CN103929696B - A kind of headset detection processing method, device and mobile terminal - Google Patents
A kind of headset detection processing method, device and mobile terminal Download PDFInfo
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- CN103929696B CN103929696B CN201410099293.3A CN201410099293A CN103929696B CN 103929696 B CN103929696 B CN 103929696B CN 201410099293 A CN201410099293 A CN 201410099293A CN 103929696 B CN103929696 B CN 103929696B
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Abstract
The present invention discloses a kind of headset detection processing method, is applied to mobile terminal, and methods described includes：When detecting interrupt signal, the magnitude of voltage of DC offset voltage value and microphone to the microphone of earphone is detected；Compare the size of the DC offset voltage value of detected microphone and the magnitude of voltage of microphone, generate comparative result；According to comparative result, the DC offset voltage value to the microphone regulates and controls, to enable the earphone in the mobile terminal normal work.The present invention further simultaneously discloses a kind of headset detection processing unit and mobile terminal.Using technical scheme, can make different types of earphone on mobile terminals can normal work, save electricity；Also, can solve the problems, such as that iPhone earphones cannot be used normally after inserting other kinds of mobile terminal, improve the compatibility of iPhone earphones, lift the experience of user.
Description
Technical field
The present invention relates to mobile terminal application field, more particularly to a kind of headset detection processing method, device and movement are eventually
End.
Background technology
At present, the mobile terminal of Apple Inc.'s production, such as i Phone（It is commonly called as iPhone）, apple panel computer（It is commonly called as
iPad）Deng because function is more, intelligence degree is high, easy to use, being favored by increasing user.Also, per money
IPhone mobile phones are equipped with its special accessory, such as iPhone earphones, charger, outer casing protective sleeve.
Due to being provided with a special integrated circuit in iPhone earphones（IC, Integrated Circuit）Chip, institute
So that iPhone earphones are only adapted to iPhone mobile phones, and can not compatible other kinds of mobile terminal.Other kinds of mobile whole
On end, it is impossible to detect iPhone earphones whether insert or insert after the microphone call function of iPhone earphones can not use.
For example, Intel（Intel）, MediaTek Inc.（Mediatek）, high pass（Qualcomm）Deng the mobile phone that company is produced, in insertion
During iPhone earphones, it is impossible to which normal detection is conversed, and the microphone of iPhone earphones is without output.So, substantially reduce
The compatibility of iPhone earphones, the use to user is made troubles.
The content of the invention
In view of this, the main purpose of the embodiment of the present invention is to provide a kind of headset detection processing method, device and shifting
Dynamic terminal, can improve the compatibility of iPhone earphones, lift the experience of user.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of headset detection processing method is the embodiment of the invention provides, mobile terminal is applied to, methods described includes：
When detecting interrupt signal, the magnitude of voltage of DC offset voltage value and microphone to the microphone of earphone is carried out
Detection；
Compare the size of the DC offset voltage value of detected microphone and the magnitude of voltage of microphone, knot is compared in generation
Really；
According to comparative result, the DC offset voltage value to the microphone regulates and controls, to cause the earphone in institute
Stating mobile terminal being capable of normal work.
Preferably, described according to comparative result, the DC offset voltage value to the microphone regulates and controls, can wrap
Include：
When the comparative result shows that the DC offset voltage value of microphone is more than the magnitude of voltage of microphone, institute is first judged
The type of earphone is stated, the DC offset voltage value of the microphone is regulated and controled further according to headset type；
When the comparative result shows that the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone, first by Mike
The DC offset voltage value of wind is adjusted to predetermined DC bias voltage value, then judges the type of the earphone, and according to earphone class
Type regulates and controls to the DC offset voltage value of the microphone.
Preferably, the magnitude of voltage of the DC offset voltage value more than microphone that microphone is shown when the comparative result
When, first judge the type of the earphone, the DC offset voltage value of the microphone is regulated and controled further according to headset type, can
To include：
When the comparative result shows that the DC offset voltage value of microphone is more than the magnitude of voltage of microphone,
If the magnitude of voltage of the microphone is not zero, the type for judging the earphone is four-section type headset；
If the magnitude of voltage of the microphone is zero, further determining that the magnitude of voltage of the microphone in Preset Time is
No is still zero, if it is, the type for judging the earphone is three-section earphone；If it is not, then judging the type of the earphone
It is four-section type headset；
When the type for judging the earphone is for four-section type headset, no longer DC offset voltage value is adjusted；When sentencing
When the type of the disconnected earphone is three-section earphone, the DC offset voltage value of microphone is adjusted to zero.
Preferably, it is described when the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone, first by microphone
DC offset voltage value is adjusted to predetermined DC bias voltage value, then judges the type of the earphone, and according to headset type pair
The DC offset voltage value of the microphone is regulated and controled, and can be included：
When the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone, by the DC offset voltage value of microphone
Adjust to predetermined DC bias voltage value；
The magnitude of voltage of the microphone after the DC offset voltage value of the detection raising microphone；
If the magnitude of voltage of microphone is less than predetermined DC bias voltage value, the type for judging the earphone is iPhone
Earphone；If the magnitude of voltage of microphone is equal to predetermined DC bias voltage value, judge that the earphone is not properly inserted into；
When the type for judging the earphone is for iPhone earphones, the DC offset voltage value to microphone is not adjusted
It is whole；When judging that the earphone is not properly inserted into, the DC offset voltage value of microphone is adjusted to zero.
Preferably, when mobile terminal provides DC offset voltage by programmable linear voltage regulator to microphone, its
In, the programmable linear voltage regulator is connected with the DC offset voltage interface of microphone；
It is described to adjust to predetermined DC bias voltage value the DC offset voltage value of microphone, can include：
The DC offset voltage value of microphone is adjusted to predetermined DC biasing by adjusting programmable linear voltage regulator
Magnitude of voltage.
Preferably, when mobile terminal passes through analog switch, the first linear voltage regulator and the second linear voltage regulator to microphone
When DC offset voltage is provided, wherein, the analog switch is connected with the DC offset voltage interface of microphone, and described first
The output valve of linear voltage regulator is the first predetermined DC bias voltage, and the output valve of second linear voltage regulator is second default
DC offset voltage, first linear voltage regulator is the linear voltage regulator of non-programmable with second linear voltage regulator；
It is described to adjust to predetermined DC bias voltage value the DC offset voltage value of microphone, can include：
The analog switch is switched into the second linear voltage regulator from the first linear voltage regulator, so that the direct current of microphone is inclined
Magnitude of voltage is put to adjust to predetermined DC bias voltage value.
Preferably, the predetermined DC bias voltage can be 2.8V.
The embodiment of the present invention additionally provides a kind of headset detection processing unit, is applied to mobile terminal, and described device includes
Detection module, comparison module and regulation and control module；Wherein,
The detection module, for detecting interrupt signal, DC offset voltage value and Mike to the microphone of earphone
The magnitude of voltage of wind is detected；
The comparison module, the magnitude of voltage of DC offset voltage value and microphone for the microphone detected by comparing
Size, generate comparative result；
The regulation and control module, for being regulated and controled to the DC offset voltage value of the microphone according to comparative result, with
Enable the earphone in the mobile terminal normal work.
Preferably, the regulation and control module includes the first regulation and control submodule and the second regulation and control submodule, wherein,
The first regulation and control submodule, the DC offset voltage value for judging microphone when the comparison module is more than wheat
During the magnitude of voltage of gram wind, the type of the earphone is first judged, further according to headset type to the DC offset voltage of the microphone
Value is regulated and controled；
The second regulation and control submodule, the DC offset voltage value for judging microphone when the comparison module is equal to wheat
During the magnitude of voltage of gram wind, first the DC offset voltage value of microphone is adjusted to predetermined DC bias voltage, then judge the ear
The type of machine, and the DC offset voltage value of the microphone is regulated and controled according to headset type.
Preferably, the first regulation and control submodule, specifically for：
When the comparative result shows that the DC offset voltage value of microphone is more than the magnitude of voltage of microphone, if the wheat
The magnitude of voltage of gram wind is not zero, then the type for judging the earphone is four-section type headset；If the magnitude of voltage of the microphone is zero,
Whether the magnitude of voltage for then further determining that the microphone in Preset Time is still zero, if it is, judging the earphone
Type is three-section earphone；If it is not, then the type for judging the earphone is four-section type headset；
When the type for judging the earphone is for four-section type headset, no longer DC offset voltage value is adjusted；When sentencing
When the type of the disconnected earphone is three-section earphone, the DC offset voltage value of microphone is adjusted to zero.
Preferably, the second regulation and control submodule, specifically for：
When the comparison module judges that the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone, by microphone
DC offset voltage value adjust to predetermined DC bias voltage value；
The magnitude of voltage of the microphone after the DC offset voltage value of the detection raising microphone；
If the magnitude of voltage of microphone is less than predetermined DC bias voltage value, the type for judging the earphone is iPhone
Earphone；If the magnitude of voltage of microphone is equal to predetermined DC bias voltage value, judge that the earphone is not properly inserted into；
When the type for judging the earphone is for iPhone earphones, the DC offset voltage value to microphone is not adjusted
It is whole；When judging that the earphone is not properly inserted into, the DC offset voltage value of microphone is adjusted to zero.
Preferably, when mobile terminal provides DC offset voltage by programmable linear voltage regulator to microphone, its
In, the programmable linear voltage regulator is connected with the DC offset voltage interface of microphone；
The second regulation and control submodule is by adjusting programmable linear voltage regulator by the DC offset voltage value of microphone
Adjust to predetermined DC bias voltage value.
Preferably, when mobile terminal passes through analog switch, the first linear voltage regulator and the second linear voltage regulator to microphone
When DC offset voltage is provided, wherein, the analog switch is connected with the DC offset voltage interface of microphone, and described first
The output valve of linear voltage regulator is the first predetermined DC bias voltage, and the output valve of second linear voltage regulator is second default
DC offset voltage, first linear voltage regulator is the linear voltage regulator of non-programmable with second linear voltage regulator；
The analog switch is switched to the second linear voltage regulator by the second regulation and control submodule from the first linear voltage regulator,
So that the DC offset voltage value of microphone is adjusted to predetermined DC bias voltage value.
Preferably, the predetermined DC bias voltage can be 2.8V.
The embodiment of the present invention additionally provides a kind of mobile terminal, and the mobile terminal is included at headset detection mentioned above
Reason device.
Headset detection processing method, device and mobile terminal that the embodiment of the present invention is provided, when detecting interrupt signal,
The magnitude of voltage of DC offset voltage value and microphone to the microphone of earphone is detected；Compare detected microphone
DC offset voltage value and microphone magnitude of voltage size, generate comparative result；According to comparative result, to the microphone
DC offset voltage value regulated and controled, to enable the earphone in the mobile terminal normal work.In this way, according to ear
The type adjustment DC offset voltage value of machine, can to greatest extent save electricity, make different types of earphone in mobile terminal
On being capable of normal work；Also, solve iPhone earphones and insert asking of cannot normally using after other kinds of mobile terminal
Topic, when the type of earphone is iPhone earphones, can be such that the microphone call function of iPhone earphones normally uses, and improve
The compatibility of iPhone earphones, also improves the experience of user.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the headset detection processing method of the embodiment of the present invention one；
Fig. 2 is the schematic flow sheet of the headset detection processing method of the embodiment of the present invention two；
Fig. 3 is handling process schematic diagram when having earphone to insert provided in an embodiment of the present invention；
Fig. 4 is the composition structural representation of the headset detection processing unit of the embodiment of the present invention one；
Fig. 5 is the composition structural representation of the headset detection processing unit of the embodiment of the present invention two.
Specific embodiment
In order to more fully hereinafter understand the features of the present invention and technology contents, below in conjunction with the accompanying drawings to reality of the invention
Now it is described in detail, appended accompanying drawing purposes of discussion only for reference, not for limiting the present invention.
A kind of headset detection processing method provided in an embodiment of the present invention, is applied to mobile terminal, as shown in figure 1, at this
In one preferred embodiment of invention, the headset detection processing method is mainly included the following steps that：
Step 101：When detecting interrupt signal, to the DC offset voltage value and the electricity of microphone of the microphone of earphone
Pressure value is detected.
Here, when mobile terminal has earphone to insert, interrupt signal can be produced.
Here, the magnitude of voltage of the microphone typically refers to the operational voltage value of microphone.
Step 102：Compare the size of the DC offset voltage value of detected microphone and the magnitude of voltage of microphone, it is raw
Into comparative result.
Here, the comparative result only has two kinds of situations, and a kind of is that the DC offset voltage value of microphone is more than microphone
Magnitude of voltage, another kind be microphone DC offset voltage value be equal to microphone magnitude of voltage.
Specifically, when the DC offset voltage value of microphone is more than the magnitude of voltage of microphone, the wheat of the earphone is shown
Gram wind possesses the ability of normal work；When the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone, show described
The microphone of earphone does not possess the ability of normal work.
Step 103：According to comparative result, the DC offset voltage value to the microphone regulates and controls, described to cause
Earphone being capable of normal work in the mobile terminal.
Preferably, described according to comparative result, the DC offset voltage value to the microphone regulates and controls, can wrap
Include：
When the comparative result shows that the DC offset voltage value of microphone is more than the magnitude of voltage of microphone, institute is first judged
The type of earphone is stated, the DC offset voltage value of the microphone is regulated and controled further according to headset type；
When the comparative result shows that the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone, first by Mike
The DC offset voltage value of wind is adjusted to predetermined DC bias voltage value, then judges the type of the earphone, and according to earphone class
Type regulates and controls to the DC offset voltage value of the microphone.
Preferably, the magnitude of voltage of the DC offset voltage value more than microphone that microphone is shown when the comparative result
When, first judge the type of the earphone, the DC offset voltage value of the microphone is regulated and controled further according to headset type, can
To include：
When the comparative result shows that the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone,
If the magnitude of voltage of the microphone is not zero, the type for judging the earphone is four-section type headset；
If the magnitude of voltage of the microphone is zero, further determining that the magnitude of voltage of the microphone in Preset Time is
No is still zero, if it is, the type for judging the earphone is three-section earphone；If it is not, then judging the type of the earphone
It is four-section type headset；
When the type for judging the earphone is for four-section type headset, no longer DC offset voltage value is adjusted；When sentencing
When the type of the disconnected earphone is three-section earphone, the DC offset voltage value of microphone is adjusted to zero.
Here, when the type for judging the earphone is for three-section earphone, do not possess microphone due to three-section earphone and lead to
Words function, so the DC offset voltage value of microphone is adjusted to zero, can save electricity.
Preferably, it is described when the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone, first by microphone
DC offset voltage value is adjusted to predetermined DC bias voltage value, then judges the type of the earphone, and according to headset type pair
The DC offset voltage value of the microphone is regulated and controled, and can be included：
When the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone, by the DC offset voltage value of microphone
Adjust to predetermined DC bias voltage value；
The magnitude of voltage of the microphone after the DC offset voltage value of the detection raising microphone；
If the magnitude of voltage of microphone is less than predetermined DC bias voltage value, the type for judging the earphone is iPhone
Earphone；If the magnitude of voltage of microphone is equal to predetermined DC bias voltage value, judge that the earphone is not properly inserted into；
When the type for judging the earphone is for iPhone earphones, the DC offset voltage value to microphone is not adjusted
It is whole；When judging that the earphone is not properly inserted into, the DC offset voltage value of microphone is adjusted to zero.
Specifically, when mobile terminal provides DC offset voltage by programmable linear voltage regulator to microphone, its
In, the programmable linear voltage regulator is connected with the DC offset voltage interface of microphone；
It is described to adjust to predetermined DC bias voltage value the DC offset voltage value of microphone, can include：
The DC offset voltage value of microphone is adjusted to predetermined DC biasing by adjusting programmable linear voltage regulator
Magnitude of voltage.
Specifically, when mobile terminal passes through analog switch, the first linear voltage regulator and the second linear voltage regulator to microphone
When DC offset voltage is provided, wherein, the analog switch is connected with the DC offset voltage interface of microphone, and described first
The output valve of linear voltage regulator is the first predetermined DC bias voltage, and the output valve of second linear voltage regulator is second default
DC offset voltage, first linear voltage regulator is the linear voltage regulator of non-programmable with second linear voltage regulator；
It is described to adjust to predetermined DC bias voltage value the DC offset voltage value of microphone, can include：
The analog switch is switched into the second linear voltage regulator from the first linear voltage regulator, so that the direct current of microphone is inclined
Magnitude of voltage is put to adjust to predetermined DC bias voltage value.
Preferably, the predetermined DC bias voltage can be 2.8V.
Here, the predetermined DC bias voltage value is the magnitude of voltage of the microphone works that can make iPhone earphones.Also
It is to say, as long as can guarantee that predetermined DC bias voltage value is more than or equal to makes the critical voltage value of the microphone works of iPhone earphones
.
Headset detection processing method described in the present embodiment is particularly suited for the other kinds of movement in addition to iPhone
Terminal.For example, in actual applications, mobile terminal can be：The hand that the companies such as Intel, Mediatek, Qualcomm are produced
The mobile terminal such as machine or the panel computer with call function.
Headset detection processing method described in the present embodiment, when detecting interrupt signal, to the direct current of the microphone of earphone
The magnitude of voltage of bias voltage value and microphone is detected；Compare DC offset voltage value and the wheat of detected microphone
The size of the magnitude of voltage of gram wind, generates comparative result；According to comparative result, the DC offset voltage value to the microphone is carried out
Regulation and control：In this way, make the different types of earphone on mobile terminals can normal work, accomplish to save electricity to greatest extent
Amount；When the type of the earphone is iPhone earphones, can also make the microphone normal work of iPhone earphones, solve
IPhone earphones insert the problem that cannot be normally used after other kinds of mobile terminal, improve the compatibility of iPhone earphones
Property.
The embodiment of the present invention additionally provides a kind of headset detection processing method, is applied to mobile terminal, as shown in Fig. 2
In a preferred embodiment of the invention, the headset detection processing method is mainly included the following steps that：
Step 201：When detecting interrupt signal, to the DC offset voltage value and the electricity of microphone of the microphone of earphone
Pressure value is detected.
Here, when mobile terminal has earphone to insert, interrupt signal can be produced.
Here, the magnitude of voltage of the microphone typically refers to the operational voltage value of microphone.
Step 202：Compare the size of the DC offset voltage value of detected microphone and the magnitude of voltage of microphone, it is raw
Into comparative result.
Here, the comparative result only has two kinds of situations, and a kind of is that the DC offset voltage value of microphone is more than microphone
Magnitude of voltage, another kind be microphone DC offset voltage value be equal to microphone magnitude of voltage.
Specifically, when the DC offset voltage value of microphone is more than the magnitude of voltage of microphone, the wheat of the earphone is shown
Gram wind possesses the ability of normal work；When the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone, show described
The microphone of earphone does not possess the ability of normal work.
Step 203：When the comparative result shows that the DC offset voltage value of microphone is more than the magnitude of voltage of microphone,
First judge the type of the earphone, the DC offset voltage value of the microphone is regulated and controled further according to headset type；Work as institute
State comparative result show microphone DC offset voltage value be equal to microphone magnitude of voltage when, first by the direct current biasing of microphone
Magnitude of voltage is adjusted to predetermined DC bias voltage value, then judges the type of the earphone, and according to headset type to the Mike
The DC offset voltage value of wind is regulated and controled.
Specifically, the magnitude of voltage of the DC offset voltage value more than microphone that microphone is shown when the comparative result
When, first judge the type of the earphone, the DC offset voltage value of the microphone is regulated and controled further according to headset type, can
To include：
When the comparative result shows that the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone,
If the magnitude of voltage of the microphone is not zero, the type for judging the earphone is four-section type headset；
If the magnitude of voltage of the microphone is zero, further determining that the magnitude of voltage of the microphone in Preset Time is
No is still zero, if it is, the type for judging the earphone is three-section earphone；If it is not, then judging the type of the earphone
It is four-section type headset；
When the type for judging the earphone is for four-section type headset, no longer DC offset voltage value is adjusted；When sentencing
When the type of the disconnected earphone is three-section earphone, the DC offset voltage value of microphone is adjusted to zero.
Here, when the type for judging the earphone is for three-section earphone, do not possess microphone due to three-section earphone and lead to
Words function, so the DC offset voltage value of microphone is adjusted to zero, can save electricity.
Specifically, it is described when the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone, first by microphone
DC offset voltage value is adjusted to predetermined DC bias voltage value, then judges the type of the earphone, and according to headset type pair
The DC offset voltage value of the microphone is regulated and controled, and can be included：
When the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone, by the DC offset voltage value of microphone
Adjust to predetermined DC bias voltage value；
The magnitude of voltage of the microphone after the DC offset voltage value of the detection raising microphone；
If the magnitude of voltage of microphone is less than predetermined DC bias voltage value, the type for judging the earphone is iPhone
Earphone；If the magnitude of voltage of microphone is equal to predetermined DC bias voltage value, judge that the earphone is not properly inserted into；
When the type for judging the earphone is for iPhone earphones, the DC offset voltage value to microphone is not adjusted
It is whole；When judging that the earphone is not properly inserted into, the DC offset voltage value of microphone is adjusted to zero.
Specifically, when mobile terminal provides DC offset voltage by programmable linear voltage regulator to microphone, its
In, the programmable linear voltage regulator is connected with the DC offset voltage interface of microphone；
It is described to adjust to predetermined DC bias voltage value the DC offset voltage value of microphone, can include：
The DC offset voltage value of microphone is adjusted to predetermined DC biasing by adjusting programmable linear voltage regulator
Magnitude of voltage.
Specifically, when mobile terminal passes through analog switch, the first linear voltage regulator and the second linear voltage regulator to microphone
When DC offset voltage is provided, wherein, the analog switch is connected with the DC offset voltage interface of microphone, and described first
The output valve of linear voltage regulator is the first predetermined DC bias voltage, and the output valve of second linear voltage regulator is second default
DC offset voltage, first linear voltage regulator is the linear voltage regulator of non-programmable with second linear voltage regulator；
It is described to adjust to predetermined DC bias voltage value the DC offset voltage value of microphone, can include：
The analog switch is switched into the second linear voltage regulator from the first linear voltage regulator, so that the direct current of microphone is inclined
Magnitude of voltage is put to adjust to predetermined DC bias voltage value.
Preferably, the predetermined DC bias voltage can be 2.8V.
Here, the predetermined DC bias voltage value is the magnitude of voltage of the microphone works that can make iPhone earphones.Also
It is to say, as long as can guarantee that predetermined DC bias voltage value is more than or equal to makes the critical voltage value of the microphone works of iPhone earphones
.
In the present embodiment, the headset detection processing method is particularly suited for the other kinds of movement in addition to iPhone
Terminal.For example, in actual applications, mobile terminal can be：The hand that the companies such as Intel, Mediatek, Qualcomm are produced
Machine or the panel computer with call function.
Headset detection processing method described in the present embodiment, when detecting interrupt signal, to the direct current of the microphone of earphone
The output valve of bias voltage and the magnitude of voltage of microphone are detected；According to the DC offset voltage of detected microphone
Output valve and microphone magnitude of voltage, tentatively earphone is sorted out：When the DC offset voltage value of microphone is more than wheat
During the magnitude of voltage of gram wind, the type of the earphone is four-section type headset or three-section earphone, when the type for judging the earphone is
During four-section type headset, DC offset voltage value is not adjusted；When the type for judging the earphone is for three-section earphone, will
The DC offset voltage value of microphone is adjusted to zero, in this way, earphone normal work can not only be made, moreover it is possible to save to greatest extent
Electricity；When the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone, first by the DC offset voltage value of microphone
Adjust to predetermined DC bias voltage value, if the type of the earphone is iPhone earphones, the normal work of iPhone earphones can be made
Make；Solve the problems, such as that iPhone earphones cannot be used normally after inserting other kinds of mobile terminal, improve iPhone ears
The compatibility of machine, also improves the experience of user.
For example, after iPhone earphones are inserted into other kinds of mobile terminal, by improving DC offset voltage value, making
Current DC offset voltage value is adjusted to predetermined DC bias voltage value, it becomes possible to make the normal work of microphone of iPhone earphones
Make.
Fig. 3 is handling process schematic diagram when having earphone to insert provided in an embodiment of the present invention, as shown in figure 3, the treatment
Flow is mainly included the following steps that：
Step 301：Detection interrupt signal；
Specifically, when interrupt signal is detected, show there is earphone to insert.
Here, when interrupt signal is detected, step 302 is performed.
Step 302：The magnitude of voltage Va of DC offset voltage value V1 and microphone to the microphone of earphone is detected；
Here, the DC offset voltage value of the microphone of earphone is designated as V1, the magnitude of voltage of current microphone is designated as Va.
Step 303：Whether Va is judged less than V1, if it is, performing step 304；If not, performing step 305；
Here, when Va is not less than V1, situations of the Va equal to V1 can only occur.
Step 304：Judge whether Va is equal to 0, if it is, step 306 is performed, if not, performing step 308；
Step 305：V1 is adjusted to V2, while the magnitude of voltage Vb of detection microphone now；
Here, Vb is the magnitude of voltage of the microphone after the DC offset voltage value of the raising microphone for detecting.
Here, V2 is the magnitude of voltage of the microphone works that can make iPhone earphones.
Step 306：Continue to detect in T time, whether judge Va still equal to 0, if it is, performing step 309；If
It is no, perform step 308；
Here, T is Preset Time, can be set according to specific actual conditions.
Step 307：Whether Vb is judged less than V2, if it is, step 310 is performed, if not, performing step 311；
Here, when Vb is not less than V2, situations of the Vb equal to V2 can only occur.
Step 308：The type for judging the earphone is four-section type headset, V1 is not adjusted；
Step 309：The type for judging the earphone is three-section earphone, and V1 is adjusted to zero；
Step 310：Judge that the type of the earphone is iPhone earphones, V2 is not adjusted；
Step 311：Judge that the earphone is not properly inserted into, V2 is adjusted to zero.
In above-mentioned steps 305, V1 can be adjusted to V2 by adjusting programmable linear voltage regulator.Can also in advance by
The output valve of the first linear voltage regulator of non-programmable is set to V1, sets the output valve of the second linear voltage regulator of non-programmable
V2 is set to, then when needing to switch over, second is switched to linearly surely from the first linear voltage regulator by switching analoging switch
Depressor, so that V1 is adjusted to V2.
The above-mentioned headset detection processing method of correspondence, the embodiment of the invention provides a kind of headset detection processing unit, described
Headset detection processing unit is applied to mobile terminal, as shown in figure 4, described device includes detection module 41, the and of comparison module 42
Regulation and control module 43；Wherein,
The detection module 41, for detecting interrupt signal, DC offset voltage value and wheat to the microphone of earphone
The magnitude of voltage of gram wind is detected；
The comparison module 42, the voltage of DC offset voltage value and microphone for the microphone detected by comparing
The size of value, generates comparative result；
The regulation and control module 43, for being regulated and controled to the DC offset voltage value of the microphone according to comparative result,
To enable the earphone in the mobile terminal normal work.
Preferably, the regulation and control module 43, specifically for：
When the comparison module judges that the DC offset voltage value of microphone is more than the magnitude of voltage of microphone, institute is first judged
The type of earphone is stated, the DC offset voltage value of the microphone is regulated and controled further according to headset type；
When the comparison module judges that the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone, first by Mike
The DC offset voltage value of wind is adjusted to predetermined DC bias voltage, then judges the type of the earphone, and according to headset type
DC offset voltage value to the microphone regulates and controls.
Preferably, the regulation and control module 43, is specifically additionally operable to：
When the comparative result shows that the DC offset voltage value of microphone is more than the magnitude of voltage of microphone, if the wheat
The magnitude of voltage of gram wind is not zero, then the type for judging the earphone is four-section type headset；If the magnitude of voltage of the microphone is zero,
Whether the magnitude of voltage for then further determining that the microphone in Preset Time is still zero, if it is, judging the earphone
Type is three-section earphone；If it is not, then the type for judging the earphone is four-section type headset；
When the type for judging the earphone is for four-section type headset, no longer DC offset voltage value is adjusted；When sentencing
When the type of the disconnected earphone is three-section earphone, the DC offset voltage value of microphone is adjusted to zero.
Preferably, the regulation and control module 43, is specifically additionally operable to：
When the comparison module judges that the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone, by microphone
DC offset voltage value adjust to predetermined DC bias voltage value；
The magnitude of voltage of the microphone after the DC offset voltage value of the detection raising microphone；
If the magnitude of voltage of microphone is less than predetermined DC bias voltage value, the type for judging the earphone is iPhone
Earphone；If the magnitude of voltage of microphone is equal to predetermined DC bias voltage value, judge that the earphone is not properly inserted into；
When the type for judging the earphone is for iPhone earphones, the DC offset voltage value to microphone is not adjusted
It is whole；When judging that the earphone is not properly inserted into, the DC offset voltage value of microphone is adjusted to zero.
Preferably, when mobile terminal provides DC offset voltage by programmable linear voltage regulator to microphone, its
In, the programmable linear voltage regulator is connected with the DC offset voltage interface of microphone；
Preferably, the regulation and control module 43, is specifically additionally operable to：
The DC offset voltage value of microphone is adjusted to predetermined DC biasing by adjusting programmable linear voltage regulator
Magnitude of voltage.
Preferably, when mobile terminal passes through analog switch, the first linear voltage regulator and the second linear voltage regulator to microphone
When DC offset voltage is provided, wherein, the analog switch is connected with the DC offset voltage interface of microphone, and described first
The output valve of linear voltage regulator is the first predetermined DC bias voltage, and the output valve of second linear voltage regulator is second default
DC offset voltage, first linear voltage regulator is the linear voltage regulator of non-programmable with second linear voltage regulator；
The regulation and control module 43, is specifically additionally operable to：The analog switch is switched into the second line from the first linear voltage regulator
Property voltage-stablizer, so that the DC offset voltage value of microphone is adjusted to predetermined DC bias voltage value.
Here, the predetermined DC bias voltage is the DC offset voltage that iPhone ear microphones can be made to work.
Preferably, the predetermined DC bias voltage can be 2.8V.
The embodiment of the present invention additionally provides headset detection processing unit, and the headset detection processing unit is applied to mobile whole
End, as shown in figure 5, described device includes detection module 41, comparison module 41 and regulation and control module 43；The regulation and control module 43 includes
The first regulation and control regulation and control submodule 432 of submodule 431 and second；Wherein,
The detection module 41, for detecting interrupt signal, DC offset voltage value and wheat to the microphone of earphone
The magnitude of voltage of gram wind is detected；
The comparison module 42, the voltage of DC offset voltage value and microphone for the microphone detected by comparing
The size of value, generates comparative result；
The regulation and control module 43, for being regulated and controled to the DC offset voltage value of the microphone according to comparative result,
To enable the earphone in the mobile terminal normal work；
The first regulation and control submodule 431, the DC offset voltage value for judging microphone when the comparison module is big
When the magnitude of voltage of microphone, the type of the earphone is first judged, further according to headset type to the direct current biasing of the microphone
Magnitude of voltage is regulated and controled；
The second regulation and control submodule 432, for judging DC offset voltage value of microphone etc. when the comparison module
When the magnitude of voltage of microphone, first the DC offset voltage value of microphone is adjusted to predetermined DC bias voltage, then judge institute
The type of earphone is stated, and the DC offset voltage value of the microphone is regulated and controled according to headset type.
Preferably, the first regulation and control submodule 431, specifically for：
When the comparative result shows that the DC offset voltage value of microphone is more than the magnitude of voltage of microphone, if the wheat
The magnitude of voltage of gram wind is not zero, then the type for judging the earphone is four-section type headset；If the magnitude of voltage of the microphone is zero,
Whether the magnitude of voltage for then further determining that the microphone in Preset Time is still zero, if it is, judging the earphone
Type is three-section earphone；If it is not, then the type for judging the earphone is four-section type headset；
When the type for judging the earphone is for four-section type headset, no longer DC offset voltage value is adjusted；When sentencing
When the type of the disconnected earphone is three-section earphone, the DC offset voltage value of microphone is adjusted to zero.
Preferably, the second regulation and control submodule 432, specifically for：
When the comparison module judges that the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone, by microphone
DC offset voltage value adjust to predetermined DC bias voltage value；
The magnitude of voltage of the microphone after the DC offset voltage value of the detection raising microphone；
If the magnitude of voltage of microphone is less than predetermined DC bias voltage value, the type for judging the earphone is iPhone
Earphone；If the magnitude of voltage of microphone is equal to predetermined DC bias voltage value, judge that the earphone is not properly inserted into；
When the type for judging the earphone is for iPhone earphones, the DC offset voltage value to microphone is not adjusted
It is whole；When judging that the earphone is not properly inserted into, the DC offset voltage value of microphone is adjusted to zero.
Preferably, when mobile terminal provides DC offset voltage by programmable linear voltage regulator to microphone, its
In, the programmable linear voltage regulator is connected with the DC offset voltage interface of microphone；
The second regulation and control submodule 432 is by adjusting programmable linear voltage regulator by the DC offset voltage of microphone
Value is adjusted to predetermined DC bias voltage value.
Preferably, when mobile terminal passes through analog switch, the first linear voltage regulator and the second linear voltage regulator to microphone
When DC offset voltage is provided, wherein, the analog switch is connected with the DC offset voltage interface of microphone, and described first
The output valve of linear voltage regulator is the first predetermined DC bias voltage, and the output valve of second linear voltage regulator is second default
DC offset voltage, first linear voltage regulator is the linear voltage regulator of non-programmable with second linear voltage regulator；
The analog switch is switched to the second linear voltage stabilization by the second regulation and control submodule 432 from the first linear voltage regulator
Device, so that the DC offset voltage value of microphone is adjusted to predetermined DC bias voltage value.
Here, the predetermined DC bias voltage is the DC offset voltage of the microphone works that can make iPhone earphones.
Preferably, the predetermined DC bias voltage can be 2.8V.
The embodiment of the present invention also describes a kind of mobile terminal, and the mobile terminal is included at headset detection mentioned above
Reason device.
It should be noted that the work(of the detection module 41, comparison module 42 and regulation and control module 43 described in the embodiment of the present invention
Energy can be by the central processing unit in the mobile terminal（CPU, Central Processing Unit）, microprocessor（MPU,
Micro Processor Unit）Or Digital Signal Processing（DSP, Digital Signal Processor）Chip etc. comes real
It is existing.
In sum, the embodiment of the present invention is when interrupt signal is detected, to the DC offset voltage of the microphone of earphone
The magnitude of voltage of value and microphone is detected；Compare the DC offset voltage value of detected microphone and the electricity of microphone
The size of pressure value, generates comparative result；According to comparative result, the DC offset voltage value to the microphone regulates and controls：Such as
This, can make different types of earphone on mobile terminals can normal work, save electricity；IPhone earphones can be solved and insert it
The problem that cannot be normally used after the mobile terminal of his type, improves the compatibility of iPhone earphones, lifts the experience of user.
In several embodiments provided by the present invention, it should be understood that disclosed method, device and electronic equipment,
Can realize by another way.Apparatus embodiments described above be only it is schematical, for example, the unit draw
Point, only a kind of division of logic function can have other dividing mode, such as when actually realizing：Multiple units or component can
To combine, or another system is desirably integrated into, or some features can be ignored, or do not perform.In addition, shown or discussed
The coupling each other of each part or direct-coupling or communication connection can be by some interfaces, equipment or unit
INDIRECT COUPLING or communication connection, can be electrical, machinery or other forms.
The above-mentioned unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, it is also possible to be distributed to multiple network lists
In unit；Part or all of unit therein can be according to the actual needs selected to realize the purpose of this embodiment scheme.
In addition, each functional unit in various embodiments of the present invention can be fully integrated into a processing unit, also may be used
Being each unit individually as a unit, it is also possible to which two or more units are integrated in a unit；It is above-mentioned
Integrated unit can both be realized in the form of hardware, it would however also be possible to employ hardware adds the form of SFU software functional unit to realize.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can pass through
Programmed instruction related hardware is completed, and foregoing program can be stored in a computer read/write memory medium, the program
Upon execution, the step of including above method embodiment is performed；And foregoing storage medium includes：It is movable storage device, read-only
Memory（ROM, Read-Only Memory）, random access memory（RAM, Random Access Memory）, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Or, if the above-mentioned integrated unit of the embodiment of the present invention is using realization in the form of software function module and as independently
Production marketing or when using, it is also possible to storage is in a computer read/write memory medium.Based on such understanding, this hair
The part that the technical scheme of bright embodiment substantially contributes to prior art in other words can in the form of software product body
Reveal and, the computer software product is stored in a storage medium, including some instructions are used to so that a computer sets
It is standby（Can be personal computer, server or network equipment etc.）Perform the whole of each embodiment methods described of the invention
Or part.And foregoing storage medium includes：Movable storage device, ROM, RAM, magnetic disc or CD etc. are various can to store journey
The medium of sequence code.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (13)
1. a kind of headset detection processing method, is applied to mobile terminal, it is characterised in that methods described includes：
When detecting interrupt signal, the magnitude of voltage of DC offset voltage value and microphone to the microphone of earphone is examined
Survey；
Compare the size of the DC offset voltage value of detected microphone and the magnitude of voltage of microphone, generate comparative result；
According to comparative result, the DC offset voltage value to the microphone regulates and controls, to cause the earphone in the shifting
Dynamic terminal being capable of normal work；
It is described that according to comparative result, the DC offset voltage value to the microphone regulates and controls, including：When the comparative result
When showing that the DC offset voltage value of microphone is more than the magnitude of voltage of microphone, the type of the earphone is first judged, further according to ear
Machine type regulates and controls to the DC offset voltage value of the microphone；
When the comparative result shows that the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone, first by microphone
DC offset voltage value is adjusted to predetermined DC bias voltage value, then judges the type of the earphone, and according to headset type pair
The DC offset voltage value of the microphone is regulated and controled.
2. method according to claim 1, it is characterised in that described when the comparative result shows that the direct current of microphone is inclined
Put magnitude of voltage more than microphone magnitude of voltage when, the type of the earphone is first judged, further according to headset type to the microphone
DC offset voltage value regulated and controled, including：
When the comparative result shows that the DC offset voltage value of microphone is more than the magnitude of voltage of microphone,
If the magnitude of voltage of the microphone is not zero, the type for judging the earphone is four-section type headset；
If the magnitude of voltage of the microphone is zero, whether still the magnitude of voltage of the microphone in Preset Time is further determined that
It is zero, if it is, the type for judging the earphone is three-section earphone；If it is not, then the type for judging the earphone is four
Segmentation earphone；
When the type for judging the earphone is for four-section type headset, no longer DC offset voltage value is adjusted；When judging
When the type for stating earphone is three-section earphone, the DC offset voltage value of microphone is adjusted to zero.
3. method according to claim 1, it is characterised in that described when the DC offset voltage value of microphone is equal to Mike
During the magnitude of voltage of wind, first the DC offset voltage value of microphone is adjusted to predetermined DC bias voltage value, then judge the ear
The type of machine, and the DC offset voltage value of the microphone is regulated and controled according to headset type, including：
When the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone, the DC offset voltage value of microphone is adjusted
To predetermined DC bias voltage value；
The magnitude of voltage of the microphone after the DC offset voltage value of the detection raising microphone；
If the magnitude of voltage of microphone is less than predetermined DC bias voltage value, judge that the type of the earphone is iPhone ears
Machine；If the magnitude of voltage of microphone is equal to predetermined DC bias voltage value, judge that the earphone is not properly inserted into；
When the type for judging the earphone is for iPhone earphones, the DC offset voltage value to microphone is not adjusted；When
When judging that the earphone is not properly inserted into, the DC offset voltage value of microphone is adjusted to zero.
4. method according to claim 3, it is characterised in that when mobile terminal by programmable linear voltage regulator to wheat
When gram wind provides DC offset voltage, wherein, the DC offset voltage interface of the programmable linear voltage regulator and microphone
It is connected；
It is described to adjust to predetermined DC bias voltage value the DC offset voltage value of microphone, including：
The DC offset voltage value of microphone is adjusted to predetermined DC bias voltage by adjusting programmable linear voltage regulator
Value.
5. method according to claim 3, it is characterised in that when mobile terminal passes through analog switch, the first linear voltage stabilization
When device and the second linear voltage regulator provide DC offset voltage to microphone, wherein, the direct current of the analog switch and microphone
Bias voltage interface is connected, and the output valve of first linear voltage regulator is the first predetermined DC bias voltage, described second
The output valve of linear voltage regulator is the second predetermined DC bias voltage, first linear voltage regulator and second linear voltage stabilization
Device is the linear voltage regulator of non-programmable；
It is described to adjust to predetermined DC bias voltage value the DC offset voltage value of microphone, including：
The analog switch is switched into the second linear voltage regulator from the first linear voltage regulator, so that the direct current biasing electricity of microphone
Pressure value is adjusted to predetermined DC bias voltage value.
6. the method according to claim 4 or 5, it is characterised in that predetermined DC bias voltage is 2.8V.
7. a kind of headset detection processing unit, is applied to mobile terminal, it is characterised in that described device includes detection module, ratio
Compared with module and regulation and control module；Wherein,
The detection module, for detecting interrupt signal, DC offset voltage value and microphone to the microphone of earphone
Magnitude of voltage is detected；
The comparison module, the DC offset voltage value for the microphone detected by comparing is big with the magnitude of voltage of microphone
It is small, generate comparative result；
The regulation and control module, for being regulated and controled to the DC offset voltage value of the microphone according to comparative result, to cause
The earphone being capable of normal work in the mobile terminal；The regulation and control module includes the first regulation and control submodule and the second regulator
Module, wherein,
The first regulation and control submodule, the DC offset voltage value for judging microphone when the comparison module is more than microphone
Magnitude of voltage when, first judge the type of the earphone, the DC offset voltage value of the microphone is entered further according to headset type
Row regulation and control；
The second regulation and control submodule, the DC offset voltage value for judging microphone when the comparison module is equal to microphone
Magnitude of voltage when, first the DC offset voltage value of microphone is adjusted to predetermined DC bias voltage, then judge the earphone
Type, and the DC offset voltage value of the microphone is regulated and controled according to headset type.
8. device according to claim 7, it is characterised in that the first regulation and control submodule, specifically for：
When the comparative result shows that the DC offset voltage value of microphone is more than the magnitude of voltage of microphone, if the microphone
Magnitude of voltage be not zero, then the type for judging the earphone is four-section type headset；If the magnitude of voltage of the microphone is zero, enter
One step determines whether the magnitude of voltage of the microphone is still zero in Preset Time, if it is, judging the type of the earphone
It is three-section earphone；If it is not, then the type for judging the earphone is four-section type headset；
When the type for judging the earphone is for four-section type headset, no longer DC offset voltage value is adjusted；When judging
When the type for stating earphone is three-section earphone, the DC offset voltage value of microphone is adjusted to zero.
9. device according to claim 7, it is characterised in that the second regulation and control submodule, specifically for：
When the comparison module judges that the DC offset voltage value of microphone is equal to the magnitude of voltage of microphone, by the straight of microphone
Stream bias voltage value is adjusted to predetermined DC bias voltage value；
The magnitude of voltage of the microphone after the DC offset voltage value of the detection raising microphone；
If the magnitude of voltage of microphone is less than predetermined DC bias voltage value, judge that the type of the earphone is iPhone ears
Machine；If the magnitude of voltage of microphone is equal to predetermined DC bias voltage value, judge that the earphone is not properly inserted into；
When the type for judging the earphone is for iPhone earphones, the DC offset voltage value to microphone is not adjusted；When
When judging that the earphone is not properly inserted into, the DC offset voltage value of microphone is adjusted to zero.
10. device according to claim 7, it is characterised in that
When mobile terminal provides DC offset voltage by programmable linear voltage regulator to microphone, wherein, it is described to compile
The linear voltage regulator of journey is connected with the DC offset voltage interface of microphone；
The second regulation and control submodule is adjusted the DC offset voltage value of microphone by adjusting programmable linear voltage regulator
To predetermined DC bias voltage value.
11. devices according to claim 7, it is characterised in that
When mobile terminal provides direct current biasing by analog switch, the first linear voltage regulator and the second linear voltage regulator to microphone
During voltage, wherein, the analog switch is connected with the DC offset voltage interface of microphone, first linear voltage regulator
Output valve is the first predetermined DC bias voltage, and the output valve of second linear voltage regulator is the second predetermined DC biased electrical
Pressure, first linear voltage regulator is the linear voltage regulator of non-programmable with second linear voltage regulator；
The analog switch is switched to the second linear voltage regulator by the second regulation and control submodule from the first linear voltage regulator, so that
The DC offset voltage value of microphone is adjusted to predetermined DC bias voltage value.
12. device according to claim 10 or 11, it is characterised in that the predetermined DC bias voltage is 2.8V.
13. a kind of mobile terminals, it is characterised in that the mobile terminal includes the earphone described in any one of claim 7 to 12
Detection process device.
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| CN201410099293.3A CN103929696B (en) | 2014-03-17 | 2014-03-17 | A kind of headset detection processing method, device and mobile terminal |
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| CN105807911A (en) * | 2014-12-30 | 2016-07-27 | 环达电脑(上海)有限公司 | Automatic earphone recognition device and method |
| CN106792343A (en) * | 2015-11-19 | 2017-05-31 | 展讯通信（上海）有限公司 | A kind of head circuit and electronic equipment |
| CN105635880B (en) * | 2016-02-19 | 2019-02-26 | 惠州Tcl移动通信有限公司 | A kind of the earphone sound quality improvement method and system of mobile terminal |
| KR101830866B1 (en) * | 2016-05-19 | 2018-02-22 | 주식회사 지엠케이 | Power communication apparatus using mike terminal |
| 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 |
| CN110049405B (en) * | 2018-01-15 | 2022-02-18 | 厦门雅迅网络股份有限公司 | Compatible vehicle-mounted microphone circuit |
| CN110927492B (en) * | 2019-11-28 | 2022-04-22 | 歌尔股份有限公司 | Wireless earphone state detection method and wireless earphone |
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