CN208489970U - Multiple sound resource integrated audio - Google Patents
Multiple sound resource integrated audio Download PDFInfo
- Publication number
- CN208489970U CN208489970U CN201821141837.8U CN201821141837U CN208489970U CN 208489970 U CN208489970 U CN 208489970U CN 201821141837 U CN201821141837 U CN 201821141837U CN 208489970 U CN208489970 U CN 208489970U
- Authority
- CN
- China
- Prior art keywords
- audio
- sound
- source
- access module
- controller
- 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.)
- Active
Links
Landscapes
- Circuit For Audible Band Transducer (AREA)
Abstract
The utility model relates to a kind of multiple sound resource integrated audio and its control methods.Wherein, sound equipment includes controller, bluetooth module, audio AM access module, source of sound selector and power amplifier；Bluetooth module, audio AM access module include multiple source of sound interfaces；Wherein, controller is connect with bluetooth module, audio AM access module, source of sound selector respectively；Source of sound selector is connect with bluetooth module, audio AM access module and power amplifier respectively.Every kind of source of sound interface is no longer respectively set in separate modules, but is respectively included in bluetooth module and audio AM access module, does not need that multiple individual modules are arranged, reduces the power consumption of sound equipment.
Description
Technical field
This application involves audio signal processing technique fields, more particularly to a kind of multiple sound resource integrated audio.
Background technique
With the development of audio signal processing technique, there is the sound equipment of integrated various tone sources, namely is capable of providing various tone sources
Interface, every kind of source of sound interface are implemented separately by each independent module, then select one of module to export by controller
Audio data access power amplifier.
During realization, utility model people has found that at least there are the following problems in traditional technology:
Current multiple sound resource integration mode, integrated source of sound interface is more, and required standalone module is also more, and power consumption is also got over
Greatly.
Utility model content
Based on this, it is necessary in view of the above technical problems, provide a kind of multiple sound resource integrated audio, multiple sources of sound can be connect
Mouth is integrated into module, reduces power consumption.
To achieve the goals above, on the one hand, the utility model embodiment provides a kind of multiple sound resource integrated audio, including
Controller, bluetooth module, audio AM access module, source of sound selector and power amplifier；
Bluetooth module, audio AM access module include multiple source of sound interfaces；
Wherein, controller is connect with bluetooth module, audio AM access module, source of sound selector respectively；
Source of sound selector is connect with bluetooth module, audio AM access module and power amplifier respectively.
It in one of the embodiments, further include computer audio frequency AM access module；
Source of sound selector includes source of sound selection circuit and door selection circuit；
Wherein, door selection circuit respectively with computer audio frequency AM access module, bluetooth module, controller and source of sound selection circuit
Connection；
Source of sound selection circuit is connect with audio AM access module, controller and power amplifier respectively.
Computer audio frequency AM access module includes operation amplifier unit in one of the embodiments,；
Operation amplifier unit is connect with door selection circuit.
It in one of the embodiments, further include audio data processor；
Audio AM access module is connect by audio data processor with source of sound selection circuit.
Audio data processor is CS4334 cake core in one of the embodiments,.
It in one of the embodiments, further include display device；
Display device is connect with controller.
It in one of the embodiments, further include remote control device；
Remote control device is connect with controller.
Bluetooth module connects controller by serial ports in one of the embodiments,.
Bluetooth module is AC6901 cake core in one of the embodiments,.
Audio AM access module is CS8416 cake core in one of the embodiments,.
A technical solution in above-mentioned technical proposal is had the following advantages and beneficial effects:
Every kind of source of sound interface is no longer respectively set in separate modules, but is respectively included in bluetooth module and audio connects
Enter in module, do not need that multiple individual modules are arranged, is based on the above connection relationship, controller can be respectively to bluetooth module, sound
Frequency AM access module and source of sound selector send selection signal；Further, bluetooth module can choose corresponding source of sound interface or
Audio data is received by Bluetooth communication, and the audio data received is transferred to source of sound selector；Audio AM access module choosing
Corresponding source of sound interface audio data is taken, and the audio data received is transferred to source of sound selector；Source of sound selector
The audio data for choosing corresponding bluetooth module or audio AM access module is exported to power amplifier.Based on each reality of the utility model
Example is applied, one of source of sound interface can be selected in conjunction with first selection signal, the second selection signal and third selection signal
The output for carrying out audio data, reduces the power consumption of sound equipment.
Detailed description of the invention
By being more particularly described for the preferred embodiment of the utility model shown in the drawings, addressed on the utility model
Other purposes, feature and advantage will become more fully apparent.Identical appended drawing reference indicates identical part in all the attached drawings, and
Attached drawing deliberately is not drawn by actual size equal proportion scaling, it is preferred that emphasis is the purport of the utility model is shown.
Fig. 1 is the first schematic block diagram of multiple sound resource integrated audio in one embodiment；
Fig. 2 is the second schematic block diagram of multiple sound resource integrated audio in one embodiment.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms in fact
It is existing, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes public affairs to the utility model
It is more thorough and comprehensive to open content.
It should be noted that it can be directly to separately when an element is considered as " connection " another element
One element and it is in combination be integrated, or may be simultaneously present centering elements.Term as used herein " installation ", " one
End ", " other end " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
In one embodiment, as shown in Figure 1, providing a kind of multiple sound resource integrated audio, including controller 170, bluetooth
Module 130, audio AM access module 110, source of sound selector 150 and power amplifier 190；
Bluetooth module 130, audio AM access module 110 include multiple source of sound interfaces；
Wherein, controller 170 is connect with bluetooth module 130, audio AM access module 110, source of sound selector 150 respectively；
Source of sound selector 150 is connect with bluetooth module 130, audio AM access module 110 and power amplifier 190 respectively；
Specifically, multiple source of sound interfaces may include AUX (Auxiliary, auxiliary) interface, USB (Universal Serial
Bus, universal serial bus), OPT (Optical, optical fiber), COA (Coaxial, coaxial) interface and HDMI (High
Definition Multimedia Interface, high-definition multimedia interface)-ARC (Audio Return Channel,
Sound passback) interface etc..
Specifically, audio AM access module can use CS8416 chip, the audio interface of CS8416 chip includes that OPT connects
Mouth, COA interface and HDMI-ARC interface；Bluetooth module can use AC6901 chip, the audio interface packet of AC6901 chip
Include AUX interface and USB interface；Controller can use STC12C56 chip；Power amplifier can use TPA5613 chip.
It should be noted that can also include the loudspeaker for sounding in sound equipment, loudspeaker be connect with power amplifier；
Loudspeaker is made a sound based on the audio data for receiving power amplifier output.
Based on above-mentioned connection relationship, the workflow of above-mentioned multiple sound resource integrated audio is carried out as described below:
Controller 170 can send first selection signal to bluetooth module 130, can send second to audio AM access module 110
Selection signal can send third selection signal to source of sound selector 150；
Bluetooth module 130 chooses the source of sound interface of corresponding first selection signal or receives audio data by Bluetooth communication,
And the audio data received is transferred to source of sound selector 150；
The source of sound interface audio data of corresponding second selection signal is chosen in audio AM access module 110, and will receive
Audio data be transferred to source of sound selector 150；
Source of sound selector 150 chooses the bluetooth module 130 of corresponding third selection signal or the audio of audio AM access module 110
Data are exported to power amplifier 190.
In above-mentioned multiple sound resource integrated audio, every kind of source of sound interface is no longer respectively set in separate modules, but respectively
It is included in bluetooth module 130 and audio AM access module 110, is selected in conjunction with first selection signal, the second selection signal and third
Selecting signal can select one of source of sound interface to carry out the output of audio data, not need that multiple individual modules are arranged,
The power consumption for reducing sound equipment, cost needed for also saving the multiple modules of purchase.
In one embodiment, as shown in Fig. 2, providing a kind of multiple sound resource integrated audio, including controller 170, bluetooth
Module 130, audio AM access module 110, computer audio frequency AM access module 210, source of sound selector 150 and power amplifier 190；
Bluetooth module 130, audio AM access module 210 include multiple source of sound interfaces；
Source of sound selector 150 includes source of sound selection circuit 151 and door selection circuit 153；
Wherein, controller 170 is selected with bluetooth module 130, audio AM access module 110, door selection circuit 153, source of sound respectively
Select the connection of circuit 151；
Door selection circuit 153 respectively with computer audio frequency AM access module 210, bluetooth module 130 and source of sound selection circuit 151
Connection；
Source of sound selection circuit 151 is connect with audio AM access module 110 and power amplifier 190 respectively；
Specifically, bluetooth module 130 connects controller 170 by serial ports, further, bluetooth module 130 includes first
(Receive is received) port RX and the first TX (Transmit is sent) port；Controller 170 includes the 2nd port RX and second
The port TX；First port RX is connect with the 2nd port TX, and the first port TX is connect with the 2nd port RX.
By IIC, (Inter-Integrated Circuit integrates electricity between controller 170 and source of sound selection circuit 151
Road bus) communicated namely controller 170 and source of sound selection circuit 151 between be connected with two-way data line and clock
Line；
Two signal lines are connected between controller 170 and door selection circuit 153；
Two signal lines are connected between controller 170 and audio AM access module 110.
Based on above-mentioned connection relationship, the workflow of above-mentioned multiple sound resource integrated audio is carried out as described below:
Controller 170 sends first selection signal to bluetooth module 130, sends the second selection to audio AM access module 110
Signal, sends the 4th selection signal to door selection circuit 153, sends the 5th selection signal to source of sound selection circuit 151；
Bluetooth module 130 chooses the source of sound interface of corresponding first selection signal or receives audio data by Bluetooth communication,
And the audio data received is transferred to a selection circuit 153；
Specifically, first selection signal corresponding with Bluetooth communication can be 0x0A.
The source of sound interface audio data of corresponding second selection signal is chosen in audio AM access module 110, and will receive
Audio data be transferred to source of sound selection circuit 151；
Door selection circuit 153 chooses the bluetooth module 130 or computer audio frequency AM access module 210 for corresponding to the 4th selection signal
Audio data is exported to source of sound selection circuit 151；
Source of sound selection circuit 151 chooses the door selection circuit 153 or audio AM access module 110 for corresponding to the 5th selection signal
Audio data is exported to power amplifier 190.
Specifically, computer audio frequency AM access module 210 includes operation amplifier unit, operation amplifier unit can use 4558 types
Operational amplifier；Operation amplifier unit is connect with door selection circuit 153；It is integrated to above-mentioned multiple sound resource based on above-mentioned connection relationship
The workflow of sound equipment is further described: operation amplifier unit can transmit the audio number received to door selection circuit 153
According to；Door selection circuit 153 chooses the audio data output of the bluetooth module 130 or operation amplifier unit of corresponding 4th selection signal
To source of sound selection circuit 151；
Audio AM access module 110 can use CS8416 chip, and the audio interface of CS8416 chip includes OPT interface, COA
Interface and HDMI-ARC interface；Bluetooth module 130 can use AC6901 chip, and the audio interface of AC6901 chip includes
AUX interface and USB interface；Door selection circuit can use CD4052 chip；Controller 170 can use STC12C56 chip；
Source of sound selection circuit 151 can use PT2313 chip；Power amplifier 190 can use TPA5613 chip.
It should be noted that computer audio frequency AM access module 210 includes the computer audio frequency interface that can be used in connecting computer, electricity
Brain audio interface is also connect with above-mentioned operation amplifier unit, and the audio data of computer can be transferred to operation by computer audio frequency interface
Amplifying unit；The coaxial audio jack of computer audio frequency interface concretely 3.5mm；Above-mentioned sound equipment can also include for sounding
Loudspeaker, loudspeaker are connect with power amplifier；Loudspeaker is based on the audio data sending sound for receiving power amplifier output
Sound.
Further, above-mentioned sound equipment may also include display device 250, and display device 250 is connect with controller 170.
Wherein, display device 250 or display, or be display screen, screen etc., specifically a kind of exportable image
Or the equipment of the thoughts and feelings information Braille display of design (for example, blind person), it may include numeral method device, X-Y scheme display,
Three dimensional display and mechanical display etc..
Specifically, display device 250 can be LED display, and display process may include step:
After sound equipment unlatching, when receiving the unlatching display data of the output of controller 170, display device 250 shows " homepage
Display "；
When receiving audio data by Bluetooth communication, the fixed display " bluetooth mode is shown " of display device 250；Whenever control
After device 170 processed receives the bluetooth discovery status code of the return of bluetooth module 130, believed based on the search condition that controller 170 is sent
Breath, display device 250 also show " bluetooth discovery " within a preset period of time；It is returned whenever controller 170 receives bluetooth module 130
After the tone playing state code returned, based on the tone playing state information that controller 170 is sent, display device 250 is gone back within a preset period of time
It shows " bluetooth broadcasting ".
Specifically, bluetooth module 130 sent bluetooth discovery status code and tone playing state code to controller 170 every 0.5 second.
It should be noted that receiving audio data by the audio interface of bluetooth module 130 or audio AM access module 110
When, the display state of display device 250 can refer to above-mentioned display process and realize.
Further, above-mentioned sound equipment may also include remote control device 230, and remote control device 230 is connect with controller 170.
Specifically, remote control device 230 can send telecommand to controller 170, controller 170 can be selected based on telecommand
The one or more selected in first control signal, second control signal, the 4th control signal and the 5th control signal exports respectively
Into bluetooth module 130, audio AM access module 110, door selection circuit 153 and source of sound selection circuit 151；Remote control device 230 can
To be infrared receiver itself or antenna receiver etc..
Further, above-mentioned sound equipment may also include audio data processor 270, and audio AM access module 110 passes through audio number
It is connect according to processor 270 with source of sound selection circuit 151.
Based on further connection relationship, the workflow of above-mentioned multiple sound resource integrated audio is further described:
The source of sound interface audio data of corresponding second selection signal is chosen in audio AM access module 110, and will receive
To audio data be transferred to source of sound selection circuit 151 the step of include:
The source of sound interface audio data of corresponding second selection signal is chosen in audio AM access module 110, and will receive
Audio data be transferred to audio data processor 270；
Receive audio AM access module 110 transmission audio data when, audio data processor 270 to audio data into
Row processing, and data are transferred to source of sound selection circuit 151 by treated；
Source of sound selection circuit 151 chooses the door selection circuit 153 or audio AM access module 110 for corresponding to the 5th selection signal
Audio data is exported includes: to the step of power amplifier 190
Source of sound selection circuit 151 chooses the door selection circuit 153 or audio data processor 270 of corresponding 5th selection signal
Audio data export to power amplifier 190.
Specifically, CS4334 chip can be used in audio data processor 270, CS4334 chip can filter audio data
Wave and digital-to-analogue conversion process.
Above-mentioned sound equipment is additionally arranged computer audio frequency AM access module 210, display device 250, audio number compared to a upper embodiment
According to processor 270 and remote control device 230, wherein computer audio frequency AM access module 210 can obtain the audio data of computer, make audio
Data are output to power amplifier 190 by door selection circuit 153, source of sound selection circuit 151；Wherein display device 250 can root
According to the instruction of controller 170, the information such as broadcast state, source of sound are shown；Wherein audio data processor 270 can handle audio and connect
Enter the audio data of the output of module 110；Wherein remote control device 230 can with remote control controller 170 issue first control signal,
Second control signal, the 4th control signal or the 5th control signal, further enrich the function of sound equipment, enhance the suitable of sound equipment
Use range.
It will be understood by those skilled in the art that Fig. 1 and structure shown in Figure 2, only relevant to application scheme
The block diagram of part-structure does not constitute the restriction to application scheme, and specific multiple sound resource integrated audio may include than in figure
Shown more or fewer components perhaps combine certain components or with different component layouts.
Above-mentioned multiple sound resource integrated audio can be used for family's playback, it can also be used to be used for dancing hall, Karaoke, cinema, meeting
The professional entertainment such as hall and stadiums place, it is also possible to make automobile audio.Sound equipment may also include peripheral equipment such as compressor, effect
Device, balanced device, VCD, DVD etc.；Loudspeaker such as speaker, loudspeaker etc.；For example stereo field fabrication sound console of sound console, recording tuning
Platform, music sound console, digital routing mixing console, the sound console with power amplifier, radio broadcasting sound console, arenas sound console, public address tune
Sound platform, wired broadcasting sound console and portable sound console etc.；Microphone etc..Wherein, it may include high pitch, bass, three kinds of middle pitch
One or more of loudspeaker.
Wherein microphone may include electrodynamic type (moving-coil type, aluminium band type), condenser type (direct current polarization formula), piezoelectric type (crystal
Formula, ceramic-type) and electromagnetic type, carbon granules formula, semiconductor-type etc..
In order to which the specific structure of the application is further described, below with reference to a specific example, illustrate the utility model
The specific workflow of multiple sound resource integrated audio.
Based on the above connection relationship, controller can be sent out to bluetooth module, audio AM access module and source of sound selector respectively
Send selection signal；Further, bluetooth module can choose corresponding source of sound interface or receive audio data by Bluetooth communication, and
The audio data received is transferred to source of sound selector；Corresponding source of sound interface audio number is chosen in audio AM access module
According to, and the audio data received is transferred to source of sound selector；Source of sound selector chooses corresponding bluetooth module or audio connects
The audio data for entering module is exported to power amplifier.
Specifically, controller can send first selection signal to bluetooth module；First selection signal is used to indicate bluetooth mould
Block chooses the source of sound interface of corresponding first selection signal or receives audio data, and the audio number that will be received by Bluetooth communication
According to being transferred to source of sound selector；
Controller can send the second selection signal to audio AM access module；Second selection signal is used to indicate audio access mould
Block chooses the source of sound interface audio data of corresponding second selection signal, and the audio data received is transferred to source of sound choosing
Select device；
Controller can send third selection signal to audio selection module；Third selection signal is used to indicate source of sound selector
The audio data of the bluetooth module of corresponding third selection signal or audio AM access module is exported to power amplifier.
Further, controller can send first selection signal to bluetooth module；First selection signal is used to indicate bluetooth
Module chooses corresponding source of sound interface or receives audio data by Bluetooth communication, and the audio data received is transferred to door
Selection circuit；
Controller can send the second selection signal to audio AM access module；Second selection signal is used to indicate audio access mould
Block chooses corresponding source of sound interface audio data, and the audio data received is transferred to source of sound selection circuit；
Controller can send the 4th selection signal to door selection circuit；4th selection signal is used to indicate a selection circuit will
The bluetooth module of corresponding 4th selection signal or the audio data of computer audio frequency AM access module export and give source of sound selection circuit；
Controller can send the 5th selection signal to source of sound selection circuit；5th selection signal is used to indicate source of sound selection electricity
Road exports the audio data of the door selection circuit of corresponding 5th selection signal or audio AM access module to power amplifier.
Further, controller can send the 4th selection signal to door selection circuit；4th selection signal is used to indicate door
The audio data of the bluetooth module of corresponding 4th selection signal or operation amplifier unit is exported and selects electricity to source of sound by selection circuit
Road.
Further, when controller can send the second selection signal to audio AM access module；Second selection signal is for referring to
Show that the source of sound interface audio data of corresponding second selection signal, and the audio data that will be received are chosen in audio AM access module
It is transferred to audio data processor；
Wherein, audio data processor handles audio data, and data are transferred to source of sound selection by treated
Circuit；
Controller can send the 5th selection signal to source of sound selection circuit；5th selection signal is used to indicate source of sound selection electricity
Road exports the audio data of the door selection circuit of corresponding 5th selection signal or audio data processor to power amplifier.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
Above embodiments only express the several embodiments of the utility model, and the description thereof is more specific and detailed, but simultaneously
The limitation to utility model patent range therefore cannot be interpreted as.It should be pointed out that for the ordinary skill people of this field
For member, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this reality
With novel protection scope.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of multiple sound resource integrated audio, which is characterized in that including controller, bluetooth module, audio AM access module, source of sound selection
Device and power amplifier；
The bluetooth module, the audio AM access module include multiple source of sound interfaces；
Wherein, the controller is connect with the bluetooth module, the audio AM access module, the source of sound selector respectively；Institute
Source of sound selector is stated to connect with the bluetooth module, the audio AM access module and the power amplifier respectively.
2. multiple sound resource integrated audio according to claim 1, which is characterized in that further include computer audio frequency AM access module；
The source of sound selector includes source of sound selection circuit and door selection circuit；
Wherein, the door selection circuit respectively with the computer audio frequency AM access module, the bluetooth module, the controller and
The source of sound selection circuit connection；
The source of sound selection circuit is connect with the audio AM access module, the controller and the power amplifier respectively.
3. multiple sound resource integrated audio according to claim 2, which is characterized in that the computer audio frequency AM access module includes fortune
Calculate amplifying unit；
The operation amplifier unit is connect with the door selection circuit.
4. multiple sound resource integrated audio according to claim 2 or 3, which is characterized in that further include audio data processor；
The audio AM access module is connect by the audio data processor with the source of sound selection circuit.
5. multiple sound resource integrated audio according to claim 4, which is characterized in that the audio data processor is CS4334
Cake core.
6. according to claim 1 to multiple sound resource integrated audio described in 3 any one, which is characterized in that further include display device；
The display device is connect with the controller.
7. according to claim 1 to multiple sound resource integrated audio described in 3 any one, which is characterized in that further include remote control device；
The remote control device is connect with the controller.
8. according to claim 1 to multiple sound resource integrated audio described in 3 any one, which is characterized in that the bluetooth module is logical
It crosses serial ports and connects the controller.
9. the multiple sound resource integrated audio according to claim 8, which is characterized in that the bluetooth module is AC6901 type core
Piece.
10. according to claim 1 to multiple sound resource integrated audio described in 3 any one, which is characterized in that the audio accesses mould
Block is CS8416 cake core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821141837.8U CN208489970U (en) | 2018-07-17 | 2018-07-17 | Multiple sound resource integrated audio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821141837.8U CN208489970U (en) | 2018-07-17 | 2018-07-17 | Multiple sound resource integrated audio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208489970U true CN208489970U (en) | 2019-02-12 |
Family
ID=65247610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821141837.8U Active CN208489970U (en) | 2018-07-17 | 2018-07-17 | Multiple sound resource integrated audio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208489970U (en) |
-
2018
- 2018-07-17 CN CN201821141837.8U patent/CN208489970U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102497609B (en) | Wireless network sound system | |
| CN102147566A (en) | Multimedia projector with embedded operation system | |
| WO2014023190A1 (en) | Modularized television | |
| CN205377888U (en) | Intelligent broadcasting system of integration | |
| CN105338270A (en) | Modularization television | |
| CN208489970U (en) | Multiple sound resource integrated audio | |
| CN106535063B (en) | A kind of wireless network audio high-fidelity streaming media playing machine | |
| CN206313981U (en) | A kind of wireless network audio high-fidelity streaming media playing machine | |
| CN209882073U (en) | Exempt from to install wireless digital cinema stereo set | |
| CN101197954A (en) | Multifunctional integrated player | |
| CN101990074A (en) | Television with audio playing function | |
| CN206341386U (en) | A kind of audio-visual Karaoke one decoding power amplifier | |
| CN111200712A (en) | Audio processing device, karaoke circuit board and television all-in-one machine | |
| CN103079142B (en) | A kind of wireless bass big gun bass time delay adjustable system and method | |
| CN101605215B (en) | Digital photo frame integrated with wireless receiving module | |
| CN109346048B (en) | Karaoke sound effect processing device and sound effect processing system | |
| CN214544789U (en) | Power amplifier all-in-one machine with network audio-video playing function | |
| CN2702557Y (en) | Accompanying sound processing circuit for picture in picture television | |
| CN217335888U (en) | Audio-visual system based on switching sound channel surround sound | |
| CN201044476Y (en) | Home theater circuit | |
| CN205943467U (en) | Audio playback device and terminal | |
| CN204836519U (en) | Intelligent stereo set that support touch -sensitive screen and many screen display show | |
| CN202014323U (en) | Television | |
| CN109005481A (en) | Multiple sound resource integrated audio, control method, equipment and control device | |
| CN203278982U (en) | Multifunctional video signal generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |