KR20060068349A - Method for displaying broadcasting information of video display system - Google Patents

Abstract

The present invention is to display the broadcast information using the PIP, POP function, for this purpose, the present invention is different from the conventional method of mainly displaying the broadcast information of the broadcast reproduced on the main screen in the video playback system having the PIP, POP function On the other hand, in a video playback system having a PIP and POP function, if there is a key input for displaying broadcast information of a broadcast being played on a sub-screen while displaying two broadcasts through the PIP and POP function, it is determined whether there is caption data among the broadcast information. If there is caption data, the caption data of the subscreen is displayed on the main screen, and if there is no caption data, the program information among the broadcasting information is displayed on the main screen. User convenience by displaying broadcast information of the broadcast being played on the main screen Is gaining increased.

Description

Broadcast information display method of video playback system {METHOD FOR DISPLAYING BROADCASTING INFORMATION OF VIDEO DISPLAY SYSTEM}

1 is a block diagram of an image reproducing system suitable for displaying broadcast information of a broadcast reproduced on a sub-screen on a main screen using a PIP and POP function according to an embodiment of the present invention;

2 is a flowchart illustrating a process of displaying broadcast information of a broadcast reproduced on a sub-screen on a main screen using a PIP and POP function in a video reproducing system according to an embodiment of the present invention;

3 is a diagram illustrating displaying broadcast information of a broadcast reproduced on a sub screen on a main screen according to an embodiment of the present invention;

<Description of the symbols for the main parts of the drawings>

102: key input block 104: control block

106: first tuning block 108: second tuning block

110: first decoding block 112: second decoding block

114: signal processing block

The present invention relates to a method of displaying broadcast information by using a PIP and POP function, and more particularly, to an image reproducing system suitable for displaying broadcast information of a broadcast reproduced on a sub-screen in an image reproducing system having a PIP and POP function. The present invention relates to a broadcast information display method.

As is well known, in a video reproducing system that tunes a broadcast channel using a single tuner, since only the video and audio signals of the tuned channel are reproduced, it is necessary to select a desired channel to watch a broadcast program through cumbersome channel manipulation. In order to solve this problem, an image reproducing system for reproducing a broadcast program using a plurality of tuners has been proposed.

In a video reproducing system having a plurality of tuners, a plurality of tuners are simultaneously tuned to a plurality of broadcast channels, and a broadcast according to any broadcast channel among a plurality of broadcast channels simultaneously tuned using the PIP and POP functions is displayed on the main screen. In addition to playback on the screen, the screen size for broadcasts according to different broadcast channels may be reduced and adjusted to simultaneously play back as sub-pictures on the main screen.

Meanwhile, a method of displaying broadcast information (eg, caption data, program information, etc.) of a broadcast reproduced in a video reproducing system having a plurality of tuners mainly displays broadcast information of a broadcast reproduced on a main screen. Since the broadcast information of the broadcast reproduced on the screen is not displayed in the case of program information, or in the case of caption data, it is inconvenient to recognize the broadcast information of the broadcast reproduced on the subscreen because it is displayed according to the size of the subscreen.

Accordingly, the present invention is to solve the above problems of the prior art, the broadcast information of the video playback system that can display the broadcast information of the broadcast reproduced on the sub-screen on the main screen in the video playback system having a PIP, POP function The purpose is to provide a display method.

In order to achieve the above object, the present invention provides a method for displaying broadcast information in a video reproducing system having a PIP and POP function, the method comprising: checking whether there is a key input for displaying broadcast information of a broadcast being played on a sub-screen; If there is a key input for displaying the broadcast information, checking whether there is caption data among the broadcast information of the sub-screen; if there is the caption data, displaying the caption data on the main screen; If not present, the present invention provides a method for displaying broadcast information in a video reproducing system comprising displaying program information of the broadcast information on the main screen.

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings by those skilled in the art.

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

The core technical aspect of the present invention is different from the conventional method of mainly displaying broadcast information of a broadcast played on a main screen in a video reproducing system having a PIP and POP function, and a PIP and POP in a video reproducing system having a PIP and POP function. If there is a key input to display the broadcast information of the broadcast being played on the sub-screen while displaying two broadcasts, it checks whether there is caption data among the broadcast information, and if there is caption data, the caption of the sub-screen on the main screen. By displaying the data and displaying the program information in the broadcast information on the main screen when there is no caption data, it is easy to achieve the object of the present invention through such technical means.

1 is a block diagram of a video reproducing system suitable for displaying broadcast information of a broadcast reproduced on a sub-screen on a main screen using the PIP and POP functions according to the present invention, and includes a key input block 102 and a control block 104. ), A first tuning block 106, a second tuning block 108, a first decoding block 110, a second decoding block 112, and a signal processing block 114.

Referring to FIG. 1, the key input block 102 generates an operation signal for controlling the operation of an image reproducing system, including an input means, for example, a remote controller, and the like. When a key for performing the PIP and POP functions of the video reproducing system is input, PIP and POP operation signals are generated and provided to the control block 104, and broadcast information (for example, caption) is reproduced on the sub-screen. When a key for displaying data, program information, etc.) is input, a function of providing a broadcast information display operation signal to the control block 104 is performed accordingly.                     

In addition, the control block 104 performs a general operation control of the image reproducing system including, for example, a microprocessor, and controls to tune the broadcast channel according to an operation signal provided from the key input block 102. Provide a signal to the first tuning block 106 and the second tuning block 108, and a control signal for decoding the broadcast signal of the tuned channel to the first decoding block 110 and the second decoding block 112. The signal processing block 114 provides a control signal for processing the decoded signal and reproducing it through a monitor and a speaker (not shown).

In addition, the control block 104 in response to the PIP, POP operation signal and the channel selection operation signal generated when the user inputs a key for performing the PIP and POP functions using an input unit (not shown), for example, a remote controller or the like. A control signal for tuning the broadcast channel to be reproduced on the sub-picture is provided to the second tuning block 108, and a control signal for decoding the broadcast signal of the tuned channel is provided to the second decoding block 112. The video signal of the screen and the video signal of the sub-screen having the reduced-adjusted screen size are mixed to provide a control signal to the signal processing block 114 for display on a monitor (not shown).

In addition, the control block 104 is built in accordance with an operation signal generated when a user inputs a key for displaying broadcast information (eg, caption data, program information, etc.) of a sub-screen using an input unit (not shown). To detect the broadcast information stored in the stored storage medium (e.g., memory, etc.) and transmit it to the signal processing block 114, and display it on the main screen (e.g., the lower part, the upper part, etc. of the main screen). The control signal displayed by mixing with the video signal is provided to the signal processing block 114.

Meanwhile, the control block 104 provides the signal processing block 114 with a control signal for generating and displaying a specific menu screen displaying the caption data of the sub picture broadcast when there is.

Next, the first tuning block 106 and the second tuning block 108 receive a tuning control signal from the control block 104 to tune any one of a plurality of broadcast channels received through an antenna, It recovers the transport stream through a process of converting the tuned broadcast signals to intermediate frequencies, demodulation, and error correction.

In addition, the first decoding block 110 and the second decoding block 112 may convert the broadcast signal of the broadcast program and additional information (eg, caption data, program information, etc.) inserted on the transport stream from the restored transport stream. After separation, the compression-coded broadcast signal (broadcast program signal) of a specific channel is restored to the original signal before encoding by decoding techniques such as variable length decoding, inverse DCT, inverse quantization, motion compensation, and the like. And the additional information is passed to the control block 104 for storage in the embedded storage medium.

In addition, the signal processing block 114 displays a video signal of the reconstructed broadcast signal through a monitor (not shown) and outputs an audio signal through a speaker not shown, wherein the PIP, which is provided from the control block 104, The video signal among the broadcast signals transmitted from the second decoding block 112 according to the POP control signal is reduced to a sub-screen video signal having a reduced screen size, mixed with the video signal of the main screen, and displayed on a monitor not shown. do.

In addition, the signal processing block 114 displays the broadcast information (for example, caption data, program information, etc.) transmitted from the control block 104 in accordance with a control signal for displaying broadcast information of the broadcast reproduced on the sub-screen. The video signal of the broadcast reproduced on the screen and the main screen (for example, the top, bottom, left, right, etc. of the main screen) are mixed to be displayed, and then mixed with the video signal of the broadcast reproduced on the sub-screen. Display via.

In addition, the signal processing block 114 mixes a menu screen displaying the presence or absence of caption data of the sub picture broadcast with the video signal of the main picture broadcast according to the control signal provided from the control block 104, and displays a monitor (not shown). Display through.

Meanwhile, in the above-described embodiment of the present invention, the broadcast of the broadcast channel tuned through the first tuning block 106 is displayed on the main screen, and the broadcast of the broadcast channel tuned through the second tuning block 108 is displayed on the subscreen. Although described as being displayed, the broadcast of the broadcast channel tuned through the second tuning block 106 may be displayed on the main screen, and the broadcast of the broadcast channel tuned through the first tuning block 108 may be displayed on the sub-screen. Of course.

Next, a process of performing the PIP and POP functions through the main screen and the sub-screen in the video reproducing system having the above-described configuration, and displaying the broadcast information of the broadcast reproduced on the sub-screen according to the selection on the main screen. Explain.

2 is a flowchart illustrating a process of displaying broadcast information of a broadcast reproduced on a sub-screen on a main screen using a PIP and POP function in a video reproducing system according to an embodiment of the present invention.

Referring to FIG. 2, while receiving and reproducing a broadcast of a specific broadcast channel in a video reproducing system having a PIP and POP function (step 202), the control block 104 uses a user's input means (not shown) to control the PIP, When a key for performing the POP function is inputted, it is checked whether there is an operation signal generated from the key input block 102 (step 204).

As a result of the check in the step 204, if there is an operation signal for performing the PIP and POP functions, the control block 104 provides a control signal, and accordingly, by using the input means through the second tuning block 108 After tuning the selected broadcast channel and performing a decoding process on the second decoding block 112, the signal processing block 114 reduces the video signal among the reconstructed broadcast signals transmitted from the second decoding block 112. After the signal processing is performed on the sub-screen of the adjusted screen size, it is mixed with the video signal displayed on the main screen and displayed on a monitor (not shown) (step 206).

During the playback by performing the PIP and POP functions, the control block 104 checks whether there is an operation signal generated from the key input block 102 when the user inputs a key for displaying broadcast information (step 208). .

As a result of the check in step 208, if there is an operation signal for displaying broadcast information, it is checked whether it is broadcast information of the broadcast reproduced on the sub-screen (step 210. Here, the user may include input means not shown); For example, it can be selected using a remote controller or the like.                     

As a result of the check in step 210, if the broadcast information of the broadcast reproduced on the sub-screen, if there is caption data among the broadcast information of the broadcast reproduced on the sub-screen, it is checked whether there is an operation signal generated according to a key input to display it. (Step 212). Here, a specific menu screen indicating the presence or absence of caption data of the broadcast reproduced on the sub-screen can be displayed on the main screen (for example, top, bottom, left, right, etc.).

As a result of the check in step 212, if there is an operation signal for displaying caption data, the control block 104 displays the caption data of the broadcast reproduced on the sub-screen stored in the built-in storage medium and the control signal for displaying the same. And the caption data of the broadcast reproduced on the sub-screen is mixed with the video signal displayed on the main screen at the top, bottom, left and right of the main screen. After mixing with the video signal displayed on the sub-screen is displayed on the monitor not shown (step 214).

On the other hand, if there is an operation signal generated according to a key input for displaying program information instead of the caption data display as a result of the check in step 212, the control block 104 displays a sub-screen stored in the built-in storage medium. Program information of a broadcast to be reproduced on a control signal and a control signal for displaying the same are provided to the signal processing block 114. Accordingly, the signal processing block 114 displays program information of a broadcast reproduced on a sub-screen at the top, bottom, After mixing with the video signal displayed on the main screen to be displayed on the left, right, etc., it is mixed with the video signal displayed on the sub-screen and displayed on a monitor not shown (step 216).                     

On the other hand, if the result of the check in step 210 is not the broadcast information of the broadcast reproduced on the sub picture (that is, the broadcast information of the broadcast reproduced on the main picture), the control block 104 displays the main picture. It is checked whether or not the program information is displayed (step 218).

As a result of the check in the step 218, when there is an operation signal that occurs according to a key input for displaying program information of the main screen, the control block 104 displays the program information of the broadcast reproduced on the main screen stored in the built-in storage medium. And a control signal for displaying the same to the signal processing block 1114, whereby the signal processing block 114 displays the program information of the broadcast reproduced on the main screen to be displayed on the top, bottom, left, right, etc. of the main screen. After mixing with the video signal displayed on the screen and mixed with the video signal displayed on the sub-screen is displayed on a monitor not shown (step 220).

For example, FIG. 3 is a diagram illustrating displaying broadcast information of a broadcast reproduced on a sub-screen on a main screen according to an embodiment of the present invention, and the sub-screen (a) is displayed on a lower portion (c) of the main screen (a). b) broadcast information (eg, caption data, program information, etc.) of the broadcast being played back may be displayed. Here, the broadcast information of the broadcast reproduced on the sub-screen can also be displayed on the upper portion (d) of the main screen (a) according to the setting.

Therefore, the caption data and program information of the broadcast played on the sub-screen during the PIP and POP function in the video reproducing system having the PIP and POP functions are reproduced on the main screen at the top, bottom, left and right sides of the main screen. After mixing with the video signal of the mixed with the video signal of the broadcast reproduced on the sub-screen can be displayed at the same time.

As described above, the present invention is different from the conventional method of mainly displaying broadcast information of a broadcast reproduced on a main screen in a video reproducing system having a PIP and POP function, and a PIP and POP in a video reproducing system having a PIP and POP function. If there is a key input to display the broadcast information of the broadcast being played on the sub-screen while displaying two broadcasts, it checks whether there is caption data among the broadcast information, and if there is caption data, the caption of the sub-screen on the main screen. By displaying the data and displaying the program information among the broadcasting information on the main screen when there is no caption data, the broadcasting information of the broadcast played on the sub-screen is displayed on the main screen in the video playback system having the PIP and POP functions. Convenience can be enhanced.

Claims (3)

A method of displaying broadcast information in a video playback system having a PIP and POP function, Checking whether there is a key input for displaying broadcast information of the broadcast being played on the sub-screen; Checking whether there is caption data among the broadcast information of the sub-screen when there is a key input to display the broadcast information; Displaying caption data of the sub-screen broadcast on a main screen when the caption data exists; Displaying program information of the sub-screen broadcast on the main screen when there is no caption data. Broadcast information display method of a video playback system comprising a. The method of claim 1, The method may further include displaying a specific menu screen for displaying the presence or absence of caption data of the sub-screen broadcast on the main screen. The method according to claim 1 or 2, The caption data and the program information of the sub-screen broadcast is displayed on any one of the top, bottom, left, right of the main screen, the broadcast information display method of the video playback system.

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