CN205017525U - Drive -by -wire earphone and electronic equipment - Google Patents
Drive -by -wire earphone and electronic equipment Download PDFInfo
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- CN205017525U CN205017525U CN201520643935.1U CN201520643935U CN205017525U CN 205017525 U CN205017525 U CN 205017525U CN 201520643935 U CN201520643935 U CN 201520643935U CN 205017525 U CN205017525 U CN 205017525U
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- button
- mike
- button branch
- line control
- resistance
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Abstract
The utility model relates to an electron field discloses a drive -by -wire earphone and electronic equipment. The utility model discloses in, the drive -by -wire earphone contains the mike contact to and 2 at least button branch roads, each button branch road contains the resistance and the button of series connection, article one, the button branch road is connected between mike contact and ground, other button branch roads in proper order with previous button branch road in button parallel connection, electronic equipment contains application processing ware, power management chip to and can insert the headphone connector of drive -by -wire earphone, GPIO pin of application processing ware is connected with mike's pin of headphone connector, power management chip's a voltage output pin is connected to mike's pin through a divider resistance. Consequently can be directly with mike's line as button digital signal transmission line, make not only that the earphone interface can expand to press the bond number more, with low costs in addition, have the commonality.
Description
Technical field
The utility model relates to electronic applications, particularly line control earphone and electronic equipment.
Background technology
Along with the development of science and technology, mobile phone has become the common equipment in people's life, and application also becomes increasingly complex.Present many people listen to the music with mobile phone, and therefore mobile phone line control also gives birth to.Mobile phone line control is and designs button to control broadcasting or the time-out of music on earphone cord, user is made not need to take out the adjustment that mobile phone carries out music, but it is few to be limited to earphone signal number, what earphone interface can be expanded just can be restricted because of number of signals less by bond number, and this has just limited to the line traffic control function of mobile phone.Although increase special line traffic control chip also can expand earphone keystroke number, realize line traffic control function, cost compare is high, does not possess general applicability.
Therefore, be necessary to provide a kind of low cost line control earphone to solve the above-mentioned deficiency of prior art.
Utility model content
The purpose of this utility model is to provide a kind of line control earphone and electronic equipment, and can directly use Mike's line as key number signal transmssion line, what not only make earphone interface expand be more by bond number, and cost is low, has versatility.
For solving the problems of the technologies described above, execution mode of the present utility model provides a kind of line control earphone, comprises: Mike contact, and at least 2 button branch roads, and each button branch road comprises resistance and the button of series connection; Article 1, button branch road is connected between Mike contact and ground, and other button branch roads are connected in parallel with the button in last bar button branch road successively.
Of the present utility modelly embodiment further provides a kind of electronic equipment, comprise: application processor, power management chip, and the headset connector that can insert line control earphone; A universal input of application processor exports (GeneralPurposeInputOutputpin, GPIO) pin and is connected with Mike's pin of headset connector; A voltage output pin of power management chip is connected to Mike's pin by a divider resistance.
The utility model execution mode in terms of existing technologies, by connecting many button branch roads in the Mike contact of line control earphone, and Article 1 button branch road is connected between Mike contact and ground, other button branch roads are connected in parallel with the button in last bar button branch road successively; And the power management chip of electronic equipment voltage output pin is connected to Mike's pin by a divider resistance, make the resistance on this divider resistance and button branch road form dividing potential drop to the output voltage of power management chip, and application processor GPIO pin is connected with Mike's pin of headset connector.When pressing different buttons, GPIO pin can detect different magnitudes of voltage, and according to the magnitude of voltage of setting, application processor just can judge which button is pressed, then perform different operations.Execution mode of the present utility model uses Mike's line as key number signal transmssion line, and what earphone interface not only can be made to expand is more by bond number, and cost is low, has versatility.
In addition, in each button branch road, the resistance value of resistance is identical.
In addition, the resistance value of the resistance in each button branch road increases progressively successively, thus can carry out different designs according to different demands, improves the scope of application of line control earphone.
In addition, line control earphone comprises 3 button branch roads; Button is respectively: volume increases key, volume reduces key and music stop key.Because volume increases key, to reduce key and music stop key be the most basal keystroke utilizing earphone to play music to volume, so arrange the complexity that the button branch road comprising these 3 kinds of buttons can reduce head circuit, can ensure again the basic function of line control earphone.
In addition, line control earphone comprises 5 button branch roads; Button is respectively: volume increases key, volume reduces key, next Qu Jian, a upper bent key and music stop key.Because these 5 buttons are the most frequently used buttons utilizing earphone to play music, make the function of line control earphone more perfect so arrange described 5 button branch roads.
In addition, the magnitude of voltage that voltage output pin exports is 1.8 volts.
In addition, because smart mobile phone or panel computer use electronic equipment the most widely at present, the utility model is made to have general applicability so electronic equipment is smart mobile phone or panel computer.
Accompanying drawing explanation
Fig. 1 is the circuit theory schematic diagram of the line control earphone according to the utility model first execution mode;
Fig. 2 is the schematic diagram of the electronic equipment according to the utility model second execution mode;
Fig. 3 is the operation principle schematic diagram of the electronic equipment according to the utility model second execution mode.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, each execution mode of the present utility model is explained in detail.But, persons of ordinary skill in the art may appreciate that in each execution mode of the utility model, proposing many ins and outs to make reader understand the application better.But, even without these ins and outs with based on the many variations of following execution mode and amendment, each claim of the application technical scheme required for protection also can be realized.
Because listen to the music with converse and certainly can not occur simultaneously, so improvement of the present utility model is only the associative operation that line control earphone carries out when listening to the music, other parts do not elaborate.
First execution mode of the present utility model relates to a kind of line control earphone, comprises Mike contact, and at least 2 button branch roads, and each button branch road comprises resistance and the button of series connection; Article 1, button branch road is connected between Mike contact and ground, and other button branch roads are connected in parallel with the button in last bar button branch road successively.
Shown in composition graphs 1, comprise 5 button branch roads in the present embodiment, Article 1, button branch road comprises R1 and the S1 of series connection, Article 2 button branch road comprises R2 and the S2 of series connection, Article 3 button branch road comprises R3 and the S3 of series connection, Article 4 button branch road comprises R4 and the S4 of series connection, and Article 5 button branch road comprises R5 and the S5 of series connection.Wherein S1 represents volume increases key, and S2 represents volume and reduces key, and S3 represents next Qu Jian, S4 and represents a upper bent key, and S5 represents music stop key; Wherein the resistance value of the resistance of each button branch road increases progressively successively, and such as R1 is 1k, R2 be 2k, R3 be 5k, R4 be 10k, R5 is 10k.
As can be seen here, press different buttons, the resistance sizes between Mike contact and ground is different.Such as when S1 is pressed, comprise resistance R1 between Mike contact and ground, that is, the resistance sizes between Mike contact and ground is 1k; When S2 is pressed, Mike contact comprises with the resistance between ground R1 and the R2 connected, and that is, the resistance sizes between Mike contact and ground is 1+2=3k; When S3 is pressed, Mike contact with comprise the resistance R1, R2 and the R3 that connect between ground, that is, the resistance sizes between Mike contact and ground is 1+2+5=8k; When S4 is pressed, Mike contact with comprise between ground connect resistance R1, R2, R3 and R4, that is, the resistance sizes between Mike contact and ground is 1+2+5+10=18k; When S5 is pressed, Mike contact with comprise between ground connect resistance R1, R2, R3, R4 and R5, that is, the resistance sizes between Mike contact and ground is 1+2+5+10+10=28k.
Therefore, increase button branch road, earphone interface just can be expanded and press bond number accordingly.In addition, no matter GB or American Standard, standard 3.5mm earphone interface is all with MIC signal, and this does the input of line traffic control signal with regard to the Mike's signal designed by this programme and provides hardware foundation when listening to the music, so not only can be cost-saving, and there is very high versatility.
In addition, it is worth mentioning that, the selection of the potential-divider network resistance described by present embodiment merely provides a kind of example, specifically can need depending on platform and the resistance value of the key number that will plan and resistance carries out the design of more refinement.Such as, the resistance of each button branch road also can have identical resistance value, or only designs 3 button branch roads as required, and corresponding volume increases key respectively, volume reduces key and music stop key.
Second execution mode of the present utility model relates to a kind of electronic equipment, comprises application processor, power management chip, and can insert the headset connector of the line control earphone in the first execution mode.
A voltage output pin of the power management chip of electronic equipment is connected to Mike's pin by a divider resistance, make the resistance on this divider resistance and button branch road form dividing potential drop to the output voltage of power management chip, and application processor GPIO pin is connected with Mike's pin of headset connector.When pressing different buttons, GPIO pin can detect different magnitudes of voltage, and according to the magnitude of voltage of setting, application processor just can judge which button is pressed, then perform different operations.
As shown in Figure 2, a GPIO pin of application processor is connected with Mike's pin of headset connector, so the magnitude of voltage of the magnitude of voltage of GPIO pin and Mike's pin is equal.A voltage output pin of power management chip is connected to Mike's pin by a divider resistance R6, and the magnitude of voltage that wherein voltage output pin exports is 1.8 volts.
As shown in Figure 3, such as R1 ~ R6 resistance is respectively 1k, 2k, 5k, 10k, 10k, 5k.When S1 is pressed, comprise resistance R1 between Mike contact and ground, that is when S1 is pressed, the resistance sizes between Mike contact and ground is 1k, and now, the voltage of Mike's tip side just equals 1/ (1+5) * 1.8=0.3V.
When S2 is pressed, Mike contact comprises with the resistance between ground R1 and the R2 connected, that is when S2 is pressed, resistance sizes between Mike contact and ground is (1+2) k, now, the voltage of Mike's tip side equals (1+2)/(1+2+5) * 1.8=0.68V.
When S3 is pressed, Mike contact with comprise the resistance R1, R2 and the R3 that connect between ground, that is when S3 is pressed, resistance sizes between Mike contact and ground is (1+2+5) k, now, the voltage of Mike's tip side equals (1+2+5)/(1+2+5+5) * 1.8=1.1V.
When S4 is pressed, Mike contact with comprise between ground connect resistance R1, R2, R3 and R4, that is when S4 is pressed, resistance sizes between Mike contact and ground is (1+2+5+10) k, now, the voltage of Mike's tip side equals (1+2+5+10)/(1+2+5+5+10) * 1.8=1.41V.
When S5 is pressed, Mike contact with comprise between ground connect resistance R1, R2, R3, R4 and R5, that is when S5 is pressed, resistance sizes between Mike contact and ground is (1+2+5+10+10), and now the voltage of Mike's tip side equals (1+2+5+10+10)/(1+2+5+5+10+10) * 1.8=1.53V.
As can be seen here, press different buttons, make the resistance value that Mike contact resistance is over the ground corresponding different, also just mean, a GPIO pin of application processor can detect different magnitudes of voltage, and at this moment application processor just can carry out the associative operation of music according to the input of different voltage.
Such as corresponding volume increases key respectively, volume reduces key, next Qu Jian, a upper bent key and music stop key to preset S1 to S5 button.When S1 is pressed, the voltage that GPIO pin detects equals 0.3V, and application processor increases the volume of music player; When S2 is pressed, the voltage that GPIO pin detects equals 0.68V, and application processor reduces the volume of music player; When S3 is pressed, the voltage that GPIO pin detects equals 1.1V, and application processor controls music player and plays next song; When S4 is pressed, the voltage that GPIO pin detects equals 1.41V, and application processor controls music player and plays a upper song; When S5 is pressed, the voltage that GPIO pin detects equals 1.53V, and application processor controls music player to be stopped playing music.
It should be noted that, electronic equipment can be mobile phone, also can be panel computer.These two kinds of equipment use electronic equipment the most widely at present, so the utility model has general applicability.
In addition, the magnitude of voltage that voltage output pin described by this programme exports is that the selection of 1.8V and potential-divider network resistance merely provides a kind of example, specifically can carry out the design of more refinement again to voltage and divider resistance depending on platform needs and the key number that will plan.
Be not difficult to find, present embodiment can be worked in coordination with the first execution mode and be implemented.The relevant technical details mentioned in first execution mode is still effective in the present embodiment, in order to reduce repetition, repeats no more here.
Persons of ordinary skill in the art may appreciate that the respective embodiments described above realize specific embodiment of the utility model, and in actual applications, various change can be done to it in the form and details, and do not depart from spirit and scope of the present utility model.
Claims (8)
1. a line control earphone, is characterized in that, described line control earphone comprises Mike contact, and at least 2 button branch roads, and each button branch road comprises resistance and the button of series connection;
Article 1, button branch road is connected between described Mike contact and ground, and other button branch roads are connected in parallel with the button in last bar button branch road successively.
2. line control earphone according to claim 1, is characterized in that, in each button branch road, the resistance value of resistance is identical.
3. line control earphone according to claim 1, is characterized in that, the resistance value of the resistance in each button branch road increases progressively successively.
4. line control earphone according to claim 1, is characterized in that, described line control earphone comprises 3 button branch roads;
Described button is respectively: volume increases key, volume reduces key and music stop key.
5. line control earphone according to claim 1, is characterized in that, described line control earphone comprises 5 button branch roads;
Described button is respectively: volume increases key, volume reduces key, next Qu Jian, a upper bent key and music stop key.
6. an electronic equipment, is characterized in that, comprises: application processor, power management chip, and the headset connector that can insert the line control earphone as described in claim 1 to 5 any one;
A universal input of described application processor exports GPIO pin and is connected with Mike's pin of described headset connector;
A voltage output pin of described power management chip is connected to described Mike's pin by a divider resistance.
7. electronic equipment according to claim 6, is characterized in that, the magnitude of voltage that described voltage output pin exports is 1.8 volts.
8. electronic equipment according to claim 6, is characterized in that, described electronic equipment is smart mobile phone or panel computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520643935.1U CN205017525U (en) | 2015-08-24 | 2015-08-24 | Drive -by -wire earphone and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520643935.1U CN205017525U (en) | 2015-08-24 | 2015-08-24 | Drive -by -wire earphone and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205017525U true CN205017525U (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520643935.1U Expired - Fee Related CN205017525U (en) | 2015-08-24 | 2015-08-24 | Drive -by -wire earphone and electronic equipment |
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| Country | Link |
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| CN (1) | CN205017525U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106131730A (en) * | 2016-08-11 | 2016-11-16 | 歌尔股份有限公司 | A kind of line control earphone |
| CN114827803A (en) * | 2022-03-28 | 2022-07-29 | 荣耀终端有限公司 | Earphone, electronic equipment and earphone key detection method |
-
2015
- 2015-08-24 CN CN201520643935.1U patent/CN205017525U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106131730A (en) * | 2016-08-11 | 2016-11-16 | 歌尔股份有限公司 | A kind of line control earphone |
| CN114827803A (en) * | 2022-03-28 | 2022-07-29 | 荣耀终端有限公司 | Earphone, electronic equipment and earphone key detection method |
| CN114827803B (en) * | 2022-03-28 | 2023-05-09 | 荣耀终端有限公司 | Earphone, electronic equipment and earphone key detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20190824 |