CN102395069A - Method for being compatible with earphones with different plug types, apparatus and terminal equipment - Google Patents

Method for being compatible with earphones with different plug types, apparatus and terminal equipment Download PDF

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Publication number
CN102395069A
CN102395069A CN2011102413838A CN201110241383A CN102395069A CN 102395069 A CN102395069 A CN 102395069A CN 2011102413838 A CN2011102413838 A CN 2011102413838A CN 201110241383 A CN201110241383 A CN 201110241383A CN 102395069 A CN102395069 A CN 102395069A
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section
terminal equipment
control signal
voltage
headset plug
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CN2011102413838A
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Chinese (zh)
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江克俊
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Huawei Device Co Ltd
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Huawei Device Co Ltd
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Abstract

The embodiment of the invention provides a method for being compatible with earphones with different plug types, an apparatus and terminal equipment. The earphone compatible apparatus comprises: a control unit, which is used for obtaining earphone plug type information and generating a control signal according to the plug type information; a switching unit, which is used for enabling all segments that are in an earphone jack of terminal equipment are respectively electrically connected with all segments of the earphone plug to be electrically connected to a corresponded line in the terminal equipment according to the control signal generated by the control unit. Besides, all the segments of the earphone plug comprises a left channel segment, a right channel segment, a signal loop segment and a transmitter segment. According to the method for being compatible with earphones with different plug types, the apparatus and the terminal equipment in the invention, it is realized that the terminal equipment is capable of being compatible with earphone plugs with various types, so that using of different earphone plugs will not be restricted.

Description

The method, device and the terminal equipment that are used for the earphone of compatible different type of plug
Technical field
The present invention relates to communication technical field, particularly a kind of method, device and terminal equipment that is used for the earphone of compatible different type of plug.
Background technology
The headset plug of the daily employed band Mike function of people is generally the plug of four-part form, and is as shown in Figure 1: be followed successively by P1 section, P2 section, P3 section and P4 section from headset plug end to tip.These four sections comprise: L channel section (L), R channel section (R), signal circuit section (G) and transmitter section (M), and wherein, the L channel section is connected with L channel circuit in the terminal equipment, is used for the audio signal of the output of transmission terminal equipment L channel; The R channel section is connected with R channel circuit in the terminal equipment, is used for the audio signal of transmission terminal equipment R channel output; The signal circuit section is connected with the signal circuit circuit of terminal equipment, is used for ground connection; The transmitter section is connected with the transmitter circuit of terminal equipment, is used for to the terminal equipment input audio signal.
General headset plug comprises Fig. 2~four kinds of line preface structures shown in Figure 5 at present, headset plug line preface shown in Figure 2, and P1 section, P2 section, P3 section and P4 section are followed successively by: G, M, R and L; Headset plug line preface shown in Figure 3, P1 section, P2 section, P3 section and P4 section are followed successively by M, G, R and L; Headset plug line preface shown in Figure 4, P1 section, P2 section, P3 section and P4 section are followed successively by G, L, R and M; Headset plug line preface shown in Figure 5, P1 section, P2 section, P3 section and P4 section are followed successively by M, L, R and G; The headset plug of these four kinds of standards, its apparent size is roughly the same.
In the prior art, when the earphone jack interface standard of terminal equipments such as mobile phone does not conform to the headset plug standard, earphone can't normally use, and make terminal equipment not possess versatility.
Summary of the invention
The embodiment of the invention provides a kind of method, device and terminal equipment that is used for the earphone of compatible different type of plug; When not conforming to the headset plug standard with the earphone jack interface standard that solves terminal equipment in the prior art, the problem that earphone can't normally use.
The embodiment of the invention provides a kind of earphone compatible device, comprising:
Control unit is used to obtain the headset plug type information, and according to said type of plug information generating control signal;
Switch unit is used for the control signal that produces according to said control unit, in the earphone jack with terminal equipment, is used for respectively each section that each section with headset plug is electrically connected, and is electrically connected on the circuit of correspondence in the said terminal equipment;
Wherein, each section of said headset plug comprises: L channel section, R channel section, signal circuit section and transmitter section.
The embodiment of the invention also provides a kind of terminal equipment, comprising: earphone jack and earphone compatible device; Said earphone compatible device comprises:
Control unit is used to obtain the headset plug type information, and according to said type of plug information generating control signal;
Switch unit is used for the control signal that produces according to said control unit, in the earphone jack with terminal equipment, is used for respectively each section that each section with headset plug is electrically connected, and is electrically connected on the circuit of correspondence in the said terminal equipment;
Wherein, each section of said headset plug comprises: L channel section, R channel section, signal circuit section and transmitter section.
The embodiment of the invention also provides a kind of method that is used for the earphone of compatible different type of plug, comprising:
Obtain the headset plug type information, and according to said type of plug information generating control signal;
According to said control signal; In the earphone jack with terminal equipment; Be used for respectively each section that each section with headset plug is electrically connected; Be electrically connected in the said terminal equipment on the corresponding circuit, wherein, each of said headset plug section comprises: L channel section, R channel section, signal circuit section and transmitter section.
Method, device and the terminal equipment of the earphone that is used for compatible different type of plug that the embodiment of the invention provides; Through the headset plug type of inserting according to the terminal equipment earphone jack; In the earphone jack with terminal equipment; Be used for respectively with headset plug on each section of being electrically connected of each section, be electrically connected on the circuit corresponding in the terminal equipment.Realize that terminal equipment can compatible polytype headset plug, it is unrestricted that different headset plugs is used.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of existing four-part form headset plug;
Fig. 2 is the line preface structural representation of existing a kind of four-part form headset plug;
Fig. 3 is the line preface structural representation of existing another kind of four-part form headset plug;
Fig. 4 is the line preface structural representation of existing another four-part form headset plug;
Fig. 5 is the line preface structural representation of existing another four-part form headset plug;
Fig. 6 is the structural representation of an embodiment of earphone compatible device provided by the invention;
Fig. 7 is the structural representation of another embodiment of earphone compatible device provided by the invention;
The structural representation of switch unit in the earphone compatible device that Fig. 8 provides for the embodiment of the invention;
Fig. 9 is the equivalent circuit diagram of headset plug;
Figure 10 is the structural representation of an embodiment of terminal equipment provided by the invention;
Figure 11 is the flow chart of an embodiment of method of the earphone that is used for compatible different type of plug provided by the invention;
Figure 12 is the flow chart of another embodiment of method of the earphone that is used for compatible different type of plug provided by the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Fig. 6 is the structural representation of an embodiment of earphone compatible device provided by the invention, and is as shown in Figure 6, and this earphone compatible device comprises: control unit 11 and switch unit 12;
Control unit 11 is used to obtain the headset plug type information, and according to this type of plug information generating control signal;
Switch unit 12 is used for the control signal that produces according to control unit 11, in the earphone jack with terminal equipment, is used for respectively each section that each section with headset plug is electrically connected, and is electrically connected on the circuit of correspondence in the terminal equipment;
Wherein, each section of headset plug comprises: L channel section, R channel section, signal circuit section and transmitter section.
The earphone compatible device that the embodiment of the invention provides is applicable to multiple terminal equipments such as portable terminal, MP3, MP4.
Wherein, Control unit 11 can be connected with the software module on being arranged on terminal equipment; For example: software modules such as menu option connect; Can four options be set according to Fig. 2~headset plug type shown in Figure 5 on this menu option; The user can select a certain headset plug type option according to the headset plug type of using on software modules such as menu option, control unit 11 can obtain the headset plug type information that the user selects in menu option, and produces control signal corresponding according to the headset plug type information that the user selects.
Control unit 11 can also be connected with the parts such as toggle switch on being arranged on terminal equipment; Similarly; These toggle switch parts also can be provided with four gears according to Fig. 2~headset plug type shown in Figure 5; The user can push corresponding gear with toggle switch according to the headset plug type of using, and control unit 11 can obtain the headset plug type information according to the gear that the user selects, and produces control signal corresponding according to the headset plug type information that the user selects.
As another embodiment of the invention; Control unit 11 can also be according to the difference of resistance value between the different sections in the headset plug; After in earphone jack, inserting headset plug; Resistance value between each section in the earphone jack is detected, judge which section in the corresponding headset plug of each section difference in the earphone jack according to testing result, thereby produce control signal corresponding according to testing result.
Switch unit 12 can be connected with the earphone jack in the terminal equipment; Commutation circuit in the switch unit 12 can be made up of switch or logic element; The control signal that switch unit 12 produces according to control unit 11; In earphone jack, be used for respectively each section that each section with headset plug is electrically connected, be electrically connected on the circuit corresponding in the terminal equipment.Wherein, each section of headset plug comprises: L channel section (L), R channel section (R), signal circuit section (G) and transmitter section (M).Switch unit 12 is used for the control signal according to control unit 11 generations; In earphone jack; Each section with each section in the above-mentioned headset plug is electrically connected is connected electrically to respectively on L channel circuit, R channel circuit, signal circuit circuit and the transmitter circuit on the terminal equipment.
The earphone compatible device that the embodiment of the invention provides; Through the headset plug type of inserting according to the terminal equipment earphone jack; In the earphone jack with terminal equipment, be used for respectively with headset plug on each section of being electrically connected of each section, be electrically connected on the circuit corresponding in the terminal equipment.Realize that terminal equipment can compatible polytype headset plug, it is unrestricted that different headset plugs is used.
Fig. 7 is the structural representation of another embodiment of earphone compatible device provided by the invention, and is as shown in Figure 7, in the earphone compatible device that present embodiment provides; Control unit 11 is according to the difference of resistance value between the different sections in the headset plug; The headset plug type of inserting in the earphone jack detects, and generates control signal according to testing result, exports to switch unit 12; The control signal that switch unit 12 produces according to control unit 11; In the earphone jack with terminal equipment, be used for respectively each section that each section with headset plug is electrically connected, be electrically connected on the circuit corresponding in the terminal equipment.
In the earphone compatible device that present embodiment provides, in the earphone jack, be used for respectively each section that each section with headset plug is electrically connected, be respectively the P1 section from inside to outside, P2 section, P3 section and P4 section.Because the headset plug of common band Mike function mainly comprises four types of Fig. 2-Fig. 5 in the market, and in these four types, is the R channel section with the corresponding position of earphone jack P3 section.Therefore, in the present embodiment, be connected to example with the R channel circuit in earphone jack P3 section and the terminal equipment and describe.
Control unit 11 can comprise: control module 111, switch module 112 and detection module 113;
Control module 111; When being used for detecting earphone jack and having headset plug to insert; Control switch module 112 is respectively with P1 section, P2 section and the P4 section ground connection of earphone jack; And when the P1 of earphone jack section, P2 section and P4 section ground connection, control detection module 113 detects voltage V1, V2 and the V3 of P3 section respectively, and generate first control signal, second control signal and the 3rd control signal respectively according to detection module 113 detected V1, V2 and V3;
Wherein, first control signal, second control signal and the 3rd control signal are confirmed according to the magnitude relationship of V1, V2 and V3, are respectively applied for P1 section, P2 section and the P4 section of control earphone jack;
Switch module 112 is used under the control of control module 111, respectively with P1 section, P2 section and the P4 section ground connection of earphone jack;
Detection module 113 comprises a pull-up resistor RT, and the end of this pull-up resistor RT is connected with the P3 section, and the other end is connected with the power supply VCC of terminal equipment; Detection module 113 is used under the control of control module 111, detects voltage V1, V2 and the V3 of P3 section respectively.
Accordingly; Switch unit 12 can specifically be used for: according to the V1 of first control signal, second control signal and the 3rd control signal representative, the magnitude relationship of V2 and V3 is with the P1 section; The P2 section, in the P4 section first section with terminal equipment in the transmitter circuit be electrically connected; With the P1 section, the P2 section, in the P4 section second section with terminal equipment in the signal circuit circuit be electrically connected; With the P1 section, the P2 section, in the P4 section the 3rd section with terminal equipment in the L channel circuit be electrically connected;
Wherein, during first section ground connection, the voltage of detection module 113 detected P3 sections is voltage V1, the voltage of maximum among V2 and the V3; During second section ground connection, the voltage of detection module 113 detected P3 is voltage V1, the voltage of minimum among V2 and the V3; During the 3rd section ground connection, the voltage of detection module 113 detected P3 is voltage V1, voltage placed in the middle among V2 and the V3.
Switch unit 12 can be connected with the earphone jack in the terminal equipment, and the commutation circuit in the switch unit 12 can be made up of switch, logic element, also can adopt various integrated chips to realize.
As shown in Figure 8, in one embodiment of the invention, switch unit 12 can specifically comprise:
First input interface 121 is used for being connected with the section of P1 described in the earphone jack;
Second input interface 122 is used for being connected with the section of P2 described in the earphone jack;
The 3rd input interface 123 is used for being connected with the said P4 section of earphone jack;
First output interface 124 is used for being connected with the signal circuit circuit of terminal equipment;
Second output interface 125 is used for being connected with the transmitter circuit of terminal equipment;
The 3rd output interface 126 is used for being connected with the L channel circuit of terminal equipment;
Selected cell 127; Be used for the control signal that produces according to control unit 11, with first input interface 121, second input interface 122 and the 3rd input interface 123 respectively with first output interface 124, second output interface 125 and the 3rd output interface 126 in corresponding output interface be connected.
Can find out from Fig. 2~Fig. 5, in the four types at present common headset plug, after the insertion earphone jack; The R channel section of the equal corresponding headset plug of P3 section of earphone jack; And in the headset plug, the R channel section is different to the resistance of L channel section, signal circuit section and transmitter section, therefore; As shown in Figure 9, can draw R channel section (R) in the headset plug to the equivalent circuit diagram of L channel section (L section), signal circuit section (G section) and transmitter section (M section):
If on the R of headset plug section, draw a fixed value resistance RT (resistance is tens ohm); The R section has connected a Re resistance to equivalence between the G section; The R section has connected two Re resistance to equivalence between the L section, and the R section has connected a Re resistance to equivalence between the M section and added a Rm resistance.Wherein, Re representes headset plug R section or L section resistance to earth, and the Re resistance is smaller, usually hundreds of ohm, tens ohm even several ohm; Rm representes M section resistance to earth, and the resistance of Rm resistance is very big, usually more than hundreds of K ohm.Can find out big many of the resistance of the resistance value ratio Re of Rm and the resistance of RT.
When the G of headset plug section ground connection, the magnitude of voltage of R section is: VCC*Re/ (Re+RT); When the L of headset plug section ground connection, the magnitude of voltage of R section is: VCC* (Re+Re)/(Re+Re+RT) is: VCC*2*Re/ (2*Re+RT); When the M of headset plug section ground connection, the magnitude of voltage of R section is: VCC* (Re+Rm)/(Re+Rm+RT).Can draw through calculating: when the G of headset plug section ground connection; The magnitude of voltage of detected R section is minimum, and when the M of headset plug section ground connection, the magnitude of voltage of detected R is maximum; When the L of headset plug section ground connection, the magnitude of voltage of detected R section is between the two.In view of the above, can on the P3 of earphone jack section, draw the power supply VCC of a fixed value resistance RT (resistance is tens ohm) to terminal equipment.When inserting headset plug in the earphone jack; Control module 111 can control switch module 112 successively with P1 section, P2 section and the P4 section ground connection of earphone jack, and magnitude of voltage V1, V2 and the V3 of control detection module 113 P3 section when detecting P1 section, P2 section and P4 section ground connection respectively.
Particularly, when the structure of control unit 11 was as shown in Figure 7, control module 111 can generate first control signal respectively, second control signal and the 3rd control signal according to detection module 113 detected voltage V1, V2 and V3.Wherein, first control signal, second control signal and the 3rd control signal can be confirmed according to the magnitude relationship of V1, V2 and V3, be respectively applied for P1 section, P2 section and the P4 section of control earphone jack.
For example: the maximum corresponding control signal of voltage of numerical value can adopt " 10 " expression among V1, V2 and the V3; The minimum corresponding control signal of voltage of numerical value can adopt " 00 " expression among V1, V2 and the V3, and the control signal that the voltage among V1, V2 and the V3 in the numerical value play is corresponding can adopt " 01 " expression; Can also be; The maximum corresponding control signal of voltage of numerical value can adopt " 00 " expression among V1, V2 and the V3; The minimum corresponding control signal of voltage of numerical value can adopt " 10 " expression among V1, V2 and the V3, and the control signal that the voltage among V1, V2 and the V3 in the numerical value play is corresponding can adopt " 01 " expression.
Below only with two example shows first control signals; Two kinds of feasible manifestation modes of second control signal and the 3rd control signal; But not as limit; First control signal, second control signal and the 3rd control signal can also adopt other the form of expression to embody the magnitude relationship of V1, V2 and V3.
Selected cell 127 is according to first control signal of control module 111 output, and second control signal and the 3rd control signal are controlled first input interface 121, second input interface 122 and the 3rd input interface 123 respectively and be connected to corresponding output interface.For example: first control signal that is used to control earphone jack P1 section is " 11 "; And V1 is represented in " 11 "; The maximum voltage of numerical value among V2 and the V3, then selected cell 127 is electrically connected the P1 section of the earphone jack of first input interface, 121 correspondences and the transmitter circuit in the terminal equipment; The 3rd control signal that is used to control earphone jack P4 section is " 00 "; And V1 is represented in " 00 "; The minimum voltage of numerical value among V2 and the V3, then selected cell 127 is electrically connected the P4 section of the earphone jack of the 3rd input interface 123 correspondences and the signal circuit circuit in the terminal equipment; Second control signal that is used to control earphone jack P2 section is " 10 "; And V1 is represented in " 10 "; Numerical value voltage placed in the middle among V2 and the V3, then selected cell 127 is electrically connected the P2 section of the earphone jack of second input interface, 122 correspondences and the L channel circuit in the terminal equipment.
Wherein, control unit 11 can be circuit independently, specifically can also can realize the function of control unit 11 through the CPU in the terminal equipment (Central Processing Unit) by realizations such as logical block or chips.If control unit 11 adopts the CPU in the terminal equipment to realize its function, when then in earphone jack, inserting earphone, CPU can detect an interrupt signal, thus trigger switch module 112 and detection module 113 work.If control unit 11 adopts other logical blocks or chip to realize, can also judge whether that then headset plug inserts through the change in resistance that detects each section in the earphone jack.In the embodiment of the invention, whether in earphone jack have the whole bag of tricks that headset plug insert can just have prior art provide, do not give unnecessary details one by one at this if detecting.
Provided a kind of concrete structure of switch unit 12 in the present embodiment, when detection module 113 detected, first input interface 121 in the switch unit 12, second input interface 122 can not be connected with any output interface with the 3rd input interface 123.In the process that detection module 113 detects; Switch module 112 is under the control of control module 111; Successively with the P1 section in the earphone jack, P2 section and P4 section ground connection; Detection module 113 is under the control of control module 111; The magnitude of voltage V1 of P3 section when detecting P1 section ground connection respectively, the magnitude of voltage V3 of P3 section when the magnitude of voltage V2 of P3 section and P4 section ground connection during P2 section ground connection; And according to the magnitude relationship of V1, V2 and V3; Corresponding respectively first control signal, second control signal and the 3rd control signal of generating exported to the selected cell 127 in the switch unit 12, the numerical values recited relation of V1, V2 and V3 that selected cell 127 can be represented according to first control signal, second control signal and the 3rd control signal, and second output interface 125 of the transmitter circuit in the corresponding input interface of the control signal that representative voltage numerical value is maximum and the connecting terminal equipment is connected; First output interface 124 of the signal circuit circuit in the corresponding input interface of the control signal that representative voltage numerical value is minimum and the connecting terminal equipment is connected; The 3rd output interface 126 of the L channel circuit in the input interface that the control signal in the play of representative voltage numerical value is corresponding and the connecting terminal equipment is connected.
The present invention also provides the embodiment of an earphone compatible device:
Can software module be set on terminal equipment, for example: " the custom menu option " in the mobile phone can be provided with four option Type1, Type2, Type3 and Type4 according to Fig. 2~headset plug type shown in Figure 5 on this menu option.When the user selected different menu options, control unit 11 can produce the Different control signal.For example: in the time of the user can be set select Type1, control unit 11 receives user's selection signals, and generates control signal " 00 " according to user's selection signals; When the user selected Type2, control unit 11 received user's selection signals, and generates control signal " 01 " according to user's selection signals; When the user selected Type3, control unit 11 received user's selection signals, and generates control signal " 10 " according to user's selection signals; When the user selected Type4, control unit 11 received user's selection signals, and generates control signal " 11 " according to user's selection signals.The control signal that switch unit 12 can produce according to control unit 11, what confirm that the user selects is the headset plug of type in which, thereby each section in the earphone jack and respective lines in the terminal equipment are electrically connected.
Can also be on terminal equipment; For example: toggle switch is set on phone housing; Toggle switch also can be provided with four gears according to Fig. 2~headset plug type shown in Figure 5, and the user can select Fig. 2~headset plug type shown in Figure 5 through this toggle switch.When rotary switch is selected different gear; Control unit 11 produces the Different control signal according to the different gears of rotary switch; Switch unit 12 is according to the Different control signal; What confirm that the user selects is the headset plug of type in which, thereby each section in the earphone jack and respective lines in the terminal equipment are electrically connected.
Figure 10 is the structural representation of an embodiment of terminal equipment provided by the invention, and is shown in figure 10, and this portable terminal comprises: earphone jack 1 and earphone compatible device 2; Wherein, earphone compatible device 1 comprises: control unit and switch unit; Wherein:
Control unit is used to obtain the headset plug type information, and according to type of plug information generating control signal;
Switch unit; Be used for control signal according to the control unit generation; In the earphone jack 1 with terminal equipment, be used for respectively each section that each section with headset plug is electrically connected, be electrically connected on the circuit corresponding in the terminal equipment; Wherein, each section of headset plug comprises: L channel section, R channel section, signal circuit section and transmitter section.
Among another embodiment of terminal equipment provided by the invention, in the earphone jack 1, be used for respectively each section that each section with headset plug is electrically connected, be respectively the P1 section from inside to outside, P2 section, P3 section and P4 section; The P3 section is connected with R channel circuit in the terminal equipment.
Further, control unit can comprise:
Control module; When being used for detecting earphone jack 1 and having headset plug to insert; The control switch module is respectively with P1 section, P2 section and the P4 section ground connection of earphone jack 1; And when the P1 of earphone jack 1 section, P2 section and P4 section ground connection, the control detection module detects voltage V1, V2 and the V3 of P3 section respectively, and generates first control signal, second control signal and the 3rd control signal respectively according to the detected V1 of detection module, V2 and V3;
Wherein, first control signal, second control signal and the 3rd control signal are confirmed according to the magnitude relationship of V1, V2 and V3, are respectively applied for P1 section, P2 section and the P4 section of control earphone jack 1;
Switch module is used under the control of control module, respectively with P1 section, P2 section and the P4 section ground connection of earphone jack 1;
Detection module comprises a pull-up resistor, and an end of this pull-up resistor is connected with the P3 section, and the other end is connected with the power supply of terminal equipment; Detection module is used under the control of control module, detects voltage V1, V2 and the V3 of P3 section respectively.
Switch unit specifically is used for: according to the V1 of first control signal, second control signal and the 3rd control signal representative, the magnitude relationship of V2 and V3, with the P1 section, the P2 section, in the P4 section first section with terminal equipment in the transmitter circuit be electrically connected; With the P1 section, the P2 section, in the P4 section second section with terminal equipment in the signal circuit circuit be electrically connected; With the P1 section, the P2 section, in the P4 section the 3rd section with terminal equipment in the L channel circuit be electrically connected;
Wherein, during first section ground connection, the voltage of the detected P3 section of detection module is voltage V1, the voltage of maximum among V2 and the V3; During second section ground connection, the voltage of the detected P3 of detection module is voltage V1, the voltage of minimum among V2 and the V3; During the 3rd section ground connection, the voltage of the detected P3 of detection module is voltage V1, voltage placed in the middle among V2 and the V3.
Further, terminal equipment can also comprise: software module or toggle switch;
Control unit also is used for: the information according to the user imports on software module is obtained the headset plug type information, perhaps obtains the headset plug type information according to the gear of dialling rotary switch, and produces control signal according to the headset plug type information.
Wherein, control unit can be the central processing unit CPU in the terminal equipment.The GPI01 pin of CPU can be connected with P3 section in the earphone jack 1; The GPI02 pin of CPU can be connected with switch unit; Detect the interrupt signal of earphone jack 1 as CPU; When then reading P1 section ground connection successively, during P2 section ground connection and during P4 section ground connection; Voltage value V1, V2 and V3 on the P3 section, and produce first control signal, second control signal and the 3rd control signal according to voltage value V1, V2 and V3 respectively, export to switch unit 12 through the GPI02 pin; Switch unit 12 is connected to the corresponding line on the terminal equipment according to the magnitude relationship of V1, V2 and the V3 of first control signal, second control signal and the representative of the 3rd control signal with the P1 section in the earphone jack 1, P2 section and P4.
The terminal equipment that present embodiment provides; Its earphone compatible device part specifically can be referring to Fig. 6~Fig. 9, in addition, the terminal equipment that present embodiment provides; Its detailed process that realizes the earphone compatible function can repeat no more at this referring to the description of earphone compatible device embodiment.
The terminal equipment that the embodiment of the invention provides; The earphone compatible device that is provided with on it; Through the headset plug type of inserting according to the terminal equipment earphone jack; In the earphone jack with terminal equipment, be used for respectively with headset plug on each section of being electrically connected of each section, be electrically connected on the circuit corresponding in the terminal equipment.Realize that terminal equipment can compatible polytype headset plug, it is unrestricted that different headset plugs is used.
Figure 11 is the flow chart of an embodiment of method of the earphone that is used for compatible different type of plug provided by the invention, and shown in figure 11, this method comprises:
S101, obtain the headset plug type information, and according to type of plug information generating control signal;
S102, according to control signal; In the earphone jack with terminal equipment; Be used for respectively each section that each section with headset plug is electrically connected; Be electrically connected in the terminal equipment on the corresponding circuit, wherein, each of headset plug section comprises: L channel section, R channel section, signal circuit section and transmitter section.
The method of the earphone that is used for compatible different type of plug that the embodiment of the invention provides is applicable to that multiple terminal equipments such as portable terminal, MP3, MP4 are carried out earphone compatible to be handled.
The method of the earphone that is used for compatible different type of plug that present embodiment provides specifically can realize through the earphone compatible device that is electrically connected with headset plug is set on terminal equipment.
A kind of feasible pattern of present embodiment; This earphone compatible device can confirm to insert the headset plug type of earphone jack according to the information of user's input on the software module on the terminal equipment; Software module for example specifically can be: software modules such as menu option; Can four options be set according to Fig. 2~headset plug type shown in Figure 5 on this menu option; The user can select a certain headset plug type option according to the headset plug type of using on software modules such as menu option; The earphone compatible device can obtain the headset plug type information that the user selects in menu option, and produces control signal corresponding according to the headset plug type information that the user selects.
The another kind of feasible pattern of present embodiment, the earphone compatible device can also obtain the headset plug type information that the user selects through the parts such as toggle switch on the terminal equipment (these toggle switch parts also can be provided with four gears according to Fig. 2~headset plug type shown in Figure 5).The user can push corresponding gear with toggle switch according to the headset plug type of using; The earphone compatible device can obtain the headset plug type information according to the gear that the user selects, and produces control signal corresponding according to the headset plug type information that the user selects.
As another embodiment of the invention; The earphone compatible device can also be according to the difference of resistance value between the different sections in the headset plug; After in earphone jack, inserting headset plug; Resistance value between each section in the earphone jack is detected, judge which section in the corresponding headset plug of each section difference in the earphone jack according to testing result, thereby produce control signal corresponding according to testing result.
After producing control signal; The earphone compatible device can be according to control signal; With in the earphone jack with above-mentioned headset plug in each section of being electrically connected of each section, be connected electrically to respectively on L channel circuit, R channel circuit, signal circuit circuit and the transmitter circuit on the terminal equipment.
The method of the earphone that is used for compatible different type of plug that the embodiment of the invention provides; Through the headset plug type of inserting according to the terminal equipment earphone jack; In the earphone jack with terminal equipment; Be used for respectively with headset plug on each section of being electrically connected of each section, be electrically connected on the circuit corresponding in the terminal equipment.Realize that terminal equipment can compatible polytype headset plug, it is unrestricted that different headset plugs is used.
Figure 12 is the flow chart of another embodiment of method of the earphone that is used for compatible different type of plug provided by the invention, and shown in figure 12, this method comprises:
S201, when P1 section ground connection, detect the magnitude of voltage V1 of P3 section; When P2 section ground connection, detect the magnitude of voltage V2 of P3 section; When P4 section ground connection, detect the magnitude of voltage V3 of P3 section; And generate first control signal, second control signal and the 3rd control signal respectively according to V1, V2 and V3; Wherein, First control signal, second control signal and the 3rd control signal are confirmed according to the magnitude relationship of V1, V2 and V3, are respectively applied for P1 section, P2 section and the P4 section of control earphone jack;
Wherein, in the earphone jack, be used for respectively each section that each section with headset plug is electrically connected, be respectively the P1 section from inside to outside, P2 section, P3 section and P4 section; The P3 section is connected with R channel circuit in the terminal equipment, and the P3 section is connected with the power supply of terminal equipment through a pull-up resistor.
S202, according to the V1 of first control signal, second control signal and the 3rd control signal representative, the magnitude relationship of V2 and V3, with the P1 section, the P2 section, in the P4 section first section with terminal equipment in the transmitter circuit be electrically connected; With the P1 section, the P2 section, in the P4 section second section with terminal equipment in the signal circuit circuit be electrically connected; With the P1 section, the P2 section, in the P4 section the 3rd section with terminal equipment in the L channel circuit be electrically connected, wherein, during first section ground connection, the voltage of the detected P3 section of detection module is voltage V1, maximum voltage among V2 and the V3; During second section ground connection, the voltage of the detected P3 of detection module is voltage V1, the voltage of minimum among V2 and the V3; During the 3rd section ground connection, the voltage of the detected P3 of detection module is voltage V1, voltage placed in the middle among V2 and the V3.
The method of the earphone that is used for compatible different type of plug that the embodiment of the invention provides; Can be integrated on the hardware circuit and realize; Maybe can realize through the software in the terminal equipment; Its concrete implementation procedure can repeat no more at this referring to the embodiment of aforesaid earphone compatible device embodiment and terminal equipment.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method; Be to instruct relevant hardware to accomplish through computer program; Program can be stored in the computer read/write memory medium; This program can comprise the flow process like the embodiment of above-mentioned each side method when carrying out.Wherein, storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.

Claims (15)

1. an earphone compatible device is characterized in that, comprising:
Control unit is used to obtain the headset plug type information, and according to said type of plug information generating control signal;
Switch unit is used for the control signal that produces according to said control unit, in the earphone jack with terminal equipment, is used for respectively each section that each section with headset plug is electrically connected, and is electrically connected on the circuit of correspondence in the said terminal equipment;
Wherein, each section of said headset plug comprises: L channel section, R channel section, signal circuit section and transmitter section.
2. earphone compatible device according to claim 1 is characterized in that, in the said earphone jack, is used for respectively each section that each section with headset plug is electrically connected, and is respectively the P1 section from inside to outside, P2 section, P3 section and P4 section; Said P3 section is connected with said R channel circuit in the said terminal equipment.
3. earphone compatible device according to claim 2 is characterized in that, said control unit comprises:
Control module; When being used for detecting said earphone jack and having headset plug to insert; Control said switch module respectively with P1 section, P2 section and the P4 section ground connection of said earphone jack; And when the P1 of said earphone jack section, P2 section and P4 section ground connection, the control detection module detects voltage V1, V2 and the V3 of P3 section respectively, and generates first control signal, second control signal and the 3rd control signal respectively according to the detected V1 of said detection module, V2 and V3;
Wherein, said first control signal, said second control signal and said the 3rd control signal are confirmed according to the magnitude relationship of said V1, V2 and V3, are respectively applied for P1 section, P2 section and the P4 section of the said earphone jack of control;
Switch module is used under the control of said control module, respectively with P1 section, P2 section and the P4 section ground connection of said earphone jack;
Detection module comprises a pull-up resistor, and an end of this pull-up resistor is connected with said P3 section, and the other end is connected with the power supply of said terminal equipment; Said detection module is used under the control of said control module, detects voltage V1, V2 and the V3 of said P3 section respectively.
4. earphone compatible device according to claim 3; It is characterized in that; Said switch unit specifically is used for: according to the said V1 of said first control signal, said second control signal and said the 3rd control signal representative, the magnitude relationship of V2 and V3 is with said P1 section; The P2 section, in the P4 section first section with said terminal equipment in said transmitter circuit be electrically connected; With said P1 section, the P2 section, in the P4 section second section with said terminal equipment in said signal circuit circuit be electrically connected; With said P1 section, the P2 section, in the P4 section the 3rd section with said terminal equipment in said L channel circuit be electrically connected;
Wherein, during said first section ground connection, the voltage of the detected P3 section of said detection module is said voltage V1, maximum voltage among V2 and the V3; During said second section ground connection, the voltage of the detected P3 of said detection module is said voltage V1, minimum voltage among V2 and the V3; During said the 3rd section ground connection, the voltage of the detected P3 of said detection module is said voltage V1, voltage placed in the middle among V2 and the V3.
5. according to each described earphone compatible device of claim 2-4, it is characterized in that said switch unit comprises:
First input interface is used for being connected with the section of P1 described in the earphone jack;
Second input interface is used for being connected with the section of P2 described in the earphone jack;
The 3rd input interface is used for being connected with the said P4 section of earphone jack;
First output interface is used for being connected with the signal circuit circuit of said terminal equipment;
Second output interface is used for being connected with the transmitter circuit of said terminal equipment;
The 3rd output interface is used for being connected with the L channel circuit of said terminal equipment;
Selected cell; Be used for the said control signal that produces according to said control unit, with said first input interface, said second input interface and said the 3rd input interface respectively with said first output interface, said second output interface and said the 3rd output interface in corresponding output interface be connected.
6. earphone compatible device according to claim 1; It is characterized in that; Said control unit specifically is used for: the user according to said terminal equipment obtains said headset plug type information through the information of software module input, and produces said control signal according to said headset plug type information.
7. earphone compatible device according to claim 1; It is characterized in that; Said control unit specifically is used for: the gear of dialling rotary switch according to said terminal equipment obtains said headset plug type information, and produces said control signal according to said headset plug type information.
8. a terminal equipment is characterized in that, comprising: earphone jack and earphone compatible device; Said earphone compatible device comprises:
Control unit is used to obtain the headset plug type information, and according to said type of plug information generating control signal;
Switch unit is used for the control signal that produces according to said control unit, in the earphone jack with terminal equipment, is used for respectively each section that each section with headset plug is electrically connected, and is electrically connected on the circuit of correspondence in the said terminal equipment;
Wherein, each section of said headset plug comprises: L channel section, R channel section, signal circuit section and transmitter section.
9. terminal equipment according to claim 8 is characterized in that, in the said earphone jack, is used for respectively each section that each section with headset plug is electrically connected, and is respectively the P1 section from inside to outside, P2 section, P3 section and P4 section; Said P3 section is connected with said R channel circuit in the said terminal equipment.
10. terminal equipment according to claim 9 is characterized in that, said control unit comprises:
Control module; When being used for detecting said earphone jack and having headset plug to insert; Control said switch module respectively with P1 section, P2 section and the P4 section ground connection of said earphone jack; And when the P1 of said earphone jack section, P2 section and P4 section ground connection, the control detection module detects voltage V1, V2 and the V3 of P3 section respectively, and generates first control signal, second control signal and the 3rd control signal respectively according to the detected V1 of said detection module, V2 and V3;
Wherein, said first control signal, said second control signal and said the 3rd control signal are confirmed according to the magnitude relationship of said V1, V2 and V3, are respectively applied for P1 section, P2 section and the P4 section of the said earphone jack of control;
Switch module is used under the control of said control module, respectively with P1 section, P2 section and the P4 section ground connection of said earphone jack;
Detection module comprises a pull-up resistor, and an end of this pull-up resistor is connected with said P3 section, and the other end is connected with the power supply of said terminal equipment; Said detection module is used under the control of said control module, detects voltage V1, V2 and the V3 of said P3 section respectively.
11. headphone terminal equipment according to claim 10; It is characterized in that; Said switch unit specifically is used for: according to the said V1 of said first control signal, said second control signal and said the 3rd control signal representative, the magnitude relationship of V2 and V3 is with said P1 section; The P2 section, in the P4 section first section with said terminal equipment in said transmitter circuit be electrically connected; With said P1 section, the P2 section, in the P4 section second section with said terminal equipment in said signal circuit circuit be electrically connected; With said P1 section, the P2 section, in the P4 section the 3rd section with said terminal equipment in said L channel circuit be electrically connected;
Wherein, during said first section ground connection, the voltage of the detected P3 section of said detection module is said voltage V1, maximum voltage among V2 and the V3; During said second section ground connection, the voltage of the detected P3 of said detection module is said voltage V1, minimum voltage among V2 and the V3; During said the 3rd section ground connection, the voltage of the detected P3 of said detection module is said voltage V1, voltage placed in the middle among V2 and the V3.
12. terminal equipment according to claim 8 is characterized in that, said terminal equipment also comprises: software module or toggle switch;
Said control unit also is used for: the information according to the user imports on said software module is obtained said headset plug type information; Perhaps obtain said headset plug type information, and produce said control signal according to said headset plug type information according to the gear of dialling rotary switch.
13. a method that is used for the earphone of compatible different type of plug is characterized in that, comprising:
Obtain the headset plug type information, and according to said type of plug information generating control signal;
According to said control signal; In the earphone jack with terminal equipment; Be used for respectively each section that each section with headset plug is electrically connected; Be electrically connected in the said terminal equipment on the corresponding circuit, wherein, each of said headset plug section comprises: L channel section, R channel section, signal circuit section and transmitter section.
14. method according to claim 13 is characterized in that, in the said earphone jack, is used for respectively each section that each section with headset plug is electrically connected, and is respectively the P1 section from inside to outside, P2 section, P3 section and P4 section; Said P3 section is connected with said R channel circuit in the said terminal equipment, and said P3 section is connected with the power supply of said terminal equipment through a pull-up resistor.
15. method according to claim 14 is characterized in that, the said headset plug type information that obtains, and according to said type of plug information generating control signal, be specially:
When said P1 section ground connection, detect the magnitude of voltage V1 of said P3 section; When said P2 section ground connection, detect the magnitude of voltage V2 of said P3 section; When said P4 section ground connection, detect the magnitude of voltage V3 of said P3 section; And generate first control signal, second control signal and the 3rd control signal respectively according to said V1, V2 and V3; Wherein, Said first control signal, said second control signal and said the 3rd control signal are confirmed according to the magnitude relationship of said V1, V2 and V3, are respectively applied for P1 section, P2 section and the P4 section of the said earphone jack of control;
Said according to said control signal, in the earphone jack with terminal equipment, be used for respectively each section that each section with headset plug is electrically connected, be electrically connected on the circuit corresponding in the said terminal equipment, be specially:
Said V1 according to said first control signal, said second control signal and said the 3rd control signal representative; The magnitude relationship of V2 and V3; With said P1 section, the P2 section, in the P4 section first section with said terminal equipment in said transmitter circuit be electrically connected; With said P1 section, the P2 section, in the P4 section second section with said terminal equipment in said signal circuit circuit be electrically connected; With said P1 section, the P2 section, in the P4 section the 3rd section with said terminal equipment in said L channel circuit be electrically connected, wherein, during said first section ground connection, the voltage of the detected P3 section of said detection module is said voltage V1, maximum voltage among V2 and the V3; During said second section ground connection, the voltage of the detected P3 of said detection module is said voltage V1, minimum voltage among V2 and the V3; During said the 3rd section ground connection, the voltage of the detected P3 of said detection module is said voltage V1, voltage placed in the middle among V2 and the V3.
CN2011102413838A 2011-08-22 2011-08-22 Method for being compatible with earphones with different plug types, apparatus and terminal equipment Pending CN102395069A (en)

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CN103379396A (en) * 2012-04-26 2013-10-30 国民技术股份有限公司 Method, module and circuit of audio interface microphone electrode and ground electrode control
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CN103916151A (en) * 2012-12-30 2014-07-09 北京握奇数据***有限公司 Method, device and system for obtaining audio line sequence
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CN104581479A (en) * 2014-12-17 2015-04-29 青岛歌尔声学科技有限公司 Demountable wireless earphone system
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CN107257518A (en) * 2017-08-15 2017-10-17 上海摩软通讯技术有限公司 Earphone interconnecting device and its forwarding method
CN110351632A (en) * 2019-08-02 2019-10-18 上海诺为科技有限公司 A kind of microphone and audio input interface adaptive circuit
CN110430509A (en) * 2019-08-02 2019-11-08 上海诺为科技有限公司 A kind of microphone and audio input interface adaptive approach
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

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CN103379396A (en) * 2012-04-26 2013-10-30 国民技术股份有限公司 Method, module and circuit of audio interface microphone electrode and ground electrode control
CN103916151B (en) * 2012-12-30 2016-03-30 北京握奇数据***有限公司 A kind of methods, devices and systems obtaining tone frequency channel wire sequence
CN103916151A (en) * 2012-12-30 2014-07-09 北京握奇数据***有限公司 Method, device and system for obtaining audio line sequence
CN103365418A (en) * 2013-06-24 2013-10-23 张宝权 Drive-by-wire method for multi-platform application and adjustable drive-by-wire device
CN103414981A (en) * 2013-07-17 2013-11-27 天地融科技股份有限公司 Device, method and terminal for recognizing audio interface pins
CN104010054B (en) * 2014-06-17 2019-02-15 努比亚技术有限公司 Ear plug device and control system based on earphone jack
CN104010054A (en) * 2014-06-17 2014-08-27 深圳市中兴移动通信有限公司 Headset plug device and control system based on headset jack
CN105681995A (en) * 2014-11-17 2016-06-15 联芯科技有限公司 Automatic earphone type identification device and method
CN104581479A (en) * 2014-12-17 2015-04-29 青岛歌尔声学科技有限公司 Demountable wireless earphone system
CN104581479B (en) * 2014-12-17 2017-12-19 青岛歌尔声学科技有限公司 A kind of detachable wireless headphone system
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CN107257518A (en) * 2017-08-15 2017-10-17 上海摩软通讯技术有限公司 Earphone interconnecting device and its forwarding method
CN107257518B (en) * 2017-08-15 2019-06-18 上海摩软通讯技术有限公司 Earphone interconnecting device and its forwarding method
CN110351632A (en) * 2019-08-02 2019-10-18 上海诺为科技有限公司 A kind of microphone and audio input interface adaptive circuit
CN110430509A (en) * 2019-08-02 2019-11-08 上海诺为科技有限公司 A kind of microphone and audio input interface adaptive approach
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

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Application publication date: 20120328