KR20060064818A - Display apparatus and method for displaying broadcast information thereof - Google Patents

Abstract

The present invention relates to a video apparatus capable of displaying broadcast information and a method of displaying broadcast information thereof. The present invention provides a tuner for tuning a broadcast channel, a video decoder for decoding a video signal among broadcast signals input through the tuned broadcast channel, broadcast information and the broadcast information among broadcast signals input through the tuned channel. A control unit for providing the display form information of the display unit to an on-screen display (OSD) processing unit, an on-screen display processing unit for processing the broadcasting information from the control unit to be displayed in a predetermined area under the control of the control unit; And an image processing unit which processes the broadcasting information of the on-screen display processing unit in a caption form to the image signal decoded by the image decoder unit, and a display unit which displays the image signal processed by the image processing unit. To provide. Therefore, according to the present invention, the user can check the broadcast information of the preferred broadcast while watching the broadcast, can accurately match the viewing time of the preferred broadcast channel, and the broadcast information is displayed in subtitle format, which greatly increases the screen view of the current broadcast channel. There is an effect that it becomes possible to display in a range that does not interfere.

Broadcast Information

Description

Display apparatus and method for displaying broadcast information thereof

1 illustrates an EPG screen displayed on a general TV.

FIG. 2 is a diagram illustrating an EPG screen when a specific channel is selected in the EPG screen of FIG. 1.

3 is a block diagram illustrating a video device according to a first embodiment of the present invention.

4 is a block diagram illustrating a video device according to a second embodiment of the present invention.

5 is a block diagram illustrating a video device according to a third embodiment of the present invention.

6 is a flowchart for explaining a method of displaying broadcast information in a video device according to the present invention.

7 is a flowchart for explaining a method of setting a caption function among broadcasting information display methods in a video apparatus according to the present invention.

8 is a diagram illustrating an example of an OSD for explaining a method for setting a broadcast information display time in a video device according to the present invention.

9 is a diagram illustrating an example of an OSD for explaining a method for setting a broadcast channel for displaying broadcast information in a video device according to the present invention.

10 is a view showing an example of an OSD for explaining a method for setting a genre for performing broadcast information display in a video device according to the present invention;

* Description of the symbols for the main parts of the drawings *

10: tuner 20: video decoder

30: broadcast information processing unit 40: control unit

50: memory unit 60: OSD processing unit

70: image processing unit 80: display unit

The present invention relates to a video device, and more particularly, to a video device capable of displaying broadcast information and a method of displaying broadcast information thereof.

After color TV broadcasting, stereo sound, remote control device, subtitle broadcasting, data broadcasting, etc. have adopted some digital technologies. In the 90's, computer and network technologies have been spreading more rapidly, so that the broadcasting field can realize high-definition and multifunctional TV. The pursuit of digital TV was made.

Broadcasting is a mass media that targets an unspecified number, which is advantageous because it can be compressed like computer data compression because all elements (video, audio, data) are treated digitally.

Therefore, it is possible to transmit one program of HDTV class and three or more programs of SDTV class to one channel, and to enjoy a much clearer screen by digitally transmitting and processing signals. The ghost phenomenon can be solved on its own, and radio waves reflected by obstacles can be solved on their own.

Digital signal processing of digital TV video and audio becomes the same digital data format, and additional data can be added and sent.

For example, multimedia related services such as information related to the program or real time information such as stocks, exchange rates, weather forecasts, and internet information can be enabled.

One of the characteristics of digital TV is interactive and multimedia broadcasting.

Interactive TV is a bi-directional flow of information between a viewer and a broadcaster, not like an analog TV. The viewer can receive various interactive additional information such as basic news, weather, and program-related information from the broadcaster. have. Then, the viewer can access the information service company displayed and connected to the additional information through a telephone line or a separate dedicated line to receive desired information. This type of operation is also called interactive TV.

Multimedia broadcasting is a comprehensive digital broadcasting concept in which a TV program and various additional information that is being broadcast are delivered together in a multimedia form including video, sound, and various data to be displayed on a TV screen and viewers can select and enjoy information.

Digital TV will be developed in the form of a combination of interactive TV and multimedia broadcasting concept.

In addition, various information, including the Internet, is broadcasted, and thus the information can be obtained by TV only without a computer.

At present, there are also studies to use such digital TVs in various ways.

Looking at the current status of digital TV (DTV) broadcasting in Korea, after the pilot broadcast in 2000, the metropolitan area is performing main broadcasting in 2002, the metropolitan area is scheduled for 2004, and all the DTV broadcasting conversion will be completed by 2010. Is expected.

The TV basically includes a user input device such as a remote control (hereinafter referred to as a remote controller), an A / V processing unit that decodes audio / video information, and various channels from service information. And a data processor for separating information, a database for storing the separated channel information, and a controller for controlling the operation of the TV and the display of the EPG (Electronic Program Guide).

When the TV receives the broadcast signal, the demultiplexer separates audio / video information and additional information from the broadcast signal. The separated audio / video information is input to an AV processor, and the additional information is input to a data processor.

The additional information generally includes a program association table (PAT), a time date table (TDT) / time offset table (TOT), an event information table (EIT), and the like. The PAT includes information about a plurality of programs, and the TDT / TOT includes time information of each program. The EIT contains information such as the title of the program, the storyline, broadcast restriction level, start / end time, and broadcast time.

The data processor separates the EIT information from the additional information and stores the EIT information in a database in a predetermined format.

Hereinafter, an EPG in a conventional TV will be described with reference to the accompanying drawings.

FIG. 1 is a diagram illustrating an EPG screen displayed on a general TV, and FIG. 2 is a diagram illustrating an EPG screen when a specific channel is selected in the EPG screen of FIG. 1.

FIG. 1 illustrates an EPG screen displayed on a general TV. As illustrated in FIG. 1, an EPG displays a list of channels, a sequence, and a program allocated to each time.

FIG. 2 illustrates an EPG displayed on a TV screen when a viewer selects a specific channel on the EPG screen of FIG. 1. Here, when the viewer selects the MBC TV, the EPG provides detailed information of the current program and the next program scheduled for the MBC broadcast according to the current time.

As shown in FIGS. 1 and 2, the stored additional information is provided through an EPG menu screen including a current program and a next program of each channel according to a user's command. The EPG also provides a list of channels, current time information, a program title (A), a broadcast time (B), and a program plot (C).

However, the above-described conventional TVs have the following problems.

First, in order to check broadcast information, a user must press a broadcast guide key on a remote control or a menu key of a TV. In other words, users are usually wondering what is the next broadcast on their favorite channel. In such a case, if the broadcaster does not provide a guide for the next broadcast, the user may not know or should check through the EPG.

Second, since it is necessary to continuously remember the broadcasting information that the user wants to watch after confirming the broadcasting information, it is difficult to accurately match the viewing time with the broadcasting channel which is more preferable than the current broadcasting channel.

Third, since the entire broadcast information is displayed every time the broadcast information is checked, the screen of the current broadcast channel could not be properly viewed.

The present invention is to solve the above problems, an object of the present invention is to display the broadcast information required by the user in a predetermined area of the TV screen to process the subtitle can be more easily provided to the user A video device and a method of displaying broadcast information thereof are provided.

In order to achieve the above object, the present invention provides a tuner for tuning a broadcast channel, a video decoder for decoding a video signal among broadcast signals input through the tuned broadcast channel, and a broadcast signal input through the tuned channel. A control unit providing broadcast information and display form information of the broadcast information to an on-screen display (OSD) processing unit, and processing the broadcast information from the control unit to be displayed in a predetermined area under the control of the control unit. An on-screen display processing unit, an image processing unit for processing the broadcasting information of the on-screen display processing unit in the caption form on the image signal decoded by the image decoder unit, and a display unit for displaying the image signal processed by the image processing unit; It provides a video device characterized in that the configuration.

The video apparatus may further include a broadcast information processing unit for separating and processing analog broadcast information (KBPS) or digital broadcast information (PSIP) from the input broadcast signal, and the broadcast processed by the broadcast information processing unit. When the information is analog broadcast information, it is preferable that the memory unit further comprises a memory for storing the analog broadcast information.

The controller may control the broadcasting information to be displayed in the caption form in the on-screen display processing unit.

In addition, the broadcast information is preferably configured to include at least one or more of the title of the program, the broadcast time, the plot of the program and the channel number information of the broadcast is provided with subtitles.

In order to achieve the above object, the present invention is to determine whether the broadcast information is present in the tuned broadcast channel while displaying the video signal of the tuned broadcast channel when the broadcast information subtitle function is set by the user, and the determination result If there is broadcast information, the current time is checked, and when the first time set by the user is reached, the second time set by the user in the form of a subtitle together with the video signal according to the condition set by the user in the broadcast information. It provides a method for displaying broadcast information in a video device comprising the step of displaying during.

The determining of whether the broadcast information exists in the tuned broadcast channel may be performed by separating analog broadcast information (KBPS) and digital broadcast information (PSIP) from the tuned broadcast channel and storing the analog broadcast information in a memory unit. And when the time set by the user is reached, the next broadcast information of the broadcast channel of the displayed video signal, the broadcast information of the broadcast channel registered by the user as the preferred channel, and the broadcast channel registered by the user in the preferred genre. Preferably, at least one broadcast information of the broadcast information is read from the memory unit or the digital broadcast information.

The caption function setting may include: turning on a menu of the video apparatus by the user of the video apparatus, selecting a caption function setting mode among menu functions of the video apparatus, and turning on the caption function; And adjusting the caption function setting time using a menu, and registering one or more of the user's preferred channel and / or preferred genre.

Preferably, the first time is a time before the broadcast of the tuned broadcast channel ends, and the second time is one of a broadcast end time of the tuned broadcast channel and a predetermined time after the tuned broadcast channel ends. Preferably, the first time and the second time are one of monthly, weekly, daily, hour, and minute units.

Therefore, according to the present invention, if the user sets the caption function to view the broadcast information, the user can check the broadcast information without pressing the remote control or the menu key of the TV, can accurately match the viewing time of the preferred broadcast channel, and the broadcast information. Is displayed in the subtitle format, it is possible to display in a range that does not significantly interfere with the viewing of the current broadcast channel.

Other objects, features and advantages of the present invention will become apparent from the following detailed description of embodiments taken in conjunction with the accompanying drawings.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described.

3 is a block diagram illustrating a video device according to a first embodiment of the present invention.

According to the present invention, a video device includes a tuner 10, an image decoder 20, a broadcast information processor 30, a controller 40, a memory 50, an OSD processor 60, and an image. It consists of a processing unit 70 and a display unit 80.

Here, the tuner 10 tunes to a broadcast channel desired by the user.

The video decoder 20 decodes a video signal among broadcast signals input through the tuned channel.

The broadcast information processor 30 separates analog broadcast information (KBPS: Kilo Bits Per Second) and digital broadcast information (PSIP: Program and System Information Protocol) from the input broadcast signal.

The memory unit 50 stores analog broadcast information KBPS among the broadcast information processed by the broadcast information processor 30. In other words, the broadcast information KBPS in the analog broadcast is continuously stored in the memory unit 50 because the transmission speed per hour is slow. However, since the digital broadcast information (PSIP) has a very high transmission speed, the controller 40 may directly read the broadcast information from the broadcast signal and process it directly when necessary. SDRAM may be used as the memory unit 50. In this case, the broadcasting information stored in the memory unit 50 includes the EPG of the entire EPG or a specific channel or the title of the program, the broadcast time, the plot of the program (see FIG. 2), and the subtitle of the broadcast. Include at least one of the channel number information.

The OSD processor 60 performs a process for displaying analog broadcast information (KBPS) or digital broadcast information (PSIP) in a subtitle-type OSD (On Screen Display) in a predetermined region of the display 80.

The image processor 70 processes an image (or mixed) of the image decoded by the image decoder 20 and the broadcast information processed by the OSD processor 60 to match the format of the display 80.

The display 80 displays an image processed by the image processor 70.

The controller 40 selectively stores the broadcast information processed by the broadcast information processing unit 30 in the memory unit 50, and broadcast information stored in the memory unit 50 is stored in the display unit 80 according to a user's selection. The entire video apparatus is controlled, including a function of displaying the subtitle OSD in a predetermined region. Therefore, depending on the user's choice, the entire EPG can be displayed in OSD, only the EPG of a specific channel can be displayed, or the specific information (program title, broadcast time, program plot (see Figure 2), subtitles mentioned above in the EPG information). One or more of channel number information of the provided broadcast) may be displayed in a subtitle form.

The first embodiment of the present invention shows a case where both the analog broadcast information (KBPS) and the digital broadcast information (PSIP) are processed from the broadcast signal received by the tuner 10.

Therefore, in the case of receiving only the analog broadcast information, as shown in Fig. 4 showing the second embodiment of the present invention, the tuner 10, the video decoder 20, the control unit 40, , The memory unit 50, the OSD processing unit 60, the image processing unit 70, and the display unit 80.

When only digital broadcast information is received, as shown in FIG. 5 of the third embodiment of the present invention, the tuner 10, the video decoder 20, and the broadcast information processor 30 and the memory unit 50 are not provided. , The controller 40, the OSD processor 60, the image processor 70, and the display 80 can be configured only.

6 is a flowchart for explaining a method of displaying broadcast information in a video device according to the present invention.

In the method for displaying broadcast information in a video device according to the present invention, when the video device (TV) is turned on, the controller of the video device determines whether the broadcast information subtitle function is set by the user (S10).

Judgment result (S10) If the broadcast information subtitle function is set, it is determined whether the channel tuned by the tuner is an analog broadcast channel or a digital broadcast channel (S20).

As a result of the determination (S20), when receiving the digital broadcast from the tuner of the video device (the user selects and watches the digital broadcast channel), the broadcast information data signal is checked from the broadcast signal (S30).

Next, it is determined whether broadcast information is included in the checked broadcast information data signal (S40).

As a result of determination (S40), if there is no broadcast information in the broadcast information data signal, the broadcast information is displayed on the display unit in OSD form (S60).

In operation S20, if the tuner of the video apparatus is receiving an analog broadcast (the user selects and watches a digital broadcast channel), it is determined whether the broadcast information is in the memory unit (S50).

 As a result of determination (S50), if there is no broadcast information in the memory unit, no broadcast information is displayed on the display unit in OSD form (S60).

If there is broadcast information, the current time is checked (S70).

Subsequently, the result of the check determines whether the time is set by the user (first time) (S80). If the determination time is set by the user, the broadcasting information is searched according to the condition set by the user (S90). In operation S100, the display apparatus 100 displays a time (second time) set by the user in the (OSD method).

In this case, the first time set by the user is basically the time before the end of broadcasting of the currently displayed broadcast, and basically performs broadcasting information guidance for the next broadcast of the current channel, and the user's preferred channel according to the user's selection. Or broadcast information on the preferred genre.

This will be described in more detail with reference to FIG. 7. FIG. 7 is a flowchart for explaining a method of setting a caption function among broadcasting information display methods in a video apparatus according to the present invention. First, a video apparatus user turns on a menu of a video apparatus. (S110).

Next, select the subtitle function setting mode of the menu function to turn on the subtitle function (S120).

Then, the submenu is adjusted to adjust the subtitle setting time (S130). In this case, the caption function may be performed on a monthly, weekly, daily, hour, and minute basis.

The reason for this is to ensure that viewers never miss a program they must watch.

In FIG. 8, the set time is adjusted by the minute. The display time is displayed from 10 minutes or 5 minutes before the first broadcast to the end of the current broadcast (second time), or 10 minutes or until the end of the current broadcast. 5 minutes before (1st time) can be set to 5 minutes or 10 minutes (2 'time) after the end of the current broadcast. The reason why the setting is until 5 minutes or 10 minutes is because the user may forget channel switching to another broadcast channel after the end of the current broadcast. Therefore, the subtitle function of the present invention may be displayed as a subtitle for the next broadcast of the current channel before the broadcast of the current channel ends (see FIG. 8), and the user's favorite channel (s) as well as the next broadcast of the current channel. 9) and / or broadcast information including channel information of a user's preferred genre (FIG. 10) can be continuously provided as subtitles. For example, if you select 10 minutes ago or 5 minutes ago, the subtitles are displayed until the end of the current broadcast. If you select 5 minutes or 10 minutes later, 5 minutes before or 10 minutes before the end of the current broadcast. Subtitles are displayed until 10 minutes later.

Subsequently, the user adjusts the caption function setting channel (S140). In this case, the caption function setting channel is a channel corresponding to the current channel or another channel or a favorite channel or a favorite genre because it is difficult to perform a caption function for all broadcasts. In addition, the preferred channel or the preferred genre may be automatically displayed in the OSD form so that the user may automatically select the preset preferred channel or the preferred genre, or the user may separately select (set) the subtitle function setting channel (S140). 9 and 10). In this case, in FIGS. 8 to 10, the direction is adjusted using the numeric keys or the channel or the volume keys of the remote controller, and finally, the caption function setting input is completed using the key designated as the selection key of the remote controller.

In the video apparatus and the broadcasting information display method using the same according to the present invention has the following advantages.

First, if the user sets the caption function to view the broadcast information, you can check the broadcast information without pressing the menu keys of the remote control or TV.

Second, since the user continuously displays the broadcast information to be watched, the viewing time of the preferred broadcast channel can be accurately matched.

Third, since the broadcasting information is displayed in the subtitle format, it is possible to display the broadcasting information within a range that does not significantly affect the viewing of the current broadcasting channel.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims.

Claims (10)

A tuner for tuning a broadcast channel; A video decoder to decode a video signal among broadcast signals input through the tuned broadcast channel; A control unit for providing broadcast information among the broadcast signals input through the tuned channel and display type information of the broadcast information to an on-screen display (OSD) processor; An on-screen display processing unit for processing the broadcasting information in the control unit to be displayed in a predetermined area under the control of the control unit; An image processing unit which processes the broadcasting information in the on-screen display processing unit into a caption form on the image signal decoded by the image decoder unit; And a display unit for displaying an image signal processed by the image processor. The method of claim 1, And the video apparatus further comprises a broadcast information processor for separating and processing analog broadcast information (KBPS) or digital broadcast information (PSIP) from the input broadcast signal. The method of claim 2, The video device, And a memory unit for storing the analog broadcast information when the broadcast information processed by the broadcast information processor is analog broadcast information. The method of claim 1, And the controller controls the type of broadcasting information to be displayed in the caption form in the on-screen display processing unit. The method of claim 1, And the broadcast information comprises at least one of a title of a program, a broadcast time, a plot of the program, and channel number information of a broadcast provided with subtitles. Determining whether broadcast information exists in the tuned broadcast channel while displaying a video signal of the tuned broadcast channel when the broadcast information subtitle function is set by the user; If the determination result shows that there is broadcast information, when the first time set by the user is checked, the user sets the broadcast information according to the condition set by the user in the broadcast information together with the video signal in subtitle form. And displaying the display information for a second time period. The method of claim 6, Determining whether broadcast information exists in the tuned broadcast channel, Storing the analog broadcasting information in a memory unit by separating and processing analog broadcasting information (KBPS) and digital broadcasting information (PSIP) in the tuned broadcasting channel; When the time is set by the user, the next broadcast information of the broadcast channel of the displayed video signal, among the broadcast information of the broadcast channel registered by the user as the preferred channel, and the broadcast information of the broadcast channel registered by the user in the preferred genre And displaying at least one broadcast information by reading from the memory unit or the digital broadcast information. The method of claim 6, The caption function setting, The user of the video device turning on a menu of the video device; Turning on the caption function by selecting a caption function setting mode among menu functions of the video apparatus; Adjusting the caption function setting time with the submenu of the caption function; And registering one or more of the user's preferred channel and / or preferred genre. The method of claim 6, The first time is a time before the broadcast of the tuned broadcast channel ends, and the second time is one of a broadcast end time of the tuned broadcast channel and a predetermined time after the tuned broadcast channel ends. Broadcast information display method in a video device. The method of claim 9, And the first time and the second time are one of monthly, weekly, daily, hour, and minute units.

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