CN201995063U - Television set capable of actively lowering noise - Google Patents
Television set capable of actively lowering noise Download PDFInfo
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- CN201995063U CN201995063U CN2010205531339U CN201020553133U CN201995063U CN 201995063 U CN201995063 U CN 201995063U CN 2010205531339 U CN2010205531339 U CN 2010205531339U CN 201020553133 U CN201020553133 U CN 201020553133U CN 201995063 U CN201995063 U CN 201995063U
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- noise reduction
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- 238000005070 sampling Methods 0.000 claims abstract description 35
- 230000003321 amplification Effects 0.000 claims description 18
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 18
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a television set capable of actively lowering noise, which comprises a remote controller and a set body, wherein the set body comprises a noise sampling module, a reversed-phase amplifying module, a central signal processor module and a loudspeaker module which are sequentially connected in turn; the noise sampling module is used for sampling outside noise; the reversed-phase amplifying module is used for amplifying a sampled outside noise signal in a reversed-phase way; the central signal processor module is used for processing the noise signal amplified in the reversed-phase way and also inputting the noise signal after being processed to the loudspeaker module; and the loudspeaker module is used for converting the received noise signal into sound. The embodiment of the utility model has the beneficial effects that the sampled noise signal is processed in the reversed-phase way and is also input to a loudspeaker for emitting the sound; and because the phases of the sound and the outside noise are opposite and the amplitude values of the sound and the outside noise are approximately equal, most of or even all the outside noise can be counteracted, so that a user can normally watch television programs.
Description
Technical field
The utility model relates to a kind of television set, but relates in particular to a kind of television set of active noise reduction.
Background technology
Present television set acoustical quality is pretty good, disturbs but can not well resist ambient noise.When the user when watching TV, if the next door also has other staff to send very big noise in work or amusement, the pronunciation of television set just inevitably can be interfered, and causes the user not hear TV programme.In order to reduce ambient noise the user is watched the influence of TV programme, the user often has to the volume of television set is transferred to very big, causes the waste of the energy.Therefore, how to make the pronunciation of television set not be subjected to the interference of ambient noise, the degree that disturbed by ambient noise reduces, and is field of television letter problem to be solved.
Summary of the invention
The purpose of this utility model is, but a kind of television set of active noise reduction is provided, and makes television set pronunciation in use not be subjected to the interference of ambient noise, and the degree that disturbed by ambient noise reduces.
For achieving the above object, but the utility model embodiment provides a kind of television set of active noise reduction, comprises remote controller and fuselage;
Described fuselage comprises the noise sampling module that is linked in sequence successively, anti-phase amplification module, central signal processor module and loudspeaker module;
Described noise sampling module is used for to external world noise and takes a sample;
The ambient noise signal that described anti-phase amplification module is used for sampling is obtained carries out anti-phase amplification;
Described central signal processor module is handled described noise signal through anti-phase amplification, and the noise signal after will handling is input to described loudspeaker module;
Described loudspeaker module is converted into sound with the noise signal that receives.
Preferable, described fuselage also comprises the loud speaker of multichannel high directivity, and wherein each road loud speaker all is connected with an independent controlled start-up circuit, and perhaps, per No. four loud speakers are done as a wholely to be connected with an independent controlled start-up circuit.
Preferable, described noise sampling module comprises the noise sampling microphone of multichannel high directivity, each road described noise sampling microphone all is connected with a comparison circuit.
Preferable, described remote controller is provided with " noise reduction " button, is used for starting the active noise reduction function according to user's instruction.
Preferable, described remote controller is provided with " loud speaker " button, is used for starting one or more loud speaker according to user's instruction.
Implement the utility model embodiment, have following beneficial effect: with the sampling the anti-phase processing of noise signal and be input to the loud speaker sounding, because this sound is opposite with the ambient noise phase place, the range value approximately equal, therefore can offset major part even whole ambient noise, make the user can normally watch TV programme.Simultaneously, because the loud speaker of high directivity is controlled separately, the user can select to start one or more specific loud speaker, and other loud speaker cuts out, thereby the residing band of position of user is invested in the pronunciation of television set, and do not influence the normal life of other area peoples.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is a part of embodiment of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
But Fig. 1 is the airframe structure schematic diagram of television set one embodiment of the utility model active noise reduction;
But Fig. 2 is the fuselage schematic appearance of television set one embodiment of the utility model active noise reduction.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
But the utility model embodiment provides a kind of television set of active noise reduction, but below in conjunction with Fig. 1 to Fig. 2 the embodiment of the television set of the utility model active noise reduction is described.
But the television set of the utility model embodiment active noise reduction comprises fuselage and remote controller.Described remote controller is provided with " noise reduction " and " loud speaker " button, and described " noise reduction " button is used for starting the active noise reduction function according to user's instruction; Described " loud speaker " button is used for starting one or more loud speaker according to user's instruction.
But Fig. 1 is the airframe structure schematic diagram of television set one embodiment of the utility model active noise reduction.As shown in Figure 1, but the fuselage of the television set of present embodiment active noise reduction comprises: noise sampling module 11, anti-phase amplification module 12, CPU module 13 and loudspeaker module 14.
Described noise sampling module 11, anti-phase amplification module 12, central signal processor module 13, loudspeaker module 14 is linked in sequence successively.
Described noise sampling module 11 is used for to external world noise and takes a sample.
Concrete, described noise sampling module 11 comprises the noise sampling microphone of multichannel high directivity, the noise sampling microphone of described high directivity is taken a sample to the noise signal in its sensing scope.Each road described noise sampling microphone all is connected with a comparison circuit.Noise signal and predetermined threshold value that described comparison circuit is used for being sampled to compare, and when the noise signal that is sampled to during greater than predetermined threshold value, then described noise signal are input to described anti-phase amplification module 12.
Described anti-phase amplification module 12 is used for the ambient noise signal of input is carried out anti-phase amplification.
Described central signal processor module 13 is handled described noise signal through anti-phase amplification, and the noise signal after will handling is input to described loudspeaker module 14.
Concrete, 13 pairs of noise signals through anti-phase amplification of described central signal processor module are handled, make it range value approximately equal with ambient noise, and the noise sampling microphone that processed noise signal is input to and is sampled to this noise signal points to consistent loud speaker, so that offset the described identical regional noise that points to.
Described loudspeaker module 14, the noise signal that is used for receiving is converted into sound.
Concrete, described loudspeaker module 14 comprises the loud speaker of multichannel high directivity, its sensing scope zone all invested sound by the loud speaker of each road high directivity.Described each road loud speaker all is connected with an independent controlled start-up circuit, and perhaps, the multichannel loudspeaker of given number is done as a wholely to be connected with an independent controlled start-up circuit.For example: No. four loud speakers are done as a wholely to be connected with an independent controlled start-up circuit, and under the control of start-up circuit, this No. four loud speaker can cut out or start simultaneously.Like this, the user just can be by remote controller startup a certain road or multichannel loudspeaker wherein, and other loud speaker cuts out, and makes the pronunciation of television set only invest the residing band of position of user, and does not influence the normal life of other area peoples.
But the process of the television set active noise reduction of present embodiment active noise reduction is as follows:
After the user presses " noise reduction " button of remote controller, the active noise reduction function on of television set, the multichannel noise sampling microphone of described noise sampling module 11 is started working.When certain one or more noise sampling microphone sampling obtained surpassing the noise signal of predetermined threshold value, described noise signal was imported into described anti-phase amplification module 12 and carries out anti-phase amplification; Subsequently, be imported into described central signal processor module 13 by the noise signal of anti-phase amplification, described central signal processor module 13 is handled this noise signal, make it range value approximately equal with ambient noise, and the noise sampling microphone that processed noise signal is input to and is sampled to this noise signal points to consistent loud speaker, and described loud speaker is converted into sound with the noise signal that receives.Because the described noise signal of handling through sampling is opposite with extraneous noise signal phase place, the range value approximately equal, therefore most of noise is all cancelled out each other, and has reached the purpose of active noise reduction.
Implement the utility model embodiment, have following beneficial effect: with the sampling the anti-phase processing of noise signal and be input to the loud speaker sounding, because this sound is opposite with the ambient noise phase place, the range value approximately equal, therefore can offset major part even whole ambient noise, make the user can normally watch TV programme.In addition, the user starts one or more high loud speaker that points to by remote controller, makes the pronunciation of television set invest the residing band of position of user, and does not influence the normal life of other area peoples.
But Fig. 2 is the television receiver body schematic appearance of the utility model active noise reduction.As shown in Figure 2, described television receiver body 21 is provided with multichannel loudspeaker 22 and multichannel noise sampling microphone 23.Wherein, described loud speaker 22 can be corresponding one by one with described noise sampling microphone 23, and promptly each road loud speaker 22 all has one tunnel specific noise sampling microphone 23 to point to the scope unanimity with it; The multichannel loudspeaker 22 that also can be given number is corresponding with one tunnel specific noise sampling microphone 23, and promptly to point to scope and the described specific noise microphone 23 sensing scopes of taking a sample consistent for the integral body of the multichannel loudspeaker 22 of described given number.This corresponding relation makes active noise reduction respond well.
Above disclosed only is the utility model preferred embodiment, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (5)
1. but the television set of an active noise reduction comprises fuselage and remote controller, it is characterized in that:
Described fuselage comprises the noise sampling module that is linked in sequence successively, anti-phase amplification module, central signal processor module and loudspeaker module;
Described noise sampling module is used for to external world noise and takes a sample;
The ambient noise signal that described anti-phase amplification module is used for sampling is obtained carries out anti-phase amplification;
Described central signal processor module is handled described noise signal through anti-phase amplification, and the noise signal after will handling is input to described loudspeaker module;
Described loudspeaker module is converted into sound with the noise signal that receives.
2. but the television set of active noise reduction as claimed in claim 1, it is characterized in that: described loudspeaker module comprises the loud speaker of multichannel high directivity, wherein each road loud speaker all is connected with an independent controlled start-up circuit, perhaps, per No. four loud speakers are done as a wholely to be connected with an independent controlled start-up circuit.
3. but the television set of active noise reduction as claimed in claim 2 is characterized in that: described noise sampling module comprises the noise sampling microphone of multichannel high directivity, and each road described noise sampling microphone all is connected with a comparison circuit.
4. but the television set of active noise reduction as claimed in claim 2, it is characterized in that: described remote controller is provided with " noise reduction " button, is used for starting the active noise reduction function according to user's instruction.
5. but as the television set of each described active noise reduction of claim 2 to 4, it is characterized in that: described remote controller is provided with " loud speaker " button, is used for starting one or more loud speaker according to user's instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205531339U CN201995063U (en) | 2010-09-30 | 2010-09-30 | Television set capable of actively lowering noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205531339U CN201995063U (en) | 2010-09-30 | 2010-09-30 | Television set capable of actively lowering noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201995063U true CN201995063U (en) | 2011-09-28 |
Family
ID=44671537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205531339U Expired - Fee Related CN201995063U (en) | 2010-09-30 | 2010-09-30 | Television set capable of actively lowering noise |
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| CN (1) | CN201995063U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109166568A (en) * | 2018-11-19 | 2019-01-08 | 济南浪潮高新科技投资发展有限公司 | A kind of low-power consumption active active noise reduction system and method for fan |
| CN110689873A (en) * | 2018-07-06 | 2020-01-14 | 广州小鹏汽车科技有限公司 | Active noise reduction method, device, equipment and medium |
| CN112216264A (en) * | 2020-09-11 | 2021-01-12 | 深圳拓邦股份有限公司 | Sweeper noise reduction method and device, sweeper and computer readable storage medium |
-
2010
- 2010-09-30 CN CN2010205531339U patent/CN201995063U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110689873A (en) * | 2018-07-06 | 2020-01-14 | 广州小鹏汽车科技有限公司 | Active noise reduction method, device, equipment and medium |
| CN109166568A (en) * | 2018-11-19 | 2019-01-08 | 济南浪潮高新科技投资发展有限公司 | A kind of low-power consumption active active noise reduction system and method for fan |
| CN112216264A (en) * | 2020-09-11 | 2021-01-12 | 深圳拓邦股份有限公司 | Sweeper noise reduction method and device, sweeper and computer readable storage medium |
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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: 20110928 Termination date: 20170930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |