CN106534422B - A kind of loudspeaker assembly, speaker and mobile terminal - Google Patents
A kind of loudspeaker assembly, speaker and mobile terminal Download PDFInfo
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- CN106534422B CN106534422B CN201611068978.7A CN201611068978A CN106534422B CN 106534422 B CN106534422 B CN 106534422B CN 201611068978 A CN201611068978 A CN 201611068978A CN 106534422 B CN106534422 B CN 106534422B
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- 230000006870 function Effects 0.000 description 9
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- 238000007789 sealing Methods 0.000 description 5
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- 230000005236 sound signal Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
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- 238000010276 construction Methods 0.000 description 2
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
- H04M1/035—Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
-
- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
- H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm for loudspeaker transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Telephone Function (AREA)
Abstract
The invention discloses a kind of loudspeaker assembly, speaker and mobile terminals, the loudspeaker assembly includes: sounding speaker unit, power-assisted speaker unit and sound chamber Cavity unit, wherein, sound chamber after sounding speaker unit and power-assisted speaker unit share provided by sound chamber Cavity unit；It is vibrated by the vibrating diaphragm of sounding speaker unit and the vibrating diaphragm synchronous backward of power-assisted speaker unit, the low frequency loudness of playback frequency outside sounding speaker unit is enhanced；By the vibration in the same direction synchronous with the vibrating diaphragm of power-assisted speaker unit of the vibrating diaphragm of sounding speaker unit, the low frequency loudness of playback frequency outside sounding speaker unit is weakened.The present invention is compared to the prior art, increase the low frequency loudness for the audio that loudspeaker is exported, low frequency loudness can also significantly be weakened under specific application scene simultaneously and be suitable for high frequency output, the loudspeaker assembly of the present invention mobile terminal smaller and smaller particularly suitable for Highgrade integration or figure facilitates the volume for reducing mobile terminal while promoting audio quality.
Description
Technical field
The present invention relates to mobile terminal control field more particularly to a kind of loudspeaker assemblies, speaker and mobile terminal.
Background technique
As people are higher and higher to the portability of mobile terminal, the requirement of ultra-thin and ultra-light, the thickness of mobile terminal is more next
Thinner but function is more and more, has virtually squeezed the audio space of mobile terminal, leads to the loudspeaker sound of mobile terminal
It is small, poor to the reduction effect of low-frequency sound, so bad one as in use of the outer playback frequency result of broadcast of mobile terminal
Pain spot.
Existing mobile terminal loudspeaker assembly as shown in figs. 34, including loudspeaker unit, sound chamber Cavity unit,
In, loudspeaker unit includes vibrating diaphragm 1, coil 2, magnet steel 3 and magnet frame 4, and the vibrating diaphragm 1 of sound chamber Cavity unit and loudspeaker unit is common
The rear sound chamber 5 for constituting sealing promotes the outer result of broadcast for putting high-frequency sound of mobile terminal based on existing loudspeaker assembly
Method, usually by promoting the function on loudspeaker, the bigger loudspeaker of replacement volume；It promotes the outer of mobile terminal and lowers frequency
The method of the result of broadcast of sound usually increases the cavity volume of sound chamber Cavity unit or fills out acoustical cotton, and above-mentioned way
It is runed counter to again with the ultra-thin light and handy trend of mobile terminal.
Summary of the invention
It is a primary object of the present invention to propose a kind of loudspeaker assembly, speaker and mobile terminal, it is intended to which solution is taking into account
While the figure of mobile terminal where loudspeaker assembly is ultra-thin light and handy, the broadcasting effect of the outer playback frequency of mobile terminal is promoted
Fruit.
To achieve the above object, a kind of loudspeaker assembly provided by the invention, comprising: sounding speaker unit, power-assisted loudspeaking
Unit and sound chamber Cavity unit, wherein after provided by sounding speaker unit and the shared sound chamber Cavity unit of power-assisted speaker unit
Sound chamber；
It is vibrated by the vibrating diaphragm of sounding speaker unit and the vibrating diaphragm synchronous backward of power-assisted speaker unit, enhances sounding loudspeaking list
The low frequency loudness of the outer playback frequency of member；
By the vibration in the same direction synchronous with the vibrating diaphragm of power-assisted speaker unit of the vibrating diaphragm of sounding speaker unit, weaken sounding loudspeaking list
The low frequency loudness of the outer playback frequency of member.
Optionally, the vibrating diaphragm of sounding speaker unit and the vibrating diaphragm synchronous backward of power-assisted speaker unit vibrate, comprising: same
At the moment, the vibrating diaphragm of sounding speaker unit is relative to the concave-convex state of the rear sound chamber and the vibrating diaphragm of power-assisted speaker unit relative to institute
The concave-convex state for stating rear sound chamber is opposite；
The vibrating diaphragm of sounding speaker unit vibration in the same direction synchronous with the vibrating diaphragm of power-assisted speaker unit, comprising: in synchronization, hair
The vibrating diaphragm of sound speaker unit and the vibrating diaphragm of power-assisted speaker unit relative to the equal convex of the sound chamber afterwards or concave.
Optionally, the situation identical as the size of the vibrating diaphragm of power-assisted speaker unit in the vibrating diaphragm of sounding speaker unit
Under, the quantity of sounding speaker unit and power-assisted speaker unit is equal；
In the different situation of size of the vibrating diaphragm of the vibrating diaphragm and power-assisted speaker unit of sounding speaker unit, sounding
The vibrating diaphragm deformation gross space of speaker unit and the vibrating diaphragm deformation gross space of power-assisted speaker unit are equal.
Optionally, the vibrating diaphragm of sounding speaker unit is towards after described on the outside of sound chamber；
In the case where the vibrating diaphragm of power-assisted speaker unit side intracavitary towards the sound afterwards:
The vibrating diaphragm of the sounding speaker unit and the producing method of the vibrating diaphragm synchronous backward of power-assisted speaker unit vibration include:
The positive and negative anodes of sounding speaker unit and the positive and negative anodes of power-assisted speaker unit load in the same direction outer of amplitude respectively and put audio electrical signal；
The vibrating diaphragm of the sounding speaker unit producing method vibrated in the same direction synchronous with the vibrating diaphragm of power-assisted speaker unit includes:
The positive and negative anodes of sounding speaker unit and the positive and negative anodes of power-assisted speaker unit load opposite outer of amplitude respectively and put audio electrical signal.
Optionally, the vibrating diaphragm of sounding speaker unit is towards after described on the outside of sound chamber；
In the case where the vibrating diaphragm of power-assisted speaker unit is towards after described on the outside of sound chamber:
The vibrating diaphragm of the sounding speaker unit and the producing method of the vibrating diaphragm synchronous backward of power-assisted speaker unit vibration include:
The electricity of the positive and negative anodes of sounding speaker unit and the positive and negative anodes of power-assisted the speaker unit outer playback frequency that load amplitude respectively opposite
Signal；
The vibrating diaphragm of the sounding speaker unit producing method vibrated in the same direction synchronous with the vibrating diaphragm of power-assisted speaker unit includes:
The positive and negative anodes of sounding speaker unit and the positive and negative anodes of power-assisted speaker unit load the electricity of the amplitude outer playback frequency in the same direction respectively
Signal.
Optionally, the low frequency is the sound that frequency is less than or equal to 1KHz, and the high frequency is frequency more than or equal to 4KHz's
Sound.
In addition, to achieve the above object, the present invention also proposes a kind of speaker, comprising: the power amplifier that is sequentially connected electrically and
Above-mentioned loudspeaker assembly, wherein
Power amplifier, the electric signal for the audio to input amplify；
The loudspeaker assembly, for carrying out sound also to the electric signal through the amplified audio of the power amplifier
Original output.
Optionally, the speaker further include: control circuit；
The power amplifier amplifies the electric signal of the audio of input under the control of the control circuit.
In addition, to achieve the above object, the present invention also proposes a kind of mobile terminal, comprising: audio playing apparatus and above-mentioned
Loudspeaker assembly, wherein
The audio playing apparatus obtains the electric signal of audio for being decoded to audio file；
The loudspeaker assembly, the electric signal for the audio carry out sound-reducing output.
Optionally, the audio playing apparatus, for being decoded to audio file and power amplification obtains the electricity of audio
Signal.
It is defeated to increase loudspeaker institute compared to the prior art for loudspeaker assembly, speaker and mobile terminal proposed by the present invention
The low frequency loudness of audio out, larger to the effect promoting of low frequency, music is more interesting to listen to, melodious, while can also be in specific application
Significantly weaken low frequency loudness under scene and be suitable for high frequency output, such as alarm song class special screne, therefore can increase to each
The ability to express of class audio frequency.The loudspeaker assembly of the present invention mobile end smaller and smaller particularly suitable for Highgrade integration or figure
End facilitates the volume for reducing mobile terminal while promoting audio quality.
Detailed description of the invention
The hardware structural diagram of Fig. 1 optional mobile terminal of each embodiment to realize the present invention；
Fig. 2 is the case where mobile terminal of various embodiments of the present invention is held by a user schematic diagram；
Fig. 3 is the composed structure schematic diagram of the loudspeaker assembly of the prior art；
Fig. 4 is the top view of the loudspeaker assembly in Fig. 3；
Fig. 5 is the composed structure schematic diagram of the loudspeaker assembly of first embodiment of the invention；
Fig. 6 is the composed structure schematic diagram of the loudspeaker assembly of second embodiment of the invention；
Fig. 7 is the composed structure schematic diagram of the loudspeaker assembly of third embodiment of the invention；
Fig. 8 is the composed structure schematic diagram of the speaker of fourth embodiment of the invention；
Fig. 9 is the composed structure schematic diagram of the mobile terminal of fifth embodiment of the invention；
Figure 10 is the composed structure schematic diagram of the loudspeaker assembly of sixth embodiment of the invention；
Figure 11 is that the outer of sixth embodiment of the invention puts the schematic diagram that audio electrical signal is sine wave signal；
Figure 12 is the reinforcing effect schematic diagram of the superposition amplitude of the first diaphragm oscillations of sixth embodiment of the invention；
Figure 13 is showing for the cosine wave signal opposite with the sine wave signal amplitude in Figure 11 of sixth embodiment of the invention
It is intended to；
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The mobile terminal of each embodiment of the present invention is realized in description with reference to the drawings.In subsequent description, use
For indicate element such as " module ", " component " or " unit " suffix only for being conducive to explanation of the invention, itself
There is no specific meanings.Therefore, " module " can be used mixedly with " component ".
Mobile terminal can be implemented in a variety of manners.For example, terminal described in the present invention may include such as moving
Phone, smart phone, laptop, digit broadcasting receiver, PDA (personal digital assistant), PAD (tablet computer), PMP
The mobile terminal of (portable media player), navigation device etc. and such as number TV, desktop computer etc. are consolidated
Determine terminal.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that in addition to being used in particular for moving
Except the element of purpose, the construction of embodiment according to the present invention can also apply to the terminal of fixed type.
Fig. 1 to realize the present invention an optional mobile terminal of each embodiment hardware configuration signal.
Mobile terminal 100 may include A/V (audio/video) input unit 120, user input unit 130, sensing unit
140, output unit 150, memory 160, interface unit 170, controller 180 and power supply unit 190 etc..Fig. 1 shows tool
There is the mobile terminal of various assemblies, it should be understood that being not required for implementing all components shown.Can alternatively it implement
More or fewer components.The element of mobile terminal will be discussed in more detail below.
A/V input unit 120 is for receiving audio or video signal.A/V input unit 120 may include 121 He of camera
Microphone 122, camera 121 is to the static images obtained in video acquisition mode or image capture mode by image capture apparatus
Or the image data of video is handled.Treated, and picture frame may be displayed on display unit 151.It is handled through camera 121
Picture frame afterwards can store in memory 160 (or other storage mediums), can provide two according to the construction of mobile terminal
A or more camera 121.Microphone 122 can be in telephone calling model, logging mode, speech recognition mode etc. operational mode
In via microphone receive sound (audio data), and can by such acoustic processing be audio data.Microphone 122 can
(or inhibition) algorithm is eliminated to implement various types of noises to eliminate (or inhibition) in the process for sending and receiving audio signal
The noise of middle generation or interference.
The order that user input unit 130 can be inputted according to user generates key input data to control each of mobile terminal
Kind operation.User input unit 130 allows user to input various types of information, and may include keyboard, metal dome, touch
Plate (for example, the sensitive component of detection due to the variation of resistance, pressure, capacitor etc. caused by being contacted), idler wheel, rocking bar etc.
Deng.Particularly, when touch tablet is superimposed upon in the form of layer on display unit 151, touch screen can be formed.
Sensing unit 140 detects the current state of mobile terminal 100, (for example, mobile terminal 100 opens or closes shape
State), the position of mobile terminal 100, user is for the presence or absence of contact (that is, touch input) of mobile terminal 100, mobile terminal
100 orientation, the acceleration or deceleration movement of mobile terminal 100 and direction etc., and generate for controlling mobile terminal 100
The order of operation or signal.For example, sensing unit 140 can sense when mobile terminal 100 is embodied as sliding-type mobile phone
The sliding-type phone is to open or close.In addition, sensing unit 140 be able to detect power supply unit 190 whether provide electric power or
Whether person's interface unit 170 couples with external device (ED).Sensing unit 140 may include proximity sensor 141 etc..
Interface unit 170 be used as at least one external device (ED) connect with mobile terminal 100 can by interface.For example,
External device (ED) may include wired or wireless headphone port, external power supply (or battery charger) port, wired or nothing
Line data port, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Identification module can be storage and use each of mobile terminal 100 for verifying user
It plants information and may include subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM)
Etc..In addition, the device (hereinafter referred to as " identification device ") with identification module can take the form of smart card, therefore, know
Other device can be connect via port or other attachment devices with mobile terminal 100.Interface unit 170, which can be used for receiving, to be come from
The input (for example, data information, electric power etc.) of external device (ED) and the input received is transferred in mobile terminal 100
One or more elements can be used for transmitting data between mobile terminal and external device (ED).
In addition, when mobile terminal 100 is connect with external base, interface unit 170 may be used as allowing will be electric by it
Power, which is provided from pedestal to the path or may be used as of mobile terminal 100, allows the various command signals inputted from pedestal to pass through it
It is transferred to the path of mobile terminal.The various command signals or electric power inputted from pedestal, which may be used as mobile terminal for identification, is
The no signal being accurately fitted on pedestal.Output unit 150 is configured to provide with vision, audio and/or tactile manner defeated
Signal (for example, audio signal, vision signal, alarm signal, vibration signal etc.) out.
Output unit 150 may include display unit 151, audio output module 152, alarm unit 153 etc..
Display unit 151 may be displayed on the information handled in mobile terminal 100.For example, when mobile terminal 100 is in electricity
When talking about call mode, display unit 151 can show and converse or other communicate (for example, text messaging, multimedia file
Downloading etc.) relevant user interface (UI) or graphic user interface (GUI).When mobile terminal 100 is in video calling mode
Or when image capture mode, display unit 151 can show captured image and/or received image, show video or figure
Picture and the UI or GUI of correlation function etc..
Meanwhile when display unit 151 and touch tablet in the form of layer it is superposed on one another to form touch screen when, display unit
151 may be used as input unit and output device.Display unit 151 may include liquid crystal display (LCD), thin film transistor (TFT)
In LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc. at least
It is a kind of.Some in these displays may be constructed such that transparence to allow user to watch from outside, this is properly termed as transparent
Display, typical transparent display can be, for example, TOLED (transparent organic light emitting diode) display etc..According to specific
Desired embodiment, mobile terminal 100 may include two or more display units (or other display devices), for example, moving
Dynamic terminal may include outernal display unit (not shown) and inner display unit (not shown).Touch screen can be used for detecting touch
Input pressure and touch input position and touch input area.
Audio output module 152 can mobile terminal be in call signal reception pattern, call mode, logging mode,
When under the isotypes such as speech recognition mode, broadcast reception mode, the audio data transducing audio stored in memory 160 is believed
Number and export be sound.Moreover, audio output module 152 can provide to mobile terminal 100 execute specific function it is related
Audio output (for example, call signal receives sound, message sink sound etc.).Audio output module 152 may include raising
Sound device, buzzer etc..
Alarm unit 153 can provide output notifying event to mobile terminal 100.Typical event can be with
Including calling reception, message sink, key signals input, touch input etc..Other than audio or video output, alarm unit
153 can provide output in different ways with the generation of notification event.For example, alarm unit 153 can be in the form of vibration
Output is provided, when receiving calling, message or some other entrance communications (incomingcommunication), alarm list
Member 153 can provide tactile output (that is, vibration) to notify to user.By providing such tactile output, even if
When the mobile phone of user is in the pocket of user, user also can recognize that the generation of various events.Alarm unit 153
The output of the generation of notification event can be provided via display unit 151 or audio output module 152.
Memory 160 can store the software program etc. of the processing and control operation that are executed by controller 180, Huo Zheke
Temporarily to store oneself data (for example, telephone directory, message, still image, video etc.) through exporting or will export.And
And memory 160 can store about the vibrations of various modes and audio signal exported when touching and being applied to touch screen
Data.
Memory 160 may include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, more
Media card, card-type memory (for example, SD or DX memory etc.), random access storage device (RAM), static random-access storage
Device (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read only memory
(PROM), magnetic storage, disk, CD etc..Moreover, mobile terminal 100 can execute memory with by network connection
The network storage device of 160 store function cooperates.
The overall operation of the usually control mobile terminal of controller 180.For example, controller 180 executes and voice communication, data
Communication, video calling etc. relevant control and processing.In addition, controller 180 may include for reproducing (or playback) more matchmakers
The multi-media module 181 of volume data, multi-media module 181 can construct in controller 180, or can be structured as and control
Device 180 separates.Controller 180 can be with execution pattern identifying processing, by the handwriting input executed on the touchscreen or picture
It draws input and is identified as character or image.
Power supply unit 190 receives external power or internal power under the control of controller 180 and provides operation each member
Electric power appropriate needed for part and component.
Various embodiments described herein can be to use the calculating of such as computer software, hardware or any combination thereof
Machine readable medium is implemented.Hardware is implemented, embodiment described herein can be by using application-specific IC
(ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), scene can
Programming gate array (FPGA), controller, microcontroller, microprocessor, is designed to execute function described herein processor
At least one of electronic unit is implemented, and in some cases, such embodiment can be implemented in controller 180.
For software implementation, the embodiment of such as process or function can with allow to execute the individual of at least one functions or operations
Software module is implemented.Software code can by the software application (or program) write with any programming language appropriate Lai
Implement, software code can store in memory 160 and be executed by controller 180.
So far, oneself is through describing mobile terminal according to its function.In the following, for the sake of brevity, will description such as folded form,
Slide type mobile terminal in various types of mobile terminals of board-type, oscillating-type, slide type mobile terminal etc., which is used as, to be shown
Example.Therefore, the present invention can be applied to any kind of mobile terminal, and be not limited to slide type mobile terminal.
By taking mobile terminal of mobile telephone as an example, user hold mobile terminal the case where it is as shown in Figure 2.
Based on above-mentioned mobile terminal hardware configuration, each embodiment of the invention is proposed.
As shown in figure 5, first embodiment of the invention proposes a kind of loudspeaker assembly, comprising: sounding speaker unit 501 helps
Power speaker unit 502 and sound chamber Cavity unit 503, wherein sounding speaker unit 501 and power-assisted speaker unit 502 share sound chamber
Sound chamber 504 after provided by Cavity unit 503；
It is vibrated by the vibrating diaphragm of sounding speaker unit 501 and the vibrating diaphragm synchronous backward of power-assisted speaker unit 502, enhances sounding
The low frequency loudness of the outer playback frequency of speaker unit 501；In Fig. 5 51 be sounding speaker unit 501 vibrating diaphragm, 52 be power-assisted speaker unit
502 vibrating diaphragm.
When vibration in the same direction synchronous with the vibrating diaphragm of power-assisted speaker unit 502 by the vibrating diaphragm of sounding speaker unit 501, weaken hair
The low frequency loudness of the outer playback frequency of sound speaker unit 501.
Optionally, the vibrating diaphragm of sounding speaker unit 501 and the vibrating diaphragm synchronous backward of power-assisted speaker unit 502 vibrate, comprising:
In synchronization, the vibrating diaphragm of sounding speaker unit 501 and the vibrating diaphragm of power-assisted speaker unit 502 are recessed relative to the rear sound chamber 504
Convex state is opposite.Such as: when the vibrating diaphragm of sounding speaker unit 501 outwardly protrudes, the vibrating diaphragm of power-assisted speaker unit 502 sound backward
504 sunken inside of chamber, sounding speaker unit 501 and power-assisted speaker unit 502 still are able to sound chamber 504 after guaranteeing in diaphragm oscillations
Constancy of volume, i.e., after 504 inside and outside air pressure balance of sound chamber, since sounding speaker unit 501 is main outside microphone device, hair
The Oscillation Amplitude of the vibrating diaphragm of sound speaker unit 501 not will receive the influence of rear 504 constancy of volume of sound chamber of sealing, more can instead
Freely, the effect of the vibrating diaphragm amplitude superposition of sounding speaker unit 501 is enhancing for enough vibrations.And in the loudspeaker assembly of the prior art
The rear sound chamber 504 of only one speaker unit, sealing can limit the diaphragm oscillations of unique speaker unit, so sound
The reduction degree of sound is bad, and the loudspeaker assembly of the embodiment of the present invention can enhance the low frequency loudness of outer playback frequency, thus
Largely promote the playback of audio.
The vibrating diaphragm of sounding speaker unit 501 vibration in the same direction synchronous with the vibrating diaphragm of power-assisted speaker unit 502, comprising: same
Moment, the vibrating diaphragm of sounding speaker unit 501 and the vibrating diaphragm of power-assisted speaker unit 502 are relative to the equal convex of the rear sound chamber 504
Or it concaves.Specifically, when sounding speaker unit 501 vibrating diaphragm and power-assisted speaker unit 502 vibrating diaphragm relative to it is described after
The convex or when concaving simultaneously of sound chamber 504, largely to the low frequency loudness of the outer playback frequency of sounding speaker unit 501
Weakened, enhances the high frequency loudness of outer playback frequency accordingly, therefore be more suitable for the output of high-frequency sound, such as: alarm
The sharp sound such as sound or alarm call.
Optionally, the vibrating diaphragm of sounding speaker unit 501 is towards 504 outside of sound chamber after described；Because of sounding speaker unit 501
It is mainly responsible for outside sounding, so its vibrating diaphragm is towards 504 outside of sound chamber after described, and power-assisted speaker unit 502 is to aid in
501 sounding of sounding speaker unit, the sound that power-assisted speaker unit 502 issues digests inside loudspeaker assembly, Huo Zhe
Carry out noise reduction in mobile terminal where loudspeaker assembly, therefore the vibrating diaphragm of power-assisted speaker unit 502 is towards sound chamber 504 after described
Outside or inside, the sound that can't be issued with sounding speaker unit 501 are superimposed.
The present embodiment is mainly introduced in the case where the vibrating diaphragm of power-assisted speaker unit 502 is towards 504 inside of sound chamber after described:
The generation side that the vibrating diaphragm of the sounding speaker unit 501 and the vibrating diaphragm synchronous backward of power-assisted speaker unit 502 vibrate
Formula includes: that the positive and negative anodes of sounding speaker unit 501 and the positive and negative anodes of power-assisted speaker unit 502 load amplitude outer playback frequency in the same direction
Electric signal；
The vibrating diaphragm of the sounding speaker unit 501 generation side vibrated in the same direction synchronous with the vibrating diaphragm of power-assisted speaker unit 502
Formula includes: that positive and negative anodes and the positive and negative anodes of power-assisted speaker unit 502 of sounding speaker unit 501 load opposite outer of amplitude respectively and put
Audio electrical signal.Putting audio electrical signal outside described is usually sine wave signal, and opposite with sine wave signal amplitude is exactly cosine
Wave signal.
Optionally, the low frequency is the sound that frequency is less than or equal to 1KHz, and the high frequency is frequency more than or equal to 4KHz's
Sound.
In the present embodiment while the figure for taking into account the mobile terminal where loudspeaker assembly is ultra-thin light and handy, moreover it is possible to be promoted
The result of broadcast of the outer playback frequency of mobile terminal.
As shown in fig. 6, second embodiment of the invention proposes a kind of loudspeaker assembly, comprising: sounding speaker unit 501 helps
Power speaker unit 502 and sound chamber Cavity unit 503, wherein sounding speaker unit 501 and power-assisted speaker unit 502 share sound chamber
Sound chamber 504 after provided by Cavity unit 503；
When being vibrated by the vibrating diaphragm of sounding speaker unit 501 and the vibrating diaphragm synchronous backward of power-assisted speaker unit 502, enhancing hair
The low frequency loudness of the outer playback frequency of sound speaker unit 501；In Fig. 6 51 be sounding speaker unit 501 vibrating diaphragm, 52 be power-assisted loudspeaking list
The vibrating diaphragm of member 502.
When vibration in the same direction synchronous with the vibrating diaphragm of power-assisted speaker unit 502 by the vibrating diaphragm of sounding speaker unit 501, weaken hair
The low frequency loudness of the outer playback frequency of sound speaker unit 501.
Optionally, the vibrating diaphragm of sounding speaker unit 501 and the vibrating diaphragm synchronous backward of power-assisted speaker unit 502 vibrate, comprising:
In synchronization, the vibrating diaphragm of sounding speaker unit 501 and the vibrating diaphragm of power-assisted speaker unit 502 are recessed relative to the rear sound chamber 504
Convex state is opposite.Such as: when the vibrating diaphragm of sounding speaker unit 501 outwardly protrudes, the vibrating diaphragm of power-assisted speaker unit 502 sound backward
504 sunken inside of chamber, sounding speaker unit 501 and power-assisted speaker unit 502 still are able to sound chamber 504 after guaranteeing in diaphragm oscillations
Constancy of volume, i.e., after 504 inside and outside air pressure balance of sound chamber, since sounding speaker unit 501 is main outside microphone device, hair
The Oscillation Amplitude of the vibrating diaphragm of sound speaker unit 501 not will receive the influence of rear 504 constancy of volume of sound chamber of sealing, more can instead
Freely, the effect of the vibrating diaphragm amplitude superposition of sounding speaker unit 501 is enhancing for enough vibrations.And in the loudspeaker assembly of the prior art
The rear sound chamber 504 of only one speaker unit, sealing can limit the diaphragm oscillations of unique speaker unit, so sound
The reduction degree of sound is bad, and the loudspeaker assembly of the embodiment of the present invention can enhance the low frequency loudness of outer playback frequency, thus
Largely promote the playback of audio.
The vibrating diaphragm of sounding speaker unit 501 vibration in the same direction synchronous with the vibrating diaphragm of power-assisted speaker unit 502, comprising: same
Moment, the vibrating diaphragm of sounding speaker unit 501 and the vibrating diaphragm of power-assisted speaker unit 502 are relative to the equal convex of the rear sound chamber 504
Or it concaves.Specifically, when sounding speaker unit 501 vibrating diaphragm and power-assisted speaker unit 502 vibrating diaphragm relative to it is described after
The convex or when concaving simultaneously of sound chamber 504, largely to the low frequency loudness of the outer playback frequency of sounding speaker unit 501
Weakened, enhances the high frequency loudness of outer playback frequency accordingly, therefore be more suitable for the output of high-frequency sound, such as: alarm
The sharp sound such as sound or alarm call.
Optionally, the vibrating diaphragm of sounding speaker unit 501 is towards 504 outside of sound chamber after described；Because of sounding speaker unit 501
It is mainly responsible for outside sounding, so its vibrating diaphragm is towards 504 outside of sound chamber after described, and power-assisted speaker unit 502 is to aid in
501 sounding of sounding speaker unit, the sound that power-assisted speaker unit 502 issues digests inside loudspeaker assembly, Huo Zhe
Carry out noise reduction in mobile terminal where loudspeaker assembly, therefore the vibrating diaphragm of power-assisted speaker unit 502 is towards sound chamber 504 after described
Outside or inside, the sound that can't be issued with sounding speaker unit 501 are superimposed.
The present embodiment is mainly introduced in the case where the vibrating diaphragm of power-assisted speaker unit 502 is towards 504 outside of sound chamber after described:
The vibrating diaphragm of the sounding speaker unit 501 generation side vibrated in the same direction synchronous with the vibrating diaphragm of power-assisted speaker unit 502
Formula includes: that in the same direction described of the positive and negative anodes load amplitude of positive and negative anodes and the power-assisted speaker unit 502 of sounding speaker unit 501 outer is put
The electric signal of audio；
The generation side that the vibrating diaphragm of the sounding speaker unit 501 and the vibrating diaphragm synchronous backward of power-assisted speaker unit 502 vibrate
Formula includes: that positive and negative anodes and the positive and negative anodes of power-assisted speaker unit 502 of sounding speaker unit 501 load opposite described of amplitude respectively
The electric signal of outer playback frequency.It is described it is outer to put audio electrical signal be usually sine wave signal, it is opposite with sine wave signal amplitude just
It is cosine wave signal.
Optionally, the low frequency is the sound that frequency is less than or equal to 1KHz, and the high frequency is frequency more than or equal to 4KHz's
Sound.
As shown in fig. 7, third embodiment of the invention proposes a kind of loudspeaker assembly, comprising: sounding speaker unit 501 helps
Power speaker unit 502 and sound chamber Cavity unit 503, wherein sounding speaker unit 501 and power-assisted speaker unit 502 share sound chamber
Sound chamber 504 after provided by Cavity unit 503；
It is vibrated by the vibrating diaphragm of sounding speaker unit 501 and the vibrating diaphragm synchronous backward of power-assisted speaker unit 502, enhances sounding
The low frequency loudness of the outer playback frequency of speaker unit 501；In Fig. 7 51 be sounding speaker unit 501 vibrating diaphragm, 52 be power-assisted speaker unit
502 vibrating diaphragm.
By the vibration in the same direction synchronous with the vibrating diaphragm of power-assisted speaker unit 502 of the vibrating diaphragm of sounding speaker unit 501, weaken sounding
The low frequency loudness of the outer playback frequency of speaker unit 501.
First embodiment and second embodiment are the vibrating diaphragm and power-assisted speaker unit 502 in sounding speaker unit 501
Technical solution in the identical situation of the size of vibrating diaphragm, in this case, sounding speaker unit 501 and power-assisted loudspeaking list
The quantity of member 502 is equal；Alternatively, otherwise the ratio of number of sounding speaker unit 501 and power-assisted speaker unit 502 can close to 1
Reduce the result of broadcast of outer playback frequency.
What is introduced in the present embodiment Fig. 7 is the vibrating diaphragm of the vibrating diaphragm in sounding speaker unit 501 and power-assisted speaker unit 502
Loudspeaker assembly in the different situation of size, in this case, sounding speaker unit 501 and power-assisted speaker unit
502 quantity can be unequal, need to only guarantee the vibrating diaphragm deformation gross space and power-assisted speaker unit 502 of sounding speaker unit 501
Vibrating diaphragm deformation gross space it is equal.
The direction of the court, vibrating diaphragm institute of the present embodiment shown in Fig. 7 is identical with the first embodiment, power-assisted speaker unit 502
Vibrating diaphragm is also directed towards rear 504 inside of sound chamber.The direction of the court, vibrating diaphragm institute of certain power-assisted speaker unit 502 also can be set into
It is identical as second embodiment.
It is identical as the size of the vibrating diaphragm of power-assisted speaker unit 502 due to the vibrating diaphragm of speaker unit in the present embodiment,
Therefore can according to the specific structure shape of the mobile terminal where loudspeaker assembly and the occupancy situation of inner space come
Flexible setting speaker unit and the position of power-assisted speaker unit 502 and the vibrating diaphragm size of each speaker unit, make loudspeaker assembly
The integrated level of the mobile terminal at place is higher, further saves inner space, keeps mobile terminal more frivolous.
As shown in figure 8, fourth embodiment of the invention proposes a kind of speaker, comprising: 801 He of power amplifier being sequentially connected electrically
Such as first and second or three loudspeaker assemblies 802 as described in embodiment, wherein
Power amplifier 801, the electric signal for the audio to input amplify；
Loudspeaker assembly 802, for carrying out sound-reducing to the electric signal through the amplified audio of power amplifier 801
Output.
Optionally, the speaker further include: control circuit 800；
Power amplifier 801 amplifies the electric signal of the audio of input under the control of control circuit 800.
As shown in figure 9, fifth embodiment of the invention proposes a kind of mobile terminal, comprising: audio playing apparatus 901 and such as the
One, loudspeaker assembly 902 described in two or three embodiments, wherein
Audio playing apparatus 901 obtains the electric signal of audio for being decoded to audio file；
Loudspeaker assembly 902, the electric signal for the audio carry out sound-reducing output.
Optionally, the audio playing apparatus, for being decoded to audio file and power amplifier obtains the electric signal of audio.
As shown in Figure 10~13, sixth embodiment of the invention introduces a loudspeaker group of the invention based on the above embodiment
The specific product example of part.
The loudspeaker assembly of the embodiment of the present invention is as shown in Figure 10, comprising: a sounding speaker unit and a power-assisted are raised
Sound unit, sounding speaker unit include: the first vibrating diaphragm 11, first coil 12, the first magnet steel 13 and the first magnet frame 14, power-assisted loudspeaking
Unit includes: the second vibrating diaphragm 21, the second coil 22, the second magnet steel 23 and the second magnet frame 24, the first vibrating diaphragm of sounding speaker unit
11 and the second vibrating diaphragm 21 of power-assisted speaker unit share the rear sound chamber 4 sealed provided by sound chamber Cavity unit.
First vibrating diaphragm 11 is towards on the outside of rear sound chamber, and the second vibrating diaphragm 21 is towards the intracavitary side of rear sound.
Amplitude outer playback frequency in the same direction is loaded by the positive and negative anodes of sounding speaker unit and the positive and negative anodes of power-assisted speaker unit
Electric signal, to realize the first vibrating diaphragm 11 of sounding speaker unit and 21 synchronous backward of the second vibrating diaphragm vibration of power-assisted speaker unit.
The outer audio electrical signal of putting is usually sine wave signal 31 as shown in figure 11, when the first vibrating diaphragm 11 is synchronous with the second vibrating diaphragm 21 anti-
To when vibration, the reinforcing effect of the superposition amplitude 33 of the first vibrating diaphragm 11 vibration is as shown in figure 12.
Opposite outer of amplitude is loaded respectively by the positive and negative anodes of sounding speaker unit and the positive and negative anodes of power-assisted speaker unit to put
Audio electrical signal, the first vibrating diaphragm 11 vibration in the same direction synchronous with the second vibrating diaphragm 21 of power-assisted speaker unit to realize sounding speaker unit
It is dynamic.The outer audio electrical signal of putting is usually sine wave signal 31 as shown in figure 11, opposite with sine wave signal amplitude such as figure
Cosine wave signal 32 shown in 13.The effect of the superposition amplitude 33 of first vibrating diaphragm 11 vibration is to weaken.
Optionally, the low frequency is the sound that frequency is less than or equal to 1KHz, and the high frequency is frequency more than or equal to 4KHz's
Sound.
The loudspeaker assembly of the embodiment of the present invention includes at least following three kinds of operating modes:
Mode one:
The sine wave signal 31 for putting audio electrical signal outside inputs, and the first vibrating diaphragm 11 is vibrated according to sine wave oscillations track, the
Two vibrating diaphragms 21 do not work, not input signal.First vibrating diaphragm 11 pushes air vibration, converts electrical signals into acoustical signal, rear sound chamber
Volume is certain, and the first vibrating diaphragm 11 is equivalent to piston motion during vibration, and the size of rear sound chamber determines the first vibrating diaphragm 11
The amplitude of amplitude, the first vibrating diaphragm 11 is bigger, and the loudness of low-frequency sound is bigger, and therefore, rear sound chamber is bigger, and low-frequency effect is better, sound
Sound is more interesting to listen to.This mode is equivalent to the case where in the prior art only including the loudspeaker assembly of a speaker unit.
Mode two:
The sine wave signal 31 for putting audio electrical signal outside inputs, and the first vibrating diaphragm 11 is vibrated according to sine wave oscillations track, the
What two vibrating diaphragms 21 also synchronized vibrates according to sine wave oscillations track, and the first vibrating diaphragm 11 and the second vibrating diaphragm 21 push air to shake simultaneously
It is dynamic, acoustical signal is converted electrical signals into, two sine-wave superimposeds generate overlaid waveforms, and the amplitude of the first vibrating diaphragm 11 obviously increases, because
Synchronous with the amplitude of the second vibrating diaphragm 21 for the first vibrating diaphragm 11, the resistance of the first vibrating diaphragm 11 vibration Shi Shouhou sound chamber becomes smaller, therefore, vibration
Width is bigger, and the effect of low frequency is better, and sound is more interesting to listen to, melodious.
Mode three:
The sine wave signal 31 for putting audio electrical signal outside inputs, and the first vibrating diaphragm 11 is vibrated according to sine wave oscillations track, the
One vibrating diaphragm 11 pushes air vibration, converts electrical signals into acoustical signal, and the second vibrating diaphragm 21 is vibrated according to cosine wave oscillation trajectory, the
Two vibrating diaphragms 21 push air vibration, convert electrical signals into acoustical signal, and because rear sound chamber volume is certain, two vibrating diaphragms are squeezed or drawn simultaneously
The cavity air of rear sound chamber is stretched, two vibrating diaphragms are become smaller by cavity effects of air pressure, amplitude, it is suitable for the output of high-frequency sound, such as:
Personalized alert class sound etc..
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, computer, clothes
Business device, air conditioner or the network equipment etc.) execute method described in each embodiment of the present invention.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (9)
1. a kind of loudspeaker assembly, which is characterized in that the loudspeaker assembly includes: sounding speaker unit, power-assisted speaker unit
With sound chamber Cavity unit, wherein sounding speaker unit and power-assisted speaker unit share rear sound chamber provided by sound chamber Cavity unit；
It is vibrated, is enhanced outside sounding speaker unit by the vibrating diaphragm of sounding speaker unit and the vibrating diaphragm synchronous backward of power-assisted speaker unit
The low frequency loudness of playback frequency；
By the vibration in the same direction synchronous with the vibrating diaphragm of power-assisted speaker unit of the vibrating diaphragm of sounding speaker unit, weaken outside sounding speaker unit
The low frequency loudness of playback frequency；
The vibrating diaphragm of sounding speaker unit and the vibrating diaphragm synchronous backward of power-assisted speaker unit vibrate, comprising: in synchronization, sounding is raised
The vibrating diaphragm of sound unit is relative to the concave-convex state of the rear sound chamber and the vibrating diaphragm of power-assisted speaker unit relative to the rear sound chamber
Concave-convex state is opposite；
The vibrating diaphragm of sounding speaker unit vibration in the same direction synchronous with the vibrating diaphragm of power-assisted speaker unit, comprising: in synchronization, sounding is raised
The vibrating diaphragm of sound unit and the vibrating diaphragm of power-assisted speaker unit relative to the equal convex of the sound chamber afterwards or concave.
2. loudspeaker assembly as described in claim 1, which is characterized in that in the vibrating diaphragm and power-assisted loudspeaking list of sounding speaker unit
In the identical situation of size of the vibrating diaphragm of member, the quantity of sounding speaker unit and power-assisted speaker unit is equal；
In the different situation of size of the vibrating diaphragm of the vibrating diaphragm and power-assisted speaker unit of sounding speaker unit, sounding loudspeaking
The vibrating diaphragm deformation gross space of unit and the vibrating diaphragm deformation gross space of power-assisted speaker unit are equal.
3. loudspeaker assembly as described in claim 1, which is characterized in that the vibrating diaphragm of sounding speaker unit is towards sound chamber after described
Outside；
In the case where the vibrating diaphragm of power-assisted speaker unit side intracavitary towards the sound afterwards:
The producing method that the vibrating diaphragm of the sounding speaker unit and the vibrating diaphragm synchronous backward of power-assisted speaker unit vibrate includes: sounding
The positive and negative anodes of speaker unit and the positive and negative anodes of power-assisted speaker unit load in the same direction outer of amplitude respectively and put audio electrical signal；
The vibrating diaphragm of the sounding speaker unit producing method vibrated in the same direction synchronous with the vibrating diaphragm of power-assisted speaker unit includes: sounding
The positive and negative anodes of speaker unit and the positive and negative anodes of power-assisted speaker unit load opposite outer of amplitude respectively and put audio electrical signal.
4. loudspeaker assembly as described in claim 1, which is characterized in that the vibrating diaphragm of sounding speaker unit is towards sound chamber after described
Outside；
In the case where the vibrating diaphragm of power-assisted speaker unit is towards after described on the outside of sound chamber:
The producing method that the vibrating diaphragm of the sounding speaker unit and the vibrating diaphragm synchronous backward of power-assisted speaker unit vibrate includes: sounding
The electric signal of the positive and negative anodes of speaker unit and the positive and negative anodes of power-assisted the speaker unit outer playback frequency that load amplitude respectively opposite；
The vibrating diaphragm of the sounding speaker unit producing method vibrated in the same direction synchronous with the vibrating diaphragm of power-assisted speaker unit includes: sounding
The positive and negative anodes of speaker unit and the positive and negative anodes of power-assisted speaker unit load the electric signal of the amplitude outer playback frequency in the same direction respectively.
5. loudspeaker assembly as described in claim 1, which is characterized in that the low frequency is the sound that frequency is less than or equal to 1KHz
Sound.
6. a kind of speaker, which is characterized in that the speaker includes: the power amplifier being sequentially connected electrically and such as claim 1 ~ 5
Any one of described in loudspeaker assembly, wherein
Power amplifier, the electric signal for the audio to input amplify；
The loudspeaker assembly, it is defeated for carrying out sound-reducing to the electric signal through the amplified audio of the power amplifier
Out.
7. speaker as claimed in claim 6, which is characterized in that the speaker further include: control circuit；
The power amplifier amplifies the electric signal of the audio of input under the control of the control circuit.
8. a kind of mobile terminal, which is characterized in that the mobile terminal includes: audio playing apparatus and such as claim 1 ~ 5
Any one of described in loudspeaker assembly, wherein
The audio playing apparatus obtains the electric signal of audio for being decoded to audio file；
The loudspeaker assembly, the electric signal for the audio carry out sound-reducing output.
9. mobile terminal as claimed in claim 8, which is characterized in that the audio playing apparatus, for audio file into
Row decoding and power amplification obtain the electric signal of audio.
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| CN201611068978.7A CN106534422B (en) | 2016-11-28 | 2016-11-28 | A kind of loudspeaker assembly, speaker and mobile terminal |
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| CN109151667B (en) * | 2018-09-21 | 2024-03-01 | 上海艾为电子技术股份有限公司 | Signal processing method, device and loudspeaker |
| CN112583956B (en) * | 2019-09-30 | 2023-06-20 | 北京小米移动软件有限公司 | Terminal device, audio processing method and device and storage medium |
| CN111262982A (en) * | 2020-01-15 | 2020-06-09 | Oppo广东移动通信有限公司 | Electronic device |
| CN113542472B (en) * | 2020-04-15 | 2022-09-16 | 华为技术有限公司 | Electronic device |
| CN112769989B (en) * | 2021-01-05 | 2023-04-28 | 深圳市锐尔觅移动通信有限公司 | Sound generating device and electronic equipment |
| CN113873407A (en) * | 2021-10-26 | 2021-12-31 | 维沃移动通信有限公司 | Loudspeaker control method, loudspeaker module and electronic equipment |
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| CN101023703A (en) * | 2004-09-13 | 2007-08-22 | 松下电器产业株式会社 | Speaker system |
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| CN103596103A (en) * | 2013-12-06 | 2014-02-19 | 裴维彩 | Double-vibrating-diaphragm loudspeaker box |
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| JP2011101277A (en) * | 2009-11-09 | 2011-05-19 | Alpine Electronics Inc | Speaker system |
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| CN105635892B (en) * | 2014-10-31 | 2018-10-02 | 深圳纽斯声学系统有限公司 | A kind of double membrane resonance speakers of both ends formula |
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| CN101023703A (en) * | 2004-09-13 | 2007-08-22 | 松下电器产业株式会社 | Speaker system |
| JP2013055397A (en) * | 2011-09-01 | 2013-03-21 | Audio Technica Corp | Dynamic microphone unit and dynamic microphone |
| CN103596103A (en) * | 2013-12-06 | 2014-02-19 | 裴维彩 | Double-vibrating-diaphragm loudspeaker box |
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