CN207367592U - The midi signal conversion equipment of electronic keyboard - Google Patents
The midi signal conversion equipment of electronic keyboard Download PDFInfo
- Publication number
- CN207367592U CN207367592U CN201721481147.2U CN201721481147U CN207367592U CN 207367592 U CN207367592 U CN 207367592U CN 201721481147 U CN201721481147 U CN 201721481147U CN 207367592 U CN207367592 U CN 207367592U
- Authority
- CN
- China
- Prior art keywords
- audio
- midi
- unit
- electronic keyboard
- signal
- 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
The utility model discloses a kind of midi signal conversion equipment of electronic keyboard, including：Electronic keyboard, terminal device, the midi signal of electronic keyboard is converted into General MIDI signal and is exported to the MIDI interconnecting modules of terminal device, MIDI interconnecting modules, dio Output Modules are carried out with the key control module by key control, the dio Output Modules that electronic keyboard audio signal and terminal device audio signal mixing are exported, to the charging module of each module for power supply.The utility model is integrated with multiple interfaces, simplify the connection mode of electronic keyboard and mobile terminal, the special midi signal of the electronic keyboards such as electronic organ, fender can be converted into the identifiable signals of APP, sent jointly after can the electronic keyboard audio of input be mixed with the audio signal of terminal device, practitioner is set preferably to experience sound, the circuit of the utility model is simple, and product is easy to use, and function integrates.
Description
Technical field
Audio Signal Processing technical field is the utility model is related to, is turned more particularly to a kind of midi signal of electronic keyboard
Changing device.
Background technology
MIDI (Musical Instrument Digital Interface musical instrument digital interfaces), is the 1980s
Just proposed to solve the communication issue between electrophonic musical instrument, MIDI is the widest music standards form of music circle, can be claimed
For " music score that computer capacity understands ", it records music with the digital controlled signal of note, and a first complete MIDI music is only
Have that tens KB are big, and tens of music tracks can be included, almost all of contemporary music is all to be made with MIDI plus bank
Make what is synthesized.MIDI transmission is the instruction such as note, control parameter, it indicates the various functions of MIDI equipment.
In the prior art, the musical instrument of electronic keyboard class such as most of electronic organ and fender and existing mobile terminal APP are mutual
Connection lacks convenience and harmony when using, such as：Connection mode only supports that the sound of wired connection, APP and piano can not be same
Step, the signal of electronic keyboard and APP can not intercommunications etc..
Therefore, the prior art needs to improve.
Utility model content
The utility model embodiment technical problem to be solved is：A kind of midi signal of electronic keyboard is provided to turn
Changing device, to solve problems of the prior art.
According to the one side of the utility model embodiment, there is provided a kind of electronic keyboard midi signal conversion equipment,
Including：
MIDI interconnecting modules, key control module, dio Output Modules, charging module, electronic keyboard, terminal device；
The MIDI interconnecting modules are connected with the electronic keyboard, terminal device, charging module, key control module, institute
The midi signal that MIDI interconnecting modules are used to receive electronic keyboard transmission is stated, and midi signal is converted into suitable terminal device and is known
It is transported on terminal device after other midi signal, and is powered by the charging module, it is described to state MIDI interconnecting modules
The function of the key control module is controlled to realize；
The charging module is charged by external charging power supply to rechargeable battery, and from rechargeable battery to the audio output
Module, key control module and the power supply of MIDI conversion circuits；
The key control module is connected with MIDI interconnecting modules, dio Output Modules and the charging module, described to press
Key control module realizes keypress function by MIDI interconnecting modules, and is opened by the power supply of dio Output Modules as described in key control
Pass, bluetooth communication switch, audio playback switch, broadcast sound volume plus-minus, and powered from charging module to the key control module；
The dio Output Modules are connected with the electronic keyboard, terminal device, key control module and charging module, institute
The audio signal of dio Output Modules receiving terminal apparatus output is stated, and with being broadcast after the audio signal mixing of electronic keyboard output
Go out, control power switch, bluetooth communication switch, audio playback switch, broadcast sound volume to add and subtract by key control module, and by institute
State charging module for power supply.
In another embodiment of midi signal conversion equipment based on above-mentioned electronic keyboard, the MIDI interconnecting modules bag
Include USB input, USB output terminals, bluetooth output module, signal processing unit；
The USB input is connected with the electronic keyboard, the midi signal sent for receiving the electronic keyboard, and
After the signal processing unit processes, exported by the USB output terminals, bluetooth output module to terminal device.
In another embodiment of midi signal conversion equipment based on above-mentioned electronic keyboard, the key control module bag
Include power button unit, Bluetooth key unit, Audio control unit, volume control unit, indicator unit；
The power button unit is used for the on/off for controlling the MIDI modular converters, and the Bluetooth key unit is used
In controlling the bluetooth communication of the MIDI modular converters, dio Output Modules to be turned on and off, the Audio control unit uses
In controlling the audio of the dio Output Modules to play, the volume control unit is used for the sound for controlling the dio Output Modules
The tune of volume when frequency plays, the indicator unit are used for the working status for showing the MIDI modular converters.
In another embodiment of midi signal conversion equipment based on above-mentioned electronic keyboard, the dio Output Modules bag
Include bluetooth communication unit, 3.5 audio input ports, mixer unit, audio decoding unit, power amplifier unit, audio output port；
The bluetooth communication unit is used to connect terminal device by bluetooth communication, the audio letter that receiving terminal apparatus is sent
Number；
3.5 audio input port is used to connect electronic keyboard, receives the audio signal that electronic keyboard is sent；
The mixer unit is connected with the bluetooth communication unit, 3.5 audio input ports, audio decoding unit, is used
In by the terminal device audio signal and electronic keyboard audio signal mixing of reception, and the audio signal after audio mixing is sent to sound
Frequency decoding unit；
The audio decoding unit is connected with the mixer unit, power amplifier unit, and the audio decoding unit is to described
The audio signal of mixer unit output is decoded, and is allowed to be converted to the audio format for being adapted to broadcasting, and by decoded sound
Frequency signal is sent to power amplifier unit, carries out the power amplification of audio signal；
The power amplifier unit is connected with the audio decoding unit and audio output port, and the power amplifier unit receives audio
The audio signal that decoding unit is sent, by output after audio signal power amplification to audio output port；
The audio output port is used to connect external audio playback equipment.
In another embodiment of midi signal conversion equipment based on above-mentioned electronic keyboard, the charging module includes：
Direct-flow input end mouth, charging control unit, lithium battery group；
The input power of the direct-flow input end mouth connection+5V, and be connected with charging control unit, the charge control list
Member is used for the charging for controlling the lithium battery group.
In another embodiment of midi signal conversion equipment based on above-mentioned electronic keyboard, the signal processing unit bag
Include AC6905A chips.
In another embodiment of midi signal conversion equipment based on above-mentioned electronic keyboard, the power amplifier unit includes
LPA4809 chips.
In another embodiment of midi signal conversion equipment based on above-mentioned electronic keyboard, the audio decoding unit bag
Include A9510 chips.
In another embodiment of midi signal conversion equipment based on above-mentioned electronic keyboard, the charging control unit bag
Include IC4054 chips.
In another embodiment of midi signal conversion equipment based on above-mentioned electronic keyboard, the terminal device includes：
Mobile phone, computer, tablet computer.
Compared with prior art, the utility model has the following advantages：
The midi signal conversion equipment of the electronic keyboard provided based on the utility model above-described embodiment, is integrated with a variety of connect
Mouthful, the connection mode of electronic keyboard and mobile terminal is simplified, can be by all types of MIDI of the electronic keyboards such as electronic organ, fender
Signal is converted into the General MIDI signal that APP can embody, can be by the electronic keyboard audio of input and the audio signal of terminal device
Sent jointly after mixing, practitioner is preferably experienced sound, the circuit of the utility model is simple, and product is easy to use, function
It is integrated.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Brief description of the drawings
The attached drawing of a part for constitution instruction describes the embodiment of the utility model, and is used for together with description
Explain the principle of the utility model.
Referring to the drawings, according to following detailed description, the utility model can be more clearly understood, wherein：
Fig. 1 is the structure diagram of one embodiment of the midi signal conversion equipment of the utility model electronic keyboard.
Fig. 2 is the structure diagram of another embodiment of the midi signal conversion equipment of the utility model electronic keyboard.
Fig. 3 is the structure diagram of another embodiment of the midi signal conversion equipment of the utility model electronic keyboard.
Fig. 4 is the structure diagram of another embodiment of the midi signal conversion equipment of the utility model electronic keyboard.
Fig. 5 is the structure diagram of another embodiment of the midi signal conversion equipment of the utility model electronic keyboard.
In figure：1MIDI interconnecting modules, 11USB input terminals, 12USB output terminals, 13 bluetooth output modules, 14 signal processings
Unit, 2 key control modules, 21 power button units, 22 Bluetooth key units, 23 Audio control units, 24 volume control lists
Member, 25 indicator units, 3 dio Output Modules, 31 bluetooth communication units, 32 3.5 audio input ports, 33 mixer units,
34 audio decoding units, 35 power amplifier units, 36 audio output ports, 4 charging modules, 41 direct-flow input end mouths, 42 charge controls
Unit, 43 lithium battery groups, 5 electronic keyboards, 6 terminal devices.
Embodiment
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should be noted that：It is unless another
Illustrate outside, the component and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
At the same time, it should be appreciated that for the ease of description, the size of the various pieces shown in attached drawing is not according to reality
Proportionate relationship draw.
The description only actually at least one exemplary embodiment is illustrative to be never used as to this practicality below
New and its application or any restrictions used.
It may be not discussed in detail for technology and equipment known to person of ordinary skill in the relevant, but in appropriate situation
Under, the technology and equipment should be considered as part for specification.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.
Fig. 1 is the structure diagram of one embodiment of the midi signal conversion equipment of the utility model electronic keyboard, such as
Shown in Fig. 1, the midi signal conversion equipment of the electronic keyboard of the embodiment includes：MIDI interconnecting modules 1, key control module 2,
Dio Output Modules 3, charging module 4, electronic keyboard 5, terminal device 6；
The MIDI interconnecting modules 1 connect with the electronic keyboard 5, terminal device 6, charging module 4, key control module 2
Connect, the MIDI interconnecting modules 1 are used for the midi signal for receiving the transmission of electronic keyboard 5, and midi signal is converted into being adapted to eventually
It is transported on terminal device 6 after the midi signal that end equipment 6 embodies, and is powered by the charging module 4, it is described to state
MIDI interconnecting modules 1 control the function of the key control module 2 to realize；
The charging module 4 is charged by external charging power supply to rechargeable battery, and defeated from rechargeable battery to the audio
Go out module 3, key control module 2 and MIDI conversion circuits 1 to power；
The key control module 2 is connected with the MIDI interconnecting modules 1, dio Output Modules 3 and charging module 4, institute
State key control module 2 and keypress function is realized by MIDI interconnecting modules 1, and pass through dio Output Modules 3 as described in key control
Power switch, bluetooth communication switch, audio playback switch, broadcast sound volume plus-minus, and press key control from charging module 4 to described
Module 2 is powered；
The dio Output Modules 3 connect with the electronic keyboard 5, terminal device 6, key control module 2 and charging module 4
Connect, the audio signal of 3 receiving terminal apparatus 6 of the dio Output Modules output, and the audio signal exported with electronic keyboard 5 is mixed
Broadcasted after sound, control power switch, bluetooth communication switch, audio playback switch, broadcast sound volume to add by key control module 2
Subtract, and powered by the charging module 4；
The electronic keyboard 5 is the electronic keyboard 5 carried on the musical instruments such as electronic organ, fender, hand scroll qin, MIDI keyboards,
The speech simulation signal of generation is converted to by electric signal by electronic keyboard 5；
The terminal device 6 is the electronic equipment can receive, play, sending audio file, can receive and identify number
Word audio signal.
Fig. 2 is the structure diagram of another embodiment of the midi signal conversion equipment of the utility model electronic keyboard,
As shown in Fig. 2, the MIDI interconnecting modules 1 include USB input 11, USB output terminals 12, bluetooth output module 13, at signal
Manage unit 14；
The USB input 11 is connected with the electronic keyboard 5, the MIDI letters sent for receiving the electronic keyboard 5
Number, and after the signal processing unit 14 processing, exported by the USB output terminals 12, bluetooth output module 13 to end
End equipment 6.
USB input 11 connects the MIDI data output terminal of electronic keyboard 5 by USB data line, and midi signal is by letter
After number processing unit 14 is handled, General MIDI signal that all kinds of specific midi signals are converted into using for APP identifications.
Fig. 3 is the structure diagram of another embodiment of the midi signal conversion equipment of the utility model electronic keyboard,
As shown in figure 3, the key control module 2 include power button unit 21, Bluetooth key unit 22, Audio control unit 23,
Volume control unit 24, indicator unit 25；
Each push-button unit of key control module 2 realizes its corresponding keypress function, button by MIDI modular converters 1
Each functional unit of control module 2 is connected with the control chip of the MIDI modular converters 1, the button letter of each functional unit
Number send to its respective control function after MIDI modular converters 1, is realized, the power button unit 21 is used to control the MIDI
The on/off of modular converter 1, the Bluetooth key unit 22 are used to control the MIDI modular converters 1, dio Output Modules 3
Bluetooth communication be turned on and off, the Audio control unit 23 is used to control the audio of the dio Output Modules 3 to play,
The tune of volume, the indicator light list when volume control unit 24 is used to control the audio of the dio Output Modules 3 to play
Member 25 is used for the working status for showing the MIDI modular converters 1.The indicator unit 25 includes multiple LED lights, when
When each functional unit of key control module 2 is pressed, corresponding LED light is bright, when there is audio broadcasting, LED light
Glittering with audio volume control, when not having audio signal, LED light automated periodic is glittering, and the glittering color of LED light can
With setting.
Fig. 4 is the structure diagram of another embodiment of the midi signal conversion equipment of the utility model electronic keyboard,
As shown in figure 4, the dio Output Modules 3 include bluetooth communication unit 31,3.5 audio input ports 32, mixer unit 33,
Audio decoding unit 34, power amplifier unit 35, audio output port 36；
The bluetooth communication unit 31 is used to connect terminal device 6, the sound that receiving terminal apparatus 6 is sent by bluetooth communication
Frequency signal；
3.5 audio input port 32 is used to connect electronic keyboard 5, receives the audio signal that electronic keyboard 5 is sent；
The mixer unit 33 and the bluetooth communication unit 31,3.5 audio input ports 32, audio decoding unit 34
Connection, for believing by 5 audio signal mixing of 6 audio signal of terminal device and electronic keyboard of reception, and by the audio after audio mixing
Number send to audio decoding unit 34；
The audio decoding unit 34 is connected with the mixer unit 33, power amplifier unit 35, the audio decoding unit
The audio signal that 34 pairs of mixer units 33 export decodes, and is allowed to be converted to the audio format for being adapted to broadcasting, and will
Decoded audio signal sends the power amplification that audio signal is carried out to power amplifier unit 35；
The power amplifier unit 35 is connected with the audio decoding unit 34 and audio output port 36, the power amplifier unit 35
The audio signal that audio decoding unit 34 is sent is received, by output after audio signal power amplification to audio output port 36；
The audio output port 36 is used to connect external audio playback equipment.
Fig. 5 is the structure diagram of another embodiment of the midi signal conversion equipment of the utility model electronic keyboard,
As shown in figure 5, the charging module 4 includes：Direct-flow input end mouth 41, charging control unit 42, lithium battery group 43；
The direct-flow input end mouth 41 connects the input power of+5V, and is connected with charging control unit 42, the charging control
Unit 42 processed is used for the charging for controlling the lithium battery group 43.
The signal processing unit 14 includes AC6905A chips, and AC6905A chips are realized for 14 function of signal processing unit
Main control chip.
The power amplifier unit 35 includes LPA4809 chips, and the LPA4809 chips are dual-channel audio power amplifier chips,.
The audio decoding unit 34 includes A9510 chips.
The charging control unit 42 includes IC4054 chips.
The terminal device 6 includes：Mobile phone, computer, tablet computer.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and its
The difference of its embodiment, the same or similar part cross-reference between each embodiment.
The description of the utility model provides for the sake of example and description, and is not exhaustively or by originally
Utility model is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.
Selection and description embodiment are to more preferably illustrate the principle and practical application of the utility model, and make the common skill of this area
Art personnel it will be appreciated that the utility model so as to designing various embodiments with various modifications suitable for special-purpose.
Claims (10)
- A kind of 1. midi signal conversion equipment of electronic keyboard, it is characterised in that including：MIDI interconnecting modules, by key control mould Block, dio Output Modules, charging module, electronic keyboard, terminal device；The MIDI interconnecting modules are connected with the electronic keyboard, terminal device, charging module, key control module, described MIDI interconnecting modules are used for the midi signal for receiving electronic keyboard transmission, and midi signal is converted into the suitable terminal device It is transported on terminal device after the midi signal of identification, and is powered by the charging module, the MIDI interconnecting modules The function of the key control module is controlled to realize；The charging module is charged by external charging power supply to rechargeable battery, and from rechargeable battery to the audio output mould Block, key control module and the power supply of MIDI conversion circuits；The key control module is connected with MIDI interconnecting modules, dio Output Modules and the charging module, described to press keying Molding block realizes keypress function by MIDI interconnecting modules, and by as described in key control the power switch of dio Output Modules, Bluetooth communication switch, audio playback switch, broadcast sound volume plus-minus, and powered from charging module to the key control module；The dio Output Modules are connected with the electronic keyboard, terminal device, key control module and charging module, the sound The audio signal of frequency output module receiving terminal apparatus output, and with being broadcasted after the audio signal mixing of electronic keyboard output, lead to Key control module control power switch, bluetooth communication switch, audio playback switch, broadcast sound volume plus-minus are crossed, and is filled by described Electric module for power supply.
- 2. the midi signal conversion equipment of electronic keyboard according to claim 1, it is characterised in that the MIDI switching models Block includes USB input, USB output terminals, bluetooth output module, signal processing unit；The USB input is connected with the electronic keyboard, the midi signal sent for receiving the electronic keyboard, and is passed through After the signal processing unit processes, exported by the USB output terminals, bluetooth output module to terminal device.
- 3. the midi signal conversion equipment of electronic keyboard according to claim 1, it is characterised in that described to press key control mould Block includes power button unit, Bluetooth key unit, Audio control unit, volume control unit, indicator unit；The power button unit is used for the on/off for controlling the MIDI modular converters, and the Bluetooth key unit is used to control Make the MIDI modular converters, the bluetooth communication of dio Output Modules is turned on and off, the Audio control unit is used to control The audio for making the dio Output Modules plays, and the volume control unit is used to control the audio of the dio Output Modules to broadcast The tune of volume when putting, the indicator unit are used for the working status for showing the MIDI modular converters.
- 4. the midi signal conversion equipment of electronic keyboard according to claim 1, it is characterised in that the audio output mould It is defeated that block includes bluetooth communication unit, 3.5 audio input ports, mixer unit, audio decoding unit, power amplifier unit, 3.5 audios Exit port；The bluetooth communication unit is used to connect terminal device, the audio signal that receiving terminal apparatus is sent by bluetooth communication；3.5 audio input port is used to connect electronic keyboard, receives the audio signal that electronic keyboard is sent；The mixer unit is connected with the bluetooth communication unit, 3.5 audio input ports, audio decoding unit, for inciting somebody to action The terminal device audio signal and electronic keyboard audio signal mixing of reception, and the audio signal after audio mixing is sent to audio solution Code unit；The audio decoding unit is connected with the mixer unit, power amplifier unit, and the audio decoding unit is to the audio mixing The audio signal of device unit output is decoded, and is allowed to be converted to the audio format for being adapted to broadcasting, and decoded audio is believed Number send to power amplifier unit, carry out the power amplification of audio signal；The power amplifier unit is connected with the audio decoding unit and audio output port, and the power amplifier unit receives audio decoder The audio signal that unit is sent, by output after audio signal power amplification to audio output port；The audio output port is used to connect external audio playback equipment.
- 5. the midi signal conversion equipment of electronic keyboard according to claim 1, it is characterised in that the charging module bag Include：Direct-flow input end mouth, charging control unit, lithium battery group；The input power of the direct-flow input end mouth connection+5V, and be connected with charging control unit, the charging control unit is used In the charging for controlling the lithium battery group.
- 6. the midi signal conversion equipment of electronic keyboard according to claim 2, it is characterised in that the signal processing list Member includes AC6905A chips.
- 7. the midi signal conversion equipment of electronic keyboard according to claim 4, it is characterised in that the power amplifier unit bag Include LPA4809 chips.
- 8. the midi signal conversion equipment of electronic keyboard according to claim 4, it is characterised in that the audio decoder list Member includes A9510 chips.
- 9. the midi signal conversion equipment of electronic keyboard according to claim 5, it is characterised in that the charge control list Member includes IC4054 chips.
- 10. the midi signal conversion equipment of electronic keyboard according to claim 1, it is characterised in that the terminal device Including：Mobile phone, computer, tablet computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721481147.2U CN207367592U (en) | 2017-11-08 | 2017-11-08 | The midi signal conversion equipment of electronic keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721481147.2U CN207367592U (en) | 2017-11-08 | 2017-11-08 | The midi signal conversion equipment of electronic keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207367592U true CN207367592U (en) | 2018-05-15 |
Family
ID=62345844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721481147.2U Expired - Fee Related CN207367592U (en) | 2017-11-08 | 2017-11-08 | The midi signal conversion equipment of electronic keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207367592U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108449561A (en) * | 2018-05-25 | 2018-08-24 | 广州市昇蓝演艺设备有限公司 | Time code converter |
| CN110636074A (en) * | 2019-09-29 | 2019-12-31 | 玖月音乐科技(北京)有限公司 | Double-row key tone automatic issuing system |
| WO2020047720A1 (en) * | 2018-09-03 | 2020-03-12 | 深圳博芯科技股份有限公司 | Musical instrument digital interface device |
-
2017
- 2017-11-08 CN CN201721481147.2U patent/CN207367592U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108449561A (en) * | 2018-05-25 | 2018-08-24 | 广州市昇蓝演艺设备有限公司 | Time code converter |
| CN108449561B (en) * | 2018-05-25 | 2023-10-10 | 广州市昇蓝演艺设备有限公司 | Time code converter |
| WO2020047720A1 (en) * | 2018-09-03 | 2020-03-12 | 深圳博芯科技股份有限公司 | Musical instrument digital interface device |
| CN110636074A (en) * | 2019-09-29 | 2019-12-31 | 玖月音乐科技(北京)有限公司 | Double-row key tone automatic issuing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207367592U (en) | The midi signal conversion equipment of electronic keyboard | |
| CN206506691U (en) | A kind of K for supporting portable computer sings equipment | |
| CN206879039U (en) | Support the wireless microphone and intelligent terminal karaoke OK system of usb audio | |
| CN203289645U (en) | Sound system capable of conversation based on wireless technology | |
| CN107222233A (en) | Mobile communication equipment | |
| CN206596144U (en) | A kind of children's function remote controller | |
| CN207369278U (en) | Mobile intelligent terminal with inside recording function | |
| CN208094778U (en) | A kind of voice control intelligent sound box | |
| CN207603880U (en) | Combined box | |
| CN207302613U (en) | A kind of portable intelligent sound source | |
| CN206775716U (en) | A kind of effect device for changing voice | |
| CN206100377U (en) | Headphone device | |
| CN207995372U (en) | The acoustics circuit and sound system of sharing audio input terminal | |
| CN203118200U (en) | Wireless remote control | |
| CN208707868U (en) | A kind of microphone and microphone system | |
| CN203139602U (en) | Game machine combined with action device | |
| CN205754816U (en) | Cloud audio sound card | |
| CN206948298U (en) | A kind of radio | |
| CN102005232A (en) | Terminal with music and lyric sharing function | |
| CN206835086U (en) | A kind of bluetooth transceiver | |
| CN206517588U (en) | Music player and sound system | |
| CN101621859A (en) | Portable electronic device | |
| CN205670771U (en) | A kind of wall embedded Bluetooth phone system | |
| CN205283761U (en) | Portable wireless microphone | |
| CN203455772U (en) | Keyboard signal processing system provided with high tone quality voice player |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180515 Termination date: 20201108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |