KR19990013441U - Screen control device that changes according to the size of audio signal - Google Patents

Abstract

The present invention relates to a device for controlling a change in a screen corresponding to the use of a change in the size of the audio signal in the television, the screen in the horizontal direction, vertical direction, or bidirectional according to the size of the audio signal received through the antenna It relates to a device for changing to. In general, the horizontal deflection means and the vertical deflection means for adjusting the deflection of the scanning beam injected into the CRT of a television are fixed without any shaking or changing of the video screen so that the deflection of the scanning beam is always stabilized. According to the present invention, when a variable mode of a video screen is set through a key input unit after a voice signal received from an antenna is amplified by a voice signal demodulation IC, a DC level corresponding to the size is generated by the voice level processor. After conversion, it is matched with the horizontal size data and the vertical size data applied to the microcomputer to adjust the size of the video screen, and through the deflection correction process of the screen controller, the video screen is changed in the horizontal direction, vertical direction, or both directions. Presenting a device that can be displayed. In other words, the present invention is a device that allows a conventional viewer to feel the three-dimensional rhythm and liveliness on the television screen that does not feel while watching the video screen is always displayed stably.

Description

Screen control device that changes according to the size of audio signal

The present invention relates to a device for controlling a change in the corresponding screen by using a change in the size of the audio signal in the television, while watching a broadcast program with a lot of video and audio changes, such as show programs and movie programs of the television The present invention relates to a device for changing a screen in a horizontal direction, a vertical direction, or a bidirectional direction according to the magnitude of a voice signal received through an antenna.

In general, a television is provided with a broadcast signal of a broadcast channel tuned by a viewer among a plurality of broadcast channels transmitted from a plurality of television stations through a tuner and then subjected to image signal processing and audio signal processing, respectively. Is being played through. In the receiving tube, the received video signal is formed by the respective RGB electron guns to form a scanning beam by combining the luminance signal and the color signal in the image processing process, and is reflected on the RGB fluorescent surface through the shadow mask or the aperture grille of the CRT. The video screen sent from the transmitting side is reproduced, and the reproduction of the video screen involves a process in which the horizontal deflection means and the vertical deflection means deflect the scanning ratio in the horizontal direction and the vertical direction.

In the case of the horizontal deflection means for adjusting the horizontal deflection of the scanning beam injected into the CRT of the television receiver, the horizontal deflection of the scanning beam is always performed while driving the horizontal deflection coil by a horizontal output operation such as automatic frequency control. Similarly, in the case of the vertical deflection means for adjusting the vertical deflection of the scanning beam, since the vertical deflection of the stable scanning beam is achieved, the shaking or change of the video screen is fixed, and thus the video and audio of the television show program or movie program is changed. There is a problem that there is a significant inconvenience to feel the rhythm and liveliness while watching a broadcast program.

The present invention was devised to solve the above problems, and an object of the present invention is to utilize a data processing function of horizontal data and vertical data to vary the size of a video screen and DC data corresponding to the size of an audio signal. Accordingly, the present invention provides a screen control device that changes according to the size of an audio signal for changing the size of a video screen in a horizontal direction, a vertical direction, or a bidirectional direction when a video screen requiring more three-dimensional realism and a sense of realism is required.

In order to achieve the above object of the present invention, the present invention is a voice signal that has undergone the voice demodulation process by the voice level processing unit in the variable setting mode of the video screen through the key input unit is converted into DC data according to its size, It is applied to the horizontal size data and the vertical size data that is applied to adjust the size of the image screen is applied to the screen control unit, the image screen is implemented by a device that is displayed by varying in the horizontal direction, vertical direction, or both directions by the screen control unit It features.

1 is a block diagram showing a screen control device that varies depending on the size of a voice signal according to the present invention.

FIG. 2 is a block diagram illustrating a screen controller that is a main part of FIG. 1.

3 is a flowchart illustrating a screen control device that varies according to a magnitude of a voice signal according to the present invention.

<Description of Symbols for Main Parts of Drawings>

100: antenna 110: tuner circuit

120: video IF unit 130: video signal amplifier

140: main demodulation IC 150: water pipe drive

160: Award Winner 170: Voice IF Division

180: sync separation unit 190: voice signal demodulation IC

200: speaker 210: voice level processing unit

221: deflection correction IC 222: horizontal drive unit

223: horizontal output unit 224: vertical drive unit

225: vertical output unit 230: microcomputer

240: key input unit

Hereinafter, with reference to the accompanying drawings will be described a specific embodiment for achieving the object of the present invention.

1 is a block diagram illustrating a screen control apparatus that varies according to a magnitude of a voice signal according to the present invention.

Referring to FIG. 1, the present invention performs a high frequency amplification of a video signal of a channel selected for display on a screen among high frequency signals received through an antenna 100, and mixes with an oscillation frequency oscillated by channel selection. A tuner circuit unit 110 for converting to an intermediate frequency for easy amplification and then amplifying to generate a composite video signal, an image IF unit 120 for intermediately amplifying the image signal applied from the tuner circuit unit 110, and A video signal amplifier 130 for amplifying the complex video signal applied by the intermediate frequency amplification from the video IF unit 120 to a signal level capable of signal processing, and horizontal synchronization among the video signals output from the video signal amplifier 130. Demodulating the video signal applied from the video signal amplification unit 130 and the sync separation unit 180 for separating the signal from the vertical synchronization signal and applying it to the screen controller 220. A main demodulation IC 140 applied to the water pipe drive 150 to be amplified and displayed on the water pipe 160, and an audio IF unit 170 for amplifying intermediate frequencies of the voice signal applied from the tuner circuit 120; A voice signal demodulation IC (170) for demodulating the voice intermediate frequency signal amplified by the voice IF unit (170) and outputting it to the speaker (200), and a voice signal output through the voice signal demodulation IC (170). Converts into DC data corresponding to the size, and transmits the serial data to the microcomputer 230 as a serial data, and the DC size applied from the voice level processing unit 210 and the horizontal size to adjust the size of the screen. The microcomputer 230 for applying the screen control data signal to the screen controller 220 by matching the data with the vertical size data, and receiving the screen control data signal from the microcomputer 230 to adjust the size of the screen in the horizontal and vertical directions. Control Key input unit for setting the screen control unit 220 and the microcomputer 230, the horizontal variable mode to change the image screen in the horizontal direction, the vertical variable mode to change in the vertical direction and the mode to change in both the horizontal and vertical direction ( 240).

Hereinafter, the operation of one embodiment of the present invention made as described above will be described in detail with reference to the accompanying drawings.

First, the composite video signal, which is a high frequency signal received from the antenna 100, is converted into an intermediate frequency that is easily tuned and tuned by the tuner circuit unit 110, and the image IF unit 120 is applied from the tuner circuit unit 110. The video signal is amplified by intermediate frequency. The video signal amplifier 130 connected to the video IF unit 120 amplifies the intermediate frequency-amplified video signal to the size of a signal for demodulation and applies it to the main demodulation IC 140. 140 is demodulated and amplified so as to be suitable for displaying the video signal applied from the video signal amplifier 130 on the water pipe 160 and applied to the water pipe drive 150. The synchronization separator 180 is connected between the image signal amplifier 130 and the main demodulation IC 140 to separate the synchronization signal necessary to reproduce the image sent from the transmitter as it is, and to control the screen controller 220 and the microcomputer. To 230.

In addition, the voice signal output from the tuner circuit unit 110 is amplified by an intermediate frequency by the voice IF unit 170 and applied to the voice signal demodulation IC 190, and the speaker 200 through the voice signal demodulation IC 190. ) Demodulated and amplified according to the output.

When the variable setting signal of the video screen is generated through the key input unit 240, the variable setting signal of the video screen is applied to the microcomputer 230 through a signal receiver (not shown) mounted in the system of the television. When the variable setting signal of the video screen is applied from the key input unit 240, the microcomputer 230 applies a data processing signal to the voice level processor 210, and the voice level processor 210 performs a voice signal demodulation IC ( The voice signal output from 190 is converted into DC data corresponding to the magnitude thereof and transmitted to the microcomputer 230 as serial data. In addition, the microcomputer 230 applies a screen control data signal in which the DC data applied from the voice level processor 210 and the horizontal size data for adjusting the size of the screen and the vertical size data are matched to the screen controller 220. The screen controller 220 changes the video screen displayed on the television in the horizontal direction, the vertical direction, or the bidirectional direction by the screen control data signal applied from the microcomputer 230.

FIG. 2 is a block diagram illustrating a screen controller that is a main part of FIG. 1.

Referring to FIG. 2, the screen controller 220 receives a screen control data signal from the microcomputer 230 and outputs a data signal for changing the horizontal and vertical sizes of the video screen, respectively, to the horizontal driver 222 and the vertical driver ( The horizontal driving unit 222, which is applied to the deflection correction IC 221 and the horizontal screen data signal from the deflection correction IC 221, is converted into a horizontal deflection driving signal and outputted through the horizontal output unit 223. And a vertical driving unit 224 for converting the vertical screen data signal applied from the deflection correction IC 221 into a vertical deflection driving signal so as to be output through the vertical output unit 225.

Accordingly, the deflection correction IC 221 receives the screen control data signal for changing the video screen from the microcomputer 230 and applies the horizontal screen data signal for changing the horizontal size of the video screen from the synchronization separator 180. In addition to the horizontal synchronous signal to the horizontal driver 222, while applying a vertical screen data signal of the vertical size of the video screen with the vertical synchronous signal received from the synchronization separator 180 to the vertical driver 224. do. The horizontal driver 222 receives the data signal of the variable horizontal screen from the deflection correction IC 221 and amplifies the horizontal driver to output the horizontal deflection drive to the horizontal output unit 223, and outputs the horizontal output unit 223. Is applied to the water pipe drive 150 to generate a horizontal output current for deflection drive of a horizontal deflection coil (not shown) and a high-voltage generating operation of a flyback transformer (not shown) to be displayed on the water pipe 160. The video screen changes in the horizontal direction.

In addition, the vertical driver 224 amplifies the data signal of the variable vertical screen applied from the deflection correction IC 221 so as to enable vertical deflection driving, and outputs the vertical signal to the vertical output unit 225. A video output is changed in the vertical direction by generating a vertical output current for vertical deflection of the deflection coil (not shown) and outputting the vertical output current to the water pipe drive 150 to be displayed on the water pipe 160.

3 is a flowchart illustrating a screen control apparatus that varies according to a magnitude of a voice signal according to the present invention, and the process proceeds to step 10 from a start signal to determine whether or not the screen change mode is determined by the microcomputer 230. In the case of step 30, the process proceeds to step 40. If the screen is not in the screen change mode, the process is terminated by displaying a normal video screen in step 20. The step 40 is a step of converting the voice signal output from the voice signal demodulation IC 190 to the DC data corresponding to the magnitude through the voice level processor 210, the DC data by the voice level processor 210 If the conversion is made to the microcomputer 230, the process proceeds to step 50. In step 50, if the screen control data signal is applied from the microcomputer 230 and the horizontal deflection is made, the process proceeds to step 60. If the vertical deflection is made, the process proceeds to step 70. In the case where the process proceeds to the step 60, the size of the video screen is changed by being displayed in the horizontal direction and is terminated. In the case where the process proceeds to the step 70, the size of the video screen is changed by being displayed in the vertical direction and is terminated. If the vertical deflection of the video screen is not performed, the process returns to the step 50 and undergoes the deflection correction step again.

As described above, according to the present invention, the audio signal received from the antenna in the variable video mode setting mode through the key input unit is amplified by the audio frequency and then output to the speaker through the audio signal demodulation IC according to the size of the DC signal. After conversion into data, it is matched with the horizontal size data and vertical size data applied to the microcomputer to adjust the size of the video screen, and the video screen is changed in the horizontal direction, vertical direction, or both directions through the deflection correction process of the screen control unit. As it is displayed, there is an effect that allows the conventional viewer to feel the three-dimensional rhythm and liveliness on the television screen that does not feel while watching the video screen is always displayed stably.

Claims (4)

In order to display on the screen among the high-frequency signals received through the antenna 100, a high-frequency amplification process of the channel selected by the channel is converted to an intermediate frequency that is easily amplified by mixing with the oscillation frequency generated by the channel tuning. A tuner circuit unit 110 for generating a composite video signal; An image IF unit 120 for intermediately amplifying the image signal applied from the tuner circuit unit 120; An image signal amplifier 130 for amplifying the complex image signal applied by being amplified from the image IF unit 120 to a signal level capable of signal processing; A sync separator 180 for separating the horizontal sync signal and the vertical sync signal from the video signal output from the video signal amplifier 130 and applying the same to the screen controller 220; A main demodulation IC 140 for demodulating and amplifying the video signal applied from the video signal amplifying unit 130 to the water pipe drive 150 to be displayed on the water pipe 160; A voice IF unit 170 for intermediately amplifying the voice signal applied from the tuner circuit unit 120; In the television comprising a voice signal demodulation IC (170) for demodulating the voice intermediate frequency signal amplified by the voice IF unit 170 to output to the speaker 200, A voice level processor 210 for converting the voice signal output through the voice signal demodulation IC 170 into DC data corresponding to the magnitude thereof and transmitting the serial signal to the microcomputer 230 as serial data; A microcomputer 230 for applying a screen control data signal to the screen controller 220 by matching the DC data applied from the voice level processor 210 with the horizontal size data for adjusting the size of the screen and the vertical size data; A screen control unit 220 receiving the screen control data signal from the microcomputer 230 and controlling the size of the horizontal and vertical directions of the screen; And a key input unit 240 for setting the microcomputer 230 in a horizontal variable mode for changing an image screen in a horizontal direction, a vertical variable mode for changing in a vertical direction, and a mode for changing in both horizontal and vertical directions. The screen control device changes according to the size of the audio signal. The method of claim 1, wherein the microcomputer 230 receives DC data from the voice level processor 210 and matches the horizontal and vertical size data to adjust the size of the screen according to the size of the voice signal. Changing display controls. The horizontal control unit 222 and the vertical drive unit 224 according to claim 1, wherein the screen control unit 220 receives the screen control data signal from the microcomputer 230 and changes the horizontal and vertical sizes of the video screen. A horizontal driver 222 receives a horizontal screen data signal from the deflection correction IC 221 and converts it into a horizontal deflection driving signal and outputs the same through a horizontal output unit 223. And a vertical driver 224 configured to convert the vertical screen data signal applied from the deflection correction IC 221 into a vertical deflection driving signal so as to be output through the vertical output unit 225. Size control screen controls. The magnitude of the audio signal according to claim 4, wherein the deflection correction IC 221 receives the screen control data signal from the microcomputer 230 to change the size of the video screen in a horizontal direction, a vertical direction, or in both directions. Display controls that change with