KR20050000085A - Television for controlling volume by environment noise - Google Patents

Abstract

PURPOSE: A television is provided to achieve improved user convenience by automatically controlling the sound volume of the television in accordance with environmental noises. CONSTITUTION: A television comprises a tuner(2) for detecting a specific broadcast signal from the signals received through an antenna(1) by using a micro processor(8); a sound detection unit(4) for detecting a sound signal by the tuner; a sound processing unit(5) for processing the signal detected by the sound detection unit, outputting the processed signal, and performing an intermediate amplification for the sound signal in accordance with the control of the micro processor; a sound amplifying unit(6) for amplifying and outputting the signal output from the sound processing unit through a speaker(7); a noise sensor(9) for sensing environmental noises; the micro processor for controlling the sound processing unit by comparing the preset sound volume level and the noise signal input from the noise sensor; and a memory(10) for storing sound volume control values corresponding to levels of external noises.

Description

Television actively controlling volume in response to ambient noise {Television for controlling volume by environment noise}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to televisions, and more particularly, to televisions that actively control volume in response to ambient noise that can automatically adjust television volume in response to ambient noise.

Conventional televisions typically have a sound output in a state where they are adjusted to a desired volume. At this time, the user habitually selects the most appropriate volume level habitually, which is dependent on human hearing, but habitually selects the volume of the most comfortable degree. One of the evidence against this is that the volume level is adjusted when there is noise around. By adjusting the volume, you can select your own sound output.

However, in the conventional television, the user adjusts the volume level manually by inputting a button formed on the remote controller or the television main body from time to time according to the noise level of the surrounding environment. For this reason, the user may feel inconvenience in watching television by adjusting the volume in accordance with the surrounding environment each time. This would have been a lot of experience for people living in roadside homes. Even televisions in public places may turn off the sound due to the ambient noise. It can be said that the main function of the television is lost by the loss of the function of sound to accurately transmit information such as news.

Let's take a quick look at the existing television configuration.

1 is a control circuit block diagram schematically showing the configuration of a conventional television sound processing region. Referring to FIG. 1, the existing sound processing region includes an antenna 1, a tuner 2, a P / S separator 3, an acoustic detector 4, an acoustic processor 5, and an acoustic amplifier 6. , A speaker 7 and a microprocessor 8.

A broadcast signal of airwaves is received by the antenna 1, and the broadcast signal received by the tuner 2 controlled by the microprocessor 8 is tuned. The microprocessor 8 includes a control program of a television and receives a user's control signal from a remote controller (not shown) for external command input. The tuned broadcast signal is detected by the tuner 2 and then modulated, amplified and output into an intermediate frequency (IF) signal. The intermediate frequency (IF) signal is separated into an image intermediate frequency (PIF) and an acoustic intermediate frequency (SIF) by the P / S separation unit 3. The P / S separation unit 3 usually includes a surface acoustic wave (SAW) filter. When the acoustic detector 4 detects and outputs an acoustic signal from the acoustic intermediate frequency (SIF), the acoustic processor 5 detects the detected acoustic signal based on the control signal of the microprocessor 8 and controls the base and treble. Performs sound processing such as (Treble) and Volume, and outputs them. The sound amplifier 6 amplifies the sound processing signal according to the user's control signal processed by the sound processor 5 and outputs the sound signal through the speaker 7 as a sound signal that can be recognized by the user.

However, the existing sound processing area does not have a function of up / down the volume in response to external noise as described above, so that the user has to adjust the volume manually according to the ambient noise. Thus, a method for automatically raising / downping the volume in response to ambient noise has been proposed.

Accordingly, an object of the present invention is to provide a television that actively controls the volume in response to the ambient noise that can automatically turn up / down the volume in response to the ambient noise in order to solve the above-mentioned conventional problem.

1 is a control circuit block diagram schematically showing the configuration of a conventional television sound processing region;

2 is a control circuit block diagram schematically showing the configuration of a television sound processing area according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1: antenna 2: tuner

3: P / S separation unit 4: Sound detector

5: sound processor 6: sound amplifier

7: speaker 8: microprocessor

9: noise sensor 10: memory

11: volume setting part 12: control switch

According to an aspect of the present invention, there is provided a television for actively controlling a volume in response to an ambient noise of the present invention, including: a tuner for detecting a specific broadcast signal by a microprocessor among signals received through an antenna; An acoustic detector for detecting an acoustic signal in the tuner; An audio processor which processes and outputs the signal detected by the acoustic detector and simultaneously amplifies the acoustic signal under the control of a microprocessor; A sound amplifier for amplifying and outputting the signal output from the sound processor through a speaker; A noise sensor for detecting external noise; A microprocessor configured to control the sound processor by comparing the currently set volume level with a noise signal input from a noise sensor; And a memory for storing a volume control value corresponding to the external noise level.

In addition, it may be desirable to provide a control switch between the noise sensor and the microprocessor to stop the function of the noise sensor.

Further, it may be desirable to further connect a distance sensor to the microprocessor and to store correlations with distance, noise and volume in the memory.

On the other hand, the sound processor comprises an amplifier.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

2 is a control circuit block diagram schematically showing the configuration of a television sound processing area according to an embodiment of the present invention. Referring to FIG. 2, the sound processing region of the present invention includes an antenna 1, a tuner 2, a P / S separation unit 3, an acoustic detector 4, an acoustic processor 5, and an acoustic amplifier 6. ), A speaker 7 and a microprocessor 8, the configuration of which is the same as the conventional configuration. However, the microprocessor 8 further includes a noise sensor 9, a memory 10, a volume setting unit 11, and a control switch 12. At this time, the noise sensor 9 performs the function of detecting the ambient noise, the memory 10 not only stores the volume level set by the user, but also stores the correlation between the ambient noise level and the volume. By providing the corresponding data to the microprocessor 8, the volume setting unit 11 means a button attached to a conventional remote controller and the television main body, and transmits the user's volume control value to the microprocessor (8), As shown in the drawing, the control switch 12 is installed between the noise sensor 9 and the microprocessor 8 to perform a function for pausing a function of volume control corresponding to ambient noise, which is a main function of the present invention. Done.

The broadcast signal of the airwave is received by the antenna 1, and the broadcast signal received by the tuner 2 controlled by the microprocessor 8 is tuned. The microprocessor 8 includes a control program of a television and receives a user's control signal from a remote controller (not shown) for external command input. The tuned broadcast signal is detected by the tuner 2 and then modulated, amplified and output into an intermediate frequency (IF) signal. The intermediate frequency (IF) signal is separated into an image intermediate frequency (PIF) and an acoustic intermediate frequency (SIF) by the P / S separation unit 3. The P / S separation unit 3 usually includes a surface acoustic wave (SAW) filter. When the acoustic detector 4 detects and outputs an acoustic signal from the acoustic intermediate frequency (SIF), the acoustic processor 5 detects the detected acoustic signal based on the control signal of the microprocessor 8 and controls the base and treble. Performs sound processing such as (Treble) and Volume, and outputs them. The sound amplifier 6 amplifies the sound processing signal according to the user's control signal processed by the sound processor 5 and outputs the sound signal through the speaker 7 as a sound signal that can be recognized by the user. This process is also the same as the conventional operation process.

In the present invention, the control is performed by referring to the signal transmitted from the noise sensor 9 in controlling the sound processor 5 in which sound processing is performed by the control of the microprocessor 8. As a result, the volume of the sound processor 5 is up / down by the microprocessor 8. Of course, the control signal is controlled by the microprocessor 8 by reading an adjustment value corresponding to the noise level from the memory 10, which has already stored the relationship between the noise and the volume of the signal input from the noise sensor 9. do. The reference data is provided by the volume setting unit 11. That is, the user is currently set through the volume control is the reference data. The volume setting unit 11 refers to a configuration in which a control by a general remote controller is performed or a control is performed by a button provided in a television main body. On the other hand, the memory 10 may not only store the correlation between the noise level and the volume, but may also store the correlation between the television and the user. To this end, it would be desirable to further add a distance sensor (not shown) to the configuration of the present invention.

On the other hand, the sound processor 5 is provided with an amplifying stage for the intermediate amplification under the control of the microprocessor (8). Accordingly, the intermediate amplified sound signal is further amplified while passing through the final sound amplifier 6.

In addition, a control switch 12 is provided between the noise sensor 9 and the microprocessor 8 so as to turn on / off a function of automatically adjusting the volume in response to the ambient noise by using buttons provided on the remote controller and the television main body. Would be desirable. This is because it may be better not to use it regularly where constant noise occurs.

Basically, when noise is detected below 30dB, the volume control value corresponding to 30dB is read from the memory to adjust the amplification degree of the voice processor. A value having a different amplification degree for each of 30dB to 60dB, 60dB to 90dB, and 90dB to 120dB is output from the memory 10, and the amplification degree is changed according to the noise level. That is, if the noise is very small and the volume is adjusted beyond that, the amplification is hardly achieved.

The present invention is not limited to the above-described embodiments, and it will be apparent that many modifications are possible by those skilled in the art within the technical spirit of the present invention.

As described above, the television that actively controls the volume in response to the ambient noise according to the present invention provides convenience because the user does not have to adjust the volume automatically because the volume is automatically adjusted according to the ambient noise.

In particular, even when viewing the television in a place where there is a large change in the sound, such as outside or public places, the sound can be automatically changed according to the surrounding environment so that the user does not have to adjust the remote controller in a cumbersome way.

Claims (3)

A tuner (2) for detecting a specific broadcast signal by the microprocessor (8) of the signals received through the antenna (1); An acoustic detector (4) for detecting an acoustic signal at the tuner (2); A sound processor (5) which processes and outputs the signal detected by the sound detector (4) and simultaneously amplifies the sound signal under the control of the microprocessor (8); An audio amplifier 6 for amplifying and outputting the signal output from the sound processor 5 through a speaker 7; A noise sensor 9 for detecting external noise; A microprocessor (8) for controlling the sound processor (5) by comparing the currently set volume level with the noise signal input from the noise sensor (9); And Memory 10 for storing the volume control value corresponding to the external noise level A television for actively controlling the volume in response to the ambient noise, characterized in that consisting of. The method of claim 1, wherein a control switch 12 is provided between the noise sensor 9 and the microprocessor 8 to stop the function of the noise sensor 9 in response to ambient noise. Television actively controls the volume. The microprocessor (8) is further connected with a distance sensor, and the memory (10) stores the correlation with the distance, noise, volume, the volume corresponding to the ambient noise, characterized in that Actively controlled television.