KR20060072873A - Mobile phone with camera and method for photographing image using it - Google Patents

Abstract

The present invention relates to a mobile communication terminal for capturing an image of a camera by a sound signal input through a microphone and an image capturing method using the same, comprising: a microphone converting a sound signal input from the outside into an electrical analog signal and outputting the sound signal; An A / D converter converting the electrical analog signal input from the microphone into a digital signal; And a control unit for comparing the digital signal level input from the A / D converter with a magnitude of a predetermined image capturing reference signal level, and controlling the photographing of the camera according to the comparison result. .

Mobile terminal, camera, microphone, A / D converter, control unit, sound signal.

Description

Mobile communication terminal equipped with a camera for image capturing and image capturing method using the same {Mobile phone with camera and method for photographing image using it}

1 is an external perspective view of a mobile communication terminal equipped with a camera for imaging according to the present invention.

2 is a diagram illustrating an internal configuration of a mobile communication terminal equipped with an image capturing camera according to the present invention.

3A to 3C are LCD screens showing menu items selected by a user according to the present invention.

4 is a flowchart illustrating an image capturing process of a mobile communication terminal using an image capturing camera according to the present invention.

Explanation of symbols on the main parts of the drawings

100: mobile communication terminal 110: camera

120: keypad 130: display unit

140: memory 150: microphone

160: A / D converter 170: control unit

180: radio frequency processing unit 190: speaker

The present invention relates to a mobile communication terminal having an image capturing camera and an image capturing method using the same.

More specifically, the present invention relates to a mobile communication terminal for capturing an image of a camera by a sound signal input from the outside through a microphone, and an image capturing method using the same.

Mobile communication terminals are based on the expansion of wireless communication service technology and the rapid increase in the number of subscribers due to the development of wireless communication technology, and various services such as voice call, text / voice message transmission and wireless internet, and games. It provides users with additional services such as ringtones, music, phone number storage and video recording.

Recently, mobile terminals have been equipped with a camera for taking a variety of images and pictures, and users can take pictures of themselves or lovers through a mobile terminal equipped with a camera to set as a wallpaper or to shoot Shared video and photo files by transferring them to a computer or other mobile communication terminal.

Conventionally, when capturing a surrounding image using a mobile communication terminal equipped with a camera as described above, users set the camera to a "shooting mode" through a keypad, and then press a recording button formed at a predetermined position of the mobile communication terminal. Pushing to take an image of the camera or using a self-timer after a predetermined time has elapsed was used to take a photograph automatically.

At this time, when the user pushes the shooting button set on the mobile terminal to take a picture of the camera, the user may not be able to take a picture having a clear image quality when the shutter speed of the camera is set slowly due to camera shake during unconsciousness. There was a problem.

In addition, when the user takes a picture of the camera by using the self-timer, there is a problem that the user can not shoot the image to be taken in real time because the picture is taken after a predetermined time has elapsed.

The present invention has been made to solve the above problems, and to provide a mobile communication terminal for performing the imaging of the camera by the level of the sound signal input from the outside through the microphone.

The present invention provides an image capturing method of a mobile communication terminal for capturing an image of a camera by the level of a sound signal input from the outside through a microphone.

According to an aspect of the present invention, there is provided a mobile communication terminal including a camera for image capturing, comprising: a microphone for converting a sound signal input from the outside into an electrical analog signal and outputting the signal; An A / D converter converting the electrical analog signal input from the microphone into a digital signal; And a controller for comparing the digital signal level input from the A / D converter with a magnitude of a predetermined image capturing reference signal level, and controlling photographing of the camera according to a comparison result.

In addition, the present invention for achieving the above object, the video recording method of the mobile communication terminal having an image pickup camera, the first step of setting the shooting mode according to the user's instructions; A second step of converting a sound signal input from the outside through a microphone into an electrical analog signal and then converting the analog signal into a digital signal; And a third step of performing image capturing of the camera by comparing the magnitude of the digital signal level with a predetermined reference signal level.

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

First, with reference to Figures 1 and 2 will be described in detail the internal configuration and operation process of the mobile communication terminal having a camera for imaging according to the present invention.

1 is a perspective view of a mobile communication terminal according to the present invention, Figure 2 is an internal configuration of a mobile communication terminal according to the present invention.

1 and 2, the mobile communication terminal 100 according to the present invention includes a camera 110 for capturing and capturing a surrounding image, a plurality of numeric keys and function keys, and the image of the camera. A keypad 120 for generating key signals relating to photographing and use of various additional services, a display unit 130 for displaying various character information and image information photographed by the camera, and various characters, image information, and driving programs At the same time, a memory 140 for storing a reference signal level for image capturing used for imaging a camera, a microphone 150 for converting a sound signal input from the outside into an electrical analog signal, and an analog input from a microphone An A / D converter 160 for converting a signal into a digital signal having a predetermined level, a digital signal level output from the A / D converter, and a preset image The reference signal level for imaging is compared with each other, and when the digital signal level is higher than the reference signal level for image capturing, the control unit 170 for controlling image capturing of the camera and the baseband signal transmitted by the controller are converted into a high frequency signal. It is provided with a radio frequency processing unit 180 for transmitting to the outside and converting a high frequency signal received through a base station, etc. into a baseband signal and connected to the control unit, and a speaker 190 for outputting the audio signal transmitted by the control unit to the outside. do.

Here, the camera 110 includes a lens for focusing the surrounding image onto an image pickup device (not shown), and captures the surrounding image according to a driving signal input from the controller 170.

In this case, when an imaging control signal is input from the controller 170, the camera 110 performs a role of capturing a current image and capturing a surrounding image.

When capturing the surrounding image through the camera 110 as described above, when the user inputs a key signal for capturing the camera 110 by using the keypad 120, the controller 170 receives a key signal input through the keypad 120. By setting the camera 110 to the video shooting mode.

Subsequently, when the user inputs a sound signal for image capturing, more specifically, a sound signal such as "shooting" through the microphone 150, the controller 170 may determine that the sound signal level input through the microphone 150 is equal to the sound signal level. When the image signal is higher than the set reference signal level, the control signal for image capture is transmitted to the camera 110 to the camera 110, whereby the camera 110 captures the captured surrounding image.

Here, the sound signal input through the microphone 150 for photographing the camera 110 is preferably a user's voice signal, but is not limited thereto.

The keypad 120 is used for inputting a user command when using various additional service information stored in the memory 140 or wireless communication service information provided through a base station. For example, when a user presses a menu key on the keypad 120, the controller 170 extracts a menu item stored in the memory 140 according to a key signal input through the keypad 120, and displays the menu item on the display 130. Let's do it.

In this case, the user may move a scroll using a moving key set on the keypad 120 to select a specific top menu item among a plurality of top menu items.

Memory 140 is a predetermined menu item provided to the user, that is, a menu item such as a phone book, mobile phone settings, schedule management, convenient functions, fun functions, screen settings, volume ringtones, and sub-menus associated with the menu items Save the item.

In addition, the memory 140 stores various character information provided to the user, image information photographed by the camera 110, and a predetermined driving program driven by the controller 170, and simultaneously captures image of the camera 110. Stores reference signal level information used for data processing.

The microphone 150 converts a sound signal input from the outside, more specifically, a voice signal such as "shooting" input by the user for capturing the camera 110 into an electrical analog signal and outputs it to the A / D converter 160. Play a role of

At this time, the sound signal input to the microphone 150 is not limited to the user's voice signal, it is preferable to understand that all of the onomatopoeia having a predetermined level or more can be used.

The A / D converter 160 is configured to be electrically connected to the microphone 150, and converts the electrical analog signal input from the microphone 150 into a digital signal having a predetermined level, and then converts the converted digital signal. It serves to output to the control unit 170.

The control unit 170 executes a driving program stored in the memory 140 according to a user's instruction input through the keypad 120 to send a text message, take a picture, make a call, an additional service and a phone book, mobile phone setting, schedule management, It executes menu items such as convenient functions, fun functions, screen settings, and volume ringtones.

For example, when the user inputs a menu key signal through the keypad 120, the controller 170 displays various menu items on the display unit 130 as shown in FIG. 3A in association with the input menu key signal. Display.

In this case, when the user moves the scroll to a menu item to be executed by using a moving key formed on the keypad 120 and then selects a menu item on which the scroll is displayed by using a selection key, the controller 170 enters into the memory 140. The stored driving program is driven to execute the selected menu item, or as shown in FIG. 3B, the sub menu item set in the selected menu item is displayed on the display unit 130.

Here, the case where the camera 110 is selected as the lower menu item will be described.

As described above, while the lower menu item is displayed on the display unit 130, the user moves the scrolling menu item to the camera 110 menu item by using the movement key of the keypad 120 and then uses the selection key to display the camera 110. In the case of selecting a menu, the controller 170 displays the final sub-menu item for performing the camera 110 photographing on the display unit 130 as illustrated in FIG. 3C.

In this case, when the user inputs a key signal for selecting the “take picture” menu item, which is a final sub-menu item for capturing the camera 110, through the keypad 120, the controller 170 controls the keypad 120. According to the key signal input through the camera 110 is set to the shooting mode.

As described above, when the digital signal having a predetermined level is input from the A / D converter 160 while the camera 110 is set to the photographing mode, the controller 170 controls the input digital signal level and memory. After comparing the camera imaging reference signals set in step 140 with each other, if the digital signal level input from the A / D converter is greater than the reference signal level, image capturing of the camera 110 is performed.

Hereinafter, an image capturing method of a mobile communication terminal according to the present invention will be described in detail with reference to FIG. 5.

Referring to FIG. 5, when a user inputs a key signal for capturing the camera 110 using the keypad 120, the controller 170 may set the camera 110 to the "shooting mode" so that the surrounding image may be photographed. It is set (S101).

Subsequently, when the user inputs a key signal for zooming in or out of the camera 110 for the surrounding image using the keypad 120 (S102), the controller 170 is input through the keypad 120. The camera 110 is driven according to the control signal to capture the surrounding image selected by the user (S102).

As described above, when a user inputs a sound signal for capturing an image captured by the microphone 150, for example, a voice signal such as “shooting” while the surrounding image is captured by the camera 110. The microphone 150 converts the input sound signal into an electrical analog signal, and then transfers the electrical analog signal to the A / D converter 160 electrically connected to the microphone (S105).

Thereafter, the A / D converter 160 performs an analog-to-digital conversion on the electrical analog signal transmitted from the microphone 150 to generate a digital signal having a predetermined level and then has a predetermined level. The digital signal is transmitted to the controller 170 (S106).

At this time, the controller 170 periodically detects the digital signal level input from the A / D converter 160, and determines whether the magnitude of the input digital signal level is greater than a preset reference signal level for image capturing. It is determined (S107).

If the digital signal level input from the A / D converter 160 is smaller than the reference signal level as a result of the determination in step S108, the controller 170 controls the image signal to the camera 110 which is set to the shooting mode. Without transmitting the camera 110, the camera 110 does not perform the recording of the captured surrounding image (S108).

However, when the digital signal level input from the A / D converter 160 is greater than the reference signal level as a result of the determination in step S108, the controller 170 may capture an image of the camera 110 which is set to the shooting mode. The control signal is transmitted, whereby the camera 110 photographs the currently captured surrounding image (S109).

Although the technical spirit of the present invention has been described in detail according to the above-described preferred embodiment, it should be noted that the above-described embodiment is for the purpose of description and not of limitation. In addition, those skilled in the art will understand that various embodiments are possible within the scope of the technical idea of the present invention.

As described above, the present invention detects the sound signal level input through the microphone to perform image capturing of the camera, thereby preventing the shaking caused by the shaking of the user during the camera capturing, thereby capturing a clear image. Provide effect.

Claims (7)

In the mobile communication terminal having a camera for image shooting, A microphone for converting and outputting a sound signal input from the outside into an electrical analog signal; An A / D converter converting the electrical analog signal input from the microphone into a digital signal; And A control unit for comparing the digital signal level input from the A / D converter with a magnitude of a reference signal level for image capturing, and controlling photographing of the camera according to a comparison result Mobile communication terminal, characterized in that configured to include. The method of claim 1, The sound signal input from the outside through the microphone is a user's voice signal. The method of claim 1, And the control unit periodically detects a digital signal level input from the A / D converter. The method of claim 1, And when the digital signal level is greater than the reference signal level, the controller performs image capturing by the camera. In the video recording method of a mobile communication terminal having a video camera, A first step of setting a shooting mode according to a user's instruction; A second step of converting a sound signal input from the outside through a microphone into an electrical analog signal and then converting the analog signal into a digital signal; And A third step of performing image capture of the camera by comparing the digital signal level with a magnitude of a predetermined reference signal level; Image capturing method of a mobile communication terminal comprising a. The method of claim 5, wherein the third step, Step 3-1 of periodically sensing the digital signal level; Step 3-2 of comparing the sensed digital signal level with the reference signal level; A third step of performing image capturing by the camera when the digital signal level is greater than the reference signal level; And If the digital signal level is smaller than the reference signal level, performing image capture by the camera in step 3-4 Image capturing method of a mobile communication terminal comprising a. The method of claim 5, And a sound signal input from the outside through the microphone is a voice signal of a user.

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