CN109089185A - A kind of intelligent earphone - Google Patents
A kind of intelligent earphone Download PDFInfo
- Publication number
- CN109089185A CN109089185A CN201810845685.8A CN201810845685A CN109089185A CN 109089185 A CN109089185 A CN 109089185A CN 201810845685 A CN201810845685 A CN 201810845685A CN 109089185 A CN109089185 A CN 109089185A
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- 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
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
-
- 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
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1025—Accumulators or arrangements for charging
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention discloses a kind of intelligent earphones, including acoustic sensor, master control clamp dog, power supply and audio-frequency module, the master control clamp dog includes storage unit, processing unit and control unit, the processing unit is connect with storage unit, control unit respectively, the acoustic sensor is connect with the processing unit, the power supply is connect with control unit, and the audio-frequency module is connect with described control unit.The present invention changes the volume of earphone with varying environment sound by audio-frequency module, reduces influence of the external electromagnetic to headphones sound, improves audition effect；It uses external equipment to charge, and environmental protection has promotional value.
Description
Technical field
The present invention relates to a kind of smart machines, specifically, being to be related to a kind of intelligent earphone.
Background technique
As smartwatch, Intelligent bracelet and intelligent glasses are under the superheated environment of wearable smart machine, intelligent earphone
Also it progresses into the market of consumer, there is the very big rising spaces for the demand of domestic intelligent earphone, so that intelligent earphone
There are biggish development opportunities for product, and the market capacity of the following intelligent earphone will be gradually stable, and scale constantly expands.
In daily life, very extensive application has been obtained as important electronic components in earphone, common at present
Have In-Ear and two kinds of wear-type, and function is more single.Many people get used to putting on earphone audition when movement
Happy or broadcast, but when external environment is excessively noisy, the sound of earphone is just not easy to catch, when environment is very quiet, just
Seeming, sound is larger, when user needs to exchange with the external world, it is also desirable to earphone is taken, this can make troubles to user,
And then influence the experience of user.Most of earphone is all using the continuous electricity of battery at present, this does not meet environmentally friendly concept, and battery
Power-on time is shorter, needs to be replaced frequently, more troublesome.
Summary of the invention
The purpose of the present invention is to provide a kind of intelligent earphone, solve the problems, such as to be that current intelligent earphone cannot judge
External environment has a single function, and is powered using battery, not environmentally.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of intelligent earphone, including acoustic sensor, master control clamp dog, power supply and audio-frequency module, the master control clamp dog include
Storage unit, processing unit and control unit, the processing unit are connect with storage unit, control unit respectively, and the sound is quick
Sensor is connect with the processing unit, and the power supply is connect with control unit, and the audio-frequency module and described control unit connect
It connects.
The audio-frequency module includes signal gain circuit, bandwidth-limited circuit, loudspeaker, microphone, noise reduction unit, described
Signal gain circuit is connect with described control unit, microphone, loudspeaker and bandwidth-limited circuit respectively, the bandpass filtering electricity
The other end on road is connect with the loudspeaker, and the microphone is connect with noise reduction unit.
The signal gain circuit includes diode D1, diode D2, capacitor C1, variable resistance R1, resistance R2, resistance
R3, resistance R4, resistance R5, resistance R6, operational amplifier P described in operational amplifier P, the mono- end Jie of resistance R3 cathode,
The other end is connect with the anode and resistance R4 of the capacitor C1 respectively, and the one end the resistance R5 connect with the cathode of capacitor C1, is another
One end ground connection, the anode of the capacitor C1 connect in described control unit, and the anode of the diode D2 connects in the resistance R4
Upper, cathode connects on the resistance R6, on another anode for terminating at the loudspeaker of the resistance R6, the variable resistance
Positive, another anode for terminating at the diode D1 of capacitor described in mono- end Jie of R1, the anode of the diode D1 connect
On the microphone, cathode, the other end of one end of the resistance R2 and the diode D1 are grounded, the operational amplifier P
Plus earth, the output end of the operational amplifier P connect with the input terminal of the audio bandwidth-limited circuit.
The bandwidth-limited circuit includes capacitor C2, resistance R10, metal-oxide-semiconductor QVT, capacitor C3, diode D3, resistance R7, electricity
Hold C4, triode VT1, resistance R11, variable resistance R9, triode VT2, resistance R8, diode D4, resistance R12, the capacitor
The anode of C2 connects the output end in the operational amplifier P, the cathode of the capacitor C2 respectively with resistance R7, resistance R10 and institute
State capacitor C4 anode connection, another grid for terminating at metal-oxide-semiconductor QVT of the resistance R10, the drain electrode of the metal-oxide-semiconductor QVT with
The anode connection of capacitor C3, the one end the diode D3 connect with the source electrode of the metal-oxide-semiconductor QVT, another terminates at the capacitor
The cathode of C3, the base stage of the triode VT1 are connect with the source electrode of the metal-oxide-semiconductor QVT, and the collector of the triode VT1 connects
Ground, one end of the resistance R11 is connect with the emitter of the triode VT1, the other end is connect with the cathode of the capacitor C3,
The emitter of the triode VT2 is connect with the resistance R7, the base earth of the triode VT2, the triode VT2's
Collector is connect with the resistance R8, the one end the variable resistance R9 connect with the cathode of the capacitor C4, the other end respectively with
The resistance R8 is connected with the anode of diode D4, and one end of the resistance R12 connect with the cathode of the diode D4, is another
End is connect with the cathode of the capacitor C3, and the cathode of the capacitor C3 and the cathode of loudspeaker connect.
Compared with prior art, the invention has the following advantages:
(1) for the present invention by audio signal gain control circuit, extraneous ring cannot be judged by solving current intelligent earphone
The problem of border, changes the volume of earphone with varying environment sound.
(2) present invention reduces influence of the external electromagnetic to headphones sound by audio bandwidth-limited circuit, improves audition
Effect.
(4) present invention is charged using external equipment, and environmental protection has promotional value.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is the structural schematic diagram of the audio-frequency module in Fig. 1.
Fig. 3 is the signal gain circuit and bandwidth-limited circuit in Fig. 2.
Specific embodiment
The invention will be further described with embodiment for explanation with reference to the accompanying drawing, and mode of the invention includes but not only limits
In following embodiment.
Embodiment
As shown in Figure 1-3, a kind of intelligent earphone disclosed by the invention, including acoustic sensor, master control clamp dog, power supply and sound
Frequency module, the master control clamp dog include storage unit, processing unit and control unit, and the processing unit is single with storage respectively
Member, control unit connection, the acoustic sensor are connect with the processing unit, and the power supply is connect with control unit, described
Audio-frequency module is connect with described control unit.
The audio-frequency module includes signal gain circuit, bandwidth-limited circuit, loudspeaker, microphone, noise reduction unit, described
Signal gain circuit is connect with described control unit, microphone, loudspeaker and bandwidth-limited circuit respectively, the bandpass filtering electricity
The other end on road is connect with the loudspeaker, and the microphone is connect with noise reduction unit.
The signal gain circuit includes diode D1, diode D2, capacitor C1, variable resistance R1, resistance R2, resistance
R3, resistance R4, resistance R5, resistance R6, operational amplifier P described in operational amplifier P, the mono- end Jie of resistance R3 cathode,
The other end is connect with the anode and resistance R4 of the capacitor C1 respectively, and the one end the resistance R5 connect with the cathode of capacitor C1, is another
One end ground connection, the anode of the capacitor C1 connect in described control unit, and the anode of the diode D2 connects in the resistance R4
Upper, cathode connects on the resistance R6, on another anode for terminating at the loudspeaker of the resistance R6, the variable resistance
Positive, another anode for terminating at the diode D1 of capacitor described in mono- end Jie of R1, the anode of the diode D1 connect
On the microphone, cathode, the other end of one end of the resistance R2 and the diode D1 are grounded, the operational amplifier P
Plus earth, the output end of the operational amplifier P connect with the input terminal of the audio bandwidth-limited circuit.
The bandwidth-limited circuit includes capacitor C2, resistance R10, metal-oxide-semiconductor QVT, capacitor C3, diode D3, resistance R7, electricity
Hold C4, triode VT1, resistance R11, variable resistance R9, triode VT2, resistance R8, diode D4, resistance R12, the capacitor
The anode of C2 connects the output end in the operational amplifier P, the cathode of the capacitor C2 respectively with resistance R7, resistance R10 and institute
State capacitor C4 anode connection, another grid for terminating at metal-oxide-semiconductor QVT of the resistance R10, the drain electrode of the metal-oxide-semiconductor QVT with
The anode connection of capacitor C3, the one end the diode D3 connect with the source electrode of the metal-oxide-semiconductor QVT, another terminates at the capacitor
The cathode of C3, the base stage of the triode VT1 are connect with the source electrode of the metal-oxide-semiconductor QVT, and the collector of the triode VT1 connects
Ground, one end of the resistance R11 is connect with the emitter of the triode VT1, the other end is connect with the cathode of the capacitor C3,
The emitter of the triode VT2 is connect with the resistance R7, the base earth of the triode VT2, the triode VT2's
Collector is connect with the resistance R8, the one end the variable resistance R9 connect with the cathode of the capacitor C4, the other end respectively with
The resistance R8 is connected with the anode of diode D4, and one end of the resistance R12 connect with the cathode of the diode D4, is another
End is connect with the cathode of the capacitor C3, and the cathode of the capacitor C3 and the cathode of loudspeaker connect.
The working principle of the invention:
Acoustic sensor is used to acquire the variation of volume under varying environment, and transmits a signal to processing unit, and control is single
Member control audio-frequency module, after audio signal passes through signal gain circuit, the volume of signal changes with varying environment sound, warp
After crossing bandwidth-limited circuit, the external interference that audio signal is subject to is reduced, and is played back finally by loudspeaker.
By above-mentioned design, external environment, function list cannot be judged to the present invention by efficiently solving current intelligent earphone
One, and using battery power, not environmentally the problems such as, by signal gain circuit, make the volume of earphone with varying environment sound
And change；By bandwidth-limited circuit, influence of the external electromagnetic to headphones sound is reduced, improves audition effect；Using outside
Equipment charges, and environmental protection has promotional value.
Above-described embodiment is only one of the preferred embodiment of the present invention, should not be taken to limit protection model of the invention
It encloses, as long as that in body design thought of the invention and mentally makes has no the change of essential meaning or polishing, is solved
The technical issues of it is still consistent with the present invention, should all be included within protection scope of the present invention.
Claims (4)
1. a kind of intelligent earphone, which is characterized in that including acoustic sensor, master control clamp dog, power supply and audio-frequency module, the master control
Clamp dog includes storage unit, processing unit and control unit, and the processing unit is connect with storage unit, control unit respectively,
The acoustic sensor is connect with the processing unit, and the power supply is connect with control unit, the audio-frequency module and the control
Unit connection processed.
2. a kind of intelligent earphone according to claim 1, which is characterized in that the audio-frequency module includes signal gain electricity
Road, bandwidth-limited circuit, loudspeaker, microphone, noise reduction unit, the signal gain circuit respectively with described control unit, wheat
Gram wind, loudspeaker are connected with bandwidth-limited circuit, and the other end of the bandwidth-limited circuit is connect with the loudspeaker, the wheat
Gram wind is connect with noise reduction unit.
3. a kind of intelligent earphone according to claim 2, which is characterized in that the signal gain circuit includes diode
D1, diode D2, capacitor C1, variable resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, operational amplifier P,
The cathode of operational amplifier P described in the mono- end Jie of resistance R3, the other end respectively with the anode and resistance R4 of the capacitor C1
Connection, the one end the resistance R5 is connect with the cathode of capacitor C1, the other end is grounded, and the anode of the capacitor C1 connects in the control
On unit, the anode of the diode D2 is connect on the resistance R4, cathode connects on the resistance R6, and the resistance R6's is another
On the anode of loudspeaker described in one end Jie, the positive, another of capacitor described in the mono- end Jie of variable resistance R1 terminates at institute
The anode of diode D1 is stated, the anode of the diode D1 connects on the microphone, one end of the resistance R2 and described two
The cathode of pole pipe D1, other end ground connection, the plus earth of the operational amplifier P, the output end of the operational amplifier P and institute
State the input terminal connection of audio bandwidth-limited circuit.
4. a kind of intelligent earphone according to claim 3, which is characterized in that the bandwidth-limited circuit include capacitor C2,
Resistance R10, metal-oxide-semiconductor QVT, capacitor C3, diode D3, resistance R7, capacitor C4, triode VT1, resistance R11, variable resistance R9,
Triode VT2, resistance R8, diode D4, resistance R12, the anode of the capacitor C2 connect the output in the operational amplifier P
End, the cathode of the capacitor C2 are connect with the anode of resistance R7, resistance R10 and the capacitor C4 respectively, and the resistance R10's is another
The grid of one end Jie metal-oxide-semiconductor QVT, the drain electrode of the metal-oxide-semiconductor QVT are connect with the anode of capacitor C3, the one end the diode D3
Connect with the source electrode of the metal-oxide-semiconductor QVT, another cathode for terminating at the capacitor C3, the base stage of the triode VT1 with it is described
The source electrode of metal-oxide-semiconductor QVT connects, the grounded collector of the triode VT1, one end of the resistance R11 and the triode VT1
Emitter connection, the other end connect with the cathode of the capacitor C3, the emitter of the triode VT2 and the resistance R7 company
It connects, the base earth of the triode VT2, the collector of the triode VT2 is connect with the resistance R8, the variable resistance
The one end R9 is connect with the cathode of the capacitor C4, the other end is connect with the anode of the resistance R8 and diode D4 respectively, described
One end of resistance R12 is connect with the cathode of the diode D4, the other end is connect with the cathode of the capacitor C3, the capacitor C3
Cathode and loudspeaker cathode connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810845685.8A CN109089185A (en) | 2018-07-27 | 2018-07-27 | A kind of intelligent earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810845685.8A CN109089185A (en) | 2018-07-27 | 2018-07-27 | A kind of intelligent earphone |
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| Publication Number | Publication Date |
|---|---|
| CN109089185A true CN109089185A (en) | 2018-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810845685.8A Pending CN109089185A (en) | 2018-07-27 | 2018-07-27 | A kind of intelligent earphone |
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| CN (1) | CN109089185A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110533966A (en) * | 2019-10-14 | 2019-12-03 | 郑州铁路职业技术学院 | A kind of Foreigh-language oral-speech correction system |
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|---|---|---|---|---|
| US20050249355A1 (en) * | 2002-09-02 | 2005-11-10 | Te-Lun Chen | [feedback active noise controlling circuit and headphone] |
| CN203407000U (en) * | 2013-08-19 | 2014-01-22 | 深圳Tcl新技术有限公司 | Voice output adjustment circuit and audio and video playing equipment |
| CN203537555U (en) * | 2013-09-27 | 2014-04-09 | Tcl通力电子（惠州）有限公司 | Audio device |
| CN104918185A (en) * | 2015-05-11 | 2015-09-16 | 成都冠深科技有限公司 | Intelligent headset based on bootstrap amplifier circuit |
| CN105898646A (en) * | 2016-06-23 | 2016-08-24 | 佛山市联智新创科技有限公司 | Multifunctional intelligent earphone |
-
2018
- 2018-07-27 CN CN201810845685.8A patent/CN109089185A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050249355A1 (en) * | 2002-09-02 | 2005-11-10 | Te-Lun Chen | [feedback active noise controlling circuit and headphone] |
| CN203407000U (en) * | 2013-08-19 | 2014-01-22 | 深圳Tcl新技术有限公司 | Voice output adjustment circuit and audio and video playing equipment |
| CN203537555U (en) * | 2013-09-27 | 2014-04-09 | Tcl通力电子（惠州）有限公司 | Audio device |
| CN104918185A (en) * | 2015-05-11 | 2015-09-16 | 成都冠深科技有限公司 | Intelligent headset based on bootstrap amplifier circuit |
| CN105898646A (en) * | 2016-06-23 | 2016-08-24 | 佛山市联智新创科技有限公司 | Multifunctional intelligent earphone |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110533966A (en) * | 2019-10-14 | 2019-12-03 | 郑州铁路职业技术学院 | A kind of Foreigh-language oral-speech correction system |
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