KR19990042396A - How to block video on TV - Google Patents

Abstract

The present invention relates to a video blocking method of a television, in which a screen is divided by blocks by using parental control information inserted in a predetermined horizontal line in a vertical blanking period so that only a part of the screen is blocked. Input and store the viewing grade by inputting the password of the viewer by the viewer's key input, and detect the viewing grade of the received broadcast signal and display block position data in units of blocks on the screen.If the position data is detected, the detected viewing grade is input. It is determined whether the rating is higher than the rated rating, and if the detected rating is higher than the input rating, the image displayed in the block on the screen corresponding to the detected position data is blocked, and the TV is divided into blocks by viewing rating on one screen. To display selectively to viewers Although the program takes a while to understand the overall grade Zheng plot that will be blocked only watch video of a particular block of a particular screen.

Description

How to block video on TV

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video blocking method in television, and more particularly, to a video blocking method in which a screen is divided into blocks according to a viewing grade when viewing a television or a video so that only the corresponding block can be displayed.

In general, in a broadcasting system providing an extended data service (EDS), for example, the KBPS (Korea Broadcasting Program System) is a digital display of data for broadcast programs and scheduled recording, data representing standard time data, and viewing ratings on a broadcast signal. By converting it into a signal and inserting it into any one line during the vertical blanking interval (VBI), the signal is demodulated by a KBPS decoder on the video receiving device side to perform functions such as broadcast program reservation recording function. Could carry out.

Therefore, in the television equipped with the above-described EDS and equipped with the KBPS decoder, it was possible to restrict the viewing on the television by using the data representing the viewing grade among the above-mentioned data.

On the other hand, V (Violence) -CHIP has been developed to screen young people from watching programs that are pornographic, violent, or languid among broadcast programs broadcast by air or cable.

However, even in the viewing restriction using the V-CHIP, the viewing is restricted by limiting the viewing of a whole program or partially blocking the whole screen.

However, since the viewing restriction of the entire screen limits the viewing of even the unnecessary parts to the viewer, it is inconvenient to grasp the flow of the broadcasting contents, and there is also a problem that is not visually smooth. In the present invention, the screen is divided into a predetermined number of blocks. In the same screen, I was looking for a way to restrict viewing by block.

An object of the present invention is to block the video signal if the broadcast program to be played by comparing the viewing ratings inserted in the broadcasting signal and the viewing ratings input by the user when the broadcasting signal is reproduced in the television is higher than the ratings input by the user The present invention provides a video blocking method for a television that detects display block position data for each block inserted in a block and blocks only the video of the corresponding block on one screen.

A video blocking method in a television according to the present invention is a method for blocking an image by dividing a screen into blocks by using parental control information inserted in a predetermined horizontal line in a vertical blanking period in a television. Inputting a parental level by inputting a password, detecting a parental level of the received broadcast signal and display block position data in units of blocks on the screen, and when the positional data is detected, the detected parental level is inputted Determining whether the rating is higher than the rating, and if the detected viewing rating is higher than the input viewing rating, blocking the image displayed on the corresponding block on the screen corresponding to the detected position data.

1 is a schematic block diagram of a television according to a preferred embodiment of the present invention.

2 is a flowchart illustrating an image blocking process in a television according to a preferred embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

10: key input unit 20: microcomputer

30: tuner unit 40: video signal processing unit

50: OSD 60: Monitor

70: EDS Decoder

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.

1 is a schematic block diagram of a television according to a preferred embodiment of the present invention, which includes a key input unit 10, a microcomputer 20, a tuner 30, an image signal processing unit 40, an OSD unit 50, and a monitor. 60 and the EDS decoder 70.

In this configuration, the key input unit 10 is provided with a plurality of keys for performing the operation of the television outputs a key signal corresponding to the user's key operation, using a remote control that can normally be input from a remote location, The key signal carried on the infrared carrier from the detector is detected and output to the microcomputer 20 described later.

The microcomputer 20 controls the overall operation of the television by controlling the tuner 30, the image signal processing unit 40, and the OSD unit 50 based on the key signal from the key input unit 10. If the password, which is authorized based on a predetermined key signal from the key input unit 10, is compared with each of the preset passwords, the corresponding viewing grade is stored, and when the display cut-off position data in units of blocks is applied from the EDS decoder 70, By controlling the OSD unit 50 by comparing the input viewing grade with the viewing grade detected and applied from the EDS decoder 70, blocking control of an image displayed on a block of a screen selectively corresponding to display blocking position data in units of blocks do.

Meanwhile, the tuner 30 outputs a broadcast signal received by being tuned to a channel corresponding to the control from the microcomputer 20.

The video signal processor 40 separates and outputs the video signal from the broadcast signal from the tuner 30 under the control of the microcomputer 20, and processes the separated video signal into a displayable signal.

On the other hand, the OSD (On Screen Display) (50) is a means for displaying a character at a predetermined position on the screen, due to the control of the microcomputer 20 synthesizes the character signal to the image signal from the image signal processor 40 In particular, in the present invention, the video signal displayed in the corresponding block on the screen under the control of the microcomputer 20 is cut off through the blue back screen or the like and output to the monitor 60.

In addition, the EDS decoder 70 extracts the viewing grade and block display position data for each block inserted into a predetermined region of the vertical blanking period of the separated video signal from the video signal processor 40 to the microcomputer 20. Is authorized.

Next, a detailed description will be given with reference to the flowchart of FIG. 2 attached to a video blocking process in a television according to a preferred embodiment of the present invention including the above-described configuration unit.

First, when the TV is turned on in response to a predetermined key input from the key input unit 10 of the user, the microcomputer 20 controls to display and display the predetermined text screen for inputting the viewing grade by controlling the OSD unit 50. Based on the predetermined key signal applied from (10), the authorized password is compared with the password preset for each viewing grade to store the current viewing grade (step 200).

Next, the audience rating and screen inserted into any horizontal line within the vertical blanking period of the broadcast signal in the broadcast signal received from the tuner 30 and applied to the source broadcast program selected by the user, for example, are displayed block by block. Block-by-block display position data indicating the position of a block on the screen is detected through the EDS decoder 70 and applied to the microcomputer 20 in order to restrict viewing of the language (steps 202 and 204).

On the other hand, the viewing grade may be assigned to one broadcast program and inserted into any horizontal line in the vertical blanking period of the broadcast signal, or may be inserted for each video scene together with block-by-block display position data.

The display block position data for each block is inserted in any horizontal line in the vertical synchronization erasing period before the next screen in order to view and restrict the predetermined block of the next screen.

Therefore, when the block-by-block display position data is detected and applied from the EDS decoder 70 (step 206), the microcomputer 20 detects the viewing ratings input in the above-described step 200 in the above-described step 202. It is determined whether the rating is above the rating (step 208).

At this time, if the input audience rating is higher than the detected audience rating, the display block position data for each block is ignored and the next screen is displayed as it is (step 210).

On the other hand, the microcomputer 20 blocks the display of the image on the corresponding block of the next screen based on the block-blocking position data for each block detected based on the detected block rating if the rating is input in step 208 described above. Control signal is applied to the OSD unit 50 (step 212).

Then, the OSD unit 50 synthesizes a screen, such as a blueback, at a position corresponding to the block in the image signal applied from the image signal processing unit 40 and outputs it to the monitor 60 so that the viewer can view the ratings. The image of the block position cannot be viewed.

Meanwhile, in the present invention, although the image display of a part of the screen is blocked by using the OSD unit 50, it can be processed by means of a separate mosaic processing, and when object-oriented transmission and compression techniques such as MPEG4 are realized in the future, Only the objects you want can be blocked.

On the other hand, it will be understood by those skilled in the art that various changes and modifications can be made without departing from the spirit of the present invention.

As described above, according to the present invention, a TV screen is divided into blocks according to the ratings in one screen, and then selectively displayed, so that the viewer can understand the overall plot even if the broadcast program fits the ratings. There is an effect that can block only the video.

Claims (1)

A method for blocking an image by dividing a screen into blocks by using parental control information inserted in a predetermined horizontal line in a vertical blanking period in a television, Inputting a viewing grade by inputting a password by a viewer's key input; Detecting the viewing grade of the received broadcast signal and the display cutoff position data in units of blocks of the screen; When the location data is detected, it is determined whether the detected viewing rating is higher than the input viewing rating, and when the detected viewing rating is higher than the input viewing rating, the image displayed on the corresponding block on the screen corresponding to the detected location data is blocked. A method of blocking video in a television comprising the steps.