CN207116839U - Interface arrangement - Google Patents
Interface arrangement Download PDFInfo
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- CN207116839U CN207116839U CN201720645889.8U CN201720645889U CN207116839U CN 207116839 U CN207116839 U CN 207116839U CN 201720645889 U CN201720645889 U CN 201720645889U CN 207116839 U CN207116839 U CN 207116839U
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Abstract
A kind of interface arrangement, including：Type C interface；Charging inlet, for connecting power supply；COBBAIF, for connecting audio frequency apparatus；PD control chip, it is connected with charging inlet and Type C interface, for controlling the charging signals between charging inlet and Type C interface to transmit；Data control chip, it is connected with COBBAIF and Type C interface, for controlling the audio signal transmission between COBBAIF and Type C interface.Interface arrangement can support charging and audio to play simultaneously.
Description
Technical field
It the utility model is related to mobile technology field, more particularly to a kind of interface arrangement.
Background technology
USB interface is now widely used coffret, is gradually being increased using the product of USB device.Keyboard, mouse
Mark, joystick, audio amplifier, scanner etc., the part being inserted in the past in the external expansion interface such as serial, parallel, or even before some
The equipment being connected in computer internal expansion slots, all start the interface appearance with USB interface, the growth momentum of UBS equipment is just
At the top of one's power and career.
Existing USB technologies are divided into USB2.1, USB3.0, Type-C and Apple Inc. lightning.It is but existing
Technology application surface is narrower, and operational version is single, can not carry the situation that multiple signals carry out different operating simultaneously.
Fig. 1 is refer to, is the structural representation of existing USB2.1 interfaces.The USB2.1 interfaces include four pins,
Respectively lead 1：Positive source；Lead 2：Negative voltage data line；Lead 3：Positive voltage data wire；Lead 4：Ground wire.
USB2.1 can only be charged and data transfer, can not realize that audio signal directly inputs the function of earphone on earphone interface.
And common USB Type-C can not simultaneous transmission audio signal and charging signals.The lightning of Apple Inc.
Interface can carry out audio signal and charging signals transmission respectively, but both can not work simultaneously, and lighting Interface designs
Defect, reliability is poor, poor to the high-frequency signal antijamming capability of pursuit higher transfer rate.Fig. 2 is refer to, is
The structural representation of lightning interfaces.
Therefore, existing USB technologies so that the USB interface of mobile terminal can not carry out second signal while charging
Transmission.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of interface arrangement, solves to be charged and broadcast simultaneously
The problem of playback frequency.
In order to solve the above problems, the utility model provides a kind of interface arrangement, including：Type-C interfaces；Charging
Mouthful, for connecting power supply；COBBAIF, for connecting audio frequency apparatus；PD control chip, with the charging inlet and described
Type-C interfaces connect, for controlling the charging signals between the charging inlet and the Type-C interfaces to transmit；Data control
Coremaking piece, it is connected with the COBBAIF and the Type-C interfaces, for controlling the COBBAIF to be connect with the Type-C
Audio signal transmission between mouthful.
Optionally, the power supply is power supply adaptor or the mobile terminal with battery.
Optionally, the PD control chip is used to control charging signals to transmit from high voltage end to low-voltage end.
Optionally, the PD control chip is connected with the power pins of the Type-C interfaces, in the PD control
Charging current is transmitted between chip and the power pins.
Optionally, the PD control chip is connected with the collocation channel pin of the Type-C interfaces, in the PD
Charge arrangement information is transmitted between control chip and the collocation channel pin.
Optionally, positive voltage data pin, the negative voltage data of the data control chip and the Type-C interfaces are drawn
Pin and the connection of preset pin, for transmitting R channel number between the data control chip and the positive voltage data pin
According to, transmit left channel data between the data control chip and the negative voltage data pin, the data control core
Mike's data are transmitted between piece and the preset pin.
Optionally, the charging inlet be Type-C interfaces, Type-A interfaces, Micro-A interfaces, Micro-B interfaces,
One or more in Lightning interfaces or Type Mini B interface.
Optionally, the COBBAIF be 3.5mm interfaces, 6.3mm interfaces, 2.5mm interfaces, Type-C interfaces or
One or more in Lingtning interfaces.
Switching device of the interface arrangement of the present utility model as Type-C interfaces, there is charging inlet and COBBAIF,
The method for transmitting signals of the interface arrangement and the interface arrangement can support charging and audio playing function simultaneously.And the interface
Device uses USBPD technologies, and charge power is big, safe, and speed is fast, and supports two-way charging, Type-C interfaces and charging
Charging signals between interface can be transmitted from charging inlet to Type-C interfaces, can also be transmitted from Type-C interfaces to charging
Interface.
Brief description of the drawings
Fig. 1 is the structural representation of USB2.1 interfaces in the prior art；
Fig. 2 is the structural representation of Lightning interfaces in the prior art；
Fig. 3 is the structural representation of the interface arrangement of the embodiment of the utility model one；
Fig. 4 is the mount structure schematic diagram of the Type-C interfaces of the embodiment of the utility model one；
Fig. 5 is the schematic flow sheet of the method for transmitting signals of the interface arrangement of the embodiment of the utility model one.
Embodiment
Below in conjunction with the accompanying drawings to the embodiment of interface arrangement provided by the utility model and its method for transmitting signals
Elaborate.
Fig. 3 is refer to, is the structural representation of the interface arrangement of the embodiment of the utility model one.
Interface arrangement 300, including：Type-C interfaces 301, charging inlet 302, COBBAIF 303, PD control chip 304
And data control chip 305.
Type-C interfaces 301 are used to connect the mobile terminal with Type-C interfaces, such as mobile phone, Macbook, flat board electricity
Brain etc..Type-C interfaces 301 can be public mouth, or female seat.In this specific embodiment, Type-C interfaces 301 are
Type-C public affairs mouths.
Charging inlet 302, for connecting power supply, such as power supply adaptor and the mobile terminal with battery etc..Charging
Interface 302 is used to export charging signals or receives charging signals.Interface arrangement 300 can have multiple charging inlets 302, fill
Electrical interface 302 can also be multiple interfaces type, such as Type-C interfaces, Type-A interfaces, Micro-A interfaces, Micro-B
One or more in interface, Lightning interfaces or Type Mini B interface.In other specific implementations of the present utility model
In mode, charging inlet 302 can also be connected to mobile terminal or storage device, for carrying out data transmission.
COBBAIF 303, for connecting audio frequency apparatus, such as earphone, microphone, sound equipment etc., for exporting and/or inputting
Voice data.Interface arrangement 300 can have multiple COBBAIFs 303, and COBBAIF 303 can also be multiple interfaces type,
Such as the one or more in 3.5mm interfaces, 6.3mm interfaces, 2.5mm interfaces, Type-C interfaces or Lightning interfaces.
PD control chip 304, be connected with charging inlet 302 and Type-C interfaces 301, for control charging inlet 302 with
The transmission of charging signals between Type-C interfaces 301.PD control chip 304 supports USB PD (Power Delivery) associations
View, charging signals can be received from charging inlet 302 and are transmitted to Type-C interfaces 301, can also be from Type-C interfaces 301
Receive charging signals and transmit to charging inlet 302.PD control chip 304 can detect charging according to the state of external equipment
Interface 302 and voltage at Type-C interfaces 301, are switched between power supply and load condition accordingly, if interface arrangement 300
The voltage of Type-C interfaces 301 is less than the voltage of charging inlet 302, then PD control chip 304 is in power supply status, from charging
Mouth 302 receives charging signals and transmitted to Type-C interfaces 301；If the voltage of the Type-C interfaces 301 of interface arrangement 300 is big
In the voltage of charging inlet 302, then PD control chip 304 is in load condition, and charging signals are received from Type-C interfaces 301
And transmit to charging inlet 302.During control charging signals transmission, PD control chip 304 can also be according to charging
Charging signals are boosted the performance for the equipment that mouth 302 is connected with Type-C interfaces 301 or decompression processing.
Data control chip 305, it is connected with COBBAIF 303 and Type-C interfaces 301, for controlling COBBAIF 303
With the audio signal transmission between Type-C interfaces 301.Data control chip 305 is used for the audio for inputting COBBAIF 303
Signal is transmitted to Type-C interfaces 301；It is also used for receiving the audio signal inputted from Type-C interfaces 301, and transmits to audio
Interface 303.
Interface arrangement 300 can be connected to a mobile terminal by Type-C interfaces 301, be connected by charging inlet 302
To power supply, mobile terminal is charged；The audio frequency apparatuses such as earphone are connected to by COBBAIF 303.Can be in the same of charging
When, audio file is played by audio frequency apparatus.Also, charging inlet 302 can also be connected to other-end equipment, interface arrangement
300 support two-way charge function, when the electricity of mobile terminal is less than the electricity of other-end equipment, can pass through other-end
Equipment charges to mobile terminal；When the electricity of other-end equipment is less than the electricity of mobile terminal, can also can lead to
Cross mobile terminal and give other-end equipment charge.Interface arrangement 300 can also be connected to multiple terminal devices, Yi Ji electricity simultaneously
Source, while multiple terminal devices are charged.
Fig. 4 is refer to, is the mount structure schematic diagram of the Type-C interfaces of the embodiment of the utility model one.
Type-C interfaces have a symmetrical mount structure of two rows, respectively A1~A12, B1~B12, therefore, Type-
C interfaces support just to insert and anti-plug, do not differentiate between positive and negative.
In a detailed embodiment, power pins A4, A9, B4 of PD control chip 304 and Type-C interfaces 301
Connected with B9, for transmitting charging current between PD control chip 304 and power pins.
In a detailed embodiment, PD control chip 304 also with the collocation channel pin A5 of Type-C interfaces 301 and
B5 connections, for transmitting charge arrangement information between PD control chip 304 and collocation channel pin, charge arrangement information is for example
The information such as charging voltage that charge power supply can be supported, charging current, power, and the information of power supply role exchange, with adjustment
PD control chip 304 is in power supply status or load condition.
In a detailed embodiment, the Type-C interfaces 301 of interface arrangement 300 are connected to mobile terminal, now connect
Mouth device 300 is used as adapter, from acquisition for mobile terminal power supply and usb data.And when electric from the charging of the insertion of charging inlet 302 one
Source, Type-C interfaces 301 receive enable signal with charging inlet 302, and PD control chip 304 detects correct external electricity
After source, by collocation channel pin, power supply role exchange order is sent to mobile terminal according to USB PD agreements, state is adjusted
Whole is power supply status, and using interface arrangement 300 as power output end, and mobile terminal is changed into load end, now charging inlet 302
Voltage be higher than the terminal voltage of Type-C interfaces 301, interface arrangement 300 forms a PD information transparent transmission between power supply adaptor,
The power supply function ability of adapter is passed into mobile terminal, mobile terminal by the collocation channel pin of Type-C interfaces 301
After receiving message, therefrom select to be adapted to the voltage of oneself, and send request data package to PD control chip 304, PD control
After chip 304 receives request data package, power supply adaptor is passed to by charging inlet, power supply adaptor adjusts output
Voltage starts to transmit charging current, charging current is passed through Type-C interfaces by PD control chip 304 to the value request of mobile terminal
301 power pins are transmitted to mobile terminal.
In another embodiment, the charging inlet 302 of interface arrangement 300 is connected to power supply, then fills interface
The Type-C interfaces 301 for putting 300 are connected to mobile terminal, and now, the PD control chip 304 of interface arrangement 300 is in power supply shape
State, charge arrangement information directly can be transmitted by the collocation channel pin of Type-C interfaces 301, it is then real by power pins
Existing charging current transmission.
In another embodiment, interface arrangement 300 includes multiple charging inlets 302, wherein Type-C interfaces 301
The first mobile terminal is connected to, one of charging inlet is connected to the second mobile terminal, and a charging inlet is connected to power supply,
Now, interface arrangement 300 carries out charging signals to the first mobile terminal and the second mobile terminal simultaneously by PD control chip 304
Transmission.
In another embodiment, the Type-C interfaces 301 of interface arrangement 300 are connected to the 3rd mobile terminal, fill
Electrical interface 302 is connected to the 4th mobile terminal, wherein the 3rd mobile terminal electricity is more than the 4th mobile terminal electricity, PD control core
Piece 304 detects the voltage of Type-C interfaces 301 and charging inlet 302, and the voltage of charging inlet 302 is less than Type-C interfaces 301
Voltage, therefore PD control chip 304 controls charging current to be transmitted from Type-C interfaces 301 to charging inlet 302, by the 3rd movement
Terminal charges to the 4th mobile terminal.
In another embodiment, the positive voltage data pin of data control chip 305 and Type-C interfaces 301
A6, B6, negative voltage data pin A7 and B7 and preset pin A8 connect with B8, in data control chip 305 and positive electricity
Right data is transmitted between pressure data pin A6, B6, between data control chip 305 and negative voltage data pin A7, B7
Left channel data is transmitted, Mike's data are transmitted between data control chip 305 and preset pin A8 and B8.
When interface arrangement 300 is connected to mobile terminal by Type-C interfaces 301, one is connected to by COBBAIF 303
Audio frequency apparatus, such as during earphone, Type-C interfaces 301 and COBBAIF 303 receive enable signal, trigger data control core
Piece 305 enters audio transmission pattern to mobile terminal application, using positive voltage data pin A6, B6 of Type-C interfaces 301,
Negative voltage data pin A7 and B7 and preset pin A8 and B8 carry out data transmission.Data control chip 305 receives
After the audio signal that Type-C interfaces 301 input, corresponding data are transmitted separately to the corresponding pin of COBBAIF 303.When
When user applies MIC to mobile terminal input audio signal, data control chip 305 is receiving the input of COBBAIF 303
Audio signal, by data such as the left and right acoustic channels of audio signal, pin corresponding to Type-C interfaces is transmitted separately to, so as to by audio
The audio signal transmission of equipment input is to mobile terminal.
Because the transmission of charging signals and the transmission of audio signal employ the different pins of Type-C interfaces, therefore, connect
Mouth device can support charge mode and audio transmission pattern simultaneously, meet user while being charged to mobile terminal, use
Earphone or other audio frequency apparatuses.
Specific embodiment of the present utility model also provides a kind of method for transmitting signals of interface arrangement.
Fig. 5 is refer to, the flow for the method for transmitting signals of the interface arrangement of the embodiment of the utility model one is shown
It is intended to.
The method for transmitting signals of interface arrangement comprises the following steps：
Step S501：An interface arrangement is provided, interface arrangement includes：Type-C interfaces, charging inlet and COBBAIF.
In an embodiment of the present utility model, interface arrangement structure is as shown in Figure 3.
Interface arrangement can include one or more charging inlets, and charging inlet can connect for Type-C interfaces, Type-A
One or more in mouth, Micro-A interfaces, Micro-B interfaces, Lightning interfaces or Type Mini B interface.
Interface arrangement can include one or more COBBAIFs, COBBAIF be 3.5mm interfaces, 6.3mm interfaces,
One or more in 2.5mm interfaces, Type-C interfaces or Lingtning interfaces.
Interface arrangement can be connected to mobile terminal, such as mobile phone, Macbook, tablet personal computer etc. by Type-C.
Type-C interfaces can be public mouth, or female seat；Charge power supply is connected to by charging inlet, such as power supply adaptor,
And mobile terminal with battery etc.；Audio frequency apparatus, such as earphone, microphone, sound equipment etc. are connected to by COBBAIF, used
In output and/or input audio data.
Step S502：When Type-C interfaces and charging inlet receive enable signal, in charging inlet and Type-C
Charging signals transmission is carried out between interface.
When Type-C interfaces are connected to mobile terminal, charging inlet is connected to after another mobile terminal or charge power supply,
Type-C interfaces receive enable signal with charging inlet, and charging signals are formed between Type-C interfaces and charging inlet
Transmission channel.According to the voltage status of Type-C interfaces and charging inlet, charging current transmission direction is adjusted.
Specifically, Type-C interfaces have power pins and collocation channel pin.In charging inlet and Type-C interfaces
Between carry out charging signals transmission further comprise：Charging signals are carried out between charging inlet and Type-C interfaces to transmit into one
Step includes：Charge arrangement information is transmitted between charging inlet and the collocation channel pin of Type-C interfaces；Charging inlet with
Charging current is transmitted between the power pins of Type-C interfaces.Charge arrangement information includes power supply power supply capacity information, Yi Jichong
The information such as piezoelectric voltage, electric current.
When Type-C interfaces and charging inlet receive enable signal, enter between charging inlet and Type-C interfaces
The step of row charging signals transmit further comprises：Detect charging inlet and Type-C interface voltages；It is if electric at charging inlet
Pressure is higher than Type-C interface voltages, and charging inlet exports charging signals to Type-C interfaces；If voltage is less than at charging inlet
Type-C interface voltages, Type-C interfaces export charging signals to charging inlet.
In an embodiment of the present utility model, Type-C interfaces are connected to mobile terminal, and now interface fills
Put as adapter, from acquisition for mobile terminal power supply and usb data.And work as from charging inlet and insert a charge power supply, Type-C
Interface and charging inlet receive enable signal, by the collocation channel pin of Type-C interfaces, according to USB PD agreements to
Mobile terminal sends power supply role exchange order, and state is adjusted into power supply status, using interface arrangement as power output end, and
Mobile terminal is changed into load end, and now the voltage of charging inlet is higher than Type-C interface terminal voltages, and interface arrangement is in power adaptation
A PD information transparent transmission is formed between device, the power supply function ability of adapter is passed by the collocation channel pin of Type-C interfaces
Mobile terminal is passed, after mobile terminal receives message, therefrom selects to be adapted to the voltage of oneself, and sends request data package,
Power supply adaptor is passed to by charging inlet, power supply adaptor is adjusted output voltage to the value request of mobile terminal, started
Charging current is transmitted, charging current is transmitted to mobile terminal by the power pins of Type-C interfaces.
In another embodiment, the charging inlet of interface arrangement is connected to power supply, then by interface arrangement
Type-C interfaces are connected to mobile terminal, match somebody with somebody at this point it is possible to directly transmit charging by the collocation channel pin of Type-C interfaces
Confidence ceases, and then realizes that charging current is transmitted by power pins.
In another embodiment, interface arrangement includes multiple charging inlets, and wherein Type-C interfaces are connected to
One mobile terminal, one of charging inlet are connected to the second mobile terminal, and a charging inlet is connected to power supply, now, connect
Mouth device can carry out the transmission of charging signals to the first mobile terminal and the second mobile terminal simultaneously.
In another embodiment, the Type-C interfaces of interface arrangement are connected to the 3rd mobile terminal, charging inlet
Be connected to the 4th mobile terminal, wherein the 3rd mobile terminal electricity is more than the 4th mobile terminal electricity, detection Type-C interfaces with
The voltage of charging inlet, if the voltage of charging inlet is less than Type-C interface voltages, charging current is controlled from Type-C interfaces
Transmit to charging inlet, charged from the 3rd mobile terminal to the 4th mobile terminal；If the voltage of charging inlet connects more than Type-C
Mouthful voltage, then charging current is controlled to be transmitted from charging inlet to Type-C interfaces, from the 4th mobile terminal to the 3rd mobile terminal
Charging.
Step S503：When Type-C interfaces and COBBAIF receive enable signal, connect in Type-C interfaces with audio
Audio signal is transmitted between mouthful.
Audio signal is transmitted between Type-C interfaces and COBBAIF to further comprise：Connect in COBBAIF and Type-C
Mouthful positive voltage data pin between transmit right data, COBBAIF and Type-C interfaces negative voltage data pin it
Between transmit left channel data, between COBBAIF and the preset pin of Type-C interfaces transmit Mike's data.
When interface arrangement is connected to mobile terminal by Type-C interfaces, an audio frequency apparatus is connected to by COBBAIF,
Such as during earphone, Type-C interfaces and COBBAIF receive enable signal, and triggering interface arrangement enters to mobile terminal application
Enter audio transmission pattern, using the positive voltage data pin of Type-C interfaces, negative voltage data pin and preset pin are carried out
Data transfer.After receiving the audio signal that mobile terminal inputs from Type-C interfaces, corresponding data are transmitted separately to sound
The corresponding pin of frequency interface.When user using MIC to mobile terminal input audio signal when, interface arrangement is connect receiving audio
After the audio signal of mouth input, the data such as the left and right acoustic channels of audio signal are transmitted separately to draw corresponding to Type-C interfaces
Pin, so as to by the audio signal transmission of audio frequency apparatus input to mobile terminal.
Because interface arrangement is during transmission charging signals and audio signal, Type-C interfaces have been respectively adopted not
Same pin, therefore, the method for transmitting signals of interface arrangement can support charge mode and audio transmission pattern simultaneously, meet user
While being charged to mobile terminal, earphone or other audio frequency apparatuses are used.And interface arrangement uses USB PD technologies, charge work(
Rate is big, safe, and speed is fast, and supports two-way charging.
It the above is only preferred embodiment of the present utility model, it is noted that for the ordinary skill people of the art
Member, on the premise of the utility model principle is not departed from, can also make some improvements and modifications, and these improvements and modifications also should
It is considered as the scope of protection of the utility model.
Claims (8)
- A kind of 1. interface arrangement, it is characterised in that including：Type-C interfaces；Charging inlet, for connecting power supply；COBBAIF, for connecting audio frequency apparatus；PD control chip, be connected with the charging inlet and the Type-C interfaces, for control the charging inlet with it is described Charging signals transmission between Type-C interfaces；Data control chip, it is connected with the COBBAIF and the Type-C interfaces, for controlling the COBBAIF and institute State the audio signal transmission between Type-C interfaces.
- 2. interface arrangement according to claim 1, it is characterised in that the power supply is power supply adaptor or has battery Mobile terminal.
- 3. interface arrangement according to claim 1, it is characterised in that the PD control chip be used for control charging signals from High voltage end transmits to low-voltage end.
- 4. interface arrangement according to claim 1, it is characterised in that the PD control chip and the Type-C interfaces Power pins connect, for transmitting charging current between the PD control chip and the power pins.
- 5. interface arrangement according to claim 1, it is characterised in that the PD control chip and the Type-C interfaces Collocation channel pin connects, for transmitting charge arrangement information between the PD control chip and the collocation channel pin.
- 6. interface arrangement according to claim 1, it is characterised in that the data control chip and the Type-C interfaces Positive voltage data pin, negative voltage data pin and preset pin connection, for the data control chip with it is described Right data is transmitted between positive voltage data pin, is passed between the data control chip and the negative voltage data pin Defeated left channel data, Mike's data are transmitted between the data control chip and the preset pin.
- 7. interface arrangement according to claim 1, it is characterised in that the charging inlet is Type-C interfaces, Type-A One or more in interface, Micro-A interfaces, Micro-B interfaces, Lightning interfaces or Type Mini B interface.
- 8. interface arrangement according to claim 1, it is characterised in that the COBBAIF is 3.5mm interfaces, 6.3mm connects One or more in mouth, 2.5mm interfaces, Type-C interfaces or Lingtning interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720645889.8U CN207116839U (en) | 2017-06-06 | 2017-06-06 | Interface arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720645889.8U CN207116839U (en) | 2017-06-06 | 2017-06-06 | Interface arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207116839U true CN207116839U (en) | 2018-03-16 |
Family
ID=61593924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720645889.8U Active CN207116839U (en) | 2017-06-06 | 2017-06-06 | Interface arrangement |
Country Status (1)
| Country | Link |
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| CN (1) | CN207116839U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107171146A (en) * | 2017-06-06 | 2017-09-15 | 深圳市泰衡诺科技有限公司 | Interface arrangement and its method for transmitting signals |
| CN113300181A (en) * | 2021-04-13 | 2021-08-24 | 深圳市倍思科技有限公司 | Photoelectric dual-mode audio and video data charging line and control method thereof |
| CN113300172A (en) * | 2021-04-13 | 2021-08-24 | 深圳市倍思科技有限公司 | Multi-audio-video output interface charger and control method thereof |
-
2017
- 2017-06-06 CN CN201720645889.8U patent/CN207116839U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107171146A (en) * | 2017-06-06 | 2017-09-15 | 深圳市泰衡诺科技有限公司 | Interface arrangement and its method for transmitting signals |
| CN113300181A (en) * | 2021-04-13 | 2021-08-24 | 深圳市倍思科技有限公司 | Photoelectric dual-mode audio and video data charging line and control method thereof |
| CN113300172A (en) * | 2021-04-13 | 2021-08-24 | 深圳市倍思科技有限公司 | Multi-audio-video output interface charger and control method thereof |
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