KR20090083494A - Alphabet input methods for the mini-keypads of electronic devices - Google Patents

Abstract

The present invention relates to a character input processing method for a small (4x3 key or 2x6 key or less) electronic device such as a position tracker (GPS) or a mobile phone, and sets a center point (+) at the center of the input keyboard (usually key 5). The basic function is to give the calling function of the vowel, and to display the vowel as the consonant and the vowel combination of the center point and the vowel key by placing the consonant and the basic vowel in consonants and parallel to the surrounding keys. It also provides various character input processing methods that can effectively represent basic characters including English characters even in reduced keyboards by rearrangement of letters, letters and code characters, expansion of center stroke additional functions, and virtual folder type letters management.

Description

Alpha input methods for the mini-keypads of electronic devices}

This paper provides a method for effectively inputting basic characters of multi-national characters such as English characters through proper rearrangement of input characters, expansion of key functions, and improved keyboard operation in keyboards for small electronic devices such as mobile phones and location trackers (GPS).

The typical keyboard system currently used is English alphabet, and 26 alphabets are grouped into 2 to 4 groups in order and placed in 9 or 10 keys in order to make it difficult to grasp the material of the letters, and it takes a lot of time to master. In addition, the number of hits is allocated to high frequency letters, which reduces work efficiency. The need for simpler and more convenient small keyboards is recognized, but at present it does not meet many of the many demands on them.

In the present invention, through the combination of various electronic signals in the keys of the small keyboard and between the keys, the basic type sets the center key (point) for vowel call, consonant arrangement for the center key peripheral keys, and sequential ordering according to a predetermined order. This is done through consonant notation, overlapping of consonants and vowels. In addition, it is an effective alternative to the basic type, and provides various reduced keyboards, which are implemented through proper letter repositioning, expansion of the center point function, folding letter management, and readjustment of the operation process for keyboards of 4x3 or 2x6 keys or less.

This proposal improves the speed and convenience of character input in basic and reduced forms. Such advantages are realized by arranging consonants and vowels in parallel, prioritizing consonants with high frequency of use, centralized placement of vowels centered on the central key (point), and processing within two strokes. In particular, the reduced type uses the base letter as a virtual folder and allocates the subsequent letter to each of them.

This proposal minimizes atmospheric disturbances between input characters, effectively allowing continuous input, saving typing, and efficiently processing input even in compressed keyboards to meet the needs of small keyboards in many ways.

As a method adopted in this book, consonants and vowels are arranged in parallel, consonants prioritized with high frequency of use, center key (point) use, centralized placement around center key (point), and processing within 2 strokes. The details related to the basic type and the reduced type keyboard, such as saving the use area of the keyboard by use and simultaneous key function of adjacent keys, will be described below with reference to the accompanying drawings.

1A is a nine-key basic drawing. The basic consonants (QZ, BC C , DF, GHJ, + KL, MN N , PR, STV, WX) are arranged in sequence from key 1 to each, and each of them is sequentially marked in the key. Also, the basic vowels (A, E, I, O, U, Y) are arranged in parallel under the first consonants of keys 2, 3, 4, 6, 8 and 9. Place the center point <+> in front of <KL> of key 5, <start it>, and mark the vowel with each vowel key. Letters arranged in sequence in the same key are assigned to each base time (ie1 / 4 seconds) and displayed in sequential blows, and are also used in all reduced forms. Assuming that the basic time of sequential batting is a sign <&>, and the combination of <PR> of key # 7 is <7 & 7 & = PP, 77 & 77 & = RR, 7 & 77 & = PR>. The end consonants < C > in column 2, <B>, and the end consonants < N > in column 6, <M> are examples for Portuguese and Spanish, respectively. In this way, the third margins of keys 1, 3, 7, and 9 can be assigned and used as necessary language characters or codes. Figure 4 shows the working process of this figure (basic type).

     Contrary to the center point stroke, the vowel call in the basic type 1A and the reduced type 1B may be treated as the center point futa. In this case, it is necessary to construct a system that displays two consonants in a lap and processes the second key to replace the second consonant with a desired vowel. In a comparative example, assuming that <&> is a basic time, <+> is a center point, and a number is a key number, a combination of key 2 <BA> is selected as a center point selection process. <252 = B + B = BA> and the center point futa process indicates <2 & 25 = BB + = BA>. A start is described as <52 = + B = A> and a futa is described as <25 = B + = A>. The futa method has the advantage that it is easy to hit the vowel key first, and then hit the center key, and the disadvantage is that consonants appear first when displaying the vowel. However, this is not a problem for input operations above normal speed. On the other hand, a good starting line is the advantage of a continuous stroke, in order to recall the vowels may be a disadvantage in advance.

     1A and 1B, the central key selection or futa system can be constructed so that three letter lines or two letters can be overlapped and selected on the same key.

     In one key, three elements (BCD) on the top line and three elements (AEI) on the bottom line are arranged in pairs. In addition to the center point, each of the bottom line elements is represented. For example, <C + = E> is represented by a path such as <BB + = C + = E> and <D + = I> is <BBB + = D + = I>. As a selection method, <+ C = E> is represented by <+ BB = E> and <+ D = I> is represented by <+ BBB = I>.

     In this format of basic drawings and other reduced-size drawings, the Roman alphabet notation method of the national languages may be applied, and the base letters may be rearranged according to the characteristics of the corresponding national notation to display the national languages.

     The following describes the Japanese roman display with the basic type 1a. Place <PBF>, <CJZ>, <SX>, <KGQ>, <+>, <TD>, <NM>, <H / NG>, and <RL> on keys 1 to 9 of the keyboard, respectively. Next, under <VW>, <A>, <E>, <I>, <O>, <U>, and <Y> under each consonant group of keys 1, 2, 3, 4, 6, 8, and 9 Redeploy. In this arrangement, the basic consonants are represented by one stroke, and the sound <B>, <J (Z)>, <G>, and <D> are represented by two strokes within each key. It is convenient for text search in connection with double accent marks. <V> and <N> are single strokes, and two batters are used to display <W> and <M>, respectively.

     The keyboard is used in Chinese as a center point futa method. In consideration of the features of Chinese notation, the letter may be rearranged in the form of FIG. 1A. Displaying <NG> with two consecutive keystrokes 8 is an example of a shorthand notation, and a middle vowel may be additionally arranged following the basic vowel of each key according to the plural-row arrangement of the key # 1. In addition to these vowels, they can reflect the basic four stars of Chinese (Eumpyeong, Yangpyeong, Sangsang, and Giant). In other words, in the process of adding consonants (single: consonants, middle consonants) and adding vowels (single vowels, vowels), the most frequently used characters of the vowels (four stars) of the vowels are displayed on the main screen. Subsequent frequency strings are posted in the subwindow, followed by the center strokes, which are displayed on the main screen in the same manner as before, in the order of sound level (1 star), Yangpyeong (2 star), and phase (3 star). The strings of the surnames are posted in the secondary window, and the sequence strings of each surname are automatically inserted into the display string of the main screen at the same time as the selection using the direction marking. In the process of completing the Chinese mica by adding consonants (n, g, r: finality in Korean), a string is displayed to display the constellation of the syllables (four stars) step by step. The addition is done in the same manner as the electricity. The four stars in the miniature keyboard can be marked as enemies using foreign keys.

     The keyboard is also applied to the romanization of Hangul. Since Hangul is a phonetic letter notation, the letters corresponding to Roman letters can be replaced. In the form of FIG. 1A, the Hangul alphabet corresponding to the Roman characters may be rearranged as it is, and Korean characters may be displayed by applying a center point pre-hooter method. Keys 1 to 9, respectively, <<>, <ㅈ <ㅊ>, <ㅅ ㅆㅎ>, <ㄱㄲ ㅋ>, <+>, <ㄷ ㄸ ㅌ>, <ㄴ>, <ㅇㅁ>, <ㄹ> , Where <ㅁ> can be postponed to <b> or <ㄹ>, and the base vowel <각>, <ㅏㅑ>, <ㅓㅕ>, <ㅣ ㅐ>, <ㅗㅛ>, Relocate <ㅡ ㅢ>, <ㅜㅠ> and <ㅝ> respectively. These contiguously arranged letters are represented by sequential blows, and the basic vowel is based on the center point selection system. The middle vowel is indicated by the center point futabu on the base vowel. The two strokes of <ㅣ> and the two strokes of <ㅐ> and <ㅡ> to indicate <ㅢ> are multi-paths.

1B is an eight-key reduced view. The key 1 <QZ> shown in FIG. 1 is divided and <Q> is attached to the key 7 <PR> and the <Z> is assigned to the key 9 <WX>.

Figure 2a is a seven-key reduced vowel split view. Rearrange the center point and base letter, that is, the input elements (PBJ, A, FMX, I, +, O, S) to each of the keys 1, 2, 3, 4, 5, 6 and 8. Call order is (P) RQ, (B) CD C , (J) KL / (A) E, / (F) GH, (M) N N , (X) Z, / (I) Y, / + / (O) UW, / (S) TV. Subsequent dividends of each of these primitives will be assigned to each of the primitives as a virtual folder and sequentially allocated into them. In each figure below, the center point (+) is used as a futa to call a subsequent divider of the basic letter and is used for the same purpose no matter which key is rearranged. The sign of the center point <+> in this usage is to replace the immediately preceding letter with its subsequent letter and mark it at the position of the previous letter. Combining each subsequent dividend collection with the base collection (A, I, O) and the center point (+) shown in this figure, A + = E, I + = Y, O + = U, O + = = W. When these combinations are replaced with vowel key numbers, 22 = AA, 225 = AE, 24 = AI, 26 = AO, 265 = AU, 2655 = AW, 245 = AY, / 252 = EA, 2525 = EE, 254 = EI, 256 = EO, 2565 = EU, 25655 = EW, 2545 = EY, / 42 = IA, 425 = IE, 44 = II, 46 = IO, 465 = IU, 4655 = IW, 445 = IY, / 62 = OA, 625 = OE, 64 = OI, 66 = OO, 665 = OU, 6655 = OW, 645 = OY, / 652 = UA, 6525 = UE, 654 = UI, 656 = UO, 6565 = UU, 65655 = UW , 6545 = UY, / 6552 = WA, 65525 = WE, 6554 = WI, 6556 = WO, 65565 = WU, 655655 = WW, 65545 = WY, / 452 = YA, 4525 = YE, 454 = YI, 456 = YO , 4565 = YU, 45655 = YW, and 4545 = YY. In terms of <AE (225)>, <2 = A, 22 = AA, 225 = 22 + = AA +>, where <+> replaces the previous A with his subsequent dividend collection <E> to replace <A +>. So it is displayed as <AA + = AE>. Subsequent dividend collection order of <O> is <OUW>, so as in the previous period, <OW> is 6655, which is expressed as <6655 = OO ++ = OU + = OW>.

     Hangul in this reduced form is as follows. First, the basic consonants <ㅂㅈㅅ>, <ㄴㄱㄷ>, and <ㅇ> are placed on keys 1, 3, and 8, and the integrated <+> of <ㅣ> and <ㅡ> on key 2 and key 5 on the center point. <c> is marked with vowel combining elements (dots for convenience) on keys 4 and 6, respectively, and these four characters are combined to produce vowels of Korean characters. Korean syllable is composed by using Hangul composition method.

     Consonants (basic consonants in parentheses) appear in the following order: <(ㅂ) ㅃ, (ㅈ) ㅎ ㅉ, (ㅅ) ㅎㅆ>, <(ㄴ) ㄹㅁ, (ㄱ) ㅋ ㄲ, (ㄷ) ㅌ ㄸ> After the basic consonants are displayed, the center point is added by sequential sequential expression. Consonants <ㅇ> are expressed in the same way as basic consonants.

     In the second key, the first stroke represents <ㅣ> and the second stroke represents <ㅡ>. In the following vowel combination, 26 = ㅏ, 266 = ㅑ, 42 = ㅓ, 442 = ㅕ, 62 = ㅗ, 662 = ㅛ, 24 =, 244 = ㅛ, 2 = ㅣ, 22 = ㅡ, 265 = ㅐ, 2665 = ㅒ, 425 = ㅔ, 4425 = ㅖ, 625 = ㅚ, 245 = ㅟ, 25 = (ㅐ), 225 = ㅢ, 626 = ㅘ, 242 = ㅝ, 6265 = ㅙ, 2425 = ㅞ do. If the word <Hangul> is indicated by the key number in the above order, it becomes 111 (M) 5 (ㅎ) / 26 (ㅏ) / 3 (b) / 33 (a) 22 (ㅡ) 35 (ㄹ). The above is the description regarding the 7-key type vowel separation type keyboard operation.

     Hangul 6-key type rearranges consonants <ㅇ> in the 7-key type following <+> of the center point key 5 and processes them in a sequential manner.

2B is a six-key reduced view. Rearrange the input elements (PBJ, AM, SFX, I, +, O) to each of the keys 1, 2, 3, 4, 5 and 6. The calling order is (P) RQ, (B) CD C , (J) KL, / (A) E, (M) N N , / (S) TV, (F) GH, (X) Z, (I ) Y, +, (O) UW.

3A is a 5-key reduced view. Rearrange the input elements (PBJ, AM, SFX, +, O) to each of the keys 1, 2, 3, 5 and 6. Call order is (P) RQ, (B) CD C , (J) KL, / (A) EI, (M) N N , / (S) TV, (F) GH, (X) YZ, / + / (O) UW.

3B is a four-key reduced view. Rearrange the input elements (PBJ, AMO, SFX, +) to keys 1, 2, 3, and 5, respectively. The calling order is (P) RQ, (B) CD C , (J) KL, / (A) EI, (M) N N , (O) UW, / (S) TV, (F) GH, (X ) YZ, / +

     The four keys in this figure can be used as they are, or by adding a secondary key (+) to the key 6 to form five keys (No. 5 and 6) and can be reconfigured to a Display-Touch type system. These two keys are screen and key common. To illustrate the operation, the initial divider is displayed first and the subsequent divider is displayed on the center key and subkeys in the calling order. (a) The center key and subkeys are selected at random, and (b) The letter shown on the key will be displayed in the same place, replacing the basic letter displayed on the main screen when selected, and the center key in the order of subsequent dividend of the notation letter. It is displayed again on the secondary key. (c) continue to display the selected letter on the subscreen in place of the basic letter displayed on the main screen, and (d) simultaneously display the remaining subsequent divider letters on the subscreen keys 5 and 6 in sequence, e) This procedure cycles through <Basic Zamo-Subsequent Dividend Moza-Basal Zamo on Virtual Folders> in the specified order. For example, when <P> is displayed, subsequent dividers <R> and <Q> of P are displayed on the central key key. Press <R> to display <R> on the main screen, <Q> on key 5, and <P> on key 6, and press <Q> to display <Q> on the main screen. <P> is on key 5 and <R> is on key 6. To display <PQ> continuously, display <PP> on the main screen and press <Q> on key 6. If <P-R-Q> is displayed circularly on the center key, the system can be configured with the four keys of FIG. 3B without installing the secondary key. The same process can be applied to general solid keyboards.

3C is a three-key reduced view. Rearrange the input elements (PBJ, + AM, SFOX) to each of the keys 1,2,3. The calling order is (P) RQ, (B) CD C , (J) KL, / + (A) EI, (M) N N , / (S) TV, (F) GH, (O) UW, ( X) YZ.

You can arrange the letter to 3 keys differently. In this case, the input elements PBMJ, + A, and SFOX are rearranged sequentially to the keys 1, 2, and 3, respectively. Call order is (P) RQ, (B) CD C , (M) N N , (J) KL, / + (A) EI, / (S) TV, (F) GH, (O) UW, (X YZ. This diagram has a problem in that the consonants must be displayed as multiple continuous strokes due to two consecutive consonant arrangements. This is solved with a single hit using adjacent key simultaneous hits. Write <M> or <J> for key 1,2 key and <O> or <X> for key 2,3. In this manner, the display objects M, J or O, X can be differently set and the arrangement can be made differently as necessary. <M> or <O> with three strokes is the final arranger for each key, and adjacent keys can be solved with a single shot by applying adjacent key simultaneous hits.

     In this case, the simultaneous hit refers to the necessary character by batting the primary key and the adjacent key within a certain time. The basic time in the bone is 1/4 second, which is different from the basic time in the actual batter, for example, 1/8 second. Typing the primary and adjacent keys separately within 1/8 second is not physically easy, but can be done experimentally with simultaneous strokes. Therefore, the differentiated time for successive strokes between the primary key and the adjacent key can be satisfied if it is set within 1/8 second.

     In the above example, <P> is the first stroke of key 1, the base time allocated to it is <&>, <+> is the first stroke of key 2, <S> is the first stroke of key 3, // is <or>, <J> or <M> if 0 sec = <P & + // + & P <1/8 sec, <X> or if 0 sec = <S & + // + & S <1/8 sec Have the display <O>. In this way, as long as there is a peripheral key, it is possible to hit an adjacent key, give an arranger the necessary functions, and change the arrangement order accordingly.

     The basic time of the rudder can be set within 1/4 second. At normal input speeds, it is quick to hit the primary and adjacent keys in less than a quarter of a second. Therefore, if the simultaneous stroke is made within the basic time, the desired result value is displayed. If the adjacent kita enters after the basic time, the character originally assigned to the adjacent key is displayed. For example, if P + // + P <1/4 sec, <J> is met, if 1/4 sec = <P + // + P, <R> will be displayed according to the subsequent dividend order in the virtual folder. do. This solution is not a problem for normal speed input, but continuous typing of heterogeneous keys at the maximum possible speed can result in unwanted simultaneous strokes.

4 is a diagram relating to an English input / output process (basic type). In terms of this figure, <consonant consonants> are <Q, B, D, G, +, M, P, S, W>, and <basis collection> is <A, E, I, O, U, Y> Say. The basic consonants are sequentially arranged from keys 1 to 9, and subsequent consonants are placed on the basic consonants as specified, and they are sequentially displayed. The basic vowels are arranged in parallel with the consonants at keys 2, 3, 4, 6, 8, and 9, and after selecting the center point <+>, the vowel keys are displayed. Call order of consonants (basic consonants in parentheses) is (Q) Z, (B) CC, (D) F, (G) HJ, (+) KL, (M) NN, (P) R, (S) TV , (W) X. A basic time is allocated to each of these sequentially arranged basic consonants, and if there is no subsequent stroke within the basic time, each is confirmed. The center point <+> is placed in the first rank at key 5 and is represented by subsequent consonants and sequential blows. The process is described below.

     1. To input consonants, enter the consonant keys except for the center point, but enter the basic consonant with 1 stroke, the 2nd consonant with 2 hits, and the 3rd consonant with 3 hits. The data entered in this step is outputted and displayed as a letter through a predetermined process, and it can exit to <end> or go back to a new consonant or proceed to 2 below.

     2. If you want to input the basic vowel in the above paragraph 1, after selecting the center point, enter the vowel key. The data entered at this stage is outputted and displayed as a vowel after a predetermined process, and it can exit to <end> or go back to the new vowel or the above one.

     3. By repeating paragraphs 1 and 2 above, the alphabetic characterization continues.

Fig. 1: Basic keyboard for a-9 key, hereinafter referred to as reduced type, keyboard for b-8 key

Figure 2: Keyboard for a-7 keys, keyboard for b-6 keys

Figure 3: Keyboard for a-5 keys, keyboard for b-4 keys, keyboard for c-3 keys

4 is a diagram relating to an English character input process (basic type).

Claims (10)

As shown in FIG. 1A , (1) a center point (+) is provided at the center of the input keyboard (key 5 ) of 12 (4x3 type) keys to provide a vowel and special character call function, and (2) the peripheral point number 1 from the center point According to the consonant (QZ, BCC, DF, GHJ, KL, MNN, PR, STV, WX) in order to display the progressive congestion within each key, (3) Peripheral keys (2, 3, 4, 5) Vowels (A, E, I, O, U, Y) are arranged in parallel with consonants in order, and (4) the elements (jamo, center) inputted by these keys and the center point operation (preventive) 9 keys are used as the basic type for inputting alphabetic characters, or as the reduced form of each of the following to <10>. (5) As shown in FIG. 1B, key 1 is left blank and <PRQ>, Relocate <WXZ> and <Y> to key 9 to use eight keys, or (6) the elements PBJ, A to key 1, 2, 3, 4, 5 , 6, and 8 as shown in FIG. , FMX, I, +, O, S) can be arranged in sequence to use seven keys, or (7) keys 1, 2, 3, 4, 5 as shown in FIG. In order to use 6 keys by sequentially arranging elements (PBJ, AM, SFX, I, +, O) at No. 6, or (8) As shown in FIG. 3A, the elements (PBJ, AM, SFX, I, +, O) are used. PBJ, AM, SFX, +, O) in sequence to use five keys, or (9) Element 1 (PBJ, AMO, SFX, +) in sequence as shown in Fig. 3B. (4) an alphabet input processing method using three keys by sequentially placing elements (PBJ, + AM, SFOX) in keys 1, 2, and 3 as shown in FIG. 3C. In relation to (1) and (3) of claim 1, the vowels <A, E, I, O, U, Y> as shown in FIGS. -4,6,8,9 are arranged in consonants and parallel to facilitate vowel detection and input work, and after selecting the center key, the vowel key is processed by two strokes. Central operation and collection management method, characterized in that the system configuration can be selected in the way. (6) In each of the reduced forms of claim 1 or less, the subsequent letters allocated sequentially in each virtual folder whose base letter is the folder name are displayed by sequentially adding the center stroke after displaying each base letter. Center type futa type folder type self management method In each reduced form of (6) or less of claim 1, the second or third of the first and third keys, respectively, as determined by simultaneously typing the key 1, 2 or the key 2, 1 or the key 2, 3 or the key 3, 2, respectively. Adjacent key simultaneous method which saves the number of hits by letting you display one consonant consonant In Fig. 1 (9), <sub picture and key functions> are provided on keys 5 and 6 of Fig. 3b, respectively, in order to display each basic letter on the main screen and to follow the order determined by the subsequent divider of the basic letter. The screen will be displayed sequentially, and both keys can be selected in random order, and the selected letter will be replaced by the letter already displayed on the main screen, and it will be displayed again on the sub-screen in the order in which the subsequent dividends are set. Display-Touch-type display system that displays sequentially, and this process is cyclically displayed in the order of <Basic Jamo-Subsequent divider 1-Subsequent divider 2-Basis. In relation to paragraphs (1) and (3), three components (letters or symbols) are placed in the first column and the other three components in the second column in one key and Or by arranging the first column and including each additional member including the second column in the virtual folder in the reduced form under paragraph (1) (6) or by applying the center point futa function of claim 3 Expansion of keyboard function to handle up to 9 elements with one key <PBF>, <CJZ>, <SX>, <KGQ>, <+>, <TD>, <NM>, <H / NG>, <RL >, <VW>, <A>, <E>, <I>, <O>, <U>, <Y> under the consonants of keys 1,2,3,4,6,8,9 Repositioning and displaying <ROMANJI> in Japanese Roman notation using the center point or futa method. <PBF>, <CJZ>, <SX>, <KGQ>, <+>, <TD>, <NM>, <H / NG>, <RL >, <VW>, <A>, <E>, <I>, <O>, <U>, <Y> under the consonants of keys 1,2,3,4,6,8,9 Repositioning and displaying the Chinese-Chinese Pinyin Method in Chinese-Roman notation using the center point futa method. In the basic keyboard of claim 1, the consonants <1>, <9>, <9>, <ㅅ ㅆㅎ>, <ㄱㄲ ㅋ>, <+>, <ㄷ>, <b>, <ㅇㅁ>, <ㄹ>, the basic vowels under each key consonant <ㅘ>, <ㅏㅑ>, <ㅓㅕ>, <ㅣ ㅐ>, <+>, <ㅗㅛ>, <ㅡ ㅢ>, <ㅜㅠ>, <ㅝ> is rearranged, consonants are sequential blows, and the basic vowels are centered or futa, but the central vowels use the centered futabu method for the basic vowels. Korean Display Method for International Keyboards Using Korean Composition Claim 3 The basic consonants <ㅂㅈㅅ>, <ㄴㄱㄷ>, <ㅇ> are placed at the key 1, 3, 8, the center point (c) at the key 5, and the basic consonants of the key 1, 3 are sequentially Subsequent dividend consonants for each basic consonant shall be marked with the basic consonant (in parentheses), and then the center point expansion type futa method <(ㅂ) ㅃ, (ㅈ) ㅊ, (ㅅ) ㅎㅆ, (ㄴ) ㄹㅁ, (ㄱ) ㅋ ㄲ, (ㄷ) ㅌ ㄸ>, and <ㅣ> and <ㅡ> integrated <+> are allocated to key 2, and one stroke <ㅣ> and two strokes <ㅡ> are displayed. And vowel combining elements (dots for convenience) on keys 4 and 6, respectively, and then combine these four keys 2, 4, 5 and 6 to display the vowels of Korean characters. Hangul Display Method for Folded Miniature Keyboard that Displays Korean Syllables Using General Hangul Composition Method of Chosung + Neutral + Jongsung>

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