CN107799111A - One kind protection shell component harmony ripple removing method - Google Patents
One kind protection shell component harmony ripple removing method Download PDFInfo
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- CN107799111A CN107799111A CN201710982831.7A CN201710982831A CN107799111A CN 107799111 A CN107799111 A CN 107799111A CN 201710982831 A CN201710982831 A CN 201710982831A CN 107799111 A CN107799111 A CN 107799111A
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- sound wave
- sound
- processor
- collecting device
- output device
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The present invention provides a kind of protection shell component harmony ripple removing method, wherein protection shell component includes：Shell body, battery, electric energy output interface, sound collecting device, processor and sound wave output device, the sound collecting device and the sound wave output device be may be contained within the shell body, and the sound collecting device and the sound wave output device are electrically connected with the processor；Battery is arranged in shell body, is electronic equipment, processor, the sound collecting device and sound wave output device power supply.So, processor control sound wave output device output and the second sound wave of the opposite in phase of the first sound wave, to eliminate the first sound wave of the electronic equipment local environment, the phonetic function for effectively solving electronic equipment is easily caused the relatively low technical problem of the definition of receiving and transmitting voice by Environmental Noise Influence, and the mobile charging problem of electronic equipment, the definition of the convenient degree and receiving and transmitting voice of raising electronic equipment mobile charging.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of protection shell component harmony ripple removing method.
Background technology
With the development of the communication technology, the function of electronic equipment is stronger and stronger, voice transmitting-receiving of the user to electronic equipment
The requirement of function also more and more higher.When user uses the phonetic function of electronic equipment in public, the language of electronic apparatus receiving and transmitting
Likeness of the deceased easily by influence of noise present in environment, cause the definition of the voice that user listens to and sent by electronic equipment compared with
It is low.In use, electric quantity consumption is larger for electronic equipment, is electronics more by fixed charging device or mobile charging device
Equipment is powered.Fixed charging device limitation user can only charge in fixed location for electronic equipment, and mobile charging device is inconvenient
User carries with.It can be seen that existing electronic equipment has phonetic function is easily caused receiving and transmitting voice by Environmental Noise Influence
Definition is relatively low, and the relatively complicated technical problem of charging operations of electronic equipment.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of protection shell component harmony ripple removing method, to solve existing electronics
Equipment has phonetic function is easily caused the definition of receiving and transmitting voice relatively low by Environmental Noise Influence, and the charging behaviour of electronic equipment
Make relatively complicated technical problem.
In order to achieve the above object, concrete scheme provided in an embodiment of the present invention is as follows：
In a first aspect, the embodiments of the invention provide one kind to protect shell component, including：Shell body, battery, electric energy output
Interface, sound collecting device, processor and sound wave output device, the sound collecting device and the sound wave output device are all provided with
It is placed on the shell body, the sound collecting device and the sound wave output device are electrically connected with the processor；
The battery is arranged in the shell body, the battery and the electric energy output interface, the processor,
The sound collecting device and the sound wave output device are electrically connected with；
The battery is used for for the electronic equipment, processor, the sound collecting device and sound wave output dress
Put power supply；
The sound collecting device is used for the first sound wave for gathering the electronic equipment local environment；
The processor is used to control the sound wave output device to export the second sound wave, wherein, the phase of second sound wave
Position and the opposite in phase of first sound wave.
Second aspect, the embodiments of the invention provide a kind of sound wave removing method, applied to the protection described in first aspect
Shell component, method include：
The processor of the protection shell component obtains the first sound wave of the sound collecting device collection of the protection shell component；
The sound wave output device of the processor control protection shell component exports the second sound wave, wherein, described second
The phase of sound wave and the opposite in phase of first sound wave.
In the embodiment of the present invention, protection shell component is applied to electronic equipment, and protection shell component includes shell body, is arranged at institute
The intrinsic battery of shell and electric energy output interface are stated, and sound collecting device, the processor being arranged on the shell body
With sound wave output device, the electronic equipment applied is arranged in the inner chamber of shell body, is exported by the battery by electric energy
Interface is powered.Sound collecting device gathers the first sound wave of electronic equipment local environment, and processor control sound wave output device is defeated
Go out the second sound wave with the opposite in phase of the first sound wave, be electronics to eliminate the first sound wave of the electronic equipment local environment
Equipment provides mobile charging function, and the phonetic function for effectively solving electronic equipment is easily caused to receive and dispatch language by Environmental Noise Influence
The relatively low technical problem of the definition of sound, improve the convenient degree of charging of electronic equipment and the definition of receiving and transmitting voice.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, needed for being described below to the embodiment of the present invention
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention,
For those of ordinary skill in the art, without having to pay creative labor, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of structural representation for protecting shell component provided in an embodiment of the present invention；
Fig. 2 is the principle schematic that the sound wave involved by protection shell component provided in an embodiment of the present invention eliminates；
Fig. 3 is one of structural representation of protection shell component provided in an embodiment of the present invention；
Fig. 4 is the two of the structural representation of protection shell component provided in an embodiment of the present invention；
Fig. 5 is a kind of schematic flow sheet of sound wave removing method provided in an 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.
Fig. 1 is referred to, Fig. 1 is the structural representation of protection shell component provided in an embodiment of the present invention.As shown in figure 1, one
Kind protection shell component 100, is sheathed on electronic equipment, provides mobile charging function for electronic equipment, and protect electronic equipment to eliminate
The interference of ambient noise.The protection shell component 100 includes shell body 101, sound collecting device 102, processor and (not shown in figure
Go out), sound wave output device 103, battery 104 and electric energy output interface (not shown).
The sound collecting device 102, the processor and the sound wave output device 103 may be contained within the shell body
On 101.The sound collecting device 102 and the sound wave output device 103 are electrically connected with the processor.
The shell body 101 is the cavity body structure of a side opening, and the inner chamber of the shell body 101, which can be used for accommodating, wants
The electronic equipment of protection.The shell body 101 can be the shell body 101 of square structure, the shell body 101 of the square structure
Shell end face and four sides of the four edges for enclosing the shell end face can be included, four sides enclose the shell end face and set
Put, form the shell body 101 of a side opening, the shell end face is set towards the opening of the shell body 101.Need to use described
When protecting the protection electronic equipment of shell component 100, electronic equipment can be placed into the shell body 101 by the opening
In chamber, the end face and side of the electronic equipment, it is bonded respectively with the end face of the shell body 101 and side.
The sound collecting device 102 is arranged on the shell body 101, for gathering the electronic equipment local environment
The first sound wave, mainly collect and the noise of the shell body 101 be transferred in environment.In one embodiment, the sound
Ripple harvester 102 can be piezoelectric film sensor, and the piezoelectric film sensor is electrically connected with the processor.Piezoelectricity
Thin film sensor gathers the first sound wave of environment, and the first sound wave gathered is converted into electric signal.
The process that the piezoelectric film sensor gathers first sound wave can be：When first sound wave reaches described
Piezoelectric film sensor, the piezoelectric membrane of piezoelectric film sensor are experienced the first sound wave and vibrated, and pressure are produced, by caused by
Pressure is changed into corresponding electric signal, and caused electric signal transmission to the processor is as realized in collection environment
The purpose of first sound wave.Preferably, the piezoelectric film sensor can also be Kynoar (Polyvinylidene
Fluoride, abbreviation PVDF) piezoelectric film sensor, with allow piezoelectric membrane in very wide sound wave frequency range all have compared with
Good linear response characteristic, the acoustic signals of more wide-band can be gathered, to match identification frequency range of the mankind to sound wave, i.e., 20 hertz
Hereby to 20000 hertz.Sound collecting device 102 for gathering the first sound wave in environment can also be piezoceramic transducer,
Multiple piezoceramic transducers can be connected, amplify gathered acoustic signals step by step, to improve the sensitivity for gathering sound wave.
Other can realize that the scheme of the Acoustic Signal Acquisition of the first sound wave in environment may be applicable to the present embodiment, be not limited thereto.
Main control part of the processor as protection shell component 100, active drop is carried out according to sound wave cancellation principle
Make an uproar.Sound wave is generally compressional wave, during Acoustic Wave Propagation, drives medium to be vibrated along Acoustic Wave Propagation direction.Sound wave is in transmitting procedure, if meeting
To the sound wave of another opposite in phase therewith, you can eliminate a part of acoustic wave energy.If the frequency and amplitude of another sound wave are with working as
Preceding sound wave all same, and opposite in phase, then two sound waves superposition completely current sound wave of can.As shown in Figure 2, if it is desired to eliminate
First sound wave (as shown in S1 in figure), then the second sound wave that can be superimposed one and the opposite in phase of the first sound wave (are such as schemed
Shown in middle S2), the amplitude and frequency all same of second sound wave and first sound wave, and opposite in phase can also be controlled,
To reach preferable sound wave eradicating efficacy.
The processor receives the first electric signal corresponding to first sound wave that the sound collecting device 102 gathers,
First electric signal is decomposed, draws the first parameter of the first sound wave.Processor calculates according to first parameter
Go out to eliminate the second parameter of the second sound wave required for first sound wave, and second according to corresponding to second parameter generation
Electric signal is to sound wave output device 103, to control the sound wave output device 103 according to second electric signal output
Two sound waves so that second sound wave offsets with first sound wave, to realize that the sound wave of the containment vessel body 101 eliminates
Function.
The sound wave output device 103 is used for the second electric signal exported according to the processor, output corresponding described the
Second sound wave of two electric signals, purpose is eliminated to reach sound wave.The sound wave output device 103 can include at least one Mike
Wind, at least one microphone are electrically connected with the processor, the second sound wave of processor controlled output.
In one embodiment, the sound wave output device 103 can be four microphones, and four microphones divide
Four corner locations of the shell body 101 are not arranged at.Four microphones may be respectively used for offsetting the shell body 101
The noise of four direction, more preferable sound wave eradicating efficacy is reached.
On the basis of above-described embodiment, the sound collecting device 102 can be covered in the shell end of the shell body 101
The outer surface in face, for gathering the first sound wave of the whole outer surface for reaching the shell body 101, now first sound wave can
To include multiple noises.The piezoelectricity that the sound collecting device 102 is converted to the multiple noises sensed correspondence position is thin
Pressure caused by vibration of membrane, be converted to the first electric signal.The processor is according to first electric signal, directly described in control
Four microphones of sound wave output device 103 export identical secondary signal, to offset making an uproar for direction residing for each microphone
Sound.
On the basis of above-described embodiment, the processor can also establish the frame of reference, including horizontally and vertically, can
To set in sound wave output device 103, the first microphone and second microphone export sound wave along transverse axis, the 3rd microphone and the
Four microphones export sound wave along the longitudinal axis.The first sound wave gathered can be decomposed into the first sub- sound of corresponding transverse axis by processor
Second sub- sound wave of ripple and the corresponding longitudinal axis, correspondingly, second sound wave can be divided into the 3rd sub- sound wave of corresponding transverse axis and right
Answer the 4th sub- sound wave of the longitudinal axis.The processor can control first microphone and the second microphone to export the 3rd son
Sound wave, to offset the first of X direction the sub- sound wave.The 3rd microphone and the 4th microphone is controlled to export described the
Four sub- sound waves, to offset the second of y direction the sub- sound wave.Other can realize that the multiple microphones of control export sound wave to eliminate
The scheme of the multiple noises received may be applicable to the present embodiment, not limit herein.Noise is carried out by multiple microphones simultaneously
Eliminate, the sound wave eradicating efficacy of more preferable solid space can be reached, further improve the definition of electronic apparatus receiving and transmitting voice.
Shown as shown in Figure 1, Figure 3 and Figure 4 on the basis of above-described embodiment, the protection shell component 100 also includes battery
104 and electric energy output interface, provide mobile charging function for electronic equipment.The battery 104 is arranged at the shell body 101
It is interior, being bonded for the shell body 101 and the electronic equipment is neither influenceed, allows the shell body 101 again to battery
104 play certain protective effect.Size and thickness in view of battery 104 is larger, is preferably disposed on the shell body
101 intermediate region, so that the size and distribution of weight of the shell body 101 are more uniformly distributed.
The battery 104 is connected with the electric energy output interface, and the free end of the electric energy output interface can be set
Inner surface or outer surface in the shell end face of the shell body 101.It can be realized by the electric energy output interface to described
The discharge and recharge of battery 104.Battery 104 can be connected to the feeder ear of electronic equipment by electric energy output interface, be electronics
Equipment charge.Shell component 100 is protected while electronic equipment is protected, can also be that electronic equipment charges, add user's body
Test.
On the basis of above-described embodiment, sound collecting device 102, the sound wave output device of the protection shell component 100
103 and processor can also be connected with the battery 104 so that the battery 104 be the sound collecting device 102,
The sound wave output device 103 and the processor provide electric energy, to support the sound wave of the protection shell component 100 to eliminate work(
Energy., can also be by the sound collecting device 102, the sound wave output device 103 and the processor in other embodiment
The electronic equipment is connected to, is powered for it by the electronic equipment.Other can be embodied as the sound collecting for protecting shell component 100
The scheme of device 102, sound wave output device 103 and processor power supply may be applicable to the present embodiment, not limit herein.
On the basis of above-described embodiment, the sound wave output device 103 can be four microphones, to reach more preferable
The sound wave eradicating efficacy of solid space.The centre position of the shell body 101 is arranged in view of the battery 104, is surround
The corner location of the battery 104 is not provided with miscellaneous part, causes the space availability ratio of shell body 101 relatively low.Therefore can be with
Four microphones are respectively arranged in the shell body 101 around four corner locations of the battery 104.Utilize shell sheet
The clear position of body 101 sets four microphones, on the premise of realizing that solid space sound wave eliminates, does not increase shell body 101
Size, improve the space availability ratio of shell body 101.
The protection shell component that the embodiments of the present invention provide, the sound collecting device set on shell body are collected up to institute
State the first sound wave of shell body, processor control sound wave output device exports the second sound wave so that second sound wave with it is described
First sound wave is eliminated after the superposition of first sound wave, reaches the purpose for eliminating the first sound wave.The protection shell component sets up electric power storage
Pond, mobile charging function, the purposes of increase protection shell component are provided for electronic equipment.Sound collecting device is covered in shell body
Outer surface gathers the first sound wave, and acquisition range is wider.Battery is arranged to the centre position of the shell body, for realizing sound
The sound wave output device that ripple eliminates is arranged at the ambient idle position of battery, improves space availability ratio, optimizes solid space
Noise cancellation effect.The material source that the protection shell component is applied is wide and cost is low, convenient use and popularization.
Fig. 5 is referred to, Fig. 5 is a kind of schematic flow sheet of sound wave removing method provided in an embodiment of the present invention, is applied to
Protect shell component.Shown as shown in Figure 1, Figure 3 and Figure 4, the protection shell component 100 includes：Shell body 101, sound collecting device
102nd, processor, sound wave output device 103, battery 104 and electric energy output interface, the battery 104 are arranged at the shell
In body 101, the battery 104 is the power electronic equipment by electric energy output interface.The sound collecting device
102nd, the processor and the sound wave output device 103 may be contained within the shell body 101.A kind of as shown in figure 5, sound wave
Removing method, including：
Step 501, the processor of the protection shell component obtain the sound collecting device collection of the protection shell component
First sound wave.
The sound collecting device 102 is arranged on the shell body 101, for gathering the electronic equipment local environment
The first sound wave, mainly collect and the noise of the shell body 101 be transferred in environment.In one embodiment, the sound
Ripple harvester 102 can be piezoelectric film sensor, and the piezoelectric film sensor is electrically connected with the processor.Piezoelectricity
Thin film sensor gathers the first sound wave of environment, and the first sound wave gathered is converted into electric signal.
Main control part of the processor as protection shell component 100, active drop is carried out according to sound wave cancellation principle
Make an uproar.Sound wave is generally compressional wave, during Acoustic Wave Propagation, drives medium to be vibrated along Acoustic Wave Propagation direction.Sound wave is in transmitting procedure, if meeting
To the sound wave of another opposite in phase therewith, you can eliminate a part of acoustic wave energy.If the frequency and amplitude of another sound wave are with working as
Preceding sound wave all same, and opposite in phase, then two sound waves superposition completely current sound wave of can.If want to eliminate first sound
Ripple, then can be superimposed second sound wave with the opposite in phase of the first sound wave, can also control second sound wave with it is described
The amplitude and frequency all same of first sound wave, and opposite in phase, to reach preferable sound wave eradicating efficacy.
The processor receives the first electric signal corresponding to first sound wave that the sound collecting device 102 gathers,
First electric signal is decomposed, draws the first parameter of the first sound wave.
Step 502, the sound wave output device of the processor control protection shell component export the second sound wave.
Processor is calculated and eliminates second of the second sound wave required for first sound wave according to first parameter
Parameter, and the second electric signal is to sound wave output device 103 according to corresponding to second parameter generation, to control the sound wave defeated
Go out second sound wave according to second electric signal output of device 103 so that second sound wave and the first sound wave phase
Offset, to realize that the sound wave of the containment vessel body 101 eliminates function.
The sound wave output device 103 is used for the second electric signal exported according to the processor, output corresponding described the
Second sound wave of two electric signals, purpose is eliminated to reach sound wave.The sound wave output device 103 can include at least one Mike
Wind, at least one microphone are electrically connected with the processor, the second sound wave of processor controlled output.
The sound wave removing method that the embodiments of the present invention provide, sound collecting device collection electronic equipment local environment
First sound wave, processor control sound wave output device output and the second sound wave of the opposite in phase of the first sound wave, with described in elimination
First sound wave of electronic equipment local environment, the phonetic function for effectively solving electronic equipment easily are caused to receive by Environmental Noise Influence
The relatively low technical problem of the definition of voice is sent out, improves the definition of electronic apparatus receiving and transmitting voice.It is provided in an embodiment of the present invention
The specific implementation process of sound wave removing method may refer to the specific implementation process of the protection shell component of above-described embodiment offer,
This is no longer repeated one by one.
In embodiment provided herein, it should be understood that disclosed electronic equipment and method, it can be passed through
Its mode is realized.For example, electronic equipment embodiment described above is only schematical, for example, the unit is drawn
Point, only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can
To combine or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, it is shown or beg for
The mutual coupling of opinion or direct-coupling or apart from detection can be by some interfaces, electronic equipment or unit it is indirect
Couple or apart from detection, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize scheme of the embodiment of the present invention according to the actual needs
Purpose.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.
If the function is realized in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part to be contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are causing a computer equipment (can be
People's computer, server, or network equipment etc.) perform all or part of step of each embodiment methods described of the present invention.
And foregoing storage medium includes：USB flash disk, mobile hard disk, ROM, RAM, magnetic disc or CD etc. are various can be with store program codes
Medium.
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 (8)
1. one kind protection shell component, is sheathed on electronic equipment, it is characterised in that is connect including shell body, battery, electric energy output
Mouth, sound collecting device, processor and sound wave output device, the sound collecting device and the sound wave output device are respectively provided with
In on the shell body, the sound collecting device and the sound wave output device are electrically connected with the processor；
The battery is arranged in the shell body, the battery and the electric energy output interface, the processor, described
Sound collecting device and the sound wave output device are electrically connected with；
The battery is used for for the electronic equipment, the processor, the sound collecting device and sound wave output dress
Put power supply；
The sound collecting device is used for the first sound wave for gathering the electronic equipment local environment；
The processor is used to control the sound wave output device to export the second sound wave, wherein, the phase of second sound wave with
The opposite in phase of first sound wave.
2. protection shell component according to claim 1, it is characterised in that the sound collecting device passes including piezoelectric membrane
Sensor, the piezoelectric film sensor are electrically connected with the processor.
3. protection shell component according to claim 2, it is characterised in that the piezoelectric film sensor is Kynoar
Piezoelectric film sensor.
4. protection shell component according to claim 3, it is characterised in that the sound collecting device is covered in the shell sheet
On the outer surface of body.
5. protection shell component according to any one of claim 1 to 4, it is characterised in that the sound wave output device bag
Include at least one microphone.
6. protection shell component according to claim 5, it is characterised in that the sound wave output device includes four Mikes
Wind, four microphones are respectively arranged at four corner locations of the shell body.
7. protection shell component according to claim 6, it is characterised in that it is intrinsic that the battery is arranged at the shell
Centre position, four microphones are respectively arranged in the shell body around four corner locations of the battery.
8. a kind of sound wave removing method, it is characterised in that applied to the containment vessel group as any one of claim 1 to 7
Part, the sound wave removing method include：
The processor of the protection shell component obtains the first sound wave of the sound collecting device collection of the protection shell component；
The sound wave output device of the processor control protection shell component exports the second sound wave, wherein, second sound wave
Phase and first sound wave opposite in phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710982831.7A CN107799111A (en) | 2017-10-20 | 2017-10-20 | One kind protection shell component harmony ripple removing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710982831.7A CN107799111A (en) | 2017-10-20 | 2017-10-20 | One kind protection shell component harmony ripple removing method |
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| CN201710982831.7A Pending CN107799111A (en) | 2017-10-20 | 2017-10-20 | One kind protection shell component harmony ripple removing method |
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| US10895602B2 (en) * | 2018-01-30 | 2021-01-19 | Primearth Ev Energy Co., Ltd. | Battery assembly state estimation device and battery assembly state estimation method |
| CN112447164A (en) * | 2019-09-02 | 2021-03-05 | 欧菲光集团股份有限公司 | Noise reduction device and vehicle |
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| CN105515443A (en) * | 2015-12-03 | 2016-04-20 | 北京北纬通信科技股份有限公司 | Energy conversion system and method for environmental acoustic energy |
| CN106231040A (en) * | 2016-07-22 | 2016-12-14 | 柳州正高科技有限公司 | A kind of GSM mobile handset shell of monitoring of environmental noise intensity |
| CN106231039A (en) * | 2016-07-22 | 2016-12-14 | 柳州正高科技有限公司 | A kind of bluetooth cellular phone shell of monitoring of environmental noise intensity |
| CN106251856A (en) * | 2016-07-26 | 2016-12-21 | 惠州Tcl移动通信有限公司 | A kind of environment noise based on mobile terminal eliminates system and method |
| CN106303783A (en) * | 2016-08-12 | 2017-01-04 | 北京金锐德路科技有限公司 | Noise-reduction method and device |
| CN206212090U (en) * | 2016-10-20 | 2017-05-31 | 北京声智科技有限公司 | A kind of portable voice harvester and mobile terminal containment vessel |
| CN206461680U (en) * | 2017-01-22 | 2017-09-01 | 姚坚洲 | Back splint cell mobile phone containment vessel |
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| CN108989514A (en) * | 2018-07-26 | 2018-12-11 | 维沃移动通信有限公司 | A kind of mobile terminal |
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