KR20100086450A - Apparatus and method for inputing characters of terminal - Google Patents

Abstract

PURPOSE: An apparatus and a method for inputting characters of a terminal are provided to enable a user to rapidly and conveniently input desirable characters by enlarging the extensive keyset including characters. CONSTITUTION: A controller waits for key touch from a user(801), and confirms key input through the extensive keyset or basic keyset(803). The controller judges whether or not the inputted key is a character key(805). If so, the controller confirms whether or not the character corresponding to the inputted key can be combined with the character corresponding to the previously inputted key(809). If so, the controller combines the character corresponding to the inputted key with the character corresponding to the inputted key.

Description

Character input device and method of terminal {APPARATUS AND METHOD FOR INPUTING CHARACTERS OF TERMINAL}

The present invention relates to a character input device and a method of a terminal, and more particularly, to an apparatus and method for inputting a character through a touch screen of the terminal.

The personal terminal is a term for all portable small terminals, and includes a PDA (Personal Data Assistant), a wireless communication terminal, an MP3 player, a Bluetooth device, a digital camera, and the like.

Generally, PDA is equipped with various software and peripherals based on the central processing unit (CPU), memory, operating system (OS), and operating system that are the basis of the computer, and performs information collection, storage, creation, and retrieval functions. In recent years, the mobile phone module has been developed to enable a voice call and data communication (using the Internet).

In general, a PDA includes a touch screen, which is composed of a display such as an LCD (Liquid Crystal Display) and a touch panel installed thereon. The user executes an application by touching an icon displayed on the touch screen with a finger or a pointer, or touches a touch keyboard displayed on a predetermined area on the touch screen to input characters and the like.

1 is a view showing a general keyboard arrangement of the touch keyboard arrangement of the conventional terminal.

The touch screen of the terminal includes a touch keyboard area including keys for text input, and a display area for displaying a letter corresponding to a key input through the touch keyboard area, and the touch keyboard includes a general personal computer (Personal). The keyboard arrangement method of a computer (PC) is applied.

In the case of applying the conventional general keyboard arrangement method as shown in FIG. 1, the size of the touch keyboard implemented in the touch screen is inevitably reduced due to the limited size of the touch screen. As a result, the size of each key of the touch keyboard is also reduced, and it is inconvenient to see and inconvenient to touch.

Accordingly, a method for facilitating text input using the touch screen of the terminal is required.

The present invention provides a character input device and method for inputting a character on the touch screen of the terminal to facilitate character input.

An apparatus for inputting a character in a terminal according to the present invention includes a basic key set including a plurality of predetermined basic consonant keys, a first consonant corresponding to a first consonant key selected from among the basic consonant keys through the basic key set; A touch screen for displaying an extended key set including a plurality of second character keys disposed on basic consonant keys adjacent to the first consonant key, and when the first consonant key is received through the basic key set; And a controller for controlling the touch screen to display an extended key set, and receiving at least one character through the extended key set. A touch keyboard for displaying the basic key set is formed below the touch screen. The upper portion of the display unit for displaying a character input by the touch keyboard is formed, a portion of the expansion keyset Characterized by a group shown on the display unit.

In addition, the method for inputting a character in the terminal according to the present invention, the process of displaying a basic key set including a plurality of predetermined basic consonant keys on the touch screen, and the first consonant keys of the basic consonant keys through the basic key set And receiving an extension keyset including a plurality of second character keys disposed on character keys adjacent to the first consonant key, wherein the characters associated with the first consonant corresponding to the selected first consonant key are selected. And displaying at least one character key of the second character keys through the extended key set, and a touch keyboard for displaying the basic key set is formed below the touch screen. And a display unit configured to display a character input by the touch keyboard at an upper portion of the touch screen, and a portion of the extension keyset is It is characterized by being displayed on the display.

The present invention can facilitate the input of characters by displaying an extended key set including the next inputtable characters for a key input on the touch screen.

In addition, the present invention enlarges and displays an extended key set including the next inputtable characters in a terminal of a small screen, so that the user can easily input a desired character quickly.

In addition, the present invention can reduce the character input time because the character input pointing process is reduced than the character data input process of the conventional terminal.

In addition, the present invention can minimize the number of character keys arranged on the initial input screen through the touch screen by using the extended key set in the terminal.

1 is a view showing a general keyboard arrangement of the touch keyboard arrangement of the conventional terminal;
2 is a block diagram illustrating a character input device using a touch screen according to an embodiment of the present invention;
3A and 3B illustrate a text input method using a touch screen according to a first embodiment of the present invention;
4A and 4B illustrate a text input method using a touch screen according to a first embodiment of the present invention;
5A and 5B illustrate a text input method using a touch screen according to a third embodiment of the present invention;
6A to 6D are diagrams illustrating a text input method using a touch screen according to a fourth method according to a first embodiment of the present invention;
7 is a view showing a character input method using a touch screen according to a fifth embodiment of the present invention;
8 is a flowchart illustrating a text input method using a touch screen according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description of preferred embodiments of the present invention will be given with reference to the accompanying drawings. In the following description of the present invention, 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.

The main subject of the present invention is to input characters using a touch keyboard that facilitates text input in a terminal having a touch screen, and displays the minimum keys on the touch screen to input characters, and the minimum keys. When one of the keys is inputted, keys that can be combined with the inputted key are displayed.

In the present specification, a specific example of a touch keyboard including consonants or vowels will be referred to. However, keys arranged on the touch keyboard may be changed according to the frequency of use or purpose of each key, and other key arrangements may be used. In addition, the method of inputting Korean and English among the method of inputting a character will be described, but the embodiment of the present invention can be applied to any language as long as the character has a vowel and a consonant.

Hereinafter, in the present specification, an initial screen of a touch keyboard including at least minimum keys on a touch screen is defined as a 'basic key set', and a screen of keys that can be combined with a key input through the basic key set is defined as an 'extension key set'. This will be described. Here, the extension keyset and each key of the extension keyset have a predetermined size. The predetermined size for the extension keyset is such that there is no inconvenience to point other keys through the basic keyset, and the predetermined size for each key of the extension keyset should not be inconvenient for pointing from the user. It means the size of the degree. For example, the extension key set may be enlarged and displayed on a key input through the basic key set, and may be displayed in the same size as the area of the input key. In addition, each key included in the extension keyset may have the same size as each key included in the basic keyset.

2 is a block diagram illustrating a character input device using a touch screen according to an embodiment of the present invention.

Referring to FIG. 2, a character input device according to an embodiment of the present disclosure may include a touch screen 210, an input sensing unit 230, and a controller 250 including a touch keyboard area and a display area, which are not shown. Include.

The touch screen 210 displays a basic key set or a combination of the basic key set and the extended key set under the control of the controller 250, and displays characters input through the basic key set or the extended key set on the display area.

The input detector 230 detects a touch and drag and drop (touch movement) of a specific key through the touch screen 210 and transmits it to the controller 250. Here, as an example, the input detection unit 230 is whether the specific key is touched by the pointer or the touch is not released for a predetermined time after being touched by the pointer, or the pointer is dragged. The touch and the drag and drop (touch movement) are detected by detecting whether the end is dropped or whether the pointer is dragged in a specific area without being released for a predetermined time.

The controller 250 may display a character or a function (eg, space, <-(Back)) or a combination thereof corresponding to a specific key detected through the input detector 230 on the touch screen 210. In addition, the controller controls the basic key set or a combination of the basic key set and the extended key set to be displayed on the touch screen 210.

A text input method according to the first to fifth embodiments performed by the controller 250 will be described with reference to the following drawings.

The character input method according to the first embodiment of the present invention displays a basic key set including all consonant keys that can be initially inputted on the touch screen 210 for character input, and one consonant key through the basic key set. When is input, the extended consonant key including the input consonant key and the vowel keys combinable with the input consonant key is displayed. Here, the vowel keys included in the extended key set are vowel component keys according to the Korean input method.

3A and 3B are diagrams illustrating a text input method using a touch screen according to a first embodiment of the present invention.

Referring to FIG. 3A, a touch keyboard arranged in a keyboard arrangement method of a PC is configured on a touch screen 210 of a terminal at the beginning of text input, and a user inputs a specific key (or an arbitrary point) on a touch keyboard to input text. ), The basic key set 300 including all the consonant keys and the function input area 310 including the function keys other than the consonant keys are enlarged and displayed on the touch keyboard to input characters. For example, when a user wants to input Korean, when a specific key on the touch keyboard is touched, the basic key set 300 and the function input area 310 are enlarged and displayed on the touch screen 210. Here, the positions of the basic keyset 300 and the function input area 310 on the touch screen 210 are not limited to those shown, and may be attached or separated.

'키를 자음키들과 함께 포함하여 사용자가 기본키셋(300)을 터치하여 원하는 문자를 입력하거나 띄어쓰기를 입력하는 것이 가능하다. The primary key set 300 is a key serving as a space bar '

Including the 'key together with the consonant keys, it is possible for the user to touch the basic keyset 300 to enter a desired character or to enter a space.

The touch keyboard may be configured of only the basic key set 300, and may further include the function input area 310. The function input area 310 may include special characters other than Korean ('.', ',', '?', '!', Etc.) or function keys (numeric keys, special keys, enter keys, character conversion keys, etc.). Is implemented so that the user can input the special characters, symbols or functions, such as Hangul.

As another example, instead of initially displaying the touch keyboard arranged by the keyboard arrangement of the PC, the basic keyset 300 and the function input area 310 are directly displayed on the touch screen 210 of the terminal. You can receive text.

키들을 포함한다.Referring to FIG. 3B, the basic key set 300 is composed of all consonant keys that can be input by initial consonant, and the user finds a consonant to be input in the basic key set 300 and touches or touches the corresponding key with a point. If the pointer is not released for a predetermined time, the consonant to be input is input, and the expansion key set 330 is displayed on the input key. That is, the basic key set 300 for inputting Korean characters is 도, ㅉ, ㄸ, ㄲ, ㅆ, ㅂ, ,, ㅆ, ,, ㅅ, ㅁ,, ㅇ, ㄹ, ㅎ, ㅋ, ㅌ, ,, ,,

Contains the keys.

In another embodiment, the expansion key set 330 may be displayed on another location on the touch keyboard area or on the display area of the touch screen. The extended key set 300 is a vowel component key that can be combined with a consonant corresponding to the input key and a consonant corresponding to the input key, and used as a ',', '-', '· 'Contains keys. For example, when the user touches the 'ㅁ' key through the basic key set 300, the extension includes the 'ㅁ', 'ㅣ', 'ㅡ', '·' keys on the touched 'ㅁ' key. Keyset 330 is displayed.

On the other hand, in the basic keyset 300, the area of the consonant (ㅃ, ㅉ, ㄸ, ㄲ, ㅆ) key may be configured smaller than the area of the other key. The extended keyset 330 for the consonant key may be displayed on another key. As an example, the extension keyset 300 for ㅃ is displayed on the ㅂ key without inconvenience to point. As another example, the extended keyset 300 for ㅉ is displayed on the associated terminal tone key.

When a user touches or drags one vowel element key through the extension key set 330, the vowel element corresponding to the input vowel element key is combined with a consonant corresponding to the input key to the touch screen. Is indicated at 210.

For example, if a user wants to input 'large', the user finds the 'c' key in the basic keyset 300 displayed on the touch keyboard to input the consonant 'c' of the 'large' and touches the point with the point. Alternatively, if the pointer is not released after a touch for a predetermined time, the consonant 'c' is displayed on the touch screen 210, and the extended keyset 330 as shown in the example of FIG. 3b with respect to the 'c' key on the touch keyboard. Is displayed. The extended key set 330 waits for the next input of the user, and inputs the vowel component keys included in the extended key set 'l'-> '·'-> 'l' for the user to input the vowel 'ㅐ'. If you touch sequentially or drag continuously without releasing the pointer, the character 'large' is displayed on the touch screen 210. In another embodiment, after the user touches the 'c' key on the basic keyset 300 with the pointer, only the vowel component keys in the extended keyset 330 are 'l'-> '·'-> 'l' in order. When dragging and dropping, the character 'large' is displayed on the touch screen 210. The extended key set 330 for the 'c' key is not displayed on the basic keyset 300 when another consonant key is input or 'c' displayed on the display area of the touch screen 210 is deleted.

As another example, when the consonant 'ㄸ' is input, the 'ㄸ' key may be input through the basic key set 300, and after the 'c' key is input through the basic key set 300, the extended key set 330 may be input. You can enter the 'ㄸ' key by re-keying the 'ㄷ' key.

The character input method according to the second embodiment of the present invention displays a basic key set including all consonant keys that can be input into the initial consonant on the touch screen 210 for character input, and one consonant key through the basic key set. When is input, the extended consonant key including the input consonant key and the vowel keys combinable with the input consonant key is displayed. Here, the vowel keys included in the extended key set are vowel component keys according to the mapping input method.

4A and 4B are diagrams illustrating a text input method using a touch screen according to a first embodiment of the present invention.

The touch keyboard of the terminal includes a basic key set 400 including all consonant keys that can be input as consonants for character input as shown in FIG. 4A. Here, the basic key set 400 includes all consonant keys or all terminal sounds and a function key for inputting a consonant (hereinafter, referred to as a consonant key). That is, the basic key set 400 includes a, b, c, d, ㅎ, ㅂ, ㅁ, ㅇ, ㅅ, ッ, ㅋ, ㅌ, ㅈ, ㅁ, consonant keys.

', '

', '

', '

' 키들을 포함하는 확장키셋(410)이 표시된다. When a user touches a specific key of the basic key set 400 to input a desired character, as shown in FIG. 4B, the vowel keys that can be combined with the character corresponding to the input key on the input key are '

','

','

','

'An expanded keyset 410 is displayed that includes the keys.

', '

', '

', '

' 에 대한 모음 구성요소 키들이 포함된 확장키셋(410)이 표시된다. 이때 터치스크린(210)의 디스플레이 영역에 상기 입력된 'ㅁ'키에 해당하는 자음 'ㅁ'이 표시될 수 있다.For example, when the user touches the 'ㅁ' key in the basic key set 400 as shown in FIG. 4B, the user inputs the 'ㅁ' key based on the '

','

','

','

An extension keyset 410 is displayed that includes vowel component keys for '. In this case, a consonant 'ㅁ' corresponding to the input 'ㅁ' key may be displayed on the display area of the touch screen 210.

', '

', '

', '

' 키들을 조합하여 모든 모음들을 입력할 수 있다.The user may use 'collection element keys'

','

','

','

'You can enter all the vowels by combining the keys.

', '

', '

', '

' 에 대한 모음 구성요소 키들이 표시된다.When the user wants to input the character '먀' through the touch screen, find the 'ㅁ' key in the basic key set 400 and touch it with the pointer, or if the pointer is not released from the 'ㅁ' key for a predetermined time after the touch The extended key set 410 is displayed on the 'ㅁ' key. The extended key set 410 has a 'so that the user can enter the desired collection'

','

','

','

The vowel component keys for 'are displayed.

'키를 터치한 후, '

'키를 터치하고, 다시 '

'키를 터치하면, 상기 자음 'ㅁ'과, '

', '

', '

'가 조합되어 디스플레이 영역에 문자 '먀'가 표시된다. 그리고 상기 확장키셋(410)은 다른 자음이 터치될 때 기본키셋(400)상에 표시되지 않는다. 다른 실시 예로서 상기 확장키셋(410)은 상기 원하는 모음구성요소 키들에 대한 연속적인 드래그가 완료되고 포인터가 상기 확장키셋(410)에서 떼어질 때, 기본키셋(400)상에 표시되지 않는다. 또한 다른 실시 예로서 터치스크린(210)의 디스플레이영역에 표시된 , 자음 'ㅁ'이 삭제되는 경우 기본키셋(400)상에 표시되지 않는다.Since the vowel 'ㅑ' does not exist in the extended keyset 410, the user inputs the vowel 'ㅑ' using the vowel component keys. In other words, the user may enter '

"After touching the key,

'Touch the key, and again'

'Touch the key, the consonant' ㅁ 'and'

','

','

Is combined to display the letter '먀' in the display area. The extended keyset 410 is not displayed on the basic keyset 400 when another consonant is touched. In another embodiment, the extension keyset 410 is not displayed on the basic keyset 400 when the continuous dragging of the desired vowel component keys is completed and the pointer is released from the extension keyset 410. In another embodiment, when the consonant 'ㅁ' displayed on the display area of the touch screen 210 is deleted, the main key 400 is not displayed.

Table 1 below shows mapping methods for generating vowels that do not exist in the extended keyset 410 using vowel component keys present in the extended keyset 410.

The character input method according to the third embodiment of the present invention displays a basic key set including all consonant keys that can be input into a consonant on the touch screen 210 for character input, and one consonant key through the basic key set. When is input, the input consonant key and the extended key set including all the vowel keys are displayed.

5A and 5B are diagrams illustrating a text input method using a touch screen according to a third embodiment of the present invention.

'키를 더 포함하고, 중앙에는 기본키셋을 통해 입력된 자음키를 포함한다. 즉, 상기 입력된 자음을 1차입력으로 인식하여, 상기 1차입력을 중심으로 하는 확장키셋(500)과 한글 이외의 문자, 기호 혹은 기능을 입력할 수 있는 기능 입력 영역(510)가 표시된다. The touch screen 210 of the terminal is provided with a touch keyboard for inputting a character by touching, and when a user touches any one consonant key in a basic key set on the touch keyboard to input a character, as shown in FIG. On the basic key set of the terminal, the expanded key set 500 is displayed centering on the input consonant keys (primary input). In this case, the basic key set of the terminal may be configured in the same way as the PC keyboard, or may be composed of all consonants as shown in FIG. 3A or terminal sounds as shown in FIG. 4A. The extended key set 500 is a key that acts as a '~', '/', space bar with all the collections'

'In addition to the key, the center contains the consonant keys entered through the primary keyset. That is, the input consonant is recognized as a primary input, and an extension key set 500 based on the primary input and a function input area 510 for inputting a character, a symbol, or a function other than Korean are displayed. .

The function input area 510 may include special characters other than Korean ('.', ',', '?', '!', Etc.) or function keys (numeric keys, special keys, enter keys, character conversion keys, etc.). It is implemented in, so that the user can input the special characters, symbols, or functions, such as Hangul. The location of the expansion key set 500 and the function input area 510 on the touch screen 210 is not limited to those shown, and may be attached or separated.

For example, if the user wants to input the letter 'large' through the touch screen 210, find the initial key of the 'large' key on the basic key set, touch the pointer with the pointer, and touch the pointer for a predetermined time. If the key is not released, the extended key set 500 is displayed on the input key. The expansion key set 500 includes keys of all possible Hangul vowels around the primary key 'c'. To input the vowel 'ㅐ' through the extended keyset 500, the user drags the 'ㄷ' key to the 'ㅐ' key of the extended keyset 500 without releasing the pointer and then drops it, or the 'ㅐ' with the pointer. When the key is touched, the letter 'large' is displayed on the touch screen, and the extended key set 500 is not displayed since the second input vowel 'ㅐ' is input.

Next, a method of inputting English as an example of a foreign language will be described to describe a method of inputting a foreign language among character input methods with reference to FIG. 5B.

Referring to FIG. 5B, the touch screen 210 of the terminal is provided with a touch keyboard capable of inputting English characters, and when any English character keys are touched on the touch keyboard to input English characters, FIG. 5B. As shown in the drawing, the expansion key set 530 is enlarged on the touch keyboard of the terminal.

' 키를 포함하고, 사용빈도나 개발자의 의도를 반영한 문자 혹은 기호 혹은 접미사에 대한 키들을 추가적으로 포함한다. 확장키셋(530)내의 각 키는 1차입력된 문자에 연결되어 단어를 만들 수 있는 하나 혹은 그 이상의 모음키를 포함할 수 있다.The extended key set 530 is a key that acts as a vowel and a space bar of alphabets around the first input English letter.

'Key, and additionally include keys for letters, symbols, or suffixes that reflect usage or developer intent. Each key in the extended keyset 530 may include one or more vowel keys that are connected to the primary input letter to form a word.

The function input area 550 may include non-alphabetic special characters ('.', ',', '?', '!', Etc.) or function keys (numeric keys, special keys, enter keys, character conversion keys, etc.). It is implemented so that a user can input the special character, symbol, or function like an alphabet.

For example, if a user wants to input English 'be' through the touch screen 210, the user may find a 'b' key on the touch keyboard and touch it with the pointer, or if the user does not release the pointer for a predetermined time after the touch, The expansion key set 530 centered on the b 'key is displayed. The expansion key set 530 includes all possible alphabet vowel keys and keys of suffixes according to a frequency of use or a developer's intention, centering on a primary input key 'b'. To generate the extended keyset 530 and input the vowel 'e', the user touches the 'e' key or the 'e' key in the extended keyset 550 without releasing the pointer touched the 'b' key. When the pointer is dragged and dropped, the letter 'be' is displayed on the touch screen 210.

In the character input method according to the fourth embodiment of the present invention, a basic key set including a minimum consonant key and a vowel key is displayed on the touch screen 210 for character input, and one key is input through the basic key set. When the input key is input, the extended key set including the input key and a text function key that can be combined with the input key is displayed. Here, the basic key set includes predetermined basic consonant keys and short vowel keys.

6A through 6D are diagrams illustrating a character input method using a touch screen according to a fourth method according to the first embodiment of the present invention.

As illustrated in FIG. 6A, the touch keyboard of the terminal includes a basic key set 600 including keys for basic consonants and short vowels as minimum consonants and minimum vowel keys for character input. Here the basic consonants include a, b, d, ㅁ, ㅅ, o, and short vowels include ㅏ, ㅓ, ㅗ, TT, ㅡ, l. When the user touches a specific key of the basic key set 600 to input a desired character, an extension including character function keys that can be combined with the character corresponding to the input key together with the input key as shown in FIGS. 6B to 6D The keysets 610, 630, and 650 are enlarged and displayed.

For example, as shown in FIG. 6B, when the user finds the 'ㅁ' key in the basic key set 600 and touches it with the pointer, or does not release the pointer from the 'ㅁ' key for a predetermined time after touching, the 'ㅁ' key Extended Keyset 610 is displayed. In this case, a consonant 'ㅁ' corresponding to the input 'ㅁ' key may be displayed on the display area of the touch screen 210. The extended key set 610 includes, for example, a stroke addition key, a consonant key, and a space (SP) key as the 'ㅁ' key and the character function keys that can be combined with the consonant 'ㅁ'.

The stroke addition key and the consonant key shown in the expansion keyset 610 of FIG. 6B may be represented as the expansion keyset 630 of FIG. 6C.

In addition, when the 'ㅏ' key is touched in the basic key set 600 as shown in FIG. 6D, the first region includes vowel 'ㅏ' corresponding to the 'ㅏ' key, and the remaining region includes character function keys that can be combined with the vowel 'ㅏ'. For example, a popup window 650 including a stroke addition key, a double vowel key, and a space (SP) key is displayed.

Hereinafter, a method in which a user inputs text using a basic key set displayed on a touch keyboard will be described with reference to FIG. 6C.

If the user wants to input the character 'bar' through the basic key set 600 displayed on the touch keyboard, the consonant 'ㅂ' does not exist in the basic key set 600, so the consonant ' Enter ㅂ. That is, if the 'ㅁ' key is found in the basic key set 600 and is touched with a pointer or if the pointer is not released from the 'ㅁ' key for a predetermined time after the touch, the consonant 'ㅁ' is displayed on the display area and the ' The extended key set 630 is displayed on the key of ㅁ '. Accordingly, when the user touches the stroke additional key in the extension key set 630, the consonant 'ㅁ' displayed on the display area of the touch screen 210 is changed to the consonant 'ㅂ'. In order to complete the character 'bar', the user finds the 'ㅏ' key in the basic key set 600 and touches it with the pointer, or the consonant 'ㅂ' and the vowel 'ㅏ' are combined when the touched pointer is not released for a predetermined time. 'Bar' is displayed on the touch screen 210.

Table 2 below shows a method of generating consonants and vowels that do not exist on the touch keyboard using consonants and vowels and text function keys that do not exist on the touch keyboard as in the case of inputting the consonant 'ㅂ' described above. to be.

In the character input method according to the fifth embodiment of the present invention, a basic key set including a minimum consonant key is displayed on the touch screen 210 for character input, and when one consonant key is input through the basic key set. Displaying the input consonant key and the vowel keys combinable with the input consonant key (the vowel component keys of the heavenly man), and an extended key set including a double consonant key and a hybrid conjugated consonant key associated with the input consonant key. will be.

7 is a diagram illustrating a text input method using a touch screen according to a fifth embodiment of the present invention.

Referring to FIG. 7, as shown in FIG. 7A, the basic key set 700 includes predetermined minimum consonant keys. Here the minimum consonant keys include b, a, c, d, k, k, k, k, o. When any one of the keys displayed on the basic key set 700 is touched, the input consonant key and vowel keys combinable with the input consonant key as shown in FIG. Vowel component keys according to the method or mapping Korean input method), and an expanded key set 710 including a double consonant consonant key and a hybrid consonant key associated with the input consonant key are displayed on the input consonant key.

Hereinafter, a case in which the user inputs 'crab' through the basic key set 700 and the expansion key set 710 will be described.

As shown in FIG. 7A, the basic key set 700 includes a minimum of consonant keys. Specifically, 'a, ㄷ, ㅂ, ㅅ, ㅈ' is displayed on the corresponding key together with the relevant characters, where the relevant characters may be a double sound consonant and a hybrid double consonant associated with the corresponding terminal sound. For example, in case of 'ㅂ', the related characters may be 'ㅃ' and 'ㄷ', and in case of 'ㅈ', 'ㅉ' and 'ㅊ' may be used. In addition, in the case of 'ㅅ', it is possible to additionally display the terminal sound 'ㅎ' as a related character along with 'ㅆ'.

The user must first input a consonant 'a' in order to input 'crab' in the displayed basic key set 700 as described above. Accordingly, when the user touches the key 701 in which 'a, ㄲ, ㅋ' is displayed, the 'a' is displayed on the display area and the extended key set 710 is displayed as shown in FIG. 7 (b). The extended keyset 710 may be displayed in various ways, such as in an existing key area, a pop-up window, or a new text area. For example, in FIG. 7B, the extended key set 710 is displayed on a part of the input editor window to display all the heavens and the earths around the 'a' key 701. When the user touches the '·' key among the character keys of the expansion key set 710 as shown in FIG. 7 (b), in order to input the vowel 'ㅔ' after the consonant 'ㄱ', the input '·' key becomes the user. It is highlighted through visual effects so that it can be perceived by. In addition, '·' displayed on the highlighted '·' key 703 is displayed in combination with the input 'b'. At this time, 'a' and '·' are temporarily displayed on the touch screen 210.

When the user touches the 'ㅣ' key 705 as shown in FIG. 7 (c) following the process of FIG. 7 (b), the consonants 'a' and '·' input in the process of 7 (b) And 'ㅣ' corresponding to the input 'ㅣ' key are combined, and the character 'ger' is displayed on the touch screen 210. At this time, while the 'ㅣ' is displayed and the '-' key and the '·' key 709 may be controlled to no longer receive a user's touch input. This is because 'ㅓ' displayed on the touch screen 210 cannot be combined with 'ㅡ' and '·'. Therefore, it is possible to reduce an error of unintended vowel input of the user and to input a desired character more accurately.

On the other hand, as shown in Figure 7 (c) in the extended keyset 700, the key area input through the basic keyset 700, that is, the center of the extended keyset 700 corresponding to the key indicated by the touch of the pointer according to the Any one of the vowel components is displayed. This is because in the embodiment of the present invention, when a pointer is touched on keys assigned to vowel elements that are strewn, the inputable vowel may be displayed on any one of the keys following the vowel of the key indicated according to the touch of the pointer. . In FIG. 7 (c), 'l' 707 is displayed at the center of the expansion key set 710 instead of 'a' input through the basic key set 700.

As shown in FIG. 7C, the user may select one of the vowel constituent elements that are celestial again in the state of outputting 'ger'. At this time, the user selects a desired key among the keys in which the vowel elements that are strewn are displayed in the extension key set 710. In FIG. 7 (d), since the 'ㅣ' key 711 is selectable, the user touches the 'ㅣ' key 711 using a pointer. Accordingly, 'ㅣ' is additionally displayed on the touch screen 210, and as a result, 'crab', which is a character that the user wants to input, is displayed as shown in FIG. 7 (e).

In the process of FIG. 7, all characters displayed on the touch screen 210 are temporarily output on the touch screen. This is to provide a result of the combination of the selected consonant and Cheonjiin to the user in advance so that the user can easily input a desired character. In an embodiment of the present invention, when the input of the characters is terminated, the characters temporarily output are actually displayed on the touch screen 210. Therefore, the user can check the combination result in advance, and if the desired combination result is output, the key is terminated so that the corresponding character is actually input (that is, finally). In other words, when a desired character is temporarily output on the touch screen 210 through a touch, the user releases the corresponding key so that the temporarily displayed character is actually displayed. In the first exemplary embodiment of the present invention, since the crab, which is a desired letter, is displayed on the touch screen 210 as shown in FIG. 7 (d), the user ends the key input so that the crab as shown in FIG. Will cause the final output. Therefore, the present invention has the advantage that it is possible to quickly input the consonants and vowels of Hangul more accurately.

8 is a flowchart illustrating a text input method using a touch screen according to an embodiment of the present invention.

Referring to FIG. 8, in step 801, the controller 250 controls the touch screen 210 to display a basic keyset or a combination of a basic keyset and an extended keyset, and waits for a key touch from the user.

In step 803, the control unit 250 receives a detection result when a touch of a specific key displayed on the touch screen 210 is detected by the input detecting unit 230, and confirms a key input through a basic key set or an extended key set. In this case, the detection result is whether the specific key has been touched by the pointer, the pointer has not been released for a predetermined time after being touched, the pointer has been dragged and dropped, dragged in a specific area without releasing the pointer for a predetermined time, and the like. It includes.

In step 805, the controller 250 determines whether the input key is a character key, and if it is a character key, proceeds to step 1609 and if it is not a character key, proceeds to step 807 and performs a corresponding operation on the input key. .

In step 809, the controller 250 checks whether a character corresponding to the input key is combinable with a character corresponding to a previously input key, and if it is possible to combine, the controller 250 corresponds to a character corresponding to the input key and a previously input key. By combining the characters to determine the combined characters to be displayed on the touch screen 210, if it is not possible to combine or if the previous input key does not exist, the character corresponding to the input key to the touch screen 210 Character).

In step 811, the controller 250 controls the checked characters to be displayed on the touch screen 210.

In step 813, the controller 250 determines whether a character for the input key is touched in the basic key set, and if it is input in the basic key set, the controller 250 proceeds to step 815 to display an extended keyset for the input key. If it is not touched (ie, if it is input from the extended key set), the process proceeds to step 801 to wait for key input.

In operation 815, the control unit 250 controls the touch screen 210 to display an extended key set for the input key so as to overlap the input key, and then proceeds to step 801 to perform the next key touch from the user. Wait In this case, in step 815, when the extended keyset for the previously input key exists on the touch keyboard, the controller 250 removes the extended keyset for the previously input key and includes only the extended keyset for the currently input key. The touch screen 210 is controlled to display the touch keyboard.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. As an example of variation, the present invention can be easily applied to other languages having consonants and vowels without major modifications. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by those equivalent to the scope of the claims.

Claims (10)

In the device for inputting characters in the terminal,
A basic keyset including a plurality of predetermined basic consonant keys, and basic consonant keys adjacent to the first consonant key having characters associated with a first consonant corresponding to a first consonant key selected among the basic consonant keys through the basic keyset; A touch screen displaying an extended key set including a plurality of second character keys disposed on the touch screen;
And a controller configured to control the touch screen to display the extended key set when the first consonant key is input through the basic key set, and to receive at least one character through the extended key set.
A touch keyboard for displaying the basic key set is formed below the touch screen, and a display unit for displaying characters input by the touch keyboard is formed on the upper portion of the touch screen, and a portion of the extended key set is provided on the display unit. Character input device characterized in that displayed. The method of claim 1, wherein each of the second letter key,
Character input device having the same size as the first consonant key. The method of claim 1, wherein the second letter keys,
And a first consonant key centered around the first consonant key to surround the first consonant key. The method of claim 1,
And a character assigned to a second character key formed in a direction facing a touch movement input input on the touch screen is displayed on the display unit. The method of claim 1,
And the extended key set is highlighted. In the method for inputting characters in the terminal,
Displaying a basic key set including a plurality of predetermined basic consonant keys on a touch screen;
Receiving a first consonant key among the basic consonant keys through the basic key set;
Display an extended keyset on the inputted first consonant key, the extended keyset including a plurality of second character keys disposed in the character keys adjacent to the first consonant key with the letters associated with the first consonant corresponding to the selected first consonant key Process,
Receiving at least one character key of the second character keys through the extension key set;
A touch keyboard for displaying the basic key set is formed below the touch screen, and a display unit for displaying characters input by the touch keyboard is formed on the upper portion of the touch screen, and a portion of the extended key set is provided on the display unit. Character input method characterized in that the display. The method of claim 6, wherein each of the second letter key,
Character input method having the same size as the first consonant key. The method of claim 6, wherein the second letter keys,
Characterized by the first consonant key in the center, characterized in that formed around the first consonant key to surround the first consonant key. The method according to claim 6,
And a character assigned to a second character key formed in a direction in which a touch movement input is input on the touch screen. The method according to claim 6,
And the extended key set is highlighted and displayed.

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