JPH04115390A - Card data storing/reproducing device for prepaid card - Google Patents

Abstract

PURPOSE:To prevent the generation of a crime such as the modification of card data and the forgery of a prepaid card by writing unusable data in the magnetic data storing part of the prepaid card. CONSTITUTION:At the time of deciding that read card data are specific pattern data, a message indicating a use-inhibited card is displayed when the card data are forcedly canceled pattern data, and in the case of residual amount '0' pattern data, a message indicating the residual amount is 0 yen is displayed and then operation is transferred to invalid card processing. Since an usable data are written in a prepaid card whose residual amount data are zero, the generation of a crime such as the modification of card data and the forgery of the prepaid card can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a card data storage/reproduction device for prepaid cards.

BACKGROUND OF THE INVENTION Conventionally, as shown in Table 1, a band-shaped magnetic data storage section formed on a prepaid card stores card data consisting of a business type code, issuing company code, store code, balance amount, etc., respectively. It is stored in the number of digits and in a predetermined format.

Table 1 In general, a prepaid card reader/writer that stores and plays card data for such a prepaid card is used by being connected to a PO8 terminal, etc., and when the card is inserted. The card data stored in the magnetic data storage unit is read out and PO
Send to 8 terminals.

The PO8 terminal that received this card data checks the invalidity of the prepaid card based on the card data, and if it is not invalid, that is, if it can be used, the sales of the registered product will be calculated based on the balance amount of the read card data. The total amount is subtracted, and the result of the subtraction is sent to the magnetic data storage unit as the balance amount.

The prepaid card reader/writer that receives this card data writes the card data into the magnetic data storage section of the prepaid card, and ends the process.

In addition, if the balance amount of the prepaid card becomes O as a result of such processing, write O to the balance amount in the magnetic data storage unit and further activate the unusable status bit. After creating a termination card that cannot be reused, it is given to the customer.

Problems to be Solved by the Invention As described above, a prepaid card whose balance becomes zero cannot be used again, and there is no problem even if it is damaged. Therefore, the card data of such prepaid cards is easily analyzed, which may lead to crimes such as falsification of card data and forgery of prepaid cards.

Additionally, in order to solve this problem, there are some devices in which the order of each data forming the card data is changed and written to the magnetic data storage unit, but the card data written in this way is However, it still has a certain regularity, and it cannot be said to be a fundamental solution.

Means for Solving the Problem The invention as set forth in claim 1 provides a prepaid card having a magnetic data storage section formed in a predetermined format and consisting of a plurality of items, and stores a balance amount in each of the plurality of items in the magnetic data storage section. A card data storage/reproduction device for storing and reproducing card data including data includes an input means and a predetermined format different from the card data in the magnetic data storage section based on an unusable data write command from the input means. and an unusable data writing means for writing unusable data having the same.

Further, the invention according to claim 2 provides card data including balance amount data in each of the plurality of items of the magnetic data storage for a prepaid card having a magnetic data storage section formed in a predetermined format and consisting of a plurality of items. In a card data storage/reproduction device that stores and reproduces the card data, when the balance amount data of the card data to be written becomes 0, unusable data having a predetermined format different from this card data is stored in the magnetic data storage. A means for writing unusable data to the section is provided.

According to the invention described in claim 1, the unusable data is written into the magnetic data storage section of the prepaid card by the unusable data writing means based on the unusable data writing command from the input means. This unusable data has a predetermined format different from that of card data, and has no meaning at all as card data. Therefore, a prepaid card written with unusable data becomes impossible to analyze.

Further, in the invention as claimed in claim 2, when the balance amount data of the card data to be written becomes O, the unusable data having a predetermined format different from this card data is prepaid by the unusable data writing means. Since it is written in the magnetic data storage section of the card, unusable data can be automatically written to a prepaid card whose balance amount data becomes 0.

Embodiment A first embodiment of the present invention will be explained based on FIGS. 1 to 6. This prepaid card card data storage/reproduction device 1 has a hardware configuration as shown in FIG.
M4 is connected to form a microcomputer,
Further, a display 5, a keyboard 6, a communication interface 7, and a card data reading/writing section 8 are connected to the CPU 2.

However, the ROM 3 includes the RAM 4, the display 5, the keyboard 6, the communication interface 7, and the card data continuous writing section 8 by controlling the CPU 2.
Fixed data such as programs that perform data processing such as reading/writing processing of card data is stored by exchanging various data and various commands with the card.

Further, the prepaid card used in this card data storage/reproduction device 1 is the same as the conventional one, and is equipped with a magnetic data storage section consisting of a plurality of items formed in a predetermined format (see Table 1). .

Further, the RAM 4 is formed with a write data buffer and the like that temporarily stores card data to be written to the prepaid card.

On the other hand, this card data storage/reproduction device 1 is connected to an electronic cash register 9 serving as a PoS terminal. This electronic cash register 9 includes a CPU 10, a ROM II, a RAM 12, a display 13, and a keyboard 14.
and a printer 15 and two communication interfaces 16.
17, and the ROM3 contains the CP
By controlling Ul0 and exchanging various data and commands with each part connected to this CPU10, fixed programs such as programs that perform data processing such as sales data settlement/registration processing are executed. Data is stored.

Further, the RAM 4 is formed with various areas such as a sales data area for storing registered sales data in total.

However, the communication interface 16 of this electronic cash register 9 and the card data storage/reproduction device 1
is connected to the communication interface 7 via a communication cable 18. Note that the communication interface 17 is for connecting with other devices such as electronic cash registers.

In such a configuration, the electronic cash register 9
When a registration operation is performed using the keyboard 14 of the CPU
l0 cumulatively stores the sales data inputted based on the registration program stored in the ROM II in the sales data area of the RAM 12.

Furthermore, when the registration process by the electronic cash register 9 is completed and the total amount of the registered products is calculated, the prepaid card is set in the card data read/write section 8 of the card data storage/reproduction device 1.

At this time, as shown in FIG. 3, the card data storage/reproduction device 1 reads the card data of the set prepaid card, performs an invalidity check process based on the card data, and if the card is not invalid, that is, the prepaid card is invalid. If the card is usable, a readout signal is sent to the electronic cash register 9, and then the system waits for receiving total amount data. When the total amount data is received, a balance amount calculation process is performed, and as a result of the process, the card data set in the write buffer is written into the magnetic data storage section of the prepaid card, and the process is ended.

However, the electronic cash register 9 that receives the continuous signal from the card data storage/reproduction device 1 transmits the total price data of the registered products to the card data storage/reproduction device 1, as shown in FIG.

Here, the above-mentioned balance amount calculation process is a process as shown in FIG. In other words, the total amount of registered products SUM
is smaller than the balance amount REM of the card data,
After subtracting the total amount SUM from the balance amount REV and setting this subtraction result (updated balance amount REM) in the write data buffer, return to the card data write process (third step
(see figure).

Also, the total amount SUM is the balance amount REM of the card data.
If it is equal to , the used card processing is performed in the same way as in the past, and then the balance amount and 0 pattern data J are set in the write data buffer, and then the process returns to the card data write processing.

However, this balance amount O pattern data has a predetermined format different from card data, is not used as card data (see "Data" in Table 1), and has no meaning as card data. No data, i.e. 1111000011110000 till 000
It is formed by numerical values such as 0...

Furthermore, 1 total amount StJM is the balance amount R of card data
If it is larger than EM, the balance amount REM is subtracted from the total amount SUM to calculate the shortage amount STG, and after this is displayed, it is determined whether or not the shortage amount deposit processing is selected.

If it is determined that the shortfall amount deposit process is not selected, the system moves to a cash payment process that does not use a prepaid card, and if it is determined that the shortfall amount deposit process is selected, the shortfall amount deposit process is performed. After that, the result of addition of the balance amount REM of the card data and the deposited amount CASH is compared with the total amount SUM.

If the total amount SUM is larger than the sum of the balance amount REM of the card data and the deposited amount CASH, the above-described insufficient amount depositing process is repeated.

Also, the total amount SUM is the balance amount REM of the card data.
If it is equal to the sum of the deposited amount CASH, the used card processing is performed, and after setting the balance amount 0 pattern data in the write data buffer, the process returns to the card data writing processing.

Furthermore, the total amount SUM is the balance amount RE of the card data.
If it is smaller than the addition value of M and deposit amount CASH,
After subtracting the total amount SUM from the added value of the balance amount REM and the deposited amount CASH and setting this subtraction result (updated balance amount REM) in the write data buffer, the process returns to the card data write process.

On the other hand, the above-mentioned invalidity check process (see FIG. 3) is a process as shown in FIG. That is, it is determined whether the read card data is special pattern data (the above-mentioned balance amount 0 pattern data or the later-described forced discard pattern data).

If it is determined that the read card data is not special pattern data, the process (see FIG. 3) continues after the above-described process of transmitting the successive signal to the electronic cash register.

In addition, if it is determined that the card data is special pattern data, if the card data is forced discard pattern data, it will be displayed as a prohibited card, and if the balance amount is O pattern data, the balance amount is 0 yen. to indicate that
After these display processes, the process moves to invalid card processing.

In this way, unusable data is written to the prepaid card whose balance amount data becomes 0, and as a result,
Since the contents stored in the magnetic data storage unit can be made meaningless, it becomes impossible to analyze the card data, thereby making it possible to prevent crimes such as falsification of card data and forgery of prepaid cards. Become.

Furthermore, since the process of writing the unusable data is automatically executed when the balance amount data becomes O, the used prepaid card can be reliably rendered unusable.

In addition, when the operator issues a prepaid card by mistake and discards the card, as shown in FIG. It is determined whether the button has been pressed four times in a row, and if it is determined that it has not been pressed four times in a row, the process is terminated after performing error processing, and if the button has been pressed four times in a row (unusable). If it is determined that a data write command has been given, the compulsory discard pattern data is written into the magnetic data storage section of the prepaid card, and then the process is terminated.

However, this forced discard pattern data is data that has a predetermined format different from card data, is never used as card data, and has no meaning as card data, that is, 0000 fill 0000
It is formed by numerical values such as 1111 0000 1111...

In this way, by giving an unusable data write command from the keyboard 6, unusable data can be arbitrarily written even to a prepaid card whose balance amount is not 0.

Next, a second embodiment of the present invention will be described based on FIGS. 7 and 8. This prepaid card card data storage and playback device is the same as the card data storage and playback device shown in FIG. The same reference numerals are used for the same parts as those explained in FIGS. 1, 2, 5, and 6, and the explanation thereof will be omitted.

In such a configuration, the card data storage/reproduction device l
When a prepaid card is set in the card data read/write unit 8 of the card data storage/reproduction device 1, as shown in FIG. 7, after reading the card data of the set prepaid card, the card data The card data is sent to the electronic cash register 9, and at the end of this sending process, the card data becomes ready to be received.

Then, when card data is received from the electronic cash register, this card data is written into the magnetic data storage section of the prepaid card, and the process is completed.

On the other hand, the electronic cash register 9 that has received the card data from the card data storage/reproduction device 1 performs an invalidity check process based on the received card data, as shown in FIG. After performing the amount calculation process, the card data as a result of the process is sent to the electronic cash register 9, and the process ends.

However, in this embodiment, if the card data is a special pattern in the invalidation check process, the use prohibition display,
And the balance amount O yen is displayed on the electronic cash register 9
In addition, in the balance amount calculation process, the card data to be written is not written in the write data buffer formed in the RAM 4 of the card data storage/reproduction device 1, but is written in the RAM 1 of the electronic cash register 9.
It is set in the communication data buffer formed in 2.

In this way, similarly to the first embodiment, this embodiment automatically executes the writing process of unusable data when the balance amount data becomes O, and furthermore, writes the unusable data from the keyboard 6. Based on a write command, unusable data can be written even to a prepaid card whose balance amount is not 0.

In the above two embodiments, the communication interface 16 of the electronic cash register 9 and the communication interface 7 of the card data storage/reproduction device 1 are connected via the communication cable 18. Although the present invention has been described using the electronic cash register 9, the present invention is not limited to this, and it is also possible to incorporate the card data storage/reproduction device 1 into the electronic cash register 9. In such a case, the keyboard 6 can be omitted.

Effects of the Invention The invention according to claim 1, as described above, stores a balance amount in each of the plurality of items of the magnetic data storage for a prepaid card equipped with a magnetic data storage section formed in a predetermined format and consisting of a plurality of items. A card data storage/reproduction device for storing and reproducing card data including data includes an input means and a predetermined format different from the card data in the magnetic data storage section based on an unusable data write command from the input means. Since the prepaid card is provided with an unusable data writing means for writing unusable data, the stored contents can be rendered meaningless by writing unusable data into the magnetic data storage section of the prepaid card. This makes it impossible to analyze card data, thereby making it possible to prevent crimes such as falsification of card data and forgery of prepaid cards.

Further, as described above, the invention according to claim 2 provides for a prepaid card having a magnetic data storage section formed in a predetermined format and consisting of a plurality of items, the balance amount data being stored in each of the plurality of items of the magnetic data storage section. In a card data storage/reproduction device that stores and reproduces card data including card data, when the balance amount data of the card data to be written becomes ○, unusable data having a predetermined format different from this card data is written Since an unusable data writing means is provided to write into the magnetic data storage section, unusable data is automatically written to a prepaid card whose balance amount data becomes 0, thereby ensuring that the used prepaid card cannot be used. It can be made into something.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing the balance amount calculation process in the first embodiment of the present invention, and FIG. 2 shows the connection state between the card data storage and playback device and the electronic cash register, and an overview of the hardware configuration of each. FIG. 3 is a flowchart showing card data read/write processing by the card data storage/playback device; FIG. 4 is a flowchart showing data processing when receiving a read signal from the card data storage/playback device; FIG. 6 is a flowchart showing the invalidity check process, FIG. 6 is a flowchart showing the forced discarding process, and FIG. 7 is a flowchart showing the card data read/write process by the card data storage/reproduction device in the second embodiment of the present invention. , FIG. 8 is a flowchart showing data processing when receiving card data from the card data storage/reproduction device. 1... Card data storage/reproduction device, 6... Input means, . 3 Figure 3 Figure 3 C direction Figure 1 Figure C direction Figure 7 Hanging diagram

Claims (1)

[Scope of Claims] 1. Storage of card data including balance amount data in each of the plurality of items of the magnetic data storage for a prepaid card equipped with a magnetic data storage consisting of a plurality of items formed in a predetermined format. A card data storage and reproducing device that performs and reproduces the card data includes an input means and an unusable data write command from the input means for writing unusable data having a predetermined format different from that of the card data into the magnetic data storage unit. 1. A card data storage and reproducing device for a prepaid card, characterized in that a device for storing and reproducing data on a prepaid card is provided with a means for writing prohibited data. 2. Storing and reproducing card data including balance amount data in each of the plurality of items of the magnetic data storage for a prepaid card equipped with a magnetic data storage section formed in a predetermined format and consisting of a plurality of items. In the card data storage/reproduction device, when the balance amount data of the card data to be written becomes 0, unusable data writing is performed in which unusable data having a predetermined format different from this card data is written in the magnetic data storage unit. A card data storage/reproduction device for a prepaid card, characterized in that it is provided with means.