KR0123403B1 - Hangul english automatic translation method - Google Patents

Abstract

Korean-English automatic converse method for using Korean-English typing editor, word processor, diagram editor, spread sheet, database electronic dictionary, or electronic mail, when inputting Korean and English data without distinction automatically separating and recognizing Korean and English and convertingwhen input words disobeying Korean needs according to order of consonant and vowel, convert the words to English alphabet conversely disobeying English needs convert input alphabet to Korean consonant and vowel.

Description

Korean-English automatic switching method

1 is a block diagram of a word processor to which the present invention is applied.

Figure 2 is a flow chart of the process of automatic conversion of Korean, English words in units of words according to an embodiment of the present invention.

FIG. 3A is a processing flowchart for checking whether a word satisfies the Hangul requirement of FIG. 2. FIG.

FIG. 3B is a processing flowchart for checking whether a word satisfies the English requirement of FIG. 2. FIG.

3C is a process flow chart for checking whether unnecessary shift-keys of FIG. 2 are used.

FIG. 3d is a processing flowchart for checking whether the shift-key of FIG. 2 is used.

FIG. 3E is a processing flowchart of the step of dividing the words of FIG. 2 into words and surveys.

FIG. 3f is a processing flowchart for checking whether a word satisfies the search combining rule of FIG.

4 is a flowchart illustrating a method of automatically switching between Korean and English characters in units of letters according to another embodiment of the present invention.

FIG. 5 is a processing flowchart for checking the Hangul requirements of FIG.

* Explanation of symbols for main parts of the drawings

1: ROM 2: Central Control Unit (CPU)

3: RAM 4: Display

5: disk drive unit 6: input unit

7: output unit

The present invention provides a Korean mode and a Korean mode when inputting Korean and English data in an editor, word processor, diagram editor, spreadsheet, database, electronic dictionary, e-mail, data or command input, etc. The present invention relates to a Korean-English automatic conversion method for automatically recognizing and converting data input from a keyboard into Korean and English without distinction.

In general, in a conventional text editor that uses both Korean and English data, the Korean and English input mode should be switched using a switch key to input Korean and English data, respectively.

In this case, the frequency of use of the conversion key may vary depending on the type of document, but it may be inconvenient for the user to use the conversion key every time the Korean-English conversion is performed. Then came the inconvenience of having to make corrections.

Therefore, the present invention devised to solve the above problems, when the input character violates the requirements of the Hangul, the English alphabet of the keyboard corresponding to the order of the input alphabet, and convert the English requirements The above object is to provide a Korean-English automatic conversion method that converts the Hangul alphabet corresponding to the input alphabet, that is, simultaneously processes Korean and English in either mode without distinguishing between Korean and English modes.

In order to achieve the above object, the present invention provides an automatic Korean-English switching method applied to a document input means having a CPU and a memory, comprising: a first step of receiving at least one word; Dividing the word into a word and a search; A third step of performing a Korean-English determination on the separated word; And if the word is determined to be a Korean word, converts the word to Korean. If the word is determined to be an English word, if the word exists, the word and the word of the word are converted to English and Korean. It provides a Korean-English automatic switching method comprising a fourth step of converting to English.

In addition, in order to achieve the above object, the present invention is a Korean-English automatic switching method applied to a document input means having a CPU and a memory, comprising: a first step of performing initialization; A second step of receiving at least one key; After performing the second step, adding a key to the word, and performing a Korean-English determination and mode switching on the word, and returning to the second step, wherein the third step includes the current mode. A fourth step of checking whether a word satisfies the Hangul requirement if the current mode is determined to be the Hangul mode and returns to the second step if the Hangul requirement is satisfied; In the fourth step, if the current mode is determined to be the Hangul mode and the word does not satisfy the requirements of the Hangul, switching to the English mode and returning to the second step; A sixth step of checking whether a word satisfies an English requirement if it is determined that the current mode is the English mode; In the sixth step, if the word is not satisfied with the English requirements, and the mode is switched to the Hangul mode, and returns to the second step, and if it satisfies the seventh step of returning to the second step; The process of checking whether the requirement is satisfied includes an eighth step of determining that the word satisfies the Hangul requirements if the word satisfies the Hangul combination rule and satisfies the Hangul requirement if the Hangul combination rule is satisfied. The process of checking the satisfaction of the English requirements is judged as dissatisfied with the English requirements if there are four consecutive English consonants in the word, and if there are no four consecutive English consonants, And a ninth step of determining that the condition is satisfied, wherein the English consonants of the ninth step are English letters except a, e, i, o, u, A, E, I, O, and U. .

In addition, in order to achieve the above object, the present invention is a Korean-English automatic switching method applied to a document input means having a CPU and a memory, comprising: a first step of receiving at least one word; A second step of performing a Korean-English determination on the word; If the determination result of the second step is Hangul, and the word is translated into Hangul, and if the determination result is English, the third step is to convert the word into English. If it is determined that the word satisfies the Hangul combination rule of Hangul and the word is not an English word satisfying the Hangul combination rule, the fourth step of determining the word as Hangul, and the word is the English word satisfying the Hangul combination rule. If it is determined or if the word does not satisfy the Hangul combination rule, the fifth step of determining the word in English.

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

In the present embodiment, a case in which the Korean keyboard is a double bee type and the English keyboard is a QWER keyboard will be described with an example.

First, FIG. 1 is a hardware configuration diagram of a word processor, which is an example of a device to which the present invention is applied. In the drawings, 1 is a ROM, 2 is a CPU, 3 is a RAM, 4 is a display, and 5 is a disk. The drive unit 6 denotes an input unit and 7 an output unit.

Since the word processor shown in the drawings is a well-known configuration, detailed description thereof will be omitted. However, the control program according to the present invention, which is mounted on the RAM 3 and executed, is mounted on the ROM 1 or the disk, and when the power is applied, the control program is transferred to the RAM 3 and the Korean / English data is input from the keyboard. The CPU 2 converts the data in the RAM 3 or the display unit 4 according to the determination result.

FIG. 2 is a flowchart illustrating a method of automatically switching word units between Korean and English according to an embodiment of the present invention, which is mounted in the RAM or ROM of FIG. 1. Here, the word means a string in which Korean or English letters are contiguous as sentence components separated by spaces or punctuation marks. The automatic switching of Korean and English in word units is a method of performing automatic switching between Korean and English for a word that has been input when a key indicating that word input is completed, such as a space.

First, a method used to determine whether a word is a Korean word is as follows.

1. Detection of characters that violate the Hangul alphabet

2. Detect letters not used in Hangul (hereinafter referred to as Hangul unused letters)

3. Detecting the use of shift-keys (hereinafter referred to as unnecessary shift-keys) for phonemes (keys) without double consonants or double consonants

4. Detection using basic dictionary of English words (hereinafter referred to as duplicate words) that meets Hangul Jamo rule

5. Judgment and Separation Recognition of Korean and English by the Combined Principles of Hangul Survey of English Words (hereinafter, Duplicate Words) with Hangul Survey at the End

6. Judgment using the user's dictionary of exceptional English abbreviations or proper nouns that conforms to the Hangul Jamo Rules but does not exist in the Basic Dictionary

7. Forced Korean-English conversion of words whose judgment according to 1 to 6 does not match the intention of the user

According to the above 1 to 5, in most cases, automatic determination of Korean and English is made without error. Paragraphs 6 and 7 are methods to solve the case where the lower case English abbreviation that satisfies the Hangul combination rules.

For the implementation of paragraphs 2, 4, and 5, the unused Hangul dictionary, the basic dictionary (the dictionary which collects the words to be judged in English as the words satisfying the Hangul or English conditions), and the duplicate search dictionary English Word Dictionary), Korean Survey Dictionary, etc. were constructed, and the Korean and English sentences were judged by referencing and using them. That is, when it is recognized as Hangul based on the judgment using each syllable information of the input word, the word dictionary (Basic Dictionary) matching the Korean and English keys is searched and if it exists in the dictionary, the Korean and English frequently used modes are output.

When there is little information on Korean-English separation, Korean-English matching occurs as above. Most of these words do not exist in the Korean dictionary, and the frequency of use of English is much higher than Korean in terms of frequency of use.

For example, in the Hangul mode, the input word angle is represented by Shundi. Each syllable of Shundi is a word that exists in the Korean dictionary, but the word does not exist in the dictionary. Most of these words are not used in Hangul.

In addition, it is determined as follows that the input word is not an English word so that a Korean with a typo is not mistaken for English.

1. Is there no English vowel?

2. Do you have four or more consonants in a row?

In this case, the vowel in English means a (A), e (E), i (I), u (U), y (Y) and consonants mean all English letters except the English vowel. The reason why y (Y) is included in the vowel is that it can be classified as a vowel in pronunciation such as by, cry, fly or '-ly'. In order to determine the above term 2, ie, are there four or more consecutive English consonants ?, which is a method of determining whether or not it is English, a dictionary having four consecutive English consonants is used.

Now, referring to the drawings in detail the implementation procedure of the present invention will be described.

As shown in the drawing, in the present embodiment, when power is first applied, the relevant function unit is initialized (20), and a Korean-English conversion target word is received (21). Then, the received word is divided into words and surveys according to the Hangul search rules (22), and the separated words are user dictionaries (a Korean-English duplicate word dictionary defined by the user. (23), and the setting value is referred to as the reference value of the word (23). In this check step 23, if the word is in the user dictionary, it is checked if the reference value of the word is 'Hangul' (27), whereas if the word is not in the user dictionary, it is checked if unnecessary shift-keys are used (24), If not, it checks whether the whole word satisfies the Hangul's requirements (25). In this check (25), if the word satisfies the Hangul requirements, it is determined whether the word exists in the basic dictionary (26). If the word does not satisfy the Hangul requirements, it is determined whether the word satisfies the English requirements. If it is not satisfied (28) and if it is not satisfied (28) then it is checked if there is a use of the shift-key (29). Here (29), if there is no use of the shift-key, it is checked whether the association rule of the survey is satisfied (30). In the above various checks, if the word does not exist in the basic dictionary (26), or if the reference value of the word is 'Hangul' (27) or satisfies the combination rule of the survey (30), the word is converted to Korean (32). And then the word's reference value is not 'Korean' (27), an unnecessary shift-key is used (24), an English requirement is met (28), or there is a shift-key used (29) In addition, it checks whether there is a search separated from the word when the combination rule of the search is not satisfied (30) or the word exists in the basic dictionary (26). Here (31), if there is an investigation, the word is converted into English and the investigation is converted into Korean (33). If there is no investigation, the whole word is converted into English (34) and then terminated. As mentioned above, the method of determining and converting the word part of a word in Korean and English can be equally applied to a word even when the word is not used in the word or in the case of automatic conversion without processing the word. Do.

After the word switching 32, 33, 34 in FIG. 2, the execution can be executed again from the input step 21 of the word to be switched.

3A to 3F show the steps 25 and 28 of checking whether the Korean and English requirements are satisfied in FIG. 2, and the step 24 of checking whether unnecessary shift-keys are used (24). The flow chart shows in more detail a step 29 of checking whether the word is used, a step 22 of separating the word and the word, and a step 30 of checking whether the combination rule of the search is satisfied.

First, FIG. 3A is a flowchart illustrating a process of checking whether a word satisfies a Hangul requirement. As shown in the drawing, a method of checking whether a word satisfies a Hangul requirement is as follows. Neutrality is determined to satisfy the vowel (40), and if it is satisfied, it is determined that the Hangul requirements are satisfied. Here, Hangul combination rules operate on the following principle.

* Hangeul consists of at least syllables with both initial and neutral syllables.

If a word processor operates and does not meet the above principles, the input data is considered to be in violation of the Hangul requirements.

FIG. 3B is a process flow chart for checking whether a word satisfies the English requirement. This check first checks whether the word separated from the word is a single letter as shown in the drawing (41). If the word consists of, it is determined to satisfy the English requirements. If the word consists of two or more letters, it is checked whether one or more English vowels exist in the word (42). If five or more English consonants are not contiguous in a word, it is again examined whether four English consonants are contiguous in the word (44), and if they are contiguous, it is checked whether they are English words with four consecutive consonants (45). . At this time, if four English consonants are not contiguous or four English consonants are contiguous, it is determined that the word satisfies the English requirements. On the other hand, if at least one English vowel does not exist in the word, five or more English consonants are contiguous to the word, or if the word is not an English word having four consecutive consonants, it is determined that the English requirement is not satisfied. Here, since the number of English words having four consecutive consonants is not many, it is possible to check whether the English words have four consecutive consonants.

FIG. 3C is a process flow chart for checking whether unnecessary shift-keys of FIG. 2 are used. This check is performed by first checking whether the CapsLock-key is pressed at the time of key input (46). If it is not pressed, it checks whether the shift-key is pressed when the key is pressed (47). When the caps lock-key is pressed during key input or the shift-key is pressed during key input, it is checked whether there are two Korean characters corresponding to the key (48). Here, if the shift-key is not pressed during key input or there are two Hangul characters corresponding to the corresponding key, it is determined that unnecessary shift-key is not used, and when the caps lock-key or the shift-key is pressed If there are no two Hangul characters corresponding to the key, it is determined that an unnecessary shift-key is used. For example, if a shift-key is used when other keys except for q, w, e, t, r, o, and p are input, it is determined that unnecessary shift-key is used. In other words, if a shift-key is pressed on a key that is not case sensitive in the Korean keyboard during the input-key processing of the initial, neutral, and final types, it is determined as English. For example, the Hangul-key 'ㄴ' is always output as 'ㄴ' when the shift-key is pressed or not. Therefore, when the user inputs the shift- 'ㄴ' in the Hangul mode, it is determined that the uppercase English-key 'S' is pressed.

FIG. 3d is a process flow chart (29) for checking whether the shift-key of FIG. 2 is used. This check is performed by first checking whether the CapsLock-key is pressed when a key is pressed (49). If it is not pressed, it checks whether the shift-key is pressed at the time of key input (50). At this time, if the shift-key is not pressed, it is judged that there is no use of the shift-key, and if the caps lock-key is pressed, or if the shift-key is pressed, it is determined because there is a use of the shift-key.

FIG. 3e is a processing flowchart of step 22 of dividing the words of FIG. 2 into words and surveys. As shown in FIG. (51) If there is a match, the word itself is checked to see if it is an English word that includes the search as part of the word (52). If it is determined that the end of the test is not an English word that matches the survey, the word is divided into a word and a survey (53). If the end of the word does not match the survey or the word is an English word that includes the survey, the word is examined. It is determined that there is no word (54). Here, the method of separating the survey included at the end of the word is a well-known technique, and thus the detailed description thereof will be avoided. February)

Often, a Korean word is attached to an English word with Korean and English mixed in the input word. In this case, the automatic separation mode implementation loses its effect unless the survey is separated. In the combination of English and survey, the survey is completely Korean, so no combination of English and input can cause conversion due to a collision with the target word. However, if the end of the word being converted matches the survey, it can be mistaken for a survey. In FIG. 3E above, when the end of an input word is expressed as a search, the end is searched by referring to a search duplicate word dictionary so that the end does not mistakenly separate an English word that matches the Hangul search. Check if the word matches the English word. For example, in Korean mode, when the input word is dark, the conversion target word is expressed as ㅇ ㅁ. At this time, since the end of the word ㅇ ㅁ, the subject to be converted, may be mistaken as an investigation. Not many of the words in English match the survey. The suffixes of the rest of the English words do not match the Hangul survey.

FIG. 3f is a process flow chart 30 that checks whether the word satisfies the combination rule of the survey of FIG. 2, which is first checked as shown in the drawing (55). If there is no investigation, it is judged as satisfactory combination rule. If there is a search in the word, the word is checked to see if it ends with a consonant (56). If the word ends with a consonant, it is checked if the search can come after the consonant (57). At this time, if the investigation can be followed by consonants, it is determined that the combination rule of the survey is satisfied. If there is a search in a word and the word in the word ends with a consonant but the search used cannot be followed by the consonant, it is judged to be dissatisfied with the rule of investigation. In addition, when there is a search in a word and the word of the word does not end with a consonant, it is checked whether the used search can come after the vowel (58), and if it can come, it is determined that the search combining rule is satisfied. Deemed dissatisfied with the Investigation Coupling Rules.

In the case of Hangeul investigation, the principle of combining opinions and investigations is determined by the statement or investigation. Investigations that combine only with consonants ending with consonants include silver, silver, and, ah, etc., and ending with vowels, silver, silver, and, high, field, da, la, lang, ooh, yo, etc. to be. It is judged in English if the rule of contradiction is breached.

These steps are effectively used to judge Korean and English input words. The word to be converted is variably designated according to whether the survey is used or not, and the mode is switched to the corresponding English code or Korean code according to the order of input data.

Meanwhile, another embodiment of the present invention will be described in detail below with reference to FIGS. 4 and 5 of the accompanying drawings.

First, FIG. 4 is a flowchart illustrating a method of automatically switching between Korean and English characters in accordance with another embodiment of the present invention, and performs automatic switching between Korean and English on the word data input so far each time a key is input. As shown in the figure, another embodiment of the present invention, once power is applied, initializes the relevant functional unit and initially sets the mode to Korean or English mode (60). Subsequently, a single letter (key) is input (61) (at this time, for convenience of explanation, it is assumed that a special command execution key such as a back space key or a left and right cursor movement key is not used), or an English or Korean key. The cognition is checked (62). If it is an English or Korean key, after executing the Hangul combination (63), it is checked whether the current mode is the Hangul mode (64). If it is determined that the Hangul mode is used, it is checked whether there is unnecessary shift-key use (65), and if not, it is checked whether the Hangul requirements are satisfied (66). If the requirement of the Hangul is satisfied, the method returns to step 61 of receiving a character. If the requirement of the Hangul is not satisfied, it is checked whether there are four consecutive consonants in English (67). At this time, if there are four consecutive English consonants, it checks whether there is a shift-key use (68), and if so, returns to the step of receiving a letter (61), and there are no four consecutive consonants or the use of the shift-key. If so, the mode is switched to English (69) and the character is returned to step 61 of receiving an input. In addition, if there is unnecessary use of the shift-key in the inspection step 65, the mode is switched to English (69), and the flow returns to step 61 for receiving the next letter.

In the current mode step (64), if it is determined that it is not the Hangul mode, that is, the English mode, it is checked whether there is a shift-key used (71). If there is no use of the shift-key, it checks whether there are four consecutive consonants in the alphabet (72), and if so, switches the mode to the Hangul mode (73), and returns to step 61 for receiving letters. At this time, if there is a use of the shift-key or there are no four consecutive places of English consonants, the method returns to step 61 of receiving letters.

On the other hand, in step 62 of checking whether an input character is an English key or a Korean key, a complete word is established if it is not an English key or a Korean key. Therefore, the word and the word of FIG. From the step of separating into irradiation, the word conversion steps 22 to 34 are executed (70), and the process returns to the step (60) of initialization.

For reference, the input of the back space key is regarded as the data of the word being input and the input of the word is not terminated. The key for completing the input of the word is most of the keys except for the Korean or English keys and the back space key, and the representative one is a space key. Special keys, such as cursor movement keys, can be treated as ending or not ending words, depending on the needs of the user.

FIG. 5 is a detailed processing flowchart of the step of checking whether the Hangul requirement of FIG. 4 is satisfied. This check first checks whether the Hangul combination rule is satisfied (80), and if it is satisfied, the unused letter is in the word. (81). If the unused letters are not in the word, it is determined that the Hangul requirements are satisfied. On the other hand, if the unused letters are in the word or if the Hangul combination rules are not satisfied, the Hangul requirements are not satisfied. Here, the check 80 of the satisfaction of the Hangul combination rule determines that the Hangul combination rule is satisfied if the last syllable of the word is still being input, so that it has a consonant. One example of unused letters Is a letter not used in modern Korean, that is, unused.

According to the present invention made as described above, when the input characters violate the requirements of the Korean alphabet, if the English requirement is met or if the possibility of the English word is detected, the English alphabet is converted to the corresponding English alphabet and vice versa. If it does not, it is possible to switch to the alphabet of Hangul corresponding to the input alphabet, that is, it is possible to simultaneously process Korean and English in either mode without distinguishing between Korean and English modes, thereby improving user convenience.

Claims (22)

An automatic Korean-English switching method applied to a document input means having a CPU and a memory, comprising: a first step of receiving at least one word; A second step of dividing the word and the word of the word into a word; A third step of performing a Korean-English determination on the separated word; And if the word is determined to be a Korean word, converts the word to Korean. If the word is determined to be an English word, if the word exists, the word and the word of the word are converted to English and Korean. Korean-English automatic switching method comprising a fourth step of converting to English. The word processing of claim 1, wherein the second step checks whether the word is an English word whose end matches the search, and if the end is determined to be an English word that matches the word, the whole word is treated as a word and no word is processed. Korean-English automatic switching method comprising the fifth step. The method of claim 1, wherein the third step includes a fifth step of determining the word as Korean when the separated word satisfies a Hangul requirement and determining the word as English when the Hangul requirement is not satisfied. Korean-English automatic switching method. The method of claim 1, wherein the third step comprises determining the word as Korean when the separated word satisfies the Hangul requirement, and when the word satisfies the English requirement when the word does not satisfy the Hangul requirement. And a fifth step of determining the word in English and determining the word in Korean when the English requirement is not satisfied. 5. The method of claim 4, wherein the fifth step determines that the word satisfies the English requirements if there are no more than four consonants in the English expression of the word, and the four or more consonants are contiguous. And a sixth step of determining that the word is not satisfied with the English requirement. [6] The Korean-English consonant of claim 5, wherein the English consonants of the sixth step mean English consonants except for the English vowels a, e, i, o, u, A, E, I, O, and U. Auto switch method. The English consonant of claim 6, wherein the English consonants of the sixth step mean English consonants except for English vowels a, e, i, o, u, A, E, I, O, U and English consonants y and Y. Korean-English automatic switching method. 6. The method of claim 5, wherein the checking of the requirement of satisfying the English requirement in the sixth step comprises: checking whether the word is an English word having four consecutive English consonants even though there are four consecutive English consonants in the English expression of the word. And a seventh step of determining that the word satisfies the English requirements if it is an English word having four consecutive English consonants. The method according to claim 3 or 4, wherein the Hangul requirement of the fifth step is determined that the word satisfies the Hangul requirements if the word satisfies the Hangul combination rule, and dissatisfied the Hangul requirement if the word satisfies the Hangul combination rule. Korean-English automatic switching method comprising the sixth step of judging. The method according to any one of claims 2 to 4, wherein the third step determines whether the word is an English word that satisfies the Hangul combination rule and determines that the word is in English if it is determined to be an English word that satisfies the Hangul combination rule. Korean-English automatic switching method comprising the sixth step. The method according to any one of claims 2 to 4, wherein the third step includes a sixth step of determining the word in English when a key having an unnecessary shift key is used in the word. Auto switch method. 12. The method of claim 11, wherein in the sixth step, if an unnecessary shift key is used for a key, an unnecessary shift key is input if two Korean phonemes corresponding to the key do not exist and the shift key is pressed together when the key is input. Korean-English automatic switching method comprising a seventh step of determining that is used. The method of claim 2, wherein the first step comprises: a sixth step of performing initialization; A seventh step of receiving at least one key; Adding the key to a current word; And a ninth step of returning to the seventh step. 14. The method of claim 13, further comprising: a tenth step of making a Korean-English determination on a word immediately after performing the eighth step; And an eleventh step of switching modes after the tenth step. 15. The method of claim 14, wherein the eleventh step includes a twelfth step of switching a mode to English when the word is determined to be English in the tenth step, and switching the mode to Korean when the word is determined to be Hangul. Korean-English automatic switching method characterized in that. 15. The method of claim 14, wherein in the tenth step, if the current mode is the Hangul mode and the word satisfies the Hangul requirements, the word is determined to be Hangul, and the current mode is English and four English consonants are consecutive to the word. And a twelfth step of determining the word in English if there is no word. An automatic Korean-English switching method applied to a document input means having a CPU and a memory, comprising: a first step of performing initialization; A second step of receiving at least one key after the step; A third step of inspecting the input key; A fourth step of adding the key to a word if it is determined that the input key corresponds to a key corresponding to Korean or English; A fifth step of making a Korean-English determination on the word after the fourth step; A sixth step of switching a mode after the fifth step; A seventh step of returning to the second step after the sixth step; An eighth step of making a Korean-English determination on a word if it is determined that the key input in the third step is not a key corresponding to Korean or English; A ninth step of performing word conversion after the eighth step; And a tenth step of returning to the first step after the ninth step. 18. The method of claim 17, wherein if the current mode is Korean and the word satisfies the combination rule of Korean, the word is determined to be Korean. If the current mode is English and there are no four consecutive English consonants in the word, Korean-English automatic switching method comprising the eleventh step of determining the word in English. 18. The method of claim 17, wherein in the sixth step, when the current mode is the Hangul mode and the word is determined to be English in the fifth step, the mode is changed to the English mode, and the current mode is the English mode and the word is in the fifth step. And an eleventh step of switching the mode to Hangul if it is determined as Hangul. 18. The method of claim 17, wherein if the word satisfies the Hangul combination rule and the word is not an English word satisfying the Hangul combination rule, the word is determined to be Hangul and the word satisfies the Hangul combination rule. And an eleventh step of determining the phrase as an English word if it is determined as an English word. The English consonant of claim 11, wherein the English consonants of the eleventh step means English consonants except English vowels a, e, i, o, u, A, E, I, O, U and English consonants y, Y. Korean-English automatic switching method. 18. The method as claimed in any one of claims 18 to 17, wherein the fifth step includes a twelfth step of determining a word in English when there is a key used for an unnecessary shift key, and whether the unnecessary shift key is used. The inspection comprises the thirteenth step of determining that unnecessary shift keys are used when two Korean phonemes corresponding to a key do not exist and the shift keys are pressed together when the key is input. .