring with above-mentioned hologram image, using the best of the present invention or best method is that holograph and magnetic stripe are combined.
Like this, when holograph magnetic stripe that use combines, concerning the shop-assistant, as long as by a card of an electronic reading machine " scratching ", this reading machine can read described magnetic stripe and enroll number in the hologram image.
Therefore, the present invention utilized newer relatively with machine read the ability of existing hologram image and in the past read the ability of magnetic stripe with machine.Certainly, machine-readable equipment and feature thereof are different.Can read above-mentioned hologram image with bar code or laser diode system, and read described magnetic stripe with the magnetic reading machine.But these two kinds of reading machines all convert the content that is read to electric signal, and this just electric signal can be used as a whole number and merged, and receives and computing.An aspect of the present invention's novelty is that two kinds of different technology that will can obtain on market combine, but comprehensively before resembling anything but advances in the single device.Be conceived to this point, above-mentioned thought is very simple: you are the image that " as long as reading " usefulness holograph mode forms, so that convert this optical image to black and white strip, the bar code reader that this striped can be modified or other optical character reader that should " number " convert machine-readable numerical information to can be understood subsequently, simultaneously, also to read the magnetic information that same general-purpose computers are handled.Above-mentioned " vision " information susceptible of proof magnetic information, but in this magnetic information, do not occur, therefore, this information can not be transferred on " transparent plastic " or other people the out-of-date credit card that abandons/reclaim.The other novelty of the present invention shows: by above-mentioned hologram image and magnetic stripe being merged in the zone and simultaneously actually when the scratching card reading the information (magnetic and light) of two kinds " types " and increase the difficulty of imitation or forgery card significantly.Its reason is also not obvious but be known concerning the client.The magnetic flux of above-mentioned magnetic stripe is that unit calculates with the oersted, and this is the load that a kind of quite weak available machines used reads, thereby read head must be done real contacting so that read this content with this magnetic stripe.If printed additional any marking on above-mentioned silver, so, the degree of depth of ink powder will make this silver away from the standard device that reads this silver.In other words, if cheat above-mentioned optical reader, the necessity of making use of momentum its magnetic read operation was lost efficacy and, if no matter this magnetic read operation just can not provide its needed information for optical reader.
Described hologram image can have two or more machine-readable features.Any equal in the following method can make the present invention play a role, and, also exist other method of untapped research still.
First method is to form the hologram image that has a grid, and this grid can be reflective by certain angle.Therefore, form a holographic diffraction grating, this grating can be by certain angle diffracted ray when running into light, and this light can be recorded and equated by this receiver and a specific number by a receiver.Japan HK Spring company had developed a kind of commercial reader by constructing square grating already, and this reader can be distinguished and reach 1,000 kinds of different numbers.
Second method is to utilize diffraction grating (or holograph product) to form bar code, and wherein, the image of barcode stripes is positioned on the focal plane of hologram image, perhaps is positioned on the background of hologram image.The simplest technology should be able to make above-mentioned bar code appear on the described focal plane as visual striation.Here it is, and three nine-day periods after the winter solstice type bar code or staggered five is got two type bar codes.
When reading the holographic number that forever is stamped in the credit card holograph part, the most handy common magnetic reading machine technology reads the magnetic number.
Existing electronic reading equipment just can read the holographic number and the magnetic number of bar code form by scratching, and for purposes of the invention, above-mentioned holographic number needn't surpass individual digit 0 to 9 (also can be any amount of number).
Current, when bank provides credit card to individual man-hour, the service company that bank or bank employ is at two personal informations of managing blank credit card and record bank client everywhere.Under the situation that the active computer tape is operated, above-mentioned (usually by Datacard Corp. or FIMA design) encoding device emboss cards is also charged to magnetic stripe with client's name and account number.
When making holography, can form ten kinds of different H-1 images of bar code 0 to 9 with hologram image that tape combines.These images are enrolled in the described impression plate randomly, thereby in 100000 cards of having made, being similar to has 10000 each numbers.In manufacturing process, any given tape volume (holography/magnetic silver) is comprised be no more than one holographic bar code.This has just guaranteed to have only a holographic bar code on the given card of having made without doubt.By being on the above-mentioned impression plate, " multiple row " different number can accomplish this point.
The present invention has indicated the improvement to data card code machine, thereby this coding function reads the bar code that will be stamped on the card (blank card).Like this, this code machine can read for example digital " 4 ", after this then can receive the information from computer magnetic tape, and described computer magnetic tape then is installed in the account number of this specific card in the code machine/marking press of " 12345 ".
In order to replace magnetic code 12345 or check code to be used for account number and to encode 123453, described equipment will make above-mentioned bar code sense information and magnetic information combines and this number is read is 412345.The suitable check code that after this we will be adopted calculates and is assigned as digital 8.
Above-mentioned code machine can be stamped into name and account number 12345 the positive of card and in the mode of magnetic number 123458 be enrolled magnetic stripe.
When using this card with after discharge and in process of exchange, scratching formula reading machine will at first be watched the holographic number 4 in the bar code on the magnetic stripe.After this, reading magnetic head can read 123458.Intelligent chip can be verified digital 8 as 412345 correct check code.When this work be not under accurately instantaneous situation, finish the time, it should be finished in the glittering sufficient real time of green light that is positioned at this scratching formula reading machine end, card for confirmation is: a) have holographic condition; And b) has the magnetic number; C) above-mentioned magnetic number correctly with the digital associated of described holography.
Can consider to use 2 bar codes for example 43, go checking digital 4312345, perhaps consider to use more bar code thereby will select a bit check sign indicating number.The result still has only a bit check sign indicating number at the end of account number, but for criminal, this point is clearly, is 123458 because pass to the number that number that bank checks and approves the terminal of transaction promptly has relevant fiduciary capacity etc.That is to say current account number, rather than what impressed only is 12345 number.
Suppose that criminal takes out a card that includes the bar shaped magnetic number of simple brown, and this magnetic number is to be written as 123458 under the situation that has read genuine card (and finding that the magnetic reading machine has shown 123458).So, this criminal has just had all magnetic information and can obtain approval in this case.But, the scratching formula reading machine of auto-teller can not read holographic digital 4 do not accept digital 123458, this be since 12345 correct check code be 3 thus this reading machine only approve 123453 cause.If this criminal has another card that has the holographic marking, unless this hologram image is bar code 4 (or 43 or the multidigit number that uses of publisher), otherwise check code 8 is wrong and only can triggers red-label and can not this account of access or approved.
The electronic circuit that is used to make (being converted into electric pulse) magnetic signal and (yet converting the content of being read to electric pulse) bar code reader to link does not mutually exceed the scope of known electronic engineering technology.
Therefore, the described best approach is to make above-mentioned hologram image and is positioned at magnetic stripe on card one side and combines and improve the calculating punch (this machine is the magnetic reading machine basically) that has the card scanner that is used to read above-mentioned holographic information.
Below be to the explanation of most preferred embodiment of the present invention and comprised claim and the accompanying drawing that constitutes a part of the present invention, in the accompanying drawings:
Fig. 1 is the figure that shows general credit card front;
Fig. 2 is the figure that shows general credit card reverse side;
Fig. 3 is the figure that shows the present invention's credit card reverse side, and this credit card has a silver, and this silver has machine-readable magnetic and opticator;
Fig. 4 is that credit card among Fig. 3 is along the part sectioned view of VI-VI line;
Fig. 5 is the skeleton view that can read the machine of above-mentioned magnetic and opticator;
Fig. 6 is the block diagram of method of the present invention's checking credit card.
Fig. 1 and Fig. 2 have shown the certificate of known type.Credit card 2 has front 4, and it comprises with the alphabetic characters 6 of the impression of standard commercial credit card format record and hologram image 8.Hologram image 8 provides the means of maintaining secrecy under its situation that is difficult to duplicate.In addition, front 4 can also have seal in its surface in order to the supplementary of the explanation bank of issue, Card Type etc., and/or, this face 4 also provides an image usually.The character 6 that is impressed generally includes account No. 10, card put to effective date 14 of name 12, card of individual.The character 6 of impression can comprise other identification information that also can not comprise such as lot number 16.Fig. 2 has shown the reverse side 18 of credit card 2, and it generally comprises a magnetic stripe 20 and a seal hurdle 22.Similar to front 4, also can on the surface of reverse side 18, print additional supplementary and/or image.
In the past, hologram image 8 generally all is successful stop removing aspect the criminal activities all the criminal of input.Hologram image 8 generally also comprises a visually quite significant image except that the contained information that can not read with machine, that is to say, can do visual inspection to determine its validity to it by the commercial staff.
Fig. 3 and Fig. 4 have shown the most preferred embodiment of the present invention's certificate.One such as the basic unit 30 of making by plastics or similar material have the surface 32, this surface includes one holography/magnetic silver 34.This holography/magnetic silver 34 has hierarchy as described below.Scribble on the transparent plastic bearing bed 36 such as the clear polymer of 0.5 to 1 mil by buying the separating layer that the transparent cured matter modeling agent 38 that obtains is made on the market.This modeling agent is fixed to hologram image 40 on the bearing bed 36 and when heating in separable mode this bearing bed and hologram image 40 is separated.Being one or more transparent scuff-resistant coatings 42 and between above-mentioned hologram image 40 and modeling agent 38, selectively being mounted with one deck beaded glass 44 between hologram image 40 and the modeling agent 38.Scuff-resistant coating 42 is relatively hard to be installed in suprabasil tape so that be generally used for protection.Play a part such by containing the beaded glass that transparency lacquer constituted 44 coatings that diameter is generally less than 5 μ m beaded glasses: when the light of penetrating when the specific width of cloth runs into this coating, along with further checking, can read and record the synthetic light width of cloth and penetrate this certificate validity.Thereby hologram image 40 is to use such as what butanone was handled to be convenient to bonding iron protoxide 46.Highdensity iron protoxide 46 slurries are coated onto on the hologram image 40 with the photogravure plater.Iron protoxide 46 generally combines with bonding agent 48, and this bonding agent can be fixed the particle of iron protoxide 46 when drying, and, in heating process afterwards, can provide " bonding effect ", in view of the above holography/magnetic silver 34 for good and all is adhered in the basic unit 30.With holography/magnetic silver 34 is fixed on the card, and the step of described hot-pressing processing is by hot-pressing processing: 1) activated adhesive 48; And 2) by means of modeling agent 38 bearing bed 36 and hologram image 40 are separated.Bearing bed 36 play a part to provide one its be provided with the base of holography/magnetic silver, this bearing bed can be removed and abandon.
Fig. 5 has shown data reading terminal 50, and it has special advantage in the application facet of the credit check of selling goods.Terminal 50 comprises a cabinet 52, and this cabinet defines a whole certificate slit 58, and this slit extends along the right side of cover cap 52.Cover cap 52 defines the sidewall and the diapire of slit 58.One read head 64 is installed in the opening on one of above-mentioned sidewall, so that detect the magnetic data that is programmed on this certificate holography/magnetic silver when the certificate scratching is crossed magnetic head 64.One optical data reading machine 66 is installed in another opening on one of above-mentioned sidewall, so that detect the optical data that is programmed on this certificate holography/magnetic silver when the certificate scratching is crossed this reading machine 66.The electricity output of read head 64 and optical data reading machine 66 is transferred into circuit 68 so that handled as describing in detail with reference to Fig. 6.Terminal 50 also comprises: a keyboard 70 that is used for manual logging data; The display screen 72 that is used for video data; Data communication circuit 74 such as telephone wire, this circuit couples together the database 76 in a described terminal and a distant place.
Fig. 6 is that expression is read holography/magnetic silver 34 and with the process flow diagram of the method for the data access database 76 on this silver.Certificate scratching such as I.D. is crossed the slit 58 on the terminal 50, thereby makes holography/magnetic silver 34 in the front of read head 64 and optical data reading machine 66 process.Shown in label 80, read head 64 detects the magnetic part that is provided at data on this certificate.For example, these data can be represented a part and the check code (12 3456-7) of account access identification number (12 3456-7).Shown in label 82, optical data reading machine 66 detects the opticator that is provided at data on this certificate simultaneously.Still with above-mentioned example, these data can be represented another part of account access identification number (12 3456-7).Shown in label 84, circuit 68 will couple together from the signal of read head 64 with from the signal of optical data reading machine 66, thereby form a complete account access identification number that has a check code.Shown in label 86, accurately calculate this account access identification number and the result is compared with check code to determine the validity of this certificate.If this account access identification number is effectively, will between terminal 50 and database 76, carry out communication along data communication circuit 74.If it is invalid that this account access identification number has, just on display screen 72, provide suitable explanation.
Can make multiple modified version within the scope of the invention.Importantly, described magnetic and holographic data not necessarily will be included in the middle of the silver.For example, can be improved, can optically read data be comprised in the existing hologram image zone on the another side of the relative magnetic stripe of card on the throne thereby make to current I.D. (Fig. 1 and Fig. 2).When the magnetic form of data and holographic format are essential to the validity of checking card, also can conversion provide section data with magnetic and holographic format.For example, an available hologram image removes to read the account access identification number of writing with magnetic means fully, perhaps can the conversion magnetic part and the segmented mode of holographic account access identification number between partly.
Above-mentioned most preferred embodiment illustrated and that show is illustrative, rather than restrictive, and under the situation of the present invention's who does not break away from appended claim and limited spirit and scope, the expert of this technology can improve at an easy rate and change them.
Claims (8)
1. method that improves the I.D. reliability, the step that it comprises is:
A part of reference numbers Series Code is write on the magnetic stripe;
With another one reference numbers at least be programmed into one can be optically read part on; It is characterized in that, also comprise:
The above-mentioned reference numbers of another one at least is added into described part identification number word string, so that fully verify this card; And
One check code is programmed on the above-mentioned magnetic stripe, and this check code is by the attaching part branch decision of part numeric string on the above-mentioned magnetic stripe and the above-mentioned reference numbers of another one at least on can optically read part.
2. method according to claim 1 is characterized in that, the step that it also comprises is:
With above-mentioned magnetic stripe and can optically read part be installed on the plastics certificate of impression.
3. method according to claim 1 is characterized in that, the step that it also comprises is:
Above-mentioned relatively magnetic stripe stack said can optically read part.
4. certificate, it comprises:
One bearing bed;
Magnetic stripe on the above-mentioned bearing bed, this magnetic stripe comprise the first local identities serial data;
On the above-mentioned bearing bed can optically read part, this part comprises the second local identities serial data; It is characterized in that, also comprise:
Checking data, this checking data is determined by the above-mentioned first and second local identities serial datas are added to together, is being comprised said checking data in the above-mentioned magnetic stripe.
5. as the certificate as described in the claim 4, it is characterized in that described bearing bed is a kind of impression plastic cards.
6. as the certificate as described in the claim 4, it is characterized in that described can optically read part be a hologram image.
7. as the certificate as described in the claim 4, it is characterized in that described can optically read part be a hologram image that is at least the bar code of one digit number sign indicating number.
8. as the certificate as described in the claim 4, it is characterized in that, above-mentioned relatively magnetic stripe stack described can optically read part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94105316 CN1088876C (en) | 1994-04-28 | 1994-04-28 | Holographic enhancement of card security |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94105316 CN1088876C (en) | 1994-04-28 | 1994-04-28 | Holographic enhancement of card security |
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| Publication Number | Publication Date |
|---|---|
| CN1111021A CN1111021A (en) | 1995-11-01 |
| CN1088876C true CN1088876C (en) | 2002-08-07 |
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| CN 94105316 Expired - Fee Related CN1088876C (en) | 1994-04-28 | 1994-04-28 | Holographic enhancement of card security |
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| EP2878453A1 (en) | 2013-11-28 | 2015-06-03 | Authentic Vision GmbH | Object markings for optical authentication and method for their production |
| CN109532272B (en) * | 2019-01-07 | 2023-09-22 | 深圳熙卓科技有限公司 | System for rapidly manufacturing temporary identity card |
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1994
- 1994-04-28 CN CN 94105316 patent/CN1088876C/en not_active Expired - Fee Related
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