KR101928914B1 - Mobile terminal - Google Patents

Abstract

A mobile terminal is disclosed. The mobile terminal can provide a handwriting input function through the handwriting input means even when the user's touch is maintained.

Description

[0001]

The present invention relates to a mobile terminal, and more particularly, to a mobile terminal providing a stable handwriting input environment.

2. Description of the Related Art As a mobile terminal such as a notebook computer, a mobile phone, or a smart phone has diversified functions, a mobile terminal has a variety of functions such as photographing, video shooting, music or video file playback, And is implemented in the form of a multimedia player.

In order to support and enhance the functionality of such a mobile terminal, it may be considered to improve the structural and / or software portion of the terminal. Recently, a variety of terminals including a mobile terminal provide a complex and various functions, and the menu structure is also becoming complicated.

SUMMARY OF THE INVENTION The present invention provides a mobile terminal that provides a stable handwriting input environment based on a touch received through a handwriting input means in a state where a touch by a user's hand is received.

The technical objects to be achieved by the present invention are not limited to the technical matters mentioned above, and other technical subjects which are not mentioned can be clearly understood by those skilled in the art from the following description. There will be.

According to an aspect of the present invention, there is provided a mobile terminal including a touch screen and a control unit. Wherein the control unit recognizes the first touch as a touch by a user's hand when a second touch of a certain area or less is received while the first touch over a predetermined area is maintained for a predetermined time or longer via the touch screen, It is possible to recognize the second touch as a touch by the handwriting input means, thereby preventing the handwriting input by the first touch and activating the handwriting input function by the second touch.

The controller may control the touch screen to display a predetermined handwriting input screen if the first touch is maintained for a predetermined time or longer. The control unit may automatically save the handwriting input created by the second touch and deactivate the handwriting input function after a predetermined time has elapsed since the first and second touches are released.

In addition, the controller may activate the editing function for the stored handwriting input when the touch of the predetermined area or more is received through the touch screen within a predetermined time after the handwriting input function is deactivated. The controller may store the handwritten input created by the second touch when the first and second touches are released and movement of the touch in a specific direction is sensed through the touch screen.

The mobile terminal according to the present invention can provide handwriting input through handwriting input means in a state in which a touch by a user's hand is received, thereby providing a stable handwriting input environment.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
2 is a flowchart illustrating an example of a handwriting input method performed in the mobile terminal according to the present invention.
FIG. 3 shows that the user inputs a handwriting on the touch screen according to the handwriting input method shown in FIG.
4 illustrates that handwriting input is performed based on a touch by a handwriting input means when a touch by a user's hand and a touch by handwriting input means are simultaneously received on a touch screen.
FIG. 5 shows examples of a predetermined handwriting input screen provided in the mobile terminal according to the present invention, in accordance with the handwriting input method shown in FIG.
6 is a flowchart illustrating another example of a handwriting input method performed in the mobile terminal according to the present invention.
FIG. 7 is a diagram showing that handwriting input based on the touch of the handwriting input means is possible even when the touch by the user's hand is released according to the handwriting input method shown in FIG.
FIGS. 8 and 9 show examples of visual effects applied to the handwriting input screen when the touch by the user's hand and the touch by the handwriting input means are released according to the handwriting input method shown in FIG. 6. FIG.
FIG. 10 shows an example in which an eraser function provided by a mobile terminal according to the present invention is performed.
11 is a flowchart illustrating another example of a handwriting input method performed in the mobile terminal according to the present invention.
FIG. 12 shows an example in which a user stores handwriting input according to the handwriting input method shown in FIG.
FIG. 13 shows an example in which a handwriting input screen expanding function provided by the mobile terminal according to the present invention is performed.
FIG. 14 is a flowchart illustrating another example of a handwriting input method performed in the mobile terminal according to the present invention.
FIG. 15 shows a process in which the handwriting input editing function is executed according to the handwriting input method shown in FIG.

The foregoing objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Like reference numerals designate like elements throughout the specification. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

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 herein 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), a navigation device, have. However, the scope of the present invention is not limited thereto.

1 is a block diagram of a mobile terminal 100 according to an embodiment of the present invention. 1, the mobile terminal 100 includes a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, A memory 160, an interface unit 170, a control unit 180, a power supply unit 190, and the like. 1 are not essential, the mobile terminal 100 may have more or less components than those shown in FIG.

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 management server through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to 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 management server 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).

The broadcast receiving module 111 receives broadcasting signals using various broadcasting systems. In particular, the broadcasting receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S) Only Digital Broadcast-Handheld (DVB-H), Integrated Services Digital Broadcast-Terrestrial (ISDB-T), and the like. Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems that provide broadcast signals 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 a radio signal 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 in response to a voice call signal, a video call call signal, or a text / multimedia message transmission / reception.

The wireless Internet module 113 refers to a module for wireless Internet access, and the wireless Internet module 113 can be embedded in the mobile terminal 100 or externally. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access), LTE (Long Term Evolution) .

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 the short distance communication technology.

The location information module 115 is a module for confirming or obtaining the location of the mobile terminal. The location information module 115 may obtain location information using a global navigation satellite system (GNSS). Here, the Global Positioning System (GNSS) is a term used to describe the radionavigation satellite systems in which certain types of radionavigation receivers orbiting the Earth are transmitting reference signals that can determine their position near the surface or ground surface . The Global Positioning System (GNSS) includes Global Positioning System (GPS) in the United States, Galileo in Europe, GLONASS (Global Orbiting Navigational Satelite System) in Russia, COMPASS in China and Japan QZSS (Quasi-Zenith Satellite System), which is operated by the Ministry of Land, Infrastructure and Transport.

As a representative example of the GNSS, the location information module 115 may be a Global Position System (GPS) module. The GPS module calculates information on a distance (distance) from three or more satellites to a point (object), information on a time when the distance information is measured, and then applies a trigonometric method to the calculated distance information, Dimensional position information according to latitude, longitude, and altitude with respect to a point (object) in the three-dimensional space. Further, a method of calculating position and time information using three satellites and correcting the error of the calculated position and time information using another satellite is also used. The GPS module continuously calculates the current position in real time, and calculates velocity information using the current position.

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. [ The camera 121 may be equipped with two or more cameras according to the configuration of the terminal.

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 movement 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, And senses the current state of the terminal 100 to generate a sensing signal for controlling the operation of the mobile terminal 100. The sensing signal may be transmitted to the controller 180 so that the controller 180 may perform a specific function.

1, the sensing unit 140 includes only the attitude sensing sensor 141. However, the sensing unit 140 may include a touch sensor for sensing whether the user touches the sensing unit 140, A vibration sensor for detecting vibration, a gyro sensor for detecting rotation of the mobile terminal 100, an acceleration sensor, a geomagnetic sensor, and the like. However, the scope of the present invention is not limited thereto.

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. In addition, it may be responsible for a sensing function related to 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.

The output unit 150 may include a display unit 151, an acoustic output unit 152, an alarm unit 153, and a haptic module 154, for example, for generating an output related to visual, auditory, have.

The display unit 151 displays and 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, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a three-dimensional display 3D display).

Some of these displays may be transparent or light transmissive so that they can be seen through. This may be referred to as a transparent display. A typical example of the transparent display is a transparent LCD or 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.

A proximity sensor may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen that is wrapped 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 cursor with the change of the electric field along the proximity of the cursor when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

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 unit 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 unit 152 outputs an acoustic signal related to a function (e.g., a call signal reception sound, a message reception sound, and the like) performed by the mobile terminal 100. The audio output unit 152 may include a receiver, a speaker, a buzzer, and the like. Also, the sound output unit 152 may output sound through the earphone jack 116. The user can connect the earphone to the earphone jack 116 to hear the sound output.

The alarm unit 153 may output 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 also be output through the display unit 151 or the audio output unit 152.

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 be configured to perform various functions such as an effect of stimulation by a pin arrangement vertically moving with respect to a contact skin surface, an effect of stimulation by air spraying force or suction force through a jet opening or a suction opening, A variety of tactile effects such as an effect of stimulation through contact of an electrode, an effect of stimulation by an electrostatic force, and an effect of reproducing a cold sensation using a heat absorbing 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 feel the tactile effect through the muscles of the user's finger or arm. The haptic module 154 may include two or more haptic modules 154 according to the configuration of the portable 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 , An optical disc, and the like. 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 receives power from the external device to transfer the data to each component in the mobile terminal 100 or to transmit data in the mobile terminal 100 to an 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 interface unit 170 may include a card slot on which the card type user identification module can be mounted. Then, the user identification module may be connected to the mobile terminal 100 through the card slot. At this time, a plurality of user identification modules may be connected to the interface unit 170.

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 control unit 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 may receive external power and internal power under the control of the controller 180 to supply power required 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 processors, controllers, micro-controllers, microprocessors, and electrical units for performing functions. In some cases, And may be implemented by the control unit 180.

According to a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that perform at least one function or operation. The software code may be implemented by a software application written in a suitable programming language. In addition, the software codes may be stored in the memory 160 and executed by the control unit 180. [

The configuration of the mobile terminal 100 according to the present invention has been described above with reference to FIG. Hereinafter, the handwriting input function provided by the mobile terminal 100 according to the present invention will be described in more detail with reference to FIG. 2 to FIG.

2 is a flowchart showing an example of a handwriting input providing method of the mobile terminal 100 according to the present invention. Hereinafter, the handwriting input providing method will be described with reference to necessary drawings.

First, a first touch of a certain area or more is held for a predetermined time or longer through the touch screen 151, and a second touch of a certain area or less is received (S100). In this specification, a touch of a certain area or more by the user's hand 300 is referred to as a first touch, and a touch by the handwriting input means 200 is referred to as a second touch.

When the first and second touched touches are received, the controller 180 of the mobile terminal 100 recognizes the first touch as a touch by the user's hand and touches the second touch as a touch by the handwriting input means (S110). Here, the handwriting input means may be a stylus pen or a user's finger. However, the scope of the present invention is not limited thereto.

For example, when the touch (i.e., the first touch) by the user's hand 300 is maintained for one second or more, the controller 180 controls the touch of the handwriting input means 200 (i.e., the second touch) You can activate the handwriting input function. This time may be set at the time of manufacturing the mobile terminal 100 and may be set by the user.

Then, the control unit 180 prevents handwriting input for the first touch and activates the handwriting input function for the second touch (S120). Meanwhile, the control unit 180 may display a predetermined handwriting input screen on the touch screen 151 while activating the handwriting input function (S130).

FIG. 3 shows that the user inputs a handwriting to the touch screen 151 according to the handwriting input method shown in FIG. 3, the user can perform handwriting input in a stable handwriting position using the stylus pen 200, which is a handwriting input means, while touching the palm, which is a part of the hand 300, with the touch screen 151 .

FIG. 4 is a diagram illustrating a touch (A) by the handwriting input means 200 when the touch B by the user's hand 300 and the touch A by the handwriting input means 200 are simultaneously received on the touch screen Indicating that handwriting input is performed. As shown in FIG. 4 (a), when a touch B of a certain area or more is recognized by the user's hand 300 and a touch A of a certain area or less by the handwriting input means 200 is recognized , The control unit 180 can display the handwriting input by the handwriting input means 200 on the touch screen 151 as shown in FIG. 4 (b) .

If the area of the touch received through the touch screen 151 is not greater than the area of the touch of the area having a smaller area, The handwriting input function in the touch state may not be activated. This is because the area of the touch by the user's hand 300 is generally larger than the area of the touch by the handwriting input means.

4, only two touches are shown. However, even when two or more touches are received, the control unit 180 determines that the touch by the user's hand 300 and the touch by the handwriting input means 200 The handwriting input function of the handwriting input means 200 can be activated while the touch by the user's hand 300 is maintained.

FIG. 5 shows examples of predetermined handwriting input screens provided in the mobile terminal 100 according to the present invention, in accordance with the handwriting input method shown in FIG. In FIG. 5A, the touch B by the user's hand 300 is darkened, which indicates that the touch B by the user's hand 300 is held for a predetermined time or longer.

5 (b), the control unit 180 may display a predetermined handwriting input screen on the touch screen 151. In this case, Referring to FIG. 5 (b), it can be seen that the handwriting input screen provided in the mobile terminal 100 can be provided in the form of a handwritten note or a note.

6 is a flowchart illustrating another example of a handwriting input method performed in the mobile terminal 100 according to the present invention. Hereinafter, the handwriting input providing method will be described with reference to necessary drawings.

When the handwriting input function is activated, it is recognized that the first touch by the user's hand 300 is released (S200). Even if the first touch is released, the control unit 180 of the mobile terminal 100 maintains the activated state of the handwriting input function based on the touch (i.e., the second touch) by the handwriting input means 200 (S210 ).

Then, the controller 180 determines whether the second touch is not received for a predetermined time after the first touch is released (S220). If the second touch is received within a predetermined time after the first touch release, the controller 180 performs steps S210 and S220 again.

However, if the second touch is not received for a certain period of time after the first touch release, the controller 180 stores the handwriting input up to now (S230). Once the handwriting input is received, The user is notified of the provisional interruption (S240). Here, the storage of the handwriting input may mean temporary storage of the written handwriting input content, or may be a final storage for storing the handwriting input as a file.

If the first touch or the second touch is not received by the touch screen 151 after the visual effect is given to the handwriting input screen, the controller 180 disables the handwriting input function, Can be returned to the state before execution of the handwriting input function.

However, if a visual effect is given to the handwriting input screen and then the first touch or the second touch is received on the touch screen 151 within a predetermined time, the controller 180 activates the handwriting input function again The editing function for the handwriting input to be stored can be activated. Then, the user can perform continuous handwriting input based on the stored handwriting input.

7 is a diagram showing that handwriting input based on the touch A of the handwriting input means 200 is possible even when the touch B by the user's hand 300 is released according to the handwriting input method shown in Fig. to be.

The area corresponding to the touch by the user's hand 300 is indicated by a dotted line, which indicates that the touch is released. For reference, touches indicated by dashed lines in the other drawings in the future also indicate that they are released. 7, the user can create a handwriting input based on the movement of the touch A by the handwriting input means 200 even when the touch by the user's hand 300 is released.

Figs. 8 and 9 are diagrams showing a case where the touch B by the user's hand 300 and the touch A by the handwriting input means 200 are all released according to the handwriting input method shown in Fig. 6, (151-4). ≪ / RTI >

8, when a predetermined time elapses after the touch B by the user's hand 300 and the touch A by the handwriting input means 200 have elapsed, the handwriting input screen 151 -4) can be displayed dark. 9, when a predetermined time has elapsed after the touch B by the user's hand 300 and the touch A by the handwriting input means 200 have elapsed, the handwriting input screen 151 -4) can be reduced.

FIG. 10 shows an example in which the eraser function provided by the mobile terminal 100 according to the present invention is performed. 10 (a), when the touch B by the user's hand 300 is repeatedly moved in the up-down or left-right direction while the touch A by the handwriting input means 200 is released, The control unit 180 of the mobile terminal 100 may activate the eraser function for the handwriting input.

Referring to FIG. 10B, when the repetitive movement of the touch by the user's hand 300 is recognized, the control unit 180 controls the movement of the user's hand 300 It is seen that the handwriting input performed on the touch screen is erased.

According to the eraser function shown in Fig. 10, the user can easily erase a large area of handwriting input using the palm. In general, a terminal providing a handwriting input function provides an eraser function separately, and a user may select an icon or menu for performing the eraser function, and then select a region to be erased using the handwriting input means. However, according to the function shown in FIG. 10, the user can intuitively execute the eraser function immediately without taking any other action.

11 is a flowchart illustrating another example of a handwriting input method performed by the mobile terminal 100 according to the present invention. Hereinafter, the handwriting input providing method will be described with reference to necessary drawings.

While the handwriting input function is activated, both the first touch by the user's hand 300 and the second touch by the handwriting input means 200 are released (S300). In a state where the first and second touches are released, a touch and drag in a predetermined direction is received through the touch screen 151 (S310).

Then, the control unit 180 of the mobile terminal 100 stores the handwriting input created so far (S320). As described above, the storage of the handwriting input may be an intermediate storage for storing the created handwriting input state, or may be a final storage for storing the handwriting input as a file.

If the handwriting input function is activated, the controller 180 displays a screen for performing the editing function for the stored handwriting input on the touch screen 151, Can be displayed. Also, in case of final storage, the controller 180 may further provide a user interface for inputting a file name.

Then, the control unit 180 finally disables the handwriting input function (S330) and restores the screen of the touch screen 151 to the state before activation of the handwriting input function.

FIG. 12 shows an example in which a user stores handwriting input according to the handwriting input method shown in FIG. 12 (a) and 12 (b), when the user presses the first touch B by the user's hand 300 and the second touch A by the handwriting input means 200 It is understood that the touch C using the finger is moved to the right. Then, the control unit 180 can store the written handwriting input on the handwriting input screen 151-4.

As shown in Figs. 11 and 12, the operation of the user for storing the handwriting input is not limited to moving the touch using the finger to the right. For example, the user may move a touch through a handwriting input means such as a stylus pen to the left, input a predetermined specific touch using a finger, or tap the touch screen 151 a predetermined number of times Or the like to perform a storage function for handwriting input.

After the first and second touches are released, the controller 180 stores the handwriting input on the basis of the type of the touch received on the touch screen 151, the duration of the touch, the number of touches, It is possible to judge whether the data is to be finally stored or to perform the operation according to the judgment.

FIG. 13 shows an example in which the handwriting input screen expanding function provided by the mobile terminal 100 according to the present invention is performed.

13A, virtual handwriting input areas 151-5 and 151-6 are provided on the right and bottom of the screen of the touch screen 151 in a state where a handwriting input screen is provided on the touch screen 151 . In the state of FIG. 13 (a), the user moves the touch D toward the right edge of the screen of the touch screen 151 to the left. 13 (b), the controller 180 of the mobile terminal 100 displays the screen of the touch screen 151 on the right side so as to include the virtual handwriting input screen 151-5 Expanding it.

13A, the user moves the touch E to the bottom edge of the screen of the touch screen 151 to the top of the screen. 13 (c), the controller 180 of the mobile terminal 100 displays the screen of the touch screen 151 in a downward direction so as to include a virtual handwriting input screen 151-6 Expanding it.

Using the handwriting input screen expanding function shown in FIG. 13, the user can easily extend the handwriting input screen. 13, a user can extend a handwriting input screen by moving a touch to the edge of the touch screen 151 screen. However, the user's action for expanding the handwriting input area is not limited thereto. For example, the user may extend the handwriting input screen through a page up / down key operation in a state in which the handwriting input function is activated and a direction key operation in a state in which the handwriting input function is activated.

When the handwriting input screen is expanded according to the method shown in FIG. 13 and then the handwriting input is stored, the controller 180 may store the entire extended handwriting input area, You can also specify a region and then perform a save on this portion. Also, the controller 180 may store the handwriting input screen area selected by the user.

FIG. 14 is a flowchart illustrating another example of a handwriting input method performed in the mobile terminal 100 according to the present invention. Hereinafter, the handwriting input providing method will be described with reference to necessary drawings.

When the handwriting input function is activated, the first touch and the second touch received through the touch screen 151 are released (S400). When the first threshold time elapses after the first and second touch releases, the control unit 180 of the mobile terminal 100 automatically saves the handwriting input so far and temporarily disables the handwriting input function (S410 ).

As noted above, the storage of the handwriting input may be intermediate or final. The deactivation of the handwriting input function may be a temporary deactivation of the handwriting input function or a final deactivation of the handwriting input function.

After the first and second touches are released, a first touch is received before a second threshold time elapses (S420). Then, the control unit 180 activates the editing function for the automatically stored handwriting input (S430). On the other hand, when the editing function for the handwriting input is activated, the handwriting input function is activated, the handwriting input screen of the touch screen 151 displays the automatically stored handwriting input, This means that you can edit the displayed handwriting input or create additional handwriting input.

FIG. 15 shows a process in which the handwriting input editing function is executed according to the handwriting input method shown in FIG. 15A shows that the user releases the first touch by the user's hand 300 and the second touch by the handwriting input means 200 in a state in which the handwriting input function is activated.

If a predetermined time elapses after the first and second touches are released, the controller 180 stores the handwriting input and deactivates the handwriting input function. When the handwriting input function is deactivated, the controller 180 switches the screen of the touch screen 151 to the desktop screen before the handwriting input function is activated, as shown in FIG. 15 (b).

After the handwriting input function is deactivated, a touch over a predetermined area (i.e., a first touch) by the user's hand 300 is re-received via the touch screen 151 within a predetermined time. 15 (d), the control unit 180 displays the handwriting input stored in the touch screen 151 by activating the handwriting input function and activating the handwriting input editing function. The user can then edit the displayed handwriting input or create additional handwriting input thereto.

Each of the handwriting input related methods performed in the mobile terminal 100 according to the present invention may be implemented in a form of a program that can be executed through various computer means and recorded in a computer readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program recorded on the medium may be those specially designed and constructed for the present invention or may be those known to those skilled in the computer software.

Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media 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. Examples of programs include high-level language code that can be executed by a computer using an interpreter or the like, as well as machine code as produced by a compiler. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. This is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the claims, as well as the claims.

100: mobile terminal 110: wireless communication unit
116: input unit 120: A / V input unit
130: user input unit 140: sensing unit
150: output unit 151: display unit
152: Acoustic output unit 160: Memory
170: interface unit 180: control unit
190: power source unit 200: handwriting input means
300: user's hand

Claims (5)

touch screen; And
When a second touch of a predetermined area or less is received in a state where a first touch over a predetermined area is maintained for a predetermined time or longer via the touch screen, the first touch is recognized as a touch by a user's hand, And a control unit for recognizing a touch by a handwriting input unit and preventing handwriting input by the first touch and activating a handwriting input function by the second touch,
Wherein,
And controls the touch screen to display a predetermined handwriting input screen when the first touch is maintained for a predetermined time or longer. delete The apparatus of claim 1,
Wherein the handwriting input function is automatically stored after the first and second touches are released and a predetermined time elapses, and then the handwriting input function is deactivated. The apparatus of claim 3,
Wherein the editing function for the stored handwriting input is activated when a touch of the predetermined area or more is received through the touch screen within a predetermined time after the handwriting input function is deactivated. The apparatus of claim 1,
And stores the handwritten input created by the second touch when the first and second touches are released and movement of the touch in a specific direction is sensed through the touch screen.

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