CN201123123Y - Audio playback device for eliminating exterior noise - Google Patents
Audio playback device for eliminating exterior noise Download PDFInfo
- Publication number
- CN201123123Y CN201123123Y CNU2007201959938U CN200720195993U CN201123123Y CN 201123123 Y CN201123123 Y CN 201123123Y CN U2007201959938 U CNU2007201959938 U CN U2007201959938U CN 200720195993 U CN200720195993 U CN 200720195993U CN 201123123 Y CN201123123 Y CN 201123123Y
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- CN
- China
- Prior art keywords
- loudspeaker
- microphone
- housing
- noise
- ambient noise
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a playback device used for eliminating the ambient noise, which comprises a noise reducing mechanism at least provided with a filtering reversed phase unit, an amplifier and a power supply unit and a sound output mechanism at least provided with a casing body. A first loudspeaker connected with an amplifier, a second loudspeaker connected with an external player and a microphone contained in the casing body and connected with the filtering reversed phase unit are arranged on one end surface of the casing body, to ensure that the casing body can utilize the first loudspeaker, the second loudspeaker and the microphone to define a cavity chamber. Thereby, the noise reducing mechanism can be utilized to be matched with the microphone and the first loudspeaker, to ensure that the music can not be mixed with the noise signal, moreover the play of the music can be integrally reserved, to ensure that when listening to music, the user can not be disturbed by the noise of the external environment, and simultaneously, the efficacies that the electronic material adoption can be reduced, the volume can be minified, the manufacturing cost and the energy consumption can be reduced can be achieved.
Description
Technical field
The utility model is about a kind of improvement of playback structure, especially a kind of music that makes of finger is no longer mixed with noise signal, thereby the broadcast of complete reservation music, allow the user when listoning music, not be subjected to the noise jamming of external environment, and reach the playback set of the elimination ambient noise that reduces electronics materials, reduced volume, reduction manufacturing cost and the effect that cuts down the consumption of energy simultaneously.
Background technology
The major technique of general prior art noise reduction sound audio device is with active mode denoise sound know-why (Active Noise Canceling, be called for short ANC) apply on the stereophone, as shown in Figure 1, its primary structure includes: loudspeaker 4, microphone 5 and ANC noise reduction sound control molding piece 6, wherein respectively have one group loudspeaker 4 to be placed in side by side in the left and right earphone with microphone 5, ANC noise reduction sound circuit module 6 then comprises the filtering rp unit 61 and amplifier 62 and a member such as power-supply unit 63 of two groups of independent runnings;
During running, be by a left side, the ccontaining microphone 5 of right earphone receives the external environment condition noise signal, by ANC noise reduction sound circuit module 6, with a left side, the noise that right microphone 5 is picked up is transferred to filtering rp unit 61 and is carried out filtering and anti-phase processing, the frequency noise that elder generation's filtering people ear can't be experienced, next the more sensitive noise ripple of people's ear is carried out 180 ° of anti-phase processing, by amplifier 62 anti-phase noise signal is amplified again, and mix with music signal that external music player 7 is imported into, at last again by a left side, right horn 4 is sent anti-phase noise ripple together with the payment external noise, transmits music simultaneously in the lump in people's ear.
Yet, after the detailed sight prior art constructions, be not difficult to realize that it remains a little weak point, now reason is summarized as follows:
(1) prior art has been used two groups of independently amplifiers 62, in order at amplifying by the noise signal of the anti-phase processing of filtering, machine plate is long-pending can't to be dwindled yet this design but causes, and because the electronics materials and parts are more, production cost thereby higher, also because the power consumption pressure is bigger, relatively also can influence the service time of product simultaneously.
(2) secondly, in the prior art since with music with after anti-phase noise ripple mixes, deliver to loudspeaker 4 broadcasts more together, very likely cause music sneaked into by anti-phase noise ripple, cause the tone color of some frequency range unintelligible.
The utility model content
Main purpose of the present utility model is to be, can utilize noise reduction sound mechanism to cooperate microphone music no longer to be mixed with noise signal with first loudspeaker, and the broadcast of complete reservation music, allow the user when listoning music, be not subjected to the noise jamming of external environment, and reach the effect that reduces electronics materials, reduced volume, reduction manufacturing cost and cut down the consumption of energy simultaneously.
For reaching above-mentioned purpose, the utility model provides a kind of playback set of eliminating ambient noise, comprises a noise reduction sound mechanism that has filtering rp unit, amplifier and power-supply unit at least; And the voice output mechanism that has a housing at least, an end face of this housing is provided with first loudspeaker that are connected with amplifier, second loudspeaker that are connected with an external played device, and is located on the housing at least and the microphone that is connected with the filtering rp unit, and makes and utilize first and second loudspeaker and microphone to define a chamber in this housing.
Wherein, noise reduction sound mechanism is arranged in the housing of voice output mechanism or in conjunction with being arranged in the external played device, voice output mechanism is single head-receiver or bi-telephone.The position that housing is provided with first and second loudspeaker is to be provided with out line, and in housing moulding or outer setting have can ccontaining microphone the location division.Microphone is the position of being located at contiguous first and second loudspeaker, and microphone is to have a pickup end, and this pickup end is that correspondence is located in the housing or outside the housing.Voice output mechanism can be provided with at least one the 3rd loudspeaker.
Make the utility model reach following effect like this:
(1) use of minimizing electronics material has reduced manufacturing cost.
(2) power consumption is lower, can extend working time.
(3) music is no longer mixed with the noise inversion signal, can complete reservation music player imports the signal of loudspeaker into.
(4) machine plate is long-pending littler, meets the compact trend of digital music playing device.
Description of drawings
Fig. 1 is the circuit box schematic diagram of prior art.
Fig. 2 is a block schematic diagram of the present utility model.
Fig. 3 is the generalized section of the utility model voice output mechanism.
Fig. 4 is a utilization view of the present utility model.
Fig. 5 is another embodiment schematic diagram of the utility model voice output mechanism.
Fig. 6 is another embodiment schematic diagram that the utility model microphone is provided with state.
Wherein:
4 existing loudspeaker 5 existing microphone 6 existing noise reduction sound control molding pieces
61 existing filtering rp unit 62 existing amplifier 63 existing power supply feeding units
7 existing music players
11 filtering rp units, 2 voice output mechanisms, 12 amplifiers
13 power-supply units, 20 housings 201 go out line
203a location division, 202 sound holes, 203 location division
21 first loudspeaker, 22 second loudspeaker, 23 microphones
231 pickup ends, 24 chambers 25 the 3rd loudspeaker
3 external played devices, 30 controlling organizations, 301 switch portion
Embodiment
Shown in Fig. 2,3,4,5, it is respectively another embodiment schematic diagram of the generalized section of block schematic diagram of the present utility model, the utility model voice output mechanism, utilization view of the present utility model and the utility model voice output mechanism.As shown in the figure: the utility model is a kind of playback set of eliminating ambient noise, is made of a noise reduction sound mechanism 1 and a voice output mechanism 2 at least.
Above-mentioned noise reduction sound mechanism 1 has amplifier 12, and power-supply unit 13 that connects filtering rp unit 11 and amplifier 12 that filtering rp unit 11, connect filtering rp unit 11 at least.
This voice output mechanism 2 has a housing 20 at least, first loudspeaker 21 that one correspondence is located at 20 1 end faces of housing and is connected with amplifier, one correspondence is located at 20 1 end faces of housing and is supplied to connect second loudspeaker 22 of an external played device 3, reaching one is located on the housing 20 and the microphone 23 that is connected with filtering rp unit 11, and make in this housing 20 and utilize first, two loudspeaker 21,22 with microphone 23 define a chamber 24, wherein, 20 1 end faces of this housing are provided with first, two loudspeaker 21,22 position is provided with out line 201, and offer a sound hole 202 in these housing 20 another end faces, and in housing 20, form corresponding sound hole 202 and in order to the location division 203 of ccontaining microphone 23, can be with microphone 23 and first, two loudspeaker 21,22 separate, to avoid sharing same chamber 24, and this microphone 23 have one to should sound hole 202 in order to receive the pickup end 231 of external noise signal, and these pickup end 231 correspondences are located at the other end of housing 20, or the chamber 24 of corresponding housing 20, this microphone 23 can be located at contiguous first in addition, two loudspeaker 21,22 position.In this way, utilize above-mentioned structure to constitute the playback set of a brand-new elimination ambient noise.
Yet said structure only is to be one of better embodiment of the present utility model, when first loudspeaker 21 of the present utility model, second loudspeaker 22 and microphone 23 and housing 20 use when combining in reality, be not limited to above-mentioned set-up mode, and can carry out the setting of appropriate location according to different service conditions.
When the utility model in when utilization, can be with this noise reduction sound mechanism 1 according in the required housing 20 that is arranged at voice output mechanism 2, maybe this noise reduction sound mechanism 1 combination is arranged in the external played device 3, also can be with this noise reduction sound mechanism 1 in conjunction with being arranged in the controlling organization 30 of external played device 3, and this controlling organization 30 is provided with a switch portion 301 that is connected with power-supply unit 13, as shown in Figure 4 in order to power-on, start noise reduction sound mechanism, and this controlling organization 30 is connected with voice output mechanism 2 simultaneously; And this voice output mechanism 2 can be a single head-receiver or a bi-telephone, is example with the bi-telephone in the present embodiment.
When using, by sound source wire 4 music signal is directly imported the music of external played device 3 into second loudspeaker 22, and after power-supply unit 13 starts, this microphone 23 can utilize its pickup end 231 initiatively to pick up ambient noise, and import the ambient noise that left and right dual track is picked up into noise reduction sound mechanism 1, make extraneous noise through filtering rp unit 11 and amplifier 12 handle after, anti-phase signal is sent to first loudspeaker 21 produces anti-phase noise ripple, to offset the noise that the outside is imported into, constitute a complete noise reduction sound message system like this.
In addition, as shown in Figure 5, an end face of these voice output mechanism 2 corresponding housing 20 cooperation in addition is provided with at least one the 3rd loudspeaker 25, and on housing 20, cooperate simultaneously a plurality ofly to go out line 201 and use, and when the 3rd loudspeaker 25 were provided with, the utility model possessed the noise reduction sound mechanism of multichannel function; Make the utility model can meet the use of different utilization states like this.
As shown in Figure 6, the utility model microphone is provided with another embodiment schematic diagram of state.As shown in the figure: microphone 23 of the present utility model is except that can be being provided with the kenel of above-mentioned Fig. 3, also can be at the location division 203a of housing 20 outer setting in order to ccontaining this microphone 23, this microphone 23 is separated with first and second loudspeaker 21,22, to avoid sharing same chamber 24, and this microphone 23 have a pair of should sound hole 202 in order to receive the pickup end 231 of external noise signal, and this pickup end 231 can expose on the housing 2, picks up ambient noise by pickup end 231.Can receive external noise signal so, equally and reach the above-mentioned effect of putting forward.
As shown in the above description, the utility model is to utilize these first loudspeaker 21 to play anti-phase noise ripple, and second loudspeaker 22 are then only in order to the playing back music signal; Therefore, can effectively improve prior art music and anti-phase noise audio mixing really after, the not good enough problem of the tone color that may have, and after improving amplifier 12 merged and become a group, thus the use that reduces the electronics material is to reduce the long-pending and manufacturing cost of machine plate.
Make the utility model reach following effect like this:
(1) use of minimizing electronics material has reduced manufacturing cost.
(2) power consumption is lower, can extend working time.
(3) music is no longer mixed with the noise inversion signal, can complete reservation music player imports the signal of loudspeaker into.
(4) machine plate is long-pending littler, meets the compact trend of digital music playing device.
In sum, the playback set of the utility model elimination ambient noise can effectively improve the various shortcoming of prior art, can utilize noise reduction sound mechanism to cooperate microphone music no longer to be mixed with noise signal with first loudspeaker, and the broadcast of complete reservation music, allow the user when listoning music, no longer be subjected to the noise jamming of external environment, and reach the effect that reduces electronics materials, reduced volume, reduction manufacturing cost and cut down the consumption of energy simultaneously, and then make the utility model produce the needs that can more progressive, more practical, more meet the user.
Claims (11)
1, a kind of playback set of eliminating ambient noise is characterized in that including:
A noise reduction sound mechanism has amplifier, and power-supply unit that connects filtering rp unit and amplifier that filtering rp unit, one connect the filtering rp unit at least; And
A voice output mechanism has at least that a housing, first loudspeaker of being located on the housing and being connected with amplifier, one are located on the housing and for second loudspeaker that connect an external played device, and microphone that is connected with the filtering rp unit.
2, the playback set of elimination ambient noise according to claim 1 is characterized in that: this noise reduction sound mechanism is arranged in the housing of voice output mechanism.
3, the playback set of elimination ambient noise according to claim 1 is characterized in that: this noise reduction sound mechanism is arranged in the external played device for combination.
4, the playback set of elimination ambient noise according to claim 1 is characterized in that: this voice output mechanism is a single head-receiver.
5, the playback set of elimination ambient noise according to claim 1 is characterized in that: this voice output mechanism is a bi-telephone.
6, the playback set of elimination ambient noise according to claim 1 is characterized in that: the position that this housing is provided with first and second loudspeaker is provided with out line, and forms the location division of ccontaining microphone in housing.
7, the playback set of elimination ambient noise according to claim 1 is characterized in that: the position that this housing is provided with first and second loudspeaker is provided with out line, and is provided with the location division of ccontaining microphone in this outside.
8, the playback set of elimination ambient noise according to claim 1 is characterized in that: this microphone has a pickup end, and this pickup end correspondence is located in the housing.
9, the playback set of elimination ambient noise according to claim 1 is characterized in that: this microphone has a pickup end, and this pickup end correspondence is outside housing.
10, according to the playback set of the described elimination ambient noise of claim 1, it is characterized in that: this microphone has a pickup end, and this microphone is located at the position of contiguous first and second loudspeaker.
11, the playback set of elimination ambient noise according to claim 1 is characterized in that: this voice output mechanism is provided with at least one the 3rd loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201959938U CN201123123Y (en) | 2007-12-04 | 2007-12-04 | Audio playback device for eliminating exterior noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201959938U CN201123123Y (en) | 2007-12-04 | 2007-12-04 | Audio playback device for eliminating exterior noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201123123Y true CN201123123Y (en) | 2008-09-24 |
Family
ID=40010363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201959938U Expired - Fee Related CN201123123Y (en) | 2007-12-04 | 2007-12-04 | Audio playback device for eliminating exterior noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201123123Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103862A (en) * | 2010-12-29 | 2011-06-22 | 中亿源科技(深圳)有限公司 | Method for suppressing outdoor environmental noises in indoor space |
| CN103118319A (en) * | 2013-01-16 | 2013-05-22 | 深圳市冠旭电子有限公司 | Integrated minitype noise reduction horn |
| US8452029B2 (en) | 2009-08-17 | 2013-05-28 | Amtran Technology Co., Ltd. | Audio system, electronic device and car audio system |
| CN103743466A (en) * | 2013-12-23 | 2014-04-23 | 广西科技大学 | Microphone for measuring sound pressure value |
| CN104942810A (en) * | 2015-04-29 | 2015-09-30 | 成都陌云科技有限公司 | Intelligent robot capable of denoising |
| CN107113500A (en) * | 2014-08-28 | 2017-08-29 | 法国布雷维茨公司 | Realize the self-configuring of the equipment of ambient noise eliminating machine |
| CN110896514A (en) * | 2019-12-20 | 2020-03-20 | 晨诚兴科技深圳有限公司 | Noise reduction earphone |
-
2007
- 2007-12-04 CN CNU2007201959938U patent/CN201123123Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8452029B2 (en) | 2009-08-17 | 2013-05-28 | Amtran Technology Co., Ltd. | Audio system, electronic device and car audio system |
| CN102103862A (en) * | 2010-12-29 | 2011-06-22 | 中亿源科技(深圳)有限公司 | Method for suppressing outdoor environmental noises in indoor space |
| CN102103862B (en) * | 2010-12-29 | 2015-04-22 | 中亿源科技(深圳)有限公司 | Method for suppressing outdoor environmental noises in indoor space |
| CN103118319A (en) * | 2013-01-16 | 2013-05-22 | 深圳市冠旭电子有限公司 | Integrated minitype noise reduction horn |
| CN103743466A (en) * | 2013-12-23 | 2014-04-23 | 广西科技大学 | Microphone for measuring sound pressure value |
| CN107113500A (en) * | 2014-08-28 | 2017-08-29 | 法国布雷维茨公司 | Realize the self-configuring of the equipment of ambient noise eliminating machine |
| CN104942810A (en) * | 2015-04-29 | 2015-09-30 | 成都陌云科技有限公司 | Intelligent robot capable of denoising |
| CN110896514A (en) * | 2019-12-20 | 2020-03-20 | 晨诚兴科技深圳有限公司 | Noise reduction earphone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080924 Termination date: 20111204 |