KR100605950B1 - Method and device for converting camera mode in wireless terminal - Google Patents

Abstract

The present invention provides a method of switching from the mobile terminal to the camera mode, the process of switching to the camera mode when the camera unit of the mobile terminal is pulled out, determining the folder state of the mobile terminal, and opening the folder of the mobile terminal. In a state of switching to a first review mode for displaying image data through the first display unit; and switching to a second review mode for displaying image data through the second display unit when the folder of the portable terminal is closed. And a process of performing a shooting function when the shooting key is input.

Camera unit, hinge unit, first display unit, second display unit, camera detection unit, direction detection unit

Description

Camera mode switching device and method of mobile terminal {METHOD AND DEVICE FOR CONVERTING CAMERA MODE IN WIRELESS TERMINAL}             

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

2A and 2B are diagrams illustrating a state in which the camera unit is pulled out and drawn in the portable terminal according to the first embodiment of the present invention.

3A and 3B illustrate a process of switching to a camera mode in a mobile terminal according to a first embodiment of the present invention.

4 is a block diagram of a portable terminal according to a second embodiment of the present invention.

5A and 5E are views illustrating a state in which the mobile terminal switches to the camera mode according to the second embodiment of the present invention.

6 is a diagram illustrating a process of switching to a camera mode in a mobile terminal according to a second embodiment of the present invention.

The present invention relates to a camera mode of a mobile terminal, and more particularly, to an apparatus and method for automatically switching to a camera mode in a mobile terminal.

Currently, portable mobile communication terminals are converting to a structure capable of transmitting high speed data in addition to voice communication functions. That is, by implementing a mobile communication network of the IMT 2000 standard, it is possible to implement high-speed data communication in addition to voice communication using the portable terminal. Data that can be processed by the mobile terminal performing the data communication may be packet data and image data. In addition, a function of displaying a video signal by adding a camera or a TV receiver to the portable terminal is implemented. Therefore, the mobile terminal having a camera as described above can take a video screen and display it as a moving picture and a still picture, and can also transmit the captured video screen. In order to capture an image in a mobile terminal equipped with a camera as described above, it is necessary to switch to the camera mode through menu selection or input of a separately provided camera mode switching hot key. However, since the menu selection process as described above, the shortcut key can be switched to the camera mode only after at least two selection processes.

Accordingly, an object of the present invention is to provide an apparatus and a method for automatically switching and terminating a camera mode through drawing out and drawing out of a camera unit in a portable terminal.

Another object of the present invention is to provide an apparatus and method for automatically switching to and exiting a camera mode according to a folder rotation direction of a portable terminal.                         

In order to achieve the above object, a device for switching from a portable terminal to a camera mode includes a camera unit for capturing image data while being pulled into and out of a hinge portion connecting a main body housing and a folder housing of the portable terminal, withdrawal and A camera detection unit which detects an incoming signal and generates a signal, a control unit which switches to a camera mode when an outgoing detection signal is generated in the camera detection unit, and ends the camera mode when the incoming detection signal is generated; And a display unit for displaying image data.

In addition, the method for switching from the portable terminal to the camera mode to achieve the above object, the process of switching to the camera mode, the process of determining the folder state of the portable terminal when the camera unit of the mobile terminal is withdrawn, and the portable terminal Switching to a first review mode in which the image data is displayed through the first display unit when the folder is opened, and displaying the image data through the second display unit when the folder of the portable terminal is closed. Switching to the preview mode, and when the shooting key is input, characterized in that consisting of the process of performing the shooting function.

In addition, the apparatus for switching to the camera mode in the portable terminal to achieve the above object, the direction detecting unit for generating a first-fourth direction detection signal by detecting the direction according to the position of the folder of the portable terminal, and the first When the two-way detection signal is generated, the image data rotated by 90 degrees is output by switching to the camera mode, when the third direction detection signal is generated, the image data rotated by 180 degrees is outputted by the fourth direction detection signal. And a control unit for outputting image data rotated by 270 degrees and a display unit for displaying the image data.

In addition, the method for switching from the portable terminal to the camera mode to achieve the above object, the process of detecting the direction signal according to the position of the folder of the portable terminal, and if the detected signal is the second direction signal, the camera mode Converting the received image data by 90 degrees after switching to the output signal; and if the detected signal is a third direction signal, rotating the output image data by 180 degrees after switching to the camera mode, and detecting the detected image data. If the signal is a fourth direction signal, the image data received after switching to the camera mode is rotated 270 degrees, characterized in that the process of outputting.

DETAILED DESCRIPTION Hereinafter, detailed descriptions of preferred embodiments of the present invention will be described with reference to the accompanying drawings. It should be noted that the same components in the figures represent the same numerals wherever possible.

1 is a diagram illustrating a configuration of a portable terminal according to an embodiment of the present invention, which illustrates a configuration of a portable terminal including a camera.

1 and 2, 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 includes a transmitter for encoding and modulating the transmitted signal and a receiver for demodulating and decoding the received signal. That is, the data processor 123 may be configured of a modem and a codec CODDEC. The codec includes a data codec for processing packet data and an audio codec for processing an audio signal such as voice. The audio processor 125 reproduces the received audio signal output from the audio codec of the data processor 120 or transmits a transmission audio signal generated from the microphone to the audio codec of the data processor 120.

The memory 130 may include program memory and data memories. The program memory controls programs for controlling the general operation of the portable terminal and the mobile terminal automatically switches to and exits the camera mode when the camera unit is withdrawn from the hinge unit 200 according to the first embodiment of the present invention. You can save the programs. The data memory also temporarily stores data generated during the execution of the programs.

The controller 110 controls the overall operation of the mobile terminal. In addition, the controller 10 may include the data processor 120. In addition, the controller 110 controls the mobile terminal to switch to the camera mode when the camera unit draw detection signal is generated by the camera detector 180 according to the first embodiment of the present invention. In addition, the control unit 110 controls to terminate the camera mode of the portable terminal when the camera detection unit detection signal is generated in the camera detection unit 180 according to the first embodiment of the present invention. In addition, the control unit 110 in the first review mode to display the image data received from the camera unit 140 on the first display unit 161 when the folder of the portable terminal is open when switching to the camera mode according to the first embodiment of the present invention Switch. In addition, when the folder of the mobile terminal is closed when the camera 110 is switched to the camera mode according to the first embodiment of the present invention, the controller 110 enters the second preview mode to display the image data received from the camera unit 140 on the second display unit 162. Switch.

The camera module 140 includes a camera sensor for capturing image data, 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. Herein, it is assumed that the camera sensor is a CCD sensor, 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. In addition, the camera unit 140 has a structure that is drawn out and drawn in the hinge portion 200 of the portable terminal. FIG. 2A illustrates the camera unit 140 inserted into the hinge unit 200 of the portable terminal, and FIG. 2B illustrates the camera unit 140 extracted from the hinge unit 200 of the portable terminal.

The camera detector 180 detects the draw and draw of the camera 140 and outputs a draw and draw detection signal to the controller 110. That is, the camera detector 180 detects a signal drawn out from the hinge unit 200 by the camera unit 140, and outputs the draw detection signal and the pull detection signal to the controller 110. The camera detector 180 may be implemented in various forms. In the first embodiment of the present invention, the camera detection unit 180 includes a magnet 181 and a sensor 182.

Looking at the configuration and operation of the camera detector 180 according to the first embodiment of the present invention with reference to FIG. 2, the camera detector 180 is composed of a magnet 181 and a sensor 182. The magnet 181 is mounted to the camera unit 140 and the sensor 182 is mounted to the main body housing of the portable terminal. In the first embodiment of the present invention, it is assumed that the sensor 180 is a Hall effect IC. Mounting positions or numbers of the sensors and magnets arbitrarily determined in the first embodiment of the present invention may vary depending on the portable terminal used. As shown in FIG. 2A, when the camera unit 140 is inserted into the hinge unit 200, when the sensor 182 detects the magnet 181 maintaining a constant interval, a camera unit insertion detection signal is generated. In this case, as shown in FIG. 2B, when the camera unit 140 is drawn out and the magnet 181 is out of a predetermined interval, the sensor 182 detects this and generates a camera unit extraction detection signal. In addition, the camera detector 170 may include a switching unit inside the camera unit 140 or the hinge unit 200. When the camera unit 140 is drawn in, a switching on signal, which is a draw detection signal, may be generated, and when the camera unit 140 is drawn out, a switching off signal, which is a draw detection signal, may be generated.

The image processor 150 performs a function of generating screen data for displaying an image signal output from the camera unit 140. The image processor 150 processes the image signal output from the camera unit 40 in units of frames, and outputs the frame image data according to the characteristics and size of the display unit 160. In addition, the image processor 50 includes an image codec and performs a function of compressing the frame image data displayed on the display unit 160 in a set manner or restoring the compressed frame image data to the original frame image data. The image codec may be a JPEG codec, an MPEG4 codec, a wavelet codec, or the like. It is assumed that the image processor 150 has an On Screen Display (OSD) function, and may output on-screen display data according to a screen size displayed by the control of the controller 110.

The display unit 160 displays the image signal output from the image processor 50 on the screen, and displays the user data output from the controller 110. The display unit 160 may use an LCD. In this case, the display unit 160 may include an LCD controller, a memory capable of storing image data, and an LCD display device. In this case, when the LCD is implemented using a touch screen method, the LCD may operate as an input unit. The display unit 160 includes a first display unit 161 and a second display unit 162. The first display unit 161 is mounted inside the folder of the mobile terminal, and the second display unit 162 is mounted outside the folder of the mobile terminal. The first display unit 161 displays the image data received through the camera unit 140 in the first preview mode according to an embodiment of the present invention. The second display unit 162 displays image data received through the camera unit 140 in a second preview mode according to an embodiment of the present invention.

The key input unit 127 includes keys for inputting numeric and character information and function keys for setting various functions. In addition, the key input unit 127 is provided with a function key set to perform the shooting according to an embodiment of the present invention. The key input unit 127 includes a function key for performing a photographing function in the second preview mode according to an embodiment of the present invention. In addition, the key input unit 127 is provided with a switching key for switching between the type of the currently set camera shooting mode (photo shooting mode, video recording mode, etc.) according to an embodiment of the present invention.

An operation of automatically switching to and exiting the camera mode in the portable terminal will be described in detail with reference to FIG. 3.

3A and 3B are views illustrating a process of switching to a camera mode in a mobile terminal according to a first embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2.

Referring to FIG. 3A, when the camera unit 140 is drawn out as shown in FIG. 2B while the camera unit 140 is inserted into the ninja unit 200 as shown in FIG. 2A, the controller 110 detects this in step 302 and the camera unit is in camera mode. Proceed to step 303 to switch to. When the camera mode is automatically switched, the controller 110 may display a notification sound and a message to be switched to the camera mode. In addition to automatically switching to the camera mode, the controller 110 determines the folder state of the portable terminal. If the folder of the portable terminal is open, the controller 110 detects it in step 304 and proceeds to step 305 to switch to the first preview mode. In the first review mode, the controller 110 controls the first display unit 161 to display image data input through the camera unit 140. When the user inputs a photographing key in the first review mode, the controller 110 detects it in step 306 and proceeds to step 307 to perform a photographing function. The photographing key is a confirmation key provided in the key input unit 127 or a specific key capable of performing the active key function in the camera mode. In the embodiment of the present invention, it is assumed to be a side key.

Alternatively, when the call is received in the first review mode, the controller 110 detects it in step 308 and stores the image data until the call is received and then holds the camera mode. After holding the camera mode, the controller 110 switches to the call mode and proceeds to step 309. When the call mode ends, the controller 110 switches back to the first review mode in step 305. Alternatively, when a call is received in the first review mode, the controller 110 detects this and stores the video data until the call is received and then switches to the call mode. When the call function is finished in the call mode, the controller 110 may switch the portable terminal to the standby mode.

Alternatively, when the camera unit 140 is inserted in the first preview mode, the controller 110 detects it in step 311 and proceeds to step 313 to end the camera mode. When the camera mode is automatically terminated, the controller 110 may generate a notification sound and a message indicating that the camera mode is terminated.

Alternatively, when the folder of the portable terminal is closed in the first review mode, the controller 110 detects it in step 312 and proceeds to step 313 to end the camera mode. When the camera mode is automatically terminated, the controller 110 may generate a notification sound and a message indicating that the camera mode is terminated. However, the camera mode may be maintained even if the folder of the portable terminal is closed in the first preview mode. When the folder of the portable terminal is closed, the controller 110 may detect this and display a message on the second display unit 162 that allows the user to select whether to continue the camera mode. When the user selects to maintain the camera mode, the controller 110 controls the second display unit 162 to switch to a second preview mode in which image data input through the camera unit 140 is displayed.

Alternatively, in the first review mode, the controller 110 determines whether image data is received through the camera unit 140. If the image data is not received, the controller 110 detects it in step 314 and determines whether a predetermined time has elapsed. If the image data is not received during the predetermined time, the controller 110 detects it in step 315 and proceeds to step 313 to end the camera mode. When the camera mode is automatically terminated, the controller 110 may generate a notification sound and a message indicating that the camera mode is terminated.

Alternatively, when the user inputs a switch key for switching the type of the camera mode in the first review mode, the controller 110 detects this and switches to the type of the camera mode every time the switch key is input. In the embodiment of the present invention, assuming that the type of the camera mode is a photo shooting mode and a video shooting mode, the camera switches to the photo shooting mode and the video shooting mode each time the switch key is input. In this case, the first display unit 161 may display the shooting type of the currently set camera mode.

Referring to FIG. 3B, when the folder of the portable terminal is closed, the controller 110 detects it in step 304 and proceeds to step 325 in which the mobile terminal switches to the second preview mode. In the second review mode, the controller 110 controls the second display unit 162 to display image data input through the camera unit 140. When the user inputs a photographing key in the second review mode, the controller 110 detects it in step 326 and proceeds to step 327 to perform a photographing function. The photographing key is a specific key capable of performing the photographing key function provided in the key input unit 127. In the embodiment of the present invention, the photographing key is assumed to be a side key.

Alternatively, when the call is received in the second review mode, the controller 110 detects it in step 328 and stores the image data until the call is received and then holds the camera mode. After holding the camera mode, the control unit 110 switches to the call mode and proceeds to step 329. When the call mode ends, the controller 110 switches back to the second review mode in step 325. Alternatively, when a call is received in the second review mode, the controller 110 detects this and stores the video data until the call is received and then switches to the call mode. When the call function is finished in the call mode, the controller 110 may switch the portable terminal to the standby mode.

Alternatively, when the camera unit 140 is inserted in the first preview mode, the controller 110 detects it in step 331 and proceeds to step 333 to end the camera mode. When the camera mode is automatically terminated, the controller 110 may generate a notification sound and a message indicating that the camera mode is terminated.

Alternatively, in the second review mode, the controller 110 determines whether image data is received through the camera unit 140. If the image data is not received, the controller 110 detects it in step 334 and determines whether a predetermined time has elapsed. If the image data is not received during the predetermined time, the controller 110 detects it in step 335 and proceeds to step 333 to end the camera mode. When the camera mode is automatically terminated, the controller 110 may generate a notification sound and a message indicating that the camera mode is terminated.

Alternatively, when the user inputs a switch key for switching the type of the camera mode in the second review mode, the control unit 110 detects this in step 336 and switches to the type of the camera mode every time the switch key is input. According to an embodiment of the present invention, if the type of the camera mode is a picture taking mode and a video taking mode, when the switch key is input, the controller 110 detects this in step 336 and determines the type of the currently set camera mode. The type of camera mode currently set is a picture taking mode, and the controller 110 detects it in step 337 and proceeds to step 338 to switch to the picture taking mode. In addition, the currently set camera mode is a video recording mode, and the controller 110 detects it in step 339 and proceeds to step 340 to switch to the video recording mode.

4 is a block diagram of a portable terminal according to a second embodiment of the present invention.

Referring to FIG. 4, the key input unit 127 includes keys for inputting numeric and character information and function keys for setting various functions. The key input unit 127 may include a function key for automatically switching to a camera mode according to the folder rotation direction of the portable terminal according to the second embodiment of the present invention. The memory 130 may include program memory and data memories. The program memory may store programs for controlling the general operation of the portable terminal and programs for automatically switching the camera mode according to the folder rotation direction of the portable terminal according to an embodiment of the present invention. In addition, the data memory temporarily stores data generated during the execution of the programs. The controller 110 controls the overall operation of the mobile terminal. In addition, the controller 10 may include the data processor 120. In addition, the control unit 110 switches the portable terminal to the camera mode according to the folder rotation direction signal of the portable terminal according to the second embodiment of the present invention, and the image data received through the camera unit 140 in the forward direction of the user. Control the display operation.

The camera module 140 includes a camera sensor for capturing image data, 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. Herein, it is assumed that the camera sensor is a CCD sensor, 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 display unit 160 displays the image signal output from the image processor 50 on the screen, and displays the user data output from the controller 110. The display unit 160 may use an LCD. In this case, the display unit 160 may include an LCD controller, a memory capable of storing image data, and an LCD display device. In this case, when the LCD is implemented using a touch screen method, the LCD may operate as an input unit. The display unit 160 outputs the image data received in the camera mode in the user's orientation according to the second embodiment of the present invention.

The direction detecting unit 170 detects the direction of the position where the folder of the portable terminal is placed and outputs a direction detecting signal to the control unit 110. That is, the direction detecting unit 170 detects a direction according to the position where the portable terminal is placed, and outputs the direction detecting signal to the controller 110. Here, the direction detecting unit 170 may be implemented in various forms.

5A to 5E are views illustrating the operation of the direction detecting unit 170 according to the second embodiment of the present invention. According to the second embodiment of the present invention, four sensors are provided in a main body housing of a portable terminal and one fixed magnet is mounted in a folder housing of the portable terminal, so that each of the sensors detects the poles (N poles). Or S pole) to sense the four-direction positions in which the display unit 160 of the portable terminal is placed. In the second embodiment of the present invention, it is assumed that the direction sensors are hall sensors. The mounting positions or the numbers of the sensors and the magnets arbitrarily determined in the second embodiment of the present invention may vary depending on the mobile terminal used.

5A to 5E, the direction detecting unit 170 is fixed to one magnet 550 mounted to a folder housing of the mobile terminal, and mounted on a main body housing of the mobile terminal to sense a polarity of the magnet 550. It consists of four Hall sensors 511-512 and 521-522 that generate a detection signal. In the second embodiment of the present invention according to FIG. 5, two Hall sensors 511-512 of the four Hall sensors detect the N pole of the magnet and are placed on the front surface of the PCB of the main body housing which contacts the folder housing of the mobile terminal. It is assumed that the remaining two Hall sensors 521-522 detect the S pole of the magnet and are mounted on the PCB rear side of the main body housing of the mobile terminal. In addition, two Hall sensors 511-512 of the four Hall sensors may be mounted on the front surface of the PCB of the main body housing which detects the S pole of the magnet and contacts the folder housing of the mobile terminal, and the other two Hall sensors 521- The 522 senses the north pole of the magnet and may be similarly applied even when mounted on the rear surface of the PCB of the main body housing of the portable terminal.

The magnet is not limited to the one mounted in the folder of the mobile terminal, but may be mounted in the main body housing. In addition, the sensors are not limited to those mounted in the main body housing of the portable terminal, and may be mounted in folders. For reference, FIG. 5B means a first direction rotated by 0 degrees, FIG. 5C means a fourth direction rotated by 270 degrees, FIG. 5D means a second direction rotated by 90 degrees, and FIG. 5E is 180 degrees. It refers to the rotated third direction.

As shown in FIG. 5A, when the folder of the portable terminal is closed, the first sensor 511 detects the N pole of the magnet 550. At this time, if the folder of the portable terminal is opened and the first-fourth hall sensors 511-512, 521-522 do not detect the polarity of the magnet 550, the first direction detection signal is generated. Alternatively, if the direction detection signal is not output from any hall sensors, the direction detection unit 170 generates the first direction detection signal. In addition, when the two-hole sensor 512 detects the N pole of the magnet 550 as shown in FIG. 5D, the direction detecting unit 170 generates a second direction detection signal, and as shown in FIG. 5C, the third sensor 521 is the S pole of the magnet 550. Detects a fourth direction detection signal. In addition, as shown in FIG. 5E, when the fourth hall sensor 522 detects the S pole of the magnet 555, the direction detecting unit 170 generates a third direction detecting signal. Components not described in FIG. 4 perform the same functions as those of FIG. 1.

An operation of automatically switching the camera mode in the above portable terminal will be described in detail with reference to FIG. 6.

6 is a diagram illustrating a process of switching to a camera mode in a mobile terminal according to a second embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 4 and 5.

Referring to FIG. 6, in step 601, which is a standby mode, the controller 110 determines whether a direction detection signal is output from the direction detecting unit 170. When the direction detecting signal is output from the direction detecting unit 170, the control unit 110 detects this in step 602 and reads the direction detecting signal output from the direction detecting unit 170.

In this case, if no signal is output from the hall sensors 511-512, 521-522, the direction detecting unit 170 detects this in step 602 and generates a first direction detecting signal. Alternatively, as shown in FIG. 5A, when the folder of the portable terminal is closed, the first hall sensor 511 detects the N pole of the magnet 550. At this time, if the folder of the portable terminal is opened and the first hall sensor 511 does not detect the N pole of the magnet 550, the direction detecting unit 170 generates a first direction detecting signal. The controller 110 reads the first direction detection signal from the direction detection unit 170. When the first direction detection signal is generated as described above, since the portable terminal is positioned in the forward direction, the displayed screen may be maintained in the forward direction. Therefore, the controller 110 controls the display unit 160 to display the screen in the forward direction. 5B illustrates a state in which the portable terminal is positioned in the forward direction.

However, when the second hall sensor 512 detects the N pole of the magnet 550, the direction detecting unit 170 detects this in step 603 and generates a second direction signal, and the control unit 110 receives the second direction detecting signal from the mall direction detecting unit 170. Leads. In operation 604, the controller 110, which reads the second direction signal, switches the portable terminal to the camera mode and displays the image data received through the camera unit 140 on the display unit 160. When the second direction detection signal is generated as described above, it means that the portable terminal is rotated 90 degrees in the forward direction. In this case, the screen displayed on the display unit 160 is also rotated 90 degrees in the forward direction. Therefore, in order to allow the user to see the screen in the forward direction, the screen being displayed must be rotated 90 degrees toward the forward side. The control unit 110 rotates the image data applied to the display unit 160 by 90 degrees in the forward direction in step 605, and displays the image data rotated by 90 degrees by controlling the display unit 160. Therefore, the user of the portable terminal can see the screen in the forward direction displayed on the display unit 160 even when the portable terminal is rotated 90 degrees. 5D illustrates that the portable terminal is rotated 90 degrees in the forward direction.

In addition, when the fourth hall sensor 522 detects the S pole of the magnet 550, the direction detecting unit 170 generates a third direction detecting signal in step 606, and the controller 110 reads the third direction detecting signal from the direction detecting unit 170. . In operation 607, the controller 110, which reads the third direction signal, switches the portable terminal to the camera mode and displays the image data received through the camera unit 140 on the display unit 160. When the third direction detection signal is generated as described above, it means that the portable terminal is rotated 180 degrees in the forward direction. In this case, the screen displayed on the display unit 160 is also rotated 180 degrees in the forward direction and displayed in reverse. Therefore, in order to allow the user to see the screen in the forward direction, the displayed screen should be rotated 180 degrees toward the forward side. Accordingly, the control unit 110 rotates the image data applied to the display unit 160 by 180 degrees in the forward direction in step 608, and displays the image data rotated by 180 degrees by controlling the display unit 160. Therefore, the user of the portable terminal can see the screen in the forward direction displayed on the display unit 160 even when the portable terminal is rotated 180 degrees. 5E illustrates that the portable terminal is rotated 180 degrees in the forward direction.

Finally, when the third hall sensor 521 detects the S pole of the magnet 550, the direction detecting unit 170 generates a fourth direction detecting signal in step 609, and the control unit 110 generates the fourth direction detecting signal from the direction detecting unit 170. Leads. In operation 610, the controller 110 that reads the fourth direction signal switches the portable terminal to a camera mode and displays the image data received through the camera unit 140 on the display unit 160. When the fourth direction detection signal is generated as described above, it means that the portable terminal is rotated 270 degrees in the forward direction. In this case, the screen displayed on the display unit 160 is also displayed to be rotated 270 degrees in the forward direction. Therefore, in order to allow the user to see the screen in the forward direction, the display screen should be rotated 270 degrees toward the forward direction. Accordingly, the control unit 110 rotates the image data applied to the display unit 160 by 270 degrees in the forward direction in step 611, and displays the display data rotated by 270 degrees by controlling the display unit 160. Accordingly, the user of the portable terminal can see the screen in the forward direction displayed on the display unit 160 even when the portable terminal is rotated 270 degrees. 5C illustrates a state in which the portable terminal is rotated 270 degrees in the forward direction.

If the user inputs a photographing key while the image data is displayed through the display unit 160 in the camera mode, the controller 110 detects it and proceeds to photographing in step 612.

In the above description of the present invention, a specific embodiment such as a mobile terminal has been described, but various modifications can be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be determined by the equivalent of claims and claims.

That is, as described above, the present invention has an effect of automatically switching to and exiting the camera mode by detecting the withdrawal and withdrawal of the camera unit in the portable terminal and sensing the folder rotation direction of the portable terminal.

Claims (13)

In the device for switching from the mobile terminal to the camera mode, A camera unit for capturing image data while being drawn out and drawn in a hinge portion connecting the main body housing and the folder housing of the portable terminal; A camera detection unit which detects the withdrawal and withdrawal of the camera unit and generates a signal; A control unit which switches to a camera mode when the draw detection signal is generated in the camera detection unit and terminates the camera mode when the draw detection signal is generated; And a display unit for displaying the image data received in the camera mode. The method of claim 1, wherein the camera detection unit, A magnet provided in the camera unit; Said sensor comprising a sensor for sensing said magnet. The method of claim 1, The camera detecting unit generates a signal through the switching unit provided in the camera unit. In the method of switching from the mobile terminal to the camera mode, When the camera unit of the mobile terminal is withdrawn, switching to the camera mode; Determining a folder state of the mobile terminal; Switching to a first preview mode for displaying image data through a first display unit when the folder of the portable terminal is opened; Switching to a second preview mode for displaying image data through a second display unit when the folder of the portable terminal is closed; The method as claimed in claim 1, wherein the photographing key comprises a process of performing a photographing function. The method of claim 4, wherein in the first preview mode and the second preview mode, And closing the camera mode when the camera unit is retracted. The method of claim 4, wherein in the first preview mode, And closing the camera mode when the folder of the portable terminal is closed. The method of claim 6, wherein the ending of the camera mode comprises: When the folder of the mobile terminal is closed, displaying a message for selecting to maintain the camera mode; Selecting to maintain the camera mode, switching to the second preview mode; If the camera mode is not selected, the method comprising the step of ending the camera mode. The method of claim 4, wherein in the first preview mode and the second preview mode, And if the image data is not received for a certain time, ending the camera mode. The method of claim 4, wherein in the first preview mode and the second preview mode, Storing video data when a call is received; Ending the camera mode after the image data is stored and switching to a call mode; And ending the call mode when the call mode ends. The method of claim 4, wherein in the first preview mode and the second preview mode, Storing video data when a call is received; Holding the camera mode and switching to a call mode after storing the image data; And switching to the camera mode when the call mode ends. The method of claim 4, wherein in the second preview mode, Judging the type of camera mode set when the switch key is input; When the type of the camera mode is set to the photo shooting mode, switching to the video recording mode; And when the type of the camera mode is set to a video recording mode, switching to a photo shooting mode. In the device for switching from the mobile terminal to the camera mode, A direction detecting unit configured to generate a first to fourth direction detection signals by detecting a direction according to a position where a folder of the portable terminal is placed; When the second direction detection signal is generated to switch to the camera mode to output the image data rotated 90 degrees, when the third direction detection signal is generated to switch to the camera mode to output the image data rotated by 180 degrees, the fourth direction Control unit for outputting the image data rotated 270 degrees by switching to the camera mode when the detection signal occurs, And a display unit for displaying the image data. In the method of switching from the mobile terminal to the camera mode, Detecting a direction signal according to a position of a folder of the portable terminal; If the detected signal is a second direction signal, converting the image data received after switching to the camera mode by 90 degrees, and outputting the result; If the detected signal is a third direction signal, rotating the image data received after switching to the camera mode by 180 degrees and outputting the result; And if the detected signal is a fourth direction signal, rotating the image data received after switching to the camera mode by 270 degrees.

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