KR20010069805A - Method for inputting characters using key-pad - Google Patents

Abstract

The present invention relates to a method and apparatus for inputting a character using a keypad, and more particularly, only a limited number of buttons such as a mobile phone terminal, a personal digital assistant (PDA), a camcorder, a wristwatch, a television capable of two-way communication, and the like. The present invention relates to a method of easily inputting Korean, English, or Japanese by combining six letter buttons and four arrow buttons in all electronic devices or mechanical devices (hereinafter, referred to as mobile phone terminals). In the case of Korean character input, it consists of combining 5 buttons corresponding to Korean consonant, 1 button corresponding to Korean vowel, and 4 arrow buttons indicating direction. It provides a method for inputting text into a mobile phone terminal, and it is particularly suitable for small mobile phones, PDAs, camcorders, etc. with a small number of buttons because it can be input with only a few buttons. By viewing the characters that can be converted, the user can enter them, reducing typos and easily modifying them.

Description

Character input method using keypad {METHOD FOR INPUTTING CHARACTERS USING KEY-PAD}

The present invention relates to a method of inputting a character using a keypad, and more particularly, having a limited number of buttons such as a mobile phone terminal, a personal digital assistant (PDA), a camcorder, a wristwatch, a television capable of two-way communication, and about 10 buttons. The present invention relates to a method of easily inputting letters of Korean or other languages from a beginner's point of view by combining six letter buttons and four arrow buttons in all electronic devices or mechanical devices (hereinafter, referred to as mobile phone terminals).

In general, unlike a computer keyboard, mobile phone terminals do not have many buttons on the keypad. Therefore, in order to input Korean characters with limited input buttons of about 10, the same button may be pressed several times or a combination of several buttons may be used to create a consonant or You have no choice but to construct a collection. In this case, the user who wants to input Korean characters is assigned to each button with a total of 40 Korean alphabet letters, how many times the desired Korean alphabet letters are input, and a button having a special function after pressing a button for inputting a specific Korean alphabet letter. When you press the number of times (for example, confirm button or capture button), you need to memorize all the Hangul alphabets you want to use. In other words, if you press the button corresponding to the consonant [a] once, [a] is input. If you press twice in succession, [ㄲ] is input. If you press three times in succession, [ㅋ] is input. In the case of configuring the user, the user should not only memorize such an input method but also have to memorize the correct method by pressing the wrong button.

For example, as the method used in LG Cyon (product name), enter [ㅁ, ㅁ] to input [ㅃ] or [ㅅ, ㅅ, ㅅ] to input [ㅉ], In the case of inputting [TT, ㅏ] to input [ㅝ] (Korean Patent Publication No. 2000-0049346), the user will be confused because it is out of general grammar rules and lacks logic. It is difficult to learn easily.

In addition, Samsung Anycall (product name), the so-called 'Cheonjiin method' is being used (Korean Utility Model Registration No. 20-176533-0000) puts a plurality of weakly related characters on one button, so that the user can recall As a difficult way to do this, there is a illogical situation where you have to enter [b, b] to enter [ㄹ] and [ㅅ, ㅅ] to enter [ㅎ], where the first letter is followed by the second letter. Since the first phonemes overlap, for example, if you want to enter [non-no], the rate of error is increased due to the input of [nole]. To prevent this, press the enter key (for example, [→]) or press for about 2 seconds. There is inconvenience such as time difference.

In addition, while the method used in Hyundai Gulliver (product name) (Korean Patent Publication No. 2000-0050253) is similar to the 'Cheonjiin method' described above, the user has to press a separate button at the end of each syllable. Ancillary movements are very cumbersome and inevitable.

As described above, although the above character input method is known to be relatively efficient, it is quick and convenient by lacking grammatical linkage between the phonemes assigned to the same button, by non-legal combination, by time difference, or by pressing a confirmation button. There is a problem against the input method.

In order to solve the problems of the prior art as described above, the present invention comprises a method of combining the Korean input method with five buttons corresponding to the Hangul consonant, one button corresponding to the Hangul vowel and four arrow buttons indicating the direction. By applying this principle to English and Japanese input, it is an object of the present invention to provide a method for a beginner to input text into a mobile phone terminal easily and quickly in a logical association without additional memorization.

1 is a schematic diagram showing each button and display used for character input to explain an embodiment according to the present invention;

2 is a flowchart illustrating a process of inputting or modifying characters according to the present invention;

3 is a table classifying Korean basic characters and extended characters that appear according to the pressed order of buttons;

FIG. 4 is a table illustrating classification of basic English letters and extended letters appearing according to the pressed order of buttons, and a layout view of alphabet letters according to each arrow direction.

FIG. 5 is a table listing Japanese basic characters and extended characters appearing according to the order in which the buttons are pressed, and a layout diagram of Japanese characters according to each arrow direction.

6 is a schematic diagram for explaining an example of character input and an example of correcting a character according to a character previously displayed in accordance with each arrow direction;

7 is a table showing an example of how characters are modified in the order in which the buttons are pressed.

<Description of Drawing>

11 mobile phone terminal, 12 liquid crystal display unit, 13 information display,

14 ... arrow buttons, 15 ... keypad

In order to achieve the above object, in the character input method according to the present invention, Hangeul consonants are similar to each other in the form of typographical consonants and select five representative consonants and one representative vowel composed of basic characters, input the basic characters After the arrow button is pressed, the character is converted into an extended character having a morphological and vocal correlation with the basic character so that a beginner can input a character to a mobile phone terminal in a logical association without additional memorization.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

1 is a schematic diagram showing a keypad and a display attached to a mobile phone terminal as one embodiment of the present invention.

Character input method according to the present invention is a character input method using a keypad, such as a mobile phone terminal, a PDA (Personal Digital Assistant), a camcorder, a wristwatch, a television capable of two-way communication with a few buttons of about 10, As an example, a basic character is assigned to some buttons of a keypad attached to a mobile phone terminal. A basic character is a character that is morphologically and vocally based among various phonemes. For example, [a, b, ㅁ, ㅅ] can be set among consonants, and [ㅡ] or [ㅣ] can be set among vowels. There will be.

As in the case of the mobile phone terminal 10 of FIG. 1, for example, the user may have four basic characters and four arrow buttons 40 assigned to the numbers 1,2,4,5,7,8 of the keypad 40, respectively. You can enter characters using. At this time, the user inputs 6 basic characters with the left index finger and 4 arrow buttons with the right index finger to convert the basic characters into extended characters, so Koreans who are familiar with general computer keyboards can easily access the keypad. It would be more desirable to be able to separately assign a default character corresponding to each button according to the user's preference.

2 is a flowchart illustrating a process of inputting or modifying characters according to the present invention.

The present invention, as shown in the flow chart of Figure 2, in the character input state (S20), if the basic character is input by pressing a button that is set as a basic character as a phoneme, which is a morphological and vocalization base of the received basic character Displaying the extended characters in advance visually (S21), and by pressing the arrow button (S22) to convert the input basic characters to the extended characters (S23), and converted or converted basic characters of the extended characters A step of visually displaying the other extended characters of the extended characters through the display means in advance according to the direction of each arrow (S23), and when the arrow button in the opposite direction of the pressed arrow button is pressed (S24), the converted extended characters are used as the original basic characters. Return to the character, when the arrow button in the other direction is pressed (S24) to modify the converted basic character or the already converted expansion character to another expansion character (S25) Character input method consisting of the process of passing to the state that receives the subsequent character input (S26).

Character input method consisting of Korean consonants and Korean vowels is composed as follows.

Hangeul consonants (子音) should be similar to each other in the form of a consonant, set the five representative consonants as the basic character and press the arrow button to enter the other consonants desired. For example, considering the morphological and vocal correlations of each phoneme, groups similar to [a], groups similar to [b], groups similar to [ㅁ], groups similar to [ㅅ], and similar to [ㅇ] You can classify them into groups and assign them to five buttons in the form of basic Korean consonants, and use the arrow buttons to convert them to other extended characters. It is also desirable to consider the direction of the arrows and the morphological and vocal correlations of the arrows in determining the extended characters that are converted to other extended characters in the same group after entering the basic characters. For example, if something is added in the direction indicated by the arrow in the form of a basic Hangul consonant, it should be decided so that anyone can easily imagine what Hangul consonant will be. In other words, if you press the button corresponding to consonant [a] once, [a] is entered. If you press the button corresponding to [a] and press the up arrow [↑], [ㅋ] is entered, and [a] corresponds to If you press the right arrow [→] after pressing a button, it can be configured to become [ㄲ]. In this way, by considering the direction of the arrow and the mutual morphological and vocal correlations, the user has a basic consonant If you only know the location of the five buttons you enter, you can easily enter consonants.

Even in the case of Korean vowels, one basic vowel button and an arrow button are combined so that the user can enter the vowel form with a similar point to the arrow direction. In this case, one basic vowel can be set to [ㅡ] or [ㅣ]. After pressing the vowel button, press the right arrow [→] to become [ㅏ], and press the vowel button and then press the left arrow [←]. [ㅓ] can be made.

3 is a diagram showing a table according to a combination of six basic characters and an arrow button as an example. As shown in FIG. 3, [a, b, ㅁ, ㅅ, ㅇ, ㅡ] are set as basic characters on six numeric keys of the keypad, and the inputted basic characters are converted into extended characters by pressing an arrow button. As a step, the extended characters converted by pressing the button corresponding to the basic character [a] and then the arrow button are [ㄲ, ㅋ, ㄹ] in morphological and vocal correlations, and correspond to the basic character [b]. After the button is pressed, the extended characters converted by pressing the arrow button are [ㄷ, ㄸ, ㅌ] in morphological and vocal correlations, and the expanded characters are converted by pressing the arrow button after pressing the button corresponding to the basic character [ㅁ]. Characters are [ㅂ, ㅃ,]] in morphological and vocal correlations, and the extended characters converted by pressing the arrow button after pressing the button corresponding to the basic character [ㅅ] are morphological and vocal correlations. [ㅈ, ㅉ, ㅊ, ㅆ], and by default character [ㅇ] The extended characters that are converted by pressing the arrow button after pressing the corresponding button are [ㅎ] in morphological and vocal correlations, and the expanded characters that are converted by pressing the button corresponding to the basic character [ㅡ] and then pressing the arrow button are [ 입력, ㅑ, ㅓ, ㅕ, ㅗ, ㅛ, ㅜ, ㅠ, ㅣ, ㅢ, ㅐ, ㅒ, ㅔ, ㅖ, ㅘ, ㅙ, ㅚ, ㅝ, ㅞ, ㅟ]. At this time, the extended characters [ㄲ, ㅋ, ㄹ] converted from the base character [ㄱ] are converted by pressing [ㄱ →, ㄱ ↑, ㄱ ↓], respectively. ㄸ, ㅌ] are converted by pressing [B ↑, ↑↑ →, ↑↑] respectively, and the extended characters [ㅂ, ㅃ, ッ] converted from the base character [ㅁ] are respectively [ㅁ ↑, ㅁ ↑ →, ㅁ →], and the extended characters [ㅈ, ㅉ, ㅊ, ㅆ] converted from the base character [ㅅ] by pressing [ㅅ ↑, ㅅ ↑ →, ㅅ ↑↑, ㅅ →] respectively. Convert by The extended character [ㅎ] converted from the base character [ㅇ] is converted by pressing [ㅇ ↑], and the extended characters [ㅏ, ㅑ, ㅓ, ㅕ, ㅗ, ㅛ, ㅜ, ㅠ, ㅣ, ㅢ, ㅐ, ㅒ, ㅔ, ㅖ, ㅘ, ㅙ, ㅚ, ㅝ, ㅞ, ㅟ] are [ㅡ →, ㅡ →→, ㅡ ←, ㅡ ←←, ㅡ ↑, ㅡ ↑ ↑, ㅡ ↓, ㅡ ↓↓, ㅡ ㅡ, ㅡ ㅡ ㅡ, ㅡ → ㅡ, ㅡ →→ ㅡ, ㅡ ← ㅡ, ㅡ ←← ㅡ, ㅡ ↑ →, ㅡ ↑ → ㅡ, ㅡ ↑ ㅡ, ㅡ ↓ ← It will be advantageous for beginners to input from the form and utterance of Hangul characters, by converting by pressing, ㅡ ↓ ← ㅡ, ㅡ ↓ ㅡ].

On the other hand, as a step of displaying the extended characters of the base character in advance and a step of displaying the base characters or other extended characters of the extended character in advance, for example, the liquid crystal display attached to the mobile terminal or the like in accordance with the direction of the arrow to the converted extended characters It is preferable to have the guide display unit 13 in the device 12 and to display the characters to be displayed in advance by pressing the arrow buttons according to the direction of each arrow. You can do it.

For example, a part of the display device 12 of FIG. 6 (a) has a guide display unit 13 so that when the user inputs [b], [c] is displayed on the up arrow [↑] of the guide display unit 13. Since it is displayed, the user can convert to [C] by pressing the up arrow [↑] with reference to the guide display unit. In this case, the guide display unit 13 of FIG. Correspondingly [ㅌ, ㄸ,]] is displayed. When the user presses the right button [→], it is converted to [ㄸ] (Fig. 6 (c)). At this time, [C] is displayed on the left arrow [←] in the guide display unit 13, and if the user presses the left arrow [←], the user will return back to [B]. In the [ㄸ] state, when the user presses the vowel button [ㅡ] or [ㅣ], it is converted to [float] or [strap], and the guide display unit 13 displays an expanded collection corresponding to each arrow direction (FIG. 6 ( d)). As shown in FIG. 6 (e), when the user presses the right arrow [→], it will become [ta].

7 is a table showing an example of a correction method for an incorrectly input character.

When the user inputs a button corresponding to each Hangul character and accidentally presses the arrow button by mistake, the user can focus on the characteristics of the arrow to correct and re-enter it. For example, when the converted extended character is to be modified into another character, the arrow in the opposite direction to the pressed arrow button is referred to by the letter displayed in accordance with each arrow direction in the guide display unit 13 of the display device 12. By pressing the button, it is possible to return to the original basic character or extended character again, and in this state, referring to the characters displayed on the display means according to the direction of each arrow, additionally pressing another arrow button displayed on the guide display portion 13 again causes another expansion. You can also convert it to a character. For example, if a person who wants to input [ㄲ] becomes [ㅋ] by inputting [ㄱ, ↑], it can modify to [ㄲ] by inputting [↓, →].

On the other hand, the same principle can be applied to the method of inputting English characters as well as the method of inputting Korean characters through the keypad. Figure 4 (a) is a table consisting of English consonants and English vowels, Figure 4 (b) is a view showing the basic characters of the alphabet and the corresponding extended characters according to the direction of the arrow for each basic character.

Referring to the table of FIG. 4 (a), [A, F, K, P, U, Z] are assigned to each of the six numeric keys of the keypad as basic characters, and input by pressing an arrow button. In the step of converting the converted basic characters into extended characters, the extended characters converted by pressing the button corresponding to the basic characters [A] and then the arrow buttons are respectively [B, C, D, E], and the basic characters [F ] Is converted from [G, H, I, J], and is converted from base character [K] is [L, M, N, O], and is converted from base character [P] Is [Q, R, S, T], and the extended characters converted from the basic character [U] can be composed of [V, W, X, Y].

At this time, as an example of a specific sequence converted to the combination of each basic character and the arrow button, the extended characters [B, C, D, E] converted from the basic character [A] are respectively [A →, A ←, A] ↑, A ↓] to convert, and the base characters [F] to [G, H, I, J] are converted by pressing [F →, F ←, F ↑, F ↓] respectively, and The letters [K] to [L, M, N, O] are converted by pressing [K →, K ←, K ↑, K ↓], respectively, and the basic characters [P] to [Q, R, S, T]. ] Are converted by pressing [P →, P ←, P ↑, P ↓] respectively, and the extended characters [V, W, X, Y] converted from the base character [U] are respectively [U →, U ← , U ↑, U ↓] can be configured to be converted by pressing, can be configured in a different order, as well as can be applied in the case of lowercase. As shown in FIG. 6 (f, g, h), when the user wants to input [ab], the user may input in the order of [a, a, →], and in the state shown in FIG. aa] can be corrected by pressing [←] with reference to the bar guided by the guide display unit 13.

On the other hand, the same principle can be applied to the method of inputting the Japanese sentence through the keypad. FIG. 5 is a table composed of hiragana as an example of the present invention, and 10 numeric keys on the keypad are basic characters as [あ, か, さ, た, な, は, ま, や, ら, わ] Is assigned to each one. Referring to Figure 5, in the step of converting the basic characters input by pressing the arrow button to the extended character, the extended characters converted by pressing the button corresponding to the basic character [あ] after pressing the arrow button [い] , う, え, お, ぁ, ぃ, ぅ, ぇ, ぉ], and the extended characters that are converted by pressing the arrow button after pressing the button corresponding to the basic character [か] are [き, く, け, こ, が]. , ぎ, ぐ, げ, ご], and the extended characters that are converted by pressing the button corresponding to the basic character [さ] and then the arrow button are [し, す, せ, そ, ざ, じ, ず, ぜ, ぞ. ], The extended character that is converted by pressing the button corresponding to the basic character [た] and then the arrow button is [ち, つ, て, と, だ, ぢ, づ, で, ど, っ], and the basic character [ After the button corresponding to な], the extended characters that are converted by pressing the arrow buttons are [に, ぬ, ね, の], and the button corresponding to the basic character [は]. After pressing, the extended characters that are converted by pressing the arrow buttons are [ひ, ふ, へ, ほ, ば, び, ぶ, べ, ぼ, ぱ, ぴ, ぷ, ぺ, ぽ], and correspond to the basic character [ま]. After the button is pressed, the extended characters that are converted by pressing the arrow button are [み, む, め, も]. The extended characters that are converted by pressing the arrow button after the button corresponding to the basic character [や] are [ゆ, よ, ゃ, ゅ, ょ], press the button corresponding to [ら], and press the arrow button to convert the expanded characters to [り, る, れ, ろ], and press the button corresponding to the basic character [わ]. Character extension method characterized in that the expansion character is converted by pressing the arrow button after [を, ゎ, ん].

At this time, as an example of the specific sequence converted to the combination of each basic character and the arrow button, the extended characters converted from the basic character [あ] [い, う, え, お, ぁ, ぃ, ぅ, ぇ, ぉ] Are expanded by pressing [あ →, あ ←, あ ↑, あ ↓, あ *, あ * →, あ * ←, あ * ↑, あ * ↓], respectively, and are converted from the base character [か]. The letters [き, く, け, こ, が, ぎ, ぐ, げ, ご] are respectively [K →, ←, ↑, ↑, ↓, ##, ## →, ## ←, ## ↑,か # ↓] and the extended characters [し, す, せ, そ, ざ, じ, ず, ぜ, ぞ] converted from the base character [さ] are respectively [さ →, さ ←, さ]. ↑, さ ↓, さ #, さ # →, サ # ←, サ # ↑, さ # ↓] and converted from the base character [た] and expanded from the base character [た] [ち, つ, て, と,だ, ぢ, づ, で, ど, っ are [た →, た ←, ↑↑, た ↓, た #, た # →, た # ←, た # ↑, た # ↓, た *] respectively. By pressing And the extended characters [に, ぬ, ね, の] are converted by pressing [な →, な ←, な ↑, な ↓], respectively, and the base character [は] 확장,, へ, へ, ほ, び, ぶ, べ, ぼ, ぱ, ぴ, ぷ, ぺ, ぽ] converted from [H →,, ←, は, ↓] #, は # →, ← # ←, ## ↑, ## ↓, は, →→, ←, ← ↓, ↑, ↓, and ↓, converted from the base character [ま]. The extended characters [み, む, め, も] are converted by pressing [ま →, ま ←, ま ↑, ま ↓], respectively, and the extended characters [ゆ, よ,ゃ, ゅ, ょ] are converted by pressing [や ←, YA ↓, YA *, YA * ←, YA * ↓] respectively, and are expanded from the base character [ら] [り, る, れ,ろ] is expanded by pressing [ら →, ら ←, ら ↑, ら ↓] respectively and converted from the base character [わ] The characters [を, ゎ, ん] can be configured to be converted by pressing [わ ↓, わ *, わ * ↓] respectively, and can be configured in a different order, as well as in Katakana. The same may be applied to the case. As shown in FIG. 6 (i, j, k), when the user wants to input [あ う], the user inputs in the order of [あ あ ←], and the user enters [あ あ] in the state shown in FIG. 6 (k). In order to return back, it can be corrected by pressing [→] with reference to the bar guided by the guide display unit 13. In addition, when entering a Japanese text, an arrow button [→], an arrow button [←], an arrow button [↑], an arrow button [↑], an arrow button [↓], It may be desirable to mark it.

The description of the present invention has been described with reference to a method of inputting Korean characters, but the present invention is not limited to Korean characters, and language characters of other countries other than Korean, English, and Japanese may be used without departing from the scope of the technical idea of the present invention. Of course, even if applied to belong to the present invention.

According to the present invention, a user inputs a morphological and logical association by combining a button corresponding to a Korean consonant, a button corresponding to a Korean consonant, a button corresponding to a Korean vowel, and four arrow buttons indicating a direction. It provides a way to easily and quickly enter text into a mobile phone terminal, and it is particularly suitable for small mobile phones, PDAs, camcorders, etc., with a keypad having a small number of buttons, because only 10 buttons can be input.

Even if the user is a beginner, the user can see the characters that can be converted in the forward direction according to the direction of the arrow, and the user can input them, thereby reducing typos and easily modifying them.

Claims (7)

In the character input method using a keypad assigned a basic character consisting of phonemes that are a morphological or vocal basis and extended characters consisting of morphologically or phonetically related phonemes from the basic character, When the basic character is input by pressing a button of the keypad in which the basic character is set, visually displaying the extended character of the input basic character through display means according to the direction of each arrow; Converting the input basic character into an extended character by pressing the arrow button; Visually displaying the basic characters of the converted extended characters or other extended characters of the converted extended characters through display means in advance according to the direction of each arrow; When the arrow button in the opposite direction of the pressed arrow button is pressed, the converted extended character is returned to the original basic character, and when the arrow button in the other direction is pressed, the converted basic character or the converted extended character is modified to another extended character and converted. Character input method comprising the step of making. The method of claim 1, The character is composed of Hangul consonants and Hangul vowels, [N, B, ㅁ, ㅅ, ㅇ, ㅡ] are assigned to each of the six numeric keys of the keypad as basic characters. In the step of converting the input basic character to the extended character by pressing the arrow button, the extended character is converted by pressing the arrow button after the button corresponding to the basic character [a] is morphological, spoken correlation [ㄲ, ㅋ, ㄹ] in the relationship, and the expansion character is converted by pressing the button corresponding to the basic character [b] and then the arrow button is the [,, ㄸ, ㅌ] having a morphological and vocal correlation The extended characters converted by pressing the button corresponding to the basic character [ㅁ] and then pressing the arrow button are [ㅂ, ㅃ, プ] in morphological and vocal correlations, and correspond to the basic character [ㅅ]. After the button is pressed, the extended characters that are converted by pressing the arrow buttons are [ㅈ, ㅉ, ,, ㅆ] in morphological and vocal correlations, and then press the arrow button after pressing the button corresponding to the basic character [ㅇ]. Click to convert extension Is [H] in morphological and vocal correlation, and the extended characters converted by pressing the arrow button after the button corresponding to the basic character [ㅡ] are [], ㅑ, ㅓ, ㅕ, ㅗ, ㅛ, TT, ㅠ, ㅣ, ㅢ, ㅐ, ㅒ, ㅔ, ㅖ, ㅘ, ㅙ, ㅚ, ㅝ, ㅞ, ㅟ]. The method of claim 2, The extended characters [ㄲ, ㅋ, ㄹ] converted from the basic characters [a] are converted by pressing [ㄱ →, ㄱ ↑, ㄱ ↓], respectively. The extended characters [ㄷ, ㄸ, ㅌ] which are converted from the basic characters [b] are converted by pressing [b ↑, ㄷ ↑ →, ㄷ ↑↑], respectively. The extended characters [ㅂ, ㅃ, ッ] converted from the basic character [ㅁ] are converted by pressing [ㅁ ↑, ㅁ ↑ →, ㅁ →], respectively. Extended characters [ㅈ, ㅉ, ㅊ, ㅆ] which are converted from the basic characters [ㅅ] are converted by pressing [ㅅ ↑, ㅅ ↑ →, ㅅ ↑↑, ㅅ →], respectively. The extended character [ㅎ] converted from the basic character [ㅇ] is converted by pressing [ㅇ ↑], Extended characters [ㅏ, ㅑ, ㅓ, ㅕ, ㅗ, ㅛ, TT, ㅠ, ㅣ, ㅢ, ㅐ, ㅒ, ㅔ, ㅖ, ㅘ, ㅙ, ㅚ, ㅝ, ㅞ, ㅟ] means [ㅡ →, ㅡ →→, ㅡ ←, ㅡ ←←, ㅡ ↑, ㅡ ↑↑, ㅡ ↓, ㅡ ↓↓, ㅡ ㅡ, ㅡ ㅡ ㅡ, ㅡ → ㅡ, ㅡ →→ ㅡ, ㅡ Character input method characterized by being converted by pressing ← ㅡ, ㅡ ←← ㅡ, ㅡ ↑ →, ㅡ ↑ → ㅡ, ㅡ ↑ ㅡ, ㅡ ↓ ←, ㅡ ↓ ← ㅡ, ㅡ ↓ ㅡ]. The method of claim 1, The letter is composed of English consonants and English vowels, [A, F, K, P, U, Z] is assigned to each of the six numeric keys of the keypad as basic characters. In the step of converting the input basic character into an extended character by pressing the arrow button, the extended character converted by pressing the arrow button after the button corresponding to the basic character [A] is converted to [B, C, D , E], and after pressing the button corresponding to the basic letter [F], the extended characters converted by pressing the arrow button are [G, H, I, J], and the button corresponding to the basic letter [K] is pressed. The extended characters converted by pressing the arrow button afterwards are [L, M, N, O], and the extended characters converted by pressing the arrow button after the button corresponding to the basic letter [P] are [Q, R, S, T], and after the button corresponding to the basic character [U] is expanded, the extended characters converted by pressing an arrow button are [V, W, X, Y]. The method of claim 4, wherein The extended characters [B, C, D, E] converted from the basic characters [A] are converted by pressing [A →, A ←, A ↑, A ↓], respectively. The extended characters [G, H, I, J] converted from the basic characters [F] are converted by pressing [F →, F ←, F ↑, F ↓], respectively. Extended characters [L, M, N, O] converted from the basic character [K] are converted by pressing [K →, K ←, K ↑, K ↓], respectively. Extended characters [Q, R, S, T] converted from the basic characters [P] are converted by pressing [P →, P ←, P ↑, P ↓], respectively. Extended characters [V, W, X, Y] converted from the basic character [U] are converted by pressing [U →, U ←, U ↑, U ↓], respectively. The method of claim 1, The letter consists of one sentence, Ten numeric keys of the keypad are assigned with each of [A, か, さ, た, な, は, ま, や, ら, わ] as basic characters. In the step of converting the input basic character into an extended character by pressing the arrow button, the extended character that is converted by pressing an arrow button after pressing the button corresponding to the basic character [あ] is [い, う, え, お, ぁ, ぃ, ぅ, ぇ, ぉ], and the extended characters that are converted by pressing the arrow button after the button corresponding to the basic character [か] are [き, く, け, こ, が, ぎ, 확장, げ, ご], and the extended characters converted by pressing the button corresponding to the basic character [さ] and then the arrow button are [し, す, せ, そ, そ, じ, ず, ぜ, ぜ]. , After pressing the button corresponding to the basic character [た], the extended characters that are converted by pressing the arrow buttons are [ち, つ, て, と, だ, ぢ, づ, で, ど, っ], and the basic characters [ After the button corresponding to な], the extended characters that are converted by pressing the arrow buttons are [に, ぬ, ね, の]. After pressing the button corresponding to [は], the extended characters that are converted by pressing the arrow buttons are [ひ, ふ, へ, ほ, ば, び, ぶ, べ, ぼ, ぱ, ぴ, ぷ, ぺ, ぽ]. After pressing the button corresponding to the basic character [ま], the extended characters that are converted by pressing the arrow button are [み, む, め, も], and after pressing the button corresponding to the basic character [や] and pressing the arrow button The extended characters to be converted are [ゆ, よ, ゃ, ゅ, ょ], and the extended characters are converted to [り, る, れ, ろ] by pressing the arrow button after the button corresponding to the basic character [ら]. , After the button corresponding to the basic character [わ] is pressed, the extended characters that are converted by pressing the arrow buttons are [を, ゎ, ん]. The method of claim 6, The extended characters [い, う, え, お, ぁ, ぃ, ぅ, ぇ, ぉ] converted from the basic characters [あ] are respectively [あ →, あ ←, あ ↑, あ ↓, あ *, あ * →, あ * ←, あ * ↑, あ * ↓] to convert Extended characters [き, く, け, こ, が, ぎ, ぐ, げ, ご] which are converted from the basic characters [か] are respectively [K →, K ←, K ↑, K ↓, K #, K #] →, か # ←, か # ↑, か # ↓] to convert The extended characters [し, す, せ, そ, ざ, じ, ず, ぜ, ぞ] converted from the basic characters [さ] are respectively [さ →, さ ←, さ ↑, さ ↓, さ #, さ # →, さ # ←, さ # ↑, さ # ↓] to be converted, The extended characters [ち, つ, て, と, だ, ぢ, づ, で, ど, っ] converted from the basic characters [た] are respectively [た →, た ←, た ↑, た ↑, た ↓, By pressing た # →, た # ←, た # ↑, た # ↓, た *], The extended characters [に, ぬ, ね, の] converted from the basic character [な] are converted by pressing [な →, な ←, な ↑, な ↓], respectively. Extended characters [ひ, ふ, へ, ほ, ば, び, ぶ, べ, ぼ, ぱ, ぴ, ぷ, ぺ, ぽ] converted from the basic characters [は] are respectively [は →, は ←, は] ↑, ha ↓, ha #, ha # →, ha # ←, ha # ↑, ha # ↓, ha, haha →, ha ←, ha ↑, ha ↓] The extended characters [み, む, め, も] which are converted from the basic character [ま] are converted by pressing [ま →, ま ←, ま ↑, ま ↓], respectively. Extended characters [ゆ, よ, ゃ, ゅ, ょ] converted from the basic character [や] are converted by pressing [や ←, YA ↓, YA *, YA * ←, や * ↓], respectively. The extended characters [り, る, れ, ろ] which are converted from the base character [ら] are converted by pressing [ら →, ら ←, ら ↑, ら ↓], respectively. The extended characters [を, ゎ, ん] converted from the base character [わ] are converted by pressing [わ ↓, わ *, わ * ↓], respectively.