CN103268143B - A kind of USB mobile device realizes the method stored without electricity - Google Patents
A kind of USB mobile device realizes the method stored without electricity Download PDFInfo
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Abstract
The invention provides a kind of method that USB mobile device realizes storing without electricity, described USB mobile device has USB and inserts detection signal circuit for generating, memory module, storage power module and USB change-over switch module, when USB mobile device inserts PC, USB inserts detection signal circuit for generating 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, described storage power module is made to be described memory module and USB change-over switch module for power supply, communication between memory module and self CPU of USB mobile device is switched to the communication of memory module and described PC by described USB change-over switch module, thus realize storing without electricity of USB mobile device.The present invention can allow the USB mobile device of existing charged pool own, not charged pool or powered battery not enough and under not connecing externally fed equipment situation, still can normally communicate with PC, carry out the storage of data.
Description
Technical field
The present invention relates to a kind of method that USB mobile device realizes storing without electricity.
Background technology
Occur increasing handheld mobile device on the market at present, they are all from charged pool, generally can be communicated with PC (computer) by USB port, carry out the copy of data, storage, backup! When but PC communicates with mobile device, it is the insertion testing mechanism by USB device, the upper pull-down state of D+ or D-of USB port is judged, be confirmed whether that USB device accesses, just can communicate after correctly recognizing USB device, when this just requires that mobile device communicates, system will be opened, and battery must have electricity or PCUSB confession electricity enough normally to open mobile device system.
There is following shortcoming in this technology:
1, when the battery of (big current) mobile device does not have electricity or cell damage completely, communicated with PC by USB port again, because the USB port output current of PC is all limited in 500MA or 900MA, generally cannot meet the Overall Power Consumption of (big current) mobile device, just normally cannot recognize (big current) mobile device, cannot communicate, such as existing wireless mobile hard disk, PAD etc. on the market, when removing battery, and when not connecing externally fed power supply, insert PC and just normally cannot recognize equipment.
If 2 users just hope the operations such as the copy carrying out data in the power-offstate, after USB port access PC, system needs to open completely, and (one is that acquiescence inserts PC just start, the manual start of a kind of needs just can store), if now some mobile device system is more 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 terminates, also manually to carry out the operations such as shutdown, increase 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 the method stored without electricity, can allow the USB mobile device of existing charged pool own, not charged pool or powered battery not enough and under not connecing externally fed equipment situation, still normally can communicate with PC, carry out the storage of data.
The present invention is achieved in that a kind of USB mobile device realizes the method stored without electricity, described USB mobile device has USB and inserts detection signal circuit for generating, memory module, storage power module and USB change-over switch module, when USB mobile device inserts PC, USB inserts detection signal circuit for generating 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, described storage power module is made to be described memory module and USB change-over switch module for power supply, communication between memory module and self CPU of USB mobile device is switched to the communication of memory module and described PC by described USB change-over switch module, thus realize storing without electricity of USB mobile device.
Further, during described USB mobile device employing USB seat JP4, described USB inserts the production method of detection signal specifically: Pin11 ~ 16, the shell of JP4 ground are in floating ground state, and be pulled upward to high level end IPSOUT with R34 resistance, make USB insert detection signal end USB_SEL and be in high level, as USB mobile device access PC, by PC termination ground circuit, Pin11 ~ 16, the shell of JP4 ground with mainboard ground Pin5 ~ 8 short circuit, USB is inserted detection signal end USB_SEL to drag down, thus the level state making USB insert detection signal end changes, this state change is exactly that USB inserts detection signal.
Further, described storage power module is the independently-powered IC of the memory module of described USB mobile device, and has enable pin, and this enable pin opens described storage power module, for described memory module is powered under USB inserts detection signal control; Further, the voltage VCC that described storage power module produces after can also opening by system carries out control and opens, and ensures that USB mobile device normal boot-strap uses.
Further, described storage power module can specifically: adopt independently-powered ICU13 to the hard disk part system of USB mobile device and described memory module and USB change-over switch module for power supply, the output of U13 is+5V, input is provided by IPSOUT, the enable pin EN of U13 connects the D pole of PMOS Q3 and Q8 respectively by schottky diode D2, the S pole of Q3 with Q8 is connected IPSOUT, the G pole of Q3 connects USB and inserts detection signal end USB_SEL and ground connection, and the G pole 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) when USB mobile device system inserts PC in the power-offstate, USB inserts detection signal end USB_SEL and is pulled down to ground, Q3 conducting, by D2, the enable pin EN of U13 is drawn high enable, U13 exports the hard disk supply voltage+5V_VCC of USB mobile device; 2) when USB mobile device system is started shooting, no matter whether insert PC, all can produce V_3.3 voltage, make Q7 conducting, open Q8, draw high enable pin EN by D2, U13 exports hard disk supply voltage+5V_VCC.Wherein, the G pole of described Q3 is connected USB by a RC filtering circuit be made up of resistance R36 and electric capacity C64 to insert detection signal end USB_SEL.
Further, described USB change-over switch module is that independently USB switches IC, and this independently USB switch IC and can insert under detection signal controls at described USB and work.
Further, described USB change-over switch module can specifically: adopt independently USB to switch ICU15, the Pin1 of U15 is high enable pin, this Pin1 connects the C pole of triode Q1, the B pole of Q1 connects USB and inserts detection signal end USB_SEL, E pole is by resistance R125 connection+3.3V_SATA, Pin2 and Pin8 connected system CPU respective signal end 7221_DP and 7221_DN respectively of U15, Pin4 with Pin6 is connected USB respectively and turns SATA chip signal end SATA_DP and SATA_DN, Pin3 with Pin7 is connected signal end UDP and UDN on USB seat respectively; The changing method of described USB change-over switch module comprises following two kinds of situations: 1) when under system normal boot-strap state, and do not access PC, now USB_SEL acquiescence is driven high IPSOUT, IPSOUT minimum voltage > 3.3V, Q1 not conducting, U15 does not work, and default signal SATA_DP meets 7221_DP, SATA_DN and meets 7221_DN, and CPU can normally be communicated with hard disk; 2) when accessing PC under system closedown state, now USB_SEL pulled down to ground, Q1 conducting, U15 works, and signal SATA_DP is switched to and connects with UDP, and SATA_DN meets UDN, now system starts proper communication with PC, also can work as wireless hard disk use even without battery.
Further, described USB inserts detection signal circuit for generating and also by a USB insertion detection feedback circuit, USB is inserted the CPU end that detection signal feeds back to USB mobile device, when the system of USB mobile device inserts PC under switch on condition, the system of USB mobile device also can provide corresponding prompting, realizes the proper communication of USB mobile device with PC.
Further, described USB insert detect feedback circuit can specifically: B pole USB_SEL signal being connected PNP triode Q2, the E pole of Q2 connects V3.3, C pole and connects the GPIO1 of CPU and ground connection; Described USB inserts the feedback method detecting feedback circuit: when USB mobile device inserts PC under system boot state, system correspondingly can provide relevant prompting.
Tool of the present invention has the following advantages:
1, can allow the equipment that needs to connect externally fed device when the mobile device of existing charged pool own or work not charged pool or powered battery not enough, and under not connecing externally fed equipment situation, still normally to communicate with PC, to carry out the storage of data;
2, when only needing to use data storage function, not needing to open whole system, power saving, saving the action of shutting down again after having stored yet.
Accompanying drawing explanation
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the structural representation of the USB insertion detection signal circuit for generating of one embodiment of the invention.
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 detecting feedback circuit.
Embodiment
USB mobile device of the present invention realizes the method stored without electricity, described USB mobile device has USB and inserts detection signal circuit for generating, memory module, storage power module and USB change-over switch module, when USB mobile device inserts PC, USB inserts detection signal circuit for generating 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, described storage power module is made to be described memory module and USB change-over switch module for power supply, communication between memory module and self CPU of USB mobile device is switched to the communication of memory module and described PC by described USB change-over switch module, thus realize storing without electricity of USB mobile device.
The production method that described USB inserts detection signal can adopt the following two kinds:
1) identify with utilizing the shell of the USB interface of USB mobile device
The USB shell ground of existing USB main equipment (i.e. PC) links together with mainboard ground, when PC USB shell with mainboard be link together time, the recognition methods that described USB inserts detection signal is: the shell of the USB port of USB mobile device is made floating ground, and be pulled upward to high level, when USB mobile device is inserted into PC, by the ground loop that PC holds, the USB port shell of USB mobile device is become by the state of drawing high the state of dragging down, and this state change is exactly that USB inserts detection signal.
2)+the 5V_USB of the USB interface of USB mobile device is utilized to identify
When the charge port of USB mobile device and usb data mouth are two interfaces independently separated, the production method that described USB inserts detection signal is: utilize USB port+5V_USB power supply to identify, + 5V_USB acquiescence drags down, as USB mobile device access PC, + 5V_USB is driven high, and this+5V_USB becomes the state drawn high and changes by dragging down and be USB and insert detection signal.
Detection signal is inserted for ease of USB, feed back on the power supply IC of memory module, control it to open, the power supply of memory module is provided, storage power module can be adopted an independently-powered IC, and this independently-powered IC has enable pin, and this enable pin opens described storage power module, for described memory module is powered under USB inserts detection signal control; Further, the voltage VCC that described storage power module produces after can also opening by system carries out control and opens, and ensures that USB mobile device normal boot-strap uses.Namely this independently-powered IC controls except available USB inserts detection signal, the voltage VCC produced after also must opening by system controls, namely the voltage VCC that USB insertion detection signal and system produce after opening forms the relation of "or", any one produces, power supply IC can be made to work, so just ensure to use without electricity storage and normal boot-strap.
In order to ensure the switching realizing memory module data line when not open system, with 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 detection signal controls at described USB and work.
In addition, USB of the present invention inserts detection signal circuit for generating and also by a USB insertion detection feedback circuit, USB is inserted the CPU end that detection signal feeds back to USB mobile device, when the system of USB mobile device inserts PC under switch on condition, the system of USB mobile device also can provide corresponding prompting, realizes the proper communication of USB mobile device with PC.
As shown in Figures 1 to 4, be the structural representation of each Key Circuit of the present invention one specific embodiment.
As shown in Figure 1, during described USB mobile device employing USB seat JP4, described USB inserts the production method of detection signal specifically: Pin11 ~ 16, the shell of JP4 ground are in floating ground state, and be pulled upward to high level end IPSOUT with R34 resistance, make USB insert detection signal end USB_SEL and be in high level, as USB mobile device access PC, by PC termination ground circuit, Pin11 ~ 16, the shell of JP4 ground with mainboard ground Pin5 ~ 8 short circuit, USB is inserted detection signal end USB_SEL to drag down, thus the level state making USB insert detection signal end changes, this state change is exactly that USB inserts detection signal.In addition, in figure, USB inserts detection signal end USB_SEL also by current-limiting resistance R45 connection Pin11 ~ 16, these Pin11 ~ 16 connect the ESD pipe D3 of electrostatic prevention by one, the two ends of D3 the electric capacity C191 of shake when connecing an elimination plug USB device, avoid causing false triggering.Namely circuit as shown in Figure 1 forms described USB and inserts detection signal circuit for generating.
As shown in Figure 2, described storage power module adopts independently-powered ICU13 to the hard disk part system of USB mobile device and described memory module and USB change-over switch module for power supply, the output of U13 is+5V, input is provided by IPSOUT, the enable pin EN of U13 connects the D pole of PMOS Q3 and Q8 respectively by schottky diode D2, and (D2 is similar to or the schottky diode of door, when the arbitrary conducting of Q3 or Q8, D2 will export high level), the S pole of Q3 with Q8 is connected IPSOUT, the G pole of Q3 connects USB and inserts detection signal end USB_SEL and ground connection, the G pole 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) when USB mobile device system inserts PC in the power-offstate, USB inserts detection signal end USB_SEL and is pulled down to ground, and Q3 conducting, makes the enable pin EN of U13 draw high by D2 enable, and U13 exports the hard disk supply voltage+5V_VCC of USB mobile device;
2) when USB mobile device system is started shooting, no matter whether insert PC, all can produce V_3.3 voltage, make Q7 conducting, open Q8, draw high enable pin EN by D2, U13 exports hard disk supply voltage+5V_VCC, and namely when the arbitrary conducting of Q3 or Q8, D2 will export high level.
Wherein, the G pole of described Q3 is connected USB by a RC filtering circuit be made up of resistance R36 and electric capacity C64 to insert detection signal end USB_SEL, for the interference such as USB port shell shake on the ground of filtering PC.
As shown in Figure 3, described USB change-over switch module adopts independently USB to switch ICU15, the Pin1 of U15 is high enable pin, this Pin1 connects the C pole of triode Q1, the B pole of Q1 connects USB and inserts detection signal end USB_SEL, E pole is by resistance R125 connection+3.3V_SATA, Pin2 and Pin8 connected system CPU respective signal end 7221_DP and 7221_DN respectively of U15, Pin4 with Pin6 is connected USB respectively and turns SATA chip signal end SATA_DP and SATA_DN, Pin3 with Pin7 is connected signal end UDP and UDN on USB seat respectively; The changing method of described USB change-over switch module comprises following two kinds of situations:
1) when under system normal boot-strap state, and do not access PC, now USB_SEL acquiescence is driven high IPSOUT, IPSOUT minimum voltage > 3.3V, Q1 not conducting, U15 does not work, and default signal SATA_DP meets 7221_DP, SATA_DN and meets 7221_DN, and CPU can normally be communicated with hard disk;
2) when accessing PC under system closedown state, now USB_SEL pulled down to ground, Q1 conducting, U15 works, and signal SATA_DP is switched to and connects with UDP, and SATA_DN meets UDN, now system starts proper communication with PC, also can work as wireless hard disk use even without battery.
Note: now system boot, also still keep with exterior PC communications status, the CPU of system cannot communicate with hard disk.In addition ,+3.3V_SATA can be that hard disk supply voltage+5V_VCC is produced by LDO step-down.
As shown in Figure 4, described USB inserts and detects feedback circuit is B pole USB_SEL signal being connected PNP triode Q2, and the E pole of Q2 connects V3.3, C pole and connects the GPIO1 of CPU and ground connection; Described USB inserts the feedback method detecting feedback circuit: when USB mobile device inserts PC under system boot state, system correspondingly can provide relevant prompting, as inserted the relevant information of PC at liquid crystal screen display USB mobile device.
In sum, tool of the present invention has the following advantages:
1, can allow the equipment that needs to connect externally fed device when the mobile device of existing charged pool own or work not charged pool or powered battery not enough, and under not connecing externally fed equipment situation, still normally to communicate with PC, to carry out the storage of data;
2, when only needing to use data storage function, not needing to open whole system, power saving, saving the action of shutting down again after having stored yet.
Although the foregoing describe the specific embodiment of the present invention; but be familiar with those skilled in the art to be to be understood that; specific embodiment described by us is illustrative; instead of for the restriction to scope of the present invention; those of ordinary skill in the art, in the modification of the equivalence done according to spirit of the present invention and change, should be encompassed in scope that claim of the present invention protects.
Claims (10)
1. a USB mobile device realizes without the electric method stored, it is characterized in that: described USB mobile device has USB and inserts detection signal circuit for generating, memory module, storage power module and USB change-over switch module, when USB mobile device inserts PC, USB inserts detection signal circuit for generating 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, described storage power module is made to be described memory module and USB change-over switch module for power supply, communication between memory module and self CPU of USB mobile device is switched to the communication of memory module and described PC by described USB change-over switch module, thus realize storing without electricity of USB mobile device,
During described USB mobile device employing USB seat JP4, described USB inserts the production method of detection signal specifically: Pin11 ~ 16, the shell of JP4 ground are in floating ground state, and be pulled upward to high level end IPSOUT with resistance R34, make USB insert detection signal end USB_SEL and be in high level, as USB mobile device access PC, Pin11 ~ 16, described shell ground are by PC termination ground circuit, Pin11 ~ 16, the shell of JP4 ground with mainboard ground Pin5 ~ 8 short circuit, USB is inserted detection signal end USB_SEL to drag down, thus the level state making USB insert detection signal end USB_SEL changes, this state change is exactly that USB inserts detection signal.
2. a kind of USB mobile device according to claim 1 realizes the method without 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, these Pin11 ~ 16 connect the ESD pipe D3 of electrostatic prevention by one, the two ends of D3 the electric capacity C191 of shake when connecing an elimination plug USB device.
3. a kind of USB mobile device according to claim 1 and 2 realizes the method without electricity storage, it is characterized in that: described storage power module is the independently-powered IC of the memory module of described USB mobile device, and there is enable pin, and this enable pin opens described storage power module, for described memory module is powered under USB inserts detection signal control;
Further, the voltage VCC that described storage power module produces after can also opening by system carries out control and opens, and ensures that USB mobile device normal boot-strap uses.
4. a kind of USB mobile device according to claim 3 realizes the method without electricity storage, it is characterized in that: described storage power module is: adopt independently-powered ICU13 to power to the memory module of USB mobile device, the output of U13 is+5V, input is provided by described high level end IPSOUT, the enable pin EN of U13 connects the D pole of PMOS Q3 and Q8 respectively by schottky diode D2, the S pole of Q3 with Q8 is connected described high level end IPSOUT, the G pole of Q3 connects USB and inserts detection signal end USB_SEL and ground connection, the G pole 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) when USB mobile device system inserts PC in the power-offstate, USB inserts detection signal end USB_SEL and is pulled down to ground, and Q3 conducting, makes the enable pin EN of U13 draw high by D2 enable, and U13 exports the hard disk supply voltage+5V_VCC of USB mobile device;
2) when USB mobile device system is started shooting, no matter whether insert PC, all can produce V_3.3 voltage, make Q7 conducting, open Q8, draw high enable pin EN by D2, U13 exports hard disk supply voltage+5V_VCC.
5. a kind of USB mobile device according to claim 4 realizes, without the method for electricity storage, it is characterized in that: the G pole of described Q3 is connected USB by a RC filtering circuit be made up of resistance R36 and electric capacity C64 to insert detection signal end USB_SEL.
6. a kind of USB mobile device according to claim 1 and 2 realizes the method without 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 detection signal controls at described USB and work.
7. a kind of USB mobile device according to claim 4 realizes the method that stores without electricity, 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 detection signal controls at described USB and work;
Described USB change-over switch module is specifically: adopt independently USB to switch ICU15, the Pin1 of U15 is high enable pin, this Pin1 connects the C pole of triode Q1, the B pole of Q1 connects USB and inserts detection signal end USB_SEL, E pole is by resistance R125 connection+3.3V_SATA, Pin2 and Pin8 connected system CPU respective signal end 7221_DP and 7221_DN respectively of U15, Pin4 with Pin6 is connected USB respectively and turns SATA chip signal end SATA_DP and SATA_DN, Pin3 with Pin7 is connected signal end UDP and UDN on USB seat respectively;
The changing method of described USB change-over switch module comprises following two kinds of situations:
1) when under system normal boot-strap state, and do not access PC, now USB_SEL acquiescence is driven high IPSOUT, IPSOUT minimum voltage > 3.3V, Q1 not conducting, U15 does not work, and default signal SATA_DP meets 7221_DP, SATA_DN and meets 7221_DN, and CPU can normally be communicated with hard disk;
2) when accessing PC under system closedown state, now USB_SEL pulled down to ground, Q1 conducting, U15 works, and signal SATA_DP is switched to and connects with UDP, and SATA_DN meets UDN, now system starts proper communication with PC, also can work as wireless hard disk use even without battery.
8. a kind of USB mobile device according to claim 1 and 2 realizes the method without electricity storage, it is characterized in that: described USB inserts detection signal circuit for generating and also by a USB insertion detection feedback circuit, USB inserted the CPU end that detection signal feeds back to USB mobile device, when the system of USB mobile device inserts PC under switch on condition, the system of USB mobile device also can provide corresponding prompting, realizes the proper communication of USB mobile device with PC.
9. a kind of USB mobile device according to claim 8 realizes the method without electricity storage, it is characterized in that: described USB inserts detection signal circuit for generating and also by a USB insertion detection feedback circuit, USB inserted the CPU end that detection signal feeds back to USB mobile device, when the system of USB mobile device inserts PC under switch on condition, the system of USB mobile device also can provide corresponding prompting, realizes the proper communication of USB mobile device with PC.
10. a kind of USB mobile device according to claim 9 realizes the method without electricity storage, it is characterized in that: described USB inserts and detects feedback circuit specifically: B pole USB_SEL signal being connected PNP triode Q2, the E pole of Q2 connects V3.3, C pole and connects the GPIO1 of CPU and ground connection; Described USB inserts the feedback method detecting feedback circuit: when USB mobile device inserts PC under system boot state, system correspondingly can provide relevant prompting.
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| CN103605624A (en) * | 2013-10-23 | 2014-02-26 | 苏州佳世达电通有限公司 | Communication device |
| WO2018103158A1 (en) | 2016-12-08 | 2018-06-14 | 华为技术有限公司 | Device having 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 |
Citations (5)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4239930B2 (en) * | 2004-08-19 | 2009-03-18 | セイコーエプソン株式会社 | Data transfer control system, electronic device and program |
-
2013
- 2013-04-26 CN CN201310150316.4A patent/CN103268143B/en active Active
Patent Citations (5)
| 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 |
| 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 |
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