KR20000045829A - Method for changing size of auxiliary screen according to broadcasting program - Google Patents

Abstract

PURPOSE: A method for changing size of auxiliary screen according to broadcasting program is provided to change the size of the auxiliary screen in order to increase the joy of watching. CONSTITUTION: A method for changing size of auxiliary screen according to broadcasting program includes first thru fifth steps. At the first step, the size of auxiliary screen is determined. At the second step, whether an auxiliary screen exists is determined. At the third step, the genre of current broadcasting program on air is recognized. At the forth step, the size information of the auxiliary screen is accessed. At the fifth step, the size of the auxiliary screen is changed according to the result of the forth step.

Description

Size changing method of sub-screen by broadcasting program

The present invention relates to a method for processing a display area of a sub-screen in a television having a sub-screen function. In particular, the present invention is displayed through a sub-screen so that a viewer can feel more lively when watching a program of a corresponding broadcast through a sub-screen. The present invention relates to a method of changing the size of a subscreen according to a broadcast program to read the type on the broadcast program and to automatically change the subpicture size accordingly.

In general, a picture in picture (PIP) function of a television includes first and second tuners for receiving and tuning a broadcast signal transmitted from a broadcasting station, so that a screen can be divided into a main region and a sub region to simultaneously watch two broadcast signals. For example, the viewer may simultaneously search for or watch another broadcast signal of the sub picture displayed in the sub area while watching the broadcast of the main screen displayed in the main area.

In this case, the PIP process converts two broadcast signals or one broadcast signal (for a sub-screen) into a digital signal, performs image reduction processing for adjusting the screen size, and synthesizes the two broadcast signals to match the desired home screen position. Convert it back to a signal and process it.

Therefore, the PIP function allows a viewer to watch two broadcasts at the same time, thereby enabling a search function of searching for another broadcast on a sub-screen while watching a desired broadcast on a main screen.

1 is a schematic block diagram of a television having a conventional general PIP function. The control unit 80 controls the overall operation of the TV operation and the Internet connection by manipulation of a key input unit (not shown), and the control unit 80. The first tuner (10a) for receiving the broadcast signal of the main channel selected by the tuning channel voltage output from the antenna (ANT) and the broadcast signal of the sub-channel selected by the tuning channel voltage output from the control unit 80 First and second Ps separating the video signal P and the audio signal S from the second tuner 10b received from the antenna ANT and the signals output from the plurality of tuners 10a and 10b, respectively. First to process the video signal output from the first and second P / S separation unit (20a, 20b) by the / S separation unit (20a, 20b) and the operation control signal input from the control unit 80 And second image processing units 30a and 30b and the first P / S separation unit 20a. The headphone 70b is connected to the first voice processing unit 60a for outputting the output voice signal S through the speaker 70a and the voice signal S output from the second P / S separation unit 20b. The main screen according to the user's selection of the broadcast program output from the first and second image processing units 30a and 30b according to the second voice processing unit 60b and the operation control signal output from the control unit 80. And an image mixing unit 50 formed by mixing with the sub-screen and outputting the mixed image through the CRT 40.

In a television having a general PIP function configured as described above, a display area of a main screen and a sub-screen is usually divided as shown in FIG. 2, and an image displayed on the sub-screen is usually an image displayed on the main screen. Compared with the main screen, the image displayed on the sub-screen is less lively than the main screen because it is about 1/5 to 1/6.

Therefore, when watching a broadcast program of a certain genre such as a movie or a documentary through the sub-screen, a problem such as the user is very inconvenient because the screen size is small.

An object of the present invention for solving the above problems is to read the type of the broadcast program being displayed on the sub-screen in order to make viewers feel more vivid when watching the program of the broadcast through the sub-screen and the sub-screen size accordingly To provide a method for changing the size of the sub-screen according to the broadcast program to automatically change the.

1 is a schematic block diagram of a television having a conventional general PIP function;

2 is an exemplary diagram of a display area of a main screen and a sub-screen

3 is a schematic block diagram of a television having a PIP function to which the present invention is applied;

<Explanation of symbols for main parts of drawing>

ANT: antenna 10a, 10b: tuner

20a, 20b: P / S separation unit 30a, 30b: image processing unit

40: CRT 50: Image Mixer

60a, 60b: voice processing unit 70a: speaker

70b: headphone 80: control unit

110: broadcast genre detection unit 120: sub-screen size storage unit

In order to achieve the above object, a feature of the present invention is to set a size of a sub picture according to a genre of a broadcast program in a method of correcting a size on a sub picture in a television equipped with a PIP function capable of simultaneously viewing heterogeneous broadcast programs. Recognizing the program genre of the broadcast currently being displayed through the sub-screen, if the sub-screen is determined by the first step, the second step of determining whether the sub-screen exists by the PIP function, and the second step through the second step The fourth step of accessing the size information of the sub picture corresponding to the broadcast program genre of the sub-channel recognized through the third step from the data set in the first step, and the fourth step. And a fifth step of forming the subscreen according to the size of the subscreen accessed through the subscreen.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

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

FIG. 3 is a schematic block diagram of a television having a PIP function to which the present invention is applied. The controller 80 controls the overall operation of the TV operation and the Internet connection by manipulation of a key input unit, which is not shown. The first tuner 10a that receives the broadcast signal of the main channel selected by the tuning channel voltage output from the 80 from the antenna ANT, and the broadcast of the sub-channel selected by the tuning channel voltage output from the controller 80. A first tuner 10b for receiving a signal from the antenna ANT, and a first and a second for separating the video signal P and the audio signal S from the signals output from the plurality of tuners 10a and 10b, respectively. A video signal output from the first and second P / S separation units 20a and 20b is processed by the 2 P / S separation units 20a and 20b and an operation control signal input from the control unit 80. To the first and second image processing units 30a and 30b and the first P / S separation unit 20a. A first voice processor 60a for processing and outputting the voice signal S output from the second voice signal S, and a second voice for processing and outputting the voice signal S output from the second P / S separation unit 20b. A broadcast genre detector 110 that detects broadcast information (KBPS) from a broadcast program received through the processor 60b and the second tuner 10b to recognize and output a genre of the broadcast program, and the broadcast genre detector 110. Size information of the display area of the corresponding subscreen among various size information on the display area of the pre-stored subscreen according to a control signal output from the controller 80 which receives the information on the broadcast genre recognized through Is outputted from the first and second audio processing units 60a and 60b by the sub-screen size storage unit 120 to provide the second image processing unit 30b and a control signal output from the control unit 80. Switching unit 100 that selectively provides signals to the speaker 70a or headphone 70b, and the operation control signal output from the control unit 80 to form a main screen and a sub-screen according to the user's selection After the mixing is composed of an image mixing unit 50 for output through the CRT (40).

Looking at the preferred operation of the television having a PIP function to which the present invention configured as described above is applied as follows.

The controller 80 determines whether the PIP function should be performed by the current user. If it is determined that the PIP function is selected by the user, the controller 80 controls the second tuner 10b to receive a broadcast that the user wants to watch on the sub-screen. do.

The broadcast program received through the above process is separated into an image and an audio signal through the second P / S separator 20b and compressed by the second image processor 30b, and then the image mixer 50 It is mixed in a certain area.

In this process, the broadcast genre detector 110 detects and outputs information on the genre of the broadcast program being received through the second tuner 10b. The input control unit 80 determines the genre of the currently received broadcast program and outputs a control signal accordingly.

The sub-screen size storage unit 120 that receives the control signal output from the controller 80 outputs the size of the sub-screen corresponding to the input control signal among the stored sub-screens.

The size information of the sub-screen generated by the sub-screen size storage 120 is input to the second image processor 30b, and the second image processor 30b receives the second tuner 10b and the second P / S. The video signal of the sub-screen input through the separator 20b is compressed in accordance with the size information of the sub-screen generated by the sub-screen size storage unit 120 and then input to the image mixer 50.

Therefore, the image mixing unit 50 forms image data output from the first image processing unit 30a and the second image processing unit 30b into a main screen and a sub-screen, combines them, and outputs them to the CRT 40. However, the sub-screen maintains the size of the screen corresponding to the signal generated by the sub-screen size storage unit 120.

By providing a method of changing the sub-screen size according to the broadcast program according to the present invention operating as described above, the screen size is changed according to the genre of the broadcast program being displayed through the sub-screen so that viewers can feel the liveness of the broadcast program. The larger the feel, the more effective the user does not need to change the size of the sub-screen.

While the invention has been shown and described with respect to particular embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention as set forth in the claims. Anyone can see it easily.

Claims (1)

In the sub-screen size correction method in a television equipped with a PIP function capable of simultaneously watching different broadcast programs, A first step of setting a size of a sub picture according to a genre of a broadcast program; A second step of determining whether a sub-screen exists by the PIP function; A third step of recognizing a program genre of a broadcast currently being displayed on the subscreen if it is determined that the subscreen exists through the second step; A fourth step of accessing size information of the sub picture corresponding to the broadcast program genre of the sub-channel recognized through the third step, from the data set in the first step; And And a fifth step of forming a sub picture according to the size of the sub picture accessed through the fourth step.