KR20120029951A - Apparatus and method for inputting character - Google Patents

Apparatus and method for inputting character Download PDF

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Publication number
KR20120029951A
KR20120029951A KR1020100092096A KR20100092096A KR20120029951A KR 20120029951 A KR20120029951 A KR 20120029951A KR 1020100092096 A KR1020100092096 A KR 1020100092096A KR 20100092096 A KR20100092096 A KR 20100092096A KR 20120029951 A KR20120029951 A KR 20120029951A
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KR
South Korea
Prior art keywords
keypad
key
touch
initial
neutral
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Application number
KR1020100092096A
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Korean (ko)
Inventor
김정환
하태숙
Original Assignee
주식회사 케이티
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Priority to KR1020100092096A priority Critical patent/KR20120029951A/en
Publication of KR20120029951A publication Critical patent/KR20120029951A/en

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    • 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
    • G06F3/018—Input/output arrangements for oriental characters
    • 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
    • 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
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G06F3/04886—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 by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/401—Circuits for selecting or indicating operating mode
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/048—Indexing scheme relating to G06F3/048
    • G06F2203/04809—Textured surface identifying touch areas, e.g. overlay structure for a virtual keyboard

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

The character input device may include a touch screen for displaying any one of a first keypad, a neutral keypad, and a final keypad with a virtual keypad, a recognition unit for recognizing a touched key of the virtual keypad by a user, and the neutral keypad. And a keypad controller for controlling the touch screen to be switched to the initial keypad or the final keypad according to a touch. According to an embodiment of the present invention, by providing a separate virtual keypad according to the initial, neutral, and final, it is possible to reduce the number of input for Hangul input.

Description

Apparatus and Method for Inputting Character}

The present invention relates to an input device, and more particularly, to a character input device and method using a touch screen.

Mobile devices have limitations in size, so input devices also have limitations. For example, a keypad of a mobile device has a limited number of keys, and in order to increase the number of keys, the size of a button must be reduced, but a small button is difficult to press.

With the spread of mobile communication terminals with a touch screen, a text input method using a virtual keypad on a touch screen has been proposed.

The virtual keypad using the touch screen provides a vowel and a consonant of Korean, so that an input method can be simplified as compared to a keypad using a button.

An object of the present invention is to provide a method and an apparatus for inputting a character by providing a separate virtual keypad by dividing the initial, neutral, and vertical properties.

According to an aspect of the present invention, a touch screen for displaying any one of the initial keypad, the neutral keypad and the final keypad as a virtual keypad, wherein the final keypad includes at least one consonant key not present in the initial; A character input device including a keypad controller for controlling the touch screen to switch to the initial keypad or the final keypad according to a user's touch while the recognition keypad recognizes the touched key of the virtual keypad. do.

According to another aspect of the present invention, in a method of receiving a text input by the character input device, displaying the initial keypad, detecting the touch of the initial keypad, when the character key of the initial keypad is touched, displays the neutral keypad A step of sensing a touch of the neutral keypad is provided, a character input method comprising the step of displaying a vertical keypad and detecting the touch of the vertical keypad, when the vertical switch key of the neutral keypad is touched.

According to an embodiment of the present invention, by providing a separate virtual keypad according to the initial, neutral, and final, it is possible to reduce the number of input for Hangul input.

1 is a diagram illustrating a character input device according to an embodiment of the present invention.
2 is a diagram illustrating a virtual keypad of a character input apparatus according to an embodiment of the present invention.
Figure 3a is a diagram illustrating a sound pad keypad displayed by the character input device according to an embodiment of the present invention.
Figure 3b is a diagram illustrating a double consonant keypad displayed by the character input device according to an embodiment of the present invention.
4 is a flowchart illustrating a character input method of a character input apparatus according to an embodiment of the present invention.
5 is a diagram illustrating a process of switching the initial keypad by the character input device according to an embodiment of the present invention.

The present invention may be variously modified and have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail with reference to the accompanying drawings. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In describing the present invention, when it is determined that the detailed description of the related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, numerals (eg, first, second, etc.) used in the description process of the present specification are merely identification symbols for distinguishing one component from another component.

Also, in this specification, when an element is referred to as being "connected" or "connected" with another element, the element may be directly connected or directly connected to the other element, It should be understood that, unless an opposite description is present, it may be connected or connected via another element in the middle.

Character input device according to an embodiment of the present invention provides a virtual keypad. The virtual keypad is a keypad displayed as visual information to the user through the touch screen. The user may input characters by touching the virtual keypad displayed on the touch screen. The character input device may be provided by switching to any one of a plurality of virtual keypads through a touch screen, and includes a key code indicating a character matched to a key included in each virtual keypad, coordinates indicating a position of each key, Virtual keypad information including an image may be stored. Each virtual keypad may include a letter key matched with one or more characters (consonants or vowels) and a switch key for switching the virtual keypad.

Hereinafter, a character input device using a virtual keypad will be described with reference to the drawings.

1 is a diagram illustrating a character input device according to an embodiment of the present invention.

Referring to FIG. 1, a text input device according to an embodiment of the present invention includes a touch screen 110, a recognizer 120, a keypad controller 130, and a storage 140.

The touch screen 110 may include a display unit and a touch panel.

For example, when the mobile terminal is in a call mode, the display unit may display a user interface (UI) or a graphic user interface (GUI) related to a call.

The touch panel is provided on one surface of the display unit and senses a touch and generates a touch signal. In more detail, when the touch is started or terminated (pressed or released), the touch panel may detect a change in physical quantity (pressure or capacitance) accordingly and detect the occurrence of the touch. The touch panel may generate a touch signal using a change amount of a physical quantity.

Here, the touch signal may include location information of a point at which the touch starts or ends and information indicating the start or end of the touch.

The recognition unit 120 receives a touch signal from the touch screen 110 and detects a key corresponding to the touch signal. That is, the touch screen 110 transmits a touch signal to the recognition unit 120 according to a user's touch input, and the recognition unit 120 refers to the received touch signal by referring to the coordinates of each key included in the virtual keypad information. Detect the corresponding key. The recognition unit 120 may output a key code corresponding to the detected key to the keypad controller 130 and an external device.

The keypad controller 130 selects a virtual keypad to be displayed on the touch screen 110 according to the key code received from the recognizer 120, and controls the selected virtual keypad to be displayed on the touch screen 110. That is, when the received key code is a code corresponding to the switching of the keypad, the keypad controller 130 loads the virtual keypad information corresponding to the corresponding code from the storage 140 and displays the corresponding virtual keypad. 110).

The storage unit 140 stores the virtual keypad information. At this time, the storage unit 140 stores virtual keypad information corresponding to the flat keypad 210, the neutral keypad 220, the final keypad 230, the sound pad keypad 305, and the double consonant keypad 307.

The flat keypad 210 includes one or more keys corresponding to the flat sound of the consonants. The pad keypad 305 is a keypad in which some keys of the flat keypad 210 are replaced with pads. Also, the consonant keypad 307 is a keypad in which some keys of the flat keypad 210 are replaced with the consonants. In this case, the flat keypad, the pad keypad 305 and the double consonant keypad 307 are keypads including a consonant, which will be collectively referred to as a consonant keypad.

The initial keypad may further include a switch key for instructing the switch of the keypad to the special character. The special character keypad is a keypad containing one or more keys corresponding to the special character. In addition, the initial keypad may further include a line break key corresponding to a line break of the cursor, a blank key corresponding to an input of a space, and an erase key corresponding to an input for deleting an input character.

Neutral keypad 220 includes one or more keys corresponding to a combination of initial and neutral characters. Of course, the neutral keypad 220 according to an embodiment of the present invention may include a key indicating only neutral without being limited thereto. At this time, when the neutral keypad 220 represents a combination of the initial and the neutral, the neutral keypad 220 corresponding to each initial may be stored in the storage 140 in advance. The neutral keypad 220 also includes an initial switch key 240 and a vertical switch key 250 that are virtual keys for switching from the neutral keypad 220 to the initial keypad or the final keypad 230.

The final keypad 230 includes one or more keys corresponding to characters that may be located in the finality of the Hangul. Final keypad 230 may include a completion key 290 indicating completion of the final input.

2 is a diagram illustrating a virtual keypad of a character input apparatus according to an embodiment of the present invention.

Referring to FIG. 2, the keypad controller 130 of the character input apparatus according to an embodiment of the present invention may control the touch screen 110 to basically display the flat keypad 210 as the initial keypad.

When the user makes a touch on the touch screen 110 in which the flat keypad 210 is displayed, the recognition unit 120 detects a key touched by the user. For example, when a user's touch occurs in an area where the 'a' key of the flat keypad 210 is displayed, the touch screen 110 transmits a touch signal to the recognition unit 120, and the recognition unit 120 is a flat sound. The virtual keypad information of the keypad 210 is used to detect which key corresponds to the corresponding location information. The recognition unit 120 transmits a code corresponding to the detected key to the keypad controller 130. In addition, when the detected key is a character key, the recognition unit 120 may output a key code corresponding to the corresponding key to the outside.

In this case, the recognition unit 120 may output a key code corresponding to the corresponding key to the keypad controller 130 and the external device at the end of the touch of the virtual keypad. That is, when the recognition unit 120 receives the touch signal according to the user's touch start and then receives the touch signal according to the user's touch termination, the recognition unit 120 inputs a key code corresponding to the corresponding key to the keypad controller 130 and the external device. Can be printed as

In addition, the recognition unit 120 may continuously output a code corresponding to the touched key when the user maintains the state of touching the virtual keypad (holding state) for a specified time or more. For example, as the user starts to touch the 'a' key, the touch screen 110 outputs a touch signal to the recognizer 120, and the recognizer 120 counts from the time when the touch signal is received. To start. If the recognition unit 120 does not receive the touch signal according to the end of the touch for a predetermined time, it may output the same code as continuously input 'a' as 'a a'.

 The keypad controller 130 switches the initial keypad to the neutral keypad 220 when the key code received while providing the initial keypad is a code corresponding to a character key. That is, when the keypad control unit 130 receives the key code as the input of the touch on the character key corresponding to the initial consonant is terminated while the initial keypad is displayed, the virtual keypad 220 may be moved from the initial keypad to the neutral keypad 220. Switch to

When the keypad control unit 130 is providing the initial keypad and the received code is a code corresponding to the squeak key 262 or the consonant key 264, the keypad controller 130 is the squeak keypad 305 or the pair. The consonant keypad 307 may be displayed on the touch screen 110. The horn keypad 305 and the dipole keypad 307 will be described in detail later with reference to FIG. 3. When the keypad controller 130 switches the virtual keypad, the keypad controller 130 may transmit identification information of the switched virtual keypad to the recognition unit 120. The recognition unit 120 may check the virtual keypad currently displayed by the identification information received from the keypad control unit 130.

When the initial switch key 240 is touched while the neutral keypad 220 is displayed, the keypad controller 130 may display the flat keypad 210. That is, when the user touches the initial switching key 240 on the touch screen 110 on which the neutral keypad 220 is displayed, the touch screen 110 transmits a touch signal to the recognition unit 120. When the touch of the initial switching key 240 of the neutral keypad 220 occurs, the recognition unit 120 transmits a null code indicating that there is no finality to the external device. In addition, the recognition unit 120 transmits a key code corresponding to the initial switching key 240 to the keypad control unit 130. At this time, the keypad controller 130 controls the touch screen 110 to display the flat keypad 210 in accordance with the received key code. The present invention is not limited thereto, and the keypad controller 130 may use a recently used initial keypad (flat keypad 210, rhythm keypad 305, or double consonant keypad 307) when the initial switching key 240 is touched. I can display it.

When the final conversion key 250 is touched, the keypad controller 130 may display the final keypad 210. That is, when the user touches the vertical switching key 250 on the touch screen 110 on which the neutral keypad 220 is displayed, the touch screen 110 transmits a touch signal to the recognition unit 120. The recognition unit 120 transmits a key code corresponding to the terminal switch key 240 to the keypad controller 230. The keypad controller 130 controls the touch screen 110 to display the terminal keypad 230 according to the received key code.

When the user touches the neutral keypad 220 and receives a key code corresponding to the neutral from the recognition unit 120 (when the user touches the neutral key corresponding to the neutral vowel), the keypad controller 130 The touch screen 110 is controlled to maintain the display of the neutral keypad 220. In this case, when a touch on the same key occurs continuously and receives a touch signal corresponding to the same key from the touch screen 110, the recognition unit 120 matches a key code corresponding to the corresponding key of the neutral keypad 220. Key codes other than the recently output key codes are transmitted to the keypad controller 130 and the external device.

For example, the recognition unit 120 that receives the touch signal corresponding to the key 270 of the neutral keypad 220 may transmit a key code corresponding to 'ㅙ' to the keypad control unit 130 and the external device. At this time, when the touch of the key 270 of the neutral keypad 220 occurs again to receive a touch signal, the recognition unit 120 transmits a key code corresponding to 'ㅚ' to the keypad control unit 130 and the external device. Can transmit

When receiving a touch signal corresponding to a character key of the final keypad 230 from the touch screen 110, the recognition unit 120 may output a key code corresponding to the corresponding key to an external device. In this case, the recognition unit 120 may perform the recognition on the plurality of final keys matched with the same key of the final keypad 230 by the method of the neutral keypad 220 described above. For example, the recognition unit 120 receives a touch signal according to the touch of the key 280, and outputs a key code corresponding to 'a' of the key 280 to the external device. At this time, when the recognition unit 120 receives the location information according to the touch of the key 280 again, it may output a key code corresponding to the 'b' of the key 280 to the outside.

When the completion key 290 is touched after inputting the finality, the recognition unit 120 transmits a key code corresponding to the completion key to the keypad controller 230.

When the keypad controller 230 receives a key code corresponding to the completion key, the keypad controller 230 controls the touch screen 110 to display the initial keypad.

If the user touches the keys in the order of 260, 270, 250, 280, and 280, the recognition unit 120 outputs codes corresponding to 'B', 'ㅙ', 'ㄱ', 'B' in order. In addition, the external device may combine this to determine 'ok' as the input character. That is, the external device may recognize the letters input by the user in the order of "a", "ru", "" E ", and" okay ".

Although the above-described keypad control unit 230 has been described as switching the virtual keypad when the touch end of the key corresponding to the character input of the initial keypad, the initial switching key 240 and the final switching key 250 are touched, the keypad control unit has been described. 230 may switch the virtual keypad when the touch of the character key of the user's virtual keypad is maintained for a specified time or more.

For example, the recognizer 120 counts a time after a point in time at which the touch signal corresponding to the user's touch with respect to the character key of the initial keypad 210 is received. The recognition unit 120 may transmit a key code corresponding to the corresponding key to the external device when the touch signal corresponding to the touch end is not received for a specified time. At this time, the recognition unit 120 transmits a switch code for requesting a keypad switch to the keypad controller 230. The keypad controller 230 may convert the virtual keypad into the neutral keypad 220 according to the switching code.

At this time, when the touch signal corresponding to the end of the user's touch on the character key is received within a specified time, the recognition unit 120 outputs a key code corresponding to the character key to the external device. In this case, since the keypad controller 230 does not receive the switch code from the recognizer 120, the keypad controller 230 maintains the virtual keypad without switching.

The recognition unit 120 counts the time from the time when the touch signal received by the user touching the text key on the neutral keypad 220. When the recognition unit 120 does not receive a touch signal corresponding to the touch end for a predetermined time, the recognition unit 120 transmits a key code corresponding to the character key corresponding to the neutral to an external device, and transmits a switching code to the keypad control unit 230. do.

When the neutral keypad 220 is displayed, the keypad controller 230 may switch the virtual keypad to the final keypad 230 when receiving the switch code. Alternatively, when the keypad controller 230 receives the switch code, the keypad controller 230 may switch the virtual keypad to the initial keypad.

The recognition unit 120 counts the time from the time point at which the touch signal is received by the user touching the character key on the final keypad 230. When the recognition unit 120 does not receive a touch signal corresponding to the touch end for a predetermined time, the recognition unit 120 transmits a key code corresponding to the character key corresponding to the neutral to an external device, and transmits a switching code to the keypad control unit 230. do.

When the neutral keypad 220 is displayed, the keypad controller 230 may switch the virtual keypad to the initial keypad when receiving the switch code.

Of course, in the configuration in which the virtual keypad is switched as the touch is maintained, the configuration in which the input of the corresponding key is continuous by the touch of the key may be excluded.

3A is a diagram illustrating a sound pad keypad 305 displayed by a text input device according to an embodiment of the present invention, and FIG. 3B is a double consonant keypad 307 displayed by a text input device according to an embodiment of the present invention. ) Is a diagram illustrating.

When the key code 262 is received in the flat keypad 210 illustrated in FIG. 2 when the key code is touched, the keypad controller 230 controls the touch screen 110 to display the key pad 305. Sound pad keypad 305 includes letter keys corresponding to the sound sound (eg, 'ㅋ', ', ㅌ', '' ',' ㅊ '), flat sound key 310 and double consonant key 264. do. When the flat key 310 is touched to receive the key code, the keypad controller 230 may display the flat keypad 210.

When the key code corresponding to the double consonant key 264 is received at the flat keypad 210 and the sound pad keypad 305, the keypad controller 230 controls the touch screen 110 to display the double consonant keypad 307. do. The double consonant keypad 307 may include a letter key, a septum key 262, and a flat key 310 corresponding to the double consonants.

The process of switching the virtual keypad from the sound pad keypad 305 or the dipole keypad 307 to the neutral keypad 220 is the same as that of the flat keypad 230. That is, the keypad controller 230 may display the neutral keypad 210 according to the initial selection of the sound pad keypad 305 or the double consonant keypad 307.

4 is a flowchart illustrating a character input method of the character input apparatus according to the first embodiment of the present invention. Hereinafter, each step is a process performed by the functional unit included in the character input apparatus, but the subject is collectively described as a character input apparatus for clarity.

In operation 410, the character input device displays an initial keypad. In this case, the initial keypad may be any one of the flat keypad 210, the hard keypad 305, and the double consonant keypad 307.

In operation 420, the text input device receives a user input of touching the initial keypad.

In operation 430, the text input apparatus determines whether the user's input is an input of touching a text key. In FIG. 4, the process of steps 410 to 430 is omitted by omitting the switching process between the flat keypad, the pad keypad 305, and the double consonant keypad 307. Subsequently, the process of steps 410 to 430 will be described in detail with reference to FIG. 5.

In operation 440, the character input apparatus outputs a code corresponding to the character key to the outside and displays the neutral keypad 220 in operation 420.

In operation 450, the text input device receives a touch input on a neutral keypad by a user.

In operation 460, the character input apparatus determines whether the user's touch input in operation 450 is touched by a key among the initial switching key, the vertical switching key, and the character key.

When the text key is touched in step 450, the text input apparatus repeats the process from step 440. In this case, the character input apparatus outputs a code corresponding to the character key touched in step 440 to the outside.

When the initial switching key is touched in step 450, the character input device outputs a null code in step 465, and repeats the process from step 410.

When the terminal switch key is touched in operation 450, the character input device displays the terminal keypad in operation 470.

In operation 480, the character input apparatus receives an input for touching a character key and a completion key from a user.

In operation 490, the character input apparatus outputs a code of the character key touched in operation 480 to the outside.

5 is a diagram illustrating a process of switching the initial keypad by the character input apparatus according to the first embodiment of the present invention.

Referring to FIG. 5, in operation 510, the character input device displays a flat keypad.

In operation 520, the text input device receives a touch input on the flat keypad.

In operation 530, the character input apparatus checks which key the user touched in operation 520.

If it is determined in step 530 that the user has touched the twin consonant key, in step 540 the character input device displays the twin consonant keypad 307 and repeats the process from step 520.

When it is determined in step 530 that the user has touched the sound key, the character input device displays the sound keypad 305 in step 550, and repeats the process from step 520.

When it is determined in operation 530 that the user touches the flat key, the character input apparatus repeats the process from step 510.

When it is determined in step 530 that the user has touched the initial key, the character input apparatus outputs the code of the first key touched in step 440 to the outside and displays the neutral keypad.

Since the process after step 440 is the same as the process of FIG. 4, a description thereof will be omitted.

6 is a flowchart illustrating a character input method of the character input apparatus according to the second embodiment of the present invention.

In operation 610, the character input device displays an initial keypad. In this case, the initial keypad may be any one of the flat keypad 210, the hard keypad 305, and the double consonant keypad 307.

In operation 620, the character input apparatus receives a user input of touching the initial keypad.

In operation 630, the character input apparatus determines whether a touch on the character key is maintained for a specified time.

If the touch on the text key is maintained for the specified time in step 630, the text input apparatus performs step 640.

If the touch on the text key is not maintained for a specified time in step 630, a code corresponding to the touched text key is output to the external device in step 635, and then step 610 is performed.

In operation 640, the character input apparatus outputs a code corresponding to the initial key to the external device in operation 420, and displays the neutral keypad 220.

In operation 650, the text input device receives a touch input on the neutral keypad by the user.

In operation 660, the character input apparatus checks whether the user's touch input in operation 650 is touched by one of the initial switching key, the vertical switching key, and the neutral key.

If it is determined in step 660 that the user has touched the text key, in step 663 the text input apparatus determines whether the touch on the text key has been maintained for a specified time.

If it is determined in step 663 that the touch on the character key is maintained for a specified time, in step 664 the character input device outputs a key code corresponding to the key in which the touch of step 650 is maintained to the external device.

If it is determined in step 663 that the touch on the neutral key is not maintained for a specified time, the character input apparatus performs step 640.

In operation 670, the character input apparatus displays a terminal keypad and receives a user's touch input.

In operation 680, the character input apparatus determines whether the touch on the character key is maintained for the designated time in the touch input of operation 670 for the designated time.

When the touch on the text key is maintained in the touch input of step 670, the text input apparatus performs a process after step 664.

If the touch on the character key is not maintained in the touch input of step 670, the character input device outputs a code of the character key in step 690.

FIG. 6 illustrates a process for inputting a syllable character. In operation 690, the process for inputting the next syllable may be performed after the operation 690.

So far I looked at the center of the embodiment for the present invention. Many embodiments other than the above-described embodiments are within the claims of the present invention. Those skilled in the art will appreciate that the present invention can be implemented in a modified form without departing from the essential features of the present invention. The disclosed embodiments should, therefore, be considered in an illustrative rather than a restrictive sense. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the present invention.

Claims (13)

A touch screen for displaying any one of an initial keypad, a neutral keypad, and a final keypad as a virtual keypad, wherein the final keypad includes at least one consonant key not in the initial;
Recognizing unit that recognizes the touched key of the virtual keypad by the user
And a keypad controller configured to control the touch screen to switch to the initial keypad or the final keypad according to a user's touch while the neutral keypad is displayed.
The method according to claim 1,
And the neutral keypad comprises an initial switching key and a vertical switching key.
The method of claim 2,
And the keypad controller controls the touch screen to display the initial keypad according to the touch of the initial switching key.
The method of claim 3,
And the recognition unit outputs a code corresponding to the terminal type of the character currently being input as a null code according to the touch of the initial conversion key.
The method of claim 2,
And the keypad controller controls the touch screen to display the terminal keypad according to the touch of the terminal switch key.
The method according to claim 1,
And the recognition unit continuously outputs a code corresponding to the character key when the touch on the character key of the virtual keypad is maintained for a specified time or more.
The method according to claim 1,
And the keypad control unit controls the touch screen to display the initial keypad or the final keypad when the touch of the text key included in the neutral keypad is maintained for a specified time or more.
The method according to claim 1,
The neutral keypad is a character input device, characterized in that the virtual keypad including a key corresponding to the combination of the initial and the neutral letters corresponding to the touch on the initial keypad.
In the character input device receives the character input,
Steps to Display the First Keypad
Detecting a touch of the initial keypad
Displaying a neutral keypad when a character key of the initial keypad is touched;
Detecting a touch of the neutral keypad
Displaying a vertical keypad when the vertical switching key of the neutral keypad is touched; and
Sensing a touch of the terminal keypad.
10. The method of claim 9,
After detecting the touch of the neutral keypad,
And displaying the initial keypad when the initial switch key of the neutral keypad is touched.
10. The method of claim 9,
And the neutral keypad is a virtual keypad including a key corresponding to a letter combining a initial and a neutral corresponding to a touch on the initial keypad.
10. The method of claim 9,
Displaying the neutral keypad
Displaying the neutral keypad when the touch of the character key is maintained for a specified time or more;
Displaying the initial keypad or the final keypad when the touch of the character key of the neutral keypad is maintained for a specified time; and
And displaying the initial keypad when the touch of the character key of the final keypad is maintained for a specified time or more.
10. The method of claim 9,
And the neutral keypad is a virtual keypad including a key corresponding to a letter combining a initial and a neutral corresponding to a touch on the initial keypad.
KR1020100092096A 2010-09-17 2010-09-17 Apparatus and method for inputting character KR20120029951A (en)

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