CN207603704U - Handset audio accessory - Google Patents
Handset audio accessory Download PDFInfo
- Publication number
- CN207603704U CN207603704U CN201721666381.2U CN201721666381U CN207603704U CN 207603704 U CN207603704 U CN 207603704U CN 201721666381 U CN201721666381 U CN 201721666381U CN 207603704 U CN207603704 U CN 207603704U
- Authority
- CN
- China
- Prior art keywords
- audio
- handset
- mobile phone
- interfaces
- coder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
This application discloses a kind of handset audio accessory, including microphone input unit, circuit input unit, coder；It further includes：LAM modules and Lightning interfaces or USB audio controller and Type C interface.The problem of handset audio accessory of the utility model can cause the application scenarios of mobile phone limited to avoid the Lightning interfaces on mobile phone in the prior art or Type C interface limited amount.
Description
Technical field
This application involves mobile phone ancillary equipment field more particularly to a kind of handset audio accessories.
Background technology
At present, the earphone microphone interface of part mobile phone takes and data transmission interface Lightning interfaces or Type-C interfaces
Shared technology, but since this kind of mobile phone usually only sets a Lightning interface or Type-C interfaces, when the interface carries
Some equipment (such as microphone, charging equipment) then can not be further connect with other equipment between realization and remaining equipment
Data and signal transmission so that the equipment that mobile phone is had access to is further reduced, and results in mobile phone in more complicated applied field
Service efficiency in scape is had a greatly reduced quality.
Invention content
The application's is designed to provide a kind of handset audio accessory, for solving on mobile phone in the prior art
Lightning interfaces or Type-C interface quantities it is limited and the problem of the application scenarios of mobile phone is caused to be limited.
Handset audio accessory, including microphone input unit, circuit input unit, coder, the microphone input
Unit and the circuit input unit are electrically connected with the input terminal of the coder；It further includes：
LAM modules and Lightning interfaces, the coder, LAM modules and Lightning interfaces are sequentially electrically connected,
The microphone input unit and circuit input unit input audio signal by the coder, LAM modules and
Lightning interfaces send the connecting with external mobile phone being connect with the Lightning interfaces to；
Alternatively, USB audio controller and Type-C interfaces, the coder, USB audio controller and Type-C interfaces
It is sequentially electrically connected, the audio signal of the microphone input unit and the input of circuit input unit passes through the coder, USB
Audio Controller and Type-C interfaces send the connecting with external mobile phone being connect with the Type-C interfaces to.
Further, the handset audio accessory further includes at least one, the institute of earphone output unit, circuit output unit
State earphone output unit, circuit output unit is electrically connected with the output terminal of the coder.
Further, the handset audio accessory further includes audio effect processing chip, the audio effect processing chip and the volume
Decoder is electrically connected, and the audio signal for being inputted to the microphone input unit carries out audio effect processing.
Further, the handset audio accessory further includes audio selection key.
Further, the handset audio accessory further includes the line control push-button for controlling mobile phone, the line control push-button packet
Include talkthrough/hang-up button, music play/pause button, upper head/next button, volume of music regulating key one
Kind is a variety of.
Further, the handset audio accessory further includes power supply/charge interface, for external power supply with to the mobile phone
Audio accessories provide operating voltage and/or charge to the connecting with external mobile phone.
Further, when the handset audio accessory is connect with connecting with external mobile phone, the connecting with external mobile phone can be to the mobile phone
Audio accessories provide operating voltage.
Further, the handset audio accessory further includes storage unit and broadcast unit, the broadcast unit electrical connection
Between the storage unit and the coder；
The audio signal that the broadcast unit plays is transmitted by the coder, LAM modules and Lightning interfaces
Give the connecting with external mobile phone of the Lightning interfaces connection；Or the audio signal that the broadcast unit plays passes through the volume
Decoder, USB audio controller and Type-C interfaces send the connecting with external mobile phone being connect with the Type-C interfaces to.
Further, the handset audio accessory further includes broadcasting control button, for controlling the broadcast unit.
It can be seen from the above technical proposal that the handset audio accessory of the utility model has microphone input unit and line
Road input unit, microphone input unit and circuit input unit can simultaneously by Lightning interfaces or Type-C interfaces with
Connecting with external mobile phone carries out the transmission of audio signal, increases the quantity of the audio frequency apparatus of connecting with external mobile phone access.Further, mobile phone sound
Frequency accessory also have earphone output unit, circuit input unit it is at least one, further increase connecting with external mobile phone access sound
The quantity of frequency equipment is, it can be achieved that more application scenarios.Further, the handset audio accessory of the utility model can also be realized
It is the plurality of application scenes such as handset audio accessory power supply from handset audio accessory to connecting with external mobile phone charging or by connecting with external mobile phone,
It is limited and lead to the application scenarios of mobile phone to solve Lightning interfaces or Type-C interface quantities on mobile phone in the prior art
The problem of limited.
Description of the drawings
Fig. 1 is the structure diagram of the handset audio accessory of an embodiment；
Fig. 2 is the structure diagram of the handset audio accessory of another embodiment；
Fig. 3 is the structure diagram of the handset audio accessory of another embodiment；
Fig. 4 is the surface structure schematic diagram of the handset audio accessory of an embodiment；
Fig. 5 is the structure diagram of the handset audio accessory of another embodiment；
Fig. 6 is the structure diagram of the handset audio accessory of another embodiment；
Fig. 7 is the functional block diagram of the handset audio accessory of a specific embodiment.
Specific embodiment
The utility model is described in further detail below by specific embodiment combination attached drawing.In the utility model
Description in, it should be noted that unless otherwise clearly defined and limited, term " connection " can be directly connected, and also may be used
To be indirectly connected by intermediary, for the ordinary skill in the art, can understand as the case may be above-mentioned
Concrete meaning of the term in the utility model.
Fig. 1 is please referred to, in one embodiment, handset audio accessory includes microphone input unit 10, circuit input unit
11st, coder 12, LAM modules 13 and Lightning interfaces 14.Herein described handset audio accessory can be mobile telephone external
The audio accessories such as sound card, mobile phone K songs microphone, mobile phone headset.
Wherein, microphone input unit 10 and circuit input unit 11 are electrically connected with the input terminal of coder 12, are used for
To 12 input audio signal of coder, wherein, microphone input unit 10 is for signal of the input from microphone or acquisition
Human voice signal can be that the microphone of miaow core, microphone interface, microphone wireless receiving module or earphone microphone interface is defeated
Enter end；Circuit input unit including wired input interface or wirelessly connects for inputting the audio signal from external sound source equipment
Module is received, external sound source equipment includes the audio frequency apparatuses such as mobile phone, tablet computer, MP3, sound card.Specifically, microphone input unit
10 and circuit input unit 11 can be electrically connected by operational amplifier with the input terminal of coder 12, operational amplifier is by Mike
Coder 12 is inputted after the audio signal mixing processing that wind input unit 10 and circuit input unit 11 input；It can also be wheat
Gram wind input unit 10 and 11 two lines road of circuit input unit are electric with the input terminal of coder 12 after being directly merged into all the way
Connection.Coder 12 can select WM series coder, NAU88L25 coders etc., for microphone input unit
10 and circuit input unit 11 input audio signal carry out coded treatment.
Coder 12, LAM modules 13 and Lightning interfaces 14 are sequentially electrically connected.Lightning interfaces 14 be used for
The data transmission interface connection of mobile phone, LAM modules 13 realize the communication with connecting with external mobile phone.Microphone input unit 10 and circuit are defeated
The audio signal for entering the input of unit 11 passes sequentially through coder 12, LAM modules and Lightning interfaces 14 and is sent to outer catcher
Machine.
In the present embodiment, by taking the audiogenic device of line attachment input unit 11 is mobile phone as an example, Lightning interfaces 14
The mobile phone recorded as K songs is can access, such as the mobile phone of recording software is installed, circuit input unit 11, which can access, provides music
The mobile phone of accompaniment, microphone input unit 10 input voice audio signal, then the utility model handset audio accessory can be realized and be connect
Enter multiple audio frequency apparatuses, realize the function that accompaniment is sung.The mobile phone that Lightning interfaces 14 connect can access multiple audios simultaneously
Equipment carries out the transmission of audio signal, realizes more rich application scenarios.
It should be noted that in embodiment shown in FIG. 1, not specifically defined microphone input unit 10 and circuit are defeated
The quantity for entering unit 11 is one, is intended merely to clearer example, and is not drawn into remaining and may be disposed on handset audio accessory
Microphone input unit 10 and circuit input unit 11, remaining attached drawing of the utility model also similarly, no longer go to live in the household of one's in-laws on getting married one by one herein
It states.
In another embodiment, above-mentioned LAM modules 13 and Lightning interfaces 14 can be substituted for usb audio
Controller 13 and Type-C interfaces 14.Wherein, USB audio controller 13 can select XMOS, SN111220 audio control chip,
Realize the voice communication with connecting with external mobile phone.Type-C interfaces 14 are used to connect with the data transmission interface of mobile phone.The reality below
It applies example can be extended on the basis of any one in above two embodiment, when using Lightning interfaces, then
Using LAM modules, when using Type-C interfaces, then using USB audio controller.
Referring to Fig. 2, in another embodiment, handset audio accessory is additionally provided with earphone output unit 15, circuit output
At least one of unit 16, wherein, the output terminal electricity of earphone output unit 15 and circuit output unit 16 and coder 12
Connection.
In a kind of embodiment, the audio signal of connecting with external mobile phone is output to by Lightning interfaces/Type-C interfaces 14
Handset audio accessory exports after 12 decoding process of coder through earphone output unit 15 and/or circuit output unit 16.
In another embodiment, it is also single with microphone input unit 10, circuit input that coder 12 decodes obtained audio signal
The audio signal of 11 input of member carries out stereo process, then export by earphone output unit 15 and/or circuit output unit 16, real
The audio signal now inputted to microphone input unit 10 and circuit input unit 11 is monitored.Above-mentioned stereo process can be by
Coder 12 carries out.Earphone output unit 15 can be that earphone output connects for exports audio signal to earphone, earplug etc.
The ear-piece output of mouth, earphone wireless transmission unit or earphone microphone interface；Circuit output unit 16 is for exports audio signal to outer
Portion's audio frequency apparatus can be wired output interface or wireless sending module, and outer audio equipment is put including ear, sound pick-up outfit, sound
Card etc..
It should be noted that the present embodiment does not limit the quantity of earphone output unit 15, circuit output unit 16.At it
In his embodiment, microphone input unit 10 and earphone output unit 15 can be the earphone microphone interface of integral type, wherein Mike
Wind input unit 10 is the microphone input termi-nal of earphone microphone interface, and earphone output unit 15 is exported for the left and right acoustic channels of earphone microphone interface
End.
The present embodiment handset audio accessory, which removes, can access the audio frequency apparatuses such as microphone, MP3, sound card, can also access earphone,
The audio frequency apparatuses such as ear is put, sound pick-up outfit, have further expanded the application scenarios of mobile phone.
Referring to Fig. 3, in another embodiment, handset audio accessory further includes audio effect processing chip 17, audio effect processing core
Piece 17 is electrically connected with coder 12, and the audio signal for being inputted to microphone input unit 10 carries out the change of voice, electric sound, mixes
The audio effect processings such as ring, dodge.Audio effect processing chip 17 can select the dsp processors such as CCM4021, CCM502.
In the present embodiment, handset audio accessory can also set audio selection key (not shown), audio selection
Button is used to select the audio effect processing pattern of audio effect processing chip 17, for example, can set electric sound, the change of voice, reverberation, dodge etc. at least
A kind of audio selection key.Audio selection key can be connect by microcontroller with audio effect processing chip 17, be realized to audio effect processing
The control of chip.The audio effect processing pattern that audio effect processing chip 17 is controlled by audio selection key is this field routine techniques hand
Section.
Referring to Fig. 4, in another embodiment, handset audio accessory further includes microphone volume and adjusts control 21, Mike
Wind volume adjustment control 21 is used to adjust the amplitude of the audio signal of the input of microphone input unit 10, and series connection may be used and slide
The amplitude of audio signal is adjusted in rheostatic mode.Microphone volume adjusts control 21 and knob, button, disk may be used
Middle Eocene device etc..
With continued reference to Fig. 4, in another embodiment, handset audio accessory further includes the line control push-button for controlling mobile phone,
In the present embodiment, line control push-button suspends including talkthrough/call hang-ups/music/music/upper head/next button
22nd, volume of music increases button 23 and volume of music and subtracts button 24, button 22, button 23 and button 24 respectively with LAM modules/USB
Audio Controller 13 is electrically connected.Button 22 can realize talkthrough, call hang-ups, sound respectively under different mode and control mode
It is happy play, music pause, a upper head, next manipulation, such as under the pattern for having telephone call connecting with external mobile phone, click by
Key 22 is then connected, and long-press button 22 is then hung up, and is connect under the pattern of mobile phone to play music outside, is clicked button 22 and is then played, then
It clicks, suspends, quickly double-click, play next, under quickly pressing three, then it is first to play upper one.Button 23 and button 24 are used
In the amplitude for the audio signal for adjusting connecting with external mobile phone output, volume increasing and volume down are corresponded to respectively.Referring to Fig. 5, handset audio
Accessory further includes a control module 18 being electrically connected respectively with coder 12, LAM modules/USB audio controller 13, controls mould
Block 18 is used to parse the function of pulse control signal instruction, configuration coder 12 and LAM modules/USB audio controller 13, control
Molding block 18 reads the corresponding pulse control signal of button pressed, and parses pulse control signal and instructs and pass through LAM moulds
Group/USB audio controller 13 notifies connecting with external mobile phone to carry out corresponding operation to realize the manipulation to connecting with external mobile phone.Control module 18
The microcontrollers such as STM series, N76e003QFN20 can be selected.
It should be noted that the application does not limit the quantity of line control push-button and specific control function, quantity can be one
Or it is multiple, control function can be include talkthrough/hang-up button, music play/pause button, it is upper one first/next by
Key, volume of music regulating key it is one or more.
With continued reference to Fig. 4, in another embodiment, handset audio accessory further includes power supply/charge interface 19, powers/fills
Electrical interface 19 is used for external power supply to provide operating voltage to handset audio accessory and/or charge to connecting with external mobile phone.Specifically, it supplies
Electricity/charging interface 19 provides operating voltage to handset audio accessory and is mainly controlled with coder 12, LAM modules/usb audio
The connections such as device 13, audio effect processing chip 17, control module 18 provide operating voltage.When for lightning interfaces, power/fill
Electrical interface 19 charges to connecting with external mobile phone, is to realize to mobile phone to charge by LAM modules 13 and Lightning interfaces 14, the charging
Technology is this field conventional technical means, therefore is repeated no more.When for Type-C interfaces, handset audio accessory further includes USB
PD (USB power delivery) chip (being omitted in attached drawing), power supply/charge interface 19 charge to connecting with external mobile phone, are to pass through
USB PD chips and Type-C interfaces 14 are realized to charge to mobile phone, which is this field conventional technical means, therefore not
It repeats again.The present embodiment handset audio accessory can be realized to be carried out at the same time and charge to connecting with external mobile phone and believe with connecting with external mobile phone transmission audio
Number application scenarios.
In another embodiment, the operating voltage of handset audio accessory can also be by connecing with Lightning interfaces/Type-C
The connecting with external mobile phone of 14 connection of mouth provide.When Lightning interfaces 14 are connect with mobile phone, LAM modules 13 can allow for mobile phone pair
LAM modules 13, coder 12, audio effect processing chip 17, control module 18 etc. charge to provide work for effectively work
Voltage.Mobile phone is allowed to be that the equipment being connect with Lightning interfaces 14 is powered and belongs to this field routine skill by LAM modules
Art means, details are not described herein.When Type-C interfaces 14 are connect with mobile phone, then realize mobile phone to mobile phone by USB PD chips
Audio accessories charge to provide operating voltage for effectively work, which belongs to this field conventional technical means, herein not
It repeats again.
Referring to Fig. 6, in another embodiment, handset audio accessory further includes storage unit 30 and broadcast unit 31, broadcasts
It puts unit 31 to be electrically connected between storage unit 30 and coder 12, broadcast unit plays the audio text that storage unit 31 stores
Part, and the audio signal that broadcasting is obtained is connect by coder 12, LAM modules/USB audio controller 13 and Lightning
Mouth/Type-C interfaces 14 send the connecting with external mobile phone being connect with Lightning interfaces/Type-C interfaces 14 to.Specifically, it plays single
The output terminal of member 31 can also pass through operational amplifier and coding and decoding together with microphone input unit 10, circuit input unit 11
The input terminal electrical connection of device 12 is encoded by operational amplifier audio mixing is latter with being input to coder 12.Storage unit 30
Flash memory, SD card memory etc. may be used, can store music file, auxiliary audio material file, such as applause,
The audio material file of laugh, cheer.Broadcast unit 31 may be used AST8400, AST8403 etc. and play chip, this practicality
The concrete model of novel unlimited broadcast unit 31 processed.
In the present embodiment, handset audio accessory, which can also be set, plays control button (not shown), for controlling
Broadcast unit 31.Play control button can include broadcasting/pause, it is upper one head/next, quick audio button at least one
Kind, such as the control of laugh press key shortcut can be set to play laugh auxiliary audio.Playing control button can be by microcontroller with playing
Unit 31 connects, and realizes the control to broadcast unit 31.It is this field routine by playing control button to control broadcast unit 31
Technological means.
Referring to Fig. 7, in an application scenarios, principle frame of the handset audio accessory in specific application process is shown
Figure.
In the handset audio accessory, there is provided a microphone interface, a circuit input interface, an earphone interfaces
With a circuit output interface, while there is provided memory and play chip, microphone interface, circuit input interface and play core
The output terminal of piece is connected by the input terminal of an operational amplifier and coder.
It is also provided with adjusting the audio signal of microphone interface input between microphone interface and operational amplifier
The microphone volume of amplitude adjust control, while be equipped between microphone interface and microphone volume adjust control with to prevent
Only the first amplifying unit of audio signal distortion.
Microphone interface, circuit input interface and the input of broadcasting chip or the audio signal played are mixed by operational amplifier
Coder, LAM modules/USB audio controller and Lightning interfaces/Type-C interfaces is passed sequentially through after sound to be output to outside
Catcher machine.The audio signal of connecting with external mobile phone passes through Lightning interfaces/Type-C interfaces and LAM modules/USB audio controller
Be input to coder and microphone interface, circuit input interface and play chip audio signal mix after from earphone interface and
Circuit output interface exports.
The above content is combine specific embodiment further description made for the present invention, it is impossible to assert this hair
Bright specific implementation is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, it is not taking off
Under the premise of from present inventive concept, several simple deduction or replace can also be made.
Claims (10)
1. handset audio accessory, which is characterized in that including microphone input unit, circuit input unit, coder, the wheat
Gram wind input unit and the circuit input unit are electrically connected with the input terminal of the coder；It further includes：
LAM modules and Lightning interfaces, the coder, LAM modules and Lightning interfaces are sequentially electrically connected, described
Microphone input unit and the audio signal of circuit input unit input pass through the coder, LAM modules and Lightning
Interface sends the connecting with external mobile phone being connect with the Lightning interfaces to；
Alternatively, USB audio controller and Type-C interfaces, the coder, USB audio controller and Type-C interfaces are sequentially
The audio signal of electrical connection, the microphone input unit and the input of circuit input unit passes through the coder, usb audio
Controller and Type-C interfaces send the connecting with external mobile phone being connect with the Type-C interfaces to.
2. handset audio accessory according to claim 1, which is characterized in that it is defeated that the handset audio accessory further includes earphone
Go out unit, circuit output unit it is at least one, the earphone output unit, circuit output unit are defeated with the coder
Outlet is electrically connected.
3. handset audio accessory according to claim 1, which is characterized in that the handset audio accessory is further included at audio
Chip is managed, the audio effect processing chip is electrically connected with the coder, for the sound inputted to the microphone input unit
Frequency signal carries out audio effect processing.
4. handset audio accessory according to claim 3, which is characterized in that the handset audio accessory further includes audio choosing
Select button.
5. handset audio accessory according to claim 1, which is characterized in that the handset audio accessory further includes microphone
Volume adjustment control.
6. handset audio accessory according to claim 2, which is characterized in that the handset audio accessory further includes to control
The line control push-button of mobile phone processed, the line control push-button include talkthrough/hang-up button, music play/pause button, it is upper one head/
Next button, volume of music regulating key it is one or more.
7. according to claim 1-6 any one of them handset audio accessories, which is characterized in that the handset audio accessory also wraps
Include power supply/charge interface, for external power supply with to the handset audio accessory provide operating voltage and/or, to described
The connecting with external mobile phone of Lightning interfaces connection or the connecting with external mobile phone connected to the Type-C interfaces charge.
8. according to claim 1-6 any one of them handset audio accessories, which is characterized in that the handset audio accessory with it is outer
When catcher machine connects, the connecting with external mobile phone can provide operating voltage to the handset audio accessory.
9. according to claim 1-6 any one of them handset audio accessories, which is characterized in that the handset audio accessory also wraps
Storage unit and broadcast unit are included, the broadcast unit is electrically connected between the storage unit and the coder；
The audio signal that the broadcast unit plays by the coder, LAM modules and Lightning interfaces send to
The connecting with external mobile phone of the Lightning interfaces connection；Or the audio signal that the broadcast unit plays passes through the coding and decoding
Device, USB audio controller and Type-C interfaces send the connecting with external mobile phone being connect with the Type-C interfaces to.
10. handset audio accessory according to claim 9, which is characterized in that the handset audio accessory further includes broadcasting
Control button, for controlling the broadcast unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721666381.2U CN207603704U (en) | 2017-12-05 | 2017-12-05 | Handset audio accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721666381.2U CN207603704U (en) | 2017-12-05 | 2017-12-05 | Handset audio accessory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207603704U true CN207603704U (en) | 2018-07-10 |
Family
ID=62763085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721666381.2U Expired - Fee Related CN207603704U (en) | 2017-12-05 | 2017-12-05 | Handset audio accessory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207603704U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110730403A (en) * | 2019-11-20 | 2020-01-24 | 深圳巴金科技有限公司 | Karaoke earphone and using method |
-
2017
- 2017-12-05 CN CN201721666381.2U patent/CN207603704U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110730403A (en) * | 2019-11-20 | 2020-01-24 | 深圳巴金科技有限公司 | Karaoke earphone and using method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107295434A (en) | TWS earphones and realize the vocal music of TWS earphones with the computer-readable recording medium broadcast | |
| CN207022164U (en) | TWS earphones | |
| US20080298613A1 (en) | Wireless headset with mic-side driver cut-off | |
| CN110278508A (en) | A kind of audiogenic device and its control method, earphone | |
| CN105979421A (en) | Bluetooth headset based on simultaneous interpretation and simultaneous interpretation system using the same | |
| CN108513224A (en) | Wireless microphone based on Bluetooth BLE transmission | |
| WO2015180692A1 (en) | Method, apparatus and system for supplying power to active noise cancelling earphone | |
| US20100190438A1 (en) | Universal mutilmedia bluetooth car handsfree device | |
| CN207603704U (en) | Handset audio accessory | |
| CN205142478U (en) | Multi -functional power amplifier system | |
| CN109637512A (en) | A kind of tuning system and tuning method | |
| CN106340288A (en) | Multifunctional mini portable karaoke device | |
| CN109461429A (en) | A kind of AI K song microphone speaker integrated equipment | |
| CN201479213U (en) | Mobile phone with accompaniment function | |
| CN205726359U (en) | Wireless FM car microphone system | |
| CN103794200A (en) | Portable karaoke device capable of achieving audio access based on WIFI | |
| CN204669579U (en) | Bluetooth noise-reducing earphone | |
| CN217643731U (en) | Dual-mode wireless sound production device or wireless earphone or wireless sound box intelligent switching system | |
| CN206713051U (en) | A kind of external sound card | |
| CN207369278U (en) | Mobile intelligent terminal with inside recording function | |
| CN207968874U (en) | A kind of microphone speaker all-in-one machine | |
| JP2001265360A (en) | Portable digital media reproducing device | |
| CN208707868U (en) | A kind of microphone and microphone system | |
| CN210963878U (en) | Sound adapting device for handheld game equipment and handheld game equipment | |
| CN210351549U (en) | Earphone signal communication circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180710 Termination date: 20211205 |