KR20090076621A - Apparatus for processing digital image and method for controlling thereof - Google Patents

Abstract

An apparatus for processing a digital image and a control method thereof are provided to store a copy of an image file in an additional storage medium, thereby restoring a deleted image file even when the image file is deleted. A backup command is inputted(S310,S330). Stored information of the first storage medium is converted into backup information through the backup command and stored in the second storage medium. The stored information is converted into the backup information(S340). The backup information is stored in the second storage medium. It is determined whether capacity of the second storage medium is exceeded by storing the backup information(S350). The backup information is deleted from the second storage medium(S360).

Description

Apparatus for processing digital image and method for controlling Technical Field

The present invention relates to a digital image processing apparatus and a control method thereof, and more particularly, to a digital signal processor for processing an image received through an image pickup device and compressing the image to generate an image file, and to store the image file in a memory. The present invention relates to a digital image processing apparatus and a control method thereof.

Typically, the digital image processing apparatus includes all devices that process images such as a digital camera, a personal digital assistant (PDA), a phone camera, a PC camera, or use an image recognition sensor.

The digital image processing apparatus may image an image received through an image pickup device by a digital signal processor, compress the image, generate an image file, and store the image file in a memory.

In addition, the digital image processing apparatus may display and display an image of an image file received through an imaging device or stored in a storage medium on a display device such as a liquid crystal display (LCD).

In a conventional digital image processing apparatus, an image file may be damaged or an unwanted image file may be deleted, unlike a user's intention, due to a user's mistake or an error in a key operation when the image file is stored or deleted. In this case, the conventional digital image processing apparatus cannot recover the deleted image file.

The present invention provides a digital image processing apparatus capable of restoring a deleted image file even when the image file is deleted due to a user's mistake or an error in key manipulation by storing a copy of the image file in a separate storage medium and control thereof. It is an object to provide a method.

The present invention includes the steps of: receiving a backup command to convert the storage information of the first storage medium into backup information and to store in the second storage medium; Converting the stored information into the backup information; And storing the backup information in the second storage medium.

Determining that the capacity of the second storage medium is exceeded by storing the backup information; And

The method may further include deleting the backup information in the second storage medium in the order in which the backup information is first stored.

Receiving the power off signal when sensing the input of the power off signal and receiving the backup command; Receiving an instruction of whether to back up the stored information; And performing a power off operation when the storing of the backup information on the second storage medium is completed.

Determining whether a set time has elapsed after the sleep mode is activated in response to the elapse of a set time after the sleep mode is activated and receiving the backup command; And performing a sleep mode operation when the storing of the backup information on the second storage medium is completed.

Detecting a removal operation of the first storage medium when receiving a backup command by detecting a removal operation of the first storage medium; Locking the removal of the first storage medium when a removal operation of the first storage medium is detected; Receiving an instruction of whether to back up the stored information; And unlocking the first storage medium when the storing of the backup information on the second storage medium is completed.

Another aspect of the invention, the first storage unit for storing the stored information; A second storage unit for backing up the stored information; And a control unit configured to receive a backup command for storing the storage information from the first storage unit to the second storage unit, and to control the storage information to be backed up to the second storage unit.

According to the digital image processing apparatus and the control method thereof according to the present invention, even if an image file is deleted due to a user's mistake or an error in key manipulation, the deleted image file can be recovered.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a rear view of a digital camera 100, which is an embodiment of a control device of a digital image processing apparatus and a digital image processing apparatus to which the method is applied, according to the present invention.

Referring to the drawings, on the back of the digital camera 100, the direction button 21, the menu-OK button 22, the wide angle (Zoom) button (W), the telephoto (Zoom) ) Button T, the display panel 25 and the like.

The direction button 21 may include four buttons, an up button 21a, a down button 21b, a left button 21c, and a right button 21d. The direction button 21 and the menu-OK button 22 are keys for executing various menus relating to the operation of the digital image processing apparatus such as a digital camera.

The wide-angle zoom button W or the tele-zoom button T has a wider angle of view or a narrower angle of view depending on its input. In particular, it may be used to change the size of the selected exposure area. As the display panel 25, an image display device such as a liquid crystal display (LCD) may be used.

The display panel 25 may be included in the display unit 650 of FIG. 6 in which an image based on storage information and an image based on backup information may be displayed.

Meanwhile, a shutter release button 26, a flash (not shown), a power switch 28, and a lens unit (not shown) may be provided on the front or top surface of the digital camera 100. In addition, the front and rear of the digital camera 100 may be provided with an objective lens and an eyepiece of the viewfinder 27.

The direction button 21, the menu-OK button 22, the shutter release button 26, the power switch 28, and the like are included in the user control unit 660 of FIG. Can be.

The shutter release button 26 is opened and closed to expose the film or an image pickup device such as a charge coupled device (CCD) for a predetermined time. In addition, the shutter release button records an image on the image pickup device by properly exposing a subject in association with an aperture (not shown).

On the other hand, the shutter release button 26 can be pressed in two stages. When the shutter release button 26 is pressed in one end, the first signal S1 may be generated, and when the shutter release button 26 is pressed in one step, the second signal S2 may be generated. A photographing preparation operation may be performed by the first signal S1, and photographing may be performed by the second signal S2.

As an embodiment of a digital image processing apparatus to which the present invention can be applied, a digital camera, a control apparatus, and a control method thereof are disclosed in US Patent Application Publication No. 2004/0130650 (name: automatic using a secondary function of the camera). Method of automatically focusing using a quadratic function in camera.

Matters relating to the digital camera, the control apparatus, and the control method disclosed in the above-mentioned US application will be included in the present specification, the detailed description thereof will be omitted.

2 is a block diagram of a control device 200 of a digital image processing apparatus, which is a preferred embodiment of the present invention. The control device 200 of the digital image processing apparatus may be mounted in the digital camera 100 of FIG. 1.

Referring to the drawing, an optical system OPS including a lens unit and a filter unit optically processes light from a subject. The lens unit of the optical system OPS includes a zoom lens, a focus lens, and a compensation lens. When the user presses the wide-angle zoom button W or the tele-zoom button T included in the user input unit INP, a signal corresponding thereto is input to the microcontroller 212.

Accordingly, as the microcontroller 212 controls the lens driver 210, the zoom motor M _Z is driven to move the zoom lens. That is, when the wide-zoom button W is pressed, the focal length of the zoom lens is shortened to widen the angle of view, and when the tele-zoom button T is pressed, the focal length of the zoom lens becomes long and the angle of view is narrowed.

On the other hand, in the auto focusing mode, the main controller embedded in the digital signal processor 207 controls the lens driver 210 through the microcontroller 212, whereby the focus motor M _F is driven. do. That is, the focus lens is moved to a position where the sharpest picture is obtained by driving the focus motor M _F.

The compensation lens compensates for the overall refractive index and is not driven separately. Reference numeral M _A denotes a motor for driving an aperture (not shown).

In the filter section of the optical system OPS, an optical low pass filter removes optical noise of high frequency components. Infra-Red cut filter cuts the infrared component of the incident light.

The photoelectric conversion unit OEC may include an imaging device such as a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS). The photoelectric conversion unit OEC converts light from the optical system OPS into an electrical analog signal.

The analog-to-digital converter may include a CDS-ADC (Correlation Double Sampler and Analog-to-Digital Converter) device 201. The analog-to-digital converter processes the analog signal from the photoelectric converter (OEC), removes the high frequency noise, adjusts the amplitude, and converts the analog signal into a digital signal. Here, the digital signal processor 207 controls the timing circuit 202 to control the operation of the photoelectric converter OEC and the analog-to-digital converter 201.

The optical system OPS, the photoelectric conversion unit OEC, the CDS-ADC element 201, and the like may be included in the image input unit 610 of FIG. 6.

The real time clock 203 provides time information to the digital signal processor 207. The digital signal processor 207 processes digital signals from the CDS-ADC element 201 to generate digital image signals classified into luminance (Y value) and chromaticity (R, G, B) signals.

The light emitting unit LAMP driven by the microcontroller 212 under the control of the main controller built in the digital signal processor 207 includes a self-timer lamp, an auto-focus lamp, a mode indicating lamp, a flash standby lamp, and the like. May be included.

The digital signal processor 207 and / or the microcontroller 212 may be included in the controller 620 of FIG. 6 according to the present invention. In addition, the user input input by the operation of the user manipulation unit 650 of FIG. 6 is input to the digital signal processor 207 and / or the microcontroller 212 through the user input unit INP, and processed. The work may be performed accordingly.

The digital image signal from the digital signal processor 207 is temporarily stored in the DRAM (Dynamic Random Access Memory) 204. The EEPROM (Electrically Erasable and Programmable Read Only Memory) 205 stores algorithms and setting data such as a boot program and a key input program required for the operation of the digital signal processor 207. In the memory card interface 206, a user's memory card may be attached or detached.

The memory card recognized through the flash memory or the memory card interface 206 mounted therein may store non-volatile storage information or backup information. The first storage unit 630 and / or the second storage unit of FIG. 640 may be included.

In this case, the first storage unit 630 may include an external memory mounted to be detachably attached to the storage information. In addition, the second storage unit 640 may include internal memory mounted therein to store backup information.

In addition, the storage information may be nonvolatilely stored in the first storage unit 630. That is, the first storage unit 630 may include a memory card in which the storage information is stored in a nonvolatile manner.

In addition, the second storage unit 640 may store the backup information in a nonvolatile manner. That is, the second storage unit 640 may include a flash memory in which backup information is stored non-volatilely.

In this case, the photographed picture may be basically stored in the first storage unit 630 as storage information. However, unlike the intention of the user, the stored information may be deleted due to a user's mistake or an error in key manipulation.

Therefore, in the present invention, when an event generated by a user's operation or a specific event automatically set occurs, the second storage unit 640 stores the stored information including the captured picture stored in the first storage unit 630 by detecting the event. Make it possible to save automatically.

In this case, the image file deleted from the second storage unit 640 is deleted even when the storage information such as an image file is deleted from the first storage unit 630 which is a basic storage medium due to a user's mistake or an error in key manipulation. Can be recovered.

The digital image signal from the digital signal processor 207 is input to the display panel driver 214, whereby the image is displayed on the display panel 215. The display panel 215 may be driven by the display panel driver 214 under the control of the digital signal processor 207.

The display panel 215 and the display panel driver 214 may be included in the display unit 650 of FIG. 6 in which an image based on storage information or an image based on backup information may be displayed.

On the other hand, the digital image signal from the digital signal processor 207 can be transmitted by serial communication via a universal serial bus (USB) connection portion 31a or an RS232C interface 208 and the connection portion 31b thereof, and a video filter ( 209 and through the video output unit 31c. Here, the digital signal processor 207 may have a microcontroller therein.

The audio processor 213 outputs the audio signal from the microphone MIC to the digital signal processor 207 or the speaker SP, and outputs the audio signal from the digital signal processor 207 to the speaker SP.

The digital image processing apparatus 600 of FIG. 6 and the control method S300 of the digital image processing apparatus according to the present invention detect the occurrence of a specific event and store the stored information stored in the first storage unit 630 of FIG. It can be backed up to the storage unit (640 of FIG. 6).

In this case, the first storage unit 630 may be a default storage medium in which storage information including a photographed picture or a picture input from the outside is basically stored. In addition, the second storage unit 640 may be an additional storage medium that backs up the storage information stored in the first storage unit 630 as it is or converts it into backup information having a predetermined capacity.

That is, storage information including the photographed picture may be basically stored in the first storage unit 630. However, unlike the intention of the user, the stored information may be deleted due to a user's mistake or an error in key manipulation.

In this case, in the present invention, when an event generated by a user's operation or a specific event automatically set occurs, the second storage unit 640 detects this and converts the stored information stored in the first storage unit 630 as it is or into backup information. To be automatically saved.

When the input of a power off signal is detected, a preset set time elapses after the sleep mode is activated, or a user operation to remove the external memory, which is the default storage medium, is detected. Stored information stored in the storage unit 630 may be automatically backed up to the second storage unit 640.

According to the present invention, an image file deleted from the second storage unit 640 even when storage information such as an image file is deleted from the first storage unit 630 which is a basic storage medium due to a user's mistake or an error in key manipulation. Can be recovered.

When the input of the power off signal is detected in each of FIGS. 3 to 5, when the preset set time elapses after the sleep mode is activated, the external memory as the default storage medium is detected. If the user manipulation to be removed is detected, the control method of the digital image processing apparatus for automatically backing up the stored information stored in the first storage unit 630 to the second storage unit 640 for each (S300, S400, S500). ) Is shown.

3 is a flowchart of a control method (S300) of a digital image processing apparatus as a first preferred embodiment according to the present invention.

The control method S300 of the digital image processing apparatus may be implemented in the control apparatus 200 of the digital image processing apparatus of FIG. 2 and / or the digital image processing apparatus 600 of FIG. 6. To this end, the control method S300 of the digital image processing apparatus according to the present invention may be a program or algorithm stored in the storage means of FIG. 2 or implemented in the form of a semiconductor chip such as firmware.

In the control method (S300) of the digital image processing apparatus according to the present invention, when the input of a power off signal is detected, the stored information stored in the first storage medium included in the first storage unit 630 is intact. Alternatively, the information is converted into backup information having a preset capacity and automatically backed up to a second storage medium included in the second storage unit 640.

To this end, the control method (S300) of the digital image processing apparatus includes a backup command input step (S310, S330); Backup information conversion step (S340); Backup information storing step (S350 to S370); And backup finishing steps S380 and S390.

In the backup command input steps S310 and S330, a backup command for converting storage information of the first storage medium into backup information and storing the backup information in the second storage medium is received. In the backup information converting step (S340), the stored information is converted into the backup information.

In the backup information storage steps S350 to S370, backup information is stored in a second storage medium. In the backup finishing steps S380 and S390, when the backup of the backup information is completed, the original work is performed so that the backup command is detected.

The control method (S300) of the digital image processing apparatus according to the present invention may be performed when a built-in memory backup mode is selected by a menu or a hot key and the like is photographed. In this case, the internal memory backup mode detects occurrence of a specific event, and when the specific event occurs, backs up storage information stored in the first storage medium including the external memory to the second storage medium including the internal memory. to be.

In the backup command input step (S310, S330) for receiving a backup command, a predetermined specific event is detected and a backup command is input when a corresponding event occurs. That is, a backup command is input when an event of an input of a power off signal is detected.

To this end, it is first determined whether there is an input of a power-off signal (S310). In this case, when it is determined that the power-off signal is input, a command of whether to back up the stored information may be input.

In this case, the display panel (25 of FIG. 1) may be provided with a user interface such as a dialog box for selecting whether to back up the stored information, and the user may be able to select whether to back up the stored information. At this time, if the selection of the backup of the storage information is input by the user's selection, the storage information may be backed up from the first storage medium to the second storage medium.

In the backup information converting step (S340), the stored information is converted into backup information. In this case, the backup information may be a file having a set capacity. The capacity of the file stored as backup information may be set automatically or adaptively by user selection or in consideration of the storage space of the internal memory.

Preferably, the capacity of the file stored as the backup information may be the minimum capacity in consideration of the limitation of the storage space of the internal memory. Also, as another embodiment, the backup information may be the stored information itself so that there is no data loss.

Meanwhile, the storage information may be converted into backup information on a file basis. That is, the storage information may be converted into backup information on a file basis and stored in the internal memory.

In the backup information storage steps S350 to S370, backup information may be stored in an internal memory. In this case, the storage capacity of the internal memory may be checked, and if the capacity is insufficient, the backup information may be deleted in file order in the order of storage.

To this end, the backup information storing steps S350 to S370 may include an internal memory capacity checking step S350, a backup information deleting step S360, and a storing step S370.

In the internal memory capacity checking step (S350), it is determined whether the capacity of the internal memory is exceeded by storing the backup information. In the backup information deleting step S360, when it is determined that the capacity of the internal memory is exceeded, the backup information is deleted in the file unit in the order in which the backup information is first stored in the internal memory. In the storage step S370, the backup information is stored in the internal memory.

In the backup finishing steps S380 and S390, when the backup of the backup information is completed, the original work is performed so that the backup command is detected. To this end, it may be determined whether the storage of the final backup information in the internal memory is completed (S380), and when the backup information is stored in the internal memory, the power-off operation may be performed (S390).

According to the present invention, even when stored information such as an image file is deleted from an external memory which is a basic storage medium due to a user's mistake or an error in key manipulation, the deleted image file can be recovered from the internal memory.

4 is a flowchart of a control method (S400) of a digital image processing apparatus as a second preferred embodiment according to the present invention.

The control method S400 of the digital image processing apparatus may be implemented in the control apparatus 200 of the digital image processing apparatus of FIG. 2 and / or the digital image processing apparatus 600 of FIG. 6. To this end, the control method S400 of the digital image processing apparatus according to the present invention may be a program or algorithm stored in the storage means of FIG. 2 or implemented in the form of a semiconductor chip such as firmware.

In the control method (S400) of the digital image processing apparatus according to the present invention, the first storage medium included in the first storage unit 630 when a preset set time elapses after the sleep mode is activated. The stored information stored in the storage device is converted into backup information of a predetermined capacity as it is or automatically backed up to a second storage medium included in the second storage unit 640.

To this end, the control method (S400) of the digital image processing apparatus includes a backup command input step (S430); Backup information conversion step (S440); Storing backup information (S450 to S470); And backup finishing steps S480 and S490.

According to the present embodiment, when a preset set time is detected after the sleep mode is activated, the stored information stored in the first storage medium is converted into the backup information of the preset capacity as it is or converted into the second storage medium. It is automatically backed up, and reference is made to the same items as in the embodiment shown in FIG. 3.

In the backup command input step S430, a backup command for converting storage information of the first storage medium into backup information and storing the backup information in the second storage medium is received. In the backup information conversion step (S440), the stored information is converted into backup information.

In the backup information storage steps S450 to S470, backup information is stored in a second storage medium. In the backup finishing steps S480 and S490, when the backup of the backup information is completed, the original work is performed so that the backup command is detected.

The control method (S400) of the digital image processing apparatus according to the present invention may be performed when the built-in memory backup mode is selected by a menu or a hot key, and is photographed.

In the backup command input step (S430) of receiving the backup command, it is determined whether the set time has elapsed after the sleep mode is activated, and a predetermined set time, for example, about 15 seconds has been detected after the sleep mode has been activated. In this case, backup command can be input.

In the backup finishing steps S480 and S490, when the backup of the backup information is completed, the original work is performed so that the backup command is detected. To this end, it is determined whether the storage of the final backup information in the internal memory is completed (S480), and when the backup information is stored in the internal memory, the operation for the sleep mode operation may be performed (S490).

According to the present invention, even when stored information such as an image file is deleted from an external memory which is a basic storage medium due to a user's mistake or an error in key manipulation, the deleted image file can be recovered from the internal memory.

5 is a flowchart of a control method (S500) of a digital image processing apparatus as a third preferred embodiment according to the present invention.

The control method S500 of the digital image processing apparatus may be implemented in the control apparatus 200 of the digital image processing apparatus of FIG. 2 and / or the digital image processing apparatus 600 of FIG. 6. To this end, the control method S500 of the digital image processing apparatus according to the present invention may be a program or algorithm stored in the storage means of FIG. 2 or implemented in the form of a semiconductor chip such as firmware.

In the control method (S500) of the digital image processing apparatus according to the present invention, when a user operation to remove the external memory, which is the default storage medium, is detected, the storage information stored in the external memory, which is the default storage medium, is backed up as it is or with a preset capacity. The information is converted and automatically backed up to internal memory.

To this end, the control method (S500) of the digital image processing apparatus includes a backup command input step (S510 to S530); Backup information conversion step (S540); Storing backup information (S550 to S570); And backup finishing steps S580 and S590.

According to the present exemplary embodiment, when a user manipulation of removing the external memory, which is a default storage medium, is detected, the stored information stored in the external memory is automatically converted into backup information of the preset capacity as it is or automatically backed up to the internal memory. Reference is made to the same items as in the embodiment shown in FIG. 4.

In the backup command input steps S510 to S530, a backup command for converting storage information of the first storage medium into backup information and storing the backup information in the second storage medium is received. In the backup information converting step (S540), the stored information is converted into backup information.

In the backup information storage steps S550 to S570, backup information is stored in a second storage medium. In the backup finishing steps S580 and S590, when the backup of the backup information is completed, the original work is performed so that the backup command is detected.

The control method (S500) of the digital image processing apparatus according to the present invention may be performed when the internal memory backup mode is selected by a menu or a hot key and the like is photographed.

In the backup command input steps S510 to S530 that receive the backup command, the backup command may be input when a user operation to remove the external memory is detected.

At this time, the backup command input step (S510 to S530) is the step of detecting the removal operation of the first storage medium (S510), the step of locking the removal of the first storage medium when the removal operation of the first storage medium is detected ( And receiving an instruction of whether to back up the stored information (S530).

In this case, the command input step S530 provides a display panel (25 in FIG. 1) with a user interface such as a dialog box for selecting whether or not to store the stored information, and the user can select whether to back up the stored information. You can make a choice. At this time, if the selection of the backup of the storage information is input by the user's selection, the storage information may be backed up from the first storage medium to the second storage medium.

In the backup finishing steps S580 and S590, when the backup of the backup information is completed, the original work is performed so that the backup command is detected. To this end, it may be determined whether the storage of the final backup information in the internal memory is completed (S580), and when the backup information is stored in the internal memory, the first storage medium may be unlocked (S590).

In this case, the first storage medium may include an external memory such as a memory card, and the external memory may be inserted into and inserted into the socket. In this case, a separate locking device may be provided in the socket of the external memory mounted inside the separate protective cover.

When the protective cover is opened, the removal operation of the external memory may be detected in operation S510 of detecting the removal operation of the first storage medium. In addition, when it is detected that the protective cover is opened, the removal operation of the first storage medium is detected, and the external memory socket may be locked in operation S520 of locking the removal of the first storage medium.

In addition, when the backup information is stored in the internal memory, the external memory socket may be unlocked to separate the external memory (S590).

According to the present invention, even when stored information such as an image file is deleted from an external memory which is a basic storage medium due to a user's mistake or an error in key manipulation, the deleted image file can be recovered from the internal memory.

6 is a block diagram of a digital image processing apparatus 600 according to a preferred embodiment of the present invention. The digital image processing apparatus 600 may be controlled by the control method S300 of the digital image processing apparatus illustrated in FIG. 3.

Referring to the drawings, the digital image processing apparatus 600 includes an image input unit 610; A controller 620; A first storage unit 630; A second storage unit 640; Display unit 650; And a user manipulation unit 660. Since the digital image processing apparatus 600 is controlled by the control method S300 of the digital image processing apparatus illustrated in FIG. 3, the same matters as in the description of FIG. 3 will be referred to.

The image input unit 610 receives an input image. The controller 620 receives a backup command for storing the stored information from the first storage unit 630 to the second storage unit 640, and controls the storage information to be backed up to the second storage unit 640.

The first storage unit 630 stores storage information including a photographed picture or a picture input from the outside. The storage information is backed up in the second storage unit 640. In this case, the storage information may be converted as it is or converted into backup information of a predetermined capacity and backed up to the second storage unit 640.

The display unit 650 may display a picture included in the storage information or a picture included in the backup information. The user operation unit 660 manipulates a user to input a desired command from the outside.

In this case, a user interface such as a dialog box in which a user may select whether to back up the stored information is displayed on the display unit 650, and thus a user input may be received. In this case, the display unit 650 may be implemented as a touch panel, and the display unit 650 may be included in the user manipulation unit 660 that receives a user input.

The image input unit 610 receiving the input image may include the optical system OPS, the photoelectric converter OEC, the CDS-ADC device 201, and the like of FIG. 2.

The digital image processing apparatus 600 according to the present invention may be performed when a built-in memory backup mode is selected by a menu or a hot key or the like and is photographed.

The controller 620 may receive a backup command for storing the stored information from the first storage unit 630 to the second storage unit 640 and control the storage information to be backed up to the second storage unit 640.

In this case, the backup command may be input by detecting a power-off signal, a set time elapsed after the sleep mode operation, or a removal operation of the storage medium included in the first storage unit.

A user interface such as a dialog box for selecting whether to back up the stored information may be provided on the display panel 25 of FIG. 1, and the user may select whether to back up the stored information. At this time, if the selection of the backup of the storage information is input by the user's selection, the storage information may be backed up from the first storage medium to the second storage medium.

The backup information may be a file having a set capacity. The capacity of the file stored as backup information may be set automatically or adaptively by user selection or in consideration of the storage space of the internal memory.

Preferably, the capacity of the file stored as the backup information may be the minimum capacity in consideration of the limitation of the storage space of the internal memory. Also, as another embodiment, the backup information may be the stored information itself so that there is no data loss.

Meanwhile, the storage information may be converted into backup information on a file basis. That is, the storage information may be converted into backup information on a file basis and stored in the internal memory.

In addition, when the capacity of the second storage unit 640 is exceeded by storing the backup information, the second storage unit 640 may delete the backup information on a file basis in the order of storing the backup information.

The storage information is stored in the first storage unit 630. The storage information stored in the first storage unit 630 is backed up in the second storage unit 640.

In this case, the first storage unit 630 may include an external memory mounted to be detachably attached to the storage information. In addition, the second storage unit 640 may include internal memory mounted therein to store backup information.

In addition, the storage information may be nonvolatilely stored in the first storage unit 630. That is, the first storage unit 630 may include a memory card in which the storage information is stored in a nonvolatile manner.

In addition, the second storage unit 640 may store the backup information in a nonvolatile manner. That is, the second storage unit 640 may include a flash memory in which backup information is stored non-volatilely.

When a specific event occurs in which a user mistake or an error in key manipulation may occur, the stored information stored in the first storage unit 630 may be backed up to the second storage unit 640. Therefore, even if stored information such as an image file is deleted from the first storage unit 630 which is a basic storage medium due to a user's mistake or an error in key manipulation, the deleted image file may be recovered from the second storage unit 640. Can be.

In this case, the first storage unit 630 may include an external memory such as a memory card, and the external memory may be inserted into and inserted into the socket. In this case, the external memory socket may be mounted inside a separate protective cover. In addition, a separate locking device may be provided in the socket of the external memory.

When the protective cover is opened, you can detect the removal operation of the external memory. In addition, when it is detected that the protective cover is opened, the removal operation of the first storage medium is detected, and the external memory socket can be locked.

In addition, when the backup information is stored in the internal memory and the backup ends, the external memory socket may be unlocked to detach the external memory.

The user manipulation unit 660 may be manipulated by a user to input a desired command from the outside. The direction button (21 in FIG. 1), the menu-OK button (22 in FIG. 1), the shutter release button (26 in FIG. 1), the power switch (28 in FIG. 1), and the like are provided on the user control unit (660 in FIG. 6). May be included.

According to the present invention, even when stored information such as an image file is deleted from an external memory which is a basic storage medium due to a user's mistake or an error in key manipulation, the deleted image file can be recovered from the internal memory.

Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, it is merely an example, and those skilled in the art may realize various modifications and equivalent other embodiments therefrom. I can understand. Accordingly, the true scope of protection of the invention should be defined only by the appended claims.

1 is a diagram illustrating a rear surface of a digital camera as an embodiment of a digital image processing apparatus according to the present invention.

FIG. 2 is a block diagram schematically illustrating a control apparatus that may be included in the digital camera of FIG. 1.

3 is a flowchart schematically illustrating a control method of a digital image processing apparatus as a first preferred embodiment according to the present invention.

6 is a flowchart schematically illustrating a control method of a digital image processing apparatus as a second preferred embodiment according to the present invention.

5 is a flowchart schematically illustrating a method of controlling a digital image processing apparatus as a third preferred embodiment according to the present invention.

6 is a block diagram schematically showing a digital image processing apparatus according to a preferred embodiment of the present invention.

Claims (17)

Receiving a backup command for converting storage information of the first storage medium into backup information and storing the backup information in the second storage medium; Converting the stored information into the backup information; And And storing the backup information in the second storage medium. The method of claim 1, Determining that the capacity of the second storage medium is exceeded by storing the backup information; And And deleting the backup information in the second storage medium in the order in which the backup information is stored first. The method of claim 1, The control method of the digital image processing apparatus which receives the backup command by detecting a power-off signal, a set time elapsed after a sleep mode operation, or an operation of removing the first storage medium. The method of claim 3, When receiving the backup command by detecting the input of the power off signal, Receiving the power off signal; Receiving an instruction of whether to back up the stored information; And And performing a power-off operation when the storing of the backup information on the second storage medium is completed. The method of claim 3, In case that the backup command is input after detecting a set time elapsed after the sleep mode operation, Determining whether a set time has elapsed after the sleep mode operation; And And performing a sleep mode operation when the storing of the backup information on the second storage medium is completed. The method of claim 3, When the backup command is received by detecting the removal operation of the first storage medium, Detecting a removal operation of the first storage medium; Locking the removal of the first storage medium when a removal operation of the first storage medium is detected; Receiving an instruction of whether to back up the stored information; And And unlocking the first storage medium when the backup information is completely stored in the second storage medium. The method of claim 1, The first storage medium is a removable external memory, the second storage medium is a control method of the digital image processing apparatus is an internal memory mounted in the digital image processing apparatus. The method of claim 1, And converting the stored information into the backup information in units of files. The method of claim 1, And the storage information is converted into the backup information having a preset file capacity or minimum capacity. A first storage unit storing stored information; A second storage unit for backing up the stored information; And And a control unit which receives a backup command for storing the stored information from the first storage unit to the second storage unit and controls the storage information to be backed up to the second storage unit. The method of claim 10, And an external memory capable of detaching the first storage part, and an internal memory mounted inside the second storage part. The method of claim 10, And the storage information is converted into backup information having a predetermined file capacity or minimum capacity and stored in the second storage unit. The method of claim 12, And converting the stored information into the backup information in file units. The method of claim 12, And in case the capacity of the second storage unit is exceeded by storing the backup information, the second storage unit deletes the backup information in the order of first storage. The method of claim 12, And a backup command by sensing a power-off signal, a set time elapsed after a sleep mode operation, or an operation of removing a storage medium included in the first storage unit, and receiving the backup command. The method of claim 12, A digital image processing apparatus comprising: providing a user interface to select whether to back up the user, and receiving a command of whether to back up the stored information according to a user's selection. The method of claim 11, The first storage unit has a locking device to prevent the external memory from being separated, Detecting that the external memory is removed, locking the lock device, and unlocking the lock device after the backup ends.

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