KR101781038B1 - Mobile terminal and operation control method thereof - Google Patents

Abstract

The present invention relates to a portable terminal and a method for controlling the operation thereof. A method for controlling an operation of a portable terminal includes displaying an operation screen on a display unit and detecting a multi-touch input including a first finger contact and a second finger contact on an operation screen, And a vector corresponding to the second finger movement, and performs a predetermined control operation corresponding to the calculated angle. According to the present invention, various operations can be controlled in the mobile terminal by using an input that is moved by a multi-touch of the screen with a finger and by moving the interval of the touched finger.

Description

[0001] The present invention relates to a mobile terminal and an operation control method thereof,

The present invention relates to a mobile terminal capable of controlling various operations by using an input that moves while touching a screen with two fingers and then spreading a gap between the fingers.

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 the portable terminal have diversified, they have complicated functions such as photographing and photographing, playing music files and video files, receiving games, receiving broadcasts, and wireless internet, and have developed a comprehensive multimedia player, .

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.

However, since the portable terminal needs to consider mobility and portability, there is a restriction on the space allocation for a user interface such as a display or a keypad. Accordingly, in order to efficiently use various functions provided in the portable terminal, it is necessary to control the operation of the portable terminal through a new input method that is different from the generally used input method or menu structure.

Accordingly, it is an object of the present invention to provide a mobile terminal capable of controlling various operations by using multi-touching of a screen with two fingers and using an input moving at intervals of touched fingers, and an operation control method thereof have.

According to another aspect of the present invention, there is provided a method of controlling an operation of a portable terminal, the method including displaying an operation screen on a display unit, detecting a multi-touch input including a first finger contact and a second finger contact on the operation screen Calculating an angle between a vector corresponding to the movement of the first finger contact and a vector corresponding to the second finger movement, and performing a predetermined control operation corresponding to the angle.

According to another aspect of the present invention, there is provided a portable terminal including: a display unit displaying an operation screen; And an angle between a vector corresponding to the movement of the first finger contact and a vector corresponding to the second finger movement is detected when the multi-touch input including the first finger contact and the second finger contact is detected on the operation screen And performs a predetermined control operation corresponding to the angle.

According to the present invention, it is possible to enlarge a screen, scroll the screen, display other screens related to the current screen by using an input that moves while leaving a gap between the touched fingers after multi-touching the screen with two fingers And so on. By using such an input in combination with a general key input, a touch input, or the like, the convenience of operation of the portable terminal can be improved.

1 is a block diagram of a portable terminal according to an 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,
4A and 4B are flowcharts illustrating a method of controlling an operation of a portable terminal according to an exemplary embodiment of the present invention, and FIGS.
5 to 10 are views for explaining a method of controlling an operation of a portable terminal according to an embodiment of the present invention.

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

The portable terminal described in the present specification may be used in various applications such as a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), a camera, tablet computers, e-book terminals, and the like. 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 signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal. The broadcast-related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. 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 can receive a digital broadcast signal using a digital broadcast system. In addition, the broadcast receiving module 111 may be configured to be suitable for all broadcasting systems that provide broadcast signals as well as the digital broadcasting system. The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 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 Near Field Communication (NFC) may 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. Also, the user input unit 130 may be a jog wheel for rotating a 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 sensing sensor 141, a pressure sensor 143, a motion sensor 145, and the like. The detection sensor 141 detects the presence of an object approaching the portable terminal 100 or an object existing in the vicinity of the portable terminal 100 without mechanical contact. The detection 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 the capacitance. More than two detection sensors 141 may be provided 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 kinds. 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 the signal as the 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.

FIG. 2 is a perspective view of a portable terminal according to an embodiment of the present invention, and FIG. 3 is a rear perspective view of the portable terminal shown in FIG. Hereinafter, the portable terminal according to the present invention will be described with reference to FIGS. 2 and 3 in terms of components according to the external form. Hereinafter, for convenience of description, 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, etc. 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.

Referring to FIG. 2, the case constituting the outer appearance of the portable terminal 100 is formed by the front case 100-1 and the rear case 100-2. Various electronic components are incorporated in the space formed by the front case 100-1 and the rear case 100-2.

The display unit 151, the first sound output module 153a, the first camera 121a, and the first through third user input units 130a, 130b, and 130c are connected to the main body, specifically, the front case 100-1 . A fourth user input unit 130d, a fifth user input unit 130e, and a microphone 123 may be disposed on a side surface of the rear case 100-2.

The display unit 151 may be constructed such that the touch pad is overlapped with the layer structure so that the display unit 151 operates as a touch screen so that information can be input by a user's touch.

The first acoustic output module 153a may be implemented in the form of a receiver or a speaker. The first camera 121a may be implemented in a form suitable for capturing an image or a moving image of a user. The microphone 123 may be implemented in a form suitable for receiving a user's voice, other sounds, and the like.

The first to fifth user input units 130a, 130b, 130c, 130d and 130e and the sixth and seventh user input units 130f and 130g described below may be collectively referred to as a user input unit 130, Any manner can be employed in a tactile manner.

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 a functional aspect, the first to third user input units 130a, 130b and 130c are for inputting commands such as start, end, and scroll, and the fourth user input unit 130d is for inputting a selection of an operation mode, . In addition, the fifth user input unit 130e may operate as a hot-key for activating a special function in the portable terminal 100. [

3, a second camera 121b may be additionally mounted on a rear surface of the rear case 100-2. On the side surface of the rear case 100-2, a sixth and a seventh user input units 130f, 130g, and an interface unit 170 may be disposed.

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. A flash (not shown) and a mirror (not shown) may be additionally disposed adjacent to the second camera 121b. In addition, another camera may be installed adjacent to the second camera 121b to use it for shooting a three-dimensional stereoscopic image.

The flash illuminates the subject when the subject is photographed by the second camera 121b. The mirror enables the user to illuminate the user's own face or the like when the user intends to photograph (self-photograph) himself / herself using the second camera 121b.

A second sound output module (not shown) may be further disposed in the rear case 100-2. 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.

The interface unit 170 can be used as a path for exchanging data with an external device. In addition, antennas for receiving broadcasting signals (not shown) may be disposed in one area of the proton case 100-1 and the rear case 100-2, in addition to the antennas for communication and the like. The antenna may be installed to be capable of being drawn out from the rear case 100-2.

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

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

4A and 4B are flowcharts illustrating a method of operating a mobile terminal according to an exemplary embodiment of the present invention.

Referring to FIG. 4, the control unit 180 displays an operation screen corresponding to the selected menu or operation on the display unit 151 configured with a touch screen (S200). At this time, examples of the displayed operation screen include a map screen, a web page screen, an image screen, and the like.

If the first and second finger touch movements are detected (S205) after the multi-touch input including the first finger contact and the second finger contact is detected while the operation screen is displayed (S205) An angle between a vector corresponding to the movement of the finger contact and a vector corresponding to the movement of the second finger contact is calculated (S210). The vector corresponding to the movement of the first and second finger contacts can be calculated by connecting the point where the finger contact is detected after the first finger contact is detected and moved over a certain distance. When the vector corresponding to the movement of the finger contact is calculated, if the vector is extended to find the intersection, the angle between the vector and the vector can be calculated.

If the calculated angle is an acute angle smaller than 90 degrees (S215), the control unit 180 causes the first control operation related to the current operation screen to be performed (S220).

If the calculated angle is an obtuse angle greater than 90 degrees (S225), the controller 180 causes the second control operation related to the current operation screen to be performed (S230).

If the calculated angle is close to zero degree (S235), the controller 180 causes the third control operation related to the current operation screen to be performed (S240).

In this way, different control operations are performed according to the calculated angles. At this time, the control operation to be performed may vary depending on the type of operation screen. For example, when the operation screen is a map screen, when the angle is an acute angle input, the load view screen is displayed starting from the first contact point. When the input is an obtuse angle, general pintch out input and enlargement . Then, when an input whose angle is substantially close to 0 degrees, i.e., the finger contact moves in parallel, an operation of scrolling the map screen can be performed. .

The control operation to be performed according to the calculated angle may be set by the user, and a separate menu may be provided for this purpose.

Referring to FIG. 4B, if there is a user input such as a touch input or a key input (S230), the control unit 180 controls the operation corresponding to the user input to be performed (S235). Depending on the setting items, even when a communication event such as a call or message reception occurs, an operation corresponding to the occurrence of a communication event may be performed.

 If another menu is not selected, the process after step S205 is repeatedly performed (S260).

In this way, when there is an input that moves while spacing apart the touched finger after multi-touching with two fingers, different control operations can be performed according to the calculated angle.

5 to 10 are diagrams for explaining a method of controlling an operation of a portable terminal according to an embodiment of the present invention.

5A shows a case where there is a multi-touch input including a first finger contact 303 and a second finger contact 305 on the operation screen 300. FIG. 5 (b), when there is an input that moves while leaving a gap between the fingers, the angle? Is calculated from the intersection of the straight line extending the moving path . Different control operations can be performed according to the calculated angle [theta].

As shown in FIG. 6A, when there are motion paths 400 and 403 of the actual finger contact, a vector 410 corresponding to the movement of each finger contact is connected by connecting a starting point and a point after a certain distance , 413) can be calculated. When the vector is calculated, the vector can be extended to calculate the angle (? ₁ ) between the vectors.

Similarly, in the case of FIG. 6B, the vectors 430 and 433 and the angle? ₂ between the vectors can be calculated from the motion paths 420 and 423 of the actual finger contact.

6 (a) shows a case where the calculated angle? ₁ is an acute angle, and FIG. 6 (b) shows a case where the calculated angle? ₂ is an obtuse angle .

FIG. 7 shows a case where there is an input 505 corresponding to an acute angle with respect to the calculated angle? With multi-touching with two fingers on the map screen 500, will be.

If there is such an input 503, a road view screen 510 can be displayed for a position corresponding to the initial contact point 503, as shown in FIG. At this time, the road view screen 510 means a 360-degree panorama actual distance photograph service screen provided by photographing the actual distance screen with a camera.

If the calculated angle is an obtuse angle, the screen can be enlarged and displayed like a normal pintch out input, and the map screen can be scrolled when the calculated angle is close to zero.

9 is an input for moving the position of a specific camera by two-finger multi-touch in the CCTV control room screen 520 with the interval of the touched finger being widened, and inputting an input corresponding to an acute angle 525).

When such an input 525 exists, a screen 530 to be photographed through the camera corresponding to the initial contact point 523 can be displayed as shown in FIG. That is, the camera can be selected by one input operation, and the screen shot by the selected camera can be displayed.

In addition, a multi-touch of a web page screen, a navigation screen, a 3D object browsing, an image screen, or the like with two fingers can be utilized for controlling various operations by moving the touched finger apart.

Meanwhile, the present invention can be implemented as a processor-readable code in a processor-readable recording medium provided in a portable terminal. 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 also a carrier wave such as transmission over the Internet. In addition, the processor readable recording medium may be distributed over networked computer systems so that code readable by the processor in a distributed manner 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 (13)

delete delete delete delete delete delete delete delete delete delete delete delete A display unit for displaying an operation screen; And;
When the multi-touch input including the first finger contact and the second finger contact is sensed on the operation screen, an angle between a vector corresponding to the movement of the first finger contact and a vector corresponding to the second finger movement is calculated And a controller for performing a predetermined control operation corresponding to the angle,
The operation screen is a CCTV control room screen,
When the calculated angle of the specific camera is an acute angle when the multi-touch input is performed with the first finger contact and the second finger contact, the controller displays a screen for photographing through the camera corresponding to the first contact point Control,
Wherein the control unit provides a menu for setting a control operation corresponding to the angle.

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