CN202615384U - Mobile terminal with safety protection function - Google Patents
Mobile terminal with safety protection function Download PDFInfo
- Publication number
- CN202615384U CN202615384U CN 201220239551 CN201220239551U CN202615384U CN 202615384 U CN202615384 U CN 202615384U CN 201220239551 CN201220239551 CN 201220239551 CN 201220239551 U CN201220239551 U CN 201220239551U CN 202615384 U CN202615384 U CN 202615384U
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- Prior art keywords
- module
- nand
- boot sequence
- portable terminal
- safety protection
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Abstract
The utility model discloses a mobile terminal with a safety protection function. The mobile terminal comprises a battery, a power supply management module, a base-band chip, an NAND module, a secure digital (SD) slot, an input/output interface, and a start sequence selection module used for controlling start sequence of the mobile terminal system. The battery is connected with the base-band chip and the start sequence selection module through the power supply management module. The base-band chip is connected with the NAND module, the SD slot and the start sequence selection module. The input/output interface is connected with the start sequence selection module. As the start sequence selection module is used for controlling the start sequence of the mobile terminal system, and output of the start sequence selection module is set to be low level, when the base-band chip is started, choice of start from the NAND module is tacitly approved, and information of mobile terminal users in the NAND module can not be read to ensure safety of the information of the mobile terminal.
Description
Technical field
The utility model relates to technical field of mobile terminals, particularly a kind of portable terminal with function of safety protection.
Background technology
At present; Mobile devices such as mobile phone, MP3, panel computer use baseband chip processing base band signals and graph text information more; Do not have AES mostly among the ROM of domestic baseband chip inside, mobile terminal system is starting, and baseband chip can not carry out authentication through the program curing among its ROM and detect.
In traditional detection design, when the boot sequence foot control system baseband chip of hardware circuit through the control baseband chip starts, whether check earlier that when differentiation can be from the SD card start-up, the user can read the shielded user profile among the NAND from SD card start-up program; When differentiation can't be from the SD card start-up, select from the NAND start-up routine, because the program among the NAND has the authority setting, the user can not read out the information among the NAND, has guaranteed the Information Security of portable terminal.
But at present, a lot of open systems (like the An Zhuo system) are all opened everyone, and so the user can pass through the SD card start-up, and then reads out the shielded user profile among the NAND, and the security of information can not be protected.
Thereby prior art is still waiting to improve and improve.
The utility model content
Weak point in view of above-mentioned prior art; The purpose of the utility model is to provide a kind of portable terminal with function of safety protection; Start the NAND module in the time of controlling the baseband chip startup earlier, guarantee that the user profile among the NAND can not read, thereby guaranteed the security of information.
In order to achieve the above object, the utility model has been taked following technical scheme:
A kind of portable terminal with function of safety protection, it comprises battery, power management module, baseband chip, NAND module, SD draw-in groove, input/output interface and is used to control the boot sequence selection module of the boot sequence of mobile terminal system; Said battery connects baseband chip through power management module and boot sequence is selected module; Said baseband chip connects NAND module, SD draw-in groove, input/output interface and boot sequence and selects module, and said input/output interface connects boot sequence and selects module.
Described portable terminal with function of safety protection, wherein, said boot sequence selects module to comprise pull-up resistor and pull down resistor; One end of said pull-up resistor connects power management module, and the other end connects a PIN pin of input/output interface, and an end of said pull down resistor connects the boot sequence control pin of baseband chip and the 2nd PIN pin of input/output interface, other end ground connection.
Described portable terminal with function of safety protection, wherein, the resistance of said pull down resistor is ten times of pull-up resistor.
Described portable terminal with function of safety protection, wherein, said input/output interface is the USB mouth.
Described portable terminal with function of safety protection wherein, is provided with the SD card in the said SD draw-in groove.
Described portable terminal with function of safety protection, wherein, said portable terminal is mobile phone, panel computer or net book.
Compared to prior art; The portable terminal with function of safety protection that the utility model provides adopted the boot sequence of the boot sequence that is used to control mobile terminal system to select module, and boot sequence selects the output of module to be set to low level; When baseband chip is started; Acquiescence is selected to start from the NAND module, and the information of the mobile phone users in the said NAND module can not be read at this moment, has guaranteed the security of information of mobile terminal.
Description of drawings
Fig. 1 is the structured flowchart that the utlity model has the function of safety protection portable terminal.
Fig. 2 is the circuit diagram that the utlity model has the boot sequence selection module in the function of safety protection portable terminal.
Embodiment
The utility model provides a kind of portable terminal with function of safety protection, for purpose, technical scheme and the effect that makes the utility model is clearer, clear and definite, below develops simultaneously embodiment to the utility model further explain with reference to accompanying drawing.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
See also Fig. 1, it has a function of safety protection mobile terminal structure block diagram for what the utility model provided.As shown in the figure, it comprises battery 101, power management module 102, baseband chip 103, boot sequence selection module 104, NAND module 105, input/output interface 106 and SD draw-in groove 107.
Said battery 101 is used to provide portable terminal work needed electric weight, and it connects baseband chip 103 through power management module 102 and selects module 104 with boot sequence.Said baseband chip 103 is as the central controller of portable terminal; Be mainly used in each peripheral cell of control mobile terminal system; Said baseband chip 103 connects NAND module 105, SD draw-in groove 107, input/output interface 106 and boot sequence and selects module 104, and the inner ROM of baseband chip 103 integrated the required program of system start-up.Said boot sequence selects module 104 to connect input/output interface 106 and baseband chip 103, is used for the boot sequence of control system.In the present embodiment, said baseband chip 103 connects said boot sequence through boot sequence control pin 108 and selects module 104.
Among the utility model embodiment, said portable terminal is mobile phone, panel computer or net book, and said input/output interface is USB mouth or other interfaces.Be provided with the SD card in the said SD draw-in groove 107.
In the specific implementation; The system default boot sequence selects the output of module 104 to be set to low level; The voltage of said battery 101 outputs is handled through said power management module 102; Convert correspondent voltage to and select module 104 power supplies for said baseband chip 103 and said boot sequence, specifically provide 2.8V voltage to select module 104 power supplies to boot sequence.
When baseband chip 103 starts; Boot sequence is selected module 104 output low levels; Boot sequence control pin 108 also is a low level at this moment; Make the program among the ROM in the said baseband chip 103 detect earlier whether the sign of startup is arranged in the said NAND module 105; When the sign of startup was arranged in the NAND module 105, the reproducer among the ROM copied to the pairing start-up routine of startup sign in the NAND module 105 in the internal memory in the baseband chip 103 and moves this start-up routine, and this moment, portable terminal was in normal operating conditions; Have only when being not activated sign in the NAND module 105; Program in the baseband chip 103 among the ROM can detect just whether the sign of startup is arranged in the SD card in the said SD draw-in groove 107; When detecting the startup sign in the said SD card; Reproducer among the ROM in the baseband chip 103 indicates that with the startup in the SD card in the SD draw-in groove 107 pairing start-up routine copies in the internal memory in the baseband chip 103 and moves this start-up routine, row work when this moment, mobile terminal system was according to the program in the SD card; When not detecting the startup sign in the SD card, the mobile terminal system collapse is in abnormal operating state.When system is started by NAND and since among the NAND program moved through certain authority setting, security is arranged, the terminal user can't obtain the shielded information among the NAND in the case.
If; Boot sequence selects the output of module 104 to be set to high level; Be that boot sequence control pin 108 is during for high level; When startup, the program in the said baseband chip 103 among the ROM detects earlier in the SD card in the said SD draw-in groove 107 whether the sign of startup is arranged, when detecting the startup sign in the said SD card; Reproducer among the ROM in the baseband chip 103 indicates that with the startup in the SD card in the SD draw-in groove 107 pairing start-up routine copies in the internal memory in the baseband chip 103 and moves this start-up routine, and this moment, mobile terminal system was in normal operating conditions; Have only when not detecting the startup sign in the SD card; Program among the ROM in the baseband chip 103 can detect just whether the sign of startup is arranged in the said NAND module 105; When the sign of startup is arranged in the NAND module 105; Reproducer among the ROM in the baseband chip 103 copies to the pairing start-up routine of startup sign in the NAND module 105 in the internal memory in the baseband chip 103 and moves this start-up routine, and this moment, cell phone system was in normal operating conditions.When system during by the SD card start-up; For a lot of open systems (like the An Zhuo system), the user is easy to download start-up routine from network, and open start-up routine is downloaded in the SD card; Just can so that system from the SD card start-up; Through the start-up routine in the SD card, just can let the terminal user realize operation to all information among the NAND, make mobile terminal software safe property all gone.
See also Fig. 2, Fig. 2 is the circuit diagram that the utlity model has the boot sequence selection module in the function of safety protection portable terminal.Said boot sequence selects module 104 to comprise pull-up resistor R1 and pull down resistor R2.The resistance of said pull down resistor is ten times of pull-up resistor.The end of said pull-up resistor R1 connects said power management module 102; The other end connects a PIN pin 11 of said input/output interface 106; The end of said pull down resistor R2 connects the boot sequence control pin 108 of said baseband chip 103 and the 2nd PIN pin 12 of input/output interface 106, other end ground connection.
Following portable terminal is a mobile phone, and power management module 102 is selected the voltage of module output 2.8V to boot sequence, and the resistance of pull-up resistor R1 is 1K Ω, and to be 10K Ω be elaborated to the principle of work of the utility model the resistance of pull down resistor R2:
When mobile phone is under the normal operating position, the voltage on said the 2nd PIN pin 12 is pulled into low level under the pull down resistor R2, and this moment, the boot sequence control pin 108 of said baseband chip 103 was a low level; Voltage on the said PIN pin 11 is pulled into high level on the pull-up resistor R1.Thereby baseband chip 103 is when starting, and attempts earlier starting from NAND, because the beginning of each subregion of NAND all has the sign of startup; In a single day start-up routine detects and starts sign among the ROM in the baseband chip 103; Just think and found start-up routine that even system crash, initial data that also can not all subregions of NAND is all destroyed; Even, can not go to attempt again from the SD card start-up so system can't start successfully from NAND yet.Even so in the SD card start-up routine is arranged, also can do nothing to help the information of user capture NAND.Thereby guaranteed the Information Security among the NAND.
If the cell phone system collapse, the program in the NAND module can't normally start, and needs through the SD card NAND burning program again.The user of the utility model mandate this moment (for example; Inner research staff or after-sales service personnel) pass through a said PIN pin 11 and 12 short circuits of said the 2nd PIN pin; Voltage on a PIN pin 11 and the 2nd PIN pin 12 equates at this moment; And be high level, the voltage of the boot sequence control pin 108 of said baseband chip 103 is at this moment:
VIN=2.8 * R1/ (R1+R2)=2.8 * 10/ (10+1)=2.55 volt.
So in the baseband chip 103 among the ROM start-up routine this level is judged to be high level; Thereby baseband chip 103 is when starting, and attempts earlier from the SD card start-up, when in detecting the SD card, starting zone bit; Just the start-up routine in the SD card is copied in the internal memory, and operation.Thereby authorized user can be realized the different operating to NAND through the different start-up routine of design.
In sum; The portable terminal that the utility model provides with function of safety protection; When portable terminal is in proper working order; Baseband chip is selected to start from the NAND module earlier, and the information of the mobile phone users in the said NAND module can not be read by the authority restriction at this moment, has guaranteed the security of information in the mobile phone users NAND module; When the portable terminal operation irregularity; Through two PIN pin short circuits with input/output interface; Make baseband chip select the SD card start-up from the SD draw-in groove earlier; Have only the user of the utility model mandate to operate, can revise or upgrade the program in the NAND module, can limit the scope that user profile comes forth again the information in the NAND module.
It is understandable that; Concerning those of ordinary skills; Can be equal to replacement or change according to the technical scheme and the utility model design thereof of the utility model, and all these changes or replacement all should belong to the protection domain of the appended claim of the utility model.
Claims (6)
1. portable terminal with function of safety protection; It is characterized in that the boot sequence that comprises battery, power management module, baseband chip, NAND module, SD draw-in groove, input/output interface and be used to control the boot sequence of mobile terminal system is selected module; Said battery connects baseband chip through power management module and boot sequence is selected module; Said baseband chip connects NAND module, SD draw-in groove, input/output interface and boot sequence and selects module, and said input/output interface connects boot sequence and selects module.
2. the portable terminal with function of safety protection according to claim 1 is characterized in that, boot sequence selects module to comprise pull-up resistor and pull down resistor; One end of said pull-up resistor connects power management module, and the other end connects a PIN pin of input/output interface, and an end of said pull down resistor connects the boot sequence control pin of baseband chip and the 2nd PIN pin of input/output interface, other end ground connection.
3. the portable terminal with function of safety protection according to claim 2 is characterized in that, the resistance of said pull down resistor is ten times of pull-up resistor.
4. the portable terminal with function of safety protection according to claim 1 and 2 is characterized in that, said input/output interface is the USB mouth.
5. the portable terminal with function of safety protection according to claim 1 is characterized in that, is provided with the SD card in the said SD draw-in groove.
6. the portable terminal with function of safety protection according to claim 1 is characterized in that, said portable terminal is mobile phone, panel computer or net book.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220239551 CN202615384U (en) | 2012-05-25 | 2012-05-25 | Mobile terminal with safety protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220239551 CN202615384U (en) | 2012-05-25 | 2012-05-25 | Mobile terminal with safety protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202615384U true CN202615384U (en) | 2012-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220239551 Expired - Fee Related CN202615384U (en) | 2012-05-25 | 2012-05-25 | Mobile terminal with safety protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202615384U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105786146A (en) * | 2016-03-02 | 2016-07-20 | 惠州Tcl移动通信有限公司 | Mobile terminal and method for preventing power cross short circuit |
| CN107911816A (en) * | 2017-11-27 | 2018-04-13 | 泰凌微电子（上海）有限公司 | Startup method, multimode IoT equipment and storage medium for multimode IoT equipment |
-
2012
- 2012-05-25 CN CN 201220239551 patent/CN202615384U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105786146A (en) * | 2016-03-02 | 2016-07-20 | 惠州Tcl移动通信有限公司 | Mobile terminal and method for preventing power cross short circuit |
| CN105786146B (en) * | 2016-03-02 | 2019-04-30 | 惠州Tcl移动通信有限公司 | It is a kind of to prevent power supply from intersecting short-circuit mobile terminal and its method |
| CN107911816A (en) * | 2017-11-27 | 2018-04-13 | 泰凌微电子（上海）有限公司 | Startup method, multimode IoT equipment and storage medium for multimode IoT equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20121219 Termination date: 20130525 |