CN105681995A - Automatic earphone type identification device and method - Google Patents
Automatic earphone type identification device and method Download PDFInfo
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- CN105681995A CN105681995A CN201410654990.0A CN201410654990A CN105681995A CN 105681995 A CN105681995 A CN 105681995A CN 201410654990 A CN201410654990 A CN 201410654990A CN 105681995 A CN105681995 A CN 105681995A
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Abstract
The invention provides an automatic earphone type identification device and method. A control switch is used for controlling a MIC (Microphone) cable signal and a GND (Ground) cable signal to be matched with a type of an earphone plugged into an earphone interface according to a judgement result of a detection unit, so that a user does not need to consider whether an earphone type is matched with the earphone interface or not while purchasing an earphone; an earphone of any type can be used normally; and the problem that the earphone cannot be used normally due to mismatch between a standard of a plug of an earphone purchased by the user and a standard of the earphone interface since the standard of the earphone interface and the earphone type cannot be identified in the prior art is solved.
Description
Technical field
The present invention relates to audio frequency apparatus technical field, particularly to a kind of headset type automatic identification equipment and method.
Background technology
For designing for mobile communication terminal now, ear-phone function use on a mobile communication terminal is very general and be an indispensable functional module. On current mobile communication terminal, earphone interface generally adopts 3.5mm headset plug, earphone interface standard to be divided into two kinds: international standard CTIA interface, international standard OMTP interface. Corresponding, headset plug is also classified into having both standards, and in general, for the earphone interface of mobile communication terminal, international manufacturer major part uses CTIA standard, and domestic crudely-made articles product then needs to support OMTP standard.
The headset plug of OMTP is the 3.5mm headset plug with MIC, is commonly referred to domestic standard, and contact pin connection is (counting from microcephaly): L channel-R channel-mike-ground wire. The headset plug of CTIA is the 3.5mm headset plug with MIC, is commonly referred to international standard, and contact pin connection is (counting from microcephaly): L channel-R channel-ground wire-mike.
Due to, be the headset plug of CTIA or OMTP it is all four-part form contact pin structure, it is respectively provided with " L channel " " R channel " " GND " " MIC " four signals, can be seen that, CTIA standard and OMTP standard are distinctive in that the position of MIC and GND is contrary, when buying earphone, the plug of earphone is from being difficult to what identification was distinguished in appearance, therefore when not knowing the standard of earphone interface of existing mobile communication terminal, the earphone matched for mobile communication terminal cannot be selected, this can bring doubt to user when selecting earphone, make troubles to the use of user, if the standard of the earphone interface of the headset plug standard of the earphone selected and mobile communication terminal is not mated, then can cause that earphone cannot normally use.
Summary of the invention
It is an object of the invention to provide a kind of headset type automatic identification equipment and method, during to solve that in use prior art, the standard of earphone interface of mobile communication terminal is not mated with the standard of the plug of earphone, cause the problem that earphone cannot normally use.
For solving above-mentioned technical problem, the present invention provides a kind of headset type automatic identification equipment, described headset type automatic identification equipment includes: for inserting the earphone interface of earphone, detection unit and regulating switch, described earphone interface is connected with described detection unit by MIC line, and by GND line ground connection;Described detection unit is for detecting whether described earphone interface has earphone to insert and judge whether the headset type of described insertion matches with earphone interface; Described regulating switch controls, for the judged result according to described detection unit, the headset type that on signal and GND line, signal and described earphone interface insert on MIC line and matches.
Optionally, in described headset type automatic identification equipment, described regulating switch includes two groups of switches, and often group switch all includes one first switch and one and the second switch of described first switch in parallel; Wherein, the first second switch switched in switching with second group in first group of switch is connected, and the second switch in first group of switch and the first switch in second group of switch are connected.
Optionally, in described headset type automatic identification equipment, when the headset type that the judged result of described detection unit is described earphone interface and insertion matches, described regulating switch keeps original operating state; When the headset type that the judged result of described detection unit is described earphone interface and insertion does not match that, described first switch and second switch switch over till the headset type of detection unit judges earphone interface with insertion matches.
Optionally, in described headset type automatic identification equipment, the first switch all Guan Bi and second switch that the original operating state of described regulating switch includes in two groups of switches are all opened, or, the second switch in two groups of switches all closes and the first switch is all opened.
Optionally, in described headset type automatic identification equipment, described detection unit is provided with the comparator being connected with described MIC line, and described comparator is for determining the magnitude of voltage of signal on MIC line.
Optionally, in described headset type automatic identification equipment, on the MIC line that described detection unit is determined according to described comparator, the magnitude of voltage size of signal is to judge whether described earphone interface matches with the headset type inserted; When on MIC line, the magnitude of voltage of signal is be more than or equal to 1.0V, then described earphone interface matches with the headset type of insertion; When on MIC line the magnitude of voltage of signal more than 0.2V less than 1.0V time, then the headset type of described earphone interface and insertion does not match that.
Optionally, in described headset type automatic identification equipment, between described detection unit and described earphone interface, it is additionally provided with HPL line, HPR line and DETECT line.
Optionally, in described headset type automatic identification equipment, described regulating switch one end is connected with described earphone interface, and other end ground connection is also connected with described detection unit by MIC line.
Optionally, in described headset type automatic identification equipment, described headset type includes the earphone that headset plug is CTIA standard and the earphone that headset plug is OMTP standard.
The present invention also provides for a kind of headset type automatic identifying method, and described headset type automatic identifying method comprises the following steps:
Insert an earphone into earphone interface;
Detection unit detects whether described earphone interface has earphone to insert and judge whether the headset type of described insertion matches with earphone interface;
Regulating switch controls, for the judged result according to described detection unit, the headset type that on signal and GND line, signal and described earphone interface insert on MIC line and matches.
Optionally, in described headset type automatic identifying method, described regulating switch includes two groups of switches, and often group switch all includes one first switch and one and the second switch of described first switch in parallel; Wherein, the first second switch switched in switching with second group in first group of switch is connected, and the second switch in first group of switch and the first switch in second group of switch are connected.
Optionally, in described headset type automatic identifying method, when the headset type that the judged result of described detection unit is described earphone interface and insertion matches, described regulating switch keeps original operating state;When the headset type that the judged result of described detection unit is described earphone interface and insertion does not match that, described first switch and second switch switch over till the headset type of detection unit judges earphone interface with insertion matches.
Optionally, in described headset type automatic identifying method, the first switch all Guan Bi and second switch that the original operating state of described regulating switch includes in two groups of switches are all opened, or, the second switch in two groups of switches all closes and the first switch is all opened.
Optionally, in described headset type automatic identifying method, described detection unit is provided with the comparator being connected with described MIC line, and described comparator is for determining the magnitude of voltage of signal on MIC line.
Optionally, in described headset type automatic identifying method, on the MIC line that described detection unit is determined according to described comparator, the magnitude of voltage size of signal is to judge whether described earphone interface matches with the headset type inserted; When on MIC line, the magnitude of voltage of signal is be more than or equal to 1.0V, then described earphone interface matches with the headset type of insertion; When on MIC line the magnitude of voltage of signal more than 0.2V less than 1.0V time, then the headset type of described earphone interface and insertion does not match that.
Optionally, in described headset type automatic identifying method, between described detection unit and described earphone interface, it is additionally provided with HPL line, HPR line and DETECT line.
Optionally, in described headset type automatic identifying method, described regulating switch one end is connected with described earphone interface, and other end ground connection is also connected with described detection unit by MIC line.
Optionally, in described headset type automatic identifying method, described headset type includes the earphone that headset plug is CTIA standard and the earphone that headset plug is OMTP standard.
In headset type automatic identification equipment provided by the present invention and method, controlled, for the judged result according to described detection unit, the headset type that on signal and GND line, signal and described earphone interface insert on MIC line by described regulating switch to match, make user when buying earphone, without considering whether headset type matches with earphone interface, earphone all can normally use, avoid in prior art due to the standard of earphone interface and the equal None-identified of headset type, if the standard of plug and the standard of earphone interface of the earphone that user buys with when not mating, cause the problem that earphone cannot normally use.
Accompanying drawing explanation
Fig. 1 is the structural representation of headset type automatic identification equipment in one embodiment of the invention;
Fig. 2 is when there being earphone to insert earphone interface, the operation principle schematic diagram of headset type automatic identification equipment;
Fig. 3 is the flow chart of headset type automatic identifying method in one embodiment of the invention.
Detailed description of the invention
The headset type automatic identification equipment and the method that the present invention are proposed below in conjunction with the drawings and specific embodiments are described in further detail. According to the following describes and claims, advantages and features of the invention will be apparent from. It should be noted that, accompanying drawing all adopts the form simplified very much and all uses non-ratio accurately, only in order to convenience, the purpose aiding in illustrating the embodiment of the present invention lucidly.
Refer to Fig. 1, it is the structural representation of headset type automatic identification equipment in one embodiment of the invention, as shown in Figure 1, described headset type automatic identification equipment, including: for inserting the earphone interface 30 of earphone, detection unit 10 and regulating switch 20, described earphone interface 30 is connected with described detection unit 10 by MIC line, and by GND line ground connection;Described detection unit 10 is for detecting whether described earphone interface 30 has earphone to insert and judge whether the headset type of described insertion matches with earphone interface 30; Described regulating switch 20 controls, for the judged result according to described detection unit 10, the headset type that on signal and GND line, signal and described earphone interface 30 insert on MIC line and matches.
In the present embodiment, described regulating switch 20 includes two groups of switches, and often group switch all includes one first switch and one and the second switch of described first switch in parallel; Wherein, the first second switch switched in switching with second group in first group of switch is connected, and the second switch in first group of switch and the first switch in second group of switch are connected.
Further, when the headset type that the judged result of described detection unit 10 is described earphone interface 30 and insertion matches, described regulating switch 20 keeps original operating state; When the headset type that the judged result of described detection unit 10 is described earphone interface 30 and insertion does not match that, described first switch and second switch switch over till detection unit 10 judges that the headset type of earphone interface 30 and insertion matches; Wherein, the first switch all Guan Bi and second switch that the original operating state of described regulating switch 20 includes in two groups of switches are all opened, or, the second switch in two groups of switches all closes and the first switch is all opened. It should be noted that, the height that the duty of regulating switch 20 is the level by changing selection control signal realizes, the first switch state that all Guan Bi and second switch are all opened in two groups of switches of high level correspondence of selection control signal described here, or the state that the second switch in two groups of switches all closes and the first switch is all opened; Select high level then corresponding remaining a kind of duty of control signal.
In the present embodiment, between described detection unit 10 and described earphone interface 30, it is additionally provided with HPL line, HPR line and DETECT line; Wherein, described regulating switch 20 one end is connected with described earphone interface 30, and other end ground connection is also connected with described detection unit 10 by MIC line.
Further, described detection unit 10 is provided with the comparator being connected with described MIC line, and described comparator is for determining the magnitude of voltage of signal on MIC line. when detecting unit 10 and judging whether described earphone interface 30 matches with the headset type inserted, it is judge according to the magnitude of voltage size of signal on the MIC line determined of comparator arranged in detection unit 10, when on MIC line, the magnitude of voltage of signal is be more than or equal to 1.0V, then described earphone interface 30 matches with the headset type inserted, when on MIC line the magnitude of voltage of signal more than 0.2V less than 1.0V time, then described earphone interface 30 does not match that with the headset type inserted. here, it is equal to 1.0V for judging that the reason of boundary is with magnitude of voltage, when earphone interface 30 matches with the headset type inserted, magnitude of voltage on MIC line is be more than or equal to 1.0V, therefore, by arranging comparator in detection unit 10 to determine that on MIC line, the magnitude of voltage of signal is sized to according to judging whether earphone interface 30 mates with the headset type inserted, the plug standards of standard and earphone without knowing earphone interface 30, only need to judge on MIC line that the scope at the magnitude of voltage of signal can determine whether both mate, simplify judgement flow process, meet the demand of reality. for, when the magnitude of voltage of signal is less than 0.2V on MIC line, there are two kinds of situations, it may be assumed that now do not have earphone to insert earphone interface 30 or MIC line and GND line short circuit.It is therefore not necessary to adjust the duty of regulating switch 20.
Actually, the process adjusting the duty of regulating switch 20 is exactly change the position of GND line and the MIC line being connected with earphone interface 30, to realize the headset type coupling inserted with earphone interface 30, concrete according to as follows, the earphone that headset plug is CTIA standard and the earphone that headset plug is OMTP standard is included due to described headset type, regardless of whether be the headset plug of CTIA standard or OMTP standard be all four-part form contact pin structure, it is respectively provided with " L channel " " R channel " " GND " " MIC " four signals, and the position that CTIA standard and OMTP standard are distinctive in that MIC signal and GND signal is contrary, therefore, as long as when judging that earphone interface 30 does not mate with headset type, adjust, by regulating switch 20, the position that on the connected MIC line of earphone interface 30, on signal and GND line, signal accesses and just can realize mating of earphone interface 30 and headset type, namely achieve the earphone interface 30 automatic identification to inserting headset type, selectivity can be carried out according to the type inserting earphone and change on the MIC line of earphone interface 30 position of signal on signal and GND line, so that earphone can normally use.
Refer to Fig. 2, it is when there being earphone to insert earphone interface 30, the operation principle schematic diagram of headset type automatic identification equipment. As in figure 2 it is shown, first, performing step S100, earphone inserts earphone interface 30; Now user does not know headset type and the standard of earphone interface 30 inserted thereof. Then, perform step S101, selection control signal is arranged to low level or high level; The operation of step S101 is equivalent to arrange initial duty to regulating switch 20, namely give any one standard of earphone interface 30 (determining the initial position that on GND line and MIC line, signal accesses), be next judged as can step S101 to whether the standard of earphone interface 30 mates with earphone. Then step S103 is performed, judge on MIC line the magnitude of voltage of signal whether more than 0.2V less than 1.0V, if magnitude of voltage is more than 1.0V, then perform step S102 and (namely change the level selecting control signal, changing the level selecting control signal is exactly change in earphone interface 30 process of the on-position of signal on MIC line and GND line), after continuing the level judging to change selection control signal afterwards, now whether earphone interface 30 mates with earphone; If magnitude of voltage is not more than 0.2V less than 1.0V, now there are two kinds, namely magnitude of voltage is more than 1.0V with less than two kinds of situations of 0.2V, then determine whether that on MIC line, whether signal voltage value is be more than or equal to 1.0V by execution step S104, if, then think that MIC signal does not connect instead in earphone (namely earphone interface 30 and earphone match), it is not necessary to exchange the MIC signal of earphone interface 30 and the position of GND signal, therefore without adjusting the duty of regulating switch 20; If not, then also without doing any operation, because when magnitude of voltage is less than 0.2V, can only explain and now not have earphone to insert earphone interface 30 or MIC line and GND line short circuit, here do not have earphone to insert earphone interface 30 to refer to that earphone inserts earphone interface 30 and do not have the situation of MIC signal.
Accordingly, the present embodiment additionally provides a kind of headset type automatic identifying method. Specifically incorporated by reference to the content of reference Fig. 1 and Fig. 3, wherein Fig. 3 is the flow chart of headset type automatic identifying method in one embodiment of the invention, just in conjunction with the content of Fig. 3, headset type automatic identifying method is described in detail below, specifically includes following steps:
First, perform step S1, insert an earphone into earphone interface 30;
Then, performing step S2, detection unit 10 detects whether described earphone interface 30 has earphone to insert and judge whether the headset type of described insertion matches with earphone interface 30;
Then, performing step S3, regulating switch 20 controls on MIC line the headset type of signal and the insertion of described earphone interface 30 on signal and GND line for the judged result according to described detection unit 10 and matches.
In the present embodiment, described regulating switch 20 includes two groups of switches, and often group switch all includes one first switch and one and the second switch of described first switch in parallel; Wherein, the first second switch switched in switching with second group in first group of switch is connected, and the second switch in first group of switch and the first switch in second group of switch are connected.
Further, when the headset type that the judged result of described detection unit 10 is described earphone interface 30 and insertion matches, described regulating switch 20 keeps original operating state; When the headset type that the judged result of described detection unit 10 is described earphone interface 30 and insertion does not match that, described first switch and second switch switch over till detection unit 10 judges that the headset type of earphone interface 30 and insertion matches; Wherein, the first switch all Guan Bi and second switch that the original operating state of described regulating switch 20 includes in two groups of switches are all opened, or, the second switch in two groups of switches all closes and the first switch is all opened. It should be noted that, the height that the duty of regulating switch 20 is the level by changing selection control signal realizes, the first switch state that all Guan Bi and second switch are all opened in two groups of switches of high level correspondence of selection control signal described here, or the state that the second switch in two groups of switches all closes and the first switch is all opened; Select high level then corresponding remaining a kind of duty of control signal.
In the present embodiment, between described detection unit 10 and described earphone interface 30, it is additionally provided with HPL line, HPR line and DETECT line; Wherein, described regulating switch 20 one end is connected with described earphone interface 30, and other end ground connection is also connected with described detection unit 10 by MIC line.
Further, described detection unit 10 is provided with the comparator being connected with described MIC line, and described comparator is for determining the magnitude of voltage of signal on MIC line. when detecting unit 10 and judging whether described earphone interface 30 matches with the headset type inserted, it is judge according to the magnitude of voltage size of signal on the MIC line determined of comparator arranged in detection unit 10, when on MIC line, the magnitude of voltage of signal is be more than or equal to 1.0V, then described earphone interface 30 matches with the headset type inserted, when on MIC line the magnitude of voltage of signal more than 0.2V less than 1.0V time, then described earphone interface 30 does not match that with the headset type inserted. here, it is equal to 1.0V for judging that the reason of boundary is with magnitude of voltage, when earphone interface 30 matches with the headset type inserted, magnitude of voltage on MIC line is be more than or equal to 1.0V, therefore, by arranging comparator in detection unit 10 to determine that on MIC line, the magnitude of voltage of signal is sized to according to judging whether earphone interface 30 mates with the headset type inserted, the plug standards of standard and earphone without knowing earphone interface 30, only need to judge on MIC line that the scope at the magnitude of voltage of signal can determine whether both mate, simplify judgement flow process, meet the demand of reality.For, when the magnitude of voltage of signal is less than 0.2V on MIC line, there are two kinds of situations, it may be assumed that now do not have earphone to insert earphone interface 30 or MIC line and GND line short circuit. It is therefore not necessary to adjust the duty of regulating switch 20.
Actually, the process adjusting the duty of regulating switch 20 is exactly change the position of GND line and the MIC line being connected with earphone interface 30, to realize the headset type coupling inserted with earphone interface 30, concrete according to as follows, the earphone that headset plug is CTIA standard and the earphone that headset plug is OMTP standard is included due to described headset type, regardless of whether be the headset plug of CTIA standard or OMTP standard be all four-part form contact pin structure, it is respectively provided with " L channel " " R channel " " GND " " MIC " four signals, and the position that CTIA standard and OMTP standard are distinctive in that MIC signal and GND signal is contrary, therefore, as long as when judging that earphone interface 30 does not mate with headset type, adjust, by regulating switch 20, the position that on the connected MIC line of earphone interface 30, on signal and GND line, signal accesses and just can realize mating of earphone interface 30 and headset type, namely achieve the earphone interface 30 automatic identification to inserting headset type, selectivity can be carried out according to the type inserting earphone and change on the MIC line of earphone interface 30 position of signal on signal and GND line, so that earphone can normally use.
To sum up, in headset type automatic identification equipment provided by the present invention and method, controlled, for the judged result according to described detection unit, the headset type that on signal and GND line, signal and described earphone interface insert on MIC line by described regulating switch to match, make user when buying earphone, without considering whether headset type matches with earphone interface, earphone all can normally use, avoid in prior art due to the standard of earphone interface and the equal None-identified of headset type, if the standard of plug and the standard of earphone interface of the earphone that user buys with when not mating, cause the problem that earphone cannot normally use.
Foregoing description is only the description to present pre-ferred embodiments, not any restriction to the scope of the invention, any change that the those of ordinary skill in field of the present invention does according to the disclosure above content, modification, belongs to the protection domain of claims.
Claims (18)
1. a headset type automatic identification equipment, it is characterised in that including: for inserting the earphone interface of earphone, detection unit and regulating switch, described earphone interface is connected with described detection unit by MIC line, and by GND line ground connection; Described detection unit is for detecting whether described earphone interface has earphone to insert and judge whether the headset type of described insertion matches with earphone interface; Described regulating switch controls, for the judged result according to described detection unit, the headset type that on signal and GND line, signal and described earphone interface insert on MIC line and matches.
2. headset type automatic identification equipment as claimed in claim 1, it is characterised in that described regulating switch includes two groups of switches, often group switch all includes one first and switchs and one and the second switch of described first switch in parallel; Wherein, the first second switch switched in switching with second group in first group of switch is connected, and the second switch in first group of switch and the first switch in second group of switch are connected.
3. headset type automatic identification equipment as claimed in claim 2, it is characterised in that when the headset type that the judged result of described detection unit is described earphone interface and insertion matches, described regulating switch keeps original operating state; When the headset type that the judged result of described detection unit is described earphone interface and insertion does not match that, described first switch and second switch switch over till the headset type of detection unit judges earphone interface with insertion matches.
4. headset type automatic identification equipment as claimed in claim 3, it is characterized in that, the first switch all Guan Bi and second switch that the original operating state of described regulating switch includes in two groups of switches are all opened, or, the second switch in two groups of switches all closes and the first switch is all opened.
5. headset type automatic identification equipment as claimed in claim 1, it is characterised in that described detection unit is provided with the comparator being connected with described MIC line, and described comparator is for determining the magnitude of voltage of signal on MIC line.
6. headset type automatic identification equipment as claimed in claim 5, it is characterised in that on the MIC line that described detection unit is determined according to described comparator, the magnitude of voltage size of signal is to judge whether described earphone interface matches with the headset type inserted; When on MIC line, the magnitude of voltage of signal is be more than or equal to 1.0V, then described earphone interface matches with the headset type of insertion; When on MIC line the magnitude of voltage of signal more than 0.2V less than 1.0V time, then the headset type of described earphone interface and insertion does not match that.
7. headset type automatic identification equipment as claimed in claim 6, it is characterised in that be additionally provided with HPL line, HPR line and DETECT line between described detection unit and described earphone interface.
8. headset type automatic identification equipment as claimed in claim 7, it is characterised in that described regulating switch one end is connected with described earphone interface, other end ground connection is also connected with described detection unit by MIC line.
9. the headset type automatic identification equipment as according to any one of claim 1-8, it is characterised in that described headset type includes the earphone that headset plug is CTIA standard and the earphone that headset plug is OMTP standard.
10. a headset type automatic identifying method, it is characterised in that comprise the following steps:
Insert an earphone into earphone interface;
Detection unit detects whether described earphone interface has earphone to insert and judge whether the headset type of described insertion matches with earphone interface;
Regulating switch controls, for the judged result according to described detection unit, the headset type that on signal and GND line, signal and described earphone interface insert on MIC line and matches.
11. headset type automatic identifying method as claimed in claim 10, it is characterised in that described regulating switch includes two groups of switches, often group switch all includes one first and switchs and one and the second switch of described first switch in parallel; Wherein, the first second switch switched in switching with second group in first group of switch is connected, and the second switch in first group of switch and the first switch in second group of switch are connected.
12. headset type automatic identifying method as claimed in claim 11, it is characterised in that when the headset type that the judged result of described detection unit is described earphone interface and insertion matches, described regulating switch keeps original operating state; When the headset type that the judged result of described detection unit is described earphone interface and insertion does not match that, described first switch and second switch switch over till the headset type of detection unit judges earphone interface with insertion matches.
13. headset type automatic identifying method as claimed in claim 12, it is characterized in that, the first switch all Guan Bi and second switch that the original operating state of described regulating switch includes in two groups of switches are all opened, or, the second switch in two groups of switches all closes and the first switch is all opened.
14. headset type automatic identifying method as claimed in claim 10, it is characterised in that described detection unit is provided with the comparator being connected with described MIC line, and described comparator is for determining the magnitude of voltage of signal on MIC line.
15. right wants the headset type automatic identifying method as described in 14, it is characterised in that on the MIC line that described detection unit is determined according to described comparator, the magnitude of voltage size of signal is to judge whether described earphone interface matches with the headset type inserted;When on MIC line, the magnitude of voltage of signal is be more than or equal to 1.0V, then described earphone interface matches with the headset type of insertion; When on MIC line the magnitude of voltage of signal more than 0.2V less than 1.0V time, then the headset type of described earphone interface and insertion does not match that.
16. headset type automatic identifying method as claimed in claim 15, it is characterised in that be additionally provided with HPL line, HPR line and DETECT line between described detection unit and described earphone interface.
17. headset type automatic identifying method as claimed in claim 16, it is characterised in that described regulating switch one end is connected with described earphone interface, other end ground connection is also connected with described detection unit by MIC line.
18. the headset type automatic identifying method as according to any one of claim 10-17, it is characterised in that described headset type includes the earphone that headset plug is CTIA standard and the earphone that headset plug is OMTP standard.
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| CN201410654990.0A CN105681995A (en) | 2014-11-17 | 2014-11-17 | Automatic earphone type identification device and method |
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| CN201410654990.0A CN105681995A (en) | 2014-11-17 | 2014-11-17 | Automatic earphone type identification device and method |
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| CN106207685B (en) * | 2016-07-22 | 2018-11-30 | 歌尔股份有限公司 | A kind of plug interconnecting device |
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| CN102300003A (en) * | 2011-09-20 | 2011-12-28 | 惠州Tcl移动通信有限公司 | Mobile terminal capable of automatically detecting earphone jack |
| CN202503656U (en) * | 2011-12-30 | 2012-10-24 | 惠州Tcl移动通信有限公司 | Device used for earphone microphone line sequence changing-over, and mobile terminal thereof |
| US20130216061A1 (en) * | 2012-02-20 | 2013-08-22 | Chi Mei Communication Systems, Inc. | Electronic device and method for enabling open mobile terminal platform headsets and standard headsets to be compatible |
| CN202634659U (en) * | 2012-05-23 | 2012-12-26 | 东莞宇龙通信科技有限公司 | Earphone interface self-adaptive circuit and mobile terminal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106207685B (en) * | 2016-07-22 | 2018-11-30 | 歌尔股份有限公司 | A kind of plug interconnecting device |
| CN107071650A (en) * | 2017-06-26 | 2017-08-18 | 深圳天珑无线科技有限公司 | Earphone detection circuit, method and terminal |
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Application publication date: 20160615 Assignee: Shanghai Li Ke Semiconductor Technology Co., Ltd. Assignor: Leadcore Technology Co., Ltd. Contract record no.: 2018990000159 Denomination of invention: Automatic earphone type identification device and method License type: Common License Record date: 20180615 |
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Application publication date: 20160615 |