CN207117878U - The reaction type noise cancelling headphone of sound leakage is effectively controlled using acoustic conductance tubular construction - Google Patents
The reaction type noise cancelling headphone of sound leakage is effectively controlled using acoustic conductance tubular construction Download PDFInfo
- Publication number
- CN207117878U CN207117878U CN201720560817.3U CN201720560817U CN207117878U CN 207117878 U CN207117878 U CN 207117878U CN 201720560817 U CN201720560817 U CN 201720560817U CN 207117878 U CN207117878 U CN 207117878U
- Authority
- CN
- China
- Prior art keywords
- ante
- acoustic
- chamber
- cover
- reaction type
- Prior art date
- 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.)
- Active
Links
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The application is related to the reaction type noise cancelling headphone for effectively controlling sound to leak using acoustic conductance tubular construction.Including auricular concha, include ante-chamber and big back cavity in the auricular concha, the cover for separating ante-chamber and big back cavity is provided with the auricular concha, the cover is provided with sounding drive module, the sounding drive module includes drive circuit board, electrically connected with the drive circuit board and positioned at the sounding component of ante-chamber side, side on the cover with respect to ante-chamber, which is provided with, to be used to pick up ambient sound and positioned at pickup member, acoustic conducting pipe is additionally provided with the cover, the acoustic conducting pipe is extended in big back cavity from cover with respect to the side of ante-chamber makes the big back cavity and ante-chamber UNICOM.Increase acoustic conductance tubular construction inside the auricular concha of earphone, allow sound mainly by acoustic conducting pipe leakage, weaken other leakage ways for even eliminating sound, so as to play the effect of control sound leakage, and effective wearing overcome because of user and use habit produce different degrees of sound leakage problem.
Description
【Technical field】
Reaction type noise cancelling headphone is the utility model is related to, more particularly to effectively controls what sound leaked using acoustic conductance tubular construction
Reaction type noise cancelling headphone.
【Background technology】
With the high speed development of modern industry, noise is also into the very important pollution problem of today's society, in order to protect
People's ear under big noise circumstance is injury-free, and noise cancelling headphone just arises at the historic moment.Active noise cancelling headphone design is main
There are two kinds of reaction type and feed forward type.For reaction type noise cancelling headphone, reaction type noise cancelling headphone be by the way that microphone is positioned over before
The noise signal of chamber pickup the inside, then passes to loudspeaker by PCB by this signal, by PCB processing, loudspeaker is sent and is made an uproar
The anti-phase signal of sound, and then balance out the effect that the noise inside ante-chamber reaches noise reduction.Because microphone is direct pickup human ear
The noise signal inside ante-chamber heard, so reaction type noise cancelling headphone is not susceptible to the influence of use environment.
But in existing earphone, the sound leakage way of earphone has a variety of, the mode worn by user and the habit used
It is used to cause to produce different sound leakages when using, and it is difficult to the knot for going design to solve leakage for each leakage problem
Structure, and complicatedization of whole earphone can be made.
【The content of the invention】
To solve the problems, such as that sound leakage is unmanageable in earphone in the prior art, the utility model is provided using sound
Guide-tube structure effectively controls the reaction type noise cancelling headphone that sound leaks.
The utility model is achieved through the following technical solutions：
The reaction type noise cancelling headphone of sound leakage, including auricular concha are effectively controlled using acoustic conductance tubular construction, is wrapped in the auricular concha
Include ante-chamber and big back cavity, be provided with the cover for separating ante-chamber and big back cavity in the auricular concha, relative ante-chamber on the cover
Side be provided with and be used to picking up ambient sound and positioned at pickup member, be additionally provided with acoustic conducting pipe on the cover, the acoustic conducting pipe is from face
The side of the relative ante-chamber of lid, which is extended in big back cavity, makes the big back cavity and ante-chamber UNICOM.
The reaction type noise cancelling headphone as described above for effectively controlling sound to leak using acoustic conductance tubular construction, the acoustic conducting pipe position
In the lower section of pickup member and close to pickup member.
The as described above reaction type noise cancelling headphone for effectively controlling sound to leak using acoustic conductance tubular construction, in the acoustic conducting pipe
Damping layer is provided with positioned at one end of the ante-chamber.
The reaction type noise cancelling headphone of sound leakage is effectively controlled using acoustic conductance tubular construction as described above, is set on the cover
There is the acoustic conducting pipe described in two, and two acoustic conducting pipes are arranged side by side.
The reaction type noise cancelling headphone as described above for effectively controlling sound to leak using acoustic conductance tubular construction, the auricular concha also wrap
Include the auricular concha bonnet on rear side of the cover, the auricular concha protheca on front side of cover, the auricular concha bonnet is to side concave shape
Into described big back cavity.
The reaction type noise cancelling headphone of sound leakage is effectively controlled using acoustic conductance tubular construction as described above, is set on the cover
Have a sounding drive module, the sounding drive module includes drive circuit board, electrically connect and be located at the drive circuit board before
The sounding component of chamber side, the side of the relatively described sounding drive module of the cover are provided with raised circular mounting portion, and
The middle part in the circular mounting portion is provided with installation cavity, is provided with the installation cavity some circumferentially and another with the cover
The acoustic aperture of side connection, the bonnet coordinated with the circular mounting portion is additionally provided with the cover.
The reaction type noise cancelling headphone as described above for effectively controlling sound to leak using acoustic conductance tubular construction, the auricular concha are interior also
Including reaction type noise reduction module, the reaction type noise reduction module electrically connects with the sounding drive module, and the sounding drives mould
Block includes sounding component in the installation cavity, is connected to the driving electrically connected on bonnet lateral surface with the sounding component
Circuit board, and the sounding component is relative with the acoustic aperture in the installation cavity.
The as described above reaction type noise cancelling headphone for effectively controlling sound to leak using acoustic conductance tubular construction, the bonnet it is outer
It is additionally provided with recess on surface, the reaction type noise reduction module also includes being electrically connected with the drive circuit board on recess
Feedback circuit plate, the pickup is first to be connected with the feedback circuit plate.
The reaction type noise cancelling headphone as described above for effectively controlling sound to leak using acoustic conductance tubular construction, the feedback circuit
The switch and display lamp of the noise reduction module work of control reaction type are additionally provided with plate.
Compared with prior art, the utility model has the following advantages：
1st, the utility model makes the ante-chamber of earphone pass through acoustic conducting pipe by increasing acoustic conductance tubular construction inside the auricular concha of earphone
With the connection of big back cavity (big back cavity leads directly to the external world and is connected), sound is allowed mainly by acoustic conducting pipe leakage, to weaken and even eliminate
Other leakage ways of sound, so as to play the effect of control sound leakage, and effectively overcome because user wearing and
Use habit produces different degrees of sound leakage problem.
2nd, acoustic conducting pipe can allow the ambient noise of outside to be directly entered earphone ante-chamber by acoustic conducting pipe, make in earphone ante-chamber
External environment noise is arrived in the effective pickup of pickup member, to ensure that most environmental noise is picked, then coordinates reaction type to drop
Make an uproar module, noise is eliminated, improves the anti-acoustic capability of this product.
3rd, because the ante-chamber in auricular concha and big back cavity separate, the mistake of pickup member in ante-chamber in earphone normal work
Cheng Zhonghui is influenceed by air pressure change, and the pressure change in ante-chamber can be easily damaged pickup member, increase acoustic conducting pipe make before with
Big back cavity connection (big back cavity leads directly to the external world and is connected), equivalent to by the air pressure balance in ante-chamber, it can effectively protect pickup first,
Make pickup member can permanently effective work, increase the durable performance of this product.
【Brief description of the drawings】
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structural representation of the utility model earphone；
Fig. 2 is the structural representation of auricular concha；
Fig. 3 is the structural blast schematic diagram one of auricular concha；
Fig. 4 is the structural blast schematic diagram two of auricular concha；
Fig. 5 is the utility model acoustics artificial circuit figure.
【Embodiment】
In order that technical problem, technical scheme and beneficial effect that the utility model solves are more clearly understood, below
With reference to drawings and Examples, the utility model is further elaborated.It is it should be appreciated that described herein specific real
Example is applied only to explain the utility model, is not used to limit the utility model.
The utility model is achieved through the following technical solutions：
As shown in Figures 1 to 4, the reaction type noise cancelling headphone of sound leakage, including ear are effectively controlled using acoustic conductance tubular construction
Shell 1, ante-chamber 1012 and big back cavity 1011 are included in the auricular concha 1, is provided with the auricular concha 1 by ante-chamber 1012 and big back cavity
1011 covers 102 separated, the cover 102 are provided with sounding drive module 201, and the sounding drive module 201 includes
Drive circuit board 2012, electrically connected with the drive circuit board 2012 and be located at the sounding component 2011 of the side of ante-chamber 1012, institute
State the side on cover 102 with respect to ante-chamber 1012 to be provided with for picking up ambient sound and positioned at pickup member, it is characterised in that described
Acoustic conducting pipe 5 is additionally provided with cover 102, side of the acoustic conducting pipe 5 from cover 102 with respect to ante-chamber 1012 extends to big back cavity 1011
Inside make the big back cavity 1011 and the UNICOM of ante-chamber 1012.Because different users wears the custom difference of earphone, earphone is with making
The situation of the ear fitting of user also can be different from angle, let out so as to which earphone can produce various forms of sound in use
Leakage, the utility model by increasing acoustic conductance tubular construction inside the auricular concha of earphone, make the ante-chamber of earphone by acoustic conducting pipe with it is big after
Chamber connection (big back cavity leads directly to the external world and is connected), allows sound mainly by acoustic conducting pipe leakage, to weaken and even eliminate sound
Other leakage ways, so as to play control sound leakage effect, and effectively overcome because user wearing and using practise
It is used to produce different degrees of sound leakage problem.Allow the ambient noise of outside to be directly entered earphone ante-chamber by acoustic conducting pipe, make
External environment noise is arrived in the effective pickup of pickup member in earphone ante-chamber, to ensure that most environmental noise is picked, carries
The anti-acoustic capability of high this product.
Further, since the ante-chamber in auricular concha separates with big back cavity, the pickup member in ante-chamber is in earphone normal work
During can be influenceed by air pressure change, the pressure change in ante-chamber can be easily damaged pickup member, increase acoustic conducting pipe make
The preceding connection with big back cavity (big back cavity leads directly to the external world and is connected), equivalent to by the air pressure balance in ante-chamber, it can effectively protect and pick up
Tone, make pickup member can permanently effective work, increase the durable performance of this product.
In more detail, the acoustic conducting pipe 5 is located at the lower section of pickup member and close to pickup member.Pass through acoustic conducting pipe 5
Penetrate into the environmental noise of ante-chamber directly can be picked up by pickup member, the pickup effect of pickup member be improved, so as to improve this
The noise reduction of product.One end in the acoustic conducting pipe 5 positioned at the ante-chamber 1012 is provided with damping layer.The damping layer plays one
Fixed off beat effect, higher environmental noise can be weakened during penetrating, then picked up by pickup member and passed through feedback circuit
Plate carries out noise reduction.The cover 102 is provided with the acoustic conducting pipe 5 described in two, and two acoustic conducting pipes 5 are arranged side by side.Can be according to product
Model and size set single or more acoustic conducting pipe 5 to lift the anti-acoustic capability of this product.
The concrete structure of this product noise cancelling headphone, the auricular concha 1 is interior to be provided with sounding drive module 201 and reaction type noise reduction mould
Block 202, the reaction type noise reduction module 202 electrically connect with the sounding drive module 201, the reaction type noise reduction module 202
Including the pickup member for being used to pick up ambient sound located at the auricular concha 1, it is additionally provided with the auricular concha 1 for obstructing the sounding driving
The baffle plate 3 of sound transmission between module 201 and the pickup member.Sounding driving is obstructed by increasing the appropriate baffle plate of a block structure
Module is loudspeaker to the transfer voice between pickup member i.e. microphone, it is therefore prevented that sounding drive module, pickup member and reaction type drop
The positive feedback that is formed between module of making an uproar and uttering long and high-pitched sounds for occurring.The moment especially opened in reaction type noise reduction module, driving
Under conditions of module has enough gains, and occur without and utter long and high-pitched sounds so that noise cancelling headphone is under the conditions of with enough noise reduction capabilities
And occur without and utter long and high-pitched sounds.Lift the experience performance of this product earphone.Reaction type noise cancelling headphone is by the way that microphone is positioned over into ante-chamber
The noise signal of the inside is picked up, when baffle plate is arranged on cover, the position of its stop part is relative with sounding module, makes sounding mould
The portion of being blocked separates between block and the ante-chamber of earphone, and when in use, sounding module is directly delivered to human ear to user by sound,
Sound will not be transferred in ante-chamber, microphone is more accurately picked up noise signal, be also prevent and uttered long and high-pitched sounds.
The baffle plate 3 is included located at the substrate 301 of the side of sounding drive module 201 and middle part provided with hollow-out parts, institute
State and the stop part 302 relative with the sounding drive module 201 is additionally provided with the hollow-out parts of substrate 301.The stop part 302
One end is connected with the side madial wall of the hollow-out parts of substrate 301, and the opposite side madial wall of the hollow-out parts of substrate 301 is provided with
The raised contiguous block of relatively described substrate 301, the other end of the stop part 302, which is connected on the contiguous block, makes the stop
Portion 302 is obliquely installed with respect to hollow-out parts.Using hollow out on substrate, then stop part, reaction type noise reduction ear are set in hollow-out parts again
Machine is the noise signal by the way that microphone to be positioned over to ante-chamber pickup the inside, when baffle plate is arranged on cover, its stop part
Position is relative with sounding module, separates the portion of being blocked between sounding module and the ante-chamber of earphone, user when in use, sounding
Module is directly delivered to human ear by sound, and sound will not be transferred in ante-chamber, microphone is more accurately picked up and made an uproar
Acoustical signal, it also prevent and utter long and high-pitched sounds.
After the recess relative with sounding component, then baffle plate installation on the cover board are additionally provided with the stop part 302, the recess can
Play certain function that abates the noise.
The auricular concha 1 includes auricular concha bonnet 101, cover 102 and auricular concha protheca 103, and the auricular concha bonnet 101 is recessed to side
Fall into and form big back cavity 1011, the protheca 103 is provided with the ante-chamber relative with the back cavity 1011, and the cover 102 is located at described
Between ante-chamber and back cavity 1011, the reaction type noise reduction module 202 is connected to described with the sounding drive module 201
On the side of cover 102, the baffle plate 3 is connected on the opposite side of cover.Protecgulum 102 is ear pad, energy buffer head band pressure,
It is the direct part for attaching skin, its comfort level on wearing also has direct influence.The material of main part majority of ear pad is sponge,
Facing material can then have various differences, can there is artificial leather, corium, flannelette, screen cloth etc..Different materials have not
The same performance.Ear pad is more than a device relevant with comfort level, and it is also that important acoustic construction forms part, its energy
It is very big from influence of the suitable material to tonequality to the space between ear, formation cavity to surround driver.
The side of the relatively described sounding drive module 201 of the cover 102 is provided with raised circular mounting portion 1021, and
The middle part in the circular mounting portion 1021 is provided with installation cavity, be provided with the installation cavity it is some circumferentially and with the cover
The acoustic aperture of 102 opposite sides connection, the bonnet 1022 coordinated with the circular mounting portion 1021 is additionally provided with the cover 102.Should
Bonnet forms a small back cavity with circular mounting portion, and the side of the relatively described baffle plate 3 of the cover 102 is provided with and the substrate
The 301 raised loop connecting portions 1023 coordinated, the side inwall of the connecting portion 1023 make higher than the inwall of relative opposite side
The inclined face in surface of connecting portion 1023, and the contiguous block raised with the substrate 301 is offered on high-order madial wall and is coordinated
The neck 1024 of installation.
The sounding drive module 201 includes sounding component 2011 in the installation cavity, is connected to bonnet 1022
The drive circuit board 2012 electrically connected on lateral surface with the sounding component 2011, and the sounding component 2011 and the installation
The acoustic aperture of intracavitary is relative.The sounding component 2011 is magnet moving-coil sounding component, and drive circuit board 2012 is PCB,
Power amplifier, line traffic control control circuit etc. are integrated with thereon.Recess, the reaction type are additionally provided with the outer surface of the bonnet 1022
Noise reduction module 202 also includes the feedback circuit plate 2021 electrically connected with the drive circuit board 2012 on recess, described
Pickup is first to be connected with the feedback circuit plate 2021.The feedback circuit plate 2021 is also PCB, and reaction type noise cancelling headphone is
By the way that pickup member to be positioned over to the noise signal of ante-chamber pickup the inside, the PCB that this signal then is passed through into feedback circuit
At sounding component, by the processing of sounding drive circuit board, sounding component is set to send the signal anti-phase with noise, and then balance out
Noise inside ante-chamber reaches the effect of noise reduction.
The switch 2022 and display lamp of the work of control reaction type noise reduction module 202 are additionally provided with the feedback circuit plate 2021
2023.User can be according to use environment come the switch of free switching decrease of noise functions.The switch 2022 and display lamp 2023 with drive
Dynamic circuit board 2012 is electrically connected, and when switching 2022 closing, the decrease of noise functions of earphone is closed, and display lamp 2023 sends feux rouges, when
When switch 2022 is opened, the decrease of noise functions of earphone is opened, and display lamp 2023 sends green glow.
, should present invention also provides noise cancelling headphone, including headband 4 and left auricular concha and the auris dextra shell for being connected to the both sides of headband 4
Headband is the design of U-shaped support.Headband is the equal of a clip, and two auricular conchas are clipped on the head of user.Headband is set
Meter significantly have impact on wear comfort, thus the headband of this product be designed as it is scalable, to be adapted to different head dummys,
Headband connects the part of auricular concha, can also do the regulation of certain angle.
As shown in figure 5, being the acoustics artificial circuit diagram meaning of noise cancelling headphone, big back cavity module 6, small is from left to right followed successively by
Back cavity module 7, acoustic conductance tube module 8 and ante-chamber module 9.
The utility model by increasing acoustic conductance tubular construction inside the auricular concha of earphone, make the ante-chamber of earphone by acoustic conducting pipe with
Big back cavity connection (big back cavity leads directly to the external world and is connected), allows sound mainly by acoustic conducting pipe leakage, to weaken and even eliminate
Other leakage ways of sound, so as to play control sound leakage effect, and effectively overcome because user wearing and make
Different degrees of sound leakage problem is produced with custom.Acoustic conducting pipe can allow the ambient noise of outside directly to be entered by acoustic conducting pipe
Enter earphone ante-chamber, the effective pickup of the member of the pickup in earphone ante-chamber is arrived external environment noise, to ensure that most environment is made an uproar
Sound is picked, then coordinates reaction type noise reduction module, and noise is eliminated, effective noise reduction function leakage, improves the noise reduction of this product
Performance.Further, since the ante-chamber in auricular concha separates with big back cavity, mistake of the pickup member in ante-chamber in earphone normal work
Cheng Zhonghui is influenceed by air pressure change, and the pressure change in ante-chamber can be easily damaged pickup member, increase acoustic conducting pipe make before with
Big back cavity connection (big back cavity leads directly to the external world and is connected), equivalent to by the air pressure balance in ante-chamber, it can effectively protect pickup first,
Make pickup member can permanently effective work, increase the durable performance of this product.
It is to combine one or more embodiments that particular content provides as described above, does not assert tool of the present utility model
Body is implemented to be confined to these explanations.It is all approximate with method of the present utility model, structure etc., identical or new for this practicality
Make some technologies under type concept thereof to deduce, or replacement should all be considered as the scope of protection of the utility model.
Claims (9)
1. the reaction type noise cancelling headphone of sound leakage is effectively controlled using acoustic conductance tubular construction, including auricular concha (1), the auricular concha (1)
Inside include ante-chamber (1012) and big back cavity (1011), be provided with the auricular concha (1) by ante-chamber (1012) and big back cavity (1011)
The cover (102) separated, the side on the cover (102) with respect to ante-chamber (1012), which is provided with, to be used to pick up ambient sound and position
In pickup member, it is characterised in that be additionally provided with acoustic conducting pipe (5) on the cover (102), the acoustic conducting pipe (5) is from cover (102) phase
The side of ante-chamber (1012) is extended in big back cavity (1011) makes the big back cavity (1011) and ante-chamber (1012) UNICOM.
2. the reaction type noise cancelling headphone according to claim 1 for effectively controlling sound to leak using acoustic conductance tubular construction, it is special
Sign is that the acoustic conducting pipe (5) is located at the lower section of pickup member and close to pickup member.
3. the reaction type noise cancelling headphone according to claim 2 for effectively controlling sound to leak using acoustic conductance tubular construction, it is special
Sign is that one end in the acoustic conducting pipe (5) positioned at the ante-chamber (1012) is provided with damping layer.
4. the reaction type noise cancelling headphone according to claim 3 for effectively controlling sound to leak using acoustic conductance tubular construction, it is special
Sign is that the cover (102) is provided with the acoustic conducting pipe (5) described in two, and two acoustic conducting pipes (5) are arranged side by side.
5. the reaction type noise cancelling headphone according to claim 1 for effectively controlling sound to leak using acoustic conductance tubular construction, it is special
Sign is that the auricular concha (1) also includes the auricular concha bonnet (101) on rear side of the cover (102), the ear on front side of cover
Shell protheca (103), the auricular concha bonnet (101) are recessed to form described big back cavity (1011) to side.
6. the reaction type noise cancelling headphone according to claim 5 for effectively controlling sound to leak using acoustic conductance tubular construction, it is special
Sign is that the cover (102) is provided with sounding drive module (201), and the sounding drive module (201) includes drive circuit
Plate (2012), electrically connected with the drive circuit board (2012) and be located at the sounding component (2011) of ante-chamber (1012) side, institute
The side for stating the relatively described sounding drive module (201) of cover (102) is provided with raised circular mounting portion (1021), and described
The middle part in circular mounting portion (1021) is provided with installation cavity, be provided with the installation cavity it is some circumferentially and with the cover
(102) acoustic aperture of opposite side connection, the bonnet coordinated with the circular mounting portion (1021) is additionally provided with the cover (102)
(1022)。
7. the reaction type noise cancelling headphone according to claim 6 for effectively controlling sound to leak using acoustic conductance tubular construction, it is special
Sign is, reaction type noise reduction module (202), the reaction type noise reduction module (202) and the hair are also included in the auricular concha (1)
Sound-driving module (201) electrical connection, the sounding drive module (201) include the sounding component in the installation cavity
(2011) drive circuit board (2012) electrically connected on bonnet (1022) lateral surface with the sounding component (2011), is connected to,
And the sounding component (2011) is relative with the acoustic aperture in the installation cavity.
8. the reaction type noise cancelling headphone according to claim 7 for effectively controlling sound to leak using acoustic conductance tubular construction, it is special
Sign is, recess is additionally provided with the outer surface of the bonnet (1022), and the reaction type noise reduction module (202) is also included located at recessed
The feedback circuit plate (2021) electrically connected with the drive circuit board (2012) on position, the pickup are first with the feedback circuit
Plate (2021) connects.
9. the reaction type noise cancelling headphone according to claim 8 for effectively controlling sound to leak using acoustic conductance tubular construction, it is special
Sign is, be additionally provided with the feedback circuit plate (2021) control reaction type noise reduction module (202) work switch (2022) and
Display lamp (2023).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720560817.3U CN207117878U (en) | 2017-05-18 | 2017-05-18 | The reaction type noise cancelling headphone of sound leakage is effectively controlled using acoustic conductance tubular construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720560817.3U CN207117878U (en) | 2017-05-18 | 2017-05-18 | The reaction type noise cancelling headphone of sound leakage is effectively controlled using acoustic conductance tubular construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207117878U true CN207117878U (en) | 2018-03-16 |
Family
ID=61593846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720560817.3U Active CN207117878U (en) | 2017-05-18 | 2017-05-18 | The reaction type noise cancelling headphone of sound leakage is effectively controlled using acoustic conductance tubular construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207117878U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021056426A1 (en) * | 2019-09-27 | 2021-04-01 | 深圳市大疆创新科技有限公司 | Sound collection method, sound collection structure, and unmanned aerial vehicle |
-
2017
- 2017-05-18 CN CN201720560817.3U patent/CN207117878U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021056426A1 (en) * | 2019-09-27 | 2021-04-01 | 深圳市大疆创新科技有限公司 | Sound collection method, sound collection structure, and unmanned aerial vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9949048B2 (en) | Controlling own-voice experience of talker with occluded ear | |
| CN107426643B (en) | Uplink noise cancelling headphone | |
| CN206640738U (en) | Noise cancelling headphone and electronic equipment | |
| US20230130211A1 (en) | Open-ear hook-type wearable sound producing device | |
| JP2015023495A (en) | Earphone microphone | |
| JP2001045584A (en) | Microphone | |
| CN207968810U (en) | Novel bone conduction earphone | |
| CN206835315U (en) | Anti- structure and the noise cancelling headphone of uttering long and high-pitched sounds for reaction type noise cancelling headphone | |
| JP2014220782A (en) | Headphone with passive diaphragm | |
| JPH03214892A (en) | Noise reducing device | |
| JP2006222877A (en) | Voice transmission device and voice transmitting and receiving device | |
| CN207117878U (en) | The reaction type noise cancelling headphone of sound leakage is effectively controlled using acoustic conductance tubular construction | |
| CN105208477A (en) | Dual-noise-reduction in-ear type earphone | |
| CN204993766U (en) | Two in -ear earphone that make an uproar that fall | |
| US10321220B1 (en) | Earcushion with acoustic tube | |
| CN207304842U (en) | A kind of exhaust structure for earphone ante-chamber | |
| TW201127094A (en) | Earphone | |
| JP5080374B2 (en) | Noise-canceling headphones | |
| CN208609154U (en) | A kind of front and rear miaow noise cancelling headphone | |
| CN206932368U (en) | Put earphone outside | |
| CN213073036U (en) | TWS earphone | |
| CN205545774U (en) | Earphone earmuff and be equipped with earphone of this earmuff | |
| CN207652646U (en) | A kind of ear muff with phonocatheter | |
| CN210431783U (en) | Enhanced anti-noise earphone | |
| CN208337845U (en) | A kind of earphone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | "change of name, title or address" |
Address after: 3 / F, No.13, Maonan Road, Torch Development Zone, Zhongshan City, Guangdong Province 528400 Patentee after: Tianjian medical technology (Guangdong) Co.,Ltd. Address before: 528400 South Wing of No.6 Number Trade Building, Xiangxing Road, Zhongshan Torch Development Zone, Zhongshan City, Guangdong Province Patentee before: ZHONGSHAN TIANJIAN COMMUNICATION TECHNOLOGY Co.,Ltd. |
|
| CP03 | "change of name, title or address" |