KR100971280B1 - Apparatus and method for hangul input using transformation keys - Google Patents

Abstract

The present invention relates to a Hangul input device using a conversion key and a method thereof, and to separate consonants and vowels from the left / right side of a keypad of a portable terminal, and to using the consonant / vowel conversion key to expand consonants (loose sounds, old sounds, etc.). ) Or double vowels (ㅑ, ㅕ, ㅛ, ㅠ, ㅐ, ㅒ, ㅔ, ㅖ) to input / modify Korean characters quickly and easily through both hands.

To this end, the present invention provides a Hangul input device comprising: a consonant key input means comprising a plurality of basic consonant keys to which basic consonants are assigned and consonant conversion keys for converting a basic consonant selected through the basic consonant key into an extended consonant; Vowel key input means comprising a plurality of basic vowel keys to which basic vowel elements are assigned and a vowel conversion key to which dual vowel elements are assigned; And character combination means for combining a consonant input through the consonant key input means and a vowel input through the vowel key input means to form a Hangul character, wherein the character combination means is configured to form one character. When the selection of the consonant conversion key is detected, the consonant inputted after the character is changed to another consonant in the consonant group.

Hangul input, keypad, keyboard, conversion key, consonant conversion key, vowel conversion key, semi-serious

Description

Hangul input device using transformation key and its method {APPARATUS AND METHOD FOR HANGUL INPUT USING TRANSFORMATION KEYS}

The present invention relates to a Hangul input technology in a mobile terminal, and more particularly, to separate consonants and vowels on the left and right sides of the keypad, and to expand consonants (loose sounds, old sounds) or double using consonant / vowel conversion keys. The present invention relates to a Hangul input device using a conversion key and a method thereof, which can input / modify Hangul quickly and easily through both hands.

In the rapid development environment of portable digital terminals, research on Hangul input methods in these small terminals continues, and accordingly, various types of Hangul input methods are being developed.

In a portable digital terminal such as a conventional mobile phone or a PDA (Personal Digital Assistants) phone having a mobile phone function, a Korean alphabet input device uses a keypad-type input device in which a limited number of keys are arranged in a specific manner.

A typical keypad comprises ten keys, each of which can be arranged in ten numbers, and two other function keys. In the Korean input method using a keypad having a limited number of keys, a method of assigning a consonant, a vowel, or a function key of a Hangul to a keypad, or assigning a plurality of consonants or vowels to one key, There is a method of selecting one of the / vowels, and this method plays an important role in terms of the speed of the Hangul input, the number of key operations required for the input, and the convenience of the input method.

Representative examples of Korean input methods using keypads developed so far are "Cheonjiin" input method (Fig. 1A) used in mobile phones manufactured / sold by Samsung Electronics Co., Ltd. and mobile phones manufactured / sold by LG Electronics. There is a "naragle" input method (Figure 1b). Hereinafter, each will be described.

First, a description will be given of the "Cheonjiin" input method as shown in Figure 1a.

The "Cheonjiin" input method adopts the Cheonjiin (ㅣ, ㅡ, ㆍ) method, which is the Hangul apprentice principle. Instead of directly assigning the vowels of Hangul to the keys on the keypad, the "ㅣ", "ㅡ", "· ", Assign it to three keys, combine them to enter a vowel, and assign consonants to the remaining keys.

Looking at the structure of the keypad employing the "Cheonjiin" method, there is a problem that it is inconvenient to use both hands because the consonants and vowels are not separated into left and right. For example, in case of inputting "ki", it is difficult to use both hands because the corresponding letter keys are all on the left side.

In addition, there is a problem that it is inconvenient to input consonants continuously in the conventional " heavenly " input method. For example, button 5 has "b" and "ㄹ" together, and if you press button 5 once, "b" is pressed twice. In this case, there is a problem in that when the button 5 is continuously pressed twice in order to input the continuous "b", "b" is input instead of "b" twice. That is, when two consonants in the same button are continuously input, another consonant in the same button is input.

In addition, in the conventional "Cheonjiin" input method, the vowels of Korean characters are not used as they are, but the user must first consider the type of vowels that the user wants to input, and accordingly, 'ㅣ, ㅡ, ㆍ' should be appropriately combined. Another problem is that the number of operations of the key required to input the vowel increases, which is inconvenient.

Next, the "naratgle" input method as shown in Figure 1b will be described.

In the conventional "naratgle" input method, basic consonants are assigned to one key, short vowels are assigned to the remaining keys, and extended consonants, double vowels, etc. are performed using a function key such as a stroke addition key (*) or a double consonant key (#). To form. In the conventional "naratgle" input method, in the case of Korean, the consonants are more than vowels in the basic phoneme, and in the case of vowels, it is easy to convert them using a function key such as a stroke addition key. There are more keys assigned to consonants than keys assigned to vowels. Here, in the keyboard layout of the conventional portable terminal, the conversion key is mostly disposed at the "*" key or the "#" key.

In the conventional "naratgle" input method, a function key such as a stroke addition key is inevitably used many times for input of consonants or vowels, which increases the number of key manipulations, and ultimately, input speed or convenience of inputting. There is a problem of deterioration.

In addition, the consonants or vowels that are frequently used with the stroke keys are relatively far from the stroke keys, which reduces the ease and speed of typing, especially when the keypad is operated with one hand. There is a problem that) is long.

이 된다. 예를 들어, 우측 최상단의 숫자 3번 버튼을 누른 후 좌측 최하단의 획추가 키(*)를 누르는 경우, 자판 1칸을 "1"로 가정하여 대각선 끝의 버튼 간의 거리를 구하면 가로 "2", 세로 "3"인 직각 삼각형의 대각선의 길이에 해당하는 바, 피타고라스의 정리에 의하면 L²=2²+3²=13이 된다. 따라서 획 추가키 「*」등과 같은 변환 키로부터의 최대 운지 거리가 커서, 한글 입력 시 비효율적이라는 문제점이 있다.Specifically, for example, in the keyboard layout structure, the maximum fingering distance is

Becomes For example, if you press the number 3 button on the top right and press the stroke button (*) on the bottom left, the distance between the buttons on the diagonal ends is assumed to be "1" and the horizontal "2", It corresponds to the length of the diagonal of a right triangle having a length of "3", and according to Pythagorean theorem, L ² = 2 ² +3 ² = 13. Therefore, there is a problem that the maximum fingering distance from the conversion key such as the stroke addition key "*" is large, which is inefficient when inputting Hangul.

The prior art as described above has a problem in that it is inconvenient to use both hands when inputting Hangul in a portable terminal, inefficient fingering distance when using a conversion key, and it is inconvenient to input two consonants consecutively. It is a problem of the present invention to solve the problem.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention which are not mentioned can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

The present invention, in order to solve the above object, in the portable terminal separate consonants and vowels to the left / right side, using the consonant / vowel conversion key extended consonants (rough, old sounds, etc.) or double vowels (ㅑ, ㅕ, ㅛ, ㅠ, ㅐ, ㅒ, ㅔ, ㅖ) is characterized in that the input / modification.

More specifically, the present invention provides a Hangul input device comprising: a consonant key input unit comprising a plurality of basic consonant keys to which basic consonants are assigned and a consonant conversion key for converting a basic consonant selected through the basic consonant key into an extended consonant; Vowel key input means comprising a plurality of basic vowel keys to which basic vowel elements are assigned and a vowel conversion key to which dual vowel elements are assigned; And character combination means for combining a consonant input through the consonant key input means and a vowel input through the vowel key input means to form a Hangul character, wherein the character combination means is configured to form one character. When the selection of the consonant conversion key is detected, the consonant inputted after the character is changed to another consonant in the consonant group.

According to another aspect of the present invention, there is provided a Hangul input device comprising: a consonant key input unit comprising a plurality of consonant keys each basic consonant and the corresponding extended consonant being one consonant group and assigned to one key; Vowel key input means comprising a plurality of basic vowel keys to which basic vowel elements are assigned and a vowel conversion key to which dual vowel elements are assigned; And character combination means for combining a consonant input through the consonant key input means and a vowel input through the vowel key input means to form a Hangul character, wherein the vowel conversion key is selected. According to the type of the basic collection key selected immediately before or the type of the basic collection key selected immediately after the vowel conversion key is selected, the type of the duplicate input function key is determined to perform the character combination.

According to another aspect of the present invention, there is provided a Korean consonant input method applied to a Korean input device, comprising: a basic consonant input step of recognizing a basic consonant corresponding to a basic consonant key selected by a user as an input consonant; And a consonant for selecting one consonant and changing the input consonant according to the number of times the consonant conversion key is selected within the consonant group consisting of the recognized basic consonant and the corresponding extended consonant when the consonant conversion key is selected by the user. And a consonant conversion step, wherein the consonant conversion step changes the consonant when the consonant conversion key is selected after the initial consonant and the neutrality are input, and when the consonant conversion key is selected after the initial consonant and the neutrality are input. Change the finality.

The present invention also provides a Korean vowel input method applied to a Korean input device including a plurality of basic vowel keys assigned to basic vowel elements (“ㅣ, ㅡ, ㆍ”) and a vowel conversion key assigned to double vowel elements. A confirmation step of confirming a basic vowel element corresponding to the selected basic vowel key when the basic vowel key and the vowel conversion key are sequentially selected; A first input step of generating a first input vowel by recognizing the vowel conversion key as a ".redundant input function key" when the checked basic vowel element is "|" or "-"; And a second input step of generating a second input vowel by recognizing the vowel conversion key as a " duplicate input function key " when the identified basic vowel elements are one or two ". &Quot;

In the above invention, by separating the consonants and vowels to the left / right in the portable terminal, it is possible to input by using both hands alternately, and this also has the effect of significantly increasing the typing speed (Hangul input speed). .

In addition, the present invention can quickly input a variety of vowel / consonant through the vowel / consonant conversion key, and also has the effect that it is possible to quickly / easily correct the wrong input Hangul (typo) through the conversion key. If you accidentally enter the initial consonant and go to neutral, you can easily fix the consonant (consonant) by using the consonant conversion key. For example, if you enter "ㅋ", but enter "ㄱ" and go to "넘어", press the consonant conversion key once, "ga" has the effect of changing to "car".

In addition, the present invention can minimize the fingering distance of the conversion key by arranging the conversion key in consideration of the conversion key priority, thereby increasing the efficiency / convenience of the Hangul input.

In addition, the present invention converts (converts) only a plurality of consonants (for example, a, ,, ㄲ) in the same key (button) through the consonant conversion key, so that two consonants can be quickly and easily successively. There is an effect that can be entered. That is, there is an effect to solve the problem in the existing "heaven" input method.

The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, in which: There will be. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a diagram illustrating a first embodiment of a Hangul input method using a conversion key in a portable terminal according to the present invention, and illustrates a semi-separated keyboard arrangement including a consonant conversion key and / or a vowel conversion key.

The three-key keyboard of a personal computer (PC) is a keyboard that can simultaneously play initial, neutral, and final species. However, the portable terminal is a semi-separated keyboard capable of hitting both initial and neutral due to the size limitation of the keyboard.

In general, a personal computer (PC) can have a large number of keyboards, so it displays both initial, neutral, and final screens, but since the keypad of the mobile phone is limited to 12 keypads, specific phonemes are input through conversion and assembly. That is, in the portable terminal, it is not possible to hit the initial and the neutral at the same time, the present invention provides a semi-separated keyboard (keypad) that can be input with both hands by modifying (changing) the combination order of consonants and vowels.

The present invention is a keyboard arrangement in consideration of user convenience, in which a consonant keyboard (basic consonant key) 20 is placed on the left side in order to allow a user to hit the keyboard with both thumbs and to advantageously input consonant-vowel cross input. Then, the basic vowel phoneme (heavenly phoneme) keyboard 21 is arranged on the right side. The consonant conversion key 22 and the vowel conversion key 23 are arranged at the lower left and the lower right.

In the present invention, in the Hangul input mode, pressing the number 1 key (“ㄱㅋ ㄲ” button) becomes “ㄱ”, and then press “consonant conversion key” (consonant conversion button) 22 once to “ㅋ”. When the consonant conversion key 22 is pressed again, "ㄲ" is obtained. That is, "a", "k", and "k" in the same button are repeatedly converted by the consonant conversion key 22 in the order of "a → k → k → a". That is, according to the number of selections (the number of button presses) of the consonant conversion key 22, the consonant group consisting of the basic consonant and the extended consonant ("ㄱㅋ ㄲ", etc.) in a certain order (basic consonant → coarse sound → consonant sound ( Double consonants), or b → l, or f → he), one of the consonants is determined as the input consonant.

This solves the problem that occurs when two consecutive consonants of the existing "heaven" input method occur. That is, the present invention uses the consonant conversion key 22 to eliminate a special situation in which continuous consonant input is impossible.

In the present invention, for example, when the number 1 key is pressed several times, only the corresponding basic consonant "" "is inputted the number of times, and the corresponding sound (" ㅋ ") or the sound (" ㅋ ") in the same button (key) ( Is not changed (converted). That is, in the keyboard layout of FIG. 2, the rough sound (ㅋ, ㅌ, ㅊ, etc.), the old sound (ㄲ, ㄸ, ㅃ, ㅆ, ㅉ, etc.) displayed together with the basic consonant in the same key (button), the related consonant (ㄹ, ㅎ) Extended consonants, such as), are converted in order by the consonant conversion key 22.

In addition, although the basic consonant and the extended consonant are displayed together on the keypad of FIG. 2, this means that the basic consonant and the corresponding extended consonant are assigned to one key (this is the structure of the keypad of the conventional "heaven" input method). Rather, the consonants that can be expanded by the consonant conversion key 22 are only displayed together with the corresponding basic consonants, which is the same with FIG. 3.

In the keyboard layout of FIG. 2, since the fingering distance during consonant input is not particularly considered, the keyboard layout is somewhat inefficient. Therefore, an efficient "consonant" arrangement considering the fingering distance will be described with reference to FIG. 3.

Next, the "collection" arrangement according to the present invention will be described.

If you examine the vowels that require more than three strokes in the existing vowel input method, you can see that there are ㅑ, ㅕ, ㅛ, ㅠ, ㅐ, ㅒ, ㅔ, ㅖ. Their commonality is that you need to press `` ・ '' twice, such as ㅕ, ㅕ, ㅛ, ㅠ, or press ㅣ twice, such as ㅐ, ㅒ, ㅔ, ㅖ, ㅖ, ㅖ. to be.

Therefore, in the present invention, the three buttons on the keypad are arranged (assigned) as "-", "-", "-" which are vowel elements (collection pieces) of Cheonjiin, and the other key is used as a kind of special key (collection conversion key). It is characterized by.

That is, in the present invention, the double vowel can be input through the operation of the vowel conversion key 23 after pressing the basic vowel key 21. Here, the vowel conversion key 23 is designed to reduce the number of operations during double vowel input. The vowel conversion key 23 performs a function such as pressing ㅣ twice or pressing ㆍ twice. It is automatically determined based on the type of the default vowel element (vowel pieces) entered immediately before pressing, or the type of the default vowel font (vowel pieces) entered immediately after the vowel conversion key is pressed. That is, the vowel conversion key 23 corresponds to the "|" duplicate input function key or the "..." duplicate input function key.

For example, if the vowel conversion key 23 is pressed after pressing the "|" key, it becomes "ㅑ" as if two "." Were inputted. When the vowel conversion key 23 is pressed after pressing the "·" key, it becomes "ㅔ" as if two "|" were input. After pressing the vowel conversion key 23, pressing the "*" key twice results in "ㅒ". Specific examples are shown in Table 1 below. In Table 1, "side" means a vowel conversion key 23.

Looking closely at Table 1 below, you can see that most of the vowels are two times. In particular, in the case of "ㅒ" and "ㅖ", since "" "twice" and "" | "twice are arranged on one button, the role of the vowel conversion key is provided. Does a double press of "ㅣ", and allows the user to press "・" twice.

On the other hand, when comparing the conventional vowel input method and the vowel input method of the present invention, it is as shown in Table 2 below. In Table 2, "Cheonjiin" is a Korean (especially vowel) input method of a mobile terminal used by Samsung Electronics, and "Naratgle" is a vowel input method of a mobile terminal used by LG Electronics.

In the conventional "Cheonjiin" input method, vowels can be intuitively inputted using basic vowel elements (collection pieces) such as "ㅡ", "ㅣ", "...". However, there is a problem that the total number of strokes increases because the vowel stroke is proportional to the stroke order.

On the other hand, in the case of the "naraggle" input method, the basic vowels "ㅏㅓ", "ㅗ TT", "-", "ㅣ", and "*" (additional key) are used for the "ㅑ", "ㅕ", "ㅛ" Another vowel can be made through the combination of “ㅠ” or a combination of basic vowels. This requires a certain learning (how-to) to use, but the existing consonant separation keyboard still has a good vowel number and fingering distance. Has

Therefore, the vowel input method of the present invention has the same intuition as the "Cheonjiin" input method, but has a stroke and fingering distance at the vowel level in the "naratgle" input method. In the present invention, since the consonant unit uses eight buttons including the consonant conversion key 22, the vowel input structure is provided using the remaining four buttons.

Comparing the present invention and the prior art through the above [Table 3], it can be seen that the present invention is more reduced the number of hits than the "naratgle" method of LG Electronics which has an advantage in terms of the number of hits.

FIG. 3 is an explanatory diagram of a Hangul input method using a conversion key in a portable terminal according to the present invention. Unlike FIG. 2, the position of the consonant conversion key 22 is efficiently disposed in consideration of the movement of a finger. will be.

The present invention relates to a keyboard layout method considering conversion key priorities, the specific keyboard layout of which is shown in FIG. Here, the conversion key priority is to place a hidden letter with a high probability of occurrence among hidden texts (eg, the exposed letter is "ㄱ", the hidden letter is "ㅋ", and [Table 3]) close to the consonant key. Means priority.

Three letters are placed on the button with the consonant sound ㄲ, ㄸ, ㅃ, ㅆ, ㅉ, such as ㄱ, ,, ㅂ, ,, ㅈ. For example, place "ㄱㅋ ㄲ" on the number 1 button.

In arranging the initial keyboards, the consonants having a high priority are searched from the frequency of 1,547 Hangul syllables based on the probability of occurrence of the first and last consonants.

Priority 7 among the consonants such as ㄱ, ㅇ, ㄹ, ㅈ, ㄷ, ㅅ, ㅂ, ㅁ, ㅎ, ㄴ, ㅊ, ㅌ, ㄴ, ㅋ (ㄱ, ㅇ, ㄴ, ㅈ) , ㄷ, ㅅ, ㅁ) first, and the remaining 7 consonants (ㅂ, ㅎ, ㄷ, ㅌ, ㅍ, ,, ㅋ) are arranged according to the user's recognition possibility. In addition, each consonant pair was placed on the basis of the results from a survey of pairing 14 consonants with associated consonants. Specifically, it is shown as [Table 3] below.

Exposed letters Hidden letters Conversion key priority A Lol 7 ㅇ ㅎ 3 N D One ㅈ H 4 C ㅌ 5 S ㅍ 6 M ㅂ 2

으로 길게 된다.In the existing mobile terminal, the conversion key is often arranged at the lower left / right side of the "*" key or the "#" key (for example, a "naragle" input method).

It becomes long.

가 되기 때문에 운지 거리 측면에서는 더욱 효율적이다.However, if the consonant conversion key 22 is placed at the button position corresponding to the number 5 or 8, the maximum fingering distance will be

It is more efficient in terms of fingering distance.

이다.Therefore, in the second embodiment of the present invention, the conversion key 21 is placed on the keypad "5" in consideration of the conversion key priority. If a special key, that is, a consonant conversion key, is placed on the keypad "5", the farthest button is the "ㅅㅆ" button, and the maximum fingering distance is obtained through the Pythagorean theorem.

to be.

The reason why the consonant conversion key 22 is not arranged on the keypad "7" is to place the first "b-d" pair in priority order on the keypad "2" while being close to the conversion key.

Although the consonant conversion key 22 and the vowel conversion key 23 are described together with reference to FIGS. 2 and 3 above, according to the exemplary embodiment of the present invention, the "consonant conversion method using the consonant conversion key" and the existing Can be combined with the "Chinese vowel input method", or the existing "Chinese vowel input method" (basic consonants and extended consonants are assigned to each key and the input consonants change repeatedly according to the number of times the corresponding key is selected). ) And "vowel input methods using vowel conversion keys" may be combined.

4 is an explanatory diagram illustrating a correction function of a consonant conversion key according to the present invention.

In order to strike the "bak" "wh → ㅂ → rain → bar → foil", as shown in Fig. 4 "wh (101) → beauty 102 → rain 103 → bar 104 → foil 105 ) "Is possible.

Herein, "wh → v" in "wh → v → ratio → bar → foil” is possible by the consonant conversion key 22. And " M > 102 > ratio " " in " < / RTI > After pressing, the consonant conversion key 22 is pressed to change only ""

As described above, it is possible to change the state of the initial and neutral states, by arranging the consonant button on the left side of the keypad and the vowel button on the right side, thereby inducing the optimization of two-handed batter.

As another example, when "Bob" is used, when "Night" is written, it may be modified to "Bob" through the consonant conversion key 22.

5 is a configuration diagram of an embodiment of a character input device of a portable terminal according to the present invention.

As shown in FIG. 5, the character input device of the portable terminal according to the present invention includes a consonant key input unit 50, a vowel key input unit 51, a character combination unit 52, and a display unit 53. Is done. Hereinafter, each component will be described.

The consonant key input unit 50 converts the basic consonant selected through the seven basic consonant keys (501, " 20 " in FIG. 2) to which the basic consonant is assigned and the basic consonant key to the extended consonant. 502, 22 (see Figs. 2 and 3). In some embodiments, the consonant key input unit 50 may use a conventional consonant input method (see FIG. 1A).

The vowel key input unit 51 includes three basic vowel keys 511 (" 21 " in FIG. 2) to which basic vowel elements " ", " &Quot; " or ". &Quot;) includes assigned vowel conversion keys 512 and 23. " According to the exemplary embodiment, the "vowel conversion key" may be excluded as in the conventional input method.

The character combination unit 52 combines a consonant input through the consonant key input unit 50 and a vowel input through the vowel key input unit 51 to form a Hangul character. The character thus formed is displayed through the display unit 53.

First, the character combination unit 52 will be described with reference to a consonant input using the consonant conversion key 502.

The character combination unit 52 recognizes any one consonant as an input consonant in a predetermined consonant order within a consonant group consisting of a basic consonant and an extended consonant according to the number of selections (the number of button presses) of the consonant conversion key 502. . In particular, when the character combination unit 52 detects the selection (button press) of the consonant conversion key 502 while forming one character, the consonant inputted from the character as another consonant in the consonant group is detected. Change (see FIG. 4).

For example, if the consonant conversion key 502 is selected after the initial and the neutral are input (that is, in the state of "ga" input), change the initial ("a") and change "ga" to "car". ), When the consonant conversion key 502 is selected after the initial, neutral, and final stars are input (that is, in the "sensing" input state), change the final ("W") (change "sens" to "A"). do.

Next, the character combination unit 52 will be described with reference to vowel input using the vowel conversion key 512.

When the basic collection key 511 and the vowel conversion key 512 are selected successively, the character combination unit 52 checks the type of the basic vowel element corresponding to the selected basic collection key.

As a result of the check, if the selected basic vowel element is " '" or "-", the vowel conversion key 512 is recognized as " redundant input function key " to generate an input vowel. That is, when the ㅣ conversion key is selected after ① "ㅣ" key is selected, "ㅑ" is selected. ② When the "ㅣ" key is selected after the vowel conversion key is selected, the "ㅕ", ③ "ㅡ" key is selected. If is selected, select “”, ④ vowel conversion key, and then select “ㅡ” key, then generate “” as input bar (refer to [Table 1]). By doing this, the user can reduce the number of strokes.

As a result of the check, if the selected basic vowel element is one or two ". &Quot;, the vowel conversion key is recognized as " i duplicate input function key " to generate an input vowel. That is, when the vowel conversion key is selected after the ① " " key is selected, the " 키 " and ② the vowel conversion keys are selected. When the vowel conversion key is selected, the "ㅖ" and ④ vowel conversion keys are selected, and then two "·" keys are selected.

As described above, "ㅑ, 효과적으로, ㅛ, ㅠ, ㅔ, ㅐ, ㅖ" can be effectively input by the vowel conversion key 512, but using the basic vowel key 511 like the existing "heaven" input method. Of course, it is possible to input.

On the other hand, the method of the present invention as described above can be written in a computer program. And the code and code segments constituting the program can be easily inferred by a computer programmer in the art. In addition, the written program is stored in a computer-readable recording medium (information storage medium), and read and executed by a computer to implement the method of the present invention. The recording medium may include any type of computer readable recording medium.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

1a and 1b is a configuration diagram of the keyboard layout of a conventional portable terminal,

2 is a diagram illustrating a first embodiment of a Hangul input method using a conversion key in a portable terminal according to the present invention;

3 is an explanatory diagram of a second embodiment of a Hangul input method using a conversion key in a portable terminal according to the present invention;

4 is an explanatory diagram of a correction function of a consonant conversion key according to the present invention;

5 is a configuration diagram of an embodiment of a character input device of a portable terminal according to the present invention.

* Explanation of symbols on the main parts of the drawings

22: consonant conversion key 23: vowel conversion key

50: consonant key input unit 51: vowel key input unit

52: character combination 53: display

Claims (26)

In the Hangul input device, Consonant key input means comprising a plurality of basic consonant keys to which basic consonants have been assigned and consonant conversion keys for converting the basic consonants selected through the basic consonant keys into extended consonants; Vowel key input means comprising a plurality of basic vowel keys to which basic vowel elements are assigned and a vowel conversion key to which dual vowel elements are assigned; And Character combination means for combining the consonants input through the consonant key input means and the vowels input through the vowel key input means to form Korean characters, The letter combination means, When the selection of the consonant conversion key is detected while forming one character, the Hangul input device using the conversion key of changing a consonant inputted after the consonant into another consonant in the consonant group. The method of claim 1, The consonant key input means, Placed in the left two columns of the keypad, The vowel key input means, Hangul input device using a conversion key, characterized in that arranged in the right column of the keypad. The method of claim 2, The consonant conversion key, Hangul input device using a conversion key, characterized in that arranged at the bottom end of the first left column of the keypad. The method of claim 3, wherein The consonant key input means, Hangul input device using a conversion key, characterized in that it includes seven basic consonant keys assigned to "ㄱ", "ㄴ", "ㄷ", "ㅁ", "ㅇ", "ㅈ", "t" . The method of claim 4, wherein In the consonant key input means, "A", "c", "o" are assigned to the consonant keys in the first column on the left of the keypad, and "b", "ㅁ", "ㅈ", "v" are assigned to the consonant keys in the second row on the left. Hangul input device using the conversion key, characterized in that assigned in order. The method of claim 2, The consonant conversion key, Hangul input device using a conversion key, characterized in that arranged in the second row or third row of the second left column of the keypad. The method of claim 6, The consonant key input means, Hangul input device using a conversion key, characterized in that it includes seven basic consonant keys assigned to "ㄱ", "ㄷ", "ㅇ", "ㅅ", "ㄴ", "ㅁ", "ㅈ" . The method of claim 7, wherein In the consonant key input means, The consonant keys in the first column on the left of the keypad are assigned in the order of "a", "c", "o", "ㅅ", and in the order of the "b", "ㅁ", "ㅈ" in the second column on the left. Hangul input device using a conversion key, characterized in that the assignment. The method of claim 1, The letter combination means, The Hangul input device using a conversion key according to the number of selection of the consonant conversion key, recognizes any one consonant as an input consonant in a predetermined consonant order within a consonant group consisting of a basic consonant and an extended consonant. delete The method of claim 9, The consonant group is, ㄱ, ,, ㄷ, ㄷ, ㅌ, ㄸ, ㅇ, ,, ㅆ, ㄴ, ,, ㅁ, ㅂ, ㅃ, ㅈ, ,, ㅉ, ㅍ, ㅎ Hangul input device using a conversion key, characterized in that. The method of claim 9, The consonant group is, ㄱ, ,, ㄷ, ㄷ, ㅌ, ㄸ, ㅇ, ,, ㅅ, ,, ㅆ, ㄴ, 」, ㅁ, ㅂ, ㅃ, ㅈ, ,, ㅉ Hangul input device using a conversion key, characterized in that. In the Hangul input device, Consonant key input means comprising a plurality of consonant keys each basic consonant and the corresponding extended consonant being one consonant group and assigned to one key; Vowel key input means comprising a plurality of basic vowel keys to which basic vowel elements are assigned and a vowel conversion key to which dual vowel elements are assigned; And Character combination means for combining the consonants input through the consonant key input means and the vowels input through the vowel key input means to form Korean characters, The letter combination means, Character combination is performed by determining the type of the duplicate input function key according to the type of the default collection key selected immediately before the vowel conversion key is selected or the type of the default collection key selected immediately after the vowel conversion key is selected. Hangul input device using the conversion key. The method of claim 13, The consonant key input means, Placed in the left two columns of the keypad, The vowel key input means, Hangul input device using a conversion key, characterized in that arranged in the right column of the keypad. The method of claim 13, The letter combination means, The Hangul input device using a conversion key according to the selected number of consonant keys, any one of the consonants in a predetermined consonant order within the consonant group assigned to the consonant key consonants as input consonants. The method according to claim 2 or 14, The vowel key input means, A Hangul input device using a conversion key, characterized in that it includes three basic vowel keys each of which "ㅣ", "·", and "-" are assigned. The method of claim 16, The vowel conversion key is A Hangul input device using a conversion key characterized in that corresponds to a "ㅣ" duplicate input function key or "·" duplicate input function key. delete The method of claim 17, The letter combination means, When the vowel conversion key is selected before or after "|" or "-", it is determined as "." Duplicate input function key. When the vowel conversion key is selected before or after "." Or "." Hangul input device using a conversion key characterized in that the combination of characters to perform a combination of characters determined. In the Hangul consonant input method applied to the Hangul input device, A basic consonant input step of recognizing a basic consonant corresponding to the basic consonant key selected by the user as an input consonant; And When the consonant conversion key is selected by the user, a consonant conversion to change the input consonant by selecting any one consonant according to the number of selection of the consonant conversion key in the consonant group consisting of the recognized basic consonant and the corresponding extended consonant Including steps, The consonant conversion step, And converting the consonant when the consonant conversion key is selected after the initial consonant and the neutral are input, and changing the finality when the consonant conversion key is selected after the initial consonant and the neutral and the final consonant are input. Hangul consonant input method using. The method of claim 20, The consonant group is, ㄱ, ,, ㄷ, ㄷ, ㅌ, ㄸ, ㅇ, ㅅ, ㅆ, ㄴ, 」, ㅁ, ㅂ, ㅃ, ㅈ, ,, ㅍ, and ㅍ, Hangul consonant input method using a conversion key, characterized in that any one of ㅎ 」. The method of claim 20, The consonant group is, ㄱ, ,, ㄷ, ㄷ, ㅌ, ㄸ, ㅇ, ,, ㅅ, ,, ㅆ, ㄴ, 」, ㅁ, ㅂ, ㅃ, and ㅈ, ,, Hangul consonant input method using a conversion key, characterized in that any one of. delete In the Korean vowel input method applied to a Korean input device comprising a plurality of basic vowel keys assigned to the basic vowel elements ("ㅣ, ㅡ, ㆍ") and a vowel conversion key assigned to the double vowel elements, A checking step of confirming a basic vowel element corresponding to the selected basic vowel key when the basic vowel key and the vowel converting key are continuously selected; A first input step of generating a first input vowel by recognizing the vowel conversion key as a ".redundant input function key" when the checked basic vowel element is "|" or "-"; And A second input step of generating a second input vowel by recognizing the vowel conversion key as a " duplicate input function key " when the checked basic vowel element is one or two ". &Quot; Hangul vowel input method using a conversion key including a. The method of claim 24, The first input step, If the vowel conversion key is selected after the "ㅣ" key is selected, the "ㅑ", If the "ㅣ" key is selected after the vowel conversion key is selected, "ㅕ", When the vowel conversion key is selected after the "-" key is selected, "ㅠ", If the "-" key is selected after the vowel conversion key is selected, "ㅛ" Hangul vowel input method using the conversion key, characterized in that for generating the first input vowel. The method of claim 24 or 25, The second input step, If the vowel conversion key is selected after the "•" key is selected, "ㅔ", If the "." Key is selected after the vowel conversion key is selected, "ㅐ", If the vowel conversion key is selected after two ". &Quot; keys are selected, " ㅖ " If two "·" keys are selected after the vowel conversion key is selected, "ㅒ" is selected. Hangul vowel input method using a conversion key, characterized in that for generating the second input vowel.

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