KR101366528B1 - Method and apparatus for inputting character by modifying mistyped-character using recognition of drag direction - Google Patents

Method and apparatus for inputting character by modifying mistyped-character using recognition of drag direction Download PDF

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Publication number
KR101366528B1
KR101366528B1 KR1020120130040A KR20120130040A KR101366528B1 KR 101366528 B1 KR101366528 B1 KR 101366528B1 KR 1020120130040 A KR1020120130040 A KR 1020120130040A KR 20120130040 A KR20120130040 A KR 20120130040A KR 101366528 B1 KR101366528 B1 KR 101366528B1
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KR
South Korea
Prior art keywords
input
keypad
character
window
signal
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KR1020120130040A
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Korean (ko)
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김지호
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김지호
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1643—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being associated to a digitizer, e.g. laptops that can be used as penpads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • G06F3/0233—Character input methods
    • G06F3/0234—Character input methods using switches operable in different directions
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
    • G06F3/0486—Drag-and-drop
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units

Abstract

The present invention relates to a character input apparatus and a character input method for modifying input characters by recognizing a drag direction of a touch screen, and a character input apparatus for modifying input characters by recognizing a drag direction of a touch screen according to the present invention, A keypad having an input button for inputting characters of a form and being output on a touch screen; A main window for sequentially outputting characters inputted by operating an input button provided in the keypad; When a touch signal is applied to an input button provided on the keypad, a letter assigned to the input button is enlarged and output, and even when the touch signal applied to the input button is released, the character is enlarged until the touch signal is applied to another input button. A sub-window for maintaining the output window; An input signal detection unit for detecting a touch signal applied to an input button of the keypad and a drag signal applied to the keypad in the up, down, left, left, top, bottom, and right top and bottom directions; And when a drag signal applied to the keypad is sensed by the input signal detector, corrects a character output to the sub-window into a specific character adjacent to an input button to which the touch signal is applied in the dragged signal direction on the keypad. And a controller for modifying and outputting a character output at the same time into a specific character.
Therefore, the present invention includes an input signal detection unit that detects the touch signal applied to the keypad and the drag signal in various directions to detect the drag signal on the surface of the keypad when an error occurs in the touch signal applied to the input button of the keypad. A character input device and a character input method capable of increasing the reliability of the input character even if the size of the button image is small by easily modifying the input character assigned to the input button of the keypad and outputted by a specific character adjacent to the drag direction. It is effective to provide.

Description

Character input device and character input method for recognizing drag direction of touch screen and input method {Method and apparatus for inputting character by modifying mistyped-character using recognition of drag direction}

The present invention relates to a character input device and a character input method for modifying input characters by recognizing a drag direction of a touch screen, and more particularly, an input signal detection unit for discriminating and detecting drag signals in various directions applied to a keypad. Character input device and character input method for modifying the input character by recognizing the drag direction of the touch screen, which can easily modify the input character inputted by operating the input button of the keypad output on the touch screen to the specific character of the drag direction It is about.

With the development of industrial technology, various kinds of portable communication terminals have been developed to provide wireless communication for supplying various information to real life.

In the early portable communication terminals, a keypad for inputting characters and a liquid crystal screen for outputting characters have been separately provided, so that when a user presses a character input button formed on the keypad, characters are inputted in a manner that the characters are output on the LCD screen.

However, recently, as the touch screen technology that simultaneously outputs the keypad function on the LCD screen is commercialized, portable communication terminals equipped with touch screens are widely used, and such touch screen technology is used in various computer terminal devices other than the portable communication terminal. It is being gradually applied as an input device.

In addition, in the case of a touch screen mainly used in a portable communication terminal, since the communication terminal is designed to be small for the user to easily carry, a plurality of input buttons forming a keypad output on the touch screen are adjacent to each other to form a small size. It is common to be.

However, in the case of a touch screen applied to a portable communication terminal, since the input button of the keypad is formed in a small size, the contact means contacting the input button is different from the sensing method, and the difference in the proficiency of the user using the touch means is different. If this occurs, an error that a touch signal is frequently applied to an input button neighboring the specific character on the keypad instead of the input button of the specific character that the user wants to input frequently occurs.

In order to solve the above problem, there was a technique of using the entire LCD screen as a virtual keypad by changing the transparency of the keypad when inputting a character using a conventional touch screen. When the input character is duplicated and the transparency of the keypad is high, the keypad disappears on the screen, so it is difficult for a user to select a character to be input, and the life of the battery is significantly reduced due to the virtual keypad.

As described above, in the touch screen technology applied to the conventional portable communication terminal, when the input button of the keypad is formed in a small size or the entire LCD screen is used as the virtual keypad, an error occurs repeatedly even when the user tries to correct it. There was a problem that it is cumbersome to increase the character input time or to correct an incorrectly input neighbor character.

Therefore, when a specific character to be input by a user and a neighboring character are inputted on a touch screen, a realistic and highly available technology that can be easily modified with a specific character is urgently needed.

Patent Publication No. KR 10-1140508 2006.01.24, page 3 <identification number 0011> to page 4 <identification number 0027>, drawing 3, drawing 4

Accordingly, the present invention has been made to solve the above problems, the present invention comprises a touch signal applied to the input button of the keypad having an input signal detection unit for detecting the touch signal applied to the keypad and the drag signal in various directions. To provide a character input device and a character input method that can be applied to the surface of the keypad by applying a drag signal to modify the input character assigned to the input button of the keypad to the specific character in the drag direction when the error occurs. There is this.

In order to achieve the above object, a character input device for modifying a character by recognizing a drag direction of a touch screen according to an embodiment of the present invention includes an input button for inputting various types of characters and is output on the touch screen. Keypad; A main window for sequentially outputting characters inputted by operating an input button provided in the keypad; When a touch signal is applied to an input button provided on the keypad, a character assigned to the input button is enlarged and output, and even when the touch signal applied to the input button is released, the character is enlarged until the touch signal is applied to another input button. A sub-window for maintaining the output window; An input signal detection unit for detecting a touch signal applied to an input button of the keypad and a drag signal applied to the keypad in the up, down, left, left, top, bottom, and right top and bottom directions; And when a drag signal applied to the keypad is sensed by the input signal detector, corrects a character output to the sub-window into a specific character adjacent to an input button to which the touch signal is applied in the dragged signal direction on the keypad. And a controller for modifying and outputting a character output at the same time to a specific character.

According to another aspect of the present invention, a character input method of recognizing a drag direction of a touch screen and correcting a character includes: a first step of displaying a main window on a touch screen; A second step of displaying, on the touch screen, a keypad including two or more input buttons for inputting various types of characters output to the main window; A third step of applying a touch signal to an input button provided in the keypad; A fourth step in which a character assigned to the input button to which the touch signal is applied is output to the output window of the main window and expanded to the output window of the sub window located close to the keypad; In the case of modifying the characters enlarged and displayed on the output window of the sub-window into specific characters adjacent to the input button to which the touch signal is applied, drag signals are applied to the surface of the keypad in the direction of the specific characters adjacent to the input button. 5 steps; A sixth step of detecting a drag signal of a specific character direction adjacent to the input button by an input signal detecting unit; And a seventh step of modifying, by the controller, the characters output to the main window and the sub-window into specific characters in the detected drag signal direction.

As described above, the present invention includes an input signal detection unit that detects the touch signal applied to the keypad and the drag signal in various directions and detects the surface of the keypad when an error occurs in the touch signal applied to the input button of the keypad. A character input device capable of increasing the reliability of the input characters even if the size of the button image is small by easily modifying the input characters assigned to the input buttons of the keypad to the specific characters in the drag direction by applying a drag signal to the keypad; It is effective to provide a text input method.

1 is a configuration diagram schematically showing a character input device for modifying the input character by recognizing the drag direction of the touch screen according to the present invention
2 is a flowchart illustrating a character input method of recognizing a drag direction of a touch screen according to the present invention and correcting an input character.
3 to 5 are views for explaining the character input device and the character input method shown in Figs.

In the present specification, the touch screen is provided on a display such as an organic light emitting diode (OLED), a liquid crystal display device (LCD), etc., capable of displaying an image, and an upper portion of the display. It refers to a device that can detect the contact of the contact means such as a body in a pressure-sensitive, resistive or capacitive manner.

In addition, in the present specification, the touch signal refers to an operation of selecting a character provided from an image of an input button output on a touch screen and an operation of selecting a specific region, and tapping in a boundary and a specific region of each button image. It points out only to the operation of tapping or touching.

In contrast, the drag signal refers to an operation having a continuous trajectory by moving a user in contact with a contact means such as a body part on a touch screen, and the trajectory follows a boundary of a button image and a specific region, or Alternatively, it is used as a concept that is different from a touch operation that crosses a boundary and selects a specific character and a specific region. At this time, the drag signal according to the present invention is preferably divided into different operations according to the movement direction of the trajectory.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the following drawings, components having the same function are denoted by the same reference numerals and repetitive description is omitted. Further, the following terms are defined in consideration of the functions of the present invention, And that it should be construed as a concept and its usual meaning.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a block diagram schematically illustrating a character input device for modifying an input character by recognizing a drag direction of a touch screen according to the present invention.

As shown in Figure 1, the character input device for modifying the input character by recognizing the drag direction of the touch screen according to the present invention, the input of the keypad 10, the keypad 10 is output on the touch screen (1) Main window 20 that outputs characters by operating a button, sub-window 30 in which characters are enlarged and output when a touch signal is applied to an input button, and an input signal detection unit 40 for separately detecting a touch signal and a drag signal. , And a controller 50 for modifying the output input character to a specific character in a drag direction when a drag signal is detected.

In more detail, the keypad 10 includes a consonant button and a vowel button when inputting Korean, and includes a corresponding letter when selecting a foreign language, and various symbols, numbers, and various forms. It is provided with an input button for inputting characters and is output on the touch screen.

In addition, the main window 20 is an output window that allows the user to recognize the contents of the overall output by sequentially outputting the characters input by operating the input button provided on the keypad 10, the sub-window 30 ) Is a magnified output of a character assigned to the input button when a touch signal is applied to the input button provided on the keypad 10 so that the user can more clearly recognize the character input by applying a touch signal to the input button. Even when the touch signal applied to the input button is released, the enlarged output window is maintained until the touch signal is applied to the other input button.

On the other hand, the input signal detecting unit 40 provides a touch area for sensing the touch operation of the contact means 2, such as a body, and a drag area for detecting the drag operation, respectively, the respective touch areas and the drag. Coordinates and trajectories can be read through an area. That is, the touch signal applied to the input button of the keypad 10 and the drag signals applied to the keypad 10 in the up, down, left, right, up, down, left, and right top and bottom directions are distinguished and detected.

Here, the input signal detecting unit 40 detects the inside of the input button boundary of the keypad 10 and the output window of the main window 20 as a touch area and detects the entire surface of the keypad 10 as a drag area. It is desirable to.

In addition, when the drag signal applied to the keypad 10 is detected, the control unit 50 inputs the touch signal applied to the dragged signal direction on the keypad 10 in response to the characters output to the sub-window 30. Modifies the character to be a neighboring specific character of the button and at the same time the character output to the main window 20 is also modified to output a specific character.

2 is a flowchart illustrating a character input method of recognizing a drag direction of a touch screen according to the present invention and correcting an input character.

As shown in the figure, the character input method for modifying the input character by recognizing the drag direction of the touch screen according to the present invention, the first window (S10) is displayed on the touch screen 1 (S10) And a second step S20 of displaying a keypad 10 including two or more input buttons 11 for inputting various types of characters output to the main window 20 on the touch screen 1; When the user manipulates the keypad 10 to input text, a third step S30 of applying a touch signal to the input button 11 provided in the keypad 10 and an input to which the touch signal is applied. The fourth step (S40) in which the letter assigned to the button 11 is outputted to the output window of the main window 20 and simultaneously enlarged to the output window of the sub-window 30 located close to the keypad 10. And, zoom out to the output window of the sub-window (30) The drag signal is applied to the surface of the keypad 10 in the direction of the specific character adjacent to the input button 11 when modifying the converted character into a specific character adjacent to the input button 11 to which the touch signal is applied. A fifth step S50, a sixth step S60 in which a drag signal in a direction of a specific character adjacent to the input button 11 is detected by the input signal detection unit 40, and the main unit by the control unit 50; And a seventh step S70 in which the characters output to the window 10 and the sub-window 30 are modified to specific characters in the detected drag signal direction.

In this case, after the fourth step S40, when the touch signal applied to the input button is released and the touch signal is applied to another input button, the enlarged output window of the sub-window 30 corresponding to the input button disappears. Preferably, the subwindow 30 corresponding to the other input button is newly created.

3 to 5 are views for explaining the character input device and the character input method shown in Figures 1 and 2 according to an embodiment of the present invention.

As shown in Figures 2 and 3, in the embodiment of the present invention to explain the process of the user enters the "PATENT" character, the input button 11 applied to the keypad 1 is a QWERTY type The keyboard was applied.

In addition, the touch area provided by the input signal detecting unit 40 described above is divided along the image boundary of the input buttons 11 constituting the keypad 1 shown in FIG. As illustrated, the left and right regions of the main window 20 divided based on the center line 21 of the main window 20 are also detected as the touch area.

Meanwhile, the drag area provided by the input signal detecting unit 40 covers the entire surface of the keypad 10, and as shown in FIG. 4, a dotted line on the keypad 10 according to the moving direction of the drag operation. The left, right, up, down, left and right diagonal directions and the top, bottom, right and left diagonal directions indicated by the rectangle are detected as drag signals. In this case, in FIG. 4, the dotted rectangle for detecting the drag operation is located at the center of the keypad 10, but according to the present invention, since the dotted rectangle is moved around the input button 11 to which the touch signal is applied, the keypad 10 is moved. ) Drag signal is detected on the whole surface.

Referring to Figures 3 to 5 will be described in detail the character input device and the character input method shown in Figures 1 and 2 as follows.

As shown in FIG. 3, in the embodiment of the present invention, the user uses a part of the body as a contact means in the process of inputting the "PATENT" string, and the last character "T", which is the neighboring character of the button assigned with the letter "T", is used. It is assumed that an error occurs in applying a touch signal to a button to which the letter G "is assigned.

At this time, the string "PATENG" is output to the main window 20, and the letter "G" is enlarged to the sub-window 30 to maintain the enlarged output window even if the touch signal is released to the input button.

In addition, the sub-window 30 is output on the touch screen 1 in close proximity to the outside of the keypad 10 so as not to overlap the plurality of input buttons 11 constituting the keypad 10.

4 shows that a user performs a drag operation on the keypad 10. As shown in Figure 4, when the user performs a drag operation in the ① direction, it can be seen that the input character is modified to "T" located in the drag direction of the "G" character.

As another example, the characters to be modified when the user performs the drag operation in the ② direction to the ⑧ direction are shown in Table 1 below.


② direction

③ Direction
④ Direction
⑤ direction
⑥ direction
⑦ direction
⑧ Direction
"T"
"Y"
"Y"
"H"
"N"
"B"
"V"
"F"

However, as shown in the ② direction embodiment of Table 1, when there is no image clearly distinguishing the boundary of the input button in the direction in which the drag operation is performed, the arrow image displayed in the drag direction is interposed therebetween. Preferably, two neighboring characters are output to the subwindow 30 so that one of the two characters is selected by a touch operation.

At this time, the arrow image indicating the drag direction is not normally displayed, but if the drag signal is detected when the user performs the drag operation, the arrow image may be displayed on the keypad 10 for a while, and the display is input on the keypad 10. The button 11 is darker or thinner than the image so as not to be confused with the image of the input button.

Meanwhile, when a drag signal applied to the keypad 10 is continuously input, the controller 50 applies the final dragged signal direction based on the input button 11 of the keypad 10 to which the touch signal is applied. do. That is, in the exemplary embodiment of the present invention, when the drag signal is sequentially applied to the ① direction, the ⑤ direction, and the ⑧ direction on the keypad 10, the letter “F” is finally input based on the letter “G”.

FIG. 5 illustrates a case where the output window of the main window 20 is detected as the touch area by the input signal detecting unit 40 as described above.

The input signal detecting unit 40 is left and right directions relative to the center line 21 of the output window of the main window 20 when two or more touch signals are sequentially applied to the output window of the main window 20. In this case, the control unit 50 inputs the touch signal detected in the left and right directions of the output window of the main window 20 based on the input button of the keypad 10 to which the touch signal is applied. The left and right directions of the drag signal detected by the signal detecting unit 40 are respectively applied.

Referring to the drawings in more detail, when the user performs a touch operation two or more times in succession in the left and right direction of the center line 21 of the main window 20, as shown in Figure 5, the keypad 10 It is recognized the same as performing the drag operation in the ⑧ direction and ④ direction of the image.

As described above, the present invention includes an input signal detection unit that detects the touch signal applied to the keypad and the drag signal in various directions to detect the drag signal on the surface of the keypad when an error occurs in the touch signal applied to the input button of the keypad. Character input device and character input that can increase the reliability of input characters even if the size of the button image is small by easily modifying the input characters assigned to the input buttons of the keypad and outputting them by applying a signal to neighboring specific characters in the drag direction It has the effect of providing a method.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, It is within the scope of the present invention that component changes to such an extent that they can be coped evenly within a range that does not deviate from the scope of the present invention.


1: touch screen 2: contact means
10: Keypad 11: Input Butt
20: main window 30: sub window
40: input signal detection unit 50: control unit

Claims (6)

A keypad having an input button for inputting various types of characters and being output on a touch screen;
A main window for sequentially outputting characters inputted by operating an input button provided in the keypad;
When a touch signal is applied to an input button provided on the keypad, a letter assigned to the input button is enlarged and output, and even when the touch signal applied to the input button is released, the character is enlarged until the touch signal is applied to another input button. A sub-window for maintaining the output window;
An input signal detection unit for detecting a touch signal applied to an input button of the keypad and a drag signal applied to the keypad in the up, down, left, left, top, bottom, and right top and bottom directions; And
When the drag signal applied to the keypad is detected by the input signal detector, the character output to the sub-window is modified to a specific character adjacent to the input button to which the touch signal is applied in the dragged signal direction on the keypad. And a controller for modifying and outputting the characters output to the main window at the same time as specific characters.
The method of claim 1, wherein the sub-window,
Character input device for modifying the character by recognizing the drag direction of the touch screen, characterized in that the output to the touch screen near the outside of the keypad so as not to overlap the plurality of input buttons constituting the keypad.
The apparatus of claim 1,
When one or more drag signals applied to the keypad are continuously input, the drag direction of the touch screen may be recognized based on an input button of the keypad to which the touch signal is applied. Character input device to modify.
The method according to claim 1,
The input signal detector, when two or more touch signals are continuously applied to the output window of the main window to detect whether the left and the right direction based on the center line of the main window output window, respectively,
The control unit applies the touch signals sensed in the left and right directions of the main window output window in the left and right directions of the drag signal detected by the input signal detector based on the input button of the keypad to which the touch signal is applied. Character input device for modifying the character by recognizing the drag direction of the touch screen, characterized in that.
A first step of displaying the main window on the touch screen;
A second step of displaying, on the touch screen, a keypad including two or more input buttons for inputting various types of characters output to the main window;
A third step of applying a touch signal to an input button provided in the keypad;
A fourth step in which a character assigned to the input button to which the touch signal is applied is output to the output window of the main window and expanded to the output window of the sub window located close to the keypad;
In the case of modifying the characters enlarged and displayed on the output window of the sub-window into specific characters adjacent to the input button to which the touch signal is applied, drag signals are applied to the surface of the keypad in the direction of the specific characters adjacent to the input button. 5 steps;
A sixth step of detecting a drag signal of a specific character direction adjacent to the input button by an input signal detecting unit; And
Characters to modify the character by recognizing the dragging direction of the touch screen, characterized in that it includes; the seventh step of the character is output to the main window and the sub-window by the control unit is modified to the specific character of the detected drag signal direction Input method.
The method of claim 5, wherein after the fourth step in which the character assigned to the input button to which the touch signal is applied is output to the output window of the main window and is enlarged to the output window of the sub window located close to the keypad,
When the touch signal is applied to another input button after the touch signal applied to the input button is released, the enlarged output window of the sub window corresponding to the input button disappears and a new sub window corresponding to the other input button is newly generated. Character input method for modifying the character by recognizing the drag direction of the touch screen.
KR1020120130040A 2012-11-16 2012-11-16 Method and apparatus for inputting character by modifying mistyped-character using recognition of drag direction KR101366528B1 (en)

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WO2018070749A1 (en) * 2016-10-10 2018-04-19 서용창 Keyboard interface providing method and device
KR20230075561A (en) 2021-11-23 2023-05-31 김진환 Real Estate Brokerage Methods and Brokerage Systems

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US20110018812A1 (en) 2009-07-21 2011-01-27 Cisco Technology, Inc. Fast Typographical Error Correction for Touchscreen Keyboards
KR20110071705A (en) * 2009-12-21 2011-06-29 삼성전자주식회사 Image forming apparatus with touch screen and method for editing input letter thereof
KR101141728B1 (en) 2010-10-29 2012-05-03 서울대학교산학협력단 Apparatus and method for inputing characters in small eletronic device

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US20110018812A1 (en) 2009-07-21 2011-01-27 Cisco Technology, Inc. Fast Typographical Error Correction for Touchscreen Keyboards
KR20110071705A (en) * 2009-12-21 2011-06-29 삼성전자주식회사 Image forming apparatus with touch screen and method for editing input letter thereof
KR101141728B1 (en) 2010-10-29 2012-05-03 서울대학교산학협력단 Apparatus and method for inputing characters in small eletronic device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018070749A1 (en) * 2016-10-10 2018-04-19 서용창 Keyboard interface providing method and device
KR20230075561A (en) 2021-11-23 2023-05-31 김진환 Real Estate Brokerage Methods and Brokerage Systems

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