JPH08153174A - Magnetic card illegal use preventing method, magnetic recording and reproducing device, and system equipment using magnetic medium - Google Patents

Abstract

PURPOSE: To make it hard to forge a magnetic recording medium and prevent illegal use by providing a timing information holding means for recording, reproduction, and erasure on the magnetic recording medium. CONSTITUTION: The timing information holding means 2 for recording, reproduction, and erasure is provided on the magnetic card 1. In this case, an illegal act is impossible unless a magnetic head of a special structure equipped with both a magnetic head that can record, reproduce, and erase magnetic data and a sensor for reading in the timing information holding means 2 for recording, reproduction, and erasure at the same time can be prepared, so that this device is effective as the illegal use preventive measure for the magnetic card 1. Further, it can be judged whether or not an illegal act is done from whether or not there is a contradiction between the frequency of the balance data on a 1st track 3 and the accurate balance data on a 2nd track 4 in single processing by a card processing machine. This timing information holding means 2 has a pattern of a light clock by invisible printing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic card fraud prevention method for performing charging, counting the number of times of use, entering / leaving room management, security management, program management, etc. using a magnetic recording medium.
The present invention relates to a magnetic recording / reproducing apparatus and system.

[0002]

2. Description of the Related Art There are telephone cards, orange cards, pucky cards, highway cards, etc. as conventional magnetic recording media for charging and counting the number of times of use. Magnetic recording / reproduction / erasing, printing of internal information, use It is widely used because it is used for punching at a certain frequency.

[0003]

SUMMARY OF THE INVENTION In the above conventional example,
There is a drawback that it is easy to falsify or forge by rewriting magnetic data or attaching magnetic tape.

A first object of the present invention according to the present application is to provide a magnetic card fraud prevention method and a magnetic card fraud prevention method, wherein timing information holding means for recording / reproducing / erasing is provided on a magnetic recording medium in order to make it hard to be forged or falsified. To provide a recording / reproducing device and a system device having the same device.

A second object of the present invention is to provide a timing information holding means for recording / reproducing / erasing on a magnetic recording medium in order to prevent a prepaid magnetic medium having a low denomination from being tampered with a high denomination. Another object of the present invention is to provide a magnetic card fraud prevention method, a magnetic recording / reproducing device, and a system device incorporating the same.

A third object of the present invention is to provide timing information for recording / reproducing / erasing in order to restrict alteration of a prepaid magnetic medium having a low remaining frequency to a medium having a high remaining frequency. Another object of the present invention is to provide a magnetic card fraud prevention method in which a holding means is provided on a magnetic recording medium, a magnetic recording / reproducing apparatus, and a system apparatus incorporating the same apparatus.

A fourth object of the present invention is to provide a timing information holding means for recording / reproducing / erasing in order to limit the alteration of a used prepaid magnetic recording medium to the original amount. (EN) A magnetic card fraud prevention method provided on a magnetic recording medium, a magnetic recording / reproducing apparatus, and a system apparatus incorporating the same.

[0008]

In order to achieve the above object, the first invention of the present application is to provide timing information holding means for recording / reproducing / erasing on a magnetic recording medium. Is characterized by. This timing information holding means can be read only by a magnetic head having a special structure, and if this timing information holding means is not used, recording / reproducing / erasing of magnetic data cannot be performed. Further, the pattern of the timing information holding means is not limited to one type, and various types are prepared.

The second invention, the third invention and the fourth invention relating to the present application enable recording / reproducing / erasing in a card processor unless a timing information holding means for recording / reproducing / erasing is used. The feature is that it cannot be done. In addition, the card processing machine is characterized in that the amount data recorded only by the card issuing machine (not shown) can be deleted only as the balance data by the card processing machine.
Therefore, the card processing machine cannot falsify the balance data without a magnetic head having a special structure, and the prepaid magnetic medium having a low denomination cannot be tampered with a high denomination.

Further, the prepaid magnetic medium having a low remaining frequency cannot be tampered with a medium having a high remaining frequency. Moreover, the erasing operation performed by the card processor cannot be executed unless the timing information holding means is used, so that the amount data cannot be falsified.

The used prepaid magnetic medium cannot be tampered with as new amount data because all the remaining amount data has been erased by the card processor.

[0012]

1 is a schematic diagram best showing the features of the present invention. In FIG. 1, 1 is a magnetic card which is a magnetic medium, and 2 is recording / reproducing / erasing which is invisible printing. The timing information holding means in which the pattern of the optical clock is formed, and the pattern is different for each card. 3 is the first place where the frequency of fixed data and amount data (remaining amount data) where the card ID etc. is recorded is recorded
A recording band (first track) 4 is a second recording band (second track) in which accurate balance data and other magnetic data are recorded. The above card is made as shown in FIG.

FIG. 2 is a diagram showing an outline of a magnetic card reader (card processing machine) which is an embodiment of the present invention. Magnetic card reader for issuing cards (card issuing machine)
Although not shown, the first track has a function of only reproducing / erasing in the card processing machine,
The card issuer is capable of recording / playback / erasing. However, other magnetic card readers have the same basic structure in a card processing machine and a card issuing machine. In the card issuing machine, the amount data and other magnetic data are recorded on the first track and the second track by the procedure shown in FIG. On the other hand, in the card processing machine, the first track reproduces magnetic data and erases the amount data, and the second track records / reproduces magnetic data and records / reproduces accurate amount data instead of merely the frequency of the balance data. It is like this. Reference numeral 1 is a magnetic card, and 21 and 22 and 23 are conveying rollers for feeding the magnetic card 1, which are connected by a belt or the like (not shown) by a drive motor (not shown), and can be rotated in the forward / reverse direction. It is like this. Reference numeral 24 is a magnetic head having a special structure having a reading function of timing information holding means for recording / reproducing / erasing magnetic data and recording / reproducing / erasing, and 25 is a guide for guiding the magnetic card 1. Reference numerals 26 and 27 are sensors for detecting the position of the magnetic card 1.

FIG. 3 is a schematic view of the inside of the magnetic head 24. A sensor 31 for reading the timing information holding means 2 for recording / reproducing / erasing is arranged on the gap of the head.

FIG. 4 is a block diagram of a control circuit and a memory circuit according to an embodiment of the present invention.

When the magnetic card 1 having the above structure is inserted into the guide 25, the sensor 26 detects the magnetic card 1 and the drive motor rotates in the normal direction. Therefore, the magnetic card 1 is transported by the transport rollers 21, 22, 23 connected to the drive motor. The sensor 31 for reading the timing information holding means 2 for recording / reproducing / erasing records / reproduces / reproduces data on both the first track and the second track.
It works when erased. Therefore, the magnetic head 24 reads the magnetic data of the first track 3 and the second track 4 according to the timing of the timing information holding means. The read data is transmitted to the controller (CPU) 43 and processed by the read circuit 42 of the timing information holding means for recording / reproducing / erasing and the encoder / decoder 41 of the recording / reproducing / erasing circuit. More specifically, after reading, it is checked whether or not there is an error, and if it is OK, then the balance data of the first track and the balance data of the second track are compared. Store it in the device, then flip the card over and erase the balance data of the first track according to the amount used
Rewrite the balance data of the truck to the correct balance data according to the usage amount. Here, further error check and OK
If so, rotate the card forward, read the data on the first and second tracks, check the error, then flip the card and check the data on the first and second tracks to find the error. If not, eject the card. That is, when the sensor 27 detects the end surface of the magnetic card 1, the drive motor reverses and the magnetic card 1 is conveyed by the conveying rollers 21, 22, and 23 in the direction opposite to the insertion direction and is discharged to the outside.

In one processing by the card processor, whether the fraud is performed depending on whether or not there is a contradiction between the frequency of the balance data of the first track and the accurate balance data of the second track. You can judge whether or not. Further, even if a forged magnetic card is used due to transfer of magnetic data or the like, the forged magnetic card is excluded as an illegal magnetic card because there is no timing information holding means 2 for recording / reproducing / erasing. It is possible to That is, the magnetic head 2 is provided with a magnetic head capable of recording / reproducing / erasing magnetic data and a sensor 31 for reading the timing information holding means 2 for recording / reproducing / erasing at the same time.
If 4 is not prepared, fraudulent acts are impossible, and even if such a magnetic head could be obtained, read the timing information holding means 2 for recording / reproducing / erasing classified into several types. Is very difficult and almost impossible to cheat.

Providing the timing information holding means 2 for recording / reproducing / erasing on the magnetic card means that a magnetic head capable of recording / reproducing / erasing magnetic data and holding timing information for recording / reproducing / erasing. Magnetic head 2 of special structure equipped with a sensor for reading the means 2 at the same time
If 4 is not prepared, fraudulent acts are not possible, and it is effective as a magnetic card fraud prevention measure.

Further, the card processor has only the function of reproducing / erasing the first track, and does not have the function of recording magnetic data. Therefore, even if the card processing machine is stolen for the purpose of fraud, it is impossible to carry out the fraud with the magnetic card reader installed in the card processing machine.

(Other Embodiments) In the present invention, although the value of the coercive force of the magnetic medium is not specified, a magnetic medium having a high coercive force is generally used in order to improve security. Any value may be used in the embodiment of the present invention.

For the magnetic data of the first track and the second track, magnetic data having azimuth may be used, which has the effect of further improving security.

The timing information holding means 2 for recording / reproducing / erasing is used as the timing information for recording / reproducing / erasing in the present embodiment.
It is also possible to use the timing information itself for reproducing / erasing as one data.

In the present invention, the timing information holding means 2 for recording / reproducing / erasing is invisible printing, but visible printing may be used, or a printed material may be attached later. Good.

[0024]

As described above, according to the first invention of the present application, by providing the timing information holding means for recording / reproducing / erasing on the magnetic recording medium,
There is an effect that tampering is difficult and fraud can be prevented only by using a magnetic head having a general structure and a simple recording / reproducing / erasing circuit.

According to the second invention, the third invention and the fourth invention of the present application, the card processing machine has only the function of reproducing / erasing the magnetic data in the first track, so that the card should not be used. Even if tampering is performed using a processor, tampering with prepaid magnetic media with a low denomination to one with a high denomination, or tampering prepaid magnetic media with a low remaining count to one with a high remaining count Or
There is an effect that it is impossible to falsify a used prepaid magnetic medium to the original amount.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a magnetic card provided with timing information holding means for recording / reproducing / erasing magnetic data according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating a schematic configuration of a magnetic card reader according to the first embodiment of the present invention.

FIG. 3 is a diagram illustrating a schematic configuration inside a magnetic head according to a first embodiment of the present invention.

FIG. 4 is a block diagram illustrating a control circuit and a memory circuit of the magnetic card reader according to the first embodiment of the present invention.

FIG. 5 is an explanatory diagram of making a magnetic card.

FIG. 6 is an explanatory diagram of creating a card.

FIG. 7 is an explanatory diagram of card processing.

[Explanation of symbols]

1 magnetic card 2 timing information holding means for recording / reproducing / erasing 3 first recording band (first track) 4 second recording band (second track) 21, 22, 23 transport roller 24 magnetic head 25 guide 26, 27 Magnetic Card Position Detecting Sensor 31 Reading Sensor for Recording / Reproducing / Erasing Timing Information Holding Means 41 Recording / Reproducing / Erasing Circuit Encoder and Decoder 42 Reading Recording / Reproducing / Erasing Timing Information Holding Means Circuit 43 Controller (CPU) 44 ROM 45 RAM 46 I / O buffer

Claims (15)

[Claims] 1. In addition to magnetic data, timing information holding means for recording / reproducing / erasing is provided on a magnetic recording medium, and recording / reproducing of magnetic information is performed in synchronization with the timing information held by the timing information holding means. / A fraud prevention method characterized by erasing. 2. The fraud prevention method according to claim 1, wherein the timing information holding means for recording / reproducing / erasing is a printed matter. 3. The fraud prevention method according to claim 2, wherein the printed matter of the timing information holding means for recording / reproducing / erasing uses a so-called bar code format. 4. The fraud prevention method according to claim 2, wherein the printed matter of the timing information holding means for recording / reproducing / erasing is invisible printing. 5. The fraud prevention method according to claim 2, wherein the printed matter of the timing information holding means for recording / reproducing / erasing is printed on the magnetic stripe. 6. A magnetic recording / reproducing apparatus, wherein the fraud prevention method according to claim 1 is adopted. 7. A magnetic recording / reproducing apparatus, wherein the fraud prevention method according to claim 2 is adopted. 8. A magnetic recording / reproducing apparatus, wherein the fraud prevention method according to claim 3 is adopted. 9. A magnetic recording / reproducing apparatus, wherein the fraud prevention method according to claim 4 is adopted. 10. A magnetic recording / reproducing apparatus, wherein the fraud prevention method according to claim 5 is adopted. 11. A system device using a magnetic recording medium, characterized in that the magnetic recording / reproducing device according to claim 6 is incorporated. 12. A system device using a magnetic recording medium, characterized in that the magnetic recording / reproducing device according to claim 7 is incorporated. 13. A system device using a magnetic recording medium, characterized in that the magnetic recording / reproducing device according to claim 8 is incorporated. 14. A system device using a magnetic recording medium, characterized in that the magnetic recording / reproducing device according to claim 9 is built-in. 15. A system device using a magnetic recording medium, characterized in that the magnetic recording / reproducing device according to claim 10 is incorporated.