JP3012528U - 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 values 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 where the balance is displayed by, either side of "0" or "1" of each bit of the other balance data composed of a binary value is a dark square 3 Is overwritten, and the dark square 3 covers the dark 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 an overwritable prepaid card in which balance data is displayed on the surface of the card in 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. Is causing problems.

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 mark 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. In the prepaid card in which the balance is displayed by the color of the card surface, at the position where the balance is displayed, one of the bits "0" and "1" of each bit of the other balance data composed of binary values is displayed. The dark-colored squares are overwritten, and the dark-colored squares are overwritten so as to cover the dark-colored circles. 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 with dark circles and is overwritten by dark squares covering the dark circles. For example, the dark square becomes "1". In the case of correspondence, after overwriting, it can be determined as "1" if a dark square is printed and "0" if other dark 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, a plurality of dark circles 2 are printed at corresponding positions of columns C1 to C7, the balance display is printed in order from rows L1 to L4, and already transacted data is printed in row L4. There is. That is, the dark 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 square 3 and the blank. As shown in the logical table in FIG. 3, if the first printed display on the card surface is a dark circle, the dark printed square will be overwritten as the second printed print. The dark circles are covered, so only the dark squares are displayed. The same applies when the first printout is blank.

If the first printed display that has already been made on the card surface is a dark circle and the overwriting as the second print is blank, only the dark circle is displayed. Since the reader can distinguish between dark circles and dark squares by the difference in light quantity or pattern recognition, this is regarded as blank in the second overwriting as printing. The same applies when the first print display is blank. As described above, overwriting is possible.

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

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

[0013]

As described above, the prepaid card of the present invention is already printed with a combination of dark circles and blanks, and is overwritten with the dark circles covered on it. Therefore, if the dark square corresponds to "1", for example, if the dark square is printed after overwriting, it is "1". If a colored circle or blank (card surface) 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 has a great effect on the 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 circle 3 dark square C1-C7 column L1-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 numbers on the card surface, and 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 square The prepaid card, wherein the dark squares are overwritten so as to cover the dark circles. 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.