KR101537684B1 - Mobile terminal and method of calibration sensitivity of proximity touch therefor - Google Patents

Abstract

The present invention relates to a mobile terminal having a touch function, and more particularly, to a method for correcting a proximity-touch sensitivity.

The present invention is characterized in that a reference circle for correcting a recognition rate based on an actual touch or a proximity touch on the proximity touch correction screen and a guide circle which is increased or decreased according to a movement of the pointer are displayed and then the pointer is moved, When matched, set the maximum capacitance and minimum capacitance at the proximity position.

Proximity touch, recognition rate, proximity sensor, recognition rate correction

Description

TECHNICAL FIELD [0001] The present invention relates to a mobile terminal and a method for correcting a recognition rate of a proximity touch for the mobile terminal,

The present invention relates to a method for improving proximity-touch sensitivity in a mobile terminal having a touch function.

The mobile terminal may be configured to perform various functions. Examples of such various functions include a data and voice communication function, a function of photographing a video or a moving image through a camera, a voice storage function, a music file playback function through a speaker system, and an image or video display function. Some mobile terminals include additional functions to execute games, and some other mobile terminals are also implemented as multimedia devices. Moreover, recent mobile terminals can receive a broadcast or multicast signal to view a video or television program.

Further, efforts for supporting and increasing the functions of the mobile terminal continue. Such efforts include not only changes and improvements in the structural components that form the mobile terminal, but also additions and improvements of software and hardware. Among them, the touch function of the mobile terminal allows the user who is not familiar with the button / key input to conveniently perform the operation of the terminal by using the touch screen. In recent years, not only simple input but also important function .

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for improving the sensitivity of proximity touch when an operation of a terminal is performed using a proximity touch.

According to an embodiment of the present invention, there is provided a mobile terminal including: a display unit having a touch screen; And a control unit for correcting a sensing unit for sensing a proximity touch and a recognition rate caused by a capacitance difference between the maximum proximity position and the minimum proximity position when the proximity touch is performed.

According to an embodiment of the present invention, there is provided a method of correcting a proximity touch recognition rate of a mobile terminal, the method comprising: displaying a proximity touch correction screen; Sensing a touch by a pointer on the correction screen; Displaying a reference figure for correcting a recognition rate according to the sensed touch and a guide circle which is increased or decreased according to movement of the pointer; And comparing the guide figure with the reference figure according to a change in the position of the pointer, thereby correcting the maximum capacitance and the minimum capacitance.

According to an embodiment of the present invention, there is provided a method of correcting a proximity touch recognition rate of a mobile terminal, the method comprising: displaying a proximity touch correction screen; Sensing a solids having a maximum and a minimum height on the correction screen; Setting a capacitance of a pointer touched to a maximum height of the solids to a proximity touch minimum value; And setting the capacitance of the pointer touched to the minimum height of the solid to the proximity touch maximum value.

As described above, the present invention has an effect that the user can more accurately use the proximity touch function by improving the recognition rate by correcting the recognition rate due to the difference in capacitance at the maximum proximity position and the minimum proximity position.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings.

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

The mobile terminal may be implemented in various forms. For example, the mobile terminal described in the present specification may be a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player) have.

The mobile terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130 (or an operation unit), a sensing unit 140, an output unit 150, An interface unit 170, a control unit 180, a power supply unit 190, and the like. 1 shows a mobile terminal having various components. However, not all illustrated components are required. A mobile terminal may be implemented by more components than the illustrated components, or a mobile terminal may be implemented by fewer components.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include at least one component that enables wireless communication between the mobile terminal 100 and the wireless communication system or wireless communication 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-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. 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.

Meanwhile, the broadcast related information may be provided through a mobile communication network, and 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 is configured to be suitable for all broadcasting systems that provide broadcasting 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.

In addition, 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. Here, 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 refers to a module for wireless Internet access, and the wireless Internet module 113 can be built in or externally.

The short-range communication module 114 is 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. One example is the GPS (Global Position System) module. The GPS module receives position information from a plurality of satellites. Here, the location information may include coordinate information indicated by latitude and longitude. For example, the GPS module can accurately calculate the current location according to the triangulation method by measuring the precise time and distance from three or more satellites and measuring three different distances. A method of obtaining distance and time information from three satellites and correcting the error by one satellite may be used. In particular, the GPS module can acquire latitude, longitude and altitude as well as three-dimensional velocity information and accurate time from the position information received from the satellite.

An audio / video (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 image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. Then, 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, etc., 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. The microphone 122 may be implemented with various noise reduction algorithms for eliminating noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control 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. Particularly, when the touch pad has a mutual layer structure with the display unit 151 described later, it can be called a touch screen.

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 of the user, 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. Also, it is responsible for a sensing function related to whether or not the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like.

The interface unit 170 serves as an interface with all external devices connected to the mobile terminal 100. For example, you can connect a device with a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, an identification module, an audio I / O port, Video input / output (I / O) ports, earphone ports, and the like.

Here, the identification module is a chip that stores 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 Universal Subscriber Identity Module (" USIM "), and the like. In addition, an apparatus having an identification module (hereinafter referred to as 'identification device') can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port. 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.

The output unit 150 is for outputting an audio signal, a video signal, or an alarm signal. The output unit 150 includes a display unit 151, an audio output module 152, and an alarm unit 153.

The display unit 151 displays 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. If the mobile terminal 100 is in the video communication mode or the photographing mode, the captured image and / or the received image or UI and GUI are displayed.

Meanwhile, as described above, when the display unit 13 and the touch pad have a mutual layer structure to constitute a touch screen, the display unit 151 can be used as an input device in addition to the output device. 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). Also, the display unit 151 may exist in two or more depending on the embodiment of the mobile terminal 100. For example, the mobile terminal 100 may be provided with an external display unit (not shown) and an internal display unit (not shown) at the same time.

The sound output module 152 outputs 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, and a broadcast reception mode. The sound output module 152 outputs an acoustic signal related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The sound output module 152 may include 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 receiving a call signal, receiving a message, and inputting a key signal. The alarm unit 153 may output a signal for informing occurrence of an event in a form other than an audio signal or a video signal. For example, it is possible to output a signal in a vibration mode. When a call signal is received or a message is received, the alarm unit 153 can output a vibration to notify it. Alternatively, when the key signal is input, the alarm unit 153 can output the vibration by the feedback to the key signal input. The user can recognize the occurrence of an event through the vibration output as described above. Of course, a signal for notifying the occurrence of an event may also be output through the display unit 151 or the audio output module 152.

The memory 160 may store a program for processing and controlling the control unit 180 and may store a program for temporarily storing input / output data (e.g., a phone book, a message, a still image, Function may be 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) A random access memory (SRAM), a read only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM) , An optical disc, and the like. In addition, the mobile terminal 100 may operate a web storage for storing the memory 150 on the Internet.

The control unit 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, 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 control unit 180 or may be implemented separately from the control unit 180. [

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

The various embodiments described herein may be embodied in a computer-readable recording medium 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. [

 In the foregoing, the mobile terminal related to the present invention has been described in terms of components according to functions. Hereinafter, the mobile terminal related to the present invention will be further described with reference to FIGS. 2 and 3 in view of the components according to the outline. Hereinafter, for simplicity of explanation, a slider type mobile terminal will be described as an example among various types of mobile terminals such as a folder type, a bar type, a swing type, a slider type, and the like. Therefore, the present invention is not limited to a slider type mobile terminal but can be applied to all types of mobile terminals including the above-mentioned type.

2 is a perspective view of a mobile terminal according to an embodiment of the present invention.

The mobile terminal of the present invention includes a first body 200 and a second body 205 configured to be slidable along at least one direction on the first body 200. In the case of a folder phone, the mobile terminal of the present invention includes a first body and a second body configured to fold or unfold at least one side of the first body.

The state where the first body 200 is disposed in a state of being overlapped with the second body 205 may be referred to as a closed configuration and the first body 200 may be referred to as a second body 205 may be referred to as an open configuration. The mobile terminal operates mainly in the standby mode in the closed state, but the standby mode is also released by the operation of the user. The mobile terminal operates mainly in a communication mode in an open state, but is also switched to a standby mode by a user's operation or a predetermined period of time.

The casing (casing, housing, cover, etc.) constituting the outer appearance of the first body 200 is formed by the first front case 220 and the first rear case 225. Various electronic components are installed in the space formed by the first front case 220 and the first rear case 225. At least one intermediate case may be additionally disposed between the first front case 220 and the first rear case 225.

The cases may be formed by injection molding of a synthetic resin or may be formed of a metal material such as stainless steel (STS) or titanium (Ti).

The display unit 151, the sound output module 152, the camera 121 or the first user input unit 210 may be disposed in the first body 200, specifically, the first front case 220.

The display unit 151 includes a liquid crystal display (LCD), organic light emitting diodes (OLED), and the like, which visually represent information.

In addition, the touch panel may be superimposed on the display unit 151 in a layer structure so that the display unit 151 may operate as a touch screen to enable information input by a user's touch.

The sound output module 152 may be implemented in the form of a speaker.

The camera 121 may be adapted to photograph an image or a moving image of a user or the like.

As in the case of the first body 200, the case constituting the outer appearance of the second body 205 is formed by the second front case 230 and the second rear case 235.

A second user input unit 215 may be disposed on the front face of the second body 205, specifically, the second front case 230. A third user input unit 245, a microphone 122 and an interface unit 170 may be disposed on at least one of the first front case 230 and the second rear case 235. [

The first to third user input units 210, 215 and 245 may be collectively referred to as a manipulating portion 130. In a tactile manner in which the user operates with a tactile impression, Can be employed.

For example, the user input unit may be implemented by a dome switch or a touch pad capable of receiving a command or information by a push or a touch operation of a user, or may be a wheel, a jog type, a joystick, or the like Can also be implemented.

In a functional aspect, the first user input unit 210 is for inputting commands such as start, end, scrolling, etc., and the second user input unit 215 is for inputting numbers, letters, symbols and the like.

In addition, the third user input unit 245 may operate as a hot-key for activating a special function in the mobile terminal.

The microphone 122 may be implemented in a form suitable for receiving voice, sound, etc. of the user.

The interface unit 170 is a path for allowing a mobile terminal related to the present invention to exchange data with an external device. For example, the interface unit 170 may be a wired or wireless connection terminal for connecting to an earphone, a port for short-range communication (for example, an IrDA port, a Bluetooth port, A wireless LAN port, etc.), or power supply terminals for supplying power to the mobile terminal.

The interface unit 170 may be a card socket for accommodating an external card such as a subscriber identification module (SIM) or a user identity module (UIM) or a memory card for storing information.

And a power supply unit 190 for supplying power to the mobile terminal is mounted on the second rear case 235 side.

The power supply unit 190 may be detachably coupled to a rechargeable battery, for example, for charging.

3 is a rear perspective view of the mobile terminal of FIG.

Referring to FIG. 3, a camera 121 may be further mounted on the rear surface of the second rear case 235 of the second body 205. The camera 121 of the second body 205 has a photographing direction which is substantially opposite to that of the camera 121 of the first body 200 and a different pixel from the camera 121 of the first body 200 Lt; / RTI >

For example, the camera 121 of the first body 200 has low pixels so that it is easy to capture a face of a user in the case of a video call or the like and transmit it to the other party, Since it is often the case that a subject is photographed and not immediately transferred, it is preferable to have a high pixel.

A flash 250 and a mirror 255 may be additionally disposed adjacent to the camera 121 of the second body 205. The flash 250 illuminates the subject when the subject of the subject is photographed by the camera 121 of the second body 205. The mirror 255 allows the user to illuminate the user's own face or the like when the user intends to take a picture of himself / herself (self-photographing) using the camera 121 of the second body 205.

The second rear case 235 may further include an acoustic output module 152.

The sound output module 152 of the second body 205 may implement a stereo function together with the sound output module 152 of the first body 200 and may be used for a call in a speakerphone mode.

In addition, an antenna 260 for receiving broadcast signals may be disposed on one side of the second rear case 235 in addition to the antenna for communication. The antenna 260 may be installed to be detachable from the second body 205.

A portion of the slide module 265 that slidably couples the first body 200 and the second body 205 is disposed on the first rear case 225 side of the first body 200.

The other part of the slide module 265 may be disposed on the second front case 230 side of the second body 205 and may not be exposed to the outside as in this figure.

The second camera 121 and the like are disposed on the second body 205, the present invention is not limited thereto.

For example, at least one of the configurations 260, 121 to 250, and 152 described as being disposed in the second rear case 235, such as the camera 121 of the second body, But it is also possible to mount it on the first rear case 225 mainly. In such a case, there is an advantage that the configuration (s) disposed in the first rear case 225 in the closed state is protected by the second body 205. Further, even if the camera 121 of the second body is not separately provided, the camera 121 of the first body may be configured to be rotatable so that the camera 121 of the second body can be photographed up to the photographing direction .

The terminal 100 shown in Figs. 1 to 3 is operable in a communication system capable of transmitting data through a frame or a packet, including a wired / wireless communication system and a satellite-based communication system .

Hereinafter, a communication system capable of operating a terminal according to the present invention will be described with reference to FIG.

The communication system may use different air interfaces and / or physical layers. For example, wireless interfaces that can be used by communication systems include, but are not limited to, Frequency Division Multiple Access ('FDMA'), Time Division Multiple Access ('TDMA'), Code Division Multiple Access (CDMA), Universal Mobile Telecommunications Systems (UMTS) (especially Long Term Evolution (LTE)), Global System for Mobile Communications (GSM) . Hereinafter, for the sake of convenience of description, the description will be limited to CDMA. However, the present invention is applicable to all communication systems including CDMA wireless communication systems.

4, the CDMA wireless communication system includes a plurality of terminals 100, a plurality of base stations (BSs) 270, and base station controllers (BSCs) 275 , And a mobile switching center ('MSC') 280. MSC 280 is configured to be coupled to a Public Switched Telephone Network (" PSTN ") 290, and is also configured to be coupled to BSCs 275. BSCs 275 may be coupled in pairs with BS 270 through a backhaul line. The backhaul line may be provided according to at least one of E1 / T1, ATM, IP, PPP, Frame Relay, HDSL, ADSL or xDSL. Thus, a plurality of BSCs 275 may be included in the system shown in FIG.

Each BS 270 may comprise at least one sector, and each sector may comprise an omnidirectional antenna or an antenna pointing to a particular direction of radial from BS 270. [ In addition, each sector may include two or more antennas of various types. Each BS 270 may be configured to support a plurality of frequency assignments and each of the plurality of frequency assignments has a specific spectrum (e.g., 1.25 MHz, 5 MHz, etc.).

The intersection of sector and frequency assignment may be referred to as a CDMA channel. BS 270 may be referred to as a Base Station Transceiver Subsystem (BTSs). In this case, the word "base station" may be referred to as a combination of one BSC 275 and at least one BS 270. [ The base station may also indicate a "cell site ". Alternatively, each of the plurality of sectors for a particular BS 270 may be referred to as a plurality of cell sites.

4, a broadcasting transmitter (BT) 295 transmits a broadcasting signal to the terminals 100 operating in the system. The broadcast module 111 shown in FIG. 1 is provided in the terminal 100 to receive a broadcast signal transmitted by the BT 295.

In addition, FIG. 4 illustrates several Global Positioning System ('GPS') satellites 300. The satellites 300 help to locate at least one of the plurality of terminals 100. Although two satellites are shown in Figure 4, useful location information may be obtained by two or more satellites. The GPS module 115 shown in FIG. 1 cooperates with satellites 300 to obtain desired location information. Here, you can track your location using all of the technologies that can track your location, as well as your GPS tracking technology. Also, at least one of the GPS satellites 300 may optionally or additionally be responsible for satellite DMB transmission.

Among the typical operations of a wireless communication system, BS 270 receives reverse link signals from various terminals 100. [ At this time, the terminals 100 are in the process of connecting a call, transmitting or receiving a message, or performing another communication operation. Each of the reverse link signals received by the particular base station 270 is processed by the particular base station 270. The data resulting from the processing is transmitted to the connected BSC 275. The BSC 275 provides call resource allocation and mobility management functions, including the organization of soft handoffs between the base stations 270. The BSC 275 also transmits the received data to the MSC 280 and the MSC 280 provides additional transmission services for connection with the PSTN 290. [ Similarly, the PSTN 290 connects to the MSC 280, the MSC 280 connects to the BSCs 275, and the BSCs 275 communicate with the BSs 270 ).

A method of inputting information using a proximity touch and / or a real-touch in the mobile terminal configured as described above will be described.

In the present invention, the proximity-touch means that the pointer is not actually touched on the screen but approaches a predetermined distance from the screen. Preferably, the pointer includes a tool for actually touching or touching a specific portion of the display screen, i.e., a stylus fan, a finger, or the like.

As shown in FIG. 1, the controller 180 according to an exemplary embodiment of the present invention can perform a control operation of a mobile terminal by recognizing a proximity touch as a predetermined signal input. That is, when the pointer approaches the screen within a predetermined distance from the screen, the mobile terminal 100 according to the embodiment of the present invention recognizes the pointer as a proximity touch, Password). The predetermined distance represents a vertical distance between the pointer and the screen.

In the present invention, real-touch refers to a case where a pointer is actually touched on the screen. The actual touch is achieved by providing a touch screen on the display device. In this case, the controller 180 recognizes the actual touch as a predetermined signal input and can perform a control operation of the mobile terminal.

As shown in FIG. 1, the mobile terminal 100 according to an embodiment of the present invention can sense a proximity touch and an actual touch through the sensing unit 140. The sensing unit 140 may include various sensors for performing various sensing functions, and may include a proximity sensor and a tactile sensor for sensing proximity and actual touches.

The proximity sensor detects the presence or absence of an object approaching the detection surface of the switch or an object existing in the vicinity thereof without mechanical contact using the force of the electromagnetic field or infrared rays. Preferably, the proximity sensor may be configured as a proximity switch for outputting an ON / OFF output when the sensing object falls within a predetermined sensing range without mechanical contact, as opposed to outputting an ON / OFF output through mechanical contact.

Therefore, the proximity sensor composed of the proximity switch has a considerably long life and a very high utilization rate than the contact type switch. The operation principle of the proximity sensor composed of the proximity switch is to oscillate the high frequency of the stationary wave in the oscillation circuit, and when the sensing object approaches the vicinity of the sensor sensing surface, the oscillation amplitude of the oscillation circuit attenuates or stops. The presence or absence of the detected object is detected.

The tactile sensor refers to a sensor that detects contact of a specific object with a degree or more that a person feels. The tactile sensor can sense various information such as the roughness of the contact surface, the rigidity of the contact object, and the temperature of the contact point.

Meanwhile, the sensing unit 140 may sense the proximity distance and the proximity speed as a detailed operation of the proximity touch. Proximity refers to the distance between the screen and the pointer. In particular, the minimum proximity means the shortest distance between the screen and the pointer. Also, the proximity speed includes a speed at which the pointer approaches the screen or a speed at which the pointer moves away from the screen.

The sensing unit 140 may sense a touch-drag or a proximity-drag in relation to the actual touch and / or the proximity touch. The sensing unit 140 may sense the drag direction, the drag speed, and the drag length of the touch drag and / or the proximity drag. The touch drag refers to a case where the touch point is dragged while the actual touch is maintained, and the proximity drag refers to a case where the touch point is dragged while the proximity touch is maintained.

In addition, in the embodiment of the present invention, a predetermined point on the screen is touched by a pointer, which means that the pointer is located at a position vertically corresponding to the predetermined point and is recognized as a proximity touch.

Hereinafter, a case where the mobile terminal 100 has a touch screen will be described as an example.

The mobile terminal 100 according to an embodiment of the present invention can control the information input function using the proximity touch and can control the screen display based on the relationship between the actual touch and the proximity touch. For example, a scroll function, a zoom function, a screen rotation function, and an information display function can be performed on the basis of the relationship between the actual touch and the proximity touch.

The proximity sensor senses the proximity of the touch according to the change in capacitance that occurs when the body touches the surface of the touch screen. FIG. 5 is an example in which the proximity touch sensing area sensed by the proximity sensor is divided into a plurality of proximity positions (or proximity distances). In FIG. 5, the number of the proximity positions may vary depending on the performance of the proximity sensor and the object to be controlled. In the present invention, four proximity positions D0 to D3 are shown. At this time, the proximity touch means a state where the pointer is positioned outside the proximity distance D0 to D3.

However, when the human body approaches the touch screen in the proximity touch sensing area shown in FIG. 5, not all persons generate the same electrostatic capacitance. That is, a change in the minute electrostatic capacitance And the set value. Therefore, even if the user moves in the proximity touch sensing area, the recognition rate of each user is different. Therefore, it is necessary to calibrate the recognition rate of the proximity touch sensor for each user.

In order to perform the method according to the present invention, a proximity correction screen may be displayed on the display unit 151 of the mobile terminal. Preferably, the proximity correction screen may be displayed through a separate key input or a touch on the menu, and the proximity correction screen may display a predetermined proximity touch position (minimum height) and a minimum proximity touch position (maximum height) A reference figure (circles and various polygons) and a guide figure whose size is changed according to the movement of the pointer are displayed. At this time, the pointer represents any one of a tool for actually touching or touching a specific portion of the display screen, that is, a stylus fan or a finger.

When the pointer is actually touched, the guide figure is displayed as a point, and when the pointer is touched, the guide figure is changed in the same shape as the reference figure.

In addition, the present invention can calibrate the recognition rate difference caused by the difference in the proximity distance by using the solids that can keep the maximum / minimum height constant. In this case, the solid matter is made of a material which does not change the capacitance generated when the body is brought into contact.

6 is a flowchart illustrating a method of calibrating a recognition rate of a proximity touch in a mobile terminal according to an embodiment of the present invention.

As shown in FIG. 6, the control unit 180 may display a screen for correcting the recognition rate of the proximity touch according to a user's touch (or a separate key input) (S10). If a touch is detected in the state that the screen is shown, the controller 180 determines whether the touch is an actual touch (S11)

As a result of the determination, if an actual touch is generated, the control unit 180 displays a first reference circle, for example, as a predetermined reference shape representing a minimum proximity position with the touch point (if the finger falls off the screen) (S12). 5, the touch point is changed to a guide circle when the finger falls off the screen, and the guide circle is gradually enlarged in the same shape as the first reference circle .

Accordingly, when the pointer moves away from the touch point of the touch screen and moves away from the screen, the size of the guide circle gradually increases as the proximity position (or proximity distance) increases (S13). At this time, the pointer represents any one of a tool for actually touching or touching a specific portion of the display screen, that is, a stylus fan or a finger.

Thereafter, when the proximity position is further increased so that the size of the guide circle becomes equal to the size of the first base circle, the controller 180 sets the capacitance at the corresponding position to the capacitance at the minimum adjacent position, The minimum value is corrected (S14).

On the other hand, if the proximity touch is generated in step S11, the controller 180 displays a guide circle indicating a close position and a second reference circle indicating a maximum proximity position on the screen (S15) . The maximum proximity position corresponds to the outermost position D0 in FIG.

In this state, when the pointer approaches the touch point of the touch screen, the size of the guide circle gradually decreases as the proximity position (or proximity distance) decreases (S16). Thereafter, when the proximity position is further reduced and the size of the guide circle becomes equal to the size of the second reference circle, the capacitance at the position is set to the capacitance at the maximum proximity position, thereby correcting the proximity touch maximum value S17).

FIG. 7 is a flowchart illustrating in detail a method of setting a proximity touch minimum value in FIG.

As shown in FIG. 7, the control unit 180 displays a screen for correcting the recognition rate of the proximity touch according to a user's touch (or a separate key input).

When a finger touches the touch screen on the screen, the controller 180 displays one reference circle indicating the minimum proximity position together with the corresponding touch point (S20, S21).

In this state, when the finger moves away from the screen, the touch point changes to a guide circle, and the size of the touch point gradually increases as the proximity position (or proximity distance) increases (S22, S23).

If the finger further moves away from the screen, the control unit 180 compares the size of the guide source 52 with the size of the first reference circle (S24) When it is equal to the size of the first reference circle, the controller 180 recognizes that the finger has reached the minimum proximity position, and corrects the capacitance at the position to the proximity touch minimum value (S25).

8 is a diagram showing an example of performing the method shown in FIG.

When a finger is touched on the recognition rate correction screen, the control unit 180 displays one reference circle 51 indicating the minimum proximity position together with the touch point 50. [

In this state, when the finger falls off the screen, the touch point 50 is changed to the guide circle 52. The guide circle 52 increases or decreases in size as the proximity position (or proximity distance) increases or decreases.

Thereafter, when the finger further moves away from the screen and becomes equal to the size of the guide circle 52 and the size of the first reference circle, the controller 180 recognizes that the finger has reached the minimum proximity position, The capacitance is corrected by the proximity touch minimum value.

In this way, the present invention improves the recognition rate by correcting the recognition rate due to the difference in capacitance, thereby enabling the user to use a more accurate proximity touch function.

FIG. 9 is a flowchart illustrating in detail a method of setting a proximity touch minimum value in FIG.

As shown in FIG. 9, the control unit 180 may display a screen for correcting the recognition rate of the proximity touch according to a user's touch (or a separate key input). In addition, the operation of Fig. 9 can be performed continuously with respect to the operation of Fig. When the user approaches the proximity touch sensing area on the screen, the controller 180 displays a guide circle indicating the current proximity position and a reference circle indicating the maximum proximity position on the screen (S30, S31). The maximum proximity position corresponds to D0 located innermost in FIG.

In this state, as the finger is drawn closer to the screen, the size of the guide circle gradually decreases as the proximity position (or proximity distance) increases (S32, S33).

If the finger is closer to the screen, the control unit 180 compares the size of the guide circle 52 with the size of the first reference circle (S34) If the finger is equal to the size of the first reference circle, the controller 180 recognizes that the finger has reached the maximum proximity position D0, and corrects the capacitance at the position to the proximity touch maximum value (S35).

10 is a diagram showing an example of performing the method shown in FIG.

When the finger is touched in the state in which the proximity touch minimum value is corrected or the finger is touched in the recognition rate correction screen, the control unit 180 displays the guide circle 52 indicating the proximity position and the reference circle 53 indicating the maximum proximity position.

In this state, when the finger comes close to the screen, the guide circle 52 is further reduced in size as the proximity position (or proximity distance) decreases.

Thereafter, when the finger is closer to the screen and becomes equal to the size of the guide circle 52 and the size of the first reference circle, the controller 180 recognizes that the finger has reached the maximum proximity position, The capacitance is corrected by the proximity touch maximum value. In this way, the present invention improves the recognition rate by correcting the recognition rate due to the difference in capacitance, thereby enabling the user to use a more accurate proximity touch function.

In the embodiment of the present invention, the operation of FIG. 7 may be performed first, the operation of FIG. 9 may be performed later, the operation of FIG. 9 may be performed first, and the operation of FIG. 7 may be performed later. That is, if the actual touch is first performed in the recognition rate correction screen, the process proceeds from FIG. 7 to FIG. 9, and if the proximity touch is performed first, FIG. Thus, the reference circle and the guide circle appearing on the screen are determined.

In the recognition rate correction method shown in FIGS. 6 to 10, the comparison of the reference circle and the guide circle that the finger reaches the minimum proximity position or the maximum proximity position is performed and then the proximity touch minimum value and the maximum value are set Or corrected). However, the present invention is not limited thereto, and the present invention may have all the persons have the same minimum proximity position or maximum proximity position, and may set (or correct) the touch minimum value and the maximum value at the corresponding position. As shown in FIG. 11, the solid object is a nonconductor having a maximum height and a minimum height and is composed of a material (non-conductive material, thimble, etc.) and a shape (ring shape) that does not affect the capacitance measurement of the finger.

FIG. 12 is a flowchart illustrating a method of calibrating a recognition rate of a proximity touch using a solid having a maximum height and a minimum height, and FIG. 13 is a view illustrating an example of performing the method shown in FIG.

As shown in Figs. 12 and 13, the user places the solids 54 having the maximum height and the minimum height on the touch screen in a mode for calibrating the recognition rate of the proximity touch. The control unit 180 detects the position of the solid object 54 and sets the capacitance of the finger touched at the maximum height of the solid object 54 as the proximity touch minimum value at steps S40 and S41, The capacitance of the finger touched at the height is set to the proximity touch maximum value (S42).

Further, according to the embodiment of the present invention, the recognition rate correction method of proximity touch can be implemented as a 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 mobile terminal according to the present invention is not limited in the configuration and the method of the above-described embodiments, but the embodiments may be modified such that all or some of the embodiments are selectively And may be configured in combination.

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

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

3 is a rear perspective view of a mobile terminal according to an embodiment of the present invention;

4 is a block diagram of a wireless communication system in which a mobile terminal may operate in accordance with an embodiment of the present invention.

FIG. 5 illustrates an example in which the proximity touch sensing area detected by the proximity sensor is divided into a plurality of proximate positions in the present invention.

6 is a flowchart illustrating a method of calibrating a recognition rate of a proximity touch in a mobile terminal according to an exemplary embodiment of the present invention.

FIG. 7 is a flowchart illustrating in detail a method for setting a proximity touch minimum value in FIG. 6;

8 shows an example of performing the method shown in Fig.

FIG. 9 is a flowchart illustrating in detail a method for setting a proximity touch minimum value in FIG. 6; FIG.

10 is a view showing an example of performing the method shown in Fig. 9. Fig.

11 is a view showing an example of a solid having a maximum height and a minimum height;

12 is a flowchart illustrating a method of calibrating a recognition rate of a proximity touch using a solid having a maximum height and a minimum height in a mobile terminal according to an embodiment of the present invention.

13 shows an example of performing the method shown in Fig.

DESCRIPTION OF REFERENCE NUMERALS FOR MAJOR PART OF DRAWINGS ********

110: wireless communication unit 111: broadcast receiving module

112: mobile communication module 113; Wireless Internet Module

140; Sensing unit 150: output unit

151: display unit 160: memory

180:

Claims (16)

A display unit having a touch screen; A sensing unit sensing proximity touch; And a control unit for correcting a recognition rate caused by a capacitance difference of a pointer at a maximum proximity position and a minimum proximity position at a proximity touch, The control unit A reference figure indicating a maximum proximate position and a minimum proximity position of the pointer and a guide circle whose size is increased or decreased in accordance with the movement of the pointer are displayed so that when the guide figure coincides with the reference figure by increasing or decreasing the position of the pointer, And the minimum capacitance is set. 2. The apparatus of claim 1, wherein the pointer A stylus fan, and a finger. The method of claim 1, wherein the maximum proximity position and the minimum proximity position are Wherein the change of the proximity position of the point is recognized in the proximity touch detection area or is determined using the solid having the maximum and minimum heights. delete 2. The method of claim 1, A circle, and a polygon. The apparatus of claim 1, wherein the control unit A reference figure that indicates a minimum proximity position and a guide circle that increases according to a movement of the pointer are displayed. When a proximity touch is detected, a reference figure that indicates a maximum proximity position, To the mobile terminal. The apparatus of claim 1, wherein the control unit When solids with maximum and minimum positions are located on the touch screen The minimum capacitance is corrected when the pointer touches the maximum position, and the maximum capacitance is corrected when the pointer is touched at the minimum position. 8. The method of claim 7, wherein the solids Wherein the conductive member is made of a material that does not affect the electrostatic capacity. Displaying a proximity touch correction screen; Detecting an initial touch by a pointer on the correction screen; Displaying different guide figures for correcting the recognition rate according to the type of the detected touch and a guide circle which is increased or decreased according to movement of the pointer; And comparing the guide figure with the reference figure according to a change in the position of the pointer, thereby correcting the maximum capacitance and the minimum capacitance. 10. The method of claim 9, And a polygon. The method of claim 1, 10. The method of claim 9, wherein the pointer is one of a stylus fan and a finger. 10. The method as claimed in claim 9, wherein if the sensed touch is an actual touch, a reference figure indicating a minimum proximity position and a guide circle increased according to a movement of the pointer are displayed. 10. The method as claimed in claim 9, wherein when the detected touch is a proximity touch value, a guide figure which is reduced according to a movement of a pointer and a reference figure indicating a maximum proximity position is displayed. 10. The method of claim 9, wherein the step of calibrating the capacitance comprises: Wherein the maximum capacitance and the minimum capacitance are set when the guide figure conforms to the reference figure due to an increase or decrease in the proximity position. Displaying a proximity touch correction screen; Sensing a solids having a maximum and a minimum height on the correction screen; Setting a capacitance of a pointer touched to a maximum height of the solids to a proximity touch minimum value; And setting a capacitance of a pointer touched to a minimum height of the solid object to a proximity touch maximum value. 16. The method of claim 15, Wherein the touch sensor is made of a material that does not affect the electrostatic capacitance.

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