KR100663471B1 - System for including portable terminal having a camera and taking a photograph method using that - Google Patents

Abstract

Disclosed is a portable terminal equipped with a camera. The portable terminal has a jack interface connected to an external device that can select a command for controlling an operation set in the normal mode and the camera mode, and the operation mode may be set to one of the normal mode and the camera mode according to the input signal. When a command is input from the external device while the camera is set to a mode and is operated in a camera mode, the controller may capture an image captured by the camera, and a storage unit may store the captured image under control of the controller.

Handheld device, camera, shooting, shake, correction, image quality

Description

System including a portable terminal equipped with a camera and a shooting method using the same {SYSTEM FOR INCLUDING PORTABLE TERMINAL HAVING A CAMERA AND TAKING A PHOTOGRAPH METHOD USING THAT}

1 is a view showing an example of a clamshell terminal of a typical portable terminal,

Figure 2 is a block diagram showing a preferred embodiment of a portable terminal that can compensate for the shake of the camera when shooting the camera according to the invention,

FIG. 3 illustrates the key interface of FIG. 2 in detail;

4 is a diagram illustrating a first example of a portable terminal to which FIG. 2 is applied;

FIG. 5 is a diagram illustrating a second example of a portable terminal to which FIG. 2 is applied;

6 is a view showing a third example of a portable terminal to which FIG. 2 is applied;

7 is a view showing a fourth example of a portable terminal to which FIG. 2 is applied;

8 is a diagram illustrating a fifth example of a portable terminal to which FIG. 2 is applied; and

9 is a flowchart illustrating a preferred embodiment of a photographing method using a portable terminal according to the present invention.

Explanation of symbols on the main parts of the drawings

100: control unit 120: data processing unit

123: RF processing unit 125: audio processing unit

130: camera unit 133: image processing unit

135: LCD module 140: storage unit

200: user interface 220: key interface

240: jack interface 260: short-range wireless communication interface

280: connector interface 300: handset module

320: call key 324: shutter key

340: microphone 600: wireless remote control

620: wireless communication module 700: wired remote control

The present invention relates to a portable terminal equipped with a camera and a shooting method using the same, and more particularly, a portable terminal equipped with a camera having a mobile communication function and capable of capturing a captured image displayed on a screen, and photographing using the same. It is about a method.

In general, a portable terminal refers to a portable device capable of providing a wireless communication service to a user while performing wireless communication with a base station. These portable terminals are becoming commonplace in all ages, men and women around the world, and are becoming a necessity. The portable terminal essentially includes a handset, a data input / output unit, an antenna device, and the like, for transmitting and receiving a voice or video data signal with a counterpart.

1 is a diagram illustrating examples of a clamshell terminal among general portable terminals. In the illustrated folding terminal, two housings are rotatably connected by a hinge device. Here, the two housings will be referred to below as the main housing 10 and the folder 20. That is, the known clamshell terminal rotatably connects the main housing 10, the folder 20, and the main housing 10 and the folder 20 in a direction to move away from or close to each other. It is composed of a hinge device to provide.

 As shown in FIG. 1, a known clamshell terminal includes a hinge device for rotatably connecting the main housing 10, the folder 20, the main housing 10, and the folder 20, and the hinge device rotatably. It is composed of a lens housing 30 mounted.

The main housing 10 includes a keypad 42 formed of an arrangement of a plurality of keys on its upper surface 40 and a microphone device 14.

The folder 20 includes a display device such as a speaker device 21 and an LCD module 22. In addition, the lens housing 30 includes a camera lens 31, a known CD element and the like not shown therein. At this time, the lens housing 30 is disposed coaxially with the axis of the hinge connecting the main housing 10 and the folder 20 is rotatably coupled to have a structure that rotates about the axis of the hinge.

On the other hand, the upper surface 40 of the main housing 10 is provided with a camera key 44 which is a key for selecting a camera function through the lens housing 30 and for capturing an image captured by the camera lens 31. Accordingly, in order to use the camera function applied to the portable terminal, the user selects the camera key 44 and selects the camera key 44 in a situation in which a user wants to view and photograph a state of photographing a subject through the camera lens 31. do.

By the way, when the camera key 44 is selected in a situation where the user wants to view the image captured by the camera lens 31 as described above, the image captured by the camera lens 31 by the force of pressing the camera key 44 is selected. There is a problem that is shaken.

In addition, there is a problem in obtaining a captured image of clearer image quality. In addition, in addition to the camera key 44, a plurality of function keys and a plurality of numeric keys set for input of call keys, numbers, and letters are provided on the upper surface 40 of the main housing 10 of the portable terminal. do. Therefore, when the user selects the camera key 44 to capture an image captured by his or her finger (usually using a thumb), be careful not to select the peripheral key provided in the main housing 10 of the portable terminal. It costs. In addition, when continuously photographing the image to be photographed for a short time that can be taken, the shake of the camera lens 31 becomes more severe, it is more difficult to obtain a captured image having a clear image quality.

An object of the present invention for solving the above problems, when you want to shoot an image captured by using a portable terminal equipped with a camera, to compensate for the camera shake caused by selecting the camera key provided in the main body of the portable terminal It is to provide a portable terminal and a shooting method using the same.

Another object of the present invention is to compensate for the deterioration of the image quality due to the shaking of the photographed image appearing when taking a photographed image by selecting a camera key provided in the main body of the portable terminal using a portable terminal equipped with a camera It is to provide a portable terminal and a photographing method using the same.

According to the present invention, there is provided a portable terminal equipped with a camera, comprising: a jack interface connected to an external device capable of selecting commands for performing an operation being performed in a normal mode and a camera mode, respectively; A controller configured to set an operation mode to any one of a normal mode and the camera mode according to an input signal, and to capture an image captured by a camera when a command is input from the external device in a state of operating in a camera mode; And a storage unit for storing the captured image under the control of the controller.

Here, the camera mode is a mode for taking an image captured by the camera, and the normal mode is an operation standby mode except for the camera mode. In an embodiment of the invention the external device is an ear handset.

The ear handset includes: a handset module including a call key for selecting a call command in a normal mode and a shooting command in a camera mode, and a microphone for reading an external voice; And an ear speaker for outputting a voice signal output from the jack interface.

The ear handset differs from a call key for generating a signal having a predetermined level corresponding to a call command according to a signal input in the normal mode, and a call key selection signal corresponding to a shooting command according to a signal input in a camera mode. A handset module having a shutter key for generating a signal having a level and a microphone for reading an external voice; And an ear speaker for outputting a voice signal output from the jack interface. Accordingly, when the level signal corresponding to the selection of the call key is input, the controller performs dialing for the call, and when the level signal corresponding to the selection of the shutter key is input, the controller photographs an image captured by the camera.

The ear handset may further include a handset module including a call key for selecting a call command in a normal mode, a shutter key for selecting a shooting command in a camera mode, and a microphone for reading an external voice; And an ear speaker for outputting a voice signal output from the jack interface. In this case, a plurality of jack interfaces are provided for inputting selection signals of a call key and a shutter key, respectively. Accordingly, the controller performs dialing for a call when a call key selection signal is input to a jack interface for inputting a call signal selection signal among a plurality of jack interfaces, and a jack for inputting a shutter signal selection signal. When the input signal of the shutter key is input to the interface, the camera photographs the captured image.

In addition, the above object is, according to the present invention, a portable terminal equipped with a camera, a wireless communication interface for performing a communication operation with a wireless remote control that can select a shooting command in the camera mode; A controller configured to set an operation mode to one of a normal mode and a camera mode according to an input signal, and to photograph an image captured by a camera when a recording command is input from a wireless remote controller in a state of operating in a camera mode; And a storage unit for storing the captured image under the control of the controller.

The wireless remote controller, the wireless communication module for performing mutual communication with the wireless communication interface; And a button for selecting a shooting command.

According to the present invention, there is provided a portable terminal equipped with a camera, comprising: a connector interface configured to perform communication with a wired remote controller capable of selecting a shooting command in a camera mode; A controller configured to set an operation mode to one of a normal mode and a camera mode according to an input signal, and to capture an image captured by a camera when a shooting command is input from a wired remote controller in a state of operating in a camera mode; And a storage unit for storing the captured image under the control of the controller.

On the other hand, the object as described above, according to the present invention, in the photographing method using a portable terminal equipped with a camera, a) setting the operation mode to any one of the normal mode and the camera mode according to the input signal; b) when a call command is input from outside, determining a set operation mode; And c) if it is determined that the set mode is the camera mode, photographing an image captured by the camera in response to an input call command.

Preferably, the photographing method using the portable terminal of the present invention, if it is determined that the mode set in the step b) is the normal mode, further comprising the step of performing dialing for the call in response to the input call command.

According to the present invention, a subject photographed through a camera unit is provided outside of the portable terminal and receives a photographing command through an external device such as a handset module which is provided outside the portable terminal and communicates with the portable terminal. By doing so, it is possible to prevent shaking of the camera unit when photographing a photographed subject and obtain an image having a better quality image. In addition, by separately providing a call key and a camera key on the external HEY handset to output signals of different levels, the controller selectively performs the call mode and the camera mode according to the input signal level, thereby capturing in the camera mode. When shooting a video, you can take a picture that does not shake.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same elements in the figures are represented by the same numerals wherever possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

Figure 2 is a block diagram showing a preferred embodiment of a portable terminal that can compensate for the shake of the camera when shooting the camera according to the present invention.

The RF unit 123 performs a wireless communication function of the portable terminal. The RF unit 123 includes an RF transmitter for upconverting and amplifying a frequency of a transmitted signal, and an RF receiver for low noise amplifying and downconverting a received signal. The data processor 120 may include a modem for encoding and modulating a signal transmitted by the RF unit 123, and a codec for demodulating and decoding a signal received by the RF unit 123. . The codec includes a data codec for processing packet data and the like and an audio codec for processing audio signals such as voice. The audio processor 125 reproduces the received audio signal output from the audio codec of the data processor 120 or transmits the transmission audio signal generated from the microphone to the audio codec of the data processor 120.

The camera module 130 captures an image of a subject photographed through a lens. In this case, the camera unit 130 includes a camera sensor for converting the photographed optical signal into an electrical signal, and a signal processor for converting the analog image signal photographed from the camera sensor into digital data. Here, the camera sensor is assumed to be a Charge Coupled Device (CCD) sensor or a Complementary Metal-Oxide-Semiconductor (CMOS), and the signal processor may be implemented by a digital signal processor (DSP). In addition, the camera sensor and the signal processor may be integrally implemented or may be separately implemented.

The image processor 133 performs a function of generating display data for displaying an image signal output from the camera unit 130. The image processor 133 processes the image signal output from the camera unit 130 in units of frames, and adjusts and outputs the frame image data corresponding to characteristics and sizes such as displayable resolution of the LCD module 135. do. In addition, the image processor 133 includes an image codec and performs a function of compressing the frame image data displayed on the LCD module 135 in a set manner or restoring the compressed frame image data to the original frame image data. Here, the image codec may be a JPEG codec, an MPEG4 codec, a wavelet codec, or the like. The image processor 133 has an OSD function, and may output image data in combination with OSD data under the control of the controller 100.

The LCD module 135 displays the image data output from the image processor 133 on the LCD, and displays the user data output from the controller 100. Herein, the LCD module 135 may include an LCD controller, a memory capable of storing image data, and an LCD display device. In this case, when the LCD module 135 is implemented by using a touch screen method, the LCD module 135 may operate as an input unit.

The storage 140 stores a program 143 and photographing data 145. Here, the program 143 is a program for controlling the general operation of the portable terminal. In addition, the photographing data 145 is an image photographed under the control of the controller 100 among the images photographed by the camera unit 130.

The user interface 200 is an interface that allows a user to input a corresponding command and provide an operation corresponding to the input command. Examples of the illustrated user interface 200 include a key interface 220, a jack interface 240, a short range wireless communication interface 260, and a connector interface 280.

The key interface 220 refers to a plurality of keys provided on the upper surface 40 of the main housing 10 of the portable terminal of FIG. 1. The jack interface 240 is an interface for connecting a handset or the like to input a call and a call termination command of the portable terminal using the call key 320 provided in the handset. The short range wireless communication interface 260 supports short range wireless communication such as infrared communication and Bluetooth communication, and communicates with an external short range wireless communication terminal. The connector interface 280 may also be referred to as a universal asynchronous receiver / transmitter (UART), that is, a universal asynchronous transceiver. The connector interface 280 may be connected to an external device to transmit and receive data, and may receive power supplied from a charger provided with a power outlet. .

Each of the user interfaces 200 performs the above functions according to its function, and receives a shooting command for capturing an image captured by the camera unit 130 according to the present embodiment, and controls the received command. 100) can be provided. Accordingly, when the photographing command is received, the controller 100 detects an image signal captured by the camera unit 130 and received by the image processor 133 as photographing data at the time when the photographing command is received. The controller 100 displays the photographed image data on the LCD module 135 and displays information on the LCD module 135 asking whether to store the captured image data. When a command for storing the displayed image data is input thereto, the controller 100 stores the displayed image data in the storage 140.

Meanwhile, according to FIG. 2, an ear handset is connected to the jack interface 240. The handset is composed of a handset module 300 connected to the jack interface 240 to transmit and receive data, and a speaker connected to the handset module 300 to output a voice signal transmitted from the jack interface 240. Handset module 300 has call key 320 and microphone 340. The call key 320 is a key provided for a call while the call and the wireless communication are not being performed, and the microphone 340 reads an external voice while the call is being performed.

In the present embodiment, when the camera key (absence number 44 in FIG. 1) provided in the key interface 220 is selected and the operation mode of the portable terminal is a camera mode capable of capturing an image captured by the camera unit 130, the controller When the selection signal of the call key 320 provided in the handset module 300 is input through the jack interface 240, the image signal input to the image processor 133 is detected as photographing data. The controller 100 stores the detected photographing data in the storage 140 according to a selection of a key provided in the key interface 220.

Accordingly, a photographing command is inputted through an external device such as a handset module 300 that is provided outside the portable terminal and communicates with the portable terminal with respect to a subject photographed by the camera unit 130, and photographs according to the input photographing command. By photographing the photographed subject, it is possible to prevent shaking of the camera unit 130 when photographing the photographed subject and to obtain an image having a better quality image.

3 is a detailed view of the key interface 220 of FIG. 2. The key interface 220 has a function key unit 222 and a call key unit 224. The function key unit 222 is a menu key 222a which provides an initial screen for selecting a menu of a function set in a portable terminal, a communication key 222b for wireless communication, and selection and modification of a function displayed on the LCD module 135. A confirmation key 222c for storing the function and a message management key 222d for sending and managing text and voice messages. In addition, the function key unit 222 further has a telephone number key 222e, a camera key 222f, and a shutter key 222g. The phone number key 222e is a key for managing a phone number, the camera key 222f is a key for entering a camera mode for photographing a subject photographed through the camera unit 130, and a shutter key 222g. ) Is a key for photographing a subject photographed through the camera unit 130. At this time, the camera key 222f and the shutter key 222g may be configured as one key. That is, when the camera key 222f and the shutter key 222g are configured as the camera key 222f, the control unit 100 enters the camera mode when the camera key 222f is selected in the normal mode and the camera again in the camera mode. When the key 222f is selected, the photographed subject is photographed by the camera unit 130.

On the other hand, the call key unit 224 has a call key 224a, a cancel key 224b, an end key 224c, and a digit / character key 224d. The call key 224a is a key for the call to the number displayed on the LCD module 135, and the cancel key 224b is a key for canceling the operation. In addition, the end key 224c is a key for ending the operation being performed, and the digit / character key 224d is a plurality of keys provided for input of numbers and input of characters.

4 is a diagram illustrating a first example of a portable terminal to which FIG. 2 is applied. The jack interface 240 of the illustrated portable terminal has a structure in which an ear hand having a handset module 300 having a call key 320 can be connected thereto. When the selection signal of the call key 320 is input, the controller 100 of the portable terminal of the figure determines the current operation mode and performs an operation corresponding to the selection signal of the call key 320 according to the result. Accordingly, when the current operation state is the normal mode, the control unit 100 performs a call using the number displayed on the screen 137 of the LCD module 135. In addition, when the current operation state is the camera mode, the controller 100 detects an image input to the image processor 133 through the camera lens 520 of the lens housing 500 via the camera unit 130 as photographing data. do. In this case, the controller 100 controls the LCD module 135 to display the photographing data on the screen 137.

FIG. 5 is a diagram illustrating a second example of a portable terminal to which FIG. 2 is applied. As shown, the handset module 300 of the handset is provided with a call key 320 and a shutter key 324 which performs the same function as the camera key 420 provided in the main body of the portable terminal. At this time, the signal generated as the call key 320 and the shutter key 324 are selected are signals having different level values. Accordingly, the controller 100 sets each level range to determine which of the call key 320 and the shutter key 324 is selected. Therefore, when the signal in which the call key 320 is selected in the normal mode is input, the controller 100 performs dialing for the call according to the signal level corresponding to the selection of the call key 320. In addition, when a signal in which the camera key 324 is selected in the normal mode is input, the controller 100 changes the operation mode of the portable terminal to the camera mode. Accordingly, the image input to the image processor 133 through the camera unit 130 through the camera lens 520 is displayed on the screen 137 by the LCD module 135. In this case, when the signal in which the camera key 324 is selected again is input, the controller 100 detects an image displayed on the screen 137 as photographing data according to the input signal.

Accordingly, the caller 320 and the camera key 324 are separately provided on the external HEY handset to output signals of different levels, respectively, so that the controller 100 sets the call mode and the camera mode according to the level of the input signal. By selectively performing, it is possible to capture an image which is not shaken when capturing the image captured in the camera mode.

FIG. 6 is a diagram illustrating a third example of a portable terminal to which FIG. 2 is applied. The illustrated portable terminal has two jack interfaces 242 and 244. In addition, the handset module 300 has a call key 320 and a camera key 324 separately. Accordingly, the first jack interface 242 of the two jack interface 242, 244 transmits and receives data with the call key 320, the second jack interface 244 of the jack interface 242, 244 is the camera key 324 sends and receives data. Therefore, when a signal is input from the first jack interface 242, the controller 100 changes the operation mode to the call mode and performs dialing. In addition, when a signal is input from the second jack interface 244, the controller 100 changes the operation mode to the camera mode. When the camera key 324 is selected and the signal is input again from the second jack interface 244 during operation in the camera mode, the captured image is captured and detected as photographing data.

Accordingly, the operation mode of the portable terminal is controlled through the call key 320 and the camera key 324 provided in the external ear handset, the camera key 324 is selected, and the camera key 324 is selected during operation in the camera mode. When a signal is input to the two-jack interface 244, by detecting the photographed subject as the photographing data, it is possible to prevent shaking when photographing the subject and obtain an image having a clearer image quality.

FIG. 7 is a diagram illustrating a fourth example of a portable terminal to which FIG. 2 is applied. As illustrated, the portable terminal is provided with a short range wireless communication interface 260 that can wirelessly communicate with a device located at a short distance. Also, the wireless remote controller 600 for selecting a command for capturing a captured image when the portable terminal is in camera mode by performing mutual communication with the short range wireless communication interface 260 is illustrated. The wireless remote controller 600 is provided with a wireless communication module 620 for communicating with the short range wireless communication interface 260 and a button 640 for selecting a command for capturing a captured image.

When the camera terminal 420 is selected, when the portable terminal receives a recording command from the wireless remote controller 600 while the portable terminal is operating in the camera mode, the controller 100 responds to the screen (when the shooting command is received from the image being captured). An image displayed at 137 is detected as photographing data. When a storage command for the detected photographing data is received, the controller 100 stores the photographing data in the storage 140.

8 is a diagram illustrating a fifth example of a portable terminal to which FIG. 2 is applied. As illustrated, the portable terminal is provided with a connector interface 280 that is wired to an external device and receives data from each other and receives power from an external device. According to the drawing, the portable terminal has a wired remote control 700 connected to the connector interface 280 for controlling the shooting of the image captured in the camera mode. The wired remote control 700 has a button 720 for selecting a shooting command for transmitting to the portable terminal through the connector interface 280.

Accordingly, when the camera key 420 is selected and the portable terminal operates in the camera mode, when the button 720 of the wired remote control 700 is selected and a shooting command is received through the connector interface 280, the controller 100 ) Detects the image displayed on the screen 137 at the time when the photographing command is received as the photographing data. In this case, when a storage command for photographing data is input, the controller 100 stores the photographing data in the storage 140.

Therefore, by providing a recording command for an image captured by the camera unit 134 to the outside of the portable terminal and inputting it by wire or wirelessly, when the recording command is input, the shaking of the portable terminal can be eliminated, and accordingly, You can get a video.

 9 is a flowchart illustrating a preferred embodiment of a photographing method using a portable terminal according to the present invention. First, the control unit 100 sets to one of the normal mode and the camera mode according to the input signal (S100). Here, the camera mode is a mode for acquiring photographed data by photographing a subject through the camera unit 130, and the general mode is an operation standby mode except for the camera mode. Accordingly, the controller 100 performs the corresponding operation in the set mode.

While operating in the set mode, the controller 100 determines whether the selection signal of the external call key 320 is input (S120). At this time, if it is determined that the selection signal of the external call key 320 is not input, the control unit 100 continues the current operation (S130). If it is determined that the selection signal of the external call key 320 is input, the controller 100 determines which mode is the currently set mode (S140).

According to the determination result of the set mode, it is determined whether the currently set mode is the camera mode (S160), and if it is determined that the set mode is the camera mode, the controller 100 responds to the selection signal of the input external call key 320. An image captured by the unit 130 is photographed (S180). The control unit 100 stores the captured image data in the storage unit 140 according to the input command (S200).

On the other hand, if it is determined in step S160 that the currently set mode is not the camera mode, the control unit 100 performs a dialing for a call according to the selection signal of the external call key 320 (S220). Accordingly, the control unit 100 performs a call operation (S240). During the call operation, the controller 100 determines whether an input signal of the external call key 320 is input (S260). If it is determined that the selection signal of the external call key 320 is not input, the controller 100 continues the operation of step S240. If it is determined that the selection signal of the external call key 320 is input, the controller 100 ends the call operation being performed (S280).

In the present embodiment, the application of the present embodiment has been described in the state in which the handset is connected to the jack interface 240 of the portable terminal in FIG. 2, but the portable terminal via the other short-range wireless communication interface 260 and the connector interface 280 is described. The present embodiment can also be applied to controlling the shooting operation.

According to the present invention, a subject photographed through a camera unit is provided outside of the portable terminal and receives a photographing command through an external device such as a handset module which is provided outside the portable terminal and communicates with the portable terminal. By doing so, it is possible to prevent shaking of the camera unit when photographing a photographed subject and obtain an image having a better quality image.

In addition, by separately providing a call key and a camera key on the external HEY handset to output signals of different levels, the controller selectively performs the call mode and the camera mode according to the input signal level, thereby capturing in the camera mode. When shooting a video, you can take a picture that does not shake.

And, the operation mode of the portable terminal is controlled through the call key and the camera key provided in the external ear handset, and the camera key is selected and the camera key is selected during operation in the camera mode. By detecting with, it is possible to prevent shaking when photographing a subject and to obtain an image having clearer image quality.

In the above, specific preferred embodiments of the present invention have been illustrated and described. However, the present invention is not limited to the above-described embodiment, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention attached to the claims. will be.

Claims (16)

In a system comprising a portable terminal equipped with a camera, An external device having a command key for generating a selection signal for executing a predetermined operation according to each mode in the normal mode and the camera mode, and an interface unit for transmitting the selection signal; An external device interface unit for receiving the selection signal from the external device, and when the selection signal of the call key is received, grasp the currently set operation mode; And a portable terminal including a control unit for capturing an image captured by the camera when the mode is a camera mode. The system of claim 1, wherein the camera mode is a mode for capturing an image captured by the camera, and the general mode is a mode other than the camera mode. delete delete The system of claim 1, wherein the external device is one of an ear handset or a wireless remote controller. The method of claim 5, The ear handset, A handset module having a command key for generating a selection signal transmitted to the interface unit and a microphone for reading an external voice; And an ear speaker for outputting a voice signal received from the interface unit. The method of claim 5, The ear handset, A call key for generating a selection signal having a predetermined level corresponding to a call command, a shutter key for generating a selection signal having a level different from the selection signal of the call key in response to a shooting command, and a microphone for reading an external voice Handset module having a; And And an ear speaker for outputting a voice signal received from the interface unit. The method of claim 5, The ear handset, A handset module having a call key for selecting a call command in the normal mode, a shutter key for selecting a shooting command in the camera mode, and a microphone for reading an external voice; Ear speaker for outputting a voice signal received from the interface unit, The interface unit is a plurality of for inputting the selection signal from the call key and the shutter key, respectively, The external interface of the portable terminal is configured to correspond to the plurality of interface unit. The method of claim 8, The control unit performs an operation for a call when the call signal selection signal is input through an interface through which the call signal selection signal is input, and selects an interface through which the shutter signal selection signal is input. When the selection signal of the shutter key is input through the current operation mode is checked, and if the current operation mode is the camera mode, the image taken by the camera is photographed, if the normal mode, characterized in that to switch to the camera mode. The method according to any one of claims 5 to 8, The wireless remote control, And a wireless communication module for communicating with the portable terminal. In the photographing method of a portable terminal equipped with a camera, the portable terminal, Setting an operation mode to any one of a normal mode and a camera mode according to an input signal; If a selection signal is received from an external device, determining an operation mode currently being performed; If it is determined that the mode currently being executed is the camera mode, photographing an image captured by the camera in response to the input selection signal; and setting the camera mode if the currently executing mode is the normal mode; And photographing an image captured by the camera in response to the input selection signal when the selection signal is input again. delete The method of claim 11, The camera mode is a mode for capturing an image captured by the camera, and the normal mode is a mode except for the camera mode. 15. The method of claim 13, further comprising: performing a call connection operation when a selection signal for requesting to perform a call connection operation is received from the external device and the current operation mode is a normal mode. Way. The method of claim 14, wherein the selection signal received from the external device is wirelessly received. In a system comprising a portable terminal equipped with a camera, An external device having a command key for generating a selection signal for executing a predetermined operation according to each mode in the normal mode and the camera mode, and an interface unit for transmitting the selection signal; An external device interface unit for receiving the selection signal from the external device, and when a selection signal of the call key is received, grasp a currently set operation mode; And a portable terminal including a controller configured to set a camera mode if the currently set operation mode is a normal mode, and then photograph the image captured by the camera when the selection signal is received again.

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