CN206850832U - A kind of multi-microphone mobile terminal - Google Patents
A kind of multi-microphone mobile terminal Download PDFInfo
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- CN206850832U CN206850832U CN201720767057.3U CN201720767057U CN206850832U CN 206850832 U CN206850832 U CN 206850832U CN 201720767057 U CN201720767057 U CN 201720767057U CN 206850832 U CN206850832 U CN 206850832U
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- microphone
- mobile terminal
- bias voltage
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Abstract
The utility model discloses a kind of multi-microphone mobile terminal, the first microphone is provided with the lower frame of the mobile terminal；Second microphone and the 3rd microphone are provided with upper side frame；The line of first microphone and second microphone is parallel to the left frame of the mobile terminal, also, the line of the first microphone and second microphone is perpendicular to second microphone and the line of the 3rd microphone.In addition, also including microphone control device in above-mentioned multi-microphone mobile terminal, the on off state of each microphone can be controlled.According to scheme provided by the utility model, the layout of each microphone more specification on mobile terminal, the on off state of each microphone can be adjusted dynamically, so that mobile terminal can obtain good de-noising effect under various location status.
Description
Technical field
It the utility model is related to mobile communication technology field, more particularly to a kind of multi-microphone mobile terminal.
Background technology
At present, existing mobile terminal, such as mobile phone, tablet personal computer etc., the overwhelming majority are provided with built-in microphone, use
To receive the acoustic information of user.In addition, in order to eliminate environmental noise, become apparent from the sound of user, it is past in mobile terminal
It is past to be provided with more than one microphone.For example, the lower frame and mobile phone upper rear portion of certain mobile phone are provided with two microphones, below
The microphone of frame is used to gather user voice, and the microphone of upper rear portion is used to eliminate ambient noise；In another example under certain mobile phone
Frame, front upper, upper rear portion are provided with three microphones, and the microphone of lower frame is used to gathering user voice, on front
The microphone of portion and upper rear portion is used to eliminate ambient noise；Etc..
But in existing microphone scheme, the inadequate specification of location layout of microphone, so as to which de-noising effect is not good enough.This
Outside, the putting position regardless of mobile terminal in the prior art, always using fixed microphone collection user voice,
Another or two microphones carry out de-noising.So, when mobile terminal is in some positions, de-noising effect is preferable, in certain
De-noising effect is poor during a little positions, and overall de-noising effect is very unstable.
Utility model content
Therefore, the utility model provides a kind of multi-microphone mobile terminal, to try hard to solve or at least alleviate exist above
The problem of.
According to one side of the present utility model, there is provided a kind of multi-microphone mobile terminal, the lower frame of the mobile terminal
On be provided with the first microphone；Second microphone and the 3rd microphone are provided with the upper side frame of the mobile terminal；First Mike
The line of wind and second microphone is parallel to the left frame of the mobile terminal, also, the company of the first microphone and second microphone
Line is perpendicular to second microphone and the line of the 3rd microphone.
Alternatively, according in multi-microphone mobile terminal of the present utility model, in addition to microphone control device, the wheat
Gram wind control device includes：Gravity sensor, suitable for gathering three change in coordinate axis direction of the mobile terminal in fuselage coordinates system
On acceleration of gravity data；Central processing unit, it is connected with gravity sensor, the gravity collected suitable for receiving gravity sensor
Acceleration information, the use state of mobile terminal is determined according to acceleration of gravity data, and microphone is sent according to use state
Bias voltage setting signal；Codec, it is connected with central processing unit, suitable for receiving microphone bias electricity
Setting signal is pressed, and the bias voltage of microphone is arranged to the magnitude of voltage indicated by the signal；And microphone switch control
Circuit, be connected with codec and powered by microphone bias voltage, suitable for control microphone unlatching,
Closed mode.
Alternatively, according in multi-microphone mobile terminal of the present utility model, central processing unit is MTKMT6797 processing
Device.
Alternatively, according in multi-microphone mobile terminal of the present utility model, use state includes transverse screen state and erected
Screen state.
Alternatively, according in multi-microphone mobile terminal of the present utility model, central processing unit is determined at mobile terminal
When transverse screen state, suitable for send by the bias voltage of the first microphone and second microphone be arranged to first voltage preset value,
The bias voltage of 3rd microphone is arranged to the microphone bias voltage setting signal of second voltage preset value；Central processing unit
When determining that mobile terminal is in portrait layout state, the bias voltage of the second microphone and the 3rd microphone is set suitable for sending
For first voltage preset value, the microphone bias voltage that the bias voltage of the first microphone is arranged to second voltage preset value is set
Confidence number.
Alternatively, according in multi-microphone mobile terminal of the present utility model, first voltage preset value is 2.8V, second
Voltage preset value is 0V.
Alternatively, according in multi-microphone mobile terminal of the present utility model, codec leads to
I2C buses are crossed to be connected with central processing unit.
Alternatively, according in multi-microphone mobile terminal of the present utility model, codec is
ESS ES9118 chips or AKM AK4961 chips.
According to scheme provided by the utility model, the first microphone is provided with the lower frame of mobile terminal, on upper side frame
It is provided with second microphone and the 3rd microphone, the left side of the line of the first microphone and second microphone parallel to mobile terminal
The line of frame, the first microphone and second microphone is perpendicular to second microphone and the line of the 3rd microphone so that this practicality
New microphone layout more specification, is advantageous to improve de-noising effect.Microphone control device of the present utility model can root
Unlatching, the closed mode of each microphone are adjusted according to the location status dynamic of current mobile terminal, so that mobile terminal is each
Good de-noising effect can be obtained under kind location status.
Brief description of the drawings
In order to realize above-mentioned and related purpose, some illustrative sides are described herein in conjunction with following description and accompanying drawing
Face, these aspects indicate the various modes that can put into practice principles disclosed herein, and all aspects and its equivalent aspect
It is intended to fall under in the range of theme claimed.Read following detailed description in conjunction with the accompanying drawings, the disclosure it is above-mentioned
And other purposes, feature and advantage will be apparent.Throughout the disclosure, identical reference generally refers to identical
Part or element.
Fig. 1 shows the schematic diagram of the multi-microphone mobile terminal 100 according to the utility model one embodiment；
Fig. 2 shows the schematic diagram of the microphone control device 200 according to the utility model one embodiment
Fig. 3 shows the schematic diagram in the microphone radio reception region according to the utility model one embodiment.
Embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
Limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.
Fig. 1 shows the schematic diagram of the multi-microphone mobile terminal 100 according to the utility model one embodiment.Such as Fig. 1
Shown, mobile terminal 100 includes three microphones 110~130, wherein, the first microphone 110 is located under mobile terminal 100
On frame, second microphone 120, the 3rd microphone 130 are located on the upper side frame of mobile terminal 100, and the first microphone 110 with
The line 140 of second microphone 120 is parallel to the left frame of mobile terminal 100, the first microphone 110 and second microphone 120
Line 140 perpendicular to the microphone 130 of second microphone 120 and the 3rd line 150.
Fig. 2 shows the schematic diagram of the microphone control device 200 according to the utility model one embodiment.Such as Fig. 2 institutes
Show, microphone control device 200 includes gravity sensor 210, central processing unit 220, codec 230
With microphone switch control circuit 240.
Gravity sensor 210 is suitable to gravity of the collection mobile terminal on three change in coordinate axis direction of fuselage coordinates system and accelerated
Degrees of data.
Central processing unit 220 (CPU, Central Processing Unit) is connected with gravity sensor 210, suitable for connecing
The acceleration of gravity data that gravity sensor 210 collects are received, the use of mobile terminal is determined according to the acceleration of gravity data
State, and microphone bias voltage (MICBIAS) setting signal is sent according to use state.According to a kind of embodiment, centre
Reason device 220 is MTK MT6797 processors.Certainly, in other examples, central processing unit 220 can also be other models
Processor, the utility model is not limited to the concrete model of central processing unit 220.
According to a kind of embodiment, use state includes transverse screen state and portrait layout state.When central processing unit determines movement eventually
When end is in transverse screen state, central processing unit 220, which is sent, to be suitable to the biased electrical of the first microphone 110 and second microphone 120
Pressure is arranged to first voltage preset value, the bias voltage of the 3rd microphone 130 is arranged to the microphone of second voltage preset value
Bias voltage setting signal；When central processing unit determines that mobile terminal is in portrait layout state, central processing unit 220, which is sent, to be suitable to
The bias voltage of the microphone 130 of second microphone 120 and the 3rd is arranged to first voltage preset value, by the first microphone 110
Bias voltage be arranged to the microphone bias voltage setting signal of second voltage preset value.According to a kind of embodiment, the first electricity
Pressure preset value is 2.8V, and second voltage preset value is 0V.Certainly, in other examples, first voltage preset value, the second electricity
Pressure preset value can also be arranged to other numerical value, and the utility model is without limitation.
Codec (CODEC, COder-DECoder) 230 is connected with central processing unit 220, is fitted
In the microphone bias voltage setting signal that reception central processing unit 220 is sent, and the bias voltage of microphone is arranged to this
Magnitude of voltage indicated by signal.According to a kind of embodiment, codec 230 passes through I2C buses and center
Processor 220 connects.Codec 230 for example can be ESS ES9118 chips, AKM AK4961 cores
Piece, but not limited to this.
Microphone switch control circuit 240 is connected with codec 230, and by microphone bias electricity
(MICBIAS) power supply is pressed, suitable for controlling unlatching, the closed mode of microphone.For example, when the wheat corresponding to the first microphone 110
When gram wind bias voltage MICBIAS1 reaches certain threshold value while being arranged to foregoing first voltage preset value (such as MICBIAS1),
First microphone 110 will be opened, in running order；When the microphone bias voltage corresponding to the first microphone 110
When MICBIAS2 is less than certain threshold value while being arranged to foregoing second voltage preset value (such as MICBIAS1), the first microphone
110 will be closed, so as to work.
Based on above description, the microphone control device 200 shown in Fig. 2 can realize following functions：
The acceleration of gravity data that central processing unit 220 is collected based on gravity sensor 210, judge making for mobile terminal
Use state.When mobile terminal is in portrait layout state, central processing unit 220 is compiled to multimedia digital signal by I2C buses and solved
Code device 230, which is sent, to be suitable to (correspond to the bias voltage of the microphone 130 of second microphone 120 and the 3rd in Fig. 2
MICBIAS2, MICBIAS3) it is arranged to 2.8V, the bias voltage (MICBIAS1 corresponded in Fig. 2) by the 1st microphone 110
It is arranged to 0 microphone bias voltage setting signal.Codec 230 receives the signal, by the second wheat
Bias voltage MICBIAS2, MICBIAS3 of gram microphone 130 of wind 120 and the 3rd are arranged to 2.8V, the first microphone 110 it is inclined
Put voltage MICBIAS1 and be arranged to 0V.Microphone switch control circuit 240 is powered by MICBIAS1, MICBIAS2, MICBIAS3,
It is in running order so as to control the microphone 110 of second microphone 120 and the 3rd to open；And the first microphone 130 is closed, no
Work.So, the microphone 130 of second microphone 120 and the 3rd composition microphone array, can preferably be gathered under portrait layout state
The sound of user.Under portrait layout state, the radio reception area for the microphone array that the microphone 130 of second microphone 120 and the 3rd is formed
Domain is as shown in Figure 3.The microphone array that the microphone 130 of second microphone 120 and the 3rd is formed is by the sky around mobile terminal
Between be divided into four regions, wherein, region 310 and 320 (region in i.e. immediately ahead of mobile terminal screen and dead astern) is radio reception
Region, sound therein can be collected by the microphone 130 of second microphone 120 and the 3rd；Region 330 and 340 is (i.e. mobile whole
Hold the region of screen side) it is non-radio reception region, wherein sound can be considered as noise, can not be collected.
When mobile terminal is in transverse screen state, central processing unit 220 is compiled to multimedia digital signal by I2C buses and solved
Code device 230, which is sent, to be suitable to (correspond to the bias voltage of the first microphone 110 and second microphone 120 in Fig. 2
MICBIAS1, MICBIAS2) it is arranged to 2.8V, the bias voltage (MICBIAS3 corresponded in Fig. 2) by the 3rd microphone 130
It is arranged to 0 microphone bias voltage setting signal.Codec 230 receives the signal, by the first wheat
Bias voltage MICBIAS1, MICBIAS2 of gram wind 110 and second microphone 120 are arranged to 2.8V, the 3rd microphone 130 it is inclined
Put voltage MICBIAS3 and be arranged to 0V.Microphone switch control circuit 240 is powered by MICBIAS1, MICBIAS2, MICBIAS3,
It is in running order so as to control the first microphone 110 and second microphone 120 to open；And the 3rd microphone 130 is closed, no
Work.So, the first microphone 110 and second microphone 120 form microphone array, can preferably gather under transverse screen state
The sound of user.
In the specification that this place provides, numerous specific details are set forth.It is it is to be appreciated, however, that of the present utility model
Embodiment can be put into practice in the case of these no details.In some instances, known side is not been shown in detail
Method, structure and technology, so as not to obscure the understanding of this description.
Similarly, it will be appreciated that in order to simplify the disclosure and help to understand one or more in each utility model aspect
Individual, in the description to exemplary embodiment of the present utility model above, each feature of the present utility model is divided together sometimes
Group is into single embodiment, figure or descriptions thereof.However, the method for the disclosure should be construed to reflect following meaning
Figure：The requires of the utility model i.e. claimed is than the feature more features that is expressly recited in each claim.More
Exactly, as the following claims reflect, it is to be less than single reality disclosed above in terms of utility model
Apply all features of example.Therefore, it then follows thus claims of embodiment are expressly incorporated in the embodiment,
Wherein each claim is used as separate embodiments of the present utility model in itself.
Those skilled in the art should be understood the module or unit or group of the equipment in example disclosed herein
Part can be arranged in equipment as depicted in this embodiment, or alternatively can be positioned at and the equipment in the example
In different one or more equipment.Module in aforementioned exemplary can be combined as a module or be segmented into addition multiple
Submodule.
Those skilled in the art, which are appreciated that, to be carried out adaptively to the module in the equipment in embodiment
Change and they are arranged in one or more equipment different from the embodiment.Can be the module or list in embodiment
Member or component be combined into a module or unit or component, and can be divided into addition multiple submodule or subelement or
Sub-component.In addition at least some in such feature and/or process or unit exclude each other, it can use any
Combination is disclosed to all features disclosed in this specification (including adjoint claim, summary and accompanying drawing) and so to appoint
Where all processes or unit of method or equipment are combined.Unless expressly stated otherwise, this specification (including adjoint power
Profit requires, summary and accompanying drawing) disclosed in each feature can be by providing the alternative features of identical, equivalent or similar purpose come generation
Replace.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included some features rather than further feature, but the combination of the feature of different embodiments means in this practicality newly
Within the scope of type and form different embodiments.For example, in the following claims, embodiment claimed
One of any mode can use in any combination.
In addition, be described as herein can be by the processor of computer system or by performing for some in the embodiment
The method or the combination of method element that other devices of the function are implemented.Therefore, have and be used to implement methods described or method
The processor of the necessary instruction of element forms the device for implementing this method or method element.In addition, device embodiment
Element described in this is the example of following device：The device is used to implement by order to implement the element of the purpose of utility model institute
The function of execution.
As used in this, unless specifically stated so, come using ordinal number " first ", " second ", " the 3rd " etc.
Description plain objects are merely representative of the different instances for being related to similar object, and are not intended to imply that the object being so described must
Must have the time it is upper, spatially, in terms of sequence or given order in any other manner.
Although describing the utility model according to the embodiment of limited quantity, above description, this technology are benefited from
It is in field it is clear for the skilled person that in the scope of the utility model thus described, it can be envisaged that other embodiments.In addition,
It should be noted that the language used in this specification primarily to readable and teaching purpose and select, rather than in order to
Explain or limit theme of the present utility model and select.Therefore, without departing from the scope and spirit of the appended claims
In the case of, many modifications and changes will be apparent from for those skilled in the art.For this
The scope of utility model, the disclosure done to the utility model are illustrative and not restrictive, the scope of the utility model
It is defined by the appended claims.
Claims (8)
- A kind of 1. multi-microphone mobile terminal, it is characterised in thatThe first microphone is provided with the lower frame of the mobile terminal；Second microphone and the 3rd microphone are provided with the upper side frame of the mobile terminal；The line of first microphone and the second microphone parallel to the mobile terminal left frame, it is also, described The line of first microphone and the second microphone is perpendicular to the second microphone and the line of the 3rd microphone.
- 2. multi-microphone mobile terminal as claimed in claim 1, it is characterised in that described also including microphone control device Microphone control device includes：Gravity sensor, suitable for gathering acceleration of gravity of the mobile terminal on three change in coordinate axis direction of fuselage coordinates system Data；Central processing unit, it is connected with the gravity sensor, the acceleration of gravity data collected suitable for receiving gravity sensor, The use state of the mobile terminal is determined according to the acceleration of gravity data, and microphone is sent according to the use state Bias voltage setting signal；Codec, it is connected with the central processing unit, is set suitable for receiving the microphone bias voltage Confidence number, and the bias voltage of microphone is arranged to the magnitude of voltage indicated by the signal；AndMicrophone switch control circuit, it is connected with the codec and by the microphone bias voltage Power supply, suitable for controlling unlatching, the closed mode of microphone.
- 3. multi-microphone mobile terminal as claimed in claim 2, it is characterised in that the central processing unit is MTK MT6797 Processor.
- 4. multi-microphone mobile terminal as claimed in claim 2, it is characterised in that the use state include transverse screen state and Portrait layout state.
- 5. multi-microphone mobile terminal as claimed in claim 4, it is characterised in that the central processing unit determines the movement When terminal is in transverse screen state, the bias voltage of first microphone and second microphone is arranged to the first electricity suitable for sending Press preset value, the bias voltage of the 3rd microphone is arranged to the microphone bias voltage setting signal of second voltage preset value；When the central processing unit determines that the mobile terminal is in portrait layout state, suitable for sending the second microphone and The bias voltage of three microphones is arranged to first voltage preset value, and it is pre- that the bias voltage of the first microphone is arranged into second voltage If the microphone bias voltage setting signal of value.
- 6. multi-microphone mobile terminal as claimed in claim 5, it is characterised in that the first voltage preset value is 2.8V, Second voltage preset value is 0V.
- 7. multi-microphone mobile terminal as claimed in claim 2, it is characterised in that the codec It is connected by I2C buses with the central processing unit.
- 8. multi-microphone mobile terminal as claimed in claim 2, it is characterised in that the codec For ESS ES9118 chips or AKM AK4961 chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720767057.3U CN206850832U (en) | 2017-06-28 | 2017-06-28 | A kind of multi-microphone mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720767057.3U CN206850832U (en) | 2017-06-28 | 2017-06-28 | A kind of multi-microphone mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206850832U true CN206850832U (en) | 2018-01-05 |
Family
ID=60803427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720767057.3U Active CN206850832U (en) | 2017-06-28 | 2017-06-28 | A kind of multi-microphone mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206850832U (en) |
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2017
- 2017-06-28 CN CN201720767057.3U patent/CN206850832U/en active Active
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