KR20080070930A - Apparatus and method for inputing the korean alphabet in portable terminal - Google Patents

Abstract

A device and a method for inputting Hangul in a portable terminal are provided to enable a user to input Hangul through a touch screen of the portable terminal by dynamically changing a software keypad displayed on the touch screen depending on user operation. A touch screen outputs data for an area in which pen-down is generated by a user, pen staying time, a pen dragging area to a controller(200) when an Hangul input event occurs, and changes/displays a keypad according to control of the controller. The controller processes a function for changing consonant and vowel keypads according to the data received from the touch screen. The controller determines input of a double consonant by checking whether the pen staying time of the pen touching the touch screen exceeds a predetermined time when the consonant keypad is displayed in the touch screen. The controller determines to display the different vowel keypad from the current vowel keypad by checking a dragging position of the touching pen when the vowel keypad is displayed in the touch screen.

Description

Korean input method and device in a portable terminal {APPARATUS AND METHOD FOR INPUTING THE KOREAN ALPHABET IN PORTABLE TERMINAL}

1 illustrates a graphical keyboard layout in a portable terminal according to the prior art;

2 is a block diagram of a portable terminal according to the present invention;

3A and 3B illustrate a Hangul input procedure using a soft keypad of a touch screen in a portable terminal according to an embodiment of the present invention;

4 is a diagram illustrating a layout of a soft keypad in a portable terminal according to an embodiment of the present invention; and

5 is a diagram illustrating a Hangul input operation using a soft keypad of a touch screen in a portable terminal according to an embodiment of the present invention.

The present invention relates to a method and apparatus for inputting Hangul in a portable terminal, and more particularly, to a method and apparatus for inputting Hangul using a soft keypad in a portable terminal having a touch screen.

 Recently, portable terminals provide various functions and information processing functions for the convenience of users, and are also becoming small and light. According to the miniaturization trend of the portable terminal, it is difficult to provide various input keys. Accordingly, various methods for easily inputting information even in the miniaturization state have been researched and provided. As an example, a portable terminal using a touch screen as an input means is currently provided.

The portable terminal having the touch screen provides a function of inputting a character using the touch screen, that is, a function of inputting a character using a keyboard displayed on the touch screen.

As shown in FIG. 1, a portable terminal having a conventional touch screen uses a method of inputting characters by touching a pen with a keyboard almost replaced as it is on the touch screen. However, the above-described method has a problem that it is difficult for the user to select a key accurately because the size of the key is small because all keys must be displayed in the limited touch screen area of the portable terminal. In addition, since the arrangement of the keys is similar to a conventional keyboard for inputting characters using all of the fingers, there is a problem in that the input of characters with one pen is not efficient.

The present invention has been made to solve the above problems, an object of the present invention to provide a method and apparatus for inputting Hangul in a portable terminal.

Another object of the present invention is to provide a method and apparatus for inputting Korean by dynamically changing a soft keypad displayed on a screen of a touch screen in a portable terminal according to a user's operation.

According to the first aspect of the present invention for achieving the above object, the Hangul input method in a portable terminal, when the Hangul input event is generated, by displaying a consonant keypad on the touch screen consonants corresponding to the location where the pen down occurs Process of inputting a key, displaying a vowel keypad around the input consonant key, and inputting a vowel corresponding to the position at which the pen is dragged when the down pen is dragged to the vowel keypad Characterized in that it comprises a.

According to the second aspect of the present invention for achieving the above object, the Hangul input device in the portable terminal, the area where the pen down occurs by the user when the Hangul input event occurs, the time the pen stays and the pen Outputting data of the dragged area to the controller, and processing a touch screen for changing and displaying a keypad under control of the controller, and a function for changing a consonant keypad and a vowel keypad according to data input from the touch screen; It characterized in that it comprises a control unit.

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

Hereinafter, a method and apparatus for inputting Korean characters by dynamically changing a consonant key and a vowel key according to a user's operation by using a soft keypad in which a consonant and a vowel displayed on a touch screen are separated in a portable terminal will be described. .

2 is a block diagram of a portable terminal according to the present invention. In this case, the portable terminal includes a controller 200, a positioning unit 202, a touch screen 204, and a memory 206.

Referring to FIG. 2, the control unit (MPU: Micro-Processer Unit) 200 controls the overall operation of the portable terminal, and in addition to the normal function, the software displayed on the touch screen 204 according to the present invention. When a pen down (or touch) is generated on a key of a keypad, a function of combining a phoneme of Hangul is controlled by receiving a key of an area where the pen down is generated. Here, as illustrated in FIG. 4, the soft keypad refers to a keyboard layout displayed on the touch screen 204. The soft keypad is divided into a plurality of areas and mapped to a specific key value in each area. Therefore, the control unit 200 includes the positioning unit 202 to check the position where the pen down or the pen drag occurs on the soft keypad to combine the phonemes of the Hangul according to the key value mapped to the corresponding area. Control and handle the functions for entering characters. Here, the positioning unit 202 may check the key value mapped to the area where the pen down is generated by receiving coordinate data corresponding to the coordinate where the pen down is generated from the touch screen 204. .

In addition, when the pen down occurs in the consonant key displayed on the touch screen 204, the controller 200 checks whether the pen stays down to exceed the reference time, and exceeds the reference time. Converts to a corresponding consonant, and controls and processes a soft keypad conversion function that displays a vowel keypad around the pen-down consonant key as shown in FIG. 4B.

The touch screen 204 recognizes input information input from a user, converts the recognition result into data and outputs the data to the controller 200. That is, the touch screen 204 provides the controller 200 with the coordinate data of the pen down. Here, the data consists of spatial coordinate data applied from the user to the touch screen 204 and state data indicating whether the spatial coordinate data is continuously generated. The data is formed in a form that the controller 200 can recognize and process, and may include information of a specific area input by the user. In addition, the touch screen 204 displays the state information generated during the operation of the portable terminal, and by displaying the keypad of the consonant key and the vowel key under the control of the control unit 200 according to the present invention Display Hangul combined with input.

The memory 206 stores a program for controlling the overall operation of the portable terminal, temporary data generated during the operation of the portable terminal, system parameters and other storage data. In particular, the preset soft keypad is stored according to the present invention, and the soft keypad is dynamically changed according to a user's operation to store a program for combining and inputting Hangul.

3A and 3B illustrate a Hangul input procedure using a soft keypad of a touch screen in a portable terminal according to an exemplary embodiment of the present invention.

Referring to FIG. 3, when the Hangul input event occurs in step 301, the portable terminal proceeds to step 303 and displays a consonant keypad through the touch screen 204 as shown in FIG. 4A. In step 305, the portable terminal checks whether a pen down occurs in the consonant keypad by the user.

When the pen down occurs, the portable terminal proceeds to step 307 to check whether the pen down occurs and the time the pen stays exceeds a preset time. If the pen dwell time does not exceed a preset time, the portable terminal proceeds to step 311. On the other hand, when the time the pen stays exceeds a preset time, the portable terminal checks whether the consonant in the region where the pen is down is consonant capable of converting the consonant in step 309. If the key of the area where the pen-down has occurred is a consonant that is not condensed with the consonant, the portable terminal proceeds to step 311 and inputs a consonant corresponding to the pen-down location.

When the key of the pen down position is a consonant capable of converting the consonants, the portable terminal inputs a consonant corresponding to the consonant key of the pen down position in step 333. For example, when the pen down occurs and the time the pen stays exceeds a preset time and the consonant key at the position where the pen down occurs is any one of 'B, C, ㅂ, ㅅ, ㅈ', the consonant Enter the two consonants corresponding to 'ㄱ → ㄲ, ㄷ → ㄸ, ㅂ → ㅃ, ㅅ → ㅉ, ㅈ → ㅉ'.

In step 313, the portable terminal checks whether a pen up occurs by the user. If the pen up occurs, the portable terminal terminates the algorithm for the present invention.

On the other hand, when the pen up does not occur, the portable terminal proceeds to step 315 and displays a vowel keypad on the touch screen 204 as shown in FIG. 4B. In operation 317, the portable terminal determines whether the pen touched by the user is dragged on the touch screen 204. If the pen is not dragged, the portable terminal returns to step 313 to perform the following steps again.

On the other hand, when the pen is dragged, the portable terminal proceeds to step 319 to check the position where the pen is dragged, and in step 321 the key of the position where the pen is dragged is different from the displayed keypad. Check if the key is for display. Here, the other vowel key means a vowel key that is not displayed on the basic vowel key (Fig. 4B) as shown in Fig. 4C. If the key of the pen dragged position by the user is not a key for displaying another vowel key, that is, when the key of the pen dragged position is a key of the displayed vowel, the portable terminal performs step 329. Proceed to

On the other hand, when the key of the pen dragged position by the user is a key for displaying a vowel keypad other than the displayed keypad, the portable terminal proceeds to step 323, as shown in FIG. Display. In operation 325, the portable terminal determines whether the dragged pen is dragged back to the displayed collection key area. If the pen is not dragged again, the portable terminal returns to step 313 to perform the following steps again. On the other hand, when the pen is dragged again, the portable terminal proceeds to step 327 and checks the position where the pen is dragged.

Thereafter, the portable terminal inputs a vowel corresponding to the location identified in step 329, and proceeds to step 331 to check whether the Hangul input event ends. When the event does not end, the portable terminal returns to step 303 to perform the following steps again and when the event ends, the portable terminal terminates the algorithm according to the present invention.

For example, when the pen is down in the region 'a' as shown in FIG. 5a on the touch screen (FIG. 4a) where the consonant keypad is displayed, a key for inputting a vowel around the 'a' key is provided. Is displayed. Then, when the down pen is dragged to the 'ㅏ' area of the vowel key, 'ga' combined with the 'ㄱ' and 'ㅏ' is input. As another example, as shown in FIG. 5B on the touch screen (FIG. 4A) on which a consonant keypad is displayed, a pen is down in the 'AB' area and '+' (the vowel keypad other than the currently displayed keypad) is displayed. When dragged to an area), the displayed vowel keypad is displayed after being changed to another vowel keypad, and when the pen is dragged back to the 'ㅟ' area by the user, 'Ear' with 'ㅟ' combined is entered.

Here, the layout of the collection keypad may be changed and set by a user or a developer. The layout of the vowel keypad may be applicable to a method of rearranging the vowels according to the frequency of collection of each constellation in addition to the method of applying and displaying the same for all consonants as shown in FIG. 4B or 4C.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the present invention uses a soft keypad in which consonants and vowels are displayed on a touch screen in a portable terminal to dynamically change consonant keys and vowel keys according to a user's operation, thereby inputting Korean characters. Compared to this, the number of displayed keys can be increased to increase the utilization of the screen, and the pen movement distance is short, so that the user can input quickly, and the keyboard layout can be enlarged.

Claims (17)

In the Hangul input method in a portable terminal, When the Hangul input event occurs, displaying the consonant keypad on the touch screen to input the consonant key corresponding to the pen down location, Displaying a vowel keypad around the input consonant key; And when the down pen is dragged to the vowel keypad, inputting a vowel corresponding to the position at which the pen is dragged. The method of claim 1, The process of inputting the consonant key, Checking whether the pen down occurs and the time the pen stays exceeds a preset time; Inputting consonants of an area where the pen down occurs when the pen dwell time does not exceed a preset time; The method of claim 2, When the pen dwell time exceeds a preset time, determining whether the consonant in the pen-down area is consonant capable of double consonant deformation; And when the consonant is capable of modifying the consonant, inputting the corresponding consonant. The method of claim 3, wherein And when the consonant is impossible to modify the consonant, inputting a consonant in the pen-down region. The method of claim 3, wherein The consonant capable of modifying the consonant, characterized in that it comprises at least one of a, c, k, k, k. The method of claim 1, The inputting of the vowel may include: checking whether the pen-down is generated and the key of the dragged position is a key for displaying a vowel keypad other than the displayed keypad; Inputting the vowel of the dragged position when the key of the dragged position is not a key for displaying the other vowel keypad. The method of claim 6, Displaying the other vowel keypad when the key of the dragged position is a key for displaying the other vowel keypad; And when the pen is dragged again to another vowel keypad, inputting the vowel of the dragged position on the other vowel keypad. The method of claim 7, wherein And said other vowel keypad is a vowel key that is not displayed on said vowel keypad that is displayed by default. The method of claim 1, The layout of the vowel keypad can be set and changed by a user or a developer. In the Hangul input device in a portable terminal, When a Hangul input event occurs, data of an area where a pen down is generated by the user, a time that the pen stays, and an area where the pen is dragged is output to the controller, and the keypad is changed and displayed according to the control of the controller. With touch screen, And the control unit for processing a function for changing the consonant keypad and the vowel keypad according to data input from the touch screen. The method of claim 10, The controller may determine whether a double consonant is input when the consonant keypad is displayed on the touch screen by checking whether the pen stayed down on the touch screen exceeds a preset time. The method of claim 11, The controller may be configured to display a vowel keypad around the input consonant key when a pen down occurs and the consonant key is input. The method of claim 12, The controller may display the consonant keypad when the down pen is up while the vowel keypad is displayed. The method of claim 10, When the vowel keypad is displayed on the touch screen, the controller determines whether to display a vowel keypad other than the currently displayed vowel keypad by checking a dragged position of the pen down on the touch screen. Device. The method of claim 14, The controller may be configured to input a vowel at a position at which the pen is dragged when the down pen is dragged to the displayed vowel keypad. The method of claim 14, And the other vowel keypad is a vowel key not displayed on the vowel keypad displayed by default. The method of claim 14, The layout of the vowel keypad is device, characterized in that can be set and changed by the user or developer.

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