KR20030008873A - Word input method and a computer-readable recording medium with program for executing the method - Google Patents

Abstract

PURPOSE: A method for inputting a character through a keyboard automatic conversion is provided to input a word in an information terminal rapidly and conveniently by automatically changing a consonant/vowel active window and adopting an initial sound and vowel simultaneous input method according to an input order and an input time of a character for inputting the Korean alphabet. CONSTITUTION: If a user selects a predetermined consonant on a consonant plate of a terminal screen using a pen(201), a time recognition unit judges whether the pen is separated from the consonant(202). If the pen presses the consonant continuously, the time recognition unit controls a keyboard automatic conversion unit, and a corresponding candidate vowel keyboard is activated adjacent to the consonant(204). The user moves a trace to a wanted vowel on the corresponding candidate vowel keyboard on condition that the consonant is pressed(205). In the case that the wanted vowel is a diphthong and an additional trace movement is necessary(206), a trace of the initial sound and the medial sound are drawn, the trace is moved to the second vowel of the wanted diphthong(208), and combines a diphthong corresponded to the initial sound and the medial sound(209), and a character is combined(210). After the character combination, if the pen is separated from the keyboard(211), a consonant keyboard is activated(212). If the user selects a consonant corresponded to a final consonant(213), a completed Korean character is combined(214), and the combined character is output(215).

Description

Word input method and a computer-readable recording medium with program for executing the method}

The present invention relates to a method for inputting characters using a soft keyboard or a small keyboard in the field of mobile information terminals, and more particularly, to a method for inputting characters through automatic keyboard conversion and a computer recording a program for realizing the method. The present invention relates to a recording medium which can be read with.

Information input methods used in the existing information terminals include a soft keyboard method, handwriting recognition method, and voice recognition method.

In particular, portable information terminals have a small terminal size due to portability problems, and due to technical difficulties in implementing a speech recognition method and low speech recognition rate, generally, a method of inputting characters through a soft keyboard or handwriting (handwriting) ), A handwriting input method that recognizes and converts it into a data code is adopted.

Currently, the soft keyboard for the communication terminal adopts the same method as the keyboard configuration of a general desktop PC or a notebook PC. However, due to the narrow display, the keyboard is small in size, so that the readability is poor, the text input speed is slow, and the error probability is high. . In particular, the Hangul composition is divided into seconds, middle, and finality, so even when one word is clicked, a number of keyboard elements are required to be selected, thereby causing a problem in that the typing speed is delayed and an error probability is increased. Handwriting input method is superior to keyboard input method in terms of convenience of input, but when user's handwriting is not good, there is a problem that it takes much inconvenience and time to correct it when the terminal is recognized incorrectly because the recognition rate of terminal is not high. .

Therefore, the present invention is to solve such a conventional problem, focusing on the Hangul is composed of the elementary / middle / Jongseong, according to the input order and input time of the character through the user's handwriting of the consonant, vowel active window By adopting automatic conversion and simultaneous and neutral input methods, an information terminal provides a method for quickly and conveniently entering words and a computer-readable recording medium recording a program for realizing the method. For the purpose of

According to the first aspect of the present invention, when a user selects an arbitrary consonant on the terminal touch screen, the candidate collection keyboard is automatically activated around the consonant after a predetermined time.

According to the second aspect of the present invention, when a user moves a locus or pointing to a corresponding vowel (following a corresponding vowel) while selecting a consonant, the moving position of the locus (or pointing) is determined by determining the movement as a text input. It is characterized by calculating.

According to the third aspect of the present invention, when the pen is lifted off the keyboard of the screen after the initial and neutral input, the consonant keyboard is activated again, and if the user wants to input to the final without stopping at the initial and neutral, If you select the desired consonant within a certain time, the consonant is recognized as the final consonant and outputs one complete Korean character. If you do not select the consonant within a certain time, it is determined that you want to enter the consonant as the initial consonant of the character. The candidate vowel keyboard is again activated around the corresponding consonant.

Other features and advantages of the present invention will become apparent from the following detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings.

1 is a block diagram of a character input system implementing the method of the present invention

2 is an operation flowchart of the character input system of FIG.

3A and 3B illustrate consonants and vowels on a terminal touch screen according to the present invention.

4A to 4C illustrate a character input process through a trajectory recognition method according to an embodiment of the present invention.

5A to 5C illustrate a character input process through a pointing recognition method according to another embodiment of the present invention.

6 is a view showing an example of modifying the text Ogixie

* Description of the symbols for the main parts of the drawings *

101: consonant input unit 102: time recognition unit

103: keyboard automatic conversion unit 104: character input recognition unit

106: vowel input unit 105: character combination unit

1 is a block diagram of a character input system implementing the method of the present invention.

As shown, the character input system 100 includes: a consonant input unit 101 for selecting and inputting consonants from a consonant keyboard on a terminal touch screen using a dedicated pen; A time recognition unit 102 for recognizing a time when the consonant is selected in the consonant keyboard; If the recognized time is within a certain time, the consonant is output. If after the predetermined time, the candidate vowel corresponding to the consonant is automatically activated around the selected consonant. A keyboard automatic conversion unit 103 for activating the consonant keyboard; If there is a trajectory movement (or pointing to the vowel) on the candidate vowel keyboard from the selected consonant after the candidate vowel keyboard activation, the trajectory movement to the vowel (or pointing to the vowel) A character input recognition unit 104 for recognizing a character as a text input, and a character combination unit 105 for combining the recognized characters; A vowel input unit 106 for inputting a vowel; And a character output unit 107 which outputs the combined characters to the screen.

FIG. 2 illustrates an operation flowchart of the character input system 100 of FIG. 1, and illustrates an example in which a method of selecting a candidate collection corresponding to the consonants after selecting a consonant is a selection method through trajectory movement. .

First, when the user selects an arbitrary consonant on the consonant plate of the terminal screen using a dedicated pen (201), it is determined whether the pen is held on the consonant after selecting the consonant by the time recognizer (202). As a result of the determination, when the pen is lifted up from the consonant plate within a predetermined time, the consonant is recognized as a terminal sound (203) and the consonant is displayed on the screen as it is through the character output unit. If the pen is in the state of holding the consonant for more than a predetermined time, the time recognizer controls the keyboard automatic conversion unit, thereby activating the corresponding candidate vowel keyboard around the selected consonant (204). Subsequently, while the candidate vowel keyboard is positioned around the consonant, the user moves the track to the desired vowel on the candidate vowel keyboard while drawing the trajectory from the consonant while pressing the selected consonant with a pen. At this time, the character input recognition unit that recognizes the trajectory movement as the character input recognizes the initial and neutral at the same time by drawing the trajectory line between the first pressed point and the last pressed point on the corresponding vowel on the candidate vowel keyboard. If the vowel desired by the user has additional trajectory movement by vowel collection (206), the initial and neutral trajectories are drawn in the same manner as the above process, and then the trajectory is calculated by moving the trajectory to the second vowel of the desired vowel. The vowel vowels corresponding to the after (208) primary and the neutral are combined (209) and then the characters are combined (210). On the other hand, if the pen does not stand on the consonant in step 202, the consonant is recognized as a terminal sound, and if there is no additional trajectory movement in step 206, the vowel is recognized as a short vowel (207), and step 210 ) Will combine these characters.

Subsequently, after the letter combination is finished, it is determined whether the pen has floated on the keyboard (211), and if so, the consonant keyboard is activated (212). If the user wants to input to the finality without stopping at the initial and neutrality, if the desired consonant corresponding to the finality is selected within the consonant keyboard within a certain time (213), the consonant is recognized as the finality and combined with one complete Korean character. (214) This character is output (215). If the consonants are not selected within a certain time period, it is determined that the consonants are to be entered as the initial consonants of letters as in the first step, and the candidate vowel keyboard is activated again around the consonants to prepare a new word combination. If the pen is not held in step 211, the characters combined in step 210 are output as is in step 214.

The present invention can be applied to the flow chart of FIG. 2 even in the case of a pointing method rather than a trajectory movement method of selecting a corresponding vowel after selecting a consonant. In this case, the trajectory movement of FIG. 2 may be regarded as a pointing movement. Therefore, since the flow of the pointing method can be easily understood from FIG. 2, the flowchart of this case will be omitted.

3A and 3B illustrate specific examples of consonants and vowels in a terminal using a touch screen according to the present invention.

As shown in FIG. 3A, the consonant keyboard configuration can be configured easily by arranging frequently used consonants around the keyboard. In addition, if you want to input only the vowels, the vowel keyboard is activated by selecting the 'vowel keyboard conversion key' located at the lower left of the consonant keyboard layout so that only the vowels can be input.

As shown in FIG. 3B, the vowel keyboard configuration is configured to reduce the input speed by minimizing the length of the trajectory in consideration of the order of the vowels most used around the selected consonants and the intuitive arrangement of the habits of the writing input. In addition, if the user wants to input the horn, the horn keyboard is located at the upper left of the candidate vowel keyboard activated after a predetermined time after selecting the consonant corresponding to the horn.

4A to 4C are exemplary views of actually generating words through a trajectory recognition method in a terminal using a touch screen according to the present invention.

As shown in FIG. 4A, when 'O' is input on the touch screen, pressing 'ㅇ' on the consonant keyboard controls the automatic conversion window of the active window in the time recognition unit, and thus the candidate collection keyboard is displayed around 'ㅇ' after a certain time. Is activated. As shown in FIG. 4B, when the trajectory is moved to the lower right 'ㅗ' keyboard while holding 'ㅇ' and the pen is lifted from the keyboard, the trajectory recognition unit selects a starting point and an end point from the trajectory of the consonant 'ㅇ' and the collection 'ㅗ', respectively. It is recognized as the initial and the neutral, and the letter combination unit combines these consonants and vowels and outputs 'o'.

As shown in FIG. 4C, when a 'why' is to be input, as in the above process, the trajectory is moved to 'ㅐ' located at the upper right of the candidate collection keyboard without ending the trajectory moved from 'O' to 'ㅗ'. To extend. In this process, the trajectory recognizer recognizes the inflection point as a double vowel and calculates the three inflection points in the trajectory as follows. That is, the first point is recognized as 'ㅇ', the second inflection point as a vowel 'ㅗ', and the last point as a vowel 'ㅐ'.

5A through 5C are exemplary views of actually generating a word through a pointing recognition method rather than the trajectory recognition method in FIGS. 4A to 4C.

As shown in FIG. 5A, when 'O' is input on the touch screen, pressing 'ㅇ' on the consonant keyboard controls the automatic conversion window of the active window in the time recognition unit, and the candidate collection keyboard is displayed around 'ㅇ' after a certain time. Is activated. As shown in FIG. 5B, when the pen is removed from the keyboard while pressing 'ㅇ', the controller recognizes this as a continuous point and activates the point recognition unit when the keyboard points to the lower right keyboard within a predetermined time. The point recognizer recognizes the starting point and the ending point as the initial and neutral, respectively, in the same manner as the trajectory recognizer in FIG.

As shown in FIG. 5C, when inputting 'why', the pointer 'ㅗ' is pointed to 'ㅇ' in the same manner as the above process, and then click 'ㅐ' located at the upper right of the candidate collection keyboard, and the control unit continuously Activate point recognition by recognizing it as a traditional point. After recognizing the location of the three selected keyboards, the point recognition unit regards the vowels as a vowel vowel, and recognizes the first point among the three points as the consonant 'ㅇ', the second as the vowel 'ㅗ', and the last point as the vowel 'ㅐ'.

FIG. 6 illustrates an example of correcting a case in which a character is incorrectly input or a direction of a trajectory is drawn incorrectly due to a shaking of a pen while a user inputs a character.

If the user incorrectly enters a character and wants to correct it, clicking the Edit or Delete private key, such as backspace (BS), will cause the consonant support to correct the word that was being entered, that is, the last word entered. In the case, only the base is deleted, and in the case of the words of the initial and neutral, the initial and the neutral are deleted at the same time. Except for the last word entered, it is removed by one letter unit in the same way as a normal keyboard. For example, if you want to input 'simple', if you wrongly selected the keyboard and entered 'Ganden', if you click BS, only 'b' consonant is erased if there is consonant support as above. If you click on the BS again, the initial and neutral are deleted at the same time. That is, all of 'more' is erased. After that, select 'c' in the consonant keyboard and re-enter it. If you want to delete all the 'gandan' in the above process, if you click the BS once more, 'gan' which is one letter unit is deleted at once.

Alternatively, if you want to delete a vowel rather than deleting both the initial and the neutral, press the BS for a while and then modify the vowel in the active candidate vowel keyboard. For example, if you click the BS in 'Gunden' to erase the consonant 'n' and then select the BS for a certain time, the time recognizer creates a candidate collection keyboard around the BS and erases only the collection 'ㅓ'. From 'Gan', select 'ㅏ' from the candidate collection keyboard around the BS. In addition, if you want to delete or modify a sentence, you can block the sentence with a pen and press BS or enter the letter you want to write.

As described above, by allowing the user to input the initial and neutral on the soft keyboard at the same time on the terminal using the touch screen, the input speed and convenience are improved by solving the problems caused by the large number of input strokes and the large number of keyboards, which are problems of the current soft keyboard method. Can be. In addition, the consonant window and the vowel window can be separated to minimize the number of keyboards to reduce the physical interface, and the frequently used vowels on the selected consonant window can be placed around to minimize the movement of the user's hand on the touch screen to speed up the text input. Can promote it.

Although the present invention has been described with reference to the exemplary embodiments, it is not intended to limit the scope of the present invention only to the above embodiments. For example, the present invention can be usefully applied not only to Hangul but also to input characters in a foreign language system similar to the Hangul structure. It will be readily apparent to those skilled in the art that various other applications are possible without departing from the spirit and scope of the invention. Accordingly, the invention should be construed comprehensively within the scope of the appended claims.

Claims (9)

Character input method through automatic keyboard conversion on the touch screen of the information terminal, Calculating a press time of the consonant after selecting any consonant; Outputting the consonants when the calculated time is within a predetermined time, and automatically activating candidate vowel keyboards corresponding to the selected consonants after the predetermined time; Recognizing the movement as a text input and calculating a movement position when the candidate vowel keyboard is activated and then moved from the selected consonant to the corresponding vowel on the candidate vowel keyboard; Determining whether or not the character input is terminated; Outputting a corresponding character upon determining termination of the character input, and inputting a character by continuously recognizing character movement when determining that the character input is not finished; Character input method comprising the step of activating the initial consonant keyboard. The method of claim 1, The movement from the selected consonant to the corresponding vowel is characterized in that the movement through the trajectory. The method of claim 1, Character input method, characterized in that the movement from the selected consonant to the vowels through a pointing movement. The method of claim 1, And the character input method is switched to the short vowel selection mode when the character input is terminated. The method of claim 1, The character input method of claim 2, wherein the determination is made when the character input is not finished. The method of claim 1, Character input method further comprises a consonant selection step within a certain time after the initial consonant keyboard activation. The method of claim 6, And a candidate vowel keyboard is activated around the consonants after a predetermined time after the consonant is selected. As a computer-readable recording medium that records a program for realizing a character input method through automatic keyboard conversion on a touch screen, Calculating a pressing time of the consonants after selecting any consonants; Outputting the consonants when the calculated time is within a predetermined time, and automatically activating candidate vowel keyboards corresponding to the selected consonants after the predetermined time; A function of recognizing the movement as a text input and calculating a movement position when the candidate vowel keyboard is activated and then moved from the selected consonant to the corresponding vowel on the candidate vowel keyboard; Determining whether or not the character input is terminated; Outputting the corresponding character upon determining the end of the character input, and inputting the character by continuously recognizing the character movement when the character input is not terminated; A computer-readable recording medium having recorded a program including a function for activating an initial consonant keyboard. In the character input method of an information terminal, when a consonant (vowel) is selected, a vowel keyboard corresponding to the consonant (vowel) is automatically activated around the selected consonant (vowel). Character input method characterized in that.