JPH09251521A - Method for discriminating authenticity of rewrite magnetic card in reader/writer printer and its device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrict the usage of a forged rewrite magnetic card and to improve security without delaying processing speed and making a device large by showing barcodes on the rewrite magnetic card and providing a barcode sensor at an appropriate position in the device. SOLUTION: Magnetic data is read by a magnetic head 1d in a rewrite magnetic card data reading/writing part 1 through the use of the reader/writer printer and, in parallel with it, barcode data of the barcode M5 which is previously displayed in the rewrite magnetic card TCM is read by an adjacent barcode sensor 4. Respective kinds of data are stored in respective memory circuits, whether or not they coincide with previously decided respective pieces of information is analyzed by an arithmetic processing circuit and the rewrite magnetic card TCM is carried out of a carrier route W when the analysis result of non-coincidence is recognized in one of the respective kinds of data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention makes it possible to form a cloudy portion in a print recording layer for heating by heating with a thermal printing means, and furthermore, by heating it to make the printing portion transparent. A reader / writer printer that uses a rewrite (recycle) magnetic card that can be erased and can be used repeatedly for printing and erasing the same medium repeatedly. The present invention relates to a genuine / counterfeit discriminating method for preventing it and a genuine / counterfeit discriminating apparatus that can be used for implementing the method.

[0002]

2. Description of the Related Art A so-called rewrite magnetic card currently in use has a thermoreversible characteristic as known, and as shown in FIG.
A print recording layer a (8 to 9 μm) as illustrated in FIG.
A light reflection layer b (2 to 3 μm, made of polyethylene terephthalate) on the lower surface side and a protective layer c on the upper surface side, and a magnetic layer d is formed on the lowermost surface and the like.

In the print recording layer a, particles a ₂ of an organic low molecular weight substance (higher fatty acid) having a particle size of 1 μm or less are dispersed in a synthetic resin a ₁ , and as shown in FIG. 5 (B), In the transparent state on the left side of the line L, the particles a ₂ of the organic low-molecular-weight substance form a relatively large single crystal, and therefore the incident light e ₁ rarely passes through the interface of the single crystal and is scattered. Since it passes through without being processed, it looks transparent as a whole, and when a predetermined heat treatment is applied from this transparent state, the particles a ₂ of the organic low molecular weight substance at the heat receiving portion are shown on the right side of the line L. Like
Polycrystals are formed.

As a result, the incident light e ₂ is refracted many times at the interface of the polycrystal and scatters so that it looks white and becomes the above-mentioned white turbid state. When the rewrite card in the transparent state of the transmittance is brought into pressure contact between the printing thermal head and the printing platen roller to perform printing (heating) on the rewrite card,
When the heating temperature reaches a certain temperature, its transmittance drops sharply. Then, when it is further heated, it becomes an intermediate state between the maximum transparent state and the maximum cloudy state, and when it is cooled to room temperature from this state, it reaches the maximum cloudy state, whereby the printing on the rewrite magnetic card is completed. Of.

Here, when the rewrite card is heated, the temperature becomes within a certain heating temperature range, the cloudy state is suddenly erased and the transmittance becomes close to the maximum transparent state, and even if it is cooled to room temperature. The transparent state is maintained, and since the printing portion of the rewrite magnetic card obtained as described above is erased, the rewrite magnetic card can be repeatedly used for printing.

By making use of the thermoreversible characteristic of the rewrite magnetic card as described above, a reader / writer printer using rewrite magnetism has been put into practical use as is known, whereby printing by heating on the rewrite magnetic card. Therefore, the rewritable magnetic card is reused for the reader / writer printer.

[0007]

As described above, since the rewrite magnetic card is used for the reader / writer printer, the advantage that the print data of the rewrite magnetic card can be rewritten is abused and the print data is used by the user. Can be erased, and from this point, printing security cannot be expected. Therefore, in this type of rewritable magnetic card, a magnetic track is formed on the back side of the printing surface, and the security of the data depends on the magnetic data.

In telephone cards and the like, however, the forgery of the magnetic data is actually occurring, and the use of the forgery is also known. Therefore, by punching holes to prevent this, the amount of money is increased. I try to see the actual usage situation. Therefore, even if the rewritable magnetic card is used as a general prepaid card, it is difficult to spread the use of the magnetic data only by relying on the reading and analysis of the magnetic data by the magnetic head. Appropriate preventive measures are needed.

In view of the above conventional problems, the present invention determines the authenticity of a rewrite magnetic card when using a reader / writer printer. The bar code is displayed, and the reader / writer printer is equipped with a bar code sensor in the rewrite magnetic card data read / write section that reads magnetic data with a magnetic head as is known. Thus, the bar code data of the rewritten magnetic card transferred is read, and the counterfeit card is determined if the bar code data does not match the predetermined information.

In this way, according to the present invention, not only the security as the rewrite magnetic card is improved, but also the bar code sensor is not newly added at the front stage or the rear stage of the reader / writer printer body. In addition, by setting it near the magnetic head in the main body, it takes more time than before to read the rewrite magnetic card,
The purpose is to prevent the reader / writer printer from becoming large.

Next, according to claim 2, in the barcode according to claim 1 described above, not only is this displayed on the magnetic surface of the rewrite magnetic card, but a non-translucent covering film is further applied. It makes it invisible by covering it, making it even more difficult to forge barcodes,
We are trying to further improve security.

Further, in the authenticity discriminating device for a rewrite magnetic card in a reader / writer printer according to a third aspect of the present invention, a rewrite magnetic card to be carried into a card carrying path is provided near a magnetic head in a conventional reader / writer printer. By providing a barcode sensor that can read the barcode data by the applied barcode in parallel with the magnetic data of the rewrite magnetic card by the magnetic head, by utilizing the output from the barcode sensor,
By making full use of the memory circuit and the arithmetic processing circuit, the authenticity of the rewritable magnetic card can be determined with high reliability, and the authenticity determination method according to claims 1 and 2 can be performed satisfactorily. There is.

[0013]

In order to achieve the above object, the present invention, in claim 1, transfers a rewrite magnetic card from a slot of a reader / writer printer in a predetermined direction in a card transport path. First, in the rewrite magnetic card data read / write unit, a first operation of sequentially reading magnetic data by the magnetic head, a second operation of writing to the rewrite magnetic card by the magnetic head, and a second operation
The third operation of detecting the verify error is performed by comparing and collating the content written by the operation and the content read by the magnetic head, and then transferred to the thermal printing unit, and the print recording layer in the print window of the rewrite magnetic card is heated. In the process of performing the printing process by clouding, the bar code sensor provided near the magnetic head causes the bar code applied to the rewrite magnetic card to be used in parallel with the first operation of reading the magnetic data in the rewrite magnetic card data reading / writing unit. The bar code data is stored in the memory circuit together with the above magnetic data, and the arithmetic processing circuit analyzes whether or not the read magnetic data and the bar code data agree with the respective predetermined information, and the discrepancy occurs. Based on the analysis result of the Trying to provide an authenticity determination method of the rewritable magnetic card in the reader writer printer, characterized in that the the is discharged from the printer card transport path.

Next, in the authenticity determining method according to claim 2, not only the bar code according to claim 1 is displayed on the rewrite magnetic card, but also the surface thereof is covered with a non-translucent mounting film. The feature of this is that it is made invisible by coating.

Further, according to a third aspect of the present invention, a magnetic head is provided in the card conveyance path between the entrance side conveyance roller and the exit side conveyance roller of the rewrite magnetic card driven by the first drive motor. A rewriting magnetic card data reading / writing unit, a printing conveyance roller for the rewriting magnetic card driven by a second drive motor, a printing thermal head having a thermal head driving solenoid, and a printing platen roller. In the rewrite magnetic card reader / writer / printer, the rewrite magnetic card data read / write unit comprises: For rewrite magnetic cards that are carried in the card transport path near the head. A bar code sensor for reading the bar code data by the bar code in parallel with the magnetic data of the rewrite magnetic card by the magnetic head is provided, and the bar code data is input to the bar code sensor together with the magnetic data. A memory circuit is connected, and an arithmetic processing circuit that analyzes whether or not the read magnetic data and barcode data match each predetermined information, and the analysis result of the mismatch Thus, the authenticity determination device for a rewrite magnetic card in a reader / writer printer is characterized in that the first drive motor is operated to discharge the rewrite magnetic card from the card transport path.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Prior to explaining the authenticity determining method of claims 1 and 2 according to the present invention, the authenticity determining device of claim 3 will be described in detail below with reference to FIGS. In the example, similar to a general reader / writer printer, not only the rewrite magnetic card data reading / writing unit 1 and the subsequent thermal printing unit 2 are provided, but also preheating between the both units 1 and 2. It shows the case where the combined print and erase unit 3 is provided. Of course, in the present invention, the preheat combined print and erase unit 3 may be omitted.

Here, as is known, the rewrite magnetic card data read / write unit 1 is the first drive motor 1
The magnetic head 1d is provided in the card conveyance path W between the entrance side conveyance roller 1b and the exit side conveyance roller 1c of the rewrite magnetic card TCM illustrated in FIG. 2 driven by a. Mediums 1e and 1f indicate an entrance side conveyance belt and an exit side conveyance belt, and S ₁ and S ₂ indicate position detection sensors of the rewrite magnetic card TCM.

Further, the thermal printing section 2 mentioned above, as is also known, has a printing transport roller 2b for the rewrite magnetic card TCM which is driven by the second drive motor 2a.
A printing thermal head 2d having a thermal head driving solenoid 2c, and oppositely arranged and printing platen roller 2e, in the print window M ₂ formed on the printing surface M ₁ of the rewritable magnetic card TCM as shown in FIG. 2 The above-mentioned print recording layer a is structured so that it can be subjected to a print process due to cloudiness due to heating. S ₃ and S _{4 also} indicate a position detection sensor of the rewrite magnetic card TCM, and 2f indicates a print conveying belt. ing. The preheat / print erasure unit 3 is composed of an eraser 3a for erasing a printing portion and a pressure contact solenoid 3b which can be pressure contacted with the eraser 3a.

Here, the rewrite magnetic card data reading / writing unit 1 will be described in more detail with reference to FIG. 3 as well. When the rewrite magnetic card TCM is inserted from the insertion port 1g, on the card transport path W Is transferred to the right in the figure, and for this reason, in the illustrated example, the transport plate 1h
The notch-long window 1i is opened in the width direction of the above, and the exit side transport belt 1f is provided on the cutout long window 1i. As a result, the rewrite magnetic card TCM serves as a preheater for the next stage by the exit side transport belt 1f. It is transferred to the print erasing unit 3.

As is also known, a slit window 1j is formed near the one side in the width direction of the carrier plate 1h, and the magnetic head 1d is provided upward in this window. Then, on the other side in the width direction of the carrier plate 1h, which is the opposite side of the magnetic head 1d, a cutout window 1k is also opened in front of and behind the case of the illustrated example, and the barcode sensor 4 is formed there.
Is provided upside down like the magnetic head 1d. On the other hand, as shown in FIG.
As shown in FIG. ₃ , the rewrite magnetic card TCM has a magnetic track M on the magnetic surface M ₃ which is the back surface of the printing surface M _1.
Bar code M ₅ on the opposite side of ₄
Will be displayed by printing or printing.

Here, the bar code M ₅ may be simply displayed on the magnetic surface M ₃ by means of printing or the like, but as will be described later in detail when explaining the authenticity determination method of claim 2. , by applying non-translucent facings film M ₆ from above of the bar code M _5, the said bar code M ₅ is kept to prevent visually more desirable. Incidentally, reference numeral 5 in FIG. 3 denotes an electrical control circuit section constituted by a printed circuit board, as will be described later in detail with reference to FIG.

A true / false discriminating apparatus as described above is used.
The case of carrying out the authenticity determination method according to the present invention will be described in detail below. As in the case of the conventional reader / writer printer, first, in the rewriting magnetic card data reading / writing unit 1, the following first operation is performed. “Reading of magnetic data” will be performed. That is, when the rewrite magnetic card TCM is inserted from the insertion port 1g toward the entrance side conveyance roller 1b, the position detection sensor S ₁ detects the insertion of the rewriting magnetic card TCM, so that the electrical control is performed as shown in FIG. Input port 5a in circuit 5-arithmetic processing circuit 5b-output port 5c-read / write motor controller 5d
The first drive motor 1a is started via.

As a result, like the conventional reader / writer printer, the rewrite magnetic card TCM is moved to the right in the drawing along the card transport path W, and at this time, as shown in FIG. The magnetic data on the magnetic track M ₄ is read through the circuit section 5e. Here, in the invention of claim 1, in addition to the above steps,
The bar code data of the bar code M ₅ by the bar code sensor 4 attached to the magnetic head 1d is read by the bar code reading circuit unit 5f of FIG. 4, and thus the rewrite magnetic card TCM is operated by the bar code sensor 4 and the magnetic head. Immediately after passing 1d, the operation is stopped, and at this time, the read magnetic data and bar code data are stored in the memory circuits 5g and 5h by the arithmetic processing circuit 5b.

Next, the magnetic data and the bar code data stored as described above are processed by the arithmetic processing circuit 5b.
By each, it is analyzed whether or not each data is data according to predetermined information, and as a result, magnetic data,
If any one of the bar code data is incorrect, error processing is performed, that is, the first write motor 1a is reversely rotated by the reader / write motor controller 5d via the output port 5c from the arithmetic processing circuit 5b to perform the rewrite operation. The magnetic card TCM is ejected from the insertion port 1g.

The behavior of the rewrite magnetic card TCM by the reader / writer printer thereafter is exactly the same as that of the conventional example, and for the non-counterfeit rewrite magnetic card TCM, the second operation "rewrite magnetic card" is performed after the first operation. Writing to the card TCM "is performed. Therefore, after the end of the first operation, the first drive motor 1a is reversely rotated by a command from the arithmetic processing circuit 5b, and the rewrite magnetic card TCM is detected by the position detection sensor. When S ₂ detects, the arithmetic processing circuit 5 uses the detection signal as a trigger.
b writes the write data to the rewrite magnetic card TCM
Therefore, the writing by the prescribed means is continued until the end of the rewrite magnetic card TCM.

Then, the operation proceeds to the "verify operation" which is the third operation, but when the second operation is completed, the normal rotation by the first drive motor 1a is started again after a few msec by the instruction from the arithmetic processing circuit 5b. As a result, the rewrite magnetic card TCM reads the magnetic data by passing through the magnetic head 1d, and when all the data is read, this value is compared with the data written in the second operation. Here, if the read data and the write data match, it is normal, and if they do not match, it is abnormal (verify error), and when the latter abnormality is detected, for example, by reversing the first drive motor 1a, the rewrite magnetic card TCM is detected. Is discharged from the insertion port 1 g.

When the above normality is detected, according to the present embodiment, the "print erasing operation" as the fourth operation is performed.
Will be performed. That is, when the tip of the rewrite magnetic card TCM moved further to the right by the first drive motor 1a reaches the position detection sensor S ₃ , the first drive motor 1a is stopped and the arithmetic processing circuit 5
The pressure contact solenoid 3b is actuated via the b-output port 5c-driver 5i, and the rewrite magnetic card TCM is pressed and held by the printing portion erasing eraser 3a.
At this time, the eraser 3a for erasing the printing portion is adjusted in advance to an appropriate temperature by the thermometer side portion 5j-input port 5a-arithmetic processing circuit 5b-output port 5c-heater control unit 5k-heater unit 5m shown in FIG. Since the rewritable magnetic card TCM is actually held, the printing portion of the rewrite magnetic card TCM is erased and the print recording layer is in a warmed state in a pressing and holding time of about 1 second.

Rewriting magnetic card TC for erasing the printing portion
M then shifts to the "print processing operation" as the fifth operation, but first, by starting the second drive motor 2a,
The position is detected by the position detection sensor S ₄ by being conveyed rightward by the printing conveyance roller 2b, and the arithmetic processing circuit 5
b reads the print data and prints the thermal head 2
Output to d. At the same time, the thermal head driving solenoid 2c is driven by the arithmetic processing circuit 5b-output port 5c-driver 5n, whereby the heating platen roller 2e and the heating element at the tip of the thermal head driving solenoid 2c have a predetermined temperature. In between, the rewrite magnetic card TCM is pressed, and the characters constituted by the plurality of dots are printed as described above.

When the print processing operation is completed in this manner, the arithmetic processing circuit 5b returns the print thermal head 2d to the original position, and the second drive motor 2a and the first drive motor 1a drive the right side or the above. The rewrite magnetic card TCM is discharged from the insertion port 1g. Here, in FIG. 4, 5p is a driver for the magnetic head 1d,
2g is a controller for the second drive motor 2a for printing, 5q
Indicates a kanji ROM, and 5r indicates a timer. In addition, the arrow indicated by a broken line in FIG. 1 indicates a rewrite magnetic card TCM.
The transition method in the 1st-5th operation of is shown.

Here, in the case where the preheat / print erasing unit 3 is provided as described above, the thermal printing section 2 is heated at a time, so that the printing window M _{2 is} opaque. First, preheating is performed by the preheating / print erasing unit 3 without performing printing, and the printing energy lacking for printing is supplemented in the thermal printing unit 2 to obtain the printing sharpness in the rewrite magnetic card TCM. It is possible to satisfy both requirements of long life and long life.

Next, the method of judging forgery according to claim 2 will be explained. This is because when the bar code sensor 4 reads the bar code data of the rewrite magnetic card TCM as described above, the magnetic surface of the rewrite magnetic card TCM is simply read. This is different from the case of claim 1 in that not only the bar code M ₅ is displayed on M ₃ , but also a non-translucent surface mounting film M ₆ is coated thereon. Then, at this time, specifically, it is preferable to display the barcode M ₅ by a phosphor instead of using a normal carbon black material, and thereby, by irradiating the phosphor with irradiation light of a specific wavelength,
It is preferable that light having a different wavelength from this is received by a light receiving element such as a photodiode and the bar code data is read depending on the presence or absence of the received light.

Further, in this case, if an infrared light emitting phosphor is used as the above-mentioned phosphor, since the infrared light which is the emitted light has a long wavelength, the non-translucent mounting film M _{6 is used.}
As a result, a printed layer is formed as a result, and even if the bar code M ₅ is not visible, the infrared ray can be detected by the light receiving element through the printed layer. Therefore, in this case, since the bar code is completely invisible as compared with the method of claim 1, the forgery becomes even more difficult, and as a result, the security of this type of card can be further improved.

[0033]

The present invention can be implemented or configured as described above. Therefore, according to the method of claim 1, a reader / writer printer is used, and the rewriting magnetic card data reading / writing section thereof uses the conventional method. Since the reading of the bar code sensor is also completed in parallel with the reading of magnetic data by the magnetic head, it is possible to read information by combining two types of magnetic data and bar code data without delaying the processing speed of the rewrite magnetic card. Therefore, since it is difficult to make a counterfeit card, it is possible to quickly provide a system with high security.

Further, in the case of the method of claim 2, in addition to the method of claim 1, the bar code is made invisible by the non-translucent covering film, which makes forgery even more difficult. , Higher security can be secured, and it can be used with high reliability in a wide range of fields such as prepaid cards and key cards.

In the forgery apparatus of claim 3, the bar code sensor is provided in the vicinity of the magnetic head, and the bar code data memory circuit and the arithmetic processing circuit therefor are provided. The method can be carried out, and the addition of the bar code sensor makes it possible to make it as small as the conventional reader / writer printer.

[Brief description of drawings]

FIG. 1 is a side view showing an example of the authenticity determining device according to claim 3 that can be used to carry out the authenticity determining method for a rewrite magnetic card according to claim 1 of the present invention, and the transfer of the rewrite magnetic card. It is a related schematic diagram which showed the relative positional relationship with a process.

FIG. 2 shows a rewritable magnetic card used in claims 1 and 2, and (A) is a front view showing a printing surface thereof,
(B) is a back view showing the magnetic surface.

3 is a schematic plan view of the forgery discrimination device of FIG. 1. FIG.

4 is a block diagram showing an electric control circuit unit shown in FIG. 3. FIG.

FIG. 5A is a schematic front view of a partial vertical cross section of a rewrite magnetic card, and FIG. 5B is a vertical cross section of a print recording layer showing a change in transparency of the rewrite magnetic card of FIG. It is a front view.

[Explanation of symbols]

1 Rewrite Magnetic Card Data Reading / Writing Section 1a First Drive Motor 1b Entrance Side Transport Roller 1c Exit Side Transport Roller 1d Magnetic Head 1g Magnetic Slot 2 Thermal Printing Section 2a Second Drive Motor 2b Printing Transport Roller 2c Thermal Head Drive Solenoid 2d Printing thermal head 2e Printing platen roller 4 Bar code sensor 5b Arithmetic processing circuit 5h Memory circuit 5g Memory circuit M ₂ Printing window M ₅ Bar code M ₆ Non-transparent cover film W Card transport path a ₁ Printing record layer

Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI Technical display location G06K 19/00 A

Claims (3)

[Claims] 1. A rewrite magnetic card is transferred from a slot of a reader / writer printer in a predetermined direction along a card transport path, and first, in a rewrite magnetic card data reading / writing section, magnetic data is sequentially read by a magnetic head.
The operation, the second operation of writing to the rewrite magnetic card by the magnetic head, and the third operation of detecting the verify error by comparing and collating the write content by the second operation and the read content by the magnetic head are performed. In the step of performing printing processing on the print recording layer in the printing window of the rewriting magnetic card by transfer to the thermal printing section due to cloudiness associated with the heating processing, it is performed in parallel with the first operation of reading magnetic data in the rewriting magnetic card data reading / writing section. Then, by the bar code sensor installed near the magnetic head, the bar code data by the bar code applied to the rewrite magnetic card is stored in the memory circuit together with the above magnetic data, and the read magnetic data and bar code data are stored. Calculate whether or not matches with each predetermined information And each analyzed by the road, based on the mismatch analysis result, the authenticity discrimination method rewrite the magnetic card in the reader writer printer being characterized in that so as to discharge the rewrite magnetic card from the card transport path of the reader-writer printer. 2. A rewrite magnetic card is transferred from a slot of a reader / writer printer in a predetermined direction along a card transport path, and first, in a rewrite magnetic card data reading / writing section, magnetic data is sequentially read by a magnetic head.
The operation, the second operation of writing to the rewrite magnetic card by the magnetic head, and the third operation of detecting the verify error by comparing and collating the write content by the second operation and the read content by the magnetic head are performed. In the step of performing printing processing on the print recording layer in the printing window of the rewriting magnetic card by transfer to the thermal printing section due to cloudiness associated with the heating processing, it is performed in parallel with the first operation of reading magnetic data in the rewriting magnetic card data reading / writing section. Then, the bar code sensor provided near the magnetic head stores the bar code data of the bar code applied to the rewrite magnetic card and covered with the non-translucent surface coating film in the memory circuit together with the above magnetic data. , The read magnetic data and bar code data are predetermined. Each of the information is analyzed by an arithmetic processing circuit, and the rewrite magnetic card is discharged from the card transport path of the reader / writer printer based on the result of the mismatch analysis. A method for determining the authenticity of a rewrite magnetic card in a printer. 3. A rewritable magnetic card data reading device in which a magnetic head is provided in a card transport path between an inlet-side transport roller and an outlet-side transport roller of a rewrite magnetic card driven by a first drive motor. A writing unit, a printing conveyance roller for the rewrite magnetic card that is driven by a second drive motor, a printing thermal head having a thermal head driving solenoid, and a printing platen roller are additionally provided to print the rewriting magnetic card. In a rewrite magnetic card reader / writer / printer comprising a thermal printing unit for performing printing processing on a recording layer due to white turbidity due to heating, the rewrite magnetic card data reading / writing unit is located near the magnetic head, A bar with a bar code applied to a rewrite magnetic card that is carried into the card transport path. A bar code sensor for reading the code data in parallel with the magnetic data of the rewrite magnetic card by the magnetic head is provided, and a memory circuit to which the bar code data is input together with the magnetic data is connected to the bar code sensor. Then, an arithmetic processing circuit for analyzing whether or not the read magnetic data and the bar code data match each predetermined information is provided, and the first drive is performed based on the result of the mismatch analysis. An authenticity determination device for a rewrite magnetic card in a reader / writer printer, characterized in that a motor is operated so that the rewrite magnetic card is ejected from a card transport path.