KR100598025B1 - Broadcast receiver and method of displaying/selecting broadcast program - Google Patents

Abstract

A broadcast receiving device and a broadcast program display / selection method are provided. The broadcast receiving apparatus includes a receiver for receiving broadcast signals of a first broadcast channel and a second broadcast channel dependent on the first broadcast channel, and signal processing the broadcast signals of the first and second broadcast channels, thereby processing the first and second broadcast signals. A signal processor for generating a broadcast screen, a display unit for displaying the first and second broadcast screens as one screen, and a controller for controlling the signal processor to generate a screen size larger than that of the second broadcast screen. It includes. As a result, since the major channel is displayed on the main screen and the minor channel is displayed on the sub screen, the user can watch the major channels with a heavy weight, and can feel the contents of the minor channels. In addition, since any broadcast program can be selected using the displayed screen, more convenience in channel selection is provided.

Channel, Broadcast Program, Main Screen, Sub Screen

Description

Broadcast receiver and method of displaying / selecting broadcast program

1 is a block diagram of a broadcast receiving apparatus according to an embodiment of the present invention;

2 is a flowchart provided to explain a method for displaying / selecting a broadcast program of a broadcast receiving apparatus according to an embodiment of the present invention;

3A to 3E are views provided for describing a method in which broadcast programs of major / minor channels are divided and displayed on one screen;

4A to 4E are diagrams for explaining a process of selecting one of broadcast programs of the displayed major / minor channel.

Explanation of symbols on the main parts of the drawings

110: receiver 120: broadcast signal separator

130: audio signal processor 140: video signal processor

160: display unit 170: input unit

190: control unit

The present invention relates to a broadcast receiving apparatus and a broadcast program display / selection method. More particularly, the present invention relates to a broadcast receiving apparatus that divides and displays a plurality of broadcast programs on one screen and selects one of the displayed broadcast programs. And a method for displaying / selecting a broadcast program.

Digital broadcasting, unlike analog broadcasting, can carry an audio signal, a video signal, and additional information in one broadcasting signal, thereby providing excellent data transmission efficiency, better image quality than analog broadcasting, and bidirectional service.

In addition, four standard definition (SD) broadcast programs can be transmitted in one frequency band of analog broadcast. Accordingly, the concept of major channel number and minor channel number has been introduced for channel assignment.

The major channel number means a channel number allocated to each frequency band used for terrestrial broadcasting, and the minor channel number means a channel number allocated within the same frequency band as the major channel.

There are various ways to select and watch a broadcast program of a minor channel, which will be described below.

First, there is a method of directly inputting a minor channel number through a remote controller. For example, in the case of watching the minor channel 'CH 11-3' of the major channel 'CH 11', the operation buttons '1' → '1' → '-' → '3' You just type in.

However, this method has a problem that it is possible only if the user knows the minor channel number in advance.

Secondly, if a major channel number is inputted, there is a method of displaying a list of minor channel numbers dependent on the selected major channel on a TV screen and allowing a user to select one.

However, in this case, since the user can see only the channel number of the minor channel, the user cannot confirm the contents of the broadcast program broadcast on the minor channel. To check this, it is possible to select and watch the minor channel number, and the contents of the broadcast program cannot be known before the selection.

The present invention has been made to solve the above problems, and an object of the present invention is to divide and display broadcast programs of major and minor channels in different sizes on one screen, and to use any one of the displayed screens. A broadcast receiving device providing a user interface for selecting a broadcast program and a method of displaying / selecting a broadcast program.

In accordance with an aspect of the present invention, a broadcast receiving apparatus includes: a receiver configured to receive a broadcast signal of a first broadcast channel and a second broadcast channel dependent on the first broadcast channel; A signal processor configured to process the broadcast signals of the first and second broadcast channels to generate first and second broadcast screens; A display unit displaying the first and second broadcast screens on one screen; And a controller configured to control the signal processor to generate a screen size of the first broadcast screen to be larger than the screen size of the second broadcast screen.

The first broadcast channel may be a major channel, and the second broadcast channel may be a minor channel dependent on the major channel.

In addition, when there are a plurality of minor channels dependent on the major channel, the signal processor may signal-process the broadcast signals of the plurality of minor channels, respectively, to generate a plurality of second broadcast screens.

The signal processor may signal-process the first broadcast screen to be a video and the second broadcast screen to be a still image.

The display apparatus may further include an input unit configured to select one of the first and second broadcast screens, and the controller may further include one of the screen sizes selected by the input unit from the first and second broadcast screens. Preferably, the signal processor controls the signal processor to be larger than any other screen size.

The signal processor may signal-process one of the first and second broadcast screens to generate one of a moving image and one of the first and second broadcast screens.

The signal processor may perform signal processing such that any one selected from the first and second broadcast screens is generated on a full screen.

On the other hand, according to the present invention, a method for displaying / selecting a broadcast program comprises: a) receiving a broadcast signal of a first broadcast channel and a second broadcast channel dependent on the first broadcast channel; b) signal processing the broadcast signal of the second broadcast channel to generate a second broadcast screen; c) signal processing the broadcast signal of the first broadcast channel to generate a first broadcast screen having a larger screen size than the second broadcast screen; And d) displaying the first and second broadcast screens as one screen.

The first broadcast channel may be a major channel, and the second broadcast channel may be a minor channel dependent on the major channel.

In addition, when there are a plurality of minor channels dependent on the major channel, the step b) preferably processes the broadcast signals of the plurality of minor channels to generate a plurality of second broadcast screens.

The first broadcast screen may be a video and the second broadcast screen may be generated as a still image.

In addition, the program display / selection method, e) selecting any one of the first and the second broadcast screen; And f) signal processing such that the screen size of any one selected from the first and second broadcast screens is larger than the other screen size.

In the step f), one of the first and second broadcast screens may be signal-processed such that one selected from the first and second broadcast pictures is a video.

In operation f), signal processing may be performed such that any one selected from the first and second broadcast screens is displayed in full screen.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

1 is a block diagram of a broadcast receiving apparatus according to an embodiment of the present invention. Referring to FIG. 1, the broadcast receiving apparatus includes a receiver 110, a broadcast signal separator 120, an audio / video signal processor 130/140, an audio output unit 150, a display unit 160, and an input unit 170. ), A memory 180, and a controller 190.

The receiver 110 includes an antenna 111, a tuner 113, and a demodulator 115.

The tuner 113 selects a broadcast channel selected by the user through the input unit 170 among a plurality of broadcast signals flowing through the antenna 111, and the demodulator 115 receives the broadcast signal output from the tuner 113. Demodulate

The broadcast signal separator 120 separates the broadcast signal demodulated by the receiver 110 into an audio signal, a video signal, and a broadcast information signal, respectively, and the audio signal is an audio signal processor 130, and the video signal is a video signal processor. At 140, broadcast information signals are output to the controller 190, respectively.

The audio signal processor 130 receives the audio signal output from the broadcast signal separator 120 and processes the audio signal to enable playback. The audio signal processor 130 performing such a function includes an audio decoder 131, an audio memory 133, and an audio digital-to-analog converter (DAC) 135.

The audio decoder 131 extends the compressed audio signal applied from the broadcast signal separator 120 and stores the compressed audio signal in the audio memory 133.

The audio DAC 135 converts the extended audio signal stored in the audio memory 133 into an analog audio signal and outputs the analog audio signal to the audio output unit 150.

The audio memory 133 is a buffer in which an output signal of the audio decoder 131 is stored.

The video signal processor 140 receives a video signal output from the broadcast signal separator 120 to process and reproduce the video signal, and combines OSD (On Screen Display) information with the displayed screen. The video signal processing unit 140 that performs such a function includes a video decoder 141, a video memory 143, an NTSC / PAL encoder 145, and an OSD unit 147.

The video decoder 141 expands the compressed video signal received from the broadcast signal separator 120 and stores the compressed video signal in the video memory 143.

The NTSC / PAL encoder 145 converts the video signal stored in the video memory 143 into an NTSC or PAL video signal and displays it on the display unit 160.

The OSD unit 147 displays information such as broadcast information, date, time, volume, and the like on the screen for the user to refer to. That is, the OSD unit 147 records symbols, letters, numbers, and the like for displaying the above information in a specific area of the video memory 143 so that the generated characters and the like are displayed at a specific position of the screen.

The video memory 143 is a buffer in which an output signal of the video decoder 141 and an output signal of the OSD unit 147 are stored.

In the audio output unit 150, an analog audio signal output from the audio signal processor 130 is reproduced, and is generally implemented as a speaker.

The display 160 displays a video signal output from the video signal processor 140.

The input unit 170 is a device that receives a user's operation command and transmits it to the control unit 190, and is generally provided at the front of the broadcast receiving device. In addition, the input unit 170 may be implemented as a light receiving unit that receives the remote control for inputting a user's operation command and the output signal of the remote control to transmit to the control unit 190.

The input unit 170 displays a channel selection button 170a for selecting a broadcast channel to be watched, a direction selection button 170b for moving the cursor displayed on the screen, and a screen on which the cursor is located as a main screen. A main screen button 170c for instructing to be displayed, and a full screen button 170d for instructing the screen on which the cursor is positioned to be displayed as a full screen are provided.

The memory 180 stores a driving program required to operate the broadcast receiving apparatus, and in addition, a broadcast information signal output from the broadcast signal separator 120 may be stored.

The controller 190 controls the receiver 110, the audio signal processor 130, and the video signal processor 140 to operate the broadcast receiver according to a user's operation command input through the input unit 170.

The controller 190 stores the broadcast information signal output from the broadcast signal separator 120 in the memory 180 and determines whether there is a minor channel dependent on a channel (major channel) selected by the user.

Meanwhile, the broadcast receiving apparatus may configure a screen displayed on the display unit 160 by dividing the screen into a main screen and a sub screen, where the main screen means that the screen size is larger among the divided screens. It is also possible to have two or more subscreens (a first subscreen, a second subscreen, ...).

To this end, the controller 190 controls the storage area of the video memory 143 to be displayed on the main screen (hereinafter, referred to as a 'main screen storage area') and sub-screens (first screen) according to the screen division method. The video signal is divided into storage areas (hereinafter, 'first sub-screen storage area' and 'second sub-screen storage area', ...) to be displayed on the sub-screen, the second sub-screen, ...), and the video The video signal decoded by the decoder 141 is controlled to be stored in a corresponding storage area.

Hereinafter, a method of displaying the broadcast programs received by the broadcast receiving apparatus described above and selecting a specific broadcast program through the displayed screen will be described with reference to FIG. 2. 2 is a flowchart provided to explain a method for displaying / selecting a broadcast program of a broadcast receiving apparatus according to an embodiment of the present invention.

First, the user selects a major channel to watch using the 'channel selection' button 170a (S310). At this time, the user can directly input the major channel number using the number buttons ('0' to '9' buttons) provided in the 'channel selection' button 170a, and 'channel up' / 'channel down' ( Major channels can be selected by moving broadcast channels in sequential / reverse order using the 'Ch-up' / 'Ch-down') button.

The controller 190 determines whether there is a minor channel dependent on the selected major channel in step S310 (S320).

In more detail, in step S320, the controller 190 controls the receiver 110 to receive the broadcast signal of the selected major channel, and receives the broadcast information signal separated from the broadcast signal of the major channel from the broadcast signal separator 120. By referring to the information on the minor channel included in the broadcast information signal, it is determined whether there is a minor channel.

In addition, the controller 190 may determine whether a minor channel exists by referring to information about a major channel pre-stored in the memory 180 and a minor channel subordinate thereto.

When it is determined in step S320 that the minor channel exists, the broadcast signals of the minor channels are scanned to obtain still images of the received broadcast programs (S330).

In detail, in operation S330, when the controller 190 controls the receiver 110 to scan broadcast signals of minor channels, the video decoder 141 sequentially outputs video of the minor channels output from the broadcast signal separator 120. Signal is applied. The video decoder 141 decodes a video signal corresponding to one frame of a broadcast program among the applied video signals, and then decodes the video signal corresponding to a 'first sub-screen storage area' and a 'second sub screen' of the video memory 143. Screen storage area ', ... respectively. Accordingly, the still image of the broadcast program broadcast in each minor channel is stored in the video memory 143.

When the scan of the minor channel is completed, the broadcast signal of the major channel is received, decoded and stored (S340).

In detail, in operation S340, when the receiver 110 receives a broadcast signal of a major channel and applies it to the broadcast signal separator 120 under the control of the controller 190, the separated audio / video signal is an audio / video decoder, respectively. Decoded at 131/141, and stored in audio / video memory 133/143, respectively. In this case, the decoded video signal is stored in the 'main screen storage area' of the video memory 143.

Subsequently, the broadcast program of the major channel is the main screen, and the broadcast programs of the minor channel are composed of sub-screens and displayed on the display unit 160 (S350).

A main channel broadcast signal is stored in the 'main screen storage area' of the video memory 143, and a broadcast signal of a first minor channel is stored in the 'first sub screen storage area' of the video memory 143, and a 'second screen' is displayed. Since the broadcast signal of the second minor channel is stored in the 'sub picture storage area', when the NTSC / PAL encoder 145 displays the video signal stored in the video memory 143 on the display unit 160, The split screen as described above is displayed.

FIG. 3A illustrates a case in which a major channel 'CH 11' is present in a first minor channel 'CH 11-1', a second minor channel 'CH 11-2', and a third minor channel 'CH 11-3' Assuming that the program of the major channel (CH 11) is displayed on the main screen 200, the first to third minor channels (CH 11-1) on the first to third sub-screens (210, 220, 230) , CH 11-2, and CH 11-3) show broadcast programs.

As shown, the screen size of the main screen 200 in which the broadcast programs of the major channel CH 11 are displayed is displayed on the first channel in which the broadcast programs of the minor channels CH 11-1, CH 11-2 and CH 11-3 are displayed. It is larger than the screen sizes of the first to third subscreens 210, 220, and 230.

Accordingly, while the user heavily views the broadcast program of the major channel CH 11, the user is provided with the broadcast programs of the minor channels CH 11-1, CH 11-2, and CH 11-3 as a still picture. The contents of the broadcast program broadcast on the minor channels CH 11-1, CH 11-2, and CH 11-3 can be intuitive.

The audio DAC 135 reproduces the audio signal stored in the audio memory 133 to the audio output unit 150. Since the audio signal of the major channel CH 11 is stored in the audio memory 133, the audio signal is reproduced. The output unit 150 reproduces the audio signal of the major channel CH 11.

Meanwhile, the broadcasting programs of the major channels CH 11 and the minor channels CH 11-1, CH 11-2, and CH 11-3 may be divided and displayed on one screen, and the user may divide them. It is also possible to choose the method.

As an example, it is also possible to divide the screen in the manner shown in Figs. 3B and 3C. In FIG. 3B, unlike FIG. 3A, the first to third sub screens 210, 220, and 230 are configured to be positioned on the left side of the main screen 200. In FIG. 3C, the major channel CH is distinguished without distinguishing between the main screen and the sub screen. 11) and the screen sizes of the broadcast programs of the minor channels (CH 11-1, CH 11-2, CH 11-3) are equally divided.

In addition, when the number of minor channels dependent on the major channel CH 11 is two (CH 11-1 and CH 11-2), a screen may be configured as shown in FIG. 3D. If the number is one (CH 11-1), it is also possible to configure the screen as shown in Fig. 3e.

Referring back to FIG. 2, the user selects a screen on which a desired broadcast program is displayed using the displayed screen (S360).

When the user selects a screen, as illustrated in FIG. 4A, the cursor 250 displayed by the OSD unit 147 may be moved by using the 'direction selection' button 170b. In addition, as shown in FIG. 4B, the highlight 260 displayed in the channel information may be implemented to be moved.

Thereafter, when the user inputs the 'main screen' button 170c (S370), the controller 190 determines which screen is selected in step S360 (S380).

If it is determined in step S380 that the selected screen is one of the sub-screens, the broadcast program displayed on the selected sub-screen is moved to the main screen and displayed (S390).

In this case, the controller 190 controls the receiver 110 to receive a broadcast signal of a broadcast channel providing a broadcast program of the selected screen, and the audio / video signal processor 130 receives the audio / video signal of the broadcast channel. Because it is authorized.

FIG. 4C illustrates a screen displayed when the cursor 250 or the highlight 260 is positioned on the second sub screen 220 and the 'main screen' button 170c is input. As shown, the broadcast program of the second minor channel (CH 11-2) displayed on the second sub-screen 220 is moved to the main screen 200 and displayed as a video, and was displayed on the main screen 200 The broadcast program of the major channel CH 11 is moved to the first sub screen 210 and displayed as a still image. The broadcast program of the first minor channel CH 11-1 displayed on the first sub screen 210 is moved to the second sub screen 220.

Meanwhile, if it is determined in step S380 that the selected screen is the main screen, the broadcast program displayed on the main screen, which is the selected screen, is displayed in full screen (S420).

4D illustrates a screen displayed when the cursor 250 or the highlight 260 is positioned on the main screen 200 and the 'main screen' button 170c is input. As shown, the broadcast program of the major channel (CH 11) that was displayed on the main screen 200 is displayed in full screen.

On the other hand, when the user selects the screen in step S360, and enters the "full screen" button (170d) (S410), the broadcast program displayed on the selected screen is displayed in full screen (S420).

FIG. 4E illustrates a screen displayed when the cursor 250 or the highlight 260 is positioned on the second sub screen 220 and the 'full screen' button 170d is input. As shown, the broadcast program of the second minor channel CH 11-2 displayed on the second sub-screen 220 is displayed in full screen.

On the other hand, if it is determined in step S320 that the minor channel does not exist, only the broadcast program of the major channel is displayed in full screen (S400).

In the present embodiment, the broadcast programs displayed on the sub-screens are implemented to be displayed as still images, but this is only an example. Therefore, it is also possible to implement a plurality of receiving unit 110 so that the broadcast program displayed on the sub screen is also displayed as a video.

As described above, according to the present invention, since the broadcast program of the major channel is displayed as a video on the main screen having a large screen size, and the broadcast program of the minor channel is displayed as a still image on a sub screen of a small screen size, While watching a major program program with a heavy weight, the content of the broadcast program broadcast in the minor channels can be intuitive. In addition, since any broadcast program can be selected using the displayed screen, more convenience in channel selection is provided.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

Claims (14)

A receiver which receives a broadcast signal of a first broadcast channel and a second broadcast channel dependent on the first broadcast channel; A signal processor configured to process the broadcast signals of the first and second broadcast channels to generate first and second broadcast screens; A display unit displaying the first and second broadcast screens; And Control the first and second broadcast screens to be displayed as one screen on the display unit, and control the signal processor to generate a screen size of the first broadcast screen larger than the screen size of the second broadcast screen. And a control unit. The method of claim 1, And wherein the first broadcast channel is a major channel, and the second broadcast channel is a minor channel dependent on the major channel. The method of claim 2, When there are a plurality of minor channels subordinate to the major channel, And the signal processor generates a plurality of second broadcast screens by signal processing the broadcast signals of the plurality of minor channels, respectively. The method of claim 1, The signal processing unit, And the first broadcast screen is a video and the second broadcast screen is a still image. The method of claim 1, And an input unit for selecting any one of the first and second broadcast screens. And the controller controls the signal processor to generate one of the screen sizes selected through the input unit among the first and second broadcast screens to be larger than any other screen size. The method of claim 5, The signal processing unit, Any one selected from the first and the second broadcast screen is a video signal processing, characterized in that the other signal processing to generate a still image. The method of claim 5, The signal processing unit, And processing a signal such that any one selected from the first and second broadcast screens is generated on a full screen. a) receiving broadcast signals of a first broadcast channel and a second broadcast channel subordinate to the first broadcast channel; b) signal processing the broadcast signal of the second broadcast channel to generate a second broadcast screen; c) processing the broadcast signal of the first broadcast channel to generate a first broadcast screen having a larger screen size than the second broadcast screen; And d) displaying the first and second broadcast screens as one screen; and displaying / selecting a broadcast program. The method of claim 8, And the first broadcast channel is a major channel, and the second broadcast channel is a minor channel dependent on the major channel. The method of claim 9, When there are a plurality of minor channels subordinate to the major channel, B), wherein each of the broadcast signals of the plurality of minor channels is signal-processed to generate a plurality of second broadcast screens. The method of claim 8, And processing the signal so that the first broadcast screen is a video and the second broadcast screen is a still image. The method of claim 8, e) selecting one of the first and second broadcast screens; And and f) processing the signal so that the screen size of any one selected from the first and second broadcast screens is larger than any other screen size of the other broadcast screens. The method of claim 12, F) step, Any one selected from the first and the second broadcast screen is a signal processing so that the other is displayed as a video, the other is a still image. The method of claim 12, F) step, And processing a signal such that any one selected from the first and second broadcast screens is displayed on a full screen.

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