KR20110093091A - Method for compensating input data of touch sensible portable terminal - Google Patents

Abstract

PURPOSE: A touch input correcting method of a mobile terminal is provided to correct information which is inputted by touch by pressurizing the posture of a terminal. CONSTITUTION: A posture of a mobile terminal is detected(S10). A finger which is touched on a touch screen of the mobile terminal is sensed(S20). The direction of the finger is sensed(S30). Posture information of the mobile terminal is drawn out. Posture information of the mobile terminal is obtained from the gradient angle of the mobile terminal.

Description

Touch input correction method of mobile terminal {METHOD FOR COMPENSATING INPUT DATA OF TOUCH SENSIBLE PORTABLE TERMINAL}

The present invention relates to a mobile terminal capable of inputting by a touch method.

A mobile terminal is a portable device that is portable and has one or more functions such as voice and video calling, information input and output, and data storage.

As the functions are diversified, the mobile terminal may have complicated functions such as photographing a picture or video, playing a music or video file, receiving a game, or receiving a broadcast. These features can be integrated at once to create a comprehensive multimedia player.

In order to implement complex functions, various new attempts have been applied to mobile terminals in terms of hardware or software. In addition, a user interface environment is provided for a user to search for or select a function easily and conveniently.

In order to provide a simpler and slimr appearance and a convenient user interface, a touch input method is applied. However, when a touch input is made by an object such as a finger, the information to be input by the finger may be covered so that the touch direction and the line of sight of the finger do not coincide to see the input information. Therefore, there is a problem that the information to be input by the user and the information actually input by the touch may be different.

According to the present invention, in a mobile terminal inputting by a touch method, information to be input by a user and information actually input by a touch can be corrected by applying appropriate correction from a posture of a terminal or a direction of a finger. There is a purpose.

In order to solve the above problems, the present invention comprises the steps of detecting the posture of the mobile terminal; Detecting a finger touched on a touch screen mounted on the mobile terminal; Determining a direction of the touched finger; Deriving a correction value corresponding to posture information of the mobile terminal and direction information of the finger; And executing an input corresponding to a second position which is a result of applying the correction value to the first position where the finger is actually touched.

The posture information of the mobile terminal can be obtained from the tilt angle of the mobile terminal with respect to the reference posture.

Direction information of the finger may be obtained from a direction of a long axis of an area where the finger touches the touch screen.

The direction information of the finger may be obtained by detecting, by a proximity sensor, an area where the finger is hovered within a predetermined distance from the touch screen.

The correction value may be obtained by a combination of a first correction value according to a posture of the terminal and a second correction value according to direction information of the finger.

According to the touch input correction method of the mobile terminal according to the present invention, the position actually touched can be correctly corrected to the position that the user wants to input through the posture of the mobile terminal and the direction of the finger touching the touch screen.

Since the posture or touch area of the mobile terminal required to derive the correction value utilizes a sensor embedded in the mobile terminal for other functions, there is an advantage that does not involve additional components or an increase in cost.

1 is a block diagram of a mobile terminal related to the present invention (block diagram)
2 is a front perspective view of an example of a mobile terminal or a mobile terminal according to the present invention;
3 is a rear perspective view of the mobile terminal shown in FIG.
4 and 5 conceptually display wrong input that may occur when an input is made through a touch screen;
6 is a conceptual diagram illustrating a case of correcting by using posture information of a mobile terminal.
7 is a conceptual diagram illustrating a case of correcting using a touched area.
8 is a flowchart illustrating a touch input correction method of a mobile terminal according to the present invention.

Hereinafter, a portable terminal according to the present invention will be described in detail with reference to the drawings. The suffixes "module" and "unit" for components used in the following description are merely given in consideration of ease of preparation of the present specification, and do not impart any particular meaning or role by themselves.

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

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 unit 160, and an interface. The unit 170, the controller 180, and the power supply unit 190 may be included. 1 shows a mobile terminal having various components. However, not all illustrated components are required. The mobile terminal may be implemented by more components than the illustrated components, and the mobile terminal may be implemented by fewer components.

The following describes the components in order.

The wireless communication unit 110 may include one or more components for wireless communication between the mobile terminal 100 and another wireless communication system or wireless communication between the mobile terminal 100 and a 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 a broadcast signal 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 mean a server that generates and transmits a broadcast signal and / or broadcast related information or a server that receives a pre-generated broadcast signal and / or broadcast related information and transmits the same to a terminal. The broadcast related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast signal may include not only a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, but also a broadcast signal having a data broadcast signal combined with a TV broadcast signal or a radio broadcast signal.

Meanwhile, broadcast related information may be provided through a mobile communication network, and in this case, may be received by the mobile communication module 112.

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

The broadcast receiving module 111 may include, for example, Digital Multimedia Broadcasting-Terrestrial (DMB-T), Digital Multimedia Broadcasting-Satellite (DMB-S), Media Forward Link Only (MediaFLO), and Digital Video Broadcast- (DVB-H). A digital broadcast signal may be received using a digital broadcast system such as handheld) or ISDB-T (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be configured to be suitable for all broadcast systems providing broadcast signals as well as the digital broadcast system described above.

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

The mobile communication module 112 transmits and receives a wireless signal with 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 according to transmission and reception of a voice call signal, a video call signal, or a text / multimedia message.

The wireless Internet module 113 is a module for wireless Internet access, and the wireless Internet module 113 can be built in or externally. Wireless Internet technologies may include Wireless LAN (Wi-Fi), Wireless Broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), and the like.

The short range communication module 114 refers to a module for short range communication. As a short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used.

The location information module 115 is a module for checking or obtaining the location of a mobile terminal. A representative example is a GPS (Global Position System) module.

The A / V 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 an image frame such as a still image or a moving image obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame may 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 by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into electrical voice data. The processed voice data may be converted into a form transmittable to the mobile communication base station through the mobile communication module 112 and output in the call mode. The microphone 122 may implement various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

The user input unit 130 generates input data for the user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static pressure / capacitance), a jog wheel, a jog switch, and the like. In particular, when the touch pad has a mutual layer structure with the display unit 151 described later, this may be referred to as a touch screen.

The sensing unit 140 detects a current state of the mobile terminal 100 such as an open / closed state of the mobile terminal 100, a location of the mobile terminal 100, presence or absence of a user contact, orientation of the mobile terminal, acceleration / deceleration of the mobile terminal, and the like. To generate 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 may sense whether the slide phone is opened or closed. In addition, whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to the external device may be sensed. The sensing unit 140 may include a proximity sensor 141.

The output unit 150 is used to generate an output related to sight, hearing, or tactile sense, and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154. Can be.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in a call mode, the mobile terminal displays a user interface (UI) or a graphic user interface (GUI) related to the call. When the mobile terminal 100 is in a video call mode or a photographing mode, the mobile terminal 100 displays photographed and / or received images, a UI, and a GUI.

The display unit 151 includes a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display (flexible). and at least one of a 3D display.

Some of these displays can be configured to be transparent or light transmissive so that they can be seen from the outside. This may be referred to as a transparent display. A representative example of the transparent display is TOLED (Transparant OLED). The rear structure of the display unit 151 may also be configured as a light transmissive structure. With this structure, the user can see the object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

According to an implementation form of the mobile terminal 100, two or more display units 151 may exist. For example, a plurality of display units may be spaced apart or integrally disposed on one surface of the mobile terminal, or may be disposed on different surfaces.

When the display unit 151 and a sensor for detecting a touch operation (hereinafter, referred to as a touch sensor) form a mutual layer structure (hereinafter referred to as a touch screen), the display unit 151 may be configured in addition to an output device. Can also be used as an input device. The touch sensor may have, for example, a form of a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in pressure applied to a specific portion of the display unit 151 or capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor may be configured to detect not only the position and area of the touch but also the pressure at the 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 then transmits the corresponding data to the controller 180. As a result, the controller 180 can know which area of the display unit 151 is touched.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of a mobile terminal surrounded by a touch screen or near 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 an object present in the vicinity without using a mechanical contact by using an electromagnetic force or infrared rays. Proximity sensors have a longer life and higher utilization than touch sensors.

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

Hereinafter, for convenience of explanation, the act of allowing the pointer to be recognized without being in contact with the touch screen so that it is recognized that the pointer is located on the touch screen is referred to as "proximity touch," and on the touch screen The act of actually touching the pointer is referred to as "contact touch". The position where the proximity touch is performed by the pointer on the touch screen refers to a position where the pointer is perpendicular to the touch screen when the pointer is in proximity proximity.

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

The sound 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, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The sound output module 152 may also output a sound signal related to a function (eg, a call signal reception sound, a message reception sound, etc.) performed in the mobile terminal 100. The sound output module 152 may include a receiver, a speaker, a buzzer, and the like. The mechanical structure of the speaker of the present invention will be described in detail later.

The alarm unit 153 outputs a signal for notifying occurrence of an event of the mobile terminal 100. Examples of events occurring in the mobile terminal include call signal reception, message reception, key signal input, and touch input. The alarm unit 153 may output a signal for notifying occurrence of an event in a form other than a video signal or an 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 151 and 152 may be classified as part of the alarm unit 153.

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

In addition to vibration, the haptic module 154 may be configured to provide a pin array that vertically moves with respect to the contact skin surface, a jetting force or suction force of air through the jetting or suction port, grazing to the skin surface, contact of the electrode, electrostatic force, and the like. Various tactile effects can be generated, such as effects by the endothermic and the reproduction of a sense of cold using the elements capable of endotherm or heat generation.

The haptic module 154 may not only deliver the haptic effect through direct contact, but also may implement the user to feel the haptic effect through a muscle sense such as a finger or an arm. Two or more haptic modules 154 may be provided according to a configuration aspect of the mobile terminal 100.

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

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), RAM (Random Access Memory, RAM), Static Random Access Memory (SRAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Programmable Read-Only Memory (PROM), Magnetic Memory, Magnetic It may include a storage medium of at least one type of disk, optical disk. The mobile terminal 100 may operate in connection with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device, receives power, transfers the power to each component inside the mobile terminal 100, or transmits data inside 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 identification module is a chip that stores various types of information for authenticating the usage rights of the mobile terminal 100, and includes a user identification module (UIM), a subscriber identify module (SIM), and a universal user authentication module ( 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 serves as a passage through which power from the cradle is supplied to the mobile terminal 100, or various command signals input from the cradle by a user. May be a passage that is delivered to the mobile terminal. Various command signals or power input from the cradle may be operated as signals 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, perform related control and processing for voice calls, data communications, video calls, and the like. In addition, the control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the controller 180 or may be implemented separately from the controller 180.

The controller 180 may perform a pattern recognition process for recognizing a writing input or a drawing input performed on a touch screen as text and an image, respectively.

The power supply unit 190 receives an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component.

2 is a front perspective view of an example of a mobile terminal or a mobile terminal according to the present invention;

The disclosed portable terminal 100 has a terminal body 101 in the form of a bar. However, the present invention is not limited thereto and may be applied to various structures such as a slide type, a folder type, a swing type, a swivel type, and two or more bodies are coupled to be relatively movable.

The terminal body 101 includes a case (casing, housing, cover, etc.) forming an external appearance. In this embodiment, the case may be divided into a front case 102 and a rear case 103. Various electronic components are built in the space formed between the front case 102 and the rear case 103. At least one intermediate case may be further disposed between the front case 102 and the rear case 103. The cases may be formed by injecting synthetic resin or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

The touch screen 156, the audio output module 152, the camera 121, the first user input unit 131, the microphone 122, the interface 170, and the like may be disposed in the terminal body, mainly the front case 102. have.

The touch screen 156 occupies most of the front surface of the front case 102. The sound output unit 151 and the camera 121 are disposed in regions adjacent to one end of both ends of the touch screen 156, and the user input unit 131 and the microphone 122 are disposed in regions adjacent to the other end. The user input unit 132 and the interface 170 may be disposed on side surfaces of the front case 102 and the rear case 103.

The touch screen 156 includes a display device such as LCD or OLED and a touch sensing layer disposed on the display device. The touch sensing layer may be divided into capacitive or positive pressure according to the method, and the correction method related to the present invention may be applied to both capacitive and positive pressure.

The receiver 152 is mainly configured to output call sounds, various system notification sounds, or multimedia playback sounds. The receiver 152 may be configured in the form of a dynamic speaker, or may be configured in a bone conduction manner.

The user input unit is configured to receive a command for controlling the operation of the mobile terminal 100. In FIG. 2, the first user input unit 131 disposed on the front of the terminal body 101 and the first unit disposed on the side surface of the mobile terminal 100 are provided. 2, the user input unit 132 is started. The first and second user inputs 131 and 132 may also be collectively referred to as manipulating portions, and may be employed in any manner as long as the user is tactile in a tactile manner.

The contents input by the first or second user input units 131 and 132 may be variously set. For example, the first user input unit 131 receives a command such as start, end, scroll, and the like, and the second user input unit 132 adjusts the volume of the sound output from the sound output unit 152 or displays 151. Command), such as switching to the touch recognition mode.

3 is a rear perspective view of the portable terminal shown in FIG. 2.

Referring to FIG. 3, a second camera 125 may be additionally mounted on the rear surface of the terminal body 101. The second camera 125 may be a camera having a photographing direction substantially opposite to that of the first camera 121 disposed on the front surface of the terminal body 101 and having different pixels from the first camera 121.

For example, the first camera 121 has a low pixel so that the user's face is photographed and transmitted to the counterpart in case of a video call, and the second camera 125 photographs a general subject and does not transmit it immediately. In many cases, it is desirable to have a high pixel. These cameras 121 and 125 may be installed in the terminal body in a rotatable or pop-up manner.

The flash 127 and the mirror 126 are further disposed adjacent to the second camera 125. The flash 127 shines light toward the subject when the subject is photographed by the camera 125. The mirror 126 allows the user to see his / her own face or the like when he / she wants to photograph himself (self-photographing) using the camera 125.

The antenna body 116 for receiving a broadcast signal may be additionally disposed on the side of the terminal body 101. The antenna 116 constituting a part of the broadcast receiving module 111 may be installed to be pulled out of the terminal body.

The terminal body 101 is equipped with a power supply unit 190 for supplying power to the portable terminal 100. The power supply unit 190 may be embedded in the terminal body or may be directly detachable from the outside of the terminal body.

4 and 5 conceptually display wrong input that may occur when an input is made through a touch screen.

The touch screen 156 may have various modes, and one of the modes may be a case in which text or numbers are input through the keypad 156a as illustrated in FIGS. 4 and 5. The size of each key constituting the keypad 156a is smaller as the size of the mobile terminal 100 is smaller and the number of keys is larger. The space for touching adjacent keys instead of the keys to input increases.

As shown in FIG. 4, when the touch input is performed using the finger of the right hand, when the horizontal line of the position to be input by the user is X1 and the vertical line is Y1, the horizontal line of the position where the finger is actually touched is X2, and the vertical line is As Y2, some postal d2 and downward deflection d1 may occur. As a specific example, assuming that the user inputs 'J', 'K' on the right side of the 'J' may be input or 'M' on the bottom may be input. This phenomenon is caused by a round shape of a finger or a deviation between a vertical line and a line of sight of a position to be touched, and can be correctly input through correction.

On the contrary, as shown in FIG. 5, when the touch input is performed using the finger of the left hand, when the horizontal line of the position to be input by the user is X3 and the vertical line is Y3, the horizontal line of the position where the finger is actually touched is X4 and the vertical line is Y4, which may cause some left deflection d4 and lower deflection d3. As described above, when the finger of the right hand and the finger of the left hand are touched, deviations in opposite directions occur.

6 is a conceptual diagram illustrating a case of correcting by using posture information of a mobile terminal. The touch of the wrong position may vary depending on the posture of the mobile terminal 100. In other words, when the mobile terminal 100 is touch input in a state where the mobile terminal 100 is erected by a specific angle θ with respect to the ground R1, the touch input is performed while the mobile terminal 100 is parallel to the ground R1. In this case, the touch direction of the finger with respect to the gaze G is different. In FIG. 6, the mobile terminal 100 is tilted only in the Y direction with respect to the ground.

If the difference between the horizontal line X of the position to be originally touched and the horizontal line X 'of the position actually touched when the mobile terminal 100 is placed at a specific angle θ is d, d is a constant correlation with respect to θ. Have a relationship. Such a relationship between d and θ may be set by a mathematical relationship or an empirical contrast table may be prepared by matching d measured for various angles. The relationship between d and θ may be stored in a memory of the mobile terminal 100. The posture related information may utilize a result detected by a motion sensor or a gyro sensor embedded in the mobile terminal 100.

Likewise, when the mobile terminal 100 is inclined with respect to the ground in the X direction, the mobile terminal 100 matches d according to the inclination of the direction.

7 is a conceptual diagram illustrating a case of correcting using a touched area.

As illustrated in FIGS. 4 and 5, the touch of the wrong position is reversed depending on which hand finger is used. The mobile terminal 100 determines which hand is present when there is a touch and takes this into account when calibrating.

As an example of determining a finger, a method of utilizing a touched area as shown in FIG. 7 may be used. That is, in general, the area P1 touched by the right hand is inclined to the right with respect to the reference line (+ α1), whereas the area P2 touched by the left hand is inclined to the left with respect to the reference line (-α2). Therefore, if the direction of the touched area is known, which finger can be determined. To this end, first, the touched area may be set as an area where a signal having a reference value or more is detected. It can be applied mainly in capacitive touch screen. When the touch area is measured, the long axis of the touch area, that is, the distance between the two opposite points of the far edge constituting the area, is obtained by calculating the tilt of the area.

Herein, the touched areas P1 and P2 of the finger may be determined by an area directly contacting the touch screen 156. In this case, the touched areas P1 and P2 may be detected by the touch screen 156.

Further, the direction information of the finger can be obtained as follows. That is, when the finger is approaching the touch screen 156 within a predetermined distance, the direction of the finger may be specified by detecting the direction in which the finger hoveres. To this end, the mobile terminal 100 may be equipped with a sensor for detecting the hovering of the finger. Such a sensor may apply a touch sensor mounted on the touch screen 156 or a separate proximity sensor.

8 is a flowchart illustrating a touch input correction method of a mobile terminal according to the present invention.

In the disclosed method, the posture of the terminal and the direction of the finger are used. First, the posture of the mobile terminal is detected (S10). The posture of the mobile terminal extracts how much the mobile terminal is inclined in the X direction or the Y direction based on the information detected by the motion sensor or the gyro sensor.

Next, the touched finger on the touch screen mounted on the mobile terminal is detected (S20), and the direction of the touched finger is determined (S30). Here, a method of determining whether the touched finger is the finger of the right hand or the finger of the left hand may be applied by using the direction of the long axis of the 'touch area' as described above to determine the direction of the touched finger.

When the posture of the terminal and the direction of the finger are specified, a correction value corresponding to the posture information of the mobile terminal and the direction information of the finger is derived (S40 and S50). The correction value may be a method of retrieving a value corresponding to a posture and a direction of a finger from a database stored in the mobile terminal, or a method obtained by inputting a posture and a direction of a finger to a specific stored formula.

When the correction value is derived, an input corresponding to the second position which is a result of applying the correction value to the first position where the finger is actually touched is executed (S60).

In this way, when there is a touch on the touch screen, an appropriate correction for the posture of the mobile terminal or the direction of the finger may be applied to minimize the deviation from the position actually input by the user.

The touch input correction method of the mobile terminal is not limited to the configuration and method of the embodiments described above, but the embodiments may be configured by selectively combining all or some of the embodiments so that various modifications can be made. It may be.

Claims (5)

Detecting a posture of the mobile terminal;
Detecting a finger touched on a touch screen mounted on the mobile terminal;
Determining a direction of the touched finger;
Deriving a correction value corresponding to posture information of the mobile terminal and direction information of the finger; And
And performing an input corresponding to a second position which is a result of applying the correction value to the first position where the finger is actually touched. The method of claim 1,
And the attitude information of the mobile terminal is obtained from an inclination angle of the mobile terminal with respect to a reference posture. The method of claim 1,
And the direction information of the finger is obtained from a direction of a long axis of an area where the finger touches the touch screen. The method of claim 1,
And the direction information of the finger is obtained by detecting, by a proximity sensor, an area where the finger is hovered within a predetermined distance from the touch screen. The method of claim 1,
And the correction value is obtained by a combination of a first correction value according to a posture of the terminal and a second correction value according to direction information of the finger.

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