KR100305320B1 - Sound control method in the television with bilingual broadcasting function - Google Patents

Abstract

According to the present invention, in case of repeating the switching to the main voice mode more than a predetermined number of times while watching the voice multiple broadcast in the sub-voice mode on the voice multi-television television, the main voice is stored and the voice recognition is performed in units of one sentence on the stored main voice OSD. The present invention relates to a voice multiple television output as text and a voice control method thereof.

The present invention provides a process for determining whether the voice is multicast, if the voice is multicast, storing the main voice, counting the number of switching between the main / sub-audio mode, and the main / sub-audio mode switching count value is more than the reference value And determining whether the main / sub audio mode switching count is greater than or equal to the reference value. By performing the process of outputting OSD characters in units of one sentence, it provides convenience for a user learning a foreign language using voice multiple broadcasting.

Description

SOUND CONTROL METHOD IN THE TELEVISION WITH BILINGUAL BROADCASTING FUNCTION}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television having a voice multiple function. In detail, the present invention relates to a main voice in which the main voice is stored and stored in the main voice when the switching to the main voice mode is repeated for a predetermined number of times while watching in the sub voice mode. The present invention relates to a voice control method for multi-television television, which performs voice recognition and outputs OSD text in units of one sentence.

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 has an OSD function.

The 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, so that the user can easily recognize the current state when performing each function. This is a very useful feature.

When a viewer wants to learn a foreign language using voice multiple broadcasting in a TV having a conventional voice multiplexing function, the viewer watches in a sub-voice mode (foreign language). There was a hassle to switch to main voice mode.

Therefore, the present invention seeks to find a way to make the user recognize the contents of the main voice corresponding to the voice output as the sub-audio when watching the voice multiple broadcast in the sub-audio mode.

The present invention has been made to solve the above-described conventional problems, when the main voice is stored when watching the voice multiple broadcast, and the user repeats the switching to the main voice mode for a certain number of times while watching in the sub-audio mode It is an object of the present invention to provide a voice control method in a voice multiple television that outputs the main voice as OSD text by performing voice recognition on the stored main voice.

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

FIG. 4A is a detailed flowchart of the main / sub audio mode switch count process of FIG. 3.

4B is a detailed flowchart of a process of outputting the main voice of FIG. 3 as an OSD character.

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: voice storage unit

190: speech recognition unit

The voice control method of the voice multiple broadcast according to the present invention includes the steps of determining whether the voice is multicast, the process of storing the main voice, the process of counting the number of times the main / sub-audio mode switching, and the main / sub Determining whether the voice change count value is greater than or equal to the reference value; determining whether the voice change count value is greater than or equal to the reference value; determining whether the voice change count value is greater than or equal to the reference value; It is characterized in that the process of outputting the main voice as OSD characters by performing a speech recognition for each sentence.

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

The configuration of the television according to 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 multiplex television comprising a CRT (160) and KBPS decoder 170, the voice storage unit for storing the main audio output from the main audio processing unit 90 under the control of the microprocessor ( 180 and a signal for performing main speech recognition on the main voice input from the voice storage unit 180 and outputting the result to the OSD unit 150, and notifying the microprocessor 40 of the sentence after voice recognition for a sentence. It is configured to further include a voice recognition unit 190 for outputting.

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.

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. In particular, the microprocessor 40 controls the main / sub audio in the case of watching a voice multiple broadcast with sub audio. When the number of times of mode switching is counted and the main / sub audio switching is repeated for a predetermined number of times, the voice storage unit 180, the voice recognition unit 190, and the OSD are output so that the main voice is output as OSD characters in one sentence unit while the sub voice is output. The unit 150 is controlled.

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 audio signal and the sub-audio signal are respectively output to the voice amplifier 110, and the voice amplifier 110 selects one of the main audio mode, the sub-audio mode, and the multi-mode by the control signal of the microprocessor 40. Amplifies the voice signal to a predetermined volume and outputs the same to the speakers 120a and 120b. In addition, the main voice processor 90 outputs a main voice signal to the voice storage unit 180.

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.

The voice storage unit 180 converts the signal output from the main voice processing unit 90 into a digital signal and stores the converted signal, and the internal memory (not shown) has a FIFO (First In First Out) buffer structure in which the stored first is read first. If the buffer is full, the oldest data is lost and new data is stored.

In addition, the voice storage unit 180 outputs the main voice signal stored by the control signal of the microprocessor 40 to the voice recognition unit 190. The voice recognition unit 190 performs voice recognition on the input main voice signal and outputs a signal informing the microprocessor 40 at the end of one sentence, and the voice recognition information is output to the OSD unit 150. do. Then, the microprocessor 40 controls the OSD unit 150 to output the OSD characters for the voice recognition main voice on the CRT 160 so that the viewer can see the characters corresponding to the main voice while listening to the sub voice. do.

Next, a description will be given in detail with reference to the flowcharts of FIGS. 3, 4A, and 4B attached to the audio output process of the voice multicasting in the television according to the preferred embodiment of the present invention in a television having the above-described configuration.

When the user selects a channel to be watched, the microprocessor 40 outputs a control signal to each component so that the user 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, the main voice is stored in the voice storage unit 180, and then a process for counting the main / sub-audio mode switching is called (S120, S140).

The main / sub audio mode switch count process is shown in FIG. 4A.

That is, it is determined whether the channel has changed first, and if the channel is changed, the main / sub audio mode switch count value (SCNT) and the sub audio mode flag (SFLG) are cleared and then returned. It is determined whether the voice mode is selected (S141 to S143).

If it is determined in step S143 that the sub-audio mode is selected, the sub-audio mode is switched to output the sub-audio through the speakers 120a and 120b, and the sub-audio mode flag SFLG is set to 1 and then returned (S144). .

However, if the sub audio mode is not selected, it is determined whether the main audio mode is selected again. If the main audio mode is selected, the main audio mode is switched to output the main audio through the speakers 120a and 120b. It is determined whether the sub-voice mode flag SFLG is set to 1 to determine whether the mode has been used. If it was previously in the negative mode, increase the main / sub negative switching count value (SCNT) by 1, clear the sub-negative mode flag (SFLG), and then return. If it was not in the negative mode previously, just return it (S145 to S149). ).

On the other hand, if the main voice mode is not selected as a result of the determination in step S145, it is determined whether or not the multi-mode is selected, and if selected, switch to the multi-mode so that the main voice and the sub-audio are separated and output to the left and right speakers, respectively, and the sub-voice mode flag If (SFLG) is cleared and returned, the previous state is maintained when the multi-mode is not selected, but if the user does not select the voice mode, the main voice is output (S140 and S141).

After performing the main / sub audio mode switching count process, it is determined whether the main / sub audio mode switching count value (SCNT) is equal to or greater than the reference value (eg, 3). If it is, the process for outputting the main voice as an OSD character is called (S160 to S200).

A process (S200) of outputting the main voice as an OSD character is as shown in FIG. 4B.

That is, the voice recognition is performed on the stored main voice and the main voice is output to the CRT 160 as OSD characters whenever the voice recognition for one sentence of the main voice is completed (S201 to S203).

That is, when the microprocessor 40 outputs a control signal to the voice storage unit 180, the voice storage unit 180 outputs the stored main voice signal to the voice recognition unit 190, and the voice recognition unit 190 generates a voice. By performing the recognition, when the voice recognition for one sentence of the main voice is completed, the microprocessor 40 is notified, and the voice recognition information is output to the OSD unit 150.

Then, the microprocessor 40 controls the OSD unit 150 to output the OSD characters corresponding to the voice recognition main voice on the CRT 16O.

This allows the viewer to watch the voice multiple broadcasts with sub-audios while simultaneously viewing the corresponding main voices with OSD characters.

As described above, the present invention provides a convenience to a user who learns a foreign language by outputting the main voice corresponding to the sub voice as an OSD character by recognizing it when switching to the main voice mode for a predetermined number of times while watching the voice multiple broadcast as a sub voice. There is an effect that can be provided.

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 (3)

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. The audio amplification unit 110 that amplifies and expresses to the outside through the speakers 120a and 120b, and the OSD text signal for display in the operation control of the television under the control of the microprocessor 40 are mixed with the video signal and the CRT 160 In the audio multiple television having an OSD unit 150, the operation is controlled by the microprocessor 40, A first process of determining whether the voice is multicast, a second process of storing the main voice if the voice is multicast, a third process of counting the number of main / sub audio mode switching, and a main / sub audio switching count value A fourth process of determining whether the error is abnormal, a fifth process of determining whether the present sub-voice mode is present if the main / sub-audio switching count value is equal to or greater than the reference value, and performing voice recognition on the stored main voice in the current sub-voice mode. And a sixth process of outputting the main voice as an OSD character on a unit basis. The method of claim 1, The first step of determining whether the channel is changed is the third step of counting the number of times of the main / sub audio mode switching, and if the channel is changed, the main / sub audio mode switching count value SCNT and the sub audio mode flag SFLG. The second step of clearing and returning, the third step of determining whether the sub-audio mode is selected if the channel is not changed, and if the sub-voice mode is selected as a result of the determination of the third step, switches to the sub-audio mode and the speaker ( The sub-audio is output through the 120a and 120b, and the sub-audio mode flag SFLG is set to 1 and then returned. In step 5 of determining whether the mode is selected or not, if the main voice mode is selected, the main voice is switched to the main voice mode, and the main voice is output through the speakers 120a and 120b. In order to determine whether the negative voice flag SFLG is set to 1, a sixth step of determining whether or not the negative voice mode flag SFLG is set to 1; Clear and return the mode flag (SFLG), and if it wasn't in the negative mode before, simply return to step 7 and, if the main voice mode is not selected in step 6, whether multiple modes are selected. If judged and selected, switch to multi-mode so that the main and sub-audios are separated and output to the left and right speakers respectively, clear the sub-audio mode flag (SFLG) and return, and return to the previous state if the multi-mode is not selected. And a eighth step of maintaining the voice. The method of claim 1, A sixth step of performing voice recognition on the main voice and outputting the OSD text in units of sentences by the first step of performing voice recognition on the stored main voice, and determining whether the voice recognition on one sentence is finished. And a third step of outputting an OSD character corresponding to the main voice to the CRT 160 after the voice recognition for one sentence is completed.