JPS58146966A - Matching device of secret number - Google Patents

Abstract

PURPOSE:To prevent illegal using of a credit card, by magnetically recording a secret number in the credit card and inputting the secret number in addition to user's signature to check the consistency. CONSTITUTION:A credit card owner (customer) delivers the card to a clerk at the purchase of articles. The clerk checks the signature and inserts the card into a magnetic card reader 6. When the customer inputs the secret number through ten keys 4, an input checking lamp 5 is turned on, but the number is not displayed. When the inputted number coincides with the magnetic record, the customer is recognized as the card owner himself. Although several inputs are permitted considering input miss, inputs more than the fixed times are invalidated. If the lost card number already noticed is stored in the internal memory, the lost card can be easily found out from the read-out number. Thus illegality can be prevented by a simple device.

Description

[Detailed description of the invention] When purchasing a P4IJ product using an E14μ card issued by a credit company, etc., at a store, the name of the magnetic card and the card number 7 must be 8 or the same. person
This relates to a precise password verification device that checks whether a person is a family member.

BACKGROUND ART Conventionally, when purchasing goods with a credit card, it is necessary to check the reliability of the card, and the following methods have been used to check the reliability of the card. That is, (1) Verify the signature on the signature panel of the credit card with the signature 1r on the title confirmation slip.

However, it is difficult to confirm mismatches without the help of experts when comparing nine items, and as a result, in reality, purchases are made without sufficient verification, and stores are often crowded. In such a case, it becomes impossible to perform signature verification &Ik. Furthermore, if the card is used by a family member, it is impossible to perform a verification check as no signature is displayed.

(2) Checking whether it is an accident card (erasure card)
1) Call the credit card company and ask.

In this case, it would be impossible to take a long time to deal with inquiries, and the credit company would be closed. Sometimes I can't make it until 9pm. Furthermore, even if the card is stolen and lost, it can be checked before it is registered as an accident card at a credit company.If the signature check described in (1) above is insufficient, unauthorized use cannot be prevented.

(3) A method of checking the connection using a combiator terminal from a credit card company or each data service company.

Although this method provides a more accurate check, the equipment is expensive and has the drawback of being expensive and too expensive to install in many stores.

The present invention eliminates the above-mentioned disadvantages of the conventional credit card abolition method by using a magnetic credit card that has a PIN number recorded on it, and when using the credit card, the PIN number and the magnetic card are recorded by the credit card user. The purpose is to obtain a nine-IFM number verifier by comparing the recorded number with the one that is accurate, simple, and quick.

#i will be explained below according to the drawings.

FIG. 1 is a schematic perspective view showing the entire PIN verification device according to the present invention, and shows the PIN verification device IKtl! , IJ upper set switch 2. Power indicator lamp 3. PIN number entry device (numeric key) for the credit card holder (customer) 4.
Input *g Display lamp 5 (in the figure, 4 digits are displayed, so 4 lamps are used),! Qi card reader 6, display lamp 7
, mismatch indicator lamp8. Accident card display lamp9. Read error lamp 10. Plug 11. Processing device (microcomputer) 12. Accident credit card honor mark t1
Device (P-ROM)13. 14 N (P-ROM for checking abuse) is provided to control the number of repetitions and failures.

Figure 2 is a control block diagram of the PIN verification device shown in TS1 diagram, and Figure @3 is its processing flowchart. The number 3 lights up and the work status is 1.

Next, the operation will be explained.

First, have a credit card! (Customer) When purchasing goods at a store, the customer hands over the credit card with the member code and PIN code recorded on it to the store clerk, and then uses the device i.
Enter the password using the numeric key 4. This II
The KIit identification number is not displayed on the unlocked machine number, but the input aI authentication indicator lamp S lights up to simply indicate that the number of digits has been input. This means that when displaying input numbers, S
This is to prevent such meetings since there is a risk that the customer's (card holder's) PIN number may be stolen by a person. In addition, the clerk said that this credit card is a continuation 4 with which magnetic card reader 6! Perform operations. This completes the operation of the PIN verification device.

On the other hand, inside the PIN verification device I, the process Il! lll1
According to 2, when the human power from the card reader 6 is compared with the information from the FROM (storage device) 13 distributed by the credit company and written with the next accident credit card number, if the card is matched with the accident card, The credit card is an accident card 1irk@Accident display lamp 9
11t lights up, and if there is no information, it is not an accident card, so it is sent to the next step and is discarded with the password code input. If the PIN code and the card reader are the same, the lamp 7t will light up to indicate that the credit card belongs to the holder of Seigo and can be used for shopping. The mismatch indicator lamp 8 is turned on to instruct the user to enter the correct password manually. At this time, if it is possible to re-enter the PIN an unlimited number of times, if the code number is 4 digits, the PIN must be entered a maximum of 9999 times. There is a risk that this discrepancy detection function may be misused, so to prevent such situations from occurring,
A misuse checking FROM 14t is provided as a circuit for regulating the number of repeated inputs, and if a mismatching operation is performed several times or more, the membership code is stored in the FROM 14 so that the operation cannot be performed again. Additionally, if the magnetic card cannot be read due to 411F- or electrical damage, the read error lamp 9 is turned on.

The processing flowchart in FIG. 3 is based on the above-mentioned process.
This is shown in the i7At diagram. 1 liter, enter your pin code, and insert your card! The collation order between the input and the output from the card FROM may be changed.

As mentioned above, according to the PIN number combination device according to the present invention, it is possible to easily check the PIN number of a credit card, etc. without leaking it to anyone else, and it is possible to easily check whether the PIN number of a credit card, etc. If you write the accident card number in the accident card FROM13 and distribute it to each store,
Not only can each store easily prevent unauthorized use, but the rMII procedures can also be multiplied. Furthermore, this device has a simple configuration and is capable of fully demonstrating its functions with a small II & enclosure type device 12p, so it does not require a central processing unit. Not only can it be processed, but it can also be used in conjunction with a single child register, making it possible to create an inexpensive combination.

[Brief explanation of the drawing]

Fig. 1 shows a slight diagonal diagram of the personal identification number verification device based on @#, Fig. 2 is a control block diagram thereof, and Fig. 3 is a processing flowchart. l...Password verification device, 4...Password verification device key-15...Input W authentication display means (lamp), 6...Magnetic cart reader, 7.Good display means (lamp) ),
8... Inconsistency display means (lamp), 9... Accident card display means (lamp), 12... Process II@It (microcomputer), 13... Accident credit card number storage device (PROM) , 14...Repetition number regulation device (FROM). Attorney Makoto Kon

Claims (1)

[Claims] Password number 11 Input key 1 Accident credit card number 1
ETL device, comparison verification in case of discrepancy, number of returns regulation device, and furthermore, where a credit magnetic card reader is connected. If the information matches, the accident card display + stage is activated, and if there is a discrepancy, the accident card display means is activated, and when there is a discrepancy, the accident card display means is activated, This password verification device is constructed so that when there is a discrepancy, the password verification means 1f@plow can be used to input the password string through a circuit that controls the number of times the input card is returned (1-*).