CN107040836A - A kind of headset transfer device - Google Patents

A kind of headset transfer device Download PDF

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Publication number
CN107040836A
CN107040836A CN201710236935.3A CN201710236935A CN107040836A CN 107040836 A CN107040836 A CN 107040836A CN 201710236935 A CN201710236935 A CN 201710236935A CN 107040836 A CN107040836 A CN 107040836A
Authority
CN
China
Prior art keywords
earphone
pin
couples
connection end
transfer device
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.)
Granted
Application number
CN201710236935.3A
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Chinese (zh)
Other versions
CN107040836B (en
Inventor
余志聪
贾宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huizhou TCL Yunchuang Technology Co.,Ltd.
Original Assignee
JRD Communication Shenzhen Ltd
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Priority to CN201710236935.3A priority Critical patent/CN107040836B/en
Publication of CN107040836A publication Critical patent/CN107040836A/en
Application granted granted Critical
Publication of CN107040836B publication Critical patent/CN107040836B/en
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/10Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041Mechanical or electronic switches, or control elements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/10Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups

Abstract

The invention discloses a kind of headset transfer device, the headset transfer device includes:First connection end, couples the first pin of earphone, and the first pin of earphone is used to transmit charging signals to earphone, and the function signal that test earphone is produced;Second connection end, couples the first pin of mobile terminal;Control circuit, coupling the first connection end and the second connection end, for when earphone is charged by the first pin, perform below at least one:Prevent the charging signals on the first pin of earphone from transmitting to the second connection end, and the first function signal on the first pin of earphone is exported to the first pin of mobile terminal by the second connection end;According to the situation of change of the charging signals on the first pin of earphone, the second function signal is generated, and export to the first pin of mobile terminal by the second connection end.By the above-mentioned means, the present invention can not influence two functions of its MIC and control while earphone charges.

Description

A kind of headset transfer device
Technical field
The present invention relates to Mobile terminal accessory technical field, more particularly to a kind of headset transfer device.
Background technology
In existing noise cancelling headphone, typically there is In-Ear and two kinds of wear-type, former is portable due to being directed to Field, so noise reduction module is integrally less than normal, battery capacity very little, endurance is typically poor;The latter's battery capacity is bigger, continuation of the journey Ability is more preferable, but volume is larger, poor in terms of portability.
For the former user, it is the problem of maximum, during the use of earphone, dead battery suddenly, no Charged, continued by influence of noise music, increase sound then can damage hearing again, it has to give earphone charging, and reduction is used The experience at family.
The content of the invention
The present invention solves the technical problem of providing a kind of headset transfer device, can while earphone charges, Two functions of its MIC and control are not influenceed.
In order to solve the above technical problems, one aspect of the present invention is:A kind of headset transfer device is provided, should Headset transfer device includes:First connection end, couples the first pin of earphone, and the first pin of earphone is used to pass charging signals Transport to earphone, and the function signal that test earphone is produced;Second connection end, couples the first pin of mobile terminal;Control electricity Road, the first connection end of coupling and the second connection end, for when earphone is charged by the first pin, performing following at least one It is individual:The charging signals on the first pin of earphone are prevented to transmit to the second connection end, and by first on the first pin of earphone Function signal is exported to the first pin of mobile terminal by the second connection end;According to the charging signals on the first pin of earphone Situation of change, generate the second function signal, and exported by the second connection end to the first pin of mobile terminal.
The beneficial effects of the invention are as follows:The situation of prior art is different from, the headset transfer device that the present invention is provided includes: First connection end, couples the first pin of earphone, and the first pin of earphone is used to transmit charging signals to earphone, and detection The function signal that earphone is produced;Second connection end, couples the first pin of mobile terminal;Circuit is controlled, the first connection end is coupled With the second connection end, for when earphone is charged by the first pin, perform it is following at least one:Prevent the first of earphone Charging signals on pin are transmitted to the second connection end, and the first function signal on the first pin of earphone is connected by second End output is connect to the first pin of mobile terminal;According to the situation of change of the charging signals on the first pin of earphone, generation the Two function signals, and exported by the second connection end to the first pin of mobile terminal.By the above-mentioned means, the present invention can be While earphone charges, two functions of its MIC and control are not influenceed.
Brief description of the drawings
Fig. 1 is the structural representation for the embodiment of headset transfer device one that the present invention is provided;
Fig. 2 is the structural representation of control circuit in the another embodiment of headset transfer device that the present invention is provided;
Fig. 3 is to control circuit connection diagram in the another embodiment of headset transfer device that provides of the present invention;
Fig. 4 is charge-discharge circuit connection diagram in the headset transfer device another embodiment that the present invention is provided.
Embodiment
The headset transfer device that embodiments of the invention are provided is used for the connection of mobile terminal and earphone, and the earphone can be Wear-type, plug-in type etc., the mobile terminal can be computer, flat board, mobile phone, onboard system and wearable device etc..
Refering to Fig. 1, Fig. 1 is the structural representation for the embodiment of headset transfer device one that the present invention is provided, earphone switching Device 10 includes:
First connection end 11, couples the first pin (not shown) of earphone 20, the first pin of earphone 20 is used for will charging Signal is transmitted to earphone, and the function signal that test earphone 20 is produced.
Optionally, the first pin of the earphone 20 be headset plug, especially, the headset plug can include L channel, R channel, four contact points of MIC and ground connection.
Second connection end 12, couples the first pin (not shown) of mobile terminal 30.
Optionally, the first pin of the mobile terminal 30 is the earphone jack of mobile terminal.
MIC pin (i.e. the first pin of earphone) function of earphone is a lot, not only needs to include MIC functions and control function, It is also to be charged by MIC pin when charging to earphone internal cell.To earphone internal cell charge voltage then with commonly The voltage of mobile phone charging is the same, is all DC5V, but MIC pin (i.e. the first pin of the mobile terminal) pull-up of mobile phone mostly Level also only has below 3V, so this charging voltage cannot directly tap into the MIC pin of mobile phone.
In the present embodiment, the headset transfer device also includes:
Circuit 13, the first connection end 11 of coupling and the second connection end 12 are controlled, for entering in earphone 20 by the first pin During row charging, perform it is following at least one:
1st, the charging signals on the first pin of earphone 20 are prevented to transmit to the second connection end 12, and by the first of earphone 20 The first function signal on pin is exported to the first pin of mobile terminal 30 by the second connection end 12.
2nd, according to the situation of change of the charging signals on the first pin of earphone 20, the second function signal is generated, and pass through Second connection end 12 is exported to the first pin of mobile terminal 30.
While the earphone is charged through the above way, two functions of its MIC and control are not influenceed.
Optionally, with reference to Fig. 1 and Fig. 2, in a specific embodiment, the first connection end 11 is ear, and 20 jacks are used for Coupled with the headset plug of earphone 20, including the first MIC ends, the first L channel end, the first R channel end and the first GND ends;The Two connection ends 12 are headset plug, for being coupled with the earphone jack of mobile terminal 30, including the 2nd MIC ends, the second L channel End, the second R channel end and the 2nd GND ends;Wherein, the first L channel end couples the second L channel end, the coupling of the first R channel end Second R channel end, the first GND ends couple the 2nd GND ends, and the first MIC ends couple the first pin of earphone, the coupling of the 2nd MIC ends First pin of mobile terminal;First function signal is the voice signal that detects of the first MIC ends, the second function signal be due to The charging signals at the first MIC ends change the control signal to be formed caused by key switch is connected.
Specifically, the first pin of earphone is the MIC ends of headset plug on earphone, and the first pin of mobile terminal is movement The MIC ends of earphone jack in terminal.
Optionally, as shown in Fig. 2 in the another embodiment of headset transfer device that provides of the present invention, the control circuit 13 Specifically include:
DC filtering circuit 131, for connecting the first connection end 11 and the second connection end 12, for preventing charging signals V1 Transmit to the second connection end 12, and the first function signal as AC signal is transmitted to the second connection end;Wherein, the function Signal is produced by earphone.
Decision circuitry 132, is connected to the first connection end 11, for charging signals V1 and setting signal V2 to be contrasted.
On-off circuit 133, wherein, the control end connection judgment circuit 132 of on-off circuit 133, the first of on-off circuit 133 Signal end is grounded, and the secondary signal end of on-off circuit connects the second connection end 11, and on-off circuit 133 is used for according to decision circuitry 132 comparing result is switched on or switched off.
As shown in figure 3, the present embodiment is described in detail with a specific circuit structure below.
The two ends that DC filtering circuit 131 includes the first electric capacity C1, the first electric capacity C1 connect the He of the first connection end 11 respectively Second connection end 12;It should be understood that the first connection end 11 couples the MIC ends of headset plug on earphone:Headset_MIC, the The MIC ends of earphone jack on two connection ends 12 coupling mobile terminal:Phone_MIC.
Decision circuitry 132 includes:
First resistor R1, its first end coupling setting charging voltage V1, its second end couples the first connection end 11;Wherein, First connection end 11 is connected with a key circuit, and key circuit includes key switch S, the second resistance R2 and first sequentially connected Ground terminal GND1.
The 3rd resistor R3 and the 4th resistance R4 of interconnection, wherein, 3rd resistor R3 first end coupling setting charging Voltage V1, the 4th resistance R4 first end connect the second ground terminal GND2;
Comparator B, its positive input couples 3rd resistor R3 and the 4th resistance R4 the second end, its negative input coupling Connect the first connection end 11.
On-off circuit 133 includes switching tube Q, switching tube Q control end coupling comparator B output end, its first end coupling The second connection end 12 is connect, its second end couples the second ground terminal GND2.
Wherein, first resistor R1 and second resistance R2 ratio is more than 3rd resistor R3 and the 4th resistance R4 ratio.
Wherein, key circuit is arranged on earphone 20 or headset transfer device 10.
The principle of the circuit is as follows:
When button S is not pressed, charging current flows into headset_MIC by R1 current-limiting resistances, now headset_MIC Pin voltage is about V1, and higher than the divider voltage constituted with R3/R4, comparator B output low levels, Q is in off-state, Phone_ MIC pin pull into high level on mobile terminal inside.
When button S is pressed, R1/R2 collectively constitutes a divider, separates the divider voltage of voltage ratio R3/R4 compositions It is low, so when comparator B output high level, Q conductings, Phone_MIC pin ground connection presses equivalent with button.
In above-mentioned whole process, the electric signal of headset_MIC pin can be capacitively coupled to Phone_MIC pin by C1 In, while having isolated from the past V1 voltages of headset_MIC pin.
Optionally, in a specific embodiment, V1 is 5V.
Refering to Fig. 4, in the headset transfer device another embodiment that the present invention is provided, the headset transfer device also includes filling Electrical interface and charge-discharge circuit.
Wherein, charging inlet can be general USB interface, be not required here.
Wherein, the charge-discharge circuit includes a charging chip, and charging chip includes:
VDD pins, couple the vdd terminal of charging inlet.
GND pin, couples the 3rd ground terminal GND3.
BAT pins, couple the positive pole (BAT+) of the battery of headset transfer device;
SW pins, couple the 3rd ground terminal GND3.
OUT_P pins, for exporting setting charging voltage V1.Optionally, the V1 voltages are used in above-described embodiment Control circuit to provide one and set voltage V1.
OUT_N pins, for coupling the 4th ground terminal GND4.
In addition, in other embodiments, charge-discharge circuit also includes:
5th resistance R5, its first end coupling VDD pins.
Second electric capacity C2, its first end couples the 5th resistance R5 the second end, and its second end couples the 3rd ground terminal GND3.
It should be understood that the RC charge-discharge circuits of the R5 and C2 compositions, produce spike electricity to chip during for preventing that USB from accessing Pressure.
In addition, in other embodiments, charge-discharge circuit also includes:
First inductance L1, its first end coupling SW pins, its second end coupling BAT pins.
3rd electric capacity C3, its first end coupling SW pins, its second end couples the 3rd ground terminal GND3.
4th electric capacity C4, its first end is used for the positive pole for coupling the battery of headset transfer device, and its second end is used to couple The negative pole of the battery of headset transfer device, the negative pole of the battery of headset transfer device couples the 3rd ground terminal GND3.
It should be understood that the L1 and C3 is filtered as output, reduce voltage x current ripple.
In addition, in other embodiments, charge-discharge circuit also includes:
5th electric capacity C5, its first end coupling OUT_P pins, its second end couples the 3rd ground terminal GND3.
It should be understood that the C5 is used to filter out output voltage ripple.
Optionally, in the above-described embodiments, C3, C4, C5 are polarization capacity, and its first end is positive pole, and the second end is negative pole.
By headset transfer device disclosed in above-described embodiment, can while earphone charges, do not influence its MIC and Two functions are controlled, the experience of user is improved.
Embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations Technical field, is included within the scope of the present invention.

Claims (10)

1. a kind of headset transfer device, it is characterised in that including:
First connection end, couples the first pin of earphone, and the first pin of the earphone is used to transmit charging signals to described Earphone, and the function signal that the detection earphone is produced;
Second connection end, couples the first pin of mobile terminal;
Circuit is controlled, first connection end and second connection end are coupled, for being managed in the earphone by described first When pin is charged, perform it is following at least one:
The charging signals on the first pin of the earphone are prevented to transmit to second connection end, and by the first of the earphone The first function signal on pin is exported to the first pin of the mobile terminal by second connection end;
According to the situation of change of the charging signals on the first pin of the earphone, the second function signal is generated, and by described Second connection end is exported to the first pin of the mobile terminal.
2. headset transfer device according to claim 1, it is characterised in that the control circuit includes:
DC filtering circuit, for connecting first connection end and the second connection end, for preventing the charging signals from transmitting To second connection end, and the first function signal as AC signal is transmitted to second connection end;
Decision circuitry, is connected to first connection end, for the charging signals and setting signal to be contrasted;
On-off circuit, wherein, the control end of the on-off circuit connects the decision circuitry, the first signal of the on-off circuit End ground connection, the secondary signal end of the on-off circuit connects second connection end, and the on-off circuit is used to sentence according to The comparing result of deenergizing is switched on or switched off.
3. headset transfer device according to claim 2, it is characterised in that
The DC filtering circuit includes the first electric capacity, and the two ends of first electric capacity connect first connection end and the respectively Two connection ends;
The decision circuitry includes:
First resistor, its first end coupling setting charging voltage, its second end couples first connection end;Wherein, described One connection end is connected with a key circuit, and the key circuit includes key switch, second resistance and the first ground sequentially connected End;
The 3rd resistor of interconnection and the 4th resistance, wherein, the first end coupling setting charging electricity of the 3rd resistor Pressure, the first end of the 4th resistance connects the second ground terminal;
Comparator, its positive input couples the second end of the 3rd resistor and the 4th resistance, its negative input coupling institute State the first connection end;
The on-off circuit includes switching tube, and the control end of the switching tube couples the output end of the comparator, its first end Second connection end is coupled, its second end couples second ground terminal;
Wherein, the ratio of the first resistor and second resistance is more than the 3rd resistor and the ratio of the 4th resistance.
4. headset transfer device according to claim 3, it is characterised in that
The key circuit is arranged on the earphone or the headset transfer device.
5. the headset transfer device according to any one of Claims 1-4, it is characterised in that
First connection end is earphone jack, for being coupled with the headset plug of the earphone, including the first MIC ends, first L channel end, the first R channel end and the first GND ends;
Second connection end is headset plug, for being coupled with the earphone jack of the mobile terminal, including the 2nd MIC ends, Second L channel end, the second R channel end and the 2nd GND ends;
Wherein, the first L channel end couples the second L channel end, and the first R channel end coupling described second is right Sound channel end, the first GND ends couple the 2nd GND ends, and the first MIC ends couple the first pin of the earphone, institute State the first pin that the 2nd MIC ends couple the mobile terminal;
First function signal is the voice signal that detects of the first MIC ends, second function signal be due to by The charging signals at the first MIC ends change the control signal to be formed caused by key switch is connected.
6. headset transfer device according to claim 1, it is characterised in that also include:
Charging inlet, couples external power source;
Charge-discharge circuit, couples first connection end and the charging inlet, for external voltage to be converted into setting voltage To be charged to the earphone.
7. headset transfer device according to claim 6, it is characterised in that
The charge-discharge circuit includes a charging chip, and the charging chip includes:
VDD pins, couple the vdd terminal of the charging inlet;
GND pin, couples the 3rd ground terminal;
BAT pins, couple the positive pole of the battery of the headset transfer device;
SW pins, couple the 3rd ground terminal;
OUT_P pins, for exporting setting charging voltage;
OUT_N pins, for coupling the 4th ground terminal.
8. headset transfer device according to claim 7, it is characterised in that
The charge-discharge circuit also includes:
5th resistance, its first end couples the VDD pins;
Second electric capacity, its first end couples the second end of the 5th resistance, and its second end couples the 3rd ground terminal.
9. headset transfer device according to claim 7, it is characterised in that
The charge-discharge circuit also includes:
First inductance, its first end couples the SW pins, and its second end couples the BAT pins;
3rd electric capacity, its first end couples the SW pins, and its second end couples the 3rd ground terminal;
4th electric capacity, its first end is used for the positive pole for coupling the battery of the headset transfer device, and its second end is used to couple institute The negative pole of the battery of headset transfer device is stated, the negative pole of the battery of the headset transfer device couples the 3rd ground terminal.
10. headset transfer device according to claim 7, it is characterised in that
The charge-discharge circuit also includes:
5th electric capacity, its first end couples the OUT_P pins, and its second end couples the 3rd ground terminal.
CN201710236935.3A 2017-04-12 2017-04-12 Earphone switching device Active CN107040836B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710236935.3A CN107040836B (en) 2017-04-12 2017-04-12 Earphone switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710236935.3A CN107040836B (en) 2017-04-12 2017-04-12 Earphone switching device

Publications (2)

Publication Number Publication Date
CN107040836A true CN107040836A (en) 2017-08-11
CN107040836B CN107040836B (en) 2020-04-24

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ID=59536281

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710236935.3A Active CN107040836B (en) 2017-04-12 2017-04-12 Earphone switching device

Country Status (1)

Country Link
CN (1) CN107040836B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203352755U (en) * 2013-05-30 2013-12-18 安百特半导体有限公司 Earphone plug adapter
CN204836506U (en) * 2015-07-24 2015-12-02 歌尔声学股份有限公司 Headset patch cord
CN205565836U (en) * 2016-04-29 2016-09-07 深圳市金威澎电子有限公司 Emergent start power device
US9609423B2 (en) * 2013-09-27 2017-03-28 Volt Analytics, Llc Noise abatement system for dental procedures
CN206061073U (en) * 2016-08-31 2017-03-29 杭州纳雄科技有限公司 A kind of multifunctional combination earphone

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203352755U (en) * 2013-05-30 2013-12-18 安百特半导体有限公司 Earphone plug adapter
US9609423B2 (en) * 2013-09-27 2017-03-28 Volt Analytics, Llc Noise abatement system for dental procedures
CN204836506U (en) * 2015-07-24 2015-12-02 歌尔声学股份有限公司 Headset patch cord
CN205565836U (en) * 2016-04-29 2016-09-07 深圳市金威澎电子有限公司 Emergent start power device
CN206061073U (en) * 2016-08-31 2017-03-29 杭州纳雄科技有限公司 A kind of multifunctional combination earphone

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Effective date of registration: 20201130

Address after: TCL Technology Building No. 17 three road 516006 in Guangdong province Huizhou City Zhongkai high tech Zone Huifeng 5-6, building 11-14

Patentee after: Huizhou TCL Yunchuang Technology Co.,Ltd.

Address before: 518063 Guangdong city of Shenzhen province Nanshan District ten South Road West High Technology South Road North Tower B 16 floor TCL

Patentee before: Jiekai communication (Shenzhen) Co.,Ltd.

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