KR0159191B1 - Device and method for character input-code produce - Google Patents

Abstract

The present invention relates to an apparatus and a method for generating codes of consonants and vowels for Korean input, having only horizontal and vertical stroke keys and a plurality of numeric keys assigned with a plurality of at least two consonants. The code generating apparatus generates a code of a consonant previously assigned to a numeric key when a key having a plurality of consonants set therein is selected, and generates a code of a consonant allocated later if consecutively selected. When the stroke is input, the vowel codes are generated by combining the codes corresponding to the strokes based on the writing stroke order. The consonant code and the vowel code generated as described above are transmitted to the autometa and are divided into a consonant, a neutral, and a consonant and combined into a Korean code. Such a code generating device can be widely used for a device for inputting Korean characters by selection of a key.

Description

Character input code generation device and method

1 is a plan view of a telephone terminal device having a keypad arranged with multiple compound character input keys according to the present invention.

2 is a block diagram of a character input apparatus according to the present invention.

3 is a configuration diagram of the key buffer shown in FIG.

4 is a flowchart illustrating a character input code generation control according to the present invention.

5A and 5B illustrate another arrangement of multiple compound character input keys.

The present invention relates to an apparatus and method for generating a character code using a key, and more particularly, to an apparatus and method for generating a character input code using a minimized stroke key and a multiplex key.

An apparatus for inputting and displaying characters, for example, a device such as a computer, has a plurality of keys corresponding to the phoneme of each character, and assigns a specific type of code to each of the keys to characterize the character by a combination thereof. It was marked on the input device's notifier or stored in the memory of the character input device. Therefore, such a computer or similar input / display devices must be provided with a keyboard having a plurality of keys arranged for inputting the characters. As a conventional character input device, at least 26 or more keys must be provided to smoothly input Korean or English characters in a desired form, and codes corresponding to the keys must be provided.

However, the conventional character input device as described above has a very large volume and is difficult to carry, and it is difficult to be applied to a compact system due to a problem of installing a plurality of keys for inputting characters. For example, they could not be used in systems with less keys, such as cell phones, calculators, and organizers.

Another conventional character input method is a method of inputting / displaying a character using a push button switch installed in a telephone. Such a method is disclosed in a character input code (hereinafter referred to as a dissertation) using an electronic telephone, published on page 271 of the 4th Korean & Korean Information Processing Society Proceedings.

The Multiple Depression method, Single Depression method, Shift Key method, Code Table method, Adjacent button combination method, etc. disclosed in the paper display at least one or more characters on the digit button of the keypad of the telephone for dialing. It generates a character code that is input in advance according to the number of inputs or the '*', '0', and '#' keys.

In addition, in addition to the above-described method, strokes such as the writing stroke order are assigned to the minimized numeric keys, such as Patent Application No. 93-12632, filed on July 6, 1993, which was invented by inventor Choi In-cheol and filed by the applicant of the present application. In addition, a method and apparatus for generating a character input code by manipulating a stroke key in the writing order and the writing direction have been developed.

However, the character input method in the telephone using the multiple deflation method as described above has been complicated because the number of consonants assigned to one key is too large. In addition, the adjacent button combination method has a problem that it is difficult to master the input method. In addition, the character input method pre- filed by the applicant of the present application has a problem in that it is somewhat inconvenient to use when the input number of keys is large when a consonant is input. In particular, when it is necessary to search for the character input by patent application No. 93-12632, the number of times of input increases and there is a disadvantage in that the delimiter key must be pressed.

Accordingly, an object of the present invention is to provide a character input device and a method for assigning and inputting a phoneme of a Korean consonant to a plurality of keys and for inputting a desired vowel as a minimum stroke key.

Another object of the present invention is to provide an apparatus and method for generating a Hangul character input code by inputting the keys by allocating a plurality of consonants of Korean characters to a key of a minimized number and assigning strokes according to two handwritten stroke orders. have.

It is still another object of the present invention to assign two Hangul consonants to each of the digit keys for dialing of a telephone, and to assign a stroke key to generate a Hangul character code by the combination of the consonant keys and the writing stroke order and writing direction. An apparatus and a control method are provided.

The object of the present invention is to provide a keypad having directional stroke keys corresponding to the vertical and horizontal directions, a plurality of consonant keys assigned with a plurality of consonants of different Hangul consonants, and a code vector corresponding to the selection of a key located on the keypad. A user who analyzes the generated key input unit and the code vector generated from the key input unit to separate the consonants and vowels, and analyzes the continuity of the separated consonants to store the code vectors of the consonant and vowels in the first predetermined storage area. A vowel separation processor and a character generating phoneme information corresponding to the corresponding code vector when searching for the same vector by comparing a consonant code vector stored in the first storage area with a plurality of standard code vectors previously stored in the second storage area And a phoneme set in the second storage area corresponding to each of the standard code vectors in response to the generated phoneme information. Words) is accomplished by providing an apparatus consisting of a character generator code for accessing and outputting a code.

Among the above configurations for achieving the object of the present invention, the configuration other than the configuration of the keypad may be configured as a microprocessor in which a ROM and a RAM are connected or embedded, and as such a simplified configuration It will be apparent from the following description to implement an apparatus for inputting Korean code according to the present invention.

In describing the principle according to the present invention, a phoneme refers to an element constituting a character as the minimum unit of a character constituting the initial, neutral, and finality of the Hangul. In addition, a key means an input button for inputting a vowel of Hangul according to a method recommended by the present invention. In the present invention, a plurality of consonants and horizontal strokes (→ ) And vertical stroke (↓) and stroke for short and long term determination Means that each is assigned. Here, each of the above strokes is for inputting a vowel of Korean and corresponds to a vowel key.

The code vector refers to digital information in a form that can be recognized by the character searcher when a key to which a plurality of consonants or strokes are assigned is selected. In the present invention, each phoneme, a code vector, and a phoneme code correspond to 1: 1, respectively, which are set in one storage area. In the above, the phoneme code is a number code assigned to each phoneme, and is a code that can be recognized by an autometer for synthesizing letters of Korean characters.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 1 to 5a and 5b.

1 is a plan view showing a portable telephone terminal device, in which multiple compound character input keys are arranged on numeric keys on a keypad. Stroke keys → and ↓ for inputting a vowel are assigned to the number 9 and 0 keys located on the keypad shown in FIG. Such a stroke key will be very easily used to input consonants of Korean characters having only horizontal and vertical strokes as is well known. And key 8 is long and short decision stroke which decides long and short of stroke. Is set. Short and short decision stroke set in the present invention Generates data that determines the length (long and short) of the vowel writing order. For example, the stroke Is used to generate a short stroke in the direction of 90 ° with the corresponding stroke when the stroke key → or ↓ is selected.

A plurality of consonants in Hangul are assigned to the first to seventh keys, but a plurality of consonants are assigned to one key. For example, the consonants a and ㅋ are assigned to key 1, c and ㄸ are assigned to key 2, ㅂ and ㅂ are assigned to key 3, and and are assigned to key 4. Also, the consonants k and k are assigned to the fifth key, o and k are assigned to the sixth key, and b and d to the seventh key. The consonants are assigned to be input by the combination of the * key and the consonant, and the # key is used as a key for separating phonemes. In addition, the present invention assigns a consonant of ㅆ which is relatively used to the * key so that the consonant is input by one key input, and when the * key is input in advance of the key to which the other consonant is assigned, the consonant input later It is used to process as a consonant.

In an embodiment of the present invention, as shown in FIG. 1, a plurality of consonants are assigned to one number key as described above, but it should be noted that the consonants allocated to each number key may have the same effect as the present invention. This will be more apparent by the following description.

2 is a detailed block diagram of a Hangul character input code generating apparatus according to the present invention, a keypad 12 having directional stroke keys corresponding to the vertical and horizontal directions and a plurality of consonant keys allocated with a plurality of consonants of different Hangul consonants. A key input unit 14 which scans the keypad 12 at a predetermined period to generate a code vector corresponding to the selected key, a key buffer 24 which shift-writes the code vector input by predetermined control, and corresponds to each phoneme of Korean A code vector table (hereinafter referred to as CVT) in which an address and a code vector are set in advance, and a phoneme code table (CCT) storing an address and a phoneme code of a phoneme corresponding to each phoneme. The phoneme synthesis code table 28 and the code vector generated from the key input unit 14 are analyzed and separated into consonants and vowels. Consonant separation processing means for analyzing the continuity of vowels and storing code vectors of consonants or vowels in the key buffer 24, a plurality of standards pre-stored in the consonant code vectors stored in the key buffer 24 and the phoneme synthesis code table 28 A character searcher 26 for generating phoneme information corresponding to the code vector by comparing the code vectors, and corresponding to each of the standard code vectors in response to the generated phoneme information. A character code generator 30 that accesses and outputs a phoneme (character) code set in the above, an autometa 32 that generates characters by combining a phoneme code output from the character code generator 30, and an output of the autometa 34 as visible information. It consists of an output device 34 for display.

In the configuration of FIG. 2, the consonant and vowel processing means comprises: a consonant atmosphere 16 for separating the code vector output from the key input unit 14 into consonant and vowel signals, and a continuity of consonant and vowel separated and output from the consonant separator 16; It is composed of a consonant and vowel processor 18 which analyzes and stores the consonant or vowel code vector in the key buffer 24. At this time, the consonant processor 18 of the present invention is composed of a consonant processor 20 for searching for continuity of consonants and generating a code vector of consonants, and a vowel processor 22 for searching for continuity of vowels and generating a code vector of vowels.

In the configuration shown in FIG. 2, the key buffer 24 is a component corresponding to the first storage region, and the phoneme synthesis code table 28 is a component corresponding to the second storage region. Among the above components, the phoneme synthesis code table 28 is composed of a permanent storage memory, and as shown in Table 1 below, the CVT is composed of a key value composed of a column of address values corresponding to the phoneme. The CCT is composed of addresses and phone codes corresponding to the phonemes.

In Table 1 below, the phoneme code may be any type of data recognizable by the autometer 32 connected to the character code generator 30. That is, regardless of the specification of the autometer, if the above phoneme code is set to a phoneme code of a form suitable for the autometer, the character code can be generated by the method according to the present invention. Therefore, it can be seen that the phoneme codes shown in Table 1 above are arbitrary phoneme code embodiments, and can be changed according to the specifications of the autometa.

The embodiment in the case of FIG. 2 is configured to be usefully used in a telephone, and the key input unit 14 may be implemented by combining a DTMF receiver and a DTMF decoder which are generally used. If it is used in an electronic calculator or an electronic notebook, it has a function of scanning a keypad on the electronic computer or the MPU embedded in the electronic notebook, so that the key input unit 14 does not need to be separately configured. All that is required is to add a character code generator. That is, it should be noted that, among the configurations as shown in FIG. 2, all configurations except the keypad 12, the autometer 32, and the output device 34 can be configured as one-chip microprocessors having ROM and RAM.

3 shows the configuration of the key buffer 24 used in the present invention. The key buffer configured as shown in FIG. 3 is composed of five digit buffers DB, and the digit buffer DB is a 4-bit storage area capable of storing data in nibble units. In general, up to 12 stroke codes that can be generated from the keypads shown in FIGS. 1A and 1B can be represented, and 4 bits can represent 16 cases. All code vectors generated according to the present invention can be stored.

4 is a flow chart of the character input code generation control according to the present invention. A first code vector search process for generating a code vector corresponding to the selection of a key, and searching whether the generated code vector is a code vector corresponding to a stroke key; and a code vector currently input in the code vector search process is stroked. A consonant processing process of storing the input code vector in a first storage area in response to determining that the code vector is not a code vector, and in response to determining that the code vector currently input in the code vector search process is a stroke code vector, A code vector stored in the first storage area and a code vector in the CVT set in the second storage area by the consonant processing and the vowel processing; and storing the input stroke code vector in the first storage area. Comparing a phoneme code corresponding to the same code vector to generate a character input code.

Hereinafter, an operation of an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Now, when the character input device configured as shown in FIG. 2 is operated, the key input unit 14 scans the keypad 12 at predetermined intervals in step 42 of FIG. 4 and searches for key input in step 44. If it is determined that there is a key input from the keypad 12, the key input key 12 generates a code vector corresponding to the input key and supplies the code vector to the magnetic separator. That is, a digit corresponding to the selected key among the keys to which the consonants and the strokes are assigned as shown in FIG. For example, a user may enter a, ↓, When the numeric keys marked with the back are continuously pressed, the key input unit 14 generates digit data of 1, 8, and 9 as code beets and outputs them to the magnetic separator 16. In order to input the Hangul a letter in the above, the order of pressing 1 key, 0 key, 8 key, etc. is the same as the handwritten stroke order of Hangul. because, The stroke of is a stroke of a stage having a direction of 90 ° with the stroke ↓ previously input, because the present invention is defined, which will be easily understood by the following description.

Accordingly, the letter separator 16 analyzes the code vector output from the key input unit 14 in step 48 of FIG. 4 and determines that the code vector is a stroke key when the code vector value is 8, 9, or 0. It is not a key (ie, a vowel key). The consonant separator 16 that separates consonants or vowels by analyzing the values of the input code vectors as described above supplies the vowel code vectors to the vowel processor 22 in the vowel processor 18 and supplies the code vectors other than the vowels to the consonant processor 20. To enter.

Therefore, when the key value input by the user selects a key other than the stroke key, the consonant separator 16 outputs the received code vector to the consonant processor 20 so that the consonant processor 20 operates first.

The consonant processor 20 that inputs the code vector output from the Jamo separator 16 searches whether the code vector input in step 50 of FIG. 4 corresponds to the separation key (#). If it is a code vector corresponding to the search result separation key, the consonant processor 20 resets the key buffer 24 having the configuration as shown in FIG. 3 in step 51 of FIG. 4 and performs a digit value corresponding to the currently input code vector (#). Is stored in the key buffer 24 and is repeatedly operated from step 42 described above.

If the search result of step 50 determines that the value of the currently input code vector is not a value corresponding to the separation key, the Jamo processor 20 searches the contents of the key buffer 24 in step 52 to determine whether there is a previously input key. Search. If it is determined that there is no key input before the search result, the letter processor 20 selects the currently input code vector (for example, a value of 1 as a digit corresponding to the number 1 key when the user selects the number 1 key marked a). In the uppermost area MSN of the key buffer 24 configured as shown in FIG. 3, the text search unit 26 is operated.

However, if it is determined in step 52 that the key value previously input is in the key buffer 24, the consonant processor 20 searches whether the key value stored in the key buffer 24 is the same as the key value currently input in step 56. do. If it is determined that the key value already stored in the search result key buffer 24 is the same as the currently input key value, the consonant processor 20 stores the stored contents of the key buffer 24 configured as shown in FIG. Shift-write stores the currently entered key value in the most significant digit and operates the character searcher 26. The reason for performing the process 52 and 56 is to recognize the second assigned consonant when the same key is continuously input because two consonants are assigned to one numeric key as shown in FIG. . For example, when the same key of keys 1 to 7 is pressed twice in order to input consonants ㄲ, ㅌ, ,, ㅎ, ㅁ, ㅁ, ㄹ assigned to one numeric key as shown in FIG. In the 24, the code vectors 11, 22, 33, 44, 55, 66, and 77 are stored.

If it is determined in step 56 of FIG. 4 that the key value previously input and stored in the key buffer 24 is different from the key value, the consonant processor 20 searches whether the key previously input is * key in step 72 of FIG. This is to determine whether to convert the codevector outputted from the current Jamo separator 16 into the codevector of the double consonant or to process the codevector of the new consonant. If the previously input key is determined to be * in step 72 of FIG. 4, the consonant processor 20 converts the code vector of the currently input key value into a code vector of two consonants. Is shifted from the most significant digit MSN to the less significant digit LSN, stored in the key buffer 24, and the character searcher 26 is operated. Therefore, when the * 1 key is entered in advance by the above operation, and the first to fifth keys are entered later, the key buffer 24 has *, 1, *, 2, *, 3, *, 4, *, 5 You can see that the code vector is stored. However, if the previous key value stored in the key buffer 24 in step 72 is not *, the consonant processor 20 resets the contents of the key buffer 24 in step 74 and the current key value output from the current consonant separator 16 in step 76. The character vector 26 is stored by storing the code vector of the new consonant in the key buffer 24.

Therefore, when the user presses only one consonant key to which a plurality of consonants are allocated as shown in FIG. 1, the key buffer 24 includes a consonant marked earlier among the plurality of consonants (eg, a, c, ㅂ, ㅅ, It can be seen that the code vectors 1, 2, 3, 4, 5, 6, and 7 of B, B, and B are stored, and if the same key is pressed twice in succession, the key buffer 24 is marked with consonants marked behind a plurality of consonants. It can be seen that the code vectors 11, 22, 33, 44, 55, 66, and 77 of (eg, ,, ㅌ, ,, ㅎ, ,, ㅁ, ㄹ) are stored. In addition, when the user selects and presses the key 1 or 2 or 3, 4, and 5 consecutively to the * key to input a consonant, the key buffer 24 includes a plurality of consonants previously marked among the consonants (eg, It can be seen that it is stored as a code vector * 1 or * 2 or one of * 3, * 4, * 5 for processing a, c, ㅂ, ㅅ, ㅈ,) as a double consonant.

If the code vector outputted from the aforementioned letter separator 16 is a code vector corresponding to a stroke key, the vowel processor 22 in the alphabet processor 18 is operated. At this time, the vowel processor 22 reads the value stored in the key buffer 24 in step 78 of FIG. 4 and searches whether the code vector of the previously input key value is the stroke key (keys 8, 9 and 0 of FIG. 1). If it is determined that the key input before the search result of FIG. 78 is the stroke key, the vowel processor 22 shifts the stored data of the key buffer 24 from the most significant digit MSN to the less significant digit LSN as described above, and inputs the current key. The code vector, which is a key value corresponding to the stroke key, is stored in MSN, the upper digit of the key buffer 24, and the character searcher 26 is operated. Thus, as shown in FIG. When the strokes of?,?, And? Are continuously input, it can be seen that the code vector corresponding to the stroke key is stored in the key buffer 24. That is, when the user continuously presses the 0 key and the 8 key on the keypad 12 in order to input the vowel 코드, the code buffers 0 and 8 are stored in the key buffer 24. Where the above stroke Replaces the stroking of the unidirectional writing stroke order and has a 90 ° phase angle with the long stroke (eg, → or ↓).

However, if it is determined in step 78 that the previous key value stored in the key buffer 24 is not a code vector corresponding to the stroke key, the vowel processor 22 performs step 82 to reset the contents of the key buffer 24 and immediately starts from the letter-separator 16. The character searcher 26 is operated by storing the value of the transmitted codevector in the key buffer 24.

Therefore, the stroke key corresponding to the writing direction as shown in FIG. Or → or ↓) is selected only once, it can be seen that a code vector of 8, 9 or 0 is stored in the key buffer 24. Also stroke keys (e.g. Or → or ↓) are randomly inputted two or four times in succession, and the code vectors stored in the key buffer 24 are shown in Table 2 below.

On the other hand, the character searcher 26 operated under the control of the consonant processor 20 or the vowel processor 22 described above is used to control the code vector stored in the key buffer 24 and the CVT in the phoneme synthesis code table 28 (see Table 1 above). The code vector is compared in step 60 of FIG. 4, and it is searched for the same code vector in step 62. In step 62, if it is determined by comparison operation that none of the code vectors of the CVT in the phoneme synthesis code table 28 are the same as the code vector stored in the key buffer 24, the character searcher 26 processes the error in step 64. Then, the contents of the key buffer 24 are reset so that they can be operated from the above-described process 42.

If there is a match between the code vector stored in the search result key buffer 24 of step 62 and one of the code vectors of the CVT in the phoneme synthesis code table 28, the character searcher 26 determines the address of the corresponding phoneme in step 66 of FIG. To access the phoneme code of the phoneme from the CVT (see Table 1 above) in step 68. The character searcher 26, which has accessed the phoneme code of the corresponding phoneme from the CVT by the above operations, transmits the phoneme code to the autometa 32 and returns to the initial step 42.

Therefore, in order for a user to input Hangul characters, a, ↓, In the case of pressing the number key marked on the back consecutively, it can be seen that the character code generator 30 outputs the phoneme codes 1 and 20 of the CCT shown in Table 1 to the autometer 32 by the above-described operation.

The auto meter 32 that inputs a phoneme code output from the character code generator 30 converts the received phoneme code into a phoneme code of a consonant, neutral, and final form, converts the phoneme code into a normal Hangul code, and supplies it to an output device. In this case, the output device 34 accesses a font of a character corresponding to the combined Hangul code output from the auto meter 32 from a built-in font ROM so that a human eye can identify the display (e.g., an LCD). To be displayed in the form.

5A and 5B are exemplary views of another arrangement of multiple compound character input keys. That is, there is shown an embodiment of a variant in which positions of consonants and strokes allocated on the keypad 12 shown in FIG. 1 are located differently. 5a shows a stroke (→, ↓, It shows that the position of) is changed. 5b is a form in which the position of the consonant is changed. In the present invention, a, ㄲ, ㅌ, ㅌ, ㅂ, ,, ,, ,, ,,, 을, ,, ㅁ, ㅁ may be different positions even if the front and rear positions are changed. In addition, the above-described Korean consonant bundles may be input to any of the above-described Hangul codes even when allocated to any position except for the * and # keys of the button. When the consonants or the stroke positions are changed as described above, only the data in the code vector table should be changed corresponding to the keys according to Table 1 above.

As described above, the present invention assigns horizontal, vertical, and short and long strokes to each of the three numeric keys, and assigns a plurality of consonant phonemes to the other numeric keys to correspond to the Korean consonants and vowels by the combination of these keys. You can enter Hangul as a minimized key by entering a code.

Claims (7)

An output device that combines the phoneme codes input to generate Hangul codes of initial, neutral, and final characters, and a font ROM, and accesses and outputs font data corresponding to Hangul codes output from the autometer to a display device. A character input code generating apparatus comprising: a keypad having directional stroke keys corresponding to vertical and horizontal directions and a plurality of consonant keys assigned with a plurality of consonants of different Hangul consonants; A key input means for generating a code vector corresponding to the selection and a code vector generated from the key input means are analyzed and separated into consonants and vowels. Consonant separation processing means for storing in the set first storage area, a consonant code vector and a second low stored in the first storage area Character search means for generating phoneme information corresponding to the code vector when a plurality of standard code vectors previously stored in the long range are compared and searched for the same vector; and in each of the standard code vectors in response to the generated phoneme information. And a character code generating means for accessing the phoneme code set in the second storage area and outputting the same to the autometa. The consonant processing means according to claim 1, wherein the consonant processing means comprises: consonant separation means for separating the code vector output from the key input means into consonant and vowel signals, and continuity of consonant output separately from the consonant separation means; The consonant processing means generated by storing the code vector of the consonant in the first storage area and the continuity of the consonant outputted separately from the consonant separating means; And a vowel processing means for storing and issuing in a storage area. The character of claim 1 or 2, wherein the keypad comprises a plurality of numeric keys marked with a plurality of different consonants, a numeric key marked with a horizontal stroke, and a numeric key marked with a vertical stroke. Input code generator. A character input code generation method comprising a keypad having a plurality of consonant keys in which a plurality of directional stroke keys corresponding to vertical and horizontal directions and different Hangul consonants are sequentially assigned to each other. A code separation process of generating a code, separating the generated code into a consonant code and a code of a stroke, and responding when the separated consonant code is a single input, and generating a code vector of a consonant located before the numeric key on the keypad. A consonant code generation process of generating a code vector of a consonant located later on the numeric key in response to a continuous input, and of a stroke located on the numeric key on the keypad in response to the separate stroke code being a single input. Generates the vowel code corresponding to the direction, and responds when it is continuous input. Character input code how to generate a constituted by any bar to generate a corresponding bar code to code vector generation process characteristics. A character input code generation method having a keypad including directional stroke keys corresponding to vertical and horizontal directions and a plurality of consonant keys assigned with plural consonants of different Hangul consonants, the code vector corresponding to selection of a key A first code vector search process for searching whether the generated code vector is a code vector corresponding to a stroke key, and in response to determining that the code vector currently input in the code vector search process is not a stroke code vector, A consonant processing process of storing the input code vector in a first storage area and a stroke code vector continuously input in response to determining that the code vector currently input in the code vector search process is a stroke code vector; Storing in the first storage area by a vowel process for storing in a storage area, the consonant process, and a vowel process And generating a phonetic code corresponding to the same code vector by comparing the code vector with the standard code set in the second storage area to generate a character input code. 6. The method of claim 5, wherein the consonant processing comprises: generating a leading consonant code for storing a code vector of a consonant located before the numeric key on the keypad in the first storage area in response to a single input of the code vector of the consonant; And a trailing consonant code generation process of storing a code vector of a consonant located later on the numeric key in the first storage area in response to the code vector of the consonant being a continuous input. Character input including directional stroke keys corresponding to the vertical and horizontal directions, a stroke key for short and short decision, and a keypad including at least one consonant key to which a first consonant and a second consonant different from the first consonant are respectively assigned; A code generation method, comprising: a first consonant code generation process of generating a code corresponding to a first consonant of a corresponding consonant key in response to a first selection of the consonant key, and a corresponding consonant in response to a second selection of the consonant key A second consonant code generation process for generating a code corresponding to the second consonant of the key, and a vowel code generation process for generating a vowel code according to a selection order of the stroke key and the short-term determination stroke key; Character input code generation method.