KR20000027977A - Method for automatically adjusting volume of sound of television - Google Patents

Abstract

PURPOSE: A method for automatically adjusting a volume of sound of a television is provided to output a uniform volume of sound although a channel is changed. CONSTITUTION: A method for automatically adjusting a volume of sound of a television includes seven steps. A first step is a detecting step to detect a control of a channel up/down key. A second step is a channel changing step in which a tuner(2) is controlled by a micro-computer(9). A third step is a volume reading step to read a changed channel volume on a volume table. A fourth step is an output control step in which a voice processing part(10) through a voice amplifying part(11) are controlled by the micro-computer. A fifth step is a detection step to detect a control of a volume up/down to change through store a volume level of a corresponding channel. A sixth step is a display step to read a channel volume in seeing and hearing from the volume table and display on a screen. A seventh step is a up/down storage step to make up/down volume of sound of the present volume and change the volume table with the made up/down volume level.

Description

Automatic volume adjustment method of television receiver

The present invention relates to a method for automatically adjusting the volume of a television receiver, and in detail, to adjusting the volume of a television receiver in which a channel and a volume controlled by a channel down / down key and a volume down / down key of the remote controller are connected to each other. It is about a method.

The internal configuration of a general television receiver in FIG. 1 is shown as a block diagram.

As shown in FIG. 1, the TV receiver has an antenna 1, a tuner 2, a data decoder 2 ′, an IF amplifier 3, a P / S separator 4, and a voice detector 5. ), An image detector 6, an audio processor 10, an OSD generator 13, an image processor 14 and a mixer 15, a remote controller 7, a receiver 8, a microcomputer 9, a memory It comprises a unit 9 ', a voice amplifier 11, a speaker 12, a CRT driver 16 and a CRT 17.

The broadcast signal of the airwave is received by the antenna 1, and the broadcast signal received by the tuner 2 controlled by the microcomputer 9 is tuned. The IF amplifier 3 amplifies an intermediate frequency (IF) signal output from the tuner 2, and the P / S separation unit 4 includes a surface acoustic wave filter to convert the intermediate frequency (IF) into an image intermediate frequency ( PIF) and voice intermediate frequency (SIF).

The voice detector 5 detects a voice signal from the voice intermediate frequency (SIF), and the voice processor 10 detects the detected voice signal based on the control signal of the microcomputer 9 (Base) and Treble. Voice processing such as volume, volume, etc. is performed, and the processed voice signal is amplified by the voice amplifier 11 and output to the speaker 12. As shown in Fig. 3, the current volume changing method includes a step of monitoring the operation of the volume up / down key (step S11), and a display step of displaying the current volume on the screen when detected in the monitoring step (step S11). (Step S12) and a up / down / storing step (step S13) in which the volume is up / down and the volume level variable is changed to the up / down volume level in accordance with the operation of the volume up / down key.

The image intermediate frequency PIF is detected by an image signal in the image detector 6, and the image processor 14 detects the color, tint, brightness, etc. according to the control signal of the microcomputer 9. Processing to output R (Red), G (Green), B (Blue) and luminance (Y) signals corresponding to the image signal, and the R, G, B and luminance (Y) signals are displayed on the OSD in the mixer 15. By mixing and outputting the R ', G', B 'and OSD blanking signals Y' generated from the generator 13, the CRT 17 is driven through the CRT driver 16, and the OSD generator 13 is The image is displayed along with the predetermined OSD pattern data from.

In addition, the remote control device 7 is a device for the viewer to control the output volume, channel switching, etc., or to remotely control the overall device, and transmits an infrared signal and receives it from the receiving unit 8 of the television to convert it into an electrical code signal. By converting and outputting to the microcomputer 9, the overall apparatus is controlled by the microcomputer 9 in accordance with the electrical code signal.

But. As described above, when it is detected in step S1 as shown in FIG. 2 by the channel shut down / down key installed in the remote control device 7, the channel is turned over by the output of the channel change signal to the tuner 2 in step S2. 3, the volume is adjusted by the volume up / down keys as shown in FIG. 3, but the volume is output at the same volume even when the channel is changed, and the volume is adjusted again according to the strength of the voice signal transmitted from the broadcaster. There is a problem.

Accordingly, an object of the present invention is to provide a method for automatically adjusting the volume of a television receiver to output a constant volume level even when the channel is changed by the operation of the channel down / down key of the remote control device. There is this.

1 is a block diagram showing an example of a circuit configuration of a general television receiver;

2 is a flowchart showing an example of a conventional channel changing method;

3 is a flowchart showing an example of a conventional volume changing method;

4 is a flowchart showing an example of a channel changing method according to an embodiment of the present invention;

5 is a flowchart showing an example of a volume change method according to an embodiment of the present invention.

* Explanation of symbols on the main parts of the drawings

1: antenna 2: tuner 2 ': data decoder

3: IF amplifier 4: P / S separation part 5: negative detector

6: video detector 7: remote controller 8: receiver

9: micom 9 ': memory unit 10: voice processing unit

11: audio amplifier 12: speaker 13: OSD generator

14: image processing unit 15: mixer 16: CRT drive unit

17: CRT

In order to achieve the above object, the automatic volume control method of a television receiver according to an embodiment of the present invention includes a tuner, a P / S separator, a remote controller, a microcomputer, a voice processor, a voice amplifier, a CRT driver, and a CRT. A method for automatically adjusting the volume of a television receiver in which a channel is displayed by down / down by a channel down / down key of a remote control device and a volume is controlled by a volume up / down key. A sensing step of sensing an operation; A channel changing step of controlling the tuner by the microcomputer to change the channel when the channel down / down key is operated; A volume reading step of reading a volume of the changed channel in a volume table; An output control step of controlling a voice processing unit or a voice amplifier by a microcomputer so that the volume is controlled by the volume read in the volume reading step; A monitoring step of monitoring operation of a volume up / down key to change or store a volume level of a corresponding channel in the volume table; A display step of reading the volume of the channel currently being watched from the volume table and displaying it on the screen when detected in the monitoring step; And up / down / storing the volume up / down according to the operation of the volume down / down key and changing the volume table to the down / down volume level. .

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

The configuration of the automatic volume adjustment method of the television receiver according to the embodiment of the present invention is shown as a flowchart in Figs.

The television receiver for implementing the volume automatic adjustment method of FIGS. 4 and 5 is, as in the conventional television receiver of FIG. 1, a tuner 2, a P / S separation unit 4, a remote control device 7, and a microcomputer 9. ), A voice processor 10, a voice amplifier 11, an image processor 14, a CRT driver 16, and a CRT 17, and a channel up / down key and volume up for up / down channels. A / down tee is provided to the remote control device 7, the function of which is as described with reference to FIG.

On the other hand, in order to implement the method of the present invention, in the memory or the memory unit 9 'built in the microcomputer 9, a volume table composed of volume levels for each channel instead of or instead of volume level variables is stored. The program that can be executed is stored in the memory or the memory means 9 'built in the microcomputer 9.

The automatic volume control method of the television receiver configured as described above includes a channel up / down detection step (step S21), a channel change step (step S22), a volume reading step (step S23), and a volume output control step (steps) in FIGS. S24), the volume up / down monitoring step (step S31), the volume level display step (step S32), and the volume up / down / save step (step S33).

The channel down / down detection step (step S21) is configured to continuously monitor when the television is turned on to detect the operation of the channel down / down key of the remote control device 7 in FIG. In addition, it may be configured to detect this even when the number of the channel is input.

In the channel changing step (step S22), the tuner 2 is controlled by the microcomputer 9 to control the channel down / down key or to change the channel to the corresponding channel number when the channel number is input. do.

Then, in the volume reading step (step S23), the volume of the changed channel is read out in the above-described volume table, and in the output control step (step S24), the voice processing unit (by the microcomputer 9) controls the volume to the read volume. 10) to the voice amplifier 11 is configured to be controlled.

In this way, the volume is automatically adjusted to the volume level stored when the channel is changed.

Meanwhile, in order to adjust the volume and store it in the volume table for each channel, as shown in FIG. Monitor the operation.

The display step (step S32) is configured to read the volume of the channel currently being viewed from the volume table and display it on the screen when detected in the monitoring step (step S31).

Then, in the up / down / storing step (step S33), the voice processing unit 10 to the voice are executed by the microcomputer 9 so as to up / down the current volume according to the operation of the volume up / down key. The amplifier 11 is configured to control and change the volume table of the channel being watched to the up / down volume level.

As the volume automatic adjustment method is configured, according to the present invention, the volume output of the channel being watched is changed when the volume up / down key is operated, and the changed level is stored in the volume table for each channel when the channel is changed. Since the output can be controlled by the volume of the stored level, there is no need to readjust the volume when the channel is changed even if the output power is different for each channel.

On the other hand, it is also possible to include in the menu so that it can be set or changed by calling the channel-specific volume table directly.

According to the configuration and operation of the automatic volume adjustment method of the television receiver according to the embodiment of the present invention described above, the volume is adjusted to a level suitable for the output power of the channel when the channel is changed by creating a volume table for each channel. It provides effects such as output at a constant volume regardless of the broadcaster's output.

While the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited thereto, and the present invention may be variously modified and changed without departing from the spirit or the field of the present invention. It will be readily apparent to those of ordinary skill in the art.

Claims (1)

Tuner 2, P / S separation unit 4, remote control unit 7, microcomputer 9, voice processing unit 10, voice amplifier 11, CRT driver 16 and CRT 17 In the method for automatically adjusting the volume of a television receiver, the channel is controlled by the channel down / down key of the remote control unit 7 to display another channel, and the volume is adjusted by the volume down / down key. A sensing step (step S21) of sensing manipulation of the channel down / down key; A channel changing step (step S22) in which the tuner 2 is controlled by the microcomputer 9 to change the channel when the channel down / down key is operated; A volume reading step of reading the volume of the changed channel in the volume table (step S23); An output control step (step S24) in which the voice processing unit 10 to the voice amplifying unit 11 are controlled by the microcomputer 9 so that the volume is controlled by the volume read out in the volume reading step (step S23); A monitoring step (step S31) of monitoring operation of a volume up / down key to change or store the volume level of the corresponding channel in the volume table; A display step (step S32) of reading the volume of the channel currently being viewed from the volume table and displaying it on the screen when detected in the monitoring step (step S31); And The current volume is configured to include a down / down / storing step (step S33), in which the volume is down / down according to the operation of the volume down / down key and the volume table is changed to the down / down volume level. A volume control method of a television receiver characterized by the above-mentioned.