KR101308249B1 - Method and Apparatus for inputting a Hangeul word on a communication terminal - Google Patents

Abstract

A method and apparatus for inputting Korean characters in a communication terminal are provided. According to an embodiment of the present invention, a Hangul input method of a communication terminal having a plurality of keys for inputting a Hangul is a first group to which vowel strokes are assigned for inputting a Hangul vowel from among the plurality of keys. Receiving at least one vowel stroke using a key of the user; receiving at least one consonant stroke using a second group of keys to which consonant strokes for inputting a Korean consonant among the plurality of keys are allocated; Recognizing the input vowel stroke and the consonant stroke according to the Hangul writing order, and combining the recognized vowel stroke and consonant stroke to generate a complete Hangul characters.

Hangul input, consonant stroke, vowel stroke, keypad

Description

Method and Apparatus for Hangul Input of Communication Terminal {Method and Apparatus for inputting a Hangeul word on a communication terminal}

1 illustrates a keypad of a conventional communication terminal.

2 is a diagram illustrating a configuration of a communication terminal according to an embodiment of the present invention.

3 is a diagram illustrating a keypad of a communication terminal according to an embodiment of the present invention.

4 is a block diagram of a Hangul input device according to an embodiment of the present invention.

5A and 5B are flowcharts illustrating a process of generating a Korean character by inputting a vowel stroke and a consonant stroke according to an exemplary embodiment of the present invention.

The present invention relates to a communication terminal, and more particularly, to a method and apparatus for inputting Korean characters in a terminal.

With the development of communication technology and popularization of communication terminals, voice communication is basic and various additional services including text services are provided. In particular, the Short Message Service is used not only by a part of enjoying additional services, but by people of all ages. Therefore, a lot of researches on a convenient and efficient character input method, in particular, the Hangul input method used to use the single character service.

A conventional Hangul input method will be described using an example of a communication terminal of Samsung Electronics. Samsung's telecommunications terminal uses Cheonjiin (l, ·, ㅡ) to express vowels and uses 19 consonants (ㄱ, ㄴ, ㄷ, ㄹ, ㅁ, ㅂ, ㅅ, ㅇ, ㅈ, ㅋ, ㅋ) Hangul is written using,, ㅎ, ㄲ, ㄸ, ㅃ, ㅆ, ㅉ).

1 is a diagram illustrating a keypad of a conventional communication terminal as described above.

Referring to FIG. 1, the digits' 1 ',' 2 ', and' 3 'are assigned to cheonjiin (l, ·, ㅡ) for vowel synthesis, respectively, and the consonant' a 'and' ㅋ 'is assigned, the consonants' b' and 'ㄹ' are assigned to the numeric key '5', and the consonants' ㄷ 'and' ㅌ 'are assigned to the numeric key' 6 '. Then, consonants' ㅂ 'and' ㄷ 'are assigned to the numeric keys' 7', consonants' ㅅ 'and' ㅎ 'are assigned to the numeric keys' 8', and consonants' ㅈ 'and' ',' And '0' are assigned consonants 'ㅇ' and 'ㅁ'.

If you use the keypad as described above with the celestial and consonant assigned, you can use the seven keys (19, ㄱ, ,,, ,, ,, ㅂ, ㅅ, ㅇ, ,, ㅋ, ㅋ, ㅌ, ,, ㅎ). , ㄲ, ㄸ, ㅃ, ㅆ, ㅉ) can be generated. That is, the consonants are generated according to the number of times the key assigned to the consonants is pressed. However, as described above, since the total number of consonants to be generated is 19, since the number of keys to which the consonants are assigned is seven, two or more consonants are assigned to one numeric key. Among them are consonants (ㄲ, ㄸ, ㅃ, ㅆ, ㅉ) which are not marked on the numeric keys. In order to input consonants not displayed on the numeric keys, it is inconvenient to remember the input method. In addition, when pressing a number key assigned a plurality of consonants, the time interval between pressing the number key is also important because different consonants are displayed according to the number of presses. If the numeric key is pressed late or quickly, there may be a case where an unintended letter is displayed.

Accordingly, the present invention provides a Korean input method and apparatus capable of displaying vowel strokes and consonant strokes on a keypad of a communication terminal and generating vowels and consonants of Korean characters using only the displayed vowel strokes and consonant strokes.

According to one aspect of the present invention, the Hangul input method in a communication terminal having a plurality of keys (key) for inputting Hangul, a vowel stroke for the input of Hangul vowels of the plurality of keys from the user is assigned Receiving at least one vowel stroke using a first group of keys and inputting at least one consonant stroke using a second group of keys to which consonant strokes for inputting a Korean consonant among the plurality of keys are input from the user Receiving, the process of recognizing the input vowel stroke and consonant stroke in the Hangul writing order, and combining the recognized vowel stroke and consonant stroke to generate a complete Hangul characters.

According to another aspect of the preferred embodiment of the present invention, a Hangul input device of a communication terminal includes a first group of keys to which vowel strokes are assigned for Hangul vowel input and a second group of keys to which consonant strokes are assigned to Hangul consonant input. A vowel mark and a consonant mark for recognizing at least one consonant stroke inputted through a key of the first group and at least one consonant stroke inputted through a key of the second group according to a Hangul writing order; Recognition unit, and Hangul character generation unit for generating a complete Hangul character by combining the recognized vowel and consonant stroke.

The foregoing is a somewhat broad summary of features and technical advantages of the present invention in order that those skilled in the art will be better able to understand it from the following detailed description of the present invention. Additional features and advantages of the present invention, which form the subject matter of the claims of the invention, in addition to those features and advantages, will be better understood from the following detailed description of the invention.

DETAILED DESCRIPTION Hereinafter, a detailed description of a preferred embodiment of the present invention will be described with reference to the accompanying drawings. Those skilled in the art will recognize that the disclosed concept and specific embodiments of the present invention described below may be changed or modified to achieve the technical problem to be achieved by the present invention. Moreover, one of ordinary skill in the art will recognize that the concepts and structures equivalent to the concepts and structures disclosed by the present invention do not depart from the spirit and scope of the broadest form of the present invention. It should be noted that reference numerals and like elements among the drawings are denoted by the same reference numerals and symbols as much as possible even though they are shown in different drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

2 is a diagram illustrating a configuration of a communication terminal according to an exemplary embodiment of the present invention.

Referring to FIG. 2, an RF unit (hereinafter referred to as “RF”) 210 performs wireless communication of a communication terminal. The RF unit 210 includes an RF transmitter for upconverting and amplifying a frequency of a transmitted signal, and an RF receiver for low noise amplifying and downconverting a received signal.

The modem (MOdulator-DEModulator) 215 includes a transmitter for encoding and modulating the transmitted signal and a receiver for demodulating and decoding the received signal.

The audio processor 225 may include a coder (Coder-DECoder). The codec includes a data codec for processing packet data and an audio codec for processing an audio signal such as voice. The audio processor 225 converts the digital audio signal received from the modem 215 into an analog signal through the audio codec to play through a speaker SPK or to output an analog audio signal input from a microphone MIC. It converts the digital audio signal through an audio codec and transmits it to the modem 215. The codec may be provided separately from the audio processor 225 or included in the controller 220.

The keypad 230 includes keys for inputting numeric and text information and function keys for setting various functions, and outputs a key input signal corresponding to a key input by the user to the controller 220. In the keypad of the present invention, vowel strokes 'ㅣ', '·', 'ㅡ' are assigned to the vowels for inputting Korean vowels, and consonant strokes 'ㄱ', 'ㄴ', 'ㅅ' for Korean consonant input. Keys assigned with ',' ㅇ ','-',' │ 'and', 'are provided. The keypad 230 may also include a function key such as a camera mode execution key, a video recording key, and an end key, an auxiliary key such as a special character key, and a numeric key.

The memory 235 may include a program memory for storing program data necessary for controlling the operation of the terminal, and a data memory for storing data generated during control or during execution by the user.

The controller 220 performs a function of controlling the overall operation of the terminal. The controller 220 may include the modem 215 and a codec. In particular, the controller 220 recognizes input consonant strokes and vowel strokes and controls the display unit 255 to combine the Hangul characters. The controller 220 controls to create a meaningful Hangul word when the consonant stroke and the vowel stroke are recognized and combined.

The camera unit 240 includes a camera sensor for capturing image data and converting the photographed optical signal into an electrical signal, and a signal processor for converting the analog image signal photographed from the camera sensor into digital data. The camera sensor is assumed to be a charge-coupled device (CCD) sensor, and the signal processor may be implemented by a digital signal processor. The camera sensor and the signal processor may be integrally implemented or may be separately implemented.

The signal processor 245 converts the video signal output from the camera unit 240 into an image signal. The signal processor 245 may be implemented with a digital signal processor (DSP). The analog video signal transmitted from the camera sensor (ie, a serial analog red-green (RED, GREEN, BLUE: hereinafter referred to as "RGB") signal) is digitally transmitted through an analog front end (AFE) chip of the signal processor 245. The converted, digitally converted 12-bit RGB signal is output as 8-bit YUV data. In general, the YUV data is classified into a Y component, which is a color of an image, and an index U and V component.

The image processor 250 performs a function of generating screen data for displaying an image signal output from the camera unit 240. The image processor 250 processes the image signal output from the camera unit 240 in units of frames, and outputs the image data according to the characteristics and size of the display unit 255. In addition, the image processor 250 includes an image codec and performs a function of compressing image data displayed on the display unit 255 in a set manner or restoring the compressed image data to original image data. The image codec may be a still picture (Joint Photographic Experts Group) codec, a moving picture Experts Group codec, a wavelet codec, or the like. It is assumed that the image processor 250 has an on-screen display function, and may output on-screen display data according to the screen size controlled and controlled by the controller 220.

The display unit 255 displays an image signal output from the image processor 250 on a screen and displays user data output from the controller 220. The display unit 255 may use a liquid crystal display (hereinafter referred to as "LCD"). In this case, the display unit 255 may include an LCD controller, a memory capable of storing image data, an LCD display device, and the like. It can be provided. When the LCD is implemented using a touch screen, the display unit 255 may operate as an input unit. The display unit 255 recognizes the input Hangul vowel stroke and the consonant stroke and displays the combined Hangul characters.

3 is a diagram illustrating a keypad of a communication terminal according to an embodiment of the present invention.

Referring to FIG. 3, vowel strokes' ㅣ ',' · ',' ㅡ 'corresponding to Cheonjiin are respectively assigned to the numeric keys' 1' '2' and '3' of the keypad 230, and the numeric keys' '4' is assigned to the consonant stroke 'a', '-' is assigned to the numeric key '5', and 'b' is assigned to the number '6'. Then, the consonant stroke '│' is assigned to the numeric key '7', the consonant stroke 'ㅅ' is assigned to the numeric key '8', the consonant stroke 'ㅇ' is assigned to the numeric key '9', and the numeric key ' 0 'is assigned a consonant stroke' ＼ '. The three keys to which the vowel traces' ㅣ ',' · 'and' ㅡ 'are assigned are called first group keys, and the consonant traces' ㄱ', 'ㄴ', 'ㅅ', 'ㅇ', ' Seven keys to which '-', '│' and '＼' are assigned are referred to as a second group key. In the present invention, the above-described assignment of vowels and consonant strokes will be described as an example, but this is only an example, and the vowel and consonant strokes may be assigned in various forms.

Meanwhile, the Hangul characters are generated by the combination of the vowel strokes and the consonant strokes. First, an example of configuring a consonant with the combination of the consonant strokes will be described.

Here, the consonant stroke means a minimum unit split to form consonants, and in the present invention, as described above, the seven units ('a', 'b', 'ㅅ', 'ㅇ', '-', '│ ',' ＼ ') Consists of consonant strokes. Among the seven consonant strokes, at least one consonant stroke is combined to include nineteen (a, b, c, d, k, k, k, k, k, k, k, k, k, k, k, k, k, k) 한글, ㅆ, ㅉ) Hangul consonants. In addition, the input consonant stroke constitutes a consonant according to the writing order. Then, a combination example of the consonant strokes for generating the 19 Korean consonants will be described with reference to Table 1 below.

Consonant Numeric keys Recognition A 4 A N 6 N            -, N 5, 6 C A,-, b  4, 5, 6 D │, a,- 7, 4, 5 ㅁ │, │,-,- 7, 7, 5, 5 ㅂ S 8 S ㅇ 9 ㅇ -, ㅅ 5, 8 I ＼,-, ㅅ 0, 5, 8 The A,- 4, 5 Lol -, N, - 5, 6, 5 I -, │, │,- 5, 7, 7, 5 The ＼,-, ㅇ          0, 5, 9 ㅎ A, a 4, 4 ㄲ -, B,-, b 5, 6, 5, 6 ㄸ │, │,-,-, │, │,-,-  7, 7, 5, 5, 7, 7, 5, 5 ㅃ ㅅ, ㅅ 8, 8 ㅆ         -, ㅅ,-, ㅅ         5, 8, 5, 8 ㅉ

For example, as shown in <Table 1>, in order to input the consonant 'ㅈ', the numerical keys '5' and '8' to which the consonant strokes '-' and 'ㅅ' are assigned, To input consonants 'ㅎ', input the numeric keys '0', '5' and '9' assigned to consonant traces '＼', '-' and 'ㅇ' respectively. . By doing this, Korean consonants are generated.

4 is a block diagram of a Hangul input device according to an embodiment of the present invention.

Referring to FIG. 4, the keypad 230 of FIG. 2 includes a function key 410, a vowel input key 420, a consonant input key 430, and an auxiliary key 440. The function key 410 generally includes a 'menu key' for displaying a list for selecting menus, a 'message key' for displaying a menu related to a message such as a color message, a text message, a text box, an emoticon box, It includes a confirmation key for selecting an item, a call key for a phone call, a cancel key for canceling, and an end key for ending. The function key 410 refers to keys that are set to have a function, and may be added / deleted / changed according to the purpose rather than being regularly determined. The vowel input key 420 corresponds to the first group key illustrated in FIG. 3 and is assigned to vowel strokes for inputting a vowel. In the present invention, the vowel strokes 'l', '·', '-' corresponding to Cheonjiin are assigned to the numeric keys 1, 2, and 3 of FIG. 3, respectively, and the keys are assigned to the vowel input key 420. Corresponding. The consonant input keys 430 correspond to the second group key shown in FIG. 3 and are assigned to consonant strokes for inputting consonants. In the present invention, the consonant strokes, 'a', 'b', 's', 'o', '-', '│', '＼' of the numeric keys '4', '5', '6', '7', '8', '9', and '0' are respectively assigned, and the keys correspond to the consonant input key 430. The auxiliary key 440 is a key to which a special character key is assigned. In the present invention, the direction keys (left and right arrow keys) are assigned to the '*' and '#' keys, respectively, and the keys correspond to the auxiliary key 440.

The controller 220 includes a vowel and consonant stroke recognition unit 450 and a Hangul character generator 460. The vowel stroke and the consonant stroke recognition unit 450 recognizes the vowel stroke and the consonant stroke of the Hangul input by the user's manipulation of the keypad 230. The Hangul character generator 460 generates Hangul characters by combining the vowel and consonant strokes recognized by the vowel and consonant stroke recognition unit 450. The Hangul characters generated by the Hangul character generation unit 460 are displayed through the display unit 255 and stored in the storage unit 235 for later use.

5A and 5B are flowcharts illustrating a process of generating Korean characters by inputting vowel stroke and consonant stroke according to an embodiment of the present invention.

Referring to FIG. 5A, the vowel stroke and the consonant stroke recognition unit 450 determines whether a consonant stroke for forming a consonant of the Hangul characters is input in step 510. If the consonant stroke is input, the Korean character generator 460 displays the input consonant stroke on the display unit 255 in step 515. In this case, the Hangul character generation unit 460 displays the input consonant stroke to generate consonants according to the configuration example of Table 1 in writing order. The vowel stroke and the consonant stroke recognition unit 450 checks whether the vowel stroke for constituting the neutrality of the Hangul characters is input in step 520. If the vowel stroke is input, the Hangul character generator 460 proceeds to step 525 to combine consonant strokes input in step 515 to form consonants. That is, after performing the initial combination, the process proceeds to step 530. If the vowel stroke is not input, the process returns to step 515 and the Hangul character generator 460 adds the input consonant stroke and displays it on the display unit 255. In operation 530, the Hangul character generator 460 displays the combined consonants on the display unit 255 as initial consonants. In operation 535, the vowel stroke and the consonant stroke recognition unit 450 check whether the consonant stroke is input.

Referring to FIG. 5B, when consonant stroke is input in step 535, the Hangul character generator 460 combines the vowel stroke input in step 520 and the initial consonant displayed in step 530 to form a consonant and a neutral. To achieve. If the consonant stroke is not input in step 535 of FIG. 5A, since the vowel stroke is input, the Hangul character generator 460 double-vowels the vowel stroke input in step 535 and the vowel stroke input in step 520. Configure The already entered and displayed initials remain unchanged. In operation 545, the Hangul character generator 460 displays the initial and neutral combinations combined in operation 540 on the display unit 255. In operation 550, the vowel stroke and the consonant stroke recognition unit 450 check whether the vowel stroke is input. If the vowel stroke is input in step 550, the Hangul character generation unit 460 determines whether to form a finality or the initial vowel of the input vowel in step 535 and combines the Hangul characters in step 555. do.

If the vowel stroke is not input in step 550, in step 560, the vowel stroke and the consonant stroke recognition unit 450 determines whether the consonant stroke is input. If consonant stroke is input in step 560, the process returns to step 545. The initials and neutrals already entered and displayed remain unchanged. If the consonant stroke is not input in step 560, in step 565, the vowel stroke and consonant stroke recognition unit 450 determines whether a direction key (arrow key) indicating an input position change is input. When the direction key is input, the Hangul character generator 460 configures the consonant stroke as the final consonant stroke if the consonant stroke is entered as the initial and neutral displayed in the step 545 or the input of the consonant stroke in the step 560. Complete the Hangul letters consisting of the initial, neutral, and final star. If the direction key is not input in step 565, the vowel stroke and consonant stroke recognition unit 450 determines whether an end key is input in step 575. If the exit key is entered, the Hangul input mode is exited. If the end key is not input in step 575, the process returns to step 550, and the vowel and consonant stroke recognition unit 450 determines whether vowel stroke is input.

For reference, although the deletion key is not described in the present invention, it is noted that a process of deleting a character or a stroke to be deleted is performed when the deletion key is input.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but is capable of various modifications within the scope of the invention. Therefore, the scope of the present invention should not be limited by the illustrated embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

As described above, the present invention can generate and display Korean characters composed of vowels and consonants while inputting vowel and consonant strokes displayed on the keypad of the communication terminal in the order of writing. There is also an advantage that can be easily used.

Claims (9)

In the Hangul input method in a communication terminal having a plurality of keys (key) for inputting Hangul, Receiving, by a user, at least one vowel stroke using a first group of keys to which vowel strokes for inputting Korean vowels among the plurality of keys are assigned; Receiving, by the user, at least one consonant stroke using a second group of keys to which consonant strokes for inputting Korean consonants among the plurality of keys are allocated; Recognizing the input vowel stroke and consonant stroke according to the Hangul writing order; Comprising the combination of the recognized vowel stroke and consonant stroke to generate a complete Hangul characters, Seven consonant traces 'ㄱ', 'ㄴ', 'ㅅ', 'ㅇ', '-', '│' and '＼' are assigned to the second group of keys. All of the seven consonant strokes are assigned to different keys. delete The method of claim 1, wherein in the recognizing process, the input consonant trace is recognized as shown in Table 2 below. . <Table 2> Consonant Recognition A A N N            -, N C A,-, b D │, a,- ㅁ │, │,-,- ㅂ S S ㅇ ㅇ -, ㅅ I ＼,-, ㅅ The A,- Lol -, N, - I -, │, │,- The          ＼,-, ㅇ ㅎ A, a ㄲ -, B,-, b ㄸ │, │,-,-, │, │,-,- ㅃ ㅅ, ㅅ ㅆ        -, ㅅ,-, ㅅ ㅉ 4. The Korean input method according to claim 1 or 3, wherein the vowels 'ㅣ', '·', and '-' are assigned to the keys of the first group, respectively. In the Hangul input device of the communication terminal, A keypad comprising a first group of keys to which vowel strokes for Hangul vowel input are assigned and a second group of keys to which consonant strokes for Hangul consonant input are assigned; A vowel and consonant stroke recognizing unit for recognizing at least one vowel stroke input through the key of the first group and at least one consonant stroke input through the key of the second group according to the Hangul writing order; Comprising the combination of the recognized vowel and consonant strokes Hangul character generation unit for generating a complete Hangul character, Seven consonant traces 'ㄱ', 'ㄴ', 'ㅅ', 'ㅇ', '-', '│' and '＼' are assigned to the second group of keys. All of the seven consonant strokes are assigned to different keys. delete The Hangul input device according to claim 5, wherein the vowel stroke and the consonant stroke recognition unit recognize the input consonant stroke as shown in Table 3 below. <Table 3> Consonant Recognition A A N N            -, N C A,-, b D │, a,- ㅁ │, │,-,- ㅂ S S ㅇ ㅇ -, ㅅ I ＼,-, ㅅ The A,- Lol -, N, - I -, │, │,- The          ＼,-, ㅇ ㅎ A, a ㄲ -, B,-, b ㄸ │, │,-,-, │, │,-,- ㅃ ㅅ, ㅅ ㅆ        -, ㅅ,-, ㅅ ㅉ 8. The Korean input device according to claim 5 or 7, wherein the vowels 'ㅣ', '·', and '-' are respectively assigned to the keys of the first group. delete

Images