JP3012360U - prepaid card - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a prepaid card that can record many transactions in a small printing space. [Structure] On the card surface, each bit of the balance data composed of binary numbers is marked with a dark circle 2 on either "0" or "1" side, and the other side is the color of the card surface. At the position where the balance is displayed on the prepaid card 1 in which the balance is displayed by either the bit “0” or “1” of each bit of the other balance data composed of binary values, the dark-colored circle 3 Is overwritten, and the dark large circle 3 covers the dark small circle 2 and is overwritten.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a prepaid card, and more particularly to a prepaid card in which balance data is displayed on the surface of the card by a combination of a dark color mark and a light color mark.

[0002]

[Prior art]

 Recently, magnetic cards have become popular as prepaid cards. It has a certain feature in that it records a large amount of data and keeps the confidentiality of the data. However, since a magnetic card normally writes data to a magnetic stripe attached to a resin and then reads it magnetically, it is extremely easy to tamper with data by a magnetic writer and thus make it illegal. As you know, it is causing the problem of.

For this reason, mainly for the purpose of data tampering and fraud prevention, the balance is printed and displayed as a binary code on the surface of a paper or plastic card as a binary data, and the display is updated each time the balance is updated. Prepaid cards have come to be used. Such a prepaid card is one in which the balance display consisting of a series of marks is added and printed side by side with the old balance display for each transaction.

[0004]

[Problems to be solved by the device]

 With the conventional prepaid card as described above, the printing space for the balance display is limited, so if many transactions are made, the space will fill up in a short period of time and subsequent writing and recording will not be possible. There was a flaw. As a result, users who are full of space need to take the troublesome procedure of reissuing a new prepaid card with their current balance.

The present invention has been made to solve the problems of the prior art, and its object is to provide a prepaid card capable of recording many transactions in a limited small print space. is there.

[0006]

[Means for Solving the Problems]

 The prepaid card of the present invention has a dark circle on either side of "0" or "1" of each bit of the balance data composed of binary numbers on the surface of the card, and the other side on the other side. In the prepaid card in which the balance is displayed by the color of the surface of the card, either "0" or "1" of each bit of the other balance data composed of binary values is displayed at the position where the balance is displayed. Is overwritten with a dark color large circle, and the dark color large circle is overwritten with the dark color small circle. Alternatively, at least one of the marks constituting the balance display on the card surface is a dark color mark.

[0007]

[Action]

 The prepaid card of the present invention configured as described above is printed in dark small circles, and is overwritten with dark large circles so that, for example, dark large circles become "1". In the case of correspondence, after overwriting, it can be determined as "1" if a dark-colored large circle is printed, and "0" if other dark-colored small circles or blanks (card surface) are present. Therefore, it is possible to write twice in a small print space, and it is possible to handle more transaction records.

[0008]

【Example】

 FIG. 1 is a plan view of an embodiment of the prepaid card of the present invention. FIG. 2 is an explanatory diagram of overwriting printing of the prepaid card of the present invention. FIG. 3 is a logical table for overwriting printing of the prepaid card of the present invention. Hereinafter, an embodiment of the present invention will be described with reference to FIGS. The prepaid card 1 of the present invention sequentially displays the residual amount for each transaction on each row L1 to L4 of the matrix on the card surface 1A. In FIG. 1, the balance display in which a plurality of dark small circles 2 are printed at the corresponding positions of columns C1 to C7 is sequentially printed on rows L1 to L4, and the transaction data has already been printed on row L4. There is. That is, the dark colored small circle 2 is printed on L4 and C1, L4 and C2, L4 and C4, L4 and C6, respectively.

Therefore, the printing space of the prepaid card 1 is filled up. Here, the present invention returns to the row L1 again and performs overwriting printing by the combination of the dark large circle 3 and the blank. As shown in the logical table of FIG. 3, if the first printed display on the card surface is a dark small circle, and if a dark large circle is overwritten as the second printing, the first printed display is dark. The small colored circles are covered, so only the dark large circles are displayed. The same applies when the first printed display is blank.

If the first print display already made on the card surface is a dark color small circle and the overwriting as the second print is blank, only the dark color small circle is displayed. Since the reader can distinguish between the dark small circles and the dark large circles by the difference in the amount of light, this is regarded as blank in the overwriting as the second printing. The same applies when the first print display is blank. As described above, overwriting is possible.

Returning to FIG. 1, in row L1, dark large circles are printed on C1 and C2, and old dark small circles are displayed from C3 to C7. Thus, for example, if the dark-colored large circle is defined as "1", the balance becomes 1100000. Similarly, the balance of the row L2 is 1001000, and since there is no dark colored large circle below this, it can be seen that the latest balance is displayed.

It is desirable that the dark large circle mark and the dark small circle mark be formed in black. Also, at least one of the balance data marks printed and displayed on the card surface must be a dark mark.

[0013]

[Effect of device]

 As described above, the prepaid card of the present invention is already printed with a combination of dark color small circles and blanks, and has a dark color large circle overwritten on it. Therefore, if the dark-colored large circle corresponds to "1", it will be "1" if the dark-colored large circle is printed after overwriting, and other dark-colored small circles or blanks (card If the (face) appears, it can be determined as "0". Therefore, it is possible to write twice in a small printing space, and it is possible to realize a prepaid card that can record more transactions, which is very effective in industry.

[Brief description of drawings]

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

FIG. 2 is an explanatory view of overwriting printing of the prepaid card of the present invention.

FIG. 3 is a logical table for overwriting printing of the prepaid card of the present invention.

[Explanation of symbols]

 1 Prepaid card 1A Card surface 2 Dark small circle 3 Dark large circle C1 to C7 columns L1 to L4 low

Claims (2)

[Scope of utility model registration request] 1. A dark circle on either side of "0" or "1" of each bit of balance data composed of binary values on the card surface and a mark on the other side of the card surface. In the prepaid card in which the balance is displayed by color, at the position where the balance is displayed, one of "0" and "1" of each bit of the other balance data composed of binary values is a dark circle The prepaid card, wherein the dark-colored large circle is overwritten on the dark-colored small circle. 2. The prepaid card according to claim 1, wherein at least one of the marks constituting each balance display on the surface of the card is a dark color mark.