CN106454582A - In-ear type earphone - Google Patents

In-ear type earphone Download PDF

Info

Publication number
CN106454582A
CN106454582A CN201610805045.5A CN201610805045A CN106454582A CN 106454582 A CN106454582 A CN 106454582A CN 201610805045 A CN201610805045 A CN 201610805045A CN 106454582 A CN106454582 A CN 106454582A
Authority
CN
China
Prior art keywords
conducting pipe
acoustic conducting
noise elimination
ear headphones
acoustic
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.)
Pending
Application number
CN201610805045.5A
Other languages
Chinese (zh)
Inventor
张晓红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goertek Techology Co Ltd
Original Assignee
Goertek Techology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Goertek Techology Co Ltd filed Critical Goertek Techology Co Ltd
Priority to CN201610805045.5A priority Critical patent/CN106454582A/en
Publication of CN106454582A publication Critical patent/CN106454582A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1016Earpieces of the intra-aural type
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 

Abstract

The invention discloses an in-ear type earphone. The in-ear type earphone comprises an earphone body, a silencing structure and a loudspeaker monomer, wherein the earphone body comprises a shell and a first acoustic conduction tube; the shell surrounds to form a cavity; one end of the first sound acoustic conduction tube communicates with the cavity and the other end of the first sound acoustic conduction tube communicates with the outside; the silencing structure comprises a resonant cavity and a second sound acoustic conduction tube; the resonant cavity communicates with the first sound acoustic conduction tube through the second sound acoustic conduction tube; and the loudspeaker monomer is arranged in the cavity. Through setting the silencing structure, the in-ear type earphone disclosed by the invention can adjust the frequency response in a certain specific frequency band.

Description

A kind of In-Ear Headphones
Technical field
The present invention relates to a kind of In-Ear Headphones, more particularly, to the In-Ear of certain band frequency response can be adjusted Earphone.
Background technology
The loudspeaker monomer of In-Ear Headphones, is had in the auditory meatus of sound conduction to user by the front operatic tunes and sound tube There is good sealing, increased the audio visual effect of earphone.Because its outstanding Portability, high-quality sound show and outstanding Soundproof effect and very popular.
But, existing In-Ear Headphones, due to being directly conducted to sound in the auditory meatus of user, need high frequency is carried out Adjust to obtain closer to the sound requiring and frequency response curve.And existing product carries out entirety often through paster or sponge Regulation, rather than be adjusted just for certain special frequency channel.For example, the frequency response only to a certain special frequency channel of high frequency It is adjusted.Existing In-Ear Headphones can not meet user's higher and higher requirement to In-Ear Headphones.Accordingly, it would be desirable to existing In-Ear Headphones further improve.
Content of the invention
It is an object of the present invention to provide a kind of In-Ear Headphones that can adjust the response of certain band frequency.
According to the first aspect of the invention, there is provided a kind of In-Ear Headphones.This In-Ear Headphones includes:Headset body, Described headset body includes shell and the first acoustic conducting pipe, and described shell surrounds and forms a chamber, one end of described first acoustic conducting pipe With described chamber, the other end of described first acoustic conducting pipe is communicated to the external world;Noise elimination structure, described noise elimination structure includes resonating Chamber and the second acoustic conducting pipe, described resonant cavity is connected with described first acoustic conducting pipe by described second acoustic conducting pipe;And speaker list Body, described loudspeaker monomer is arranged at described within the chamber.
Optionally, described second acoustic conducting pipe is the through hole on the tube wall be arranged on described first acoustic conducting pipe.
Optionally, described noise elimination structure has fixing resonant frequency, and the resonant frequency of described noise elimination structure exceedes 3000Hz.
Optionally, described second acoustic conducting pipe is located at the middle part of described noise elimination structure.
Optionally, the cross-sectional area of described rising tone catheter channel is less than or equal to the transversal of described first acoustic conductance tube passage / 10th of area.
Optionally, described In-Ear Headphones include ear muff, and described ear muff fits in the auditory meatus of user, described ear muff setting Described first acoustic conducting pipe away from described loudspeaker monomer one end.
Optionally, described In-Ear Headphones are provided with multiple described noise elimination structures.
Optionally, described resonant cavity is around the outer surface of described first acoustic conducting pipe.
Optionally, multiple described noise elimination structures have different resonant frequencies.
Optionally, multiple described noise elimination structures have identical resonant frequency.
It was found by the inventors of the present invention that in prior art, existing In-Ear Headphones are carried out often through paster or sponge Overall regulation, can not be adjusted just for certain special frequency channel.
Therefore, present invention technical assignment to be realized or technical problem to be solved be those skilled in the art from Not expecting or it is not expected that, therefore the present invention is a kind of new technical scheme.
The In-Ear Headphones of the present invention, can force down the earphone response of certain frequency range by arranging noise elimination structure, from And special frequency channel is adjusted, to obtain closer to the sound requiring.
By the detailed description to the exemplary embodiment of the present invention referring to the drawings, the further feature of the present invention and its Advantage will be made apparent from.
Brief description
Combined in the description and the accompanying drawing of the part that constitutes description shows embodiments of the invention, and even It is used for together explaining the principle of the present invention with its explanation.
Fig. 1 is the structural representation of In-Ear Headphones in the embodiment of the present invention.
Fig. 2 is the profile of the line A-A along along Fig. 1.
The frequency response chart of In-Ear Headphones in Fig. 3 embodiment of the present invention.
Wherein, 1:Shell;2:Loudspeaker monomer;3:The front operatic tunes;4:The operatic tunes afterwards;5:First acoustic conducting pipe;6:Resonant cavity;7:The Two acoustic conducting pipes;8:Ear muff.
Specific embodiment
To describe the various exemplary embodiments of the present invention now with reference to accompanying drawing in detail.It should be noted that:Unless other have Body illustrates, the positioned opposite, numerical expression of the part otherwise illustrating in these embodiments and step and numerical value do not limit this The scope of invention.
Description only actually at least one exemplary embodiment is illustrative below, never as to the present invention And its application or any restriction using.
May be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable When in the case of, described technology, method and apparatus should be considered a part for description.
In all examples with discussion shown here, any occurrence should be construed as merely exemplary, and not It is as restriction.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that:Similar label and letter represent similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined in individual accompanying drawing, then do not need it is further discussed in subsequent accompanying drawing.
The invention provides a kind of In-Ear Headphones, including headset body, noise elimination structure and loudspeaker monomer 2.This The bright structure to In-Ear Headphones is improved, and is additionally arranged noise elimination structure, is capable of the frequency of a certain special frequency channel of flexible Response, to obtain closer to the sound requiring.Specifically, as shown in Fig. 2 described headset body includes shell 1 and the first acoustic conductance Pipe 5.Described first acoustic conducting pipe 5 includes the passage that tube wall and described tube wall surround, and sound passes through described channel conductance.Described shell 1 surrounds formation one chamber, and described loudspeaker monomer 2 is arranged at described within the chamber, and described chamber is divided into by described loudspeaker monomer 2 The front operatic tunes 3 and the rear operatic tunes 4.One end of described first acoustic conducting pipe 5 is connected with the described front operatic tunes 3, described first acoustic conducting pipe 5 another End is communicated to the external world, and sound passes through the described front operatic tunes 3 and the channel conductance of described first acoustic conducting pipe 5 is extremely extraneous.Described knot of eliminating the noise Structure includes resonant cavity 6 and the second acoustic conducting pipe, and described second acoustic conducting pipe includes the passage that tube wall and described tube wall surround, described resonance Chamber 6 is connected with the through hole of described first acoustic conducting pipe 5 by described second acoustic conducting pipe, and sound passes through the passage of described second acoustic conducting pipe Conduct to resonant cavity 6.
When the frequency of external sound wave is identical with the resonant frequency of described noise elimination structure, covibration, amplitude will be produced Reach maximum, the gas in described noise elimination structure moves reciprocatingly under acoustic wave action, by friction and damping action, make one Acoustic energy is divided to be converted to thermal energy consumption.When the frequency of external sound wave leave described resonance frequency value farther out when, sound deadening capacity drastically declines. For example shown in Fig. 3, dotted line (curve l) is the frequency response chart being not provided with described noise elimination structure, and solid line (curve 2) is setting The frequency response chart of described noise elimination structure.Described In-Ear Headphones pass through the described noise elimination structure of setting and can force down a certain frequency range Frequency response, obtain closer to the sound requiring.It should be appreciated by those skilled in the art, in order to obtain close to requirement Sound, described noise elimination structure is readily adaptable for use in other kinds of earphone to reduce the frequency response of certain frequency range.
Preferably, as described in Figure 2, make described noise elimination structure for convenience, described second acoustic conducting pipe is to be arranged on described the Through hole 7 on the tube wall of one acoustic conducting pipe 5.Described through hole 7 connects described resonant cavity 6 and described first acoustic conducting pipe 5.Described through hole 7 Collectively form described noise elimination structure with described resonant cavity 6.When the frequency of external sound wave reaches or close to described noise elimination structure During resonant frequency, the gas in described through hole 7, under acoustic pressure effect, moves back and forth, by described through hole 7 as piston The friction of inner surface and damping action, make a part of acoustic energy be converted into thermal energy consumption.
It is further preferred that as depicted in figs. 1 and 2 it is contemplated that the outward appearance of described In-Ear Headphones, described resonant cavity 6 ring Outer surface around described first acoustic conducting pipe 5.One end of described resonant cavity 6 is connected with described shell 1, and described resonant cavity 6 is in addition One end can extend to the marginal position of described first acoustic conducting pipe 5.It is so designed that, described 6 encirclements of resonant cavity can be avoided described The local outer surface of the first acoustic conducting pipe 5 so that the outer surface out-of-flatness of described In-Ear Headphones, thus affecting the product body of user Test.
Preferably, described noise elimination structure has fixing resonant frequency fb, the resonant frequency f of described noise elimination structurebIt is set to High frequency more than 3000Hz.In general, when sound is more than 3000Hz, user's auditory meatus will produce discomfort.Described noise elimination structure Described fixed frequency range f can be adjustedbThe frequency response of neighbouring special frequency channel.Described fixed frequency range fbValue is more than 3000Hz's High frequency, so that described In-Ear Headphones only adjust the frequency response of certain frequency range making user auditory meatus uncomfortable, to obtain more adjunction The nearly sound requiring.For example shown in Fig. 3, solid line (curve 2) is the frequency being provided with the noise elimination structure that fixed frequency is 6000Hz Rate response diagram.The fixed frequency of described noise elimination structureAcoustic capacitanceAcoustic massSound Anti-Wherein, SbFor the cross-sectional area of described second acoustic conducting pipe 7 passage, lbFor described second acoustic conducting pipe 7 Length, VbVolume for described resonant cavity 6.Determine natural frequency f of described noise elimination structurebAfterwards, then calculate and meet natural frequency fb The cross-sectional area S of required the second acoustic conducting pipe 7 passageb, length lbVolume V with described resonant cavity 6b, according to the chi calculating Very little making described noise elimination structure.
Optionally, the sound deadening capacity of described noise elimination structureWhereinF is the frequency of external sound wave, and S is the cross-sectional area of described first acoustic conducting pipe 5 passage.When external sound When the frequency of ripple is f, the sound deadening capacity T of described noise elimination structureLIncrease with frequency ratio z and reduce rapidly, described sound deadening capacity TLWith β value For direct ratio.Therefore, the frequency range that can eliminate the noise for noise elimination structure described in broadening, to be arranged larger of β value.If described first The cross-sectional area S of acoustic conducting pipe 5 fixes, then volume V of described resonant cavity 6bTo be arranged larger with noise elimination structure described in broadening The frequency range that can eliminate the noise.
Preferably, as shown in Fig. 2 theoretical noise elimination value and actual noise elimination result for ensureing described noise elimination structure keep one Cause, described second acoustic conducting pipe 7 is arranged on the middle part of described noise elimination structure.Because the gas in described second acoustic conducting pipe 7 is in sound wave Under pressure effect, move back and forth as piston.It is so designed that avoiding described second acoustic conducting pipe 7 is arranged on described noise elimination structure Marginal position, gas pass through described second acoustic conducting pipe 7 after irregularly flow in described resonant cavity 6.
Preferably, as shown in Fig. 2 the cross-sectional area of described second acoustic conducting pipe 7 passage is less than or equal to described first sound / 10th of the cross-sectional area of conduit 5 passage.For example, the cross-sectional area of the first acoustic conducting pipe 5 passage of existing earphone generally sets Put between 10-50 square millimeter, accordingly, the cross-sectional area of described second acoustic conducting pipe 7 passage is less than 1-5 square millimeter. This kind of structure design, it can be avoided that the cross-sectional area of described second acoustic conducting pipe 7 passage is excessive, leads to sound wave just can lead to easily Cross described second acoustic conducting pipe 7 and enter described resonant cavity 6, and then affect the sound performance of described In-Ear Headphones.And described disappear Acoustic form is relatively small to the friction of gas and damping action, does not also reach the soundproof effect of anticipation.
Preferably, as shown in Fig. 2 described In-Ear Headphones also include ear muff 8, described ear muff 8 fits in user Auditory meatus.Described ear muff 8 is in hollow structure, and described hollow structure runs through described ear muff 8.Described ear muff 8 is located at described first acoustic conductance , away from one end of described loudspeaker monomer 2, one end of for example described ear muff 8 can be with described first acoustic conducting pipe 5 away from described for pipe 5 The end surface of loudspeaker monomer 2 connects, and the other end of described ear muff 8 can be set in the surface of described first acoustic conducting pipe 5. Described In-Ear Headphones are fitted with the auditory meatus of user by described ear muff 8, can more efficiently intercept external noise.
Preferably, for enabling described In-Ear Headphones to adjust the frequency response of multiple frequency ranges, described In-Ear Headphones set There are multiple described noise elimination structures.It is further preferred that multiple described noise elimination structures have different resonant frequencies.When external sound wave Frequency close to wherein any one fixed frequency when, described In-Ear Headphones all can adjust its frequency response, to obtain more Close to the sound requiring.So, multiple described noise elimination structures can adjust the frequency response of multiple different frequency ranges, it is to avoid only arranges The frequency range that can adjust during one noise elimination structure is excessively narrow.
Alternatively, when the flow in described the one the second acoustic conducting pipes 7 is larger, multiple described noise elimination structures may be configured as phase Same resonant frequency.For example, the body of the cross-sectional area, length and multiple described resonant cavity 6 of multiple described second acoustic conducting pipe 7 passages Amass and can be of the same size, so that multiple described noise elimination structure has identical resonant frequency.Due to the described rising tone The cross-sectional area of conduit 7 passage is less than 1/10th of the cross-sectional area of described first acoustic conducting pipe 5 passage, if described first sound The cross-sectional area of conduit 5 passage is fixed, then the cross-sectional area of described second acoustic conducting pipe 7 passage has maximum.When described first sound When in the passage of conduit 5, flow is larger, only less second acoustic conducting pipe 7 of one channel cross-sectional area of setting can not reach requirement Soundproof effect.Therefore, it can arrange multiple noise elimination structures with same resonance frequency to obtain preferable soundproof effect.
Although being described in detail to some specific embodiments of the present invention by example, the skill of this area Art personnel it should be understood that example above is merely to illustrate, rather than in order to limit the scope of the present invention.The skill of this area Art personnel are it should be understood that can modify to above example without departing from the scope and spirit of the present invention.This Bright scope is defined by the following claims.

Claims (10)

1. a kind of In-Ear Headphones are it is characterised in that include:
Headset body, described headset body includes shell (1) and the first acoustic conducting pipe (5), and described shell (1) is surrounded and formed a chamber Room, one end of described first acoustic conducting pipe (5) and described chamber, the other end of described first acoustic conducting pipe (5) is communicated to the external world;
Noise elimination structure, described noise elimination structure includes resonant cavity (6) and the second acoustic conducting pipe (7), and described resonant cavity (6) passes through described the Two acoustic conducting pipes (7) are connected with described first acoustic conducting pipe (5);And
Loudspeaker monomer (2), described loudspeaker monomer (2) is arranged at described within the chamber.
2. In-Ear Headphones according to claim 1 it is characterised in that:Described second acoustic conducting pipe (7) is described for being arranged on Through hole on the tube wall of the first acoustic conducting pipe (5).
3. In-Ear Headphones according to claim 1 it is characterised in that:Described noise elimination structure has fixing resonance frequency Rate, the resonant frequency of described noise elimination structure is more than 3000Hz.
4. In-Ear Headphones according to claim 1 it is characterised in that:Described second acoustic conducting pipe (7) is located at described noise elimination The middle part of structure.
5. In-Ear Headphones according to claim 1 it is characterised in that:The cross section of described second acoustic conducting pipe (7) passage / 10th of the long-pending cross-sectional area less than or equal to described first acoustic conducting pipe (5) passage.
6. In-Ear Headphones according to claim 1 it is characterised in that:Including ear muff (8), described ear muff (8) fits in The auditory meatus of user, described ear muff (8) is arranged on described first acoustic conducting pipe (5) one end away from described loudspeaker monomer (2).
7. In-Ear Headphones according to claim 1 it is characterised in that:Described In-Ear Headphones are provided with multiple described noise eliminations Structure.
8. In-Ear Headphones according to claim 2 it is characterised in that:Described resonant cavity (6) is around described first acoustic conductance The outer surface of pipe (5).
9. In-Ear Headphones according to claim 7 it is characterised in that:Multiple described noise elimination structures have different resonance Frequency.
10. In-Ear Headphones according to claim 7 it is characterised in that:Multiple described noise elimination structures have identical altogether Vibration frequency.
CN201610805045.5A 2016-09-06 2016-09-06 In-ear type earphone Pending CN106454582A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610805045.5A CN106454582A (en) 2016-09-06 2016-09-06 In-ear type earphone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610805045.5A CN106454582A (en) 2016-09-06 2016-09-06 In-ear type earphone

Publications (1)

Publication Number Publication Date
CN106454582A true CN106454582A (en) 2017-02-22

Family

ID=58165354

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610805045.5A Pending CN106454582A (en) 2016-09-06 2016-09-06 In-ear type earphone

Country Status (1)

Country Link
CN (1) CN106454582A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107318073A (en) * 2017-07-28 2017-11-03 歌尔股份有限公司 Loudspeaker module and electronic equipment
CN107371107A (en) * 2017-07-28 2017-11-21 歌尔股份有限公司 Loudspeaker module and electronic equipment
CN110191386A (en) * 2019-05-31 2019-08-30 歌尔科技有限公司 A kind of external earphone
CN111447526A (en) * 2020-03-09 2020-07-24 成都水月雨科技有限公司 Acoustic coupling structure of in-ear earphone cavity
CN113709612A (en) * 2021-08-03 2021-11-26 江西联创宏声电子股份有限公司 In-ear earplug and earphone
CN113938788A (en) * 2021-10-14 2022-01-14 维沃移动通信有限公司 Audio output device and electronic equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103347228A (en) * 2013-07-25 2013-10-09 中山市天键电声有限公司 Acoustic structure for improving high-frequency resolution of in-ear headphone
CN103533472A (en) * 2013-10-12 2014-01-22 中山市天键电声有限公司 Front cavity structure of micro-receiver with acoustic filter
JP2015033110A (en) * 2013-08-07 2015-02-16 アシダ音響株式会社 Earphone
CN204291298U (en) * 2014-07-29 2015-04-22 中山市天键电声有限公司 A kind of In-Ear Headphones
CN206100383U (en) * 2016-09-06 2017-04-12 歌尔科技有限公司 An ear -worn earphone

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103347228A (en) * 2013-07-25 2013-10-09 中山市天键电声有限公司 Acoustic structure for improving high-frequency resolution of in-ear headphone
JP2015033110A (en) * 2013-08-07 2015-02-16 アシダ音響株式会社 Earphone
CN103533472A (en) * 2013-10-12 2014-01-22 中山市天键电声有限公司 Front cavity structure of micro-receiver with acoustic filter
CN204291298U (en) * 2014-07-29 2015-04-22 中山市天键电声有限公司 A kind of In-Ear Headphones
CN206100383U (en) * 2016-09-06 2017-04-12 歌尔科技有限公司 An ear -worn earphone

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107318073A (en) * 2017-07-28 2017-11-03 歌尔股份有限公司 Loudspeaker module and electronic equipment
CN107371107A (en) * 2017-07-28 2017-11-21 歌尔股份有限公司 Loudspeaker module and electronic equipment
CN113630700A (en) * 2017-07-28 2021-11-09 苹果公司 Speaker module and electronic equipment
CN110191386A (en) * 2019-05-31 2019-08-30 歌尔科技有限公司 A kind of external earphone
CN110191386B (en) * 2019-05-31 2021-03-19 歌尔科技有限公司 External earphone
CN111447526A (en) * 2020-03-09 2020-07-24 成都水月雨科技有限公司 Acoustic coupling structure of in-ear earphone cavity
CN113709612A (en) * 2021-08-03 2021-11-26 江西联创宏声电子股份有限公司 In-ear earplug and earphone
CN113709612B (en) * 2021-08-03 2024-03-26 江西联创宏声电子股份有限公司 In-ear earplug and earphone
CN113938788A (en) * 2021-10-14 2022-01-14 维沃移动通信有限公司 Audio output device and electronic equipment

Similar Documents

Publication Publication Date Title
CN106454582A (en) In-ear type earphone
CN206100383U (en) An ear -worn earphone
CN108605178B (en) Pressure in earphone is balanced
CN109937579B (en) In-ear active noise reduction earphone
JP5002787B2 (en) Speaker device, sound source simulation system, and echo cancellation system
JP4422137B2 (en) In-ear and ear-plug earphones with adjustable rear volume between speaker and housing
WO2021083326A1 (en) Intelligent head-mounted device
US20180146279A1 (en) Earphone capable of reducing pressure in ear canal and providing enhanced sound quality and method for making the same
CN104581483A (en) Open type earphone
CN204377095U (en) The anti-type earphone of dipole height radiation
CN103503474A (en) Twin-driver earphone
JP2004531986A (en) Speaker port system to reduce boundary layer separation
WO2016073391A1 (en) Sound transmission systems and devices having earpieces
CN202004931U (en) Sound pressure balanced system of in-ear headphone
CN106535015A (en) Microphone channel structure
CN103313162B (en) A kind of Dual-speaker headphone
CN113163297B (en) Audio device and intelligent head-mounted equipment
WO2021057891A1 (en) Headset
CN210536918U (en) In-ear earphone
CN204518013U (en) The anti-type earphone of high radiation
CN206272797U (en) A kind of microphone channel structure
US11589171B2 (en) Systems and methods for suppressing sound leakage
CN204291318U (en) A kind of open earpiece
CN209859607U (en) Tunable acoustic damping
CN111970596A (en) Earphone set

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20170222