KR101677636B1 - Mobile terminal and method for editing text thereof - Google Patents

Abstract

The present invention relates to a mobile terminal and a text editing method thereof. When a touch is detected in a general cursor during text creation, the general cursor is changed to an edit cursor and enters an edit mode. When the edit cursor is moved, To edit the text. According to an embodiment of the present invention, a mobile terminal searches for a character corresponding to the predetermined key in a pre-written text according to a touch input inputted to a predetermined key of a keypad during text creation, enlarges and displays the found character, The selected character is deleted according to the touch input inputted to the enlarged character or the cursor position is changed before or after the selected character.

Description

[0001] MOBILE TERMINAL AND METHOD FOR EDITING TEXT THEREOF [0002]

The present invention relates to a mobile terminal for performing text editing using an editing cursor when a character is edited on a touch screen, and a method for editing text.

A terminal such as a personal computer, a notebook computer, or a mobile phone has various functions, for example, a multimedia device having a complex function such as photographing or photographing of a moving picture, reproduction of music or a moving picture file, (multimedia player).

A terminal can be divided into a mobile terminal and a stationary terminal depending on whether the terminal is movable. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

Generally, when a text editor is performed in a terminal employing a touch screen, a user's finger is moved to a desired position by selecting a cursor, and the text is edited. At this time, the cursor and the character are hidden by the finger selected by the cursor, thereby making it difficult to precisely locate the cursor, thereby providing inconvenience. Accordingly, efforts are being made to enable text editing on the touch screen to be performed more conveniently.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a mobile terminal for performing text editing using an editing cursor when performing text editing on a touch screen, .

In order to accomplish the above object, there is provided a method of editing text on a mobile terminal, the method comprising the steps of: sensing a first touch input to a general cursor during text creation; Detecting a second touch input on the edit cursor, and performing text editing according to the second touch input.

According to another embodiment of the present invention, there is provided a text editing method for a mobile terminal, comprising: selecting a text to be edited according to a first touch input input on a keypad during text creation; Sensing a second touch input on the enlarged character, and editing the selected character based on the sensed second touch input.

According to another aspect of the present invention, there is provided a mobile terminal including a display unit implemented with a touch screen, and a display unit configured to switch the normal cursor to an edit cursor when a first touch input is detected in a normal cursor during text creation on the touch screen, And a controller for performing text editing according to the second touch input when a second touch input is detected on the cursor.

At least one embodiment of the present invention configured as described above can easily delete or modify text by moving the cursor to a desired position using an edit cursor when editing text on a touch screen. Therefore, the present invention can easily move the cursor to a desired position when editing text, so that the user can easily perform text editing.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention;
2 is a flowchart illustrating a method of moving a cursor of a mobile terminal according to an embodiment of the present invention.
3A and 3B illustrate an example in which the mobile terminal moves the cursor according to the embodiment of FIG.
4 is a flow chart illustrating a method for executing text cut and paste in a mobile terminal according to an embodiment of the present invention.
FIGS. 5A to 5E illustrate an example in which a mobile terminal according to the embodiment of FIG. 4 executes text cutting and pasting.
FIG. 6 is a flowchart illustrating a copying and pasting method of a mobile terminal according to an embodiment of the present invention; FIG.
7A to 7D illustrate an execution screen of a mobile terminal that performs text copying and pasting according to the embodiment of FIG.
FIG. 8 is a flowchart illustrating a text editing method of a mobile terminal according to an embodiment of the present invention; FIG.
Figs. 9A to 9D show an example in which the mobile terminal related to the embodiment of Fig. 8 deletes text.
10A and 10B illustrate an example in which a mobile terminal associated with the embodiment of FIG. 8 moves a cursor.
11A to 11D show an example in which the mobile terminal according to the embodiment of FIG. 8 deletes some of the sentences.
12A to 12E show an example in which the mobile terminal related to the embodiment of FIG. 8 deletes text when editing Hangul.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), navigation and the like. However, it will be understood by those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to a mobile terminal.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, A controller 170, a controller 180, a power supply 190, and the like. The components shown in FIG. 1 are not essential, and a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules for enabling wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and the network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives broadcast signals and / or broadcast-related information from an external broadcast center through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast center may be a server for generating and transmitting broadcast signals and / or broadcast-related information, or a server for receiving broadcast signals and / or broadcast-related information generated by the broadcast center and transmitting the generated broadcast signals and / or broadcast- related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. The broadcast-related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast-related information may exist in various forms. For example, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only (DVF-H) And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 112 transmits and receives radio signals to at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

The short-range communication module 114 refers to a module for short-range communication. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used as a short range communication technology.

The position information module 115 is a module for obtaining the position of the mobile terminal, and a representative example thereof is a Global Position System (GPS) module.

Referring to FIG. 1, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ Two or more cameras 121 may be provided depending on the use environment.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. It is also possible to sense whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 is for generating output related to the visual, auditory or tactile sense and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154 .

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the mobile terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, and a 3D display.

Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 according to the embodiment of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another or may be disposed integrally with each other, or may be disposed on different surfaces.

(Hereinafter, referred to as a 'touch screen') in which a display unit 151 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') form a mutual layer structure, It can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display unit 151 or a capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is surrounded by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

Examples of the proximity sensor include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as "proximity touch & The act of actually touching the pointer on the screen is called "contact touch. &Quot; The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.

The proximity sensor detects a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, a proximity touch movement state, and the like). Information corresponding to the detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

The audio output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. The video signal or the audio signal may be output through the display unit 151 or the audio output module 152 so that they may be classified as a part of the alarm unit 153.

The haptic module 154 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 154 is vibration. The intensity and pattern of the vibration generated by the hit module 154 can be controlled. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 154 may include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or a suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. At least two haptic modules 154 may be provided according to the configuration of the mobile terminal 100.

The memory 160 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 160 may store data on vibration and sound of various patterns outputted when a touch is input on the touch screen.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data to the external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM), a general user authentication module A Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

When the mobile terminal 100 is connected to an external cradle, the interface unit 170 may be a path through which power from the cradle is supplied to the mobile terminal 100, or various commands A signal may be a path through which the signal is transmitted to the mobile terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of a processor, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, The embodiments described may be implemented by the control unit 180 itself.

According to a software implementation, embodiments such as the procedures and functions described herein may be implemented with separate software modules. Each of the software modules may perform one or more of the functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code is stored in the memory 160 and can be executed by the control unit 180. [

2 is a flowchart illustrating a method of moving a cursor of a mobile terminal according to an embodiment of the present invention. The present embodiment describes moving the cursor to a character desired to be deleted or corrected at the time of editing text.

First, the controller 180 enters a text creation mode according to user input (100). For example, when a user selects a menu requiring a character input such as a note creation, a message creation, and an e-mail creation among the menus, the control unit 180 executes the selected menu and enters a text creation mode. Accordingly, the control unit 180 displays the execution screen of the menu on the display screen. The execution screen includes a keypad icon (hereinafter referred to as a 'keypad') implemented with a graphical user interface (GUI) for inputting text, data (eg, letters, numbers , Symbols, etc.) are inserted. The keypad icon is composed of key icons assigned with letters, numbers, symbols, and the like, respectively. If a touch of pointing means (e.g., a user's finger) is detected on a specific key icon of the keypad icon, the controller 180 inserts data corresponding to the key icon into the text input field and displays the inserted data. The control unit 180 may display the keypad icon over a part of a text input field. After entering the text creation mode, the controller 180 inserts the data input by the user into the text input field.

The controller 180, entering the text creation mode and creating a text, senses a touch input on a general cursor (S102). When the controller 180 detects a touch input on a normal cursor, the controller 180 recognizes the touch input as an edit request. Here, the touch input is a command corresponding to a " click " of a computer mouse with a short touch within a predetermined time.

If the controller 180 detects a touch on the normal cursor, the control unit 180 changes the normal cursor to an edit cursor and switches the text creation mode to the edit mode (S103). The edit cursor may be generated by connecting an image such as a ring shape or a rectangle to one side of the normal cursor.

If the editing cursor is dragged by the pointing means after entering the editing mode, the controller 180 detects movement of the editing cursor through the sensing unit 140 (S104). For example, when one side of the editing cursor is touch and dragged, the control unit 180 moves the editing cursor according to the touch and drag. At this time, it is possible to give a visual effect to the character positioned on the moving path of the editing cursor so that the user can recognize the position of the cursor.

The control unit 180 changes the position of the normal cursor according to the movement of the editing cursor (S105). If the touch of the editing cursor is detected after the editing cursor is moved, the controller 180 switches the editing cursor to a normal cursor. That is, the control unit 180 changes the position of the normal cursor according to the movement of the edit cursor.

3A and 3B illustrate an example in which a mobile terminal moves a cursor according to the embodiment of FIG.

The control unit 180 of the mobile terminal 100 executes the corresponding function when the memo function is selected by the user. Then, the control unit 180 displays a new memo creation screen on the display screen. 3A, the new memo creating screen includes a text input field 210 for inputting a memo input by a user and input means for inputting a text to be inserted in the text input field 210, 220).

The control unit 180 displays a text corresponding to the touch point on the text input field 210 when the touch sensing unit 140 senses a touch on the keypad icon 220.

If a touch is detected in the normal cursor 201 of the text input field 210 during the creation of a new note, the control unit 180 recognizes the touch input as an edit mode entry request. Therefore, the control unit 180 changes the normal cursor 201 to the edit cursor 202 and switches the operation mode from the text creation mode to the text edit mode, as shown in FIG. 3A. The editing cursor 202 generates a hook at one side of the normal cursor 201. Here, a hook cursor having a hook at one side of the normal cursor 201 is described as an example of an edit cursor, but an edit cursor other than a ring can be generated at one side of the normal cursor 201 to generate an edit cursor. The ring portion of the editing cursor is used to adjust the position of a normal cursor, and the editing cursor can be moved by dragging the ring portion while touching and holding the ring portion.

3B, when the user touches the ring portion of the editing cursor 202, the controller 180 detects the touch input through the sensing unit 140, The position of the editing cursor 202 is moved. At this time, the control unit 180 rotates the characters positioned at the point where the editing cursor 202 passes. In other words, a visual effect (animation effect) is given to the characters positioned on the moving path of the editing cursor, thereby allowing the user to recognize the position of the current editing cursor.

If the user touches the editing cursor 202 after the editing cursor 202 is moved to a desired position, the controller 180 switches from the editing mode to the text input mode, 201). Therefore, when the user desires to change the position of the cursor for text editing on the touch screen, the user can easily move the normal cursor using the edit cursor. In addition, according to the present invention, since the general cursor is dragged and moved between characters and characters, the touch accuracy is poor. However, since the lower ring of the cursor is touched and dragged and moved like a hook cursor, the accuracy of placement of the cursor can be increased.

4 is a flowchart illustrating a method of executing text cut and paste in a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 4, the control unit 180 enters an edit mode according to a user input during text creation (S201, S202). For example, when a touch is input on a normal cursor during the creation of a new message, the controller 180 senses touch input on the general cursor through the sensing unit 140. [ Then, the control unit 180 recognizes the detected touch input as an edit mode change command, changes the normal cursor to an edit cursor, and enters the edit mode.

If a long touch is input to one point on the editing cursor in the editing mode, the controller 180 switches to a block designation mode (S203, S204).

When the controller 180 detects the movement of the editing cursor in the block designation mode, the controller 180 blocks the text according to the movement of the editing cursor (S205). For example, in the block designation mode, when one side of the editing cursor is long-touched and the editing cursor is moved by dragging while holding the touch, the edited cursor blocks the past text.

If the user moves the editing cursor again after designating the block, the controller 180 attaches the block designated text to one side of the editing cursor and moves the editing cursor according to the movement of the editing cursor (S206 to S208). For example, after designating the text block, the controller 180 detects touch and drag at one end of the edit cursor (S206), cuts the block text (S207), and edits the cut text It is placed at one end of the cursor and moved according to the movement of the editing cursor. Thereafter, when the touch of the editing cursor is released at a specific position, the controller 180 pastes the block designated text at the corresponding position (S208).

Figs. 5A to 5E show an example in which the mobile terminal according to the embodiment of Fig. 4 executes cutting and pasting.

The control unit 180 of the mobile terminal 100 executes a new memo creation menu in accordance with the user input and inserts the data input by the user into the memo input field. That is, the control unit 180 creates a memo according to the input of the user. If a touch is detected on a normal cursor during writing a note, the control unit 180 changes the normal cursor to a hook cursor, which is an edit cursor, and enters the edit mode.

In the editing mode, as shown in FIG. 5A, when the hook cursor is long-touched, the controller 180 switches to the block setting mode. When the touch is held and dragged, the controller 180 senses the drag through the sensing unit 140. When the drag cursor is moved, the control unit 180 detects a drag on the path passing through the hook cursor as shown in FIG. Blocks the located text.

After the block is designated, as shown in FIG. 5C, the ring portion of the hook cursor is touched and dragged, and the controller 180 cuts the block designated text. At this time, the control unit 180 may arrange the cut-out text at the top of the hook cursor to move the cut text together with the movement of the hook cursor.

5D). When the touch input to the hook portion of the hook cursor is released, the control unit 180 causes the cut-out text to be pasted to the touch release point as shown in FIG. 5E do. That is, the control unit 180 pastes (inserts) the block specified text at a desired position.

6 is a flowchart illustrating a copying and pasting method of a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 6, the control unit 180 enters the edit mode according to user input during text creation (S301, S302). For example, when a touch is input on a normal cursor during the creation of a new message, the controller 180 senses the touch input on the general cursor through the sensing unit 140. [ Then, the control unit 180 recognizes the detected touch input as an edit mode change command, changes the normal cursor to an edit cursor, and enters the edit mode.

If the long touch is inputted to one point on the edit cursor in the edit mode, the controller 180 switches to the block designation mode (S303, S304).

When the controller 180 detects movement of the editing cursor in the block designation mode, the control unit 180 designates a block of text according to the movement of the edited cursor (S305). For example, in the block designation mode, when one side of the editing cursor is long-touched and the editing cursor is moved by dragging while holding the touch, the edited cursor blocks the past text.

After completing the text block designation, the controller 180 detects movement of the edit cursor at the opposite end of the block designated text (S306). For example, the control unit 180 senses a touch input for dragging an editing cursor located at one side of the block designated text to the end point of the opposite block.

When the controller 180 detects the touch input, the control unit 180 copies the block-designated text (S307). That is, if the editing cursor located at one side of the block-designated text is dragged to the opposite end point of the block-designated text, the controller 180 copies the block-designated text.

Thereafter, the control unit 180 moves the editing cursor to a desired position according to a drag input of the user, and then releases the touch to paste the copied text to the untouched point (S308).

7A to 7D show execution screens of a mobile terminal that performs text copying and pasting according to the embodiment shown in FIG.

If a touch is detected by the user during the writing of a note, the control unit 180 changes the normal cursor to a hook cursor, which is an edit cursor, and enters the edit mode. If the long touch is input on the hook cursor in the edit mode, the controller 180 switches to a block designation mode in which block designation is possible. After switching to the block designation mode, if a drag is inputted while holding the touch input on the hook cursor, the controller 180 blocks the text according to the drag input.

After blocking the text, the user touches the hook portion of the hook cursor as shown in FIG. 7A, holds the touch, and inputs a drag. If the hook cursor is dragged to the opposite end of the block designated text as shown in FIG. 7B through the drag input, the controller 180 moves the hook cursor to the opposite end point of the block designated text according to the drag input . When the hook cursor moves to the opposite end point of the block designated text, the control unit 180 copies the block designated text. Then, the control unit 180 temporarily stores the copied text in the buffer.

Then, when touch and drag is input to the hook cursor, the control unit 180 moves the hook cursor according to the input touch and drag. At this time, as shown in FIG. 7C, the control unit 180 displays the copied text on one side of the hook cursor in the form of speech balloon and moves the copied text together with the movement of the hook cursor.

When the movement of the hook cursor is completed, the control unit 180 pastes the copied text to the point where the touch input inputted in the hook cursor is released as shown in FIG. 7D.

8 is a flowchart illustrating a text editing method of a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 8, the controller 180 inserts a text input by a user in a text creation mode into a text input field (S401). That is, the control unit 180 displays the data input by the user through the keypad displayed on the touch screen in a text input field of the display screen. In other words, when the user typing the sentence using the keypad on the touch screen, the control unit 180 displays a sentence typed by the user on the display screen.

When a user wishes to correct a typo or a sentence in a sentence displayed in the text input field, the user touches a predetermined key with a keypad on the touch screen. The control unit 180 senses the long touch input on the keypad through the sensing unit 140 (S402).

In step S403, the control unit 180 searches the text input in the text input field for a character assigned to the predetermined key sensed by the long touch, and enlarges and displays the retrieved text in step S403. At this time, the controller 180 may display the enlarged text in a speech balloon form.

Thereafter, when the controller 180 detects a touch input on the enlarged text, the controller 180 deletes the corresponding text or moves the cursor according to the detected touch input (S404, S405). For example, when the general touch is detected on the enlarged text, the control unit 180 deletes the text of the detected touch point. On the other hand, when a long touch is input on the enlarged text and then a drag is input in a predetermined direction, the controller 180 places a normal cursor before or after the text of the long touch point according to the drag direction. That is, when the user touches long touch on 'a' and holds the touch and drags it in the left direction, the control unit 180 moves the position of the normal cursor to 'a'.

Figs. 9A to 9D show an example in which the mobile terminal associated with the embodiment of Fig. 8 deletes text.

First, the control unit 180 executes the memo function according to the menu operation of the user, and displays the input data on the display screen using the keypad on the touch screen. For example, the control unit 180 creates a memo 'Blogging with an iPhone' according to a user's keypad operation.

If the user desires to delete a specific character during the writing of the memo, the user touches a predetermined key of the keypad for a long time. For example, when the user desires to delete 'i' of 'iPhone' in the inputted sentence, he / she touches 'i' key of the keypad as shown in FIG. 9A.

When a long touch is detected on a predetermined key of the keypad, the control unit 180 searches for the corresponding character in the input sentence. If at least one character is searched, the controller 180 enlarges and displays the searched character as shown in FIG. 9B.

Thereafter, the user touches the enlarged character desired to be deleted among the enlarged characters. The control unit 180 recognizes the touch input as a delete command and deletes the corresponding character. Then, the controller 180 moves the cursor to the deleted character position as shown in FIG. 9D.

10A and 10B show an example in which the mobile terminal moves the cursor according to the embodiment of FIG.

When a long touch is input to a specific key of the keypad displayed on the touch screen, the controller 180 searches for a character assigned to the specific key among the previously input sentences. Then, the controller 180 enlarges the searched characters and displays them in a text input field.

Then, as shown in FIG. 10A, the user long touches one of the enlarged characters of the enlarged characters and drags the left enlarged character while keeping the touch. The control unit 180 changes the position of the cursor to the front side (left side) of the long-touched character based on the drag direction.

On the other hand, as shown in FIG. 10B, if the enlarged character of any one of the enlarged characters is long-touched and dragged to the right, the controller 180 moves the cursor to the rear (right) of the long-touched character.

11A to 11D show an example in which the mobile terminal according to the embodiment of FIG. 8 deletes some of the sentences.

If the user desires to delete a predetermined portion of a sentence, the user sequentially touches the keys corresponding to the first character and the last character of the predetermined portion in a sequential manner.

The control unit 180 searches for the letters assigned to the keys touched by the user in the pre-input sentence, and enlarges and displays the corresponding letters. At this time, the controller 180 may display the enlarged character in a balloon shape.

An enlarged character corresponding to the first character of a predetermined portion to be deleted among the displayed enlarged characters is touched and dragged to the last character of the predetermined portion. The control unit 180 deletes the character included between the character at the start point of the drag and the character at the end point.

Figs. 12A to 12E show an example in which the mobile terminal related to the embodiment of Fig. 8 deletes text when editing Hangul.

Referring to the drawing, the control unit 180 creates a Hangul message according to a keypad operation in the Hangul input mode. If a typo or a part to be corrected is found during the writing, the user touches the key of the keypad corresponding to the character long touch. At this time, the character assigned to the long-touched key is dragged in a predetermined direction following the long touch in order to distinguish whether the character is the first character, the neutral character, or the last character. For example, when the user desires to delete the first character among the previously input characters, the user touches the first key corresponding to the first character of the first character and then drags the key in the upward direction as shown in FIG. 12A, 180) searches for characters with a prefix 'i' in the input characters. Here, when dragging in the left or right direction, the controller 180 searches for a character including the dragged character as neutral, and dragging the dragged character downwardly to search for a character including the dragged character as a last character. Then, the control unit 180 enlarges and displays the corresponding letters '' and '' as shown in FIG. 12B.

Thereafter, as shown in FIG. 12C, when the 'touch' is detected in the displayed enlarged character, the controller 180 deletes the corresponding character. Then, the controller 180 moves the cursor to the deleted character position as shown in FIG. 12D.

In the present embodiment, deletion of one character is described as an example, but a part of the text may be deleted. For example, if you press and hold the '' 'key on the keypad and drag it upwards, you can search for characters with a prefix of' Y 'in the written text, enlarge and display the corresponding letters'' and '', Touch and hold the 'ㅓ' key and drag left to enlarge the letter 'ㅓ' with a neutral '.'. Thereafter, when the enlarged character 'Ji' is dragged to the character 'Ji', the control unit 180 deletes 'Jijiro Nur' including the characters located between 'Ji' and 'La'.

Further, according to an embodiment of the present invention, the above-described method can be implemented as computer-readable code on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer-readable medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and also implemented in the form of a carrier wave (for example, transmission over the Internet) . In addition, the computer may include a control unit 180 of the terminal.

The above-described terminal may be configured such that the configuration and method of the embodiments described above are not limitedly applied, but the embodiments may be configured such that all or some of the embodiments are selectively combined so that various modifications may be made. have.

100: mobile terminal 110: wireless communication unit
120: A / V input unit 121: camera
130: user input unit 140: sensing unit
150: output unit 160: memory
170: interface unit 180: control unit
190: Power supply

Claims (16)

delete delete delete delete delete Selecting a character to be edited among the created texts according to a first touch input inputted on a keypad during text creation;
Enlarging and displaying the selected character;
Detecting a second touch input on the enlarged character;
And editing the selected character based on the sensed second touch input,
The editing character selecting step comprises:
Wherein when a long touch is detected on a predetermined key of the keypad, a character assigned to the key is searched for in the created text. delete 7. The method of claim 6,
And if the detected second touch input is a general touch, deletes the touched character. 7. The method of claim 6,
Wherein when one of the enlarged characters is dragged to another character by the second touch input, the characters located between the two characters are deleted together. A display unit implemented with a touch screen,
When the first touch input is detected in the normal cursor during text creation on the touch screen, the general cursor is switched to the edit cursor, and when the second touch input is detected in the edit cursor, the text editing is performed according to the second touch input And a control unit,
Wherein,
Wherein when a long touch is detected on a predetermined key of the keypad displayed on the touch screen, the character corresponding to the predetermined key is searched for and displayed in a magnified manner. 11. The apparatus according to claim 10,
Moves the editing cursor according to the second touch input, and moves the normal cursor to a position of the edited cursor. 11. The apparatus according to claim 10,
Wherein the control unit enters a block designation mode in accordance with the second touch input, blocks a part of the created text according to movement of the edit cursor in the block designation mode, and detects movement of the edit cursor again, And cuts and cuts the cut-out text at a position where the edit cursor has moved. 11. The apparatus according to claim 10,
Wherein the editing cursor enters a block designation mode in accordance with the second touch input, blocks some of the created text in accordance with movement of the editing cursor in the block designation mode, and then moves the editing cursor to the opposite end point of the block designated text And copies the text specified by the block, and pastes the copied text at a predetermined position in accordance with movement of the edit cursor. delete 11. The apparatus according to claim 10,
And deletes the character when a touch is detected in a predetermined character among the enlarged characters. 11. The apparatus according to claim 10,
And when one of the characters in the enlarged display is moved to another character, the characters located between the two characters are also deleted.

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