KR20000028148A - Multi channel sound system on tv - Google Patents

Abstract

PURPOSE: A multi channel sound system on TV is provided to give convenience to a user who studies foreign languages, by using multiplex transmission broadcasting, and by differentiating delay time of a sub voice according to a language of the sub voice, after outputting the sub voice by delaying the sub voice for regular time in a multiplex mode of the multiplex transmission broadcasting. CONSTITUTION: A multi channel sound system on TV comprises a main voice processor(90)/a sub voice processor(100), a voice amplifier(110), a KBPS(Korea Broadcasting Program System) decoder(170), an A/D(Analog/Digital) converter(181), a memory(182), and a D/A(Digital/Analog) converter(183). The main voice/sub voice processors output a main voice signal and a sub voice signal of multiplex transmission broadcasting by demodulating the signals, respectively. The voice amplifier selectively amplifies the main voice/the sub voice/the main voice + the sub voice by a control signal, and presents the amplified voices to outside through speakers(120a,120b). The KBPS decoder decodes a KBPS signal which is one of a broadcasting system supplying an extended data service. The A/D converter converts a sub voice signal outputted in the sub voice processor into a digital signal by a sub voice delayer(180). The memory stores the converted sub voice signal. The D/A converter converts the digital signal outputted from the memory into an analog signal, and outputs the analog signal to the voice amplifier.

Description

A television with bilingual broadcasting function

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voice multiple television having a KBPS (Korea Broadcasting Program System) decoder. More particularly, the present invention relates to a voice multiple television outputting a delayed sub-audio when a multiple mode is selected in a voice multiple broadcast.

In general, televisions with voice multi-function are used in addition to the languages in which broadcasters use certain programs (e.g. movies, news) in order to satisfy the desire of modern people to easily acquire foreign language learning through television broadcasting. Corresponding to the additional transmission of other languages, it is possible to selectively listen to the desired language in accordance with the user's request, the configuration is as shown in Figure 1 attached.

That is, the tuner unit 50 extracts only the frequency band of the channel tuned by the user by tuning the radio frequency signal received through the antenna ANT from airwaves, and the tuner unit 50 according to the local oscillation signal input. The IF detector 60 detects an intermediate frequency in the frequency band signal of the channel selected through the channel, and the image intermediate frequency signal PIF and the audio intermediate frequency signal SIF from the signal output from the IF detector 60. A voice signal is separated into a main voice and a sub-audio from a P / S splitter 70 to be separated and a voice intermediate frequency signal SIF output from the P / S splitter 70, and the received voice of the broadcast The voice detector 80 outputs information on whether or not to the microprocessor 40, and the main audio processor 90 demodulates and outputs the main audio signal and the sub-audio signal input from the voice detector 80, respectively. And the sub-audio processing unit 100 and the main voice / The audio amplifier unit 110 selectively amplifies the sub-audio / main audio + sub-audio and expresses it to the outside through the speakers 120a and 120b, and the image intermediate frequency signal output from the P / S separation unit 70 ( An image detector 130 for separating an image signal from a PIF, a luminance signal and a color signal are separated from the image signal of the image detector 130, and a color band is extracted from the color signal, and then demodulated and then demodulated. An on-screen display (OSD) unit for outputting a signal (character / graphic) necessary for controlling the operation of an input television and overlapping predetermined information on a screen of the CRT 160 by transferring the image processing unit 140 to be transmitted to 150, a KBPS decoder 170 that decodes a KBPS signal, which is one of broadcasting systems providing an extended data service, and various operation modes (tuning, volume control, screen control, external device mode switching, etc.) of the television; The key panel 10 for selecting and the above-mentioned Tel A remote controller 20 for remotely controlling various operation modes of the vision, a remote controller key signal input unit 30 for receiving a signal output from the remote controller 20 and outputting a signal corresponding thereto, and the key panel 10 or It includes a microprocessor 40 for controlling the overall operation of the television control unit according to the signal output from the remote control key signal input unit 30.

The operation of such a television is explained as follows.

When the user selects a broadcast channel using the key panel 10 or the remote controller 20, the microprocessor 40 outputs a corresponding tuning voltage to the tuner unit 50 to tune the corresponding channel. As described above, in the broadcast signal of the broadcast channel tuned by the tuner unit 50, an intermediate frequency is detected from the broadcast signal through the IF detector 60, and the voice intermediate frequency is passed through the P / S separation unit 70. The signal SIF and the image intermediate frequency signal PIF are separated.

The voice intermediate frequency signal (SIF) output from the P / S separation unit 70 passes through the voice detector 80 and is divided into a main audio signal (eg, Korean) and a sub-audio signal (eg, a foreign language). After the main audio processing unit 90 and the sub-audio processing unit 100 undergo a predetermined processing process, the main audio processing unit 90 and the sub-audio processing unit 100 output the audio processing unit 110 to the voice amplification unit 110. Then, the voice amplifier 110 selects only one of the signals input by the control signal of the microprocessor 40 (main audio / sub audio) or selects a plurality of signals (main audio + sub audio) to set the volume. Amplified by the speaker 120a, and outputs through the speaker (120a, 120b).

The control signal output to the voice amplifier 110 is output by the microprocessor 40 when the user selects the main audio mode, the sub audio mode or the multi mode through the key panel 10 or the remote controller 20. It is a signal.

In addition, the image intermediate frequency signal (PIF) output from the P / S separation unit 70 passes through the image detector 130 to detect an image signal, and the image processor 140 passes a predetermined process to perform the CRT 160. ) Is output.

Meanwhile, the television displays a menu screen for setting the function of the television, channel change information, volume change information, and input signal (RF or AV input) change information in the form of characters or figures on an image screen displayed by the CRT 160. It is equipped with OSD function, and OSD function displays the corresponding character screen on the background of the displayed image screen or displays the corresponding character screen on the blue-back image screen. This is a very useful feature to make it easy to recognize.

However, the above-described conventional TVs with multiple voice functions are outputted to the left and right speakers at the same time when the viewer is watching in the multi-mode mode, and as a result, the main voice and the sub-audio are mixed to the viewer. Since it sounds as if there was a problem that is not effective when watching in multiple modes for foreign language learning.

Accordingly, in the present invention, when a viewer views a voice multiple broadcast in a multi-mode, the present invention seeks to find a way to listen to the main voice and the sub-audio by spacing the output of the main voice and the sub-audio.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. The present invention is to output a delayed sub-voice for a predetermined time in a multiple mode of a voice-multi-broadcast, and to change the delay time of the sub-audio depending on the sub-language language. The purpose is to provide television.

1 is a block diagram of a television with general voice multiplexing;

2 is a block diagram illustrating a configuration of a voice multiple television according to an embodiment of the present invention.

3 is a flowchart illustrating a voice output process of a voice multiple broadcast according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10 key panel 20 remote control

30: remote control key signal input unit 40: microprocessor

50: tuner 60: IF detector

70: P / S separation unit 80: voice detector

90: main audio processing unit 100: sub-audio processing unit

110: voice amplifier 120a, 120b: speaker

130: image detector 140: image processor

150: OSD unit 160: CRT

170: KBPS decoder 180: negative speech delay unit

181: A / D converter 182: memory

183: D / A Converter

According to an aspect of the present invention, a voice multiple television (TV) having a decoder of KBPS, which is one of broadcasting systems for providing data services, is controlled by a microprocessor, and then stores a sub-audio under a control of the microprocessor. Characterized in that it further comprises a negative delay means for outputting later.

In addition, the microprocessor determines whether the viewer selects the multi-mode when the voice is multicast, determines the language of the sub-audio, determines a delay time corresponding to the sub-language language, and then after the determined delay time elapses. It characterized in that for controlling the component to output.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The configuration of the television employed in the embodiment of the present invention is as shown in FIG. That is, the key panel 10, the remote controller 20, the remote controller key signal input unit 30, the microprocessor 40, the tuner unit 50, the IF detector 60, the P / S separator 70, and the voice. The detector 80, the main / sub audio processor 90 and 100, the audio amplifier 110, the speaker 120a and 120b, the image detector 130, and the image processor 140 and the OSD unit 150. In the conventional voice multi-television television composed of the CRT 160 and the KBPS decoder 170, the sub-audio output from the sub-voice processing unit 100 is stored under the control of the microprocessor 40, and then the voice is output after a predetermined time. Further comprising a negative speech delay unit 180 for outputting to the amplifier 110, the negative speech delay unit 180 A / D for converting the negative audio signal output from the negative audio processing unit 100 to a digital signal A converter 181, a memory 182 for storing the negative audio signal converted into a digital signal, and a D / A converter 183 for converting an analog signal from a digital signal output from the memory 182; It is configured to include.

In such a configuration, the key panel 10 or the remote controller 20 is an input means for operating the television, and includes a volume up / down key for volume control and a predetermined key (menu key, image quality control key, Remote control unit 20 having a plurality of keys including a direction key, a number key), a key for sound quality setting, and a key for image quality setting, and outputs a key signal corresponding to a user's key operation, and is typically remotely inputable. A key signal corresponding to a key operation is transmitted on an infrared carrier using a remote controller, and the remote controller key signal input unit 30 provided in the television body demodulates, detects, and amplifies the received infrared carrier to be described later. Is applied.

In addition, the microprocessor 40 controls the overall operation of the television based on the key signal from the key panel 10 or the remote controller 20, and in particular, the voice multicast broadcasting in the broadcasting information detected and output by the KBPS decoder 170. The sub-language language is determined by determining the sub-language language of the multi-mode, and controls the sub-audio delay unit 180 and the voice amplifier 110 to output the sub-audio after the determined delay time elapses.

The tuner unit 50 outputs a broadcast signal received by being tuned to a channel corresponding to the control of the microprocessor 40.

Meanwhile, the main audio processing unit 90 and the sub audio processing unit 100 are received by the tuner unit 50 and applied through the IF detector 60, the P / S separation unit 70, and the voice detector 80. The main voice and the sub-audio are respectively output to the voice amplifier 110, and the voice amplifier 110 selects one of the main voice mode, the sub-voice mode, and the multi-mode by the control signal of the microprocessor 40, Amplifies the audio signal to a predetermined volume and outputs it to the loudspeakers 120a and 120b.

At this time, unlike the conventional mode, the sub-audio delay unit 100 outputs the sub-audio after delaying the sub-audio for a predetermined time under the control of the microprocessor 40 described above. In the unit 100, the A / D converter 181 converts the sub-audio, which is an analog signal input from the sub-audio processing unit 100, into a digital signal and stores the digital signal in the memory 182, and after a predetermined time, the memory 182. The negative signal of the digital signal output from the D / A converter 183 may be converted into an analog signal and output to the voice amplifier 110.

The image processor 140 processes the image signal received from the tuner unit 50 and applied through the IF detector 60, the P / S separation unit 70, and the image detector 130 into a displayable signal, thereby providing a CRT. Output to 160.

In addition, the OSD unit 150 is a character screen display means for synthesizing an OSD text signal corresponding to the control of the microprocessor 40 to an image signal output from the image processor 140 and outputting the synthesized OSD text signal to the CRT 160. But not the timing unit that determines the horizontal / vertical position of the OSD, the character ROM to save and export the OSD text font, the ROM to store the program to control the OSD text display, and the program to control the OSD text display control. And a display generator for outputting an RGB signal for displaying OSD characters and a vertical blanking signal based on a control signal for OSD character size conversion and OSD character type selection from the microprocessor 40.

The KBPS decoder 170 extracts data added to the broadcast signal received from the tuner 50 and outputs the data to the microprocessor 40. The KBPS decoder 170 is a component that decodes a KBPS signal, which is one of broadcast systems providing an extended data service. In addition, KBPS digitally records data for broadcast programs and scheduled recording, such as channels, program genres (eg, news, drama, sports, etc.), broadcast start / end times, audience ratings, and standard time data on broadcast signals. By converting the signal into an arbitrary horizontal line during the vertical blanking interval (VBI), the signal is decoded by a KBPS decoder on the image receiving device side to perform a broadcast program reservation recording function, and the like. To help.

Next, a description will be given in detail with reference to the flowchart of FIG. 3, which attaches a voice output process of voice multiple broadcast in the voice multiple television of the present invention having the above-described configuration.

When the viewer selects a desired channel, the microprocessor 40 outputs a control signal to each component so that the viewer can watch the broadcast of the corresponding channel. In this case, in the case of the voice multiple broadcast, in order to control the voice signal output to the speakers 120a and 120b, it is first determined whether the broadcast received from the data input from the voice detector 80 is the voice multiple broadcast (S100).

If the received broadcast is multi-voice, it is determined whether the viewer selects the multi-mode, and if the multi-mode is not selected, the voice of the corresponding voice mode is output (S110 and S120). That is, when the voice mode is not selected, the main voice is output, and when the sub voice mode is selected, the sub voice is output through the speakers 120a and 120b.

However, when the viewer selects the multi-mode in step S110, the following steps are performed in order to delay and output the sub-voice for a predetermined time. That is, the microprocessor 40 determines the language of the sub-audio of the voice multiple broadcast from the broadcast information detected by the KBPS decoder 170, and determines a preset delay time for the language (S130, S140). That is, it determines whether the sub-language language is a foreign language such as English, French, German, Chinese, or Japanese, and sets a delay time of each sub-language language. For example, English is 1 minute and Chinese is 30. Can be set in seconds.

In addition, a menu may be provided to allow the viewer to set a delay time.

When the delay time is determined, the microprocessor 40 applies a control signal to the sub-audio delay unit 180 and the voice amplifier 110 to output the sub-audio after the delay time, and thus the sub-audio delay unit 180. The digital converter converts the negative audio signal stored in the memory 182 through the D / A converter 183 and then outputs the analog audio signal to the voice amplifier 110. Then, the voice amplifier 110 amplifies the signal input from the sub-audio delay unit 180 and outputs it to one side of the speaker so that the viewer can hear the sub-audio after a predetermined time delay.

As described above, the present invention has an effect of providing convenience to a user who learns a foreign language using voice multiple broadcasting by outputting a delayed sub-voice by a time set according to a language in the multiple mode of voice multiple broadcasting.

While the invention has been shown and described with respect to particular embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention as set forth in the claims. Anyone can see it easily.

Claims (2)

The main audio processing unit 90 and the sub audio processing unit 100 for demodulating and outputting the main audio signal and the sub audio signal of the voice multiple broadcasting respectively, and the main audio / sub audio / main audio + sub audio selectively by control signals. And a voice amplification unit 110 that amplifies and expresses externally through the speakers 120a and 120b, and a KBPS decoder 170 that decodes a KBPS signal, which is one of a broadcasting system that provides an extended data service. In the audio multiple television whose operation is controlled by 40, And further comprising a negative speech delay unit 180 for storing the negative speech output from the negative speech processor 100 under the control of the microprocessor 40 and then outputting the negative speech to the speech amplifier 110 after a predetermined time. Voice multiple television, characterized in that. The method of claim 1, The A / D converter 181 converts the sub-audio signal output from the sub-voice processing unit 100 into a digital signal, and the memory 182 storing the sub-audio signal converted into a digital signal. And a D / A converter (183) for converting the digital signal output from the memory (182) to an audio amplification unit (110).