TWI659337B - Method and computer program product of displaying a dynamic virtual keyboard - Google Patents

Abstract

A method for displaying a dynamic virtual keyboard and a computer program product thereof are applied to a device to generate a virtual keyboard. The device includes a processor, a memory, and a screen. The method includes: causing the processor to randomly select A first permutation combination or a second permutation combination is selected as a first key group in the memory. The first permutation combination is “0, 1, 2, 3, 4, 5, 6, 7 from left to right. , 8 and 9 ", and the second permutation is" 1,2,3,4,5,6,7,8,9 and 0 "from left to right; so that the processor selects the first One of a key group to a plurality of virtual keys to adjust a key width so that the first key group has a plurality of the key widths; the processor reads a second key group in the memory and selects the first key group in a random manner One of the two key groups to a plurality of the virtual keys to adjust the key width so that the second key group has a plurality of the key widths, and the second key group is from left to right in the order "q, w, e, r, t , Y, u, i, o, and p "; causes the processor to read a third key group in the memory and randomly Select one of the third key group to a plurality of the virtual keys to adjust the key width, so that the third key group has a plurality of the key widths, and the third key group is “a, s, d” from left to right. , F, g, h, j, k, and l "; causes the processor to read a fourth key group in the memory and select one of the fourth key group to a plurality of the virtual keys in a random manner to adjust the key Width, so that the fourth key group has a plurality of key widths, and the fourth key group is from left to The right order is "z, x, c, v, b, n, and m"; the virtual keyboard is displayed on the screen, and the virtual keyboard is in order from the second key group, the third key group, and the The fourth key group; receives a click coordinate and converts it into a character corresponding to the virtual keyboard; stores the character into the memory; reads a plurality of the characters sequentially stored in the memory to form a A character string; and sending the character string to a login input box of an application.

Description

Method for displaying dynamic virtual keyboard and computer program product thereof

The invention relates to a technology for displaying a dynamic virtual keyboard on a screen, and more particularly to a method for displaying a dynamic virtual keyboard for inputting account / password login information and a computer program product thereof.

Compared with ordinary e-commerce systems (or e-commerce platforms), online banking is the online transaction system with the highest security requirements, because online banking only requires the user to open a webpage with a browser and enter an account / password. You can log in for electronic transfer transactions, and the risk is extremely high. South Korea and the mainland have required Internet banks to protect the security of users ’passwords since 2006 and 2010 respectively. Therefore, an anti-keyboard recording system must be installed in the client's computer. In 2013, Taiwan launched the new version of the Internet. The bank's security control benchmark added security measures that "financial institutions should be able to prevent passwords from being skimmed." It can be seen that the security of account / password input is an important issue for information security. In this era of hackers and Trojan horses being ubiquitous, preventing keyboard side recording, network side recording, Trojan horse and other technologies is a very important information security link.

Therefore, many previous technologies of on-screen virtual keyboards that prevent keyboard side recording have emerged at the historic moment. The methods of the prior technology are nothing more than randomly changing the position of the virtual keys, so that malicious programs cannot profile the correct characters. However, the previous technology did not follow the traditional QWERTY keyboard layout due to the virtual keys. (Keyboard Layout) Sequentially and randomly scattered, causing the user to spend time looking for keys, which is quite inconvenient in use, which means that the previous technology cannot meet the user's habitual operation requirements. Therefore, it is really necessary to improve the resources of the prior art hardware and software to work together to propose a dynamic virtual keyboard technology that meets the user's habitual operation, so that the virtual keys are still set according to the QWERTY keyboard layout order, and the virtual keys can be randomly adjusted. Corresponding click area, so that the coordinates of the same point may represent different keystrokes each time the virtual keyboard is executed, so that even if the malicious program records the click coordinates side by side, it cannot infer the correct characters in reverse, so as to make up for the lack of previous technology Place.

In view of this, the present invention proposes a method for displaying a dynamic virtual keyboard and a computer program product thereof. The virtual keys are arranged in accordance with the order of the QWERTY keyboard layout, and then the width of the virtual keys is adjusted in a random manner so that the virtual keys are pressed each time the virtual keyboard is executed. The corresponding click area has changed.

The invention provides a method for displaying a dynamic virtual keyboard, which is applied to a device to generate a virtual keyboard. The device includes a processor, a memory, and a screen. The method includes: causing the processor to randomly remove the memory from the memory. Select a first permutation combination or a second permutation combination as a first key group, and the first permutation combination is "0, 1, 2, 3, 4, 5, 6, 7, 8" from left to right. And 9 ", and the second permutation combination is" 1, 2, 3, 4, 5, 6, 7, 8, 9, and 0 "from left to right; so that the processor selects the first key in a random manner One to a plurality of virtual keys to adjust a key width so that the first key group has a plurality of types of the key width; and the processor reads a second key group in the memory and selects the second key in a random manner One to a plurality of the virtual keys to adjust the width of the key, so that the second key group has a plurality of types of the key width, and the second key group from left to right is "q, w, e, r, t, y , U, i, o, and p "; causes the processor to read A third key group in the memory and randomly selecting one of the third key group to a plurality of the virtual keys to adjust the key width so that the third key group has a plurality of the key widths, and the third key group From left to right, "a, s, d, f, g, h, j, k, and l"; the processor reads a fourth key group in the memory and selects the fourth key in a random manner. One to a plurality of virtual keys to adjust the width of the key, so that the fourth key group has a plurality of types of the key width, and the fourth key group from left to right is "z, x, c, v, b, n And m "; the virtual keyboard is displayed on the screen, and the virtual keyboard is in order from the second key group, the third key group, and the fourth key group; receiving a click coordinate and converting to the virtual keyboard A corresponding character; storing the character in the memory; reading a plurality of the characters sequentially stored in the memory to form a character string; and transmitting the character string to an application Enter one of the programs into the input box.

The invention further includes, in some embodiments, obtaining: a resolution of the screen; and the processor adjusts the key width according to the resolution of the screen.

The invention further includes, in some embodiments, the virtual keyboard includes a plurality of function keys / special symbol keys and any combination of these key groups; and the function keys / special symbol keys can be set to: "maintain a fixed Button width "or" The button width is adjusted by random selection. "

The present invention further includes, in some embodiments, generating a check code according to a check function of the character string, and checking the character string while transmitting the character string to the login input box of the application. Code to the app.

The present invention further proposes a computer program product installed on a device having a screen and a memory. The computer program product includes: a first program instruction, a second program instruction, a third program instruction, and a fourth program. Instructions and a fifth program instruction, and the program instructions are stored in the memory. The first program instruction to obtain a resolution of the screen and temporarily store the resolution in the memory; The second program instruction randomly selects a first permutation combination or a second permutation combination as a first key group, and the first permutation combination is “0, 1, 2, 3, 4 in order from left to right. , 5, 6, 7, 8, and 9 ", and the second arrangement from left to right is" 1,2, 3, 4, 5, 6, 7, 8, 9, and 0 "; the third formula Instruction to randomly select one of the first key group, a second key group, a third key group, and a fourth key group to a plurality of virtual keys to adjust a key width such that the first key group, the first The two key group, the third key group, and the fourth key group have a plurality of types of the key widths. The second key group is, from left to right, "q, w, e, r, t, y, u, i, o and p ", the third key group from left to right is" a, s, d, f, g, h, j, k, and l ", and the fourth key group from left to right is" z, x, c, v, b, n, and m "; the fourth program instruction displays a virtual keyboard on the screen, and the virtual keyboard is in the order of the second key group, the third key group, and the The fourth key group; and, the fifth program instruction, receives one point Click a coordinate and convert it to a character corresponding to the virtual keyboard, store the character into the memory, read a plurality of the characters sequentially stored in the memory to form a character string, and, Send the string to a login input box of an application.

The invention further includes, in some embodiments, a sixth program instruction that generates a check code for the character string according to a check function; and when the fifth program instruction transmits the character string to the application At the same time as the login input box of the program, the check code is transmitted to the application.

The invention further includes, in some embodiments, the virtual keyboard includes a plurality of function keys / special symbol keys and any combination of these key groups; and the function keys / special symbol keys can be set to: "maintain a fixed Button width "or" The button width is adjusted by random selection. "

The invention also provides a method for displaying a dynamic virtual keyboard, which is applied to a device to generate a virtual keyboard. The device includes a processor, a memory, and a screen. The method includes: Including: The processor selects a first permutation combination or a second permutation combination from the memory in a random manner as a first key group, and the first permutation combination is "0, 1," from left to right. 2, 3, 4, 5, 6, 7, 8 and 9 ", and the second permutation is" 1,2, 3, 4, 5, 6, 7, 8, 9 and 0 "from left to right. ; Causing the processor to randomly select one of the first key group to a plurality of virtual keys to adjust a key width so that the first key group has a plurality of the key widths; display the virtual keyboard on the screen; receive a click Coordinate and convert to a character corresponding to the virtual keyboard; store the character into the memory; read a plurality of the characters sequentially stored in the memory to form a character string; and, The string is sent to a login input box of an application.

The invention also provides a method for displaying a dynamic virtual keyboard, which is applied to a device to generate a virtual keyboard. The device includes a processor, a memory, and a screen. The method includes: causing the processor to read the memory. A second key group and randomly selecting one of the second key group to a plurality of the virtual keys to adjust the key width so that the second key group has a plurality of the key widths, and the second key group is from left to right The order is “q, w, e, r, t, y, u, i, o, and p”; the processor reads a third key group in the memory and selects the third key group in a random manner. One to a plurality of the virtual keys to adjust the width of the key, so that the third key group has a plurality of types of the key width, and the third key group is “a, s, d, f, g, h, j from left to right , K and l "; cause the processor to read a fourth key group in the memory and select one to a plurality of the virtual keys in a random manner to adjust the key width so that the fourth key group Has a plurality of types of the key width, and the fourth key group is "z, x, c" from left to right , V, b, n, and m "; the virtual keyboard is displayed on the screen, and the virtual keyboard is in order from the second key group, the third key group, and the fourth key group; receiving a click coordinate And convert to a character corresponding to the virtual keyboard; store the character into the memory; read a plurality of the characters sequentially stored in the memory to form a character string; And, the character string is sent to a login input box of an application.

The invention also provides a method for displaying a dynamic virtual keyboard, which is applied to a device to generate a virtual keyboard. The device includes a processor, a memory, and a screen. The method includes: causing the processor to read the memory. A second key group and randomly selecting one of the second key group to a plurality of the virtual keys to adjust the key width so that the second key group has a plurality of the key widths, and the second key group is from left to right The order is "q, w, e, r, t, y, u, i, o, and p"; the processor reads a third key group in the memory, and the third key group is from left to right. "A, s, d, f, g, h, j, k, and l"; the processor reads a fourth key group in the memory, and the fourth key group is "z" from left to right. , X, c, v, b, n, and m "; the virtual keyboard is displayed on the screen, and the virtual keyboard is in order from the second key group, the third key group, and the fourth key group; Receives a click coordinate and converts it to a character corresponding to the virtual keyboard; stores the character in the memory; reads the sequentially stored duplicates in the memory The two characters to form a character string; and, one of the character string is transmitted to an application entry input box.

A method for displaying a dynamic virtual keyboard is applied to a device to generate a virtual keyboard. The device includes a processor, a memory, and a screen. The method includes: causing the processor to read a second key in the memory. Group, the second key group is "q, w, e, r, t, y, u, i, o, and p" from left to right; causing the processor to read a third key group in the memory And randomly select one of the third key group to a plurality of the virtual keys to adjust the key width, so that the third key group has a plurality of types of the key width, and the third key group is “a, s, d, f, g, h, j, k, and l "; causes the processor to read a fourth key group in the memory, and the fourth key group from left to right is" z, x, c , V, b, n, and m "; the virtual keyboard is displayed on the screen, and the virtual keyboard is in the order of the second key group, the third key group, and the fourth key group; receiving a click seat Mark and convert to a character corresponding to the virtual keyboard; store the character into the memory; read a plurality of the characters sequentially stored in the memory to form a character string; and, The string is sent to a login input box of an application.

The invention also provides a method for displaying a dynamic virtual keyboard, which is applied to a device to generate a virtual keyboard. The device includes a processor, a memory, and a screen. The method includes: causing the processor to read the memory. A second key group, the order from left to right is "q, w, e, r, t, y, u, i, o, and p"; causing the processor to read a The third key group, which is "a, s, d, f, g, h, j, k, and l" from left to right; causes the processor to read a fourth key in the memory Group and select one of the fourth key group to a plurality of the virtual keys in a random manner to adjust the key width, so that the fourth key group has a plurality of types of the key width, and the fourth key group is from "z" to "z" , X, c, v, b, n, and m "; the virtual keyboard is displayed on the screen, and the virtual keyboard is in order from the second key group, the third key group, and the fourth key group; Receives a click coordinate and converts it to a character corresponding to the virtual keyboard; stores the character in the memory; reads the sequentially stored duplicates in the memory The two characters to form a character string; and, one of the character string is transmitted to an application entry input box.

The detailed features and advantages of the present invention are described in detail in the following embodiments. The content is sufficient for any person skilled in the art to understand and implement the technical content of the present invention, and according to the content disclosed in this specification, the scope of patent applications and the drawings. Anyone skilled in the relevant art can easily understand the related objects and advantages of the present invention.

10‧‧‧ device

12‧‧‧ processor

14‧‧‧Memory

16‧‧‧Screen

18‧‧‧ communication module

20‧‧‧Virtual keyboard

22‧‧‧ Apps

24‧‧‧Input device module

26‧‧‧Presentation Box

28‧‧‧First Key Group

30‧‧‧Second Key Group

32‧‧‧ Third Key Group

34‧‧‧ Fourth Key Group

36‧‧‧Login input box one

38‧‧‧Login Input Box 2

40‧‧‧Login Input Box Three

42‧‧‧Login button

FIG. 1 is a system functional block diagram (1) of a device capable of performing the method of the present invention; Fig. 2 is a system functional block diagram of the device capable of executing the method of the present invention (2); Fig. 3 is a schematic diagram of a virtual keyboard according to an embodiment of the present invention; Fig. 4 is a schematic diagram of a virtual keyboard according to the second embodiment of the present invention; FIG. 6 is a schematic diagram of a virtual keyboard according to the third embodiment of the present invention; FIG. 6 is a schematic diagram of a virtual keyboard according to the fourth embodiment of the present invention; FIG. 7 is a schematic diagram of a virtual keyboard according to the fifth embodiment of the present invention; A schematic diagram of a keyboard; FIG. 9 is a schematic diagram of a virtual keyboard according to Embodiment 7 of the present invention; FIG. 10 is a schematic diagram of a virtual keyboard according to Embodiment 8 of the present invention; FIG. 11 is an operation flowchart of Embodiment 1 of the present invention; The screen shot of the prior art application login; FIG. 13 is the screen shot (1) of the first embodiment of the present invention; and FIG. 14 is the screen shot (2) of the first embodiment of the present invention.

The present invention uses, but is not limited to, Smart TV, Personal Computer (PC), Laptop (Notebook / Portable Computer), Smart Phone, Tablet PC, etc. 10 The method of the present invention can be applied with a screen, can perform the steps of the present invention, and intentionally protect the entered account or / and password login information.

Referring to FIG. 1, a system function block diagram (1) of the device 10 capable of executing the dynamic virtual keyboard of the present invention is shown. The illustration only lists the relevant core modules when the screen touch device 10 executes a preferred embodiment of the present invention, and the rest The module is omitted and not depicted. In an embodiment of the present invention, the virtual keyboard 20 is applied to a device 10 with a touch screen, such as a smart phone or a tablet computer. Such a device 10 includes Including: one or more processors 12, memory 14, screen 16, and communication module 18. The memory 14 is loaded or stored with an application program 22 and the virtual keyboard 20 of the present invention. The application program 22 is a third-party application program for inputting security protection requirements or a financial application program integrated with the virtual keyboard 20 or E-commerce trading application. In some embodiments, the application program 22 is a web browser used to execute and display web services of online banking, online brokerage, or e-commerce platforms. The application program 22 receives the account of the virtual keyboard 20 of the present invention or / And password to log in to these web services. In some embodiments, the application program 22 and the virtual keyboard 20 are integrated into an online banking program, an online brokerage program, or an e-commerce transaction program, and the virtual keyboard 20 belongs to one of the subprograms of these application programs 22 ( Sub-Function) or Sub-Module. When the application 22 needs to input security protection requirements (such as login), the sub-program / sub-module virtual keyboard 20 is executed, and the sub-program is stopped when the demand ends. Implementation of the sub-module virtual keyboard 20. The processor 12 executes a plurality of program instructions included in the virtual keyboard 20, and implements its steps in a manner that hardware and software cooperate. The screen 16 is used to display a graphical user interface (GUI) of the virtual keyboard 20 and to receive touch-screen instructions from the screen to operate the keys of the virtual keyboard 20. The communication module 18 is used to establish an Internet network connection, such as: wired broadband, WLAN (Wi-Fi, etc.), mobile communication network (such as 3G, 4G, etc.) and the like.

Continuing to refer to FIG. 2, a system function block diagram (2) of the device 10 that can execute the dynamic virtual keyboard of the present invention, the legend only lists the relevant core modules when the non-screen touch device 10 executes a preferred embodiment of the present invention , The remaining modules are omitted and not depicted. In an embodiment of the present invention, the virtual keyboard 20 is applied to a device 10 with a non-touch screen, such as a personal computer, a notebook computer, a smart TV, etc., which is different from this device 10 in FIG. 1. It also includes Input Device Module, such as: Mouse, Touch Pad, Remote Control, etc., for clicking the keys of the virtual keyboard 20 to enter the account number Or / and password to app twenty two. The remaining module functions of this type of device 10 are the same as those in FIG. 1 except that the screen 16 does not have a touch function, so it will not be described in detail.

Referring to FIG. 3, a schematic diagram of a virtual keyboard 20 according to an embodiment of the present invention is illustrated. The keyboard layout of the virtual keyboard 20 according to an embodiment of the present invention includes from top to bottom: a presentation frame 26, a first key group 28, and a second key Group 30, third key group 32, and fourth key group 34.

Wherein, the presentation box 26 can be implemented with a label component or an input box (input box) component during application development. The presentation box 26 is used to display operation prompts before the user inputs. (Operation Tips), as shown in the figure, the string "press OK after input", and when the user starts to click the virtual key for input, it is used to display "the selected virtual key". In some embodiments, the presentation frame 26 is not disposed in the first row above the virtual keyboard, as shown in FIG. 14.

The first key group 28 of the present invention includes at least ten number keys, and the number key of the present invention includes at least two permutations and combinations. One of them can be selected as the first key group 28. The first permutation combination is from left to right. "0,1,2,3,4,5,6,7,8, and 9" (as shown in Figure 3), and the second permutation combination from left to right is "1,2,3, 4, 5, 6, 7, 8, 9 and 0 "(as shown in Figure 5). Each time the virtual keyboard 20 of the present invention is executed, the processor 12 randomly selects the first arrangement combination or the second arrangement combination as the first key group of the layout of the virtual keyboard 20 in a random manner. In some embodiments, the first key group 28 includes a third permutation and a fourth permutation in addition to the first permutation and the second permutation described above for random selection. The left-to-right order of the third permutation and combination is "0, 9, 8, 7, 6, 6, 5, 4, 3, 2 and 1" (not depicted), and the left-to-right order of the fourth permutation and combination is " 9, 8, 7, 6, 5, 4, 3, 2, 1 and 0 "(not depicted). Each time this embodiment is executed, one of the four permutations and combinations is randomly selected by the processor 12 as a virtual The first key group 28 of the virtual keyboard 20 layout.

The second key group 30 of the present invention includes at least ten letter keys, which are “q, w, e, r, t, y, u, i, o, and p” from left to right, which is the traditional QWERTY keyboard layout. Order. When the user clicks the "Shift" key of the virtual keyboard 20 (that is, the first "up arrow key" on the left of the fourth key group 34 in the illustration), the processor 12 changes the key label of the second key group 30 to be displayed. Change to capital letters "Q, W, E, R, T, Y, U, I, O, and P".

The third key group 32 of the present invention includes at least nine letter keys, and the order from left to right is "a, s, d, f, g, h, j, k, and l", which is also a traditional QWERTY keyboard layout. order. When the user clicks the "Shift" key of the virtual keyboard 20, the processor 12 changes the key label of the third key group 32 to be changed to "A, S, D, F, G, H, J, K and L ".

The fourth key group 34 of the present invention includes at least seven letter keys. The order from left to right is "z, x, c, v, b, n, and m", which is also the order of the traditional QWERTY keyboard layout. When the user clicks the "Shift" key of the virtual keyboard 20, the processor 12 changes the key label of the fourth key group 34 to "Z, X, C, V, B, N, and M" in uppercase letters. .

Each time the virtual keyboard 20 of the present invention is executed, the processor 12 selects one to a plurality of keys in each key group in a random manner, and enlarges the key widths of the "randomly selected keys". The first embodiment (as shown in FIG. 3) is that each key group randomly selects one to a plurality of keys of different types. In the illustration, the "keys randomly selected" of the first key group 28 is "1" (that is, "numbers" 2 "), the" keys randomly selected "of the second key group 30 is" 2 "(that is," letters q "and" letter i "), and the" keys randomly selected "of the third key group 32 is" 2 "(that is," letter f "and" letter h "), and the" keys randomly selected "for the fourth key group 34 are" 3 "(that is," letter x "," letter m ", and" OK " key). In this embodiment, in the same key group, the randomly selected keys have the same key width, for example, the key width of the "letter q" and the "i" are the same, and the key width of the "letter f" and the "h" are the same. . The present invention sets a "preset value of the number of adjustment keys" (hereinafter referred to as "adjustment number") to control the "number of randomly selected keys". In this embodiment, the adjustment number of each key group is set to: "adjustment number" Greater than 1, and less than or equal to 3 "(" 1 <adjustment amount 3 ").

In the present invention, in the first key group 28, the processor 12 randomly selects the first permutation combination or the second permutation combination, and randomly selects the keys in each key group and enlarges the key width. The purpose is to randomly adjust the virtual In the click area of a key, even if a malicious program records all the click coordinates, the correct characters (ie, keys) cannot be extrapolated from the coordinates. That is, the same click coordinate in the virtual keyboard 20 of the present invention, that is, (X, Y), each time the processor 12 executes and displays on the screen 16, it represents a different key (ie, a character). The first key group 28 is taken as an example for description. It is assumed that the device 10 executing the virtual keyboard 20 of the present invention is a smart phone, and its screen resolution is 1920x1080. The coordinate position of a point in the "Number 1" key in the illustration is assumed to be (100,575). When the processor 12 executes the virtual keyboard 20 next time, it may be that the second combination is selected as the keyboard of the first key group 28. The layout (as shown in Figure 5), that is, the order of arrangement with "1" as the head. At this time, the coordinate position (100,575) is not in the "Number 1" button. Even if the first permutation is selected as the keyboard layout of the first key group 28, that is, the arrangement order led by "0", a certain key (or some key) in the first key group 28 is randomly selected and enlarged by the processor 12 After pressing the key width, the coordinate position (100,575) of this point is still very likely not in the "Number 1" key. In the same way, after other key groups randomly select keys and enlarge the key width by the processor 12, the same coordinate position is likely to represent different keys (ie, characters) each time the execution is performed. This technology can make malicious The click coordinates recorded by the program cannot be used to infer the correct characters. And, because the keys are still in accordance with the traditional QWERTY keyboard layout, The sequence is convenient for users to find the location of the keys according to their usage habits.

The above four key groups of the present invention are only used to regulate the arrangement order of the number keys (the first key group 28) and the alphabet keys (the second key group 30 to the fourth key group 34) in the key group, and the present invention is not limited in function Keys and special symbol keys need to be set in a specific key group. Function keys such as "Enter" (also marked as "Confirm" or "OK"), "Caps Lock", "Shift key", "Backspace key" (that is, the "left arrow key" at the far right of the third key group 32 in the legend) ... and so on. As for "special symbol keys", such as: At (@), underscore (_), dot (.), Blank key (Space), etc., they can be arbitrarily combined into a certain key group manually. That is to say, software developers or other manufacturers applying the method of the present invention can insert function keys and special symbol keys into any key group according to their needs. In some embodiments, when the keys are randomly selected in each key group and the key width is adjusted, the function keys / special symbol keys can be excluded without adjustment, that is, the function keys / special symbol keys maintain fixed keys. width. In some embodiments, the function keys / special symbol keys are responsible for the key group to which they belong and are also in a randomly selected list, that is, the function keys / special symbol keys are randomly selected and adjusted. Referring to FIG. 4, a schematic diagram of a virtual keyboard 20 according to the second embodiment of the present invention. This embodiment illustrates that function keys and special symbol keys can be manually inserted (any developer) into any key group, and the function keys and special symbol keys are manually set. After the key group, you can set whether these function keys and special symbol keys are controlled to adjust the width randomly. Take the "@" symbol key in the illustration as an example. After the "@" symbol key is manually set and combined to the first position on the left of the number key group, regardless of whether the processor 12 randomly selects the first permutation combination, The second permutation combination, the third permutation combination, or the fourth permutation combination, the "@" symbol keys are all located at the first position on the left of the first key group 28. In addition, this embodiment also illustrates that the virtual keyboard 20 is not limited to have its own presentation frame 26 (the embodiment in FIG. 5 has its own presentation frame 26, and the embodiment in FIG. 4 does not); the invention also allows virtual Keyboard 20 and application 22 share password input Frame (as shown in Figure 14, described later).

Referring to FIG. 5, a schematic diagram of a virtual keyboard 20 according to the third embodiment of the present invention. This embodiment illustrates that the processor 12 selects the same number of keys in each key group in a random manner (the legend is “1”, that is, “the number of adjustments = 1 ”), And the key width is enlarged, and the enlarged key widths may not be exactly the same. In other words, there are multiple types of enlarged key widths.

Referring to FIG. 6, a schematic diagram of a virtual keyboard 20 according to the fourth embodiment of the present invention. This embodiment illustrates that the processor 12 selects the same number of keys in each key group in a random manner (the legend is "2", that is, "the number of adjustments = 2" "), And the key width is enlarged, and the randomly selected keys in the same key group have the same key width. For example: In the illustration, the key widths of "Number 1" and "Number 5" are the same, the key widths of "Letter w" and "Letter o" are the same, the key widths of "Letter g" and "Letter k" are the same, and "letter c" "And" letter m "have the same key width.

Referring to FIG. 7, a schematic diagram of a virtual keyboard 20 according to Embodiment 5 of the present invention. This embodiment illustrates that the processor 12 selects the same number of keys in each key group in a random manner (the legend is “3”, that is, “the number of adjustments = 3 "), And the key width is enlarged, and the randomly selected keys in the same key group have the same key width. For example: In the legend, the keypad widths of “Number 4”, “Number 6” and “Number 8” are the same, and the keypad widths of “letter e”, “letter t” and “letter o” are the same, and “letter d” and “letter h” "And" letter k "have the same key width, while" letter x "," letter v "and" letter n "have the same key width.

Referring to FIG. 8, a schematic diagram of a virtual keyboard 20 according to Embodiment 6 of the present invention. This embodiment illustrates that the processor 12 selects the same number of keys in each key group in a random manner (the legend is “2”, that is, “the number of adjustments = 2 ”) And enlarge its key width. This embodiment is different from the above embodiments in that the randomly selected keys in the same key group have different key widths. Degree, which means that the width of the enlarged keys in the same key group is not equal. For example: In the legend, the keypad widths of “Number 1” and “Number 5” are not equal, the keypad widths of “Letter w” and “Letter o” are not the same, and the keypad widths of “Letter g” and “K” are not the same. Long, and the key widths of "letter c" and "letter m" are not equal.

Referring to FIG. 9, a schematic diagram of a virtual keyboard 20 according to the seventh embodiment of the present invention. Contrary to these embodiments, the processor 12 in this embodiment selects a plurality of keys in each key group in a random manner and reduces the key width. In the same key group, the reduced key width is the same. Illustrated by this illustration, the processor 12 randomly selects “7” keys in the first key group 28 and reduces the key width, and randomly selects “7” keys in the second key group 30 and reduces the key width. The third key group 32 randomly selects “7” keys (including function keys) and reduces its key width, and the fourth key group 34 randomly selects “6” keys (including function keys) and reduces its key width. That is, the number of adjustments of each key group in this embodiment is set to: “the number of adjustments is greater than 5 and less than 8” (“5 <the number of adjustments <8”).

Referring to FIG. 10, a schematic diagram of the virtual keyboard 20 according to the eighth embodiment of the present invention, which illustrates that the keyboard layout of the virtual keyboard 20 of this embodiment includes from top to bottom: a presentation frame 26, a second key group 30, and a third key group 32. , The fourth key group 34 and the first key group 28. Although the number keys are arranged below the alphabet keys in this embodiment, all the alphabet keys are still arranged in the order of the traditional QWERTY keyboard layout, and users can still find the positions of the keys according to their operating habits.

Referring to FIG. 11, an operation flowchart of the first embodiment of the present invention. A user uses a smartphone to execute a mobile banking application and log in. Please refer to FIGS. 1, 12, 13, and 14 at the same time. , Contains:

Step S101: Run the application program 22 on the device 10. User in Smart The mobile phone (ie, the device 10) executes the mobile banking application 22, and the screen 16 displays a graphical user interface of the mobile banking application 22.

Step S102: Establish a connection with the server and display a login screen. After the communication module 18 establishes an Internet network connection, the mobile banking application 22 establishes a connection with a remote server, and displays a login screen on the screen 16 as shown in FIG. 12 (the legend is the prior art).

Step S103: Enter the account / user code. The user clicks on the login input box 1 36 and the login input box 38 respectively, and enters the account / user code using a virtual keyboard (not shown) built in the operating system. In some prior art login screens, the user only needs to enter the account (login input box 36) and password (login input box 3 40) without entering the user code (login input box 2 38), which is not depicted. In some embodiments, the virtual keyboard 20 of the present invention can be used to input the account / user code from this step. That is, the user can replace the virtual keyboard built in the operating system with the virtual keyboard 20 to perform input operations at this step. As shown in Figure 13.

Step S104: Click the password input box. After entering the account / user ID, the user clicks the password input box (ie, the login input box three 40). This step starts with the method of the present invention.

Step S105: Obtain the resolution of the screen 16. When the user clicks the login input box three 40 (password input box) in the previous step, the processor 12 is triggered to execute the first program instruction of the virtual keyboard 20 of the present invention. After the first program instruction is executed, the resolution of the screen 16 is obtained and temporarily Stored in the memory 14. The resolution of the screen 16 is used to calculate the display size of the virtual keyboard 20, as shown in FIG. 13.

Step S106: The processor 12 randomly selects the arrangement and combination of the first key group 28. After obtaining the resolution of the screen 16, the second program instruction of the virtual keyboard 20 of the present invention causes the processor 12 The first permutation combination or the second permutation combination is selected as the first key group 28 in a random manner. The order of the first permutation combination from left to right is "0, 1, 2, 3, 4, 5, 6, 7, 8 And 9 ", and the order of the second permutation and combination is" 1,2,3,4,5,6,7,8,9 and 0 ". In some embodiments, the third permutation combination and the fourth permutation combination may be randomly selected by the processor 12. The left-to-right order of the third permutation combination is "0, 9, 8, 7, 6, 5, 4, and 4". , 3, 2 and 1 ", and the fourth permutation and combination from left to right is" 9, 8, 7, 6, 5, 4, 3, 2, 1 and 0 ". The embodiment of FIG. 13 is the order in which the processor 12 selects the first permutation and combination.

Step S107: The processor 12 randomly selects the keys of the first key group 28 to adjust the width. After the second program instruction is executed, the third program instruction of the virtual keyboard 20 of the present invention causes the processor 12 to select the virtual keys of the first key group 28 in a random manner to adjust the key width. In some embodiments, the third program instruction selects one to a plurality of virtual keys in the first key group 28 in a random manner, and then calculates according to the screen 16 resolution obtained in step S105, and adds the “randomly selected keys” Enlarge the key width. In some embodiments, the third program instruction selects one to a plurality of virtual keys in the first key group 28 in a random manner, and then calculates according to the resolution of the screen 16 to reduce the “randomly selected keys” to reduce the key width. After the third program instruction adjusts the width of the virtual keys, the first key group 28 has a plurality of key widths.

Step S108: The processor 12 randomly selects the keys of the second key group 30 to adjust the width. After the keys of the first key group 28 are adjusted in width, the third program instruction causes the processor 12 to randomly select the virtual keys of the second key group 30 to adjust the key width. The second key group is "q, w, e, r, t, y, u, i, o, and p" from left to right. In some embodiments, the third program instruction selects one to a plurality of virtual keys in the second key group 30 in a random manner, and then calculates according to the screen 16 resolution obtained in step S105, and adds the “randomly selected keys” Zoom in button width. In some embodiments, the third program instruction selects one to a plurality of virtual keys in the second key group 30 in a random manner, and then calculates according to the resolution of the screen 16 to reduce the “randomly selected keys” to reduce the key width. After the third program instruction adjusts the width of the virtual key, the second key group 30 has a plurality of key widths.

Step S109: The processor 12 randomly selects the keys of the third key group 32 to adjust the width. After the keys of the second key group 30 are adjusted in width, the third program instruction causes the processor 12 to randomly select the virtual keys of the third key group 32 to adjust the key width. The third key group is "a, s, d, f, g, h, j, k, and l" from left to right. In some embodiments, the third program instruction selects one to a plurality of virtual keys in the third key group 32 in a random manner, and then calculates according to the screen 16 resolution obtained in step S105, and adds the “randomly selected keys” Enlarge the key width. In some embodiments, the third program instruction selects one to a plurality of virtual keys in the third key group 32 in a random manner, and then calculates according to the resolution of the screen 16 to reduce the “randomly selected keys” to reduce the key width. After the third program instruction adjusts the width of the virtual key, the third key group 32 has a plurality of key widths.

Step S110: The processor 12 randomly selects the keys of the fourth key group 34 to adjust the width. After the keys of the third key group 32 are adjusted in width, the third program instruction causes the processor 12 to randomly select the virtual keys of the fourth key group 34 to adjust the key width. The fourth key group is "z, x, c, v, b, n, and m" from left to right. In some embodiments, the third program instruction selects one to a plurality of virtual keys in the fourth key group 34 in a random manner, and then calculates according to the screen 16 resolution obtained in step S105, and adds the “randomly selected keys” Enlarge the key width. In some embodiments, the third program instruction selects one to a plurality of virtual keys in the fourth key group 34 in a random manner, and then calculates according to the resolution of the screen 16 to add “the randomly selected keys”. Reduce the key width. After the third program instruction adjusts the width of the virtual key, the fourth key group 34 has a plurality of key widths.

Step S111: Display the virtual keyboard 20 on the screen 16. After the third program instruction randomly adjusts the key width of each key group, the fourth program instruction of the virtual keyboard 20 of the present invention displays the virtual keyboard 20 on the screen 16. In some embodiments, the order of the virtual keyboard 20 from top to bottom is a first key group 28, a second key group 30, a third key group 32, and a fourth key group 34. In some embodiments, the order of the virtual keyboard 20 from top to bottom is the second key group 30, the third key group 32, the fourth key group 34, and the first key group 28. In some embodiments, the virtual keyboard 20 displayed by the fourth program instruction further includes a presentation frame 26, as shown in FIG. 13. When a user inputs a password in the virtual keyboard 20 of this embodiment, the input character string (ie, the password) will be temporarily displayed in the presentation frame 26. When the user presses the "OK key" of the virtual keyboard 20, the The entered character string will be transmitted to the login input box three 40 (password input box). In some embodiments, the virtual keyboard 20 displayed by the fourth program instruction is as shown in FIG. 14. When a user enters a password in the virtual keyboard 20 of this embodiment, the input character string is directly displayed in the login input box 3 40, that is, this embodiment is that the login input box three 40 of the application program 22 and the presentation box 26 of the virtual keyboard 20 share the same password input box.

Step S112: Select keys of the virtual keyboard 20 to input a password. After the fourth program command displays the virtual keyboard 20 on the screen 16, the user inputs the password by clicking the virtual keys. When the user clicks a button (that is, the click event occurs in the click area of the button), the fifth program instruction of the virtual keyboard 20 of the present invention receives and records each click coordinate, and then the fifth program instruction analyzes the click coordinates. Yes, to find out which character (or function key) corresponds to the coordinates clicked. Finally, the fifth program instruction displays the corresponding characters in the presentation frame 26 and is temporarily stored in the memory 14. Each click coordinate analysis corresponds to a character (or function key), and the memory 14 The multiple characters stored in sequence are collectively called a "character string". In some embodiments, the fifth program instruction does not directly display the character string corresponding to the click coordinates in the presentation frame 26, but displays an asterisk (*) instead.

Step S113: Click "OK" of the virtual keyboard 20. After the password is input, the user clicks the "OK" key of the virtual keyboard 20. At this time, the sixth program instruction of the virtual keyboard 20 of the present invention generates a corresponding check code for the character string (that is, the password) with a check function. (Checksum) and temporarily stored in the memory 14. In some embodiments, the check function is a hash function, and the corresponding check code is a hash value.

Step S114: The password is transmitted to the password input box. After the sixth program instruction generates the corresponding check code, the fifth program instruction sends the character string in the memory 14 to the password input box (login input box 3 40) of the program program 22, and at the same time, the memory 14 Check code is sent to app 22. After the application program 22 receives the check code and the character string (received through the login input box three 40), it verifies the data of the character string with the check code.

Step S115: Click the login button 42. After receiving the character string and check code in the login input box three 40 and verifying the authenticity of the data, the user can click the login button 42.

In the operation flow of the above embodiment, steps S104 to S114 are methods of displaying a dynamic virtual keyboard according to the present invention, and the remaining steps belong to the prior art. In some embodiments, the virtual keyboard 20 of the present invention can also be used to enter an account from step S103. User code.

The check function and check code used in the above steps S113 to S115 are to prevent the device 10 from being inserted into a Trojan horse program or a hacker to change the relevant input values by falsifying the data in the memory. Therefore, the present invention uses a check function and a check code to verify the authenticity of the data.

The above-mentioned operation flow is a device 10 with touch screen (ie, a smartphone) As an example, the present invention can also be applied to a non-screen touch-sensitive device 10, such as a personal computer or a notebook computer. When applied to the non-screen touch-sensitive device 10, the user operates with a physical keyboard in step S103, or clicks on the keys with an input device module 24 (such as a mouse), and in steps S104 and S112 And step S113, the user clicks on the keys with the input device module 24. In addition, since the screen 16 of the personal computer is large and has a sufficient display area, in some embodiments, the virtual keyboard 20 of the present invention is displayed in a fixed size when the device 10 such as a personal computer / notebook computer is executed. In step S105, it is not necessary to detect the resolution of the screen 16.

It can be understood for different embodiments of the present invention that program instructions executed by a computer can implement each block in the flowchart, a combination of the blocks in the flowchart, and the steps in each embodiment. The program instructions are provided to a processor for operation to generate a machine or to produce resources that work in conjunction with hardware and software. When these instructions are executed on the processor, the actions specified in the flowchart blocks will be generated. Or technical effects. Different sets of program instructions can also cause at least some of the operation steps shown in the flowchart block to be performed in parallel, and the technical content expressed by each program instruction of the virtual keyboard may be different according to different embodiments. In addition, some of these steps can also be performed on more than one processor, such as the cooperative operation of the microprocessor and the peripheral interface processor in the device of the present invention. In addition, without departing from the scope or spirit of the present invention, one or more blocks or combinations of blocks in the flowchart can be performed simultaneously with other blocks or combinations of blocks, or even in a different order than shown. .

Therefore, the blocks of the flowchart of the present invention support a combination of components for performing a specified action or technical effect, a combination of steps for performing a specified action or technical effect, and a program instruction component for performing a specified action or technical effect. It can also be understood that these specified actions or technical effects are implemented by special-purpose hardware-type systems or special-purpose hardware in conjunction with program instructions. Each block of the flowchart of the present invention and a combination of blocks of the flowchart.

To sum up, the present invention proposes a technology for displaying a dynamic virtual keyboard, which solves the problem that the prior technology cannot be arranged in the order of the traditional QWERTY keyboard layout at the same time, and avoids the problem of malicious programs recording side-by-side click coordinates. The technology of the present invention can satisfy Users are accustomed to the needs of operation, and also improve the level of information security protection, making up for the shortcomings of the previous technology.

Although the technical content of the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art and making some changes and retouching without departing from the spirit of the present invention should be covered by the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope of the appended patent application.

Claims (15)

A method for displaying a dynamic virtual keyboard is applied to a device to generate a virtual keyboard. The device includes a processor, a memory, and a screen. The method includes: causing the processor to randomly select a memory from the memory. A first permutation or a second permutation is used as a first key group, and the first permutation is “0, 1, 2, 3, 4, 5, 6, 7, 8, and 9” from left to right. , And the second permutation is “1,2,3,4,5,6,7,8,9, and 0” from left to right; so that the processor selects one of the first key group to A plurality of virtual keys to adjust a key width so that the first key group has a plurality of the key widths; so that the processor reads a second key group in the memory and randomly selects one of the second key groups to A plurality of the virtual keys to adjust the width of the keys, so that the second key group has a plurality of types of the key width, and the second key group is from left to right in the order "q, w, e, r, t, y, u, i, o and p "; causes the processor to read a third key group in the memory and select the third key in a random manner One to a plurality of the virtual keys to adjust the width of the key, so that the third key group has a plurality of types of the key width, and the third key group is “a, s, d, f, g, h, j, k, and l "; cause the processor to read a fourth key group in the memory and select one to a plurality of the virtual keys in a random manner to adjust the width of the key so that the fourth key The group has a plurality of key widths, and the fourth key group is “z, x, c, v, b, n, and m” from left to right; the virtual keyboard is displayed on the screen, and the virtual keyboard is from top to bottom. The order is the second key group, the third key group, and the fourth key group; a click coordinate is received and converted into a character corresponding to the virtual keyboard; the character is stored in the memory; read A plurality of the characters are sequentially stored in the memory to form a character string; and the character string is transmitted to a login input box of an application. The method for displaying a dynamic virtual keyboard as described in claim 1, further comprising a third permutation combination and a fourth permutation combination for the processor to randomly select as the first key group. The left-to-right order is "0, 9, 8, 7, 6, 5, 4, 3, 2, and 1", and the fourth permutation combination is "9, 8, 7, 6, 5, and 5". , 4, 3, 2, 1 and 0 ". The method for displaying a dynamic virtual keyboard according to claim 1, wherein the virtual keyboard is in the order of the first key group, the second key group, the third key group, and the fourth key group from top to bottom. The method for displaying a dynamic virtual keyboard according to claim 1, wherein the virtual keyboard is in the order of the second key group, the third key group, the fourth key group, and the first key group from top to bottom. The method for displaying a dynamic virtual keyboard according to claim 1, further comprising: obtaining a resolution of the screen; and the processor adjusts the key width according to the resolution of the screen. A computer program product is installed on a device having a screen and a memory. The computer program product includes: a second program instruction to randomly select a first arrangement or a second arrangement as a first Key group, the first arrangement from left to right is "0, 1, 2, 3, 4, 5, 6, 7, 8, and 9", and the second arrangement is "1 from left to right" , 2, 3, 4, 5, 6, 7, 8, 9, and 0 "; a third program instruction to randomly select the first key group, a second key group, a third key group, and a first One of the four-key group to a plurality of virtual keys to adjust a key width, so that the first key group, the second key group, the third key group, and the fourth key group have a plurality of types of the key width, and the second key The group from left to right is "q, w, e, r, t, y, u, i, o, and p", and the third key group from left to right is "a, s, d, f, g , H, j, k, and l ", the fourth key group is" z, x, c, v, b, n, and m "from left to right; a fourth program instruction displays a virtual keyboard on the screen , The virtual keyboard from top to bottom The order is the second key group, the third key group, and the fourth key group; a fifth program instruction receives a click coordinate and converts it into a character corresponding to the virtual keyboard, and displays the character in Presenting a frame and storing it in the memory, reading a plurality of the characters sequentially stored in the memory to form a character string, and transmitting the character string to a login input box of an application; The program instructions are stored in the memory. The computer program product according to claim 6, further comprising: a third permutation combination and a fourth permutation combination for the second program instruction to be randomly selected as the first key group, and the third permutation combination by The left-to-right order is "0, 9, 8, 7, 6, 5, 4, 3, 2, and 1", and the fourth permutation combination is "9, 8, 7, 6, 5, and 5". , 4, 3, 2, 1 and 0 ". The computer program product according to claim 6, wherein the order of the virtual keyboard from top to bottom is the first key group, the second key group, the third key group, and the fourth key group. The computer program product according to claim 6, wherein the virtual keyboard is in the order of the second key group, the third key group, the fourth key group, and the first key group from top to bottom. The computer program product according to claim 6, further comprising: a first program instruction to obtain a resolution of the screen; and the third program instruction adjusts the key width according to the resolution of the screen. A method for displaying a dynamic virtual keyboard is applied to a device to generate a virtual keyboard. The device includes a processor, a memory, and a screen. The method includes: causing the processor to randomly select a memory from the memory. A first permutation or a second permutation is used as a first key group, and the first permutation is “0, 1, 2, 3, 4, 5, 6, 7, 8, and 9” from left to right. , And the second permutation is “1,2,3,4,5,6,7,8,9, and 0” from left to right; so that the processor selects one of the first key group to A plurality of virtual keys to adjust a key width so that the first key group has a plurality of the key widths; the virtual keyboard is displayed on the screen; a click coordinate is received and converted into a character corresponding to the virtual keyboard; Characters are stored in the memory; a plurality of the characters sequentially stored in the memory are read to form a character string; and the character string is transmitted to a login input box of an application. A method for displaying a dynamic virtual keyboard is applied to a device to generate a virtual keyboard. The device includes a processor, a memory, and a screen. The method includes: causing the processor to read a second key in the memory. Group and select one of the second key group to a plurality of the virtual keys in a random manner to adjust the key width, so that the second key group has a plurality of types of the key width, and the second key group is from “q” to “q” , W, e, r, t, y, u, i, o, and p "; causes the processor to read a third key group in the memory and randomly select one to a plurality of the third key groups in the memory Virtual keys to adjust the key width, so that the third key group has a plurality of types of the key width, and the third key group is “a, s, d, f, g, h, j, k and l” from left to right "; Causing the processor to read a fourth key group in the memory and select one of the fourth key group to a plurality of the virtual keys in a random manner to adjust the key width so that the fourth key group has a plurality of the Key width, the fourth key group from left to right is "z, x, c, v, b, n, and m ; The virtual keyboard is displayed on the screen, and the virtual keyboard is in the order of the second key group, the third key group, and the fourth key group from the top to the bottom; a click coordinate is received and converted to the corresponding virtual keyboard A character; storing the character into the memory; reading a plurality of the characters sequentially stored in the memory to form a character string; and transmitting the character string to one of an application program Log in to the input box. A method for displaying a dynamic virtual keyboard is applied to a device to generate a virtual keyboard. The device includes a processor, a memory, and a screen. The method includes: causing the processor to read a second key in the memory. Group and select one of the second key group to a plurality of the virtual keys in a random manner to adjust the key width, so that the second key group has a plurality of types of the key width, and the second key group is from “q” to “q” , W, e, r, t, y, u, i, o, and p "; causes the processor to read a third key group in the memory, and the third key group is" a, s, d, f, g, h, j, k, and l "; causes the processor to read a fourth key group in the memory, and the fourth key group from left to right is" z, x, c , V, b, n, and m "; the virtual keyboard is displayed on the screen, and the virtual keyboard is in order from the second key group, the third key group, and the fourth key group; receiving a click coordinate And convert to a character corresponding to the virtual keyboard; store the character into the memory; read a plurality of the characters sequentially stored in the memory to Into a character string; and one, the character string is transmitted to an application entry input box. A method for displaying a dynamic virtual keyboard is applied to a device to generate a virtual keyboard. The device includes a processor, a memory, and a screen. The method includes: causing the processor to read a second key in the memory. Group, the second key group is "q, w, e, r, t, y, u, i, o, and p" from left to right; causing the processor to read a third key group in the memory And randomly select one of the third key group to a plurality of the virtual keys to adjust the key width, so that the third key group has a plurality of types of the key width, and the third key group is “a, s, d, f, g, h, j, k, and l "; causes the processor to read a fourth key group in the memory, and the fourth key group from left to right is" z, x, c , V, b, n, and m "; the virtual keyboard is displayed on the screen, and the virtual keyboard is in order from the second key group, the third key group, and the fourth key group; receiving a click coordinate And convert to a character corresponding to the virtual keyboard; store the character into the memory; read a plurality of the characters sequentially stored in the memory to Into a character string; and one, the character string is transmitted to an application entry input box. A method for displaying a dynamic virtual keyboard is applied to a device to generate a virtual keyboard. The device includes a processor, a memory, and a screen. The method includes: causing the processor to read a second key in the memory. Group, the second key group is "q, w, e, r, t, y, u, i, o, and p" from left to right; causing the processor to read a third key group in the memory , The third key group is “a, s, d, f, g, h, j, k, and l” from left to right; the processor reads a fourth key group in the memory and randomly Select one of the fourth key group to a plurality of the virtual keys to adjust the key width, so that the fourth key group has a plurality of the key widths, and the fourth key group is “z, x, c” in order from left to right , V, b, n, and m "; the virtual keyboard is displayed on the screen, and the virtual keyboard is in order from the second key group, the third key group, and the fourth key group; receiving a click coordinate And convert to a character corresponding to the virtual keyboard; store the character into the memory; read a plurality of the characters sequentially stored in the memory to Into a character string; and one, the character string is transmitted to an application entry input box.