KR20040036972A - Digital information processing system having character input apparatus - Google Patents

Abstract

PURPOSE: A digital information processing system having a character input unit is provided to allow a user to easily remember letters allocated to each key by allocating consonants in similar forms to one consonant key and vowels in similar forms to one vowel key. CONSTITUTION: A mobile phone(100) includes an LCD panel(110) and a key pad(120). The key pad(120) includes numeric keys corresponding from 1 to 0 and '*' key and '#' key. The numeric keys, '*' key and '#' key are allocated consonants and vowels for inputting Hangul. A group of consonants are allocated to keys 1, 4, 5, 7, 8 0 and '*', and a group of consonants are allocated to keys corresponding to 2, 3, 6, 9 and '#'. Consonants and vowels that have such a similar form that users can easily associate with each other are allocated to one consonant group and vowel group. If a user remembers a position of a representative consonant, the user can easily find positions of glottalized sounds and aspired sounds. One vowel can be inputted by pressing a key one time, and if the user remembers a position of a representative vowel, the user can easily input the other remaining vowels in the similar forms.

Description

Digital information processing system with a character input device {DIGITAL INFORMATION PROCESSING SYSTEM HAVING CHARACTER INPUT APPARATUS}

The present invention relates to a system for processing digital information according to character information input from the outside, and more particularly, to a digital information processing system having a device for inputting characters such as Korean and alphabet.

In general, Hangul, which is based on the Unification of Korean Spelling, consists of 19 consonants, 21 neutrals, and 28 consonants. The theoretical number of letters that can be formed by combining the consonants, neutrals, and species is 11,172 (i.e., 19 x 21 x 28) pieces. However, the actual number of characters commonly used is about 2,500, and in the case of a commonly used completed code or combined code, 1,800 to 1,900 Korean characters can be expressed.

A computer system, which is a representative digital information processing system, has a keyboard as an input device. The keyboard of a computer system has 101 or more keys, and the consonants' ㄱ ',' ㄴ ',' ㄷ ',' ㄹ ',' ㅁ ',' ㅂ ',' ㅅ ',' ㅇ, ㅈ, ㅊ, ㅋ, ㅌ, ㅍ, ㅎ, ㄲ, ㄸ, ㅃ, ㅆ and ㅉ and the vowel ㅏ ',' ㅑ ',' ㅓ ',' ㅕ ',' ㅗ ',' ㅛ ',' TT ',' ㅠ ',' ㅡ '' ㅣ ',' ㅐ ',' ㅒ ',' ㅔ 'and' ㅖ 'has assigned keys, respectively. Since portable digital information processing systems such as portable telephones and personal digital assistants (PDAs) have about 15 keys, it is difficult to assign vowels and consonants to one key for Korean input.

Recently, with the spread of mobile communication terminals, mobile communication terminals have been used as means for electronic notebooks, text message transmission, and wireless Internet. Therefore, methods for easily and quickly entering Korean characters using limited keys have been proposed.

FIG. 1 is a diagram illustrating a `` Cheonjiin '' type keypad provided in a conventional mobile communication terminal. The 'Cheonjiin' keypad is disclosed in Korean Patent Publication No. 2000-41317 filed by Samsung Electronics. Referring to FIG. 1, the keypad 10 includes ten numeric keys corresponding to the numbers 1 to 0 and keys corresponding to * and #, respectively. For convenience of description, the keys provided in the keypad 10 are named according to the assigned numbers. That is, the key assigned to the number 1 promises to be called the number 1 key. Each numeric key is assigned consonants and vowels for Hangul input. For example, key 1, 'ㅡ', key 2, '·', key 3, 'ㅣ', key 4, 'ㄱ' and 'ㅋ', key 5 and 'B' and 'ㄹ', Key 6, 'ㄷ' and 'ㅌ', Key 7, 'ㅂ' and 'ㄷ', Key 8, 'ㅅ' and 'ㅎ', Key 9 and 'ㅈ' and 'ㅊ', Key 0 The keys are assigned 'ㅇ' and 'ㅁ' respectively.

Input of consonants is possible by pressing one key briefly in front of the two consonants assigned to each key, and the next consonant by pressing the corresponding key twice in succession (ie two clicks) It is possible by).

The vowel input is a combination of the 1st, 2nd and 3rd key. For example, if you press the 'ㅣ' of the 3rd key and the '·' of the 2nd key consecutively, the vowel 'ㅏ' is entered. Press key 3 and key 2 twice to input vowel 'ㅑ'.

This Korean input method has a merit of inputting a vowel using three keys, so that the input method is simple and easy to remember. However, there is a hassle of pressing keys several times in order to enter a vowel. In particular, in the case of vowels such as 'ㅙ', 'ㅖ', '4', the user must press the key four or five times to enter one vowel. For example, 'what' must press 8 in the sequence of number keys 0, 0, 3, 2, 2, 1, 5, 5, and 'look' for number keys 7, 2, 3, 1, 3. Press five times in order, and 'why' should press six times in order of number keys 0, 2, 3, 1, 2, 1. That is, there is a disadvantage in that the number of key presses for inputting one letter is many.

2 is a diagram illustrating a keypad of a naragle 2000 system provided in a conventional mobile communication terminal by way of example. The keypad of the Naragle 2000 system is disclosed in Korean Patent Laid-Open No. 2000-51568 filed by LG Electronics. Referring to FIG. 2, the keypad 20 includes ten numeric keys corresponding to the numbers 1 to 0 and keys corresponding to * and #, respectively. Each numeric key is assigned consonants and vowels for Hangul input. For example, the first key is 'ㄱ', the second key is 'B', the fourth key is 'ㄹ', the fifth key is 'ㅁ', the seventh key is 'ㅅ', the eighth key is 'ㅇ', 'ㅏ', 'ㅓ' on key 3, 'ㅗ', 'TT' on key 6, 'ㅣ' on key 9, 'ㅡ' on key 0, 'ㅡ' on key 0, * overwrite on the # key The horn conversion function is assigned to each. Consonants and vowels not assigned to numeric keys can be entered using the * and # keys. For example, the consonant 'ㅋ' is entered by pressing the * key after entering 'ㄱ' using the 1 key, and 'ㄲ' is entered by pressing the # key after entering 'ㄱ' using the 1 key. Is entered. For vowel 'ㅑ', enter '키' using the 3 key and press the * key. For 'vowel', enter the 'ㅏ' using the 3 key and press the * key. Press 'ㅣ' using.

However, this Hangul input method is to input consonants that are not written on the keys such as 'ㄷ', 'ㅂ', 'ㅈ', 'ㅊ', 'ㅋ', 'ㅌ', 'ㅊ', and 'ㅎ'. In order to know the consonants associated with such consonants in advance, you should press more than three consonants, such as 'ㄷ', 'ㅊ', 'ㅎ', 'ㅃ', 'ㅉ', 'ㄸ' The disadvantage is that you can type. For example, 'ja' should press 4 in the order of 7, *, #, 3, and 'red bean' should press 7 in the order of 5, *, *, 3, 2, *, *.

3 is a view showing a keypad disclosed in Korean Patent Publication No. 2002-9780 as another example of the prior art. Referring to FIG. 3, one or two consonants and one vowel are assigned to each of the numeric keys corresponding to the keypad numbers 1 to 0, respectively. A key 31 for erasing is separately assigned, and a floating function is assigned to #.

The Hangul input method using the keys arranged as above is as follows. First, when each key is pressed in the initial input state, one of the consonants assigned to each key is input. That is, among two consonants assigned to each key, the consonant described above the key can be input by one click, and the consonant described below the key can be inputted by the double click. Like the seventh key, one consonant is assigned a consonant assigned to the key regardless of the click type. On the other hand, when each key is pressed in the neutral input state, a vowel assigned to each key is input at this time. Then, if you double-click a key assigned with the vowels 'ㅏ', 'ㅓ', 'ㅗ', 'TT', 'ㅔ' and '중', the vowel 'ㅑ', 'ㅕ', 'ㅛ', 'ㅠ' , 'ㅒ' and "ㅖ" are input respectively.

However, since the keypad 30 has consonants and vowels mixed in one key, the consonants input after the vowels must distinguish whether the syllable is the final syllable or the first syllable of the next syllable. Therefore, when entering the finality, the corresponding key must be pressed for a predetermined time (for example, 0.3 to 0.5 seconds) or a second click must be made long when double-clicking. Or press the release key (ie # key) to end the syllable and return to initial entry. As such, at the end of a syllable, there is the hassle of having to press a key in a promised way. Moreover, the keypad 30 is also inconsistent with the arrangement of consonants and vowels, which makes it difficult for the user to learn the key arrangement.

Accordingly, an object of the present invention is to provide a digital information processing system that can minimize the number of key presses.

Another object of the present invention is to provide a digital information processing system having a key arrangement in which a user can visually easily determine the positions of consonant keys and vowel keys, and which is convenient to store.

It is another object of the present invention to provide a digital information processing system that does not need to input the distinction and the finality of consonants.

1 exemplarily illustrates a keypad of a 'Cheon-in' method provided in a conventional mobile communication terminal;

2 is a diagram illustrating a keypad of a Naragle 2000 system provided in a conventional mobile communication terminal by way of example;

3 is a view showing a keypad disclosed in Korean Patent Publication No. 2002-9780 as another example of the prior art;

4 is an appearance of a portable telephone according to a preferred embodiment of the present invention;

5 is a block diagram showing an internal circuit configuration of the portable telephone shown in FIG. 4;

6a to 6e show how to distinguish between short clicks, double clicks, long clicks, double clicks + long clicks and long clicks + double clicks depending on the type of key press;

7 is a diagram showing a control procedure of a processor according to a key click; And

FIG. 8 is a diagram illustrating an example of a specific control procedure of the determining step illustrated in FIG. 7.

* Description of the main parts of the drawing

100: mobile phone 110: LCD panel

120: keypad 130: processor

140: memory

(Configuration)

According to a feature of the present invention for achieving the above object, an apparatus for processing digital information according to externally input character information includes: consonant keys corresponding to consonant groups and vowel keys corresponding to vowel groups A consonant belonging to a consonant group associated with a pressed key by distinguishing keypress states of each of the consonant keys, and inputting a vowel belonging to a vowel group associated with the pressed key by distinguishing keypress states of each of the vowel keys Receive.

The digital information processing apparatus may further include a storage device configured to store Korean codes of consonants belonging to the consonant groups and Korean codes of vowel groups belonging to the vowel groups.

In a preferred embodiment, the digital information processing device further includes a display device for displaying the input consonant and the input vowel.

In an exemplary embodiment, the digital information processing apparatus may receive a consonant belonging to a consonant group associated with a key pressed by distinguishing key press states of each of the consonant keys, and distinguishing the key press states of each of the vowel keys. The controller further includes a controller for receiving a vowel belonging to a vowel group related to the binary key.

In these embodiments, the controller reads out a Hangul code associated with a pressed key from the memory by distinguishing keypress states of each of the consonant keys from the memory, and displays a Hangul corresponding to the read Hangul code on the display device. do.

In a preferred embodiment, the keypress states include clicks, double clicks, and long clicks.

In a preferred embodiment, the consonant group includes a normal consonant, a hard sound and a vowel.

The digital information control device having such a configuration holds a device such as a mobile phone in two hands by assigning a consonant group or a vowel group to one key, and using two thumbs, the left hand can input the vowel with the left hand and the consonant. You can type Hangul as if you typed it. In addition, the consonants and vowels other than the six vowels are inputted only by clicking, double-clicking, and long-clicking. Therefore, the Hangul input speed is improved. Moreover, the present invention allows the user to easily remember the phonemes assigned to each key by assigning similar types of consonants to one consonant key and assigning similar types of vowels to one vowel key, even though the user can assign a key arrangement. Even if you do not remember the position of the key can be intuitively determined. In addition, since the present invention does not have to input the consonants and the finality of the consonants, the convenience of key input of the user is increased.

(Example)

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 shows the appearance of a portable telephone according to a preferred embodiment of the present invention. Referring to FIG. 4, the portable telephone 100 includes an LCD panel 110 and a keypad 120. The keypad 120 includes numeric keys, * keys, and # keys corresponding to the numbers 1 to 0, respectively. In addition, the numeric keys, * key and # key are assigned consonants and vowels for Hangul input, respectively. In particular, a group of consonants is assigned to the keys corresponding to the numbers 1, 4, 5, 7, 8, 0, and *, and a group of consonants are assigned to the keys corresponding to the numbers 2, 3, 6, 9, and #, respectively. do. In the following description, a group of consonants assigned to each key is called a consonant group, and a group of vowels assigned to each key is called a vowel group. As will be described in detail later, consonants and vowels that are similar in shape and can be easily associated with are assigned to one consonant and vowel groups. For example, keys 1, 5, 7, 7, 8, and * keys are assigned to the consonant group, similar to the common consonant, hom, and consonant, respectively. Is assigned. Therefore, if only the location of the representative consonants is remembered, the similar types of horns and horns can be easily found. On the other hand, in the case of vowels, vowels (eg 'ㅏ') / [j] pronunciation followed by vowels (eg 'ㅑ') / vowels with 'ㅣ' added to the back of each vowel (eg , 'ㅐ') is assigned to one vowel group. Therefore, one vowel can be input by one key press, and as in the case of consonants, it is easy to input the remaining vowels of a similar form only by remembering the position of the representative vowel assigned to each key.

5 is a block diagram showing an internal circuit configuration of the portable telephone 100 shown in FIG. Referring to FIG. 5, the portable telephone 100 includes an LCD panel 110, a keypad 120, a processor 130, and a memory 140. The keypad 120 transmits a scan code corresponding to the pressed key to the processor 130. When the scan code is input from the keypad 120, the processor 130 determines the type of the pressed key and the type of key press from the input scan code, and the combined Hangul code corresponding to the determined key type and key press form. Occurs. The processor 130 generates a complete code corresponding to the combination of the previously generated combined Hangul code and the currently generated Hangul code by referring to the memory 140 and displays the Hangul corresponding to the generated complete code. Display on 110. For example, if the scan codes corresponding to 'b' and 'ㅏ' are sequentially input from the keypad 120, the processor 130 determines that 'I' is entered instead of 'b' and the LCD panel 110 is determined. Displays 'me' on the screen.

Referring to FIG. 4 again, a configuration of a keypad and an input method thereof according to a preferred embodiment of the present invention will be described. Table 1 shows the consonants and vowels assigned to each numeric key and how to enter the consonants and vowels assigned to each key.

As can be seen in Figure 4 and Table 1, each key of the keypad 120 is assigned two or three consonants (consonants) or vowels (collections), respectively, the user is assigned to the same key consonants Or, to enter one of the vowel groups, you must press the key in one of two ways: click, double click, or long click.

For example, in order to enter 'sage', the key 0 long click, the key 6 double click, the key 4 click, the * key click and the key 3 are clicked. However, clicks except double clicks and long clicks indicate short clicks.

Meanwhile, the double vowels 'ㅘ', 'ㅙ', ',', ',', ',' and 'ㅖ' may be input by a combination of two vowel keys. The key pressing sequence for inputting the six double vowels is summarized in Table 2.

As described above, a method of distinguishing between short clicks, double clicks, and long clicks according to the type of key press is illustrated in FIGS. 6A to 6C.

First, Figure 6A shows a short click by way of example. The processor 130 recognizes as a short click when a key is pressed at any time and there is no key press for a preset time T1. As illustrated in FIG. 6B, when the same key is pressed twice in succession within the preset time T1, the processor 130 recognizes this as a double click. On the other hand, as shown in FIG. 6C, when the state in which the key is pressed lasts longer than the preset time T2, the processor 130 recognizes this as a long click. The control procedure of the processor 130 according to the key click is shown in FIG. 7.

In operation S200, when any one of the keys provided in the keypad 120 is pressed by the user, the keypad 120 transmits a scan code corresponding to the pressed key to the processor 130. However, the scan code corresponding to the pressed key is continuously transmitted to the processor 130 for the time when the key is pressed. For example, when the first key is pressed for a predetermined time t, the scan code corresponding to the first key is transmitted to the processor 130 for a predetermined time t.

In operation S210, the processor 130 determines the type of key pressed and the type of key pressing from the scan code input from the keypad 120. If it is determined that the key press form is a short click, then the control proceeds to step S220 to generate a first combined code corresponding to the pressed key. For example, when a scan code corresponding to the first key is input, the processor 130 may include a first combined code corresponding to 'b', a second combined code corresponding to 'ㄲ', and a third combined code corresponding to 'ㅋ'. Will either occur. If the user presses the first key briefly, it is determined that 'a' is input and a first combinational code corresponding to 'a' is generated.

If the determination result of step S210 indicates that the key press form is a double click, the control proceeds to step S230 to generate a second combined code corresponding to the pressed key. For example, if the user double-clicks the first key, it is determined that 'ㄲ' is input and a second combined code corresponding to 'ㄲ' is generated.

If the determination result of step S210 indicates that the key press form is a long click, the control proceeds to step S240 to generate a third combined code corresponding to the pressed key. For example, if the user presses the first key for a long time, it is determined that 'ㅋ' has been input, and a third combination code corresponding to 'ㅋ' is generated.

In step S250, the processor 130 converts the generated combined code into a corresponding complete code. The completed code that is converted at this time varies depending on whether the currently input element is one of initial, neutral, and final. For example, if the current input 'ㄱ' is a consonant, a complete code corresponding to 'ㄱ' is generated, but the current input 'ㄱ' is a finality, and previously 'ㄱ' and 'ㅏ' are sequentially entered, If 'ga' is formed, an on-molding code corresponding to 'angle' is generated. The combined Hangul codes and the complete Hangul codes described above are both stored in the memory 140.

In operation S260, the processor 130 displays the Hangul corresponding to the generated complete Hangul code on the LCD panel 110.

The following describes a method of inputting an English alphabet according to a preferred embodiment of the present invention. Referring back to FIG. 4, two or three English alphabets are assigned to keys 1 to 9 of the keypad 120, respectively. The alphabets assigned to each key can be entered by clicking, double-clicking or long-clicking the same as the Hangul input. Table 3 shows how to enter the alphabet assigned to each key.

Japanese input method according to the present invention is as follows. Hiragana is assigned to the keypad 120 of FIG. 4 as shown in Table 4, respectively. For example, key 1 is assigned 'あ', 'い', 'う', 'え', and 'お', and one of five hiragana letters assigned to key 1 according to the key press type of key 1. Is input. In order to input Japanese hiragana, up to five hiragana are assigned to one key, and thus, two key presses are required, unlike the Korean and English alphabet input methods described above.

6D and 6E show different forms of key presses. 6D shows 'double click + long click'. That is, as shown in FIG. 6B, the same key is pressed twice within the preset time T1, but the second key is pressed longer than the preset time T2 to input 'double click + long click'. In this embodiment 'double click + long click' is a key press to select the fourth element among the elements assigned to the key. For example, in a Japanese input, when a user "double clicks + long clicks" the first key, "え" is input to the processor 130.

6e shows 'long click + double click'. Referring to FIG. 6E, when the key is pressed longer than the preset time T2 and the same key is pressed again within the preset time T1, 'long click + double click' is input. In this embodiment, 'long click + double click' is a key press to select the fifth element among the elements assigned to the key. For example, in a Japanese input, when a user presses the 1 key 'long click + double click', 'お' is input. At this time, unlike when using the above three key presses, different key presses must not occur during the preset time T1 after the long click to distinguish between the long click and the 'long click + double click'. .

FIG. 8 illustrates a detailed control procedure for determining a key press form in the determination step S210 of FIG. 7 when five phonemes are assigned to one key. Referring to FIG. 8, in step S211, the processor 130 determines whether the scan code input time is longer than the preset time T2. In the foregoing description, it has been described that the scan code corresponding to the pressed key is transmitted to the processor 130 continuously for the time the key is pressed. As a result of the determination, if the scan code input time is longer than the preset time T2, the control proceeds to step S212.

In step S212, the processor 130 determines whether the same scan code is input again in T1. If the same scan code is input again in T1, the control proceeds to step S213 to determine that the currently input key press form is 'long click + double click'. If the same scan code is not entered in T1, the control proceeds to step S212 to determine that the currently input key press form is 'long click'.

As a result of the determination in step S211, if the scan code input time is not longer than the preset time T2, the control proceeds to step S215. In step S215, the processor 130 determines whether the same scan code is input again in T1. If the same scan code is input again in T1, the control proceeds to step S216.

In step S216, the processor 130 determines whether the scan code input time is longer than the preset time T2. As a result of the determination, if the scan code input time is longer than the preset time T2, the control proceeds to step S217 to determine that the currently input key press form is 'double click + long click'. If the scan code input time is not longer than the preset time T2, the control proceeds to step S218 to determine that the currently input key press form is 'double click'.

If the same scan code is not input into T1 as a result of the determination in step S215, the control proceeds to step S219 to determine that the currently input key press form is 'click'.

The key press form determination process is automatically performed by the processor 130. When the determination process is completed, the control proceeds to one of steps S220 to S240 shown in FIG. 7. On the other hand, although not shown in Figure 7, if five phonemes are assigned to one key, such as Japanese hiragana, it is natural that more processes for generating the fourth code and the fifth code corresponding to the pressed key are necessary. Modifications to the embodiments related thereto are not difficult for those skilled in the art, and thus detailed descriptions thereof will be omitted.

As described above, the key arrangement for character input of the present invention has significantly reduced the number of key presses compared to the conventional technologies. In particular, when a double click is viewed as a single key input, according to the present invention, all consonants can be input by one key press. In addition, in the case of double vowels, as shown in Table 5, the number of key presses is significantly smaller than in the prior art.

As a specific example, the process of inputting the text 'mobile phone' is shown in Table 6 when comparing the present invention with the prior art.

As can be seen in the example of Table 6, the key input method of the present invention has fewer key presses than the prior arts. In particular, according to the cheonjiin input method, since the vowel must be input only with 'ㅣ', '·', and 'ㅡ', the number of key presses is large in the case of a double vowel. In addition, according to the Naragle 2000 input method, in order to input a hard sound or a sound sound, the function key must be pressed once more in parallel with the overwrite function key.

On the other hand, Korean Patent Laid-Open Publication No. 2000-9780 assigns a consonant and a vowel to one key, so that the first click or double click is determined to be a consonant, and the next click or double click is determined as a vowel. However, there was no way to determine whether the consonant inputted after the vowel was the last or first letter of the next letter. For example, if you want to enter 'pretty', press the seventh key ('ㅇ'), double-click the seventh key ('ㅖ'), double-click the fiveth key ('ㅃ'), long-click the fiveth key (' ㅡ '), 9 key clicks (' ㄷ ') and 6 key long clicks (' ㅏ '). Thus, the vowels at the end of each syllable should be long clicked instead of double clicked, and long clicked instead of clicked. That is, Korean Laid-Open Publication No. 2000-9780 requires user to click, long click, double click, and long double click depending on whether the syllable is to be terminated. However, according to the present invention, since consonants and vowels are assigned to different keys, such confusion does not occur at all.

To input 'red' as the input method, you should input 'red' and then press the function key (direction key) to move the cursor to the next position and then enter 'crab'. If you type 'red' and press 'crab' consecutively without pressing the function key (direction key), 'a' is recognized as being pressed twice, and 'bulke' is entered. On the other hand, in the present invention, the consonant to be input is determined the moment the key is pressed in one of a click, double click, or long click manner. Thus, the inputted finality is not affected by the initiality of subsequent letters.

While the invention has been described using exemplary preferred embodiments, it will be understood that the scope of the invention is not limited to the disclosed embodiments. Rather, the scope of the present invention is intended to include all of the various modifications and similar configurations. Accordingly, the claims should be construed as broadly as possible to cover all such modifications and similar constructions.

According to the present invention, by assigning a consonant group or a vowel group to one key, a device such as a mobile phone is held in two hands, and the left hand can be consonant using two thumbs, and the right hand can enter a vowel. You can type Hangul like that. In addition, the consonants and vowels other than the six vowels are inputted only by clicking, double-clicking, and long-clicking. Therefore, the Hangul input speed is improved.

Moreover, the present invention allows the user to easily remember the phonemes assigned to each key by assigning similar types of consonants to one consonant key and assigning similar types of vowels to one vowel key, even though the user can assign a key arrangement. Even if you do not remember the position of the key can be intuitively determined.

In addition, since the present invention does not have to input the consonants and the finality of the consonants, the convenience of key input of the user is increased.

Claims (10)

In a device for processing digital information in accordance with externally input character information: Consonant keys corresponding to consonant groups; And Includes vowel keys corresponding to vowel groups; Receiving consonants belonging to a consonant group associated with a key pressed by distinguishing keypress states of each of the consonant keys, and receiving a vowel belonging to a vowel group associated with a pressed key by distinguishing keypress states of each of the vowel keys Digital information processing device. The method of claim 1, And a storage device for storing Hangul codes of consonants belonging to the consonant groups and Hangul codes of vowel groups belonging to the vowel groups. The method of claim 1, And a display device for displaying the input consonant and the input vowel. The method of claim 1, A controller for receiving consonants belonging to a consonant group associated with a pressed key by distinguishing keypress states of each of the consonant keys, and receiving a vowel belonging to a vowel group associated with a pressed key by distinguishing keypress states of each of the vowel keys Digital information processing apparatus further comprising. The method according to any one of claims 2 to 4, The controller, And reading out a Hangul code associated with a pressed key by distinguishing keypress states of each of the consonant keys from the memory, and displaying a Hangul corresponding to the read Hangul code on the display device. The method of claim 1, And said keypress states comprise a click, a double click and a long click. The method of claim 6, And said keypress states further comprise long click + double click and double click + long click. The method of claim 1, The consonant groups of the digital information processing apparatus comprising a normal consonant, a hard sound and a sound. The method of claim 1, And each English alphabet letter is assigned to each of the consonant keys and the vowel keys. The method of claim 1, And each of the consonant keys and the vowel keys is assigned a Kana character in Japanese.