CN203423745U - Television set capable of automatically adjusting volume according to environment noise - Google Patents
Television set capable of automatically adjusting volume according to environment noise Download PDFInfo
- Publication number
- CN203423745U CN203423745U CN201320560469.1U CN201320560469U CN203423745U CN 203423745 U CN203423745 U CN 203423745U CN 201320560469 U CN201320560469 U CN 201320560469U CN 203423745 U CN203423745 U CN 203423745U
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- television set
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- Control Of Amplification And Gain Control (AREA)
- Television Receiver Circuits (AREA)
Abstract
The utility model discloses a television set capable of automatically adjusting volume according to environment noise. The television set comprises an SOC chip, a power amplifier, a phase delay unit, a loudspeaker, a sound gatherer, a gain adjusting unit, a comparator and a counter. The SOC chip is connected with the input terminals of the phase delay unit and the power amplifier; the output terminal of the power amplifier is connected with the loudspeaker; the sound gatherer is connected with the input terminal of the gain adjusting unit; the output terminal of the gain adjusting unit is connected with one input terminal of the comparator; the other input terminal of the comparator is connected with the output terminal of the phase delay unit; the output terminal of the comparator is connected with the input terminal of the counter; and the output terminal of the counter is connected with the SOC chip. The above structure is employed, acquired sound signals pass through the gain adjusting unit and then are transmitted to the comparator, the levels of the sound signals are compared to the levels of the audio signals transmitted to the comparator after phase delay, high or low levels output by the comparator are accumulated by the counter, when the levels exceed preset values, the volume of the television set is automatically adjusted.
Description
Technical field
The utility model relates to television set, relates in particular to a kind ofly can automatically adjust according to environmental noise the television set of volume.
Background technology
Along with the raising of people's living standard, every household is all gathered around and is had an even multiple TV set, while lying fallow for people, watches.But people are when watching TV, if phone has rung suddenly, must manually the sound of television set be turned down, or turn off television set, or away from television set, just conveniently answer words, cumbersome like this.
Summary of the invention
The purpose of this utility model is to provide a kind of convenient and swift, can automatically adjust according to environmental noise the television set of volume.
For achieving the above object, the utility model is by the following technical solutions: a kind ofly can automatically adjust according to environmental noise the television set of volume, it comprises SOC chip, power amplifier, phase delay cell, loud speaker, sound collector, gain adjusting unit, comparator sum counter; The output of described SOC chip is connected with the input of phase delay cell, the input of power amplifier respectively, the output of power amplifier is connected with loud speaker, sound collector gathers the sound of loud speaker and the environment of televising, and sound is sent to the input of gain adjusting unit, the output of gain adjusting unit is connected with the input of comparator, another input of comparator is connected with the output of phase delay cell, the output of comparator is connected with the input of counter, and the output of counter is connected with the input of SOC chip.
The utility model adopts above structure, sound collector collects outside voice signal and be sent to comparator after gain is adjusted, this voice signal comprises voice signal and the environmental noise signal that loud speaker sends, simultaneously, the audio signal of television set is through the delay disposal of phase delay cell, be resent to comparator, in comparator, voice signal and audio signal are carried out to the level comparison of signal, counter adds up to high level or the low level of comparator output again, surpass Preset Time SOC chip automatically adjust the volume of the machine, lower than Preset Time SOC chip be failure to actuate, the life being convenient for people to.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
To be that the utility model is a kind of can adjust according to environmental noise the functional block diagram of the television set of volume to Fig. 1 automatically.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail:
As shown in Figure 1, the utility model is a kind of can adjust automatically according to environmental noise the television set of volume, and it comprises SOC chip 1, power amplifier 2, phase delay cell 3, loud speaker 4, sound collector 5, gain adjusting unit 6, comparator 7 sum counters 8, the output of described SOC chip 1 respectively with the input of phase delay cell 3, the input of power amplifier 2 connects, the output of power amplifier 2 is connected with loud speaker 4, sound collector 5 gathers the sound of loud speaker 4 and the environment of televising, and sound is sent to the input of gain adjusting unit 6, the output of gain adjusting unit 6 is connected with the input of comparator 7, another input of comparator 7 is connected with the output of phase delay cell 3, the output of comparator 7 is connected with the input of counter 8, the output of counter 8 is connected with the input of SOC chip 1.
The utility model adopts above structure, and SOC chip 1 is sent to audio signal after power amplifier 2 amplifies and is sent to loud speaker 4, and loud speaker 4 is sounded.Sound collector 5 gathers outside voice signal, and the voice signal of this collection comprises voice signal and the environmental noise signal that loud speaker 4 sends, and the voice signal of collection enters gain adjusting unit 6 and carries out the strong and weak adjustment of corresponding signal.After adjustment, gain adjusting unit 6 is sent to comparator 7 by voice signal, and meanwhile, the audio signal of television set is after the delay disposal of phase delay cell 3, be resent to comparator 7, the audio signal of the voice signal of collection and television set carried out to the level comparison of signal.When environment noiselessness, the sound signal level of collection and the audio signal level of television set are consistent, and counter 8 is failure to actuate with SOC chip 1, and volume remains unchanged, while there is noise in environment, the sound signal level gathering is by the audio signal level higher or lower than television set, comparator 7 will be exported high level to counter 8, counter 8 operation that adds up, in counter 8, be preset with a time value, this Preset Time is generally in the scope of 200ms ~ 1s, if the duration of high level is greater than Preset Time, be illustrated in and in the environment of televising, continue for some time the interior environmental noise that all exists, SOC chip 1 will reduce volume automatically to a set point of storing in it, this set point is generally between 20 ~ 40 decibels, neither affect the people who talks and do not affect again the people who sees TV, after environmental noise disappears, the sound signal level gathering and the audio signal level of television set are consistent, comparator 7 by output low level to counter 8, the operation that adds up of 8 pairs of low levels of counter, if the low level duration is greater than Preset Time, be illustrated in the environment of televising and continue for some time the interior environmental noise that all do not have, SOC chip 1 will recover former volume automatically, if high level or the low duration of comparator output are less than Preset Time, SOC chip 1 is failure to actuate.
Claims (1)
1. can according to environmental noise, automatically adjust a television set for volume, it is characterized in that: it comprises SOC chip, power amplifier, phase delay cell, loud speaker, sound collector, gain adjusting unit, comparator sum counter; The output of described SOC chip is connected with the input of phase delay cell, the input of power amplifier respectively, the output of power amplifier is connected with loud speaker, sound collector gathers the sound of loud speaker and the environment of televising, and sound is sent to the input of gain adjusting unit, the output of gain adjusting unit is connected with the input of comparator, another input of comparator is connected with the output of phase delay cell, the output of comparator is connected with the input of counter, and the output of counter is connected with the input of SOC chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320560469.1U CN203423745U (en) | 2013-09-10 | 2013-09-10 | Television set capable of automatically adjusting volume according to environment noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320560469.1U CN203423745U (en) | 2013-09-10 | 2013-09-10 | Television set capable of automatically adjusting volume according to environment noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203423745U true CN203423745U (en) | 2014-02-05 |
Family
ID=50022834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320560469.1U Expired - Fee Related CN203423745U (en) | 2013-09-10 | 2013-09-10 | Television set capable of automatically adjusting volume according to environment noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203423745U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141638A (en) * | 2014-07-29 | 2014-11-12 | 浪潮集团有限公司 | Fan device achieving active noise reduction |
-
2013
- 2013-09-10 CN CN201320560469.1U patent/CN203423745U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141638A (en) * | 2014-07-29 | 2014-11-12 | 浪潮集团有限公司 | Fan device achieving active noise reduction |
| CN104141638B (en) * | 2014-07-29 | 2017-03-22 | 浪潮集团有限公司 | Fan device achieving active noise reduction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20170910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |