CN107343234A - Intelligent earphone - Google Patents
Intelligent earphone Download PDFInfo
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- CN107343234A CN107343234A CN201610286574.9A CN201610286574A CN107343234A CN 107343234 A CN107343234 A CN 107343234A CN 201610286574 A CN201610286574 A CN 201610286574A CN 107343234 A CN107343234 A CN 107343234A
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- Prior art keywords
- electrically connected
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- ios
- resistance
- intelligent earphone
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Classifications
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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
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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
- H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
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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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/007—Protection circuits for transducers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Headphones And Earphones (AREA)
Abstract
The invention discloses a kind of intelligent earphone, wherein, include depletion type disconnecting switch and at least two volume control loops, depletion type disconnecting switch is electrically connected at least two volume control loops, at least two volume control loops correspond to different intelligent earphone volume control modes, and depletion type disconnecting switch after receiving the high level that one of at least two volume control loops export according to whether select to switch to the volume control loop of output high level.
Description
Technical field
The present invention relates to a kind of intelligent earphone, and more particularly to one kind, which can be realized, automatically selects switching volume control
The intelligent earphone in loop.
Background technology
With music and the prevalence of video playback apparatus, the entertainment life of people is enriched.Current existing sound
Happy and video playback apparatus is based primarily upon ios systems and Android system, thus, it is possible to suitable for ios systems and
The intelligent earphone of Android system also rises therewith.
Patent CN204616061U discloses a kind of Intelligent mobile equipment earphone control device, is arranged at an intelligence
In energy earphone.Fig. 1 is refer to, Fig. 1 is that the circuit of prior art Intelligent mobile equipment earphone control device shows
It is intended to, the device can be by switching double-point double-throw switch S Intelligent mobile equipment earphones control device
Switched between ios volumes control loop and Android volume control loop, although ios systems can be applied to
And Android system, but when using Android volume control loop, due to the MIC of ios earphone chip internals
End, REM ends and earth terminal GND are in connection status, moreover, finding connection intelligence in testing
Supply voltage after control device to most of Android device causes the intelligence of earphone typically in 0.7V~0.8V
The operational failure of control device and Android device, in addition after earphone switches to ios control models, certain
Under high temperature, cause the reverse leakage of diode to cause self-test under ios patterns to fail, cause using ios sounds
Cause effectively disconnect Android volume control loop when measuring control loop.
Patent CN103079138B also discloses a kind of earphone, then refer to Fig. 2, and Fig. 2 is prior art
The circuit diagram of earphone, the earphone include：Votage control switch S, switch key group, microphone Mic and two
Head circuit more than individual, wherein different head circuits corresponds to different intelligent mobile phone operating system；It is voltage-controlled to open
Pass is arranged between switch key group and microphone and head circuit more than two；Votage control switch is according to earphone
The voltage identification for connecing microphone end described in the operating system of smart mobile phone that is currently inserted into of earphone, control itself
Switching switch be switched to corresponding to one group of head circuit, to realize that switch key group and microphone are corresponding with this
One group of head circuit connection.The corresponding voltage of the first operation system of smart phone is also disclosed simultaneously
Scope is+1.5V~+1.9V, the corresponding voltage range of second of operation system of smart phone for+2.0V~
+ 2.5V, the corresponding voltage range of the third operation system of smart phone is+2.6V~+3.5V.It is this logical
Although crossing identification microphone both end voltage and control its own switch can realize to switch the mode of head circuit
The switching of head circuit after needing precisely identification microphone both end voltage still due to coordinating votage control switch progress
Switching causes if there is the problems such as spread of voltage or engagement process existence time gap earphone can be caused short
Time function failure effect uses, and votage control switch can not thoroughly disconnect it when using a kind of head circuit
He understands road, it is also possible to causes ear-phone function to fail.
Therefore it is badly in need of developing a kind of intelligent earphone that can overcome drawbacks described above.
The content of the invention
The technical problems to be solved by the invention be just to provide a kind of intelligent earphone comprising：Depletion type
Disconnecting switch and at least two volume control loops, the depletion type disconnecting switch be electrically connected at it is described at least
Two kinds of volume control loops, at least two volumes control loop correspond to different intelligent earphone volume control
Pattern, the depletion type disconnecting switch is according to whether to receive one of at least two volumes control loop defeated
Selection switches to the volume control loop for exporting the high level after the high level gone out.
Above-mentioned intelligent earphone, wherein, also comprising single-pole double-throw switch (SPDT), be electrically connected at the depletion type every
Leave pass and at least two volumes control loop, the second end of the single-pole double-throw switch (SPDT) are also electrically connected with
In the MIC+ ends of the intelligent earphone, user is according to depletion type disconnecting switch selection switching
Volume control loop is worked by controlling the single-pole double-throw switch (SPDT) to start the volume control loop.
Above-mentioned intelligent earphone, wherein, at least two volumes control loop is ios volume control modes
Ios volumes control loop and Android volume control mode Android volume control loop.
Above-mentioned intelligent earphone, wherein, the ios volumes control loop include first resistor, second resistance,
3rd resistor, ios control chips, the first field effect transistor switch pipe, the first level setting switches and the second volume
Adjusting switch, the 3rd end of the single-pole double-throw switch (SPDT) are electrically connected at the ios by the first resistor
Control chip, the ios control chips are electrically connected at first field-effect by the second resistance and opened
The drain electrode of pipe is closed, the grid of the first field effect transistor switch pipe is electrically connected at the ios control chips, institute
The source electrode for stating the first field effect transistor switch pipe is electrically connected at one end of first level setting switches, and described
The source electrode of one field effect transistor switch pipe is also electrically connected at second volume adjusting by the 3rd resistor and opened
The other end ground connection of one end of pass, first level setting switches and second level setting switches.
Above-mentioned intelligent earphone, wherein, the Android volume control loop include the 4th resistance, the 5th resistance,
First level setting switches and second level setting switches, the first end of the single-pole double-throw switch (SPDT)
Two inputs of the depletion type disconnecting switch are electrically connected at, two of the depletion type disconnecting switch are defeated
Go out one end that one of end is electrically connected at second level setting switches by the 4th resistance, institute
Two output ends for stating depletion type disconnecting switch wherein another are electrically connected at institute by the 5th resistance
State one end of the first level setting switches, the VCC ends of the depletion type disconnecting switch are electrically connected at described
The MICPWR ends of ios control chips.
Above-mentioned intelligent earphone, wherein, also comprising microphone chip and key is connect/hangs up, the microphone
Chip is electrically connected at the MIC+ ends, described to connect/hang up key one end and be electrically connected at the MIC+
On the connecting path of end and the microphone chip, the other end ground connection for connecing/hanging up key.
Above-mentioned intelligent earphone, wherein, also it is electrically connected at institute comprising the second field effect transistor switch pipe, its grid
Ios control chips are stated, the ios control chips are also electrically connected at two field-effect by the 7th resistance
The source electrode of switching tube, the drain electrode of the second field effect transistor switch pipe are electrically connected at the microphone chip.
Above-mentioned intelligent earphone, wherein, also pass through one the 8th electricity comprising the 3rd field effect transistor switch pipe, its grid
Resistance is electrically connected at the first end of the single-pole double-throw switch (SPDT), and the source electrode of the 3rd field effect transistor switch pipe connects
Ground, the drain electrode of the 3rd field effect transistor switch pipe are electrically connected at the microphone chip.
Above-mentioned intelligent earphone, wherein, also it is electrically connected at comprising the first Transient Voltage Suppressor, its one end
On the connecting path of 5th resistance and first level setting switches, first transient voltage suppresses
The other end ground connection of device.
Above-mentioned intelligent earphone, wherein, also it is electrically connected at comprising the second Transient Voltage Suppressor, its one end
On the connecting path of 4th resistance and second level setting switches, second transient voltage suppresses
The other end ground connection of device.
In summary, the present invention is relative to prior art its advantage,
1st, turned on using depletion type disconnecting switch in the case of unpowered voltage, there is power supply (to reach 1.5V
More than) when present isolation characteristic, when ios chips MICPWR ends export high level, exhaust
Type disconnecting switch selection switching ios volumes control loop and the loop disconnection for being connected other.Now will be single
Double-pole double throw switch pushes the 3rd end, you can allows whole circuit work well
2nd, when MICPWR ends do not export high level, the conducting of depletion type disconnecting switch, selection Android volume control
Loop processed.Single-pole double-throw switch (SPDT) is now pushed into first end, you can allow whole circuit work well.
Android can effectively be disconnected when switching to ios volume control modes by this intelligent earphone control device
Volume control loop, ios volume control loops can be effectively disconnected when switching to Android volume control mode,
Interfering between the two kinds of volume control loops avoided with this.
The present invention will be further described with reference to the accompanying drawings and examples.
Brief description of the drawings
Fig. 1 is the circuit diagram of prior art Intelligent mobile equipment earphone control device；
Fig. 2 is the circuit diagram of prior art earphone；
Fig. 3 is intelligent earphone circuit diagram of the present invention.
Embodiment
Technical solution of the present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings, more to enter one
Step understands the purpose of the present invention, scheme and effect, but is not limited to the present invention.
Fig. 3 is refer to, Fig. 3 is intelligent earphone circuit diagram of the present invention.In the present embodiment, it is of the invention
Intelligent earphone includes, depletion type disconnecting switch SW1 and at least two volume control loops, depletion type isolation
Switch SW1 is electrically connected at least two volume control loops, and at least two volume control loops are corresponding not
Same intelligent earphone volume control mode, depletion type disconnecting switch SW1 is according to whether receive at least two
Selection switches to the volume control loop of output high level after the high level of one of volume control loop output.Its
In at least two volume control loops be ios volume control modes ios volumes control loop and Android volume
The Android volume control loop of control model, but the present invention is not limited thereto, and may be used also in other embodiments
For the WindowsPhone volume control loops of WindowsPhone volume control modes.
Further, intelligent earphone also includes：
Single-pole double-throw switch (SPDT) SW2, single-pole double-throw switch (SPDT) SW2 first end 1 be electrically connected at depletion type every
The MIC+ ends for closing two inputs INA, INB and intelligent earphone are left, user isolates according to depletion type
The volume control loop of SW1 selection switchings is switched by controlling single-pole double-throw switch (SPDT) SW2 to start the volume control
Loop works processed
Ios volumes control loop includes first resistor R1, second resistance R2, the control of 3rd resistor R3, ios
Chip U1, the first field effect transistor switch pipe Q1, the first level setting switches S1 and the second level setting switches
S2, single-pole double-throw switch (SPDT) SW2 the 3rd end 3 are electrically connected at ios control chips by first resistor R1
U1 MIC ends, ios control chips U1 REM ends are electrically connected at first by second resistance R2
Field effect transistor switch pipe Q1 drain D, the first field effect transistor switch pipe Q1 grid G are electrically connected at ios
Control chip U1 MICPWR ends, the first field effect transistor switch pipe Q1 source S are electrically connected at first
Level setting switches S1 one end, the first field effect transistor switch pipe Q1 source S also pass through 3rd resistor R3
It is electrically connected at the second level setting switches S2 one end, the first level setting switches S1 and second sound
Volume adjustment switch S2 other end ground connection；
Android volume control loop includes the 4th resistance R4, the 5th resistance R5, the first level setting switches
S1 and the second level setting switches S2, single-pole double-throw switch (SPDT) SW2 first end 1 are electrically connected at depletion type
Disconnecting switch SW1 two inputs INA, INB, corresponding input INA depletion type disconnecting switch
SW1 output end OUTA is electrically connected at the one of the second level setting switches S2 by the 4th resistance R4
End, corresponding input INB depletion type disconnecting switch SW1 output end OUTB pass through the 5th resistance
R5 is electrically connected at the first level setting switches S1 one end, depletion type disconnecting switch SW1 VCC ends
Ios control chips U1 MICPWR ends, the first electric capacity C1 are electrically connected at by the 6th resistance R6
One end be electrically connected on the connecting path between the 6th resistance R6 and VCC ends, the first electric capacity C1's is another
One end is grounded.
Yet further, intelligent earphone also presses down comprising the first Transient Voltage Suppressor D1, the second transient voltage
Device D2 and the 3rd Transient Voltage Suppressor D3 processed；First Transient Voltage Suppressor D1 one end is electrically connected with
On the 5th resistance R5 and the first level setting switches S1 connecting path, the first Transient Voltage Suppressor
D1 other end ground connection；Second Transient Voltage Suppressor D2 one end be electrically connected at the 4th resistance R4 with
On second level setting switches S2 connecting path, the second Transient Voltage Suppressor D2 other end ground connection；
3rd Transient Voltage Suppressor D3 one end is electrically connected at the of MIC+ terminal single-pole double-throw switch (SPDT)s SW2
Two ends 2, the 3rd Transient Voltage Suppressor D3 other end ground connection；3rd electric capacity C3 one end electrically connects
It is connected on the connecting path at the 3rd Transient Voltage Suppressor D3 and single-pole double-throw switch (SPDT) SW2 the second end 2,
3rd electric capacity C3 other end ground connection.Three Transient Voltage Suppressors wherein are set in circuit in the present invention
Each serve as the effect of electrostatic protection, but the present invention is not to be limited.
Further, intelligent earphone also includes microphone chip U2, connects/hang up key S3, second effect
Inductive switch pipe Q2 and the 3rd field effect transistor switch pipe Q3；Microphone chip U2 containing a power end POWER and
One output end OUT, power end POWER are electrically connected at MIC+ ends and single-pole double-throw switch (SPDT) SW2's
Second end 2；The one end for meeting/hanging up key S3 is electrically connected at single-pole double-throw switch (SPDT) SW2 the second end 2
The other end with power end POWER connecting path, meeting/hanging up key S3 is grounded；Second field-effect
Switching tube Q2 grid G is electrically connected at ios control chips U1 MICPWR ends, MICPWR
End is grounded after being also electrically connected at the second field effect transistor switch pipe Q2 source S by the 7th resistance R7, wheat
Gram wind U2 also includes two GND ends, and the second field effect transistor switch pipe Q2 drain D is electrically connected at two
Individual GND ends；3rd field effect transistor switch pipe Q3 grid G is electrically connected at list by the 8th resistance R8
Double-pole double throw switch SW2 first end 1, the 3rd field effect transistor switch pipe Q3 source S ground connection, the 3rd effect
Inductive switch pipe Q3 drain D is electrically connected at two GND ends, the 8th resistance R8 and the 3rd field-effect
The 9th resistance R9 one end, the 9th resistance R9 are also connected with the connecting path of switching tube Q3 grid G
The other end ground connection；Microphone chip U2 output end OUT is electrically connected at by the tenth resistance R10
Second field effect transistor switch pipe Q2 and the 3rd field effect transistor switch pipe Q3 drain D；The two of tenth resistance R10
Also it is parallel with the second electric capacity C2 and the 11st resistance R11 being sequentially connected in series.
With reference to Fig. 3, intelligent earphone specific work process of the present invention is described in detail.
First self-test stage：After ios control chips pass through single-pole double-throw switch (SPDT) SW2 by electricity on the second, three end
That is ios volume control modes, it is the second resistance R2 for checking REM ends into the self-test first stage, is entering
Ios control chips U1 MICPWR ends output is low level when entering for the first self-test stage, and REM is exported
For high level, MICPWR ends are depletion type disconnecting switch SW1 feeder ear, depletion type disconnecting switch SW1
Two inputs INA, INB and corresponding two inputs INA, INB two output end OUTA,
OUTB is turned on, simultaneously because the 2nd resistance R2 connects with the first FET Q1, due to first effect
Should pipe Q1 terminate in that high resistant is presented in drain D and pin, the impedance detection at the REM ends of ios control chips is led to
Cross；
When the output of MICPWR ends is high level, the output of REM ends is low level, and MICPWR ends are
Depletion type disconnecting switch SW1 feeder ear, depletion type disconnecting switch SW1 two inputs INA, INB
And corresponding two inputs INA, INB two output ends OUTA, OUTB disconnect, i.e., depletion type every
Leave pass SW1 selections and switch to ios volume control loops.First FET Q1 conductings simultaneously, second
Resistance R2 by the first FET Q1 drain D and source S respectively with 3rd resistor R3 and first
Level setting switches S1, the second level setting switches S2 are electrically connected with, i.e., user can pass through the first sound
Volume adjustment switch S1, the second level setting switches S2 accordingly increase or reduced volume, at the same by connect/
The key S3 that hangs up answers or hung up the telephone；
Single-pole double-throw switch (SPDT) SW2 works as MICPWR by being Android volume control mode after electricity on the first, two end
When be low level, i.e. depletion type disconnecting switch SW1 can't detect high level and input for end output, depletion type every
Leave two inputs INA, INB closing SW1 and corresponding two inputs INA, INB two are defeated
Go out to hold OUTA, OUTB to turn on, i.e. depletion type disconnecting switch SW1 selections switch to the control of Android volume
Loop, single-pole double-throw switch (SPDT) SW2 first end 1 pass through depletion type disconnecting switch SW1, the 4th resistance
R4, the 5th resistance R5 are electrically connected at the first level setting switches S1, the second level setting switches S2,
I.e. user can be accordingly increased by the first level setting switches S1, the second level setting switches S2 or
Volume is reduced, while answers or hangs up the telephone by the key S3 that connects/hang up.Significantly, since set
The first field effect transistor switch pipe Q1 is put, can be thorough when depletion type disconnecting switch SW1 does not receive high level
Android volume control loop and ios control chips U1 connection are disconnected, ensures effectively to disconnect with this
Ios volume control loops, interfering between the two kinds of volume control loops avoided.
Table 1 is referred to, table 1 is the truth table of intelligent earphone work：
Table 1
As shown in a, b row of table 1, intelligent earphone access Android mobile phone, as depletion type disconnecting switch SW1
When not receiving high level, selection switches to Android volume control loop；Now when single-pole double throw opens SW2
Pass is when being in Android volume control mode, the first level setting switches S1, the second level setting switches S2 and
Meeting/hang up key S3 can work；Now connect when single-pole double-throw switch (SPDT) is in ios volume control modes/
The key S3 that hangs up can work, but the first level setting switches S1, the second level setting switches S2 not work
Make, i.e., user is merely able to put forward music or connect/hang up that volume can not be adjusted, if user needs to adjust
Volume, only need to stir single-pole double throw opens SW2 to Android volume control mode.
As shown in c, d row of table 1, intelligent earphone access iPhone, as depletion type disconnecting switch SW1
When receiving high level, selection switches to ios volume control loops；Now SW2 is opened when single-pole double throw to close
During in ios volume control modes, the first level setting switches S1, the second level setting switches S2 and connect/
The key S3 that hangs up can work；Now connect when single-pole double-throw switch (SPDT) is in Android volume control mode/hang electricity
Words key S3 can work, but the first level setting switches S1, the second level setting switches S2 do not work,
I.e. user is merely able to put forward music or connect/hang up that volume can not be adjusted, if user needs to adjust volume,
Only single-pole double throw, which need to be stirred, opens SW2 to ios volume control modes.
Certainly, the present invention can also have other various embodiments, in the feelings without departing substantially from spirit of the invention and its essence
Under condition, those skilled in the art work as can make various corresponding changes and deformation according to the present invention, but
These corresponding changes and deformation should all belong to the protection domain of appended claims of the invention.
Claims (10)
1. a kind of intelligent earphone, it is characterised in that include：Depletion type disconnecting switch and at least two volume controls
Loop processed, the depletion type disconnecting switch are electrically connected at least two volumes control loop, it is described extremely
Few two kinds of volume control loops correspond to different intelligent earphone volume control modes, the depletion type disconnecting switch
According to whether select to switch to after receiving the high level that one of described at least two volumes control loop exports
Export the volume control loop of the high level.
2. intelligent earphone as claimed in claim 1, it is characterised in that also comprising single-pole double-throw switch (SPDT),
It is electrically connected at the depletion type disconnecting switch and at least two volumes control loop, the single-pole double throw
Second end of switch is also electrically connected at the MIC+ ends of the intelligent earphone, and user is according to the depletion type
The volume control loop of disconnecting switch selection switching is by controlling described in the single-pole double-throw switch (SPDT) startup
Volume control loop works.
3. intelligent earphone as claimed in claim 2, it is characterised in that at least two volume controls back
Road is the ios volumes control loop of ios volume control modes and the Android volume control of Android volume control mode
Loop processed.
4. intelligent earphone as claimed in claim 3, it is characterised in that the ios volumes control loop bag
Containing first resistor, second resistance, 3rd resistor, ios control chips, the first field effect transistor switch pipe, first
Level setting switches and the second level setting switches, the 3rd end of the single-pole double-throw switch (SPDT) pass through described first
Resistance is electrically connected at the ios control chips, and the ios control chips are electrical by the second resistance
The drain electrode of the first field effect transistor switch pipe is connected to, the grid of the first field effect transistor switch pipe is electrically connected with
In the ios control chips, the source electrode of the first field effect transistor switch pipe is electrically connected at first volume
One end of adjusting switch, the source electrode of the first field effect transistor switch pipe are also electrically connected with by the 3rd resistor
In one end of second level setting switches, first level setting switches and second volume adjusting
The other end ground connection of switch.
5. intelligent earphone as claimed in claim 4, it is characterised in that the Android volume control loop bag
Containing the 4th resistance, the 5th resistance, first level setting switches and second level setting switches, institute
The first end for stating single-pole double-throw switch (SPDT) is electrically connected at two inputs of the depletion type disconnecting switch, described
One of two output ends of depletion type disconnecting switch are electrically connected at described by the 4th resistance
One end of two level setting switches, two output ends of the depletion type disconnecting switch are wherein another to pass through institute
One end that the 5th resistance is electrically connected at first level setting switches is stated, the depletion type disconnecting switch
VCC ends are electrically connected at the MICPWR ends of the ios control chips.
6. the intelligent earphone as described in claim 2-5, it is characterised in that also comprising microphone chip and connect/
Hang up key, the microphone chip is electrically connected at the MIC+ ends, described to connect/hang up key one end
It is electrically connected on the connecting path of the MIC+ ends and the microphone chip, it is described to connect/hang up key
The other end ground connection.
7. intelligent earphone as claimed in claim 6, it is characterised in that also comprising the second field effect transistor switch pipe,
Its grid is electrically connected at the ios control chips, and the ios control chips are also electrical by the 7th resistance
The source electrode of the two field effect transistor switches pipe is connected to, the drain electrode of the second field effect transistor switch pipe is electrically connected at
The microphone chip.
8. intelligent earphone as claimed in claim 7, it is characterised in that also comprising the 3rd field effect transistor switch pipe,
Its grid is electrically connected at the first end of the single-pole double-throw switch (SPDT), the 3rd effect by one the 8th resistance
The source ground of inductive switch pipe, the drain electrode of the 3rd field effect transistor switch pipe are electrically connected at the microphone core
Piece.
9. the intelligent earphone as described in claim 5 or 8, it is characterised in that also comprising the first transient voltage
Suppressor, its one end are electrically connected at the connecting path of the 5th resistance and first level setting switches
On, the other end ground connection of first Transient Voltage Suppressor.
10. intelligent earphone as claimed in claim 9, it is characterised in that also press down comprising the second transient voltage
Device processed, its one end are electrically connected at the connecting path of the 4th resistance and second level setting switches
On, the other end ground connection of second Transient Voltage Suppressor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610286574.9A CN107343234B (en) | 2016-05-03 | 2016-05-03 | Intelligent earphone |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610286574.9A CN107343234B (en) | 2016-05-03 | 2016-05-03 | Intelligent earphone |
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| Publication Number | Publication Date |
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| CN107343234A true CN107343234A (en) | 2017-11-10 |
| CN107343234B CN107343234B (en) | 2023-04-21 |
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| CN201610286574.9A Active CN107343234B (en) | 2016-05-03 | 2016-05-03 | Intelligent earphone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108495222A (en) * | 2018-03-14 | 2018-09-04 | 佳禾智能科技股份有限公司 | Double compatible line control earphone control circuits and the control method realized based on the circuit |
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| US20140254809A1 (en) * | 2013-03-06 | 2014-09-11 | Texas Instruments Incorporated | Audio Accessory Circuitry and Method Compatible With Both MSFT Mode and Digital Communication Mode |
| US20150098598A1 (en) * | 2013-10-09 | 2015-04-09 | Voyetra Turtle Beach, Inc. | Method and system for headset with automatic source detection and volume control |
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| CN107343234B (en) | 2023-04-21 |
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