CN208956331U - A kind of photoelectricity MEMS condenser microphone and electronic equipment - Google Patents
A kind of photoelectricity MEMS condenser microphone and electronic equipment Download PDFInfo
- Publication number
- CN208956331U CN208956331U CN201821332774.4U CN201821332774U CN208956331U CN 208956331 U CN208956331 U CN 208956331U CN 201821332774 U CN201821332774 U CN 201821332774U CN 208956331 U CN208956331 U CN 208956331U
- Authority
- CN
- China
- Prior art keywords
- photoelectricity
- output end
- luminescent device
- mems
- condenser microphone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of photoelectricity MEMS condenser microphone and electronic equipment, wherein in including: MEMS transducer in an acoustic cavity body；The connection of the signal output end of signal processing chip and MEMS transducer, signal processing chip includes signal output end pin and grounding pin；The driving end connection signal output pin of luminescent device.The utility model has the advantages that encapsulating a luminescent device in microphone cavity, luminescent device is driven by the signal output end pin of signal processing chip, reflect the power of voice signal by the brightness of luminescent device, the Sounnd source direction of photoelectricity MEMS condenser microphone can be judged by the light source direction of luminescent device simultaneously, the microphone that client can be helped to understand terminal device is in the open state, avoid the exposure of individual privacy, and signal output end pin and grounding pin are introduced on the microphone of the prior art, signal output end pin is used for connection and power supply line simultaneously, further save cost.
Description
Technical field
The utility model relates to micro-electromechanical system field more particularly to a kind of photoelectricity MEMS condenser microphones and electricity
Sub- equipment.
Background technique
With the development of Technology of Mobile Multimedia, electronic equipment is constantly to miniaturization, integrated trend development.In electroacoustic
In the electronic product in field, microphone is converted to electric signal for acoustical signal.In recent years, microphone structure is commonly utilized in hand
On the electronic equipments such as machine, earphone, laptop, video camera.
Microphone in the prior art converts acoustical signals into electric signal by energy converter first, then passes through circuit
Chip carries out conversion process to electric signal, then accesses electronic equipment.In the prior art, be not provided in electronic equipment about
Remind microphone whether the component of either on or off, under many public places, user is without knowing it, in this case it is not apparent that wheat
Whether gram wind is opened, and may expose individual privacy, further make troubles to user.
Summary of the invention
For the above-mentioned problems in the prior art, a kind of photoelectricity MEMS condenser microphone is now provided and electronics is set
It is standby.
Specific technical solution is as follows:
A kind of photoelectricity MEMS condenser microphone, wherein in including: in an acoustic cavity body
One MEMS transducer；
One signal processing chip is connect with the signal output end of the MEMS transducer, the signal processing core
Piece includes:
One signal output end pin；
One grounding pin；
The driving end of one luminescent device, the luminescent device connects the signal output end pin.
Preferably, the luminescent device includes LED light.
Preferably, the brightness of the luminescent device and the output signal of the signal processing chip are proportional.
Preferably, including a power-supply circuit, the input terminal of the power-supply circuit connect the signal output end pin, are used for
It is obtained from the signal output end pin and stores electric energy.
It preferably, further include a bias supply, the input terminal of the bias supply connects the output end of the power-supply circuit；
The power end of the MEMS transducer is connected to the output end and the grounding pin of the bias supply
Between.
It preferably, further include a metal shell and a substrate, the substrate and the metal shell form the acoustic cavity
Body.
Preferably, an acoustics through-hole is set on the metal shell；
The size of the LED light and the size of the acoustics through-hole match.
Preferably, the substrate is printed circuit board, and the bottom of the printed circuit board is provided with pad.
A kind of electronic equipment, which is characterized in that including photoelectricity MEMS condenser microphone described in any one；
The multiple photoelectricity MEMS condenser microphones of setting, the electronic equipment judge sound source institute in the electronic equipment
In direction, and light the luminescent device in the photoelectricity MEMS condenser microphone of sound source direction.
The technical solution of the utility model beneficial effect is: encapsulating a luminescent device in microphone cavity, shines
Device is driven by the signal output end pin of signal processing chip, and the power of voice signal is reflected by the brightness of luminescent device,
The Sounnd source direction that can judge photoelectricity MEMS condenser microphone by the light source direction of luminescent device simultaneously, can help client
The microphone for understanding terminal device is in the open state, avoids the exposure of individual privacy, and on the microphone of the prior art
It introduces signal output end pin and grounding pin, signal output end pin is used for connection and power supply line simultaneously, further saves
Cost.
Detailed description of the invention
With reference to appended attached drawing, more fully to describe the embodiments of the present invention.However, appended attached drawing is only used for
Bright and elaboration, does not constitute the limitation to the scope of the utility model.
Fig. 1 is the circuit diagram about photoelectricity MEMS condenser microphone in the utility model；
Fig. 2 is the top view about photoelectricity MEMS condenser microphone in the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise for not making creative work
Under every other embodiment obtained, fall within the protection scope of the utility model.
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, but not as the utility model
It limits.
The utility model includes a kind of photoelectricity MEMS condenser microphone, wherein in including: in an acoustic cavity body
One MEMS transducer 1；
One signal processing chip 2 is connect with the signal output end 10 of MEMS transducer 1, and signal processing chip 2 wraps
It includes:
One signal output end pin 20；
One grounding pin 21；
One luminescent device 3, the 30 connection signal output pin 20 of driving end of luminescent device 3.
By above-mentioned photoelectricity MEMS condenser microphone, in conjunction with shown in Fig. 1,2, photoelectricity MEMS condenser microphone is existing
Microphone on add luminescent device 3, signal output end pin 20, grounding pin 21, signal output end pin 20 is used for simultaneously
Connection and power supply line, wherein further including MEMS transducer 1 and signal processing chip 2；
Specifically, MEMS transducer 1 captures acoustic signal, passes through the output of signal output end 10 to signal processing core
Piece 2, signal processing chip 2 convert acoustical signals into current signal, by signal output end pin 20 to trigger luminescent device
3, luminescent device 3 is adjusted brightness by the power of current signal；
Further, when the acoustic signal that MEMS transducer 1 captures increases, signal processing chip 2 is received
The acoustic signal arrived increases, and the current signal strength that signal processing chip 2 is converted at this time increases, and flows through the electric current of luminescent device 3
Increase, then the brightness enhancing of luminescent device 3, i.e., reflect the intensity size of acoustic signal by the brightness of luminescent device 3；And
Under many public arenas, it can judge whether photoelectricity MEMS condenser microphone is opened by the brightness of luminescent device 3, it can be with
The microphone for helping client to understand terminal device is in the open state, avoids the exposure of individual privacy；
Further, a luminescent device is encapsulated in microphone cavity, luminescent device is by the signal of signal processing chip
Output pin driving, the power of voice signal is reflected by the brightness of luminescent device, while can pass through the light of luminescent device
The Sounnd source direction of source walking direction photoelectricity MEMS condenser microphone, the microphone that client can be helped to understand terminal device are in
Opening state avoids the exposure of individual privacy, and signal output end pin and ground connection are introduced on the microphone of the prior art
Pin, signal output end pin are used for connection and power supply line simultaneously, further save cost.
In a kind of preferably embodiment, luminescent device 3 includes LED light.
Specifically, as shown in Fig. 2, luminescent device 3 is using LED light as optimum embodiment, for Mingguang City's electricity MEMS
The realization principle of microphone, but luminescent device 3 is not limited to LED light, and details are not described herein.
In a kind of preferably embodiment, the brightness of luminescent device 3 pass directly proportional to the output signal of signal processing chip 2
System.
Specifically, the brightness of luminescent device 3 and the output signal of signal processing chip 2 are proportional, work as micro-electro-mechanical systems
When the acoustic signal that system energy converter 1 captures increases, the acoustic signal that signal processing chip 2 receives increases, at this time at signal
It manages the current signal strength that chip 2 is converted to increase, the electric current for flowing through luminescent device 3 increases, and then the brightness of luminescent device 3 increases
By force, i.e., reflect the intensity size of acoustic signal by the brightness of luminescent device 3；And under many public arenas, it can pass through
The brightness of luminescent device 3 judges whether photoelectricity MEMS condenser microphone is opened, and client can be helped to understand the wheat of terminal device
Gram wind is in the open state, avoids the exposure of individual privacy, simplifies process complexity, improve the utilization rate of electronic product with
Practicability.
In a kind of preferably embodiment, including a power-supply circuit 4, the input terminal connection signal output end of power-supply circuit 4
Pin 20；
It further include a bias supply 5, the output end of the input terminal connection power-supply circuit 4 of bias supply 5；
The power end 11 of MEMS transducer 1 is connected between the output end of bias supply 5 and grounding pin 21.
Specifically, as shown in Figure 1, photoelectricity MEMS condenser microphone further includes power-supply circuit 4 and bias supply 5, electricity is taken
Circuit 4 is used to obtain and store from signal output end pin 20 electric energy, and the output end of power-supply circuit 4 is for exporting electric energy, respectively
It is powered to signal circuit chip 2, luminescent device 3 and bias supply 5, and power-supply circuit 4 further includes that pressure unit (is being schemed
In be not shown), pressure unit (not shown in FIG.) for reducing signal output end pin 20 to power-supply circuit 4 output end
Voltage；
Further, the output end of the input terminal connection power-supply circuit 4 of bias supply 5, receives the electricity that power-supply circuit 4 exports
Can simultaneously in the output end of bias supply 5 export an operating voltage, with export a bias voltage to MEMS transducer 1 into
Row power supply.
Further include a metal shell (not shown in FIG.) and a substrate 6 in a kind of preferably embodiment, substrate 6 and
Metal shell (not shown in FIG.) forms acoustics cavity.
Specifically, it selects metal shell (not shown in FIG.) as shell, there is the advantage of protection electromagnetic interference, simultaneously
It is matched between metal shell (not shown in FIG.) and substrate 6 well, good acoustics cavity, Yu Shengxue cavity can be formed
Interior, signal processing chip 2 is the major part of the acoustic-electric conversion in entire photoelectricity MEMS condenser microphone, indispensable, and
Driving luminescent device 3 will be triggered by 21 output current signal of signal output end pin further passes through luminescent device
Brightness reflects the power of voice signal, while can judge photoelectricity MEMS condenser microphone by the light source direction of luminescent device
Sounnd source direction, can help client understand terminal device microphone it is in the open state, avoid the exposure of individual privacy, letter
Change process complexity, improves the utilization rate and practicability of electronic product.
In a kind of preferably embodiment, an acoustics through-hole is set in metal shell (not shown in FIG.)；
The size of LED light and the size of acoustics through-hole match.
Specifically, it selects metal shell (not shown in FIG.) as shell, there is the advantage of protection electromagnetic interference, by sound
It learns through-hole to be opened in metal shell (not shown in FIG.), belongs to a kind of application in the prior art in the art；
Details are not described herein；
Further, the size of LED light and the size of acoustics through-hole are matched, the light that LED light issues can pass through
Acoustics through-hole appears, and the intensity size of acoustic signal can be reflected by the brightness of luminescent device 3；And in many public arenas
Under, it can judge whether photoelectricity MEMS condenser microphone is opened by the brightness of luminescent device 3, client can be helped to understand eventually
The microphone of end equipment is in the open state, avoids the exposure of individual privacy, and which simplify process complexities, improves electronics
The utilization rate and practicability of product.
In a kind of preferably embodiment, substrate 6 is printed circuit board, the bottom of printed circuit board be provided with pad (
It is not shown in the figure).
Specifically, substrate 6 uses printed circuit board, and is provided with pad (not shown in FIG.), and pad is (in figure not
Show) for fixing MEMS transducer 1 and signal processing chip 2, and with metal shell (not shown in FIG.) energy
Enough reach good matching effect, the external world is received readily discernible, the voice signal of high-fidelity.
A kind of electronic equipment, which is characterized in that the photoelectricity MEMS condenser microphone including any one；
The multiple photoelectricity MEMS condenser microphones of setting, electronic equipment judge sound source direction, and point in electronic equipment
Luminescent device 3 in the photoelectricity MEMS condenser microphone of bright sound source direction.
Specifically, photoelectricity MEMS condenser microphone can be applied in the electronic equipments such as mobile phone, notebook, electronic equipment
It is interior to reflect the power of voice signal by the brightness of luminescent device by the way that multiple photoelectricity MEMS condenser microphones are arranged,
And the Sounnd source direction that photoelectricity MEMS condenser microphone can be judged by the light source direction of luminescent device, can help client
The microphone for understanding terminal device is in the open state, avoids the exposure of individual privacy, simplifies process complexity, improves electricity
The utilization rate and practicability of sub- product.
The technical solution of the utility model beneficial effect is: encapsulating a luminescent device in microphone cavity, shines
Device is driven by the signal output end pin of signal processing chip, and the power of voice signal is reflected by the brightness of luminescent device,
The Sounnd source direction that can judge photoelectricity MEMS condenser microphone by the light source direction of luminescent device simultaneously, can help client
The microphone for understanding terminal device is in the open state, avoids the exposure of individual privacy, and on the microphone of the prior art
It introduces signal output end pin and grounding pin, signal output end pin is used for connection and power supply line simultaneously, further saves
Cost.
The foregoing is merely the utility model preferred embodiment, be not intended to limit the embodiments of the present invention and
Protection scope should can appreciate that all in the utility model specification and diagram to those skilled in the art
Hold made equivalent replacement and obviously change obtained scheme, the protection model of the utility model should all be included in
In enclosing.
Claims (9)
1. a kind of photoelectricity MEMS condenser microphone, which is characterized in that in including: in an acoustic cavity body
One MEMS transducer；
One signal processing chip is connect with the signal output end of the MEMS transducer, the signal processing chip packet
It includes:
One signal output end pin；
One grounding pin；
The driving end of one luminescent device, the luminescent device connects the signal output end pin.
2. photoelectricity MEMS condenser microphone according to claim 1, which is characterized in that the luminescent device includes LED
Lamp.
3. photoelectricity MEMS condenser microphone according to claim 1, which is characterized in that the brightness of the luminescent device with
The output signal of the signal processing chip is proportional.
4. photoelectricity MEMS condenser microphone according to claim 1, which is characterized in that described including a power-supply circuit
The input terminal of power-supply circuit connects the signal output end pin.
5. photoelectricity MEMS condenser microphone according to claim 4, which is characterized in that further include a bias supply, institute
The input terminal for stating bias supply connects the output end of the power-supply circuit；
The power end of the MEMS transducer is connected between the output end of the bias supply and the grounding pin.
6. photoelectricity MEMS condenser microphone according to claim 2, which is characterized in that further include a metal shell and one
Substrate, the substrate and the metal shell form the acoustics cavity.
7. photoelectricity MEMS condenser microphone according to claim 6, which is characterized in that set on the metal shell
Learn through-hole；
The size of the LED light and the size of the acoustics through-hole match.
8. photoelectricity MEMS condenser microphone according to claim 6, which is characterized in that the substrate is printed circuit
The bottom of plate, the printed circuit board is provided with pad.
9. a kind of electronic equipment, which is characterized in that including the photoelectricity MEMS wheat as described in claim 1-8 any one
Gram wind；
The multiple photoelectricity MEMS condenser microphones of setting, the electronic equipment judge sound source place side in the electronic equipment
To, and light the luminescent device in the photoelectricity MEMS condenser microphone of sound source direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821332774.4U CN208956331U (en) | 2018-08-17 | 2018-08-17 | A kind of photoelectricity MEMS condenser microphone and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821332774.4U CN208956331U (en) | 2018-08-17 | 2018-08-17 | A kind of photoelectricity MEMS condenser microphone and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208956331U true CN208956331U (en) | 2019-06-07 |
Family
ID=66733993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821332774.4U Active CN208956331U (en) | 2018-08-17 | 2018-08-17 | A kind of photoelectricity MEMS condenser microphone and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208956331U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108966102A (en) * | 2018-08-17 | 2018-12-07 | 钰太芯微电子科技（上海）有限公司 | A kind of photoelectricity MEMS condenser microphone and electronic equipment |
-
2018
- 2018-08-17 CN CN201821332774.4U patent/CN208956331U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108966102A (en) * | 2018-08-17 | 2018-12-07 | 钰太芯微电子科技（上海）有限公司 | A kind of photoelectricity MEMS condenser microphone and electronic equipment |
| CN108966102B (en) * | 2018-08-17 | 2024-03-29 | 钰太芯微电子科技（上海）有限公司 | Photoelectric micro-electromechanical system microphone and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108966102A (en) | A kind of photoelectricity MEMS condenser microphone and electronic equipment | |
| CN205566635U (en) | MEMS microphone | |
| CN101170325A (en) | Bluetooth wireless microphone | |
| CN109545216A (en) | A kind of audio recognition method and speech recognition system | |
| CN208241707U (en) | A kind of waterproof mobile phone that can carry bluetooth headset | |
| CN208956331U (en) | A kind of photoelectricity MEMS condenser microphone and electronic equipment | |
| CN2602456Y (en) | Diad socket circuit for beat and sound corrector | |
| CN207530995U (en) | Sound-box device and its microphone array array structure | |
| CN102387454A (en) | Silicon microphone and packaging structure of product applying same | |
| CN209787369U (en) | Waterproof MEMS microphone | |
| CN111327994A (en) | Low-power-consumption microphone, voice control device and voice control method | |
| TWM497896U (en) | Soft film battery-free noise self-muffling type hearing aid | |
| CN201898612U (en) | Silicon microphone and packaging structure applied to silicon microphone products | |
| WO2023116395A1 (en) | Transmitting and receiving integrated acoustic circuit, acoustic chip and control method therefor, and wearable device | |
| CN109068250A (en) | A kind of microphone and electronic equipment | |
| CN201114676Y (en) | Waterproof single directive microphone | |
| CN201134803Y (en) | Bluetooth wireless microphone | |
| CN209283429U (en) | A kind of bone conduction earphone | |
| CN209949416U (en) | MEMS microphone with wireless charging coil | |
| CN109982220B (en) | Terminal device | |
| CN207612407U (en) | Low-power consumption microphone | |
| CN206918720U (en) | Can intercommunication flashlight | |
| CN208522932U (en) | A kind of double magnetic are total to chamber earphone horn | |
| US10547924B2 (en) | Microphone structure and flip-type electronic device | |
| CN101561963A (en) | Multifunction portable type electronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |