CN204929186U - Drive -by -wire earphone - Google Patents
Drive -by -wire earphone Download PDFInfo
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- CN204929186U CN204929186U CN201520609684.5U CN201520609684U CN204929186U CN 204929186 U CN204929186 U CN 204929186U CN 201520609684 U CN201520609684 U CN 201520609684U CN 204929186 U CN204929186 U CN 204929186U
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- earphone
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Abstract
The utility model is suitable for a drive -by -wire earphone field provides a drive -by -wire earphone, including headphone plug, the earphone switch, the L channel speaker, R channel speaker and microphone, headphone plug's ground connection pin connects simulation ground, the positive pole of L channel speaker and L channel pin that the negative pole met headphone plug respectively and reference ground, the positive pole of R channel speaker and R channel pin that the negative pole met headphone plug respectively and reference ground, the positive pole of microphone and headphone plug's microphone pin connect with the one end of earphone switch altogether, the negative pole of microphone and the other end of earphone switch all connect simulation ground, still including connecting in parallel at the positive pole of microphone and the divider resistance R1 between the negative pole, divider resistance R1's resistance is 30K omega -60K omega. The utility model discloses a divider resistance of the parallelly connected big resistance at the microphone both ends in the drive -by -wire earphone circuit for this drive -by -wire earphone is can be simultaneously compatible in the electronic equipment based on android system and iOS system, and the circuit is simple, easily realization, low cost, is suitable for extensive popularization.
Description
Technical field
The utility model belongs to line control earphone field, particularly relate to a kind of can the line control earphone of the simultaneously compatible electronic equipment based on android system and iOS system.
Background technology
Common line control earphone can not the simultaneously compatible electronic equipment based on android system and iOS system, there will be the situation that the unstable or microphone of keypress function (such as: control song up/down, play and suspend) can not normally be sounded.
Existing can the line control earphone complex circuit of the simultaneously compatible electronic equipment based on android system and iOS system, and need to use the dedicated microphone specified by iOS system and earphone chip, with high costs.
Utility model content
The object of the utility model embodiment is to provide a kind of line control earphone, be intended to solve current can the line control earphone complex circuit of the compatible electronic equipment based on android system and iOS system simultaneously, and need to use the dedicated microphone based on iOS system specified by iOS system and earphone chip, problem with high costs.
The utility model embodiment realizes like this, a kind of line control earphone, comprise headset plug, headset switch, left channel loudspeaker, right channel loudspeaker and microphone, the grounding pin of described headset plug connects in analog, the positive pole of described left channel loudspeaker and negative pole connect left channel pin and the reference ground of described headset plug respectively, the positive pole of described right channel loudspeaker and negative pole connect R channel pin and the reference ground of described headset plug respectively, one end of the positive pole of described microphone and the microphone pin of described headset plug and described headset switch connects altogether, described in the negative pole of described microphone and the other end of described headset switch all connect in analog, also comprise the divider resistance R1 between positive pole and negative pole being connected in parallel on described microphone, the resistance of described divider resistance R1 is 30K Ω ~ 60K Ω.
Preferably, also comprise between the positive pole being connected in parallel on described microphone and negative pole, in order to suppress the eliminated noise electric capacity C1 of the TDMA noise in described wire headset circuit.
Preferably, also to comprise between the positive pole being connected in parallel on described microphone and negative pole, in order to avoid the antistatic diode D1 of electrostatic that described line control earphone is in use produced.
Preferably, described in analog through a Zero-ohm resistor R2 connect described with reference to ground.
Preferably, described headset switch is touch-switch.
Preferably, the coaxial audio jack of described headset plug to be diameter be 3.5mm.
Preferably, described microphone is electric capacitor microphone.
The line control earphone that the utility model embodiment provides is compared to the beneficial effect of prior art: by the divider resistance of the large resistance in parallel of the microphone two ends in common wire headset circuit, make this line control earphone can be compatible with electronic equipment based on android system and iOS system simultaneously, and do not need to use the dedicated microphone specified by iOS system and earphone chip, circuit is simple, be easy to realize, with low cost, be suitable for extensive popularization; By an eliminated noise electric capacity in parallel at microphone two ends, the TDMA noise in wire headset circuit effectively can be suppressed; By an antistatic diode in parallel at microphone two ends, effectively can avoid line control earphone in use produced electrostatic, extend the useful life of earphone; A Zero-ohm resistor is connected in analog and between the reference ground be connected with loud speaker what be connected with microphone, separated by the audio output signal of this Zero-ohm resistor by the audio input signal of described microphone and described loud speaker, effectively can avoid the mutual interference between signal.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of common line control earphone of the prior art;
Fig. 2 is the circuit theory diagrams of the line control earphone that the utility model embodiment provides;
Fig. 3 is the circuit theory diagrams of the line control earphone that preferred embodiment of the present utility model provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 is the circuit theory diagrams of common line control earphone of the prior art.
Consult Fig. 1, line control earphone common in prior art comprises:
Headset plug 10, headset switch 20, left channel loudspeaker 31, right channel loudspeaker 32 and microphone 40, headset plug 10 comprises left channel pin 11, R channel pin 12, grounding pin 13 and microphone pin 14;
Wherein, grounding pin 13 is connected with ground wire 50, the positive pole of left channel loudspeaker 31 and negative pole connect left channel pin 11 and reference ground respectively, the positive pole of right channel loudspeaker 32 and negative pole connect R channel pin 12 and reference ground respectively, positive pole and the microphone pin 14 of microphone 40 connect altogether with one end of headset switch 20, and the negative pole of microphone 40 and the other end of headset switch 20 all connect in analog.
Microphone 40 is common electric capacitor microphone, and its inside is provided with a field effect transistor and links the variable capacitance of vibrating membrane.
In the preferred embodiment, the headset plug 10 of line control earphone selects American Standard four-part form diameter to be the coaxial audio jack of 3.5mm, and in other applications, described headset plug 10 also can select GB four-part form diameter to be the coaxial audio jack of 3.5mm.
Fig. 2 is the circuit theory diagrams of the line control earphone that the utility model embodiment provides.
Consult Fig. 2, the circuit of the line control earphone that the utility model embodiment provides, it is the improvement that the basis of common wire headset circuit is in the prior art done, a positive and negative end divider resistance R1 in parallel of the microphone in common wire headset circuit, the resistance of the electronic equipment internal based on iOS system connected for auxiliary line control earphone carries out dividing potential drop, during to ensure that microphone 40 works, the output impedance of the field effect transistor of its inside is not easy to be subject to ambient noise, the variable effect of the factors such as the vibrations of vibrating membrane, to ensure that the magnitude of voltage at microphone 40 two ends is stablized.When described line control earphone 40 is connected with the electronic equipment based on android system, then the problems referred to above can not be produced.
In a particular application, when line control earphone is connected with the electronic equipment based on iOS system, in order to ensure that the output impedance of microphone 40 is not easy to be subject to the variable effect of the factor such as vibrations of ambient noise, vibrating membrane, need to select the larger divider resistance of resistance to assist the resistance based on the electronic equipment internal of iOS system to carry out dividing potential drop, therefore, divider resistance R1 should select resistance to be the large resistance of 30K Ω ~ 60K Ω.
In a particular application, the described electronic equipment based on iOS system and the electronic equipment based on android system can be mobile phone or panel computer.
Fig. 3 is the circuit theory diagrams of the line control earphone that preferred embodiment of the present utility model provides.
Consult Fig. 3, in preferred embodiment of the present utility model, line control earphone specifically also comprises:
Be connected in parallel on the eliminated noise electric capacity C1 between the positive pole of described microphone and negative pole; And the antistatic diode D1 be connected in parallel between the positive pole of microphone 40 and negative pole.Eliminated noise electric capacity C1 is mainly used in eliminating the TDMA noise (TDMA noise, i.e. time division multiple access noise, main frequency is 217HZ) produced in line control earphone use procedure; Antistatic diode D1 is mainly used in avoiding line control earphone in use produced electrostatic, prevents electrostatic breakdown earphone, extends the useful life of earphone.
In a particular application, antistatic diode D1 comprises the voltage stabilizing didoe of two positive pole docking, and the negative pole of one of them voltage stabilizing didoe connects the positive pole of microphone 40, and the negative pole of another voltage stabilizing didoe connects the negative pole of microphone 40.
In the preferred embodiment, headset switch 20 selects touch-switch, for controlling song up/down, the broadcasting/time-out of the electronic equipment based on android system and iOS system, when the described electronic equipment based on android system and iOS system is mobile phone, headset switch 20 is also for controlling receiving/hang-up during cell phone incoming call.
In the preferred embodiment, connected by a Zero-ohm resistor R2 in analog and with reference between ground, by this Zero-ohm resistor R2, the audio output signal of the audio input signal of microphone and two loud speakers is separated, effectively can avoid the mutual interference between signal.
Common line control earphone of the prior art is inserted the electronic equipment (in this enforcement, preferred iPhone mobile phone is as tested object) based on iOS system, level on the microphone pin of the earphone jack of iPhone mobile phone is unstable, and whether iPhone mobile phone is in the state detecting described line control earphone exact connect ion always.
Line control earphone the utility model embodiment provided inserts the electronic equipment (in this enforcement, preferred iPhone mobile phone is as tested object) based on iOS system, level on the microphone pin of the earphone jack of iPhone mobile phone is stabilized in 2.03V always, iPhone mobile phone with described line control earphone exact connect ion.Therefore, the line control earphone that the utility model embodiment provides is by means of only connecting a large resistance divider resistance at the microphone two ends of common wire headset circuit, namely simple and effective this line control earphone that makes can be compatible with electronic equipment based on android system and iOS system simultaneously, do not need to use the dedicated microphone specified by iOS system and earphone chip, circuit is simple, be easy to realize, with low cost, be suitable for extensive popularization.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (7)
1. a line control earphone, comprise headset plug, headset switch, left channel loudspeaker, right channel loudspeaker and microphone, the grounding pin of described headset plug connects in analog, the positive pole of described left channel loudspeaker and negative pole connect left channel pin and the reference ground of described headset plug respectively, the positive pole of described right channel loudspeaker and negative pole connect the R channel pin of described headset plug and described reference ground respectively, one end of the positive pole of described microphone and the microphone pin of described headset plug and described headset switch connects altogether, described in the negative pole of described microphone and the other end of described headset switch all connect in analog, it is characterized in that, also comprise the divider resistance R1 between positive pole and negative pole being connected in parallel on described microphone, the resistance of described divider resistance R1 is 30K Ω ~ 60K Ω.
2. line control earphone as claimed in claim 1, is characterized in that, also comprise be connected in parallel on described microphone between positive pole and negative pole, in order to suppress the eliminated noise electric capacity C1 of the TDMA noise in described wire headset circuit.
3. line control earphone as claimed in claim 1 or 2, is characterized in that, also comprise be connected in parallel on described microphone between positive pole and negative pole, in order to avoid the antistatic diode D1 of electrostatic that described line control earphone is in use produced.
4. the line control earphone as described in claim 1 or 3, is characterized in that, described in analog through a Zero-ohm resistor R2 connect described with reference to ground.
5. line control earphone as claimed in claim 1, it is characterized in that, described headset switch is touch-switch.
6. line control earphone as claimed in claim 1, is characterized in that, the coaxial audio jack of described headset plug to be diameter be 3.5mm.
7. line control earphone as claimed in claim 1, it is characterized in that, described microphone is electric capacitor microphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520609684.5U CN204929186U (en) | 2015-08-13 | 2015-08-13 | Drive -by -wire earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520609684.5U CN204929186U (en) | 2015-08-13 | 2015-08-13 | Drive -by -wire earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204929186U true CN204929186U (en) | 2015-12-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520609684.5U Active CN204929186U (en) | 2015-08-13 | 2015-08-13 | Drive -by -wire earphone |
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| Country | Link |
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| CN (1) | CN204929186U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107925822A (en) * | 2015-08-31 | 2018-04-17 | 伯斯有限公司 | Microphone compatibility |
| CN108632691A (en) * | 2017-10-09 | 2018-10-09 | 北京视联动力国际信息技术有限公司 | A kind of antistatic microphone |
| CN113453115A (en) * | 2021-07-21 | 2021-09-28 | 惠州市欧凡实业有限公司 | Earphone crosstalk processing device and method |
-
2015
- 2015-08-13 CN CN201520609684.5U patent/CN204929186U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107925822A (en) * | 2015-08-31 | 2018-04-17 | 伯斯有限公司 | Microphone compatibility |
| CN108632691A (en) * | 2017-10-09 | 2018-10-09 | 北京视联动力国际信息技术有限公司 | A kind of antistatic microphone |
| CN113453115A (en) * | 2021-07-21 | 2021-09-28 | 惠州市欧凡实业有限公司 | Earphone crosstalk processing device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Longgang District of Shenzhen City, Guangdong province 518116 Ping Street Takahashi Industrial Park East Area Patentee after: SHENZHE GUANXU ELECTRONIC CO., LTD. Address before: Longgang District of Shenzhen City, Guangdong province 518116 Ping Street Takahashi Industrial Park East Area Patentee before: Shenzhen Grandsun Electronic Co., Ltd. |