CN207603855U - A kind of Type-C interface headphones - Google Patents
A kind of Type-C interface headphones Download PDFInfo
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- CN207603855U CN207603855U CN201721461938.9U CN201721461938U CN207603855U CN 207603855 U CN207603855 U CN 207603855U CN 201721461938 U CN201721461938 U CN 201721461938U CN 207603855 U CN207603855 U CN 207603855U
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- 239000004065 semiconductor Substances 0.000 claims description 17
- 238000004088 simulation Methods 0.000 abstract description 5
- 101150090280 MOS1 gene Proteins 0.000 description 12
- 101100401568 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) MIC10 gene Proteins 0.000 description 12
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000005236 sound signal Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 230000006641 stabilisation Effects 0.000 description 1
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Abstract
The utility model discloses a kind of Type C interface earphone, the CC pins of the Type C interface of earphone are grounded by pull down resistor, and earphone further includes switching circuit and control switching circuit；Switching circuit is in parallel with pull down resistor, is configured as being grounded CC pins in conducting；Control switching circuit is connect with switching circuit, is configured as the on off operating mode of switching switch circuit.By increasing switching circuit and control switching circuit on earphone, the CC pins of Type C interface to be directly grounded or are grounded by pull down resistor, so as to fulfill analogue communication and the switching of digital communication, compatible analog communicates while digital signal is supported, the problem of distortion is easily disturbed to avoid digital signal, and simulation source of sound is more rich, fidelity performance is more preferably.
Description
Technical field
The utility model is related to a kind of Type-C interface headphones.
Background technology
With the rise of Type-C interfaces, occur more and more Type-C interface equipments in the market, such as mobile phone peace
Plate computer etc., the earphone of corresponding Type-C interfaces also more and more occur on the market.
However, the earphone of Type-C interfaces common on existing market is usually digital communication, but due to nowadays social
Electronic equipment use is more and more wider under environment, and the electronic interferences of formation are also increasingly severe, and digital communication is easily by external interference,
Lead to data packetloss and distortion occur, earphone is made staccato phenomenon easily occur, be damaged the sound quality of earphone, influence user and use body
It tests.Meanwhile because the earphone of Type-C interfaces just rises, the digital tone source to match therewith also more rare (especially high guarantor
True source of sound), and influenced again by digital signal samples rate, since sample rate is lower, signals revivification degree is lower, causes audio literary
Part distortion is serious, influences user experience.If earphone uses analogue communication, can be to avoid distortion is disturbed the problem of, and
Using simulation source of sound, audio signal fidelity performance is more preferably.
Therefore, to solve the above-mentioned problems, it is desirable to provide a kind of earphone of new Type-C interfaces, to realize that Type-C connects
The handoff functionality of digital communication and the analogue communication of mouth earphone.
Utility model content
In view of the problem of prior art Type-C interface headphones are easily disturbed distortion using digital communication, it is proposed that this practicality
Novel a kind of Type-C interface headphones, to overcome the above problem or to solve the above problems at least partly.
To achieve these goals, the utility model employs following technical solution：
A kind of Type-C interface headphones, the CC pins of the Type-C interfaces of the earphone are grounded by pull down resistor, described
Earphone further includes switching circuit and control switching circuit；
The switching circuit is in parallel with the pull down resistor, is configured as being grounded the CC pins in conducting；
The control switching circuit is connect with the switching circuit, is configured as switching the break-make shape of the switching circuit
State.
Optionally, the switching circuit includes metal-oxide-semiconductor, and the CC of the drain electrode connection Type-C interfaces of the metal-oxide-semiconductor draws
Foot, the source electrode ground connection of the metal-oxide-semiconductor, the grid of the metal-oxide-semiconductor connect the control switching circuit.
Optionally, the metal-oxide-semiconductor is N-MOSFET or P-MOSFET.
Optionally, the control switching circuit includes switching key and codec, and the control of the codec inputs
End is connect with the switching key, and the control output end of the codec is connect with the switching circuit.
Optionally, the switching key is self-locking button, and one end is grounded, and the other end connects the control of the codec
Input terminal processed.
Optionally, the codec is also connect with the microphone of the earphone, left speaker and right loud speaker.
Optionally, earphone control button is also set up on the earphone, the earphone control button connects with the codec
It connects.
Optionally, the earphone control button, including volume increment key, volume-down keys, pause button and connection/
It is one or more in hang-up button.
Optionally, the earphone control button is no locking-type button, and one end is grounded, and the other end connects the encoding and decoding
Device.
Optionally, the connection relation of the Type-C interfaces of the Type-C interfaces and media termination of earphone is：
Vbus pins, D+ pins, D- pins, GND pin and the CC pins of the Type-C interfaces of the earphone correspond to respectively
It is connect with Vbus pins, D+ pins, D- pins, GND pin and the CC pins of the Type-C interfaces of media termination.
In conclusion the beneficial effects of the utility model are：
By increasing switching circuit and control switching circuit on earphone, the CC pins of Type-C interfaces are directly grounded
Or be grounded by pull down resistor, so as to fulfill analogue communication and the switching of digital communication, it is compatible with while digital signal is supported
Analogue communication, the problem of distortion is easily disturbed to avoid digital signal, and simulate that source of sound is more rich, and fidelity performance is more preferably.
Description of the drawings
Fig. 1 is Type-C interfaces and 3.5 millimeters of audio interface connection relationship diagrams；
Fig. 2 is a kind of Type-C interface headphones structure diagram that the utility model one embodiment provides；
Fig. 3 is that connection when a kind of Type-C interface headphones that the utility model one embodiment provides are connect with mobile phone is shown
It is intended to.
Specific embodiment
It is new to this practicality below in conjunction with attached drawing to make the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
Fig. 1 show Type-C interfaces and 3.5 millimeters of audio interface connection relationship diagrams, positive and negative due to needing to support
It inserts, therefore Type-C interfaces include A faces and B faces, the pin type in A faces and B faces is identical, in figure, sense channel CC1/CC2
Link together use, by detecting whether the pull down resistor in the presence of ground connection, the number and analogue communication mould of logic decision interface
Formula.
Based on this, the technical concept of the utility model is, by increasing switching circuit on Type-C interface headphones and cutting
Control circuit is changed, by switching circuit and the pull down resistor earth of CC pins (including CC1 and CC2), passes through switching switch electricity
The break-make on road so that CC pins switch between being directly grounded and being grounded by pull down resistor, to realize digital communication and simulation
The switching of communication pattern.
Fig. 2 is a kind of Type-C interface headphones structure diagram that the utility model one embodiment provides, such as Fig. 2 institutes
Show, a kind of Type-C interface headphones 100, the CC pins of the Type-C interfaces 110 of earphone 100 are grounded by pull down resistor 120, ear
Machine 100 further includes switching circuit 130 and control switching circuit 140.
Switching circuit 130 is in parallel with pull down resistor 120, is grounded CC pins when being configured in conducting.
Control switching circuit 140 is connect with switching circuit 130, is configured as the on off operating mode of switching switch circuit 130.
The operation principle of the utility model earphone 100 is：By user's Self-operating as desired, pass through switching control electricity
Road 140 controls the conducting of switching circuit 130 and disconnection, so that the CC pins of earphone Type-C interfaces 110 are directly grounded
Or it is grounded by pull down resistor 120.When CC pins are directly grounded, earphone 100 realizes analogue communication by Type-c interfaces 110,
Transmission of analogue signal；When CC pins are grounded by pull down resistor 120, earphone 100 realizes that number is logical by Type-c interfaces 110
Letter transmits digital signal.Analogue communication can easily be disturbed the problem of distortion to avoid digital signal, and use simulation source of sound, money
Source is more rich, and audio signal fidelity performance is more preferably.
Fig. 3 is that connection when a kind of Type-C interface headphones that the utility model one embodiment provides are connect with mobile phone is shown
It is intended to, and the connection diagram in Type-C interface headphones has been shown in particular.
As shown in figure 3, the pull down resistor 120 of the Type-C interfaces 110 of earphone 100 is R1, switching circuit 130 includes MOS
The CC pins of the drain electrode connection Type-C interfaces of pipe MOS1, metal-oxide-semiconductor MOS1, the source electrode ground connection of metal-oxide-semiconductor MOS1, metal-oxide-semiconductor MOS1's
Grid connects control switching circuit 140.
In the embodiment shown in fig. 3, metal-oxide-semiconductor MOS1 is N-MOSFET, i.e., is connected when grid connects high level, connects low electricity
Usually disconnect.Understandably, P-MOSFET can also be used in metal-oxide-semiconductor MOS1, adaptably, needs to adjust control switching circuit
140 control signal, i.e. grid are connected when connecting low level, are disconnected when connecting high level.
In some embodiments of the utility model, control switching circuit 140 includes switching key and codec, compiles solution
The control signal of code device is connect with switching key, and the control output end of codec is connect with switching circuit 130.Specifically scheming
In 3 illustrated embodiments, the control output end of codec is connected to the grid of metal-oxide-semiconductor MOS1, by exporting high level or low electricity
Flat, control metal-oxide-semiconductor MOS1's is turned on or off.Specifically, the MCU controls of control switch mode are provided in the codec
Device, which exports corresponding low and high level according to the pressing signal of switching key, to control MOS1's to lead on-off
It opens.The MCU controllers are known to those skilled in the art, details are not described herein its operation principle.
In some embodiments of the utility model, switching key is self-locking button, that is, its state maintains when pressing, real
The stabilization of earphone communication pattern after now switching, switching key one end ground connection, the other end connect the control signal of codec.
In some embodiments of the utility model, microphone, left speaker and the right side that codec is also connected with earphone are raised
Sound device, as shown in Figure 3.The codec realizes digital signal and analog signal when Type-C interfaces are switched to digital communication
Conversion, to realize the broadcasting of audio signal and acquisition, when Type-C interfaces are switched to analogue communication, realize analog signal pass
It is defeated to be transferred to media termination to left and right loud speaker or from microphone, the problem of distortion is easily disturbed to avoid digital signal.
In some embodiments of the utility model, also set up earphone control button on earphone 100, earphone control button with
Codec connects, as shown in Figure 3.
In some embodiments of the utility model, earphone control button is pressed including volume increment key, volume down
It is one or more in key, pause button and connection/hang-up button.As shown in figure 3, including volume+button and volume-button,
Pause/talk button is used as pause function when playing audio, is used as connecting/hanging up function in call.Certainly, the control of earphone
Button processed is not limited to this, other can realize that the control button of earphone control function can be increased in the utility model, herein
It repeats no more.
In some embodiments of the utility model, earphone control button is no locking-type button, i.e., provides and touch when it is pressed
It signals, automatically resets after release, one end ground connection, other end connection codec.
In some embodiments of the utility model, as shown in figure 3, the Type-C interfaces of earphone and media termination
The connection relation of Type-C interfaces is：
Vbus pins, D+ pins, D- pins, GND pin and the CC pins of the Type-C interfaces of earphone correspond to respectively and matchmaker
Vbus pins, D+ pins, D- pins, the GND pin of the Type-C interfaces of body terminal are connected with CC pins.
With reference to embodiment illustrated in fig. 3, illustrate the operation principle of the utility model earphone：
By original state Type-C for for digital communication, initially output is low level to encoder, and MOS1 is disconnected, CC pins
It is grounded through pull down resistor R1.When pressing switching key, MOS1 is connected in codec output high level, and CC pins are pulled low,
And pull down resistor R1 is short-circuited, CC pins are directly grounded, and Type-C interface conversions are analogue communication at this time, while media termination
(mobile phone) exports analog signal, and analog signal is directly output to left and right loud speaker, and the analog signal of microphone is directly defeated from earphone
Go out to mobile phone, can avoid the problem that digital signal is easily disturbed distortion, additionally it is possible to using simulation source of sound, make audio signal fidelity
It can be more preferably.When pressing switching key again, codec restores output low level, disconnects MOS1, and CC pins are by drop-down electricity
Resistance ground connection, at this time Type-C interface conversions be digital communication, media termination (mobile phone) output digit signals, codec realize number
The mutual conversion of word signal and analog signal.By alternately pressing switching key, the control output end for making codec is defeated successively
Go out high level and low level, can realize the switching of the analogue communication of the utility model earphone and digital communication, make the use of earphone
Pattern is more preferably flexible.
In addition, the volume adjustment of earphone, the connection/hang up when playing pause and call can be by corresponding control buttons
It is controlled.
The above, only specific embodiment of the present utility model, under the above-mentioned introduction of the utility model, this field
Technical staff can carry out other improvement or deformation on the basis of above-described embodiment.It will be understood by those skilled in the art that
Above-mentioned specific descriptions only preferably explain the purpose of this utility model, and the scope of protection of the utility model should be with claim
Protection domain subject to.
Claims (10)
1. a kind of Type-C interface headphones, the CC pins of the Type-C interfaces of the earphone are grounded by pull down resistor, feature
It is, the earphone further includes switching circuit and control switching circuit；
The switching circuit is in parallel with the pull down resistor, is configured as being grounded the CC pins in conducting；
The control switching circuit is connect with the switching circuit, is configured as switching the on off operating mode of the switching circuit.
2. Type-C interface headphones as described in claim 1, which is characterized in that
The switching circuit includes metal-oxide-semiconductor, and the drain electrode of the metal-oxide-semiconductor connects the CC pins of the Type-C interfaces, the metal-oxide-semiconductor
Source electrode ground connection, the grid of the metal-oxide-semiconductor connects the control switching circuit.
3. Type-C interface headphones as claimed in claim 2, which is characterized in that
The metal-oxide-semiconductor is N-MOSFET or P-MOSFET.
4. Type-C interface headphones as described in claim 1, which is characterized in that
The control switching circuit includes switching key and codec, the control signal of the codec and the switching
By key connection, the control output end of the codec is connect with the switching circuit.
5. Type-C interface headphones as claimed in claim 4, which is characterized in that
The switching key is self-locking button, and one end is grounded, and the other end connects the control signal of the codec.
6. Type-C interface headphones as claimed in claim 4, which is characterized in that
The codec is also connect with the microphone of the earphone, left speaker and right loud speaker.
7. Type-C interface headphones as claimed in claim 6, which is characterized in that
Earphone control button is also set up on the earphone, the earphone control button is connect with the codec.
8. Type-C interface headphones as claimed in claim 7, which is characterized in that
The earphone control button, including in volume increment key, volume-down keys, pause button and connection/hang-up button
It is one or more.
9. Type-C interface headphones as claimed in claim 7, which is characterized in that
The earphone control button is no locking-type button, and one end is grounded, and the other end connects the codec.
10. such as claim 1-9 any one of them Type-C interface headphones, which is characterized in that the Type-C of the earphone connects
Mouthful and the connection relations of the Type-C interfaces of media termination be：
Vbus pins, D+ pins, D- pins, GND pin and the CC pins of the Type-C interfaces of the earphone correspond to respectively and matchmaker
Vbus pins, D+ pins, D- pins, the GND pin of the Type-C interfaces of body terminal are connected with CC pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721461938.9U CN207603855U (en) | 2017-11-06 | 2017-11-06 | A kind of Type-C interface headphones |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721461938.9U CN207603855U (en) | 2017-11-06 | 2017-11-06 | A kind of Type-C interface headphones |
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| Publication Number | Publication Date |
|---|---|
| CN207603855U true CN207603855U (en) | 2018-07-10 |
Family
ID=62758842
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721461938.9U Active CN207603855U (en) | 2017-11-06 | 2017-11-06 | A kind of Type-C interface headphones |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109218922A (en) * | 2018-08-27 | 2019-01-15 | 维沃移动通信有限公司 | Control method, terminal and the audio signal output device of output audio signal |
| CN110783777A (en) * | 2018-07-12 | 2020-02-11 | 中兴通讯股份有限公司 | An anti-interference method, device and system |
| CN111141424A (en) * | 2019-12-31 | 2020-05-12 | 中国科学院微电子研究所 | Differential Capacitive Pressure Detection Device |
| CN111698614A (en) * | 2020-05-25 | 2020-09-22 | 歌尔光学科技有限公司 | Audio output circuit and electronic equipment |
| CN112235692A (en) * | 2020-10-15 | 2021-01-15 | 维沃移动通信有限公司 | Audio switching circuit, electronic device and audio switching method |
| CN113316057A (en) * | 2021-05-28 | 2021-08-27 | 维沃移动通信有限公司 | Earphone, method and device for reducing power consumption and electronic equipment |
| CN114124079A (en) * | 2020-08-31 | 2022-03-01 | 华为技术有限公司 | Interface circuit, interface circuit protection method and terminal equipment |
| CN114630230A (en) * | 2022-05-12 | 2022-06-14 | 荣耀终端有限公司 | Electronic equipment, pull-up circuit and method for suppressing earphone POP sound |
-
2017
- 2017-11-06 CN CN201721461938.9U patent/CN207603855U/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110783777A (en) * | 2018-07-12 | 2020-02-11 | 中兴通讯股份有限公司 | An anti-interference method, device and system |
| CN110783777B (en) * | 2018-07-12 | 2022-02-18 | 中兴通讯股份有限公司 | Anti-interference method, device and system |
| CN109218922A (en) * | 2018-08-27 | 2019-01-15 | 维沃移动通信有限公司 | Control method, terminal and the audio signal output device of output audio signal |
| CN111141424A (en) * | 2019-12-31 | 2020-05-12 | 中国科学院微电子研究所 | Differential Capacitive Pressure Detection Device |
| CN111141424B (en) * | 2019-12-31 | 2022-10-21 | 中国科学院微电子研究所 | Differential capacitance type pressure detection device |
| CN111698614B (en) * | 2020-05-25 | 2021-10-26 | 歌尔光学科技有限公司 | Audio output circuit and electronic equipment |
| CN111698614A (en) * | 2020-05-25 | 2020-09-22 | 歌尔光学科技有限公司 | Audio output circuit and electronic equipment |
| CN114124079A (en) * | 2020-08-31 | 2022-03-01 | 华为技术有限公司 | Interface circuit, interface circuit protection method and terminal equipment |
| WO2022042199A1 (en) * | 2020-08-31 | 2022-03-03 | 华为技术有限公司 | Interface circuit, protection method for same, and terminal device |
| CN112235692B (en) * | 2020-10-15 | 2022-02-15 | 维沃移动通信有限公司 | Audio switching circuit, electronic equipment and audio switching method |
| CN112235692A (en) * | 2020-10-15 | 2021-01-15 | 维沃移动通信有限公司 | Audio switching circuit, electronic device and audio switching method |
| CN113316057A (en) * | 2021-05-28 | 2021-08-27 | 维沃移动通信有限公司 | Earphone, method and device for reducing power consumption and electronic equipment |
| CN113316057B (en) * | 2021-05-28 | 2024-01-16 | 维沃移动通信有限公司 | Headphones, methods, devices and electronic equipment for reducing power consumption |
| CN114630230A (en) * | 2022-05-12 | 2022-06-14 | 荣耀终端有限公司 | Electronic equipment, pull-up circuit and method for suppressing earphone POP sound |
| US12445774B2 (en) | 2022-05-12 | 2025-10-14 | Honor Device Co., Ltd. | Electronic device, pull-up circuit, and method for suppressing pop sound of earphone |
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