KR100835376B1 - Method and apparatus for recording moving images in mobile telecommunication terminal - Google Patents

Abstract

A moving image taking method of a mobile communication terminal is provided to enable a user to take a moving image as controlling input of video and audio when necessary while taking the moving image, thereby preventing unwanted images or sounds from being included in the moving image. A moving image is taken and stored according to a moving image taking request(S11-S14). An input control command is received while the moving image is taken(S15). The moving image is taken and stored as controlling at least one of video data and audio data of the moving image according to the input control command(S16). A photographing completion request is received while the moving image is taken, and the photographing of the moving image is completed(S17,S18).

Description

Video recording method of mobile communication terminal {Method and apparatus for recording moving images in mobile telecommunication terminal}

1 is a block diagram schematically illustrating an internal configuration diagram of a mobile communication terminal according to an embodiment of the present invention.

2 is a flowchart illustrating a video recording method according to an embodiment of the present invention.

3 is a flowchart illustrating an input control process of FIG. 2 in accordance with an embodiment of the present invention.

4A to 4C are diagrams schematically illustrating a video recording screen according to an embodiment of the present invention.

The present invention relates to a video recording method of a mobile communication terminal, and more particularly, to a video recording method of a mobile communication terminal that can shoot while controlling the input of video and audio, respectively, during video recording.

In recent years, mobile communication terminals have been developed through the rapid development of simple voice calls and short message transmission functions, such as video calls, electronic organizers, voice or video storage functions, Internet functions, entertainment functions, digital broadcasting reception functions, and digital cameras. It is equipped with various functions such as functions.

As a digital camera function is added to a mobile communication terminal, a user can easily capture and store not only a still image but also a video using the mobile communication terminal.

In general, a video is composed of video data and audio data. That is, video data generated through a digital camera and audio data generated through a microphone are combined and stored as video data.

However, the conventional mobile communication terminal has a inconvenience that it is difficult for the user to control the input of video data during video recording. For example, even if the user wants to continue shooting the video using only the audio data except the video data in the process of video recording, the conventional mobile communication terminal does not provide an easy method for this.

As described above, the conventional mobile communication terminal cannot control the input of the video data, and thus it is difficult to selectively include the video data only in a specific section according to the needs of the user.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and controls the input of video data and audio data when capturing a video, respectively, and can record and record a video of a mobile communication terminal. To provide a way to get angry.

In accordance with another aspect of the present invention, a video recording process of capturing and storing a video from a video recording request, and a control command receiving process of receiving an input control command during the video capturing process; A control method of controlling the input of at least one of the video data and the audio data of the video according to the input control command and receiving a recording end request during the video recording; It is characterized by including a shooting end process of ending the shooting.

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

In describing the embodiments, descriptions of technical contents which are well known in the technical field to which the present invention belongs and are not directly related to the present invention will be omitted. In addition, detailed description of components having substantially the same configuration and function will be omitted.

For the same reason, some components in the accompanying drawings are exaggerated, omitted, or schematically illustrated, and the size of each component does not entirely reflect the actual size.

1 is a block diagram schematically illustrating an internal configuration diagram of a mobile communication terminal according to an embodiment of the present invention.

Referring to FIG. 1, the mobile communication terminal 100 according to the present embodiment includes a wireless communication unit 130, an audio processing unit 140, a key input unit 160, a camera unit 180, a display unit 150, and a storage unit. 170, and a controller 190.

The wireless communication unit 130 performs a function of transmitting and receiving corresponding data for wireless communication of the mobile communication terminal 100. The wireless communication unit 130 may include an RF transmitter for upconverting and amplifying a frequency of a transmitted signal, and an RF receiver for low noise amplifying and downconverting a received signal. In addition, the wireless communication unit 130 may receive data through a wireless channel and output the data to the controller 190, and may receive data output from the controller 190 and transmit the data through the wireless channel.

The audio processor 140 may be configured as a coder (Coder / Decoder), and the codec may include a data codec for processing packet data and an audio codec for processing an audio signal such as voice. In addition, the audio processor 140 includes a speaker 142 and a microphone 144. The audio processor 140 converts the digital audio data received by the controller 190 through the wireless communication unit 120 into an analog audio signal through an audio codec and reproduces the audio signal through the speaker 142 during the call, and conversely, the microphone 144. The analog audio signal inputted from the C1 is converted into digital audio data (hereinafter referred to as audio data) through an audio codec and provided to the controller 190.

The key input unit 160 receives a user's operation signal for controlling the mobile communication terminal 100 and transmits it to the controller 190. To this end, the key input unit 160 includes a plurality of character keys (not shown) for inputting numbers and text information and control keys (not shown) for controlling the operation of the mobile communication terminal 100. In addition, the key input unit 160 according to an exemplary embodiment of the present invention includes a photographing request key (not shown) for requesting video photographing and a photographing end key (not shown) for terminating photographing of the video. In addition, the key input unit 160 according to the present embodiment includes an input control key 162 for controlling the input of video and audio when capturing a video. The input control key 162 includes a video stop key, a video input key, an audio stop key, and an audio input key, which will be described later. The input control key 162 may be implemented in various ways such as hardware connection by connecting to various character keys and control keys, but in the embodiment, a soft key implemented in software is used.

The camera module 110 captures an image photographed through a lens of a camera sensor (not shown) and converts the photographed optical signal into an electrical image signal. As the camera sensor, a Charge Coupled Device (CCD) sensor or a Complementary Metal Oxide Semiconductor (CMOS) sensor may be used.

In addition, the camera module 110 includes a signal processor (not shown) for converting an analog image signal photographed from a camera sensor into a digital signal. The signal processor is preferably implemented with a DSP (Digital Signal Processor), but is not limited thereto.

The image processor 120 deforms the video data processed by the digital signal output from the camera module 110 in units of frames to suit the display characteristics and the size of the display unit 150. In addition, the image processor 180 compresses the video data and transmits the compressed video data to the controller 190. To this end, the image processor 180 includes an image codec and performs a function of compressing image data displayed on the display unit 150 in a set manner or restoring the compressed image data to original image data. The image codec may be a JPEG codec, an MPEG codec, a wavelet codec, or the like.

The display unit 150 displays the image data output from the camera module 180 on the screen or displays the image data on the screen using data transmitted from the controller 190. Herein, the liquid crystal display (LCD) may be applied to the display unit 150. In this case, the display unit 150 may include an LCD controller, a memory capable of storing data, and an LCD display device. In this case, when the LCD is implemented using the touch screen method, the screen of the display unit 150 may be operated as an input unit.

The storage unit 170 includes a program memory and data memories. The program memory stores programs for controlling general operations of the mobile communication terminal 100. Data generated during the execution of programs is stored in the data memory. In addition, the moving image data generated by the controller 190 is stored in the data memory.

The controller 190 performs an overall control operation of the mobile communication terminal 100. In addition, the controller 90 according to the present invention generates video data by combining the video data transmitted from the camera module 160 and the audio data output from the audio processor 140.

Next, a video recording method of the mobile communication terminal according to the present invention will be described in detail with reference to the following embodiments. The configuration of the mobile communication terminal described above will also be clearer from the following description of the video recording method.

2 is a flowchart illustrating a video photographing method according to an exemplary embodiment of the present invention, and FIG. 3 is a flowchart illustrating an input control process of FIG. 2 according to an exemplary embodiment of the present invention.

4A to 4C are diagrams schematically illustrating a video recording screen according to an exemplary embodiment of the present invention.

Referring to Figures 1 to 4c as a whole the moving picture recording method according to the present invention will be described. First, a video recording request is received through the user's key manipulation to the mobile communication terminal 100 in the standby state (S11) (S12). In response, the controller 190 switches the mobile communication terminal 100 to the video recording mode. In the video shooting mode, the controller 190 first drives the camera module 110 and the microphone 144 in step S13.

When the camera module 110 is driven, the camera module 110 converts an input image signal into a digital signal and transmits it to the image processor 120. The image processor 120 converts the image signal into video data and then transmits the image signal to the controller 190. In this case, the image processing unit 120 may further include compressing the video data using a video codec (eg, MPEG2, H.264, etc.). However, it is not limited.

In addition, the microphone 144 driven by the controller 190 transmits all sounds input from the outside to the audio processor 140. The audio processor 140 converts the analog signal transmitted from the microphone 144 into audio data, which is digital data, and then transmits the analog signal to the controller 190. As in the case of the video data described above, the process may further include compressing the audio data using an audio codec (eg, WMA, AC3, etc.).

Meanwhile, the camera module 110 transmits the digital signal to the display unit 150 directly or through the image processing unit 120 or the like. The display unit 150 receiving the digital signal displays the video on the screen using the digital signal. Through this, the user can easily identify the image currently input to the camera module 110 with the naked eye.

In operation S14, the controller 190 performs a process of generating video data by using video data and audio data.

The controller 190 generates a video in real time using the video data continuously input from the camera module 110 and the audio data continuously input from the audio processor 140 and stores the video in the storage unit 170. The process of generating and storing such a video continues until a video recording end request, which will be described later, is input. Meanwhile, in describing the present embodiment, a technique for generating a video such as generating audio data and video data, compressing using a codec, and synchronizing audio data and video data is already known. Detailed description thereof will be omitted.

When the video generation process according to the present embodiment starts, soft keys, which are the image control keys 162, are displayed on the lower portion of the display unit 150 as shown in FIG. 4A. When both video data and audio data are input to the controller 190 to generate and store a video, the soft key displays a video pause key 163 and an audio pause key 164. Here, the video stop key 163 and the audio stop key 164 are input control keys 162 for controlling the input of video and audio constituting the video currently generated.

When the user inputs any one of the input control key 162, that is, the video stop key 163 or the audio stop key 164 in step S15, the controller 190 recognizes this and enters step S16.

Referring to FIG. 3, the controller 190 of the mobile communication terminal which enters the process S16 may perform a process in which an input control command is input when a video input stop command is input, that is, when the user inputs a video stop key 163. Receives it. Accordingly, the controller 190 stops input of a video used to generate a video in step S1611. At the same time, driving of the camera module 110 is stopped.

As such, since the input of the video is stopped, the controller 190 continuously generates and stores a video using only the audio data input from the audio processor 140 from step S1622. Here, in the present embodiment, the last frame of the already stored video data is continuously stored as the video data. Therefore, when playing a video generated through this process, the last frame of the video data is continuously displayed on the screen as the still image of the portion where the video input is stopped. However, the present invention is not limited thereto, and various applications are possible, such as displaying a blank screen of a blank instead of the last frame or displaying a phrase designated by a user.

When the input of the video is stopped in the process of generating the video as described above, the video stop key 163 displayed on the screen of the display unit 150 is converted to the video input key 165 as shown in FIG. 4B and displayed. The video input key 163 is a key used to include video data whose input has been interrupted again in the video, which will be described later.

On the other hand, the above-described step S16 is similarly performed when the user inputs the audio stop key 164 in step S15. Referring to FIG. 4C, when the user inputs the audio stop key 164, the controller 190 receives an audio input stop command in step S1630, and stops input of audio data used for generating a video in step S1631. . At the same time, driving of the microphone 144 is stopped. In addition, the controller displays an icon I indicating that audio data is not stored through the display unit. This allows the user to easily recognize that the video is being generated and stored only with the video data.

Subsequently, in step S1632, the controller 190 continuously generates and stores a video using only video data input from the camera module 110. At this time, in the present embodiment, a method of silently processing a portion where audio data is not input is used. Therefore, when playing the video generated through this process, only the image by the video data is displayed in the portion where the audio input is stopped, and no sound is output in the case of sound. However, the present invention is not limited thereto, and various applications are possible, such as inserting a specific sound using a sound file predefined by a user.

Meanwhile, when generation and storage of a video are performed while audio input is stopped, the audio stop key 164 of the soft keys displayed on the screen of the display unit 150 is switched to the audio input key 166 as shown in FIG. 4C. Is displayed. As in the case of the video data described above, it is used to input the audio data from which the input is stopped again into the moving picture.

When the video is started to be generated while the input of the video data or the audio data is stopped through the above-described process S1612 or S1632, the controller 190 reenters the process S15 and checks whether an input control command is again received from the user. .

If the input control command is received again in step S15, the controller 190 enters step S16 again. At this time, if the video input stop command is performed in the previous S16 process, the current input control command includes a video input resume command (video input key) 165 and an audio input stop command (audio stop key) 164 as shown in FIG. 4B. ) Can only be performed. Likewise, if the audio input stop command is performed in the previous step S16, the current input control command is a video input stop command (video stop key) 163 and an audio input resume command (audio input key; 166) as shown in FIG. 4C. Only this can be done.

If the user inputs the video input key 165 in operation S15 (only possible when the video input is stopped), the controller 190 receives a video input resume command in operation S1620. Accordingly, the controller 190 drives the camera module 110 again in step S1621 and includes the video data transmitted from the camera module 110 in the video. Accordingly, after the process of S1622, the video data and the audio data are combined and generated in the video.

Similarly, if the user inputs the audio input key 166 in step S15 (only possible when the audio input is stopped), the controller 190 receives an audio input resume command in step S1640. Accordingly, the controller 190 drives the microphone 144 again in step S1641 and includes the audio data transmitted through the microphone 144 and the audio processor 140 in the video again. Accordingly, after the S1642 process, the video data and the audio data are combined and generated in the video.

The processes S15 to S16 may be repeatedly performed as many times as necessary during the generation and storage of the video, i.e., unless a photographing completion command is input after the video recording is started.

Accordingly, the video recording method according to the present invention may generate a video by inputting or selectively inputting both video data and audio data for each desired section according to a user's needs in the process of capturing a video.

While the video is generated and stored in steps S14 to S16, when the user inputs a shooting end key (not shown) in step S17, the controller 190 receives a shooting end command. In response, the controller 190 ends the generation and storage process of the current video. In this process, the controller 190 stops driving the camera module 110 and the microphone 144 and simultaneously displays a message indicating that the video recording is finished through the display unit 150.

In the video recording method according to the present invention carried out through the above process, the user of the mobile communication terminal can control the video and audio input as needed to shoot. Therefore, unwanted video or sound can be avoided from being included in the video, and the size of the generated video data can be minimized.

On the other hand, the video recording method of the mobile communication terminal according to the present invention is not limited to the embodiment, various modifications are possible by those skilled in the art within the technical idea of the present invention. For example, in the present embodiment, an example in which the video input key and the video pause key are used as one soft key has been described. However, the present invention is not limited thereto, and different keys may be used.

In addition, the present embodiment shows an example of taking an image in the mobile communication terminal. However, in addition to this, any electronic device including a camera module and a microphone may be variously applied. In addition, the various elements and regions in the figures are schematically drawn. Accordingly, the present invention is not limited by the relative size or spacing drawn in the accompanying drawings.

As described above, in the video recording method of the mobile communication terminal according to the present invention, the user of the mobile communication terminal can control the video and audio input as needed during the video recording process. Therefore, unwanted video or sound can be avoided from being included in the video, thereby minimizing the total capacity of the generated video.

Claims (9)

The video shooting process for recording and saving a video from a video recording request, A control command receiving step of receiving an input control command during the video shooting process; An input control process of controlling at least one of video data and audio data of the video according to the input control command and capturing and storing the video; and And a shooting end process of receiving a shooting end request during the video shooting and ending the shooting of the video. The method of claim 1, wherein the control command receiving process or the input control process is repeatedly performed according to the input control command repeatedly input from the outside. The method of claim 2, wherein the input control process And stopping the input of the video data or the audio data according to the input control command, or resuming the interrupted input to perform the recording of the video. The method of claim 2, wherein the input control command, And the video input stop command, the video input resume command, the audio input stop command, and the audio input resume command. The method of claim 4, wherein when the video input stop command is input in the process of receiving the control command, And the input control process is a process of stopping input of the video data and capturing the video by using only the audio data. According to claim 5, If the video input resume command is input in the process of recording and storing the video using only the audio data, And the input control process is a process of resuming input of the video data and capturing the video using the video data and the audio data. The method of claim 5, wherein the capturing and storing the video using only the audio data comprises: And a last frame of the video data input immediately before the video data is input. The video of the mobile communication terminal according to claim 4, wherein if the audio input stop command is input in the process of receiving the control command, the input of the audio data is stopped and the video is photographed using only the video data. How to shoot. The method of claim 8, wherein the audio input resume command is input in the process of capturing and storing the video using only the video data. And the input control process is a process of resuming input of the audio data and capturing the video by using the video data and the audio data.

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