CN103220592B - A kind of earphone and key control method thereof - Google Patents
A kind of earphone and key control method thereof Download PDFInfo
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- CN103220592B CN103220592B CN201310158337.0A CN201310158337A CN103220592B CN 103220592 B CN103220592 B CN 103220592B CN 201310158337 A CN201310158337 A CN 201310158337A CN 103220592 B CN103220592 B CN 103220592B
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Abstract
The invention discloses a kind of earphone, comprise key circuit, the headset batteries be located in earphone, ADC analog-to-digital conversion module and control chip, key circuit comprises the resistance of some grades of series connection, and the switch switch of parallel connection and some function keys, one end common ground of switch switch and some function keys, the nodes at different levels of the resistance that the other end is connected with some grades are respectively electrically connected; Headset batteries is electrically connected to the input of Voltage stabilizing module, the input comparing transducer after the output series connection divider resistance of Voltage stabilizing module with level is electrically connected, the resistance input of being connected with some grades by the first holding wire after the input of ADC analog-to-digital conversion module compares transducer input with level is electrically connected is electrically connected, and the output that level compares transducer is electrically connected to the Enable Pin of control chip.The invention also discloses a kind of earphone keystroke control method.Earphone of the present invention and earphone keystroke control method thereof, decrease the signal control line of button.
Description
Technical field
The present invention relates to ear phone technology field, especially relate to a kind of earphone and key control method thereof.
Background technology
Along with the development of the modern life and the raising of people's living standard, the pursuit of people is also more and more higher.Earphone is as a kind of audio-visual equipment in order to adapt to the demand of people, and its function gets more and more, especially bluetooth earphone.At present, bluetooth earphone function gets more and more, and causes the number of keys of bluetooth earphone also to get more and more, and except the switch switch of bluetooth earphone, some bluetooth earphones also comprise the function keys such as Answer Key, hang-up key, broadcasting Pause key and volume add-substract key.
Increasing of bluetooth earphone number of keys, not only occupies the IO resource of more control chip, and increasing of respective signal line quantity also makes fabric swatch enlarged areas.If button is placed in line traffic control, between line traffic control and headset main body, the quantity of holding wire can directly affect line traffic control wire size and cost.
Summary of the invention
First technical problem to be solved by this invention is: provide a kind of earphone decreasing holding wire.
Second technical problem to be solved by this invention is: provide a kind of earphone keystroke control method decreasing holding wire.
For solving above-mentioned first technical problem, technical scheme of the present invention is: a kind of earphone, comprising:
Key circuit, described key circuit comprises the resistance of some grades of series connection, and the switch switch of parallel connection and some function keys, one end of described switch switch and some described function keys is by earth connection common ground, and the other end of described switch switch and some described function keys is electrically connected with the nodes at different levels of described some grades resistance of connecting respectively;
Be located at the headset batteries in described earphone, ADC analog-to-digital conversion module and control chip, described headset batteries is electrically connected to the input of Voltage stabilizing module, the input comparing transducer after the output series connection divider resistance of described Voltage stabilizing module with level is electrically connected, the input of described ADC analog-to-digital conversion module compares transducer input with described level is electrically connected and is electrically connected by the resistance input that the first holding wire is connected with described some grades, and the output that described level compares transducer is electrically connected to the Enable Pin of described control chip.
Preferably, described earphone also comprises line traffic control, and described key circuit is arranged in described line traffic control.
Preferably, described earphone is bluetooth earphone, and described control chip is Bluetooth chip.
For solving above-mentioned second technical problem, technical scheme of the present invention is: a kind of earphone keystroke control method, comprises the following steps:
A. in earphone off-mode; after pressing described switch switch; the input level that described level compares transducer is dragged down; described level compares the Enable Pin that converter output voltage triggers described control chip; and described ADC analog-to-digital conversion module gathers the output voltage signal of the resistance of described some grades of series connection by the first holding wire; according to described voltage signal, described control chip judges that described switch switch is pressed duration and met start set point, earphone is started shooting;
B. in earphone open state, the ADC analog-to-digital conversion module of described control chip gathers the output voltage signal of the resistance of described some grades of series connection by the first holding wire, described control chip judges described function key down state according to described voltage signal, realizes the control to earphone;
C. in earphone open state, after pressing described switch switch, the input level that described level compares transducer is dragged down, described level compares the Enable Pin that converter output voltage triggers described control chip, and described ADC analog-to-digital conversion module gathers the output voltage signal of the resistance of described some grades of series connection by the first holding wire, according to described voltage signal, described control chip judges that described switch switch is pressed duration and met shutdown set point, earphone shuts down.
Preferably, described earphone is bluetooth earphone, and described control chip is Bluetooth chip.
After have employed technique scheme, the invention has the beneficial effects as follows:
Due to earphone of the present invention comprise key circuit, the headset batteries be located in earphone, ADC analog-to-digital conversion module and control chip, key circuit comprises the resistance of some grades of series connection, and the switch switch of parallel connection and some function keys, one end of switch switch and some function keys is by earth connection common ground, and the nodes at different levels of the resistance that the other end of switch switch and some function keys is connected with some grades are respectively electrically connected; Headset batteries is electrically connected to the input of Voltage stabilizing module, the input comparing transducer after the output series connection divider resistance of Voltage stabilizing module with level is electrically connected, the resistance input of being connected with some grades by the first holding wire after the input of ADC analog-to-digital conversion module compares transducer input with level is electrically connected is electrically connected, and the output that level compares transducer is electrically connected to the Enable Pin of control chip.Therefore earphone of the present invention and key control method thereof are in earphone off-mode; after pressing switch switch; the input level that described level compares transducer is dragged down; level compares the Enable Pin of converter output voltage trigger control chip; and ADC analog-to-digital conversion module gathers the output voltage signal of the resistance of some grades of series connection by the first holding wire; according to described voltage signal, control chip judges that switch switch is pressed duration and met start set point, earphone is started shooting; In earphone open state, the ADC analog-to-digital conversion module of described control chip gathers the output voltage signal of the resistance of described some grades of series connection, and described control chip judges described function key down state according to described voltage signal, realizes the control to earphone.Like this, be connected by earth connection and this two signal line of the first holding wire with between control chip at switch switch and some function keys, just can realize switch switch and some function keys to earphone by key control.Decrease taking control chip IO resource, reduce the fabric swatch area of control chip.When adopting line traffic control to control earphone, because line traffic control end and earphone end only need to be connected by earth connection and this two signal line of the first holding wire, decreasing holding wire quantity, thus reducing the wire size of line traffic control, reducing cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the principle schematic of earphone of the present invention and key control method thereof;
In figure: 1, line traffic control; 11, resistance; 12, switch switch; 13, function key; 14, earth connection; 15, the first holding wire; 2, bluetooth earphone; 21, headset batteries; 22, Voltage stabilizing module; 23, level compares transducer; 24, Bluetooth chip; 241, the Enable Pin of Bluetooth chip; 242, ADC analog-to-digital conversion module; 25, divider resistance.
Embodiment
Fig. 1 is the principle schematic of earphone of the present invention and key control method thereof.With reference to Fig. 1, in the present embodiment, earphone is line traffic control bluetooth earphone, line traffic control bluetooth earphone comprises line traffic control 1 and bluetooth earphone 2, wherein, line traffic control 1 comprises key circuit, and key circuit comprises switch switch 12 and some function keys 13 of some grades of resistance 11 of connecting and parallel connection, one end of switch switch 12 and some function keys 13 is by earth connection 14 common ground, and the nodes at different levels of the resistance 11 that the other end of switch switch 12 and some function keys 13 is connected with some grades are respectively electrically connected; Headset batteries 21, ADC analog-to-digital conversion module 242 and Bluetooth chip 24 is provided with in bluetooth earphone 2, headset batteries 21 is electrically connected to the input of Voltage stabilizing module 22, the input comparing transducer 23 after the output series connection divider resistance 25 of Voltage stabilizing module 22 with level is electrically connected, resistance 11 input of being connected with some grades by the first holding wire 15 after the input of ADC analog-to-digital conversion module 242 compares transducer 23 input with level is electrically connected is electrically connected, and the output that level compares transducer 23 is electrically connected to the Enable Pin 241 of Bluetooth chip.
When bluetooth earphone 2 does not adopt line traffic control 1, key circuit also can be placed in the inside of bluetooth earphone 2.
The key control method of the bluetooth earphone of the present embodiment is as follows:
In bluetooth earphone 2 off-mode, after pressing switch switch 12, the input level that level compares transducer 23 is dragged down, level compares the Enable Pin 241 of transducer 23 output voltage trigger Bluetooth chip, and ADC analog-to-digital conversion module 242 gathers the output voltage signal of the resistance 11 of some grades of series connection by the first holding wire 15, the voltage signal values write software that ADC analog-to-digital conversion module 242 records by Bluetooth chip 24, by the preset value of this voltage signal values and software is compared, the action of identification switch switch 12, judge that switch switch 12 is pressed duration and met start set point, bluetooth earphone 2 is started shooting.
In bluetooth earphone 2 open state, the ADC analog-to-digital conversion module 242 of Bluetooth chip 24 gathers the output voltage signal of the resistance 11 of some grades of series connection by the first holding wire 15, the voltage signal values write software that ADC analog-to-digital conversion module 242 records by Bluetooth chip 24, by the preset value of this voltage signal values and software is compared, identify the action of some function keys 13, arbitration functions key 13 down state, realizes the control to bluetooth earphone 2.
In bluetooth earphone 2 open state, after pressing switch switch 12, the input level that level compares transducer 23 is dragged down, level compares the Enable Pin 241 of transducer 23 output voltage trigger Bluetooth chip, and ADC analog-to-digital conversion module 242 gathers the output voltage signal of the resistance 11 of some grades of series connection by the first holding wire 15, the voltage signal values write software that ADC analog-to-digital conversion module 242 records by Bluetooth chip 24, by the preset value of this voltage signal values and software is compared, the action of identification switch switch 12, judge that described switch switch 12 is pressed duration and met shutdown set point, bluetooth earphone 2 shuts down.
In the present embodiment, be connected at switch switch 12 and between some function keys 13 with Bluetooth chip 24 by earth connection 14 and this two signal line of the first holding wire 15, just can realize switch switch 12 and some function keys 13 pairs of bluetooth earphones 2 by key control.Decrease taking Bluetooth chip IO resource, reduce the fabric swatch area of Bluetooth chip 24.When adopting line traffic control 1 to control bluetooth earphone 2, because line traffic control 1 end and bluetooth earphone 2 end only need to be connected by earth connection 14 and this two signal line of the first holding wire 15, decrease holding wire quantity, thus reduce the wire size of line traffic control 1, reduce cost.
Certainly, earphone of the present invention and key control method thereof, be not only confined to bluetooth earphone 2, also goes for earphone and other the electronic equipment of other kind.
The above is the citing of best mode for carrying out the invention, and the part wherein do not addressed in detail is the common practise of those of ordinary skill in the art.Protection scope of the present invention is as the criterion with the content of claim, and any equivalent transformation carried out based on technology enlightenment of the present invention, also within protection scope of the present invention.
Claims (2)
1. an earphone keystroke control method, described earphone comprises:
Key circuit, described key circuit comprises the resistance of some grades of series connection, and the switch switch of parallel connection and some function keys, one end of described switch switch and some described function keys is by earth connection common ground, and the other end of described switch switch and some described function keys is electrically connected with the nodes at different levels of described some grades resistance of connecting respectively;
Be located at the headset batteries in described earphone, ADC analog-to-digital conversion module and control chip, described headset batteries is electrically connected to the input of Voltage stabilizing module, the input comparing transducer after the output series connection divider resistance of described Voltage stabilizing module with level is electrically connected, the input of described ADC analog-to-digital conversion module compares transducer input with described level is electrically connected and is electrically connected by the resistance input that the first holding wire is connected with described some grades, and the output that described level compares transducer is electrically connected to the Enable Pin of described control chip;
It is characterized in that, comprise the following steps:
A. in earphone off-mode, after pressing described switch switch, the input level that described level compares transducer is dragged down, described level compares the Enable Pin that converter output voltage triggers described control chip, and described ADC analog-to-digital conversion module gathers the output voltage signal of the resistance of described some grades of series connection by the first holding wire, according to described voltage signal, described control chip judges that described switch switch is pressed duration and met start set point, earphone is started shooting;
B. in earphone open state, the ADC analog-to-digital conversion module of described control chip gathers the output voltage signal of the resistance of described some grades of series connection by the first holding wire, described control chip judges described function key down state according to described voltage signal, realizes the control to earphone;
C. in earphone open state, after pressing described switch switch, the input level that described level compares transducer is dragged down, described level compares the Enable Pin that converter output voltage triggers described control chip, and described ADC analog-to-digital conversion module gathers the output voltage signal of the resistance of described some grades of series connection by the first holding wire, according to described voltage signal, described control chip judges that described switch switch is pressed duration and met shutdown set point, earphone shuts down.
2. earphone keystroke control method as claimed in claim 1, it is characterized in that: described earphone is bluetooth earphone, described control chip is Bluetooth chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310158337.0A CN103220592B (en) | 2013-04-28 | 2013-04-28 | A kind of earphone and key control method thereof |
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| CN201310158337.0A CN103220592B (en) | 2013-04-28 | 2013-04-28 | A kind of earphone and key control method thereof |
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| CN103220592A CN103220592A (en) | 2013-07-24 |
| CN103220592B true CN103220592B (en) | 2015-10-28 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TW201511471A (en) * | 2013-09-10 | 2015-03-16 | Wistron Corp | Switching circuit and electronic device |
| CN105872901A (en) * | 2016-04-20 | 2016-08-17 | 乐视控股（北京）有限公司 | Key device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201039440Y (en) * | 2007-03-14 | 2008-03-19 | 中兴通讯股份有限公司 | A cable control earphone for multi-key and single detection end |
| CN201063829Y (en) * | 2007-06-15 | 2008-05-21 | 东莞市广讯光电科技有限公司 | Bluetooth earphone |
| CN101453506A (en) * | 2007-11-29 | 2009-06-10 | 深圳市邦华电子有限公司 | Bluetooth earphone built-in type mobile phone |
| CN202435574U (en) * | 2011-12-27 | 2012-09-12 | 惠州Tcl移动通信有限公司 | Line-control earphone for mobile terminal |
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2013
- 2013-04-28 CN CN201310158337.0A patent/CN103220592B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201039440Y (en) * | 2007-03-14 | 2008-03-19 | 中兴通讯股份有限公司 | A cable control earphone for multi-key and single detection end |
| CN201063829Y (en) * | 2007-06-15 | 2008-05-21 | 东莞市广讯光电科技有限公司 | Bluetooth earphone |
| CN101453506A (en) * | 2007-11-29 | 2009-06-10 | 深圳市邦华电子有限公司 | Bluetooth earphone built-in type mobile phone |
| CN202435574U (en) * | 2011-12-27 | 2012-09-12 | 惠州Tcl移动通信有限公司 | Line-control earphone for mobile terminal |
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| CN103220592A (en) | 2013-07-24 |
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Effective date of registration: 20230425 Address after: 233000 85 Shengli Road, bengshan mountain, Bengbu, Anhui Patentee after: Bengbu wild hill network technology Co.,Ltd. Address before: 266061 room 401-436, 4th floor, building 3, Guozhan wealth center, No.18 Qinling Road, Laoshan District, Qingdao City, Shandong Province Patentee before: QINGDAO GOERTEK TECHNOLOGY Co.,Ltd. |