KR19980029597A - Automatic Character Switching Device by Sound Processing at Volume Step Up of TV Receiver and Its Method - Google Patents

Abstract

The present invention relates to an automatic character switching device and method by sound processing when the volume step of the television receiver rises, and the viewer operates the volume keys of the key input unit 220 to uniformly output the audio output to the speakers 600 and 620. In order to solve the problem that the viewer does not accurately understand the broadcast program that the viewer does not have a good voice characteristic or trembling sensitivity, such as when the sound level is higher than the level, the speaker 600, 620 outputs the speaker ( When the voice output to 600 and 620 is raised above a certain level, the process of automatically turning on the text switching device 700, and when the text switching device 700 is turned on, receives the received audio signal and the viewer. Comparing the audio level to determine whether or not the predetermined level or more, and if the determined audio level is higher than or equal to the predetermined level, retrieves the character ID from the image signal processed by the image data Demodulating the error generated in the text data and arranging them sequentially; outputting the text data by specifying the size, position, and color of the text data arranged by the control signal of the microcomputer 200; It provides a method that processes location and color-coded text data and displays them on the CRT screen as OSD texts, delivering accurate information to viewers and preventing noise from surroundings due to high pitches. It is.

Description

Automatic Character Switching Device by Sound Processing at Volume Step Up of TV Receiver and Its Method

The present invention relates to a television receiver (hereinafter referred to as a TV), and more particularly, a sound level output to a speaker when watching TV is not good or has a poor sensitivity. Automatic character switching device by the sound processing when the volume step of the television receiver for automatically processing the audio signal output to the speaker to display the OSD (On Screen Display) characters on the CRT screen when the signal rises will be.

In general, as shown in FIG. 1, the TV includes a microcomputer 200 which generally controls the operation of the TV by manipulation of the key input unit 220, and a memory 240 which stores data to be processed by the microcomputer 200. And a tuner 100 for receiving the broadcast signal of the channel selected by the tuner voltage output from the microcomputer 200 from the antenna ANT, and a video signal of the broadcast signal received by the tuner 100. The CRT 400 by the image processor 300, the image amplifier 320 amplifying the image signal output from the image processor 300, and the vertical / horizontal synchronization signal processed by the image processor 300. A vertical / horizontal synchronization processor 340 for deflecting the vertical synchronization signal and the horizontal synchronization signal of the image signal displayed on the screen; and a CRT 400 for receiving an image signal output from the image amplifier 320 and displaying the image signal on the screen; And received by the tuner 100. A voice processor 500 for processing a voice signal of a transmission call, a voice amplifier 520 for amplifying the voice signal processed by the voice processor 500 to a predetermined level, and a voice output from the voice amplifier 520. Loudspeaker 600 and 620 are configured to receive and output a signal.

In the general TV configured as described above, when the viewer selects a channel to be watched by manipulating the key input unit 220, the microcomputer 200 recognizes the selected channel and applies the tuner voltage to the tuner 100.

Accordingly, the tuner 100 receives the broadcast signal of the channel selected by the tuner voltage generated by the microcomputer 200 from the free space through the antenna ANT and transmits the broadcast signal to the image processor 300 and the voice processor 500. Enter it.

Thus, the image processor 300 processes only the image signal from the broadcast signal input from the tuner 100 by the control signal of the microcomputer 200 and supplies the processed image signal to the image amplifier 320.

Therefore, the image amplification unit 320 amplifies the video signal to a level that can be displayed on the screen of the CRT 400 and supplies it to the CRT 400, so that the video signal transmitted from the broadcasting station to the free space is displayed on the screen. Watch.

At this time, the vertical / horizontal synchronization processor 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 by the image processor 300.

In addition, the voice processor 500 processes only the voice signal among the broadcast signals input from the tuner 100 and inputs the voice signal to the voice amplifier 520.

Therefore, the voice amplification unit 520 amplifies the audio signal to a predetermined level in the voice processor 500 and outputs the audio signal to the speakers 600 and 620 so that the viewer can watch the video output on the CRT 400 screen. You can listen.

However, in general TV, when the viewer raises the sound output to the speakers 600 and 620 by more than a certain level (for example, 20 levels) by operating the volume key of the key input unit 220, the speaker ( The problem that the viewer does not correctly understand the broadcast program that is currently being watched due to poor sensitivity such as voice characteristic or vibration that is output to 600) 620 is caused.

In particular, while children were watching TV, the children incorrectly manipulated the key input unit (eg, the remote control) so that the voice was loudly output, and thus the contents of the broadcast program being watched were not correctly transmitted by voice, or the noise was caused.

The present invention was devised to solve the above-mentioned shortcomings. For this purpose, the CRT is automatically processed by processing the audio signal output to the speaker when the volume key attached to the key input unit is raised above a certain level when watching TV. It is to display the OSD text on the screen to convey the correct contents to the viewer.

Another object of the present invention is to automatically process the voice signal output to the speaker when the volume key attached to the key input unit to a predetermined level or more to prevent noise pollution in advance.

In order to achieve the above objects, the present invention automatically converts voice data into text data when the voice output to the TV speaker 600 or 620 is over a predetermined level, and displays the text as OSD on the CRT 400 screen. A device configured to include a character switching device 700, and when the audio output to the speakers 600 and 620 rises above a predetermined level while watching TV, the character switching device 700 is automatically turned on. When the text switching device 700 is turned on, comparing the received audio signal with the audio level adjusted by the viewer to determine whether or not the predetermined level is higher than the predetermined level. Search and demodulate the data into text data to correct errors occurring in the text data and arrange them sequentially, and specify the size, position, and color of the text data arranged by the control signal of the microcomputer 200. By treating the process of outputting the character data and the size, position, color character data is not assigned to a feature to provide a method consisting of a step of displaying on a CRT (400) to display OSD letters.

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

Figure 2 is a block diagram showing a television receiver including an automatic character switching device by the sound processing when the volume step rise according to the present invention.

3A to 3B are flowcharts showing an operation relationship of a television receiver including an automatic character switching device by sound processing when a volume step rises according to the present invention.

Explanation of symbols on the main parts of the drawings

100: tuner 200: micom

220: key input unit 240: memory

300: Video Processor 320: Image Amplifier

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

500: Sound Processor 520: Voice Amplifier

600,620: Speaker 700: Character Switching Device

710: command receiving control unit 712: signal receiving unit

714: comparison reader 716: character ID search unit

718: demodulation unit 720: error correction unit

722: sequential array portion 724: character designation portion

726: output unit

Hereinafter, the configuration according to an embodiment of the present invention will be described in detail with the accompanying drawings.

Figure 2 is a block diagram showing a television receiver including an automatic character switching device by the sound processing when the volume step rise according to the present invention.

The microcomputer 200 controls the overall operation of the TV by the operation of the key input unit 220, the memory 240 storing data to be processed by the microcomputer 200, and the microcomputer 200 is output from the microcomputer 200. A tuner 100 for receiving a broadcast signal of a channel selected by a preset voltage from an antenna ANT, an image processor 300 for processing an image signal of a broadcast signal received by the tuner 100, and the image processor. An image amplifying unit 320 for amplifying the image signal output from the 300 and a vertical synchronizing signal of the image signal displayed on the screen of the CRT 400 by the vertical / horizontal synchronizing signal processed by the image processor 300; A vertical / horizontal synchronization processor 340 for deflecting a horizontal synchronization signal, a CRT 400 for receiving an image signal output from the image amplifier 320 and displaying it on a screen, and a broadcast received by the tuner 100 Voice processing the audio signal of the signal The processor 500, a voice amplifier 520 for amplifying the voice signal processed by the voice processor 500 to a predetermined level, and a speaker for receiving and outputting a voice signal output from the voice amplifier 520 ( In a TV having 600 and 620, if the voice output to the speaker 600 or 620 is above a predetermined level (for example, 20 levels), the voice data is automatically converted into text data and displayed on the screen of the CRT 400. It is configured to further include a character switching device 700 for displaying the OSD character.

The text switching device 700 includes a signal receiver 712 for receiving a video signal processed by the image processor 300 and a voice signal processed by the voice processor 500 according to a control signal of the microcomputer 200, and the reception. A comparison reading unit 714 for receiving and comparing the received signal and the control signal of the microcomputer 200 according to the key input of the key input unit 220 input through the command receiving control unit 710, and the image processor 300. Decodes the character ID searched by the control signal of the microcomputer 200 input through the character ID search unit 716 and the command receiving control unit 710 to search for the unique number (ID) of the text data from the video signal processed in A demodulation unit 718 for processing and outputting character data, an error correction unit 720 for correcting errors generated in the demodulated character data, a sequential array unit 722 for sequentially arranging the corrected character data, Through the command receiving control unit 710 The character processor 724 for specifying the size, position, and color of the text data sequentially arranged by the control signal of the output microcomputer 200, and the image processor 300 by outputting the size, position, and color designated character data. ) Is provided with an output unit 726 for input.

3A to 3B are flowcharts illustrating an operation relationship of a television receiver including an automatic character switching device by sound processing when a volume step is increased according to the present invention.

Checking whether the TV is on (S301), watching the TV if the TV is on (S302), raising the voice to a predetermined level (for example, 20 levels) or more during TV watching (S303), When the voice is raised above a certain level, the character switching device is automatically turned on (S304), and checking whether the character switching device is on (S305), and if the character switching device is turned off, the predetermined level or more. Listening to the elevated voice (S317), and receiving the video signal and the audio signal (S306) when the character switching device is turned on, and comparing the received audio signal with the audio level adjusted by the viewer. (S307), determining whether the compared voice is above a certain level (S308); if the determined result is below a certain level, the process returns to step S307; Searching for (S309) and the retrieved character ID Decoding and demodulating the character data into character data (S310), correcting an error generated in the demodulated character data (S311), sequentially arranging the error-corrected character data (S312), and Specifying the size, position, and color of the character data (S313); outputting the character data designated with the size, position, and color (S314); 400, a step of displaying on the screen (S315), and if the OSD character is displayed on the screen of the CRT (400), the step of checking whether the character switching device is off (S316), and there is no key input result confirmed the character switching device is turned on If the state returns to step S306, and if there is a key input and the character switching device is turned off, the step S317 of listening to a voice raised above a certain level is shown.

Looking at the working state of the present invention made as described above are as follows.

When the viewer operates the key input unit 220 and selects a channel to be watched while the power is supplied and the TV is on (S301), the microcomputer 200 recognizes the tuner to generate a tuner voltage corresponding thereto. 100).

Accordingly, the tuner 100 receives the broadcast signal of the channel selected by the tuner voltage generated by the microcomputer 200 from the free space through the antenna ANT and transmits the broadcast signal to the image processor 300 and the voice processor 500. Enter it.

Thus, the image processor 300 processes only the image signal from the broadcast signal input from the tuner 100 by the control signal of the microcomputer 200 and supplies the processed image signal to the image amplifier 320.

Therefore, since the image amplifier 320 amplifies the video signal to a level that can be displayed on the screen of the CRT 400 and supplies it to the CRT 400, the video signal transmitted from the broadcasting station to the free space is displayed on the screen.

At this time, the vertical / horizontal synchronization processor 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 by the image processor 300.

In addition, the voice processor 500 processes only the voice signal among the broadcast signals input from the tuner 100 and inputs the voice signal to the voice amplifier 520.

Therefore, the voice amplifier 520 amplifies the voice signal processed by the voice processor 500 to a predetermined level and outputs the speaker 600 and 620 to view an image output by the viewer on the screen of the CRT 400 (S302). Listen to your voice while you listen.

While watching the TV, the viewer, in particular a child, mischievously manipulates the volume key of the key input unit 220 to raise the audio level output to the speakers 600 and 620 to 20 or more levels (S303). In order to convert the voice data output to the speaker 600 and 620 into text data and to display the text on the screen of the CRT 400, the text switching device 700 is automatically turned on (S304), and the text switching device 700 is turned on. Check the authorization (S305).

If the character conversion device 700 is turned off, the microcomputer 200 outputs a voice signal of at least 20 levels processed by the voice processor 500 to the speakers 600 and 620 through the voice amplifier 520. The viewer listens to the voice raised to 20 or more levels (S317).

However, when the character conversion device 700 is turned on as a result of the microcomputer 200, the signal receiver 712 receives the video signal processed by the image processor 300 and the audio signal processed by the audio processor 500. (S306) and input to the comparison reading unit 714.

Therefore, the comparison reading unit 714 compares the voice level adjusted by the viewer input from the microcomputer 200 through the voice signal and the command receiving control unit 710 among the signals received and received by the signal receiving unit 712 at the front end (S307). In step S308, it is determined whether the compared voice level is a predetermined level, that is, 20 or more levels.

As a result of the determination by the comparison reading unit 714, if the compared voice level is 20 levels or less, the comparison reading unit 714 continues to compare the voice levels. In operation 309, the character ID is retrieved from the image signal processed by the image processor 300 and input to the demodulator 718.

Therefore, the demodulation unit 718 decodes the character ID searched by the character ID search unit 716 according to the control signal of the microcomputer 200 input through the command receiving control unit 7109 to demodulate the character data into character data (S310) and error. The error generated in the demodulated character data through the correction unit 720 is corrected (S311).

In this case, the error correcting unit 720 corrects an error generated in the text data based on the standard text data set in the memory.

The character data whose error is corrected by the error correcting unit 720 is sequentially arranged (S312) according to the searched order via the sequential arranging unit 722 and input to the character specifying unit 724.

That is, the text designator 724 displays the text data input from the sequencer 722 as OSD characters on the screen of the CRT 400 by the control signal of the microcomputer 200 input through the command receiving control unit 7109. Specify the size (e.g. 15), the display position (e.g., the bottom of the screen) and the color of the character (e.g. blue) (S313) to specify the character data whose size, position and color are determined by the output unit 726. The output S314 is input to the image processor 300.

Therefore, the image processor 300 processes the character data specified in size, position, and color, and outputs them as OSD characters and displays them as OSD characters on the screen of the CRT 400 through the image amplifier 320 (S315). Watch the video to understand the program you are watching.

If the OSD character specified in the size, position and color of the character is displayed on the screen of the CRT 400, the microcomputer 200 checks whether the character switching device 700 is off (S316).

As a result of the check, if there is no key input for turning off the character switching device 700 in the key input unit 220, and the character switching device 700 is still in the on state, the microcomputer 200 uses the image processor (712). The video signal processed by 300 and the audio signal processed by the audio processor 500 are continuously received so that the above process is repeatedly performed.

On the other hand, the microcomputer 200 checks whether the character switching device 700 is off, and there is a key input for turning off the character switching device 700 in the key input unit 220. If the character switching device 700 is off, the voice processing unit is turned off. The audio signal raised to 20 levels or more processed by the 500 is output to the speakers 600 and 620 through the voice amplifier 520 to allow the viewer to listen to the voice raised to 20 levels or more (S317).

As described above, the present invention automatically processes the audio signal output from the speaker when the volume key attached to the key input unit is raised above a predetermined level when watching TV, and displays the correct contents to the viewer by displaying OSD text on the CRT screen. In addition to the transmission and the surrounding noise pollution due to high sound has an effect that can be prevented in advance.

The present invention has been described with respect to the automatic character switching device and the method by the sound processing when the volume step rise of the television receiver as described in the claims, but the present invention is not limited to this, and those skilled in the art Applications and variations will be possible.

Claims (3)

The microcomputer 200 for controlling the TV by the operation of the key input unit 220, the tuner 100 for receiving the broadcast signal of the channel selected by the preset voltage from the antenna ANT, and processing the received video signal. An image processor 300, an image amplifier 320 for amplifying an image signal, a vertical / horizontal synchronization processor 340 for deflecting a vertical / horizontal synchronization signal processed by the image processor 300, and an image signal. A CRT 400 to be displayed on the screen, a voice processor 500 for processing the received voice signal, a voice amplifier 520 for amplifying the processed voice signal to a predetermined level, and a speaker for outputting the amplified voice signal. In a TV equipped with (600) (620), if the voice output to the speaker (600) (620) is above a certain level, the voice data is automatically converted into text data and displayed as OSD characters on the screen of the CRT (400). Characterized in that configured to include a character switching device 700 Automatic character conversion apparatus according to the sound processing step when the volume increase of the television receiver. The signal receiver of claim 1, wherein the text switching device 700 receives a video signal processed by the image processor 300 and a voice signal processed by the audio processor 500 by a control signal of the microcomputer 200. 712 and the comparison reading unit 714 for receiving and comparing the received signal and the control signal of the microcomputer 200 according to the key input of the key input unit 220 input through the command receiving control unit 710; The character ID search unit 716 for searching for a unique number (ID) of the character data in the image signal processed by the image processor 300, and the control signal of the microcomputer 200 input through the command receiving control unit 710 A demodulation unit 718 for decoding the character ID retrieved by the character ID and outputting the character data, an error correction unit 720 for correcting an error generated in the demodulated character data, and a sequential array for sequentially arranging the corrected character data. Section 722 and command receiving system The character designation unit 724 for specifying the size, position, and color of the text data sequentially arranged by the control signal of the microcomputer 200 inputted through the fisherman 710, and the text data designated with the size, position, and color And an output unit (726) for outputting and inputting to the image processor (300). In the voice control method output to the TV speaker, when the audio output to the speaker 600, 620 while watching TV is raised to a predetermined level or more, the character switching device 700 is automatically turned on, and the character switching When the device 700 is turned on, comparing the received audio signal with the audio level adjusted by the viewer to determine whether or not the predetermined level or more, and if the determined voice is more than the predetermined level, search for the character ID from the image signal being processed. A process of correcting errors generated in the text data by demodulating the text data and sequentially arranging the text data, and specifying the size, position, and color of the text data arranged by the control signal of the microcomputer 200 to output the text data; To process the character data specified in size, position, and color and display them on the CRT 400 screen as OSD characters. Automatic character switching method.