JP5542510B2 - Input device and input method - Google Patents

Description

  The present invention relates to an input device and an input method for inputting a numerical value such as a password.

  "0" as an input device for entering a PIN when taking out cash with a bank automated teller machine (hereinafter referred to as "ATM") or when paying at a convenience store or mass merchandiser. An input device such as a keyboard in which numbers up to "9" are arranged or a touch panel that displays number keys is used. These input devices all have similar key arrangements, and if you can see the movements of your hands and fingers from other customers or shop assistants behind you, you can see the numbers you have entered. There is a problem that part or all of the password is known.

  FIG. 8 is a diagram illustrating an example of a key arrangement of numeric keys according to the conventional technique. FIG. 8A shows a key arrangement 91a which is an example of an arrangement of numeric keys used in ATM or the like. In the key arrangement 91a, number keys “7”, “8”, “9” from the left are arranged at the top, and number keys “4”, “5”, “6” from the left are arranged in the second stage. Number keys “1”, “2”, “3” from the left are arranged in the third row, and a number key “0” is arranged in the center of the bottom row.

  FIG. 8B shows a key arrangement 91b in which the left and right sides of the numeric key arrangement of the key arrangement 91a shown in FIG. In the key arrangement 91b, numeric keys “9”, “8”, “7” from the left are arranged at the top, and “6”, “5”, “4” from the left are arranged in the second stage. Number keys “3”, “2” and “1” from the left are arranged in the third row, and a number key “0” is arranged in the center of the bottom row.

  As described above, in ATM and the like, the arrangement of the numeric keys displayed on the touch panel is displayed by being reversed left or right or upside down to reduce the relevance between the position where the numeric keys are arranged and the input numerical value. The arrangement to change is limited and it is hard to say that there is a big effect.

  FIG. 8C shows a key arrangement 92 composed of mechanical numeric keys. The key arrangement 92 is the same key arrangement as the key arrangement 91a shown in FIG. 8A. However, as a result of repeatedly inputting the personal identification number “2669”, “9”, “ The numeric keys “6” and “2” are deteriorated. In this way, in the case of mechanical number keys, if the same password is repeatedly input, the number keys that are frequently pressed are quickly deteriorated, so that the password is likely to be estimated from the degree of deterioration. is there.

  As a first conventional technique for solving these problems, there is a password input device described in Patent Document 1. This personal identification number input device uses a fake pointer, that is, a pointer for simultaneously indicating a plurality of numbers. Confidential information including the shape of the fake pointer and information indicating which position among the numbers simultaneously selected by the fake pointer is the number to be input is known to the user together with the code number. Is done. The user inputs a password using this fake pointer. By moving the position of the fake pointer, when a part of the range of the fake pointer deviates from the numeric keyboard, it moves to a position opposite to the direction deviating from the deviated part.

  As a second conventional technique, there is an automatic transaction apparatus described in Patent Document 2. In this automatic transaction apparatus, the presence / absence of the left and right customers and the distance to the customer are detected by the customer sensor, and the position where the operation button is displayed is changed according to the detection result.

JP 2008-33924 A JP 2006-244104 A

  The first conventional technique makes it difficult to specify a number to be input by selecting a plurality of number keys including a number key of a number to be input and its surrounding number keys. In addition, there is a problem that it is necessary to remember the shape of the fake pointer and which position among the plurality of numbers specified by the fake pointer is the target number.

  The second conventional technique changes the display position of the entire display button, and can be made difficult to see from the positions of the surrounding customers, but cannot be made completely invisible. Also, since the arrangement of the individual numeric buttons in the entire display button has not changed, it can be estimated which numeric key is pressed from the position of the finger that pressed the numeric key. The problem remains.

  An object of the present invention is to provide an input device and an input method that make it difficult to specify a numerical value input by pressing a numeric key.

The present invention comprises a selection means for selecting a plurality of numerical values using a plurality of numerical keys assigned numerical values,
Computing means for computing a plurality of numerical values selected by the selecting means;
And input means for inputting a value of the operation result calculated by the calculation means as input values seen including,
The calculation means has a value obtained by adding the numerical values selected by the selection means as a calculation result,
The plurality of numeric keys include a plurality of numeric keys of at least 0, 1, 2, 3, 4, and 5, and are arranged symmetrically .

  Further, the present invention is characterized in that the calculation means calculates a plurality of numerical values simultaneously selected by the selection means.

  Further, in the present invention, the plurality of numeric keys may include two or more combinations of two numeric keys for setting the input value to an integer value of 1 to 9 for each integer value of 1 to 9. It contains as many numeric keys as possible.

  Further, the present invention is characterized in that the plurality of numeric keys include at least two 3 and two each of 0, 1, 2, 4, and 5.

  Further, according to the present invention, the plurality of numeric keys have a numerical value difference of 1 displayed on two numeric keys adjacent to each other in the horizontal direction, and are displayed on two numeric keys adjacent to each other in the vertical direction. The difference between the numerical values is 2 or 1.

  Further, the present invention is characterized in that the plurality of numeric keys display an added value, which is a value obtained by adding numerical values displayed on the adjacent numeric keys, at each boundary portion of the adjacent numeric keys. To do.

  In the invention, it is preferable that the plurality of numeric keys are used for inputting a personal identification number.

The present invention is also an input method for inputting a numerical value with an input device having a selection means for selecting a plurality of numerical values using a plurality of numerical keys to which the numerical values are assigned,
A calculation step for calculating a plurality of numerical values selected by the selection means;
An input step of inputting the value of the computed operation results in calculation step as input values seen including,
In the calculation step, a value obtained by adding the numerical values selected by the selection means is set as a calculation result,
The input method is characterized in that the plurality of numeric keys include at least 0, 1, 2, 3, 4, and 5 numeric keys and are arranged symmetrically .

According to the present invention, the selection means selects a plurality of numerical values using a plurality of numerical keys to which numerical values are assigned. The calculation means calculates a plurality of numerical values selected by the selection means. And an input means inputs the value of the calculation result calculated by the calculating means as an input value. That is, since the operation result of the selected plurality of numerical values is used as the input numerical value, it is possible to make it difficult to specify the numerical value input by pressing a numerical key that specifies the numerical value, for example.
Further, since the calculation means uses the value obtained by adding the numerical values selected by the selection means as the calculation result, the user can input the target numerical value by addition which is a simple calculation.
In addition, since the plurality of numeric keys include a plurality of numeric keys of at least 0, 1, 2, 3, 4, and 5 and are arranged symmetrically, it is equally easy for left-handed users and right-handed users. Can be entered.

  Further, according to the present invention, the calculating means calculates a plurality of numerical values simultaneously selected by the selecting means, so that the user can select the numerical values simultaneously, for example, by pressing a number key at the same time. You can enter values that are difficult to do.

  Further, according to the present invention, the plurality of numeric keys has two or more combinations of two numeric keys that make the input value an integer value of 1 to 9 for each integer value of 1 to 9. Includes as many numeric keys as you can. Therefore, the user only needs to select two numeric keys, and the number of combinations of two numeric keys that can be specified by the movement of the hand or finger increases, so that it is more difficult to specify the numerical value to be input. be able to.

  Further, according to the present invention, the plurality of numeric keys include at least two 3 and two each of 0, 1, 2, 4 and 5, so that an integer of 0 to 9 can be selected by selecting two numerical values. Can be entered.

  Further, according to the present invention, the plurality of numeric keys have a difference in numerical value displayed on each of two numeric keys adjacent to each other in the horizontal direction, and each of the two numeric keys adjacent to each other in the vertical direction. The displayed numerical difference is 2 or 1. Therefore, the arrangement of the numeric keys can be simplified, and the arrangement of numeric keys that can be easily selected by the user can be achieved. Moreover, about the integer of 1-9, the input with a numerical key adjacent to each other can be performed.

  Further, according to the present invention, the plurality of numeric keys are displayed at the respective boundary portions of the numeric keys adjacent to each other because an added value that is a value obtained by adding the numeric values displayed on the numeric keys adjacent to each other is displayed. The user can select and press a numeric key to be pressed to input a target numerical value by referring to the added value without performing calculation.

  According to the present invention, since the plurality of numeric keys are used for inputting a password, it can be used as an input device for inputting the password at an ATM, a convenience store, a mass retailer, or the like.

According to the present invention, when inputting a numerical value with an input device having a selection means for selecting a plurality of numerical values using a plurality of numerical keys to which the numerical values are assigned, the calculation step includes a plurality of selections made by the selection means. Calculate numerical values. In the input step, the value of the calculation result calculated in the calculation step is input as an input value. That is, since the operation result of the selected plurality of numerical values is used as the input numerical value, it is possible to make it difficult to specify the numerical value input by pressing a numerical key that specifies the numerical value, for example.
Further, since the calculation step uses the value obtained by adding the numerical values selected by the selection means as the calculation result, the user can input the target numerical value by addition which is a simple calculation.
In addition, since the plurality of numeric keys include a plurality of numeric keys of at least 0, 1, 2, 3, 4, and 5 and are arranged symmetrically, it is equally easy for left-handed users and right-handed users. Can be entered.

It is a block diagram which shows the structure of the input device 1 which is one Embodiment of this invention. It is a figure which shows the example of the key layout of the number key part. It is a figure which shows the process sequence of the PIN input process which the PIN input process part 111 processes. It is a figure which shows the process sequence of the key input process which the key input process part 112 processes. It is a figure which shows the example of the number key deteriorated by the input of a PIN code. It is a figure which shows the example of the key structure of the number key part. It is a figure which shows the other example of the key layout of the number key part. It is a figure which shows the example of the key arrangement | positioning of the number key by a prior art.

  FIG. 1 is a block diagram showing a configuration of an input device 1 according to an embodiment of the present invention. The input device 1 is a device for inputting a personal identification number, and is used in an ATM, a convenience store, a mass retailer, or the like. The input device 1 transmits the input personal identification number to another device that performs user authentication using the personal identification number. The input method according to the present invention is executed by the input device 1.

  The input device 1 includes an input / output processing control unit 11, a storage device 12, a numeric key unit 13, a key press detection unit 14, a screen display unit 15, a screen display control unit 16, an arithmetic processing unit 17, a communication processing control unit 18, The communication processing circuit unit 19, the communication cable connection terminal 20, and the power supply circuit unit 21 are included.

The input / output processing control unit 11 is configured by, for example, a central processing unit (abbreviated as CPU) (not shown). The input / output processing control unit 11 receives the personal identification number (Personal
Identification number (hereinafter also referred to as “PIN”) includes an input processing unit 111 and a key input processing unit 112. The PIN input processing unit 111 and the key input processing unit 112 are functions realized when the input / output processing control unit 11 executes a program stored in the storage device unit 12. Further, the input / output processing control unit 11 controls the key press detection unit 14, the screen display control unit 16, the arithmetic processing unit 17, and the communication processing control unit 18 by executing a program stored in the storage device unit 12. .

  The PIN input processing unit 111 executes PIN input processing for inputting a password entered from the numeric key unit 13. The key input processing unit 112 executes key input processing for inputting a numerical value input from the numeric key unit 13. The key input processing unit 112 is a calculation unit and an input unit. The numeric key unit 13, the key press detection unit 14, and the key input processing unit 112 are selection means.

  The storage device unit 12 is constituted by a storage device such as a semiconductor memory device or a hard disk device, for example, and stores a program executed by the input / output processing control unit 11 and information necessary for executing the program. Information stored in the storage device unit 12 is written and read by the input / output processing control unit 11.

  The storage device unit 12 includes a PIN input processing storage area 121 and a key input processing storage area 124. The PIN input processing storage area 121 is an area for storing information used when the PIN input processing unit 111 executes a PIN input process described later, and includes a PIN input number storage unit 122 and an input number storage unit 123. The PIN input number storage unit 122 stores a “PIN input number” that represents a digit of a numerical value that is input among digits of the password. The input number storage unit 123 stores an “input number” representing a number input as a password.

  The key input processing storage area 124 is an area for storing information used when the key input processing unit 112 executes a key input process to be described later. The pressed key number storage unit 125, the pressed key list storage unit 126, and the input A numerical value storage unit 127 is included and a conversion table 128 is stored. The pressed key number storage unit 125 stores “number of pressed keys” indicating the number of pressed numeric keys. The pressed key list storage unit 126 stores a “pressed key list” representing a list of pressed numeric keys. The input numerical value storage unit 127 stores “input numerical value” representing a numerical value obtained by converting the pressed numeric key according to the conversion table 128. The conversion table 128 is a table for converting a pressed numeric key into a numerical value represented by the numeric key.

  The numeric key unit 13 includes a plurality of numeric keys, operation keys such as a confirmation key and a cancel key. The plurality of numeric keys are numeric keys in which a plurality of numeric values are displayed one by one on each numeric key, for example, a plurality of numeric keys detailed in FIG. In FIG. 2, the confirmation key and the cancel key are not shown. The operation keys included in the numeric key unit 13 may be mechanical operation keys or image operation keys displayed on a touch panel or the like.

  The key press detection unit 14 detects a pressed numeric key among the numeric keys included in the numeric key unit 13, and sends numeric key identification information representing the detected numeric key to the input / output processing control unit 11. In the case of a numeric key displayed on a touch panel or the like, touching the displayed numeric key means pressing the numeric key. Hereinafter, pressing the numeric key is also referred to as operating the numeric key. The numeric key identification information is, for example, position information where each numeric key is arranged, or key identification information for identifying each numeric key.

  The key press detection unit 14 sends the confirmation key information to the input / output processing control unit 11 when it detects that the confirmation key is pressed, and when it detects that the cancellation key is pressed, it cancels the key. Information is sent to the input / output processing control unit 11. The confirmation key is an operation key for instructing that the input of the personal identification number is completed, and the cancel key is an operation key for instructing cancellation of the input personal identification number.

  The screen display unit 15 is configured by a liquid crystal display, for example, and displays information instructed from the screen display control unit 16 on the display screen. The screen display control unit 16 sends the information received from the input / output processing control unit 11 to the screen display unit 15 and controls the screen display unit 15 to display the information on the display screen. The arithmetic processing unit 17 performs a calculation instructed by the input / output processing control unit 11 and sends the calculation result to the input / output processing control unit 11.

The communication processing control unit 18 controls the communication processing circuit unit 19, sends information received from the input / output processing control unit 11 to the communication processing circuit unit 19, and is connected to the communication cable connection terminal 20 by the communication processing circuit unit 19. Other devices such as point-of-sale information management (
Point of sale system (abbreviated as POS) terminal and other terminal devices. In addition, the communication processing circuit unit 19 receives information transmitted from another device via a communication cable connected to the communication cable connection terminal 20, and sends the received information to the input / output processing control unit 11.

  The communication processing circuit unit 19 converts information received from the communication processing control unit 18 into an electric signal, and transmits the converted electric signal to another device via a communication cable connected to the communication cable connection terminal 20. An electrical signal transmitted from another device via a communication cable connected to the connection terminal 20 is converted into information, and the converted information is sent to the communication processing control unit 18.

  The communication cable connection terminal 20 is a connector for connecting, for example, a universal serial bus (abbreviated to USB) cable, and is connected to another device, for example, a terminal device such as a POS terminal, via the USB cable. .

  The power supply circuit unit 21 includes an input / output processing control unit 11, a storage device unit 12, a numeric key unit 13, a key press detection unit 14, a screen display unit 15, a screen display control unit 16, an arithmetic processing unit 17, and a communication processing control unit 18. And a power supply for supplying power to the communication processing circuit unit 19. When the communication cable connected to the communication cable connection terminal 20 is a USB cable, the power supply circuit unit 21 receives power supplied from the USB cable, and the power supply circuit unit 21 receives the input / output processing control unit 11 and the storage device. May be configured to be supplied to the unit 12, the numeric key unit 13, the key press detection unit 14, the screen display unit 15, the screen display control unit 16, the arithmetic processing unit 17, the communication processing control unit 18, and the communication processing circuit unit 19. Good.

  FIG. 2 is a diagram illustrating an example of a key layout of the numeric key unit 13. FIG. 2A is a diagram showing a key layout 30 showing an example of the key arrangement of the numeric key unit 13. In the key layout 30, 13 numeric keys are arranged adjacent to each other in the vertical direction and the horizontal direction, arranged in three rows in the vertical direction and in five rows in the horizontal direction. Each number key has a number displayed at the center. When the user presses a numeric key, the key press detection unit 14 detects the pressed numeric key.

  The key layout 30 shown in FIG. 2A includes a numeric key displaying a number “5” from the left, a number key displaying a number “4”, and a number key displaying a number “3” at the top. , The number key displaying the number “4” and the number key displaying the number “5” are arranged in this order, and the number “3” is displayed from the left in the second row. Number key, number key displaying number “2”, number key displaying number “1”, number key displaying number “2”, and number key displaying number “3” The number keys are arranged in this order, and the number key from which the number “0” is displayed from the second to the left, the number key in which the number “1” is displayed, and the number “0” are displayed in the third row. The three numeric keys are arranged in this order. No numeric keys are arranged on the first and fifth from the left in the third row.

  In the key layout 30 shown in FIG. 2A, there are three numeric keys displaying “3” and two numeric keys displaying numerical values other than “3”. Accordingly, numerical values that can be selected by the user pressing the numeric key are natural numbers “0” and “1” to “5”. Further, the difference between the numbers displayed on the two numeric keys adjacent to each other in the horizontal direction is “1”, and the difference between the numbers displayed on the two numeric keys adjacent to each other in the vertical direction is the second difference. Except for the difference between the number “1” displayed on the number key in the center of the step and the number “1” displayed on the number key in the center of the third step, it is “2” and the number in the center of the second step. The difference between the number “1” displayed on the key and the number “1” displayed on the number key in the center of the third row is “0”.

  FIG. 2B is a diagram showing a key layout 31 showing another example of the key arrangement of the numeric key unit 13. The key layout 31 is the same as the key layout 30 shown in FIG. 2A in the numbers displayed at the center of each number key, but the numbers displayed on the adjacent number keys are added. The added value, which is a value, is displayed at the boundary between the numeric keys adjacent to each other.

  For example, for the top row, the numerical value “5” displayed on the first number key and the second number are displayed at the boundary between the first number key and the second number key from the left. A value “9” obtained by adding the numeric value “4” displayed on the key is displayed. The number displayed on the first numeric key from the left on the top row is at the boundary between the first numeric key from the left on the top row and the first numeric key from the left on the second row. A value “8” obtained by adding the value “5” of the current value and the numerical value “3” displayed on the first numeric key from the left in the second row is displayed.

  The user can also press only one number key among the number keys shown in the key layout 30 shown in FIG. 2A and input the value of the number displayed on the pressed number key. Of the numeric keys shown in the key layout 30, a plurality of numeric keys, for example, two numeric keys may be simultaneously depressed, and a sum value of numeric values displayed on the two depressed numeric keys may be input. it can. The user can similarly input numerical values for the key layout 31 shown in FIG.

  In the key layout 31 shown in FIG. 2B, the added value obtained by adding the numeric values displayed on the adjacent numeric keys is displayed at the boundary, so that the user is displayed on the two numeric keys. It is possible to specify the numeric keys to be pressed at the same time by simply looking at the added value displayed at the boundary without performing the calculation of adding the numbers being displayed.

  FIG. 3 is a diagram illustrating a processing procedure of the PIN input processing processed by the PIN input processing unit 111. In the PIN input process, the PIN input processing unit 111 recognizes the four-digit password entered, and transmits the recognized password to another device, for example, a terminal device such as a POS terminal (hereinafter also referred to as “terminal”). It is processing. When the input device 1 is powered on and becomes operable, the process proceeds to step A1.

  In step A <b> 1, the PIN input processing unit 111 initializes the “PIN input number” stored in the PIN input number storage unit 122 and the “input number” stored in the input number storage unit 123. “PIN input number” is information indicating the digit of the numerical value entered in the digits of the password, and the initial value is “0”. The “input number” is information representing a number input as a personal identification number, and the initial state is a cleared state, that is, a state where nothing is stored.

  In step A2, the PIN input processing unit 111 updates the screen display displayed on the screen display unit 15 to a screen display that displays a message prompting the input of a personal identification number, for example, a message “Neukoku Techaisai”. In step A3, the key input processing unit 112 executes the key input process shown in FIG. In step A4, the PIN input processing unit 111 determines whether the input is invalid. When an input invalidity described later is returned from the key input processing unit 112, it is determined that the input is invalid, and the process returns to step A3. When the input invalidity is not returned from the key input processing unit 112, it is determined that the input is not invalid, and the process proceeds to Step A5.

  In step A5, the PIN input processing unit 111 determines whether or not the cancel key is pressed. When cancel key press information described later is returned from the key input processing unit 112, it is determined that the cancel key is pressed, and the process proceeds to step A12. When the cancel key pressing information is not returned from the key input processing unit 112, it is determined that the cancel key has not been pressed, and the process proceeds to step A6. In step A6, the PIN input processing unit 111 determines whether or not the enter key has been pressed. When the confirmation key pressing information described later is returned from the key input processing unit 112, it is determined that the determination key has been pressed, and the process proceeds to Step A14. When the confirmation key pressing information is not returned from the key input processing unit 112, it is determined that the determination key has not been pressed, and the process proceeds to step A7.

  In step A7, the PIN input processing unit 111 determines whether the input is successful. When an input success described later is returned from the key input processing unit 112, it is determined that the input is successful, and the process proceeds to step A8. When the input success is not returned from the key input processing unit 112, it is determined that the input is not successful, and the process returns to Step A3.

  In step A8, the PIN input processing unit 111 determines whether or not the number of PIN inputs is “4”. When the “PIN input number” stored in the PIN input number storage unit 122 is “4”, it is determined that the PIN input number is “4”, and the process proceeds to Step A15. When the “PIN input number” stored in the PIN input number storage unit 122 is not “4”, it is determined that the PIN input number is not “4”, and the process proceeds to Step A9. In step A 9, the PIN input processing unit 111 adds the input numerical value returned from the key input processing unit 112 to the “input number” stored in the input number storage unit 123. Specifically, among the digits of the “input number” stored in the input number storage unit 123, the digit next to the digit specified by the value indicated by the “PIN input number” stored in the PIN input number storage unit 122 The input numerical value returned from the key input processing unit 112 is added.

  In step A 10, the PIN input processing unit 111 adds “1” to “PIN input number” stored in the PIN input number storage unit 122. Adding “1” to the “PIN input number” stored in the PIN input number storage unit 122 is to change the digit in the password to the digit of the input numerical value. In step A11, the PIN input processing unit 111 displays “*” in the digit indicated by the “PIN input number” stored in the PIN input number storage unit 122 among the personal identification number. The screen is updated to display the added personal identification number, and the process returns to step A3.

  In step A 12, the PIN input processing unit 111 initializes the “PIN input number” stored in the PIN input number storage unit 122 and the “input number” stored in the input number storage unit 123. In step A13, the PIN input processing unit 111 updates the screen display displayed on the screen display unit 15 to a cleared screen display, that is, a screen display that displays nothing, and returns to step A3.

  In step A14, the PIN input processing unit 111 determines whether or not the number of PIN inputs is “4”. When the PIN input number is “4”, it indicates that a 4-digit password has been input. When the “PIN input number” stored in the PIN input number storage unit 122 is “4”, it is determined that the PIN input number is “4”, and the process proceeds to Step A16. When the “PIN input number” stored in the PIN input number storage unit 122 is not “4”, it is determined that the PIN input number is not “4”, and the process proceeds to Step A15. In step A15, the PIN input processing unit 111 performs error notification, notifies the user of an error by, for example, sounding a buzzer, and returns to step A3. When notifying the user of an error by sounding the buzzer, the input device 1 is provided with sounding means for sounding the buzzer.

  In step A16, the PIN input processing unit 111 sends the number indicated by the “input number” stored in the input number storage unit 123 to the communication processing control unit 18 as the input password, and the communication processing circuit unit 19 Then, the data is transmitted to a terminal such as a POS terminal via a communication cable connected to the communication cable connection terminal 20. In step A17, the PIN input processing unit 111 updates the screen display displayed on the screen display unit 15 to an erased screen display, that is, a screen display that displays nothing, and ends the PIN input process.

  FIG. 4 is a diagram illustrating a processing procedure of the key input process performed by the key input processing unit 112. The key input process is a process in which the key input processing unit 112 recognizes a pressed numeric key and specifies a numerical value input by the recognized numeric key. When executed in step A3 of the flowchart shown in FIG. 3, the process proceeds to step B1.

  In step B 1, the key input processing unit 112 stores the “pressed key number” stored in the pressed key number storage unit 125, the “pressed key list” stored in the pressed key list storage unit 126, and the input numerical value storage unit 127. Initialize the “input numerical value”. The “number of pressed keys” is information indicating the number of pressed numeric keys, and the initial value is “0”. The “pressed key list” is information representing a list of pressed numeric keys, and the initial state is a state in which nothing is stored. The “input numerical value” is information representing a numerical value obtained by converting the pressed numeric key according to the conversion table 128, and the initial value is “0”.

  In step B2, the key input processing unit 112 waits for a key operation, that is, waits for a change caused by pressing one of the operation keys of the numeric key unit 13. In step B3, the key input processing unit 112 determines whether or not there has been a change due to the operation key being pressed. When numeric key identification information, confirmation key information, or cancel key information is received from the key press detection unit 14, it is determined that there has been a change due to the operation key being pressed, and the process proceeds to step B4. When none of the numeric key identification information, the confirmation key information, and the cancel key information is received from the key press detection unit 14, it is determined that there is no change due to the operation key being pressed, and the process proceeds to Step B11.

  In step B4, the key input processing unit 112 determines whether the numeric key is pressed for the first time. When the numeric key identification information received from the key press detection unit 14 includes numeric key identification information that is not set in the “press key list” stored in the press key list storage unit 126, the numeric key that is pressed for the first time And proceed to Step B5. If all of the numeric key identification information received from the key press detection unit 14 is set in the “press key list” stored in the press key list storage unit 126, it is determined that it is not the first pressed key. Return to B2.

  In step B5, the key input processing unit 112 determines whether or not the enter key has been pressed. When the confirmation key information is received from the key press detection unit 14, it is determined that the confirmation key has been pressed, and the process proceeds to step B15, and when the confirmation key information is not received from the key press detection unit 14, the confirmation key has not been pressed. Determine and proceed to step B6. In step B6, the key input processing unit 112 determines whether or not the cancel key is pressed. When the cancel key information is received from the key press detection unit 14, it is determined that the cancel key has been pressed, and the process proceeds to step B16, and when the cancel key information is not received from the key press detection unit 14, the cancel key has not been pressed. Determine and proceed to step B7.

  In step B 7, the key input processing unit 112 adds “1” to the “number of pressed keys” stored in the pressed key number storage unit 125. In step B8, the key input processing unit 112, among the numeric key identification information received from the key press detection unit 14, is the numeric key identification information that is not set in the “press key list” stored in the press key list storage unit 126. Is obtained as a target numeric key identification information, and a numerical value specified by the numeric key indicated by the target numeric key identification information is acquired from the conversion table 128 stored in the key input processing storage area 124. In step B 9, which is a calculation step, the key input processing unit 112 adds the numerical value acquired from the conversion table 128 to the “input numerical value” stored in the input numerical value storage unit 127. In step B10, the key input processing unit 112 sets the target numeric key identification information to the “pressed key list” stored in the pressed key list storage unit 126, and returns to step B2.

  In step B11, the key input processing unit 112 determines whether or not the pressed numeric key remains. When the pressed numeric key remains, the process returns to step B2. When the pressed numeric key does not remain, the process proceeds to step B12. The key input processing unit 112 determines whether or not the pressed numeric key remains by inquiring the key pressing detection unit 14. Specifically, when the key press detection unit 14 is informed that there is a number key that remains pressed after being pressed, the number key that is being pressed remains. When the key press detection unit 14 is informed that there is no number key that remains pressed after being pressed, it is determined that there is no number key that has been pressed. .

  In step B12, the key input processing unit 112 determines whether or not the number of pressed keys is “3” or more. When the “number of pressed keys” stored in the pressed key number storage unit 125 is “3” or more, it is determined that the number of pressed keys is “3” or more, and the process proceeds to Step B13. When the “number of pressed keys” stored in the pressed key number storage unit 125 is less than “3”, it is determined that the number of pressed keys is not “3” or more, and the process proceeds to step B14.

  In step B13, the key input processing unit 112 sends an error notification, notifies the user of the error by, for example, sounding a buzzer, and returns an invalid input indicating that the input is invalid to the PIN input processing unit 111. The key input process is terminated. In step B14, which is an input step, the key input processing unit 112 performs a PIN input process with the input success indicating that the input has been successful and the value of the “input numerical value” stored in the input numerical value storage unit 127 as the input numerical value. It returns to the part 111 and a key input process is complete | finished. In step B15, the key input processing unit 112 returns confirmation key pressing information indicating that the determination key has been pressed to the PIN input processing unit 111, and ends the key input processing. In step B16, the key input processing unit 112 returns cancel key pressing information indicating that the cancel key has been pressed to the PIN input processing unit 111, and ends the key input processing.

  Therefore, the input device 1 receives the numerical value displayed on the pressed numeric key when the number pressed is one by the PIN input process shown in FIG. 3 and the key input process shown in FIG. It can be an input value that is a numerical value. In addition, when there are two pressed numeric keys, the sum of the numbers displayed on the two pressed numeric keys can be used as an input value that is an input numeric value. Then, it is possible to identify a personal identification number composed of the four input values and transmit the identified personal identification number to a terminal device such as a POS terminal that performs user authentication.

  The input device 1 has numeric keys arranged symmetrically like the key layouts 30 and 31 shown in FIGS. 2 (a) and 2 (b), and two numbers from the numeric keys arranged in the left three columns. All integer values from “0” to “9” can be input by simply pressing the key or by pressing two numeric keys from the numeric keys arranged in the right three columns. Therefore, even a left-handed user or a right-handed user can input easily in the same manner.

  By pressing only one numeric key and simultaneously pressing two numeric keys, all integer values from “0” to “9” can be input with one finger. .

  When inputting numerical values by pressing two numerical keys at the same time, the combination of two numerical keys for inputting numerical values is an integer numerical value of “1” to “9” excluding the numerical value “0”. In any case, there are two or more combinations. If the combination of pressing only one numeric key and entering a numeric value is used, there are a plurality of numeric key combinations for “0”. Therefore, even when inputting with one finger, it is very difficult to estimate the input numerical value by looking at the movement of the finger.

In the case of the conventional technique in which one numeric value is assigned with one numeric key, an integer numeric value of “0” to “9” is assigned to each numeric key, ten numeric keys are required. . On the other hand, in the case of the example shown in FIG. 2, the numeric keys are assigned two numerical values “0”, “1”, “2”, “4”, “5”, and “3” 13 numeric keys to which three numeric values are assigned. There are 10 combinations of numeric keys in the conventional technique. However, in the example shown in FIG. Specifically, there are ₁₃ C ₁ = 13 combinations of pressing only one numeric key, and two combinations of pressing the two numeric keys simultaneously press two numeric keys displaying “5”. Except for the case, ₁₃ C ₂ −1 = 77 ways, which is a total of 90 ways. In the input device 1, the number of combinations of 10 numeric keys in the conventional technique can be changed to 90, and the security can be remarkably improved.

  For users who are not good at complicated input, if there is no concern about the movement of the finger because there is no one around them, or if the user wants to input quickly, the user can select an integer value from “0” to “5”. Can easily input a numerical value by selecting and pressing one numeric key. Also, if you want to increase security because there is someone around you, such as in a crowd, you can improve security by simultaneously pressing two numeric keys for integer numbers from “0” to “5”. . That is, the user can adjust security by selecting and pressing one numeric key or by selecting and pressing two numeric keys at the same time. Therefore, the user can flexibly cope with the situation, such as whether he / she is not good at calculation, whether there is a person around, or whether he / she is in a hurry.

  FIG. 5 is a diagram illustrating an example of a numeric key deteriorated by the input of a password. The example shown in FIG. 5 uses the key layout 30 shown in FIG. 2A to press two numeric keys and input the total value displayed on the pressed numeric key as an input value. In this case, a 4-digit password “5555” is input.

  FIG. 5A shows a key when the number key “5” at the uppermost right end and the number key “0” at the left end of the third step are pressed and the first digit “5” of the password is input. A layout 52a is shown. In FIG. 5B, the second numeric key “4” from the left on the top row and the numeric key “1” in the middle of the third row are pressed, and the second digit “5” of the password is entered. A key layout 52b is shown. FIG. 5 (c) shows that the number key “3” at the left end of the second stage and the second number key “2” from the left at the second stage are pressed, and the third digit “5” of the password is displayed. The key layout 52c when the key is input is shown. In FIG. 5D, the number key “3” in the center of the top row and the fourth number key “2” from the left in the second row are pressed, and the fourth digit “5” of the password is entered. A key layout 52d is shown.

  FIG. 5 (e) shows a key layout 53 having degraded numeric keys. The key layout 53 shown in FIG. 5E is the second numeric key “4” from the top left among the number keys of the key layout 30 shown in FIG. “3”, numeric key “5” at the right end of the top row, numeric key “3” at the left end of the second row, second numeric key “2” from the left in the second row, fourth from the left in the second row The number key “2” of the third stage, the number key “0” at the left end of the third stage, and the number key “1” at the center of the third stage are in a deteriorated state.

  Thus, in the example shown in FIG. 5, the eight numeric keys shown in FIG. 5 (e), specifically, the second numeric key “4” from the top left, the numeric key in the top middle “3”, numeric key “5” at the right end of the top row, numeric key “3” at the left end of the second row, second numeric key “2” from the left in the second row, fourth from the left in the second row The number key “2” of the number th, the number key “0” at the left end of the third step, and the number key “1” at the center of the third step deteriorate. That is, in the example shown in FIG. 6, the numeric keys that deteriorate can be distributed to eight numeric keys. Therefore, the numerical values that can be input from the combination of the numbers displayed on the deteriorated number keys are the numbers from “1” to “9” except “0”, and the numerical value input as the password is estimated. Is very difficult.

  FIG. 6 is a diagram illustrating an example of the key structure of the numeric key unit 13. FIG. 6A is a diagram illustrating a key structure 60 that is an example of a key structure of the key layout 31 illustrated in FIG. The key structure 60 is an example in which a boundary portion that displays an added value that is a value obtained by adding the numerical values displayed on the adjacent numeric keys is formed in a concave shape. An added value obtained by adding the numerical values displayed on the numeric keys adjacent to each other across the concave shape is displayed at the bottom of the concave shape.

  FIG. 6B is a diagram showing a key structure 61 which is another example of the key structure of the key layout 31 shown in FIG. The key structure 61 is an example in which a boundary portion that displays an added value that is a value obtained by adding the numerical values displayed on the adjacent numeric keys is formed in a convex shape. An added value obtained by adding the numeric values displayed on the numeric keys adjacent to each other across the convex shape is displayed on the top of the convex shape.

  Thus, since the boundary part of the number keys adjacent to each other has a concave shape or a convex shape, it is possible to easily press the adjacent number keys simultaneously. Furthermore, since the added value of the numbers displayed on the numeric keys adjacent to the bottom of the concave shape or the top of the convex shape is displayed, even a user who is not good at the calculation can press “0” by simultaneously pressing the two numeric keys. "1" to "9" except for "" can be easily input.

  FIG. 6C shows a key structure 62 provided with a cover for making it difficult to see the movements of the hands and fingers from the surroundings on the key layout 31 shown in FIG. The cover is provided on the side opposite to the side where the user pressing the numeric key is located, and on the left side and the right side of the key layout 31.

  In the above-described embodiment, the operation of adding the numerical values displayed on the two numerical keys pressed simultaneously is performed, but the operation of subtracting may be performed. That is, in the above-described embodiment, the value obtained by adding the numeric values displayed on the two numeric keys pressed at the same time is the input numeric value, but the numeric value displayed on the two numeric keys pressed at the same time. It is also possible to use a numerical value obtained by inputting the absolute value of the value obtained by subtracting.

  FIG. 7 is a diagram illustrating another example of the key layout of the numeric key unit 13. FIG. 7 shows a key layout 63 which is an example of a key layout for setting the absolute value of the value obtained by subtracting the numeric values displayed on the two numeric keys pressed at the same time as the input numerical value.

  In the key layout 63, the number key displaying the number “6” from the left, the number key displaying the number “2”, the number key displaying the number “5”, and the number “2” are displayed on the top row. 5 numeric keys are displayed in this order, and the numeric key with the number “1” displayed from the left in the second row is the number “9”. The five numeric keys are arranged in this order: the displayed numeric key, the numeric key with the numeric “3”, the numeric key with the numeric “9”, and the numeric key with the numeric “1”. Three number keys, the number key displaying the number “0”, the number key displaying the number “1”, and the number key displaying the number “0” from the second on the left in the third row Are arranged in this order. No numeric keys are arranged on the first and fifth from the left in the third row.

  When inputting an integer value of “0” to “9” in the key layout 63 shown in FIG. 7, for example, a number key displaying a number “0” and a number key displaying a number “1” are simultaneously displayed. When the combination at the time of pressing is expressed as “0-1”, the combination of the numeric keys when inputting the numerical value “0” is “0-0”, “1-1”, “2-2”, There are combinations of “3-3”, “5-5”, “6-6”, and “9-9”. When inputting the numerical value “1”, the combinations of numeric keys are “0-1”, “ There are combinations of “1-2”, “2-3”, and “5-6”. When inputting a numerical value “2”, combinations of numeric keys are “0-2”, “1-3”, and “3”. -5 ”, and the numeric key combination for inputting the numerical value“ 3 ”is“ 0-3 ”,“ 2-5 ”,“ There are combinations of “-6” and “6-9”, and there are combinations of numeric keys for inputting a numerical value “4”, such as “1-5”, “2-6”, and “5-9”. , The numeric key combination for inputting the numerical value “5” includes the combination of “0-5” and “1-6”, and the numerical key combination for inputting the numerical value “6” is “0− There are combinations of “6” and “3-9”. When inputting the numerical value “7”, the numerical key combination is “2-9” and when inputting the numerical value “8” The combination includes the combination “1-9”, and the combination of the numeric keys when inputting the numerical value “9” includes the combination “0-9”.

  When subtraction is performed as the calculation of the numerical values displayed on the two numeric keys pressed at the same time, the key input processing unit 112 calculates the numerical value acquired from the conversion table 128 in step B9 of the flowchart shown in FIG. Subtract from the “input numerical value” stored in the input numerical value storage unit 127, and store the absolute value of the subtracted value overwriting the “input numerical value” stored in the input numerical value storage unit 127.

  Further, it may be possible to select whether to perform addition or subtraction as the calculation of the value of the number displayed on the number keys pressed simultaneously. For example, when the numeric key unit 13 is composed of keys displayed on a touch panel or the like, an operation switching key is provided near the key layout, and the key layout 30 shown in FIG. And the key layout 63 shown in FIG. 7 may be switched and displayed.

  When switching between addition and subtraction as the calculation of the numerical values displayed on the two numeric keys pressed at the same time, the key input processing unit 112, in step B9 of the flowchart shown in FIG. When the key layout 30 shown in FIG. 2A is used, the numerical value acquired from the conversion table 128 is added to the “input numerical value” stored in the input numerical value storage unit 127, and the key shown in FIG. When the layout 63 is used, the numerical value acquired from the conversion table 128 is subtracted from the “input numerical value” stored in the input numerical value storage unit 127, and the absolute value of the subtracted value is stored in the input numerical value storage unit 127. Overwrite the “input numerical value” to be stored.

  In the above-described embodiment, only one numeric key is pressed, the numeric value displayed on each numeric key is directly input as a numeric value, and the numeric value displayed on the two numeric keys pressed simultaneously is displayed. Although it is used in combination with inputting the sum value as a numerical value, either one may be selected. For example, when the numeric key unit 13 is constituted by keys displayed on a touch panel or the like, a key number switching key is provided in the vicinity of the key layout, and only one numeric key is depressed each time the key number switching key is depressed, Switch between entering the numeric value displayed on each numeric key as it is, entering the sum of the numeric values displayed on the two numeric keys that are pressed simultaneously as a numeric value, or using both together In addition, information indicating which input method is switched may be displayed on the touch panel. When only one numeric key is pressed and a numeric value displayed on each numeric key is directly input as a numeric value, a conventional technique consisting of ten numeric keys displaying integers “0” to “9”. 8 is displayed on the touch panel, for example, the key layout 91a shown in FIG.

  Also, it is possible to prepare a plurality of key layouts in which the numbers displayed on each number key and the arrangement of the number keys are different, and to select one key layout from them.

  In the above-described embodiment, the program executed by the input / output processing control unit 11 is stored in the storage device unit 12, but the program is stored only in a storage device such as the storage device unit 12. Instead of this, a configuration may be adopted in which the data is recorded on a computer-readable recording medium such as the input / output processing control unit 11 and is read from the recording medium and stored in the storage device unit 12 at the time of execution. The recording medium may be a recording medium that can be read by providing a program reading device as an external storage device (not shown) and inserting the recording medium therein, or may be a storage device of another device. .

  Any recording medium may be used as long as the stored program is accessed from a computer and executed. Alternatively, any recording medium may be used as long as the program is read, the read program is stored in the storage device unit 12, and the program is executed. Furthermore, it may be downloaded from another device via a communication network and stored in the storage device unit 12. The download program is stored in the storage device unit 12 in advance, or is installed in the storage device unit 12 from another recording medium.

The recording medium configured to be separable from the main body is, for example, a tape-based recording medium such as a magnetic tape / cassette tape, a magnetic disk such as a flexible disk / hard disk, or a CD-ROM (Compact Disk Read Only Memory) / MO (Magneto). Optical disk (MD) disc / DVD (Digital Versatile Disk) optical disc type recording medium, IC (Integrated Circuit) card (including memory card) / optical card type recording medium, or Mask ROM / EPROM (Erasable Programmable Read Only Memory) / EEPROM (Electrically Erasable Programmable Read Only)
Memory) / a recording medium that carries a fixed program including a semiconductor memory such as a flash ROM. Therefore, the present invention can be provided as a computer-readable recording medium on which a program for executing each step of the input method is recorded.

  As described above, the numeric key unit 13, the key press detection unit 14, and the key input processing unit 112 select a plurality of numeric values using a plurality of numeric keys to which numeric values are assigned. The key input processing unit 112 calculates a plurality of numerical values selected by the numeric key unit 13, the key press detection unit 14, and the key input processing unit 112. Then, the key input processing unit 112 inputs the value of the calculation result calculated by the key input processing unit 112 as an input value. That is, since the operation result of the selected plurality of numerical values is used as the input numerical value, it is possible to make it difficult to specify the numerical value input by pressing a numerical key that specifies the numerical value, for example.

  Furthermore, since the key input processing unit 112 calculates a plurality of numerical values selected simultaneously by the numeric key unit 13, the key press detection unit 14, and the key input processing unit 112, the user selects the numerical values at the same time, for example, simultaneously It is possible to input a numerical value that is difficult to specify by a simple operation of pressing.

  Further, the plurality of numeric keys is a number of combinations of two numeric keys that make the input value an integer value of 1 to 9, and two or more combinations for each integer value of 1 to 9. Includes numeric keys. Therefore, the user only needs to select two numeric keys, and the number of combinations of two numeric keys that can be specified by the movement of the hand or finger increases, so that it is more difficult to specify the numerical value to be input. be able to.

  Furthermore, since the key input processing unit 112 calculates a value obtained by adding the numerical values selected by the numeric key unit 13, the key press detection unit 14, and the key input processing unit 112, the user can perform an addition that is a simple calculation. The desired numerical value can be input by.

  Furthermore, since the plurality of numeric keys include at least two 3 and two each of 0, 1, 2, 4, and 5, it is possible to input an integer from 0 to 9 by selecting two numbers. it can.

  Further, in the plurality of numeric keys, the difference between the numerical values displayed on the two numerical keys adjacent to each other in the horizontal direction is 1, and the numerical values displayed on the two numerical keys adjacent to each other in the vertical direction are respectively The difference is 2 or 1. Therefore, the arrangement of the numeric keys can be simplified, and the arrangement of numeric keys that can be easily selected by the user can be achieved. Moreover, about the integer of 1-9, the input with a numerical key adjacent to each other can be performed.

  Furthermore, since the added value, which is a value obtained by adding the numerical values displayed on the adjacent numeric keys, is displayed at each boundary portion of the adjacent numeric keys, the user can perform the calculation. By referring to the added value without performing it, it is possible to select and press the number key to be pressed in order to input the target numerical value.

  Furthermore, since the plurality of numeric keys are used for inputting a password, it can be used as an input device for inputting the password at an ATM, a convenience store, a mass retailer, or the like.

  Further, in inputting a numerical value with an input device having a numerical key unit 13, a key press detection unit 14, and a key input processing unit 112 that select a plurality of numerical values using a plurality of numerical keys to which numerical values are assigned, A plurality of numerical values selected by the numeric key unit 13, the key press detection unit 14, and the key input processing unit 112 are calculated. In the input step, the value of the calculation result calculated in the calculation step is input as an input value. That is, since the operation result of the selected plurality of numerical values is used as the input numerical value, it is possible to make it difficult to specify the numerical value input by pressing a numerical key that specifies the numerical value, for example.

DESCRIPTION OF SYMBOLS 1 Input device 11 Input / output processing control part 12 Storage device part 13 Numeric key part 14 Key press detection part 15 Screen display part 16 Screen display control part 17 Arithmetic processing part 18 Communication processing control part 19 Communication processing circuit part 20 Communication cable connection terminal 21 Power supply circuit section 111 PIN input processing section 112 Key input processing section

Claims (8)

A selection means for selecting a plurality of numerical values by using a plurality of numeric keys to which the numerical values are assigned;
Computing means for computing a plurality of numerical values selected by the selecting means;
And input means for inputting a value of the operation result calculated by the calculation means as input values seen including,
The calculation means has a value obtained by adding the numerical values selected by the selection means as a calculation result,
The input device, wherein the plurality of numeric keys includes a plurality of numeric keys of at least 0, 1, 2, 3, 4, and 5, and is arranged symmetrically .   The input device according to claim 1, wherein the calculation unit calculates a plurality of numerical values simultaneously selected by the selection unit.   The plurality of numeric keys are a number of numeric keys that can be used in combination of two numeric keys for setting the input value to an integer value of 1 to 9 for each integer value of 1 to 9. The input device according to claim 1, further comprising: The input device according to claim 1 , wherein the plurality of numeric keys include at least two 3 and two each of 0, 1, 2, 4, and 5. In the plurality of numeric keys, a difference between numerical values displayed on two numeric keys adjacent to each other in the horizontal direction is 1, and a difference between numerical values displayed on two numeric keys adjacent to each other in the vertical direction is The input device according to claim 4 , wherein the input device is two or one. 2. The plurality of numeric keys, wherein an added value, which is a value obtained by adding numerical values displayed on adjacent numeric keys, is displayed at each boundary portion of adjacent numeric keys. The input device according to any one of 5 . The plurality of numeric keys, the input device according to any one of claims 1-6, characterized in that it is used for inputting a personal identification number. An input method for inputting a numerical value with an input device having a selection means for selecting a plurality of numerical values using a plurality of numerical keys to which the numerical values are assigned,
A calculation step for calculating a plurality of numerical values selected by the selection means;
And an input step of inputting the value of the computed operation results in calculation step the input value seen including,
In the calculation step, a value obtained by adding the numerical values selected by the selection means is set as a calculation result,
The input method, wherein the plurality of numeric keys includes a plurality of numeric keys of at least 0, 1, 2, 3, 4, and 5, and is arranged symmetrically .