JPH08249433A - Method for preventing illegality on prepaid card - Google Patents

Abstract

PURPOSE: To effectively prevent the illegality such as a remodeling, etc., by writing arbitrary patterns such as characters or pictures in the blank part beyond the part of a balance when the balance becomes 0. CONSTITUTION: In the balance code area 17 of value information, the information 18, 19 and 20, etc., by the two-dimensional code showing the balance that the prepaid card in the process of using the prepaid card holds, are written. The information 18, 19 and 20 by the two-dimensional code showing this balance are written in order from the bottom of the prepaid card. When the balance is zero, arbitrary patterns are written in a blank part 17a which is left as it is in a conventional prepaid card. For instance, the pattern 24 composed of the two-dimensional code which is completely painted out and is full black and a character 25 such as 'Thank you very much' are written. As the result, when value information is lost, the illegal use of the blank part of an illegal card connecting with the blank part of other unnecessary card of the blank part can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a prepaid card fraud prevention method capable of effectively preventing fraudulent use such as modification.

[0002]

2. Description of the Related Art Bar codes for product management are attached to products currently on the market. This bar code is assigned to each product provider, but the bar code allocation is approaching its limit with the diversification of product types. Therefore, the idea of using a two-dimensional code such as the Carla code (registered trademark of Alec Japan) as a new code is emerging. Further, in a wide range of fields such as telephone companies and transportation companies, a sales system using a prepaid card with advance payment is used.

FIG. 2 is a plan view showing the structure of a conventional prepaid card in which the two-dimensional code is written. In the figure, 1 is a prepaid card body, 2 is an initial code area along which one side of the prepaid card body 1 is initially set by a prepaid price, and an initial code area in which a two-dimensional code and a number are written. The amount information indicating the remaining amount of money in the process is a remaining amount code area in which a two-dimensional code and a number are written, and the additional amount is sequentially written downward in parallel with the initial code area 2.

FIG. 3 is a back view showing the back surface of the prepaid card body 1. Reference numeral 4 is key information 4a for writing in the initial code area 2 and the balance code area 3 or reading the written two-dimensional code. The invisible writing area is invisiblely written, and the invisible writing area 4 is set in advance for each prepaid card.

FIG. 4 is a cross-sectional view of the prepaid card body 1. Reference numerals 5 and 6 are protective layers for covering the surface of the prepaid card, and 7 is a card substrate formed between the protective layers 5 and 6. A heat-sensitive layer 8 is provided between the card base 7 and the protective layer 5 for recording a two-dimensional graphic code and numbers. The two-dimensional codes and numbers in the initial code area 2 and the remaining code area 3 are colored and displayed visually when the heat-sensitive layer 8 is heated.

[0006]

Since the conventional prepaid card is constructed as described above, the code of the column of balance 0 written at the end of the balance code area 3 is modified so that the balance remains. Then, the amount information 3b indicating the remaining amount in the use process of the prepaid card written in the remaining amount code area 3 or the remaining amount code area 3 is cut off, and the margin portion 3a is directly connected to the initial code area 2 directly. By doing so, fraud such as remodeling may be easily performed, and there has been a problem that such countermeasures for fraud prevention are desired.

The present invention has been made to solve such problems, and an object of the present invention is to provide a fraud prevention method for a prepaid card which effectively prevents fraud such as modification.

[0008]

In the method of preventing fraud of a prepaid card according to the present invention, the initial amount information initially set by advance payment is written along one side of the card by a two-dimensional graphic code and a number. In a fraud prevention method of a prepaid card having a code area and a balance code area in which the process of using the amount of money is written, the balance code area is formed along a second side of the card opposite to the initial code area. One line is written, the lines are written sequentially upward from the next line, and when the remaining amount becomes 0, an arbitrary pattern such as a character or a picture is written in the blank portion beyond that. It is a thing.

[0009]

According to the method for preventing fraud of a prepaid card of the present invention, when the residual value of the prepaid card is lost,
Since any pattern such as letters or pictures is written in the margin part of the balance code area, there is no margin part in the prepaid card with no remaining value, and the code in the balance 0 column is modified, or It is possible to effectively prevent unauthorized modification in which an unnecessary blank portion of the other card is directly connected directly to the blank portion excluding the portion where the balance code area is written.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing the structure of the prepaid card of this embodiment. In the figure, 11 is a prepaid card body, 12 is an initial code area in which the amount information held by an unused prepaid card is written along one side 13 of the prepaid card body 11, and 14 is a two-dimensional code in the initial code area 12. It is the amount information of, for example, "10000 yen" written first by. Reference numeral 15 indicates “100” written along the side 13 of the prepaid card body 11.
This is a number representing the amount of "00 yen".

Reference numeral 17 is a balance code area of value information in which information 18, 19, 20 and the like by a two-dimensional code indicating the balance held by the prepaid card in the process of using the prepaid card is written. 2 showing this balance
The information 18, 19 and 20 by the dimension code are sequentially written from the lower side of the prepaid card. 21 is the content of the information 18 indicating the balance written by the two-dimensional code "85
00 represents the number, 22 represents the content 19 of the information 19 indicating the balance written in the two-dimensional code, and 23 represents the content of the information 20 representing the balance written in the two-dimensional code. It is a number representing "0 yen". Incidentally, 17a is a blank portion of the balance code area 17.

24 and 25 are, when the balance is exhausted,
In the conventional prepaid card, it is an arbitrary pattern written in the margin portion 17a which is left as the margin, and in the present embodiment, it is a pattern formed by the solid black two-dimensional code. In addition, 25 is, for example, "Thank you. It is a character such as ".
The patterns and characters composed of these two-dimensional codes are arbitrarily set, and are written in the margin portion 17a when the balance is exhausted.

Conventionally, unauthorized modification of a prepaid card is
Information by a two-dimensional code indicating the remaining amount held by the prepaid card in the process of modifying the balance 0 column in the balance card area or using the prepaid card 1
It is often done by cutting off 8, 19, 20, etc., and directly connecting the margin part of the remaining balance code area to a part of the initial code area 12 and the value information code area 17, and reading such a prepaid card. Since it is difficult for the device to detect the dimensional information of the prepaid card in many cases, it is difficult to detect the illegal modification, whereas in the prepaid card of this embodiment, the first entry of the balance code area is the initial code. On the other side of the area,
That is, since the process is performed from the lower side, if the predetermined size of the card paper is not correct, it will be understood that the recording cannot be performed, and the fraud can be immediately prevented. Also, when the value information is lost, patterns and characters composed of a two-dimensional code are written in the margin of the balance code area, so when the value information is lost, the margin of another unnecessary card is connected to the margin. It is possible to prevent illegal use of a blank portion such as an illegal card.

[0014]

As described above, according to the present invention, it is possible to write an arbitrary pattern or character in the balance code area when the residual value is exhausted so that a blank portion does not occur.
There is an effect that it is possible to effectively prevent illegal modification using the margin portion.

[Brief description of drawings]

FIG. 1 is a plan view showing a prepaid card according to an embodiment of the present invention.

FIG. 2 is a plan view showing a conventional prepaid card.

FIG. 3 is a back view showing a prepaid card.

FIG. 4 is a sectional view of a prepaid card.

[Explanation of symbols]

 11 prepaid card body 12 initial code area 17 balance code area 24 patterns 25 characters

Claims (1)

[Claims] 1. An initial code area in which initial amount information initially set by advance payment is written along one side of a card by a two-dimensional graphic code and a number, and a balance in which a process of using the amount is written. In the fraud prevention method for a prepaid card having a code area, the remaining code area is written in the first line along the other side of the card opposite to the initial code area, and sequentially written upward from the next line. A method for preventing fraud of a prepaid card, characterized in that, when the remaining amount becomes 0, an arbitrary pattern such as a character or a picture is written in a blank portion beyond that.