CN103268143A - Method for realizing electroless storage of USB (universal serial bus) mobile equipment - Google Patents
Method for realizing electroless storage of USB (universal serial bus) mobile equipment Download PDFInfo
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Abstract
The invention provides a method for realizing electroless storage of USB (universal serial bus) mobile equipment. The USB mobile equipment is provided with a USB insertion detection signal generating circuit, a storage module, a power storage module and a USB switching switch module. When the USB mobile equipment is inserted into a PC (personal computer), a USB insertion detection signal is generated by the USB insertion detection signal generating circuit and then fed back to the power storage module and the USB switching switch module, the power storage module is enabled to supply power to the storage module and the USB switching switch module, communication between the storage module and a local CPU (central processing unit) of the USB mobile equipment is switched to communication between the storage module and the PC by the USB switching switch module, and thereby electroless storage of the USB mobile equipment is realized. By the method for realizing electroless storage of the USB mobile equipment, the existing USB mobile equipment carrying with batteries can still normally communicate with the PC to store data under the conditions of no batteries or insufficient battery power supply and no external power supply equipment.
Description
Technical field
The present invention relates to a kind of USB mobile device and realize not having the method for electricity storage.
Background technology
Occur increasing handheld mobile device at present on the market, they generally can pass through USB mouth and PC(computer all from charged pool) communicate by letter, carry out copy, storage, the backup of data! When but PC communicates with mobile device, it is the insertion testing mechanism by USB device, the D+ of USB mouth or the last pull-down state of D-are judged, confirm whether to have USB device to insert, just can communicate after correctly recognizing USB device, when this just required mobile device to communicate, system will open, and battery must have enough normal mobile device systems of opening of electricity or PCUSB confession electricity.
There is following shortcoming in this technology:
1, when the battery of (big electric current) mobile device does not have electricity or battery to damage fully, communicate by letter with PC by the USB mouth again, because the USB mouth output current of PC all is limited in 500MA or 900MA, generally can't satisfy the Overall Power Consumption of (big electric current) mobile device, just can't normally recognize (big electric current) mobile device, can't communicate, existing wireless portable hard drive, PAD on the market etc. for example, when removing battery, and when not connecing the externally fed power supply, insert PC and just can't normally recognize equipment.
If 2 users just hope the operations such as copy of carrying out data under off-mode, behind USB mouth access PC, system needs unlatching fully, and (a kind of is that acquiescence is inserted just start of PC, a kind of needs are manually started shooting and just can be stored), if this moment, some mobile device system was complicated, as the mobile device of Android system, start needs for a long time, and PC recognizes mobile device just to be needed to wait for for a long time! After copy finished, operation such as also will manually shut down increased unnecessary trouble.
Summary of the invention
The technical problem to be solved in the present invention, be to provide a kind of USB mobile device to realize not having the method for electricity storage, can allow the USB mobile device of existing charged pool own, not enough and do not connect under the externally fed equipment situation in not charged pool or powered battery, still can normally communicate with PC, carry out the storage of data.
The present invention is achieved in that the method for a kind of USB mobile device realization nothing electricity storage, described USB mobile device has USB and inserts detection signal generation circuit, memory module, storage power module and USB change-over switch module, when the USB mobile device inserts PC, USB inserts detection signal generation circuit and produces USB insertion detection signal, this USB inserts detection signal and is fed back to described storage power module and USB change-over switch module, making described storage power module is described memory module and USB change-over switch module for power supply, described USB change-over switch module switches to communicating by letter of memory module and described PC with communicating by letter between memory module and USB mobile device self CPU, thereby realizes the nothing electricity storage of USB mobile device.
Further, when the USB of PC shell ground is when linking together with mainboard ground, the production method that described USB inserts detection signal is: floating ground is made on the shell of the USB mouth of USB mobile device ground, and on move high level to, when the USB mobile device is inserted into PC, ground loop by the PC end becomes the state of dragging down to the USB mouth shell ground of USB mobile device by the state of drawing high, and this state variation is exactly that USB inserts detection signal; Perhaps when the charge port of USB mobile device and usb data mouth are two interfaces that independently separate, the production method that described USB inserts detection signal is: utilize USB mouth+5V_USB power supply to identify, + 5V_USB acquiescence drags down, when the USB mobile device inserts PC, + 5V_USB is drawn high, and this+5V_USB becomes the state variation of drawing high and is USB and inserts detection signal by dragging down.Wherein, described USB inserts detection signal end USB_SEL and also connects Pin11～16 by a current-limiting resistance R45, and this Pin11～16 connect the ESD pipe D3 that electrostatic prevention is used by one, and the two ends of D3 also connect the capacitor C 191 of shake when eliminating the plug USB device.
Further, when described USB mobile device adopts USB seat JP4, the production method that described USB inserts detection signal is specifically: shell ground Pin11～16 of JP4 are in floating ground state, and with moving high level end IPSOUT on the R34 resistance to, make USB insert detection signal end USB_SEL and be in high level, when the USB mobile device inserts PC, by PC termination ground circuit, mainboard ground Pin5～8 short circuits are followed in shell ground Pin11～16 of JP4, USB is inserted detection signal end USB_SEL to drag down, thereby the level state that makes USB insert the detection signal end changes, and this state variation is exactly that USB inserts detection signal.
Further, the independently-powered IC of the memory module that described storage power module is described USB mobile device, and enable pin is arranged, and this enable pin inserts under the detection signal control at USB and opens described storage power module, is described memory module power supply; And the voltage VCC that described storage power module produces after can also opening with system controls unlatching, guarantees that USB mobile device normal boot-strap uses.
Further, described storage power module can be specifically: adopt independently-powered ICU13 to give the hard disk part system power supply of USB mobile device, U13 is output as+5V, input is provided by IPSOUT, the enable pin EN of U13 connects the D utmost point of PMOS pipe Q3 and Q8 respectively by schottky diode D2, the S utmost point of Q3 and Q8 is connected IPSOUT, and the G utmost point of Q3 connects USB and inserts detection signal end USB_SEL and ground connection, and the G utmost point of Q8 connects start voltage V3.3 by triode Q7; The method of supplying power to of described storage power module comprises following two kinds of situations: 1) insert PC when the USB mobile device system under off-mode, USB inserts detection signal end USB_SEL and is pulled down to ground, the Q3 conducting, by D2 the enable pin EN of U13 is drawn high and enable, the hard disk supply voltage+5V_VCC of U13 output USB mobile device; 2) when the USB mobile device system is started shooting, no matter whether insert PC, all can produce V_3.3 voltage, make the Q7 conducting, open Q8, draw high enable pin EN by D2, U13 output hard disk supply voltage+5V_VCC.Wherein, the G utmost point of described Q3 is to be connected USB insertion detection signal end USB_SEL by a RC filtering circuit of being made up of R36 and C64.
Further, described USB change-over switch module is that independently USB switches IC, and this independently USB switch IC and can insert under the detection signal control at described USB and work.
Further, described USB change-over switch module can be specifically: adopting independently, USB switches IC U15, the Pin1 of U15 is high enable pin, this Pin1 connects the C utmost point of triode Q1, the B utmost point of Q1 connects USB and inserts detection signal end USB_SEL, the E utmost point is by resistance R 125 connection+3.3V_SATA, the Pin2 of U15 and Pin8 be connected system CPU respective signal end 7221_DP respectively, 7221_DN, Pin4 and Pin6 are connected USB respectively changes SATA chip signal end SATA_DP and SATA_DN, and Pin3 and Pin7 are connected signal end UDP and the UDN on the USB seat respectively; The changing method of described USB change-over switch module comprises following two kinds of situations: 1) under system's normal boot-strap state, and do not insert PC, this moment, the USB_SEL acquiescence was drawn high IPSOUT, IPSOUT minimum voltage＞3.3V, not conducting of Q1, U15 does not work, and default signal SATA_DP meets 7221_DP, SATA_DN meets 7221_DN, and CPU can normally be communicated with hard disk; 2) insert PC under the system closedown state, this moment, USB_SEL pulled down to ground, the Q1 conducting, and U15 work, signal SATA_DP switches to UDP and connects, and SATA_DN meets UDN, and this moment, system began proper communication with PC, also can work as wireless hard disk even without battery and use.
Further, described USB inserts testing circuit and also inserts the CPU end that the detection feedback circuit feeds back to USB insertion detection signal the USB mobile device by a USB, when the system of USB mobile device inserts PC under the start situation, the system of USB mobile device also can provide corresponding prompting, realizes that the USB mobile device is with the proper communication of PC.
Further, described USB insert detect feedback circuit can be specifically: the USB_SEL signal is connected the B utmost point of PNP triode Q2, and the E utmost point of Q2 connects V3.3, and the C utmost point connects GPIO1 and the ground connection of CPU; Described USB inserts the feedback method that detects feedback circuit: when the USB mobile device inserts PC under the system boot state, system can correspondingly provide relevant prompting.
The present invention has following advantage:
1, can allow the mobile device of existing charged pool own or equipment that work the time need connect the externally fed device in not charged pool or powered battery deficiency, and not connect under the externally fed equipment situation, still can normally communicate with PC, carry out the storage of data;
2, in the time only need using data storage function, do not need to open total system, the action of shutdown again after having stored is also saved in power saving.
Description of drawings
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the structural representation that the USB of one embodiment of the invention inserts detection signal generation circuit.
Fig. 2 is the structural representation of the storage power module of one embodiment of the invention.
Fig. 3 is the structural representation of the USB change-over switch module of one embodiment of the invention.
Fig. 4 is that the USB of one embodiment of the invention inserts the structural representation that detects feedback circuit.
Embodiment
USB mobile device of the present invention realizes not having the method for electricity storage, described USB mobile device has USB and inserts detection signal generation circuit, memory module, storage power module and USB change-over switch module, when the USB mobile device inserts PC, USB inserts detection signal generation circuit and produces USB insertion detection signal, this USB inserts detection signal and is fed back to described storage power module and USB change-over switch module, making described storage power module is described memory module and USB change-over switch module for power supply, described USB change-over switch module switches to communicating by letter of memory module and described PC with communicating by letter between memory module and USB mobile device self CPU, thereby realizes the nothing electricity storage of USB mobile device.
The production method that described USB inserts detection signal can adopt following two kinds:
1) utilize the shell ground of the USB interface of USB mobile device to identify
The USB shell ground of prior USB main equipment (being PC) links together with mainboard ground, when the USB of PC shell ground is when linking together with mainboard ground, the recognition methods that described USB inserts detection signal is: floating ground is made on the shell of the USB mouth of USB mobile device ground, and on move high level to, when the USB mobile device is inserted into PC, ground loop by the PC end, the USB mouth shell ground of USB mobile device is become the state of dragging down by the state of drawing high, and this state variation is exactly that USB inserts detection signal.
2) utilize the USB mobile device USB interface+5V_USB identifies
When the charge port of USB mobile device and usb data mouth are two interfaces that independently separate, the production method that described USB inserts detection signal is: utilize USB mouth+5V_USB power supply to identify, + 5V_USB acquiescence drags down, when the USB mobile device inserts PC, + 5V_USB is drawn high, and this+5V_USB becomes the state variation of drawing high and is USB and inserts detection signal by dragging down.
Insert detection signal for ease of USB, feed back on the power supply IC of memory module, controlling it opens, the power supply of memory module is provided, the storage power module can be adopted an independently-powered IC, and this independently-powered IC has enable pin, and this enable pin inserts under the detection signal control at USB and open described storage power module, is described memory module power supply; And the voltage VCC that described storage power module produces after can also opening with system controls unlatching, guarantees that USB mobile device normal boot-strap uses.Namely this independently-powered IC inserts detection signal control except available USB, the voltage VCC that produces after also must opening with system controls, be USB insert detection signal and system open the voltage VCC formation that the back produces " or " relation, any one generation, can both make power supply IC work, so just guarantee that the storage of nothing electricity and normal boot-strap use.
In order to guarantee under the situation of open system not, to realize the switching of memory module data line, with the PC proper communication, described USB change-over switch module must be that independently USB switches IC, and this independently USB switch IC and can insert under the detection signal control at described USB and work.
In addition, USB of the present invention inserts testing circuit and also inserts the CPU end that the detection feedback circuit feeds back to USB insertion detection signal the USB mobile device by a USB, when the system of USB mobile device inserts PC under the start situation, the system of USB mobile device also can provide corresponding prompting, realizes that the USB mobile device is with the proper communication of PC.
As shown in Figures 1 to 4, be the structural representation of each Key Circuit of the present invention's one specific embodiment.
As shown in Figure 1, when described USB mobile device adopts USB seat JP4, the production method that described USB inserts detection signal is specifically: shell ground Pin11～16 of JP4 are in floating ground state, and with moving high level end IPSOUT on the R34 resistance to, make USB insert detection signal end USB_SEL and be in high level, when the USB mobile device inserts PC, by PC termination ground circuit, mainboard ground Pin5～8 short circuits are followed in shell ground Pin11～16 of JP4, USB is inserted detection signal end USB_SEL to drag down, thereby the level state that makes USB insert the detection signal end changes, and this state variation is exactly that USB inserts detection signal.In addition, USB inserts detection signal end USB_SEL also by current-limiting resistance R45 connection Pin11～16 among the figure, this Pin11～16 connect the ESD pipe D3 that electrostatic prevention is used by one, and the two ends of D3 also connect the capacitor C 191 of shake when eliminating the plug USB device, avoid causing false triggering.Circuit as shown in Figure 1 namely forms described USB and inserts detection signal generation circuit.
As shown in Figure 2, described storage power module adopts independently-powered ICU13 to give the hard disk part system power supply of USB mobile device, U13 is output as+5V, input is provided by IPSOUT, the enable pin EN of U13 connects the D utmost point of PMOS pipe Q3 and Q8 respectively by schottky diode D2, and (D2 is similar to or the schottky diode of door, when Q3 or the arbitrary conducting of Q8, D2 will export high level), the S utmost point of Q3 and Q8 is connected IPSOUT, the G utmost point of Q3 connects USB and inserts detection signal end USB_SEL and ground connection, and the G utmost point of Q8 connects start voltage V3.3 by triode Q7; The method of supplying power to of described storage power module comprises following two kinds of situations:
1) insert PC when the USB mobile device system under off-mode, USB inserts detection signal end USB_SEL and is pulled down to ground, and the Q3 conducting is drawn high the enable pin EN of U13 by D2 and enabled, and U13 exports the hard disk supply voltage+5V_VCC of USB mobile device;
2) when the USB mobile device system is started shooting, no matter whether insert PC, all can produce V_3.3 voltage, make the Q7 conducting, open Q8, draw high enable pin EN by D2, U13 output hard disk supply voltage+5V_VCC, namely when Q3 or the arbitrary conducting of Q8, D2 will export high level.
Wherein, the G utmost point of described Q3 is to be connected USB insertion detection signal end USB_SEL by a RC filtering circuit of being made up of R36 and C64, is used for the USB mouth shell interference such as shake on the ground of filtering PC.
As shown in Figure 3, described USB change-over switch module adopts independently, and USB switches IC U15, the Pin1 of U15 is high enable pin, this Pin1 connects the C utmost point of triode Q1, the B utmost point of Q1 connects USB and inserts detection signal end USB_SEL, the E utmost point is by resistance R 125 connection+3.3V_SATA, the Pin2 of U15 and Pin8 be connected system CPU respective signal end 7221_DP respectively, 7221_DN, Pin4 and Pin6 are connected USB respectively changes SATA chip signal end SATA_DP and SATA_DN, and Pin3 and Pin7 are connected signal end UDP and the UDN on the USB seat respectively; The changing method of described USB change-over switch module comprises following two kinds of situations:
1) under system's normal boot-strap state, and do not insert PC, this moment, the USB_SEL acquiescence was drawn high IPSOUT, IPSOUT minimum voltage＞3.3V, not conducting of Q1, U15 does not work, default signal SATA_DP meets 7221_DP, SATA_DN meets 7221_DN, and CPU can normally be communicated with hard disk;
2) insert PC under the system closedown state, this moment, USB_SEL pulled down to ground, the Q1 conducting, and U15 work, signal SATA_DP switches to UDP and connects, and SATA_DN meets UDN, and this moment, system began proper communication with PC, also can work as wireless hard disk even without battery and use.
Annotate: this moment system boot, also still keep with the exterior PC communications status, the CPU of system can't communicate by letter with hard disk.In addition ,+3.3V_SATA can be that hard disk supply voltage+5V_VCC produces by the LDO step-down.
As shown in Figure 4, described USB inserts and detects feedback circuit is the B utmost point that the USB_SEL signal is connected PNP triode Q2, and the E utmost point of Q2 connects V3.3, and the C utmost point connects GPIO1 and the ground connection of CPU; Described USB inserts the feedback method that detects feedback circuit: when the USB mobile device inserts PC under the system boot state, system can correspondingly provide relevant prompting, as showing that at liquid crystal display the USB mobile device inserts the relevant information of PC.
In sum, the present invention has following advantage:
1, can allow the mobile device of existing charged pool own or equipment that work the time need connect the externally fed device in not charged pool or powered battery deficiency, and not connect under the externally fed equipment situation, still can normally communicate with PC, carry out the storage of data;
2, in the time only need using data storage function, do not need to open total system, the action of shutdown again after having stored is also saved in power saving.
Though more than described the specific embodiment of the present invention; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; rather than for the restriction to scope of the present invention; those of ordinary skill in the art are in modification and the variation of the equivalence of doing according to spirit of the present invention, all should be encompassed in the scope that claim of the present invention protects.
Claims (12)
1. a USB mobile device realizes not having the method that electricity is stored, it is characterized in that: described USB mobile device has USB and inserts detection signal generation circuit, memory module, storage power module and USB change-over switch module, when the USB mobile device inserts PC, USB inserts detection signal generation circuit and produces USB insertion detection signal, this USB inserts detection signal and is fed back to described storage power module and USB change-over switch module, making described storage power module is described memory module and USB change-over switch module for power supply, described USB change-over switch module switches to communicating by letter of memory module and described PC with communicating by letter between memory module and USB mobile device self CPU, thereby realizes the nothing electricity storage of USB mobile device.
2. a kind of USB mobile device according to claim 1 realizes not having the method for electricity storage, it is characterized in that: when the USB of PC shell ground is when linking together with mainboard ground, the production method that described USB inserts detection signal is: floating ground is made on the shell of the USB mouth of USB mobile device ground, and on move high level to, when the USB mobile device is inserted into PC, ground loop by the PC end, the USB mouth shell ground of USB mobile device is become the state of dragging down by the state of drawing high, and this state variation is exactly that USB inserts detection signal; Perhaps
When the charge port of USB mobile device and usb data mouth are two interfaces that independently separate, the production method that described USB inserts detection signal is: utilize USB mouth+5V_USB power supply to identify, + 5V_USB acquiescence drags down, when the USB mobile device inserts PC, + 5V_USB is drawn high, and this+5V_USB becomes the state variation of drawing high and is USB and inserts detection signal by dragging down.
3. a kind of USB mobile device according to claim 2 realizes not having the method for electricity storage, it is characterized in that: when described USB mobile device adopts USB seat JP4, the production method that described USB inserts detection signal is specifically: shell ground Pin11～16 of JP4 are in floating ground state, and with moving high level end IPSOUT on the R34 resistance to, make USB insert detection signal end USB_SEL and be in high level, when the USB mobile device inserts PC, by PC termination ground circuit, mainboard ground Pin5～8 short circuits are followed in shell ground Pin11～16 of JP4, USB is inserted detection signal end USB_SEL to drag down, thereby the level state that makes USB insert detection signal end USB_SEL changes, and this state variation is exactly that USB inserts detection signal.
4. a kind of USB mobile device according to claim 2 realizes not having the method for electricity storage, it is characterized in that: described USB inserts detection signal end USB_SEL and also connects Pin11～16 by a current-limiting resistance R45, this Pin11～16 connect the ESD pipe D3 that electrostatic prevention is used by one, and the two ends of D3 also connect the capacitor C 191 of shake when eliminating the plug USB device.
5. realize not having the method for electricity storage according to each described a kind of USB mobile device of claim 1 to 4, it is characterized in that: the independently-powered IC of the memory module that described storage power module is described USB mobile device, and enable pin is arranged, and this enable pin inserts under the detection signal control at USB and opens described storage power module, is described memory module power supply;
And the voltage VCC that described storage power module produces after can also opening with system controls unlatching, guarantees that USB mobile device normal boot-strap uses.
6. a kind of USB mobile device according to claim 5 realizes not having the method for electricity storage, it is characterized in that: described storage power module is: adopt independently-powered IC U13 to give the hard disk part system power supply of USB mobile device, U13 is output as+5V, input is provided by described high level end IPSOUT, the enable pin EN of U13 connects the D utmost point of PMOS pipe Q3 and Q8 respectively by schottky diode D2, the S utmost point of Q3 and Q8 is connected described high level end IPSOUT, the G utmost point of Q3 connects USB and inserts detection signal end USB_SEL and ground connection, and the G utmost point of Q8 connects start voltage V3.3 by triode Q7;
The method of supplying power to of described storage power module comprises following two kinds of situations:
1) insert PC when the USB mobile device system under off-mode, USB inserts detection signal end USB_SEL and is pulled down to ground, and the Q3 conducting is drawn high the enable pin EN of U13 by D2 and enabled, and U13 exports the hard disk supply voltage+5V_VCC of USB mobile device;
2) when the USB mobile device system is started shooting, no matter whether insert PC, all can produce V_3.3 voltage, make the Q7 conducting, open Q8, draw high enable pin EN by D2, U13 output hard disk supply voltage+5V_VCC.
7. a kind of USB mobile device according to claim 6 realizes not having the method for electricity storage, it is characterized in that: the G utmost point of described Q3 is to be connected USB insertion detection signal end USB_SEL by a RC filtering circuit of being made up of R36 and C64.
8. realize not having the method for electricity storage according to each described a kind of USB mobile device of claim 1 to 4, it is characterized in that: described USB change-over switch module is that independently USB switches IC, and this independently USB switch IC and can insert under the detection signal control at described USB and work.
9. a kind of USB mobile device according to claim 6 realizes not having the method for electricity storage, it is characterized in that: described USB change-over switch module is that independently USB switches IC, and this independently USB switch IC and can insert under the detection signal control at described USB and work;
Described USB change-over switch module is specifically: adopting independently, USB switches IC U15, the Pin1 of U15 is high enable pin, this Pin1 connects the C utmost point of triode Q1, the B utmost point of Q1 connects USB and inserts detection signal end USB_SEL, the E utmost point is by resistance R 125 connection+3.3V_SATA, the Pin2 of U15 and Pin8 be connected system CPU respective signal end 7221_DP respectively, 7221_DN, Pin4 and Pin6 are connected USB respectively changes SATA chip signal end SATA_DP and SATA_DN, and Pin3 and Pin7 are connected signal end UDP and the UDN on the USB seat respectively;
The changing method of described USB change-over switch module comprises following two kinds of situations:
1) under system's normal boot-strap state, and do not insert PC, this moment, the USB_SEL acquiescence was drawn high IPSOUT, IPSOUT minimum voltage＞3.3V, not conducting of Q1, U15 does not work, default signal SATA_DP meets 7221_DP, SATA_DN meets 7221_DN, and CPU can normally be communicated with hard disk;
2) insert PC under the system closedown state, this moment, USB_SEL pulled down to ground, the Q1 conducting, and U15 work, signal SATA_DP switches to UDP and connects, and SATA_DN meets UDN, and this moment, system began proper communication with PC, also can work as wireless hard disk even without battery and use.
10. realize not having the method for electricity storage according to each described a kind of USB mobile device of claim 1 to 4, it is characterized in that: described USB inserts testing circuit and also inserts the CPU end that the detection feedback circuit feeds back to USB insertion detection signal the USB mobile device by a USB, when the system of USB mobile device inserts PC under the start situation, the system of USB mobile device also can provide corresponding prompting, realizes that the USB mobile device is with the proper communication of PC.
11. a kind of USB mobile device according to claim 9 realizes not having the method for electricity storage, it is characterized in that: described USB inserts testing circuit and also inserts the CPU end that the detection feedback circuit feeds back to USB insertion detection signal the USB mobile device by a USB, when the system of USB mobile device inserts PC under the start situation, the system of USB mobile device also can provide corresponding prompting, realizes that the USB mobile device is with the proper communication of PC.
12. a kind of USB mobile device according to claim 11 realizes not having the method for electricity storage, it is characterized in that: described USB inserts and detects feedback circuit specifically: the B utmost point that the USB_SEL signal is connected PNP triode Q2, the E utmost point of Q2 connects V3.3, and the C utmost point connects GPIO1 and the ground connection of CPU; Described USB inserts the feedback method that detects feedback circuit: when the USB mobile device inserts PC under the system boot state, system can correspondingly provide relevant prompting.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605624A (en) * | 2013-10-23 | 2014-02-26 | 苏州佳世达电通有限公司 | Communication device |
| CN109713903A (en) * | 2019-03-04 | 2019-05-03 | 上海波鸿医疗器械科技有限公司 | A kind of Sofe Switch of series connection input parallel output interlocks DC converter |
| CN110691135A (en) * | 2019-09-29 | 2020-01-14 | 深圳开立生物医疗科技股份有限公司 | Equipment data uploading method and system, Internet of things module and storage medium |
| US10997109B2 (en) | 2016-12-08 | 2021-05-04 | Huawei Technologies Co., Ltd. | Device with USB port |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1351295A (en) * | 2000-10-30 | 2002-05-29 | 提阿克株式会社 | Universal sequential bus arrangement |
| US20060041611A1 (en) * | 2004-08-19 | 2006-02-23 | Shinichiro Fujita | Data transfer control system, electronic apparatus, and program |
| CN1929505A (en) * | 2006-09-25 | 2007-03-14 | 深圳市杰特电信控股有限公司 | Mobile phone with independent moving hard disk |
| CN101266587A (en) * | 2008-04-22 | 2008-09-17 | 惠州市德赛汽车电子有限公司 | USB equipment detection circuit |
| CN101604298A (en) * | 2009-07-14 | 2009-12-16 | 浪潮电子信息产业股份有限公司 | By the method for operating of USB interface to local hard disk information of shutdown system |
| CN201550170U (en) * | 2009-09-18 | 2010-08-11 | 惠州Tcl移动通信有限公司 | USB/charger insert recognition device of mobile terminal |
-
2013
- 2013-04-26 CN CN201310150316.4A patent/CN103268143B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1351295A (en) * | 2000-10-30 | 2002-05-29 | 提阿克株式会社 | Universal sequential bus arrangement |
| US20060041611A1 (en) * | 2004-08-19 | 2006-02-23 | Shinichiro Fujita | Data transfer control system, electronic apparatus, and program |
| CN1929505A (en) * | 2006-09-25 | 2007-03-14 | 深圳市杰特电信控股有限公司 | Mobile phone with independent moving hard disk |
| CN101266587A (en) * | 2008-04-22 | 2008-09-17 | 惠州市德赛汽车电子有限公司 | USB equipment detection circuit |
| CN101604298A (en) * | 2009-07-14 | 2009-12-16 | 浪潮电子信息产业股份有限公司 | By the method for operating of USB interface to local hard disk information of shutdown system |
| CN201550170U (en) * | 2009-09-18 | 2010-08-11 | 惠州Tcl移动通信有限公司 | USB/charger insert recognition device of mobile terminal |
Non-Patent Citations (1)
| Title |
|---|
| COMPAQ ET AL.: "《Universal Serial Bus Specification Revision 2.0》", 27 April 2000, article """", pages: 18 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605624A (en) * | 2013-10-23 | 2014-02-26 | 苏州佳世达电通有限公司 | Communication device |
| US10997109B2 (en) | 2016-12-08 | 2021-05-04 | Huawei Technologies Co., Ltd. | Device with USB port |
| CN109713903A (en) * | 2019-03-04 | 2019-05-03 | 上海波鸿医疗器械科技有限公司 | A kind of Sofe Switch of series connection input parallel output interlocks DC converter |
| CN110691135A (en) * | 2019-09-29 | 2020-01-14 | 深圳开立生物医疗科技股份有限公司 | Equipment data uploading method and system, Internet of things module and storage medium |
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