KR20120066255A - Method and apparatus for inputting a message using multi-touch - Google Patents

Method and apparatus for inputting a message using multi-touch Download PDF

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Publication number
KR20120066255A
KR20120066255A KR1020100127502A KR20100127502A KR20120066255A KR 20120066255 A KR20120066255 A KR 20120066255A KR 1020100127502 A KR1020100127502 A KR 1020100127502A KR 20100127502 A KR20100127502 A KR 20100127502A KR 20120066255 A KR20120066255 A KR 20120066255A
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KR
South Korea
Prior art keywords
touch
input
character
key
area
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KR1020100127502A
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Korean (ko)
Inventor
김학주
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삼성전자주식회사
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Priority to KR1020100127502A priority Critical patent/KR20120066255A/en
Publication of KR20120066255A publication Critical patent/KR20120066255A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • G06F3/0233—Character input methods
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04886—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04104—Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/048—Indexing scheme relating to G06F3/048
    • G06F2203/04808—Several contacts: gestures triggering a specific function, e.g. scrolling, zooming, right-click, when the user establishes several contacts with the surface simultaneously; e.g. using several fingers or a combination of fingers and pen

Abstract

PURPOSE: A character input method which uses multi-touch is provided to easily input a character and to increase the convenience of character input. CONSTITUTION: If a character input mode is processed, a control unit outputs a character input screen(201,205). If the character input mode is not processed, the control unit performs a corresponding function(203). A first touch about a keypad area is generated and the control unit inputs the corresponding character in a character area(207,209,213). If there is a touch release event, the control unit confirms the completion of the character input mode(215,217).

Description

Character input method and device using multi-touch {METHOD AND APPARATUS FOR INPUTTING A MESSAGE USING MULTI-TOUCH}

The present invention relates to a character input method and apparatus, and more particularly, to a character input method and apparatus using a multi-touch.

Recently, due to the remarkable development of information and communication technology and semiconductor technology, the spread and use of portable terminals is increasing rapidly. In particular, recent portable terminals have reached the stage of mobile convergence that encompasses the range of other terminals instead of staying in their own traditional areas. In the case of a mobile communication terminal, in addition to general communication functions such as voice call and message transmission and reception, a TV viewing function (for example, a mobile broadcast such as Digital Multimedia Broadcasting (DMB) or Digital Video Broadcasting (DVB)) and a music playback function (for example, It provides various functions such as MP3 (MPEG Audio Layer-3), picture taking function, data communication function and internet connection function.

On the other hand, due to the trend toward miniaturization and slimming of portable terminals and ease of input, interest in touch screens is increasing. The touch screen may simultaneously perform the functions of an input device and a display device. The conventional text input method using the touch screen uses a method of outputting a virtual keypad including a plurality of key areas on a screen and inputting a letter assigned to each touched key area. However, due to the small size of the portable terminal, a key area assigned to one letter is small, and thus, it is difficult to accurately input a letter. In other words, in the conventional touch input method, when a character to be input does not correctly touch a key area to which the character is to be input, surrounding characters may be input. For this reason, there is an inconvenience in that the user needs to check whether the user inputs exactly one letter and corrects the wrong character.

Therefore, the present invention was devised to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a method and apparatus for inputting a character using multi-touch which can prevent an error of character input through a virtual keypad.

Another object of the present invention is a method and apparatus for inputting a character using multi-touch to input a selected character on the virtual keypad by touching an input determination key for confirming the input of the character in a state of selecting (touching down) the character on the virtual keypad. To provide.

Character input method using a multi-touch according to an embodiment of the present invention for achieving the above object is a character input including a keypad area for displaying a virtual keypad and a text area for displaying the input character when the character input mode is executed Displaying a screen; Generating a touch down event in one of the key areas of the virtual keypad; Checking whether a touch event occurs in an input confirmation key for determining input of a character while the touch down event is maintained; And when a touch event occurs in the input confirmation key, inputting a character assigned to the key area where the touch down event occurs in the text area.

Character input device using a multi-touch according to another embodiment of the present invention for achieving the above object includes a keypad area for displaying the virtual keypad and the character area for displaying the input character when the character input mode is executed A touch screen displaying a text input screen; And when a touch down event occurs in one of the key areas of the virtual keypad, whether a touch event occurs in an input confirming key for confirming an input of a character while the touch down event is maintained, and a touch event in the input confirming key. And a controller for inputting a character assigned to the key area where the touch down event has occurred, to the text area.

As described above, the character input method and apparatus using the multi-touch according to the embodiment of the present invention can prevent the error of character input and can be easily input. Accordingly, the present invention can improve the convenience and efficiency of character input in a mobile terminal including a touch screen.

1 is a block diagram schematically illustrating a configuration of a portable terminal according to an exemplary embodiment of the present invention.
2 is a flowchart illustrating a text input method using multi-touch according to an exemplary embodiment of the present invention.
3 is an exemplary screen illustrating a text input screen according to an exemplary embodiment of the present invention.
4 is an exemplary view illustrating a text input method using multi-touch according to a first embodiment of the present invention.
FIG. 5 is a diagram illustrating a screen for describing a method of displaying a text during a touch movement according to an exemplary embodiment of the present invention. FIG.
6 is a diagram illustrating a screen for explaining a text input method using multi-touch according to a second embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that, in the drawings, the same components are denoted by the same reference numerals as possible. Further, the detailed description of known functions and configurations that may obscure the gist of the present invention will be omitted.

It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of the present invention in order to facilitate the understanding of the present invention and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

Prior to the detailed description, the mobile communication terminal will be described as an example. However, the present invention is not limited thereto. That is, the present invention can be applied to any device including a touch screen capable of multi-touch recognition. For example, the present invention is applicable to a tablet PC (Tablet Personnel Computer), a portable multimedia player (PMP), a navigation terminal, a smart phone, an electronic book terminal, an electronic dictionary terminal, and the like.

Hereinafter, "touch down" refers to a state in which a touch input device such as a user's finger or a stylus pen is in contact with the touch panel, and "touch movement" refers to moving a contact position after the touch down. Release "means release the contact on the touch panel. Meanwhile, the touch down, touch movement, and touch release will be collectively described as touch events.

1 is a view schematically showing the configuration of a portable terminal 100 according to an embodiment of the present invention.

Referring to FIG. 1, the mobile terminal 100 according to an exemplary embodiment of the present invention includes a controller 110, a storage unit 120, a touch screen 130, a wireless communication unit 150, and an audio processor 160. can do. The touch screen 130 may include a touch panel 131 and a display panel 132.

The portable terminal 100 having the above configuration outputs a text input screen including a keypad area for displaying a virtual keypad and a text area for displaying a character input through the virtual keypad to the touch screen 130 when the text input mode is activated. In addition, a touch down event (hereinafter referred to as a first touch) occurs in a key region of the virtual keypad, and a touch (hereinafter referred to as second touch) occurs in an input confirmation key for confirming a text input while the first touch is maintained. In this case, the character selected by the first touch may be input to the character input area. In addition, when a touch occurs on the input determination key after the touch movement without the first touch being released, the portable terminal 100 may input a character assigned to the touch-moved key region. That is, the present invention can continuously input characters through the touch movement and the touch of the input confirmation key. In the present invention as described above, since the character is input only when the input determination key is touched (second touch), when the correct position is not touched, the character to be inputted as in the related art is touched by touching the input determination key after correction through touch movement. Character input errors caused by not correctly touching the assigned key area and the inconvenience of having to delete the input characters can be prevented. In addition, the present invention enables users who are not used to text entry through the virtual keypad to enter text quickly and easily. Hereinafter, each configuration of the mobile terminal 100 will be described in detail.

The wireless communication unit 150 may form a call channel for a call (including a voice call and a video call) and a data communication channel for data transmission with the base station. For example, the wireless communication unit 150 may transmit a voice signal and a video signal to the counterpart terminal under the control of the controller 110, or may receive a voice signal and a video signal from the counterpart terminal. The wireless communication unit 150 includes a radio frequency transmitter (not shown) for frequency up-conversion and amplification of a transmitted signal, a radio frequency receiver (not shown) for low noise amplification and a frequency down-conversion of a received signal, and a received signal and a transmission signal. It may include a transmission and reception separation unit (not shown) for separating the. In particular, the wireless communication unit 150 according to the present invention may transmit a text message input to other terminals using multi-touch. Meanwhile, when the portable terminal 100 does not include a text transmission function, the wireless communication unit 150 may be omitted.

The audio processor 160 may transmit an audio signal to a speaker SPK or an audio signal input from a microphone MIC to the controller 110. That is, the audio processor 160 converts the analog voice signal input from the microphone MIC into a digital voice signal and transmits the digital voice signal to the controller 110, or converts the digital voice signal into an analog voice signal to the speaker SPK. ) For example, the audio processor 160 may output a key input sound pre-stored in the storage 120, another effect sound for executing a function, and a music file (for example, an MP3) play sound. In particular, the audio processor 160 according to the present invention may output an effect sound indicating that the character input is confirmed when the character selected by the first touch is determined by the second touch through the speaker SPK.

The touch screen 130 may perform a screen output function and a touch input function. To this end, the touch screen 130 may include a touch panel 131 and a display panel 132.

The touch panel 131 is mounted on the front surface of the display panel 132, and when a touch event occurs, the touch panel 131 detects a change in physical quantity (eg, resistance, capacitance, light blocking, etc.) accordingly and detects a touch event occurrence. have. The touch panel 131 may convert a change in physical quantity according to a touch event into a digital signal and transmit it to the controller 110. The touch event may include a touch down event, a touch movement event, and a touch release event. In particular, the touch panel 131 according to the present invention can recognize a multi-touch. The touch panel 131 may be formed in various ways such as capacitive type, resistive film type, and infrared type.

The display panel 132 displays various menus of the mobile terminal 100, information input by the user, or information for providing the information to the user. For example, the display panel 132 may provide various screens according to the use of the mobile terminal 100 such as a standby screen, a message writing screen, a call screen, and the like. In particular, the display panel 132 according to the present invention may provide a character input screen for inputting characters using multi-touch under the control of the controller 110. A detailed description of the character input screen will be described with reference to the screen examples of FIGS. 3 to 6 to be described later. The display panel 132 may be formed of a liquid crystal display, an organic light emitting diode (OLED), an active matrix organic light emitting diode (AMOLED), or the like.

The storage unit 120 may store a user data, including a program necessary for operating a function according to an embodiment of the present invention. The storage unit 120 may largely include a program area and a data area. The program area may include a program for controlling the overall operation of the mobile terminal 100, an operating system (OS) for booting the mobile terminal 100, an application required for multimedia content playback, and other options of the mobile terminal 100 ( Options) function, for example, a camera function, a sound playback function, an image or a video playback function, a short-range wireless communication function, and the like can be stored. In particular, the program area according to the present invention may store a character input program for selecting a character through a first touch and controlling a character input using multi-touch for determining a character input through the second touch.

The data area is an area in which data generated according to the use of the portable terminal 100 is stored, and may store audio data, corresponding content, information corresponding to user data, key map information of a virtual keypad, and the like. In particular, the data area according to the present invention can store the display position of the input confirmation key set by the user. Accordingly, the present invention can improve convenience for each user in touching the input confirmation key.

The controller 110 may control an overall operation of the mobile terminal 100 and a signal flow between internal blocks of the mobile terminal 100. In particular, the controller 110 according to the present invention may control a text input process using multi-touch. In detail, when the text input mode is activated, the controller 110 may output a text input screen for inputting text to one side of the touch screen 130. The text input screen may include a text area in which an input text is displayed and a keypad area in which a virtual keypad for text input is output. One side of the keypad area may include an input confirmation key for confirming a character input. Alternatively, the input confirmation key may be output by being overlaid on a position adjacent to the touched key area when a touch occurs in the key area of the virtual keypad. The virtual keypad is preferably a Qwerty system in which one letter is assigned to one key area.

The controller 110 detects a touch down event (first touch) in the virtual keypad area and when a touch event (second touch) occurs in an input confirmation key, that is, when a multi-touch is detected, the touched key area. Characters assigned to can be entered in the character area. In this case, when a touchdown event is detected on the virtual keypad, the controller 110 may enlarge a character assigned to the corresponding key area and output the enlarged character to a position adjacent to the touched key area. In addition, the controller 110 may virtually input a character assigned to the touched key region into the character region. This is to prevent a problem in which the key area touched by the user's finger or the touch input device is hidden and is hard to be seen, and for the user to easily identify the currently touched character. In this case, the controller 110 may differently display at least one of a text, color, contrast, and size of the virtually input text.

When the second touch is detected after the touch movement of the first touch, the controller 110 may input a character assigned to the key region according to the touch movement into the character region. That is, when the user fails to accurately touch the key area to which the character to be input is assigned, the user may accurately input the character to be input by performing a second touch after correction through touch movement. In addition, the user may input a plurality of characters by performing a second touch after a touch movement to a key region to which the next character is assigned, without releasing the first touch after inputting one character.

As described above, the portable terminal 100 according to the present invention can confirm the input of the character after confirming that the character to be input is correctly selected, thereby preventing an error in character input caused by an incorrect touch. That is, the present invention can improve the efficiency of character input.

Although not shown in FIG. 1, the portable terminal 100 according to the present invention includes a camera module for capturing an image or a video, a broadcast receiving module for receiving a broadcast, a digital sound source reproducing module such as an MP3 module, and a short range wireless for short range wireless communication. Optionally, the apparatus may further include components for providing additional functions such as a communication module and a proximity sensor module for proximity sensing. These components may not be enumerated because all of them vary according to the convergence trend of digital devices. However, the mobile terminal 100 according to the present invention may further include components of the same level as those mentioned above. It may include.

2 is a flowchart illustrating a text input method using multi-touch according to an exemplary embodiment of the present invention, and FIG. 3 is a screen diagram illustrating a text input screen according to an exemplary embodiment of the present invention.

1 to 3, the controller 110 may check whether the text input mode is executed in step 201. The text input mode may include a short message (SMS) writing mode, a memo writing mode, an e-mail writing mode, and the like. If the text input mode is not executed, the controller 110 may perform a corresponding function in step 203. For example, the controller 110 may perform a video call function, a music play function, a digital broadcast reception function, etc. according to a user's request. In contrast, when the text input mode is executed, the controller 110 may output a text input screen in step 205. For example, as shown in FIG. 3, the text input screen includes an indicator area 31 indicating an icon of a battery level, a ring tone setting (vibration, silence, etc.) state, a reception sensitivity, and the like, and a text in which the input text is displayed. The area 32 may include a keypad area 33 on which a virtual keypad for text input is displayed, and a menu area 34 for selecting an additional menu for text input. The input confirmation key 10 for confirming the input of the touched character is output between a predefined location, for example, the keypad area 33 and the menu area 34, as shown in the screen example of the identification code 310, or the screen of the identification code 320. As illustrated, the output may be overlaid on a position adjacent to the touched key region. When the input confirmation key 10 is set to be output at a position adjacent to the touched key area as illustrated in the screen example of the identification code 320, the input confirmation key 10 may be removed when the touch of the keypad area 33 is released. .

In operation 207, the controller 110 may check whether a touch down event (first touch) occurs in the keypad area 33. If the first touch does not occur in step 207, the controller 110 may proceed to step 217 to be described later. In contrast, when the first touch occurs in step 207, the controller 110 may check whether a touch event (second touch) of the input determination key 10 for confirming the input of the selected character occurs in step 209. . If the second touch does not occur in step 209, the controller 110 may check whether a touch movement event of the first touch occurs in step 211. If the touch movement event does not occur in step 211, the controller 110 may proceed to step 215 described later. On the other hand, if the touch movement event occurs in step 211, the control unit 110 may return to step 209. That is, when a touch movement event occurs, the controller 110 may determine whether input of a character assigned to the moved key region is confirmed.

Meanwhile, when the second touch event occurs in step 209, the controller 110 may input the corresponding character (character assigned to the key area corresponding to the first touch or touch movement) to the character area 32 in step 213. Can be. Next, the controller 110 may check whether a touch release event occurs in the keypad area 33 in step 215. If the touch release event does not occur, the controller 110 may return to step 209. On the other hand, when a touch release event occurs, the controller 110 may check whether the text input mode ends in step 217. If the text input mode is not terminated, the controller 110 may return to step 207 to repeat the above-described process. On the other hand, when the text input mode ends, the controller 110 may end the text input. At this time, although not shown, the control unit 110 receives a contact (eg, a phone number, an e-mail address, etc.) of at least one other terminal to which the inputted character is to be transmitted after completing the character input and transmits the created character to the other terminal. You can do more.

In the above, the character input method using the multi-touch according to an embodiment of the present invention has been described. Hereinafter, a character input method using multi-touch according to an embodiment of the present invention will be described in more detail with reference to the screen illustration.

4 is an exemplary view illustrating a text input method using multi-touch according to a first embodiment of the present invention. Hereinafter, a case in which the input confirmation key 10 is output at a position adjacent to the touched key area will be described as an example.

1 to 4, when the text input mode is executed, the touch screen 130 may output a text input screen. Thereafter, when the key area to which the letter "c" is assigned is touched, as shown on the screen of identification code 410, the touch screen 130 moves an input confirmation key 10 adjacent to the letter "c" to confirm the letter input. Can output to the location. In this case, the touch screen 130 may enlarge and output the letter “c” assigned to the touched key area as an identification code 20 to compensate for the problem that the touched character is hidden by the finger or the touch input device. Can be. When the input confirmation key 10 is touched while the letter “c” is touched, that is, when the letter “c” and the letter input key 20 are multi-touched, the touch screen 130 is a screen example of identification code 420. As shown in FIG. 3, under the control of the controller 110, the letter “c” may be input to the text area 32.

Next, when the user performs a touch movement to an area to which the letter "a" is assigned in the same state as the identification code 420, the touch screen 130 may display the letter "a" as shown in the screen example of the identification code 430. Can be enlarged and outputted, and the input confirmation key 10 can be moved to be adjacent to the letter " a ". After the user touches the key area to which the letter “a” is assigned, the user touches the input confirmation key 10 as shown in the screen example of the identification code 440. Then, the touch screen 130 of the controller 110 Under control, the letter “a” can be entered in the character area 32. As described above, the present invention may input text through a first touch event (touch down, touch movement) occurring in the keypad area 33 and a second touch event occurring in the input confirmation key 10. As described above, when the character selected through the input confirmation key 10 is input to the character area 32, an incorrect touch, that is, when the key area to which the character to be input is not accurately touched, is touched without touching the adjacent key area. Character input errors that occur can be prevented.

FIG. 5 is a diagram illustrating a screen for describing a method of displaying a text during a touch movement according to an exemplary embodiment of the present invention. FIG.

1 to 5, when the user touches a key area to which a letter “c” is assigned in the text input screen, the touch screen 130 determines input as shown in a screen example of an identification code 510. The image 20 enlarged and output of the letter "c" assigned to the key 10 and the touched key is output adjacent to the key area to which the letter "c" is assigned, and the letter "touched to the letter area 32 is displayed. c "can be entered virtually. In this case, the touch screen 130 may output a cursor at the bottom of the letter "c" to notify the user that the letter "c" is not actually input but is virtually input. Alternatively, the touch screen 130 may output at least one of the color, contrast, and size of the character “c” output to the character area 32 differently from the actually input character.

When a touch movement occurs to a key area to which the letter “a” is assigned in the same state as the screen example of the identification code 510, the touch screen 130 may include the text area 32 as shown in the screen example of the identification code 520. ) Can be changed to the letter "a" assigned to the touch-moved key area. At this time, since the letter "a" is virtually input state, the cursor is located at the bottom of the letter "a". In addition, when the touch movement occurs to an area to which the letter “t” is assigned as shown in the screen illustration of the identification code 530 in the same state as the screen illustration of the identification code 520, the touch screen 130 may include the text area 32. ) Can be output by changing the letter "a" virtually inputted into the letter "t". As described above, the present invention virtually displays the characters selected according to the touch movement occurring in the virtual keypad region 33 in the character region 32, so that the user can easily recognize the selected characters. Therefore, the present invention can determine the character input after confirming the selected character can improve the user's convenience when entering the character.

6 is a diagram illustrating a screen for explaining a text input method using multi-touch according to a second embodiment of the present invention.

1 to 6, when a touchdown event occurs in a key area to which a letter “c” is assigned as shown in the screen example of the identification code 610, the touch screen 130 determines the text input. The input confirmation key 10 and the image 20 in which the letter “c” is enlarged may be output to a position adjacent to the key area to which the letter “c” is assigned. In addition, unlike the first embodiment, the second embodiment of the present invention may virtually input the touched letter “c” into the text area 32. In this case, the touch screen 130 may display a cursor at the bottom of the letter “c” to indicate that the letter is virtually input as described above with reference to FIG. 5.

When the input confirmation key 10 is touched as shown in the screen example of the identification code 620 in the state in which the letter "c" is virtually input in the letter area 32, that is, the letter "c" and the letter input key. When the 20 is multi-touched, the touch screen 130 may input the letter “c” into the text area 32 under the control of the controller 110. In this case, the touch screen 130 may display a cursor on the right side of the letter “c” to indicate that the letter “c” is actually input.

Next, when the user performs a touch movement to the area to which the letter "a" is assigned in the state of the identification code 620, the touch screen 130 is the letter "a" as shown in the screen example of the identification code 630. Can be virtually input to the character area 32. At this time, since the letter "a" is a virtual input state, the cursor is located at the bottom of the letter "a". Subsequently, when the user touches the input confirmation key 10 as shown in the screen example of the identification code 640, the touch screen 130 displays the letter “a” under the control of the controller 110. You can type in When the input of the letter "a" is confirmed, the touch screen 130 may output the cursor to be located to the right of the letter "a".

The character input method using the multi-touch according to the embodiment of the present invention as described above is implemented in the form of program instructions that can be executed by various computer means can be recorded in a computer-readable recording medium. In this case, the computer-readable recording medium may include a program command, a data file, a data structure, etc. alone or in combination. On the other hand, the program instructions recorded on the recording medium may be those specially designed and configured for the present invention or may be available to those skilled in the art of computer software.

The computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs, DVDs, and magnetic disks such as floppy disks. -Magneto-Optical Media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. In addition, program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention.

In the above description of the preferred embodiments through the specification and drawings with respect to the character input method and apparatus using a multi-touch according to an embodiment of the present invention, although specific terms are used, it is only easy to describe the technical content of the present invention And only to be used in a general sense to help understand the invention, the present invention is not limited to the above-described embodiment. That is, it is apparent to those skilled in the art that various embodiments based on the technical idea of the present invention are possible.

100: mobile terminal 110: control unit
120: storage unit 130: touch screen
131: touch panel 132: display panel
150: wireless communication unit 160: audio processing unit
10: input confirmation key

Claims (13)

In the character input method using multi-touch,
Displaying a text input screen including a keypad area displaying a virtual keypad and a text area displaying an input character when the text input mode is executed;
Generating a touch down event in one of the key areas of the virtual keypad;
Checking whether a touch event occurs in an input confirmation key for determining input of a character while the touch down event is maintained; And
And when a touch event occurs in the input confirmation key, inputting, in the text area, a character assigned to the key area in which the touch down event has occurred. The method of claim 1,
Checking whether a touch occurs on the input confirmation key when a touch movement event occurs in a virtual keypad area while the touch down event is maintained; And
And inputting a character assigned to the key area selected by the touch movement event to the text area when a touch occurs on the input confirmation key. The method of claim 1,
Virtually inputting a letter assigned to the touched down key area into the letter area when the touch down event occurs; And
And changing the virtually input character corresponding to the touch movement event when the input determination key is not touched and the touch movement event occurs. The method of claim 3,
The virtual input process
And displaying at least one of a color, a contrast, and a size of the virtually input text differently. The method of claim 1,
And outputting an image displayed by enlarging a character allocated to the touched key region. The method of claim 1,
The input confirmation key
Character input method using a multi-touch, characterized in that the output is fixed to a predetermined position, or output to a position adjacent to the touched key area. The method of claim 1,
Character input method using a multi-touch, characterized in that further comprising the step of setting the output position of the input confirmation key. In the character input device using multi-touch,
A touch screen for displaying a text input screen including a keypad area for displaying a virtual keypad and a text area for displaying input characters when the text input mode is executed; And
When a touch-down event occurs in one of the key areas of the virtual keypad, check whether a touch event occurs in an input confirmation key for confirming an input of a character while the touch-down event is maintained, and a touch event is generated in the input confirmation key. And a controller for inputting, in the text area, a character assigned to the key area where the touch down event has occurred, if any. The method of claim 8,
The control unit
When a touch occurs on the input confirmation key after a touch movement event occurs in the virtual keypad region while the touch down event is maintained, a character assigned to the key region selected by the touch movement event is input to the character region. Character input device using a multi-touch, characterized in that for controlling. The method of claim 8,
The control unit
And virtually input a character assigned to the touched-down key area when the touch-down event occurs, and change the virtually input character in response to the touch-move event when a touch-move event occurs. Character input device using multi-touch. The method of claim 10,
The control unit
Character input apparatus using a multi-touch, characterized in that for displaying at least one of the color, contrast and size of the virtually input character differently. The method of claim 8,
The control unit
Character input device using a multi-touch, characterized in that for fixing the input confirmation key to a predetermined position or output to a position adjacent to the touched key area. The method of claim 8,
And a storage unit which stores an output position of the input determination key set by a user.
KR1020100127502A 2010-12-14 2010-12-14 Method and apparatus for inputting a message using multi-touch KR20120066255A (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100127502A KR20120066255A (en) 2010-12-14 2010-12-14 Method and apparatus for inputting a message using multi-touch

Publications (1)

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