WO2009072852A2 - Keypad assembly - Google Patents

Abstract

Disclosed is a keypad assembly, which includes a key part having a plurality keys arranged thereon to maximize convenience in using the key part and a module for recognizing selection of the key part so as to allow the user to select any character among various types of characters allocated to the key part by clicking only once.

Description

Description KEYPAD ASSEMBLY

Technical Field

[1] The present invention relates to a keypad, and particularly to a keypad assembly where a key part having a plurality of keys arranged thereon is assembled with a module for recognizing selection of the key part so that it is possible to select any one of various types of characters allocated in the key part by clicking once. Background Art

[2] In general, a 3 X 4 arrangement-keypad for inputting letters is typically employed in a small sized information device, such as a cellular phone. Such a keypad has a limited number of keys. Therefore, various types of characters (letters, numerals, specific character, etc.) are allocated to each key of the keypad. Further, a keypad input operation is performed only after selection of a character board in order to select one character from among multiple characters allocated to one key.

[3] That is, when the user has pressed a key, to which a letter desired by the user has been allocated, the device performs key scanning, recognizes the key-pressing, and processes input of a letter by the key-pressing.

[4] However, the key input operation in most cases corresponds to a complex key input including letters, numbers and particular letters, rather than a continuous input of one type of letters. Therefore, according to the conventional key input method requiring the user to always change the type of a character in order to input another type of character, it is very inconvenient for a user to perform a key input operation. Even worse, a user may leave erroneous letters without deletion or revise thereof in spite of his/her recognition, which may accelerate language distortion and extend the social problem.

[5] Also, since the conventional key part has a limited number of keys, a plurality of keys in the same type is allocated to each key. Therefore, if the user wants to select one of the keys, the user has to repeatedly click a corresponding key several times during a predetermined time. In order to input one character, there is no choice but to previously perform a setting click operation 4-5 times so that it is inconvenient to use the conventional keypad, and such operation makes the user easily feel tired. Disclosure of Invention Technical Problem

[6] Accordingly, the present invention has been made to solve the above-mentioned problems of a convention keypad assembly, which occurs in the prior art, and the present invention provides a keypad assembly, which improves a key input method so as to allow a user to select a character through only one-click, thereby remarkably reducing the number of clicking operations, and provides an improved key part, which has an increased size and allows the user to effectively use the area thereof or to conveniently use the key part, thereby maximizing convenience in using the keypad assembly. Technical Solution

[7] According to an aspect of the present invention, there is provided a keypad assembly, which allows a user to select various types of characters including letters, numerals, and specific characters, the keypad assembly including: a key part having a plurality of keys; and a key input recognition module, wherein the key input recognition module determines a character selected from a plurality of characters allocated to a corresponding key according to a number of times (input recognition times) recognized as key-input times, automatically recognizes the number of times recognized as key-input times based on time maintained after the key has been pressed once, and determines that key selection has been completed when the pressed key is released, and wherein input recognition times of each character, which are required for selecting a character, can be previously and optionally set by the user so that although the user selects any one of characters allocated to a key, the user completely selects the character in such a manner that he/she presses the key only once and controls maintaining time of the pressed key.

[8] According to another aspect of the present invention, there is provided a keypad assembly, which allows a user to select various types of characters including letters, numerals, and specific characters, the keypad assembly including: a key part having a plurality of keys; and a key input recognition module, wherein the key part has a plurality of keys allocated in such a manner that a plurality of characters are arranged on each key, and the types of the characters are not overlapping each other, and characters of a same type have a same number of times of input recognition, wherein the key input recognition module determines a character selected from the characters allocated to a corresponding key according to a number of times recognized as key- input times, automatically recognizes the number of time recognized as key-input times based on time maintained after the key has been pressed once, and determines that key selection has been completed when the pressed key is released, and wherein input recognition times of each character can be previously and optionally set by the user so that although the user selects any one of characters allocated to a key, the user completely selects the character in such a manner that he/she presses the key only once and controls maintaining time of the pressed key.

[9] The key part has an increased number of keys in comparison with a conventional key part, the key part has twelve basic keys arranged in a 3 X 4 arrangement and fourteen extension keys additionally arranged at outer parts of the basic keys, the extension fourteen keys are overlapped with outermost parts of the basic keys so as to save space of the key part, and each overlapped part is positioned between the keys or at one surface of key part.

[10] The key part includes 28 keys, which are as many as knuckles of both hands of a human and in an arrangement equal to arrangement of knuckles, which are formed when fingers of the both hands of the human face each other.

[11] The input recognition module detects key pressing time and notifies the user to a number of times of input by performing a method using eyesight, tactual sense, or auditory sense whenever the key pressing time is recognized as input.

Advantageous Effects

[12] According to the present invention, even in a case where various types of keys are allocated to each key, it is possible to complete selection of a desired character by clicking a key once. Also, it is possible to provide a key part having an improved structure, which allows everyone to use it conveniently and to easily become skillful in using the key part.

Brief Description of Drawings [13] The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which: [14] FIG.1 is a flow chart of an input recognition module according to the present invention; [15] FIGs. 2 and 3 are views showing a key part according to a first embodiment of the present invention; [16] FIGs. 4 and 5 are views showing the key part according to the first embodiment, in which numeral characters and specific characters are applied to the key part; [17] FIGs. 6 to 9 are views showing the key part according to the first embodiment, in which English alphabet characters are applied to the key part; [18] FIGs. 10 to 13 are views showing the key part of FIGs. 18 to 22 according to the first embodiment, in which Han-geul letters are applied to the key part; [19] FIGs. 14 to 17 are views showing the key part according to the first embodiment, in which numeral characters and Japanese letters are applied to the key part; [20] FIGs. 23 and 24 are views of the key part according to the first embodiment, in which various types of characters are completely applied to the key part; [21] FIG. 25 is a concept view of a key part according to the second embodiment;

[22] FIG. 26 is a view showing an example of the key part according to a second embodiment; [23] FIG. 27 is a concept view showing the application of the key part according to the second embodiment; [24] FIG. 28 is a view showing the key part according to the second embodiment, in which numerals and specific characters are applied to the key part; [25] FIGs. 29 to 32 are views showing the key part of FIG. 28, in which English alphabet letters are applied to the key part; [26] FIGs. 33 and 34 are views showing the key part of FIG. 28, in which Han-geul letters are applied to the key part; [27] FIG. 35 is a view showing the key part of FIG. 28, in which Han-geul letters and

Japanese letters are applied to the key part; [28] FIG. 36 is a view showing a portable terminal employing the key part according to the second embodiment;

[29] FIG. 37 is a view showing basic arrangement of numerals;

[D] FIGs. 38 and 39 are views showing arrangement obtained by adding English alphabet letters to the arrangement of FIG. 37;

[31] FIG. 40 is a view showing arrangement obtained by adding Korean letters to the arrangement of FIG. 37;

[32] FIG. 41 is a view showing arrangement obtained by adding Japanese letters to the arrangement of FIG. 37; [33] FIGs. 42 to 45 are views showing arrangement obtained by adding Korean and

English letters to the arrangement of FIG. 37; and [34] FIGs. 46 to 48 are views showing an improved arrangement of English letters according to the present invention.

Best Mode for Carrying out the Invention [35] A key pad assembly is an input means, which can be applied to any type of electronic products requiring a character inputting operation. The keypad assembly includes a key part as an external factor, which allows a user to select a character by clicking the key part, and an input recognition module for sensing selection of the key part, determining a selected character, and notifying the device of the selected character.

[36] < Input recognition nr>dule>

[37] The input recognition module determines a selected character according to a procedure shown in FIG. 1.

[38] The key part detects if a key is pressed (step s 10), and determines if unit time recognized as input (input recognition unit time) has passed by checking press maintaining time (step sl l).

[39] When a pressed state is maintained during the input recognition unit time, it is recognized that this state is the same as the state where one-click operation has been performed so that the number of times of input is increased by one (step si 2).

[40] It is preferred that such input recognition is notified to a user so as to allow the user to control key pressing maintaining time by herself/himself. Therefore, the user is allowed to recognize a time point, at which input is recognized through his/her eyesight, tactual sense, or auditory sense (step sl3).

[41] That is, the user can perform an input operation while checking a time point when input corresponding to one-click is completed by using a method of turning on/off an LED, outputting a predetermine sound, generating vibration, etc.

[42] Then, it is determined if key-pressing has been released (step sl4). When the pressed key has been released, it is determined which character has been selected from characters allocated to the corresponding key according to a value of the number of input times accumulated up to the time point of the release of the key-pressing (step s 15). Meanwhile, when key-pressing is maintained, it is again determined if input recognition unit time has passed after the number of times of input increased, and the procedure of steps si 1 to s 13 of accumulating the number of times of input recognition is repeatedly performed.

[43] According to the operation of the input recognition module described above, the user can conveniently complete the selection of a desired character allocated to a corresponding key by controlling the press maintaining time after clicking the key once.

[44] The number of times of input recognition of each character can be previously set and changed. For example, it is previously determined if an English capital letter has been selected or a Korean letter has been selected when it was recognized that the number of times of input recognition is one. As such, the number of times of input recognition, which is required for selecting a character, is previously set, and the priority order is given to a character, which is frequently used, so that the press maintaining time is reduced.

[45] The function of the input recognition module described above can have double effect by improving the key part. If it is possible to arrange characters without overlapping each other over the same type, press maintaining time is equally set according to the type of each character by changing recognition order according to the type of a character used frequently. Therefore, the user can conveniently use the key pad and can be easily familiar with use of the key pad.

[46] For example, if all 26 English capital letters are allocated to keys different from each other, respectively, so as to prevent at least two English capital letters from being allocated to each key, key press maintaining time for selecting English capital letters is equally applied to all English capital letters. Therefore, input errors can be reduced, and in a case where a recognition order is changed, the changed order can be equally applied to characters of the same type, thereby increasing functionality and convenience.

[47] When using the terms mentioned above, "same type", it is understood that capital letters and small letters are not in the same type.

[48] It is ideal to arrange all characters in such a manner that characters of the same type are not overlapped each other in each key. However, it is not easy to have a sufficient number of keys in actuality because of space problems.

[49] Hereinafter, the structure of the key part according to several embodiments, which has an increased number of keys, can allow a user to conveniently use it and to be easily familiar with it, and can minimize the space of the key part in spite of the increased number of keys, will be suggested.

[50]

[51] 1 ^"embodiment of a key part

[52] FIG. 2 shows a key part according to the first embodiment, which has the total of 26 keys including 12 basic keys arranged in a 3 X 4 arrangement type and 14 extension keys additionally arranged at outer parts of the basic keys in such a manner that they overlap keys positioned at outermost parts of the basic keys.

[53] An operational procedure of an input recognition module will be described below by using the key part of FIG. 2.

[54] For example, if four types of characters are allocated to the key part of FIG. 2, preference/numerals are allocated to a first board, language letters (they are Korean language letters in Korea) are allocated to a second board, English small letters, which are internationally common letters, are allocated to a third board, and English capital letters are allocated to a fourth board.

[55] A board for other specific letters is displayed on a screen according to classification so as to allow the user to select it.

[56] A Jeong-eum han-geul letter board is operated instead of a Korean letter board when a county having own language letters difficult to be inputted, (China, America, a country having no own language letters, a county, which has been a colony for a long time after a certain war, etc.) requires the Jeong-eum letter board.

[57] In a county using English as own language, a separate language letter board of each county is unnecessary so that only three types of letter boards, such as an English small letter board, an English capital letter board, and a preference/numeral board, are operated.

[58] It is assumed that Koran letters are allocated to a language letter board of each country, and the present invention will be described.

[59] In order to input letters in a small sized information device, such as a cellular phone, the user prepares a 26 keyboard having a geometric matrix structure (patent about a structure is put in practice), and after designating orders between the first, second, third, fourth letter board modes above all by using a control key, the user selects and outputs a letter by performing a key operation while thinking the ordinal sequence number of the letter board having the letter to be inputted.

[60] Four sets of matrix 26 key boards are simultaneously operated. When the user has pressed a key, the key turns on/off a previously standardized light (brightness, the cycle of turning on/off light, duty ratio, and RGB spectrum) so as to notify the pressing to the user and prepares an amp circuit and a speaker output circuit so as to output standardized sound (size, the cycle of intermittent sound, duty ratio, frequency, preference sound). According to use-environment, an audio output signal and an optical output signal can be off-set.

[61] A specific letter of picture or a picture pattern is prepared at one position of an LCD window so as to notify the user to key-pressing in a case where there is no LED circuit. The user can recognize key-pressing time in such a manner that the pattern repeatedly appears and disappears according to key press maintaining time, or a predetermined pattern, which is increased during key press maintaining time, is displayed.

[62] An audio circuit amplifies audible sound and outputs standardized sound pattern through a speaker.

[63] The sound pattern allows the volume of sound, change of frequency, intermittent sound, and specific sound, such as a wooden gong's sound/dropping water's sound, etc., to be operated with a set storage circuit. The operation of the audio circuit can be stopped according to use environment.

[64] If the user continuously presses a certain key so as to check an operational function of the key, an LED light stars to be turned on and off, and audible sound is continuously outputted while being intermitted at the same time.

[65] Therefore, while pressing the key, the user can view the number of times of the LED on/off and count the number of times of intermittent sound. After counting one, two, three, and four, the user can release the pressed the key.

[66] In general, when the user has pressed a certain key, intermittent sound notifying the user of key-pressing is outputted, and an LED light is continuously turned on/off. When the user stops pressing the key, output of sound and light is stopped. At this time, the number of times when the LED light has been turned on/off and the number of times when the intermittent sound has been outputted means selection of a letter board.

[67] The user presses the key having a letter allocated thereto, and in order to designate a letter board having the pressed key allocated thereto, the user stops pressing the key while considering the number of times when light has been turned on/off or the number of times when intermittent sound has been outputted. Herein, the key press maintaining time can be notified to the user through the number of times light or sound has been outputted.

[68] In order to achieve easy description, the number of times when LED light has been turned on will be used. When the user presses any key, and after the LED light has been turned on one time, the user releases the pressed key, a letter allocated to a corresponding key of a first mode letter board is outputted. Herein, the first mode letter board is designated to a Korean letter board.

[69] When the user presses a key, and after the LED light has been turned on two times, the user leased the pressed the key, a letter allocated to the corresponding key of a second mode letter board is outputted. Herein, the second mode letter board may be a preference/numeral letter board.

[70] When the user presses a key, and after the LED light has been turned on three times, the user releases the pressed key, a letter allocated to a corresponding key of a third mode letter board is outputted. Herein, the third mode letter board may be an English small letter board. When the user presses a key, and after the LED light has been turned on four times, the user releases the pressed key, a letter allocated to a corresponding key of a fourth mode letter board is outputted. Herein, the fourth mode letter board may be an English capital letter board.

[71] In general, in a case where the user performs a text massage, if the first mode is designated to a Korean letter board mode, the second mode is automatically designated to a preference/numeral letter board mode, the third mode may be designated to an English small letter board mode, and the fourth mode may be designated to an English capital letter board mode.

[72] It is assumed that the Korean letter board mode is set as a mode, in which letters are arranged according to the geometric matrix 26 keyboard structure, based on description of the first mode, and the user presses a numeral key [5].

[73] Letters allocated to a key having number '5' printed thereon may be a numeral [5], a

Korean letter [H ], an English small letter [k], and an English capital letter [K].

[74] When the user presses the numeral key [5], and after an LED light has been turned on one time, the user releases the pressed key, a letter of the first mode is outputted so that the Korean letter [ H ] is outputted.

[75] In the same way, when the user presses the key [5], and after the LED light has been turned on two times, the user releases the pressed key, a letter of the second mode is outputted so that the numeral [5] is outputted.

[76] According to the same manner, when the user presses the key [5], and after the LED light has been turned on three times, the user releases the pressed key, a letter of the third mode is outputted so that an English small letter [1] is outputted.

[77] According to the same manner, when the user presses key [5], and after the LED has been turned on four times, the user releases the pressed key, a letter of the fourth mode is outputted so that an English capital letter [L] is outputted.

[78] The user can set a priority order respective to letter board modes according to user character-environment in a letter board operation mode.

[79] According to the present invention, a conventional operation where the user repeatedly and consciously presses a key is undesirable. When the user performs an operation of pressing a key once, a nicro computer performs key scanning corresponding to the conventional operation of repeatedly pressing the same key so that the micro computer starts to recognize key-pressing, detects key press maintaining time, and displays passage of time by using a method of turning on LED light so as to allow the user to recognize the key-pressing maintaining time. The user releases the pressed key when the number of time when the LED has been turned on is completed, the number of time corresponding to an allocated letter board mode, a final letter is outputted. [80] The operation will be described below in detail.

[81] When the user has pressed a typical key, the nicro computer immediately recognizes key-pressing by performing key scanning and outputs a prescribed signal indicating recognition of the key-pressing through an LED optical outputting device and an audio outputting device.

[82] At this time, the user thinks a letter board mode having a letter to be outputted while watching LED light, which is turned on and off, and listening sound, recognizes the number of times when the light has been turned on, and maintains a pressed state of the key.

[83] At this time, the micro computer starts to recognize the key-pressing, and records a count value as the number of counting times into a previously set counter storing memory by performing key scanning. Then, the nicro computer performs an operation of turning on/off the LED light once and again performs the key scanning after a predetermined delay time has passed. If the nicro computer recognizes the key-pressing and determines that the recognized key-pressing is equal to the previous key-pressing, the nicro computer increases the previous count value, and performs an operation of turning on/off the LED light once.

[84] In performing the key scanning in the same manner, if whole procedure of the key scanning is completed once, and the pressed state of the key is released, it is determined that the key pressing operation has been finished. Therefore, the nicro computer searches for a final letter by selecting a letter board based on the pressed key checked through the key scanning and a count value stored in the storing memory and outputs the corresponding letter through the outputting device.

[85] There are two types of geometrical matrix 26 key board structures, and there may be a little difference in letter arrangement according to selection of a keyboard.

[86] FIGs. 2 and 3 show a basic structure of the keyboard. FIG. 2 shows a structure of a key part, where overlapped parts between basic keys and extension keys are positioned at outer surfaces of the outermost keys among basic keys, and FIG.3 shows a structure where overlapped parts between basic keys and extension keys exist between key parts. Both structures provide a 26 key part, save space, and allow a user to conveniently use it.

[87] FIGs. 4 and 5 show a case where only one numeral is arranged on each key, and

FIGs. 6 to 9 show a case where English letters are arranged on each key. FIGs. 10 to

13 and 18 to 22 show a case where Korean letters are arranged on each key, and FIGs.

14 to 17 show a case where Japanese letters are applied to a numeral board. [88] FIGs. 23 and 24 show an embodiment of a complete key part, in which various types of characters, which have been described separately, are allocated to each key. The key part has a very ideal key arrangement, in which 14 extension keys added to outer parts of the key part can be easily pressed, and basic keys overlapped with the 14 extension keys have each sufficient space required for selection.

[89] According to a conventional key part, the user presses the same key according to his/ her will so as to input a letter. Meanwhile, according to the present invention, when every user has pressed one key once, a micro computer recognizes key-pressing and notifies the user of the key-pressing through an outputting device. Then, the user releases the pressed key while watching the outputting device according to an operation where the micro computer repeatedly outputs a standardized signal. According to this procedure, the conventional operation of repeatedly pressing one key is replaced with an operation of the machine. As a result, a physical step where the user completely inputs a letter in such a manner that he/she repeatedly presses the same key or presses a key many times is remarkably simplified. Therefore, convenience in using the keyboard can be provided, and a method for rapidly and conveniently selecting a corresponding letter without a mode conversion can be provided so that there is an advantage in that accessibility of an information communication device and the speed of inputting a letter can be increased.

[90] In order to apply 28 letters of Hun-nin-jeong-eum (Korean scrip) instead of international phonetic alphabets to an information device so as to use them properly as language letters of each county, Hun-nin-jeong-eum 28 letters are allocated to a newly invented matrix 26 letter board (hereinafter, referred to as Jeong-eum keyboard) and are operated.

[91] Also, this Jeong-eum keyboard can be replaced with a Korean letter board.

[92] As shown in FIGs. 19, 20, 21, 22, and 23, in order to input a letter as an international phonetic alphabet, Jeong-eum letters are allocated to the key board and are operated.

[93] The Jeong-eum letter board is a separated type letter board, in which initial consonants and final consonants are separately operated. In order to achieve this, the Jeong-eum letter board has to be operated by using two sets of letter boards.

[94] Initial and final consonant letters are positioned at the same keyboard, letter board selection count values of them are differently operated, and only letters -LL, ]= ,TT, and T are operated in a second board.

[95] In order to input an initial consonant letter, when the user presses an initial consonant letter key, and after light has been turned on/off one time, the user releases the pressed key, an initial consonant letter, which corresponds to the selected key, in a first Jeong- eum keyboard is inputted. Meanwhile, in order to input a final consonant letter, when the user presses a key on the same keyboard, and after light has been turned on/off two times, the user releases the pressed key, a final consonant letter, which corresponds to the selected key, in a second Jeong-eum keyboard is inputted. [96] Vowels are allocated to the first Jeong-eum keyboard and are inputted after the light has been turned on/off once. The letters -LL, ]= ,TT, and T are allocated to the second

Jeong-eum keyboard. [97] Also, a Korean letter board of a separated type can be operated by using Jeong-eum keyboard arrangement. [98] The example of a method for performing the function of the Jeong-eum keyboard to input international phonetic alphabets, which is used in several counties, will be described below. [99] 1. An example of a method for marking English letters by using Jeong-eum marking and inputting the English letters. [100] An input of word [this] requires input of letters [u: 1 -i]. A method for inputting keys will be described below. [101] When an initial letter [^L ] key is pressed, the key is released after the light has been turned on/off one time. [102] When an initial letter [τ= ] key is pressed, the key is released after the light has been turned on/off one time. [103] When a medial letter [1] key is pressed, the key is released after the light has been turned on/off one time. [104] When an initial letter [A] key is pressed, the key is released after the light has been turned on/off one time. [105] When a medial letter [ — ] key is pressed, the key is released after the light has been turned on/off one time.

[106] 2. An example of a method for marking Japanese letters by using Jeong-eum orthography and inputting the Japanese letters. [107] An input of word [ -fc l£ X h z: ^ ^ t i^~] requires input of letters [_$-^>-S- o π _u

Δ } O ] π f A — ]. A method for inputting keys will be described below. [108] When an initial letter [ O ] key is pressed, the key is released after the light has been turned on/off one time. [109] When a medial letter [-J-] key is pressed, the key is released after the light has been turned on/off one time. [110] When an initial letter [^~s^~] key is pressed, the key is released after the light has been turned on/off one time. [I l l] When a medial letter [ } ] key is pressed, the key is released after the light has been turned on/off one time. [112] When an initial letter [ O ] key is pressed, the key is released after the light has been turned on/off one time. [113] When a medial letter [-LL] key is pressed, the key is released after the light has been turned on/off one time. [114] When an initial letter [ O ] key is pressed, the key is released after the light has been turned on/off one time. [115] When an initial letter [ π ] key is pressed, the key is released after the light has been turned on/off one time. [116] When a medial letter [-J-] key is pressed, the key is released after the light has been turned on/off one time. [117] When an initial letter [ Δ ] key is pressed, the key is released after the light has been turned on/off one time. [118] When a medial letter [ } ] key is pressed, the key is released after the light has been turned on/off one time. [119] When an initial letter [ Δ ] key is pressed, the key is released after the light has been turned on/off one time. [120] When a medial letter [ 1 ] key is pressed, the key is released after the light has been turned on/off one time. [121] When an initial letter [u ] key is pressed, the key is released after the light has been turned on/off one time. [122] When a medial letter [ } ] key is pressed, the key is released after the light has been turned on/off one time. [123] When an initial letter [A] key is pressed, the key is released after the light has been turned on/off one time. [124] When a medial letter [ — ] key is pressed, the key is released after the light has been turned on/off one time.

[125] 3. An example of a method for marking Chinese letters by using jeong-eum orthography and inputting the Chinese letters. [126] An input of word

A method for inputting keys is described below. [127] When an initial letter [ϋ^"] key is pressed, the key is released after the light has been turned on/off one time.

[128] When a medial letter [ } ] key is pressed, the key is released after the light has been turned on/off one time.

[129] When a final letter [^L ] key is pressed, the key is released after the light has been turned on/off two times.

[ID] When an initial letter [ O ] key is pressed, the key is released after the light has been turned on/off one time.

[131] When a medial letter [TT] key is pressed, the key is released after the light has been turned on/off two times.

[132] When a medial letter [ 1 ] key is pressed, the key is released after the light has been turned on/off one time.

[133] When an initial letter [^] key is pressed, the key is released after the light has been turned on/off one time.

[134] When an initial letter [^] key is pressed, the key is released after the light has been turned on/off two times.

[135] When a medial letter [T] key is pressed, the key is released after the light has been turned on/off one time.

[136] When a final letter [ O ] key is pressed, the key is released after the light has been turned on/off two times.

[137] An operation according to the Japanese letter inputting method will be described below in detail.

[138] Kana tenth column letters are sequentially allocated to extension keys added to outer parts of basic keys. The fifth row letters are inputted by using each Kana tenth column key according to a key maintaining time counting value.

[139] For example, in a case where the user presses a key [T], when the user releases the pressed key after the light has been turned on/off once, a first row letter [T] is inputted, and when the user releases the pressed key after the light has been turned on/ off two times, a second row letter [ Λ ] is inputted. According to the same manner, when the number of times when the light has been turned on/off is three, a third row letter [^7] is inputted, when it is four, a fourth row letter [^] is inputted, and when it is five, a fifth row letter [ir\ is inputted. For example, in a case of a key ["*t ], when it is recognized through key-press maintaining time that the number of times when the light has been turned on/off is one, a letter ["t ] is inputted, when it is two, a letter [ i/ ] is inputted, when it is three, a letter [X] is inputted, when it is four, a letter [Hz] is inputted, and when it is five, a letter [V ] is inputted. [140] In order to change an inputted Japanese letter into a Chinese letter, the user presses a [Hl^] key once so that corresponding Chinese letters are displayed through an outputting device. Then, the user selects a final Chinese letter by pressing a numeral key corresponding to a numeral allocated to a corresponding Chinese letter so that the final Chinese letter is displayed.

[141] A function key [/Wt> ] functions as a functional key for determining if a current keyboard is used as a Kata kana letter board or as a Hira gana letter board.

[142] A functional key [Space] for moving a letter back together with a functional key [Del ] for deleting one previous letter is used in inputting Japanese letters.

[143] In order to input letters into an information device, such as a cellular phone, a matrix keyboard of 3 x 4 arrangement standards, in which numerals are allocated to each key, is used for inputting numerals. In addition, through mode change, language letters of each county together with English letters, which are internationally common letters, are allocated to the same keyboard.

[144] Because letter inputting activity increases as use environment of an information device has been extended under development of information communication, a conventional keyboard has a limitation in inputting letters. This limitation means that the conventional keyboard functions as only a numeral keyboard for making a call. Therefore, it is required to develop a new keyboard used only for inputting letters.

[145] The present technique is provided to reduce physical burden given to the user when inputting letters by increasing the number of keys while maintaining a conventional keyboard standard and to increase convenience in inputting letters, which are internationally and commonly used, and accessibility of a keyboard.

[146] Until now, when the user inputted letters, the user had to select a letter by repeatedly pressing the same key according to his/her own will so that physical burden due to repetitive operations were given to the user.

[147] Therefore, according to the present technique, while the user presses a key, an operation of repeatedly pressing the same key is performed by a nicro controller. In order to allow the user to observe the repetitive operations performed by the nicro controller, an additional device for notifying the repetitive operations to the user through light or sound has to be used.

[148] Such technique can be achieved based on the technique for programming a nicro computer to be intelligent.

[149] Most information devices already have a sound outputting device embedded therein and have an LCD displaying device included therein. Therefore, the invented technique can be easily implemented.

[150] Applicability of the present technique has ever been demonstrated through a research for checking applicability, accessibility, speed, etc. thereof and a prototype implemented by using the previous applied technique. However, under a current technical environment, various types of information devices require a letter board used for inputting letters. Therefore, a keyboard, which has a new letter board structure employing a part of the previously applied technique, is designed based on 26 English Alphabet letters used as internationally common language. Differently from a conventional method for selecting an English letter by repeatedly pressing a key due to limitation of the number of keys, a method for selecting a letter by using a keyboard having one key-one letter allocation of each letter board is used. As a result, there is an advantage in that speed of inputting letters is increased, and accessibility of an information device and effectiveness in learning how to input letters are superior.

[151] The present invention has superior intimateness about a keyboard since it is based on a conventional 3 x 4 matrix key structure, and extension keys are added to edges of keys so that an edge space of each key is used in a maximum degree. Therefore, keys have a size and a structure similar to conventional keys.

[152] Thanks to a complex and multi-dimensional technique of the present invention, it is expected that a superior letter inputting means using this technique will be provided to the user and will be developed to be an internationally standardized letter inputting device of an information communication device.

[153] For example, a keyboard of a TV remote control, and a personal computer/a desktop computer in an application field of a letter inputting device will be replaced with a keyboard according to the new technique. The application range of the new technique is enlarged to application of a norebang remote controller, a keyboard having a letter inputting function as well as a mouse function, a device, in which a PDA and a cellular phone are integrally formed, a letter inputting device of a wire phone, a keyboard of a learning apparatus, a merchant accounting device, thereby achieving information transnission/exchange/storage/output between nations through a Jeong-eum of a separate type letter inputting method, etc. Also, it is expected that the technique is used between an information device and a letter inputting device through mutual wire (USM standards)/wireless radio frequency identification (RFID) so that letter inputting device technique standard will be developed and applied to each information device.

[154] Therefore, this technique will be a foundation for developing an exclusive chip used only for supporting letter-input and for generalizing Korean letters to be internationally standardized phonetic characters marked as international language. Afterward, as Korean language becomes internationally standardized language, all types of letters used in global villages will gradually disappear, and only Korean language exists on the earth. In a separate letter inputting device for inputting letters, a separate letter inputting board will disappear due to the prior art.

[155] Therefore, all types of languages in the world are marked by using Korean Jeong- eum letters. According to establishment of a previously applied Hun-nin-jeong-eum evolution code, language information between nations will be exchanged, stored, processed.

[156] 2 "^"embodiment of a key part

[157] According to another embodiment, a key part (a both hand thumb keyboard) having 28 keys arranged based on the concept of fingers of both hands is provided. In a state where fingers of both hands face each other as shown in FIG. 25, the key part has a shape formed by copying the number of knuckles and the shapes thereof without any change as shown in FIG. 26. There is an advantage in that a user can learn arrangement of the key part anywhere while watching his/her hands as shown in FIG. 7.

[158] The present invention suggests the both hand thumb keyboard, which can be compatible with use-standards of a one hand thumb keyboard and has an increased number of letter keys. A letter board corresponding to each type of letters is prepared, and the priority selection order of each letter board is automatically or passively designated. When the user repeatedly presses a key in an automatic or passive manner, the user selects a letter board according to the number of times when the key has been repeatedly pressed and completely inputs a letter allocated to the pressed key of the letter board.

[159] In the new both hand thumb keyboard, a numeral/preferential letter board, an English alphabet board, a county language board (English, Korean, Japanese, Chinese, etc.) are operated on 24-28 keys arranged based on the shape formed by 28 knuckles of fingers of both hands according to a use-mode.

[160] The characteristic of the both hand thumb keyboard will be described below in detailed.

[161] The 28 keys of the both hand thumb keyboard are formed based on the concept of constellations of 28, which is known as astronomical universe number. This concept includes the polar star and a yut board displaying 28 constellations, and there is a three-dimensional pyramidal structure formed by lifting the board centering the polar star, which is a central point of the yut board. [162] Such structural dynamics is dynamics of the universe, and such number 28 can be found in a human. The number of knuckles in fingers of human's both hands is 28. The both hand thumb letter board is formed in such a manner that a matrix letter board shaped based on the concept of 14 knuckles of a left hand and a matrix letter board shaped based on the concept of 14 knuckles of a right hand, i.e. two matrix letter board integrate each other side by side in a left-right direction. It is possible to allocate 28 letters to the both hand matrix letter boards corresponding to knuckles of both hands.

[163] Keys corresponding to shapes of total four knuckles of both thumbs, which are obtained by adding two knuckles of each thumb to each other, are optional keys. Therefore, the keys may function as a letter key or a control letter function key according to the number of letters in the language of a county using the both hand thumb keyboard.

[164] In a case where the user typically inputs letters, if the user designates priority orders between boards in such a manner that a first board is designated to an English alphabet small letter board, a second board is designated to a numeral/referential letter board, a third board is designated to an English alphabet capital letter board, and a fourth board is designated to a specific letter board, the user can input letters in an easy manner.

[165] The user presses each corresponding key only once when he/she inputs an English small letter. When the user wants to input numerals, the user presses a key, to which a desired numeral to be inputted has been allocated, two times so that the corresponding numeral is inputted. As such, a procedure for selecting a letter board is omitted when the user inputs letters in different types, so that the user can input letters in an easy, rapid, and convenient manner.

[166] An information device, in which a separate letter input board can not be included, displays a letter board on a screen through a displaying apparatus and includes a touch panel so as to allow the user to input letters.

[167] Particularly, a touch-type information device has a superior design, but has a little slow response speed. Therefore, since it is inconvenient for the user to recognize key- pressing, it is advantageous for the touch-type information device to use a method for automatically performing an operation of repeatedly pressing the same key.

[168] In a case where a key pressing automatic mode is selected, when the user touches a key, to which a letter to be inputted has been allocated, once so as to input the letter, sound, light, etc. indicating key-pressing time notified to the user so that the user recognizes selection of a letter board through the key-pressing time instead of the number of times when the user has pressed the key. Therefore, all types of letters can be inputted by a one touch method, and if the user releases key-touch, he/she completely inputs letters.

[169] An information device, through which a user performs various functions but does not frequently perform a letter input service, has an advantage to employ a touch-type method allowing a superior design of the device.

[170] The both hand thumb letter board is a matrix-type letter board having 28 letter keys arranged thereon, and in order to input 26 English alphabet letters used as internationally common language, as shown in FIGs. 29 to 32, letters are allocated to 26 keys, and two remaining keys are set as control keys.

[171] In a case where the number of keys is large, if the two keys are generally allocated as a functional key for deleting letters, which are frequently inputted, and a functional key for moving one letter back, respectively, the user can conveniently input letters.

[172] Various types of letter boards are used for allowing the user to simultaneously, easily, rapidly, conveniently select and input all letters, which are allocated to the various types of the letter boards, such as a numeral/referential letter board, an English alphabet small letter board, an English alphabet capital letter board, a board for letters in each country language, a specific letter board, etc., in such a manner that the user presses a key.

[173] In order to select and input one letter, a letter board is selected and a letter allocated to the pressed key in the selected letter board is finally inputted once according to controlling key-pressing time. If the user releases the pressed key, the user can finish inputting the letter.

[174] A human's one hand has five fingers and 14 knuckles including basic 12 knuckles of four fingers, i.e. three knuckles of each finger, and two knuckles of a thumb.

[175] A keyboard formed based on such basic twelve knuckles of fingers refers to a one hand thumb keyboard.

[176] The both hand thumb keyboard is a letter board based on twelve knuckles of a left hand and twelve knuckles of a right hand and basically includes two matrix letter boards. According to use environment, two letter boards are used together with each other or are used after they are separated from each other, thereby providing convenience in using them.

[177] In order to configure a letter board including the number of knuckles of thumbs of both hands according to the number of letters in language of each county, keys corresponding to the thumbs knuckles are set as optional keys so that letter key enlargement is achieved. [178] In a case of an English alphabet letter board, the number of English alphabet letters is twenty six, letter keys, which correspond to twenty four knuckles of fingers, except for thumbs, of both hands and two lower knuckles of thumbs knuckles, are formed, and letters are arranged on letter keys, respectively.

[179] Since the number of Korean alphabet letters is 24, letters are arranged on 24 keys corresponding to knuckles of fingers, except for thumbs, of both hands, respectively.

[180] The number of knuckles of human's fingers including thumbs is 28, so that remaining knuckles, except for 24 knuckles corresponding to 24 letters, are set as a functional key.

[181] If Han-geul Jeong-eum is applied, it is possible to allocate 28 letters of Hun- nin-Jeong-eum to knuckles, respectively.

[182] All 28 letters are applied to the both hand thumb board shaped based on knuckles of fingers of both hands.

[183] Specially, in Korean alphabet letters, initial letters are equal to final letters due to configuration of a letter. Therefore, when a separate letter code is generated, the initial letters and the final letters can be allocated to a separate letter board.

[184] Herein, when a left palm is rotated in a clockwise direction and a right palm is rotated in a counterclockwise direction in a state where the palms of both hands are unfolded, the both hand thumb board has two knuckles of each thumb, twelve knuckles of four fingers extending from the left palm in 3 x 4 matrix structure, and twelve knuckles of four fingers extending from the right palm in 3 x 4 matrix structure.

[185] According to each mode, English alphabet letters, country language letters, and numeral and referential letters are allocated to a letter figure board (hereinafter, referred to as a both hand thumb letter board) having a matrix letter board, which is shaped based on 26 knuckles obtained by adding two lower knuckles of both thumbs to the 24 knuckles, and one or two optional letter keys added to an upper part of the matrix letter board.

[186] Without conversion of a letter board, the user can easily, rapidly, and conveniently input each letter in a plurality of letter boards by using the number of times, which is recognized by key-pressing.

[187] The priority selection order with respect to a plurality of letter boards is determined by designating a letter board of each mode.

[188] The priority order respective to the letter boards is designated through mode conversion, and numeral/referential letters, English alphabet letters, language letters of each country are allocated to keys, respectively, according to each letter board so as to be used.

[189] As shown in FIG. 28, in a cellular phone, the left hand thumb keyboard is a 3 x 4 matrix keyboard having numerals (0,1, 2,3,4,5,6,7, 8, and 9) and two specific functional letters (* and #) allocated thereto, and the right thumb keyboard is a 3 x 4 matrix keyboard, to which referential letters[~,@,$,%,^Λ,&, *,+,_,=,(,),? and :] used together with personal computer-numeral keys, etc. are allocated, and is used as a numeral/ referential letter board.

[190] In a case of English alphabet letters, English alphabet letters are sequentially allocated to 26 keys of both hand thumb letter board, which includes keys of two 3 X 4 letter boards and two optional letter keys, one by one.

[191] In a case of language letters of each county, positions of language letters of each county are designated in consideration of a characteristic of letter configuration in each county's language.

[192] In allocating English alphabet letters to the both hand letter board, letters Q and Z having low use frequency are allocated to option keys positioned at left and right upper parts of the both hand letter board, respectively, and remaining English alphabet letters can be sequentially allocated in a direction from a left upper part to a right lower part of the both hand letter board.

[193] A three-Taegeiic part of an upper part of a center of the letter board means combination of functional keys basically operated in an information device.

[194] 'COREA' which is the common title of all letter boards, is original sound language of KOREA, which has been internationally called, and means a county that invents the letter boards. According to environment, the letter board is referred to as a butterfly keyboard, which is shaped similar to butterfly, a both hand thumb keyboard, etc.

[195] Letter allocation in each mode will be described below.

[196] First, a numeral/referential letter board will be described.

[197] Numeral/referential letter allocation will be described.

[198] Ten numeral letters (0,1,2,3,4,5,6,7,8, and 9) and two functional characters (* and #) allocated to a 3 X 4 area of a letter board shaped based on knuckles of fingers of a left hand so as to maintain compatibility with the user of the conventional one hand thumb letter board. A 3 x 4 area of a letter board shaped based on knuckles of fingers of a right hand is an area having the number of keys obtained by increasing the number of keys of the conventional the one hand thumb letter board. Referential letters, etc. (~,!,@,$,%.^Λ,&, (,),-,+,:, ;,?,and/) added numeral keys of a personal computer keyboard are allocated while keeping similar mutual compatibility. [199] Second, an English alphabet letter board will be described.

[200] English small letters, except of English letters Q and Z, are sequentially allocated to twenty four keys positioned at both sides of the 3 x 4 letter board of the both hand thumb letter board, respectively, and the letters Q and Z are allocated to keys corresponding to knuckles of both thumbs, respectively. An English capital letter board is formed in the same allocation manner, and is operated as a separated letter board.

[201] English alphabet letters are sequentially allocated in a direction from an upper part of the letter board to a lower part thereof. The letters Q and Z having a low use frequency are allocated to areas of the letter board, which correspond to knuckles of both thumbs, respectively. Remaining letters are allocated in a direction from a left upper part of the letter board to a right lower part thereof one by one.

[202] The English capital letter board and the English small letter board are separately operated and have the same letter allocation order.

[203] As shown in the English capital letter board of FIGs. 29, D, 31, and 32, the number of the English alphabet letters is 26, and if a DEL functional key and a SPACE functional key are allocated to areas corresponding to two knuckles of thumbs of both hands, the user can conveniently input letters.

[204] Third, allocation of language letters of each county will be described.

[205] Language letters are allocated to keys of a board for language letters of each county, respectively, and an inputting method is determined while considering a characteristic of the language letters of each county and convenience in using the board. Each county language can be a little difference according to an operation method.

[206] Allocation of Korean alphabet letters will be described below.

[207] As shown in FIGs. 33 and 34, under application of yin-yang five elements, each consonant letter is allocated to each one of twelve knuckles of fingers, except for a left thumb, two letters O and ^"S^" are allocated to knuckles of a right hand, respectively. 10 vowels are allocated to knuckles of a right hand, respectively. Keys corresponding to end knuckles of each thumb are used as a DEL functional key and a SPACE functional key. In a case where Hun-nin-geong-eum 28 letters are applied, all twenty eight keys are used.

[208] Allocation of Japanese letters is shown in FIG. 35. A functional key [7|7^] ] [/Wt> ] among 28 keys of a both hand thumb keyboard matrix is a functional key for selecting input of Japanese kata kana letters [fr ϊz. fr tf ] and input of hira kana letters [t> ^ fr tf ]. In a Japanese letter input mode, if a Hira kana letter is automatically selected, the user can optionally select the type of the letter and change the type of the letter by using the functional key when he/she uses the keyboard in an initial step or while he/ she uses the keyboard.

[209] In order to select an initial letter key in the tenth column, which is positioned at a right side of the both hand matrix letter board and inputs a fourth row letter, the user successively presses a fourth row letter key positioned at a left side of the both hand matrix letter board so as to completely input a final letter. When it is necessary to change a complete Japanese letter to a Chinese letter, the user presses a [1^}][?ll^] functional key. Then, Chinese letters having own number added thereto are displayed on a displaying window, and the user selects a desired Chinese letter by pressing a numerical key positioned at the left side of the letter board. Therefore, the use completely inputs the desired Chinese letter.

[210] An embodiment showing actual application of the both hand thumb letter board will be described. Letter allocation boards of four sets are prepared.

[211] Numeral/referential letters are allocated to a first board.

[212] English small letters, which are internationally common language letters, are allocated to a second board.

[213] English capital letters, which are internationally common language letters, are allocated to a third board.

[214] Language letters of each country are allocated to a fourth board. Korean letters are allocated as country language letters.

[215] Other specific letter boards are displayed on a screen according to classifications so as to allow the user to select the boards.

[216] A Jeong-eum Korean letters board (Hun-nin-Jeong-eum 28 letters) is used instead of a Korean letter board when the Jeong-eum letter board is used in a county (China, America, a county having no own language, a county, which has been a colony after a war, etc.) having difficult language to be inputted.

[217] In a county using English language, a separate county language letter board is unnecessary. Four letter boards, such as a numeral/preferential letter board, an English capital letter board, and a specific letter board can be basically operated.

[218] A method for inputting country language letters will be described.

[219] A letter inputting method employed in countries using English language will be described below. There is no need for operating a separate county language letter board in countries using English language. In considering priority orders of letter boards in a letter input mode, if a first mode is set for an English small letter board, a second mode is automatically set for a numeral/preferential letter board, a third mode is automatically set for an English capital letter board, a fourth mode is automatically set for a specific letter board. The user can optionally control designation of priority order.

[220] A procedure of inputting letters by using a both hand thumb letter board in countries using English languages will be described. If it is assumed that a numeral key [5] is pressed, letters allocated to a key having numeral 5 printed thereon may be a numeral [5], and an English small letter [h], and an English capital letter [H]. According to the number of times when the user has pressed a key, a letter is changed. That is, when the user has pressed the corresponding key once, the letter [h] is inputted and displayed, when the user has successively pressed the key two times, the letter [5] is inputted and displayed, when the user has successively pressed the key three times, the letter [H] is inputted and displayed. Other letters are inputted in the same manner.

[221] In a case where county language letters are used in countries except for countries using English language, if it is assumed that Korean letters is designated as language letters of each country, and the user sets a first mode for a Korean letter board by using a control key, the priority order is designated in such a manner that a second mode is automatically set for a numeral/referential letter board, a third mode is automatically set for an English small letter board, and a fourth mode is automatically set for an English capital letter board.

[222] In a letter inputting more, a procedure of inputting Korean letters will be described below.

[223] It is assumed that the user presses a numerical key [5] among twelve eight letter keys of the both hands thumb keyboard matrix. Letters allocated to a key having numeral 5 printed thereon are a Numeral [5], a Korean letter [τ= ], an English small letter [h], and an English capital letter [H]. According to the number of times when the user has pressed a key, a letter is changed, and the changed letter is inputted. That is, when the user has pressed the corresponding key one time, the letter [^ ] is inputted and displayed, when the user has successively pressed the key two times, the letter [5] is inputted and displayed, when the user has successively pressed the key three times, the letter [h] is inputted and displayed, and when the user has successively pressed the key four times, the letter [H] is inputted. Other letters are inputted in the same manner.

[224] In a letter inputting mode, a procedure of inputting Japanese letters will be described below.

[225] A functional key [7|7^] ][/Wt> ] among twenty eight keys of a both hand thumb keyboard matrix is a functional key for selecting input of Japanese Kata kana letters [^ Tz fr tc ] and input of hira kana letters [V- t> fy tf ]. In a Japanese letter inputting mode, if a Hira kana letter is automatically selected, the user can optionally select the type of a letter and change the type of a current letter by using the functional key when he/she uses the keyboard in an initial step or while he/she uses the keyboard.

[226] In order to select a key, which has a tenth column initial letter allocated thereto and is positioned at a right side of the both hand matrix letter board and to input a fourth row letter, the user successively presses a fourth row letter key positioned at a left side of the board and completely inputs a final letter. When there is a need for changing the Japanese letter to a Chinese letter after the Japanese letter has been completely inputted, the user presses a [Chinese letter] [Hl^] functional key. Then, Chinese letters having each selection numeral is added thereto are displayed on a displaying window, and the user selects desired Chinese letter by pressing a numerical key, which corresponds to selection numeral of the selected Chinese letter and is positioned at a left side of the board, thereby completing input of the selected Chinese letter.

[227] When inputting Japanese letters, the user input a letter by pressing a corresponding key once, and an initial inputting step is started by pressing a tenth column letter key. In an initial state of a Hira-kana letter board, when the user has pressed a tenth column letter

is inputted and displayed. Subsequently, when the user has pressed a fourth row letter [⁰I ][I^] key, the letter "7]-[^]" is changed to a letter "7] [ # ]". When the user has successively pressed the tenth column letter [7]-[^]] key two times, a referential letter [?] is inputted, When the user has successively pressed the tenth column letter [7]-[^]] key three times, an English small letter "o" or "g" (an English alphabet letter allocated to the corresponding key)is inputted, and when the user has successively pressed the tenth column letter [7]-[^]] key four times, an English capital letter "O" or "G" is inputted.

[228] In inputting language letters of other counties, letters can be variously allocated according to use environment, and an inputting method can be modified a little.

[229] In order to input English small letters, numerals/preferential letters, English alphabet capital letter, and English alphabet small letters, the user inputs letters after mode conversion in a conventional technique. However, according to the present invention, it is possible to simultaneously input and display all letters allocated to various letter boards without mode conversion in an automatic or passive manner through recognition of the number of times when the same key has been pressed.

[2D] Particularly, a letter is completely inputted in such a manner that a corresponding key is pressed only once and released in an automatic mode. Therefore, this inputting method is very advantageous to be used in a touch-type letter inputting device.

[231] In order to input letters into an information device, such as a cellular phone, each numeral allocated to each key of a matrix keyboard of 3 x 4 standards as the standards of a one-hand keyboard so that each allocated numeral is used for inputting numerals. Also, language letters of each county together with internationally common English letters are allocated to the same keyboard through a mode conversion.

[232] Letter inputting activities have been increased because information device-use environment has been enlarged as information communication has been developed. Therefore, there is a limitation in that various letters are inputted by using a conventional keyboard. The conventional keyboard is only a numerical keyboard for making a call. Therefore, it is required to develop an exclusive keyboard for inputting new letters.

[233] The present technique provides a new letter board, which occupies a small area of an information device and is used for inputting various types of letters under computer Internet environment, and a letter inputting method. Also, the present technique allows the number of keys in various types to be increased while maintaining the standard of a conventional keyboard, thereby reducing physical burden given to the user due to a letter inputting procedure, which is required for inputting letters in an easy, rapid, and convenient manner. Also, the present technique provides a new letter inputting method, which can be internationally and commonly used.

[234] The present technique suggests a both hand thumb letter board having an increased number of keys, which is obtained by increasing the number of keys of a conventional one hand thumb keyboard, that is, a both hand thumb matrix letter board. Priority orders of both hand thumb letter boards are designated, and letters are allocated to keys of each letter board, respectively. The user inputs a letter in such a manner that a final letter is determined by using a selected key through recognition of the number of times when the same key has been repeatedly pressed (in an automatic/passive manner). As such, a method for inputting letters in an easy, rapid, and convenient manner is provided.

[235] Therefore, each keyboard of an IPTV remote controller and a personal computer/a desktop computer in an application field of a letter inputting device of an information communication device is replaced with the keyboard according to this technique. Also, this letter inputting method will be applied to a norebang remote controller, a keyboard having a letter inputting function as well as a mouse function, a device, in which a PDA and a cellular phone are integrally formed, a letter inputting device of a wire phone, a keyboard of a learning apparatus, a merchant accounting device. Particularly, this letter inputting method has an advantage to be applied to a touch- screen type information device of a small size, which requires good design thereof above all.

[236] Also, it is possible to product a code generation semiconductor chip for generating a letter code used only for inputting letters. Thanks to this chip, this technique can be applied to letter inputting devices of various types of information apparatus.

[237] FIG. 36 shows a portable communication terminal employing a key part according to the present invention. The new both hand thumb letter board and the letter inputting method are interface-techniques allowing emotional information delivery between a human and a machine under consideration of a characteristic of the human in a view of cognitive science.

[238] Under Internet environment, a source technique for inputting letters in an easy, rapid, and convenient manner is provided to a letter inputting method required in an information device, in which portability is regarded as important factor.

[239] <Letter arrangement principle>

[240] In order to input numerical letters into a portable terminal, as shown in FIG. 37, numerical letters (1,2,3,4,5, 6,7, 8,9, and 0) are allocated to ten keys formed on a 3 x 4 matrix board one by one, and remaining two control characters (*and #) together with the numeral letters are allocated. They are allocated to keys, to which letters are allocated, in parallel, A number 1 key is an optional key so that a letter can be allocated to the key or not.

[241] FIGs. 38 and 39 show English alphabet letter arrangements of two types and control keys.

[242] Except for keys having English letters allocated thereto, remaining keys for control letters are used as a [Space] functional key used for moving one letter back and a [Del] functional key used for deleting previously inputted letter, respectively.

[243] In a case of allocation of Korean letters, consonants are allocated to left side keys in such a manner that they are arranged according to orders between five Hun- nin-jeong-eum elements

-^) in consideration of creative spirit of Hun-nin-jeoung-eum. As shown in FIG. 40, classified consonant groups, such as ( π , =1 ),(τ-, τ= , Έ , Ξ ),(U , H , JX),( A, τ^; ,^),and( O , -S^"), are allocated to keys, respectively, and complete letters are sequentially allocated to five keys. As a result, it is possible allow a user as well as a leaner to easily and rapidly input letters.

[244] As shown in FIG. 40, vowels are allocated to right side keys. Vowel groups

( V , Y ),( -| , ^ ), (-L₅-LL)₅(X₅TT), and ( 1 , — ), which are classified based on Yin-yang concept in consideration of creative spirit of Hun-nin-jeoung-eum. The vowel groups are allocated to keys according to orders between the keys based on strength of yin- yang energy of each key. As a result, accessibility of the letter board and effectiveness in learning how to use the keys can be improved. A key having a vowel ( 1 ) allocated thereon is set as a basic key because it is used more frequently than a key having a vowel ( — ) allocated thereon.

[245] In a case of allocation of Japanese letters, Hira-kana letters and Kata-kana letters are arranged in such a manner that each letter is allocated to each key. The user selects a letter board by pressing a [/Wt>] key, which is a selection key for selecting a Hira- kana letter board or a Kata-kana letter board.

[246] In a case of Japanese Hira-kana letters, as shown in FIG. 41, tenth column letters are sequentially allocated to numeral letter keys one by one in such a manner that each Japanese letter is positioned together with each numeral letter.

[247] In order to select a fifth row letter respective to each column, the user presses a key of a corresponding column, and the user controls a time point, at which the pressed key is released, while recognizing the number of times of outputting through an outputting device for notifying key-pressing maintaining time to the user, thereby inputting the fifth row letter of each column.

[248] For example, in order to input Japanese letters, the user selects a Hira-kana letter board by pressing the [/Wt>] key and presses a [fr] key among tenth column letter keys. When the user releases the pressed key after LED light has been turned on/off three times, a third row letter [ 9 ] of the [#*] column is inputted.

[249] In order to convert an inputted Japanese letter to a Chinese letter, when the user positions a cursor at the inputted Japanese letter and presses a [Hl^] functional key, relating Chinese letters having each allocated numeral are displayed on a screen of an LCD displaying apparatus. Then, the user presses a numerical key corresponding to a numeral allocated to a Chinese letter to be selected. As a result, the Japanese letter is changed into the final Chinese letter and the final Chinese letter is inputted.

[250] In order to input Kata-kana Japanese letters, the user performs the same method for inputting Hira-kana Japanese letters. The user selects a Kata-kana letter board by using the [/Wt>] selection key and performs the same letter inputting method.

[251] FIGs. 42 to 45 show embodiments of key arrangement, in which Han-geul letters and English letters are arranged. English letters are allocated according to an alphabet order.

[252] In a case of English letters, since the user is familiar with arrangement of a computer keyboard, which is called a "qwerty" keyboard, it is preferred that each key part according to the first and second embodiments is conceptually divided into a left part and a right part, and English letters are arranged similarly to arrangement of the "qwerty" keyboard. FIGs. 46 and 48 show embodiments of English letter arrangement. This English letter arrangement is advantageous to allow the user to conveniently use the keyboard having the arrangement and to be easily familiar with the arrangement in comparison with a conventional arrangement according to alphabet order.

Claims

Claims

[1] A keypad assembly, which allows a user to select various types of characters including letters, numerals, and specific characters, the keypad assembly comprising: a key part having a plurality of keys; and a key input recognition module, wherein the key input recognition module determines a character selected from a plurality of characters allocated to a corresponding key according to a number of times (input recognition times) recognized as key-input times, automatically recognizes the number of times recognized as key-input times based on time maintained after the key has been pressed once, and determines that key selection has been completed when the pressed key is released, and wherein input recognition times of each character, which are required for selecting a character, can be previously and optionally set by the user so that although the user selects any one of characters allocated to a key, the user completely selects the character in such a manner that he/she presses the key only once and controls maintaining time of the pressed key.

[2] A keypad assembly, which allows a user to select various types of characters including letters, numerals, and specific characters, the keypad assembly comprising: a key part having a plurality of keys; and a key input recognition module, wherein the key part has a plurality of keys allocated in such a manner that a plurality of characters are arranged on each key, and the types of the characters are not overlapping each other, and characters of a same type have a same number of times of input recognition, wherein the key input recognition module determines a character selected from the characters allocated to a corresponding key according to a number of times recognized as key-input times, automatically recognizes the number of time recognized as key-input times based on time maintained after the key has been pressed once, and determines that key selection has been completed when the pressed key is released, and wherein input recognition times of each character can be previously and optionally set by the user so that although the user selects any one of characters allocated to a key, the user completely selects the character in such a manner that he/she presses the key only once and controls maintaining time of the pressed key.

[3] A keypad assembly, which allows a user to select various types of characters including letters, numerals, and specific characters, the keypad assembly comprising: a key part having a plurality of keys; and a key input recognition module, wherein the key part has at least 26 keys, a plurality of characters are allocated to each key, and in inputting English letters, each English letter is allocated to each key, wherein the key input recognition module recognizes a selected character of a corresponding key according to a number of times recognized as key-input times, automatically recognizes the number of times recognized as key-input times based on time maintained after a key has been pressed once, and determines that key selection has been completed when the pressed key is released, and wherein input recognition times of each character can be previously and optionally set by the user so that although the user selects any one of characters allocated to a key, the user completely selects the character in such a manner that he/she presses the key only once and controls maintaining time of the pressed key.

[4] The keypad assembly as claimed in claim 3, wherein the key part has twelve basic keys arranged in a 3 X 4 arrangement and fourteen extension keys additionally arranged at outer parts of the basic keys, the extension fourteen keys are overlapped with outermost parts of the basic keys so as to save space of the key part, and each overlapped part is positioned between the keys or at one surface of key part.

[5] A keypad assembly, which allows a user to select various types of characters including letters, numerals, and specific characters, the keypad assembly comprising: a key part having a plurality of keys; and a key input recognition module, wherein the key part comprises 28 keys, which are as many as knuckles of both hands of a human and in an arrangement equal to arrangement of knuckles, wherein the key input recognition module recognizes a selected character of a corresponding key according to a number of times recognized as key-input times, automatically recognizes the number of times recognized as key-input times based on time maintained after a key has been pressed once, and determines that key selection has been completed when the pressed key is released, and wherein input recognition times of each character can be previously and optionally set by the user so that although the user selects any one of characters allocated to a key, the user completely selects the character in such a manner that he/she presses the key only once and controls maintaining time of the pressed key.

[6] The keypad assembly as claimed in one of claims 1 to 5, wherein, in allocating

Korean letters to the key part, Han-geul consonants are classified into (π ,=i , Ξ ), (T- ,T= ,^ ), (U ₅ H ₅Ii)₅ (A₅X ₅^;), and ( O ,i5^") according to five element

is a Hum-nin-jeong-eum origination principle, so that consonants in a same type are positioned adjacent to each other or are allocated to a same key, and Han-geul vowels are classified into ( V , ]= ), ( -] , =| ), (-L,-LL), (X, TT), and ( ] , — ) according to volume of yin-yang energy so that vowels in a same type are positioned adjacent to each other or are allocated to a same key.

[7] The keypad assembly as claimed in one of claims 1 to 5, wherein Japanese letters are allocated to the key part in such a manner that tenth column-first row letters are sequentially allocated to numerical keys one by one, five row letters of each column, which follow the first row letter of each column, are allocated to each numerical key in parallel, and Hira kana letters and Kata-kana letters are allocated to a same key.

[8] The keypad assembly as claimed in one of claims 1 to 5, wherein, in a case where English letters are allocated to the key part, a key part is conceptually divided into a left part and a right part based on a "qwerty" arrangement, which is a keyboard arrangement.

[9] The keypad assembly as claimed in one of claims 1 to 5, wherein the input recognition module detects key pressing time and notifies the user to a number of times of input by performing a method using eyesight, tactual sense, or auditory sense whenever the key pressing time is recognized as input.