CN205491151U - Microphone and mobile terminal - Google Patents
Microphone and mobile terminal Download PDFInfo
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- CN205491151U CN205491151U CN201620111535.0U CN201620111535U CN205491151U CN 205491151 U CN205491151 U CN 205491151U CN 201620111535 U CN201620111535 U CN 201620111535U CN 205491151 U CN205491151 U CN 205491151U
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Abstract
The utility model discloses a microphone and mobile terminal mainly solves the problem that the consumption is big that exists among the prior art. This microphone includes: the MEMS sensor for be the signal of telecommunication with sound signal conversion, the amplifier module disposes to receive the electronic signal and generates signal amplification, the microphone includes the mode of a plurality of differences, and the mode of a plurality of differences includes mode and monitor mode, the microphone still including monitoring the module, is connected with the MEMS sensor for, receives by the microphone signal and the basis of MEMS sensor output when being in the monitor mode whether the voice signal is judged to export and is awaken the host computer of signal in with the dormancy up and awaken up. The utility model provides a whether the microphone has the monitor module, carry out real -time monitor and can judge to produce according to the voice signal and wake the signal up the voice signal when the microphone is in the monitor mode, has reduced the total consumption of system when satisfying the real -time function of microphone, lengthens the stand -by time of microphone.
Description
Technical field
This utility model relates to earphone field, is specifically related to a kind of mike and has the mobile terminal of this mike.
Background technology
MEMS microphone is to use MEMS (Microelectromechanical Systems, MEMS), with
Tradition electret capacitor microphone (ECM) is compared, and has more preferable acoustical behavior, higher signal to noise ratio, preferably
Conforming sensitivity and lower power consumption.MEMS microphone be widely used in voice communication, auditory prosthesis,
The field such as smart mobile phone, notebook computer is to provide higher voice quality.
The MEMS microphone of prior art only has two kinds of duties: shutdown (Power down) pattern is with normal
Work (Normal) pattern.When supply voltage is zero, for shutdown mode, whole mike is in the shape that do not works
State, when supply voltage is running voltage VDD, for normal mode of operation, mike normally works.
The demand of the real-time such as voice assistant, hands-free interface is increased by consumer day by day, common microphone and upper
Machine, it is common that have CODEC or SOC of DSP function, real-time function to be met needs to be constantly in normal work
Operation mode, continuous drain, power consumption is the biggest.
Utility model content
In view of this, this utility model provides a kind of mike, can monitor acoustical signal in monitoring pattern,
Just export wake-up signal when there being the acoustical signal input meeting certain condition, host computer is waken up up, host computer enters
The Premium Features such as row speech recognition, effectively reduce power consumption while meeting requirement of real-time, extend stand-by time.
For reaching this purpose, this utility model by the following technical solutions:
A kind of mike, including:
MEMS sensor, for being converted to the signal of telecommunication by acoustical signal；
Amplifier module, is configured to receive the described signal of telecommunication and generate amplification signal；
Described mike includes that multiple different pattern, the plurality of different pattern include mode of operation and monitor mould
Formula, when described mike is in monitoring pattern, described amplifier module does not works；
Described mike also includes monitoring module, is connected with described MEMS sensor, for being in prison when mike
Receive the signal of described MEMS sensor output when listening pattern and judge whether to export wake-up signal according to described signal,
Described wake-up signal is for waking up up the host computer in dormancy.
Preferably, described monitoring module includes comparator, and described comparator is defeated for relatively described MEMS sensor
The signal amplitude gone out and predetermined amplitude, when the signal amplitude that described MEMS sensor exports is more than predetermined amplitude, institute
State monitoring module output wake-up signal.
Preferably, also include mode selection module, for carrying out not according to its current mike supply voltage detected
With the switching of pattern, described mike has different power consumption, bandwidth and/or signal to noise ratios when running different patterns.
Preferably, described mode selection module includes:
Supply voltage detection module, is used for detecting current mike supply voltage；
Mode decision module, is configured to, when current mike supply voltage changes, determine pattern and produce choosing
Select signal to carry out pattern switching.
Preferably, described mode decision module is configured to, when current mike supply voltage is in the range of first
Mike is switched to the first mode of operation, switches to when current mike supply voltage is in the range of second
Two mode of operations, switch to monitoring pattern when current mike supply voltage is in the range of the 3rd；
Or, described mode decision module is configured to, when receiving the first pulse signal by described mike
Switch between one mode of operation and the second mode of operation, when receiving the second pulse signal, mike is switched to prison
Listen pattern.
Preferably,
Described amplifier module includes the amplifier that multiple power consumption/electric current is identical or different, and described mode decision module is produced
Amplifier or the combination of amplifier that raw selection signal behavior is different access circuit to run different patterns.
Preferably, described mike includes the first signal path and secondary signal path, and every signal path is all provided with
It is equipped with amplifier, and the first signal path has the power consumption higher than secondary signal path or electric current, described mode decision
Module selects the first signal path to access circuit to run the first mode of operation；Described mode decision module selects second
Signal path accesses circuit to run the second mode of operation；Described mode decision module selects not by described first signal
Circuit is accessed so that mike to switch to monitoring pattern in path and described secondary signal path.
Preferably, including a signal path, described signal path being provided with multiple amplifier, described pattern is sentenced
Disconnected module selects all of amplifier to access circuit to run the first mode of operation；Described mode decision module selects more
Cross the part amplifier on described signal path to run the second mode of operation；Described mode decision module selects to not
Described signal path accesses circuit so that mike to switch to monitoring pattern.
Preferably, including a signal path, described signal path is provided with amplifier, described mode decision mould
Block selects the operating current of amplifier to be that the first electric current is to run the first mode of operation；Described mode decision module selects
The operating current of amplifier is that the second electric current is to run the second mode of operation；Described mode decision module selects amplifier
Operating current be zero mike to be switched to monitoring pattern.
This utility model additionally provides a kind of mobile terminal, uses mike as above, wants meeting real-time
Effectively reduce power consumption while asking, extend stand-by time.
For reaching this purpose, this utility model by the following technical solutions:
A kind of mobile terminal, including:
Controller,
Mike as above, is connected with described controller, and what the monitoring module of described mike produced wakes up letter up
Number being waken up up by controller in a dormant state, described mike is switched to work by the pattern of monitoring by described controller
Pattern.
Preferably, prestoring target word signal in described controller, described mike is switched to work by the pattern of monitoring
The signal transmission received after pattern is to described controller, and described controller judges the signal of reception and described target
Whether word signal mates, the most then maintain the mode of operation of described mike, and the most described controller adjusts described
The supply voltage of mike is to be switched to monitoring pattern by described mike by mode of operation.
The beneficial effects of the utility model are:
The mike that this utility model provides has mode of operation and monitoring pattern, also includes monitoring module, monitors
Module carries out real-time monitoring and can be according to acoustical signal judgement when mike is in monitoring pattern to acoustical signal
No generation wake-up signal, can be waken up up the host computer in dormancy by wake-up signal, host computer carries out speech recognition
Deng Premium Features, while meeting mike real-time function, reduce the power consumption that system is total, extend treating of mike
The machine time.
The mobile terminal that this utility model provides have employed above-mentioned mike, and the wake-up signal that mike produces can be by
Controller in a dormant state wakes up up, and mike is switched to mode of operation by the pattern of monitoring by controller, therefore,
Before producing wake-up signal, the part of devices of controller and mike in a dormant state, greatly reduces merit
Consumption, effectively extends the stand-by time of mobile terminal.
Accompanying drawing explanation
By description to this utility model embodiment referring to the drawings, of the present utility model above-mentioned and other mesh
, feature and advantage will be apparent from, in the accompanying drawings:
Fig. 1 is the structural representation of the mike that this utility model detailed description of the invention provides；
Fig. 2 is one of microphone modes switching principle figure of this utility model detailed description of the invention offer；
Fig. 3 is the two of the microphone modes switching principle figure that this utility model detailed description of the invention provides；
Fig. 4 is one of operating diagram of amplifier of microphone of this utility model detailed description of the invention offer；
Fig. 5 is the two of the operating diagram of the amplifier of microphone that this utility model detailed description of the invention provides；
Fig. 6 is the three of the operating diagram of the amplifier of microphone that this utility model detailed description of the invention provides；
Fig. 7 is the structural representation that module monitored by the mike that this utility model detailed description of the invention provides.
In figure, 1, power interface；2, interface；3, output interface；4, MEMS sensor；5, amplifier
Module；51, the first amplifier；52, the second amplifier；53, the 3rd amplifier；6, mode selection module；7、
Power regulator；8, electric charge pump；9, signal path；91, the first signal path；92, secondary signal path；
10, module is monitored；101, input buffer；102, envelope detector；103, comparator；104, letter is waken up up
Number output device.
Detailed description of the invention
Below based on embodiment, this utility model is described, but this utility model is not restricted to these in fact
Execute example.In below details of the present utility model being described, detailed describe some specific detail sections.To this
The description not having these detail sections for skilled person can also understand this utility model completely.In order to avoid
Obscure essence of the present utility model, the narration the most in detail of known method, process, flow process, element.
The embodiment of mike of the present utility model is described referring to Fig. 1 to Fig. 7.
Device embodiment one:
Present embodiments providing a kind of mike, this mike has multiple different pattern, including Working mould
Formula and the pattern of monitoring, reduce the purpose of mike power consumption by the switching between mode of operation and monitoring pattern.
As it is shown in figure 1, this mike have power interface 1, interface 2 and output interface 3, pass through power interface
1 is passed through power supply signal to mike, and the size of supply voltage is determined by the host computer being connected with mike, such as,
When being arranged on the mobile terminals such as mobile phone when mike, the size of supply voltage is controlled by the controller of mobile terminal.
Mike includes MEMS sensor 4, amplifier module 5 and monitors module 10.Wherein, MEMS sensor 4 is used
Be converted to the signal of telecommunication in the acoustical signal received by mike and be transferred to amplifier module 5.Amplifier module 5 connects
Receive the signal of telecommunication of MEMS sensor 4 transmission and generate amplification signal.Monitor module 10 for being in prison when mike
Receive the signal of MEMS sensor 4 output when listening pattern and determine whether to export wake-up signal according to the signal received,
The host computer in a dormant state being connected with mike can be waken up up by wake-up signal, and host computer will be by after waking up up
Mike is switched to mode of operation by the pattern of monitoring, to obtain complete acoustical signal.Host computer can be according to follow-up sound
Tone signal judges whether by mode of operation, mike is switched back into monitoring pattern.Such as, it is arranged on mobile phone when mike
During Deng mobile terminal, the controller of mobile terminal is waken up up by wake-up signal.
The mike that the present embodiment provides has monitoring module 10, when mike is in monitoring pattern to acoustical signal
Carry out real-time monitoring and can judge whether to produce wake-up signal according to acoustical signal, can be by dormancy by wake-up signal
In host computer wake up up, while meeting mike real-time function, reduce the power consumption that system is total, extend mike
Stand-by time.
Further, the mike that the present embodiment provides also includes mode selection module 6.Due to mike only electricity
Source interface 1, ground interface 2 and 3 three interfaces of output interface.Power interface 1 and ground interface 2 are input ports,
Output interface 3 is unidirectional output port.Host computer can only switch by changing power supply and relative signal on the ground
The pattern of mike.Usually, the ground of mike be the ground with host computer altogether, that just can only change on power supply
Signal.The power supply signal output voltage in host computer generally giving mike is variable, can be by changing power supply electricity
Pressure carrys out switch mode.Mode selection module 6 detects current mike supply voltage the current Mike detected according to it
Wind power supply voltage carries out the switching of different mode.Mike has different power consumption, band when running different pattern
Width and/or signal to noise ratio.
Further, power interface 1 is successively through power regulator 7 (low drop out, LDO), electric charge pump 8
It is connected with MEMS sensor 4.MEMS sensor 4 is connected with amplifier module 5 and monitoring module 10 respectively.
Power regulator 7 is also connected with amplifier module 5 and monitors module 10.Power regulator 7 provides solid for chip internal
Fixed running voltage, electric charge pump 8 is for producing HVDC biasing for MEMS sensor 4.Mode selection module 6
It is arranged between power interface 1 and power regulator 7.The outfan monitoring module 10 is connected with output interface 3.
Wherein, no matter mike is in mode of operation or monitors pattern, and power regulator 7, electric charge pump 8 and MEMS pass
Sensor 4 is in duty, monitors the module 10 only work when the pattern of monitoring, and amplifier module 5 is being monitored
Do not work during pattern.
Concrete, as it is shown in fig. 7, monitor input buffer 101, the bag that module 10 farther includes to be sequentially connected with
Network detector 102, comparator 103 and wake-up signal output device 104.Comparator 103 is by envelope detector
The signal amplitude of MEMS sensor 4 output that 102 obtain compares with predetermined amplitude, when the signal amplitude obtained
During more than predetermined amplitude, wake-up signal output device 104 exports a specific wake-up signal.Such as, to Mike
Wind sets one and wakes up thresholding up, such as 50dBSPL, and this sound pressure level is V corresponding to amplitudewakeSignal.When width being detected
Degree is more than VwakeSignal occur just exporting an acquired signal i.e. wake-up signal at outfan, and then wake up host computer up.
Mode selection module 6 farther includes supply voltage detection module and mode decision module.Supply voltage detects
Module is used for detecting current mike supply voltage.Mode decision module is for the current mike power supply according to detection
Voltage determines pattern corresponding thereto, and make mike determined by run under pattern.Further, mould
Formula judge module is configured to, and when current mike supply voltage changes, determines pattern and produces selection signal
With switch mode.
The mode of pattern switching is specifically described below.
Mode one:
The corresponding different mike supply voltage scope of each pattern, mike runs and current mike power supply
The pattern that voltage in-scope is corresponding.
Such as, under general normal mode of operation, the power consumption of mike is big, and performance is high, can apply to music recording,
The occasion that microphone property is had higher requirements by active noise reduction etc..But for general voice call (using more),
Need not the highest performance, if its performance can be reduced to the requirement meeting people's voice call, then power consumption will
It is substantially reduced, thus extends stand-by time.And when need not microphone works, monitoring pattern can be at,
Requirement of real-time can be met again while reducing power consumption.
Therefore, the pattern of mike being set to mode of operation and monitoring pattern, mode of operation includes again the first work
Pattern and the second mode of operation, wherein, the first mode of operation is normal mode of operation, and the second mode of operation is low merit
Consumption pattern.As in figure 2 it is shown, when the current mike supply voltage VDDH of supply voltage detection module detection is at 2.6V
Time to 3.6V, mode decision module determines that pattern should be the first mode of operation, and mode decision module produces choosing
Selecting signal so that mike runs in the first operation mode, the first mode of operation signal bandwidth is 20KHz, letter
Make an uproar ratio high (such as 61dB to 66dB), distortion little (generally less than 1%, be less than when big acoustic pressure is more than 115dBSPL
3%), power consumption is big (such as 90uA to 200uA), is applied to music recording, and microphone property is had by active noise reduction etc.
The occasion of high requirement；When supply voltage detection module detection current mike supply voltage VDDL at 2.1V extremely
Time in the range of 2.4V, mode decision module determines that pattern should be the second mode of operation, and mode decision module produces and selects
Signal so that mike runs in the second operation mode, the signal bandwidth of the second mode of operation is 8KHz, noise
Ratio low (such as about 56dB), distortion is big (not requiring to press loudly less than 3%), (e.g., less than 30uA) low in energy consumption,
It is applied to people's voice call etc. and microphone property is required the highest occasion；When the detection of supply voltage detection module
When current mike supply voltage VDDUL is in the range of 1.6V to 1.9V, mode decision module determines that pattern should be
Monitoring pattern, mode decision module produces and selects signal so that mike switches to monitoring pattern.
Further, between different mike supply voltage scopes, it is provided with tolerance, when current mike power supply
Do not carry out the switching of pattern when voltage is in range of tolerable variance, the impact of burr on power supply can be avoided.Such as, as above
In the embodiment stated, between 2.4 to 2.6V, between scope and 1.9 to 2.1V, scope is range of tolerable variance, this electricity
Pattern before voltage input lower mike in source maintains does not switches.
Mode two:
The switching of pattern is carried out when mike receives pulse signal.Pulse signal can be one, it is also possible to is
Multiple, the pulse signal received can be the same or different.Same with the first mode of operation, the second Working mould
Which is described as a example by formula and monitoring pattern.As it is shown on figure 3, mike supply voltage is VDD, if being currently
One mode of operation, when supply voltage detection module detects preset width Wvdd(such as 1ms), predetermined amplitude Vpulse(example
Such as 400mV) the first pulse signal time, mode decision module produce select signal, by the pattern of mike by first
Mode of operation switches to the second mode of operation, and when supply voltage detection module detects identical with last time the again
During one pulse signal, mode decision module produces and selects signal, the pattern of mike is switched by the second mode of operation
To the first mode of operation.And when supply voltage detection module detects second arteries and veins in opposite direction with the first pulse signal
When rushing signal, mode decision module produces and selects signal, and the pattern of mike is switched to monitoring pattern.Certainly,
Can also be the corresponding preset width of each pattern and the pulse signal of predetermined amplitude, when mike receives pulse
During signal, mike switches to the pattern corresponding with the pulse signal received.
This kind of mode can the reliably action avoid false triggering when switching.
Amplifier module 5 includes the amplifier that multiple power consumption/electric current is identical or different, and mike can be accessed by change
The combination of the amplifier of circuit runs different patterns, and/or, run by changing the operating current of amplifier
Different patterns.
Explanation as a example by aforesaid first mode of operation and the second mode of operation.
As shown in Figure 4, mike has a signal path 9, and amplifier module 5 is configured to, and is arranged at signal
An amplifier on path 9, mode decision module selects the operating current of amplifier to make mike run difference
Mode of operation, i.e. select amplifier operating current be that the first electric current makes mike run the first mode of operation,
The operating current selecting amplifier is that the second electric current makes mike run the second mode of operation, and the first electric current is more than the
Two electric currents, the operating current selecting amplifier is zero to make mike switch to monitoring pattern.
Or, as it is shown in figure 5, mike has a signal path 9, amplifier module 5 is configured to, including
The first amplifier 51 and the second amplifier 52 being positioned on signal path 9, the first amplifier 51 and the second amplifier
Power consumption/the electric current of 52 can be the same or different.Mode decision module selects to put the first amplifier 51 and second
Big device 52 all accesses circuit and makes mike run the first mode of operation, and mode decision module selects selection to cross second
Amplifier 52 and only the first amplifier 51 is accessed circuit and makes mike run the second mode of operation, mode decision
Module selects that amplifier does not access circuit and makes mike switch to monitoring pattern.
Or, as shown in Figure 6, mike has the first signal path 91 and secondary signal path 92, amplifier
Module 5 is configured to, including the first amplifier 51 being positioned on the first signal path 91 and the second amplifier 52 and
The 3rd amplifier 53 being positioned on secondary signal path 92, the first signal path 91 has higher than secondary signal path
The power consumption of 92 or electric current.Mode decision module selects the first signal path 91 to access circuit to make mike run the
One mode of operation, mode decision module selects secondary signal path 92 to access circuit and makes mike operation the second work
Pattern.Switch the first signal path 91 and secondary signal path 92 is accessed circuit and can be realized by two-way switch.Mould
Formula judge module selects that signal path does not access circuit and makes mike switch to monitoring pattern.Certainly, amplifier
Quantity and configuration mode be not limited to said circumstances, it is possible to realize the switching of microphone modes.
The present embodiment provide mike can but be not limited to be simulation silicon microphone.
Device embodiment two:
Present embodiments providing a kind of mobile terminal, it includes controller and the Mike as described in device embodiment one
Wind, mike is connected with controller, and the wake-up signal that the monitoring module 10 of mike produces can be by a dormant state
Controller wake up up, mike is switched to mode of operation by the pattern of monitoring by the controller being waken up.The electricity of mike
Source voltage is also controlled by the controller of mobile terminal.
In one embodiment, the work process of mobile terminal is, mobile terminal in a dormant state time, mike
Being in monitoring pattern, it monitors the signal of module 10 real-time reception MEMS sensor 4 output, when the signal received
When amplitude is more than predetermined amplitude, monitors module 10 and send wake-up signal with by dormancy to the controller of mobile terminal
Controller wakes up up, and controller adjusts the supply voltage of mike so that mike is switched to Working mould by the pattern of monitoring
Formula, such as, switch to the first mode of operation as described in embodiment one or the second mode of operation.
It is further preferred that for preventing false wake-up, prestore target word signal in the controller, mike is by monitoring
The signal transmission that pattern is received after switching to mode of operation, controls to controller to obtain complete acoustical signal
Device judges whether the signal received mates with target word signal, the most then maintain the mode of operation of described mike,
Otherwise controller adjusts the supply voltage of mike and proceeds so that mike is switched to monitoring pattern by mode of operation
Monitor, it is achieved thereby that speech identifying function reduce power consumption further.
The wake-up signal that the mike of the mobile terminal that the present embodiment provides produces can be by controller in a dormant state
Waking up up, mike is switched to mode of operation by the pattern of monitoring by controller, therefore, before producing wake-up signal,
The part of devices of controller and mike is in resting state, is substantially reduced while ensureing requirement of real-time
Power consumption, effectively extends the stand-by time of mobile terminal.
Additionally, it should be understood by one skilled in the art that accompanying drawing is provided to descriptive purpose provided herein,
And accompanying drawing is not necessarily drawn to scale.
It will also be appreciated that example embodiment is provided, so that the disclosure is comprehensive, and by abundant for its scope
Convey to those skilled in the art.A lot of specific detail (such as particular elements, equipment and the example of method) are given
Go out to provide thorough understanding of the disclosure.It will be apparent to one skilled in the art that and need not use specific detail, show
Example embodiment can be carried out with the most different forms, and example embodiment is understood not to limit the disclosure
Scope.In some example embodiments, it is thus well known that device structure and widely-known technique are the most in detail
Describe.
When an element or layer be mentioned as another element or layer " on ", " being engaged to ", " being connected to "
Or when " being coupled to " another element or layer, its can directly on another element or layer, directly engaged, connected
Or be connected to another element or layer, or intermediary element or layer can be there is.By contrast, it is mentioned as when an element
" directly " another element or layer " on ", " being bonded directly to ", " being directly coupled to " or " directly
It is coupled to " another element or during layer, intermediary element or layer can not be there is.For describing its of relation between element
Its word should be explained in a similar manner (such as, " and between " and " directly between ", " neighbouring " is with " straight
Adjoining near " etc.).As used herein, during term "and/or" includes the Listed Items of one or more association
Arbitrary or all combine.
Although term first, second, third, etc. can be used at this describing each element, parts, region, layer
And/or section, but these elements, parts, region, layer and/or section should not be limited by these terms.This
A little terms can be only used for an element, parts, region, layer or section and another element, region, layer or section
Distinguish.The such as term of " first ", " second " and other numerical value term do not mean that secondary when used herein
Sequence or order, unless clearly indicated by the context.Thus, the first element discussed below, parts, region, layer or
Section is referred to alternatively as the second element, parts, region, layer or section, without departing from the teaching of example embodiment.This
Outward, in description of the present utility model, except as otherwise noted, " multiple " are meant that two or more.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for ability
For field technique personnel, this utility model can have various change and change.All in spirit of the present utility model with former
Any modification, equivalent substitution and improvement etc. made within reason, should be included in protection domain of the present utility model it
In.
Claims (10)
1. a mike, including:
MEMS sensor (4), for being converted to the signal of telecommunication by acoustical signal；
Amplifier module (5), is configured to receive the described signal of telecommunication and generate amplification signal；
It is characterized in that, described mike includes that multiple different pattern, the plurality of different pattern include work
Pattern and the pattern of monitoring, when described mike is in monitoring pattern, described amplifier module (5) does not works；
Described mike also includes monitoring module (10), is connected with described MEMS sensor (4), for working as Mike
Wind receives signal that described MEMS sensor (4) exports and judges according to described signal when being in described monitoring pattern
Whether exporting wake-up signal, described wake-up signal is for waking up up the host computer in dormancy.
Mike the most according to claim 1, it is characterised in that described monitoring module (10) includes comparing
Device (103), the signal amplitude that described comparator (103) exports for comparing described MEMS sensor (4) is with pre-
If amplitude, when the signal amplitude that described MEMS sensor (4) exports is more than predetermined amplitude, described monitoring module
(10) output wake-up signal.
Mike the most according to claim 1 and 2, it is characterised in that also include mode selection module (6),
Current mike supply voltage for detecting according to it carries out the switching of different mode, and described mike is running not
With pattern time there is different power consumption, bandwidth and/or signal to noise ratios.
Mike the most according to claim 3, it is characterised in that described mode selection module (6) including:
Supply voltage detection module, is used for detecting current mike supply voltage；
Mode decision module, is configured to, when current mike supply voltage changes, determine pattern and produce choosing
Select signal to carry out pattern switching.
Mike the most according to claim 4, it is characterised in that described mode decision module is configured to,
Mike is switched to the first mode of operation, current Mike time in the range of currently mike supply voltage is in first
Wind power supply voltage be in second in the range of time switch to the second mode of operation, be at current mike supply voltage
Monitoring pattern is switched to time in the range of three；
Or, described mode decision module is configured to, when receiving the first pulse signal by described mike
Switch between one mode of operation and the second mode of operation, when receiving the second pulse signal, mike is switched to prison
Listen pattern.
6. according to the mike described in claim 4 or 5, it is characterised in that described amplifier module (5) wraps
Including the amplifier that multiple power consumption/electric current is identical or different, described mode decision module produces and selects signal behavior different
The combination of amplifier or amplifier accesses circuit to run different patterns.
Mike the most according to claim 6, it is characterised in that described mike includes the first signal path
(91) and secondary signal path (92), every signal path is provided with amplifier, and the first signal path (91)
Having the power consumption higher than secondary signal path (92) or electric current, described mode decision module selects the first signal path
(91) circuit is accessed to run the first mode of operation；Described mode decision module selects secondary signal path (92)
Access circuit to run the second mode of operation；Described mode decision module selects not by described first signal path (91)
Circuit is accessed mike to be switched to monitoring pattern with described secondary signal path (92)；
Or, including a signal path (9), described signal path (9) is provided with multiple amplifier, described
Mode decision module selects all of amplifier to access circuit to run the first mode of operation；Described mode decision module
Select to cross the part amplifier on described signal path to run the second mode of operation；Described mode decision module is selected
Select and described signal path (9) is not accessed circuit so that mike to switch to monitoring pattern.
8. according to the mike described in claim 4 or 5, it is characterised in that include a signal path (9),
Being provided with amplifier on described signal path (9), described mode decision module selects the operating current of amplifier to be the
One electric current is to run the first mode of operation；Described mode decision module selects the operating current of amplifier to be the second electric current
To run the second mode of operation；Described mode decision module selects the operating current of amplifier to be zero to be cut by mike
Shift to monitoring pattern.
9. a mobile terminal, it is characterised in that including:
Controller,
Mike as described in any one of claim 1 to 8, is connected with described controller, the prison of described mike
Controller in a dormant state is waken up up by the wake-up signal listening module (10) to produce, and described controller is by described wheat
Gram wind is switched to mode of operation by the pattern of monitoring.
Mobile terminal the most according to claim 9, it is characterised in that prestore target in described controller
Word signal, the signal transmission that described mike is received after being switched to mode of operation by the pattern of monitoring is to described control
Device, described controller judges whether the signal received mates with described target word signal, the most then maintain described wheat
The mode of operation of gram wind, the most described controller adjust the supply voltage of described mike with by described mike by work
Operation mode switches to monitoring pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620111535.0U CN205491151U (en) | 2016-02-03 | 2016-02-03 | Microphone and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620111535.0U CN205491151U (en) | 2016-02-03 | 2016-02-03 | Microphone and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205491151U true CN205491151U (en) | 2016-08-17 |
Family
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107027163A (en) * | 2017-06-08 | 2017-08-08 | 歌尔股份有限公司 | TypeC earphones wake up mobile phone circuit |
| CN107948865A (en) * | 2017-12-29 | 2018-04-20 | 华景传感科技（无锡）有限公司 | Low-power consumption microphone |
| CN109040905A (en) * | 2018-11-02 | 2018-12-18 | 北京羽扇智信息科技有限公司 | A kind of low-power consumption speaker and its working method |
| CN110049407A (en) * | 2019-05-15 | 2019-07-23 | 昆腾微电子股份有限公司 | Audio frequency apparatus and its control method |
| CN110248267A (en) * | 2019-06-14 | 2019-09-17 | 安徽奥飞声学科技有限公司 | A kind of Rouser and electronic equipment |
| CN112269086A (en) * | 2020-10-23 | 2021-01-26 | 维沃移动通信有限公司 | Charging cable identification method and device, charging cable and readable storage medium |
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2016
- 2016-02-03 CN CN201620111535.0U patent/CN205491151U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107027163A (en) * | 2017-06-08 | 2017-08-08 | 歌尔股份有限公司 | TypeC earphones wake up mobile phone circuit |
| CN107027163B (en) * | 2017-06-08 | 2020-07-10 | 歌尔股份有限公司 | Cell-phone circuit is awaken up to type C earphone |
| CN107948865A (en) * | 2017-12-29 | 2018-04-20 | 华景传感科技（无锡）有限公司 | Low-power consumption microphone |
| CN107948865B (en) * | 2017-12-29 | 2024-03-08 | 华景传感科技（无锡）有限公司 | Low-power consumption microphone |
| CN109040905A (en) * | 2018-11-02 | 2018-12-18 | 北京羽扇智信息科技有限公司 | A kind of low-power consumption speaker and its working method |
| CN110049407A (en) * | 2019-05-15 | 2019-07-23 | 昆腾微电子股份有限公司 | Audio frequency apparatus and its control method |
| CN110248267A (en) * | 2019-06-14 | 2019-09-17 | 安徽奥飞声学科技有限公司 | A kind of Rouser and electronic equipment |
| CN112269086A (en) * | 2020-10-23 | 2021-01-26 | 维沃移动通信有限公司 | Charging cable identification method and device, charging cable and readable storage medium |
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Effective date of registration: 20180725 Address after: 261000 Fengshan Road, Fangzi District, Weifang, Shandong Province, No. 68 Patentee after: Shandong Gettop Acoustic Co.,Ltd. Address before: 100191 Beijing Haidian District Zhichun Road 23 quantum Ginza 1002 room Patentee before: Beijing Acuti Microsystems Co., Ltd. |
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