KR980013333A - Sound separation device output to TV receiver speaker - Google Patents

Abstract

The present invention relates to a sound separating apparatus for outputting sound to a speaker of a television set for digitally processing different sounds at the time of conversation between two people on a TV and outputting the separated sounds to speakers, In order to solve the drawback that two speakers are unable to listen to a live sound by simultaneously outputting sound by speakers installed on both sides of a TV during a conversation, the sound processing unit 500 demodulates the sound signal processed by the sound processing unit 500 A sound separating device 600 for converting a digital signal into a digital signal and separating the converted digital signal and selected high and low frequencies to separate the code is included in the conventional TV so that the viewer can listen to a more lively sound.

Description

Sound separation device 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), and more particularly to a television receiver in which when two people watch a TV on which sound is output by a mono broadcast, And outputting the sound output to the speaker.

1, a television receiver includes a tuner 100 for receiving a broadcast signal transmitted from a broadcasting station, a TV microcomputer 100 for processing a signal received by the tuner 100 by a set program, A memory unit 220 for storing data and processed data to be processed by the TV microcomputer 200 and a memory unit 220 for storing video signals R, G, and B in the broadcast signal received by the tuner 100, A CRT 400 for displaying a video signal processed by the video processor unit 300 on the screen and a tuner 100 for controlling the tuner 100 by a control signal of the TV microcomputer 200. [ A sound processing unit 500 for processing a voice signal among the received broadcast signals and a sound amplifier 520 for amplifying the voice signal processed by the sound processing unit 500 to a predetermined level and outputting the amplified voice signal to speakers 522 and 524 .

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

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

Accordingly, the video processor unit 300 processes a signal input from the TV microcomputer 200, outputs a stable video signal, and displays the stable video signal on the screen of the CRT 400.

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 processing unit 500 so that the sound processing unit 500 processes the voice signal, 520 to output the audio signal through the speakers 522, 524 so that the viewer can listen to the audio while watching the video displayed on the CRT 400 screen.

However, when the above-mentioned general television receiver receives a sound from a "mono" broadcast, when the two people talk on the TV, the sound is outputted simultaneously by the speakers attached to both sides of the TV so that the viewer can listen to the live sound There was no fault.

The object of the present invention is to solve the above-mentioned drawbacks. For the purpose of this invention, when watching a TV on which sound is output by a "mono" broadcast, two people digitally process different sounds during conversation, And outputs the sound to the speakers L and R, respectively, so that the viewer can listen to a more lively sound.

In order to realize the present invention having the above-described object, a sound separating apparatus for separating a code by demodulating a sound signal processed by the sound processing unit 500 and converting the digital signal into a digital signal and filtering the selected high and low frequencies 600) is included in the existing TV.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram schematically showing a general television receiver; Fig.

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

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

DESCRIPTION OF THE REFERENCE NUMERALS

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 separator 610: Sound command controller

620: Frequency selection unit 630: Sound demodulation unit

640: A / D conversion IC 650: Decoder

660: Digital filter 670: Code separation section

680, 682: D / A converter 690:

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

A tuner 100 for receiving broadcast signals transmitted from a broadcasting station; a TV microcomputer 200 for generally processing signals received by the tuner 100 by a set program; A video processor 300 for processing the video signals R, G and B in the broadcast signal received by the tuner 100; A CRT 400 for displaying video signals R, G and B processed by the TV microcomputer 300 on the screen and a CRT 400 for outputting audio signals among the broadcast signals received by the tuner 100, And a sound amplifier 520 for amplifying the sound signal processed by the sound processor 500 to a predetermined level and outputting the amplified sound signal to the speakers 522 and 524, The sound processing unit 500 processes the sound signal And selected by the digital signal and converts into a digital signal, and configured to be further comprising a sound separation device 600 that separates a code to filter low frequencies.

The sound separating apparatus 600 includes a sound demodulating unit 630 for demodulating a sound signal processed and output by the sound processing unit 500, a sound demodulating unit 630 for converting the sound signal received as an analog signal into a digital signal A frequency selector 620 for selecting a high frequency and a low frequency according to a sound command input from the TV microcomputer 200 through the sound command controller 610 and an A / A decoder 650 for decoding the digital signal input from the frequency converter 640 and the frequency selected by the frequency selector 620, a digital filter 660 for digitally filtering the signal decoded by the decoder 650, A code separator 670 for separating the code data of the digital signal filtered by the D / A converter 670, a code separator 670 for separating the code data separated by the code separator 670 into analog signals, The converting unit 680 (6 And an error corrector 690 for correcting an error occurring in the process of converting the analog signal into the analog signal in the D / A converters 680 and 682.

The A / D IC 610 includes a sampling unit for multiplexing and sampling a sound demodulated into an analog signal by the sound demodulation unit 630, a quantization unit for dividing the amplitude of the multiplexed sampled sound into a predetermined interval, And a coding unit for coding (1, 0) the divided sound and inputting the divided sound to the decoder 650.

FIG. 3 is a flowchart showing the operation of a television receiver including a sound separating apparatus for outputting to a speaker according to the present invention.

A step S301 of judging whether or not the TV is turned on when power is supplied at a time set in the viewer or the timer; and a step S303 of judging whether the TV is turned on when the TV is turned on in the step S301; A step S302 for the viewer to input the sound separation data during the listening of the sound outputted as "mono" in the step S302, and a step S303 for checking whether the sound separation data is inputted in the step S303 (Step S304); and if the sound separation data is not confirmed in step S304, the sound output as "mono" is searched (step S302) A step S306 of converting the analog signal demodulated in the step S305 into a digital signal, a step S307 of selecting a high frequency and a low frequency by a sound instruction, a step S307 of converting the digital signal converted in the step S306, ) Selected week A step S308 of decoding the code data decoded in step S308, a step S309 of filtering the decoded code data in step S308, and a step of separating the code data filtered in step S309, respectively A step S312 of converting the code data separated in step S310 into an analog signal, a step S312 of processing and outputting the sound converted into the analog signal in step S311, (S313) confirming whether to end the sound processed in step S312; and returning to step S305 if the result sound processing confirmed in step S313 is to be continued. If the sound processing is to be completed, And processing the sound in the "mono" broadcasting (S314) by completing the processing.

The operational relationship according to one embodiment of the present invention will be described as follows.

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

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

At this time, the TV microcomputer 200 processes the contrast, bright, R, G, and B signals, which are the maximum contrast ratio of the screen for the broadcast signal received through the tuner 100, by the set program and inputs the signals to the video processor unit 300 .

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

In addition, the TV microcomputer 200 inputs a control signal for processing a voice signal in the broadcast signal to the sound processing unit 500, processes the voice signal by the sound processing unit 500, and outputs the voice signal through the sound amplifier 520 And outputs it to the speakers 522 and 524 so that the viewer can listen to the sound in the "mono" broadcast while watching the image displayed on the screen of the CRT 400. (S302)

When the user sees the sound separation data through a key input unit (not shown) in order to separate and listen to the sound output from the speakers 522 and 524 while the user is listening to the sound through the "mono" ), The TV microcomputer 200 confirms whether data for separating and outputting the sound is input by the set program (S304)

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

However, if the sound separation data is confirmed in the TV microcomputer 200, the sound demodulation unit 630 of the sound separation apparatus 600 processes the sound signal processed by the sound processing unit 500 and demodulates the 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)

Here, the A / D IC 610 multiplexes and samples the sound demodulated into an analog signal by the sound demodulator 630 in the sampling unit, divides the amplitude of the sound sampled through the quantization unit into a predetermined section, (1, 0), and inputs the sound to the decoder 650. [0051]

When the sound signal converted into the digital signal is input to the decoder 650, the frequency selector 620 processes the sound through the sound command controller 610 and receives the control signal from the TV microcomputer 200 And selects a high frequency and a low frequency that can be separately heard 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 and low frequencies selected by the frequency selector 620 into code data and decodes 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 separated by the code separating unit 670 is separated (S310)

Here, the code separating unit 670 separates the inputted code data by separating the sounds of two persons, which are received as "mono" broadcasts and output to the rear speakers 522 and 524, (E.g., 522) to output a high-pitched sound while the other (R) speaker (e.g., 524) can output a relatively low-pitched sound.

The 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 processing unit 500. In operation S311,

At this time, the error corrector 690 corrects an error that occurs when an error occurs in the sound signal converted into the analog signal by the D / A converters 680 and 682. [

Then, the sound processing unit 500 processes the input sound by converting the analog signal into analog signals in the D / A converters 680 and 682, and outputs a high-pitched sound to the one speaker 522 through the sound amplifier 520 And outputs a relatively low-bass sound to the other speaker 524 so that the viewer can listen to the separated sound while watching the video signal (S312)

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 it is determined that there is no input of sound processing end data, the TV microcomputer 200 returns to the step S305 to perform the sound processing again. If the sound processing is terminated, To process the sound in the "mono" broadcasting (S314)

Therefore, the viewer listens to the sound by "mono" broadcasting.

As described above, according to the present invention, when watching a TV on which a sound is output by a "mono" broadcast, two persons digitally process different sounds at the time of conversation and separate them and output them to a speaker (L) So that the viewer can listen to a more lively sound.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

Claims (2)

A tuner 100 for receiving a broadcast signal transmitted from a broadcasting station; a TV microcomputer 200 for processing a signal received by the tuner 100 by a set program; A video processor 300 for processing a video signal in a broadcast signal received by the tuner 100, and a video processor 300 for processing the video signal processed by the video processor 300 A sound processing unit 500 for processing a sound signal from a broadcast signal received by the tuner 100 according to a control signal of the TV microcomputer 200, And a sound amplifier 520 for amplifying the processed voice signal to a predetermined level and outputting the amplified processed signal to speakers 522 and 524. The TV demodulates and converts the sound signal processed by the sound processing unit 500 into a digital signal Convert to 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. The sound demultiplexer according to claim 1, wherein the sound separating apparatus includes a sound demodulator for demodulating the sound signal processed and output by the sound processor, A frequency selector 620 for selecting a high frequency and a low frequency according to a sound command input from the TV microcomputer 200 through the sound command controller 610, A decoder 650 for decoding a digital signal input from the A / D conversion IC 640 and a frequency selected by the frequency selector 620, a digital filter 660 for digitally filtering the signal decoded by the decoder 650, A code separator 670 for separating the code data of the digital signal filtered by the digital filter 660 and a code separator 670 for converting the code data separated by the code separator 670 into an analog signal and inputting the analog signal to the sound processor 500 Respectively And an error corrector 690 for correcting an error occurring in the process of converting into analog signals in the D / A converters 680 and 682 and the D / A converters 680 and 682, A sound separation device outputting to a television receiver speaker.