KR100697423B1 - Television Receiver for Displaying a Moving POP Screen - Google Patents

Abstract

The present invention provides a television receiver capable of outputting a dynamic image on a plurality of sub-screens displayed on one side of a normal screen, receiving and tuning a composite video signal of a plurality of airwave channels, and a plurality of DMB channels. Tuning means for receiving and tuning a composite video signal of a; Control means for controlling the tuning of the tuning means, controlling the output of the video signal tuned by the tuning means, and controlling the number of screens output to the display means; Decoding means for decoding video signals of at least one terrestrial DMB channel tuned by the tuning means, according to the control of the control means; And outputting a dynamic video signal of an airwave channel output from the tuning means to the display means in a forward view, and outputting the dynamic video signal of the at least one terrestrial DMB channel decoded by the decoding means to the display means. And video processing means for outputting the sub-screen.

TV, Full Screen, Subscreen, Terrestrial, Dynamic

Description

TV receiver for outputting dynamic sub-screens {Television Receiver for Displaying a Moving POP Screen}

1 is a block diagram of a television receiver for outputting a dynamic sub-screen according to an embodiment of the present invention.

2 is an exemplary screen for explaining an output operation of a television receiver according to the present invention.

Explanation of symbols on the main parts of the drawings

100: TV receiver 110: Tuner unit

120: display unit 130: speaker

140: control unit 180: video processing unit

150, 160, 170: first to third DMB decoder

190: audio processing unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television receiver, and more particularly, to a television receiver capable of outputting dynamic images on a plurality of sub-screens displayed on one side of a normal screen.

In the rapid development of information and communication, to the multimedia field that combines various forms of information such as video and audio, as well as the rapid development of technology such as electricity, electronics, computer and communication, these days, also called digital revolution And presence forms are becoming digital from analog. Due to the development of MPEG (Moving Picture Experts Group) technology, which is a compression standard for moving image data to compress digital image data that requires a relatively large amount of data, the size of digital image data is gradually getting smaller. Increasingly, digital video and audio services have been applied to almost all fields such as communication and telecommunications, and digital devices for providing such services have emerged.

Among them, broadcasting and TV occupy an important place as an easy and effective information transmission medium in daily life, and thanks to the digital technology described above, video data and audio data are compressed and transmitted by MPEG technology, thereby adding a large amount of information. With the advent of digital TV, which can provide fast and reliable, more broadcasts can be easily enjoyed at home with clearer picture quality and more vivid sound.

Therefore, the capacity can be increased by 4 ~ 8 times compared to the existing analog method, so that it can provide services in various fields such as sports, movies, home shopping, and music, and also includes broadcasting, cable broadcasting, video on demand (VOD, Video On), etc. As more and more video services are provided, such as demand, viewers can select and watch according to their own preferences, and viewers have a wider choice, and as a variety of broadcasts are provided, viewers can watch TV while watching TV. Select to watch the desired broadcast.

In this way, various broadcasts of various channels are provided, and accordingly, various functions are added to TVs to provide convenience to various tastes of viewers. On-screen display (OSD: On-), which displays information on the TV screen when providing information or changing the TV's settings and functions, i.e., changing the input settings, display settings, audio settings, etc. Screen Display) method is used.

In recent years, with the development of broadcast communication technology, a technology that enables a TV receiver to simultaneously output a plurality of screens, for example, one main screen and three sub-screens, has been used.

However, such a conventional TV receiver outputs a dynamic image only on one of the three sub-screens displayed on one side of the main screen and outputs a still image on the other two sub-screens. The two sub-screens resulted in discomfort rather than helping viewers watch television.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a television receiver capable of outputting dynamic images on a plurality of sub-screens displayed on one side of a normal screen.

Another object of the present invention is to provide a television receiver capable of giving various viewing effects to viewers by simultaneously outputting dynamic images on multiple sub-screens.

In order to achieve the above object, the present invention provides a television receiver for receiving a composite video signal of a plurality of airwave channels and a terrestrial DMB channel and outputting the composite video signal to a display means. Tuning means for receiving and tuning a composite video signal of a plurality of DMB channels; Control means for controlling the tuning of the tuning means, controlling the output of the video signal tuned by the tuning means, and controlling the number of screens output to the display means; Decoding means for decoding video signals of at least one terrestrial DMB channel tuned by said tuning means, under control of said control means; And outputting a dynamic video signal of an airwave channel output from the tuning means to the display unit in a forward view under the control of the control means, and outputting the dynamic video signal of at least one terrestrial DMB channel decoded by the decoding means. And video processing means for outputting the sub-screen to the display means.

The present invention having such a configuration is to output the video signals of the three terrestrial DMB channels as three dynamic sub-screens by using a relatively small number of pixels of the terrestrial DMB video signal compared to the video signals of the air channel. . In general, since a dynamic video signal has a larger number of pixels when a dynamic video signal is output than a still video signal, a dynamic video signal cannot be normally output when the maximum number of output pixels of a television receiver is exceeded. Since the number of pixels is relatively small, even when three terrestrial DMB dynamic video signals are outputted as sub-pictures, the maximum number of output pixels of the television receiver is not exceeded. Accordingly, the present invention outputs a dynamic video signal of one airwave channel to a normal picture and outputs a dynamic video signal for terrestrial DMB to three sub-screens displayed on one side of the normal picture.

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

1 is a block diagram of a television receiver for outputting a dynamic sub-screen according to an embodiment of the present invention.

Referring to FIG. 1, the television receiver 100 of the present invention includes a tuner unit 110 for receiving an analog composite video signal transmitted to a broadcasting station and converting the analog composite video signal into a digital signal, and a display unit for outputting a video signal ( 120, a speaker 130 for outputting a sound signal, and according to a user's instruction, controls the output of the video signal among the composite video signal received through the tuner unit 110, and outputs to the display unit 120 The controller 140 controls the number of screens to be displayed and controls the output of sound signals among the composite image signals received through the tuner unit 110, and receives the tuner 110 under the control of the controller 140. The first to third DMB decoders 150, 160, 170 for decoding the digital video broadcasting signal (DMB) and the tuner unit 110 under the control of the controller 140. The video signal received through the display unit 120 Converted to a signal system and outputs to the display unit 120, and converts the DMB video signal decoded by the first to third DMB decoders (150, 160, 170) into a signal system suitable for the display unit 120 and displayed The audio signal is converted into a signal suitable for the speaker 130 among the composite image signal received through the tuner 110 under the control of the video processing unit 180 and the controller 140 output to the unit 120. And an audio processor 190 output to the 130.

The tuner unit 110 may be implemented differently according to the reception method of the television receiver 100. For example, if the television receiver 100 is an analog system, the tuner unit 110 converts the radio frequency signal transmitted from the broadcasting station into an analog signal and outputs the analog signal. If the television receiver 100 is a digital system, the tuner unit 110 is used. ) Converts the radio frequency signal transmitted from the broadcasting station into a digital signal and outputs the digital signal. In this case, when the tuner 110 is implemented to output an analog signal, an A / D changer for converting the analog signal into a digital signal must be additionally provided between the tuner 110 and the video processor 180. something to do.

The tuner unit 110 receives a composite video signal transmitted through a plurality of channels, and receives a composite video signal for terrestrial DMB through at least two channels among the plurality of channels. The tuner 110 outputs a composite video signal of a channel indicated by the controller 140, and the video signal included in the composite video signal is the video processor 180 or the first to third DMB decoders 150, 160, and 170. ), But outputs the video signal of the general airwave channel directly to the video processing unit 180, and outputs the video signal of the terrestrial DMB channel to the first to third DMB decoders (150, 160, 170), The sound signal included in the image signal is output to the audio processor 190.

Although the display unit 120 outputs a video signal of one channel transmitted through the video processor 180, a plurality of screens, for example, one main screen and one side of the main screen, are controlled by the controller 140. It is also possible to output three subscreens displayed on the screen. That is, the dynamic video signal received through one over-the-air channel is output to the right screen, and the dynamic video signal received through the three DMB channels is output to three sub-screens.

The speaker 130 converts an electric signal output by the audio processor 190 into a sound signal and outputs the sound signal to the outside, and outputs it to the main screen when one main screen and three subscreens of the display unit 120 are output. Outputs the sound signal of the channel.

The controller 140 controls the selection of a broadcast channel and the number of output screens according to a user's instruction input through function selection buttons (not shown) attached to the television receiver 100 or a remote controller (not shown). Looking in more detail as follows.

When a user selects one channel among a plurality of over-the-air channels through the remote control and instructs broadcasting, the controller 140 receives a composite video signal of a channel selected by the user among the over-the-air channels received through the tuner unit 110. The tuner unit 110 is controlled to output. In this case, the tuner unit 110 outputs a composite video signal of an airwave channel to which the control unit 140 instructs output, and outputs a video signal included in the composite video signal to the video processor 180 and the sound signal is an audio processor ( 190) Subsequently, the video processor 180 outputs the image signal output from the tuner 110 to the display 120, and the audio processor 190 outputs the sound signal output from the tuner 110 to the speaker 130. Output through

When the video signal of one over-the-air channel is being output to the display unit 120 as described above, when the user instructs to display the video signal of three channels among the terrestrial DMB channels using the remote controller as a sub-screen, The controller 140 controls the tuner 110 to output an image signal of the DMB channel selected by the user among the DMB channels received through the tuner 110. In this case, the tuner unit 110 outputs the video signals of the three DMB channels for which the control unit 140 indicates output to the first to third DMB decoders 150, 160, and 170, respectively. In this case, the first to third DMB decoders 150, 160, and 170 decode the video signals of the input DMB channels under the control of the controller 140, and output the decoded video signals to the video processor 180.

Subsequently, the video processor 180 outputs three dynamic image signals output from the first to third DMB decoders 150, 160, and 170 to the display unit 120, and as shown in FIG. The video signal is output to the full screen, and the dynamic video signals of three DMB channels are output to the sub-screen. In this case, the controller 140 controls the video processor 180 to designate a position to output three sub-screens and to output dynamic video signals of the sub-screens at the specified position. Accordingly, the video processor 180 sequentially outputs three sub-screens at a position designated by the controller 140.

The first to third DMB decoders 150, 160 and 170 perform decoding under the control of the controller 140, and decode the video signal of the DMB channel so that the video signal of the DMB channel may be displayed as a sub-screen on the display 120. Output to the video processor 180.

Of course, when the video signal of any one of the plurality of DMB channel video signal is output to the normal picture, the first to third DMB decoders 150, 160, 170 are DMB under the control of the controller 140 The video signal of the channel is decoded so as to be displayed on the display unit 120 on a regular screen and output to the video processor 180.

As described above, in the present invention, the dynamic video signals of the three DMB channels can be simultaneously output to the sub picture because the number of pixels of the video signals received through the terrestrial DMB channel is small.

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 provides a variety of viewing effects to viewers by outputting dynamic images on a plurality of sub-screens displayed on one side of the normal screen, thereby increasing the merchandise of the product.

Claims (4)

In a television receiver for receiving a composite video signal of a plurality of terrestrial DMB channels and airwave channels and outputs them to a speaker and a display means, Tuning means for receiving and tuning a composite video signal of a plurality of DMB channels and an airwave channel; Control means for controlling the tuning of the tuning means, controlling the output of the video signal tuned by the tuning means, and controlling the number of screens output to the display means; Decoding means for decoding video signals of at least one terrestrial DMB channel tuned by said tuning means, under control of said control means; And According to the control of the control means, the dynamic video signal of the airwave channel output from the tuning means is output to the display means in the right picture, and the dynamic video signal of the at least one terrestrial DMB channel decoded by the decoding means Video processing means for outputting the sub-screen to the display means TV receiver comprising a. The method of claim 1, The tuning means, under the control of the controller, outputs a dynamic video signal of one airwave channel to the video processing means, and outputs a dynamic video signal of a plurality of DMB channels to the decoding means, And said decoding means comprises a plurality of DMB decoders for decoding video signals of a plurality of terrestrial DMB channels tuned by said tuning means, respectively, under the control of said control unit. delete The method according to claim 1 or 2, The control unit outputs a sound signal included in the composite video signal of the airwave channel through the speaker in a state in which one main screen and a plurality of sub-screens are output to the display means.

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