CN102193711A - Method and device for displaying letter keys of virtual keyboard - Google Patents

Abstract

The invention discloses a method and device for displaying letter keys of a virtual keyboard. The high-frequency letters; the high-frequency letters are based on the order of the letters entered by the user in history, and statistically count several letters with a high input probability among the multiple first letters that have been input after multiple input of the input letter; And display the letter keys of the virtual keyboard; wherein, the area where the keys of the high-frequency letters determined in the letter keys of the virtual keyboard are located is enlarged. By adopting the method and device provided by the invention, the accuracy and input speed of clicking keys when using a virtual keyboard to input characters are improved.

Description

Alphabet key display method and device of a virtual keyboard

technical field

The invention relates to the technical field of computers, in particular to a method and a device for displaying letter keys of a virtual keyboard.

Background technique

With the increasingly perfect touch screen technology, more and more touch screen devices appear in daily life, especially in mobile communication devices such as mobile phones. Since the input method is an important way of human-computer interaction and greatly affects the user experience of mobile phones, for most touch-screen mobile phones without physical keyboards, the rationality of the layout design of virtual keyboard keys is very important.

At present, the commonly used touch screen mobile phone virtual keyboard key layout is roughly divided into two types, one is the Qwerty keyboard key layout based on the keyboard key layout of computers and printers, and the other is the nine-key layout based on the physical key layout of traditional mobile phones. These two layouts both inherit the traditional physical button layout familiar to the majority of users, so they can be quickly grasped by users to achieve the purpose of fast input.

In the key layout of the Qwerty keyboard, each English letter has a separate letter key corresponding to it, and the user can directly input each letter without selecting and switching. However, the touch screen area of portable devices (such as mobile phones) is limited, and the number of Qwerty keyboard keys is large, so the size of each key is limited, which affects the accuracy of clicking the virtual keyboard keys.

In contrast, the nine-key keyboard puts all 26 English letters in the 3*3 area, and its number of keys is much less than that of the Qwerty keyboard, so the click accuracy is greatly improved, especially suitable for direct finger click. However, since the nine-key keyboard layout adopts the method of key reuse, both pinyin and English input have increased the possibility of a large number of combinations. Users need to make further choices to get the content they want to input. When using a keyboard for input, the number of keystrokes is much greater than that of using a Qwerty keyboard, and the shortcut of input is affected. Therefore, especially for mobile phone user groups who are proficient in using computers, the Qwerty keyboard is still the preferred keyboard layout.

The existing touch screen virtual keyboard key layout method has the following problems. The virtual keyboard using the Qwerty keyboard key layout, because the key size is small, the user cannot click accurately when clicking with a finger, which reduces the input speed.

Contents of the invention

Embodiments of the present invention provide a method and device for displaying letter keys of a virtual keyboard, which are used to improve the accuracy and input speed of clicking keys when using the virtual keyboard for text input.

An embodiment of the present invention provides a method for displaying letter keys of a virtual keyboard, comprising:

Determine the high-frequency letters corresponding to the input letters according to the input letters and the statistical correspondence between the input letters and high-frequency letters in the text input process;

When the virtual keyboard is displayed, the keys of the high-frequency letters corresponding to the input letters are enlarged.

The embodiment of the present invention also provides a letter key display device of a virtual keyboard, comprising:

A determining unit, configured to determine the high-frequency letters corresponding to the input letters according to the input letters and the statistical correspondence between the input letters and high-frequency letters during the current text input process;

The display unit is configured to enlarge the keys of the high-frequency letters corresponding to the input letters when the virtual keyboard is displayed.

In the method provided by the embodiment of the present invention, after the user enters a letter during a text input process, the high-frequency letter corresponding to the entered letter is determined according to the corresponding relationship between the entered letter and the statistically entered letter and the high-frequency letter ; and when the letter keys of the virtual keyboard are displayed next, the keys of the high-frequency letters in the letter keys of the determined virtual keyboard are enlarged; wherein, since the high-frequency letters correspond to the letters that have been input, it reflects the user's input habits, Therefore, enlarging the keys of high-frequency letters is convenient for the user to click on the keys of high-frequency letters, thereby improving the accuracy and input speed of clicking the keys.

Description of drawings

Fig. 1 is the flow chart of the letter button display method of the virtual keyboard that the embodiment of the present invention provides;

Fig. 2 adopts the virtual keyboard key layout schematic diagram of the layout mode of the letter key of Qwerty keyboard in the embodiment of the present invention;

FIG. 3 is a flow chart of a method for displaying letter keys of a virtual keyboard provided by Embodiment 1 of the present invention;

Fig. 4 is the display schematic diagram of the letter keys of the virtual keyboard adopting the layout mode of the letter keys of Qwerty keyboard in the embodiment of the present invention;

FIG. 5 is a flow chart of a method for displaying letter keys of a virtual keyboard provided by Embodiment 2 of the present invention;

FIG. 6 is a schematic structural diagram of a display device for letter keys of a virtual keyboard provided by an embodiment of the present invention.

Detailed ways

In order to provide an implementation plan for improving the accuracy and input speed of clicking buttons when using a virtual keyboard for text input, the embodiment of the present invention provides a method and device for displaying letter keys on a virtual keyboard. The embodiments are described, and it should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention. And in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

The embodiment of the present invention provides a method for displaying letter keys of a virtual keyboard, as shown in FIG. 1 , comprising:

Step S101 : Determine the high-frequency letter corresponding to the input letter according to the input letter in the current character input process and the statistical correspondence between the input letter and the high-frequency letter.

The high-frequency letters are the letters with high input probability among the first letters input after multiple input of the input letters according to the order of the letters entered by the user in history.

Step S102 , when the virtual keyboard is displayed, enlarge the key of the high-frequency letter corresponding to the input letter.

Preferably, in the above step S101, corresponding to each row of keys of the virtual keyboard, a specified number of high-frequency letters corresponding to the input letters can be determined from all letters corresponding to each row of keys, correspondingly, in the above steps In S102, when the letter keys of the virtual keyboard are displayed, the keys of the high-frequency letters of each row of keys may be enlarged and displayed.

Due to the limited width of the screen, it is necessary to use other areas when enlarging high-frequency letter keys. For example, in order to obtain a better magnification effect, use the area where the adjacent keys are located, and in order not to affect the click accuracy of the adjacent keys, it cannot The area where its adjacent keys are located can be arbitrarily reduced. Specifically, for a row of buttons in the virtual keyboard, one of the following methods provided by the embodiment of the present invention can be used to display the row of letter buttons:

Method 1: Since the number of keys in each row may be different, the width of the general display screen is based on the width of the area where the row of keys with the largest number of keys is located. In order to facilitate the appearance and conform to the layout of the physical keyboard, the distance between the keys is Same, as shown in Figure 2, it is a schematic diagram of virtual keyboard key layout adopting the layout mode of letter keys of Qwerty keyboard, wherein, the quantity of the first row of keys is greater than the quantity of the second row of keys, then for the less row of keys of the key quantity , there will be a blank area on both sides of it, so the blank area can be used to display the row of letter keys, specifically: when displaying the row of letter keys, enlarge the high-frequency letter keys, and at the same time maintain the size and size of other letter keys The distance between the letter keys remains unchanged. At this time, the width of the area occupied by all the letter keys in this row will become larger than before, and the excess part can be displayed in this blank area, as shown in the second row of letters in Figure 4. key display.

Method 2: In addition to letter keys, the keys in the virtual keyboard also have non-alphabet keys, such as punctuation mark keys, space keys, enter keys and backspace keys, etc., as shown in Figure 2, commas are set in the third row of keys button and enter button, and in the process of inputting text (such as Chinese characters), some non-letter buttons will not be clicked and used, such as punctuation buttons, so you can use the area where these non-letter buttons are located to display the row of letter buttons, Specifically, when displaying the row of letter buttons, enlarge the high-frequency letter buttons, and keep the size of the other letter buttons and the distance between the letter buttons unchanged. At this time, the width of the area occupied by all letter buttons in the row is compared It will become larger before, and the excess part can be displayed by using the area where these non-letter keys are located, as shown in the display of the third row of letter keys as shown in FIG. 4 .

Method 3: According to the text input rules, after entering several letters, some letters will not be entered first. For example, when entering Chinese characters, the letter "V" can only be entered between the letter "L" and Only after "N" can be clicked. For example, the letters "I", "U" and "V" will not be input as the first letter. At this time, you can use these letters that will not be the first input. The area displays other letter buttons in the row, specifically: when displaying other letter buttons in the row, enlarge the high-frequency letter buttons, and keep the size of the rest of the letter buttons and the distance between the letter buttons unchanged, at this time the row The width of the area occupied by other letter keys will be larger than before, and the excess part can be displayed by using the area where the first input letter key is not located.

Method 4: If there is no screen blank area on both sides of the virtual keyboard, and there are no non-letter keys, and all letters may be entered first, as shown in Figure 2. This situation may occur in a row of buttons. At this time, according to the corresponding relationship between the input letters and the statistics of the input letters and the low-frequency letters, the designated letter corresponding to the input letter can be determined among all the letters corresponding to the row of buttons. and reduce the determined low-frequency letter keys, enlarge the determined high-frequency letter keys, and display all letter keys of the row of letters in the virtual keyboard. Preferably, the reduced width of the low-frequency letter keys is the same as The enlarged width of the high-frequency letter keys is equal; among them, corresponding to the high-frequency letters, the low-frequency letters are the sequence of letters input according to the user's history, and the statistics correspond to multiple input after multiple input of the input letters. Several letters with low input probability in one letter.

In the above method provided by the embodiment of the present invention, the number of letters that have been input and the number of high-frequency letters and low-frequency letters determined can be flexibly set according to actual needs. For example, for the number of letters that have been input, you can During the input process of a Chinese character, when the quantity of all the letters that have been input is not greater than 3, determine the high-frequency letter and the low-frequency letter according to all the letters that have been input, when the quantity of all the letters that have been input is greater than 3, according to the latest The input 3 letters determine high-frequency letters and low-frequency letters; the number of determined high-frequency letters and low-frequency letters can be selected as 2.

In the above method provided by the embodiment of the present invention, the statistical correspondence between the input letters and the high-frequency letters, and the statistical correspondence between the input letters and the low-frequency letters can be calculated according to the number of times the user has set the input history, Definitely unchanged; it can also be dynamically updated after the user enters a letter through the letter keys of the displayed virtual keyboard. Specifically, it can be: update the statistical input probability of each first letter after entering the input letter , and when the size relationship between the input probabilities of the first letters of the input changes, the corresponding relationship between the input letters and the high-frequency letters of the statistics is updated; this dynamic update method can also be updated after the input of the interval setting times once.

Below in conjunction with accompanying drawing, adopt the layout mode of the letter key of Qwerty keyboard as an example with the layout mode of the letter key in the virtual keyboard, the method and device provided by the invention are described in detail, in other embodiments, the method provided by the invention also The layout of other letter keys can be adopted.

Embodiment one:

Fig. 3 shows the flowchart of the method for displaying the letter keys of the virtual keyboard provided by Embodiment 1 of the present invention, including:

Step S301 , displaying the keys of the initial virtual keyboard, where the keys of the virtual keyboard in the initial state may be of the same size, as shown in FIG. 2 .

Step S302, the user performs key input during the current text input process.

Step S303, during this text input process, when the number of all the letters that have been input is not greater than 3, obtain all the letters that have been input, and when the number of all the letters that have been input is greater than 3, obtain the latest 3 letters .

Step S304, according to the obtained input letters and the statistical correspondence between the input letters and high-frequency letters, corresponding to the three rows of keys on the virtual keyboard, determine the acquired input letters among all the letters corresponding to each row of keys Corresponding to the 2 high-frequency letters, a total of 6 high-frequency letters are determined.

Step S305, for the first row of buttons, when according to the text input rules, it is determined in the first row of buttons that the letter that will not be the first input after the input letter is input, use the determined letter that will not be the first In the area where the key of the input letter is located, other letter keys in the first row of keys are displayed; otherwise, all letters corresponding to the keys in the first row are Determine the 2 low-frequency letters corresponding to the input letter, and display the first row of letter buttons by narrowing the area where the determined 2 low-frequency letter buttons are located; when displaying the first row of letter buttons, zoom in and confirm High-frequency letter keys;

For the second row of buttons, occupy the blank area of the screen on both sides of the second row of buttons, and display the second row of letter buttons; when displaying the second row of letter buttons, zoom in on the determined high-frequency letter buttons;

For the third row of buttons, occupy the area where the non-letter buttons in the third row of buttons are located, and display the third row of letter buttons; when displaying the third row of letter buttons, enlarge the determined high-frequency letter buttons;

A schematic diagram of displaying alphabetic keys of the above-mentioned virtual keyboard is shown in FIG. 4 .

In this step, the processing of the three rows of keys may be performed simultaneously or sequentially.

Step S306, judging whether the user has selected Chinese characters to complete the current text input, if yes, proceed to step S301, otherwise, proceed to step S302.

Embodiment two:

FIG. 5 is a flow chart of a method for displaying letter keys of a virtual keyboard provided in Embodiment 2 of the present invention, including:

Step S501 , displaying the keys of the initial virtual keyboard, wherein in the virtual keyboard in the initial state, the area where each key is located may be of the same size, as shown in FIG. 2 .

Step S502, the user performs key input during the current text input process.

Step S503, during this text input process, when the number of all the letters that have been input is not greater than 3, obtain all the letters that have been input, and when the number of all the letters that have been input is greater than 3, obtain the last 3 letters that have been input .

Step S504, according to the obtained input letters and the statistical correspondence between the input letters and high-frequency letters, corresponding to the three rows of keys on the virtual keyboard, determine the acquired input letters among all the letters corresponding to each row of keys Corresponding to the 2 high-frequency letters, a total of 6 high-frequency letters are determined.

Step S505, for each row of buttons, each row of letter buttons is displayed in the following manner:

First judge whether there is a blank area on the screen on both sides of the button in this row. If there is a blank area, use the blank area on the screen on both sides of the button in the row to display the letter button in the row; if there is no blank area, then judge whether there is a blank area in the button in the row Non-alphabetic keys that cannot be clicked, if there are non-alphabetic keys, occupy the area where the non-alphabetic keys in the row of keys are located, and display the row of alphabetic keys; Whether it is determined that the letter that will not be the first input after the entered letter is entered, if it is determined, occupy the area where the key that is determined not to be the first input letter is located, and display other letters of the row of keys button; if it is not determined, according to the corresponding relationship between the input letters obtained and the statistics of the input letters and the low-frequency letters, determine the 2 low-frequency letters corresponding to the input letters in all letters corresponding to the row of buttons, And narrow down the area where the two determined low-frequency letter keys are located, and display the row of letter keys.

In this step, when each row of letter keys is displayed, the determined high-frequency letter keys are enlarged, as shown in FIG. 4 .

In this step, the processing of the three rows of keys can be performed simultaneously or sequentially.

Step S506 , judging whether the user has selected Chinese characters to complete the current text input, if yes, go to step S501 , otherwise, go to step S502 .

Based on the same inventive concept, according to the method for displaying the letter keys of the virtual keyboard provided by the above-mentioned embodiments of the present invention, another embodiment of the present invention also provides a display device for the letters of the virtual keyboard, the structural diagram of which is shown in Figure 6 display, including:

The determination unit 601 is used to determine the high-frequency letters corresponding to the input letters according to the input letters and the statistical correspondence between the input letters and high-frequency letters in the current text input process;

The display unit 602 is configured to enlarge the keys of the high-frequency letters corresponding to the input letters when the virtual keyboard is displayed.

Preferably, the determining unit 601 is specifically configured to correspond to each row of keys of the virtual keyboard according to the corresponding relationship between the input letters and the statistics of the input letters and high-frequency letters in the current text input process, and press each row of keys respectively. A specified number of high-frequency letters corresponding to the input letters are determined from all the corresponding letters.

Preferably, the display unit 602 is specifically configured to display the row of letter keys in the virtual keyboard in the following manner:

Use the screen blank areas on both sides of the row of buttons to display the row of letter buttons of the virtual keyboard; or

Use the area where the non-letter keys of the row of keys are located to display the row of letter keys of the virtual keyboard; or

According to the text input rules, determine the letter that will not be the first input after the entered letter is entered; and use the area where the key that is not the first input letter determined in the row of keys is located to display the virtual keyboard other letter keys in the row; or

According to the correspondence between the entered letters and the statistics of the entered letters and the low-frequency letters, determine the specified number of low-frequency letters corresponding to the entered letters in all the letters corresponding to the row of keys; narrow down the location of the determined low-frequency letters area, displaying the row of letter keys in the virtual keyboard;

And when displaying, the keys of the high-frequency letters determined in the row of keys are enlarged.

Preferably, the display unit 602 is specifically configured to display the other letter keys in the first row of the virtual keyboard by using the area where the key that is not the first input letter is determined in the first row of keys; or zoom out The area where the keys of the low-frequency letters in the determined first row of keys are located displays the first row of letter keys in the virtual keyboard; and when displayed, the keys of the high-frequency letters determined in the first row of keys are enlarged; Use the screen blank areas on both sides of the second row of buttons to display the second row of letter buttons in the virtual keyboard; and when displaying, the buttons of the high-frequency letters determined in the second row of buttons are enlarged; use the third row of buttons In the area where the non-letter keys are located, the letter keys of the row in the virtual keyboard are displayed; and the keys of the high-frequency letters determined in the third row of keys are enlarged when displayed; the layout of the letter keys in the virtual keyboard adopts the Qwerty keyboard The layout of the letter keys.

Preferably, the above display device further includes:

The updating unit 603 is configured to update the statistical correspondence between the input letters and the high-frequency letters after the user inputs letters through the letter keys of the displayed virtual keyboard.

In summary, the solution provided by the embodiment of the present invention includes: determining the high-frequency letters corresponding to the entered letters according to the correspondence between the entered letters and the statistically entered letters and high-frequency letters in the text input process. ; High-frequency letters are based on the order of letters entered by the user in history, counting several letters with high input probability among the first letters that have been input after multiple input of the input letter; and display the virtual keyboard The letter keys of the virtual keyboard; wherein, the area where the keys of the high-frequency letters determined in the letter keys of the virtual keyboard are located is enlarged. Using the scheme provided by the embodiment of the present invention, since the high-frequency letters are in the order of the letters entered according to the user's history, statistically, the input probability among the multiple first letters corresponding to the input after multiple input of the input letter is high Several letters in the system reflect the user's input habits. Therefore, the buttons of high-frequency letters are enlarged to facilitate the user's clicking on the buttons of high-frequency letters, which improves the accuracy and input accuracy of clicking buttons when using the virtual keyboard for text input. speed.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (10)

1. A letter button display method of a virtual keyboard, characterized in that, comprising: Determine the high-frequency letters corresponding to the input letters according to the input letters and the statistical correspondence between the input letters and high-frequency letters in the text input process; When the virtual keyboard is displayed, the keys of the high-frequency letters corresponding to the input letters are enlarged. 2. The method according to claim 1, characterized in that, determining the high-frequency letters corresponding to the input letters is specifically: Corresponding to each row of keys of the virtual keyboard, a specified number of high-frequency letters corresponding to the input letters are respectively determined among all letters corresponding to each row of keys. 3. The method according to claim 2, wherein when the virtual keyboard is displayed, the keys of the high-frequency letters corresponding to the input letters are enlarged, specifically comprising: For a row of keys in the virtual keyboard, the row of letter keys is displayed as follows: Use the screen blank areas on both sides of the row of buttons to display the row of letter buttons of the virtual keyboard; or Use the area where the non-letter keys of the row of keys are located to display the row of letter keys of the virtual keyboard; or According to the text input rules, determine the letter that will not be the first input after the input letter is input; and use the area where the key that will not be the first input letter determined in the row of keys is located, display the row of other letter keys in the virtual keyboard; or According to the corresponding relationship between the input letters and the low-frequency letters of the input letters and statistics, determine the specified number of low-frequency letters corresponding to the input letters in all letters corresponding to the row of keys; narrow down and determine The area where the keys of the low-frequency letters are located displays the keys of the row of letters in the virtual keyboard; And when displaying, the keys of the high-frequency letters determined in the row of keys are enlarged. 4. the method for claim 3 is characterized in that, the layout mode of the letter button in the described virtual keyboard adopts the layout mode of the letter button of Qwerty keyboard; When the virtual keyboard is displayed, the keys of the high-frequency letters corresponding to the input letters are enlarged, specifically including: Utilize the area where the key that will not be the first input letter is determined in the first line of keys, display the first line of other letter keys in the virtual keyboard; or reduce the identified first line of keys. The area where the keys of the low-frequency letters are located displays the first row of letter keys in the virtual keyboard; and when displayed, the keys of the high-frequency letters determined in the first row of keys are enlarged; Utilize the blank areas of the screen on both sides of the second row of buttons to display the second row of letter buttons in the virtual keyboard; and enlarge the buttons of the high-frequency letters determined in the second row of buttons when displaying; Use the area where the non-letter keys in the third row of keys are located to display the row of letter keys in the virtual keyboard; and enlarge the keys of the high-frequency letters determined in the third row of keys when displaying. 5. The method according to any one of claims 1-4, further comprising: After the user inputs a letter through the letter keys of the displayed virtual keyboard, the corresponding relationship between the inputted letter and the high-frequency letter is updated. 6. A letter key display device of a virtual keyboard, characterized in that, comprising: A determining unit, configured to determine the high-frequency letters corresponding to the input letters according to the input letters and the statistical correspondence between the input letters and high-frequency letters during the current text input process; The display unit is configured to enlarge the keys of the high-frequency letters corresponding to the input letters when the virtual keyboard is displayed. 7. The device according to claim 6, wherein the determining unit is specifically configured to correspond to the virtual keyboard according to the corresponding relationship between the input letters and the statistical input letters and high-frequency letters in the current text input process. For each row of keys, determine a specified number of high-frequency letters corresponding to the input letters among all the letters corresponding to each row of keys. 8. The device according to claim 7, wherein the display unit is specifically configured to display the row of letter keys in the virtual keyboard in the following manner: Use the screen blank areas on both sides of the row of buttons to display the row of letter buttons of the virtual keyboard; or Use the area where the non-letter keys of the row of keys are located to display the row of letter keys of the virtual keyboard; or According to the text input rules, determine the letter that will not be the first input after the input letter is input; and use the area where the key that will not be the first input letter determined in the row of keys is located, display the row of other letter keys in the virtual keyboard; or According to the corresponding relationship between the input letters and the low-frequency letters of the input letters and statistics, determine the specified number of low-frequency letters corresponding to the input letters in all letters corresponding to the row of keys; narrow down and determine The area where the keys of the low-frequency letters are located displays the keys of the row of letters in the virtual keyboard; And when displaying, the keys of the high-frequency letters determined in the row of keys are enlarged. 9. The device according to claim 8, wherein the display unit is specifically configured to display a virtual other letter keys in the first row of the keyboard; or narrow down the area where the low-frequency letters in the first row of keys are determined to display the first row of letter keys in the virtual keyboard; The keys of the high-frequency letters determined in the keys are amplified; the screen blank areas on both sides of the keys in the second line are used to display the letters keys in the second line of the virtual keyboard; The buttons of the described high-frequency letters are enlarged; utilize the area where the non-letter buttons in the third row of buttons are located to display the row of letter buttons in the virtual keyboard; The keys of frequency letters are enlarged; the layout mode of the letter keys in the virtual keyboard adopts the layout mode of the letter keys of the Qwerty keyboard. 10. The device according to any one of claims 6-9, further comprising: The update unit is configured to update the statistical correspondence between the input letters and the high-frequency letters after the user inputs letters through the letter keys of the displayed virtual keyboard.

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