CN101873367A - System and method for expending mobile functional keys - Google Patents
System and method for expending mobile functional keys Download PDFInfo
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- CN101873367A CN101873367A CN 201010208968 CN201010208968A CN101873367A CN 101873367 A CN101873367 A CN 101873367A CN 201010208968 CN201010208968 CN 201010208968 CN 201010208968 A CN201010208968 A CN 201010208968A CN 101873367 A CN101873367 A CN 101873367A
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Abstract
The invention relates to a system and a method for expending mobile functional keys. The system comprises a mobile phone and a mobile phone earphone, wherein an analog digital voltage conversion module is arranged in the mobile phone, the earphone is provided with an earphone joint, an earphone control part and an earphone sound production unit which are connected in series through a conductive wire, the earphone joint comprises four pins which are sequentially a common terminal, an audio frequency pin, a right sound channel and a left sound channel, and both ends of the audio frequency pin of the earphone joint are connected in parallel with more than five groups of circuits with press keys connected in series with resistors. When the analog digital voltage conversion module of a mobile phone CPU detects the voltage and carries out time counting, the press keys are judged according to the set voltage value, and the corresponding press keys interruption is generated. Compared with the scheme of realizing remote distance operation by Bluetooth, a keyboard and a mouse, the implementation of the invention has the advantages that the cost is low, users can realize the mobile phone press keys expansion through the earphone wire control, and the corresponding functions can be realized.
Description
Technical field
The present invention relates to moving communicating field, more particularly, relate to a kind of system and method for expending mobile functional keys.
Background technology
Application at handset earphone, 2.5mm/3.5mm the interface earphone is to use one of prevailing earphone on the market, the user can realize on earphone cord that control music and volume regulate, connect, hang up the telephone, and broadcast receiver starts and stops and increasing and decreasing function such as frequency search radio station.At present mobile phone is as hand-hold communication appliance, user's operating handset be basically with mobile phone as on the palm, can work as mobile phone as TV-out, video is outputed to when seeing on the TV, the user often needs apart from mobile phone certain distance is arranged, can't convenient and swift operating handset, influence user experience.
Summary of the invention
In order to eliminate above-mentioned defective of the prior art, the present invention proposes a kind of system and method for expending mobile functional keys, and its principle is:
General four pins of mobile phone 2.5mm/3.5mm Earphone joint band, as Fig. 5, A, B, C, D are followed successively by common port ground, audio frequency pin, R channel, L channel.Mobile phone is by this B, and tone frequency channel wire is powered to MIC, and supply power voltage is generally 1V～3V.
Suppose that supply power voltage is V, supply power voltage passes through to power to ear microphone behind the current-limiting resistance Rb, and the MIC internal resistance is Rmic.We are connected in parallel on the both sides of MIC with the connect resistance of a resistance R1 of button, after button is pressed, parallel resistance Rp=R1*Rmic/ (R1+Rmic), the voltage Vmic=V*Rp/ (Rb+Rp) of MIC both sides so, after the substitution Rp, Vmic=Rmic*V/ (Rmic (1+Rb/R1)+Rb).Can be learnt that by last formula the voltage of Vmic is by only variable R 1 decision, we are by adjusting the R1 size, and the resistance value size of corresponding each button can detect corresponding Vmic, and we just complete successfully the detection to each button.
An object of the present invention is to propose a kind of system of expending mobile functional keys, described system comprises mobile phone and handset earphone, analog digital voltage transformation module ADC is set in the described mobile phone, described earphone has Earphone joint, earphone control part and the earphone phonation unit that is serially connected by lead, described Earphone joint comprises four pins, be followed successively by common port ground, audio frequency pin, R channel and L channel, the audio frequency pin two ends of described Earphone joint are parallel with the circuit that 5 groups of above buttons are connected with resistance.
More specifically, the system of above-described a kind of expending mobile functional keys, the audio frequency pin two ends of described Earphone joint 7 groups of circuit that button is connected with resistance in parallel.
More specifically, the system of above-described a kind of expending mobile functional keys, described button comprises that the key that advances, back spacer, broadcast Pause key, volume add, volume down, mode switch button and on-hook/closing key.
More specifically, the system of above-described a kind of expending mobile functional keys, described mode switch button is provided with music line traffic control pattern and cell-phone function pattern, and music line traffic control pattern comprises that the key that advances, back spacer, broadcast Pause key, volume add, volume down; The cell-phone function pattern comprises direction right button, direction left button, acknowledgement key, square upwarding key and square down Arrow; Long is right soft key by the direction right button, and long is left soft key by the direction left button.
More specifically, the system of above-described a kind of expending mobile functional keys, described on-hook/closing key is to answer, hang up the telephone, close the function button of using and shutting down.
A further object of the present invention provides a kind of method of expending mobile functional keys, and described method may further comprise the steps:
S1, at the audio frequency pin two ends of described Earphone joint the circuit that button is connected with resistance more than 5 groups in parallel;
S2, push button;
The analog digital voltage transformation module ADC of S3, mobile phone CPU detects voltage and timing;
The analog digital voltage transformation module ADC of S4, mobile phone CPU judges button according to the magnitude of voltage of setting, and produces corresponding button and interrupts;
The analog digital voltage transformation module of S5, mobile phone CPU is judged push-button type according to voltage duration length, produces corresponding button and interrupts.
More specifically, the method for above-described a kind of expending mobile functional keys, the audio frequency pin two ends of described Earphone joint 7 groups of circuit that button is connected with resistance in parallel; Described button comprises that the key that advances, back spacer, broadcast Pause key, volume add, volume down, mode switch button and on-hook/closing key.
More specifically, the method for above-described a kind of expending mobile functional keys, described mode switch button is provided with music line traffic control pattern and cell-phone function pattern, and music line traffic control pattern comprises that the key that advances, back spacer, broadcast Pause key, volume add, volume down; The cell-phone function pattern comprises direction right button, direction left button, acknowledgement key, square upwarding key and square down Arrow; Long is right soft key by the direction right button, and long is left soft key by the direction left button.
More specifically, the method for above-described a kind of expending mobile functional keys, described on-hook/closing key is to answer, hang up the telephone, close the function button of using and shutting down.
More specifically, the method for above-described a kind of expending mobile functional keys is among the described step S5, the upper limit of voltage duration is set at 2 seconds, when button time during more than or equal to 2 seconds, produces long button and interrupts, during less than 2 seconds, produce short button and interrupt, and carry out corresponding push-button type registering functional.
Implement the system and method for a kind of expending mobile functional keys of the present invention, have following beneficial effect:
This scheme realizes that with using bluetooth, keyboard and mouse remote operated scheme compares, and cost is lower, can make the user pass through the earphone line traffic control and realize the mobile phone key expansion, and realize function corresponding, and it is more convenient to operate.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the detection button flow chart of the system and method for a kind of expending mobile functional keys of the present invention;
Fig. 2 is that the button value of the system and method for a kind of expending mobile functional keys of the present invention is judged flow process;
Fig. 3 is that the push-button type of the system and method for a kind of expending mobile functional keys of the present invention is judged schematic diagram;
Fig. 4 is the system and method circuit theory diagrams of a kind of expending mobile functional keys of the present invention;
Fig. 5 is the structural representation of handset earphone joint.
Embodiment
As shown in Figure 1 and Figure 4, in the embodiment of the system and method for a kind of expending mobile functional keys of the present invention, a kind of system of expending mobile functional keys, comprise mobile phone and handset earphone, analog digital voltage transformation module ADC is set in the mobile phone, described earphone has Earphone joint, earphone control part and the earphone phonation unit that is serially connected by lead, described Earphone joint a comprises four pins, be followed successively by common port ground, audio frequency pin, R channel and L channel, the audio frequency pin two ends of described Earphone joint a are parallel with the circuit that 7 groups of buttons are connected with resistance.Described button comprises that the key that advances, back spacer, broadcast Pause key, volume add, volume down, mode switch button and on-hook/closing key.The mode switch button is provided with music line traffic control pattern and cell-phone function pattern, and music line traffic control pattern comprises that the key that advances, back spacer, broadcast Pause key, volume add, volume down; The cell-phone function pattern comprises direction right button, direction left button, acknowledgement key, square upwarding key and square down Arrow; Long is right soft key by the direction right button, and long is left soft key by the direction left button.On-hook/closing key is to answer, hang up the telephone, close the function button of using and shutting down.
A kind of method of expending mobile functional keys, described method may further comprise the steps:
S1, at the audio frequency pin two ends of described Earphone joint a 7 groups of circuit that button is connected with resistance in parallel; Described button comprises that the key that advances, back spacer, broadcast Pause key, volume add, volume down, mode switch button and on-hook/closing key.The mode switch button is provided with music line traffic control pattern and cell-phone function pattern, and music line traffic control pattern comprises that the key that advances, back spacer, broadcast Pause key, volume add, volume down; The cell-phone function pattern comprises direction right button, direction left button, acknowledgement key, square upwarding key and square down Arrow; Long is right soft key by the direction right button, and long is left soft key by the direction left button.Described on-hook/closing key is to answer, hang up the telephone, close the function button of using and shutting down.
S2, push button;
The analog digital voltage transformation module ADC of S3, mobile phone CPU detects voltage and timing;
S4, as Fig. 2, the analog digital voltage transformation module ADC of mobile phone CPU judges button according to the magnitude of voltage of setting, for example set [X1, X2] interval key value is Key1, set [X2, X3] interval key value is Key2, setting [X3, X4] interval key value is Key3, set [X4, X5] interval key value is Key4, setting [X5, X6] interval key value is Key5, set [X6, X7] interval key value is Key6, produces corresponding key according to the magnitude of voltage that records then and interrupts, and realizes function corresponding;
S5, as Fig. 3, the analog digital voltage transformation module ADC of mobile phone CPU judges push-button type according to voltage duration length, for example the upper limit of voltage duration is set at 2 seconds, when button time during more than or equal to 2 seconds, producing long button interrupts, during less than 2 seconds, produce short button and interrupt, and carry out corresponding push-button type registering functional.
In sum, as those of ordinary skill is scrutable in the art, described in this specification is a preferred embodiment of the present invention, and all changes of being made under this invention's idea or modification all should be in claim protection ranges of the present invention.
Claims (10)
1. the system of an expending mobile functional keys, described system comprises mobile phone and handset earphone, the analog digital voltage transformation module is set in the described mobile phone, described earphone has Earphone joint, earphone control part and the earphone phonation unit that is serially connected by lead, described Earphone joint comprises four pins, be followed successively by common port ground, audio frequency pin, R channel and L channel, it is characterized in that, the audio frequency pin two ends of described Earphone joint are parallel with the circuit that 5 groups of above buttons are connected with resistance.
2. the system of a kind of expending mobile functional keys according to claim 1 is characterized in that, the audio frequency pin two ends of described Earphone joint 7 groups of circuit that button is connected with resistance in parallel.
3. the system of a kind of expending mobile functional keys according to claim 2 is characterized in that, described button comprises that the key that advances, back spacer, broadcast Pause key, volume add, volume down, mode switch button and on-hook/closing key.
4. the system of a kind of expending mobile functional keys according to claim 3, it is characterized in that, described mode switch button is provided with music line traffic control pattern and cell-phone function pattern, and music line traffic control pattern comprises that the key that advances, back spacer, broadcast Pause key, volume add, volume down; The cell-phone function pattern comprises direction right button, direction left button, acknowledgement key, square upwarding key and square down Arrow; Long is right soft key by the direction right button, and long is left soft key by the direction left button.
5. the system of a kind of expending mobile functional keys according to claim 3 is characterized in that, described on-hook/closing key is to answer, hang up the telephone, close the function button of using and shutting down.
6. the method for an expending mobile functional keys is characterized in that, described method may further comprise the steps:
S1, at the audio frequency pin two ends of described Earphone joint the circuit that button is connected with resistance more than 5 groups in parallel;
S2, push button;
The analog digital voltage transformation module of S3, mobile phone CPU detects voltage and timing;
The analog digital voltage transformation module of S4, mobile phone CPU is judged button according to the magnitude of voltage of setting, and produces corresponding button and interrupts;
The analog digital voltage transformation module of S5, mobile phone CPU is judged push-button type according to voltage duration length, produces corresponding button and interrupts.
7. the method for a kind of expending mobile functional keys according to claim 6 is characterized in that, the audio frequency pin two ends of described Earphone joint 7 groups of circuit that button is connected with resistance in parallel; Described button comprises that the key that advances, back spacer, broadcast Pause key, volume add, volume down, mode switch button and on-hook/closing key.
8. the method for a kind of expending mobile functional keys according to claim 7, it is characterized in that, described mode switch button is provided with music line traffic control pattern and cell-phone function pattern, and music line traffic control pattern comprises that the key that advances, back spacer, broadcast Pause key, volume add, volume down; The cell-phone function pattern comprises direction right button, direction left button, acknowledgement key, square upwarding key and square down Arrow; Long is right soft key by the direction right button, and long is left soft key by the direction left button.
9. the method for a kind of expending mobile functional keys according to claim 7 is characterized in that, described on-hook/closing key is to answer, hang up the telephone, close the function button of using and shutting down.
10. the method for a kind of expending mobile functional keys according to claim 6 is characterized in that, among the described step S5, the upper limit of voltage duration is set at 2 seconds, when button time during more than or equal to 2 seconds, produces long button and interrupts; During less than 2 seconds, produce short button and interrupt, and carry out the function of corresponding push-button type registration.
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| CN 201010208968 CN101873367A (en) | 2010-06-24 | 2010-06-24 | System and method for expending mobile functional keys |
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| CN 201010208968 CN101873367A (en) | 2010-06-24 | 2010-06-24 | System and method for expending mobile functional keys |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103634717A (en) * | 2013-11-28 | 2014-03-12 | 小米科技有限责任公司 | Method, device and terminal equipment utilizing earphone to control |
| CN104330981A (en) * | 2013-07-22 | 2015-02-04 | 联想(北京)有限公司 | Key control method, electronic device and line-control device |
| WO2015070458A1 (en) * | 2013-11-18 | 2015-05-21 | 华为终端有限公司 | Information processing method and device |
| CN104954965A (en) * | 2015-05-08 | 2015-09-30 | 华为技术有限公司 | Headset button detection method and device |
| CN106131730A (en) * | 2016-08-11 | 2016-11-16 | 歌尔股份有限公司 | A kind of line control earphone |
| CN106201503A (en) * | 2016-07-06 | 2016-12-07 | 捷开通讯(深圳)有限公司 | Virtual reality system and the control method of virtual reality system |
| WO2016192187A1 (en) * | 2015-06-04 | 2016-12-08 | 中兴通讯股份有限公司 | Method and device for identifying earphone |
| CN106817495A (en) * | 2017-02-21 | 2017-06-09 | 广东欧珀移动通信有限公司 | Mobile terminal message processing method, device and mobile terminal |
| CN107222809A (en) * | 2017-05-27 | 2017-09-29 | 西安易朴通讯技术有限公司 | Input equipment and method for controlling mobile terminal |
| CN107635179A (en) * | 2016-07-18 | 2018-01-26 | 联想移动通信科技有限公司 | A kind of method of adjustment of earphone impedance, device and terminal |
| CN109213329A (en) * | 2018-08-30 | 2019-01-15 | 中新工程技术研究院有限公司 | A kind of multi-functional rollback key operation method |
| CN113365178A (en) * | 2021-04-28 | 2021-09-07 | 广东朝阳电子科技股份有限公司 | Method for realizing input port expansion by sharing temperature detection port of Bluetooth headset |
| CN113473296A (en) * | 2021-07-01 | 2021-10-01 | 广东朝阳电子科技股份有限公司 | Control circuit and method of key expansion type wired earphone |
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| CN2817228Y (en) * | 2005-03-09 | 2006-09-13 | 黄文涛 | Ear phone line control device capable of controlling mobile phone |
| CN101216731A (en) * | 2007-01-05 | 2008-07-09 | 联想移动通信科技有限公司 | Portable electronic apparatus and its line traffic control accomplishing method |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330981A (en) * | 2013-07-22 | 2015-02-04 | 联想(北京)有限公司 | Key control method, electronic device and line-control device |
| WO2015070458A1 (en) * | 2013-11-18 | 2015-05-21 | 华为终端有限公司 | Information processing method and device |
| CN103634717A (en) * | 2013-11-28 | 2014-03-12 | 小米科技有限责任公司 | Method, device and terminal equipment utilizing earphone to control |
| CN104954965A (en) * | 2015-05-08 | 2015-09-30 | 华为技术有限公司 | Headset button detection method and device |
| CN104954965B (en) * | 2015-05-08 | 2018-08-21 | 华为技术有限公司 | The detection method and device of earphone keystroke |
| WO2016192187A1 (en) * | 2015-06-04 | 2016-12-08 | 中兴通讯股份有限公司 | Method and device for identifying earphone |
| CN106201503A (en) * | 2016-07-06 | 2016-12-07 | 捷开通讯(深圳)有限公司 | Virtual reality system and the control method of virtual reality system |
| CN107635179A (en) * | 2016-07-18 | 2018-01-26 | 联想移动通信科技有限公司 | A kind of method of adjustment of earphone impedance, device and terminal |
| CN106131730A (en) * | 2016-08-11 | 2016-11-16 | 歌尔股份有限公司 | A kind of line control earphone |
| CN106817495B (en) * | 2017-02-21 | 2019-07-23 | Oppo广东移动通信有限公司 | Mobile terminal message processing method, device and mobile terminal |
| CN106817495A (en) * | 2017-02-21 | 2017-06-09 | 广东欧珀移动通信有限公司 | Mobile terminal message processing method, device and mobile terminal |
| CN107222809A (en) * | 2017-05-27 | 2017-09-29 | 西安易朴通讯技术有限公司 | Input equipment and method for controlling mobile terminal |
| CN109213329A (en) * | 2018-08-30 | 2019-01-15 | 中新工程技术研究院有限公司 | A kind of multi-functional rollback key operation method |
| CN113365178A (en) * | 2021-04-28 | 2021-09-07 | 广东朝阳电子科技股份有限公司 | Method for realizing input port expansion by sharing temperature detection port of Bluetooth headset |
| CN113365178B (en) * | 2021-04-28 | 2022-09-30 | 广东朝阳电子科技股份有限公司 | Method for realizing input port expansion by sharing temperature detection port of Bluetooth headset |
| CN113473296A (en) * | 2021-07-01 | 2021-10-01 | 广东朝阳电子科技股份有限公司 | Control circuit and method of key expansion type wired earphone |
| CN113473296B (en) * | 2021-07-01 | 2024-03-01 | 广东朝阳电子科技股份有限公司 | Control circuit and method for key expansion type wired earphone |
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Application publication date: 20101027 |