JP2002032176A - Input device and key arrangement method thereof - Google Patents

Abstract

(57) [Problem] To provide an input device capable of protecting a personal identification number without deteriorating operability as compared with the related art, and a key arrangement method thereof. Each time a new process is performed so that the key arrangement on the touch panel 10 when the operator M is operating and the key arrangement on the touch panel 10 when the operator W is operating are changed. Next, the key arrangement on the touch panel 10 is changed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an input device for inputting a password and the like and a key arrangement method therefor.

[0002]

2. Description of the Related Art Cash dispensers (CDs: cash disp)
sensor), automatic teller machine (ATM: auto)
In the case of the “magic teller's machine”, the information recorded on the magnetic card is combined with the input of a password as a password to confirm that the user is a legitimate user and to prevent unauthorized use. ing. In addition to these, the use of debit cards has been started, but since the debit card leaves the card to a clerk at the time of use, if the clerk is malicious, unauthorized operation (skimming: illegal copying of magnetic contents) is performed. It can be done easily. In addition, since terminals are installed in many stores, it is easy for a third party other than a clerk to attach skimming equipment to the terminals and steal data. However, since the data relating to the personal identification number is not stored in the card, it is impossible to illegally use the card only by stealing the data in the card. Therefore, in the case of a debit card, protection of a personal identification number is particularly important. For these passwords, generally, four-digit numbers obtained by combining integers of 0 to 9 are used. For a password input device, a ten-key keyboard or a touch panel keyboard is used. Password had been entered.

[0003]

However, in the above-described conventional input device, when the movement of a finger when inputting a personal identification number is observed, there is a danger that it is easy to guess what number has been pressed. . In particular, at a general cash register or the like other than the dedicated installation place where the surveillance camera or the like is arranged, there is a high possibility that the cash register can be peeped from behind or a staff member of the cash register. Therefore, there is a problem that the password can be easily guessed even if the actual keyboard number is not visible.

[0004] It is an object of the present invention to provide an input device capable of protecting a personal identification number without deteriorating operability as compared with the related art, and a key arrangement method thereof.

[0005]

The present invention solves the above-mentioned problems by the following means. In addition, in order to make it easy to understand, description is given with reference numerals corresponding to the embodiments of the present invention, but the present invention is not limited thereto. That is, according to the first aspect of the present invention, an input unit (10), a display unit (11) for displaying a value input by the input unit on the input unit, and a key arrangement for displaying the value on the display unit are randomly arranged. An input device comprising: a key arrangement selecting unit to be selected; and a display control unit for displaying a key arrangement selected by the key arrangement selecting unit on the input unit.

According to a second aspect of the present invention, in the input device according to the first aspect, the input unit is a push button type keyboard, and the display unit is provided at or near a button top of the keyboard. An input device characterized in that:

According to a third aspect of the present invention, there is provided a touch panel (10)
And a key arrangement storage unit (24) for storing a key arrangement which is an arrangement pattern of a keyboard displayed on the touch panel.
A random number generation unit (23) for generating a random number; and a key arrangement selection unit (22) for selecting a key arrangement stored in the key arrangement storage unit based on the random number generated by the random number generation unit.
And a display control unit (21) for displaying a key arrangement selected by the key arrangement selecting unit on the touch panel.

[0008] The invention of claim 4 is the first to third aspects of the present invention.
In the input device according to any one of the above items, the key arrangement selecting unit (22) may be configured to perform the following before a new input is performed.
An input device for reselecting a key arrangement.

[0009] The invention of claim 5 is the invention of claim 3 or claim 4.
3. The input device according to claim 2, wherein the key arrangement storage unit (2)
The key arrangement stored in 4) is an input device characterized by being arranged with a predetermined regularity.

The invention of claim 6 is the invention of claims 1 to 5
In the input device according to any one of the above, the keyboard is a numeric keypad, and a number to be input is 0 to 0.
An input device characterized in that it is a password that is a combination of integers up to 9.

A seventh aspect of the present invention is a key arrangement method for an input device for displaying a value inputted at a position corresponding to the keyboard after randomly selecting an arrangement pattern of the keyboard.

According to an eighth aspect of the present invention, there is provided a touch panel (10).
The key arrangement method of the input device is to store a keyboard arrangement pattern to be displayed in advance, generate a random number, select a stored keyboard arrangement pattern based on the random number, and display it on the touch panel.

[0013]

Embodiments of the present invention will be described below in more detail with reference to the drawings. (First Embodiment) FIG. 1 shows a first embodiment of an input device according to the present invention.
It is a block diagram of an embodiment. The input device according to the present embodiment is a terminal used for a debit card, and includes a touch panel 10 and a CPU 20.

The touch panel 10 is an input unit for inputting data by touching displayed buttons and marks with a fingertip, and includes a display unit 11, a position detection unit 12, and the like.

The display section 11 is a section for performing a display as an input guide, and for example, a liquid crystal display or a CRT display is used.

The position detecting unit 12 detects when a fingertip is touched.
It is a transparent sensor that detects the position of the display unit 11 on the screen, and is provided so as to overlap the display unit 11. The position detected by the position detection unit 12 is transmitted to the input value recognition unit 25.

The CPU 20 is a control unit for controlling the overall operation of the input device, and includes a display control unit 21, a key arrangement selection unit 2
2, a random number generation unit 23, a key arrangement storage unit 24, an input value recognition unit 25, an information exchange unit 26, and the like.

The display control section 21 is a section for controlling necessary display according to the processing stage. When a password is input, the display is performed according to the key arrangement selected by the key arrangement selecting section 22. .

The key arrangement selecting section 22 is a section for selecting a keyboard arrangement at random when inputting a personal identification number. The key arrangement selection unit 22 selects a key arrangement from the key arrangements stored in the key arrangement storage unit 24 based on the random number generated by the random number generation unit 23.

The random number generating section 23 is a section for generating a random number when the key arrangement selecting section 22 selects a key arrangement. The random number generation unit 23 randomly selects one numerical value from predetermined numerical values corresponding to the number of key arrangements stored in the key arrangement storage unit 24.

The key arrangement storage section 24 is a section for storing patterns of different key arrangements in advance as a keyboard arrangement table. In the present embodiment, 10 to 0 to 9
Ten patterns of key arrangement for arranging the integers are stored. 2 (1) to 2 (10) are diagrams showing key arrangement patterns stored in the key arrangement storage unit 24. FIG. As the key arrangement, numerical values can be arranged at all at random. However, in such a case, it is necessary to search for a target key at the time of input, which takes time for input and causes an input error. From such a point, the key arrangement in the present embodiment is a pattern having a certain regularity, so that it is not possible to determine which key has been input simply by observing the movement of the fingertip. Then, ten kinds of key arrangement patterns were prepared.

The input value recognition section 25 is a section for recognizing an input value input to the touch panel 10.
The information of the input position detected by the position detection unit 12 is compared with the information of the display unit 11 obtained from the display control unit 21 and the key arrangement selection unit 22 to recognize an input value corresponding to the input position.

The information exchange section 26 is a section for exchanging information of an input device such as an input value recognized by the input value recognition section 25 with a host computer provided outside.

Next, a flow of inputting a personal identification number in the present embodiment will be described. FIG. 3 is a flowchart relating to input of a personal identification number of the input device according to the present embodiment. In step (hereinafter referred to as S) 100, a transaction is started.

In S110, the random number generation unit 23
From among the 10 integers, a random number is generated to determine one numerical value.

In S120, the key arrangement selecting section 22
Refers to the keyboard layout table stored in the key layout storage unit 24.

In S130, the key arrangement selecting section 22
Selects and determines the key arrangement from the referenced keyboard arrangement table according to the random number generated in S110.

In step S140, the display control unit 21 arranges a keyboard in accordance with the key arrangement selected by the key arrangement selecting unit 22, and displays the keyboard on the display unit 11.

In S150, the operator inputs a personal identification number using touch panel 10. When the input is performed, the input value recognition unit 25 recognizes the input value.

In S160, CPU 20 determines whether the input value has been input to the specified number of digits. If the specified number of digits has been input, S170
To start processing such as settlement. If the input of the specified number of digits has not been completed, the process returns to S150, and the input of the next digit is performed.

FIG. 4 is a view showing a display example of the touch panel 10 when the processing of a certain person is completed and the processing of the next person is performed. It is assumed that when the operator M inputs the personal identification number, the random number generation unit 23 generates “1”. At this time, the key arrangement shown in FIG. 2A is selected, and a keyboard is displayed on the display unit 11 in accordance with this key arrangement [FIG.
(A)]. Next, when the operator W starts the operation, it is assumed that the random number generation unit 23 has generated “2”. At this time, the key arrangement shown in FIG. 2B is selected, and a keyboard is displayed on the display unit 11 in accordance with the key arrangement [FIG. 4B].

According to the present embodiment, the layout pattern of the keyboard is changed each time a new process is performed.
An input device which is inexpensive and has excellent security can be obtained without inferring a password from the movement of the fingertip. Also,
Since the layout of the keyboard is a pattern having a certain regularity, input can be performed easily.

(Second Embodiment) In the second embodiment, the contents of the keyboard arrangement table stored in the key arrangement storage unit 24 of the first embodiment are different, and the description of the common parts is omitted. I do. FIG. 5 (1) to FIG. 5 (3)
FIG. 9 is a diagram showing an example of a keyboard arrangement pattern stored in a key arrangement storage unit 24 in the second embodiment. In the keyboard, ten integers from 0 to 9 are arranged in a ring shape in numerical order, and each key is arranged depending on the position of 0. Therefore, also in this embodiment, there are a total of ten patterns including the illustrated one.

In the first embodiment, since the arrangement is similar to the arrangement conventionally used for many devices, for example, when a skilled operator operates a keyboard of a computer, an incorrectly In some cases, the user entered a value. Therefore, in the present embodiment, the keys are arranged in an annular shape, and it is clearly indicated to the operator that the key arrangement is different from the normal key arrangement, thereby preventing an erroneous operation.

In this embodiment, the key arrangement storage unit 24
Although the example in which the layout pattern of the keyboard is stored in advance is shown in the figure, the keyboard may be arranged such that the starting point is determined by a random number and numerical values are sequentially arranged.

According to the present embodiment, the keys are arranged in an annular shape to clearly indicate to the operator that the keys are arranged differently from the normal key arrangement. An input device that is high and has few erroneous operations can be provided.

(Modifications) Various modifications and changes are possible without being limited to the above-described embodiment, and these are also within the equivalent scope of the present invention. For example, in each of the embodiments, the example in which the layout pattern of the keyboard is a grid pattern or an annular shape, but is not limited thereto.
It may be in a horizontal row or the like. Further, in each embodiment, the input device has been described as an example in which the numerical value from 0 to 9 is input as the password, but the input device is not limited to this, and may include other characters and symbols, for example. Furthermore, in each embodiment, the example in which the input unit is a touch panel has been described, but the input unit is not limited to this, and for example, a display unit may be provided at the top or in the vicinity of a push-button keyboard.

[0038]

As described above in detail, according to the present invention, a display section for displaying a value input by the input section on the input section, and a key arrangement for randomly selecting a key arrangement for display on the display section. Since a selection unit is provided and the key arrangement can be changed, it is not possible to guess the operated key only by looking at the movement of the finger at the time of input, and it is possible to increase the security.

An input device including a key arrangement selecting section for selecting a key arrangement stored in a key arrangement storage section based on a random number generated by a random number generation section, and a display control section for displaying the key arrangement on a touch panel. Therefore, an inexpensive input device can be provided as in the case of the conventional product.

Further, the key arrangement selecting section reselects the key arrangement before a new input is performed, so that the security can be further improved.

Further, since the stored key arrangement is arranged with a predetermined regularity, even if the key arrangement changes, the operability is good and the key input can be easily performed.

[Brief description of the drawings]

FIG. 1 is a block diagram of a first embodiment of an input device according to the present invention.

FIG. 2 is a diagram showing a key arrangement pattern stored in a key arrangement storage unit 24;

FIG. 3 is a flowchart related to input of a personal identification number of the input device according to the embodiment.

FIG. 4 is a diagram illustrating a display example of the touch panel 10 when a process of a certain person is completed and a process of the next person is performed.

FIG. 5 is a diagram illustrating an example of a keyboard arrangement pattern stored in a key arrangement storage unit 24 according to the second embodiment.

[Explanation of symbols]

 Reference Signs List 10 touch panel 11 display unit 12 position detection unit 20 CPU 21 display control unit 22 key arrangement selection unit 23 random number generation unit 24 key arrangement storage unit 25 input value recognition unit

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G06F 3/03 380 G06F 17/60 250 17/60 236 G07D 9/00 421 250 461B G07D 9/00 421 G06F 3/023 310L 461 F term (reference) 3E040 DA03 FH02 FH04 FJ05 5B020 CC06 CC12 DD02 DD11 DD27 DD30 GG52 5B055 BB01 BB03 MM01 MM07 5B068 AA22 CC02 CC06 CC11 CD02 CD03 5E501 AC15 AC33 AC42 CA03 CB0514 CB02

Claims (8)

[Claims] An input unit; a display unit for displaying a value input by the input unit on the input unit; a key arrangement selection unit for randomly selecting a key arrangement to be displayed on the display unit; A display control unit for displaying a key arrangement selected by the arrangement selecting unit on the input unit. 2. The input device according to claim 1, wherein the input unit is a push button keyboard, and the display unit is provided at or near a button of the keyboard. Input device. 3. A touch panel, a key arrangement storage section for storing a key arrangement which is an arrangement pattern of a keyboard displayed on the touch panel, a random number generation section for generating a random number, and a random number generated by the random number generation section. An input device, comprising: a key arrangement selection unit that selects a key arrangement stored in the key arrangement storage unit; and a display control unit that displays a key arrangement selected by the key arrangement selection unit on the touch panel. 4. One of claims 1 to 3
The input device according to claim 1, wherein the key arrangement selecting unit reselects a key arrangement before a new input is performed. 5. The input device according to claim 3, wherein the key arrangement stored in the key arrangement storage unit is arranged with a predetermined regularity. Input device to do. 6. Any one of claims 1 to 5
The input device according to claim 1, wherein the keyboard is a numeric keypad, and the input number is a password that is a combination of integers from 0 to 9. 7. A method for arranging keys of an input device, wherein after selecting an arrangement pattern of a keyboard at random, a value inputted at a position corresponding to the keyboard is displayed. 8. A keypad of an input device for storing a keyboard layout pattern to be displayed on the touch panel in advance, generating a random number, selecting the stored keyboard layout pattern based on the random number, and displaying the keyboard layout pattern on the touch panel. Placement method.