KR20070010598A - Method capturing image on playing of broadcasting data in digital multimedia terminal - Google Patents

Abstract

A method of capturing an image while a DMB(Digital Multimedia Broadcasting) terminal reproduces broadcasting data is provided to easily capture an image which a user wants while broadcasting data is reproduced by a DMB terminal, and store the captured image. A broadcasting service mode is executed to receive broadcasting data, and the received broadcasting data is parsed and output as video data and audio data(310). When a user inputs a recording request key while the broadcasting service mode is executed(320), video data and audio data from the instant of time when the recording request key is inputted are stored(330). When an image capture key is inputted while the video data and the audio data are stored(340), a still image obtained by capturing an image corresponding to the video data is stored(350).

Description

Screen capture method while playing broadcast data on digital multimedia terminal {METHOD CAPTURING IMAGE ON PLAYING OF BROADCASTING DATA IN DIGITAL MULTIMEDIA TERMINAL}

1 is an internal block diagram of a digital multimedia broadcasting terminal providing a screen capture function according to an embodiment of the present invention;

2 is a view showing a configuration example of a key input unit according to an embodiment of the present invention;

3 is a control flowchart for capturing a screen during recording according to an embodiment of the present invention;

4 is a control flow diagram for capturing a screen during playback of recorded broadcast data according to another embodiment of the present invention.

The present invention relates to a digital multimedia broadcasting terminal, and more particularly, to a screen capturing method in a digital multimedia terminal that allows a user to conveniently capture and store a desired screen while playing broadcast data.

In general, digital broadcasting refers to a broadcasting service that provides a user with high quality, high sound quality, and higher service in place of a conventional analog broadcasting. Recently, with the development of digital broadcasting technology and mobile communication technology, interest in digital broadcasting service for allowing digital broadcasting to be watched on the go has increased. In particular, interest in digital multimedia broadcasting (DMB) services using mobile communication terminals is increasing.

Such a terminal capable of digital multimedia broadcasting provides a recording function for recording a broadcast while watching a broadcast. For this purpose, an electronic program guide (EPG) service is generally provided so that a user can easily select a desired broadcast program. Accordingly, the user can record the broadcast for the reserved time by reserving the start time and the end time of the desired broadcast through the information obtained from the EPG service. That is, the user records the broadcast in units of broadcast programs based on the EPG information.

Accordingly, the user can store desired broadcast data as necessary using the terminal. At this time, the method of recording a broadcast in order to store the digital broadcast data desired by the user is almost the same as the recording method in the broadcast using the analog signal in the past. For example, there is a method of storing digital broadcast data by setting a reservation recording in advance, or storing digital broadcast data by a user directly controlling a storage device.

However, in order to store broadcast data in real time while a user is watching a broadcast received in real time, the digital multimedia terminal provides a recording function capable of storing the broadcast only in a video unit, so that the broadcast for any scene desired by the user simultaneously with recording It was inconvenient to store the data.

As described above, in the case of watching a broadcast received in real time, only a recording function that can be stored in a video unit is provided. That is, even if the broadcast data is recorded in real time, there is no method of capturing and storing only a desired scene.

Accordingly, the present invention provides a screen capture method in a digital multimedia terminal that allows a user to conveniently capture and store a desired screen while playing broadcast data.

The present invention also provides a screen capture method in a digital multimedia terminal that enables screen capture even in a state where a recording function or a playback function is being performed.

According to an aspect of the present invention, there is provided a screen capture method of playing broadcast data in a digital multimedia terminal, the method comprising: parsing broadcast data received according to performance of a broadcast service mode and outputting video and audio data; If a recording request key is input from the user during execution, storing the video and audio data from the point of time when the recording request key is input; and capturing a screen on which the image data is output when the screen capture key is input during the recording. And storing the still image.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

The present invention implements a function that allows the user to conveniently capture the desired screen. To this end, in the present invention, when a predetermined key for screen capture is input while performing a recording function for storing broadcast data in real time, a still image of a corresponding time point is stored. Alternatively, even if a predetermined key for screen capture is input while playing the stored broadcast data, the still image at that time point is stored. As such, when the broadcast data is being reproduced in the digital multimedia terminal, screen capture can be performed at any time, so that the user can easily obtain a desired still image.

Components and operations of the digital multimedia broadcasting terminal in which such a function is implemented will be described with reference to FIG. 1. 1 is an internal block diagram of a digital multimedia broadcasting terminal providing a screen capture function according to an embodiment of the present invention.

According to the present invention, the digital multimedia broadcasting terminal may perform a screen capture function. The screen capture function may be performed by storing a still image of the broadcast image displayed on the screen in the memory unit 180. The broadcast video displayed on the screen may be broadcast video data provided from the digital broadcast data transmitter through the digital broadcast data receiver 110 in real time or broadcast video data previously recorded by the user through a recording function.

The screen capture function is performed under the control of the controller 170, and the controller 170 performs the overall control operation of the digital multimedia broadcasting terminal. If a predetermined key for capturing a screen is input from the user while the broadcast is being played, the controller 170 stores a still image capturing a screen at the time when the predetermined key is input. According to the present invention, a predetermined key for screen capture may be implemented by a function key for performing other existing functions, or may be implemented by a key provided separately. Accordingly, when a predetermined key for screen capture is input while the broadcast data is being reproduced, the controller 170 controls the screen capture function to be performed while maintaining the function currently being performed. That is, while recording or reproducing the stored broadcast data, that is, when the broadcast data is being reproduced, the screen capture function may be executed.

Meanwhile, as described above, the controller 170 according to the present invention has described a case in which the screen capture function is performed during recording or playing back the recorded broadcast data. However, this is merely an example. This is not limited to this. That is, it is preferable that the screen capture function can be executed at any time if the broadcast data is being reproduced.

As described above, according to the present invention, the screen capture function can be executed while the broadcast data is being reproduced. The embodiments of the present invention provide two embodiments.

First, the case of performing the screen capture function during recording according to an embodiment of the present invention will be described. The controller 170 controls the video and audio data to be output to the display unit 130 and the speaker as broadcast data received in real time through the multimedia unit 140 is parsed into video and audio data. As such, when the recording mode ON key for performing the recording mode is input while outputting the video and audio data and playing the broadcasting data, storing the broadcasting data as one broadcast file from the time when the recording mode ON key is input. To start. Subsequently, if the screen capture key is input while the broadcast data is being stored, the controller 170 stores a still image at the time of capture key input.

Meanwhile, a case in which the screen capture function is performed while reproducing the recorded broadcast data according to another embodiment of the present invention will be described below. The controller 170 performs playback on the broadcast file stored in the memory unit 180, and when a capture key for screen capture is input, the controller 170 stores a still image at the time of inputting the capture key. As such, when the capture key for screen capture is input while the broadcast data is being reproduced, the controller 170 stores the still image at the time of inputting the capture key in the memory unit 180.

Meanwhile, the digital broadcast data receiver 110 receives digital broadcast data (hereinafter, referred to as broadcast data) through an antenna, demultiplexes a transport packet (hereinafter, referred to as a TS packet), and then decodes the broadcast data through a decoding process. And parse into audio data. In this case, the demultiplexer and the decoder which perform demultiplexing may be implemented in the digital broadcast data receiving unit 110, and operations in the internally implemented components are obvious to those skilled in the art, and thus the detailed description thereof will be omitted. Shall be. On the other hand, the broadcast data received by the digital broadcast data receiving unit 110 is divided into multiplexing to fit the TS packet size so that the transmission unit (not shown) of the external digital broadcasting system loads the image data and the audio data on the transmission channel. In other words, the TS packet is modulated and transmitted as an RF signal.

Subsequently, when the broadcast data is parsed into video and audio data, the parsed video and audio data is transmitted to the multimedia unit 140. The multimedia unit 140 functions as a control unit in the broadcast service mode, and outputs the transmitted video and audio data to the display unit 130 and the audio processor 150.

The display unit 130 receives and displays the display data of the key input data input from the key input unit 160 under the control of the controller 170, or visually knows the state in setting or driving a function required by the user. To help. In addition, the display unit 130 according to the present invention displays an image according to the performance of the broadcast service under the control of the controller 170 and displays the recording state in the recording mode.

The audio processor 150 is connected to the microphone MIC and the speaker SPK, converts the audio signal transmitted from the multimedia unit 140, outputs the audio signal through the speaker SPK, and receives the audio from the microphone MIC. The signal is converted into data and transmitted to the multimedia unit 140.

The key input unit 160 outputs its own key input data according to input of each key provided as a device for interface with a user, and the key input data output from the key input unit 160 is transmitted to the controller 170. It is detected that such key input data becomes key input data according to the key input, and according to the result, the controller 170 performs a corresponding operation. According to the present invention, the key input unit 160 includes a recording mode on key, a recording mode off key, a broadcast key, a screen capture key, and the like.

Referring to FIG. 2 to describe in more detail the configuration of the key input unit 160 according to an embodiment of the present invention. 2 is a diagram illustrating a configuration example of a key input unit according to an exemplary embodiment of the present invention. As shown in FIG. 2, the broadcast key is a key for setting the digital multimedia broadcasting terminal to the broadcast service mode. When the broadcast key is pressed in the standby mode, the controller 170 turns on the key input. Detect with (on) key. In addition, when the broadcast key is pressed while the broadcast service mode is being displayed, the controller 170 detects the key input as the recording mode on key.

Such a broadcast key also has a function as a capture key according to an embodiment of the present invention. For example, when a broadcast key is briefly pressed in a recording mode, the control unit 170 detects the key input as a capture key for screen capture. do. In addition, even if the broadcast key is briefly pressed while playing the recorded broadcast, the controller 170 detects the key input as a capture key for screen capture.

When the end key or the cancel key is pressed in the recording mode, the controller 170 detects the key input as the recording mode off key. In an embodiment of the present invention, a broadcast service on, a recording mode on, and a capture function are described as an example of implementing a single broadcast key. However, the keys may be independently implemented.

The memory 180 stores information related to overall functions of the digital multimedia broadcasting receiving terminal and at the same time, information related to providing a broadcast service. In addition, the memory 180 stores the image and audio data transmitted through the multimedia unit 140 under the control of the controller 170, and stores the still image captured by the screen according to an embodiment of the present invention.

The wireless unit 190 transmits / receives an RF signal with the base station through the antenna ANT under the control of the controller 170.

Hereinafter, to describe the above in more detail with reference to FIG. 3 which is a control flowchart for capturing a screen during recording according to an embodiment of the present invention.

Referring to FIG. 3, if there is a request for real-time broadcast data reproduction from the user in step 300, for example, when the broadcast key is long pressed, the controller 170 enters the broadcast service mode. Accordingly, if the broadcast data received through the digital broadcast data receiver 110 is parsed into video and audio data, the controller 170 displays the broadcast data parsed according to the broadcast service mode execution, that is, the video and audio data in step 310. 130 and control to be output through the speaker. In the state where the video and audio data are output as described above, the controller 170 determines whether a recording mode on key for recording broadcast data is input in step 320. For example, it is determined whether the broadcast key is long pressed while the video and audio data are output.

If the recording mode on key is input as a result of the determination, the controller 170 proceeds to step 330 and starts storing the video and audio data from the recording mode on key input time point as one broadcast file. In operation 340, the controller 170 determines whether a capture key for capturing a screen is input in step 340. When the capture key is input as a result of the determination, the controller 170 proceeds to step 350 and stores the still image corresponding to the capture key input time, that is, the still image data capturing the currently displayed screen. At this time, even if a screen is captured, the broadcast video is continuously displayed on the screen.

Then, the controller 170 proceeds to step 360 to determine whether a recording mode off key such as a cancel key or an end key is input. As a result of the determination, unless the recording mode off key is input, the control unit 170 returns to step 330 to continuously store the corresponding video and audio data, and proceeds to step 370 only when the recording mode off key is input. To exit the recording mode. In operation 380, the controller 170 ends the broadcast service mode when the broadcast data reproduction end request is input, that is, when the end key is input again while the broadcast image is continuously displayed. As described above, according to the exemplary embodiment of the present invention, the capture key for screen capture is assigned to one specific key, so that the still image may be stored when the capture key is pressed while the broadcast data is being reproduced.

On the other hand, according to another embodiment of the present invention will be described with reference to Figure 4 which is a control flow diagram for capturing the screen during the playback of the recorded broadcast data.

Referring to FIG. 4, if there is a request for reproducing the broadcast data recorded in step 400, the controller 170 proceeds to step 410 to load the broadcast file stored in the memory unit 180 and loads the loaded broadcast file. Image and audio data constituting the control unit are output through the display unit 130 and the speaker. In operation 420, the controller 170 determines whether a capture key for screen capture is input in step 420. That is, it is determined whether the broadcast key is shortly pressed. If the capture key is input, the controller 170 proceeds to step 430 to capture a screen at the time of capture key input and stores still image data. Then, the controller 170 continuously outputs the video and audio data stored as the broadcast file capacity until the broadcast data reproduction end request is received in step 440. In this case, it is preferable to implement such that the image and audio data are continuously output even after the capture key is pressed and the screen is captured.

As described above, according to the present invention, when a user presses a capture key by assigning a capture function to a predetermined key, a screen capture can be performed at any time while broadcasting data is being played on the digital multimedia terminal, thereby allowing the user to obtain a desired still image. Make it easy to get.

Claims (6)

In the screen capture method while playing broadcast data in a digital multimedia terminal, Parsing the received broadcast data according to the performance of the broadcast service mode and outputting the video and audio data; Storing a video and audio data from a time point at which the recording request key is input when a recording request key is input from a user when the broadcasting service mode is performed; And storing a still image capturing a screen outputting the image data when a screen capture key is input during the storing. The method of claim 1, And if any one of a cancel key or an end key is input during the recording, ending the storing of the video and audio data. The method of claim 1, wherein the recording request key and the capture key A method characterized in that it can be implemented by a single function key for performing a predetermined function. The method of claim 3, wherein the recording request key And pressing the function key long when the broadcast service mode is executed. The method of claim 3, wherein the capture key When the recording mode is executed, the function key is a key to save a still image by capturing a screen by a short press. The method of claim 1, Determining whether there is a request to play the stored video and audio data according to the recording request; Outputting the stored video and audio data in response to the playback request; And storing a still image capturing a screen on which the image data is output when a screen capture key is input during the playback.

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