JP2001350590A - Input device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an input device which makes it difficult to see through a password, etc., while inputting. SOLUTION: The input device includes an input means composed of a touch screen 14 where a touch is regarded as input in such a case and a display means which changes a display according to random number information so that an array of elements 12 such as characters, numbers, and symbols to be set on the touch screen is a different array at input time so as to input the array.

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 instructions and data to a computer, and more particularly to an input device suitable for inputting a password.

[0002]

2. Description of the Related Art For example, in the case of operations related to settlement such as handling of an automatic teller machine installed in a bank, or access to an area where only a specific person is permitted to use, a so-called so-called so-called so-called "automatic teller machine" is used. An encryption number and a password are used as conditions for computer input. Generally, a password is composed of a combination of numbers and passwords are composed of a combination of letters and numbers.To maintain the confidentiality of the operator, cover the operation surface of the input device with a hood or cover. It is normal that there is.

However, even if it is not possible to see the entire operation surface of the input device, it is not difficult to see it. By observing well, it is possible to determine which button (key) is pressed at the position of the fingertip, and the approximate position can be determined even in the area where it cannot be determined, which is combined with the short number of digits in the password request code. This is because it is considered that they can be located relatively easily.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to provide an input device which is difficult to find, for example, the password. Another object of the present invention is to provide an input device in which the arrangement of elements such as letters and numbers can be changed at any time so that the movement of a fingertip for input operation does not point to a specific position.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an input means consisting of a touch screen which is regarded as an input when touched, and an arrangement of elements such as letters, numbers and symbols. In addition, the input device includes a display means for redisplaying an array of elements to be set on the touch screen as a different array at the time of input according to random number information. The array of elements can be changed for each input.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An input device according to the present invention is for inputting instructions and data to a computer. As its input means, the device uses a touch screen, which when touched is considered an input. The touch screen is sometimes called a touch panel, but both are the same.

An input unit is provided on the touch screen in place of the numeric keypad provided on the conventional operation panel. The input section comprises an array for inputting elements such as letters, numbers, symbols, and the like. The arrangement of the conventional numeric keypad can be the same arrangement as the input unit in the present invention. If the input elements are limited to the numbers from 0 to 9 and the conventional numeric keypad is provided with a certain arrangement, the input unit in the present invention is arranged in the same manner even if the input unit is limited to the numbers from 0 to 9 Is changed, for example, every time an input is made, so that the positions of the numbers are not fixed. Elements other than numbers, such as letters, symbols, or numbers, and combinations thereof can also be used.

Although the combination of input elements may be composed of any number of elements, it is considered that the present invention increases the security even if the number of elements is reduced. It is easy to imagine that the same number of elements would greatly increase security.

The arrangement of the elements of the input to be displayed on the input means consisting of a touch screen follows a random number display. The random number display means is provided, and the random number information is sent to the setting means by the display means. As the random number information, information generated by a known method such as a square center method, a congruential method, a shift register method, or the like can be used. The more random the generated random number information, the better the object of the present invention is achieved.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in the drawings. FIG. 1 shows an example of an input means, and a plurality of sections 1 in which input elements 12 are arranged on a display panel 11 made of a liquid crystal panel.
3 is provided. As the display plate 11, an EL plate (electro-luminescence plate) other than a liquid crystal plate can be used. A touch screen 14 is overlaid on the display board 11. The touch screen 14 is provided with a section 15 having an arrangement configuration overlapping the section 13 in which the input element 12 is displayed.

What has been described above as an input element is, for example, a number, a character or the like which directly constitutes a password. However, cancellation = cancel (Cancel) and input = enter (Enter) which are necessary in connection with the input operation
An instruction such as r) can be one of the input elements 12.
That is, the selection of moving the position of the instruction button (key) 16 is naturally included in the present invention.

The input means 17 composed of the display panel 11 and the touch screen 14 is connected to a calculation unit 19 via a control unit 18. See FIG. The arithmetic unit 19 is a random number information unit 21
, And the obtained random number information is sent to the control unit 22 of the display panel 11. The operation unit 19 is also connected to an output unit 23 which is a communication control unit, and exchanges information between the operation unit 19 and a server or the like.

Therefore, in the operation preparation state of the input device according to the present invention, the input elements 12
Or only the section is displayed, and each time an input operation is newly started, the input elements 12 are rearranged in a completely different arrangement. An example is shown in FIGS. 2A to 2C, and an instruction button (key) 1
It can be seen that all numbers except 6 are randomly replaced.

The operation process will be described with reference to FIG. For example, when an authentication system such as an automatic teller machine requests input of a personal identification number, the input means 1
7 are randomly rearranged, and when a password is input based on the random arrangement on the touch screen, the arrangement of the input elements 12 is read and sent to the authentication system. Sent as password data. After this transmission, the numbers 0 to 9 that have been displayed up to that time are hidden or set to the above-mentioned normal arrangement, and at the same time, it is notified that the element arrangement of the touch screen changes.

[0015]

Since the present invention is constructed and operates as described above, the arrangement of numbers and the like can be changed each time an input is made, so that secret matters such as a personal identification number cannot be detected depending on the position of the fingertip. This makes it difficult to increase confidentiality. Conversely, a highly confidential input device is formed by changing the position of an input element.
If a digit is required, the reliability is sufficiently high when the digit is 5 digits or less, and remarkable effects such as improvement of operability, reduction of time, and improvement of anti-theft property are obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a part of an embodiment of an input device according to the present invention.

FIG. 2A is a diagram illustrating a first variation of the element array. (B) Explanatory drawing of the example 2 of a change of an element array. (C) Explanatory drawing of the example 3 of a change of an element array.

FIG. 3 is a block diagram showing an embodiment of the device of the present invention.

FIG. 4 is also a flowchart.

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Claims (2)

[Claims] 1. An input device for inputting instructions and data to a computer, comprising input means comprising a touch screen whose touch is regarded as input and an array of elements such as letters, numbers and symbols. An input device configured to display an array of elements to be set on the touch screen as a different array at the time of input according to random number information. 2. An input device for inputting instructions and data to a computer, the input device comprising a touch screen whose touch is regarded as an input when touched, and an AD conversion of input information from the touch screen, and an arithmetic unit Having a control unit to send to the input means to receive the random number information generated by the arithmetic unit, and to be able to update the input elements to be displayed on the touch screen as a random array each time an input operation, An input device comprising a communication control unit for exchanging signals between an arithmetic unit and a server or the like.