KR20020044105A - Method for input character of cellular phone - Google Patents

Abstract

PURPOSE: A method for inputting characters in a mobile terminal is provided to improve the convenience and time reduction of letter combination by selectively and separately allocating basic letters, composed of combinations of basic consonants and basic vowels, in an array of keys in a mobile terminal and creating characters using one or more of the basic letters. CONSTITUTION: A system for inputting characters in a mobile terminal is composed of a keypad part(1), a memory part(3), a central control part(5), and a display part(7). The keypad part(1) comprises input keys generating relevant character input signals according to a user's push operations and function keys generating relevant character conversion signals according to the user's push operations. The memory part(3) stores consonants and vowels related to the Hangul characters allocated to the keypad part(1). The central control part(5) appoints relevant character data stored in the memory part(3) according to a character input signal or a character conversion signal supplied from the keypad part(1) and outputs an associated control signal. The display part(7), operated by a character conversion control signal outputted from the central control part(5), displays a character corresponding to a relevant input key. Also the display part(7), operated by a character input control signal outputted from the central control part(5), displays an associated character.

Description

Method for input character of cellular phone

The present invention relates to a character input method of a mobile communication terminal, and in particular, to generate a character by using at least one or more basic characters formed by combining each of the consonants and vowels set in advance in the mobile communication terminal, or consonants and vowels in the basic characters The present invention relates to a character input method of a mobile communication terminal configured to generate characters by an additional combination of the two.

Recently, with the introduction of digital cell phone service, various information terminals that need to send and receive text along with text service through the phone have been developed, and various methods have been developed to try to enter text using only the keyboard of the phone, not the computer keyboard. As information and communication devices become smaller, the number of input buttons decreases. However, as the function is improved in inverse proportion to the reduction in size, the necessity of inputting characters continues to increase.

If Hangul is based on the unification of Hangul spelling, Choseong is a, b, c, d, ㅁ, ㅂ, ㅅ, ㅇ, ㅈ, ㅁ, ㅋ, ㅌ, ッ, ㅎ, and neutral is ㅏ, ㅑ, ㅓ, ㅕ, ㅗ, ㅛ, ㅜ, ㅠ, ㅡ, ㅣ, ㅐ, ㅒ, ㅔ, ㅖ, ㅘ, ㅙ, ㅚ, ㅝ, ㅞ, ㅟ, ㅢ, and the finality is a, b, c, d, ㅁ, It consists of ㅂ, ㅅ, ㅇ, ㅈ, ㅋ, ㅋ, ㅌ, ッ, ㅎ, ㄱㅅ, ㄴㅈ, ㅎㅎ, ㄹㄱ, ㄹㅁ, ㄹㅅ, ㄹㅌ, ㄹㅍ, ㄹㅎ, ㅂㅅ. The number of theoretical letters that can be theoretically formed by combining initial, neutral, and final is 11,172 characters, but the actual number of commonly used letters is about 2,500 characters, and the most commonly used completed codes or combination codes range from 1,800 to 1,900 characters. I can express Hangul. In the existing code system, when the keyboard is input, ㄲ, ㄸ, ㅃ, ㅆ, ㅉ and ㅑ, ㅕ, ㅛ, ㅠ, ㅔ, ㅖ, ㅐ, ㅒ are allotted. In order to display the Hangul as a complete Hangul using the keys of the terminal, there are about 12 keys (1, 2, 3, 4, 5, 6, 7, 8, 9, 0, *, #) provided in the terminal. Inputs corresponding to consonants and vowels of.

Accordingly, since a number of characters such as Korean and English characters must be input with a limited input button, a plurality of characters are assigned to a single button, and the selected characters are continuously pressed to select a corresponding character.

For example, a mobile phone, which is a small and generalized product using a Korean input device, is used. As the character input keys of the mobile phone are used in a limited number, it is necessary to assign several consonants, vowels, and English characters to a single button. Select one letter by finding consonants, vowels or English letters to input from the buttons and pressing the button as many times as necessary, and then move to the next space with the cursor movement keys, and then select the next letter in the same way as above. do. This method is very inconvenient because the user does not input the characters but combines the characters one by one, making it difficult to input a large amount of characters because the input method is difficult, and it is possible to input Korean and English characters continuously. Character input is very inconvenient.

In addition, at least 24 letters, including 14 consonants and 10 vowels, are required to fully implement Hangul. However, since the phone keyboard contains only 12 special symbols, at least two letters are assigned to each number. For this reason, complicated rules have been proposed to determine which of the two or three letters written on the keyboard should be applied when a particular keyboard is pressed.

Because of these rules, the process of assembling letters as you think about the letters you need to type is very complicated, not easy, and there are twelve keyboards to enter the letters because there is a mixture of letters that are frequently used and not frequently used in the composition of the keyboard. It is often uncomfortable to input frequently used consonants or vowels because of the fact that they are used up and down diagonally and the frequency of Hangul alphabet is not considered at all.

Accordingly, an object of the present invention is to set a, b, c, r, ㅁ, ㅂ, ㅅ, ㅇ, ㅈ, ㅋ, ㅋ, preset in the mobile communication terminal in order to improve the ease and time reduction of the letter combination when entering letters 키, 상기, ㅎ, ㄲ, ㄸ, ㅃ, ㅆ, ㅉ key provided in the terminal by combining the basic letters consisting of one each from the basic vowel consisting of ㅏ, ㅓ, ㅗ, TT, ㅡ, ㅣ 문자, ㅕ, ㅛ, ,, ㅐ, ㅒ, 할당, 할당, ㅕ, ㅛ, ㅠ, ㅒ, 할당, or 할당, 분리, 된, 된, 생성, or 된, 선택, 된, ㅒ, ㅒ The present invention provides a character input method of a mobile communication terminal configured to generate characters by using an extended collection consisting of, ㅘ, ㅙ, ㅚ, ㅝ, ㅞ, ㅟ, 및 and an optional additional combination of the basic consonants.

1 is a block diagram schematically showing the configuration according to the character input of the mobile communication terminal of the present invention.

2 is a view showing the configuration of a keypad showing a pseudo group according to an embodiment of the present invention.

3 is a view showing the configuration of a keypad showing a solid group according to an embodiment of the present invention.

4 is a view showing the configuration of a keypad showing a group of English characters according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1: Keypad 3: Memory

5: control unit 7: display unit

10, 11, 12: Keypad 10c, 11c, 12c: Left function key

10f, 11f, 12f: Move key 10g, 11g, 12g: General key

Character input method of the mobile communication terminal for achieving the above object of the present invention,

In the character input method of the mobile communication terminal, a basic character consisting of any combination selected from each of the consonant group and the vowel group is formed on the numeric keys and the left and right function keys of the mobile communication terminal, Characterized by the combination of the optional characters, characterized in that the basic letters, a, b, c, d, d, ㅁ, ㅂ, ㅅ, ㅇ, ㅈ, ㅊ, ㅋ, ㅌ, ッ, ㅎ Consonant group and any one selected from the basic consonant group consisting of ㄸ, ㄸ, ㅃ, ㅆ, ㅉ and the basic vowel selected from 기본, ㅓ, ㅗ, TT, ㅡ, ㅣ Characterized in that, the basic collection includes an extended collection consisting of ㅑ, ㅕ, ㅛ, ㅠ, ㅐ, ㅒ, ㅔ, ㅖ, ㅘ, ㅙ, ㅚ, ㅝ, ㅞ, ㅟ, ,, the basic letters, A, b, c, d, k, k, k, o, k, ㅋ, ㅌ, ッ, ㅎ single consonant group consisting of 및, ㄸ, ㅃ, ㅆ, ㅉ characterized in that the combination consisting of the combination and the 음 of the basic vowel as well as the basic vowel is added to the base letter | And, an extended vowel consisting of ㅖ, ㅖ, ㅓ, ,, ㅘ, ㅕ, ㅑ, ㅒ to replace the basic vowel of the basic letter, and the basic letter is a, b, c, d, d, ,, ㅂ. , ㅅ, ㅇ, ㅈ, ㅊ, ㅋ, ㅌ, ,, ㅎ single consonant group consisting of and ㄲ, ㄸ, ㅃ, ㅆ, 조합 characterized in that it is made in combination with the consonant group and 모 of the basic vowel, The vowel includes an extended vowel consisting of ㅝ, ㅞ, TT, ㅡ, ㅢ, ㅛ, ㅠ which is added to the basic character and replaces the basic vowel of the basic character. A basic vowel combined with the single consonant group and the double consonant group according to an input Switch from ㅗ to ,, from ㅗ to ,, and combine the basic consonant with any one of the basic vowels as a vowel group, set the vowel group to a menu key, and then, The conversion between the vowel groups is made, and the consonant consonants are formed by pressing the basic letter corresponding to the consonant while pressing the number 9 key, and pressing "*" while pressing the key corresponding to the Korean character once And re-display the last character of the Hangul characters arranged on the corresponding key, and press the "*" key while pressing the number 0 key during the Hangul character input on the keypad to switch to the English character input state. By repeatedly pressing the number 0 key in the English character input state, the switching between the uppercase and lowercase English letters is made, the key corresponding to the English letters Pressing once and pressing "*" will not only display the last character of the English characters arranged on that key. Press the number 0 key while pressing the "*" key to switch to Korean character input mode. Press the left function key "*" for more than the set time to proceed to the special character mode. In the special character mode, the special characters stored in each key. And outputting the table to select the corresponding special character, and pressing the right function key "#" for more than the set time proceeds to the numeric character mode, and selects and displays the numeric character displayed on each key in the numeric character mode; Simultaneously press the left function key "*" while pressing the right function key "#" to copy the last character entered.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 is a block diagram schematically showing a configuration according to a character input of a mobile communication terminal of the present invention. Referring to FIG. 1, a keypad unit 1 including an input key for generating a corresponding character input signal according to a user's pressing and a function key for generating a signal for converting a corresponding character according to a user's pressing And a memory part (3) configured to store various characters according to the usage and additional functions, which are stored in alphabets related to the Hangul characters to be assigned to the keypad part (1), and the keypad (1). Characters output from the central control unit 5 and the central control unit 5 to designate the corresponding character data stored in the memory unit 3 and output a control signal according to the character input and the character conversion signal applied by In response to a conversion control signal, a character corresponding to an input key of the keypad 1 is displayed and according to a character input control signal output from the central controller 5. Small to have been composed of a display unit 7 for displaying the characters.

The keypad 1 performs a key operation for Korean input using the general key 10g, and then applies an additional key in the Korean input state to the central controller 5 and the memory 3. Will be done. The general key 10g is an input key 10a, 11a, 12a and function keys 10c, 11c, 12c, 10d, 11d, 12d, which are required in the present invention, including menus, calls, confirmation, termination, and clearing. 12e) means keys other than self-explanatory.

First, "*" of the keys arranged on the keypad 1 in the Hangul input state corresponds to the function keys (10c, 11c) assigned to enable the switching between the groups, mutually between groups according to repeated pressing The corresponding signal is generated to the central control unit 5 so that it can be switched, and it is switched to the function of the support combination by holding down the number 9 key among the keys assigned to the extended collection to display the support when entering Korean. By pressing a letter, you can mark the base.

In addition, switching function for English character input during Hangul input is possible to switch from Hangul input to English character input by pressing left function key (10c, 11c) "*" while pressing No. 0 key among extended keys. The corresponding signal is generated to the central control unit 5 so as to. In addition, while pressing the left function key (12c) "*" while pressing the English character input key 0e (12e) at the same time, it is converted into Korean input again.

On the other hand, pressing the 0 key (12e) repeatedly in the state of switching from the Hangul input to the English characters to generate a corresponding signal to the central control unit (5) to switch between the case of the English characters.

On the other hand, in order to shorten the repeated pressing of three times the corresponding numeric key when inputting English characters, by pressing the corresponding one time number and pressing the left function key "*", the signal capable of three consecutive pressing functions of the corresponding key is provided. Is generated. In addition, when entering Korean, English or special characters, the last character displayed by pressing the right function key (10d, 11d, 12d) "#" continued left function key (10c, 11c, 12c) "*" Redisplay characters such as

In addition, to display the special characters, press the left function key (10c, 11c, 12c) "*" Numeric key while pressing the key. Then, the special character string included in the corresponding numeric key is displayed. Press the number key corresponding to the line again to display.

2 is a view showing the configuration of a keypad showing a pseudo group according to an embodiment of the present invention. Referring to FIG. 2, as shown in Table 1, the number keys and the number of pressing are divided and allocated.

A user is set to an initial group in a state where the user can input Hangul by manipulation of general keys 10g, 11g, 12g of the mobile communication terminal. Allocates the basic character group consisting of ah, jha, tea, car, ta, wave, ha, ka, ta, bar, sa, and ja to be separated in the array of number keys from 1 to 8. The vowel group extended collection including + ㅣ, ㅔ, ㅖ, ㅓ, ㅣ, ㅘ, ㅕ, ㅑ, ㅒ according to the basic group basic letter is selectively assigned to the 9, 0, # keys, and the basic of the group It is configured to generate Korean characters selectively according to the number of times that the number key is pressed. "+ |" Represents the addition of the vowel "|" in the extended group group, and the remaining extended collections perform the function of substitution.

For example, if the number 1 key is pressed once to display the Korean character "" ", the display unit 7 displays the Korean character" "" so that one Korean character is displayed by one key press. do. In the following description, the function of adding and replacing is performed. First, when the Korean character of "dog" is to be input, when the number 1 key is pressed once in the pattern group, the Korean character of "a" is displayed on the display unit 7. By pressing the number 9 key once and adding “ㅣ” to “”, Hangeul characters called “gae” are combined and a single Korean character can be displayed by pressing 2 buttons.

As another example, if you want to input the Korean character "Crab", press the number 1 key once in the model group, and the Korean character "" "is displayed on the display unit 7. As the vowel corresponding to "ㅔ" is replaced with the vowel "ㅏ" in which "is", the Hangul characters called "crab" are combined and a single Hangul character can be displayed by pressing a button three times in total.

On the other hand, there may be an input of the letters "close". First of all, if you want to input the Korean character "" ", press the number 1 key once in the model group, and the Korean character of" "" is displayed on the display (7). If you move to the right, press the number 1 key three times and the Hangul corresponding to "Cha" will be displayed next time. Then, press the number 7 key once to display the Hangul "A" and press the number 0 key 2 When pressed repeatedly, "vo" in the "vo" "ㅏ" is replaced with "| |" and the Hangul "" is displayed as the Hangul characters near "" is displayed. In this case, three Korean letters "close" are pressed by pressing the key once to display "," pressing the key three times to create "Ca", and pressing the key three times to generate "This". Character display is possible.

In addition, the switching between the visible group and the solid group is configured to be possible by repeatedly pressing the left function keys 10c and 11c " * ". It is obvious that this can be configured to be possible.

3 is a view showing the configuration of a keypad showing a solid group according to an embodiment of the present invention. Referring to Figure 3, as shown in Table 2, shown separately according to the number keys and the number of presses.

By the operation of the general key (11g) of the mobile communication terminal in the Hangul input state high, no, degree, furnace, mother, bo, cow, o, ja, cho, nose, toe, gun, ho, bo, The solid group basic letters, consisting of po, saw, and squat, are assigned to be selectively separated within the numeric key arrays of numbers 1 to 8, and thus + ㅣ, ㅝ, ㅞ, TT, ㅡ, ㅢ, The solid group extension collection including ㅛ, ㅠ consists of a solid group extension collection selectively assigned to the above 9, 0, # keys, and selectively according to the number of times the number of key presses corresponding to the solid group basic letters and the expansion collection are pressed. It is configured to generate Korean characters. "+ |" Represents the addition of the vowel "|", and the rest of the expansion bar performs the function of substitution.

For example, if you want to display the Korean character “Goe”, press the number 1 key once in the solid group and the Korean character of “Go” will be displayed on the display unit (7). + ㅣ "is added to" Go ", and the Hangeul character called" Goe "is combined, so it is possible to display one Hangul character by pressing the button twice.

As another example, if you want to display the Korean character "Gong", press the number 1 key once in the solid group and the Korean character of "Go" will be displayed on the display (7). The vowel corresponding to "ㅞ" is replaced with the vowel "ㅗ" in the "go", and the Hangul characters called "Gock" are combined, so that a single Hangul character can be displayed by pressing a total of four buttons. Of course, not all Korean characters are represented by only one consonant and one vowel. Since it is often necessary to combine Hangeul with support, we will look at the generation of Hangeul characters with support. First, as shown in Table 3, the consonants are arranged to correspond to the positions of the consonants forming the basic letters in the group, and the consonants are used.

,,, ,,, ㅁ, ㅂ, ㅅ, ㅇ, ㅈ, ㅁ, ㅋ, ㅌ, ッ, ㅎ which can be used as a support in Hangul and 겹, ㅆ as a support It is configured to be optionally assigned to numeric keys. The assigned consonants and the double consonants are the same as the consonant arrangement of the solid group and the solid group shown in Table 1 or Table 2. In the following example of the display of the stand, when you want to enter the Korean character "Gong", press the number 1 key once in the solid group and the Korean character "Go" will be displayed. Pressing the number 7 key once in the "go" character down "ㅇ" is combined as a support to finally create a Korean character "ball", so that the display of the Hangul characters with a total of two key presses.

On the other hand, it is also possible to press the key three times to display the last Hangul character of the numeric key assigned the Hangul character. In the present invention, the following functions will be added and described. For example, to display the Hangul character "Ko", press the number 1 key ("Go, Ko, Ko") once and press the left function key (11c) "*" once. "Ko" will be displayed. Therefore, it is possible to press continuously by pressing 2 times in total by reducing the number of times possible by pressing 3 times in total. Of course, it will be apparent that the supporting and continuous functions as described above are also applied to the dummy group in FIG. 2. On the other hand, the number 9 key is a simple pressing the corresponding vowels are displayed, but the function here is to simply perform the function of the support combination by pressing.

4 is a view showing the configuration of a keypad showing a group of English characters according to an embodiment of the present invention. Referring to Figure 4, to input the English characters in the Korean input state by the operation of the general key (12g) of the mobile communication terminal to input the English characters using the general key (12g) in the conventional manner After switching to the menu group for inputting the corresponding English characters, and then moved to the group to switch back to Hangul, in the present invention is configured to facilitate the conversion of English characters by a few key input when entering Hangul.

Briefly, the function is configured to immediately switch to the uppercase English letter group by pressing the left function key 12d " * " while pressing the number 0 key in the Hangul input group or the solid group. In addition, as described above, pressing the number 0 key once in the uppercase English letter group converts to the lowercase group, and when the 0th key is pressed again, it is configured to switch to the uppercase group. Of course, by pressing the left function key (12c) "*" and pressing the number 0 key, which is the middle function key, in the reverse order of the key input sequence used when switching to the upper case letter group of English letters, the solid or solid group used immediately before Switched to, you can enter Hangul characters immediately.

For example, in order to display the English letter "A", first press the left function key (12c) "*" while pressing the number 0 key while being converted to the Korean input group set by default. The mode is changed to input mode. At this time, press the number 1 key once to display "A", and press the number 7 key twice to display the English letter "T" and display "T". As described above, it is possible to display by repeatedly pressing the corresponding numeric key to which English characters are assigned to display English characters.

On the other hand, it is also possible to press the key three times to display the last English character of the numeric key assigned the English character. In the present invention, the following functions will be added and described. For example, you can display "C" by pressing the number 1 key (ABC) once ("A") and then pressing the left function key (12c) "*" once to display the English character "C". Will be. Therefore, it is possible to reduce the one time that is possible with a total of three presses and to press a total of two times.

On the other hand, although not shown, since it is generalized to input special characters in addition to Korean and English characters, in the present invention, as shown in Table 4, special characters were formed in a table.

The special character table is configured as an example. In addition, the special character table is switched to the special character input mode while pressing " * " on the left function key 12c to load the special characters corresponding to the line. If you press the number key, that is, the loading key, the corresponding character strings pre-stored in the memory unit 3 are displayed on the display unit 7, and when the selection key corresponding to the column where the corresponding character is located is pressed, the corresponding special character is displayed. do.

For example, " To display "", press the number 1 key (loading) while pressing the left function key (12c) "*" to display the character string corresponding to the number 1 key (loading)

In the special string above, If you press the number 2 key in the corresponding column where "is located, Of course, loading keys and selection keys are used to distinguish rows and columns in the special character table. Applies to columns of special character tables.

In addition, when the loading key is input and a special string stored in the corresponding number is displayed, special characters corresponding to another numeric key are displayed by selectively pressing the direction keys 10f, 11f, and 12f of the keypad unit 1, It is apparent that the user can display the corresponding special character by pressing the selection key, which can be sufficiently applied by a person in the field.

On the other hand, while pressing the right function key (12c) "#" of the keypad (1) in succession by pressing the numeric keys 0 to 9 consecutively configured to display Arabic numerals, as well as the By pressing the left function key 12c "*" while pressing the right function key 12d "#" of the keypad 1, the same characters as the last displayed random characters can be continuously displayed. .

On the other hand, as shown in the figure, the visible group, the solid group, and the English characters are shown in the drawings, respectively, it will be obvious that all appear in the key arrangement of the actual mobile communication terminal.

As described above, in the character input method of the mobile communication terminal according to the present invention, the process of assembling letters is greatly simplified by setting a frequently used alphabet as an initial value, and it is possible to mix Korean, English, special characters, and Arabic numerals. By performing it within the key arrangement, not only is it easier and more convenient, but it also has the advantage of significantly reducing the time by significantly reducing the number of key presses when combining characters. The present invention is not limited to the above-described embodiments, and it will be apparent that many modifications are possible by those skilled in the art within the technical spirit of the present invention.

Claims (18)

In the character input method of the mobile communication terminal, Forming a basic letter consisting of any combination selected from each of the consonant group and vowel group on the numeric key and the left and right function keys of the mobile communication terminal, and displays the corresponding character by the selective combination of the input and the base consonant of the basic character Character input method of a mobile communication terminal, characterized in that. The method of claim 1, The basic letter, a consonant group consisting of a, b, c, d, ㅁ, ㅂ, ㅅ, ㅇ, ㅈ, ㅁ, ㅋ, ㅌ, プ, ㅎ and a double consonant group consisting of ㄲ, ㄸ, ㅃ, ㅆ, ㅉ Character input method of the mobile communication terminal, characterized in that made by combining any one of the basic consonant selected from the basic vowel selected from the basic vowel consisting of ㅏ, ㅓ, ㅗ, TT, ㅡ, ㅣ. The method of claim 2, The basic collection includes a character input of the mobile communication terminal comprising an extended collection consisting of 확장, ㅕ, ㅛ, ,, ㅐ, ㅒ, ㅔ, ㅖ, ㅘ, ㅙ, ㅚ, ㅝ, ㅞ, ㅟ, ㅢ Way. The method of claim 2, The basic letter, a consonant group consisting of a, b, c, d, ㅁ, ㅂ, ㅅ, ㅇ, ㅈ, ㅁ, ㅋ, ㅌ, プ, ㅎ and a double consonant group consisting of ㄲ, ㄸ, ㅃ, ㅆ, ㅉ Character input method of a mobile communication terminal, characterized in that made in combination with the 모 of the basic vowel. The method of claim 4, wherein The basic vowel is a mobile communication terminal comprising ㅣ appended to the basic letter, and an extended collection consisting of ㅔ, ㅖ, ㅓ, ㅣ, ㅘ, ㅕ, ㅑ, 하는 to replace the basic vowel of the basic letter. Character input method of. The method of claim 2, The basic letter, a consonant group consisting of a, b, c, d, ㅁ, ㅂ, ㅅ, ㅇ, ㅈ, ㅁ, ㅋ, ㅌ, プ, ㅎ and a double consonant group consisting of ㄲ, ㄸ, ㅃ, ㅆ, ㅉ Character input method of a mobile communication terminal, characterized in that made in combination with the 모 of the basic vowel. The method of claim 6, The basic vowel is a character of a mobile communication terminal comprising an extended vowel consisting of ㅝ, ㅞ, TT, ㅡ, ㅢ, ㅛ, ㅠ which is added to the basic character and replaces the basic vowel of the basic character. Input method. The method according to claim 4 or 6, Character input method of the mobile communication terminal, characterized in that the basic vowels coupled to the single consonant group and the double consonant group are switched from ㅏ to, and ㅗ to 따라 according to repeated key input of the left function key "* ". The method of claim 2, A combination of the basic consonant and any one basic vowel as a vowel group, the vowel group being set to a menu key, and the mutual switching between the vowel groups is performed by selective input of a menu key Character input method of communication terminal. The method of claim 1, The support consonant is a character input method of a mobile communication terminal, characterized in that the consonant is formed by combining the consonant with the support by pressing the basic letters corresponding to the support while pressing the number 9 key. The method of claim 1, Pressing "*" while pressing the key corresponding to the Hangul character once, the character input method of the mobile communication terminal, characterized in that to display the last character of the Hangul characters arranged on the key. The method of claim 1, While pressing the number 0 key while inputting Korean character on the keypad, press the "*" key to switch to English character input state, and press the number 0 key while pressing the "*" key to switch to the Korean character input state. Character input method of a mobile communication terminal characterized in that. The method of claim 12, Character input method of the mobile communication terminal, characterized in that the switching between the uppercase and lowercase letters of the English letter by repeatedly pressing the number 0 key in the English character input state. The method of claim 12, Pressing a key corresponding to the English letter once and pressing "*" to display the last character of the English letters arranged on the corresponding key character input method of the mobile communication terminal. The method of claim 1, Press and hold the left function key "*" to advance to the special character mode, and select the special character by loading the special character table stored in each key in row or column unit in the special character mode and selecting the corresponding special character. Character input method of the terminal. The method of claim 15, When a row of a special character table stored in each key is displayed, a row of a special character table corresponding to another numeric key is displayed by selectively pressing the direction key to select the corresponding special character accordingly. Character input method of. The method of claim 1, Pressing the right function key "# " proceeds to the numeric character mode, and selects and displays the numeric characters displayed on each key in the numeric character mode; The method of claim 1, Character input method of the mobile communication terminal, characterized in that the last display of the last character entered by pressing the left function key "*" while pressing the right function key "#".