CN100585723C - Safe U disk memorizer - Google Patents
Safe U disk memorizer Download PDFInfo
- Publication number
- CN100585723C CN100585723C CN200610145336A CN200610145336A CN100585723C CN 100585723 C CN100585723 C CN 100585723C CN 200610145336 A CN200610145336 A CN 200610145336A CN 200610145336 A CN200610145336 A CN 200610145336A CN 100585723 C CN100585723 C CN 100585723C
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- management chip
- power management
- microprocessor
- battery
- chip
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Abstract
The invention relates to a U-disk memory, in particular to a safe U-disk memory having offline protecting function. The safe U-disk memory comprises a shell, a cover body and a circuit board, wherein the circuit board is provided with a USB plug, a microprocessor and a data storage chip, and is further provided with a power source management chip, a battery, a tamper micro-switch and a keypad cleaning switch. The USB plug is connected with the microprocessor through the power source management chip. The power source management chip is connected with ground through the battery. The power source management chip is connected with a resistance R1, and the resistance R1 is connected with ground through the tamper micro-switch and the keypad cleaning switch respectively. As the U-disk memory is provided with an internal power source, the internal power source can supply power for the U-disk when the U-disk is offline; the safety cleaning work and tamper cleaning work can be performed with the power source consequently, thus protecting the data content in the U-disk memory to a maximum.
Description
Technical field
The present invention is a kind of USB flash disk storer, particularly a kind of safe U disk memorizer with off line defencive function.
Background technology
The application of USB flash disk storer is quite extensive, the file data on the USB flash disk storer maintain secrecy and security issues become increasingly urgent.In the prior art, the cipher mode of USB flash disk storer all needs to be connected on the computer to finish, in case separating computer, the USB flash disk storer itself is not possess safety practice.If run into the situation that emergency condition or next door do not have computer, just can only place hope on the cryptoguard of USB flash disk storer self, and file data itself still is on USB flash disk, still leaves hidden danger.
Summary of the invention
In case the objective of the invention is in order to overcome the only effective shortcoming that just can not move of separating computer when USB flash disk connects computer of existing USB flash disk storer, and invent a kind ofly battery is housed, behind separating computer, still can realizes the removing of USB flash disk data, the safe U disk memorizer with off line defencive function of protected file safety to the full extent by button operation in the USB flash disk memory inside.
The objective of the invention is to realize by following technical scheme: described safe U disk memorizer comprises shell, lid and circuit board, circuit board is provided with USB plug, microprocessor, pin-saving chip, it is characterized in that: also be provided with power management chip, battery, tamper microswitch and button clear switch on the circuit board; USB plug links by power management chip and microprocessor, power management chip by battery with link; Power management chip connects with resistance R 1, resistance R 1 respectively by tamper microswitch and button clear switch with link.
Described battery is a lithium battery.
Good effect of the present invention is as follows: because this USB flash disk storer is provided with built-in power; so when the USB flash disk off line, built-in power can be the USB flash disk power supply, and power supply has been arranged; just can carry out Safety Sweep work and tamper removing work, farthest protect the data content in the USB flash disk storer.
Description of drawings
Fig. 1 is part placement figure of the present invention
Fig. 2 is circuit theory diagrams of the present invention
Among the figure, 1 shell, 2 circuit boards
3USB plug 4 power management chips
5 batteries (BT1), 6 microprocessors
7 tamper microswitches (S1), 8 pin-saving chips
9 button clear switches (S2), 10 lids
Embodiment
Shown in Figure 2 as Fig. 1, described safe U disk memorizer comprises shell 1, lid 10 and circuit board 2, circuit board 2 is provided with USB plug 3, microprocessor 6, pin-saving chip 8, also is provided with power management chip 4, battery 5, tamper microswitch 7 and button clear switch 9 on the circuit board 2; USB plug 3 links by power management chip 4 and microprocessor 6, power management chip 4 by battery 5 with link; Power management chip 4 connects with resistance R 1, resistance R 1 respectively by tamper microswitch 7 and button clear switch 9 with link.
Described battery 5 is a lithium battery.
Principle of work of the present invention is as follows:
Battery and charging: this USB flash disk has been installed rechargeable battery 5 in casing inside.When the USB plug 3 of USB flash disk was inserted computer, computer was the USB flash disk power supply, realizes authentication, the read-write capability of USB flash disk, charges by 4 pairs of batteries 5 of power management chip simultaneously; Off line when the USB plug 3 of USB flash disk is extracted computer, battery 5 is powered for USB flash disk.
Cipher authentication: when the USB plug 3 of USB flash disk is inserted computer, computer prompting input password, if the input password is correct, USB flash disk can be read and write normally, if three input passwords are all incorrect, with the subscriber data file in the storage chip 8 that clears data automatically.
Singly-bound is removed: when the USB flash disk off line, battery 5 is the USB flash disk power supply; When pressing singly-bound clear switch 9 and surpassed for 2 seconds, power management chip 4 startups that be triggered is that microprocessor 6 and pin-saving chip 8 are powered; Microprocessor 6 is by carrying out the internal processes instruction, and with the subscriber data file full scale clearance in the pin-saving chip 8, after removing finished, microprocessor 6 was with automatic powered-down managing chip 4.
Tearing shell open removes: under the normal condition, tamper microswitch 7 is depressed by shell, and when opening the USB flash disk shell, tamper microswitch 7 is upspring, and power management chip 4 startups that be triggered is that microprocessor 6 and pin-saving chip 8 are powered.Microprocessor 6 is by carrying out the internal processes instruction, and with the subscriber data file full scale clearance in the pin-saving chip 8, after removing finished, microprocessor 6 was with automatic powered-down managing chip 4.
Claims (2)
1. safe U disk memorizer, it is characterized in that: described safe U disk memorizer comprises shell, lid and circuit board, circuit board is provided with USB plug, microprocessor, pin-saving chip, it is characterized in that: also be provided with power management chip, battery, tamper microswitch and button clear switch on the circuit board; The power output end of USB plug is connected to power management chip, and the data output end of USB plug is connected to microprocessor, power management chip by battery with link; Power management chip connects with resistance R 1, resistance R 1 respectively by tamper microswitch and button clear switch with link; Power management chip receives the trigger pip of button clear switch or tamper microswitch, output 3.3V power supply is to microprocessor and pin-saving chip, microprocessor start and the deleted data storage chip on whole subscriber data files and after deleting successfully, output signal to power management chip and disconnect its 3.3V out-put supply.
2. safe U disk memorizer according to claim 1 is characterized in that: described battery 5 is lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610145336A CN100585723C (en) | 2006-11-24 | 2006-11-24 | Safe U disk memorizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610145336A CN100585723C (en) | 2006-11-24 | 2006-11-24 | Safe U disk memorizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101192441A CN101192441A (en) | 2008-06-04 |
| CN100585723C true CN100585723C (en) | 2010-01-27 |
Family
ID=39487369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610145336A Expired - Fee Related CN100585723C (en) | 2006-11-24 | 2006-11-24 | Safe U disk memorizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100585723C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102521167B (en) * | 2011-12-18 | 2015-07-08 | 西安安智科技有限公司 | USB (universal serial bus) electronic information anti-disclosure memory device and method |
| US9477272B2 (en) * | 2015-01-21 | 2016-10-25 | Lenovo (Singapore) Pte. Ltd. | Prevention of removal of solid state drive from computer housing with data being accessible thereon |
| CN106020833A (en) * | 2016-05-26 | 2016-10-12 | 苏州乐派特机器人有限公司 | U-flash disk type building block used for physical programming |
| CN107729776A (en) * | 2017-08-25 | 2018-02-23 | 芜湖市振华戎科智能科技有限公司 | Encryption lock USB flash disk |
| CN107657305A (en) * | 2017-09-29 | 2018-02-02 | 芜湖市振华戎科智能科技有限公司 | Integral type encrypted U disk |
| CN107886153A (en) * | 2017-11-22 | 2018-04-06 | 深圳市辰星瑞腾科技有限公司 | It is a kind of can active data remove USB flash disk |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400538A (en) * | 2001-08-03 | 2003-03-05 | 天瀚科技股份有限公司 | Portable handwriting device with trace recording function |
| CN1405686A (en) * | 2001-09-14 | 2003-03-26 | 东维成科技股份有限公司 | System and method for ensuring computer host safety |
| CN2549526Y (en) * | 2002-06-14 | 2003-05-07 | 李栋 | USB storage |
| CN2626154Y (en) * | 2003-05-27 | 2004-07-14 | 信利电子有限公司 | Digital MP3 player |
-
2006
- 2006-11-24 CN CN200610145336A patent/CN100585723C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400538A (en) * | 2001-08-03 | 2003-03-05 | 天瀚科技股份有限公司 | Portable handwriting device with trace recording function |
| CN1405686A (en) * | 2001-09-14 | 2003-03-26 | 东维成科技股份有限公司 | System and method for ensuring computer host safety |
| CN2549526Y (en) * | 2002-06-14 | 2003-05-07 | 李栋 | USB storage |
| CN2626154Y (en) * | 2003-05-27 | 2004-07-14 | 信利电子有限公司 | Digital MP3 player |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101192441A (en) | 2008-06-04 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20131124 |