KR100329273B1 - Method and device for picture output in TV - Google Patents

Abstract

TV (screen) output method and apparatus according to the present invention,

(a) determining a request type of a user when two broadcast programs are outputted on the screen as one broadcast program;

(b) If the user selects a broadcast service as a result of the determination of step (a), after analyzing the broadcast descriptor (broadcast_desciptor), the height, width, start position (x, identifying y);

(c) determining the height, width, and start position of each broadcast signal for the selected area when the user's area is designated as the determination result of step (a);

and (d) multiplying and analyzing the broadcast signal analyzed after the steps (b) and (c) according to a user's preference to enlarge and reduce the broadcast signal and output it to the screen.

According to the present invention, when the two broadcast programs, that is, the main broadcast program and the sub-broadcast program are broadcasted in one broadcast program, the user can adjust the output of the main screen or the sub-screen according to the user's preference. The present invention provides a TV that can be enlarged and watched on one screen according to a preference, or can be arbitrarily enlarged or reduced in size for viewing.

Description

TV screen output method and device {Method and device for picture output in TV}

The present invention relates to a TV screen output method and apparatus therefor, and in particular, when two broadcast programs are outputted on a screen as one broadcast signal, the TV screen output method for adjusting and viewing the screen output according to a user's preference and To the device.

In general, when a sports broadcasting program such as baseball or volleyball is terminated early on one channel of a broadcasting station, the broadcasting program is sent to another broadcasting program, and when the sports broadcasting program is longer than the expected broadcasting time, the regular broadcasting time. As a result, it was terminated or the previous broadcast (2) was shown at the bottom of the screen together with the regular broadcast (1).

By the way, when the regular broadcast (1) at the top of the screen 10 and the existing broadcast (2) program (for example, sports broadcast program) at the bottom of the screen at the same time, the viewer can not adjust such a broadcast service as it is Watch, or watch another broadcast channel.

However, the broadcasting service in one channel as described above has a problem in that when a viewer wants to watch only a regular broadcast or only wants to watch a broadcast before the regular broadcast, a broadcasting station does not provide a user with an opportunity to select a preference for such a service. .

In addition, there is a problem in that it is inconvenient for a user because it provides only a picture in picture (PIP) function for different channels and there is no adjustment function for the broadcast service.

The present invention has been made to solve the above problems, and when two broadcast programs, that is, the main broadcast program and the sub broadcastgram are broadcasted as one broadcast program, the main screen or sub-screen output is adjusted according to the user's preference. The present invention provides a TV screen output method and apparatus for allowing a user to enlarge and watch a single screen according to his / her preference or to arbitrarily enlarge or reduce the size of a main / second screen. .

1 is a view showing an example of a conventional TV screen output.

2 illustrates an example in which two broadcast programs are transmitted as one broadcast signal.

FIG. 3 is a diagram illustrating a data format for broadcast signal information of FIG. 2. FIG.

Figure 4 is a block diagram showing an embodiment of a TV screen output device according to the present invention.

5 is a flow chart showing a TV screen display method according to the present invention.

6 is a diagram illustrating an example of multi-screen effect processing according to the present invention for each mode.

<Description of Symbols for Main Parts of Drawings>

11 ... video signal controller 12 ... video signal storage

13 ... frame control 14 ... frame buffer

15 ... Video Selector 16 ... D / A (Digital Analog) Converter

17 ... control unit

The present invention TV screen output device for achieving the above object,

A video signal controller for analyzing a video signal received by two broadcast programs as one broadcast signal, a video signal storage unit for storing a video signal transmitted from the video signal controller, and a broadcast video stored in the video signal storage unit A frame controller which extracts signal information about a signal and a region selected by the user and adjusts the selected region to a user's selection region, a frame buffer which stores image information corresponding to the user region by the frame controller, the frame controller and the image signal controller An image selector for selecting and outputting an image signal transmitted from a digital signal, a digital analog converter for converting the image signal selected by the image selector into an analog signal and outputting the image signal on a screen; A video signal controller, a video signal storage unit, and And a control unit for controlling the frame control unit and the image selection unit.

And, the TV screen output method according to the present invention,

(a) determining a request type of a user when two broadcast programs are outputted on the screen as one broadcast program;

(b) If the user selects a broadcast service as a result of the determination of step (a), after analyzing the broadcast descriptor (broadcast_desciptor), the height, width, start position (x, identifying y);

(c) determining the height, width, and start position of each broadcast signal for the selected area when the user's area is designated as the determination result of step (a);

(d) multiplying the broadcast signal analyzed after the steps (b) and (c) according to the user's preference to enlarge / reduce the image and output it to the screen.

Here, in the step (d), the multi-screen effect processing according to the user's preference allows the display to be enlarged and displayed on the screen or to adjust the size of the main / sub screen.

Hereinafter, with reference to the accompanying drawings as follows. Figure 4 is a block diagram showing an embodiment of a TV screen output apparatus according to the present invention, Figure 5 is a flow chart showing a TV screen display method according to the present invention, Figure 6 is an example of a multi-screen effect processing according to the present invention Is shown by screen mode.

First, referring to FIG. 2, an image signal controller 11 for analyzing a received image signal, an image signal storage unit 12 for storing an image signal transmitted from the image signal controller 11, and the image A frame controller 13 for extracting signal information of a broadcast video signal stored in the signal storage unit 12 and a region selected by a user, and adjusting the region to be selected according to the region; and image information for the user region by the frame controller 13. A frame buffer 14 for storing a video signal; a video signal selector 15 for selecting one of video signals transmitted from the frame controller 14 and the video signal controller 11; and the video signal synthesizer 15; And a digital analog (D / A) converter 16 for converting the synthesized video signal into an analog signal and outputting it to the screen, and the video signal controller 11 and the video signal storage unit according to a user's key input signal. 12) and the frame And a control unit 17 for controlling the control unit 13 and the video signal selection unit 15.

Referring to the accompanying drawings, a TV screen output method according to the present invention configured as described above with reference to the accompanying drawings as follows.

First, stop the current broadcast (e.g. sports broadcast) in one broadcasting station under regular broadcasting and send the regular broadcasting program at that time, or make the regular broadcasting program the main broadcasting program and sub-television broadcasting. Send it as a program.

FIG. 2 is a flowchart schematically illustrating a method of transmitting two broadcast programs in one broadcast signal in one broadcasting station.

If there is a main broadcast program 1 and a sub broadcast program 2, they are mixed by the mixing unit 3 to make two broadcast programs 1 and 2 into one broadcast signal 4.

At this time, the signal information 5 of each of the main broadcast program (MainView) 1 and the sub broadcast program (SubView) 2 mixed in one broadcast signal 4, that is, the start position of the program (1) (2) Extracts information such as (x, y), height, and width to form a data format as shown in FIG. 3, and then mixes a broadcast signal into a signal information region 5 and a video stream, respectively. After mixing to (6), the process proceeds to the broadcast program transmission (7).

Such a data format of broadcast information for a broadcast service, referring to FIG. 3,

Descriptor_tag (data 1) indicates that the data is a broadcast descriptor (Descriptor_length), Descriptor_length (data 2) indicates the length of the broadcast descriptor, and Transport_Stream_ID (data 3) indicates which broadcast stream the broadcast script is for the data. .

MainView (start_x, start_y, width, height) (data 4 ~ 7) informs the start position (x, y), height and width of main broadcast program, and SubView (start_x, start_y, width, height) (data 8 ~ 11) ) Tells the start position (x, y), height, and width of the sub broadcast program (SubView), respectively.

When the broadcast signal is received by the user's TV with this information, the user decides whether to view or adjust the information transmitted by the broadcasting station.

When the two broadcast programs as described above are received in the TV as one broadcast signal, the operation of the present invention will be described with reference to FIG.

First, the video signal controller 11 analyzes the received video signal by the control signal of the control unit 18 and outputs it to the video signal storage 12 to store the received video signal.

Here, when the broadcast signal of the normal mode (one program) is input, the video signal controller 11 outputs the video signal stored in the video signal storage 12 through the video selector 15.

In addition, when two broadcast programs are inputted on one broadcast signal, the video signal controller 11 analyzes them and stores them in the video signal storage 12.

At this time, if the user has a request signal through an input device such as a remote controller, the control unit 17 determines what the user's request signal is to select a broadcast service or whether an arbitrary area is designated.

The control unit 17 outputs a corresponding control signal to the frame control unit 13 in accordance with the determination result of the user so as to extract broadcast information.

Then, the frame control unit 13 receives the video signal stored in the video signal storage unit 12 by the control signal of the control unit 19, extracts the main / sub broadcast information, and stores it in the frame buffer 14.

That is, the frame control unit 13 extracts the start position (start_x, y), height, and width of the main broadcast program MainView according to the control signal of the control unit 17, and the sub-broadcaster. The starting position (start_x, y), height, and width of the program (SubView) are extracted respectively.

Here, when the user selects one of the broadcast services (screen modes 1, 2, 3) as shown in FIG. 6, after analyzing the broadcast descriptor for the corresponding broadcast information, the start position of each broadcast signal in the analyzed data. , Height and width are extracted and stored in the frame buffer 14.

In addition, if a user designates an area to be enlarged or reduced by using an input device, the start position, height, and width of the designated area are determined and then stored in the frame buffer 14 according to the user's selection area.

Subsequently, the frame controller 15 stores the data stored in the frame buffer 14 in the frame buffer 14 by combining the data stored in the frame buffer 14 after the process of enlarging or reducing broadcast information according to a pre-stored algorithm (expansion or reduction algorithm). .

Then, when the broadcast information stored in the frame buffer 14 is output to the image selector 15, the image selector 15 outputs the broadcast program and the image signal controller 11 output from the frame controller 13. One of the broadcast programs output from the control unit 17 is selected and output according to the control signal of the control unit 17.

When the video signal stored in the frame buffer 14 is selected and output by the video selector 15 by the control signal of the control unit 17, the digital analog converter 16 converts the video signal into an analog signal to the next screen. Is output.

As such, the screen output to the screen by the user's adjustment is displayed in one screen (1A) (2A) of the main screen or sub-screen among the various screen modes as shown in Figure 6 (screen mode 1,2), or the user Any screen is enlarged (2 → 2B) or reduced (1 → 1B) and displayed at the position where the area is designated (screen mode 3).

5 is a TV screen output method according to the present invention;

When two broadcast programs are received with one broadcast signal, the user's request type is determined (step S11). If the user's area is designated as a result of the determination (step S12), the start position and height of each broadcast for the designated area are determined. And the width (step S13).

However, as a result of determining the type of broadcast request in step S11, if the broadcast service is not selected by the user, the broadcast descriptor corresponding to each screen mode is analyzed (step S14). The starting position, the height and the width are extracted (step S15).

Then, when the screen output information (start position, height, width) for each broadcast is extracted (steps S13, S15), each of the screen modes 1, 2, 3 as shown in FIG. Multi-screen effect processing (screen zooming / reduction algorithm) is performed on the broadcast signal and output to the screen (steps S16 and S17).

That is, in step S16, the main or sub screen is output as one screen according to the user's preference, or the size of the main or sub screen is relatively enlarged / reduced.

Accordingly, in the present invention, when two broadcast programs are mixed and broadcast in one broadcast signal, the multi-screen effect processing, that is, the main or sub-screen is enlarged and output on one screen according to the user's request, The position of the screen is mirrored or resized.

In addition, when a user arbitrarily selects an area, the user may find location information on the area and process the multi-screen effect of each broadcast information in the same manner as in FIG.

As described above, in the present invention, when two broadcast programs are broadcast on one broadcast channel, the size of the current screen can be enlarged or reduced so that the size thereof can be adjusted according to one screen or symbol, so that the user's preference can be adjusted. As a result, it provides an opportunity for more diverse screen selection.

Claims (4)

(a) determining a request type of a user when two broadcast programs are outputted on the screen as one broadcast program; (b) If the user selects a broadcast service as a result of the determination of step (a), after analyzing the broadcast descriptor (broadcast_desciptor), the height, width, start position (x, identifying y); (c) determining the height, width, and start position of each broadcast signal for the selected area when the user's area is designated as the determination result of step (a); and (d) processing the multi-screen effect according to the user's preference and outputting the broadcast signal analyzed after step (b) and (c) to the screen. The method of claim 1, The multi-screen effect processing, TV screen output method characterized in that to display only one of the main / sub-screen to enlarge or display the size of the main / sub-screen arbitrarily according to the user's preference . A video signal controller for analyzing a video signal received by two broadcast programs as one broadcast signal, a video signal storage unit for storing a video signal transmitted from the video signal controller, and a broadcast video stored in the video signal storage unit A frame controller which extracts signal information on a signal and a region selected by a user and processes and adjusts a multi-screen effect according to a user's selection region, a frame buffer storing image information suitable for a user region by the frame controller, and the frame An image selector for selecting and outputting an image signal transmitted from a controller and an image signal controller, a digital analog converter for converting an image signal selected and output by the image selector into an analog signal and outputting the image to a screen; The screen of the corresponding area is output according to the input control signal of And a control unit for controlling an image signal controller, an image signal storage unit, a frame controller, and an image selector. The method of claim 3, wherein In the multi-screen effect processing of the frame controller, an arbitrary screen is enlarged and output as a single screen or an arbitrary screen is enlarged or reduced according to an area selected by a user using signal information of a broadcast video signal. TV display device.