CN1320430C - Gradient induction encrypted method - Google Patents
Gradient induction encrypted method Download PDFInfo
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- CN1320430C CN1320430C CNB2004100201632A CN200410020163A CN1320430C CN 1320430 C CN1320430 C CN 1320430C CN B2004100201632 A CNB2004100201632 A CN B2004100201632A CN 200410020163 A CN200410020163 A CN 200410020163A CN 1320430 C CN1320430 C CN 1320430C
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- intelligent terminal
- mobile intelligent
- microprocessor
- secret code
- password
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Abstract
The present invention relates to a gradient sensing encryption method which is mainly composed of a sensor chip 1 and a microprocessor 2. A balance sensing signal generated by the sensor chip is sent to a chronograph / timer port of the microprocessor, and then the microprocessor decodes the balance sensing signal. The microprocessor records the tracks of cursor movement as the secret code of the mobile intelligent terminal. The secret code is inputted through swinging a control panel of the mobile intelligent terminal. The encryption is finished through comparing the new tracks of the cursor movement and the secret code stored in the microprocessor. The present invention has the advantages that the tracks of the cursor movement serve as the secret code of the mobile intelligent terminal to replace the traditional input of a key or a touch screen which serves as the secret code; the abuse of the inconvenient memorization of number secret code and letter secret code is avoided; a little unnecessary trouble caused by the forgetting of the secret code is reduced. The encryption method makes the precondition of not influencing the portability of the mobile intelligent terminal. Thus, the present invention has the characteristics of simple structure and strong operating reliability, which is an ideal mobile intelligent terminal for extensive computer users.
Description
Technical field
The present invention relates to computer realm, specifically a kind of encryption method of mobile intelligent terminal.
Background technology
Present various mobile intelligent terminal, as palm PC PDA, be applied to the robot calculator field more and more widely, its password input is generally traditional button or touch-screen method, and the password of input mostly is numeral or alphabetical, because numeral or letter are not easy to memory, the user often causes unnecessary trouble because forget Password.If can be under the prerequisite that does not influence the mobile intelligent terminal portability, realize need not the cryptoguard mode of button, and the password of input is convenient to memory, this bring great convenience can for undoubtedly vast mobile intelligent terminal user.
The encryption method of the mobile intelligent terminal that the present invention proposes is with the input vector of gravity as acceleration of gravity balance induction installation (sensor chip), by computed in software, thus the locus of button cursor on definite mobile intelligent terminal control panel.When the control panel of mobile intelligent terminal was parallel to the ground, acceleration transducer was the most responsive to degree of tilt.In case during the control panel run-off the straight of mobile intelligent terminal, the button cursor on the control panel will roll under the effect of acceleration of gravity, and notes this track by CPU, as the password of this mobile intelligent terminal.When the needs password was imported, the user still rocked control panel in an identical manner, and the password of storing among new cursor motion track that obtains and the CPU is compared in certain error range, and then password is correct as if unanimity, otherwise password bad.Proposition of the present invention can make this imagination be achieved.
Summary of the invention
The objective of the invention is to propose a kind of with built-in sense of equilibrium's induction method as the password input information; as password, under the prerequisite that does not influence the mobile intelligent terminal portability, realize the cipher protection function of mobile intelligent terminal with the vibrating locus of cursor on the mobile intelligent terminal control panel.
Degree of tilt induction encryption method mainly is made up of sensor chip 1 and microprocessor 2, as shown in Figure 1.Sensor chip 1 produces X, the induction signal X of the sense of equilibrium of Y direction
OUTAnd Y
OUTBe sent to the timer/timer port of microprocessor 2, by microprocessor μ P to the induction signal X of the sense of equilibrium
OUTAnd Y
OUTDecode, calculate X, the acceleration on the Y both direction is correspondingly controlled direction and speed that onscreen cursor moves.The track that is moved by microprocessor 2 record cursors is as the password of mobile intelligent terminal, the input of password is by rocking the control panel of mobile intelligent terminal, the password of storing among the cursor motion track that newly obtains and the microprocessor μ P2 is necessarily being compared in the error range, thereby be accomplished to the purpose that mobile intelligent terminal is encrypted.The intelligent encryption control method that the present invention proposes is with the input vector of gravity as acceleration of gravity balance induction installation (sensor chip), by (curing) computed in software, thus the locus of cursor on definite mobile intelligent terminal control panel.When the control panel of mobile intelligent terminal was parallel to the ground, acceleration transducer was the most responsive to degree of tilt.In case during the control panel run-off the straight of mobile intelligent terminal, the cursor on the control panel will roll, note track that cursor moves and its password as this mobile intelligent terminal by CPU under the effect of acceleration of gravity.When the needs user inputs password, the user still rocks control panel in an identical manner, thereby the cursor on the mobile intelligent terminal control panel is rolled, and the password of storing among a new cursor motion track that obtains and the CPU is being compared in certain error range, if track unanimity then illustrate that password is correct, otherwise password bad.Need the user to re-enter correct password.
ADXL202E is the two dimension acceleration sensor chip, and it can be provided at X, on the Y direction with the digital signal of the proportional working cycle of acceleration (being pulse width and the ratio in cycle) as output.A μ P can be directly imported in this working cycle output, working cycle is counted and calculated respectively X, the acceleration on the Y direction by μ P.X, the working cycle curve of typical case's output as shown in Figure 5 on the Y direction.
Wherein: the width that is in " on " state in the T1-circulation.
The width of T2-global cycle.Variation range: by 0.5ms to 10ms.
The time of working cycle-be in " on " state (T1) accounts for the ratio of global cycle (T2).
The pulse width of pulse width-be in " on " state.
Acceleration formula:
Acceleration (g)=(T1/T2-50%)/(12.5%)
Here, 0g represents 50% working cycle.Zoom factor: 12.5% working cycle/g
At X, on the Y both direction, output circuit can feed timer/timer port of a μ P to analog signal conversion for using working cycle modulated digital signal, this digital signal, and it is counted and decodes.Timer/timer is by measuring T1, the length of T2 signal and by above-mentioned formula: acceleration (g)=(T1/T2-50%)/(12.5%) calculates acceleration.Coding/decoding method has a lot, and the method that present embodiment adopts is (shown in Figure 6 as curve), and timer begins counting from the rising edge (Ta=0) of X-axis, and record negative edge (Tb), timer stop timing when X-axis rising edge (Tc) arrival next time.T1＝Tb-Ta，T2＝Tc-Ta。For Y-axis output, do to handle equally (Td, Te, Tf).
Description of drawings
Accompanying drawing 1 is hardware system block diagram of the present invention.
Wherein: the ST-test; T2-connects R
SET, by R
SETT2 is set; The COM-common port; Y
OUTThe output of-Y passage working cycle; X
OUTThe output of-X passage working cycle; Y
FILT-Y channel filtering pin; X
FILT-X passage filtering pin; V
DD-3V is to 5.25V.
Accompanying drawing 3 is ADXL202E chip circuit figure.
Accompanying drawing 4 is the software for calculation process flow diagram.
Accompanying drawing 5 is X, the working cycle curve map of typical case's output on the Y direction.
Accompanying drawing 6 is the decoding process curve map of ADXL202E chip.
Embodiment
Below the present invention is described further by specific embodiment.
The present invention adopts the ADXL202E chip of ANALOG company as sensor chip 1.This chip both can be measured dynamic acceleration, can measure static acceleration again.Measurement range: ± 2g.The ADXL202E built-in chip type in mobile intelligent terminal, and is connected with the microprocessor μ P of mobile intelligent terminal, and the ADXL202E chip circuit as shown in Figure 3.The connection situation of eight pins of chip is: V
DDMeet 3V to the 5.25V power supply; V
DDAnd connect capacitor C between the COM
DCPlay the effect of uncoupling, C
DCRecommendation 0.1 μ F; X
FILT, Y
FILTConnect capacitor C respectively
X, C
Y, and by C
X, C
YValue the bandwidth of low-pass filter is set; T2 connecting resistance R
SETX
OUTAnd Y
OUTBe respectively X, the output on the Y direction, timer/timer port of a μ P of feeding, μ P calculates X respectively by software, the acceleration on the Y direction; ST is a test lead.
The present embodiment parameter is provided with: C
DC: recommendation 0.1 μ F; T2:X, the Y direction is used the width of identical global cycle.The T2 computing formula is as follows, by different R is set
SETValue is provided with T2.
C
X, C
Y: by C
X, C
YThe bandwidth of low-pass filter is set.
R
FILT: representative value 32k Ω.
The software for calculation workflow:
The groundwork flow process of software as shown in Figure 4.When requiring the user to input password, the user rocks the control panel of mobile intelligent terminal in some way, the input of sensor chip induction this moment acceleration of gravity.The output X of CPU read transducer chip ADXL202E at first
OUTAnd Y
OUTCalculate X, the acceleration of Y both direction and cursor are at X, the new coordinate of Y direction, and the new coordinate of cursor and former coordinate compared, if do not have to change then continue the output of read transducer chip ADXL202E, if change, the reposition of display highlighting on screen then, and note the motion track of cursor by CPU, the password that it and user are provided with compares, if the password unanimity then enters respective handling, otherwise the password input is incorrect, re-enter password, CPU is the output of read transducer chip ADXL202E again.
Beneficial effect of the present invention and advantage be, the gradient induction encryption method of proposition with the track of cursor movement as The password of mobile intelligent terminal, replace traditional with button or touch-screen as the method for Password Input, avoided like this number The drawback that word and alphabetical password are not easy to remember has reduced and has manyly caused unnecessary trouble owing to the user forgets Password. This encryption method is that not affect the mobile intelligent terminal portability be prerequisite, thus the present invention have simple in structure, operation can Leaning on the strong characteristics of property, is the desirable mobile intelligent terminal of vast computer user.
Claims (1)
1. degree of tilt is responded to encryption method, be used for mobile intelligent terminal, wherein mobile intelligent terminal comprises sensor chip (1) and microprocessor (2), it is characterized in that sense of equilibrium's induction signal of sensor chip (1) generation is sent to the timer/timer port of microprocessor (2), microprocessor (2) is decoded to sense of equilibrium's induction signal, the track that is moved by microprocessor (2) record cursor is as the password of mobile intelligent terminal, the input of password is by rocking the control panel of mobile intelligent terminal, the password of storage in new cursor motion track and the microprocessor (2) compared finish checking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100201632A CN1320430C (en) | 2004-07-27 | 2004-07-27 | Gradient induction encrypted method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100201632A CN1320430C (en) | 2004-07-27 | 2004-07-27 | Gradient induction encrypted method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1598750A CN1598750A (en) | 2005-03-23 |
| CN1320430C true CN1320430C (en) | 2007-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100201632A Expired - Fee Related CN1320430C (en) | 2004-07-27 | 2004-07-27 | Gradient induction encrypted method |
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| Country | Link |
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| CN (1) | CN1320430C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102483784A (en) * | 2009-08-27 | 2012-05-30 | 讯宝科技公司 | Systems and methods for pressure-based authentication of a signature on a touch screen |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101464741B (en) | 2007-12-19 | 2011-12-07 | 联想(北京)有限公司 | Touch panel and its use method and notebook computer with the same |
| CN101676926B (en) * | 2008-09-16 | 2012-12-19 | 深圳富泰宏精密工业有限公司 | Touch type electronic equipment and its authority control method |
| CN102480540A (en) * | 2010-11-19 | 2012-05-30 | 英业达股份有限公司 | Mobile telephone and operation method thereof |
| CN103186744B (en) * | 2011-12-29 | 2016-05-04 | 宇龙计算机通信科技(深圳)有限公司 | Terminal encipher-decipher method and terminal |
| EP2972714A4 (en) * | 2013-03-14 | 2016-11-02 | Intel Corp | Providing hybrid touchpad in computing device |
| CN106355078A (en) * | 2016-09-12 | 2017-01-25 | 上海凌翼动力科技有限公司 | Intelligent password protecting system based on multifunctional-key behavior recognition |
| CN106534479B (en) * | 2016-09-12 | 2019-12-20 | 上海凌翼动力科技有限公司 | Mobile phone password protection system based on hidden code identification and hidden transformation |
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| JPH1063411A (en) * | 1996-08-13 | 1998-03-06 | Nippon Telegr & Teleph Corp <Ntt> | Portable information processing terminal |
| CN1177764A (en) * | 1997-07-31 | 1998-04-01 | 梁忠民 | Mask type cipher-code input method and apparatus thereof |
| JPH10124178A (en) * | 1996-10-15 | 1998-05-15 | Olympus Optical Co Ltd | Electronic main terminal, method for processing the same, and its medium |
| CN1424643A (en) * | 2003-01-08 | 2003-06-18 | 无敌科技(西安)有限公司 | Handwriting encrypting method and device thereof |
| CN1484785A (en) * | 2001-01-10 | 2004-03-24 | 索尼公司 | Information processing terminal |
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2004
- 2004-07-27 CN CNB2004100201632A patent/CN1320430C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1063411A (en) * | 1996-08-13 | 1998-03-06 | Nippon Telegr & Teleph Corp <Ntt> | Portable information processing terminal |
| JPH10124178A (en) * | 1996-10-15 | 1998-05-15 | Olympus Optical Co Ltd | Electronic main terminal, method for processing the same, and its medium |
| CN1177764A (en) * | 1997-07-31 | 1998-04-01 | 梁忠民 | Mask type cipher-code input method and apparatus thereof |
| CN1484785A (en) * | 2001-01-10 | 2004-03-24 | 索尼公司 | Information processing terminal |
| CN1424643A (en) * | 2003-01-08 | 2003-06-18 | 无敌科技(西安)有限公司 | Handwriting encrypting method and device thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102483784A (en) * | 2009-08-27 | 2012-05-30 | 讯宝科技公司 | Systems and methods for pressure-based authentication of a signature on a touch screen |
| CN102483784B (en) * | 2009-08-27 | 2015-05-13 | 讯宝科技公司 | Systems and methods for pressure-based authentication of a signature on a touch screen |
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| Publication number | Publication date |
|---|---|
| CN1598750A (en) | 2005-03-23 |
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