KR20080020759A - Apparatus for inputting letter and symbol - Google Patents

Abstract

An apparatus for inputting letters and symbols is provided to enable a user to input characters like in a short message more conveniently by enabling the same syllables or words to be inputted via less strokes such that durability of a keypad can increase. An apparatus for inputting letters and symbols comprises keys(111~122) and a display unit. In a Korean letter input mode, a user pushes the keys once, twice or three times, and then the apparatus inputs consonants or vowels printed on an upper face of each key. For example, if the user inputs the first key(111), the apparatus displays one Korean consonant, '±Ý' on the display unit. If the user inputs the first key twice continuously, the apparatus displays the other Korean consonant, '± ' on the display unit. In case that a key is for inputting a fortis, the user pushes the key to which a consonant corresponds and then pushes the twelfth key(122), namely a switch key where a 'switch' is printed for switching a consonant into a corresponding fortis. In case of inputting a diphthong, the user pushes a key on which a corresponding vowel is printed, and then pushes the twelfth key. In case of inputting frequently used symbols like a period mark and a question mark, the user continuously pushes the tenth key(120) and the eleventh key(121).

Description

Character and symbol input device {APPARATUS FOR INPUTTING LETTER AND SYMBOL}

1 is a block diagram of a character and symbol input apparatus according to an embodiment of the present invention;

2 is a view showing an example of a keypad unit according to an embodiment of the present invention;

3 is a view showing an example of a conventional keypad unit

The present invention relates to a character input device capable of easily inputting characters such as Korean, English, and symbols by properly arranging consonants and vowels of Korean characters on a numeric keypad.

With the development of communication and information technology, various types of portable communication terminals have been introduced. These terminals generally use the numeric keypad as a character input device because of the size limitation. With the development of the terminal itself, various Hangul input methods that can be used for these numeric keypads have been devised and developed. In particular, in the case of mobile phones, Hangeul input devices are the most widely used as can be seen through the rapid increase in the use of text services. As can be seen from the case of a mobile phone, the importance of a simple and easy to learn Hangul input device is increasing day by day.

The Hangul input device is composed of 10 numeric key buttons, * mark key button and # mark key button provided in the communication terminal, and the Hangul input method according to how the Korean consonants and vowels are arranged on each key button. This is different.

Many Korean input methods have been devised so far, but the most used ones are the 'Cheonjiin' and 'Sejong' Hangeul input methods. Among them, the 'Cheonjiin' input method is a vowel as shown in FIG. 3 by applying the basic principles of Hangeul creation (Cheon (·; 12), Ji (ㅡ; 13), and phosphorus (ㅣ; 11) Samjae). By changing the vowel assignment keys to 1, 2, and 3 to intuitively express Hangul, it can be said that the concept of Hangul input method has been fundamentally changed. However, by assigning consonants and vowels separately to a key, the number of key presses increases when a specific consonant and vowel are input, and the final letter of the preceding letter and the first letter of the trailing letter are often assigned to the same key, which is a inconvenience. The disadvantage is the same with the Sejong Hangul input method.

As an example, in order to input the double vowel "ㅞ", there was an inconvenience of having to perform five times between keypad movements and five presses.

In addition, as the keypad is pressed more frequently, damage such as peeling off of the keypad surface occurs.

In addition, in order to distinguish between uppercase and lowercase letters in English, a separate menu keypad is displayed to display a selection window, and the displayed character input mode or uppercase / lowercase input mode is selected by using direction keys. There is a hassle when trying to type.

Therefore, even if the same sentence is input depending on how and how to arrange the vowel and consonant of the Hangul, it is possible to input the Hangul more easily while reducing the number of presses of the key button. It is an object of the present invention to provide a character and symbol input device that facilitates input of Korean characters by properly placing vowels and consonants of Korean characters on a numeric keypad arranged in 3 × 4. .

In addition, at least one keypad is provided as a conversion keypad so that conversion of Korean / numeric input and conversion of English / lower / lowercase letters, conversion of double consonants and double vowels is achieved by pressing the conversion keypad. It is yet another object to provide a character and symbol input device that facilitates this.

Character and symbol input device of the present invention for achieving the above object is a number 0, 1 to 9, consonants and vowels of the Hangul, alphabets are properly placed and stamped respectively to the corresponding imprinted letters or numbers according to the input mode In the character input device including a keypad having a plurality of keypads for outputting a corresponding signal, and a control unit for receiving an output signal of the keypad unit and outputting a control signal to externally display an image corresponding to the output signal, And at least one keypad of the plurality of keypads is a conversion keypad, and the control unit outputs a control signal such that a preset character and / or number is displayed on the display unit when an output signal of the keypad for conversion is input. It features.

In the character and symbol input device of the present invention, the control unit in the Hangul input mode, after inputting the output signal of the keypad corresponding to the vowel, if the output signal is input from the converting keypad to convert the corresponding vowel into a pair vowel Outputting a control signal to be displayed on a display unit, and after inputting an output signal of a keypad corresponding to a consonant, when an output signal is inputted from the keypad for conversion, converting the corresponding consonant into twin consonants and outputting a control signal to be displayed on the display unit It features.

In the character and symbol input device of the present invention, the control unit in the Hangul input mode, after inputting the output signal of the keypad corresponding to the consonants / vowels without the symbols, spaces and double consonants / double vowels from the conversion keypad When the output signal is input, characterized in that for outputting a control signal to convert to the numeric input mode.

In the character and symbol input device of the present invention, the control unit outputs a control signal for converting the upper and lower case input when the output signal is input from the keypad for conversion in the English input mode.

In addition, in the character and symbol input device of the present invention, the keypad unit includes 12 keypads composed of 3 × 4, and each keypad is imprinted with 1 to 9, 0, *, #, and the keypad is pressed by the user. And outputting a signal for displaying the imprinted letter or symbol.

In addition, in the character and symbol input device of the present invention, the conversion keypad is characterized in that the keypad # is imprinted.

In the character and symbol input device of the present invention, a period is further imprinted on the keypad imprinted with *, and the controller outputs a signal to display a period when an output signal is continuously input from the keypad imprinted with *. It is characterized by.

In the character and symbol input device of the present invention, a question mark is further imprinted on the keypad on which the number '0' is imprinted, and the control unit displays a question mark when the output signal is continuously input from the keypad on which the number '0' is imprinted. Characterized in that the output signal.

In the character and symbol input device of the present invention, 'a' and 'ㅋ' are further imprinted on the keypad in which the number '1' is imprinted. When the controller is in Korean input mode, the number '1' is imprinted. Outputting a control signal for displaying 'a' when an output signal is inputted from the keypad, and outputting a control signal for inputting 'ㅋ' when the output signal is continuously input from the keypad imprinted with the number '1'. It is characterized by.

In the character and symbol input device of the present invention, 'b' and 'ㄹ' are further imprinted on the keypad in which the number '2' is imprinted. When the controller is in Korean input mode, the number '2' is imprinted. Outputting a control signal to display 'b' when an output signal is inputted from the keypad, and outputting a control signal to input 'ㄹ' when the output signal is continuously input from the keypad imprinted with the number '2'. It is characterized by.

In the character and symbol input device of the present invention, 'c' and 'ㅌ' are further imprinted on the keypad in which the number '3' is imprinted. When the controller is in the Korean input mode, the number '3' is imprinted. Outputs a control signal for displaying 'c' when an output signal is input from the keypad, and outputs a control signal for inputting 'ㅌ' when the output signal is continuously input from the keypad imprinted with the number '3'. Characterized in that.

In the character and symbol input device of the present invention, 'ㅂ' and '및' are further imprinted on the keypad in which the number '4' is imprinted. When the controller is in Korean input mode, the number '4' is imprinted. Outputting a control signal to display 'ㅂ' when the output signal is input from the keypad, and outputting a control signal to input 'p' when the output signal is continuously input from the keypad imprinted with the number '4'. It is characterized by.

In the character and symbol input device of the present invention, 's' and 'ㅎ' are further imprinted on the keypad imprinted with the numeral '5', and the controller imprints the numeral '5' when the Korean input mode is input. When the output signal is input from the keypad to output the control signal to display 'ㅅ', and if the output signal is continuously input from the keypad marked with the number '5' to output a control signal to input 'ㅎ' It is characterized by.

In the character and symbol input device of the present invention, 'ㅈ' and '' 'are further imprinted on the keypad in which the number' 6 'is imprinted. When the controller is in Korean input mode, the number' 6 'is imprinted. Outputting a control signal for displaying an output signal from the keypad, and outputting a control signal for inputting the input of the | It is characterized by.

In the character and symbol input device of the present invention, the numeral '7' is further imprinted with 'ㅇ' and 'ㅁ' on the keypad, and when the controller is in the Korean input mode, the numeral '7' is imprinted. When the output signal is input from the keypad, the controller outputs a control signal for displaying 'ㅇ', and when the output signal is continuously input from the keypad imprinted with the number '7', the control signal for inputting 'ㅁ' is output. Characterized in that.

In the character and symbol input device of the present invention, 'ㅏ' and '및' are further imprinted on the keypad in which the number '8' is imprinted. When the controller is in Korean input mode, the number '8' is imprinted. Outputting a control signal to display 'ㅏ' when the output signal is input from the keypad, and outputting a control signal to input 'ㅗ' when the output signal is continuously input from the keypad imprinted with the number '8'. It is characterized by.

Further, in the character and symbol input device of the present invention, '및' and 'TT' are further imprinted on the keypad imprinted with the number '9', and when the controller is in Korean input mode, the number '9' is imprinted. Outputting a control signal to display 'ㅓ' when the output signal is inputted from the keypad, and outputting a control signal to input 'TT' when the output signal is continuously input from the keypad imprinted with the number '9'. It is characterized by.

In the character and symbol input device of the present invention, 'ㅣ' is further imprinted on the keypad on which the number '0' is imprinted. When the controller is in the Korean input mode, the number '0' is output from the imprinted keypad. When a signal is input, it is characterized by outputting a control signal to display 'ㅣ'.

In the character and symbol input device of the present invention, '-' is further imprinted on the keypad imprinted with the symbol '*', and the control unit outputs from the keypad imprinted with the number '0' in the Korean input mode. When the signal is input, it characterized in that for outputting a control signal to display 'ㅡ'.

In the character and symbol input device of the present invention, the control unit outputs a control signal for displaying '표시' when the output signal is input three times in succession from the keypad in which the numeral '8' is imprinted in the Korean input mode. Characterized in that.

In the character and symbol input device of the present invention, the control unit outputs a control signal to display 'ㅝ' when the output signal is input three times consecutively from the keypad in which the number '9' is imprinted in the Korean input mode. Characterized in that.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the character and symbol input device according to the present invention.

1 is a block diagram of a character and symbol input apparatus according to an embodiment of the present invention, Figure 2 is a view showing an example of a keypad unit according to an embodiment of the present invention.

The character and symbol input device according to the present embodiment includes a control unit 200 for receiving a keypad 100, an output signal of the keypad 100, and outputting a control signal for displaying a corresponding character and symbol; And a display unit 300 for receiving an output signal of the controller 200 and displaying the output signal to the outside.

As shown in FIG. 2, the keypad 100 includes twelve keypads 111 to 122 arranged in 3 × 4 metrics. In the present embodiment, the keypad of the mobile communication terminal as shown in FIG. 2 will be described as an example, but is not limited thereto.

The keypads 111 to 122 are engraved with numbers 1 to 9, 0, and * and #, respectively, and consonants and vowels for inputting Korean characters and frequently used symbol periods and question marks for the Korean input mode. And 0 are further imprinted on the imprinted keypad. In addition, a 'conversion' is further engraved on the keypad 122 engraved with #. In this embodiment, description of arrangement of alphabets is omitted. However, when the keypad 122 in which the conversion is imprinted is pressed in the English input mode, case conversion is performed. A detailed description will be given below.

Hangul consonants 'ㄱ' and 'ㅋ' are imprinted on the first keypad 111 in which the number '1' is imprinted, and Hangul consonants 'b' are imprinted on the second keypad 112 in which the number '2' is imprinted. , 'ㄹ' is imprinted, and the third keypad 113 with the number '3' is imprinted with the Korean consonants 'c' and 'ㅌ', and the fourth keypad with the number '4' imprinted (114). ), The Korean consonants 'ㅂ' and 'ㄷ' are engraved, and the fifth keypad 115 with the number '5' is engraved with the Korean consonants 'ㅅ' and 'ㅎ', and the number '6' The sixth keypad 116 is engraved with the Korean consonants 'ㅈ' and 'ㅊ', and the seventh keypad 117 with the number '7' is engraved with the Korean consonants 'ㅇ' and 'ㅁ'. A vowel 'ㅏ' and a 'ㅗ' are engraved on the eighth keypad 118 where the number '8' is engraved, and a vowel of Korean is engraved on the ninth keypad 119 where the number '9' is engraved. 'ㅓ', 'TT' is engraved, the symbol '*' is engraved on the tenth keypad 120 The Korean vowel 'ㅡ' and the period '.' Are engraved, and the vowel 'l' and the symbol '?' Are engraved on the eleventh keypad 121 in which the number '0' is engraved. The word 'conversion' is imprinted on the imprinted twelfth keypad 122.

Each keypad 111-122 as described above outputs a signal having unique ID information whenever the keypad 111-122 is pressed, and the controller 200 receives a signal including the ID information. The control signal to display the number or symbol imprinted on the keypad (111 ~ 122) or the alphabet / vowel or alphabet of the Hangul. Since the technical idea is a method of inputting letters, symbols, and numbers using a keypad that is already widely known, a detailed description thereof will be omitted.

As described above, the first keypad 111 to the twelfth keypad 122 are engraved with a number, a consonant / vowel of Korean, a sign for displaying a symbol and a keypad 122 for conversion, and a 'conversion'. The # keypad 122 in which 'convert' is further imprinted converts to a consonant or a pair of vowels in the case of the Korean input mode, and converts a case in the case of the English input mode. When the keypad 122 is pressed after the space, the keypad 122 is converted to the numeric input mode.

Looking at the letter, symbol, number input method using the keypad unit 100 as described above in detail.

First, in the Hangul input mode, consonants or vowels imprinted on each keypad 111 to 122 may be displayed on the display unit 300 by pressing the keypads 111 to 122 one, two, or three times in succession, respectively. For example, when the first keypad 111 is pressed once, 'a' is displayed on the display unit 300, and when the second key is pressed twice, 'ㅋ' is displayed on the display unit 300. This method is equally applied to the first keypad 111 to the eleventh keypad 121. However, when the eighth keypad 118 and the ninth keypad 119 are pressed three times in succession, 'ㅘ' and 'ㅝ' are displayed on the display unit 300.

Here, in the case of a consonant capable of consonant consonants, after pressing the keypad with the consonant imprinted, the twelfth keypad 122, that is, the 'converted' imprinted with the imprinted keypad 122 is converted to the consonant consonant. . For example, when the twelfth keypad 122 is pressed after the fourth keypad 114 is pressed, 'ㅃ' is displayed on the display unit 300.

In addition, in the case of consonants capable of pair vowels, after pressing the keypad imprinted with the corresponding vowel, the twelfth keypad 122 is pressed to convert to the vowels. For example, when the twelfth keypad 122 is pressed after the ninth keypad 119 is pressed, 'ㅑ' is displayed on the display unit 300.

In addition, frequently used symbols, periods, and question marks are displayed on the display unit 300 by pressing the tenth keypad 120 and the eleventh keypad 121 two times in succession, respectively.

In addition, when a number is to be input during the Korean input in the Korean input mode, the number can be easily input using the twelfth keypad 122. The consonant or the vowels capable of the double consonant and the double vowel can be entered. When the twelfth keypad 122 is pressed afterwards, the twelfth keypad 122 is converted after inputting of a keypad signal indicating a space, that is, a directional keypad. When a signal is input from the controller 200, the control unit 200 determines the number input mode and outputs a control signal for displaying the imprinted number on the keypad to be input later. In addition, when a signal is input from the twelfth keypad 122 after inputting a keypad signal for displaying a symbol, in addition to the pair consonant or double vowel conversion time in addition to the keypad signal indicating the space in the Korean input mode, the controller 200 ) Is determined by the numeric input mode.

In the English input mode, the twelfth keypad 122 outputs a signal for switching between upper and lower case letters. That is, when the output signal is input from the twelfth keypad 122 in the English input mode, the controller 200 determines that the signal is a case for switching between upper and lower case letters, and then switches the case of alphabets imprinted on the keypad pressed. Output to the display unit 200.

The keypads except for the eighth keypad 118, the ninth keypad 119, and the twelfth keypad 122 each have a toggle function. It is displayed repeatedly when pressed.

Looking at the input example of the character and symbol input device of the present embodiment described above and the conventional character input device of the cheonjiin method as follows. For convenience of description, only numbers of keypads corresponding to the consonants or vowels of Korean shown in FIGS. 2 and 3 will be described.

As a first example, the keypad input of the present embodiment for displaying " bottoming " may be entered as' 3 # 8 0; 3 # 8 2 2; This is implemented by pressing 5 8 8 'sequentially, which is achieved by pressing a total of 12 times. Conventional methods are known in the keypad shown in Figure 3 '6 6 6 1 2 0; 6 6 6 1 2 5 5; It is implemented by pressing 7 2 3 'sequentially, which is inconvenient to press a total of 16 times.

As a second example, the keypad input of the present embodiment for displaying the "discrimination force" is' 4 9 # 2; 4 9 # 2 2; 2 2 9 # 1 ', achieved by pressing 14 times in total. Conventional methods are known as' 7 2 2 1 5; 7 2 2 1 5 5; It is implemented by pressing 5 5 2 2 1 4 'sequentially, and it is necessary to press a total of 17 times, which can also be seen that the Hangul input method of the present embodiment is achieved by fewer times of pressing.

As a third example, the keypad input of this embodiment for displaying "1234 is it correct?" # 7 7 8 6; 5 * 4; 2 0; Implemented as 1 # 8 0 0 ', it is achieved by pressing 20 times in total. That is, the conventional method requires a long press of a corresponding symbol or a numeric mode conversion for inputting a number when entering a number, and the inconvenience of having to switch to a symbol input mode when entering a symbol. There is no need for a separate input mode selection for conversion.

According to the present invention, it is possible to input the same word or syllable Korean characters with fewer presses than the conventional Korean input method, so that the user can easily input Korean characters such as a short message, and the number of presses is reduced. Therefore, the durability of the keypad itself is an advantage.

In addition, the frequently used symbols can be entered by pressing the keypad, there is an advantage that the inconvenience of having to input through a separate menu to input the conventional symbols has the advantage.

In addition, if you want to enter a number in the Hangul input mode, the numeric input mode is implemented by pressing the conversion keypad, so when writing a sentence in parallel with Hangul and numbers can be easily proceeded to provide a convenient character input interface to the user There is an advantage.

An embodiment of the present invention described above and illustrated in the drawings should not be construed as limiting the technical spirit of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention, as will be apparent to those skilled in the art.

Claims (21)

A keypad unit having a plurality of keypads for outputting a signal corresponding to an imprinted letter or number according to an input mode, in which numbers from 0, 1 to 9, Korean consonants and vowels, and alphabets are properly arranged, and outputting the keypad unit A character input device comprising a control unit for receiving a signal and outputting a control signal to display an image corresponding to the output signal to the outside, At least one keypad of the plurality of keypads is a conversion keypad, And the control unit outputs a control signal so that a predetermined character and / or number is displayed on the display unit when an output signal of the keypad for conversion of the keypad unit is input. The method of claim 1, If the control unit is the Hangul input mode, After inputting the output signal of the keypad corresponding to the vowel, when the output signal is input from the converting keypad, the control vowel is converted into a pair of vowels and outputs a control signal to be displayed on the display unit. Characteristic and symbol input device for outputting a control signal to be displayed on the display by converting the corresponding consonants to twin consonants after inputting the output signal of the keypad corresponding to the consonants. The method of claim 2, If the control unit is the Hangul input mode, After the input of the output signal of the keypad corresponding to the vowel / consonant, which is not a symbol, space and double consonants / double vowel Character and symbol input device. The method of claim 1, And the controller outputs a control signal for converting upper and lower case input when an output signal is input from the conversion keypad in the English input mode. The method according to any one of claims 2 to 4, The keypad unit includes 12 keypads composed of 3 × 4, 1 to 9, 0, *, # are imprinted on each keypad, and when the keypad is pressed by a user, a character and symbol input device for outputting a signal to display a corresponding imprinted character or symbol. The method of claim 5, The converting keypad is a keypad engraved # Characters and symbols input device, characterized in that the marking for displaying the keypad for conversion on the # is imprinted keypad. The method of claim 6, In the keypad marked with *, a period is further imprinted, The control unit outputs a signal for displaying a period when a continuous output signal is input from the keypad marked with *. The method of claim 6, On the keypad imprinted with the number '0', a question mark is further imprinted, The control unit is a character and symbol input device, characterized in that for outputting a signal to display a question mark when the output signal is continuously input from the keypad imprinted with the number '0'. The method according to claim 7 or 8, On the keypad imprinted with the number '1', 'ㄱ' and 'ㅋ' are further imprinted, If the control unit is the Hangul input mode, When the output signal is inputted from the keypad imprinted with the number '1', the control signal outputs a control signal to display 'B', and if the output signal is continuously input from the keypad imprinted with the number '1', 'ㅋ' is inputted. Character and symbol input device, characterized in that for outputting a control signal to input. The method according to claim 7 or 8, 'N' and 'ㄹ' are further imprinted on the keypad imprinted with the number '2', If the control unit is the Hangul input mode, When the output signal is input from the keypad imprinted with the number '2', a control signal is output to display 'n', and if the output signal is continuously input from the keypad with the number '2' inputted, 'ㄹ' is inputted. Character and symbol input device, characterized in that for outputting a control signal. The method according to claim 7 or 8, In the keypad imprinted with the number '3', 'c' and 'ㅌ' are further imprinted, If the control unit is the Hangul input mode, When the output signal is input from the keypad imprinted with the number '3', a control signal is output to display 'c', and if the output signal is continuously input from the keypad imprinted with the number '3', 'ㅌ' is inputted. Character and symbol input device, characterized in that for outputting a control signal. The method according to claim 7 or 8, 'ㅂ' and '이' are further imprinted on the keypad imprinted with the number '4', If the control unit is the Hangul input mode, When the output signal is input from the keypad imprinted with the number '4', a control signal is output to display 'ㅂ', and if the output signal is continuously input from the keypad with the number '4' inputted, 'p' is inputted. Character and symbol input device, characterized in that for outputting a control signal. The method according to claim 7 or 8, On the keypad imprinted with the number '5', 'ㅅ' and 'ㅎ' are further imprinted, If the control unit is the Hangul input mode, When the output signal is input from the keypad imprinted with the number '5', the control signal outputs a control signal for displaying 'ㅅ', and if the output signal is continuously input from the keypad imprinted with the number '5', 'ㅎ' is inputted. Character and symbol input device, characterized in that for outputting a control signal. The method according to claim 7 or 8, The keypad engraved with the numeral '6' is further engraved with 'ㅈ' and 'ㅊ', If the control unit is the Hangul input mode, If the output signal is inputted from the keypad imprinted with the numeral '6', the control signal is output to display 'ㅈ'; if the output signal is continuously input from the keypad imprinted with the numeral '6', 'Z' is input. Character and symbol input device, characterized in that for outputting a control signal to input. The method according to claim 7 or 8, 'ㅇ' and 'ㅁ' are further imprinted on the keypad imprinted with the number '7', If the control unit is the Hangul input mode, When the output signal is input from the keypad imprinted with the number '7', a control signal is output to display 'O'; if the output signal is continuously input from the keypad with the number '7', 'ㅁ' is inputted. Character and symbol input device, characterized in that for outputting a control signal. The method according to claim 7 or 8, 'ㅏ' and 'ㅗ' are further imprinted on the keypad imprinted with the number '8', If the control unit is the Hangul input mode, When the output signal is input from the keypad imprinted with the number '8', a control signal is output to display 'ㅏ'. If the output signal is continuously input from the keypad with the number '8', 'ㅗ' is inputted. Character and symbol input device, characterized in that for outputting a control signal. The method according to claim 7 or 8, 'ㅓ' and 'TT' are further imprinted on the keypad imprinted with the number '9', If the control unit is the Hangul input mode, When the output signal is input from the keypad imprinted with the number '9', a control signal is output to display 'ㅓ', and if the output signal is continuously input from the keypad with the number '9' inputted, 'TT' is inputted. Character and symbol input device, characterized in that for outputting a control signal. The method according to claim 7 or 8, 'ㅣ' is further imprinted on the keypad imprinted with the number '0', If the control unit is the Hangul input mode, Character and symbol input device, characterized in that for outputting a control signal to display a 'ㅣ' when the output signal is input from the keypad imprinted with the number '0'. The method according to claim 7 or 8, '-' Is further imprinted on the keypad imprinted with the symbol '*', If the control unit is the Hangul input mode, Character and symbol input device, characterized in that for outputting a control signal to display a '-' when the output signal is input from the keypad imprinted with the number '0'. The method of claim 16, If the control unit is the Hangul input mode, Character and symbol input device characterized in that for outputting a control signal to display 'ㅘ' when the output signal is input three times in succession from the keypad imprinted with the number '8'. The method of claim 17, If the control unit is the Hangul input mode, Character and symbol input device, characterized in that for outputting a control signal to display 'ㅝ' when the output signal is input three times consecutively from the keypad imprinted with the number '9'.

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