CN206042296U - Many function combination earphone - Google Patents
Many function combination earphone Download PDFInfo
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- CN206042296U CN206042296U CN201621032085.2U CN201621032085U CN206042296U CN 206042296 U CN206042296 U CN 206042296U CN 201621032085 U CN201621032085 U CN 201621032085U CN 206042296 U CN206042296 U CN 206042296U
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- earphone
- daughter board
- handset
- earplug
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Abstract
The utility model provides a many function combination earphone, it includes: audio frequency owner plug, left earplug, auris dextra stopper and tapping plate, tapping plate comprises three daughter board swing joint, and three daughter board passes through being connected with audio frequency owner plug, left earplug, auris dextra stopper of audio line one -to -one, constitutes bottom machine, left parasite aircraft, right parasite aircraft respectively, be equipped with two above signal interface in the three daughter board on at least one daughter board for handshaking and switching between the daughter board, and be equipped with auxiliary function module in a parasite aircraft in left parasite aircraft or the right parasite aircraft, single track bluetooth headset is formed after breaking away from the bottom board to this parasite aircraft, and the wired earphone of single track is formed with the bottom board to the another one parasite aircraft. The utility model discloses a multiple combination between the three parasite aircraft, with wired earphone, wireless earphone, charge / data line knot together, on guaranteeing original earphone function basis, expand multiple application functions such as a bluetooth headset, saved raw and other materials and portable greatly.
Description
Technical field
The utility model is related to technical field of electronic products, especially a kind of multifunctional combination earphone.
Background technology
Traditional wire earphone is usually that audio jack (such as 4 line of typical round, USB/ lightning interfaces etc.) passes through tone frequency channel wire
Control panel (including microphone, line control machine for actuation of keys is uploaded into main frame) is connected to, and left and right ear is further connected to as solid
Sound is answered, and constitutes a complete wired line control earphone.And bluetooth earphone receives generally by bluetooth transceiver and transmitting is penetrated
Frequency signal, is connected to audio process and is followed by microphone and earplug for processing audio signal, and complete bluetooth earphone also includes
Battery and power management, general bluetooth earphone can be monaurals or stereo.It is due to the excellent tonequality of traditional wire earphone, resistance to
With, the advantages of inexpensive, it is widely used, simultaneously as the convenience of bluetooth earphone, which has also obtained widely should
With.Although this respectively has pluses and minuses due to both earphones, their basic function is similar to, but the occasion of application is different.
Often also need to carry patchcord for charging and data transfer additionally, due to portable electric appts Jing.If while carrying them
Three kinds again very inconvenient.
Utility model content
For solving above-mentioned technical problem, the utility model provides a kind of multifunctional combination earphone, by wired earphone, wireless ear
Machine, charging/data wire are combined together, and on the basis of original ear-phone function is ensured, expand various application work(such as bluetooth earphone
Can, greatly save raw material and be easy to carry.
A kind of multifunctional combination earphone, which includes：The main plug of audio frequency, left earplug, right earplug and tapping plate, tapping plate is by three
Individual daughter board is movably connected to form, and three daughter boards are connected with the main plug of audio frequency, left earplug, right earplug correspondingly by tone frequency channel wire
Connect, respectively constitute bottom machine, left handset, right handset, at least one daughter board is provided with two or more signal in three daughter boards
Interface, for the signal exchange between daughter board and switching；And a handset is provided with supplemental functionality in left handset or right handset,
The handset constitutes single sound channel bluetooth headset after departing from bottom plate, and another handset constitutes monophonic wired earphone with bottom plate.
Preferably, if composition single sound channel bluetooth headset for left handset, then left daughter board is provided with a pair of jacks electricity
Pole L and G, the L channel for connecting its left earplug and bluetooth earphone master chip are exported, and are additionally provided with a pair of jacks electrode R and G, are used
In the R channel output of connection bluetooth earphone master chip；
Right daughter board is provided with a pair of contact pins electrode R and G, for connecting right earplug；Bottom plate is provided with a pair of contact pins L and G
With a pair of jacks electrode R and G, by the holding wire direct or indirect connection of tone frequency channel wire and the main plug of audio frequency.
Further, when left daughter board is extracted, right daughter board keeps being connected with bottom plate, and now left handset is independent as monophonic
Bluetooth earphone use；Right handset and bottom machine keep connection, used as monophonic wired earphone.
Further, the right daughter board of left daughter board is connected with each other and when bottom plate is extracted, and left handset and right handset are used as stereo
Campaign-styled I tech clip S use；Bottom machine is independent as interface line, data wire or charging wire.
Further, left daughter board, right daughter board, bottom plate are mutually extracted, and now left handset is used as monaural bluetooth earphone
Use, right handset is used as simple earplug, and bottom plate is then as patchcord, data wire or charging wire.
Preferably, bottom machine, left handset or right handset are additionally provided with other supplemental functionalities, in independent use
Shi Shixian expanded functions.
Further, other supplemental functionalities include memory, read-write cell, audio codec, bluetooth unit,
Microprocessor, battery, input/output device, wire/wireless transceiver, GPS devices, touch feedback device, display, sensing
Device, driver, actuator, TRT, photovoltaic cell, speedometer, electronic compass, magnetometer, gyroscope, thermometer, humidity
Meter, barometer, sphygmomanometer, sweat juice sensor, sphygmometer, blood-glucose meter, vibrator, photometer, antenna, interface detection/converter,
One or more in loudspeaker, earplug, microphone, camera, tracking pulley/cunning ball, touch sensor, pressure gauge, LED.
Preferably, microphone/button is additionally provided with right daughter board or bottom plate.
Preferably, when three daughter boards are connected with each other, left handset is conventional stereo sound wired earphone.
Preferably, the multifunctional combination earphone also includes：The line traffic control plate of line traffic control function is realized, or is directly utilized
In bottom machine, left handset, right handset, any one daughter board realizes line traffic control function.
The beneficial effects of the utility model are,
By the flexible connection of three daughter boards, each multifunctional combination earphone can be lifted by the replacement of other daughter boards
Service life.It is on the basis of flexible connection, four-dimensional by dissipating, by the separately or combined use of three daughter boards, coordinate auxiliary
The flexible design of functional module, not only realizes the multiplexing of the partial function device of wired and wireless headset, but also can be real
Now the function of charging/data wire and interface conversion, further expands even with supplemental functionality, is such as directed to blood sugar disease patient
Supplemental functionality is designed as into blood-glucose meter, supplemental functionality is designed as into electronic compass for mountaineering person, for race
Supplemental functionality is designed as speedometer etc. by step fan, more multi-functional to realize this multifunctional combination earphone.
Description of the drawings
With reference to the accompanying drawings and examples the utility model is further illustrated.
Fig. 1 is multifunctional combination earphone schematic diagram of the present utility model.
Fig. 2 a- Fig. 2 c are multifunctional combination earphone tapping plate connection diagrams of the present utility model.
Fig. 3 a- Fig. 3 c are three kinds of exemplary application maps of multifunctional combination earphone of the present utility model.
Specific embodiment
The utility model is described in further detail presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram,
Basic structure of the present utility model is only illustrated in a schematic way, therefore which only shows the composition relevant with the utility model.
As shown in figure 1, multifunctional combination earphone of the present utility model include the main plug of audio frequency (can be circular 4 line plug,
USB or lightning interface etc.), tone frequency channel wire (can be the electric wire of traditional only transmission simulated audio signal rank, or have
The electric wire of transmission data/charge level, or various combination), the main plug of audio frequency is connected to a tapping plate by tone frequency channel wire, and
Tapping plate is connected to left and right earplug by tone frequency channel wire.The dismountable daughter board composition of tapping plate at least 3, it is including bottom plate (B), left
Daughter board (L) and right daughter board (R), wherein bottom plate (B) are connected to the main plug of audio frequency, left daughter board (L) and right daughter board point by tone frequency channel wire
Left earplug and right earplug are not connected to by tone frequency channel wire.At least left earplug/tone frequency channel wire/left daughter board constitutes left handset, at least right earplug/
Tone frequency channel wire/left daughter board constitutes right handset, at least main plug of audio frequency, and tone frequency channel wire and middle daughter board constitute bottom machine.
On the bottom of tapping plate/left/right daughter board, at least including a standard or non-standard signaling interface, wherein at least one
Individual daughter board at least includes two signaling interfaces, for the signal exchange between each daughter board and switching, such as electric signal by contact pin/
Jack electrode, convex-concave electrode, USB male and females, lightning male and female；Also at least include mechanical fixed structure on daughter board, such as convex-concave interlocks,
Positive and negative attracting etc. the mechanical interface of magnetic pole, for interfixing between daughter board key.Connected mode between bottom/left/right daughter board
Can be various combination, series-parallel, the string stacked type as shown in each subgraph in Fig. 2 a- Fig. 2 c, stacked and string data etc..Each
At least two electrode external connections of signaling interface on daughter board, for the connection between each daughter board and transmission simulation and/or number
Word audio signal.Such as transmission simulation left/right sound channel/microphone signal, or transmission digital audio and video signals are such as with I2S, USB
Agreement or self-defining digital audio protocol are exchanged with each other audio signal, or transmission non-audio data/control signal is (such as single
Line data signal, multi-thread I2C, self-defined host-host protocol, in analogue audio frequency line transmitting data agreement).
Also include supplemental functionality in left and/or right handset and/or bottom machine, for further expanding combination earphone
Function.Supplemental functionality includes memory, read-write cell, audio codec, bluetooth unit, microprocessor, battery, defeated
Enter/output device, wire/wireless transceiver, GPS devices, touch feedback device, display, sensor, driver, actuator,
TRT, photovoltaic cell, speedometer, electronic compass, magnetometer, gyroscope, thermometer, hygrometer, barometer, sphygmomanometer,
Sweat juice sensor, sphygmometer, blood-glucose meter, vibrator, photometer, antenna, interface detection/converter, loudspeaker, earplug, microphone,
One or more in camera, tracking pulley/cunning ball, touch sensor, pressure gauge, LED.Supplemental functionality can be
Any position of each handset, in such as daughter board, or in earplug, or on tone frequency channel wire, plug is medium.Wherein, bottom machine and it is left and
Or right handset can independently realize that function is realized in function or combination：Include realizing the institute needed for bluetooth earphone in left and/or right handset
Some element (such as bluetooth transmitting-receiving, audio frequency process, battery etc.), so as to left or right handset is independent as a monophonic bluetooth ear
Machine is used, and further right or left handset independently can be answered earphone as simple monophonic and be used or insert opposite side left/right
Handset composition stereo double channel bluetooth earphone is used；Bottom machine can be with reference to connecing on the different main plug of audio frequency and bottom plate
Mouthful type realizes interface line, transfers such as from audio frequency round end to USB, USB to apple lightning, or USB is to nonstandard contact pin/insert
Hole etc., for functions such as data exchange, chargings.
Further, the application proposes new application and extension thinking, and concrete function is realized being capable of achieving by prior art,
It is not described in detail one by one again：Such as, there is a button at least one daughter board, for controlling volume, receive calls, and combination ear
Control of other functions on machine etc.；There is microphone at least one daughter board and have sound inlet/seam；Or can also have a line traffic control plate,
On left or right tone frequency channel wire.
Shown in Fig. 3 a- Fig. 3 c, have on the downside of left daughter board inside a pair of jack electrode L/G and connect its left earplug and bluetooth earphone
The L channel output of master chip, also has the R channel for connecting its bluetooth earphone master chip inside a pair of jack electrode R/G on the right side of which
Output；The side of right daughter board has inside a pair of contact pin electrode R/G and connects right earplug；And there are a pair of contact pin L/G the top side of bottom plate
With a pair of jack electrode R/G, inside is by tone frequency channel wire direct (such as suitable for analog interface earphone) or indirectly (suitable for numeral
Interface headphones) it is connected with the holding wire of the main plug of audio frequency.Can also further there is microphone at least one daughter board, for leading to
Words are used.If three daughter boards are connected with each other, prohibition unit molecule machine function, the bluetooth earphone function of such as left handset, Ke Yishi
Existing conventional stereo sound wired earphone, line traffic control plate that further can also be extra or realizes line traffic control function using daughter board.
When being that left daughter board is extracted in Fig. 3 a, the right side/bottom plate keeps connection, if now left handset is independently operated, which and includes
The required components and parts of bluetooth earphone, then be that monaural bluetooth earphone or other miscellaneous functions are used；Right handset and bottom machine are protected
Connection is held, then the monophonic wired earphone or other miscellaneous functions for forming a long line is used.May be used also on right daughter board or bottom plate
To there is microphone/button.
It is connected with each other for left/right daughter board in Fig. 3 b and bottom plate is extracted, such left and right handset forms a stereosonic fortune
Dynamic formula I tech clip S and/or other miscellaneous functions are used；Simultaneously bottom machine then can as interface line/data wire/
Charging wire or other miscellaneous functions are used.
Mutually extract for left/right/bottom plate in Fig. 3 c, now left handset is used for monaural bluetooth earphone, right son
Machine is used (if no microphone or line control machine on daughter board) as simple earplug, bottom plate then as patchcord/data wire/
Charging wire.Other miscellaneous functions can also be realized on each same daughter board.
Content is all that simulated audio signal is accessed from the main plug of audio frequency above, used as extension thinking：The main plug of audio frequency is also
Transmission digital audio and video signals can be exchanged (such as with VDD, D-, D+, the GND of USB format, or other digital sounds with insertion main frame
Transmission I2S of frequency form etc.), by DAB is converted into analog audio using digital audio codec on combination earphone
Earplug and microphone is driven after frequency；According to digital audio codec on different daughter boards, the line between each daughter board can
Being whole transmission simulated audio signals (assuming codec on bottom plate), or part number/simulated audio signal (coding
On left daughter board, left bottom plate transmits DAB, left and right daughter board transmission analogue audio frequency to device).
Further, plug and/or the main plug plug of audio frequency between daughter board is detected at least one daughter board of multifunctional combination earphone
Detecting module, such as mechanical compression switch and/or electronic switch and/or analog/digital signal generation/identification/loaded circuit,
Or raw identification voltage etc. is produced by simple pullup/pulldown/divider resistance combination.Detecting module can detect/load daughter board
The characteristic signal of the characteristic signal of the tone frequency channel wire of interface or additional control line, the result of detection of detecting module can be used to know
The plug of small pin for the case plate is used for controlling the switch/selection of the function element on earphone simultaneously, such as by a certain sound of bluetooth master chip
The output of road signal is set to high-impedance state etc..Characteristic signal can be dead level, high/low or a certain fixed value, or dynamic pulse
That is Serial No., or the just profound signal of the different frequency of the change of simulation, triangular wave etc..
Certainly, the communication between daughter board, can pass through single-wire-protocol (OW, SPW) or multi-thread I2C or off-gauge simulation sums
Word communications protocol etc., can be communicated supplemented by other daughter boards based on a daughter board, or simple broadcast type communication；Detection line
Can share with tone frequency channel wire.
After above-mentioned art solutions are proposed, above-mentioned technical proposal can be implemented by existing method, specifically
Any implementation method be not the application key, the protection domain of the application is the several functions combination for proposing, to solve
In existing prior art, earphone uses single function, and the more and more various accessories for bringing of electronic product are disorderly and unsystematic, carry not
Just problem.
The control using method that above-mentioned technical proposal is related to, is briefly described as follows：
When two daughter boards are mutually inserted/extracted, it is mutually distinguishable by daughterboard interface detection, and daughter board is controlled according to result of detection
On audio-frequency function module and/or supplemental functionality switch/setting/selection etc., when left daughter board detect it is directly or indirectly logical
When crossing right daughter board and inserting/extract bottom plate, the part or all of function of left daughter board prohibiting/enabling its bluetooth earphone such as disconnects/
Connect its L channel output driving left earplug, and/or prohibiting/enabling other supplemental functionalities.
Be inserted directly into when left daughter board is only detected/when extracting right daughter board, left daughter board enables/forbids the right sound of its bluetooth earphone
Road output driving right earplug, and/or prohibiting/enabling other supplemental functionalities.
When left and right daughter board is connected, when left daughter board detects bottom plate and inserts/extract, left daughter board then prohibiting/enabling which is blue
The part or all of function of tooth earphone, such as off/on its left/right sound channel output driving left/right earplug, and/or forbid/make
Can other supplemental functionalities.
When right daughter board is connected with bottom plate, left daughter board detect with they one of insertion/extract when, left daughter board is then prohibited
Only/and the part or all of function of its bluetooth earphone is enabled, such as disconnect its left/right or connect its L channel output driving earplug；
And/or prohibiting/enabling other supplemental functionalities.
When three daughter boards or left/right daughter board are connected with bottom plate, combination earphone includes automatically or control starts realization manually
Wired (when the main plug of audio frequency inserts main frame) of the non-audio data between main frame or switched wireless, such as by combination earphone
Sensing data is uploaded, or by the combination of the function of combination earphone upload or main frame to passing under combination earphone functional requirement,
When three daughter boards or left/right daughter board are connected with bottom plate, notify main frame on combination earphone battery charge and its
Its functional module is powered, and such as notifying to arrange with upload information during analogue audio frequency plug strengthens main frame MIC lines driving force or number
Start USBotg during word audio jack and unlatching driving vdd line is set.
When three daughter boards or left/right daughter board are connected with bottom plate, manually or according to the survey of the functional module on combination earphone
Measure size of data to start/arrange/select the functional module on combination earphone, such as when battery electric quantity is low or accelerometer sensing
When device detects certain deliberate action, can startup power supply management module and notify insert main frame for combination earphone battery or its
Its module for power supply, or start the such as monitoring of sound/optical electrical etc. of other functional modules.
When three daughter boards or left/right daughter board are connected with bottom plate, when the main plug of audio frequency inserts main frame, when in wired earphone
Call/listening mode when, extract left daughter board or when left and right daughter board is extracted together, then bottom plate notifies mian engine changeover to bluetooth ear
Machine call mode, left daughter board are automatically turned on bluetooth earphone and are connected call/audition for realizing bluetooth earphone with main frame.And work as left son
When plate reinserts bottom plate, then left daughter board is closed the part or all of function of bluetooth earphone and notifies mian engine changeover to wired earphone
Call/listening mode.
When audio frequency main plug insertion main frame, with bottom plate insert/extract for non-left/right daughter board miscellaneous equipment when,
When the external miscellaneous equipment of bottom plate detection, such as power supply or other external equipments or another main frame, control arranges/configuration bottom plate
Mode of operation, and notify/coordinate the automatically selecting of the such as USBotg patterns such as data exchange and charging direction of terminal device/
Arrange.
With it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, by above-mentioned description, related work people
Member can carry out various change and modification completely in the range of without departing from this utility model technological thought.This reality
The content being not limited to new technical scope on specification, it is necessary to determine its technology according to right
Property scope.
Claims (10)
1. a kind of multifunctional combination earphone, it is characterised in that include：The main plug of audio frequency, left earplug, right earplug and tapping plate, point
Fishplate bar is movably connected to form by three daughter boards, three daughter boards by tone frequency channel wire correspondingly with the main plug of audio frequency, left earplug, the right side
Earplug connect, respectively constitute bottom machine, left handset, right handset, in three daughter boards at least one daughter board be provided with two with
Upper signaling interface, for the signal exchange between daughter board and switching；And a handset is provided with auxiliary work(in left handset or right handset
Energy module, the handset constitute single sound channel bluetooth headset after departing from bottom plate, and another handset is had with bottom plate composition monophonic
Line earphone.
2. multifunctional combination earphone as claimed in claim 1, it is characterised in that set composition single sound channel bluetooth headset as left son
Machine, then left daughter board be provided with a pair of jacks electrode L and G, the L channel for connecting its left earplug and bluetooth earphone master chip is defeated
Go out, be additionally provided with a pair of jacks electrode R and G, the R channel for connecting bluetooth earphone master chip is exported；
Right daughter board is provided with a pair of contact pins electrode R and G, for connecting right earplug；Bottom plate is provided with a pair of contact pin L and G and
To jack electrode R and G, by tone frequency channel wire and the holding wire direct or indirect connection of the main plug of audio frequency.
3. multifunctional combination earphone as claimed in claim 2, it is characterised in that when left daughter board is extracted, right daughter board and bottom plate
Connection is kept, now left handset is independently used as monaural bluetooth earphone；Right handset and bottom machine keep connection, used as list
Sound channel wired earphone.
4. multifunctional combination earphone as claimed in claim 2, it is characterised in that the right daughter board of left daughter board is connected with each other and bottom plate
When extracting, left handset and right handset are used as stereosonic campaign-styled I tech clip S；Bottom machine is independent as interface
Patchcord, data wire or charging wire.
5. multifunctional combination earphone as claimed in claim 2, it is characterised in that left daughter board, right daughter board, bottom plate are mutually pulled out
Go out, now left handset is used as monaural bluetooth earphone, right handset is used as simple earplug, then conduct turns bottom plate
Wiring, data wire or charging wire.
6. the multifunctional combination earphone as described in claim 1-5 any claim, it is characterised in that bottom machine, left handset
Or right handset is additionally provided with other supplemental functionalities, expanded function is realized in independent use.
7. the multifunctional combination earphone as described in claim 6 any claim, it is characterised in that other miscellaneous function moulds
Block include memory, read-write cell, audio codec, bluetooth unit, microprocessor, battery, input/output device, it is wired/
Wireless transceiver, GPS devices, touch feedback device, display, sensor, driver, actuator, TRT, photovoltaic electric
Pond, speedometer, electronic compass, magnetometer, gyroscope, thermometer, hygrometer, barometer, sphygmomanometer, sweat juice sensor, pulse
Meter, blood-glucose meter, vibrator, photometer, antenna, interface detection/converter, loudspeaker, earplug, microphone, camera, tracking are slided
One or more in wheel/sliding ball, touch sensor, pressure gauge, LED.
8. the multifunctional combination earphone as described in claim 1-5 any claim, it is characterised in that right daughter board or bottom plate
On be additionally provided with microphone/button.
9. multifunctional combination earphone as claimed in claim 1 or 2, it is characterised in that when three daughter boards are connected with each other, left handset
For conventional stereo sound wired earphone.
10. multifunctional combination earphone as claimed in claim 1 or 2, it is characterised in that the multifunctional combination earphone also includes：
The line traffic control plate of line traffic control function is realized, or directly line traffic control work(is realized using any one daughter board in bottom machine, left handset, right handset
Energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621032085.2U CN206042296U (en) | 2016-08-31 | 2016-08-31 | Many function combination earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621032085.2U CN206042296U (en) | 2016-08-31 | 2016-08-31 | Many function combination earphone |
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| Publication Number | Publication Date |
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| CN206042296U true CN206042296U (en) | 2017-03-22 |
Family
ID=58298750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201621032085.2U Active CN206042296U (en) | 2016-08-31 | 2016-08-31 | Many function combination earphone |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107371078A (en) * | 2017-06-28 | 2017-11-21 | 维沃移动通信有限公司 | A kind of mobile terminal and earphone |
| CN108184183A (en) * | 2017-12-28 | 2018-06-19 | 广州酷狗计算机科技有限公司 | Bluetooth headset |
| CN110099320A (en) * | 2018-01-31 | 2019-08-06 | 华为技术有限公司 | Wireless headset, tone frequency channel wire and earphone |
| CN114173243A (en) * | 2020-09-10 | 2022-03-11 | 宝德科技股份有限公司 | Earphone device, headphone device, and audio playback device |
| CN114173243B (en) * | 2020-09-10 | 2024-06-21 | 宝德科技股份有限公司 | Headset device, headphone device, and audio playback device |
-
2016
- 2016-08-31 CN CN201621032085.2U patent/CN206042296U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107371078A (en) * | 2017-06-28 | 2017-11-21 | 维沃移动通信有限公司 | A kind of mobile terminal and earphone |
| CN107371078B (en) * | 2017-06-28 | 2019-10-15 | 维沃移动通信有限公司 | A kind of mobile terminal and earphone |
| CN108184183A (en) * | 2017-12-28 | 2018-06-19 | 广州酷狗计算机科技有限公司 | Bluetooth headset |
| CN110099320A (en) * | 2018-01-31 | 2019-08-06 | 华为技术有限公司 | Wireless headset, tone frequency channel wire and earphone |
| CN114173243A (en) * | 2020-09-10 | 2022-03-11 | 宝德科技股份有限公司 | Earphone device, headphone device, and audio playback device |
| CN114173243B (en) * | 2020-09-10 | 2024-06-21 | 宝德科技股份有限公司 | Headset device, headphone device, and audio playback device |
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