CN102480563A - Control method and device in process of inserting earphone into earphone socket - Google Patents
Control method and device in process of inserting earphone into earphone socket Download PDFInfo
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- CN102480563A CN102480563A CN2010105770175A CN201010577017A CN102480563A CN 102480563 A CN102480563 A CN 102480563A CN 2010105770175 A CN2010105770175 A CN 2010105770175A CN 201010577017 A CN201010577017 A CN 201010577017A CN 102480563 A CN102480563 A CN 102480563A
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Abstract
The invention provides a control method and device in a process of inserting an earphone into an earphone socket, wherein the method comprises the following steps: receiving an earphone insertion signal, and controlling an earphone insertion in-place detection circuit to detect whether the earphone is inserted in place or not according to the earphone insertion signal; and switching a mobile communication terminal to an earphone mode when detecting that the earphone is inserted in place. According to the control method and device disclosed by the invention, the earphone insertion in-place detection circuit is controlled to detect whether the earphone is inserted in place or not according to the earphone insertion signal, and the mobile terminal is switched to the earphone mode for implementing an earphone function after the earphone is detected to be indeed inserted in place, so that the problem that a phone call is put through or hung up by mistake during the process of inserting the earphone can be avoided, and the reliability is also improved. Furthermore, the method is simple and practicable and the production cost cannot be increased.
Description
Technical field
The present invention relates to communication technical field, control method and device when particularly a kind of earphone inserts earphone socket.
Background technology
Whether prior art normally detects mechanical switch on the earphone socket through the headset detection circuit and connects and judge whether earphone inserts; That is to say that the variation of the high-low level of earphone insertion detection signal judges whether earphone inserts before and after inserting according to earphone.After earphone inserts mobile communication terminal, realize connecting or disconnecting of phone through pressing earphone keystroke.Inventor of the present invention finds; The problem that this method exists is; Because the switch on the earphone socket is a mechanical trip switch, in the insertion process of earphone, each of headset plug section all can with the different contacts contacts (different) of earphone socket with the contact condition of final needs; Often earphone also insert fully put in place in; Whether just produced earphone and inserted detection signal, mobile communication terminal inserts detection signal according to earphone and switches to headset mode, remove to detect earphone keystroke and press down to carry out and connect or hang up the telephone.Therefore, also insert fully in the process put in place,, all possibly or hang up closing of the circuit if there is phone to call in or converse at earphone.
The another kind of method of judging whether earphone inserts is the voltage that directly detects above the earphone Mike line of earphone socket, and still in the insertion process of earphone, Mike's line still low level situation can occur, therefore, still the situation that misconnection is listened or hung up can take place.
Also having a kind of method of judging that earphone inserts is that the headset detection line is directly received on the left and right acoustic channels line of earphone.The problem of this method is, a sound channel had noise when earphone inserted, and earpiece volume misoperation can take place when big, also can be to the coupling on the connecing sound channel big capacitor charge and discharge, cause that this sound channel is spoken to wait problem slowly.
Summary of the invention
The object of the invention is intended to solve at least one of above-mentioned technological deficiency, and control method and device when particularly proposing a kind of earphone and inserting earphone socket are to prevent that in the earphone insertion process mistake is with closing of the circuit or hang up.
For achieving the above object; The control method that one aspect of the present invention proposes a kind of earphone when inserting earphone socket; May further comprise the steps: receive earphone and insert signal, and insert the signal controlling earphone according to said earphone and insert the testing circuit that puts in place and detect earphone and whether insert and put in place; And insert when putting in place when detecting said earphone, mobile communication terminal is switched to headset mode.
Control device when the present invention also proposes a kind of earphone on the other hand and inserts earphone socket, said control device is electrically connected with earphone socket, and said control device comprises: first detecting unit, control unit and second detecting unit.Wherein, first detecting unit is used to detect earphone and whether inserts earphone socket, and when detecting the earphone insertion, produces earphone and insert signal; Control unit is used for when the earphone that receives said first detecting unit transmission inserts signal; Start second detecting unit; And judge according to the detection signal of said second detecting unit feedback whether earphone inserts and put in place; And when judging that the earphone insertion puts in place, mobile communication terminal is switched to headset mode; Whether said second detecting unit is used to detect said earphone and inserts and put in place, and sends detection signal to said control unit.
The present invention inserts signal through receiving earphone; And insert signal according to said earphone and control earphone and insert the testing circuit that puts in place and detect earphone and whether insert and put in place; Really insert and just portable terminal is switched to headset mode after putting in place detecting earphone; Carry out ear-phone function, therefore can avoid in the earphone insertion process, closing of the circuit perhaps being hung up by mistake, improved reliability.And this method is simple, can not increase production cost.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously with easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the flow chart of the control method of the earphone of the embodiment of the invention when inserting earphone socket;
Fig. 2 is the structural representation of the control device of the earphone of the embodiment of the invention when inserting earphone socket; And
Fig. 3 is the circuit diagram of the cell phone mainboard earphone portion circuit of a specific embodiment of the present invention.
Embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the present invention, and can not be interpreted as limitation of the present invention.
The flow chart of the control method the when earphone that is illustrated in figure 1 as the embodiment of the invention inserts earphone socket, this method may further comprise the steps:
Whether step S101 receives earphone and inserts signal, and insert the signal controlling earphone according to earphone and insert the testing circuit that puts in place and detect earphone and insert and put in place.
In one embodiment of the invention; When earphone inserts earphone socket; Can detect earphone and insert signal, insert signal according to earphone earphone is inserted the testing circuit conducting that puts in place, make power supply to the earphone sound channel line power supply of inserting mobile communication terminal; Detect the output voltage of earphone sound channel line, and judge according to output voltage whether earphone inserts and put in place.Particularly, whether the output voltage of judging earphone sound channel line if in predefined voltage range, judge then that earphone inserts to put in place in predefined voltage range, if not in predefined voltage range, judges then that earphone does not insert to put in place.
In one embodiment of the invention, predefined voltage range is 0.1V～0.2V.Should be understood that because earphone a lot of resistances can occur during insertion for example therefore earphone Mike resistance etc. multiple voltage can occur, so can not be through the insertion state of simple high level or low level judgement earphone.Will also be understood that; Insert the difference of different and supply voltage of the load resistance of the testing circuit that puts in place according to earphone sound channel resistance and earphone; The different voltages with different scope can be set; But because the left and right acoustic channels resistance of earphone is less value with respect to the load resistance that earphone inserts the testing circuit that puts in place, therefore the end value of this predefined voltage range is the lower magnitude of voltage that approaches 0V.
Step S102 inserts when putting in place when detecting earphone, and mobile communication terminal is switched to headset mode.
In one embodiment of the invention, judging that earphone inserts when putting in place, also the may command earphone inserts the testing circuit that puts in place and closes, and cuts off the electricity supply to the power supply of earphone sound channel line, in order to avoid portable terminal switches to the audio performance that influences the earphone sound channel behind the headset mode.
In order to realize the foregoing description, the control device when the present invention also provides a kind of earphone to insert earphone socket.The structural representation of the control device the when earphone that is illustrated in figure 2 as the embodiment of the invention inserts earphone socket, this control device is electrically connected with earphone socket 40, comprising: first detecting unit 10, control unit 20 and second detecting unit 30.
Wherein, first detecting unit 10 is used to detect earphone and whether inserts earphone socket 40, and when detecting the earphone insertion, produces earphone and insert signal.Control unit 20 is used for when the earphone that receives 10 transmissions of first detecting unit inserts signal; Start second detecting unit 30; And judge according to the detection signal of second detecting unit 30 feedback whether earphone inserts and put in place; When judging that the earphone insertion puts in place, mobile communication terminal is switched to headset mode.Whether second detecting unit 30 is used to detect earphone and inserts and put in place, and sends detection signals to control unit 20.
In one embodiment of the invention, when control unit 20 also is used in mobile communication terminal switched to headset mode, close second detecting unit 30, in order to avoid portable terminal switches to the audio performance that influences the earphone sound channel behind the headset mode.
Fig. 3 is the circuit diagram of the cell phone mainboard earphone portion circuit of a specific embodiment of the present invention.As shown in Figure 3,1 pin ground connection of earphone socket, 2 pin are electrically connected with earphone Mike line, and 3 pin are electrically connected with earphone L channel line, and 4 pin are electrically connected with earphone R channel line, and 5 pin insert detection line with earphone and are electrically connected, and 6 pin are unsettled.
Earphone inserts detection line one end and is electrically connected with the primary processor (not shown) of mobile phone; The other end is electrically connected with earphone L channel line; And is electrically connected with the power supply of 2.8V through resistance R 1, form earphone insertion testing circuit, whether insert through the voltage detecting earphone on the detection earphone L channel line.
Metal-oxide-semiconductor Q1, resistance R 911, R912, R915, R916 and R923 constitute earphone together and insert the testing circuit that puts in place.Wherein, The source electrode of metal-oxide-semiconductor Q1 is electrically connected with the power supply of 2.8V through resistance R 911; The drain electrode of metal-oxide-semiconductor Q1 is electrically connected with resistance R 912; And through ADC (Analog to DigitalConvert, analog-to-digital conversion) the detection mouthful electrical connection of resistance R 915 with the primary processor of mobile phone, the grid of metal-oxide-semiconductor Q1 is electrically connected with primary processor through resistance R 916.One end of resistance R 912 is electrically connected with the drain electrode of metal-oxide-semiconductor Q1, and the other end is electrically connected with earphone R channel line, and through resistance R 923 ground connection.
In Fig. 3, R911 is 4.7K Ω, and R912 is 100 Ω, and R915 and R916 are 2.2K Ω, and R923 is 470K Ω.When the earphone of 3.5mm or 2.5mm inserts; Earphone inserts detection line and receives earphone insertion signal; And this earphone inserted the primary processor (not shown) that signal sends to mobile phone, primary processor receives earphone when inserting signal, through the control signal of control signal end output low level; Metal-oxide-semiconductor Q1 grid is a low level; So metal-oxide-semiconductor Q1 conducting, the supply voltage of 2.8V are added on the earphone sound channel line (i.e. 4 pin among the figure), primary processor detects the voltage that mouth can detect earphone R channel line (i.e. 4 pin among the figure) through ADC.Because in the process that earphone inserts, a lot of resistances can occur, earphone Mike resistance etc. for example is so multiple voltage can occur.In the present embodiment; Have only when primary processor when to detect voltage on 4 pin be 0.1V～0.2V; Confirm that just the earphone insertion puts in place, primary processor switches to headset mode with mobile communication terminal, carries out relevant ear-phone function; For example can pass through the earphone receiving phone, to alleviate the influence of radiation to human body.The control signal of the high level of the control signal end of primary processor output simultaneously, metal-oxide-semiconductor Q1 grid is a high level, so metal-oxide-semiconductor Q1 breaks off, the power supply of the supply voltage of cut-out 2.8V is to influence the audio performance of left and right acoustic channels in the process of avoiding conversing or listen to the music.
When should be understood that the type change of working as the earphone selected for use and earphone socket, the thing followed need be adjusted the component parameter that above-mentioned control device adopted accordingly.Certainly, when the size of the impedance of the change of the resistance of the earphone sound channel line of insertion and/or supply voltage change and/or resistance R 911, R912, R915, R916 and R923 changes, confirm that earphone inserts the voltage range that puts in place and also should change thereupon.Will also be understood that; Can use dissimilar metal-oxide-semiconductors to control conducting and disconnection that earphone inserts the testing circuit that puts in place; PMOS pipe or NMOS pipe etc. for example, according to the difference of metal-oxide-semiconductor type, primary processor also can send conducting or the disconnection that different level signals is controlled metal-oxide-semiconductor.In practical implementation, except adopting metal-oxide-semiconductor, can also adopt the control switch of other types as the control switch, for example controllable silicon is controlled conducting and the disconnection that earphone inserts the testing circuit that puts in place.These modifications or replacement all should be included in protection scope of the present invention.
The present invention inserts signal through receiving earphone; And insert signal according to said earphone and control earphone and insert the testing circuit that puts in place and detect earphone and whether insert and put in place; Really insert and just portable terminal is switched to headset mode after putting in place detecting earphone; Carry out ear-phone function, therefore can avoid in the earphone insertion process, closing of the circuit perhaps being hung up by mistake, improved reliability.And this method is simple, can not increase production cost.
Although illustrated and described embodiments of the invention; For those of ordinary skill in the art; Be appreciated that under the situation that does not break away from principle of the present invention and spirit and can carry out multiple variation, modification, replacement and modification that scope of the present invention is accompanying claims and be equal to and limit to these embodiment.
Claims (12)
1. the control method a when earphone inserts earphone socket is characterized in that, may further comprise the steps:
Receive earphone and insert signal, and insert the signal controlling earphone according to said earphone and insert the testing circuit that puts in place and detect earphone and whether insert and put in place; And
Detect said earphone and insert when putting in place, mobile communication terminal is switched to headset mode.
2. the control method when earphone according to claim 1 inserts earphone socket is characterized in that, when mobile communication terminal is switched to headset mode, also comprises:
Close said earphone and insert the testing circuit that puts in place.
3. the control method when earphone according to claim 1 inserts earphone socket is characterized in that, whether said control earphone inserts the testing circuit that puts in place and detect earphone and insert to put in place and specifically comprise:
Control said earphone and insert the testing circuit startup that puts in place, so that power supply is supplied power to earphone sound channel line;
Detect the output voltage of said earphone sound channel line; And
Judging according to said output voltage whether said earphone inserts puts in place.
4. the control method when earphone according to claim 3 inserts earphone socket is characterized in that, saidly judges according to said output voltage whether said earphone inserts to put in place and specifically comprises:
Judge that said output voltage is whether in predefined voltage range;
If judge said output voltage in said predefined voltage range, judge that then said earphone insertion puts in place; And
If judge said output voltage not in said predefined voltage range, judge then that said earphone does not insert to put in place.
5. the control method when earphone according to claim 4 inserts earphone socket is characterized in that said predefined voltage range is 0.1V～0.2V.
6. the control device a when earphone inserts earphone socket is characterized in that said control device is electrically connected with earphone socket, and said control device comprises: first detecting unit, control unit and second detecting unit, wherein:
First detecting unit is used to detect earphone and whether inserts earphone socket, and when detecting the earphone insertion, produces earphone and insert signal;
Control unit; Be used for when the earphone that receives said first detecting unit transmission inserts signal; Start second detecting unit; And judge according to the detection signal of said second detecting unit feedback whether earphone inserts and put in place, and when the insertion of judgement earphone puts in place, mobile communication terminal is switched to headset mode; And
Whether said second detecting unit is used to detect said earphone and inserts and put in place, and sends detection signal to said control unit.
7. the control device when earphone according to claim 6 inserts earphone socket is characterized in that said control unit also is used for when mobile communication terminal is switched to headset mode, closes said second detecting unit.
8. the control device when earphone according to claim 6 inserts earphone socket is characterized in that said first detecting unit comprises:
Earphone inserts detection line, and said earphone inserts detection line one end and is electrically connected with said control unit, and the other end is electrically connected with earphone L channel line, and is connected with power supply through first resistance.
9. the control device when earphone according to claim 6 inserts earphone socket is characterized in that said second detecting unit comprises:
Control switch; The control end of said control switch is electrically connected with said control unit; Come conducting or turn-off first link and second link of said control switch according to the signal of said control unit, first link of said control switch is connected with power supply, and second link of said control switch is connected with earphone R channel line; And second link of said control switch is connected with said control unit, to said control unit detection feedback signal.
10. the control device when earphone according to claim 9 inserts earphone socket is characterized in that said control switch is specially controllable silicon or metal-oxide-semiconductor.
11. the control device when earphone according to claim 10 inserts earphone socket is characterized in that when said control switch was metal-oxide-semiconductor, said second detecting unit specifically comprised:
Metal-oxide-semiconductor; The source electrode of said metal-oxide-semiconductor is connected with said power supply through second resistance; The grid of said metal-oxide-semiconductor is electrically connected with said control unit through the 3rd resistance and is used to receive the control signal that control unit sends; The drain electrode of said metal-oxide-semiconductor is connected with earphone R channel line through the 4th resistance, is electrically connected the voltage that is used for sending to said control unit detected said earphone R channel line with said control unit through the 5th resistance, and said earphone R channel line is through the 6th grounding through resistance.
The control device when 12. earphone according to claim 11 inserts earphone socket; It is characterized in that; Said earphone diameter is 2.5mm or 3.5mm; When the detection voltage range from said metal-oxide-semiconductor drain feedback that said control unit receives is 0.1V～0.2V, judge that said earphone inserts to put in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010577017.5A CN102480563B (en) | 2010-11-30 | 2010-11-30 | Control method and device in process of inserting earphone into earphone socket |
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| CN201010577017.5A CN102480563B (en) | 2010-11-30 | 2010-11-30 | Control method and device in process of inserting earphone into earphone socket |
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| CN102480563A true CN102480563A (en) | 2012-05-30 |
| CN102480563B CN102480563B (en) | 2014-07-02 |
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| CN104683913A (en) * | 2013-11-28 | 2015-06-03 | 展讯通信（上海）有限公司 | Electronic equipment and earphone detection circuit |
| CN104683915A (en) * | 2013-11-28 | 2015-06-03 | 展讯通信（上海）有限公司 | Electronic equipment and earphone detection circuit, method and device |
| CN105430549A (en) * | 2015-12-14 | 2016-03-23 | 惠州Tcl移动通信有限公司 | Device and method for preventing insertion wrong operation of earphone |
| CN105792069A (en) * | 2014-12-26 | 2016-07-20 | 联芯科技有限公司 | Headset base interface circuit |
| CN105828229A (en) * | 2015-08-28 | 2016-08-03 | 维沃移动通信有限公司 | Earphone, terminal, and earphone detection method |
| CN109602337A (en) * | 2017-10-11 | 2019-04-12 | 江苏东成机电工具有限公司 | A kind of sweeping robot |
| CN109698997A (en) * | 2017-10-23 | 2019-04-30 | 马克西姆综合产品公司 | System and method for attachment and impedance detection |
| CN110209543A (en) * | 2019-05-28 | 2019-09-06 | 维沃移动通信有限公司 | A kind of detection method and terminal of earphone socket |
| CN113271530A (en) * | 2021-05-20 | 2021-08-17 | 深圳市通标科技有限公司 | Plug-pull detection method and device of earphone equipment |
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| CN104683915B (en) * | 2013-11-28 | 2018-10-16 | 展讯通信（上海）有限公司 | Electronic equipment and earphone detection circuit, method and apparatus |
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| CN109698997A (en) * | 2017-10-23 | 2019-04-30 | 马克西姆综合产品公司 | System and method for attachment and impedance detection |
| CN109698997B (en) * | 2017-10-23 | 2022-06-14 | 马克西姆综合产品公司 | System and method for accessory and impedance detection |
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| CN110209543A (en) * | 2019-05-28 | 2019-09-06 | 维沃移动通信有限公司 | A kind of detection method and terminal of earphone socket |
| CN113271530A (en) * | 2021-05-20 | 2021-08-17 | 深圳市通标科技有限公司 | Plug-pull detection method and device of earphone equipment |
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| CN102480563B (en) | 2014-07-02 |
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