CN105100991A - Compatible method and device of earphone - Google Patents
Compatible method and device of earphone Download PDFInfo
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- CN105100991A CN105100991A CN201510328524.8A CN201510328524A CN105100991A CN 105100991 A CN105100991 A CN 105100991A CN 201510328524 A CN201510328524 A CN 201510328524A CN 105100991 A CN105100991 A CN 105100991A
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- earphone
- pin
- mike
- socket
- part form
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Abstract
The invention provides a compatible method and device of an earphone. The method comprises: after inserting the earphone into an earphone socket, receiving a signal of a microphone pin in the earphone socket to judge and output a first identification signal, determining whether the earphone is a four-section American standard earphone according to the first identification signal, if so, controlling the earphone socket to match with the four-section American standard earphone and connect the same, if not, controlling a grounding pin and a microphone pin of the earphone socket to exchange, receiving a signal of the exchanged microphone pin to judge and output a second identification signal, judging whether the earphone is a three-section earphone or a four-section international standard earphone according to the second identification signal, and controlling the earphone socket to match and connect according to the identified earphone type. In the compatible method provided by the invention, different types of earphones can be identified and compatible.
Description
Technical field
The present invention relates to the communication technology, particularly relate to a kind of compatibility method and device of earphone.
Background technology
Along with popularizing of electronic equipment, increasing user has held electronic equipment miscellaneous, such as all kinds of audio player, video player, and have the terminal such as mobile phone, panel computer, notebook of audio frequency, video playback capability concurrently, these electronic equipments are all equipped with the annexes such as earphone, after earphone being inserted the earphone jack of equipment, user can appreciate the audio-frequency unit of audio frequency and video by earphone.
At present, international earphone is unified standard not, and conventional earphone is mainly divided three classes: three-section earphone, American Standard four-section type headset and international four-section type headset.As shown in Figure 1, the plug of three-section earphone comprises successively: L channel district 11, R channel district 12 and access area 13; The plug of four-part form American Standard earphone comprises successively: L channel district 21, R channel district 22, access area 23 and Mike district (mic) 24; The plug of the international earphone of four-part form comprises successively: L channel district 31, R channel district 32, Mike district 33 and access area 34.
In prior art, the headset type that electronic equipment is corresponding is unique, and then cannot use after being replaced with the earphone of other types, namely earphone compatible is very poor.
Summary of the invention
The invention provides a kind of compatibility method and device of earphone, the problem of unique type earphone can only be used for solving existing electronic equipment.
First aspect present invention provides a kind of compatible apparatus of earphone, comprising: earphone socket, identification module and control module; Described earphone socket comprises L channel pin, R channel pin, ground pin and Mike's pin from inside to outside successively;
After earphone inserts described earphone socket, afterbody section and described Mike's pin of described earphone are connected;
Described identification module, after inserting described earphone socket at earphone, connect with described Mike's pin, the signal receiving Mike's pin carries out judging and exports the first identification signal, if described first identification signal is non-zero signal, then determine that described earphone is four-part form American Standard earphone, if described first identification signal is 0, then determine that described earphone is the international earphone of three-section earphone or four-part form;
Described control module, be connected with described earphone socket and described identification module, for identifying after described earphone is four-part form American Standard earphone at described identification module, control described earphone socket mate with described four-part form American Standard earphone and connect, or, after at described identification module, to identify described earphone be the international earphone of three-section earphone or four-part form, the ground pin and the Mike's pin that control described earphone socket exchange, the tail region of described earphone with exchange after new ground pin connect;
Described identification module, for connecting with the rear new Mike's pin of exchange, and the signal receiving described exchange Mike's pin new afterwards carries out judging and exports the second identification signal, if described second identification signal is non-zero signal, then determine that described earphone is the international earphone of four-part form, if described second identification signal is 0, then determine that described earphone is three-section earphone;
Described control module, for identifying after described earphone is the international earphone of four-part form at described identification module, control described earphone socket mate with the international earphone of described four-part form and connect, or, after to identify described earphone be three-section earphone at described identification module, control described earphone socket and described three-section earphone is connected.
Second aspect present invention provides a kind of compatibility method of earphone, comprising:
After earphone plugged earphone socket, the signal receiving Mike's pin in described earphone socket carries out judging and exports the first identification signal, if described first identification signal is non-zero signal, then determine that described earphone is four-part form American Standard earphone, if described first identification signal is 0, then determine that described earphone is the international earphone of three-section earphone or four-part form, wherein, afterbody section and described Mike's pin of described earphone are connected;
If described earphone is four-part form American Standard earphone, controls described earphone socket and mate with described four-part form American Standard earphone and connect; Or if described earphone is the international earphone of three-section earphone or four-part form, the ground pin and the Mike's pin that control described earphone socket exchange, wherein, the tail region of described earphone is connected with the rear new ground pin of exchange;
The signal receiving described exchange Mike's pin new afterwards carries out judging and exports the second identification signal, if described second identification signal is non-zero signal, then determine that described earphone is the international earphone of four-part form, if described second identification signal is 0, then determine that described earphone is three-section earphone;
If described earphone is after the earphone of the four-part form world, controls described earphone socket and mate with the international earphone of described four-part form and connect; Or, if described earphone is after three-section earphone, control described earphone socket and described three-section earphone is connected.
The compatibility method of earphone provided by the invention and device, the signal that can be exported by earphone socket Mike pin carries out judgement output first identification signal, when the first identification signal is non-zero, determine that this earphone is four-part form American Standard earphone, otherwise the ground pin and the Mike's pin that control described earphone socket exchange, to judge that earphone is as three-section earphone or the international earphone of four-part form further, control earphone socket according to judged result mate with inserted earphone and to connect, achieve the earphone that can identify that also compatibility is dissimilar.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of three types earphone;
Fig. 2 is the structural representation of earphone compatible device embodiment one provided by the invention;
The structural representation of earphone socket in the earphone compatible device that Fig. 3 provides for the embodiment of the present invention;
The structural representation of control module in the earphone compatible device that Fig. 4 provides for the embodiment of the present invention;
The structural representation of identification module in the earphone compatible device that Fig. 5 provides for the embodiment of the present invention;
Fig. 6 is the schematic flow sheet of the compatibility method embodiment one of earphone provided by the invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 2 is the structural representation of earphone compatible device embodiment one provided by the invention, and this device can be integrated in arbitrary disposition to be had on the terminal equipment of ear-phone function.The structural representation of earphone socket in the earphone compatible device that Fig. 3 provides for the embodiment of the present invention.
As shown in Figure 2, this device comprises: earphone socket 101, identification module 102 and control module 103.See Fig. 2, earphone socket 101 comprises from inside to outside successively: L channel pin L, R channel pin R, ground pin GND and Mike's pin MIC_IN, wherein:
After earphone plugged earphone socket 101, tail region and Mike's pin MIC_IN of earphone connect.With reference to Fig. 1, the tail region of three-section earphone and the international earphone of four-part form is access area, and the tail region of four-part form American Standard earphone is Mike district.
Identification module 102, connect for and Mike's pin MIC_IN rear at earphone plugged earphone socket 101, the signal receiving Mike's pin MIC_IN carries out judging and exports the first identification signal, if the first identification signal is non-zero signal, then determines that this earphone is four-part form American Standard earphone.If the first identification signal is 0, then determine that this earphone is the international earphone of three-section earphone or four-part form.
Particularly, the tail region of four-part form American Standard earphone is Mike region, is equivalent to resistance, the signal exported must be non-zero, and the tail region of three-section earphone or the international earphone of four-part form is ground area, be equivalent to identification module ground connection after connection, the signal of output is 0.
Control module 103, is connected with earphone socket 101 and identification module 102, for identifying at identification module 102 after earphone is four-part form American Standard earphone, controlling earphone socket and mates with four-part form American Standard earphone and connect.Or, if it is after the international earphone of three-section earphone or four-part form that identification module 102 identifies above-mentioned earphone, the ground pin GND and the Mike's pin MIC_IN that control above-mentioned earphone socket 101 exchange, and namely the tail region of earphone is connected with the rear new ground pin of exchange.The secondary tail region that after exchanging, Mike's pin MIC_IN is adjacent with tail region is connected.The secondary tail region of the international earphone of four-part form is Mike region.
Further, identification module 102, for connecting with the rear new Mike's pin MIC_IN of exchange, and the signal of Mike's pin MIC_IN new after receiving exchange carries out judging and exports the second identification signal, if the second identification signal is non-zero, then determine that this earphone is the international earphone of four-part form, if the second identification signal is 0, then determine that this earphone is three-section earphone.
With reference to Fig. 3, the initial condition of earphone socket 101 is exactly the state of mate with four-part form American Standard earphone, determine insertion be four-part form American Standard earphone after can directly use this earphone.If plugged earphone is the international earphone of three-section earphone or four-part form, then need ground pin and Mike's pin MIC_IN to switch, namely can match, for three-section earphone with the international earphone of four-part form after switching,, there is not Mike's pin in the Mike's pin MIC_IN ground connection after switching.
In the present embodiment, the signal that identification module can be exported by earphone socket Mike pin carries out judgement output first identification signal, when the first identification signal is non-zero, determine that this earphone is four-part form American Standard earphone, otherwise the ground pin and the Mike's pin that control described earphone socket exchange, to judge that earphone is as three-section earphone or the international earphone of four-part form further, control earphone socket according to judged result mate with inserted earphone and to connect, achieve the earphone that can identify that also compatibility is dissimilar.
The structural representation of control module in the earphone compatible device that Fig. 4 provides for the embodiment of the present invention, as shown in Figure 4, above-mentioned control module 103 comprises input/output interface circuit 401 and logical circuit 402.Here logical circuit can select logical transition device, such as a SGM3799YTQA16TR.
Input/output interface circuit 401 is connected with the first pin of logical circuit 402.With reference to Fig. 4, this first pin comprises pin IN1_IN2 and IN3_IN4.
The ground pin GND of earphone socket 101 is connected with the second pin COM1 and three-prong COM2 of logical circuit 402 respectively with Mike's pin MIC_IN.With reference to Fig. 4, this second pin comprises pin COM1, NC3 and NC4 of logical circuit; Three-prong comprises pin COM2, NO3, NO4 of logical circuit.
It should be noted that, under initial condition, GPIO_SW_IN is low level, and now logical circuit 402 inside connection is: COM1 and NC1 connects, and COM2 and NO1 connects, and ground pin GND is connected with the second pin, Mike's pin MIC_IN is connected with three-prong;
After GPIO_SW_IN is set to high level, the connection of logical circuit 402 inside is: COM1 and NC2 connects, and COM2 and NO2 connects, and ground pin GND is connected with the second pin, Mike's pin MIC_IN is connected with three-prong.Achieve the different connections of MIC and MIC_IN and GND.
Connect with reference to Fig. 4, pin NO1 and NC2 and MIC pin, MIC is the output pin of MIC_IN after logical circuit 402 is changed here.
In another embodiment, control module 103, specifically for being inputted the level of above-mentioned logical circuit 402 by the above-mentioned input/output interface circuit 401 of adjustment, is exchanged the ground pin GND of earphone socket and Mike's pin MIC_IN.
More specifically, control module 103, specifically for the low level of input/output interface circuit 401 input logic circuit 402 is adjusted to high level, to exchange the ground pin of earphone socket and Mike's pin.
Input/output interface circuit 401 is to logical circuit 402 input signal GPIO_SW_IN, at the beginning, signal GPIO_SW_IN is low level signal, if the first identification signal is 0, ground pin and Mike's pin need to exchange, signal GPIO_SW_IN is switched to high level, namely ground pin and Mike's pin can be exchanged.
The structural representation of identification module in the earphone compatible device that Fig. 5 provides for the embodiment of the present invention, as shown in Figure 5, this identification module 102 comprises: the first comparator A and the second comparator B.First comparator A is connected with the positive pole port of the second comparator B, and common output end is designated as AccDetect.
Above-mentioned identification module 102 is connected with Mike's pin MIC_IN, be specially the first comparator A and the second comparator B all connects with Mike's pin, the signal that Mike's pin MIC_IN exports is through the first comparator A and the second comparator B, output first identification signal is held from AccDetect, first identification signal is shown as digital signal after analog-to-digital conversion, if earphone is four-part form American Standard earphone, the first identification signal is shown as 01, otherwise is shown as 00.
Above-mentioned identification module 102 with exchange after new Mike's pin connects, be specially the first comparator A and the second comparator B all with exchange rear new Mike's pin connect.The signal that Mike's pin exports is through the first comparator A and the second comparator B, output second identification signal is held from AccDetect, second identification signal is shown as digital signal after analog-to-digital conversion, if earphone is four-part form world earphone, second identification signal is shown as 01, if three-section earphone, then the second identification signal is shown as 00.
There will be interruption after being extracted by earphone, the Signal aspects that AccDetect end exports is 11.
First comparator A is different with the voltage of the second comparator B, and more preferably, as shown in Figure 5, the voltage of the first comparator A is 1.77V, and the voltage of the second comparator is 0.4V, but not as limit.
Fig. 6 is the schematic flow sheet of the compatibility method embodiment one of earphone provided by the invention, and as shown in Figure 6, the method comprises:
S601, after earphone plugged earphone socket, the signal receiving Mike's pin in described earphone socket carries out judging and exports the first identification signal.
Particularly, after earphone plugged earphone socket, afterbody section and described Mike's pin of earphone are connected.
S602, judge whether the first identification signal is non-zero signal, if so, performs S603, if not, perform S604.
S603, determine that earphone is four-part form American Standard earphone, control described earphone socket and mate with described four-part form American Standard earphone and connect.
S604, the ground pin controlling described earphone socket and Mike's pin exchange.Switching method with reference to previous embodiment, can not repeat them here particularly.
Wherein, the tail region of described earphone is connected with the rear new ground pin of exchange.
S605, the signal receiving described exchange Mike's pin new afterwards carry out judging and export the second identification signal.
S606, judge whether the second identification signal is non-zero signal, if so, then performs S607, if not, then performs S608.
S607, determine that described earphone is the international earphone of four-part form, control described earphone socket and mate with described four-part form world earphone and connect.
S608, determine that described earphone is three-section earphone, control described earphone socket and described three-section earphone is connected.
In the present embodiment, the signal exported by earphone socket Mike pin carries out judgement output first identification signal, when the first identification signal is non-zero, determine that this earphone is four-part form American Standard earphone, otherwise the ground pin and the Mike's pin that control described earphone socket exchange, to judge that earphone is as the international earphone of three-section earphone or four-part form further, control earphone socket according to judged result and mate with inserted earphone and to connect, achieve the earphone that can identify that also compatibility is dissimilar.
The method of the method performed by aforementioned means, it realizes principle and technique effect is similar, does not repeat them here.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each embodiment of the method can have been come by the hardware that program command is relevant.Aforesaid program can be stored in a computer and can obtain in storage medium.This program, when performing, performs the step comprising above-mentioned each embodiment of the method; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a compatible apparatus for earphone, is characterized in that, comprising: earphone socket, identification module and control module; Described earphone socket comprises L channel pin, R channel pin, ground pin and Mike's pin from inside to outside successively;
After earphone inserts described earphone socket, afterbody section and described Mike's pin of described earphone are connected;
Described identification module, after inserting described earphone socket at earphone, connect with described Mike's pin, the signal receiving Mike's pin carries out judging and exports the first identification signal, if described first identification signal is non-zero signal, then determine that described earphone is four-part form American Standard earphone, if described first identification signal is 0, then determine that described earphone is the international earphone of three-section earphone or four-part form;
Described control module, be connected with described earphone socket and described identification module, for identifying after described earphone is four-part form American Standard earphone at described identification module, control described earphone socket mate with described four-part form American Standard earphone and connect, or, after at described identification module, to identify described earphone be the international earphone of three-section earphone or four-part form, the ground pin and the Mike's pin that control described earphone socket exchange, the tail region of described earphone with exchange after new ground pin connect;
Described identification module, for connecting with the rear new Mike's pin of exchange, and the signal receiving described exchange Mike's pin new afterwards carries out judging and exports the second identification signal, if described second identification signal is non-zero signal, then determine that described earphone is the international earphone of four-part form, if described second identification signal is 0, then determine that described earphone is three-section earphone;
Described control module, for identifying after described earphone is the international earphone of four-part form at described identification module, control described earphone socket mate with the international earphone of described four-part form and connect, or, after to identify described earphone be three-section earphone at described identification module, control described earphone socket and described three-section earphone is connected.
2. device according to claim 1, is characterized in that, described control module comprises: input/output interface circuit and logical circuit;
Described input/output interface circuit is connected with the first pin of described logical circuit;
The ground pin of described earphone socket and Mike's pin are connected with the second pin of described logical circuit and three-prong respectively.
3. device according to claim 2, is characterized in that, described control module, specifically for being inputted the level of described logical circuit by the described input/output interface circuit of adjustment, the ground pin of described earphone socket and Mike's pin is exchanged.
4. device according to claim 3, it is characterized in that, described control module, is adjusted to high level, the ground pin of described earphone socket and Mike's pin to be exchanged specifically for the low level described input/output interface circuit being inputted the input of described logical circuit.
5. device according to claim 1, is characterized in that, described identification module comprises: the first comparator and the second comparator;
Described identification module and described Mike's pin are connected, and are specially described first comparator and the second comparator is all connected with described Mike's pin;
Described identification module with exchange after new Mike's pin connect, be specially described first comparator and all new afterwards with the described exchange Mike's pin of the second comparator is connected;
Described first comparator is different from the voltage of described second comparator.
6. a compatibility method for earphone, is characterized in that, comprising:
After earphone plugged earphone socket, the signal receiving Mike's pin in described earphone socket carries out judging and exports the first identification signal, if described first identification signal is non-zero signal, then determine that described earphone is four-part form American Standard earphone, if described first identification signal is 0, then determine that described earphone is the international earphone of three-section earphone or four-part form, wherein, afterbody section and described Mike's pin of described earphone are connected;
If described earphone is four-part form American Standard earphone, controls described earphone socket and mate with described four-part form American Standard earphone and connect; Or if described earphone is the international earphone of three-section earphone or four-part form, the ground pin and the Mike's pin that control described earphone socket exchange, wherein, the tail region of described earphone is connected with the rear new ground pin of exchange;
The signal receiving described exchange Mike's pin new afterwards carries out judging and exports the second identification signal, if described second identification signal is non-zero signal, then determine that described earphone is the international earphone of four-part form, if described second identification signal is 0, then determine that described earphone is three-section earphone;
If described earphone is after the earphone of the four-part form world, controls described earphone socket and mate with the international earphone of described four-part form and connect; Or, if described earphone is after three-section earphone, control described earphone socket and described three-section earphone is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510328524.8A CN105100991B (en) | 2015-06-15 | 2015-06-15 | The compatibility method and device of earphone |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510328524.8A CN105100991B (en) | 2015-06-15 | 2015-06-15 | The compatibility method and device of earphone |
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| CN105100991A true CN105100991A (en) | 2015-11-25 |
| CN105100991B CN105100991B (en) | 2018-05-08 |
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| CN201510328524.8A Expired - Fee Related CN105100991B (en) | 2015-06-15 | 2015-06-15 | The compatibility method and device of earphone |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108810751A (en) * | 2018-07-26 | 2018-11-13 | 合肥联宝信息技术有限公司 | A kind of circuit and electronic equipment of electronic components for identification |
| CN110166878A (en) * | 2019-06-21 | 2019-08-23 | 昆腾微电子股份有限公司 | Headset switch control circuit, headset switch control method and electronic equipment |
| CN111586518A (en) * | 2020-05-15 | 2020-08-25 | 深圳宝龙达信创科技股份有限公司 | Earphone compatible circuit, electronic device, control method, and computer-readable storage medium |
| CN112866865A (en) * | 2021-03-15 | 2021-05-28 | 北京小鸟科技股份有限公司 | Multi-section type earphone self-adaptive switching system, method and equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203243488U (en) * | 2013-03-13 | 2013-10-16 | 青岛海信移动通信技术股份有限公司 | Headset adapter device and mobile terminal |
| CN203523003U (en) * | 2013-10-24 | 2014-04-02 | 深圳市奋达科技股份有限公司 | Earphone plug capable of switching earphone mode |
| CN103974163A (en) * | 2014-05-28 | 2014-08-06 | 深圳市中兴移动通信有限公司 | Earphone compatible method, earphone compatible device and mobile terminal |
| US20150156584A1 (en) * | 2013-12-02 | 2015-06-04 | Wistron Corp. | Circuit for microphone pin assignment detection and method thereof |
-
2015
- 2015-06-15 CN CN201510328524.8A patent/CN105100991B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203243488U (en) * | 2013-03-13 | 2013-10-16 | 青岛海信移动通信技术股份有限公司 | Headset adapter device and mobile terminal |
| CN203523003U (en) * | 2013-10-24 | 2014-04-02 | 深圳市奋达科技股份有限公司 | Earphone plug capable of switching earphone mode |
| US20150156584A1 (en) * | 2013-12-02 | 2015-06-04 | Wistron Corp. | Circuit for microphone pin assignment detection and method thereof |
| CN103974163A (en) * | 2014-05-28 | 2014-08-06 | 深圳市中兴移动通信有限公司 | Earphone compatible method, earphone compatible device and mobile terminal |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108810751A (en) * | 2018-07-26 | 2018-11-13 | 合肥联宝信息技术有限公司 | A kind of circuit and electronic equipment of electronic components for identification |
| CN110166878A (en) * | 2019-06-21 | 2019-08-23 | 昆腾微电子股份有限公司 | Headset switch control circuit, headset switch control method and electronic equipment |
| CN111586518A (en) * | 2020-05-15 | 2020-08-25 | 深圳宝龙达信创科技股份有限公司 | Earphone compatible circuit, electronic device, control method, and computer-readable storage medium |
| CN112866865A (en) * | 2021-03-15 | 2021-05-28 | 北京小鸟科技股份有限公司 | Multi-section type earphone self-adaptive switching system, method and equipment |
| CN112866865B (en) * | 2021-03-15 | 2021-12-21 | 北京小鸟科技股份有限公司 | Multi-section type earphone self-adaptive switching system, method and equipment |
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|---|---|
| CN105100991B (en) | 2018-05-08 |
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