JPS60247778A - Individual certifying device - Google Patents

Abstract

PURPOSE:To certify an individual when the cumulative value of decision results is larger than a specific value and to improve the reliability of the device by registering various question subjects of respective individuals and their answers previously by pieces of specific information, and deciding the right answer degree of an answer to a question when specific information is inputted. CONSTITUTION:When a keyboard 5 is connected to the CPU1 of the individual certifying device and the device is placed in a registration mode, various question subjects of respective individuals and their answers are registered in an individual information memory 4 by the program in a ROM2. Further, any of them are already registered, their contents are updated. Then, when a card reader 6 reads information on a certification card and supplies it to the CPU1, the question subject of corresponding specific information is read out of the memory 4 and displayed on a CRT7. A person to be certified inputs an answer to the question on the keyboard 5 over a look at the display and a RAM3 is stored with whether the answer is correct or not. The individual is certified when the cumulative value of correct answers to plural questions is larger than the specific value.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a personal authentication device, and particularly to a personal authentication device for determining, for example, whether or not the person is the person in question.

Description of the Prior Art Personal authentication devices are used in various fields such as ATMs (Automatic Tellers Machines), CATs (Credit Authorization Terminals), and building occupancy permit devices. By the way, with conventional personal authentication devices,
Most devices require an individual to enter a personal identification number and determine whether or not the person is the person by checking whether the personal identification number matches a pre-registered personal identification number. However, with such an authentication device, if a certain degree of ingenuity is used, it is possible for another person to intentionally commit fraud, and in fact, this type of crime is occurring frequently. Therefore, there is a strong demand for a personal authentication device that is difficult to abuse and that can perform accurate personal authentication.

OBJECT OF THE INVENTION It is an object of the present invention to provide a personal authentication device that can satisfy the above-mentioned demands.

Structure and Effects of the Invention To summarize, the present invention registers various questions and answers for each specific information in advance to authenticate each individual, and when the specific information is input, the system registers the questions and answers corresponding to the specific information. The registered quality-items are sequentially read out from the registration means, questions are asked, it is determined whether the answer to this question is correct, the results of this determination are weighted and accumulated, and this cumulative value is greater than a predetermined value. When the person grows up, it is determined that the person is the person himself/herself.

According to this invention, since personal authentication is performed comprehensively using various questions that only the person himself/herself knows,
Compared to conventional personal authentication devices, there is far less room for misuse, and extremely accurate personal authentication can be performed.

Hereinafter, this invention will be described in more detail with reference to embodiments shown in the drawings.

DESCRIPTION OF THE EMBODIMENTS FIG. 1 is a schematic block diagram showing an embodiment of the present invention. In the figure, CPU1 includes ROM2 and RAM.
3 is connected. The operating program for the CPU 1 is stored in the ROM 2. The RAM 3 stores various data necessary for data processing by the CPU 1. The CPU 1 also has a personal information registration memory 4. Keyboard 5. card reader 6,
A CRT display 7 is connected. In the personal information registration memory 4, various questions and answers used to authenticate each individual, and numerical values representing the importance of each question are registered for each individual. Keyboard 5 is CPU 1
It is for inputting various data into C.
It includes means for inputting answers to questions issued from PU1.

The card reader 6, which is an example of specific information input means, is a device for reading recorded information from cards issued to each individual in advance. This card has personal information registration memory 4.
Specific information for identifying any person registered in is recorded in advance. This specific information is, for example, an account number.

When an account number is used as the specific information, the personal information registration memory 4 stores various questions and answers for each account number. The CRT display 7 is for displaying operational guidance and questions.

Further, a determination output 8 as to whether or not the person is the principal is derived from CPLll.

FIG. 2 is a flowchart for explaining the operation of the CPU shown in FIG. 1 in the registration mode. As shown in the figure, in this registration mode, whether personal information (questions and answers) is registered in the personal information registration memory 4 (step S
1 and S2), or already registered personal information is modified (steps S3 and S4).

FIG. 3 is a flowchart for explaining the operation of the CPLI 1 shown in FIG. 1 in the personal authentication mode. The operation in the personal authentication mode will be described below with reference to FIG.

First, a person who wishes to receive personal authentication inserts a card into the card reader 6. Accordingly, in step 5-10, the card information recorded on the card is read by the card reader 6. This card information includes specific information such as account number and registration number. The CPU reads questions corresponding to this specific information from the personal information registration memory 4 and displays them on the CRT display 7 (step 511). The person seeking authentication looks at the questions displayed on the CRT display 7 and inputs the answers using the keyboard 5 (step 512). In step 813, the CPU 1 determines whether the answer input from the keyboard 5 is correct. This judgment is based on the keyboard 5
This is done depending on whether or not the answer inputted from the personal information registration memory 4 matches the answer registered in the personal information registration memory 4. If the result of the judgment in step 813 is not correct, step 8
If the answer is correct, the process proceeds to step 314. In this step 814, weighting is performed according to the content of the question so that the content of the question with a high degree of importance in performing personal authentication is given a large value. That is, a value representing the importance of the question is read from the personal information registration memory 4. The numerical value representing the importance of the question read from the personal information registration memory 4 is stored in the summation register in the RAM 3 in step S15. The process then proceeds to step 816;
It is determined whether all questions stored in the personal information registration memory 4 have been answered. If you still have questions, please
The operations from step 811 onwards are repeated again. If it is determined that all questions have been completed, the process proceeds to step S17, where it is determined whether the value of the summation register is greater than a predetermined constant value. If the value of the summation register is larger than a predetermined constant value, the process proceeds to step 818, where it is determined that the person is the real person, and the determination output 8 is set to, for example, a high level. On the other hand, if the value of the summation register is smaller than a predetermined constant value, the process proceeds to step S19, where it is determined that the person is not the real person, and the determination output 8 is set to, for example, a low level. The operation after step 818 or 819 ends.

In the above-mentioned embodiment, the questions are displayed on the CRT display 7 and the answers are entered from the keyboard 5), but other answer methods as follows may also be used. For example, questions and answers are displayed on a CRT display, and the user is asked to judge whether they are correct or not. Further, questions and multiple types of answers are displayed on the CRT display, and the user is asked to select the correct one.

Further, in the above embodiment, the questions are displayed on the CRT display, but the questions may be asked by voice. In the above-described embodiment, questions are input using the keyboard 5, but answers may also be input using a light pen, a touch panel, a voice input device, or the like.

Furthermore, in the above embodiment, if the answer to the question is correct, it is weighted according to the content of the question (step 814), but such weighting is not performed and the number of correct answers is directly stored in the total register. may be stored in In this case, if the number of correct answers accumulated in the total register is equal to or greater than a predetermined certain value, or if all questions are answered correctly, it may be determined that the person is the real person.

[Brief explanation of drawings]

FIG. 1 is a schematic block diagram showing one embodiment of the present invention. FIG. 2 is a flowchart for explaining the operation of the CPU 1 shown in FIG. 1 in the personal information registration mode. FIG. 3 is a flowchart for explaining the operation of the CPIJl shown in FIG. 1 in the personal authentication mode. In the figure, 1 is CPU, 2 is ROM, 3 is RAM, 4
5 is a personal information registration memory, 5 is a keyboard, 6 is a card reader, and 7 is a CRT display. (2 others) Figure 1: Figure 1: Figure 2: Figure 3

Claims (5)

[Claims] (1) A personal authentication device for determining whether the person is the person in question, a registration means in which various questions for authenticating each individual are registered in advance for each specific information, and for inputting the specific information. specific information input means, when the specific information is input by the specific information input means, question means that sequentially reads questions registered corresponding to the specific information from the registration means and asks questions; an answer input means for inputting an answer to the question, a correct answer determining means for determining whether the answer inputted by the answer input means is correct, an accumulating means for accumulating the discrimination output of the correct answer discriminating means, and an accumulating means for accumulating the discrimination output of the correct answer discriminating means; A personal authentication device comprising a determination means that determines that the person is the person when the value becomes larger than a predetermined value. (2) The personal authentication according to claim 1, wherein the specific information is recorded on the card in advance, and the specific information input means includes card information reading means for reading the recorded information on the card. Device. (3) In the registration means, the answers to the various questions are registered, and the correct answer determination means distinguishes between the answers input by the answer input means and the answers registered in the registration means. The personal authentication device according to claim 1 or 2, which includes a match determining means for determining whether or not there is a match. (4) further comprising weighting means for weighting the discrimination output of the discrimination means and accumulating it in the accumulation means;
A personal authentication device according to any one of claims 1 to 3. (5) Numerical values representing the weighting of the various questions are registered in advance in the registration means, and the modeling means reads out the numerical values representing the corresponding weightings from the registration means and stores them in the accumulating means. 5. The personal authentication device according to claim 4, comprising means for accumulating.