JPS63502705A - Method for preventing tampering with data carriers, tamper-proofed data carriers, and equipment for handling, processing, and monitoring data carriers - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] How to prevent tampering with data carriers, how to prevent tampering with data carriers, and how to prevent data carriers from being tampered with. Equipment for handling, processing and monitoring carriers Magnetic cards are generally used as data carriers.

Enter the magnetic track to protect these magnetic cards from being counterfeited. The data collected is almost always encoded in a more or less complex way.

Therefore, it is certain that the modification, or falsification, of data on magnetic cards can be largely prevented. It is.

However, the practical problem of tampering with magnetic cards is that low-value data carriers These devices are used to copy the contents of high-value data carriers onto magnetic tracks. The fact is that it cannot be prevented by any means. In order to prevent such alteration, It is necessary to evaluate the physical characteristics that represent the authentic nature of the data carrier.

For example, for this purpose, the data carrier may be given a random but characteristic eye. It is well known to have parts with visible properties. That piety is one of the conventional The method uses the transmitted light method and together with the data, the measured characteristic values are store. Another method involves the use of individual variations characteristic of the surface of the data carrier. occurs and this is evaluated in the Re1fax (sic) light. to this method According to Although it is indeed possible to establish the physical authenticity of the data carrier, this method Relatively insecure. Such a visible way to evaluate the physical characteristics of the real thing The problem with the medium is that it gets dirty easily. Furthermore, the evaluation equipment requires significant cost. This is also a major drawback.

Furthermore, although separate from magnetic tracks, they can be used virtually arbitrarily and in various ways. It is also known to employ similarly magnetic security measures placed at In this case, there are various magnetic parts, and the detected magnetic properties are called fk? 2 Safeguards exist to prevent deception when identifying, evaluating, and checking. So (7) In fact, the method described above is DE-A-2245028, 2745 No. 632, and also in GB-A-1244875 and US-A-3453598. It is shown.

A card with points for admission to swimming pools, cable trains, etc. is also often used. In this regard, the value of the admission card must be checked at the time of admission. if it reduces or increases the number of used points shown on the card. It is also possible to make it visible and easy to read. Therefore, that The owner of the card is responsible for determining the number of points remaining on the card and preventing their use. information about such disturbances.

In conventional devices, a thermal layer is attached to the card, where the card monitor device is equipped with a thermal layer. The entry is made by a thermoprinter installed. Various problems arise For example, if a card is inserted into a card monitoring device in a very dirty state and the This may damage the thermoprinter.

In addition, the information is filled in using a stamping printer and colored tape. Similar devices are also well known. The disadvantage in this case is due to its mechanical complexity. This means that such printers can only stock a small number of symbols.

If money has to be withdrawn from an automatic cash dispenser, -i, The magnetic card can be inserted in only one position, making it difficult to use such devices. For example, within the context of an entrance monitoring system, the output is very low. This results in a low rate.

In the case of monitoring a rights card, i.e. reducing the value of a part of that card, These cards are often pulled completely through the mouth. In this case, the ticket , or that the rights card is relatively easy to lose when released from the monitoring device. There is a point.

In winter sports, rights cards such as ski buses, point cards, etc. Only some are used. This is because those cards can be accessed by the owner using a code etc. This is because it must be visibly attached to the person's clothing. This is the card It is true that it is important to protect it from loss and make it easy to use, but during the scanning process, In other words, it is necessary to prevent it from being quickly pulled out of the mouth during the monitoring process. Therefore, the structure of the monitor device becomes complicated.

Therefore, the present invention simplifies such a method and creates data that is as unalterable as possible. carrier and equipment for handling, processing and monitoring this data carrier. It is based on the problem of

According to the invention, for this purpose an equalization of the magnetic coding of the data carrier is provided. The aim is for sexual deficiency to be valued as a genuine characteristic.

Such a lack of uniformity is relatively easily protected with respect to mechanical stress, and stains are There is no negative impact on the certainty of value.

It is also effective to evaluate changes in the thickness of the magnetic coating as a real feature. . In a preferred method, the first step is to apply a constant magnetic field to the magnetic coating. Yes, the second step is to scan the magnetic coating and find the uniformity in the coating. Signals caused by lack of equality are now evaluated as corroborative features. .

The data carrier carrying out the method according to the invention may be characterized in that the magnetic coating has a characteristic defect. It is characterized by uniformity. Ideally, these should vary in thickness In preferred embodiments, it is preferred to show that these non-uniformities are This is achieved by forming the film from two overlapping films, one of which The film is locally discontinuous. Another example is a magnetic coating. magnetically inert pigments, or to represent the inhomogeneity in the form of such materials. It can also be done.

In both cases, it is ideal to cover the magnetic coating with a colored film. .

Another preferred embodiment provides a machine-readable The other side of the data carrier is equipped with a magnetic coating to accept the data that can be read. Has an absorbent coating to accept visible and readable confirmations. so that All of the above points out that even under different environmental conditions the data For the easiest handling of the carrier, the magnetic coating should be applied with two magnetic strips. in the form of a cup, and place it parallel to one side of the card-shaped data carrier, and Advantageously, the extension is outside the axis of symmetry of the data carrier.

With minimum mechanical complexity, such data carriers can be used, especially with different thicknesses. In order to make it possible to read and write on objects and objects with embossed parts, etc. In a first embodiment of the device according to the invention, the data carrier is guided in a channel and two 1 by moving it between the reading and writing heads and between the two pressure rollers. One reading and writing head and one pressure roller on each side of the channel. , arranged symmetrically in the longitudinal direction, in the same direction, and in the same cross section, and the second The reading and writing heads are rigidly mounted, and the pressure roller is flexible. , i.e. movably mounted.

This way, even if the card is inserted with a 180° rotation in its plane, , the card carrier can be completely read. Also, - magnetic track A raised protrusion on the card body in close proximity indicates that the card is constructed in accordance with the present invention. does not interfere with complete magnetic reading.

In this regard, it is effective to drive two pressure rollers. these The rollers are mounted on a common shaft which is movably mounted at both ends and magnetically It is pressed in the direction of the head.

Downstream of the read/write unit is a station for reversing the data carrier. This allows the upper and lower positions to be reversed. Thus, the data key The carrier can be inserted in any position.

Furthermore, inkjet printers that move in the direction of movement of the data carrier It is effective to prepare the channel for As a result, even with magnetic confirmation, the card Prints on the absorbent coating in a visible and legible manner, even when using It will be done.

The basic effect of inkjet printers is that information is written without contact. That's true. Therefore, even if there are contaminant particles on the surface of the data carrier, the It will not damage the print head. Therefore, the device according to the invention is functionally non-functional. Provides a high level of certainty at all times. Yet another effect is that the data carrier It is possible to draw a desired graph print on the surface.

A preferred embodiment of the invention is such that the visible read head is It is characterized by being attached so that it moves with the motor. This is the printer's This has the effect that functional breakdowns are immediately detected. and data carrier table Any operation aimed at preventing contact between the surface and the ink should be performed using this method. In fact, it becomes even more difficult.

The optical operating head is configured as a barcode reader, so that it can be optically or It is also possible to mechanically read iii recognition items that are easy to read with the naked eye.

Furthermore, it is advantageous to include a stamping or punching device, and The data carrier is thus permanently deformed. Thus, the visual accuracy of Certified matters can be more safely observed. Even if the entries were later scratched off. However, it is certain that any name calculation process, i.e. use, will be made explicit by the persistence of the transformation. It becomes fruit.

The problems mentioned above regarding the complete retraction of data carriers suspended from cords are , in another embodiment of the device according to the invention, the fixed for drawing the data carrier through a mouth consisting of a device for detecting the service clip. This can be resolved by the fact that

Thus, easy handling is ensured, the card is protected against loss, and it Nevertheless, it is possible to completely draw the data carrier into the monitoring device. .

The device for removing the retaining clip may be driven magnetically or by an electric motor. It consists of a push rod that allows one fastening member on the fixing clip to Separated from Tacarya.

The fixing clip used in the device according to the invention can be pre-pulled by spring force. Ensure that the barred fastening member locks into the corresponding recess in the data carrier. Features.

The fastening member is configured in an arm of a lever, the second arm of which is in a rest position. At the time, it extends at an acute angle to the plane of the data carrier, so the fixing clip is attached to the mouth. Upon introduction, the second arm of the lever comes into contact with a projection in the mouth.

According to a preferred embodiment of the invention, the fastening member on the fastening clip is magnetic. or connected to a magnet in the mouth so that it moves with the magnet. Thus, The locking clip is inserted into the mouth and the fastening member is moved to its open position.

To improve the writing resistance of inkjet printers, one ink and the other The surface coating consists of a pre-dyeing product and a color developer, which react with each other. To provide a printing method that produces a color image when printing.

Another advantage of this method is that it can be used with any desired inkjet printer. This means that it is impossible to write on the print carrier. Therefore, the Even if you add repetitions or additions to your entry, it will be discovered.

The surface coating of the print carrier consists of a color developer and an ink consisting of a pre-dyeing product. including.

A suitable pre-dyeing product is a ferrous compound, and the developer is an acid compound. include.

With such inkjet printers, true markings are obtained.

However, other dyes and their pre-products can also be used. for example , those mainly composed of diazo compounds can also be used.

Hereinafter, the present invention will be described with reference to an embodiment of a system for monitoring and verifying cards of value. I will explain in detail as I continue. The invention can also be used in other systems, e.g. , by varying the individual components of the system to monitor entry and , can be used to check goods.

In the attached drawings, FIG. 1 shows a data carrier configured as a value card and having a fixing clip; is a plan view of Figure 2 shows this card when inserted into the mouth of a device that reads and identifies the card. Figure 3 shows another embodiment of the fixing clip in the closed position. It is a cross-sectional view of the example, Figure 4 shows this fixing clip in the open state, and Figure 5 shows the value card. This figure shows yet another type of fixing clip for the card.

Figures 6-8 show the structure of the value card, and Figure 9 shows the adhesive strip for pasting the photo. shows an example of a value card having a lip; Figure 10 shows the layered structure of the adhesive strip and Figure 11 shows the value card reading. and is a schematic cross-sectional view of a device for identifying; Figure 12 shows details of the ink jet printer, and Figure 13 shows a plan view of this device. show, Figure 14 is a cross-sectional view of the device in the area of the magnetic reading or writing unit. shows, Figure 15 shows a schematic diagram of the reversed position of the value card, and Figure 16 shows how to identify the value card. Figure 1 shows components of the system that can be read or devalued.

As shown in Part 16, a data carrier (1) in the form of a value card is Published by (86). This device draws cards from the card store (87). the card, fill it out in a visible and legible way, and include basic information, e.g. information such as the price of the card and the number of times the card will be used for admission purposes on the magnetic strip. Write in a machine-readable manner. Then the cards are released. This card The code issuing device (86) is controlled by the issuing computer (80). Publisher The computer (80) has an alphanumeric keyboard (81) and function keys. -board (82). These keys input the desired basic information used for.

Inputs and related operations are instructed by the display (83).

In addition, the dispensing computer (80) stores receipts and journals. It consists of a top printer (84). To monitor the data carrier (1) In other words, a card monitor device (90) is placed at an appropriate position to reduce the value. be placed. This card monitor device (90) is connected to the insertion slot ( 6). After inserting the data carrier (1), the basic information can be read magnetically. Depending on the type of card and the type of its rights, for example, Turnstale (95) is released. At the same time, the value of the card decreases and the amount spent is visible and easy to read. The card will be issued again. For communication with card holder, The code monitoring device also includes a lamp assembly (91) and a display (92). Ru. The display (92) can, for example, display information in case of inappropriate operation, etc. used for

Furthermore, the card monitor device (90) and issuing computer (80) are connect to each other through an intercom system. If you have any problems, please The user can press the call button (94) to contact the operator.

individual components, in particular the dispensing computer (80) and the card monitor; - devices (90) are directly electrically connected to each other, but not directly connected (but not mechanically). ability is possible. The device shown here is only an example; in principle, similar The system has multiple card monitoring devices and multiple dispensing locations. have

The first part shows a plan view of the negative side of a data carrier (1) in the form of a price card. child On the side is a visible and easy to read i+1! Acknowledgment matter (2) is shown, and it includes Contains essential information. Basic information may include, for example, the card's expiration date and its value. This includes the rating, time of issue, etc. Additionally, these data are also displayed with visible, easy-to-read bars. It is registered in the form of code (2'). This is shown in the text line (2#).

Furthermore, each line of text is further confirmed by stamping (3).

This means that for any visually readable confirmation operation, the number of debit operations is complete. It has the effect of being fully disclosed.

The data carrier (]) is connected to the cord by means of a fixing clip (4) and its The cord is then fixed in turn, for example to the card holder housing. That is normal In the (5) is effective when entering the automatic winding device. When used, code (5) is The card is pulled out from a take-up device (not shown), and the card is placed in a card monitor device (90 ) into the mouth (6). Figure 2 schematically illustrates this process in cross-section. , only some parts of the card monitor device (90) are shown in this drawing. do not have.

The fastening clip (4) consists of a U-shaped synthetic plastic part, in which the clasp is inserted. The retaining member (17) is attached with an initial elastic tension. Its fastening member (17) is here constructed integrally with the notch of the synthetic plastic part. The connecting web (21) acts as a torsion spring. When in rest position, The fastening member (17) is locked in a small hole (18) formed in the data carrier (1). It will be done. When the card is inserted into the mouth (6) of the card monitor device 1 (90), A photoelectric barrier (22) located in the insertion slot recognizes the insertion of the card.

As a result, a sliding shutter (7) beyond the insertion slot in the mouth opens.

The retraction roller (10) of the transfer mechanism grasps the card and moves it in the direction of the arrow (9). Pull in the direction. When the fixing clip (4) comes into contact with the mouth part (6), the data carrier A device is actuated to remove the fixing clip from the ear (1). This device is shown in Figure 2. In the embodiment shown in FIG. 6), which is operated by a tm stone (8). The pressing member (16) is a card By moving towards the surface, the fastening member (17) is lifted and the car Release Do. At the same time, the attachment is done with a clip, that is, the fixing clip is from the mouth (6). It is fixed so that it cannot be accidentally removed. Read the card, verify it, and record the value After being destroyed, this card is transferred again by the transport mechanism, i.e. roller〇0). It is inserted into the fixing clip (4) in the opposite direction to the arrow (9). Pressing member (1 6) retreats and the card is discarded again.

It is clear that the operation of card monitoring devices is substantially easier with such devices. It's obvious.

Figure 3.4 shows another type of fastening clip, Figure 3 is shown in this case inactive. The fixing clip is shown in the active state. The fastening member (17) is attached to one arm of the lever. will be accomplished. The second arm of the lever is at an acute angle to the plane of the data carrier (1). Stretch. When the price card is inserted into the mouth (6), this second arm a projection (19) that rotates the lever around a torsion spring (21) configured as ). As a result, the fastening member (17) comes off the small hole (18) of the card, release it. When the card (1) is ejected from the mouth (6), the card is rigid. As the service clip is retrieved, the lever is rotated to its inactive position and the retaining member (1 7) is locked in the small hole (18) of the card.

Figure 5 shows another example of the fixing clip (4) just before it is inserted into the mouth (6). show. In this example, a permanent magnet (2o) is introduced into the fastening member (17). in the mouth A magnet (20') is arranged on both sides of the data carrier (1), and this magnet The stone (20') is attached to the fastening member (1) when the fixing clip (4) is fully inserted. 7) is lifted by magnetic force, and the data carrier (1) is released.

The illustrated example shows that irrespective of the position in which the data carrier (1) is introduced into the mouth (6), Allows the fixing clip (4) to be removed. clip at one specific position The fixing clip (4) and a device for opening the clip in the mouth so that only the fixing clip (4) can be opened. Needless to say, it can also constitute a location. This means, for example, that a value card can be This is effective when it is necessary to insert it into a specific position. In such cases, fixed Connect the clip (4) and the card to each other only in one position. It is also possible to configure accordingly.

Figure 7 shows an example opposite to the side showing visible confirmation of the data carrier (1). Figure 6.8 shows a schematic cross-sectional view of the structure on both sides of the card. data carrier ( 1) consists of a basic body (1a) with an absorbent coach ink (15) on one side.

Particularly suitable for the basic body (1a) is cardboard, but the cards are quite Synthetic plastic or plywood materials are preferred in cases where the material will be exposed to strong stress. . If the basic body of the card is made of synthetic plastic material, absorbent It is effective to configure the coating (15) with two films (15a) (15b). It is fruitful. The film (15a) in particular provides adhesive properties and the film (15b) is designed to provide excellent absorption capacity.

According to FIG. 8, on the second side of the basic body (1a) there is a magnetic strip (12). For example, the magnetic strip (12) is covered with a white cover layer (12C). The magnetic layer (12a) is covered with a magnetic layer (12a). For example, the entire surface of the card should be covered with a protective face (1 4) covered by The magnetic strip (12) is machine readable. Acceptable confirmations, ie coatings, in a conventional manner. Strip (12 ), if the amount of data stored on the second magnetic strip (12’) is insufficient, You can prepare.

For the example of anti-tampering of value cards, this second magnetic strip (12') This will be explained in detail below. The anti-tampering device shown here is designed to accept data Now constructed on a single magnetic strip. Magnetic strip (12”) broke The first film (12a') has a portion (13). This first file The frame (12a') colors its entire surface, in other words, the area of the fracture (13). In the embodiment shown, the discontinuous film is covered by a layer of colored cover (12c). The film (1, 2a') is attached to a second film (12b') having a magnetic coating. Therefore, it is covered. The second film (12b'') includes one layer of inert cover (12b''). 2c), therefore, the magnetic strip (12') configured in this way is In the area of the break (13) there is an uneven portion in the form of a varying thickness. These defects Equal parts are invisible.

However, such non-uniformities can be caused by e.g. It can also be produced in another way by mixing with.

This magnetic strip (12') is thus exposed to a constant magnetic field and then When read, by changing the magnetic current, the interruption, i.e. the break ( 13) The inequalities caused by is produced in the leading head. For example, the number of electrical pulses or the Their position relative to a fixed point is evaluated. In this way, e.g. Since the number and position are placed individually on each value card, there is no physical corroboration for that card. You will get the following characteristics. However, the magnetic strip (12') usually Used exclusively for storing data. This method is limited to the example illustrated here. It's not something you can do. The basic idea is to keep the magnetic layer at a constant magnetic field during the reading process. After being exposed to a field, characteristic signals are generated due to the uneven parts. . Another practical effect is that special equipment is required for recognition of authenticity. Evaluation is perfectly possible even if the card is dirty or worn.

Evaluation also occurs by applying an alternating magnetic field, in which case the unevenness The signal changes.

Figures 9 and 10 show how data belonging to a specific person can be created by inserting a photo, for example. Another embodiment of carrier (1) is shown. For this purpose, the card is Only a part of the surface has an adhesive tab (11) on one side connected to the basic body (1a). do. According to FIG. 10, the adhesive tab (11) is a siliconized covering film ( tic), adhesive pad (llb), transparent film (lla), and outer transparent , an absorbent coating (15). When attaching a photo, use a covering film ( llc), insert the photo and attach the adhesive tab to the basic body (1a). Press. Write on the absorbent coating (15) before or after inserting the photo. can be entered.

FIG. 11 shows a data carrier such as that used for example in a card issuing device (86). (1) A schematic cross-sectional view of a device for reading and distinguishing is shown, and Fig. 13 is a plan view thereof. shows. This reading and recognition device consists of a transport mechanism that moves the card. this The transfer mechanism consists of a continuous belt ( 26) Teel, l: 1-ra (10') is the counter pressure roller (1o) and gear Therefore, the roller (10) is sequentially moved by the belt (25) by the shaft (63). ) is driven through. The shaft (63) is connected to the motor (23) by the belt (24). Connecting.

For example, if a value card (not shown) is sent in the direction of arrow (55), it is gripped by two rollers (28) and read optically or visually It is placed on the belt (26) and sent to the first station for confirmation operation. is then sent through a station where it is magnetically coated and finally loaded. (10) (10”). If the card is sent endlessly. , the cards are separated into individual cards by a cutting device (29).

The same device can be used for the card monitor device (90). There, As a general rule, the card is inserted in the direction of arrow (9).

However, the direction in which the card is sent is not important; the transport mechanism It is readily apparent that it can be pulled in and released in any direction. value card While the cards move, the cards are formed by two guide rails (62). You will be guided through the channels. Magnetic coding or magnetic card reading In this case, two pressure rollers (61) are attached to the shaft (63), and these The rollers (61) are symmetrical about the central axis of the channel. The axis (63) is the first As can be seen from Figure 4, both ends of the swing member (27) are attached so that it can move within the swing member (27). It is attached. The swinging member (27) rotates around the central axis of the motor (23). Turn around. By means of pressure rollers, the card is fixed rigidly and correspondingly such that it abuts a magnetic read head or write head (60) which is arranged to Pressed by The moving speed of the data carrier (1) is determined by one side of the pressure roller (61). is measured by the pulse generator Fit (64). Thus 1. day The tacariya (1) is read magnetically and does not depend on whether the card is rotated on that side or not. its magnetic strip parallel to one edge of the card, outside the axis of symmetry of the card, and parallel to one edge of the card. Filled out by trip.

This device is not used to issue cards, but to monitor cards. If the data carrier (1) is inserted in the wrong way, i.e. the magnetic layer is It is often inserted towards the Such cards also The above-mentioned device has a 15th It has a reversing station (70) as schematically shown in the figure.

This reversing station (70) has two retraction stations for the data carrier (1). It has rollers (71) which are adapted to a rotatable mounting body (74). are doing. This mounted body (74) is rotated 1801 times by the pinion (73) . As a result, both sides of the card are swapped. For example, if card (1) is inserted incorrectly. If the card is used, the card must be passed through the transport mechanism of this device for reading and and reaches the reversing station (70). Therefore, both sides of the card are replaced. and the card is reinserted into the transport mechanism. Then magnetic reading An operation or confirmation operation is performed.

In the transport mechanism there is a possibility of visually or optically reading the data carrier (1). There is a station where you can check what you can do.

This station consists of a carriage (31), which is It is designed to move in the transverse direction. This carriage (31) is intended for this purpose. For this purpose, it is attached to the guide rail (32) and the cable arrangement (42) and It is moved by the motor (41).

An inkjet printer (30) fixed to a carriage (31) provides a visual or to the absorbent coating (15) of the card in optically readable form. Fill out.

The carriage (31) has an inkjet printer (30) that moves together with the inkjet printer (30). An optical read head (40) adapted to be read is mounted. Thus, I whether the printer is fully operational, i.e. clearly written You can set whether or not. Optical read head reads barcode machine-readable information on the barcode. used in the form and evaluated.

Furthermore, a punching device consisting of a pushing rod (50) and a cam (51) is arranged on the same surface. It is. This embossing device allows the writing lines on the card (1) to be used as data. This is confirmed by the embossment or continuous deformation of the carrier (1). Thus, with the eye Even after completely removing readable confirmations, the price of the card has changed. Since it is possible to recognize that the information has been tampered with, any fraudulent operations can be prevented.

What is shown in the enlarged view in Fig. 12 is the inkjet printer (30). (34) and how it functions will be described in detail. This shared is a jet hole (35), an ink duct (38), and a jet hole located behind the jet hole. It consists of a heating member (36). When this heating member (36) is heated for a short time, A vapor bubble is formed in the ink which causes the ink to drip (35) through the jet hole (35). 33) Accelerate. This drop is then applied to the absorbent coating (1 5) Fall. correspondingly controlling the inkjet printer (30); By moving the code is formed in the same way as a matrix printer. In other words, an entry is made.

The coating (15) on the ink and data carrier (1) is a preliminary dye product. When the ink hits the surface coating, its preliminary dye products, including the color developer and and the color developer are in contact, so when these two components react, color is formed.

The coating (15) contains a developer on the data carrier (1) and the ink is pre-dyed. It is effective if it contains a color product. Suitable pre-dye products include e.g. For example, it is a ferrous compound, and the color developer preferably contains an acid compound. For example, this eye For this purpose, gallic acid and phenolic acid are used.

Other dyes that have already been developed or dyes in the form of pigments are mixed with ink. Needless to say, it's great.

This color developing effect is due to the characteristic absorption properties of the components contained in the ink and coating. form a color with the desired dye so that the filling of the value card with the desired dye can be recognized In the case of surface coatings that ensure There is Neil alcohol, suitable pigment is silica gel, suitable Examples of color developers include phenolic resin, acid soil, and kaolin.

It is clear that the above-described system merely illustrates one specific application of the invention. That's it. Therefore, the invention is not limited thereto. Therefore, the system The individual components of the system or application can be varied in many ways.

FIG. 1 FIG.3 FIG, 6 FIG, 7 FIG, 9 FIG, 10 FIG. 11 FIG, 1/, FIG, 1s international search report a″　”’　PCT/AT　137100017ANNEX　τOTHE　IN TERNATIONAL 5EARCHRIJORT 0NINTERNATI ONAL API’tJCA’r Engineering ON No, PCT/AT 871000 17 (SA 16560) DE-A-274563220104/78 GB -A-15415790F103/79EP-8-C1172SB4 2610 2/86 NoneDE-A-33036fu 2 3010! II/84 EP- A, B 0118730 19109/84US-A-448018130/1 0/84 Non@FR-A-249221316104/82 NoneUS -A-429386306/10/81 None

Claims (1)

[Claims] 1. Data is written onto the magnetic layer and physically corroborated features of the data carrier are evaluated The non-uniformity of the magnetic coating of the data carrier is especially of card-shaped data carriers, characterized in that they are evaluated as confirmatory features. How to prevent counterfeiting. 2. Characterized by the fact that variations in the thickness of the magnetic coating are evaluated as a confirmatory feature. The method according to claim 1, wherein: 3. In the first stage, the magnetic coating is exposed to a constant magnetic field, and in the second stage The magnetic coating is read and any unevenness in the coating is detected. Claims characterized in that the signal derived from the The method according to any one of paragraphs 1 or 2. 4. Claim characterized in that the magnetic coating has a characteristic non-uniformity A data carrier for use in the method according to any one of the ranges 1 to 3. 5. Claim 4, characterized in that the non-uniformity is a variation in thickness. data carrier. 6. The magnetic coating consists of two overlapping films (12a', 12b'), One of the films is characterized in that it has local discontinuities (13). Data carrier according to claim 4 or 5. 7. Magnetic coatings are magnetically inert pigments, i.e. non-uniform materials in the form of substances. 5. Data carrier according to claim 4, characterized in that it consists of isomorphism. 8. The magnetic coating is characterized by being covered with a color film (12c) 8. A data carrier according to any one of claims 4 to 7. 9. One side of the data carrier (1) accepts machine-readable data The other side of the data carrier (1) is optically readable. Support absorbent coating (15) to accept visible confirmation. The device according to any one of claims 4 to 8, characterized in that Data carrier. 10. The absorbent coating (15) is transparent and covers the basic body (1a) of the card. It is characterized in that it is applied to the surface of the transparent adhesive film (11) that is exposed to water. 10. A data carrier according to claim 9. 11. The data carrier (1) side opposite the magnetic coating absorbs liquid ink Claim 9 or 1, characterized in that the coating (15) Data carrier according to clause 10. 12. The magnetic layer extends parallel to one edge of the card-like data carrier (1). in the form of two magnetic strips (12, 12') long and outside its axis of symmetry. The data according to any one of claims 4 to 11, characterized in that Takyariya. 13. Said data carrier (1) is guided in a channel (62) and 2 between the reading and writing heads (60, 60') and between the two pressure rollers (61, 60'). 61') so that one reading and writing can be done in a symmetrical relationship in the vertical direction. A head (60, 60') is arranged, and a pressure roller (61, 61') on each side of the channel (62), in the same direction and in the same cross section, The two reading and writing heads (60, 60') are rigidly fixed and driven by pressure rollers. (61, 61') is characterized in that it is movably or elastically attached; In particular, reading the data carrier according to claim 12 and/or the code device for attaching. 14. The claimed invention is characterized in that both pressure rollers (61, 61') are driven. Apparatus according to scope 13. 15. Both pressure rollers (61, 61') are attached to a common shaft (63), and the swinging member Claim 13 or 1, characterized in that it is mounted so as to be moved by The device according to item 4. 16. After said reading and writing unit (60, 61), a data carrier ( A station (30) is arranged for reversing the data carrier 1). Claims 13-1, characterized in that the upper and lower positions of the layer (1) are reversed. The device according to any one of paragraph 15. 17. The transfer mechanism that linearly moves the data carrier includes the data carrier ( 1) An inkjet printer that moves in a direction transverse to the direction of movement. characterized in that a reading and/or verification device consisting of a controller (30) is connected. to read the data carrier according to any one of claims 9 to 11. , and/or confirming equipment. 18. The optical read head (40) is integrated with the inkjet printer (30). Claim 17, characterized in that the device is adapted to physically move. equipment. 19. The channel (62) has an input for the final transformation of the data carrier (1). a stamping device (57); The apparatus according to any one of the desired ranges 13 to 18. 20. The inkjet printer (30) and the optical reading head (40) are A common carriage now moved by a motor along a guide rail (32) The device according to claim 18, characterized in that it is fixed to the engine (31). Place. 21. The optical read head (40) is characterized in that it is a barcode reader. The apparatus according to claim 18 or 20. 22. The reading and/or verification device includes at least one magnetic reading and writing head. (60) The device according to claims 17 to 20, characterized in that it consists of (60). 23. The data carrier (1) is a fixing clip attached to the carrier (1). (4) arranged to be pulled through the mouth (6) consisting of an opening device (8); The device according to any one of claims 13 to 22, characterized in that: Place. 24. When said device (8) is used for magnetic motors or electric motors , a pusher member (16), by means of which the catch on the fastening clip (4) Claims characterized in that the material (17) is released from the data carrier (1). 23. Apparatus according to paragraph 23. 25. A resiliently pretensioned fastening member (17) is provided, which is inactive. When in the moving position, it engages a corresponding recess (18) in the data carrier (1). Fixing clip for a data carrier according to claim 24, characterized in that . 26. Said fastening member (17) is configured on one arm of the lever, the second arm of which is When in the parking position, the lever extends at an acute angle to the plane of the data carrier, and the lever In order to insert the data carrier (1), the second arm touches the protrusion (19) in the mouth (6). Claim 25, characterized in that it pivots upon contact. Fixing clip as described in. 27. Said fastening member (17) is magnetic or magnetized to ensure movement. (20), and the fastening member (17) is moved to its inoperative position by a magnetic field. , the data carrier (1) is moved to an open position in which the data carrier (1) is released. The fixing clip according to claim 25. 28. The ink (33) on the one hand and the surface coating on the other hand are pre-dye products. and a color developer, and these components react together to create a color. In particular, by an inkjet printer according to claim 17, markings on the coated surface of the data carrier according to paragraph 9, 10 or 11; Printing method. 29. The surface coating (15) includes a color developer and the ink (33) includes a pre-dye. 29. Printing method according to claim 28, characterized in that it comprises a product. 30. Claimed characterized in that the preliminary dye product is an iron-(III) compound. The printing method according to scope 28 or 29. 31. The developer may include an acid compound, such as gallic acid or a phenolic compound. The printing method according to any one of claims 28 to 30, characterized in that: 32. Surface coatings produce binding agents, pigments that spread over the surface, and pre-staining. Particularly, the method according to claims 28 to 31, characterized in that it includes a commercial color developer. Claims to be filled out using an inkjet printer according to any one of the preceding paragraphs. 12. Surface coating according to item 11. 33. The pre-dyeing product is contained in the liquid medium in dissolved form, i.e. in the form of pigments. and forming a color when reacting with a color developer. The ink described in any one of Item 31.