KR19990042397A - How to block voice on TV - Google Patents

Abstract

The present invention provides a speech blocker in a television, which enables the user to remove obscene or violent words from the background sound by using caption character information inserted in a predetermined horizontal line within a vertical blanking period of a broadcast signal. A method comprising: detecting a caption character in a received broadcast signal, searching whether the detected caption character is included in a pre-stored voice pattern of an obscene or violent word, and the detected caption character is If the voice pattern is stored in the pre-stored voice pattern, the voice pattern is extracted from the separated voice signal of the received broadcast signal, and the voice pattern is extracted and output. Outputs only background sound so viewers can It can prevent the taking.

Description

How to block voice on TV

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method for blocking sound in television, and more particularly, to a method for blocking sound in television, which enables to remove obscene and violent words separately from background sounds when watching television or video.

In general, in a broadcasting system that provides an extended data service (EDS), for example, KBPS (Korea Broadcasting Program System) is a program for broadcasting programs and scheduled recording, and standard time data and viewing grades and captions. By converting the character information into a digital signal and inserting it into any one line of a video vertical blanking interval (VBI), this signal is demodulated by a KBPS decoder on the video receiving device side to reserve a broadcast program. You can perform functions such as recording and caption processing.

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

However, in the viewing restriction using the V-CHIP, the audio cut off the output of the background sound as well as the voice that takes the ratings when the voice is cut off. In the present invention, only the corresponding voice is extracted and blocked, and the background sound can be output as it is. Was done.

It is an object of the present invention to detect the caption text signal inserted in the broadcast signal when the broadcast signal is pre-stored in the television voice pattern of the obscene and violent word, if the detected character is a pre-stored obscene or violent word, the corresponding voice pattern The present invention provides a method for blocking a voice in a television, by allowing a user to watch a background sound in which obscene or violent words have been deleted by deleting and outputting only a corresponding voice pattern from a broadcast signal received by using.

The sound blocking method in a television according to the present invention is a method for erasing and outputting only obscene or violent words by using caption character information inserted in a predetermined horizontal line in a vertical blanking period in a television. Detecting a caption character in the search method, detecting whether the detected caption character is included in a pre-stored voice pattern of a lewd or violent word, and if the detected caption character is included in a pre-stored voice pattern And extracting and outputting the speech pattern by reading the speech pattern and extracting the speech pattern from the separated speech signal of the received broadcast signal.

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

2 is a flow chart illustrating a voice cut 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 portion 40 voice signal processing portion

50: voice remover 60: speaker

70: character 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 unit 30, a voice signal processing unit 40, and a voice removing unit 50. , A speaker 60 and a character 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 unit 30 and the voice signal processing unit 40 based on the key signal from the key input unit 10. If the caption character detected and applied from 70 is a lewd or violent word stored in the voice pattern storage unit 80, the detected caption character is a voice stored in the voice pattern storage unit 80. The voice pattern is read from the voice pattern storage unit 80 and applied to the voice control unit 50.

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

Also, the voice signal processor 40 separates and outputs a voice signal including a background sound from a broadcast signal from the tuner unit 30 under the control of the microcomputer 20.

On the other hand, the voice controller 50 filters the extracted voice pattern band from the voice signal applied from the voice signal processor 40 by using the voice pattern applied from the voice pattern storage unit 80 to extract and remove the applied voice pattern. Only the background sound from which obscene or violent words of the band are removed is output to the speaker 60.

The character decoder 70 extracts caption character data inserted in a predetermined region of the vertical blanking period of the video signal separated from the broadcast signal from the tuner unit 30 and applies it to the microcomputer 20.

Meanwhile, the voice pattern storage unit 80 stores voice patterns of obscene or violent words, outputs the stored words to the microcomputer 20 under the control of the microcomputer 20, and controls the microcomputer 20 to control the microcomputer 20. On the basis of this, the stored voice pattern is applied to the voice controller 50.

Next, a description will be given in detail with reference to the flowchart of FIG. 2, which attaches a voice cut process in a television according to a preferred embodiment of the present invention including the above-described configuration unit.

First, when the tuner unit 30 receives and outputs a broadcast signal through a channel set with the TV turned on, the broadcast signal output from the tuner unit 30 is converted into a displayable signal by an image signal processor (not shown) and is omitted. Is displayed on the monitor.

In addition, the broadcast signal received and applied from the tuner unit 30 is separated from the voice signal processing unit 40 and output to the speaker 60 through the voice control unit 50 so that the user can watch the broadcast.

At this time, the broadcast audio signal is inserted into the broadcast signal as a caption character, which is displayed by caption processing using an OSD function not shown.

Meanwhile, the caption character corresponding to the broadcast voice signal is detected by the character decoder 70 and applied to the microcomputer 20 (step 200).

In this case, when the obscene or violent caption character is applied, the microcomputer 20 deletes only the obscene or violent voice except for the background sound. In operation 202, a search is made to see if the word is stored in the stored voice pattern storage 80.

At this time, if the voice pattern corresponding to the caption character detected and applied by the text decoder 70 is stored in the voice pattern storage unit 80 (step 204), the voice pattern stored in the voice pattern storage unit 80 is stored. Is controlled by the voice control unit 50 (step 206).

Next, the voice controller 50 removes a band corresponding to the voice pattern applied from the voice pattern storage unit 80 from the voice signal applied from the voice signal processor 40 and applies it to the speaker 60 (steps 208, 210). Is returned.

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, the violent or obscene language is deleted when the audio signal is output from the television, and only the background sound is output, thereby preventing the viewer from listening to the violent or obscene language.

Claims (1)

A method for erasing and outputting only obscene or violent words by using caption character information inserted in a predetermined horizontal line in a vertical blanking period in a television, Detecting a caption character in the received broadcast signal; Searching whether the detected caption character is included in a pre-stored voice pattern of an obscene or violent word; And if the detected caption character is included in a pre-stored voice pattern, reading the voice pattern, extracting the voice pattern from the separated voice signal of the received broadcast signal, and outputting the extracted voice pattern.