CN208462058U - Bluetooth transmitters - Google Patents
Bluetooth transmitters Download PDFInfo
- Publication number
- CN208462058U CN208462058U CN201820973327.0U CN201820973327U CN208462058U CN 208462058 U CN208462058 U CN 208462058U CN 201820973327 U CN201820973327 U CN 201820973327U CN 208462058 U CN208462058 U CN 208462058U
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- China
- Prior art keywords
- main control
- control chip
- bluetooth transmitters
- card
- electrically connected
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- 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.)
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Abstract
This application discloses a kind of bluetooth transmitters.The bluetooth transmitters include: main control chip, USB sound card, SPI interface, USB interface and blue-tooth device, wherein, the USB sound card and the main control chip are electrically connected, main control chip described in the main control chip is sent by the digital audio and video signals that the USB sound card obtains and the blue-tooth device is electrically connected, so that the digital audio and video signals are sent to external played equipment by the blue-tooth device.The application is by using USB sound card, it can be used as sound card that audio data is taken to be transmitted to Bluetooth recipient devices in charging on computers, the audio data of USB flash disk or TF card can also be transmitted to Bluetooth recipient devices by USB interface or SPI interface, the all digital signals of this process, avoid the interference problem of analog signal, can height reduction original audio signal.The problems such as present application addresses existing bluetooth transmitters as being transmitted caused by audio signal by audio transiting wire vulnerable to interference, influence sound quality.
Description
Technical field
This application involves a kind of audio signal transmitting/receiving devices, in particular to a kind of bluetooth transmitters.
Background technique
Bluetooth transmitters are a kind of Bluetooth electronic products, and the audio signal of TV or computer is used to pass through blue-tooth device
It is sent to bluetooth headset or Baffle Box of Bluetooth, so that TV or computer without Bluetooth function is become blue tooth television and computer, greatly
The audio experience for improving user.
Existing bluetooth transmitters are connected on computer or television by the audio transiting wire of 3.5mm, and the method is used
Interference can be usually introduced in the occasion for having Switching Power Supply, influences sound quality, interference is encountered and significantly also allows people very uncomfortable.It is this to make an uproar
The introducing of sound is that easy be disturbed of analog signal is determined, the power supply with audio signal source devices, the quality of tone frequency channel wire,
The electromagnetic interference of equipment of itself, the electromagnetic interference in complex environment be all it is related, can all influence the experience sense of user.
Aiming at the problem that bluetooth transmitters in the related technology are vulnerable to interference, currently no effective solution has been proposed.
Utility model content
The main purpose of the application is to provide a kind of bluetooth transmitters, to solve existing bluetooth transmitters due to passing through
3.5mm audio transiting wire transmission audio signal and caused by vulnerable to interference, influence sound quality the problems such as.
To achieve the goals above, this application provides a kind of bluetooth transmitters.
Bluetooth transmitters according to the application include: main control chip, USB sound card and blue-tooth device, the USB sound card with
The main control chip is electrically connected, and sends the main control chip for the digital audio and video signals that the USB sound card obtains；The master
It controls chip and the blue-tooth device is electrically connected, broadcast so that the digital audio and video signals are sent to outside by the blue-tooth device
Put equipment.
Further, the bluetooth transmitters further include: at least one SPI interface and at least one USB interface, it is described
SPI interface and the USB interface are electrically connected with the main control chip respectively.
Further, the bluetooth transmitters further include: 3.5mm audio interface and analog-to-digital conversion module, the 3.5mm sound
Frequency interface and analog-to-digital conversion module are electrically connected, and the analog-to-digital conversion module and the main control chip are electrically connected.
Further, the bluetooth transmitters further include: at least one of TF card interface and SD card interface, the TF card
Interface and SD card interface are electrically connected with the main control chip respectively.
Further, the USB sound card includes: the USB joint and sound card chip for connecting external equipment, described
USB joint and the sound card chip are electrically connected, and the sound card chip and the main control chip are electrically connected.
Further, the bluetooth transmitters further include: TF card interface and TF card, the TF card are inserted into the TF card interface
In and be electrically connected with the TF card interface, the TF card interface and the main control chip are electrically connected.
Further, the bluetooth transmitters further include: audio output interface, the audio output interface and the master control
Chip is electrically connected.
Further, the bluetooth transmitters further include: microphone and analog-to-digital conversion module, the microphone and the mould
Number conversion module is electrically connected, and the analog-to-digital conversion module and the main control chip are electrically connected.
Further, the bluetooth transmitters further include: for prompting the state of the bluetooth transmitters working condition to mention
Show that lamp, the condition prompting lamp and the main control chip are electrically connected.
Further, the main control chip includes: SR6058 chip.
In the embodiment of the present application, the digital audio-frequency data on TV or computer is directly acquired using USB sound card, it can also be with
Digital audio-frequency data is directly acquired by USB or SPI interface, and digital audio-frequency data is sent to by blue-tooth device by bluetooth ear
Machine or speaker, since the application uses USB sound card, all digital signals of process audio transmission process avoid simulation letter
Number interference problem, can height reduction original audio signal, to solve existing bluetooth transmitters due to passing through
3.5mm audio transiting wire transmission audio signal and caused by vulnerable to interference, influence sound quality the problems such as.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present application, so that the application's is other
Feature, objects and advantages become more apparent upon.The illustrative examples attached drawing and its explanation of the application is for explaining the application, not
Constitute the improper restriction to the application.In the accompanying drawings:
Fig. 1 is embodiment bluetooth transmitters first structure diagram；
Fig. 2 is the second structural schematic diagram of embodiment bluetooth transmitters；
Fig. 3 is embodiment main control chip connection figure；
Fig. 4 is embodiment SD card and main control chip connection figure；And
Fig. 5 is embodiment condition prompting lamp and main control chip connection figure.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
In this application, term " on ", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outside",
" in ", "vertical", "horizontal", " transverse direction ", the orientation or positional relationship of the instructions such as " longitudinal direction " be orientation based on the figure or
Positional relationship.These terms are not intended to limit indicated dress primarily to better describe the application and embodiment
Set, element or component must have particular orientation, or constructed and operated with particular orientation.
Also, above-mentioned part term is other than it can be used to indicate that orientation or positional relationship, it is also possible to for indicating it
His meaning, such as term " on " also are likely used for indicating certain relations of dependence or connection relationship in some cases.For ability
For the those of ordinary skill of domain, the concrete meaning of these terms in this application can be understood as the case may be.
In addition, term " installation ", " setting ", " being equipped with ", " connection ", " connected ", " socket " shall be understood in a broad sense.For example,
" connection " may be a fixed connection, and be detachably connected or monolithic construction；It can be mechanical connection, or electrical connection；It can be straight
It connects connected, or indirectly connected through an intermediary, or is two companies internal between device, element or component
It is logical.For those of ordinary skills, can understand as the case may be above-mentioned term in this application specifically contain
Justice.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in Figure 1, the bluetooth transmitters of the application include: main control chip 1, USB sound card 2 and blue-tooth device 3, wherein
USB sound card 2 and blue-tooth device 3 are electrically connected with the main control chip 1 respectively.In the present embodiment, USB sound card 2 is connected to electricity
Depending on or computer on, obtain the digital audio data signals that come from TV or computer transmission.USB sound card 2 includes sound card chip,
Computer sound card can be shielded when USB sound card 2 is inserted into computer, directly obtains digital audio and video signals from computer.And then pass through USB sound card
2 digital audio and video signals obtained are transferred to main control chip 1, and then digital audio and video signals are sent to bluetooth and filled by main control chip 1
It sets on 3, and digital audio and video signals is transferred in bluetooth headset or Baffle Box of Bluetooth by blue-tooth device 3 and are played out.
As shown in figure 3, main control chip 1 uses SR6058 main control chip in the alternative embodiment of the application.
In this application, USB sound card 2 includes the USB joint for connecting computer or television, and is carried out to data-signal
The sound card chip of processing, wherein sound card chip and main control chip 1 are electrically connected, and digital audio and video signals are sent to SR6058 master control
On chip 1.In the alternative embodiment of the application, sound card chip can be integrated on SR6058 main control chip 1, not only be dropped
Low cost, also reduces the volume of bluetooth transmitters.
In the present embodiment, the USB joint of USB sound card 2 is also used to be powered for the bluetooth transmitters, USB joint with
The power module of bluetooth transmitters is electrically connected, and when USB joint is inserted into computer or television, is filled in real time to power module
Electricity.Power module also includes protection circuit simultaneously, prevents the problem for causing the power module service life short that overcharges.
The USB sound card 2 for using the prior art in this application, for obtaining digital sound from the equipment such as computer or television
Frequency signal.
The bluetooth transceiver therein 3 for using the prior art in this application, for sending out digital audio and video signals by bluetooth
It is sent in bluetooth headset or speaker.
As shown in Figure 1, the bluetooth transmitters of the application further include: the SPI for obtaining auditory digital data from external equipment connects
Mouth 4；For connecting external USB equipment, and from external USB equipment obtain auditory digital data USB interface 5；For being inserted into
SD card, and from SD card read auditory digital data SD card interface 6；And for being inserted into TF card, and sound is read from TF card
The TF card interface 7 of frequency digital data, wherein SPI interface 4, USB interface 5, SD card interface 6 and TF card interface 7 respectively with SR6058
Main control chip 1 is electrically connected, and auditory digital data is transferred in SR6058 main control chip 1 with realizing.
In the present embodiment, which further includes a TF RAM card, which is inserted into TF card interface 7
In, user can prestore some music in TF RAM card, and SR6058 main control chip 1 can be read directly to be stored up in TF RAM card
The music digit data deposited, and then music digit data are sent in bluetooth headset or speaker by blue-tooth device 3 and are broadcast
It puts, realizes the pocket music playing function of similar MP3, while can also be used as card reader use, further improve the production
The functionality of product.
As shown in Figures 3 and 4, the CMD pin of the TF RAM card is connect with the SD-CMD pin of SR6058 main control chip 1, TF
The CLK pin and CARD-DET pin of RAM card are connect with the SD-CLK pin of SR6058 main control chip 1 respectively, TF RAM card
DAT0 pin connect with the SD-DAT pin of SR6058 main control chip 1, the VDD pin of TF RAM card connects 3V3 power supply.
As shown in Figure 1, the bluetooth transmitters of the application further include: audio input interface 8 and audio output interface 9, audio
Input interface 8 and audio output interface 9 are electrically connected with SR6058 main control chip 1 respectively, in this embodiment, audio input interface
8 be a 3.5mm audio interface, therefore the bluetooth transmitters can also be connect by 3.5mm data switch line with computer or television,
And receive audio data, it is analog audio data since 3.5mm data switch line receives, cannot be directly filled by bluetooth
It sets 3 and is sent to bluetooth headset, therefore the bluetooth transmitters further comprise analog to digital conversion circuit, for 3.5mm data switch line
The analog audio data received is converted to digital audio and video signals, and then is sent to SR6058 main control chip 1.
As shown in figure 3, audio input interface 8 is connect with the DACL pin of SR6058 main control chip 1 and DACR pin, sound
Frequency output interface 9 is connect with the AUXR-PA4 pin of SR6058 main control chip 1 and AUXR-PA3 pin respectively.
As shown in Figure 1, the bluetooth transmitters of the application further include: for receiving the microphone apparatus 10 of user speech, wheat
Gram wind apparatus 10 and SR6058 main control chip 1 are electrically connected.The microphone apparatus 10 includes the microphone of acquisition user speech, with
And the speech simulation data that microphone acquires are converted to the analog to digital conversion circuit of numerical data, wherein analog to digital conversion circuit with
SR6058 main control chip 1 is electrically connected, and the voice digital signal of user is sent to SR6058 main control chip 1.The application's
Bluetooth transmitters pass through bluetooth transmitters transmission voice to bluetooth headset since user may be implemented provided with microphone apparatus 10
Or Baffle Box of Bluetooth, realize the function of similar loudspeaker.
As shown in Figure 1, the bluetooth transmitters further include multiple and 1 connection status warning light 11 of SR6058 main control chip, shape
State warning light 11 is used to show the working condition of the bluetooth transmitters, and in the present embodiment, condition prompting lamp 11 is LED luminous two
Pole pipe.Wherein, these LED light emitting diodes: for prompting blue-tooth device and bluetooth headset to match connection status；For prompting TF
RAM card insert state；For prompting the working condition of USB sound card 2；For prompting the working condition of microphone apparatus 10；With
In the connection status etc. of prompt audio input interface 8.
As shown in figure 5, condition prompting lamp 11 is used to prompt blue-tooth device and bluetooth headset to match the LED2 of connection status
It is connect with the LED-PC5 pin of SR6058 main control chip 1；Condition prompting lamp 11 is used to prompt TF RAM card insert state
LED3 is connect with the LED-PA6 pin of SR6058 main control chip 1；The work shape for being used to prompt USB sound card 2 of condition prompting lamp 11
The LED-PA5 pin of LED4 and the SR6058 main control chip 1 of state is connect；Condition prompting lamp 11 is used to prompt audio input interface
The LED-PA7 pin of LED6 and the SR6058 main control chip 1 of 8 connection status is connect.
The Bluetooth transmission device of the present embodiment further includes various control key, such as switch key, mode selection button, is broadcast
Playback amount increases key, broadcast sound volume reduces the control buttons such as key, fast forward button and rewind button, keeps user's use more square
Just.
It can be seen from the above description that the application realizes following technical effect:
1. the application can be used as sound card that audio data is taken to be transmitted in charging on computers by using USB sound card
Bluetooth recipient devices, all digital signals of this process, avoid the interference problem of analog signal, can height reduction it is former
Carry out audio signal.
2. the bluetooth transmitters of the application have the interface equipment of a variety of connection external equipments, such as SPI interface, USB connect
Mouth, TF card interface and SD card interface, can directly extract digital audio and video signals, direct bluetooth from SD card, TF card or USB device
It sends out, all digital signals of whole process avoid the interference problem of analog signal, highly restore original audio letter
Number.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of bluetooth transmitters characterized by comprising main control chip, USB sound card and blue-tooth device,
The USB sound card and the main control chip are electrically connected, and send institute for the digital audio and video signals that the USB sound card obtains
State main control chip；
The main control chip and the blue-tooth device are electrically connected, so that the digital audio and video signals are sent out by the blue-tooth device
It is sent to external played equipment.
2. bluetooth transmitters according to claim 1, which is characterized in that the bluetooth transmitters further include: at least one
SPI interface and at least one USB interface, the SPI interface and the USB interface are electrically connected with the main control chip respectively.
3. bluetooth transmitters according to claim 1, which is characterized in that the bluetooth transmitters further include: 3.5mm audio
Interface and analog-to-digital conversion module, the 3.5mm audio interface and analog-to-digital conversion module are electrically connected, the analog-to-digital conversion module with
The main control chip is electrically connected.
4. bluetooth transmitters according to claim 1 or 2, which is characterized in that the bluetooth transmitters further include: TF card connects
At least one of mouth and SD card interface, the TF card interface and SD card interface are electrically connected with the main control chip respectively.
5. bluetooth transmitters according to claim 1, which is characterized in that the USB sound card includes: to set for connecting outside
Standby USB joint and sound card chip, the USB joint and the sound card chip are electrically connected, the sound card chip with it is described
Main control chip is electrically connected.
6. bluetooth transmitters according to claim 1, which is characterized in that the bluetooth transmitters further include: TF card interface
And TF card, the TF card are inserted into the TF card interface and are electrically connected with the TF card interface, the TF card interface with it is described
Main control chip is electrically connected.
7. bluetooth transmitters according to claim 1, which is characterized in that the bluetooth transmitters further include: audio output
Interface, the audio output interface and the main control chip are electrically connected.
8. bluetooth transmitters according to claim 1, which is characterized in that the bluetooth transmitters further include: microphone and
Analog-to-digital conversion module, the microphone and the analog-to-digital conversion module are electrically connected, the analog-to-digital conversion module and the master control
Chip is electrically connected.
9. bluetooth transmitters according to claim 1, which is characterized in that the bluetooth transmitters further include: for prompting
The condition prompting lamp of the bluetooth transmitters working condition, the condition prompting lamp and the main control chip are electrically connected.
10. bluetooth transmitters according to claim 1, which is characterized in that the main control chip includes: SR6058 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820973327.0U CN208462058U (en) | 2018-06-21 | 2018-06-21 | Bluetooth transmitters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820973327.0U CN208462058U (en) | 2018-06-21 | 2018-06-21 | Bluetooth transmitters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208462058U true CN208462058U (en) | 2019-02-01 |
Family
ID=65168598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820973327.0U Expired - Fee Related CN208462058U (en) | 2018-06-21 | 2018-06-21 | Bluetooth transmitters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208462058U (en) |
-
2018
- 2018-06-21 CN CN201820973327.0U patent/CN208462058U/en not_active Expired - Fee Related
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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: 20190201 Termination date: 20190621 |