KR100197753B1 - Sound separation apparatus of a television receiver - Google Patents

Abstract

The present invention relates to a sound separation device that is output to a television receiver speaker for outputting to a speaker by digitally separating and separating different voices in a conversation when two people are watching a TV in a mono broadcast. In order to solve the drawback that the viewers cannot hear the live sound, the sound is simultaneously output to the speakers installed on both sides when the two people talk on the TV, and the digital signal is demodulated by demodulating the sound signal processed by the sound processor 500. By including a digital signal converted by converting the signal and a high- and low-frequency filter isolating device 600 to separate the code to the existing TV viewers can hear more lively sound.

Description

Sound Separator Output to TV Receiver Speaker

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television receiver (hereinafter referred to as a TV). In particular, when watching a TV outputting sound through mono broadcasting, two speakers digitally separate and separate different voices during a conversation and are installed on both sides of the TV. It relates to a sound separating device output to a television receiver speaker for outputting each to a.

In general, a television receiver has a tuner 100 for receiving a broadcast signal transmitted from a broadcasting station, and a TV for processing the signal received by the tuner 100 as a whole by a set program, as shown in the block diagram shown in FIG. The microcomputer 200, a memory unit 220 for storing the data to be processed by the TV microcomputer 200 and the processed data, and image signals R, G, and B from the broadcast signal received by the tuner 100. Video processor unit 300 for processing the video signal, the CRT 400 for displaying the image signal processed by the video processor unit 300, and the tuner 100 by the control signal of the TV microcomputer 200. A sound processor 500 for processing a voice signal among the broadcast signals received by the sound amplifier, and a sound amplifier 520 for amplifying the voice signal processed by the sound processor 500 to a predetermined level and outputting the same to the speakers 522 and 524. It is composed largely.

That is, the TV receiver configured as described above receives a broadcast signal transmitted from a broadcasting station through the tuner 100 and inputs it to the video processor 300 and the TV microcomputer 200.

The TV microcomputer 200 processes contrast, bright, and image (color) signals, which are the maximum contrast ratios of the screen with respect to the broadcast signal received by the tuner 100, by a program set in the memory unit 220. Input to the video processor 300.

Therefore, the video processor 300 processes the signal input from the TV microcomputer 200 to output a stable video signal and to display it on the screen of the CRT 400.

In addition, the TV microcomputer 200 outputs a control signal for processing a voice signal among the broadcast signals received by the tuner 100 to the sound processor 500 so that the sound processor 500 processes the voice signal and then a sound amplifier ( The audio signal is amplified to a predetermined level via 520 to be output through the speakers 522 and 524 so that the viewer can listen to the audio while watching the image displayed on the screen of the CRT 400.

However, the general television receiver described above has the drawback that, when watching TV with sound output in monaural broadcasting, the sound is simultaneously output to the speakers attached to both sides of the TV at the same time, so that viewers cannot hear live sound. This has occurred.

The present invention is to solve the above-mentioned shortcomings, for the purpose of watching a TV that outputs sound in mono broadcasting, when two people in the TV to digitally process the different voices separated from each other and installed on both sides of the TV Output to the speaker (L) (R), so that the viewer can hear a more lively sound.

In order to realize the present invention having the above object, a sound separation device for demodulating the sound signal processed by the sound processing unit 500 is converted into a digital signal and the converted digital signal and the selected high and low frequencies to separate the code ( It is a main feature to include 600) in the existing TV.

1 is a block diagram schematically showing a typical television receiver.

Figure 2 is a block diagram showing a television receiver including a sound separation device output to the speaker according to the present invention.

Figure 3 is a flow chart showing the operation relationship of the television receiver with sound separation device output to the speaker according to the present invention.

* Explanation of symbols for main parts of the drawings

100: tuner 200: TV microcomputer

220: memory unit 300: video processor unit

400: CRT 500: sound processor

520: Sound Amplifier 522,524: Speaker

600: sound separation device 610: sound command control unit

620: frequency selector 630: sound demodulator

640: A / D conversion IC 650: decoder

660 digital filter 670 cord separation unit

680,682: D / A converter 690: error correction unit

Figure 2 is a block diagram showing a television receiver including a sound separation device output to the speaker according to the present invention.

A tuner 100 for receiving a broadcast signal transmitted from a broadcasting station, a TV microcomputer 200 for processing the signal received by the tuner 100 generally by a set program, and the TV microcomputer 200 for processing. A memory unit 220 storing the data to be processed and the processed data, a video processor unit 300 processing the image signals R, G, and B from the broadcast signal received by the tuner 100, and the video processor. The audio signal from the broadcast signal received by the tuner 100 by the control signal of the TV microcomputer 200 and the CRT 400 displaying the image signals R, G, and B processed on the screen. In the television receiver having a sound processing unit 500 for processing a, and a sound amplifier 520 for amplifying a voice signal processed by the sound processing unit 500 to a predetermined level and output to the speakers 522, 524, The sound signal processed by the sound processor 500 is restored. And a sound separation device 600 for separating the code by filtering the converted digital signal and the selected high and low frequencies by converting the digital signal into a digital signal.

The sound separation device 600 converts a sound signal received as an analog signal from the sound demodulator 630 and a sound demodulator 630 to demodulate the sound signal processed and output by the sound processor 500. An A / D conversion IC 640, a frequency selection unit 620 for selecting a high frequency and a low frequency by a sound command input from the TV microcomputer 200 through the sound command control unit 610, and an A / D conversion IC A decoder 650 for decoding the digital signal input at 640 and the frequency selected by the frequency selector 620, a digital filter 660 for digital filtering the signal decoded at the decoder 650, and a digital filter 660. Code separation unit 670 for separating the code data of the digital signal filtered in the) and each of the D / A to convert the code data separated by the code separation unit 670 into an analog signal and input to the sound processing unit 500 Converter unit 680 (6 82 and an error correction unit 690 for correcting an error generated in the process of converting the D / A converters 680 and 682 into analog signals.

The A / D IC 610 may include a sampling unit for multiplexing and sampling the sound demodulated by the analog signal by the sound demodulator 630, a quantization unit for dividing the amplitude of the multiplexed and sampled sound into a predetermined section, and an amplitude; An encoding unit (1,0) for encoding the separated sound is input to the decoder (650).

3 is a flowchart illustrating an operation relationship of a television receiver including a sound separation device output to a speaker according to the present invention.

Determining whether the TV is on when the power is supplied at the time set by the viewer or the timer (S301); and when the TV is turned on in step S301, the viewer watches the TV and listens to the sound output in mono ( S302, a step in which the viewer inputs sound separation data while listening to the sound output in mono in step S302 (S303), a step of checking whether the sound separation data is input in step S303 (S304), If the sound separation data is not confirmed in step S304, the sound output in mono is listened (S302). If the sound separation data is confirmed, the sound demodulation step (S305) and the demodulated analog signal in step S305 Converting to a digital signal (S306), selecting a high frequency and a low frequency by a sound command (S307), and converting the digital signal and the frequency selected in the step (S307) (S, (S308), (S309) filtering the code data decoded in step S308, separating the code data filtered in step S309 (S310), Step S311 of converting the code data separated in step S310 to an analog signal, and processing and outputting the sound converted to the analog signal in step S311, respectively (S312), and processing in step S312 In step S313, it is determined whether to end the sound that is to be terminated, and if the result of the sound processing is continued in step S313, the process returns to step S305. If the sound processing is completed, the separated sound processing ends and the mono It is shown that the step of processing the sound by the broadcast (S314).

Referring to the working relationship according to an embodiment of the present invention.

When the power is supplied and the TV is turned on at the time set for the viewer or the timer (S301), the broadcast signal transmitted from the broadcasting station is received through the tuner 100.

In the present invention, it is assumed that the broadcast signal transmitted from the broadcasting station and received by the tuner 100 is a show program.

At this time, the TV microcomputer 200 processes the contrast, bright and R, G, and B signals, which are the maximum contrast ratios of the screens for the broadcast signals received through the tuner 100, into the video processor 300 by processing the signals. .

Accordingly, the video processor 300 processes the broadcast signal processed by the TV microcomputer 200 and outputs R, G, and B signals to display an image signal on the screen of the CRT 400 so that the viewer can watch it.

In addition, the TV microcomputer 200 inputs a control signal for processing a voice signal from the broadcast signal to the sound processor 500 to process the voice signal by the sound processor 500 to output a voice signal through the sound amplifier 520. Amplified to a predetermined level and output to the speakers 522 and 524, the viewer listens to the sound through the mono broadcast while watching the image displayed on the screen of the CRT 400. (S302)

While watching the TV and listening to the sound through the mono broadcast, when the viewer inputs the sound separation data through a key input unit (not shown) to separate and listen to the sound output from the speakers 522, 524 (S303), The TV microcomputer 200 checks whether data for separating and outputting sound are input by the set program (S304).

If the sound separation data is not input as a result of the checking, the TV microcomputer 200 does not select a specific sound so that the viewer can listen to the sound of the mono broadcast through the speakers 522 and 524 (S302). )

However, when the sound separation data is confirmed by the TV microcomputer 200, the sound demodulator 630 of the sound separation apparatus 600 processes the sound processor 500 to demodulate the input sound signal.

That is, the analog signal demodulated by the sound demodulator 630 is converted into a digital signal via the A / D conversion IC 640 and input to the decoder 650 (S306).

Herein, the A / D IC 610 multiplexes and samples the sound demodulated by the sound demodulator 630 as an analog signal by the sampling unit, and divides the amplitude of the sound sampled by the quantization unit into a predetermined section. The sound having the divided amplitude is encoded (1,0) and input to the decoder 650.

When the sound signal converted into a digital signal is input to the decoder 650, the frequency selector 620 is processed by the TV microcomputer 200 through the sound command control unit 610, and the viewer receives the sound by the control signal. A high frequency and a low frequency that can be separated and listened are selected and input to the decoder 650 (S307).

That is, the decoder 650 decodes the digital signal converted by the A / D conversion IC 640 and the high frequency and the low frequency selected by the frequency selector 620 into code data to decode the input signal (S308).

Therefore, the code data decoded by the decoder 650 is filtered through the digital filter 660 (S309), and the code data filtered by the code separation unit 670 is separated from each other (S310).

Here, the code separating unit 670 separates the input code data, respectively, by separating the sound of two people, which are received through a mono broadcast and output to the rear speakers 522 and 524, so that the speaker of one side (L) For example, 522) outputs a high-pitched sound, and the other side (R) speaker (eg, 524) outputs a relatively low bass sound.

Each code data separated by the code separating unit 670 is converted into an analog signal via the D / A converters 680 and 682 and input to the sound processor 500 (S311).

In this case, the error correction unit 690 corrects an error generated when an error occurs in the sound signal converted into the analog signal by the D / A converters 680 and 682.

Thus, the sound processor 500 processes the input sound converted into an analog signal by the D / A converter 680 and 682, and outputs a high-pitched sound to one speaker 522 through the sound amplifier 520. To the other speaker 524, a relatively low bass sound is output so that the viewer can hear the separated sound while watching the video signal.

While listening to the separated sound through the speakers 522 and 524, the TV microcomputer 200 confirms whether to terminate the separated sound processing (S313).

If there is no sound processing end data input as a result of the confirmed result, the TV microcomputer 200 returns to the above-described step (S305) so that the process can be performed again. Process the sound by mono broadcasting by ending (S314).

Thus, the viewer listens to the sound in mono broadcast.

As described above, in the present invention, when watching a TV outputting sound through a mono broadcast, two people digitally process different voices during a conversation and separate them, respectively, and output them to the speakers (L) (R) attached to both sides of the viewer. Has the effect of listening to more lively sound.

Although the sound separation apparatus output to the television receiver speaker according to the embodiment of the present invention has been described above, the present invention is not limited thereto, and those skilled in the art will be able to apply and modify the same in various ways.

Claims (2)

A tuner 100 for receiving a broadcast signal transmitted from a broadcasting station, a TV microcomputer 200 for processing the signal received by the tuner 100 by a set program, and data to be processed in the TV microcomputer 200. And a memory unit 220 for storing the processed data, a video processor 300 for processing a video signal from the broadcast signal received by the tuner 100, and a video signal processed by the video processor 300. A sound processor 500 for processing a voice signal from a broadcast signal received by the tuner 100 according to the control signal of the TV microcomputer 200, a CRT 400 for displaying a screen on the screen, and the sound processor 500. In a TV equipped with a sound amplifier 520 for amplifying a voice signal processed at a predetermined level and outputting the sound signal to the speakers 522 and 524, the sound signal processed by the sound processor 500 is demodulated to a digital signal. Convert to convert A digital signal with a selected high, the sound output to the speaker, the television receiver characterized in that it comprises a sound configuration presented separation device 600 that separates a code filters the low-frequency separating device. According to claim 1, The sound separation device 600 is a sound demodulator 630 for demodulating the sound signal processed and output from the sound processor 500, and the sound received as an analog signal to the sound demodulator 630 An A / D converter IC 640 for converting a signal into a digital signal, a frequency selector 620 for selecting a high frequency and a low frequency by a sound command input from the TV microcomputer 200 through the sound command controller 610; The decoder 650 decodes the digital signal input from the A / D converter IC 640 and the frequency selected by the frequency selector 620, and the digital filter 660 digitally filters the signal decoded by the decoder 650. And a code separator 670 that separates code data of the digital signal filtered by the digital filter 660, and converts code data separated by the code separator 670 into an analog signal and inputs the same to the sound processor 500. Each one And an error correction unit 690 for correcting an error generated in the process of converting the D / A converter 680 and 682 into an analog signal by the D / A converter 680 and 682. Sound is output to the TV receiver speaker.