CN204706733U - USB connecting line - Google Patents
USB connecting line Download PDFInfo
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- CN204706733U CN204706733U CN201520417752.8U CN201520417752U CN204706733U CN 204706733 U CN204706733 U CN 204706733U CN 201520417752 U CN201520417752 U CN 201520417752U CN 204706733 U CN204706733 U CN 204706733U
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Abstract
The disclosure is directed to a kind of USB connecting line, wherein, USB connecting line comprises: line body; Be positioned at the first USB interface and the secondary USB interface of line body one end; Be positioned at the 3rd USB interface of the line body other end; Wherein, the version of the first USB interface and secondary USB interface is all lower than the version of the 3rd USB interface, and the first USB interface or secondary USB interface, for the idle data line of multiplexing 3rd USB interface.Above-mentioned USB connecting line, by the idle data line of the first USB interface or multiplexing 3rd USB interface of secondary USB interface, improves the service efficiency of the 3rd USB interface.
Description
Technical field
The disclosure relates to communication technical field, particularly relates to a kind of USB connecting line.
Background technology
USB (Universal Serial Bus, be called for short USB) be a kind of standard that the non-profit organization be made up of companies such as Microsoft, Intel, IBMs (IBM) in 1994 formulates, its initial object is to help external equipment to carry out being connected and exchanges data with computer better.Through the development of more than 20 years, USB standard experienced by from 1.x, 2.0, the development of more than 3.0 to 3.1 versions, message transmission rate achieves significant progress.Wherein, C type USB (USBType-C is called for short USB-C) is the specification of a kind of novel USB cable and connector, it defines a whole set of the brand-new USB physical specification comprising connector, port, container and cable etc.
The bright spot of USB-C interface is more slim design, faster transmission speed (the highest 10Gbps) and more intrepid electric power transfer (the highest 100W), its maximum feature supports the two-sided insertion of USB interface, formally solve the difficult problem of " USB inserts inaccurate forever ", positive and negative is at will inserted, and this greatly improves the ease for use of USB interface.Because its interface does not have directivity, and interface size is less, is only 8.3mm*2.5mm, so increasing mobile phone brings into use USB-C interface as its USB interface.
USB-C is a part for USB 3.1 interface, and compared with USB 2.0, USB-C interface contains four lines SSTX+, SSTX-, SSRX+, SSRX-newly-increased in USB 3.0.But many mobile phones are not owing to using USB 3.0, so these pins on this interface are just idle, this must cause the waste of resource, reduces the service efficiency of interface.
Utility model content
Disclosure embodiment provides a kind of USB connecting line, in order to solve the low problem of current interface service efficiency.
According to the first aspect of disclosure embodiment, a kind of USB connecting line is provided, comprises:
Line body;
Be positioned at the first USB interface and the secondary USB interface of described line body one end;
Be positioned at the 3rd USB interface of the described line body other end;
Wherein, the version of described first USB interface and secondary USB interface is all lower than the version of described 3rd USB interface, and described first USB interface or secondary USB interface, for the idle data line of multiplexing described 3rd USB interface.
In one embodiment, the second by-pass body that described line body comprises the main line body be connected with described 3rd USB interface, the first by-pass body be connected with described first USB interface and is connected with described secondary USB interface, wherein, described main line body is connected with described second by-pass body with described first by-pass body respectively.
In one embodiment, described first USB interface and described secondary USB interface include USB2.0 interface, and described 3rd USB interface comprises C type USB interface.
In one embodiment, D+, D-, SSTX+, SSTX-, SSRX+, SSRX-data wire be connected with described 3rd USB interface is provided with in described main line body;
What be provided with in SSTX+, SSTX-, SSRX+ and the SSRX-be connected with described first USB interface in described first by-pass body is part or all of, described SSTX+, SSTX-, SSRX+ and SSRX-are the idle data line of the 3rd USB interface, are provided with D+ and the D-data wire be connected with described secondary USB interface in described second by-pass body.
In one embodiment, be provided with signal conversion chip in described first USB interface, described signal conversion chip is used for usb signal to be converted to universal asynchronous receiving-transmitting transmitter UART signal or joint test working group JTAG signal.
In one embodiment, D+, D-, SSTX+, SSTX-, SSRX+, SSRX-data wire be connected with described 3rd USB interface is provided with in described main line body;
D+ and the D-data wire be connected with described first USB interface is provided with in first by-pass body, what be provided with in SSTX+, SSTX-, SSRX+ and the SSRX-be connected with described secondary USB interface in the second by-pass body is part or all of, and described SSTX+, SSTX-, SSRX+ and SSRX-are the idle data line of the 3rd USB interface.
In one embodiment, be provided with signal conversion chip in described secondary USB interface, described signal conversion chip is used for usb signal to be converted to universal asynchronous receiving-transmitting transmitter UART signal or joint test working group JTAG signal.
In one embodiment, described 3rd USB interface is connected with mobile terminal, and described first USB interface and/or described secondary USB interface are connected with main frame.
Should be understood that, it is only exemplary and explanatory that above general description and details hereinafter describe, and can not limit the disclosure.
Accompanying drawing explanation
Accompanying drawing to be herein merged in specification and to form the part of this specification, shows and meets embodiment of the present utility model, and is used from specification one and explains principle of the present utility model.
Fig. 1 is the block diagram of a kind of USB connecting line according to an exemplary embodiment.
Fig. 2 is the block diagram of the another kind of USB connecting line according to an exemplary embodiment.
Fig. 3 is the block diagram of another the USB connecting line according to an exemplary embodiment.
Fig. 4 is the block diagram of another the USB connecting line according to an exemplary embodiment.
Fig. 5 is the flow chart of a kind of method of operation based on USB connecting line according to an exemplary embodiment.
Fig. 6 a is the block diagram of a kind of mobile terminal according to an exemplary embodiment.
Fig. 6 b is the block diagram of the another kind of mobile terminal according to an exemplary embodiment.
Fig. 7 is a kind of block diagram being applicable to mobile terminal according to an exemplary embodiment.
Embodiment
Here will be described exemplary embodiment in detail, its sample table shows in the accompanying drawings.When description below relates to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawing represents same or analogous key element.Execution mode described in following exemplary embodiment does not represent all execution modes consistent with the utility model.On the contrary, they only with as in appended claims describe in detail, the example of apparatus and method that aspects more of the present utility model are consistent.
Fig. 1 is the block diagram of a kind of USB connecting line according to an exemplary embodiment, and as shown in Figure 1, USB connecting line comprises: line body 11, is positioned at the first usb 12 and the secondary USB interface 13 of line body 11 one end; Be positioned at the 3rd usb 14 of line body 11 other end; Wherein, the version of the first USB interface and secondary USB interface is all lower than the version of the 3rd USB interface, and the first USB interface or secondary USB interface, for the idle data line of multiplexing 3rd USB interface.
As shown in Figure 2, the second by-pass body 113 that above-mentioned line body 11 can comprise the main line body 111 be connected with the 3rd usb 14, the first by-pass body 112 be connected with the first usb 12 and be connected with secondary USB interface 13, wherein, main line body 111 is connected with the second by-pass body 113 with the first by-pass body 112 respectively.
Wherein, the first USB interface and secondary USB interface can be different interfaces, also can be identical interface, such as can be USB2.0 interface, the version of the 3rd USB interface is higher than the version of the first USB interface and secondary USB interface, such as, can be C type USB interface.It should be noted that, above are only and illustrate, concrete interface type is not limited.
Be USB2.0 interface with the first USB interface and secondary USB interface below, the 3rd USB interface is C type USB interface is that example is described in detail the structure of USB line and purposes.
Owing to being provided with D+, D-, SSTX+, SSTX-, SSRX+, SSRX-data wire be connected with C type USB interface in main line body, therefore when C type USB interface only uses as USB 2.0 interface, only use D+ and the D-data wire of USB 2.0, like this, SSTX+, SSTX-, SSRX+, SSRX-data wire is all idle, can be used for transmitting maximum four single data signals.In this embodiment, if the first USB interface employs D+ and D-data wire, then secondary USB interface can part or all of in multiplexing SSTX+, SSTX-, SSRX+, SSRX-, namely be also provided with D+ and the D-data wire be connected with described first USB interface in the first by-pass body, what be provided with in SSTX+, SSTX-, SSRX+ and the SSRX-be connected with described secondary USB interface in the second by-pass body is part or all of; Similarly, if secondary USB interface employs D+ and D-data wire, then the first USB interface can part or all of in multiplexing SSTX+, SSTX-, SSRX+, SSRX-, namely what be also provided with in the first by-pass body in SSTX+, SSTX-, SSRX+ and the SSRX-be connected with the first USB interface is part or all of, is provided with D+ and the D-data wire be connected with secondary USB interface in the second by-pass body.
Wherein, the main line body 111 shown in Fig. 2 meets the specification of USB 3.0, and the first by-pass body 112 and the second by-pass body 113 all meet the specification of USB 2.0.
In this embodiment, when part or all of in multiplexing SSTX+, SSTX-, SSRX+, the SSRX-of 3rd usb 14 of the first usb 12, signal conversion chip 121 can be provided with in the first usb 12, as shown in Figure 3; Similarly, when part or all of in multiplexing SSTX+, SSTX-, SSRX+, the SSRX-of 3rd usb 14 of secondary USB interface 13, signal conversion chip 131 can be provided with in secondary USB interface 13, as shown in Figure 4.
Wherein, when using multiplexing for two in four idle data lines as UART interface time, need to arrange USB and universal asynchronous receiving-transmitting transmitter (Universal AsynchronousReceiver/Transmitter in corresponding USB interface, UART) conversion chip (such as PL2303) changed and peripheral circuit, to convert corresponding UART signal to by usb signal.When using four idle data lines as joint test working group (Joint Test Action Group, JTAG) during debugging interface, need to arrange micro-control unit (MCU) in corresponding USB interface, and programme wherein, usb signal to be converted to corresponding JTAG signal.
In addition, first, second, and third USB interface is male interface, and male interface is relative with female interface, and male interface refers generally to the interface that can insert other equipment.Wherein, the first and second USB interface are category-A male interface, and can be connected with main frame such as PC, and the 3rd USB interface can be connected with mobile terminals such as mobile phones.
In this embodiment, user, after the 3rd USB interface is connected mobile phone, if only the first USB interface in Fig. 4 is connected on PC, can realize data manipulation and the charging of normal USB 2.0; If only the secondary USB interface in Fig. 4 is connected on PC, cannot charge to mobile phone, can only based on multiplexing data line transfer data, such as, the test data of chip for cell phone, the daily record data etc. of mobile phone internal program; If the first USB interface and secondary USB interface are all connected on PC, both can realize normal USB2.0 and operate, charge, also can based on multiplexing data line transfer data, these data include but not limited to test data and daily record data.
Above-mentioned USB connecting line, by the idle data line of the first USB interface or multiplexing 3rd USB interface of secondary USB interface, improve the service efficiency of the 3rd USB interface, in addition, not needing the mobile terminal for being connected with the 3rd USB interface to increase extra interface, reducing mobile terminal cost.
Fig. 5 is the flow chart of a kind of method of operation based on USB connecting line according to an exemplary embodiment, wherein, the structure of USB connecting line can see Fig. 1, do not repeat herein, in this embodiment, assuming that the multiplexing idle data line of the 3rd USB interface of secondary USB interface, as shown in Figure 5, the method comprises:
In step S501, judge that whether mobile terminal is successfully connected with the 3rd USB interface and whether main frame is successfully connected with secondary USB interface.
Wherein, mobile terminal can be mobile phone, and main frame can be PC.
In this embodiment, the mobile terminal such as mobile phone can judge oneself to pass through the first USB interface of USB connecting line or secondary USB interface is connected with PC.
In step S502, when judging that mobile terminal is successfully connected with the 3rd USB interface and main frame is successfully connected with secondary USB interface, based on multiplexing data line transfer data, these data comprise test data.
If the mobile terminals such as mobile phone are judged to be connected with PC by secondary USB interface, then can based on multiplexing data line transfer data, these data comprise test data.
In this embodiment, signal conversion chip can be provided with in secondary USB interface, as shown in Figure 4.Because multiplexing data wire can as UART interface, therefore the data of transmission can be test data, also can be the various data such as daily record data, in addition, multiplexing data wire also can as JTAG debugging interface, therefore can transmitting test data, such as mobile phone etc. is arranged to the test data of interior chip.
In addition, after judging that mobile terminal is successfully connected with the 3rd USB interface and main frame is connected with secondary USB interface is unsuccessful, or after multiplexing data line transfer data, the method can also comprise step S503-S504.
In step S503, judge that whether mobile terminal is successfully connected with the 3rd USB interface and whether main frame is successfully connected with the first USB interface.
In step S504, when judging that mobile terminal is successfully connected with the 3rd USB interface and main frame is successfully connected with the first USB interface, by main frame mobile terminal charged and/or and main frame carry out transfer of data.
In this embodiment, the first USB interface is equivalent to traditional USB2.0 interface.
The above-mentioned method of operation based on USB connecting line, the USB connecting line that can provide based on the disclosure operates, and not needing the mobile terminal for being connected with this connecting line to increase extra interface, reducing mobile terminal cost.
Fig. 6 a is the block diagram of a kind of mobile terminal according to an exemplary embodiment, USB connecting line comprises line body, be positioned at first USB interface of line body one end and secondary USB interface and be positioned at the 3rd USB interface of the line body other end, wherein, the version of the first USB interface and secondary USB interface is all lower than the version of the 3rd USB interface; Secondary USB interface is used for the idle data line of multiplexing 3rd USB interface, and as shown in Figure 6 a, this mobile terminal comprises the first judge module 61 and transport module 62, wherein:
First judge module 61 is in order to judge that whether mobile terminal is successfully connected with the 3rd USB interface and whether main frame is successfully connected with secondary USB interface; Transport module 62 in order to judge mobile terminal when the first judge module 61 and to be successfully connected with the 3rd USB interface and main frame is successfully connected with secondary USB interface time, based on multiplexing data line transfer data, data comprise test data.
In one embodiment, above-mentioned data also can comprise daily record data.
Fig. 6 b is the block diagram of a kind of mobile terminal according to an exemplary embodiment, and as shown in Figure 6 b, on the basis of above-mentioned Fig. 6 a illustrated embodiment, this device also can comprise:
Second judge module 63, in order to judge that whether mobile terminal is successfully connected with the 3rd USB interface and whether main frame is successfully connected with the first USB interface;
Operational module 64, in order to judge when the second judge module 63 that mobile terminal is successfully connected with the 3rd USB interface and main frame is successfully connected with the first USB interface time, by main frame mobile terminal charged and/or and main frame carry out transfer of data.
About the device in above-described embodiment, wherein the concrete mode of modules, submodule executable operations has been described in detail in about the embodiment of the method, will not elaborate explanation herein.
Above-mentioned mobile terminal, the USB connecting line that can provide based on the disclosure operates, and does not need, for this device increases extra interface, to reduce cost.
Fig. 7 is the block diagram that a kind of according to an exemplary embodiment is applicable to the operating mobile terminal based on USB connecting line.Such as, mobile terminal 700 can be mobile phone, computer, digital broadcast terminal, messaging devices, game console, flat-panel devices, Medical Devices, body-building equipment, personal digital assistant, aircraft etc.
With reference to Fig. 7, mobile terminal 700 can comprise following one or more assembly: processing components 702, memory 704, power supply module 706, multimedia groupware 708, audio-frequency assembly 710, the interface 712 of I/O (I/O), sensor cluster 714, and communications component 717.
Processing components 702 controls the integrated operation of mobile terminal 700 usually, and such as with display, call, data communication, camera operation and record operate the operation be associated.Treatment element 702 can comprise one or more processor 720 to perform instruction, to complete all or part of step of above-mentioned method.In addition, processing components 702 can comprise one or more module, and what be convenient between processing components 702 and other assemblies is mutual.Such as, processing unit 702 can comprise multi-media module, mutual with what facilitate between multimedia groupware 708 and processing components 702.
Memory 704 is in order to store various types of data to be supported in the operation of equipment 700.The example of these data comprises for any application program of operation on mobile terminal 700 or the instruction of method, contact data, telephone book data, message, picture, video etc.Memory 704 can be realized by the volatibility of any type or non-volatile memory device or their combination, as static RAM (SRAM), Electrically Erasable Read Only Memory (EEPROM), Erasable Programmable Read Only Memory EPROM (EPROM), programmable read only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, disk or CD.
The various assemblies that electric power assembly 706 is mobile terminal 700 provide electric power.Electric power assembly 706 can comprise power-supply management system, one or more power supply, and other and the assembly generating, manage and distribute electric power for mobile terminal 700 and be associated.
Multimedia groupware 708 is included in the screen providing an output interface between described mobile terminal 700 and user.In certain embodiments, screen can comprise liquid crystal display (LCD) and touch panel (TP).If screen comprises touch panel, screen may be implemented as touch-screen, to receive the input signal from user.Touch panel comprises one or more touch sensor with the gesture on sensing touch, slip and touch panel.Described touch sensor can the border of not only sensing touch or sliding action, but also detects the duration relevant to described touch or slide and pressure.In certain embodiments, multimedia groupware 708 comprises a front-facing camera and/or post-positioned pick-up head.When equipment 700 is in operator scheme, during as screening-mode or video mode, front-facing camera and/or post-positioned pick-up head can receive outside multi-medium data.Each front-facing camera and post-positioned pick-up head can be fixing optical lens systems or have focal length and optical zoom ability.
Audio-frequency assembly 710 is in order to export and/or input audio signal.Such as, audio-frequency assembly 710 comprises a microphone (MIC), and when mobile terminal 700 is in operator scheme, during as call model, logging mode and speech recognition mode, microphone is in order to receive external audio signal.The audio signal received can be stored in memory 704 further or be sent via communications component 716.In certain embodiments, audio-frequency assembly 710 also comprises a loud speaker, for output audio signal.
I/O interface 712 is for providing interface between processing components 702 and peripheral interface module, and above-mentioned peripheral interface module can be keyboard, some striking wheel, button etc.These buttons can include but not limited to: home button, volume button, start button and locking press button.
Sensor cluster 714 comprises one or more transducer, for providing the state estimation of various aspects for mobile terminal 700.Such as, sensor cluster 714 can judge the opening/closing state of equipment 700, the relative positioning of assembly, such as described assembly is display and the keypad of mobile terminal 700, the position that sensor cluster 714 can also detect mobile terminal 700 or mobile terminal 700 1 assemblies changes, the presence or absence that user contacts with mobile terminal 700, the variations in temperature of mobile terminal 700 orientation or acceleration/deceleration and mobile terminal 700.Sensor cluster 714 can comprise proximity transducer, be configured to without any physical contact time detect near the existence of object.Sensor cluster 714 can also comprise optical sensor, as CMOS or ccd image sensor, for using in imaging applications.In certain embodiments, this sensor cluster 714 can also comprise acceleration transducer, gyro sensor, Magnetic Sensor, pressure sensor or temperature sensor.
Communications component 716 is with so that the communication of wired or wireless mode between mobile terminal 700 and other equipment.Mobile terminal 700 can access the wireless network based on communication standard, as WiFi, 2G or 3G, or their combination.In one exemplary embodiment, communication component 716 receives from the broadcast singal of external broadcasting management system or broadcast related information via broadcast channel.In one exemplary embodiment, described communication component 716 also comprises near-field communication (NFC) module, to promote junction service.Such as, can based on radio-frequency (RF) identification (RFID) technology in NFC module, Infrared Data Association (IrDA) technology, ultra broadband (UWB) technology, bluetooth (BT) technology and other technologies realize.
In the exemplary embodiment, mobile terminal 700 can be realized, for performing said method by one or more application specific integrated circuit (ASIC), digital signal processor (DSP), digital signal processing appts (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic components.
In the exemplary embodiment, additionally provide a kind of non-transitory computer-readable recording medium comprising instruction, such as, comprise the memory 704 of instruction, above-mentioned instruction can perform said method by the processor 720 of mobile terminal 700.Such as, described non-transitory computer-readable recording medium can be ROM, random access memory (RAM), CD-ROM, tape, floppy disk and optical data storage devices etc.
Those skilled in the art, at consideration specification and after putting into practice disclosed herein disclosing, will easily expect other embodiment of the present disclosure.The application is intended to contain any modification of the present disclosure, purposes or adaptations, and these modification, purposes or adaptations are followed general principle of the present disclosure and comprised the undocumented common practise in the art of the disclosure or conventional techniques means.Specification and embodiment are only regarded as exemplary, and true scope of the present disclosure and spirit are pointed out by claim below.
Should be understood that, the disclosure is not limited to precision architecture described above and illustrated in the accompanying drawings, and can carry out various amendment and change not departing from its scope.The scope of the present disclosure is only limited by appended claim.
Claims (8)
1. a USB connecting line, is characterized in that, comprising:
Line body;
Be positioned at the first USB interface and the secondary USB interface of described line body one end;
Be positioned at the 3rd USB interface of the described line body other end;
Wherein, the version of described first USB interface and secondary USB interface is all lower than the version of described 3rd USB interface, and described first USB interface or secondary USB interface, for the idle data line of multiplexing described 3rd USB interface.
2. USB connecting line according to claim 1, it is characterized in that, the second by-pass body that described line body comprises the main line body be connected with described 3rd USB interface, the first by-pass body be connected with described first USB interface and is connected with described secondary USB interface, wherein, described main line body is connected with described second by-pass body with described first by-pass body respectively.
3. USB connecting line according to claim 2, is characterized in that, described first USB interface and described secondary USB interface include USB2.0 interface, and described 3rd USB interface comprises C type USB interface.
4. USB connecting line according to claim 3, is characterized in that, is provided with D+, D-, SSTX+, SSTX-, SSRX+, SSRX-data wire be connected with described 3rd USB interface in described main line body;
What be provided with in SSTX+, SSTX-, SSRX+ and the SSRX-be connected with described first USB interface in described first by-pass body is part or all of, described SSTX+, SSTX-, SSRX+ and SSRX-are the idle data line of the 3rd USB interface, are provided with D+ and the D-data wire be connected with described secondary USB interface in described second by-pass body.
5. USB connecting line according to claim 4, it is characterized in that, be provided with signal conversion chip in described first USB interface, described signal conversion chip is used for usb signal to be converted to universal asynchronous receiving-transmitting transmitter UART signal or joint test working group JTAG signal.
6. USB connecting line according to claim 3, is characterized in that, is provided with D+, D-, SSTX+, SSTX-, SSRX+, SSRX-data wire be connected with described 3rd USB interface in described main line body;
D+ and the D-data wire be connected with described first USB interface is provided with in first by-pass body, what be provided with in SSTX+, SSTX-, SSRX+ and the SSRX-be connected with described secondary USB interface in the second by-pass body is part or all of, and described SSTX+, SSTX-, SSRX+ and SSRX-are the idle data line of the 3rd USB interface.
7. USB connecting line according to claim 6, it is characterized in that, be provided with signal conversion chip in described secondary USB interface, described signal conversion chip is used for usb signal to be converted to universal asynchronous receiving-transmitting transmitter UART signal or joint test working group JTAG signal.
8. the USB connecting line according to any one of claim 1-6, is characterized in that, described 3rd USB interface is connected with mobile terminal, and described first USB interface and/or described secondary USB interface are connected with main frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520417752.8U CN204706733U (en) | 2015-06-16 | 2015-06-16 | USB connecting line |
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| CN201520417752.8U CN204706733U (en) | 2015-06-16 | 2015-06-16 | USB connecting line |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515123A (en) * | 2016-02-01 | 2016-04-20 | 珠海格力电器股份有限公司 | Rapid charging device and system for mobile terminal |
| CN105552670A (en) * | 2016-01-28 | 2016-05-04 | 努比亚技术有限公司 | Conversion method for USB socket, USB socket and USB data line |
| CN106329256A (en) * | 2015-06-16 | 2017-01-11 | 小米科技有限责任公司 | USB (Universal Series Bus) connection line, operation method based on USB connection line and mobile terminal |
-
2015
- 2015-06-16 CN CN201520417752.8U patent/CN204706733U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329256A (en) * | 2015-06-16 | 2017-01-11 | 小米科技有限责任公司 | USB (Universal Series Bus) connection line, operation method based on USB connection line and mobile terminal |
| CN106329256B (en) * | 2015-06-16 | 2020-10-30 | 北京小米移动软件有限公司 | USB connecting line, operation method based on USB connecting line and mobile terminal |
| CN105552670A (en) * | 2016-01-28 | 2016-05-04 | 努比亚技术有限公司 | Conversion method for USB socket, USB socket and USB data line |
| CN105552670B (en) * | 2016-01-28 | 2020-02-07 | 努比亚技术有限公司 | USB socket conversion method, USB socket and USB data line |
| CN105515123A (en) * | 2016-02-01 | 2016-04-20 | 珠海格力电器股份有限公司 | Rapid charging device and system for mobile terminal |
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