JP3012413U - Prepaid card read / write device with decryption function - Google Patents

Abstract

(57) [Abstract] [Purpose] Providing a prepaid card read / write device with a decryption function that enables the confidentiality of the balance to be maintained by generating and decrypting a decryption procedure unique to each user. To do. [Structure] A read mechanism 5 for reading data from the prepaid card P, a writing mechanism 6 for writing updated data to the prepaid card P, and a microcomputer 2 that operates according to a procedure stored in the memory 3 are built-in, and The input device 10 for inputting the date is provided, and the memory 3
The decoding procedure generating means 11 for generating the decoding procedure 12 based on the input birth date and the control means 4 for decoding the data read by using the decoding procedure 12 are stored and configured.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a prepaid card reading / writing device, and in particular, has a decoding function for decoding the data to be printed on the surface of the prepaid card with a mark by a decoding procedure generated based on the date of birth entered by the user. It also relates to a prepaid card reading / writing device.

[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.

Therefore, mainly for the purpose of data tampering and fraud prevention, the balance is printed and displayed as a binary data on the surface of a card made of paper or plastic with a dark color mark, and the display is updated every time the balance is updated. Pre-paid cards with configurations have come to be used. With such a prepaid card, a balance display consisting of a series of dark-colored marks is added and printed side by side with the old balance display for each transaction.

As a prepaid card reading / writing device for reading and writing such a prepaid card, a reading mechanism for optically reading a series of dark color marks printed on the surface of the inserted prepaid card, and a reading device for reading. The control means that detects the current balance of the prepaid card from the signal, calculates the update balance after adjusting the transaction amount from this balance, and the old balance on the surface of the prepaid card as a series of dark marks. And a writing mechanism such as a printer that prints additionally on the side by side.

[0005]

[Problems to be Solved by the Invention] Generally, in order to secure the confidentiality of the balance data written on the prepaid card and increase the reliability, the balance data is encrypted and then written to the prepaid card. There is something. The data thus encrypted is decrypted after being read, and the balance data is obtained. However, in the system adopting such conventional decryption, the decryption procedure is common to the users, and the decryption procedure unique to each user is not assigned. For this reason, many users are supposed to use the same decryption procedure, which is a problem in maintaining confidentiality.

The present invention has been made in order to solve the problems of the prior art, and the purpose thereof is to allow each user to generate a unique decryption procedure to keep the balance confidential. An object of the present invention is to provide a prepaid card reading / writing device having an effective decoding function.

[0007]

[Means for Solving the Problems]

 The prepaid card read / write device with the decryption function of the present invention has a reading mechanism for reading data from the prepaid card, a writing mechanism for writing updated data to the prepaid card, and a date of birth input. Decoding procedure that has a built-in microcomputer that operates according to the procedure stored in the memory and that has an input device and a memory, and that generates a decoding procedure in the memory based on the input date of birth. It is characterized in that the generating means and the control means for decoding the data read by using the decoding procedure are stored.

[0008]

[Action]

 In the prepaid card reading / writing device having the decryption function of the present invention configured as described above, the decryption procedure generation means generates the decryption procedure based on the date of birth each time the user inputs the date of birth. This user-specific decryption procedure is generated, and the balance read from the prepaid card is decrypted by this individual-specific decryption procedure. The decrypted balance is settled, updated, re-encrypted and recorded on the prepaid card.

[0009]

【Example】

 FIG. 1 is a block diagram of an embodiment of a prepaid card reading / writing apparatus having a decoding function of the present invention. FIG. 2 is a plan view of a prepaid card loaded in the prepaid card reading / writing device of FIG. In FIG. 1, a prepaid card reading / writing device 1 having a decoding function of the present invention comprises a microcomputer 2 for controlling the entire device and a series of dark marks printed on the surface of an inserted prepaid card P. A read-out mechanism 5 for reading out data, a write-in mechanism 6 for writing the updated data as a series of dark-colored marks side by side with the old print on the surface of the prepaid card P for additional writing, and for operating programs of the microcomputer 2 and A memory 3 for storing and storing data, and a power supply circuit 9 connected to a power supply line S and supplying power to each part of the device are provided. The card discharge port 8 is for discharging the prepaid card P which has been processed.

Further, the prepaid card reading / writing device 1 is connected to an input device 10 for allowing a user to input the date of birth. The input device 10 is composed of a small keyboard or the like. The microcomputer 2 receives and processes this input signal.

The memory 3 is provided with a decoding procedure generating means 11 which is executed by the microcomputer 2. The decoding procedure generating means 11 generates the decoding procedure 12 based on the input date of birth. The generated decoding procedure 12 is temporarily stored in the memory 3. Further, in the memory 3, a control means 4 executed by the microcomputer 2 is stored. The control means 4 executes the decoding by using the generated decoding procedure 12.

As shown in FIG. 2, the prepaid card P loaded in the prepaid card reading / writing device 1 having the above-mentioned decryption function has its paper or plastic card surface encrypted. Since the balance is printed and displayed as the binary data with a dark color mark D, it is configured to be additionally printed and displayed each time the balance is updated. Therefore, the reading mechanism 5 preferably has an optical configuration that sends light to the card surface and reads it based on the intensity of the reflected light or the transmitted light from the dark color mark D. The writing mechanism 6 is preferably composed of a printing mechanism such as an inkjet printer.

Next, the operation of the prepaid card reading / writing device 1 having the above-mentioned decryption function will be described. First, when the prepaid card P is loaded in the reading mechanism 5 at the time of transaction settlement and the date of birth is input from the input device 10, the decryption procedure generating means 11 executed by the microcomputer 2 causes the input date of birth to be input. A decoding procedure 12 is generated based on The generated decoding procedure 12 is temporarily stored in the memory 3. When the reading mechanism 5 reads the latest recorded data on the card surface, the microcomputer 2 drives the generated decoding procedure 12 to decode the recorded data and restore the latest balance. The control means 4 subtracts the transaction settlement amount from the restored latest balance to update the balance.

[0014]

[Effect of device]

 As described above, the prepaid card read / write device with the decryption function of the present invention decrypts the user-specific decryption based on the date of birth each time the user inputs the date of birth. Since the read data is decrypted according to the decryption procedure unique to each person, the decryption procedure generating means for generating the decryption procedure is provided, so that the confidentiality of the balance data can be kept, and thus the reliable prepaid card system. Will be possible to build.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of a prepaid card reading / writing device having a decoding function of the present invention.

FIG. 2 is a plan view of a prepaid card loaded in the prepaid card reading / writing device having the decoding function of FIG.

[Explanation of symbols]

 1 Prepaid card reading / writing device having a decoding function 2 Microcomputer 3 Memory 4 Control means 5 Reading mechanism 6 Writing mechanism 8 Card outlet 9 Power supply circuit 10 Input device 11 Decoding procedure generating means 12 Decoding procedure P Prepaid Card D Dark color mark S Power line

Claims (1)

[Scope of utility model registration request] 1. A reading mechanism for reading data from a prepaid card, a writing mechanism for writing updated data to the prepaid card, an input device for inputting a date of birth, and a memory, which are stored in the memory. Decoding procedure generating means that includes a microcomputer that operates according to the procedure and that generates a decoding procedure based on the date of birth input to the memory, and decodes the read data using the decoding procedure. A prepaid card reading / writing device having a decryption function, characterized in that it is configured to store the control means.