KR101411311B1 - Digital photographing apparatus and method for controlling the same - Google Patents

Abstract

The present invention is to provide a digital photographing apparatus and a control method thereof having a PDA function with excellent extensibility and other application programs, and it is an object of the present invention to perform a PDA mode by executing a first operating system, And a control method thereof.

Digital processing device, PDA, dual operating system, dual operating system

Description

[0001] Digital photographing apparatus and method for controlling same [0001]

The present invention relates to a digital photographing apparatus for photographing a subject to generate a video signal.

Digital convergence technology that allows one digital device to perform multi-functions is emerging as a new trend.

The present inventor tried to add a PDA function to a digital photographing apparatus. However, in general, a digital photographing apparatus uses an RTOS. In this way, it is not possible to use a general OS such as Windows CE and Linux in the digital photographing apparatus using the RTOS, and the user can not directly install the program desired by the user.

An object of the present invention is to provide a digital photographing apparatus having a PDA function with excellent expandability and a control method thereof.

The present invention provides a control method of a digital photographing apparatus including an image pickup section for photographing a subject to generate an image signal, a main storage section for temporarily storing the image signal, and a display section for displaying the image signal, Loading a first code for executing a first operating system and executing a PDA mode by executing the first operating system, loading a second code for executing a second operating system in the main memory, And performing a photographing mode by executing the photographing mode.

In the method of controlling a digital photographing apparatus according to the present invention, the loading and holding of the first code may be performed while power is connected to the main storage unit. Here, the power source is connected, for example, a battery, which is an example of a power source, is inserted into the digital photographing apparatus and power is supplied to the main storage unit.

The control method of the digital photographing apparatus according to the present invention may further comprise a central processing unit for controlling the operation of the digital photographing apparatus. When power is supplied to the central processing unit, the first operating system is executed according to the first code .

The control method of the digital photographing apparatus according to the present invention may further include the step of executing a boot loader system.

The control method of the digital photographing apparatus according to the present invention further includes selecting a PDA mode, and selectively execute the first operating system by the boot loader system when the PDA mode is selected.

The control method of the digital photographing apparatus according to the present invention may further include the step of selecting a photographing mode, and the second operating system may be executed by the boot loader system when the photographing mode is selected.

The control method of the digital photographing apparatus according to the present invention may further include selecting the photographing mode after performing the PDA mode, and when the photographing mode is selected, the second code is loaded and the second operating system is executed have.

The control method of the digital photographing apparatus according to the present invention further includes selecting a PDA mode after performing the photographing mode, and when the PDA mode is selected, a second code And execute the first operating system according to the first code.

According to another aspect of the present invention, there is provided a digital photographing apparatus including an image pickup section for photographing a subject to generate an image signal, a main storage section for temporarily storing the image signal, and a display section for displaying the image signal, Further comprising a first operating system storage unit storing an operating system and a second operating system storing unit storing a second operating system supporting the photographing mode, A second operating system and a second operating system in accordance with the first code or the second code loaded in the first operating system or the second operating system, and controls the first operating system or the second operating system to execute according to the loaded first code or the second code.

The digital photographing apparatus according to the present invention may further include a boot loader recording a boot loader system for controlling the operating system to be executed before the first operating system and the second operating system to be executed in the main storage unit .

The digital photographing apparatus according to the present invention may further include an operation unit activated by the boot loader system and inputting an external signal to select the first operating system and the second operating system.

The digital photographing apparatus according to the present invention may further comprise a power supply unit for supplying power to the main memory unit so that the first code is loaded and the digital photographing apparatus is driven.

The present invention can provide a digital photographing apparatus suitable for performing both the PDA function and the photographing function by separately storing an operating system supporting the PDA mode having excellent scalability and an operating system supporting the photographing mode.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the following description, only parts necessary for understanding the operation according to the present invention will be described, and descriptions of other parts may be omitted so as not to disturb the gist of the present invention.

It is also to be understood that the terms and words used in the present specification and claims are not to be construed in a limiting sense or in a dictionary sense and are not to be construed as limiting the scope of the present invention to the best mode for carrying out the invention. It should be interpreted as meaning and concept. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely examples of the present invention and do not represent all the technical ideas of the present invention, so that various variations Can be.

Fig. 1 is a diagram showing the back surface of a digital photographing apparatus according to the present invention having a PDA function. A display unit such as a liquid crystal display (LCD) is provided on the back of the digital photographing apparatus 100, and an image of the subject is displayed in the photographing mode on the display unit. In the PDA mode, do. Specifically, icons for executing application programs such as a word, an Excel, and the Internet can be displayed.

Fig. 2 is a block diagram of the digital photographing apparatus shown in Fig. 1, and Fig. 3 is a block diagram showing an example of the storing section 140 of the digital photographing apparatus shown in Fig.

The digital photographing apparatus 100 according to the present embodiment includes a power supply unit 110, an operation unit 120, a central processing unit (CPU) 130, a storage unit 140, an auxiliary storage unit 150, a communication unit 160, 170, an image pickup unit 180, and a video signal processing unit 190.

Specifically, the power supply unit 110 supplies a predetermined power to operate the digital photographing apparatus. In addition, power is supplied to the storage unit 140, particularly, the main storage unit 141 to maintain the data stored in the main storage unit 141. [ The power supply unit 110 may include a battery such as a lithium ion battery, which may be built in, and / or an interface connected to an external power source.

The operation unit 120 includes buttons for allowing a user or the like to perform operations of the photographing apparatus or perform various settings when photographing or photographing. For example, a power button for applying power to operate the digital photographing apparatus, a release button for photographing a subject, a function button for selecting a photographing mode or a reproduction mode, and setting an effect parameter. The shape of the operation unit 120 is not limited to a button but may have various shapes such as a touch screen, a touch pad, and a remote controller. The digital photographing apparatus having the PDA function according to the present invention is preferably in the form of a touch screen in order to make the area of the display unit 170 as wide as possible.

The CPU 130 controls the entire operation of the digital photographing apparatus. The CPU 130 processes data according to an operating system stored in the storage unit 140 and controls each of the components. Performs a predetermined operation according to the operating system, temporarily stores the operation result, and controls each component according to the operation result. For example, the present invention controls each of the components to perform the PDA mode or the photographing mode according to the first operating system or the second operating system stored in the storage unit 140, respectively.

The storage unit 140 according to the present invention includes a first operating system storage unit 145 storing the first operating system and a second operating system storing unit 145 storing the second operating system. The code for executing the second operating system recorded in the first operating system storage unit 145 or the second operating system storage unit 145 recorded in the first operating system storage unit 145 is temporarily copied or temporarily stored in the image pickup unit And a main storage unit 141 for temporarily storing the video signal provided from the video signal processing unit 190. The main storage unit 141 is connected to the power supply unit 110 so that the main storage unit 141 is supplied with the predetermined power so as to maintain data about the first operating system temporarily stored. The first operating system performs the PDA mode, and is capable of using various application programs, thus being excellent in terms of scalability but slow in operation. Therefore, before the signal for performing the PDA mode is input, the main CPU 141 loads the code for executing the first operating system into the main memory 141 in advance to execute the first operating system. At this time, in advance, the power supply unit 110 is connected to the main storage unit 141 separately from the power supply to the CPU 130 before the signal is inputted to operate the digital photographing apparatus, that is, . For example, if the power source unit 110 is an internal battery, the battery may be inserted into the digital photographing apparatus.

More specifically, an embodiment of the storage unit 140 will be described. It is a general operating system for performing PDA mode, and can use Windows CE, Palm OS, Celib OS, Linux and the like with high scalability. In order to support the shooting mode, the real-time operating system (RTOS) can be used, which has a relatively low scalability but a high speed.

3, the storage unit 140 includes a first storage unit 141 that stores and holds predetermined data while power is supplied, and a second storage unit 145 that records and maintains the operating system regardless of whether power is supplied or not ). The first storage unit 141 is an example of the periodic storage unit 141 shown in FIG.

An RTOS unit for dividing the first storage unit 141 into three blocks and storing a code for executing the RTOS from the second storage unit 145, an image pickup unit 180, a video signal processing unit 190, And a general OS unit for copying and storing a code for executing a general OS from the second storage unit 145. [ The term storage unit may also serve to temporarily store data to be processed in executing a general OS, i.e., performing a PDA mode.

Also, the second storage unit 145 may include a boot loader unit for storing a boot loader program supporting the dual operating system by dividing the second storage unit into three blocks, an RTOS unit storing the RTOS, a Gemeral OS unit can be configured.

Although not shown in the drawing, the first storage unit 141 and the second storage unit 145 may record various application programs.

Referring again to FIG. 2, the digital photographing apparatus includes an auxiliary storage unit 150. FIG. The auxiliary storage unit 150 may store the application programs or image signals provided from the image pickup unit 180 and the image signal processing unit 190. [ The auxiliary storage unit 150 may be a fixed type semiconductor memory such as an external flash memory or a semiconductor memory such as a card type flash memory which is formed into a card shape or a stick shape and can be freely attached / Magnetic storage media, and the like can be applied.

And a codec 155 for storing the data in the auxiliary storage unit 150 or performing a compression or decompression process to read the data stored in the auxiliary storage unit 150. [

In addition, the digital photographing apparatus includes a communication unit 160, and can transmit and receive data stored in the storage unit 140 or necessary data from the outside.

The digital photographing apparatus includes a display unit 170 for displaying a photographed image signal in a photographing mode or an image of a subject recognized as a preview function, and displaying information and icons to be managed in the PDA mode. And a display driver 175 for converting the signal into an appropriate signal for display on the display unit 170. [ Various display devices such as a liquid crystal display (LCD), an organic light emitting diode (OLED), and an electrophoretic display (EDD) may be used as the display unit 170.

The image pickup section 180 generates a video signal corresponding to the object. Specifically, when a photographing signal (release signal) is input by the operation unit 120, light having passed through the zoom lens 181, the focus lens 183, and the diaphragm 185 is received by the image pickup device 187, Dimensional image. The image pickup element 187 includes a CCD (Charge Coupled Device) or a CIS (Complementary Metal Oxide Semiconductor Image Sensor) for converting an optical signal into an electric signal.

The zoom lens 181 and the focus lens 183 in the image sensing unit 180 are respectively controlled by the zoom lens driving unit 182 and the focus lens driving unit 183 and the diaphragm 185 is driven by the diaphragm driving unit 184 The degree of opening and the like are controlled. The sensitivity of the image pickup element 187 is also controlled by the image pickup element controller 188. The zoom lens driving unit 182, the focus lens driving unit 184, the diaphragm driving unit 186, and the imaging element control unit 188 receive control signals from the CPU.

The electric signal generated by the image pickup device 187 is subjected to predetermined signal processing by the image signal processing unit 190. [ Specifically, it converts analog signals to digital signals, and performs signal processing such as Auto White Balance, Auto Exposure, and Gamma Correction to convert image data to human vision. Thereby improving the picture quality and outputting an image signal of an improved picture quality. The signal processor 130 performs image processing such as color filter array interpolation, color matrix, color correction, color enhancement, and the like.

4 is a control method of a digital photographing apparatus according to an embodiment of the present invention.

First, connect power to the digital imaging device. As a concrete example, a battery is inserted (S10).

When power is supplied to the main storage unit (141 in FIG. 2), the main storage unit copies the first code executing the first operating system from the first operating system storage unit (145 in FIG. 2) and converts the first code into executable code ). The first operating system is a program supporting the PDA mode, which is excellent in scalability but slow in speed. Therefore, before the signal to execute the PDA mode is inputted, the codes are prepared in advance by copying.

Power is supplied to the digital photographing apparatus (S12). This is a step in which power is supplied to the CPU to operate the digital photographing apparatus.

The digital photographing apparatus enters the standby mode (S13). Of course, if the power is supplied without the standby mode, the standby mode can be set to the PDA mode or the shooting mode immediately.

In the standby mode, it is determined whether to select the PDA mode (S14). At this time, judgment may be made automatically by a user or the like, or under specific conditions. For example, when the user presses the power button, the PDA mode is selected, and when the release button is pressed, the user can select the shooting mode.

When the PDA mode is selected, the first operating system supporting the PDA mode is executed (S15), and the PDA mode is performed (S16). The first operating system is capable of using various application programs as described above. The first operating system has excellent scalability but is slow in speed. Therefore, when the battery is connected to the main storage unit before power is supplied through the power button, A first code for executing the first operating system is copied in advance. When a signal for selecting the PDA mode is inputted, the first operating system is executed according to the first code temporarily stored in the main memory unit.

If the PDA mode is not selected, the second operating system supporting the photographing mode is executed (S17), and the photographing mode can be performed (S18). The second operating system is somewhat less scalable but has a high execution speed. When a signal for selecting a photographing mode is input, the second operating system is copied to the main storage unit and converted into executable code for execution .

The method further comprises the step of selecting the photographing mode when the PDA mode is not selected. In the case where the photographing mode is selected, steps S17 and S18 are performed. If the photographing mode is not selected, A PDA mode or a shooting mode may be performed.

Hereinafter, as a method of controlling the digital photographing apparatus according to the present invention, a method of converting from the PDA mode to the photographing mode and from the photographing mode to the PDA mode will be described in detail.

5 is a flow chart for explaining a method for converting from a photographing mode to a PDA mode, and FIG. 6 is a flowchart for explaining a method for converting from a PDA mode to a photographing mode.

Referring to FIG. 5, the PDA mode is executed first (S20). If the photographing mode is selected (21), the second operating system is executed (S23) and the photographing mode is performed (S24). The second operating system supporting the photographing mode is set to execute the desired operation first, and it is possible to execute the photographing operation in real time in real time. Therefore, the user can press the release button, for example, to perform the photographing mode by key operation.

According to Fig. 6, the photographing mode is first executed (S30). If the PDA mode is selected, the second code for executing the second OS stored in the main storage unit is deleted (S32), and the first OS is executed according to the first code stored in the main storage unit (S33). Accordingly, the PDA mode can be performed (S34). The first operating system generally checks and executes data stored in the main storage unit of the digital photographing apparatus and deletes the second code temporarily stored in the main storage unit for the previous photographing mode. Accordingly, when a signal for selecting the PDA mode is input in a state where the second code is deleted in the main storage unit and the first code copied and stored is stored, the first code stored in the main storage unit is recognized, You can run the operating system. And can perform PDA mode.

FIG. 7 is a view showing a state in which a digital photographing apparatus according to the present invention photographs a woman, that is, a photographing mode, FIG. 8 is a diagram showing a state in which the digital photographing apparatus according to the present invention performs a PDA mode to be.

7, a power button 121 for supplying power to the CPU, a releasing button 122 for releasing a release signal for photographing, an enlargement / reduction button 123 for moving the zoom lens, A direction key 124 for performing various functions, and the like. A display unit 170 is disposed on the display unit 170. The display unit 170 displays a video signal corresponding to a subject.

On the other hand, in the PDA mode, various information and icons are displayed on the display unit 170. The display unit 170 may have a touch screen function as an operation unit, and may further include a touch pen 125 as the operation unit.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1 is a perspective view of a digital photographing apparatus according to the present invention.

Fig. 2 is a block diagram of the digital photographing apparatus shown in Fig. 1. Fig.

3 is a block diagram showing an embodiment of a storage unit in the digital photographing apparatus according to the present invention.

4 is a control method of a digital photographing apparatus according to an embodiment of the present invention.

FIG. 5 is a flowchart for explaining a method of converting a photographing mode to a PDA mode according to another embodiment of the present invention.

6 is a flowchart for explaining a method of converting a PDA mode to a photographing mode in a digital photographing apparatus control method according to another embodiment of the present invention.

7 is a view showing that the digital photographing apparatus according to the present invention performs the photographing mode.

8 is a diagram showing that the digital photographing apparatus according to the present invention performs the PDA mode.

Claims (13)

A control method of a digital photographing apparatus having an image capturing section for capturing an image of a subject to generate an image signal, a main storage section for temporarily storing the image signal, and a display section for displaying the image signal, Loading a first code for executing the first operating system in the main memory unit and executing the PDA mode by executing the first operating system; Selecting a photographing mode after performing the PDA mode; And And loading a second code for executing the second operating system in the main storage unit and executing the shooting mode by executing the second operating system when the shooting mode is selected. The method according to claim 1, further comprising: loading and holding the first code in the main storage unit while power is connected to the main storage unit. 3. The digital photographing apparatus according to claim 2, further comprising a central processing unit for controlling the operation of the digital photographing apparatus, And when the power is supplied to the central processing unit, the first operating system is executed according to the first code. 3. The method according to claim 1 or 2, further comprising the step of executing a boot loader system. 5. The method of claim 4, further comprising selecting a PDA mode, Wherein the boot loader system selectively executes the first operating system when the PDA mode is selected. 5. The method of claim 4, further comprising the step of selecting a shooting mode, And when the shooting mode is selected, the boot loader system executes the second operating system. delete A control method of a digital photographing apparatus having an image capturing section for capturing an image of a subject to generate an image signal, a main storage section for temporarily storing the image signal, and a display section for displaying the image signal, Loading a second code for executing a second operating system in the main memory unit and executing the second operating system to perform a photographing mode; Selecting a PDA mode after performing the photographing mode; If the PDA mode is selected, deleting the second code loaded in the main storage unit for performing the photographing mode; And Loading a first code for executing the first operating system in the main memory unit and executing the PDA mode by executing the first operating system; And controlling the digital camera. A digital photographing apparatus comprising: an image capturing section for capturing an image of a subject to generate an image signal; a main storage section for temporarily storing the image signal; and a display section for displaying the image signal, A first operating system storage unit storing a first operating system supporting a PDA mode; A second operating system storage unit recording a second operating system supporting a shooting mode; And A first code for executing the first operating system or a second code for executing the second operating system is loaded into the main memory unit, and the first operating system or the second operating system is loaded according to the loaded first code or the second code, And a control unit for controlling the second operating system to execute, Wherein the control unit loads the second code and executes the second operating system when the photographing mode is selected after performing the PDA mode. 10. The method of claim 9, wherein before running the first operating system and the second operating system, Further comprising a boot loader recording a boot loader system that controls to record the operating system to be executed in the main storage unit. 11. The digital photographing apparatus according to claim 10, further comprising an operating section activated by the boot loader system and inputting an external signal to select the first operating system and the second operating system. The digital photographing apparatus according to claim 9, further comprising a power supply unit for supplying power to the main storage unit so that the first code is loaded and the digital photographing apparatus is driven. A digital photographing apparatus comprising: an image capturing section for capturing an image of a subject to generate an image signal; a main storage section for temporarily storing the image signal; and a display section for displaying the image signal, A first operating system storage unit storing a first operating system supporting a PDA mode; A second operating system storage unit recording a second operating system supporting a shooting mode; And A first code for executing the first operating system or a second code for executing the second operating system is loaded into the main memory unit, and the first operating system or the second operating system is loaded according to the loaded first code or the second code, And a control unit for controlling the second operating system to execute, When the PDA mode is selected after performing the photographing mode, A second code loaded in the main storage unit for performing the photographing mode is erased, And executes the first operating system according to the first code.

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