CN107454491A - A kind of mobile terminal - Google Patents
A kind of mobile terminal Download PDFInfo
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- CN107454491A CN107454491A CN201710613767.5A CN201710613767A CN107454491A CN 107454491 A CN107454491 A CN 107454491A CN 201710613767 A CN201710613767 A CN 201710613767A CN 107454491 A CN107454491 A CN 107454491A
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- perforate
- sound wave
- receiver
- mobile terminal
- sound
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1058—Manufacture or assembly
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
- H04R2201/105—Manufacture of mono- or stereophonic headphone components
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Abstract
The embodiments of the invention provide a kind of mobile terminal, it is related to communication technical field, to solve mobile terminal in call, the problem of obvious leakage sound phenomenon occurs.Wherein, mobile terminal includes：Bonnet is provided with receiver and circuit board, the position that display module corresponds to receiver is provided with the first perforate, and the first sound wave caused by receiver propagates to the external world through the first perforate with the display module covered after installation in the receiving space formed therebetween；Circuit board is located at side of the receiver away from display module, and leak holes are provided with circuit board；After cover and be provided with the second perforate, the second sound wave caused by receiver propagates to the external world through leak holes and the second perforate successively；By to the first perforate and the setting of the location parameter of the second perforate, making the first sound wave and the second sound wave produce acoustic short circuit effect when meeting；Sound wave caused by receiver is propagated out as the first sound wave through the first perforate, is propagated out through the second perforate as the second sound wave.
Description
Technical field
The present embodiments relate to electronic technology field, more particularly to a kind of mobile terminal.
Background technology
Mobile terminal has call function, so as to which the life to user brings many convenience.
Receiver is installed, in call, the electric signal of amplification is converted into sound by receiver to be believed at the top of mobile terminal
Number, its operation principle is the audio electrical signal feed-in voice coil loudspeaker voice coil of change, and voice coil loudspeaker voice coil is placed in the magnetic gap of a magnetic circuit, voice coil loudspeaker voice coil because
The driving of the electromagnetic force (Lorentz force) of change caused by the electric current of change and up-down vibration, and before driving vibrating membrane to drive
Air afterwards, produce sound wave.Receiver can be listened close to human ear position and get sound wave caused by receiver so as to user.
Generally, when user receives calls, the human ear opening position of mobile terminal and user can leave gap, cause sound wave pass through around
Penetrate and the reflection of face, heard by the people of surrounding, occurred under leakage sound phenomenon, especially quiet environment, or In Call compared with
When high, this leakage sound phenomenon is more obvious.
The content of the invention
The embodiment of the present invention provides a kind of mobile terminal, to solve mobile terminal in call, obvious leakage sound occurs and shows
As the problem of.
The embodiments of the invention provide a kind of mobile terminal, including：Display module and bonnet, the display module are arranged on
Covered after described, receiving space is formed between the bonnet and the display module；Receiver is installed in the receiving space,
The position that the display module corresponds to the receiver is provided with the first perforate, described in the first sound wave warp caused by the receiver
First perforate propagates to the external world；Circuit board is also equipped with the receiving space, it is remote that the circuit board is located at the receiver
The side of the display module, leak holes are provided with the circuit board；Covered after described and be provided with the second perforate, it is described called
Second sound wave caused by device propagates to the external world through the leak holes and second perforate successively；By to first perforate and
The setting of the location parameter of second perforate, first sound wave is set to produce acoustic short circuit effect when being met with second sound wave
Should；Wherein, sound wave caused by the receiver is propagated out as the first sound wave through first perforate, sound caused by the receiver
Ripple is propagated out as the second sound wave through second perforate.
In the embodiment of the present invention, when user is received calls using mobile terminal, receiver produces sound wave, and the sound wave is from shifting
The first perforate before dynamic terminal propagates from, and forms the first sound wave, meanwhile, the back side of mobile terminal is provided with the second perforate,
Sound wave caused by receiver comes out from the back side radiant of mobile terminal, formed by the leak holes on circuit board and the second perforate
Second sound wave, the first sound wave is after the first perforate propagates from, and around the top for being incident upon mobile terminal, the second sound wave is from the second perforate
After propagating from, the top of mobile terminal is radiated to, is met in the certain point in space so as to two row sound waves, because of the first sound wave and the
When two sound waves meet, the scope of phase difference is 90 °~180 °, produces acoustic short circuit effect, most of sound wave cancellation, effectively reduces leakage
Interval degree, it is seen then that the mobile terminal of the embodiment of the present invention can improve the leakage sound phenomenon of mobile terminal, solve mobile terminal and exist
During call, there is the problem of obvious leakage sound phenomenon.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the schematic cross-section of the mobile terminal of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Referring to Fig. 1, the embodiments of the invention provide a kind of mobile terminal, including：Display module 10 and bonnet 20, show mould
Group 10 is arranged on bonnet 20, and receiving space is formed between bonnet 20 and display module 10；Receiver is installed in receiving space
30, the position of the corresponding receiver 30 of display module 10 is provided with the first perforate 11, and first sound wave is through first caused by receiver 30
Perforate 11 propagates to the external world；Circuit board 40 is also equipped with receiving space, circuit board 40 is located at receiver 30 away from display module
10 side, leak holes 41 are provided with circuit board 40；The second perforate 21 is provided with bonnet 20, second caused by receiver 30
Sound wave propagates to the external world through the perforate 21 of leak holes 41 and second successively；By to the location parameter of the first perforate and the second perforate
Set, the first sound wave and the second sound wave is produced acoustic short circuit effect when meeting；Wherein, sound wave is opened through first caused by receiver 30
Hole 11 is propagated out as the first sound wave, and sound wave caused by receiver 30 is propagated out as the second sound wave through the second perforate 21.
In the present embodiment, the first sound wave is produced by receiver 30, and from the front of receiver 30, through mobile terminal front
The first perforate 11 propagate to the external world air in, the first Acoustic Wave Propagation come out after, listened by the human ear near the first perforate 11
Arrive, while diffraction occurs, diffraction process is as shown in the thicker arrow in figure, so as to around the top being incident upon such as mobile terminal
Locus such as (right side are top in figure).
Second sound wave produces from receiver 30, and from the back side of receiver 30, leak holes 41 and movement through circuit board 40
Second perforate 21 at the terminal back side is radiated in the air in the external world, the communication process such as the thinner arrow institute in figure of the second sound wave
Show, so as to propagate to the top locus of such as mobile terminal.
When the first sound wave and the second sound wave meet in the certain point in space, such as met at the top of mobile terminal, because of
One sound wave propagates from from the front and back of receiver 30 respectively with rising tone ripple, and the top that the two meets at mobile terminal is first
Secondary the scope of phase difference can meet in 90 °~180 ° when meeting, so as to which two row sound waves can produce acoustic short circuit effect, from called
The sound wave that device 30 is spread out of largely is cancelled, and then greatly reduces the degree of Lou sound, it is seen then that is effectively improved in the prior art
The leakage sound phenomenon that mobile terminal occurs in call.
Wherein, acoustic short circuit refers to that sound wave is anti-phase when the vibrating diaphragm of receiver moves forwards or backwards, and it is mutual to be directed at sound wave
Offset, so sound is also very light, so as to utilize this principle, effectively mitigate the sound of leakage, improve mobile terminal leakage to reach
The problem of sound.
When being met for the first sound wave and the second sound wave, the scope of phase difference is 90 °~180 °, can be further defined to the
When one sound wave and the second sound wave meet first, the scope of phase difference is 90 °~180 °.
Because leaking the phenomenon of sound for call, typically occur from two people in the case of relatively near, such as two people at a distance of 40cm,
And in the quiet environment, and do not have serious sound leakage substantially when two people are apart from each other and occur, such as it is most of it is mobile eventually
The leakage sound at end is not just heard substantially more than dialog context after 30cm, and management and control gets up not making much sense.And frequency of sound wave is lower,
Can produces acoustic short circuit effect in farther distance range, such as the wavelength of sound wave that frequency is 2000Hz is 17cm, can
All to produce acoustic short circuit effect within 1 meter of distance, but this distance does not make much sense, therefore we only consider two people's phases
Away from it is nearer when how could as far as possible not allow the people of surrounding to hear the content of speech.Generation is met first mobile whole in two row sound waves
Near end, that is, two people are in nearer scope, are the scope that the embodiment of the present invention is mainly studied, and two row sound waves are more
When remote place is met, the embodiment of the present invention can not considered.
When preferably, in order to meet that the first sound wave and the second sound wave meet, the scope of phase difference is 90 °~180 °, can be led to
The relative distance of adjustment the first perforate 11 and the second perforate 21 on the direction that the top of mobile terminal and afterbody are extended is crossed to come
Realize.
Such as：At present, distance of the first perforate 11 of the positive receiver 30 of mobile terminal at the top of mobile terminal exists
5mm~10mm, by taking 3440Hz sound wave as an example, its wavelength is 10cm or so, and adjustable first perforate 11 and the second perforate 21 exist
The relative distance on direction that the top of mobile terminal and afterbody are extended, with ensure to move the first sound wave of whole terminal front side around
(path difference is the distance that two row sound waves are passed by communication process to the path difference of the second sound wave directly radiated with the back side when penetrating
Difference) within 1.5cm, at this moment, distance of second perforate 21 at the top of mobile terminal can be in 8mm~15mm.
In the example above, if the path difference of two row sound waves is 1.5cm, when sound wave is passed by the distance of 4 wavelength, that is,
The path difference for saying the first sound wave and the second sound wave is 6cm or so, has just reached the distance of half-wavelength, that is to say, that from phase difference
Say, in larger band limits, two row acoustic phases difference is 90-180 °, therefore still falls within the category of sound wave cancellation, and being can be real
Existing acoustic short circuit effect.
In actual design, the particular location of the first perforate 11 and the second perforate 21 will be adjusted according to actual conditions.
Preferably, when the first sound wave and the second sound wave meet, phase difference is 180 °, and two row acoustic phases are on the contrary, and width
Value size is also more or less the same, i.e., when the path difference of the first sound wave and the second sound wave is 0cm, acoustic short circuit effect is the most obvious, now
Neutralization effect is optimal.
Preferably, left and right directions of the position of the second perforate 21 at the back side of mobile terminal is placed in the middle, i.e. the second perforate 21
In on the center line on the first direction of bonnet 20；Here first direction is is extended along the top and afterbody of mobile terminal
Direction.
Here design placed in the middle, with reference to the first perforate 11 and the second perforate 21 relative distance in a first direction, to try one's best
The path difference for meeting two row sound waves is 0cm.
It should be noted that call frequency band is generally whole compared to mobile in below 4000Hz, the wavelength of its corresponding sound wave
The top dimension at end is much larger, and leaks mail topic and also betide two people under the conditions of relatively closely, therefore basic without considering phase
The problem of position.
, can be overleaf to realize the effect of complete acoustic short circuit cancellation in order to further improve the effect of acoustic short circuit cancellation
Increase back cavity is damped to regulate and control the energy of the second sound wave, and setting up for back cavity damping does not interfere with phase, simply change the width of sound wave
Value, so as to make acoustic short circuit reach optimum efficiency as far as possible.
The size of second perforate 21 and position can carry out management and control according to practical application, reach improvement leakage sound and do not influence subjectivity
The poised state of sense of hearing, it is preferred that the cross-sectional area of the second perforate 21 is smaller than the cross-sectional area of the first perforate 11
50%, so, the acoustic wave energy of back side radiant is less than normal compared to the acoustic wave energy of positive diffraction, and sound wave is smaller, surrounding
People can not perceive the sound wave of back side radiant, and the sound wave for being not in the back side produces acoustic short circuit effect around the front for being mapped to mobile terminal
Should, the situation of people's subjectivity sense of hearing is reduced, while and can makes the sound wave at the back side as far as possible with front around incoming sound wave generation sound
Short-circuiting effect.
Wherein, it the 30%~50% of the cross-sectional area of the first perforate 11 is optimal that the cross-sectional area of the second perforate 21, which is,
First scheme.
, can also be in the close circuit of the second perforate 21 except the method for the energy of the above-mentioned sound wave of adjustment second with continued reference to Fig. 1
Breathing waterproof film 50 is covered in one end of plate 40.
Breathing waterproof film 50 can both play a part of waterproof, while the second sound wave can be ensured from breathing waterproof film 50, warp
Second perforate 21 is radiated to the external world.Breathing waterproof film 50 has certain acoustic resistance, and acoustic resistance is larger, to realize the regulation and control back side
The energy of radiative acoustic wave, as far as possible enter the sound wave of back side radiant and obvious acoustic short circuit phenomenon is produced in human ear, to consumption
Person brings bad experience, it is preferred that the acoustic resistance of breathing waterproof film 50 is recommended in 100Rayls~200Rayls or so.
In addition, sound-absorbing material, pair of the sound-absorbing material from receiver 30 can be also provided between bonnet 20 and circuit board 40
Position is answered to extend the correspondence position of the second perforate 21.
In this scheme, sound-absorbing material is pasted in the passage that the back side of receiver 30 is in communication with the outside to adjust the second sound wave
Energy, with reference to above-mentioned breathing waterproof film 50, total acoustic resistance should be in 300Rayls~500Rayls or so.
So, other factors are not being considered, in the case of only considering acoustic resistance, the low 3dB of back side acoustic ratio front sound wave~
5dB, consider further that acoustic energy when front sound wave diffraction and reflection loses and second perforate at the back side will not be very big, back side sound wave
It is smaller than the volume of front sound wave, the size of the sound of the perceived back side sound wave of people around is reduced as far as possible, from
And the people of surrounding can not perceive the sound wave of mobile terminal back side radiant, at the same and can make back side sound wave as far as possible with positive diffraction
The sound wave to come over produces acoustic short circuit effect, and now cancellation effect is preferable, will not aggravate Lou mail topic again.
Refer to, the Air Filter of higher acoustic resistance can be also pasted with side of the receiver 30 away from display module 10,
To increase back cavity damping, the energy of the second sound wave is adjusted.
Wherein, sound-absorbing material can be acoustical cotton, for example, it is small that plug one is put in the passage that the back side of receiver 30 is in communication with the outside
Block acoustical cotton (such as one piece wide 2mm acoustical cotton), to adjust the energy size of back side sound wave, adjust final cancellation effect.
Most preferably, breathing waterproof film 50 can be covered in one end of the close circuit board 40 of the second perforate 21, meanwhile,
Sound-absorbing material is provided between bonnet 20 and circuit board 40, sound-absorbing material extends the second perforate 21 from the correspondence position of receiver 30
Correspondence position, the Air Filter of higher acoustic resistance, and second are also pasted with side of the receiver 30 away from display module 10
The cross-sectional area of perforate 21 is designed as the 30%~50% of the cross-sectional area of the first perforate 11, so as to short to reach optimum sound
Road effect, to improve the leakage mail of the mobile terminal made in the present embodiment topic to greatest extent.
As shown in the above, the acoustic wave energy of back side radiant should not be too big, otherwise also occurs back side sound wave around being mapped to
The front of mobile terminal produces acoustic short circuit effect, reduces the situation of people's subjectivity sense of hearing.Therefore the sound pressure level of back side acoustic irradiation needs
To be debugged according to actual conditions, find equalization point.
In the present embodiment, using the vibrating diaphragm position in receiver 30 as initial position, i.e. vibrating diaphragm position, x=
0, then the radiation formula of the first sound wave be：
pf=Aej(ωt-kx)；
Wherein, pfThe first sound wave is represented, A represents amplitude, and k=w/c represents wave number, and c represents the velocity of sound, and t represents time, x tables
Show distance；
The radiation formula of second sound wave is：
pb=Aej(ωt+kx)；
pbRepresent the second sound wave, A represents amplitude, and k=w/c represents wave number, and c represents the velocity of sound, and t represents the time, x represent away from
From.
It can be seen that the initial magnitude A of two row sound waves is equal, and in initial position, the phase difference of two row sound waves is 180 °
(two row sound wave a positive and a negative are propagated, and phase difference is 180 °), so after two row one segment distances of Acoustic Wave Propagation, in space position
When meeting, the path difference passed by due to two row sound waves will not be very big, compared to wavelength in itself for be a small amount of, a therefore path difference
Corresponding phase difference still can produce the effect cancelled out each other in the range of 90~180 °, and a part of acoustic wave energy will
It can be lost due to cancelling out each other, so as to reduce the size for the leakage sound that surrounding people perceive.
In embodiments of the present invention, the quantity of the leak holes 41 on circuit board 40 is alternatively two, and on circuit board 40
The position of leak holes 41 is corresponding with the leakage hole site of receiver 30, to ensure that the circulation of the backside gas of receiver 30 is smooth, so that by
Sound wave caused by words device 30 can be radiated the external world from the second perforate 21.
Circuit board 40 can be printed circuit (Printed Circuit Board, abbreviation PCB) plate, and on circuit board 40
Leak holes 41 are set, broken plate technique can be used.
Preferably, can be reachable covered with steel net structure, steel net structure in one end of the remote circuit board 40 of the second perforate 21
To the effect of water proof and dust proof, large particulate matter entrance can be kept off, the passage of the second perforate 21 is blocked, to ensure that rising tone wave energy enough passes
Broadcast is gone.
Refer to, steel net structure can be also provided with the first perforate 11, to reach the effect of water proof and dust proof, bulky grain can be kept off
Material enters, and blocks the passage of the first perforate 11, ensures receiver, that is, the normal use of receiver 30, so as to reach call
Smoothly effect.
Because sound wave caused by receiver 30 comes out from back side radiant so that the back cavity of receiver 30 opens, so that
Obtain the vibrating diaphragm in receiver 30 to be easier to vibrate, and then the power consumption needed for receiver 30 also has certain reduction, accordingly, makes
The advantage that mobile terminal is also provided with power saving is obtained, further optimizes the mobile terminal in the present embodiment.
It should be noted that in the present embodiment, " front " of appearance refers to that mobile terminal under talking state, presses close to people
The one side of ear, " back side " of appearance refer to the one side opposite with front, corresponding, front sound wave namely the first sound wave, the back side
Sound wave namely the second sound wave.
Although having been described for the preferred embodiment of the embodiment of the present invention, those skilled in the art once know base
This creative concept, then other change and modification can be made to these embodiments.So appended claims are intended to be construed to
Including preferred embodiment and fall into having altered and changing for range of embodiment of the invention.
Finally, it is to be noted that, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or terminal device including a series of elements are not only wrapped
Those key elements, but also the other element including being not expressly set out are included, or is also included for this process, method, article
Or the key element that terminal device is intrinsic.In the absence of more restrictions, wanted by what sentence "including a ..." limited
Element, it is not excluded that other identical element in the process including the key element, method, article or terminal device also be present.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (10)
- A kind of 1. mobile terminal, it is characterised in that including：Display module and bonnet, the bonnet is installed in the display module On, form receiving space between the bonnet and the display module；Receiver is installed, the position that the display module corresponds to the receiver is opened provided with first in the receiving space Hole, the first sound wave propagates to the external world through first perforate caused by the receiver；Circuit board is also equipped with the receiving space, the circuit board is located at one of the receiver away from the display module Side, leak holes are provided with the circuit board；Covered after described and be provided with the second perforate, the second sound wave caused by the receiver is successively through the leak holes and described Two perforates propagate to the external world；By to first perforate and the setting of the location parameter of second perforate, making first sound wave and described second Acoustic short circuit effect is produced when sound wave meets；Wherein, sound wave caused by the receiver is propagated out as the first sound wave through first perforate, caused by the receiver Sound wave is propagated out as the second sound wave through second perforate.
- 2. mobile terminal according to claim 1, it is characterised in that first sound wave meets with second sound wave When, phase difference is 180 °.
- 3. mobile terminal according to claim 1, it is characterised in that second perforate is located at the first party of the bonnet On upward center line；Wherein, the first direction is the direction that is extended along the top and afterbody of the mobile terminal.
- 4. mobile terminal according to claim 1, it is characterised in that the cross-sectional area of second perforate is less than described The 50% of the cross-sectional area of first perforate.
- 5. mobile terminal according to claim 4, it is characterised in that the cross-sectional area of second perforate is described the The 30%~50% of the cross-sectional area of one perforate.
- 6. mobile terminal according to claim 1, it is characterised in that the one of the close circuit board of second perforate Covered with breathing waterproof film in end.
- 7. mobile terminal according to claim 1, it is characterised in that the one of the remote circuit board of second perforate Covered with steel net structure in end.
- 8. according to the mobile terminal described in any one of claim 1~7, it is characterised in that the bonnet and the circuit board it Between be provided with sound-absorbing material, the sound-absorbing material extends the corresponding position of second perforate from the correspondence position of the receiver Put.
- 9. mobile terminal according to claim 8, it is characterised in that the sound-absorbing material is acoustical cotton.
- 10. according to the mobile terminal described in any one of claim 1~7, it is characterised in that the receiver is away from the display Air Filter is pasted with the side of module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710613767.5A CN107454491B (en) | 2017-07-25 | 2017-07-25 | A kind of mobile terminal |
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| CN201710613767.5A CN107454491B (en) | 2017-07-25 | 2017-07-25 | A kind of mobile terminal |
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| CN107454491A true CN107454491A (en) | 2017-12-08 |
| CN107454491B CN107454491B (en) | 2019-08-16 |
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| WO2019179352A1 (en) * | 2018-03-19 | 2019-09-26 | 维沃移动通信有限公司 | Mobile terminal |
| WO2019228180A1 (en) * | 2018-05-28 | 2019-12-05 | 维沃移动通信有限公司 | Mobile terminal |
| CN110913048A (en) * | 2019-11-29 | 2020-03-24 | 维沃移动通信有限公司 | Electronic device |
| CN110933211A (en) * | 2019-11-29 | 2020-03-27 | 维沃移动通信有限公司 | Electronic device |
| CN110944079A (en) * | 2019-11-29 | 2020-03-31 | 维沃移动通信有限公司 | Electronic device |
| CN110944078A (en) * | 2019-11-29 | 2020-03-31 | 维沃移动通信有限公司 | Electronic device |
| CN111031163A (en) * | 2019-11-29 | 2020-04-17 | 维沃移动通信有限公司 | Electronic device |
| CN111225305A (en) * | 2020-01-15 | 2020-06-02 | Oppo广东移动通信有限公司 | Electronic device |
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| CN111818419A (en) * | 2020-07-24 | 2020-10-23 | 青岛海信移动通信技术股份有限公司 | Sound leakage prevention electronic equipment |
| CN111835898A (en) * | 2020-07-07 | 2020-10-27 | Oppo广东移动通信有限公司 | Electronic device |
| CN112351372A (en) * | 2019-08-06 | 2021-02-09 | 悠声股份有限公司 | Mobile phone including audio system with back side sub-opening |
| CN112653780A (en) * | 2019-09-26 | 2021-04-13 | 北京小米移动软件有限公司 | Mobile terminal and method of controlling audio signal of mobile terminal |
| CN114125115A (en) * | 2021-11-16 | 2022-03-01 | 维沃移动通信有限公司 | Electroacoustic module and electronic equipment |
| WO2022088267A1 (en) * | 2020-11-02 | 2022-05-05 | 瑞声声学科技(深圳)有限公司 | Loudspeaker box |
| WO2024050949A1 (en) * | 2022-09-09 | 2024-03-14 | 瑞声声学科技(深圳)有限公司 | Sound leakage elimination method and apparatus |
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| CN112653780A (en) * | 2019-09-26 | 2021-04-13 | 北京小米移动软件有限公司 | Mobile terminal and method of controlling audio signal of mobile terminal |
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| CN114125115A (en) * | 2021-11-16 | 2022-03-01 | 维沃移动通信有限公司 | Electroacoustic module and electronic equipment |
| CN114125115B (en) * | 2021-11-16 | 2023-09-15 | 维沃移动通信有限公司 | Electroacoustic module and electronic equipment |
| WO2024050949A1 (en) * | 2022-09-09 | 2024-03-14 | 瑞声声学科技(深圳)有限公司 | Sound leakage elimination method and apparatus |
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