KR100557545B1 - Digital Broadcasting Receiver and Method for displaying of broadcasting signal - Google Patents

Abstract

The present invention relates to a method of receiving a standard external input broadcast signal in a zoom view mode in a wide digital broadcast receiver. When an external input broadcast signal is received, it is determined whether the received broadcast signal is a standard level, If the result of the determination is that the broadcast signal is standard, it is determined whether the corresponding mode is the zoom viewing mode. If the determination result is the zoom viewing mode, the data signal corresponds to the aspect ratio format of the wide digital broadcasting receiver. By reducing and displaying the video signal together, it is not necessary to produce two types of content, wide type and standard type, resulting in cost reduction and contributing to the expansion of digital data broadcasting.

Digital broadcast receiver. Wide, Standard

Description

Digital Broadcasting Receiver and Method for displaying of broadcasting signal             

1 is a diagram showing a broadcast signal displayed according to a mode when a conventional broadcast program being received is a standard class and the output of the digital broadcast receiver is wide;

FIG. 2 is a diagram illustrating a broadcast signal displayed in the zoom view mode shown in FIG.

FIG. 3 is a diagram illustrating a broadcast signal displayed in zoom view mode on a wide screen when a broadcast program being received is a standard class and the output of the digital broadcast receiver is wide according to an embodiment of the present invention. FIG.

4 is a block diagram showing a digital broadcast receiver according to an embodiment of the present invention.

5 is a diagram illustrating a method of mapping a standard plane to a wide plane according to an embodiment of the present invention.

6 is a flowchart illustrating a method of displaying a standard-class data signal in a zoom view mode in a wide type digital broadcasting receiver according to an exemplary embodiment of the present invention.

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

400: IR receiver 410: controller

420 tuner 430 demultiplexer

440: decoder 442: audio decoder

444: video decoder 446: data decoder

450: audio processor 460: graphics processor

470: graphics scaler 480: display processing unit

The present invention relates to a method of displaying a broadcast signal in a digital broadcast receiver for reducing and displaying a data signal corresponding to the wide aspect ratio format when viewing a standard broadcast signal in a wide view mode in a wide digital broadcast receiver.

Recently, the demand for wide televisions processing input signals of 480P or more is increasing. This is because a 16: 9 aspect ratio of programs (external input broadcast signals) to be broadcasted is expected to become mainstream.

In general, since a standard TV having a 4: 3 (or 480I (Interlace)) effective picture is widely used, a video signal format of more than 480P or a high definition (HD) level video signal such as 720P or 1080I is input from the outside. If it is determined that a wide format is input, the image signal input from the outside is varied and displayed to fit the TV screen size.

Hereinafter, a broadcast signal displayed when the external input broadcast signal is a standard class and the output of the digital broadcast receiver is wide will be described.

1 is a diagram illustrating a broadcast signal displayed according to a mode when a conventional broadcast program being received is a standard class and the output of a digital broadcast receiver is wide; FIG. 2 is a broadcast displayed in the zoom view mode shown in FIG. A diagram showing a signal.

Referring to FIG. 1, when the external input broadcast signal is standard and the standard viewing mode is selected by the wide digital broadcast receiver, the standard broadcast signal 100 is displayed as 110.

In addition, when the external input broadcast signal 100 is standard, and the zoom viewing mode is selected by the wide type digital broadcast receiver, the standard broadcast signal 100 is displayed as 120. That is, when the zoom view mode is selected as described above, the vertical video signal in the vertical direction is displayed in a cut state.

In addition, when the external input broadcast signal 100 is a standard class, and the wide viewing mode is selected by the wide digital broadcast receiver, it is displayed as 130. That is, the video signal is enlarged in the horizontal direction and displayed to correspond to the aspect ratio format of the wide type digital broadcast receiver.

A case in which the zoom view mode is selected in the wide digital broadcasting receiver will be described in more detail with reference to FIG. 2.

When the user selects the zoom view mode while the standard broadcast signal is received by the wide type digital broadcast receiver, the vertical video signal in the vertical direction is cut to a part, and the data signal is also cut together. For example, when the data included in the standard broadcast signal is 'Choi Hee-sup', when the broadcast signal is viewed in the zoom view mode on the wide digital TV, only the content 'hee-seop line' is displayed.

As described above, when the external input broadcast signal is a standard class and the mode of the wide digital broadcast receiver is the zoom view mode, the data signal is cut along with the video signal.

Accordingly, an object of the present invention is to reduce the data signal so as to correspond to the aspect ratio format of the wide digital broadcast receiver even when the zoom viewing mode is selected for the external input standard broadcast signal in the wide digital broadcast receiver. To provide a broadcast signal display method in a digital broadcast receiver that can be viewed by the user.

According to an aspect of the present invention to achieve the above object, in a wide type digital broadcast receiver in a method for receiving a standard-level external input broadcast signal in a zoom view mode, when the external input broadcast signal is received, the received broadcast It is determined whether the signal is a standard level, and if the result of the determination is that the broadcast signal is a standard level, it is determined whether the corresponding mode is a zoom viewing mode. Provided are a method for displaying a broadcast signal in a digital broadcast receiver, which is reduced to correspond to the aspect ratio format of the wide digital broadcast receiver and displayed together with the video signal.

If the broadcast signal is not standard, the broadcast signal is decoded and displayed as it is.

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

FIG. 3 is a diagram illustrating a broadcast signal displayed in a zoom view mode on a wide screen when a broadcast program being received is a standard class and the output of the digital broadcast receiver is wide according to an exemplary embodiment of the present invention.

Referring to FIG. 3, when a wide digital broadcasting receiver receives a wide broadcast signal in a zoom viewing mode, a video signal is enlarged to a zoom viewing mode centered on a center to display only a portion of the video signal, and the data signal is displayed in the wide digital. It is displayed in a reduced state corresponding to the aspect ratio format of the broadcast receiver.

For example, when the data included in the standard broadcast signal is 'Choi Hee-sup', when the broadcast signal is viewed in the zoom view mode in the wide digital broadcast receiver, the data signal corresponds to the aspect ratio format of the wide digital broadcast receiver. The player is displayed as it is.

Thus, the user can see well without damaging the contents of the data signal.

As described above, a digital broadcast receiver for viewing a data signal without damaging its contents will be described with reference to FIG. 4.

4 is a block diagram illustrating a digital broadcast receiver according to an exemplary embodiment of the present invention, and FIG. 5 is a diagram illustrating a method of mapping a standard plane to a wide plane according to an exemplary embodiment of the present invention.

Referring to FIG. 4, the digital broadcast receiver includes an IR receiver 400, a controller 410, a tuner 420, a demultiplexer 430, a decoder 440, an audio processor 450, a graphics processor 460, The graphics scaler 470 and the display processor 480 are included.

The IR receiver 400 receives the remote control code selected by the user and transmits it to the controller 410.

The controller 410 analyzes a remote control code transmitted from the IR receiver 400 and transmits remote control code analysis information to a corresponding device.

The tuner 420 tunes a broadcast signal of a channel currently viewed under the control of the controller 410.

The demultiplexer 430 parses various information such as audio, video, and other data multiplexed on the broadcast signal supplied from the tuner 420.

The decoder 440 decodes audio and video signals and data signals obtained by parsing by the demultiplexer 430 and processes the audio and video signals so that a user can view them. The audio decoder 442 and the video decoder 444 ), And a data decoder 446.

The audio decoder 442 decodes the compressed audio signal and transmits it to the audio processor 450. The audio processor 450 converts the signal transmitted from the audio decoder 442 into an analog signal and amplifies the speaker. Output through

The video decoder 444 decodes the compressed video signal and transmits the decoded video signal to the display processor 480.

The data decoder 446 decodes the compressed data signal and transmits the decoded data signal to the graphic processor 460.

The graphic processor 460 graphically displays data transmitted from the data decoder 446.

The graphic scaler 470 adjusts the size of the graphic transmitted from the graphic processor 460 to correspond to the aspect ratio format.

For example, if the broadcast program being received is of a standard type and is a wide type output of a digital broadcast receiver, when the user selects the zoom view mode, the graphic scaler 470 converts the corresponding data signal into the wide type. Reduce to match the screen size of the digital broadcast receiver.

The display processor 480 receives a video signal transmitted from the video decoder 444 and a graphic transmitted from the graphic scaler 470 and simultaneously displays the graphic on the screen.

Hereinafter, an operation of the digital broadcast receiver configured as described above will be described.

In the wide digital broadcast receiver, the tuner 420 receives a standard-grade broadcast signal from the outside through an antenna according to a command of the controller 410.

The tuner 420 transmits the broadcast signal to the decoder 440. The decoder 440 divides the broadcast signal into a video signal, an audio signal, and a data signal to decode the broadcast signal.

That is, the audio signal is decoded by the audio decoder 442 and transmitted to the audio processor 450. The audio processor 450 converts the decoded voice signal into an analog signal, amplifies it, and outputs the same through a speaker.

The video signal is decoded by the video decoder 444 and transmitted to the display processor 480.

The data signal is decoded by the data decoder 446 and converted into graphics by the graphic processor 460. The data signal converted into the graphic is converted into a size corresponding to the aspect ratio format of the digital broadcast receiver by the graphic scaler 470 and transmitted to the display processor 480.

Here, the graphic scaler 470 maps the unit pixels of the standard plane to the wide plane as shown in FIG. 5. That is, the graphic scaler 470 basically processes 4: 3 plane unit pixels in a 16: 9 plane. Since 4: 3 is equal to 16:12, the graphic scaler 470 adjusts the vertical ratio since the horizontal scale is set to 16.

For example, if the y-axis coordinate of a specific pixel of the 4: 3 plane is a, and the y-axis coordinate of the 16: 9 plane to be mapped is b, the graphic scaler is the y-axis coordinate of the 4: 3 plane as shown in Equation 1. Map.

The display processor 480 receives a video signal transmitted from the video decoder 444 and a graphic transmitted from the graphic scaler 470 and simultaneously displays the graphic on the screen.

6 is a flowchart illustrating a method of displaying a standard-class data signal in a zoom view mode in a wide type digital broadcasting receiver according to an exemplary embodiment of the present invention.

Referring to FIG. 6, when an external input broadcast signal is received (S600), the wide type digital broadcast receiver determines whether the received broadcast signal is a standard class (SD class) (S602).

If the received broadcast signal is the standard class, the wide type digital broadcast receiver determines whether the corresponding mode is the zoom view mode (S604). That is, the wide type digital broadcast receiver determines whether the zoom view mode is selected by the user.

In operation 604, if the corresponding mode is the zoom view mode, the wide type digital broadcasting receiver reduces the data signal to correspond to the aspect ratio format (S606). That is, when the corresponding mode is the zoom view mode, the wide digital broadcast receiver enlarges and displays a predetermined portion of the center of the video signal, and reduces and displays the data signal corresponding to the aspect ratio of the wide digital broadcast receiver. . By adjusting the size of the data signal as described above, the data signal is not cut off.

After performing step 606, the wide digital broadcast receiver displays the reduced data signal together with the video signal (S608). Here, the video signal is a video signal decoded by a decoder.

If it is determined in step 602 that the received broadcast signal is not standard, the wide type digital broadcast receiver decodes the broadcast signal and displays it as it is (S610).

The present invention is not limited to the above embodiments, and many variations are possible by those skilled in the art within the spirit of the present invention.

As described above, according to the present invention, it is possible to provide a broadcast signal display method in a digital broadcast receiver in which a user having a wide screen digital TV recorder or a receiver can watch standard data broadcast without difficulty.

In addition, according to the present invention, since it is not necessary to produce two versions of the content of the wide type and the standard type, it is possible to provide a broadcast signal display method in a digital broadcast receiver that can contribute to cost reduction and contribute to the expansion of digital data broadcasting.

Claims (2)

In the method of receiving a standard external input broadcast signal in a zoom view mode in a wide digital broadcast receiver, If an external input broadcast signal is received, determining whether the received broadcast signal is a standard class; Determining whether a zoom view mode is selected by a user if the broadcast signal is a standard class; If the corresponding mode is the zoom view mode, the zoom view mode is enlarged around the center of the video signal, and the ratio of the vertical direction is reduced to correspond to the aspect ratio format of the wide digital broadcast receiver with respect to the data signal. Displaying with the video signal Broadcast signal display method in a digital broadcast receiver comprising a. The method of claim 1, If the broadcast signal is not a standard class, the broadcast signal display method in the digital broadcast receiver, characterized in that for decoding and displaying the broadcast signal.

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