KR101651477B1 - Mobile terminal and operation method thereof - Google Patents

Abstract

The present invention relates to a portable terminal and an operation method thereof. A method of operating the portable terminal includes displaying a plurality of areas on the display unit in which zoom ratio change rates are differently set in a zoom magnification changing mode in an identifiable manner and selecting at least one of the plurality of areas, Adjusts the zoom ratio at a unit magnification, and enlarges or reduces an image according to the adjusted zoom magnification, and displays the enlarged or reduced image on the display unit. According to the present invention, the display magnification can be precisely controlled through a plurality of regions having different rate of change.

Description

The present invention relates to a mobile terminal and an operation method thereof,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a portable terminal and an operation method thereof, and more particularly, to a portable terminal providing a user interface for more precisely controlling functions and an operation method thereof.

A portable terminal is a portable device having one or more functions capable of carrying out voice and video communication, capable of inputting and outputting information, and storing data, while being portable. As the functions of such portable terminals are diversified, they can provide complex functions such as photographing and photographing of movies, reproduction of music files or video files, reception of games, broadcasting, and wireless Internet.

In order to realize a complicated function, a mobile terminal implemented in the form of a multimedia device is being applied variously in terms of hardware and software. For example, there is a user interface environment in which a user can easily and conveniently search for or select a function. In addition, a two-sided LCD (Liquid Crystal Display) or a front touch screen may be applied to the portable terminal.

However, even though the front touch screen is applied to the portable terminal to enlarge a space in which a user command can be received, even in adjusting the zoom magnification required for precise operation, zooming in or zooming out There is a problem in that it is difficult to set the zoom-in or zoom-out as desired by the user.

Accordingly, it is an object of the present invention to provide a mobile terminal and a method thereof, which can precisely control a display magnification such as a zoom magnification through a plurality of regions set with different increase / decrease rates.

According to another aspect of the present invention, there is provided a method of operating a portable terminal, the method comprising: displaying a plurality of areas in which a zoom ratio is varied in a zoom magnification changing mode in a display unit; Adjusting the zoom magnification by a unit magnification corresponding to the selected region when at least one region among the plurality of regions is selected; And enlarging or reducing the image according to the adjusted zoom magnification and displaying the enlarged or reduced image on the display unit.

According to another aspect of the present invention, there is provided a portable terminal including: a touch screen; And a display magnification changing mode in which the display area of the touch screen is divided into a plurality of areas, a variation ratio of the magnification of the image to each of the plurality of areas is set differently, .

According to the present invention, the display magnification can be precisely controlled through a plurality of regions having different rate of change.

1 is a block diagram of a portable terminal according to an exemplary embodiment of the present invention,
FIG. 2 is a perspective view of a mobile terminal according to an exemplary embodiment of the present invention,
FIG. 3 is a rear perspective view of the portable terminal shown in FIG. 2,
4 is a flowchart illustrating a method of displaying an image by adjusting a zoom magnification of an image according to an embodiment of the present invention.
FIG. 5 is a flowchart illustrating a method of selecting a specific region according to an exemplary embodiment of the present invention and adjusting a zoom magnification according to the selected region,
FIG. 6 is a flowchart illustrating a method of adjusting a zoom magnification by selecting a plurality of regions according to an embodiment of the present invention. FIG.
FIG. 7 is a diagram illustrating a process of adjusting a zoom magnification among display magnifications according to the first embodiment of the present invention; FIG.
FIG. 8 is a view illustrating a screen capable of adjusting a zoom magnification among display magnifications according to a second embodiment of the present invention; FIG.
FIG. 9 is a view for explaining a method of adjusting a zoom magnification and an operation speed in one screen according to an embodiment of the present invention. Referring to FIG.

Hereinafter, the present invention will be described in detail with reference to the drawings.

The portable terminal described in this specification includes a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), and navigation. In addition, suffixes "module" and " part "for the components used in the following description are given merely for convenience of description, and do not give special significance or role in themselves. Accordingly, the terms "module" and "part" may be used interchangeably.

FIG. 1 is a block diagram of a portable terminal according to an exemplary embodiment of the present invention. Referring to FIG. Referring to FIG. 1, a mobile terminal according to an embodiment of the present invention will be described in terms of components according to functions.

1, the portable 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, and a power supply unit 190. When such components are implemented in practical applications, two or more components may be combined into one component, or one component may be divided into two or more components as necessary.

The wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 113, a wireless Internet module 115, a short distance communication module 117, and a GPS module 119.

The broadcast receiving module 111 receives at least one of a broadcast signal and broadcast related information from an external broadcast management server through a broadcast channel. At this time, the broadcast channel may include a satellite channel, a terrestrial channel, and the like. The broadcast management server may refer to a server for generating and transmitting at least one of a broadcast signal and broadcast related information and a server for receiving at least one of the generated broadcast signal and broadcast related information and transmitting the broadcast signal to the 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 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 can also be provided through a mobile communication network, in which case it can be received by the mobile communication module 113. Broadcast-related information can exist in various forms.

The broadcast receiving module 111 receives broadcast signals using various broadcast systems and can receive digital broadcast signals using the digital broadcast system. In addition, the broadcast receiving module 111 may be configured to be suitable for all broadcasting systems that provide broadcasting signals, as well as the digital broadcasting system. The broadcast signal and the broadcast-related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 113 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. Here, the wireless signal may include various types of data according to a voice call signal, a video call signal, or a text / multimedia message transmission / reception.

The wireless Internet module 115 refers to a module for wireless Internet access, and the wireless Internet module 115 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) and the like can be used as wireless Internet technologies.

The short-range communication module 117 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.

A GPS (Global Position System) module 119 receives position information from a plurality of GPS satellites.

The 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 123. 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 123 receives an external sound signal by 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 113 and output when the voice data is in the call mode. The microphone 123 may be a variety of noise reduction algorithms for eliminating noise generated in receiving an external sound signal.

The user input unit 130 generates key input data that the user inputs to control the operation of the terminal. The user input unit 130 may include a key pad, a dome switch, and a touch pad (static / static) capable of receiving commands or information by a push or touch operation of a user. The user input unit 130 may be a jog wheel for rotating the key, a jog type or a joystick, or a finger mouse. 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 portable terminal 100 such as the open / close state of the portable terminal 100, the position of the portable terminal 100, Thereby generating a sensing signal. For example, when the portable 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, a sensing function related to whether or not the power supply unit 190 is powered on, whether the interface unit 170 is coupled to an external device, and the like can be handled.

The sensing unit 140 may include a proximity sensor 141, a pressure sensor 143, a motion sensor 145, and the like. The proximity sensor 141 can detect the presence of an object approaching the portable terminal 100 or an object existing near the portable terminal 100 without mechanical contact. The proximity sensor 141 can detect a nearby object by using a change in the alternating magnetic field or a change in the static magnetic field, or a rate of change in capacitance. The proximity sensor 141 may be equipped with two or more sensors according to the configuration.

The pressure sensor 143 can detect whether the pressure is applied to the portable terminal 100, the magnitude of the pressure, and the like. The pressure sensor 143 may be installed at a portion where the pressure of the portable terminal 100 is required depending on the use environment. When the pressure sensor 143 is installed on the display unit 151, the touch input through the display unit 151 and the pressure applied by the touch input The pressure touch input can be identified. Also, the magnitude of the pressure applied to the display unit 151 at the time of the pressure touch input can be determined according to the signal output from the pressure sensor 143. [

The motion sensor 145 detects the position and movement of the portable terminal 100 using an acceleration sensor, a gyro sensor, or the like. An acceleration sensor that can be used for the motion sensor 145 is a device that converts an acceleration change in one direction into an electric signal and is widely used along with the development of MEMS (micro-electromechanical systems) technology. The acceleration sensor measures the acceleration of a small value built in the airbag system of an automobile and recognizes the minute motion of the human hand and measures the acceleration of a large value used as an input means such as a game There are various types. Acceleration sensors are usually constructed by mounting two or three axes in one package. Depending on the usage environment, only one axis of Z axis is required. Therefore, when the acceleration sensor in the X-axis direction or the Y-axis direction is used instead of the Z-axis direction for some reason, the acceleration sensor may be mounted on the main substrate by using a separate piece substrate.

The gyro sensor is a sensor for measuring the angular velocity, and it can sense the direction of rotation with respect to the reference direction.

The output unit 150 is for outputting an audio signal, a video signal, or an alarm signal. The output unit 150 may include a display unit 151, an audio output module 153, an alarm unit 155, and a haptic module 157.

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

Meanwhile, as described above, when the display unit 151 and the touch pad have a mutual layer structure to constitute a touch screen, the display unit 151 may be an input device capable of inputting information by a user's touch in addition to the output device Can also be used.

If the display unit 151 is configured as a touch screen, it may include a touch screen panel, a touch screen panel controller, and the like. In this case, the touch screen panel is a transparent panel attached to the outside, and can be connected to the internal bus of the portable terminal 100. The touch screen panel keeps a watch on the contact result, and if there is a touch input, sends the corresponding signals to the touch screen panel controller. The touch screen panel controller processes the signals, and then transmits corresponding data to the controller 180 so that the controller 180 can determine whether the touch input has been made and which area of the touch screen has been touched.

The display unit 151 may be formed of an e-paper. Electronic paper (e-Paper) is a kind of reflective display, and has excellent visual characteristics such as high resolution, wide viewing angle and bright white background as conventional paper and ink. The electronic paper (e-paper) can be implemented on any substrate such as plastic, metal, paper, and the image is retained even after the power is shut off, and the battery life of the portable terminal 100 is long Can be maintained. As the electronic paper, a hemispherical twist ball filled with a telephone can be used, or an electrophoresis method and a microcapsule can be used.

In addition, 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- (3D display). There may be two or more display units 151 according to the implementation mode of the portable terminal 100. [ For example, the portable terminal 100 may include an external display unit (not shown) and an internal display unit (not shown) at the same time.

The audio output module 153 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, a broadcast reception mode, The sound output module 153 outputs sound signals related to functions performed in the portable terminal 100, for example, a call signal reception tone, a message reception tone, and the like. The sound output module 153 may include a speaker, a buzzer, and the like.

The alarm unit 155 outputs a signal for notifying the occurrence of an event of the portable terminal 100. Examples of events occurring in the portable terminal 100 include call signal reception, message reception, and key signal input. The alarm unit 155 outputs a signal for notifying the 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. The alarm unit 155 can output a signal to notify when a call signal is received or a message is received. Also. When the key signal is inputted, the alarm unit 155 can output a signal as a feedback to the key signal input. The user can recognize the occurrence of an event through the signal output by the alarm unit 155. A signal for notifying the occurrence of an event in the portable terminal 100 may also be output through the display unit 151 or the sound output module 153. [

The haptic module 157 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 157 is a vibration effect. When the haptic module 157 generates vibration with a haptic effect, the intensity and pattern of the vibration generated by the haptic module 157 can be converted, and the different vibrations can be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 157 may be provided with a function of stimulating by a pin arrangement vertically moving with respect to the contact skin surface, an effect of stimulating air through the injection or suction force of the air through the injection port or the suction port, The effect of stimulation through contact of an electrode (eletrode), the effect of stimulation by electrostatic force, and the effect of reproducing a cold sensation using a device capable of endothermic or exothermic can be generated. The haptic module 157 can be implemented not only to transmit the tactile effect through direct contact but also to feel the tactile effect through the muscular sense of the user's finger or arm. The haptic module 157 may include two or more haptic modules 157 according to the configuration of the portable terminal 100.

The memory 160 may store a program for processing and controlling the control unit 180 and may store a function for temporarily storing input or output data (e.g., a phone book, a message, a still image, .

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 , And a ROM. ≪ / RTI > In addition, the portable terminal 100 may operate a web storage for storing the memory 150 on the Internet.

The interface unit 170 serves as an interface with all external devices connected to the portable terminal 100. Examples of the external device connected to the portable terminal 100 include a wired / wireless headset, an external charger, a wired / wireless data port, a memory card, a SIM (Subscriber Identification Module) card, a UIM An audio input / output (I / O) terminal, a video I / O (input / output) terminal, and an earphone. The interface unit 170 receives data from the external device or receives power from the external device and transmits the data to each component in the portable terminal 100 so that data in the portable terminal 100 can be transmitted to the external device .

The interface unit 170 is a path through which power from the cradle connected when the portable terminal 100 is connected to the external cradle is supplied to the portable terminal 100 or various command signals inputted from the cradle by the user are carried And may be a passage to be transmitted to the terminal 100.

The controller 180 typically controls the operation of the respective units to control the overall operation of the mobile terminal 100. For example, voice communication, data communication, video communication, and the like. In addition, the control unit 180 may include a multimedia playback module 181 for multimedia playback. The multimedia playback module 181 may be configured in hardware in the controller 180 or separately from software in the controller 180. [

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

The mobile terminal 100 having such a configuration can be configured to be 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. have.

The portable terminal according to the present invention has been described in terms of components according to functions. Hereinafter, with reference to FIG. 2 and FIG. 3, the portable terminal related to the present invention will be described in more detail from the viewpoint of the components according to the external form. Hereinafter, for convenience of explanation, a bar-type portable terminal having a front touch screen among various types of portable terminals such as a folder type, a bar type, a swing type, a slider type and the like will be described as an example. However, the present invention is not limited to a bar-type portable terminal, but can be applied to all types of portable terminals including the above-mentioned type.

2 is a perspective view of a portable terminal according to an embodiment of the present invention. Referring to FIG. 2, the case of the present portable terminal 100 is formed by a front case 100A-1 and a rear case 100A-2. Various electronic components are incorporated in the space formed by the front case 100A-1 and the rear case 100A-2. At least one intermediate case may be additionally disposed between the front case 100A-1 and the rear case 100A-2. Such cases may be formed by injection molding of a synthetic resin, or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

The display unit 151, the first sound output module 153a, the first camera 121a, and the first user input unit 130a may be disposed in the main body, specifically, the first front case 100A-1. The second user input unit 130b, the third user input unit 130, and the microphone 123 may be disposed on the side of the rear case 100A-2.

The display unit 151 includes a liquid crystal display (LCD), an OLED (Organic Light Emitting Diodes), and the like that visually express information. The display unit 151 may be configured to operate as a touch screen by inputting information by a user's touch by superimposing the touch pad on the display unit 151 in a layer structure.

The first acoustic output module 153a may be implemented in the form of a receiver or a speaker. The first camera 121a may be adapted to photograph an image or a moving image of a user or the like. The microphone 123 may be implemented in a form suitable for receiving voice, sound, etc. of the user.

The first to third user input units 130a, 130b, and 130c may be collectively referred to as a user input unit 130 and may be employed in any manner as long as the user operates in a tactile manner with a tactile impression.

For example, the user input unit 130 may be embodied as a dome switch or a touch pad capable of receiving a command or information by a push or touch operation of a user, or may be a wheel, a jog type, a joystick, Or the like. In terms of functions, the first user input unit 130a is for inputting a command such as start, end, and call, and the second user input unit 130b is for inputting an operation mode selection or the like. Also, the third user input unit 130c may operate as a hot-key for activating a special function in the portable terminal 100. [

When the user's finger is close to the display unit 151, the proximity sensor 141 installed on the first body or the like senses it and outputs a proximity signal. At this time, it is possible to configure to output different proximity signals depending on the distance that the user's finger is located. In general, a distance at which a detection object approaches a proximity sensor and a proximity signal is output is referred to as a detection distance. When a plurality of proximity sensors having different detection distances are used in this way and the proximity signals output from the respective proximity sensors are compared, Can be known.

It is also possible to arrange a plurality of proximity sensors having different detection areas to determine whether proximity signals are output from which proximity sensors among the proximity sensors and to determine which area of the display unit 151 the proximity object approaches, Whether or not the display unit 151 is moving close to the display unit 151, and the like. Accordingly, the control unit 180 may select a touch key corresponding to a position close to the user's finger or the like, and control to output a corresponding vibration signal.

When the user tilts or shakes the portable terminal, the gyro sensor 142 detects the movement of the portable terminal. The gyro sensor 142 generates a signal corresponding to the motion of the portable terminal and outputs the signal to the controller 180. The controller 180 detects motion related information such as a direction, an angle, a velocity, an intensity, and a current position of the portable terminal from signals generated by the gyro sensor 142.

The control unit 180 tracks the movement of the portable terminal through the information detected from the signal generated by the gyro sensor 142. The information that can be detected from the signal generated by the gyro sensor may be different depending on the components constituting the gyro sensor 142. [ The portable terminal is provided with a gyro sensor 142 according to motion information of the portable terminal to be detected. At least one or more gyro sensors 142 may be provided in the portable terminal. The control unit 180 can control the gyro sensor 142 to operate only when a specific application is executed corresponding to the information to be detected.

3 is a rear perspective view of the portable terminal shown in FIG. 3, the fourth user input unit 130d, the fifth user input unit 130d, and the interface unit 170 may be disposed on the side of the rear case 100A-2, and the rear case 100A-2 The second camera 121b may be further mounted on the rear surface of the second camera 121b.

The second camera 121b has a photographing direction substantially opposite to that of the first camera 121a, and may have pixels different from those of the first camera 121a. For example, the first camera 121a 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 the face to the other party. The second camera 121b photographs a general object and immediately transmits It is preferable to have a high pixel.

A mirror 125 and a flash 126 may be further disposed adjacent to the second camera 121b. The mirror 125 enables 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 second camera 121b. The flash 126 illuminates the subject when the subject is photographed by the second camera 121b.

A second sound output module (not shown) may be further disposed in the rear case 100A-2. The second sound output module may implement the stereo function together with the first sound output module 153a, and may be used for talking in the speakerphone mode.

An antenna (not shown) for receiving broadcasting signals may be disposed on one side of the second rear case 100A-2 in addition to the antenna for communication. The antenna may be installed to be capable of being drawn out from the rear case 100A-2.

The interface unit 170 is a path for allowing the portable terminal 100 to exchange data with an external device. For example, the interface unit 170 may be at least one of a connection terminal for connecting to an earphone, a port for short-range communication, or power supply terminals for supplying power to the portable terminal 100, have. The interface unit 170 may be a card socket that accommodates an external card such as a SIM (subscriber identification module) or a UIM (user identity module), a memory card for information storage, and the like.

A power supply unit 190 for supplying power to the portable terminal is mounted on the rear case 100A-2. The power supply unit 190 may be a rechargeable battery, for example, and may be detachably coupled to the rear case 100A-2 for charging or the like.

In the above description, the second camera 121b and the like are disposed in the rear case 100A-2, but the present invention is not limited thereto. Also, the second camera 12b may be separately provided, but the first camera 121a may be configured to be rotatable so that the first camera 121a can be photographed up to the photographing direction of the second camera 121b.

4 is a flowchart illustrating a method of displaying an image by adjusting a zoom magnification of an image according to an embodiment of the present invention.

As shown in FIG. 4, the controller 180 displays an image on the display unit 151 at a predetermined zoom scale according to a user command or the like (S410). The image may be a preview image of the camera 121 for photographing or an image reproduced by the multimedia reproduction module 181. [ For convenience of explanation, the preview image of the camera 121 will be mainly described. And the image is displayed according to a predetermined zoom magnification.

In a state where an image is displayed on the display unit 151, the controller 180 may set the mode of the portable terminal to a zoom change mode for adjusting the zoom magnification of the image (S420). For example, the user can select an icon representing the zoom while the preview image is displayed. Then, the controller 180 sets the mode of the portable terminal to the zoom change mode.

If the mode of the portable terminal is set to the zoom change mode, the controller 180 identifies the plurality of regions having different zoom rate ratios differently on the display unit 151 (S430). Specifically, the control unit 180 may divide the display area of the display unit 151 into a plurality of areas based on the vertical direction. Then, the increase / decrease ratio of the zoom magnification may be set differently for each of the plurality of areas, and the set increase / decrease ratio may be displayed for each of the plurality of areas so that the plurality of areas can be displayed identifiably.

If a command for selecting a specific region among the plurality of regions is input (S440-Y), the controller 180 adjusts the display magnification by a unit magnification corresponding to the selected region (S450). The command for selecting the specific area may be a command for touching and dragging a specific area. A method of selecting a specific area will be described in more detail in Fig.

Then, the control unit 180 enlarges or reduces the image according to the adjusted zoom magnification and displays it on the display unit 151 (S460).

If the zoom magnification is adjusted by using a plurality of regions in which the increase / decrease ratio of the zoom magnification is set differently, the zoom magnification can be controlled more carefully.

5 is a flowchart illustrating a method of selecting a specific region according to an exemplary embodiment of the present invention and adjusting a zoom ratio according to the selected region.

As shown in FIG. 5, the controller 180 detects an input of touching a specific area among a plurality of areas (S510). A user can touch a specific area among a plurality of areas using a touch pointer such as a finger. Then, the touch point is formed in one area of the specific area, and the controller 180 determines that the touch is input.

When a touch is input to a specific area, the controller 180 determines the increase / decrease ratio set in the specific area as a unit magnification for adjusting the zoom magnification (S520). For example, when the increase / decrease ratio set in the specific region is 1, the control unit 180 determines the unit magnification for adjusting the zoom magnification to be 1.

In addition, the controller 180 determines whether a drag is inputted in the first direction (S530). The user can move the touch pointer in the first direction while touching one area within the specific area. Then, the touch point formed on the display unit 151 continuously moves in the first direction, and the controller 180 determines that the drag is inputted in the first direction. Here, the first direction is preferably any one of the directions along the specific region.

The control unit 180 determines the amount of adjustment of the zoom ratio in proportion to the increase / decrease ratio and the dragged distance in step S540, and adjusts the zoom magnification by increasing the zoom magnification by the adjustment amount in step S550. Here, the adjustment amount is determined by adding the increase / decrease ratio determined by the unit magnification every time the dragged distance exceeds the predetermined unit distance. For example, if the unit distance is set to 0.5 mm and the dragged distance is 2.2 mm, the control unit 180 can determine the adjustment amount of the zoom magnification to 4. [ Then, the zoom magnification is adjusted by adding 4 to the predetermined zoom magnification.

On the other hand, if it is determined that the drag is inputted in the second direction (S560-Y), the control unit 180 determines the amount of adjustment of the zoom magnification proportional to the increase / decrease ratio and the dragged distance (S570) Thereby adjusting the zoom magnification (S580). Wherein the second direction is preferably the opposite direction of the first direction.

On the other hand, if the touch is input but the drag is not inputted, the control unit 180 does not adjust the zoom magnification.

In this embodiment, the control unit 180 determines the adjustment amount of the zoom magnification only when the direction of dragging is the direction along the region. However, it is not limited thereto. The amount of adjustment of the zoom magnification can be determined even when there is an input to drag in a direction including a direction along the region. For example, when a plurality of areas are sequentially arranged from the upper end to the lower end of the display unit 151, the direction along the area is the left-right direction. When the right direction is the first direction and the left direction is the second direction, not only the input to drag in the right direction, but also the drag input in the upper right direction and the lower right direction can be included in the drag input to increase the zoom magnification.

On the other hand, if the touch is inputted but the drag is not inputted or the drag is inputted in the direction perpendicular to the first direction and the second direction, the control unit 180 does not adjust the zoom magnification.

 Since the zoom magnification control command by the drag after touch operation adjusts the zoom magnification in proportion to the increase / decrease rate of the touched area and the distance to be dragged, when the user predicts the adjustment amount of the zoom magnification inputted by the user, .

It is needless to say that not only the amount of adjustment of the zoom magnification can be input by dragging but also the amount of adjustment of the zoom magnification can be input by the touch time or the proximity distance of the proximity touch.

Also, the zoom magnification may be adjusted by selecting any one of the plurality of regions, but it is also possible to adjust the zoom magnification by selecting at least two regions sequentially or simultaneously.

FIG. 6 is a flowchart illustrating a method of adjusting a zoom magnification by selecting a plurality of regions according to an embodiment of the present invention. For convenience of explanation, it is assumed that a plurality of areas includes a first area set to a rate of change of 1 and a second area set to a rate of change of 0.1. It is assumed that the predetermined display magnification is 5.

When the first area is selected (S610), the controller 180 adjusts the zoom magnification in proportion to the distance at which the increase / decrease ratio corresponding to the first area is dragged at the unit magnification (S620). Then, when the second area is selected (S630), the controller 180 additionally adjusts the zoom ratio adjusted by the unit magnification to the increase / decrease ratio corresponding to the second area (S640).

The zoom magnification can be adjusted more precisely by using a plurality of regions set differently in the rate of change. The plurality of areas are not limited to adjusting the zoom magnification. The present invention can be applied to various functions of a portable terminal requiring precise control. For example, by using a plurality of regions in which the increase / decrease rate is set differently from the operation speed such as the image reproduction speed, the reverse reproduction speed, and the photographing speed, the operation speed can be more precisely controlled. Since the zoom magnification is about the display magnification of the image in terms of space and the operation speed is about the display magnification of the image in terms of time, the zoom magnification and the operation speed are collectively referred to as the display magnification. When the display magnification changing mode is set, the control unit 180 divides the display area of the display unit 151 into a plurality of areas, sets a different increase / decrease rate of the display magnification ratio of each of the plurality of areas, By marking it identifiably, it is possible for the user to precisely change the display magnification.

The display magnification control method will be described in more detail with reference to the drawings.

7 is a view for explaining a process of adjusting the zoom magnification among display magnifications according to the first embodiment of the present invention.

As shown in FIG. 7A, a preview image of the camera 121 is displayed on the display unit 151 in the photographing mode of the portable terminal. When the user selects the zoom key 710 to adjust the zoom magnification, as shown in FIG. 7 (b), a plurality of regions 720 having different increase / decrease rates for zoom magnification adjustment are displayed on the display unit 151 It is displayed identifiably. Information on the increase / decrease ratio 730 may be displayed in each area and may be displayed identifiably or may be displayed by displaying a square shape specifying a plurality of areas. The rectangular shape may be implemented to disappear after a predetermined time elapses. Information about the current zoom magnification 740 may be displayed at the lower end of the display unit 151 as a zoom bar 742 and a numeral 744. [ 7B, the rate of increase / decrease of the first area 722 is 1, the rate of increase / decrease of the second area 724 is 0.5, and the rate of increase / decrease of the third area 726 is 0.1. Then, it can be seen that the current zoom ratio is 2.

The user can input a command to adjust the zoom magnification by selecting at least one area of the plurality of areas by touch and dragging. For example, as shown in FIG. 7C, when the user touches the first area 722, the user drags 752 by a unit distance in the rightward direction and drags 754 upward by the unit distance, Region 724. Then, after touching the third area 726, dragging 756 twice the unit distance in the leftward direction, the touch can be terminated. Then, the control unit 180 increases the zoom magnification by one time according to the selection of the first area 722. [ However, since the drag direction is upward in the second area 724, the controller 180 determines that the second area 724 is not selected. Then, the zoom magnification is adjusted to 2.8 times that of the predetermined zoom magnification by increasing the zoom magnification by 0.2 times according to the selection of the third area 726. [ When the user selects the OK key 760, the display of the displayed plurality of areas disappears and the image enlarged according to the adjusted zoom magnification 2.8 is displayed on the display unit 151 as shown in FIG. 7 (d) .

In the present embodiment, the image is enlarged or reduced according to the adjusted zoom magnification after the adjustment of the zoom magnification is completed, but the present invention is not limited thereto. If the zoom magnification is adjusted before the adjustment of the zoom magnification is completed, the image can be displayed according to the zoom magnification adjusted in real time.

In FIG. 7, a method of adjusting a zoom magnification by selecting any one of a plurality of regions and selecting another region has been described. However, the present invention is not limited thereto. At least two regions out of the plurality of regions can be selected at the same time. In this case, it is possible to determine the amount of final adjustment by calculating the amount of adjustment by the unit magnification corresponding to each selected region, and adding up the amount.

In FIG. 7, the zoom magnification is adjusted by dragging after touching, but the present invention is not limited thereto. The zoom magnification may be adjusted according to the touch time.

FIG. 8 is a view illustrating a screen capable of adjusting the zoom magnification among the display magnifications according to the second embodiment of the present invention.

8, if the increase / decrease ratio is set differently, the display unit 151 may include not only a plurality of regions 810 that can receive a magnification adjustment command, but also an area 822 where a magnification increase command can be received, And an area 824 in which a magnification reduction command can be received can be separately displayed. When the unit time for adjusting the display magnification is 1 second, when the user touches the first area 812 and then touches the first area 812 for 4 seconds and ends the touch, the controller 180 displays the zoom factor Can be adjusted by 0.4 times.

In the present embodiment, the increase / decrease ratio corresponding to each of the plurality of areas is displayed to be identifiable, but not limited thereto. It is needless to say that a plurality of areas can be displayed in an identifiable manner using color, size, and the like.

FIG. 9 is a view for explaining a method of adjusting a zoom magnification and an operation speed in one screen according to an embodiment of the present invention. Referring to FIG.

When the mode of the portable terminal is the moving image shooting mode, as shown in FIG. 9, a plurality of areas 920 for receiving a command for zoom scale adjustment and an area 930 for receiving a command for shooting speed are displayed together can do. Thus, the user can adjust the shooting speed after adjusting the zoom magnification by touching and dragging. Since the user can input different kinds of user commands on the same screen by the same gesture, touch and drag, the operation of the portable terminal becomes much simpler.

Meanwhile, the present invention can be implemented as a processor-readable code on a processor-readable recording medium such as an MSM (Mobile Station Modem). The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored. Examples of the recording medium readable by the processor include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may be implemented in the form of a carrier wave such as transmission over the Internet. In addition, the processor-readable recording medium may be distributed over network-connected computer systems so that code readable by the processor in a distributed fashion can be stored and executed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

110: wireless communication unit 120: A / V input unit
130: user input unit 140: sensing unit
150: output unit 151: display unit
160: memory 170: interface section
180:

Claims (10)

Displaying on a display unit a preview image showing a preview of an image to be photographed through a camera;
Displaying, in a zoom magnification changing mode, a plurality of areas in which the increase / decrease ratio of the zoom magnification is set differently to overlap with the preview image;
Adjusting the zoom magnification by a unit magnification corresponding to the selected region when at least one region among the plurality of regions is selected; And
Enlarging or reducing the preview image according to the adjusted zoom magnification and displaying the enlarged or reduced preview image on the display unit. The method according to claim 1,
When the second region is selected after the first region is selected from among the plurality of regions, the zoom ratio corresponding to the first region is adjusted to a unit magnification, and then the rate of change corresponding to the second region is set to a unit magnification Wherein the zoom magnification is additionally adjusted. The method according to claim 1,
Wherein the selection of the region is selected as an input to be touched and dragged, and the amount of adjustment of the zoom magnification is proportional to the increase / decrease rate and the distance to be dragged. The method of claim 3,
When the dragging direction includes the first direction, the zoom magnification is increased,
Wherein the zoom magnification is reduced when the dragging direction includes a direction opposite to the first direction. The method according to claim 1,
And displaying the plurality of areas in a distinguishable manner by displaying a change rate corresponding to each of the plurality of areas in each of the plurality of areas. The method according to claim 1,
And displaying a zoom bar including the adjusted zoom factor on the display unit. The method according to claim 1,
Wherein the plurality of areas comprise:
And sequentially displayed on the display unit according to the increase / decrease rate. camera;
A touch screen for displaying a preview image for previewing a video image to be shot through the camera; And
A zoom ratio changing mode in which a plurality of regions in which the zoom ratio is set differently are superimposed on the preview image, and when at least one region among the plurality of regions is selected, a rate of increase / decrease corresponding to the selected region is multiplied by a unit magnification And a controller for adjusting the zoom magnification and enlarging or reducing the preview image according to the adjusted zoom magnification and displaying the magnified or reduced preview image on the touch screen. 9. The method of claim 8,
Wherein the selection of the region is selected as an input to be touched and dragged, and the amount of adjustment of the zoom magnification is proportional to the increase / decrease ratio and the distance to be dragged. 9. The method of claim 8,
Wherein,
When the second region is selected after the first region is selected from among the plurality of regions, the zoom ratio corresponding to the first region is adjusted to a unit magnification, and then the rate of change corresponding to the second region is set to a unit magnification Wherein the zoom magnification is additionally adjusted.

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