KR20110088311A

KR20110088311A - Character input device of electronic equipment and method for inputting characters using the same

Info

Publication number: KR20110088311A
Application number: KR1020100008168A
Authority: KR
Inventors: 이동화; 이동훈
Original assignee: 이동화
Priority date: 2010-01-28
Filing date: 2010-01-28
Publication date: 2011-08-03

Abstract

PURPOSE: A character input device of an electronic equipment and a method for inputting characters using the same are provided to optimize the number of input keys and a finger movement distance. CONSTITUTION: An input keypad comprises two or more key buttons. A convert key is arranged in a central part of a plurality of key buttons. The convert key changes a first character input state into a second character input state. The character input key is arranged adjacent to the convert key. A basic consonant key or a basic vowel key of the character input keys are located in adjacent key buttons around the convert key. A special character input key is placed on an adjacent character input key.

Description

CHARACTER INPUT DEVICE OF ELECTRONIC EQUIPMENT AND METHOD FOR INPUTTING CHARACTERS USING THE SAME}

The present invention relates to a character input method and an electronic device using the same. More specifically, the input keypad having two or more key buttons; A conversion key disposed at the center of the plurality of key buttons of the input keypad and converting the first character into a second predetermined character having a close correlation with the input first character or converting the first character input state into a second character input state; A character input key disposed at a minimum key button distance from the conversion key, wherein a set of basic consonant or basic vowel characters are assigned to each of the key buttons at least immediately adjacent to the conversion key; A special character input key disposed in at least one key button adjacent to the character input key and to which at least one special character is assigned; And a controller configured to generate syllables that combine consonants and vowels that can be combined according to a combination of a character input key and a conversion key, and generate a special character that can be combined according to a combination of a special character input key and a conversion key. An input device and a character input method using the same.

As the use of electronic devices has become popular, electronic devices have various additional functions in addition to the original functions. Although these additional functions are very diverse, one of them is a text message service function for inputting / receiving sentences, a phone book function for inputting, storing and retrieving a plurality of phone numbers for each user, a schedule and to-do management function, and a word search. It uses all the character input functions to receive and output characters from the user, and to store and transmit them as needed.

On the other hand, in recent years, since electronic devices are made compact for easy portability, a key input device that receives characters, that is, an input keypad is also made compact, and the number of key buttons is limited because an input keypad is assigned to a limited area. . In addition, when the number of key buttons is large in the input keypad of the limited area, there is an inconvenience in operation such as a wrong input due to space limitation. Typically, the input keypad of the electronic device includes a function button for selecting a function, a numeric button for inputting a number, and a character button for inputting characters such as Korean, English, or special characters. Numeric buttons and letter buttons are typically configured to enter a number and a number of characters in one key button.

Here, unlike English, which has a one-dimensional arrangement, Hangul forms two syllables by forming two syllables by forming a consonant, a neutral, and a two-dimensional array. Therefore, the input method becomes more complicated than English. Therefore, it has been required to develop a Hangul input method to simplify the process of inputting Hangul in an electronic device, and various Hangul input methods such as Cheonjiin and EZ Hangul have been developed and widely used.

On the other hand, a typical mobile communication terminal using Cheonjiin has a total of 12 key buttons on the input keypad and receives numbers or letters by arranging numbers and letters (English, Korean, special characters) on 12 input keypads properly. .

In the case of Cheonjiin, three Cheonjiin vowels ('ㅣ, ·, ㅡ') are assigned to the three key buttons at the top, and 6 consonants of two rows and consonants ('ㄱㅋ) at the center one key button at the bottom. , B, b, b, b, b, b, b, b, b, b, b, b, b, b, b, b, b, b, b, b, b, b, b). Press to select consonants and vowels for input.

In addition, in the case of EZ Hangul, 6 Hangul terminal sounds ('ㄱ, ㄴ, ㄹ, ㅁ, ㅅ, ㅇ') are assigned to the consonant buttons, and 6 Hangul short vowels are used to input Korean short vowels. It is assigned to three vowel buttons classified as ㅏ, ㅓ, ㅗ,, ㅣ, ㅡ '). # ') In consecutive combinations with consonant and vowel buttons.

However, the character input method of Cheonjiin and Ezi (EZ) Hangul is not only a large number of consonants and vowels that are not entered at a time, but also requires that you press the same key button twice or three times or the key buttons are far away from each other. When there are many consonants and vowels that are not displayed on the keypad, and functions and positions are different for each key button for each device, there is a problem that the learning time for Korean input is considerably long when there are many frequent device changes. In addition, since the catch button ('*') and the double consonant button ('#') must be used frequently, the moving distance of the fingering is long.

In addition, in recent years, a large number of special characters have been used when inputting a character. However, in order to use a special character in most character input methods, an additional number of key inputs increases because a button other than the input keypad is pressed. In addition, since buttons other than the input keypad for using a special character are located far apart from the center of the input keypad, the moving distance of the fingering is long when the special character is input.

On the other hand, the recent input of alphabets or Chinese characters as well as Hangul is increasing, but the input of alphabets or Chinese characters requires a greater number of key inputs than Korean characters due to the arrangement on the input keypad for conventional alphabets or Chinese characters. In addition, due to the increased number of key inputs, there is a problem that the fingering distance is long when the foreign language is input because of the arrangement on the input keypad for the conventional alphabet or Chinese character which is not optimized.

In order to solve this problem, the present invention, in inputting a character into the electronic device, in order to make it easier to recognize the character configuration of the input keypad, to improve the character input speed, in the center of the character input key assigned a basic phoneme Place a conversion key that provides scalability for basic phonemes, increase the input key margin by utilizing the conversion key and key redundancy, and assign some frequently used special character input keys to the input keypad to determine the number of keystrokes and fingerings. An object of the present invention is to provide a character input device of an electronic device and a character input method using the same, which optimize a moving distance.

The present invention provides an input keypad having two or more key buttons; A conversion key disposed at the center of the plurality of key buttons of the input keypad and converting the first character into a second predetermined character having a close correlation with the input first character or converting the first character input state into a second character input state; A character input key disposed at a minimum key button distance from the conversion key, wherein a set of basic consonants or basic vowel phonemes are assigned to each of the key buttons at least immediately adjacent to the conversion key; A special character input key disposed in at least one key button adjacent to the character input key and to which at least one special character is assigned; And a control unit for generating syllables in which consonant and vowel phoneme are combined according to a combination of a character input key and a conversion key, and generating a special character that can be combined according to a combination of a special character input key and a conversion key. Provide a character input device.

The electronic device according to the present invention can be applied to a mobile communication terminal, a personal digital assistant (PDA), a plasma display panel (PDP), a remote control, an e-book, a Pocket PC, a touch screen, and a vehicle navigation device. In addition, the special character input key of the character input device of the electronic device according to the present invention is preferably resettable up to four special characters according to user definition.

In addition, the present invention provides an input keypad having nine or more key buttons; A conversion key disposed at the center of the plurality of key buttons of the input keypad and converting the first character into a second predetermined character having a close correlation with the input first character or converting the first character input state into a second character input state; A set of phonetic consonant or morphologically correlated basic consonants or basic vowel phonemes disposed at a minimum key button distance from the transform key is assigned to each of the key buttons immediately adjacent to the transform key at least Character input keys; A special character input key disposed in at least one key button adjacent to the character input key and to which at least one special character is assigned; And a control unit for generating syllables in which consonant and vowel phonemes that can be combined according to a combination of a character input key and a conversion key, and generating a special character that can be combined according to a combination of a special character input key and a conversion key. Character input device of an electronic device, characterized in that for optimizing the number of key input and the moving distance of the fingering.

In addition, the present invention provides an input keypad having nine or more key buttons; A conversion key disposed at the center of the plurality of key buttons of the input keypad and converting the first character into a second predetermined character having a close correlation with the input first character or converting the first character input state into a second character input state; A set of phonetic consonant or morphologically correlated basic consonants or basic vowel phonemes, which are disposed at a minimum key button distance from the transform key, is assigned to each of the key buttons at least immediately adjacent to the transform key. Character input key; A special character input key disposed in at least one key button adjacent to the character input key and to which at least one special character is assigned; And a control unit for generating syllables combining consonant and vowel phoneme which can be combined according to a combination of a character input key and a conversion key, and generating a special character that can be combined according to a combination of a special character input key and a conversion key. When the first character input key and the conversion key of the plurality of character input keys are sequentially input, outputting a modified character including parallel phonemes or synthesized phonemes of the first character input key pre-assigned to the first character input key; When the second character input key is sequentially input from the first character input key and the plurality of character input keys, a combination character of the sum of the first basic character assigned to the first character input key and the second basic character assigned to the second character input key Outputting; And sequentially outputting basic characters assigned to the first character input key when the first character input key is continuously input.

As described above, in one embodiment of the present invention, in order to improve the ease of use and the input speed of the character input of the electronic device, the character input key is arranged around the conversion key to provide an input key margin utilizing the conversion key and key duplication. In addition, by placing a special character input key including some frequently used special characters adjacent to the character input key, it is possible to optimize the number of key inputs and the moving distance of the fingering when the character is input. In addition, the user may further improve convenience of use by resetting special characters on an input keypad that are frequently used.

Further, in another embodiment of the present invention, by using a conversion key disposed at the center of the input keypad when inputting alphabets, a key input at the time of English input is promptly inputted by quickly inputting a phonetically correlated character or a formally correlated character. The number can be shortened. In addition, by using the conversion key, the menu structure of the input keypad can be expressed simply.

In addition, the present invention is a Hangul keyboard when inputting characters in an electronic device having 12 numeric keys is a simple arrangement that can be memorized by anyone who knows Hangul once, so there is no Hangul keyboard like a normal phone or an electronic calculator. It is easy to input Korean. In addition, using the automatic conversion of consonant and vowel input modes, the key pressed for entering one syllable is 3.15 times on average. Therefore, it is easy to input text information in general electronic devices as well as in case of using a Korean input device such as a mobile phone.

1 is a layout view of one character of an input keypad of a character input device of an electronic device according to an embodiment of the present invention.
FIG. 2 is a block diagram schematically illustrating a character input device capable of inputting characters into an electronic device using a conversion key according to an embodiment of the present invention.
Figure 3 is another character arrangement of the input keypad of the character input device of the electronic device according to an embodiment of the present invention.
Figure 4 is another character arrangement of the input keypad of the character input device of the electronic device according to an embodiment of the present invention.
FIG. 5 is a layout view of one character of an input keypad of a character input device of a touch pad type electronic device according to one embodiment of the present invention; FIG.
FIG. 6 is a layout view of another character of an input keypad of a character input device of a touch pad type electronic device according to one embodiment of the present invention; FIG.
7 is an exemplary flowchart illustrating a character input method in an electronic device according to an embodiment of the present invention.
8 is an exemplary flowchart illustrating a text input method in an electronic device according to another embodiment of the present invention.
Figure 9 is a character layout of the input keypad of the character input device of the electronic device according to another embodiment of the present invention.

Among the terms used in the following description, the term 'array' refers to a state in which characters are printed on the key button of the input key pattern of the electronic device to be visible, and the term 'array' refers to the limitation of the size of the input key pattern. By assigning a character not printed on the key button to the key button of a basic character having a close voice or morphological correlation.

Hereinafter, with reference to the drawings of the character input device of the electronic device and the character input method using the same according to the present invention will be described in detail.

1 is a layout view of one character of an input keypad of a character input apparatus of an electronic device according to an embodiment of the present invention.

In this embodiment, the input keypad includes twelve key buttons. In this case, a character ('(') having a function of converting into a second predetermined character having a close correlation with the inputted first character is disposed at the center of the input keypad, that is, the numeric key 5.

In addition, a basic character for inputting a character is arranged on a numeric key (except for 0 to 9 and 5) except for the numeric key where '(' is arranged among the input keypads. The basic character for inputting a character according to the present embodiment is In the arranged numeric keys, one set of basic consonants or basic vowel phonemes is placed around the numeric keys (except 0-9, 5) adjacent to the numeric keys 5, and placed at the minimum key button distance from the numeric keys 5. For example, the numeric keys 0 to 9 except for the numeric keys 5 of the input keypad according to the present embodiment include ('1'; 'ㄱ'; 'S', 'B'), ('2'; 'ㅏ' ; 'A', 'E'), ('3'; 'ㄴ', 'T', 'F'), ('4'; 'ㅗ'; 'I', 'O'), ('6' ; 'ㅣ'; 'U', 'Y'), ('7'; 'ㄷ'; 'G', 'H'), ('8'; 'ㅁ'; 'L', 'N'), ('9'; 'ㅅ'; 'X', 'Z') and ('0'; 'ㅇ'; 'Aa'), where each numeric key is a number And basic English characters are arranged in turn, while 'Aa' disposed on the numeric key 0 may have a function of converting upper and lower case letters in English.

In addition, according to the present embodiment, a special character may be disposed on the '*' and '#' key buttons adjacent to the numeric keys of the input keypad. For example, the '*' and '#' key buttons have ('*', '.', '^', ':') And ('#', '?', '(', '/') Meanwhile, according to the present embodiment, the special character disposed in each of the '*' and '#' key buttons may be resettable up to eight special characters according to user definition.

FIG. 2 is a block diagram schematically illustrating a character input device capable of inputting characters into an electronic device using a conversion key according to an embodiment of the present invention.

A character input device capable of inputting a character to an electronic device using a conversion key according to an embodiment of the present invention includes an input unit 210, an output unit 220, a memory unit 230, a processing unit 240, and a control unit ( 250).

The input unit 210 includes an input keypad composed of a plurality of key buttons, detects a key input using the input keypad, and converts the detected signal into a key input signal, which is an electrical signal, and transmits it to the controller 250. . Input unit 210 according to an embodiment of the present invention is located at the center of the input keypad, the character ('(') having a function of converting the second character with a close correlation with the input first character is Each of the arranged transform keys and a set of key buttons located at a minimum key button distance from the transform key and adjacent to one of a set of consonantly or formally correlated basic consonants or basic vowel phonemes immediately adjacent to the transform key. A total of nine basic characters ('ㄱ', 'ㅏ', 'ㄴ', 'ㅗ', 'ㅣ', 'ㄷ', 'ㅁ', 'ㅅ' and 'ㅇ') assigned to the An input keypad comprising an input key and at least one key button adjacent to the character input key, the special keypad including a special character input key to which at least one special character is assigned, and a key input detected using the input keypad Converts the signal to the controller 250 To pass.

The output unit 220 outputs various information such as letters, numbers, voices, and images under the control of the controller 250. The memory unit 230 is a storage means for storing a plurality of software required to operate the electronic device. When executed under the control of the controller 250, the memory unit 230 according to an embodiment of the present disclosure analyzes a key input signal received from the input unit 210 according to a preset algorithm, recognizes a specified character, and outputs the output unit ( 220 is used to store the character input program, which is the output software.

The processor 240 is a communication means for providing a communication interface for performing a wireless communication between the electronic device and a text input device or a communication network for providing electronic services.

The controller 250 is a control means for controlling the overall operation of the electronic device by operating according to a key input signal transmitted from the input unit 510. The control unit 250 according to an embodiment of the present invention, if the electronic device is switched to the character input mode according to the user's key operation, and the key input signal is transmitted from the input unit 210, the character input program of the memory unit 230 And outputs the input characters by controlling the output unit 220 according to a predetermined algorithm of the character input program.

Here, the character input program is a software for selecting and outputting a designated character according to a key input signal as described above, unlike a conventional character input method in which characters are input by combining successive character input events. Optimize the number of key inputs and the moving distance of the fingering by placing the character input keys at the minimum key button distance.

At this time, in the case of Hangul input, if the basic letters ('ㄱ', 'ㄷ', 'ㅂ', 'ㅅ' and 'ㅈ') and the conversion key (()) that are consonants are sequentially inputted , 'ㄸ', 'ㅃ', 'ㅆ' and 'ㅉ'), and they are outputted as well as basic characters ('ㅏ', 'ㅓ', 'ㅗ' and 'TT') and conversion keys ( If () is input sequentially, it is recognized and output as synthesized characters ('ㅑ', 'ㅕ', 'ㅛ' and 'ㅠ').

And, the first basic characters ('ㄹ', 'ㅏ', 'ㄴ', 'ㅗ', 'ㅓ' and 'ㅂ') and the second basic characters ('ㄱ', 'ㅣ', If 'ㅎ', 'ㅣ', 'ㅣ' and 'ㅅ' are entered sequentially, they are recognized as combination characters ('ㄺ', 'ㅐ', 'ㄶ', 'ㅚ', 'ㅔ' and 'ㅄ') Is output. In addition, if the basic characters ('ㄱ', 'ㅗ', 'ㄴ' and 'ㅏ') are entered consecutively, the basic characters ('ㅋ', 'ㅜ', 'ㄹ' and 'ㅓ Print ') in order. An embodiment thereof will be described in detail with reference to FIG. 3.

On the other hand, in the case of English input, if the basic letters ('S', 'T', 'U', 'G', 'L' and 'X') and the conversion key (()) are sequentially input, the phonetic or morphological correlation The output is recognized as closely related characters ('C', 'D', 'W', 'Q', 'R' and 'J'), thereby reducing the number of keystrokes and user convenience for foreign language input. An embodiment thereof will be described in detail with reference to Fig. 4. In addition, the same concept may be applied to foreign languages other than English.

3 is another character arrangement diagram of an input keypad of a character input device of an electronic device according to an embodiment of the present invention.

3 relates to a character layout when the input keypad according to an embodiment of the present invention is Korean. At this time, the numeric keys of the input keypad are all assigned to the characters having close phonetic or morphological correlations in addition to the basic characters arranged on the keypad as shown in FIG. In addition, after the basic consonants arranged on the keypad as shown in FIG. 1 are input, the double consonant phoneme which can be converted by pressing the numeric keys 5 in parallel, or the numeric keys 5 after the basic vowels are input A assignable compound vowel phoneme, which can be converted by pressing, is assigned to each key button.

That is, the numeric keys in which one set of the basic consonants or the basic vowel phonemes as shown in FIG. 1 are arranged are intricately related to the phonetic or morphological correlations that are not printed on the key button due to the limitation of the input key pattern size. Here, in the numeric key shown in FIG. 3, letters with close phonological or morphological correlations are assigned in bold letters in the first column, and double consonants or double consonants are assigned in pale letters in the second column according to the present invention. For example, numeric keys 0 to 9 except for numeric keys 5 of the input keypad according to the present embodiment include (1: 'ㄱ', 'ㅋ'; 'ㄲ'), (2: 'ㅏ', 'ㅓ' ';' ㅑ ',' ㅕ '), (3:' ㄴ ',' ㄹ '), (4:' ㅗ ',' ㅜ ';' ㅛ ',' ㅠ '), (6:' ㅣ ', 'ㅡ', 'ㅢ'), (7: 'ㄷ', 'ㅌ'; 'ㄸ'), (8: 'ㅁ', 'ㅂ', 'ㅍ'; 'ㅃ'), (9: 'ㅅ ',' ㅈ ',' ㅊ ';' ㅆ ',' ㅉ ') and (0:' ㅇ ',' ㅎ ') are assigned with default characters. Therefore, according to the present invention, the phonemes of all the consonants and vowels of the Hangul are assigned adjacent to the numeric key 5, so that the user's convenience can be improved by optimizing the number of key inputs and the moving distance of the fingering when the characters are input.

Meanwhile, according to the present invention, all phonemes of Korean consonants and vowels are assigned to numeric keys 0 to 9, so that special characters frequently used for '*' and '#' key buttons adjacent to the numeric keys are shown in bold letters in the first column. Special characters extended according to the function of the numeric key 5 according to the present invention may be further allocated in two rows of thin letters. For example, the '*' and '#' key buttons include ('*', '.', '^', ':'; '※', ',', '@', ';') and (' # ','? ',' (',' / ';' $ ','! ',') ',' | ') Are assigned. In addition, according to the present embodiment, the special characters disposed in each of the '*' and '#' key buttons may be reset to up to eight special characters according to a user definition. Therefore, according to the present invention, it is possible to further improve the convenience of the user by more conveniently using special characters frequently used by the user.

4 is a diagram illustrating another character arrangement of the input keypad among the character input devices of the electronic device according to one embodiment of the present invention.

FIG. 4 relates to a character arrangement diagram when an input keypad according to an embodiment of the present invention is English. At this time, the numeric keys of the input keypad are all assigned to the characters having close phonetic or morphological correlations in addition to the basic characters arranged on the keypad as shown in FIG. According to the present invention, in order to assign all the English alphabet letters to a small number of key buttons, the letters or the letters with close morphological correlations are implemented using the numeric keys 5. As a result, there are assigned to the key button characters that can be transformably expanded by pressing the numeric keys 5 after the basic characters arranged on the keypad as shown in FIG. 1 are input.

That is, the numeric keys in which one set of the basic consonants or the basic vowel phonemes as shown in FIG. 1 are arranged are intricately related to the phonetic or morphological correlations that are not printed on the key button due to the limitation of the input key pattern size. Here, the numeric keys shown in FIG. 4 are assigned with bold letters in a first column in the form of phonetic or morphological correlations, and according to the present invention, by sequentially pressing a letter and a numeric key 5 arranged on any numeric key according to the present invention. Characters that can be converted are assigned in the second column of light letters. For example, the numeric keys 1 to 9 except for the numeric key 5 of the input keypad according to the present embodiment include (1: 'S', 'B'; 'C', 'V'), (2: 'A ',' E '), (3:' T ',' F ';' D ',' P '), (4:' I ',' O '), (6:' U ',' Y '; 'W'), (7: 'G', 'H'; 'Q', 'K'), (8: 'L', 'N'; 'R', 'M') and (9: 'X' ',' Z ';' J ') is assigned with the base character. On the other hand, according to the present embodiment, by allocating all the letters of the English alphabet to the numeric keys 1 to 9, it is possible to arrange a function key that enables upper and lower case conversion to the numeric key 0. At this time, 'Aa' indicating such a function key is displayed on the numeric key 0 as shown in FIG.

In addition, similarly to the case where the input keypad of FIG. 3 is Korean, in FIG. 4, all English basic characters are assigned to numeric keys 0 to 9 so that they are frequently used for '*' and '#' key buttons adjacent to the numeric keys. Special characters are assigned. Therefore, according to the present invention, it is possible to further improve the convenience of the user by more conveniently using special characters frequently used by the user.

FIG. 5 is a layout view of one character of an input keypad of the character input apparatus of the touch pad type electronic device according to one embodiment of the present invention. In particular, FIG. 5 relates to a character arrangement diagram when the input keypad is Korean.

According to this embodiment, the input keypad shown in FIG. 5 includes fifteen key buttons. In this case, a character ('(') having a function of converting into a second predetermined character having a close correlation with the inputted first character is disposed in the center of the input keypad. However, like the input keypad illustrated in FIG. 3, phonemes of consonants and vowels other than the basic characters are assigned to the key buttons.

For example, according to the present embodiment, ('ㄱ', 'ㅋ'; 'ㄲ'), ('b', 'ㄹ'), ('ㄷ', 'ㅌ'; 'ㄸ'), (' ㅗ, 'ㅜ'; 'ㅛ', 'ㅠ'), ('ㅡ'), ('ㅣ'), ('ㅏ', 'ㅓ'; 'ㅑ', 'ㅕ'), ('ㅁ' , 'ㅂ', 'ㅊ'; 'ㅃ'), ('ㅅ', 'ㅈ', 'ㅊ'; 'ㅆ', 'ㅉ') and ('ㅇ', 'ㅎ') Assigned. Accordingly, according to the present invention, all the consonants and vowels of the Hangul are assigned to the adjacent key buttons, so that the user's convenience can be improved by optimizing the number of key inputs and the moving distance of the fingering when the characters are input. .

On the other hand, according to the present embodiment, all phonemes of the Hangul consonants and vowels can be assigned adjacent to the key button on which () can be assigned special characters that are frequently used in the '*' and '#' key buttons adjacent to them. For example, the '*' and '#' key buttons include ('*', '.', '^', ':'; '※', ',', '@', ';') and ( '#', '?', '(', '/'; '$', '!', ')', '|') Are assigned. '*' And '#' according to the present embodiment. 'Special characters arranged in each of the key buttons can be reset to a maximum of eight special characters according to the user definition, therefore, according to the present invention, the user's convenience by more conveniently assigning special characters frequently used by the user Can be further improved.

Meanwhile, the uppermost left and rightmost key buttons in FIG. 5 according to the present embodiment are positioned to increase the key button margin of the input keypad, but these key buttons can be omitted. In addition, the user's convenience may be further improved by imposing a function key on the additional key button or allowing the user to arbitrarily set a key.

FIG. 6 is a diagram illustrating another character arrangement of an input keypad of a character input device of a touch pad type electronic device according to an embodiment of the present disclosure. In particular, FIG. 6 relates to a character arrangement diagram when the input keypad is English.

According to this embodiment, the input keypad shown in FIG. 6 includes fifteen key buttons. In this case, a character ('(') having a function of converting into a second predetermined character having a close correlation with the inputted first character is disposed at the center of the input keypad. However, like the input keypad illustrated in FIG. 4, phonemes of consonants and vowels other than the basic characters are assigned to the key buttons.

For example, according to the present embodiment, ('S', 'B'; 'C', 'V'), ('T', 'F'; 'D', 'P'), ('G' , 'H'; 'Q', 'K'), ('A', 'E'), ('I', 'O'), ('U', 'Y'), ('W'), ('L', 'N'; 'R', 'M') and ('X', 'Z'; 'J') are assigned with the base character. Therefore, according to the present invention, all the letters of the English alphabet are allocated adjacent to the key button where (is) is arranged, thereby optimizing the number of key input and the moving distance of the fingering at the time of character input, thereby improving user convenience.

On the other hand, according to the present embodiment, by assigning all the letters of the English alphabet adjacent to the key button on which is placed, it is possible to arrange a function key that enables case conversion on the extra key button. 'Aa' to be displayed is arranged as shown in FIG.

In addition, similarly to the case where the input keypad of FIG. 5 is Korean, in FIG. 6, all English basic characters are frequently used for '*' and '#' key buttons adjacent to them by allocating adjacent English key buttons. Therefore, according to the present invention, it is possible to further improve convenience of the user by more conveniently assigning special characters frequently used by the user.

In addition, as shown in FIG. 5, the uppermost left and rightmost key buttons in FIG. 6 are positioned to increase the key button margin of the input keypad, but these key buttons may be omitted. In addition, the user's convenience may be further improved by imposing a function key on the additional key button or allowing the user to arbitrarily set a key.

7 is an exemplary flowchart illustrating a text input method in an electronic device according to an embodiment of the present invention. In particular, the present embodiment is an exemplary flowchart illustrating a character input method using the conversion key and the character input key in the Hangul character input device. On the other hand, from the beginning to the end of the flow chart is a character input flow representing one of the phoneme of the initial, neutral and final.

When a user manipulates a character input device of an electronic device by inputting a key through the input unit 210 of FIG. 2 to input Korean, the controller 250 of the character input device may execute a character input program stored in the memory unit 230. In operation, the Korean character is output by analyzing the key input signal input from the input unit 210 according to a predetermined algorithm.

When the character input program starts, the Hangul input mode is set (S602), and whether the key is input from the input unit 210, that is, whether the key button of the input keypad is pressed (S604), and when the key button is pressed Check whether the corresponding key button is a conversion key (S606). On the other hand, when the key button has not been pressed, it is again checked whether or not the key button is pressed until the key button is pressed in step S604.

When the character input device confirms in step S606 that the conversion key is not input, the character input device checks whether the key button of the consonant is input (S616), and if the key button of the consonant is not input, the key button of the vowel is input. Check whether or not (S624). Next, as a result of checking in step S624, the character input apparatus checks whether the special character is inputted in duplicate when the key button of the vowel is not input (S632).

When the character input device confirms in step S632 that the special character is not inputted repeatedly, the character input device outputs the inputted special character as the set special character (S634). On the other hand, when a special character is inputted in duplicate, the other special character preset to the special character is output as a special character set according to the number of duplicates (S634).

When the key button of the vowel is input in step S624, the character input apparatus checks whether the basic vowel is pre-input (S626), and if the basic vowel is not input, outputs the input basic vowel to the set vowel (S630). . On the other hand, if the default vowel is already input, it is checked whether the default vowel is duplicated (S628), and if the default vowel previously input is duplicated, the default vowel is set according to the number of other default vowels Output to the basic collection (S630). However, if the previously input basic vowels do not overlap, the set vowels that can be combined with the previously input basic vowels and the newly input basic vowels are output as set vowels (S630).

When the key button of the consonant is input in step S616, the character input apparatus checks whether the basic consonant has been previously input (S618), and if the basic consonant is not input, outputs the input basic consonant as the set consonant (S622). . On the other hand, if the basic consonants are already input, it is checked whether the basic consonants are duplicated (S620), and if the basic consonants previously input are duplicated, they are set according to the number of overlapping other basic consonants preset in the basic consonants Output the basic consonants (S622). However, if the basic consonants previously input do not overlap, a consonant which is a combination of the previously input basic consonants and the newly input basic consonants is output as the set consonants (S622).

When the conversion key is input in step S606, the character input apparatus checks whether the basic consonant and the basic character of the basic vowel have been previously input (S608), and if the basic character has not been input, whether the special character has been previously input or not. Check (S610). At this time, if a special character is not input, it is assumed that there is an error in the user's key input, and the user requests a key input again (S612), and again whether or not the key button is pressed until the key button of the input keypad is pressed again. Check (S604). On the other hand, if a special character is previously input, and outputs the special character according to the pre-input special character and the conversion key as a set special character (S636).

If the basic character is previously input in step S608, the character input apparatus checks whether the basic character previously input is a consonant (S614), and if it is not the consonant, sets the vowel according to the previously input basic vowel and the conversion key. Output as (S630). On the other hand, if the basic character is a consonant in step S614, the consonant according to the input basic consonant and the conversion key is output as a set consonant (S622).

On the other hand, this flowchart describes a case where Korean is used as an example. However, even in a character input device that inputs English or Chinese characters, a basic consonant or a basic consonant or a basic consonant with close morphological correlation centered on a conversion key By arranging a set of vowel phonemes, a character input method for optimizing the number of key inputs and the moving distance of a finger may be applied.

8 is an exemplary flowchart illustrating a character input method in an electronic device according to another embodiment of the present invention. In particular, the present embodiment is an exemplary flowchart illustrating a character input method using duplication of a conversion key and a character input key in a character input device. That is, referring to the flowchart according to the present embodiment and the drawings at the lower right, the conversion of the vertical direction of the character assigned to the key button is realized through the conversion key, and the horizontal conversion of the character assigned to the key button is duplicated. It shows by way of example to implement through. From the start to the end of this flowchart is a character input flow representing one character.

9 is a letter layout diagram of an input keypad in a character input device of an electronic device according to another embodiment of the present invention. The character layout according to the present embodiment relates to the case of Hangul input. In particular, the character layout diagram of FIG. 9 is similar to the character layout diagram of FIG. 3, but in order to improve the number of key inputs for ',', '' 'and' ㅃ ',' 0 'and' ㅎ 'are set to' You can further improve the text input speed by adding ㅁ '. In addition, the character arrangement diagram which concerns on this embodiment is not restrict | limited to FIG.

Tables 1 to 4 below show, as an example, a character input method according to an embodiment of the present invention.

In particular, Table 1 exemplarily shows input key combinations, key input numbers, and moving distances of Korean characters. For example, 'ㅃ' has a key combination of 885 and three key inputs, and the moving distance of the fingering has a distance between one key. According to Table 1, the conversion key is centered and the consonants and vowels are placed immediately adjacent to optimize the sum of the number of key inputs and the moving distance of the fingering when entering Korean characters.

Hangul consonants Key combination Keystrokes Distance Korean collection Key combination Keystrokes Distance A
Lol
ㄲ
One
11
15 One
2
2 0
0
One ㅏ
ㅑ
ㅓ
ㅕ 2
25
22
225 One
2
2
3 0
One
0
One N
D

3
33

One
2

0
0

ㅗ
ㅛ
TT
ㅠ 4
45
44
445 One
2
2
3 0
One
0
One C
ㅌ
ㄸ 7
77
75 One
2
2 0
0
One ㅣ
ㅡ
ㅢ 6
66
666 One
2
3 0
0
0 M
ㅂ
ㅍ
ㅃ

8
88
888
885

One
2
3
3

0
0
0
One

ㅐ
ㅔ
ㅚ
ㅟ
ㅘ
ㅝ 26
226
46
446
42
4422 2
3
2
3
2
3 One
One
2
2
One
One S
ㅈ
H
ㅆ
ㅉ 9
99
999
95
995 One
2
3
2
3 0
0
0
One
One ㅒ
ㅖ
ㅙ
ㅞ
256
2256
426
44226
3
4
3
5
2
2
2
2
ㅇ
ㅎ 0
00 One
2 0
0 Travel distance: distance between keys

In addition, Table 2 exemplarily shows an English input key combination. User convenience can be improved by simplifying key combinations as compared to the conventional English character input method. In addition, the key button margin of the input keypad can be increased by assigning English characters only to key buttons immediately adjacent to the conversion key. This allows the user to further improve user convenience by placing a case conversion function on the extra key button on the key button.

English spelling Key combination English spelling Key combination English spelling Key combination English spelling Key combination A 2 B 11 C 15 D 35 E 22 F 33 G 7 H 77 I 4 J 95 K 775 L 8 M 885 N 88 O 44 P 335 Q 75 R 85 S One T 3 U 6 V 115 W 65 X 9 Y 66 Z 99 Aa key: switch case

Table 3 shows an example of input key combinations of frequently used special characters assigned to '*' and '#' key buttons. The convenience of the user can be improved by increasing the number of special characters that can be assigned to the input keypad with the conversion key according to an embodiment of the present invention. In addition, the same number of special characters may be used in Korean, English, or foreign language character input devices.

sign Key combination sign Key combination sign Key combination sign Key combination * * . ** ^ *** : **** ※ * 5 , ** 5 @ *** 5 ; **** 5 # # ? ## ( ### Of #### $ # 5 ! ## 5 ) ### 5 | #### 5

In particular, Table 4 exemplarily shows an input key combination, a number of key inputs, and a moving distance of a Hangul sentence.

Combination Key combination Keystrokes Distance Combination Key combination Keystrokes Distance ratio 886 3 One dream 15448 5 3 Indian ink 8221 4 3 yen 02263 5 5 Well 0668 4 3 field 76633 5 3 minute 88443 5 3 Forget 0699 4 3 Hong 0040 4 4 of 06633 5 3 camp 9963 4 2 Number 944 3 2 month 7233 4 3 end 12 2 One Rae 3326 4 2 No 022889 6 6 One 0023 4 4 Ugh 066 3 2 Song 940 3 4 Lee 336 3 One this 06 2 2 . ** 2 0

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

210: input unit
220: output unit
230: memory section
240: processing unit
250: control unit

Claims

A device for entering characters in electronic devices,
An input keypad having two or more key buttons;
A conversion key disposed at a center of a plurality of key buttons of the input keypad and converting the first character into a second predetermined character having a close correlation with the input first character or converting the first character input state into a second character input state;
A character input key disposed at a minimum key button distance from the conversion key, wherein a set of basic consonants or basic vowel phonemes is assigned to each of the key buttons immediately adjacent to the conversion key;
A special character input key disposed on at least one key button adjacent to the character input key and to which at least one special character is assigned; And
And a controller configured to generate syllables in which a consonant and a vowel phoneme which are combineable according to the combination of the character input key and the conversion key and generate a special character that can be combined according to the combination of the special character input key and the conversion key. , Character input device of electronic devices.

The method of claim 1,
The first character is a consonant or vowel phoneme, and the second character is a consonant or vowel phoneme corresponding to the consonant or vowel phoneme.

The method of claim 1,
The character input key is a character input device of the electronic device to form a set of characters with a close phonetic correlation or a character with a close morphological correlation.

The method of claim 3, wherein
The set is 'ㄱ, ㅋ';'ㄴ,ㄹ';'ㄷ,ㅌ';'ㅁ, ㅂ, ㄷ';'ㅅ, ㅈ, ㅊ';'ㅇ,ㅎ';'ㅏ,ㅓ';'ㅗ,ㅜ'; And 'ㅣ, ㅡ, ㅢ', the character input device of the electronic device.

The method of claim 4, wherein
And after the consonant of the set is input to the first character, when the conversion key is input, the second character is converted into phonemes in which the first character is parallel to each other.

The method of claim 5, wherein
After one of the set of consonants is input as the first character, and if a third character, which is a basic consonant different from the first character, is input, the first and third characters are converted into phonemes The character input device of the device.

The method of claim 5, wherein
And after the vowel of the set is input as the first character, when the conversion key is input, the second character is converted into a phoneme synthesizeable with the first character.

The method of claim 3, wherein
The one set is 'B, S';'T,F';'G,H';'L,N';'X,Z';'A,E';'I,O'; And 'U' or 'Y'.

The method of claim 1,
The electronic device may be any one of a mobile communication terminal, PDA, PDDP, remote controller, e-book, Pocket PC, touch pad screen, camcorder, and vehicle navigation device. Character input device.

The method of claim 1,
The special character input key may be reset to up to four special characters according to a user definition.

A device for entering characters in electronic devices,
An input keypad having nine or more key buttons;
A conversion key disposed at the center of the plurality of key buttons of the input keypad and converting the first character into a second predetermined character having a close correlation with the input first character or converting the first character input state into a second character input state;
A set of basic consonants or basic vowel phonemes that are disposed at a minimum key button distance from the conversion key and that are correlated or formally correlated to each other are at least adjacent to each of the key buttons immediately adjacent to the conversion key. Assigned character input keys;
A special character input key disposed on at least one key button adjacent to the character input key and to which at least one special character is assigned; And
And a controller configured to generate syllables in which consonant and vowel phoneme which can be combined according to the combination of the character input key and the conversion key and to generate a special character that can be combined according to the combination of the special character input key and the conversion key. ,
Character input device of the electronic device, characterized in that for optimizing the number of key input for the character input and the moving distance of the fingering.

As a method of inputting characters into the electronic device,
An input keypad having nine or more key buttons; A conversion key disposed at the center of the plurality of key buttons of the input keypad and converting the first character into a second predetermined character having a close correlation with the input first character or converting the first character input state into a second character input state; A set of basic consonants or basic vowel phonemes, which are arranged at a minimum key button distance from the conversion key and has a close or morphological correlation, is assigned to each of the key buttons immediately adjacent to the conversion key. Character input key; A special character input key disposed on at least one key button adjacent to the character input key and to which at least one special character is assigned; And a controller configured to generate a syllable combining consonant and vowel phoneme which can be combined according to the combination of the character input key and the conversion key, and to generate a special character that can be combined according to the combination of the special character input key and the conversion key. In the electronic device,
When a first character input key and the conversion key of the plurality of character input keys are sequentially input, a modified character including parallel phonemes or synthesized phonemes of the first character input key pre-assigned to the first character input key is output. step;
When the first character input key and the second character input key of the plurality of character input keys are sequentially input, the first basic character assigned to the first character input key and the second basic character assigned to the second character input key Outputting a combination of sums; And
And sequentially outputting basic characters assigned to the first character input key when the first character input key is continuously input.

The method of claim 12,
The electronic device is any one of a mobile communication terminal, PDA, PDDP, remote controller, e-book, Pocket PC, touch pad screen, and vehicle navigation.

The method of claim 12,
The special character input key may be reset to up to four special characters according to a user definition.