KR100202842B1 - The sound equalizing apparatus and method for sound multiplex television - Google Patents

Abstract

[0001] The present invention relates to a separate sound equalizing apparatus and method for a multi-audio television receiver, and more particularly, The audio signals processed by the audio processor are equalized by the control signal of the microcomputer so as to separate the different timbres from the main audio and the audio signals, A separate sound equalizer of a multi-audio television receiver including a separate sound equalizer to be input to a processing unit and a sub-audio processing unit, and an equalizing method for equalizing and outputting a corresponding tone color, When the user listens to the voice multiplex broadcasting by giving different changes to the tone of the main / By listening clearly to the main / sub audio, it is possible to double the TV viewing effect in the audio multi-mode.

Description

Separate sound equalizing apparatus and method thereof for multi-television receiver

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a multi-channel television receiver (hereinafter referred to as TV), and more particularly to a multi-channel TV receiver having a main audio and a sub- And more particularly, to a separate sound equalizing apparatus and method for a multi-television receiver.

1, the TV includes a microcomputer 200 for controlling the overall operation of the TV by the operation of the key input unit 220, a memory 240 for storing data to be processed by the microcomputer 200 A tuner 100 for receiving a broadcast signal of a channel selected by the tuning voltage outputted from the microcomputer 200 from an antenna ANT; a tuner 100 for processing a video signal of a broadcast signal received by the tuner 100; An image processor 300 for amplifying the image signal output from the image processor 300 and an image amplifier 320 for amplifying the image signal output from the image processor 300. The CRT 400, A vertical / horizontal synchronizing processing unit 340 for shifting a vertical synchronizing signal and a horizontal synchronizing signal of a video signal displayed on a screen, a CRT 400 for receiving a video signal outputted from the video amplifying unit 320 and displaying the received video signal on a screen, , And a tuner A main audio processing unit 520 for separating and processing only main audio signals (for example, Korean) from the audio signals processed by the audio processor 500, A main audio processing unit 540 for separating and processing only a sub audio signal in a processed audio signal from the processor 500 and a main / An audio amplifier 560 for amplifying the sub audio signal to a predetermined level and speakers 600 and 620 for receiving and outputting the audio signal output from the audio amplifier 560. [

When a viewer operates the key input unit 220 to select a channel to be viewed, the general multi-channel TV configured as described above generates a channel selection voltage corresponding to the selected channel and applies the selected channel selection voltage to the tuner 100 .

The tuner 100 receives a broadcast signal of a channel selected by the tuning voltage generated by the microcomputer 200 from a free space through an antenna ANT and outputs a broadcast signal to the video processor 300 and the audio processor 500 .

Thus, the image processor 300 processes only the video signal from the broadcasting signal input from the tuner 100 according to the control signal of the microcomputer 200, and supplies the processed video signal to the video amplifying unit 320.

Accordingly, the image amplifying unit 320 amplifies the image signal to a level that can be displayed on the screen of the CRT 400, and supplies the amplified image signal to the CRT 400. Accordingly, the image signal transmitted from the broadcasting station to the free space is displayed on the screen, .

At this time, the vertical / horizontal synchronization processing unit 340 deflects the image signal displayed on the screen of the CRT 400 in the vertical direction and the horizontal direction based on the vertical synchronization signal and the horizontal synchronization signal processed in the image processor 300.

The audio processor 500 processes only audio signals from the broadcasting signals input from the tuner 100 and outputs processed audio signals to the main audio processing unit 520 and the sub audio processing unit 540.

That is, the main audio processing unit 520 separates only the main audio (e.g., Korean) signal among the audio signals processed and input by the previous-stage audio processor 500, inputs the processed signal to the audio amplifying unit 560, 540 separates only a sub-audio (e.g., foreign language) signal among the audio signals processed by the previous-stage audio processor 500 and inputs the processed signal to the audio amplification unit 560.

Accordingly, the voice amplifying unit 560 amplifies the voice signal of the Korean language separated and processed by the main voice processing unit 520 and the voice signal of the foreign language separated and processed by the sub-voice processing unit 540, to the speaker 600 ) So that the viewer can simultaneously hear the main audio of Korean and the sub-audio of foreign language at the same time as the audio of the audio multiplex broadcasting.

However, in the general audio multi-channel TV described above, while watching the video displayed on the screen of the CRT 400, when the main audio of Korean and the sub audio of foreign language outputted to the speakers 600 and 620 are simultaneously received, The tone color is outputted in the same manner, which causes a disruption in the viewer's listening to the main audio and the sub audio.

In order to solve the above-described drawbacks, the present invention aims at providing a system and a method for simultaneously and simultaneously receiving a main audio and a sub audio output from a multi- And to provide a separate sound equalizing apparatus and method capable of audibly distinguishing between a sound and a sub-sound.

Another object of the present invention is to clearly distinguish a sound output from a speaker by the first object, thereby preventing a confusion when a viewer listens to a voice multiplex broadcasting.

According to an aspect of the present invention, there is provided a voice multiplexed TV in which a voice signal processed by a voice processor is equalized by a control signal of a microcomputer, and different tone colors are input to a main voice processing unit and a sub- Including sound equalizer

A separate sound equalizing device of a multi-audio television receiver, and an equalizing method of equalizing and outputting a corresponding tone color.

Brief Description of the Drawings Fig. 1 is a configuration block diagram schematically showing a general audio multi-television receiver; Fig.

FIG. 2 is a block diagram showing a voice multiplexing television receiver including a separate sound equalization device according to the present invention; FIG.

FIG. 3A is a circuit diagram showing an example of the speech equalizer 740 of FIG. 2 in detail.

3B is a circuit diagram showing an example of the speech equalizer 760 of FIG. 2 in detail.

4 is a flowchart showing a separate sound equalizing method of a multi-audio television receiver according to the present invention.

Description of the Related Art [0002]

100: Tuner 200: Microcomputer

220: key input unit 240: memory

300: Video Processor 320: Image Amplifier

340: vertical / horizontal synchronous processing unit 400: CRT (Cathode-Ray Tube)

500: sound processor 520: main audio processor

540: Sub-audio processing unit 560: Audio amplifying unit

600,620: Speaker 700: Separate sound equalizer

720: command reception and control unit 740, 760:

740-1, 760-1: filter 742: main voice memory unit

762: Sub sound memory part ANT: Antenna

Q1, Q2: transistor R1R4: resistance

C1, C2: Capacitors

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a block diagram illustrating a voice multiplexed TV including a separate sound equalizer according to the present invention.

A memory 240 for storing data to be processed by the microcomputer 200 and a memory 240 for storing data to be processed by the microcomputer 200. The microcomputer 200 controls the entire operation of the TV by the operation of the key input unit 220, A tuner 100 for receiving a broadcast signal of a channel selected by a tuning voltage from an antenna ANT; a video processor 300 for processing a video signal of a broadcast signal received by the tuner 100; A vertical synchronizing signal of the video signal displayed on the screen of the CRT 400 according to a vertical / horizontal synchronizing signal processed by the image processor 300, A CRT 400 for receiving a video signal output from the video amplifying unit 320 and displaying the video signal on a screen, a vertical synchronizing unit 340 for horizontally synchronizing the horizontal synchronizing signal, A voice for processing a voice signal of a signal A main audio processing unit 520 for separating and processing only main audio signals (e.g., Korean) in the audio signal processed by the audio processor 500; The main audio processing unit 520 and the sub audio processing unit 540 amplify main / sub audio signals processed by the main audio processing unit 520 and the sub audio processing unit 540 to a predetermined level And a speaker 600 and 620 for receiving and outputting a voice signal output from the voice amplifying unit 560. The voice multiplexing TV includes a voice amplifying unit 560, And a separate sound equalizer 700 for equalizing the sound signals processed by the sound processor 500 and inputting different sound colors to the main sound processing unit 520 and the sub sound processing unit 540, respectively.

The separate sound equalizer 700 includes a main voice memory 742 for storing a main voice tone of Korean, a sub voice memory 762 for storing a sub voice tone of a foreign language (e.g. English) The audio signal processed in the audio processor 500 by the control signal of the microcomputer 200 inputted through the control unit 720 and the main audio data stored in the main audio memory unit 742 and the sub audio memory unit 762, And a voice equalizing unit 740 (760) for reading the voice of the voice and equalizing each voice and inputting the voice to the main voice processing unit 520 and the sub-voice processing unit 540, respectively.

FIG. 3A is an exemplary circuit diagram showing the speech equalizer 740 of FIG. 2 in detail.

The speech equalizer 740 includes a filter 740-1 for filtering a specific band (e.g., 50 kHz 60 kHz) of a speech frequency (e.g., 1 kHz, 100 kHz) processed by the speech processor 500, The voltage (B) applied from the microcomputer 200 +), A resistor R1 for determining the amount of applied voltage B +) Amount and amplifies the sound tone and inputs the amplified sound to the main audio processing unit 520.

3B is a circuit diagram showing an example of the speech equalizer 760 of FIG. 2 in detail.

The speech equalizer 760 includes a filter 760-1 for filtering a specific band (for example, 40 kHz 50 kHz) of a voice frequency (for example, 1 kHz 100 kHz) processed in the voice processor 500, transistor which amplifies the sound tone negative input to the audio processing unit 540 in accordance with the resistance (R3) and the applied voltage (B ⁺⁾ amount to determine the amount of voltage (B ⁺⁾ is applied from the microcomputer 200 by the value (Q2).

The filters 740-1 and 760-1 are composed of capacitors C1 and C2 and resistors R2 and R4, respectively.

The transistors Q1 and Q2 are amplifying transistors.

FIG. 4 is a flowchart illustrating a separate sound equalizing method of a multi-audio TV according to the present invention.

A step S402 of confirming whether the TV is on, a step S402 of listening to a general voice while watching a TV broadcast when the TV is on, a step S403 of confirming whether to select the audio multi- (S404), if the voice multiplexing mode is not selected, the process returns to step S402. If voice multiplexing mode is selected, the voice multiplexing mode is executed (S404) A step S405 of judging whether or not the tones are to be differentiated in step S405; and a step S411 of outputting the main audio and the sub audio having the same timbre if the determined result is that the tones of the main audio and the sub audio are not to be equalized differently A step (S406) of receiving main audio and sub audio data for equalizing if the tone of the audio is to be differentiated, a step (S407) of outputting a control signal when main audio and sub audio data are inputted, A step S408 of amplifying the filtered and amplified voice signal to a predetermined level to change a tone color of the main audio and the sub audio, A step S410 of determining whether the tone color of the main audio and the sub audio is to be terminated if the tone color of the sub audio is changed; and if the tone color equalization of the main audio and the sub audio is not to be terminated, the process returns to the step S406 (S411) of outputting the main audio and the sub audio having the same tone color if the tone color equalization of the main audio and the sub audio is to be ended.

The operation state of the present invention is as follows.

When the viewer operates the key input unit 220 to supply power and the TV is turned on (S401), the microcomputer 200 recognizing the selected channel selects the channel selection voltage corresponding to the selected channel and outputs the selected channel selection voltage to the tuner 100 .

The tuner 100 receives a broadcast signal of a channel selected by the tuning voltage generated by the microcomputer 200 from a free space through an antenna ANT and outputs a broadcast signal to the video processor 300 and the audio processor 500 .

Thus, the image processor 300 processes only the video signal from the broadcasting signal input from the tuner 100 according to the control signal of the microcomputer 200, and supplies the processed video signal to the video amplifying unit 320.

Accordingly, the image amplifying unit 320 amplifies the image signal to a level that can be displayed on the screen of the CRT 400, and supplies the amplified image signal to the CRT 400. Accordingly, the image signal transmitted from the broadcasting station to the free space is displayed on the screen, (S402) while listening to the normal voice mode.

At this time, the vertical / horizontal synchronization processing unit 340 deflects the image signal displayed on the screen of the CRT 400 in the vertical direction and the horizontal direction based on the vertical synchronization signal and the horizontal synchronization signal processed in the image processor 300.

During the TV viewing, the microcomputer 200 checks whether there is a data input for selecting a voice multiplexing mode through the key input unit 220 in step S403. If the key for selecting the voice multiplexing mode of the key input unit 220 is not turned on, If the multi-mode is not selected, the general voice mode is executed so that the viewer can listen to the general voice mode while watching the TV.

If data for selecting a voice multi-mode is input through the key input unit 220 and the voice multi-mode is selected, the microcomputer 200 executes voice multi-mode (S404) It is determined whether the tones of the main audio (for example, Korean) and the sub-audio (for example, foreign language) of the audio multimode output to the speaker 620 are differentiated in step S405.

If the determined result is that the tone of the main audio and the tone of the sub audio are not to be equalized, the microcomputer 200 transmits the audio processed by the audio processing unit 500 to the main audio processing unit 520 and the sub audio processing unit 540, And the audio signal is amplified at a predetermined level via the audio amplifying unit 560 to output the main audio and the sub audio having the same tone color through the speakers 600 and 620 at step S411 .

However, if it is determined in step S405 that the tones of the main audio and the sub audio are to be differentiated, the main / sub audio data for equalizing the tones of the main / sub audio to each other through the key input unit 220 is inputted (S406) And inputs a control signal to the speech equalizing units 740 and 760 via the command receiving and control unit 720 (S407).

When the control signal is input, the speech equalizers 740 and 760 filter the speech frequency processed in the speech processor 500 (S408) to amplify only the speech signal of a specific band. 3A, when the control signal is inputted, the voice equalizer 740 reads the data related to Korean stored in the main voice memory unit 742 and outputs the voice processed in the voice processor 500 The frequency of a specific band (for example, 50 kHz 60 kHz) of a frequency (for example, 1 kHz, 100 kHz) is filtered through a filter 740 - 1 composed of a capacitor C 1 and a resistor R 2, The voltage (B +) ≪ / RTI >

Therefore, the voltage (B) applied from the microcomputer 200 via the resistor Rl by the value filtered by the filter 740-1 The transistor Q1 amplifies the sound tone and inputs it to the main audio processing unit 520. [

3B, when the control signal is input, the voice equalizer 760 reads data related to a foreign language (e.g., English) stored in the sub-voice memory 762 and outputs the voice frequency processed by the voice processor 500 The frequency of a specific band (for example, 40 kHz, 50 kHz) of the frequency band (for example, 1 kHz, 100 kHz) is filtered through a filter 760-1 composed of a capacitor C2 and a resistor R4, The voltage B +) ≪ / RTI >

Accordingly, the voltage (B) applied from the microcomputer 200 via the resistor R3 by the value filtered by the filter 760-1 The transistor Q2 amplifies the sound tones and inputs them to the sub-audio processing unit 540. [

Here, the transistors Q1 and Q2 are amplifying transistors.

Therefore, the main audio processing unit 520 and the sub-audio processing unit 540 respectively process the audio signals amplified by the timbres in the respective audio equalization units 740 and 760 and output the processed audio signals to the audio amplifying unit 560 at a predetermined level And the tones of the main audio and the sub audio are amplified (S409) and output to the speakers 600 and 620, so that the viewer can listen to the main audio and the sub audio which are different in tone color.

When the main / sub audio having changed the tone of the main audio and the sub audio is output to the speakers 600 and 620, the microcomputer 200 determines whether to terminate the tone color for changing the tone of the main audio and the sub audio S410).

If it is determined that the tone color equalization of the main audio and the sub-audio is not to be terminated due to no input of the tone color equalization end key of the determined result key input unit 220, the microcomputer 200 returns to step S406 and repeats the above- .

However, the microcomputer 200 determines whether the tone color equalization for changing the tone colors of the main audio and the sub audio is to be terminated (S410) and the tone color equalization end key input of the key input unit 220 is input, The control unit 720 cuts off the control signal output from the command receiving and control unit 720 and does not operate the voice equalizers 740 and 760 so that the voice data processed by the voice processor 500 is output to the main voice processing unit 520 and 540. The main and sub audio are processed and amplified to a predetermined level by the audio amplifying unit 560 to output the main audio and the sub audio having the same tone color to the speakers 600 and 620 Can listen to the same main / sub audio.

As described above, according to the present invention, when a main audio and a sub audio output from a voice multiplexed TV are simultaneously output to a loudspeaker, By listening clearly to the subordinate speech, it is possible to multiply the effect of watching the TV in the audio multi-mode.

Although the present invention has been described with respect to a separate sound equalizing apparatus and method for a multi-audio television receiver as described in the claims, the present invention is not limited thereto, and various applications and modifications may be made by those skilled in the art will be.

Claims (5)

A tuner 200 for receiving a broadcast signal of a channel selected by the tuning voltage outputted from the microcomputer 200 from an antenna ANT, a microcomputer 200 for controlling the entire operation of the TV by the operation of the key input unit 220, An image processor 300 for processing a video signal of a broadcast signal received by the tuner 100, an image amplifier 320 for amplifying a video signal output from the image processor 300, A vertical / horizontal synchronization processing unit 340 for deflecting a vertical synchronization signal and a horizontal synchronization signal of a video signal displayed on the screen of the CRT 400 according to a vertical / horizontal synchronization signal processed in the image processor 300, A CRT 400 for receiving a video signal output from the tuner 100 and displaying the received video signal on a screen, a voice processor 500 for processing a voice signal of a broadcast signal received by the tuner 100, ) In the processed voice signal, A sub audio processing unit 540 for separating and processing only a sub audio signal from the audio signal processed by the audio processor 500; A voice amplifying unit 560 for amplifying main / sub audio signals processed by the sub audio processing unit 540 to a predetermined level, a speaker 600 for receiving and outputting the audio signals outputted from the audio amplifying unit 560 620, the audio signal processed by the audio processor 500 is equalized by the control signal of the microcomputer 200, and the different sound colors are supplied to the main audio processing unit 520 and the sub audio processing unit 540 And a separate sound equalizer 700 for inputting a sound signal to the sound synthesizer 700. The separate sound equalizer of the audio multi- The apparatus as set forth in claim 1, wherein the separate sound equalizer (700) comprises a main voice memory unit (742) for storing a main voice tone of Korean, a sub voice memory unit (762) for storing a sub voice tone of a foreign language, The audio signal processed by the audio processor 500 is supplied to the main audio memory unit 742 and the main audio memory unit 762 by the control signal of the microcomputer 200 inputted through the receiving and controlling unit 720, And a sound equalizing unit 740 (760) for reading the tones of the sub-audio, respectively, and inputting them to the main audio processing unit 520 and the sub-audio processing unit 540, respectively, Device. The apparatus of claim 2, wherein the speech equalizers (740) and (760) include filters (740-1) and (760-1) that filter specific bands of speech frequencies processed by the speech processor (500) (B ⁺ ) applied from the microcomputer 200 and amplifies the sound tones according to the applied voltage (B ⁺ ) and supplies the amplified sound tones to the main audio processing unit 520 and the sub audio And a transistor (Q1) (Q2) for inputting to the processing unit (540), respectively. 4. The audio multi-television receiver according to claim 3, wherein the filters (740-1) and (760-1) comprise capacitors (C1) and (C2) Equalization device. A step S402 of confirming whether the TV is on, a step S402 of listening to a general voice while watching a TV broadcast when the TV is on, a step S403 of confirming whether to select the audio multi- And returning to step S402 if the verified audio multi-mode is not selected, and executing a voice multi-mode if the audio multi-mode is selected, wherein the audio multi- A step (S405) of determining whether the tone of the main audio and the sub audio is to be equalized during the execution of the mode, and a step of inputting main / sub audio data for equalizing the tone of the main / A step S406 of outputting a control signal when main / sub audio data is input, a step S408 of filtering a voice frequency of a specific band by an input control signal, (S409) of amplifying the tone signal of the main / sub audio by amplifying the tone signal of the main / sub audio by changing the tone of the main / sub audio, a step S410 , And if it is determined that the tone color equalization of the main / sub audio is not to be terminated, the process returns to step S406, and if the tone color equalization of the main / sub audio is to be ended, a step S411 ) Of the audio multi-television receiver.