CN102582268A - Microcontroller, algorithm protection method of microcontroller, storage chip with microcontroller, consumable container and imaging equipment - Google Patents
Microcontroller, algorithm protection method of microcontroller, storage chip with microcontroller, consumable container and imaging equipment Download PDFInfo
- Publication number
- CN102582268A CN102582268A CN2012100186571A CN201210018657A CN102582268A CN 102582268 A CN102582268 A CN 102582268A CN 2012100186571 A CN2012100186571 A CN 2012100186571A CN 201210018657 A CN201210018657 A CN 201210018657A CN 102582268 A CN102582268 A CN 102582268A
- Authority
- CN
- China
- Prior art keywords
- microcontroller
- arithmetic expression
- algorithm
- operation result
- memory cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention provides an algorithm protection method of a microcontroller. The microcontroller comprises a control unit and a storage unit connected with the control unit; the storage unit comprises an algorithm region and an encryption region; the algorithm region is used for storing N groups of arithmetic expressions, wherein N is a positive integer; the encryption region is used for storing operation results of M groups of arithmetic expressions in the N groups of arithmetic expressions; the M groups of arithmetic expressions in the algorithm region are replaced with the operation results, wherein M is a positive integer less than N; and when executing the N groups of arithmetic expressions, the microcontroller reads the operation results from the encryption region to continuously execute. The invention also provides the microcontroller, a storage chip comprising the microcontroller, a consumable container and imaging equipment. After the microcontroller is adopted, algorithm information in the microcontroller can be effectively prevented from being improperly acquired.
Description
Technical field
The present invention relates generally to a kind of microcontroller and algorithm guard method thereof; Specifically; Relate to a kind of microcontroller and be used for guard method, the invention still further relates to storage chip, consumable container and imaging device with above-mentioned microcontroller to the microcontroller algorithm.
Background technology
The said imaging device of the present invention is meant electrical signal conversion such as literal, patterns on media such as paper, forming the equipment of visual image, for example printer, duplicator, facsimile machine and the all-in-one multifunctional machine of ink-jet approaches or laser class.Two kinds of printers commonly used are ink-jet printer and laser printer, and ink-jet printer uses the print cartridge that accommodates ink to printer the ink of printing usefulness to be provided as consumable container, needs literal or the pattern printed with formation on paper; Laser printer then uses the cartridge that accommodates carbon dust as consumable container the carbon dust of printing usefulness to be provided to printer; With literal or the pattern that formation on medium need be printed, the image-forming principle of duplicator, facsimile machine and all-in-one multifunctional machine, use consumable container etc. are basic identical with printer.The said consumptive material of the present invention is meant ink or carbon dust.
Microcontroller is called for short MCU, is that the major part with microcomputer is integrated in a single-chip microcomputer on the chip.Along with science and technology development; Its cost is more and more lower, and performance is more and more powerful, therefore; MCU is widely used in every field, as: Electric Machine Control, bar-code reader or scanner, consumer electronics, phone, Industry Control and automation, building safety and gate inhibition's control etc.MCU also is usually used in above-mentioned consumptive material product scope, has MCU mostly in the storage chip on the existing consumable container, and is as shown in Figure 1; This storage chip all has a pcb board, and electronic module is installed on pcb board, includes interconnected communication part and integrated circuit part in the electronic module; Communication part is used to receive imaging device signal and electric energy; MCU can be used as the integrated circuit part, and its structure is referring to Fig. 2, and the memory cell among the MCU comprises frequently-used data district and algorithm district; The data field is used for storing the data that the data relevant with consumable container, the imaging device course of work produce; Comprise: imaging device model, producer's code, date of manufacture, characterisitic parameter, consumable items allowance, consume number of pages, initial print time etc., whether available the algorithm district be used to store this storage chip of verification algorithm information, and algorithm information is made up of arithmetic expression more than a group or two groups; The consumable container of different model, the algorithm information in its memory cell is different; MCU also can be as just the control module of integrated circuit part, and the outer memory cell of memory cell wherein and MCU is used to store above-mentioned data and algorithm information.Because above-mentioned algorithm information need spend designer's great amount of time and self valuable experience can draw; Be designer's intellectual achievement,, can bring tremendous loss to the designer in case above-mentioned algorithm information leaks inadequately; Thus, need protect the data among the MCU.
Algorithm information in MCU is obtained inadequately; MCU data guard method commonly used is through password or AES being set with protected data in MCU, protecting algorithm wherein as all having adopted AES among existing chip Atmel, Microchip, the TI, and this method can realize protection to a certain extent to the algorithm information among the MCU; Yet be easy to be cracked; In case data are wherein carried out the dis-assembling analysis, and its password or AES are then obtained, can not realize effectively protection to the MCU algorithm information; In order to strengthen the difficulty that cracks; The designer often needs the constantly various complicated algorithm of design, causes production cost to raise, and makes the MCU structure complicated simultaneously.
Summary of the invention
Main purpose of the present invention provides a kind of method that algorithm information is illegally accessed in the microcontroller of effectively avoiding, to remedy the deficiency of above-mentioned prior art.
For realizing above-mentioned purpose; The present invention provides the guard method of a kind of microcontroller algorithm, and this microcontroller comprises control module and the memory cell that is connected with control module, comprises algorithm district and encrypted area in the memory cell; The algorithm district is used to store N group arithmetic expression; Wherein N is a positive integer, and encrypted area is used for storing the operation result that N organizes the M group arithmetic expression of arithmetic expression, and the M group arithmetic expression in the algorithm district is replaced by operation result; When the N in the control module execution algorithm district organizes arithmetic expression, from encrypted area, read this operation result to continue execution.
Visible by last scheme, because this method is organized the operation result that arithmetic expression is replaced by this group arithmetic expression with the M in the algorithm district, when control module is carried out algorithm instruction wherein in proper order; From encrypted area, read the corresponding operation result of this group arithmetic expression to continue execution command; Step relevant with this group arithmetic expression in the algorithm district is expressed as its operation result, therefore, even crack methods such as employing dis-assemblings; Can not obtain the complete algorithm information in the microcontroller; Strengthen the difficulty that cracks greatly, avoided the algorithm information in the microcontroller to be obtained irrelevantly, thereby protected algorithm information wherein effectively.
Its further technical scheme is, N group arithmetic expression is the loop computation formula, and initial step in this loop computation formula and follow-up consecutive steps thereof are operation result.
Occur because the arithmetic expression in the algorithm information can be circulation, the computing variable of this arithmetic expression in circulation each time is identical, but arithmetic expression is different; Therefore, the operation result of each circulation might be different, utilize These characteristics; The initial step of loop computation formula and follow-up consecutive steps are omitted, replaced with its operation result, so; Even other people have obtained the arithmetic expression in the memory cell irrelevantly; But can't obtain complete algorithm information, can not obtain all arithmetic expressions through the mode of dis-assembling, effectively protect algorithm information.
Its further technical scheme be, N group arithmetic expression is non-loop computation formula, the arbitrary steps in this acyclic arithmetic expression is an operation result.
Visible by last scheme, to not being the arithmetic expression that circulation occurs, owing to not having continuity between the arithmetic expression continuous before and after it; Adopt respectively arbitrary steps wherein to replace with the mode of its operation result, make to be expressed as partial arithmetic formula and partial arithmetic result in the algorithm district, other people can't obtain complete operation information; Even adopt the method for dis-assembling; Also can't derive the abridged arithmetic expression, therefore, effectively realize the protective effect of algorithm information.
Another object of the present invention provides a kind of microcontroller; This microcontroller comprises control module and the memory cell that is connected with control module, comprises algorithm district and encrypted area in this memory cell, and the algorithm district is used to store N group arithmetic expression; Wherein N is a positive integer; Encrypted area is used for storing the operation result that N organizes the M group arithmetic expression of arithmetic expression, and wherein M is the positive integer less than N, and the M group computing information in the algorithm district is this operation result.
Visible by last scheme; Through being replaced with its operation result, the group of the M in algorithm district arithmetic expression representes; Strengthened the difficulty that cracks, even adopt the mode of dis-assembling to crack the algorithm in the microcontroller, the complete arithmetic expression information in also can't the acquisition algorithm district; Thereby avoided the algorithm in the microcontroller to be obtained, effectively protected the algorithm information of microcontroller by improper.
Another purpose of the present invention provides a kind of storage chip, and this storage chip comprises aforesaid microcontroller.
Because in the microcontroller in this storage chip, M group arithmetic expression is replaced by its operation result, other people are difficult to crack mode through dis-assembling etc. and obtain its content, thereby effectively protect the algorithm of microcontroller.
Another purpose of the present invention provides a kind of consumable container, comprises housing, and housing surrounds the cavity that holds consumptive material, on the outer wall of housing storage chip is installed, and comprises aforesaid microcontroller on this storage chip.
This programme provides the storage chip that comprises above-mentioned microcontroller has been installed on the consumable container, therefore, even adopt the mode of dis-assembling to crack its content, also is difficult to obtain the complete content in this microcontroller, thus the algorithm of the microcontroller of effectively protecting.
Another purpose of the present invention provides a kind of imaging device, comprises image-generating unit and consumable container, and storage chip is installed on the consumable container, comprises aforesaid microcontroller on this storage chip.
The set storage chip of consumable container has the as above structure of microcontroller on the imaging device; Strengthened the difficulty that cracks content in the microcontroller; Even adopt the mode of dis-assembling; Also can't obtain all the arithmetic expression contents in the microcontroller, therefore, can effectively protect the algorithm in the microcontroller.
Description of drawings
Fig. 1 is the logical construction sketch map of existing storage chip.
Fig. 2 is the logical construction sketch map of existing microcontroller.
Fig. 3 is the logical construction sketch map of the present invention's microcontroller.
Fig. 4 is the logical construction sketch map of the present invention's storage chip.
Fig. 5 is the sketch map of cartridge embodiment of the present invention.
Fig. 6 is the sketch map of printer embodiment of the present invention.
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
The specific embodiment
Microcontroller algorithm guard method embodiment
Referring to Fig. 3, microcontroller comprises control module and the memory cell that is connected with this control module, comprises algorithm district, data field and encrypted area in the memory cell; Wherein: the algorithm district is used to store N group arithmetic expression, and N is a positive integer, and the data field is used to store and imaging device model and the relevant data of imaging work; Encrypted area is used for storing the operation result that N organizes the M group arithmetic expression of arithmetic expression, and M is the positive integer less than N, in this example; Arithmetic expression is the loop computation formula; Method is that the initial step in this loop computation formula is replaced by operation result, during instruction in the control module execution algorithm district, from encrypted area, reads operation result and carries out continuing.
For example, the algorithm information in the existing microcontroller is following:
// initialization of variable
A=0x67562301;?B=0xEFCDAB89;?C=0x98BADCFE;
D=0x10325476;?E=0xC3D2E1F0;
for?(t?=0;?t<80,?t++)
{
TMP?=S5(A)?+?ft?(B,?C,?D,?t)?+?Wt?(t)?+?Kt?(t)?+?E;
E=D;
D=C;
C=S2(B);
B=A;
A=TMP;
}
ft(B,?C,?D,?t)
{
If?t=0?then?B+C+D+t;
If?t>0?then?(B+C+D)*t;
}
……
Include N group arithmetic expression in the above-mentioned information, as: S5 (A), ft (B, C; D, t) etc., the method that present embodiment adopted is in advance with M group arithmetic expression: S5 (A), ft (B in the above-mentioned N group arithmetic expression; C, D, t) grade is calculated; Leave its operation result in encrypted area then, as: A0, B0, C0, D0, E0 are the values during t=0 in the above-mentioned algorithm information, that is:
A=A0;?B=B0;?C=C0;?D=D0;?E=E0;
Arithmetic expression in this example is the loop computation formula, circulation time each time, and variable is all identical, like ft (B; C, D, t); Variable all is B, C, D, t, yet, because the arithmetic expression in each circulation is different; Therefore it is at each circulation time, and operation result is different, and promptly the operation result during with t=1 is different during t=0.Arithmetic expression during with t=0 is calculated, and arithmetic expression relevant with t=0 in the algorithm is replaced with its operation result, and the arithmetic expression after the M group arithmetic expression in the algorithm district is replaced is following:
for?(t?=1;?t<80,?t++)
{
TMP?=S5(A)?+?ft?(B,?C,?D,?t)?+?Wt?(t)?+?Kt?(t)?+?E;
E=D;
D=C;
C=S2(B);
B=A;
A=TMP;
}
ft(B,?C,?D,?t)
{
If?t>0?then?(B+C+D)*t;
}
……
When the above-mentioned N group arithmetic expression in the control module execution algorithm district is instructed, from encrypted area, read above-mentioned operation result, i.e. the value of A0, B0, C0, D0 and E0; Result of calculation when also being t=0, the instruction when continuing to carry out set by step with t=1 then to t=79, therefore; Arithmetic expression when having omitted t=0 in the above-mentioned algorithm information; Strengthened the difficulty that cracks above-mentioned algorithm information,, also be difficult to obtain complete operation formula content even adopt the method for decompiling.
A kind of conversion as microcontroller algorithm guard method embodiment of the present invention; Can above-mentioned M group arithmetic expression be carried out the part replacement; As: the related operation formula of t=0 in the above-mentioned algorithm steps and t=1 is replaced with its operation result represent; Need only the follow-up consecutive steps that begins from the initial step of loop computation formula and be replaced respectively,, all can realize the object of the invention to guarantee the continuity of loop computation formula.
As the another kind of conversion of microcontroller algorithm guard method embodiment of the present invention, can organize acyclic arithmetic expression to M and replace, can replace any consecutive steps or discontinuous step this moment, and above-mentioned conversion all can realize the object of the invention.
Another conversion as microcontroller algorithm guard method embodiment of the present invention; Can above-mentioned operation result be arranged on data field or out of Memory district; So long as in memory cell and be different from the zone in algorithm district, above-mentioned conversion all can realize the object of the invention.
Another conversion as microcontroller algorithm guard method embodiment of the present invention can include only one group of arithmetic expression, i.e. N=1 in the algorithm district of microcontroller; When adopting this method, the part in one group of arithmetic expression is replaced with its operation result, can also comprise two or more sets arithmetic expressions; When adopting its algorithm information of this method protection; One group of arithmetic expression is replaced with its operation result, is positive integer as long as guarantee N, and M is the positive integer less than N; Be N group arithmetic expression in the algorithm district by the part replacement, above-mentioned conversion all can realize the object of the invention.
Microcontroller embodiment
Microcontroller architecture as above described in the method embodiment, comprises control module and the memory cell that is connected with this control module, comprises algorithm district, data field and encrypted area in the memory cell; Wherein: the algorithm district is used to store N group arithmetic expression; Wherein N is a positive integer, and the data field is used to store and model and the relevant data message of work, and encrypted area is used for storing the operation result that N organizes the M group arithmetic expression of arithmetic expression; Wherein M is the positive integer less than N, and the M group arithmetic expression in the algorithm district is this operation result.
Its operation principle and last embodiment are similar, repeat no more here.
As the another kind of conversion of microcontroller embodiment of the present invention, can above-mentioned operation result be arranged on data field or out of Memory district, so long as in memory cell and be different from the zone in algorithm district, above-mentioned conversion all can realize the object of the invention.
As another conversion of microcontroller embodiment of the present invention, can comprise one group of arithmetic expression in the algorithm district of microcontroller, the part in this arithmetic expression is replaced with its operation result; Can also comprise two groups or more arithmetic expression in the algorithm district of microcontroller; One group of arithmetic expression is replaced with its operation result, is positive integer as long as guarantee N, and M is the positive integer less than N; Be N group arithmetic expression in the algorithm district by the part replacement, above-mentioned conversion all can realize the object of the invention.
Storage chip embodiment
Storage chip provided by the invention is used for cartridge; Referring to Fig. 4; This storage chip comprises pcb board and is installed on the electronic module on the pcb board that electronic module comprises communication part and the integrated circuit part that is connected with communication part, adopts microcontroller as the integrated circuit part.
A kind of conversion as storage chip embodiment of the present invention; Can comprise in the control module that promising data communication provides the interface unit of agreement or interface; Perhaps with interface unit be arranged on outside the control module, within the electronic module; Interface unit is connected with control module, and above-mentioned conversion can realize the object of the invention equally.
Another kind of conversion as storage chip embodiment of the present invention; This microcontroller can also be used for the print cartridge storage chip, and at this moment, what memory cell was deposited is the data relevant with print cartridge; Its structure is similar with present embodiment with operation principle, and this conversion can realize the object of the invention equally.
Cartridge embodiment
Referring to Fig. 5, cartridge comprises housing, and this housing surrounds the cavity that holds carbon dust, on the outer wall of housing storage chip is installed, and comprises aforesaid microcontroller in this storage chip.
As a kind of conversion of cartridge embodiment of the present invention, can be print cartridge with above-mentioned storage chip, this storage chip comprises above-mentioned microcontroller.
Printer embodiment
Laser printer comprises image-generating unit and cartridge, on this cartridge storage chip is installed, and comprises aforesaid microcontroller in the storage chip, and its structure is referring to Fig. 6, and storage chip and microcontroller are not shown among Fig. 6.
As a kind of conversion of printer embodiment of the present invention, can also be other imaging devices such as duplicator or facsimile machine or all-in-one multifunctional machine etc., above-mentioned conversion can realize the object of the invention equally.
The invention is not restricted to above-mentioned each embodiment and conversion, other also should be included in the protection domain of claim of the present invention based on technical scheme of the present invention and without prejudice to the method and the combination and variation thereof of the object of the invention.
Claims (7)
1. microcontroller algorithm guard method, said microcontroller comprises
Control module;
The memory cell that is connected with said control module;
Comprise the algorithm district in the said memory cell, be used to store N group arithmetic expression, wherein N is a positive integer;
It is characterized in that:
Said memory cell also comprises encrypted area, and said encrypted area is used for storing the operation result that said N organizes the M group arithmetic expression of arithmetic expression, and wherein M is the positive integer less than N;
Said M group arithmetic expression in the said algorithm district is replaced by said operation result;
When said control module is carried out said N group arithmetic expression, from said encrypted area, read said operation result and carry out continuing.
2. microcontroller algorithm as claimed in claim 1 guard method is characterized in that:
Said N group arithmetic expression is the loop computation formula; Initial step in the said loop computation formula and follow-up consecutive steps thereof are said operation result.
3. microcontroller algorithm as claimed in claim 1 guard method is characterized in that:
Said N group arithmetic expression is non-loop computation formula, and the arbitrary steps in the said acyclic arithmetic expression is said operation result.
4. microcontroller comprises
Control module;
The memory cell that is connected with said control module;
Comprise in the said memory cell
The algorithm district is used to store N group arithmetic expression, and wherein N is a positive integer;
It is characterized in that:
Said memory cell also comprises encrypted area; Said encrypted area is used for storing the operation result that said N organizes the M group arithmetic expression of arithmetic expression, and wherein M is the positive integer less than N; Said M group arithmetic expression in the said algorithm district is said operation result.
5. storage chip comprises
Microcontroller;
Said microcontroller comprises
Control module;
The memory cell that is connected with said control module;
Comprise in the said memory cell
The algorithm district is used to store N group arithmetic expression, and wherein N is a positive integer;
It is characterized in that:
Said memory cell also comprises encrypted area; Be used in the said encrypted area storing the operation result that said N organizes the M group arithmetic expression of arithmetic expression, wherein M is the positive integer less than N; Said M group arithmetic expression in the said algorithm district is said operation result.
6. consumable container comprises housing, and said housing surrounds the cavity that holds consumptive material,
On the outer wall of said housing storage chip is installed;
It is characterized in that:
Said storage chip comprises microcontroller as claimed in claim 5.
7. imaging device comprises image-generating unit and consumable container, on the said consumable container storage chip is installed;
It is characterized in that:
Said storage chip comprises microcontroller as claimed in claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100186571A CN102582268A (en) | 2012-01-10 | 2012-01-10 | Microcontroller, algorithm protection method of microcontroller, storage chip with microcontroller, consumable container and imaging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100186571A CN102582268A (en) | 2012-01-10 | 2012-01-10 | Microcontroller, algorithm protection method of microcontroller, storage chip with microcontroller, consumable container and imaging equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102582268A true CN102582268A (en) | 2012-07-18 |
Family
ID=46471739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100186571A Pending CN102582268A (en) | 2012-01-10 | 2012-01-10 | Microcontroller, algorithm protection method of microcontroller, storage chip with microcontroller, consumable container and imaging equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102582268A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104553384A (en) * | 2014-12-25 | 2015-04-29 | 珠海艾派克微电子有限公司 | Consumable chip as well as identification method and device for serial number of consumable chip |
| CN109710310A (en) * | 2019-01-22 | 2019-05-03 | 芯海科技（深圳）股份有限公司 | For the data processing method of embedded environment, system, terminal and storage medium |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1423801A (en) * | 2000-01-18 | 2003-06-11 | 因芬尼昂技术股份公司 | Microprocessor system with encoding |
| WO2006020217A1 (en) * | 2004-08-13 | 2006-02-23 | Static Control Components | Systems and methods for universal imaging components |
| US20070153066A1 (en) * | 2005-12-30 | 2007-07-05 | Nu-Kote International, Inc. | Marking material cartridge with processor having configurable logic |
| CN101082796A (en) * | 2006-06-01 | 2007-12-05 | 珠海天威技术开发有限公司 | Intelligent chip and information processing method thereof |
| CN101178572A (en) * | 2007-11-29 | 2008-05-14 | 珠海天威技术开发有限公司 | Universal chip and satellite communication method thereof |
| CN101203859A (en) * | 2005-04-21 | 2008-06-18 | 松下电器产业株式会社 | Program illegiblizing device and method |
| CN101276309A (en) * | 2007-03-31 | 2008-10-01 | 珠海天威技术开发有限公司 | Method for ciphering, deciphering and rewriting external data memory |
| CN101416197A (en) * | 2006-02-06 | 2009-04-22 | 松下电器产业株式会社 | Program obfuscator |
| CN201707552U (en) * | 2009-07-17 | 2011-01-12 | 珠海艾派克微电子有限公司 | Storage chip on imaging box for imaging device |
-
2012
- 2012-01-10 CN CN2012100186571A patent/CN102582268A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1423801A (en) * | 2000-01-18 | 2003-06-11 | 因芬尼昂技术股份公司 | Microprocessor system with encoding |
| WO2006020217A1 (en) * | 2004-08-13 | 2006-02-23 | Static Control Components | Systems and methods for universal imaging components |
| CN101203859A (en) * | 2005-04-21 | 2008-06-18 | 松下电器产业株式会社 | Program illegiblizing device and method |
| US20070153066A1 (en) * | 2005-12-30 | 2007-07-05 | Nu-Kote International, Inc. | Marking material cartridge with processor having configurable logic |
| CN101416197A (en) * | 2006-02-06 | 2009-04-22 | 松下电器产业株式会社 | Program obfuscator |
| CN101082796A (en) * | 2006-06-01 | 2007-12-05 | 珠海天威技术开发有限公司 | Intelligent chip and information processing method thereof |
| CN101276309A (en) * | 2007-03-31 | 2008-10-01 | 珠海天威技术开发有限公司 | Method for ciphering, deciphering and rewriting external data memory |
| CN101178572A (en) * | 2007-11-29 | 2008-05-14 | 珠海天威技术开发有限公司 | Universal chip and satellite communication method thereof |
| CN201707552U (en) * | 2009-07-17 | 2011-01-12 | 珠海艾派克微电子有限公司 | Storage chip on imaging box for imaging device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104553384A (en) * | 2014-12-25 | 2015-04-29 | 珠海艾派克微电子有限公司 | Consumable chip as well as identification method and device for serial number of consumable chip |
| CN109710310A (en) * | 2019-01-22 | 2019-05-03 | 芯海科技（深圳）股份有限公司 | For the data processing method of embedded environment, system, terminal and storage medium |
| CN109710310B (en) * | 2019-01-22 | 2023-08-18 | 芯海科技（深圳）股份有限公司 | Data processing method, system, terminal and storage medium for embedded environment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101906089B1 (en) | Protecting data in memory of a consumable product | |
| US9094557B2 (en) | Print system for placing restrictions on the use of scanned data | |
| CN103530668A (en) | Part tracing method and part identifying method | |
| CN101894285A (en) | Radio frequency chip, consumable material container, data writing method and verifying method | |
| JP2006345017A (en) | Method, unit, and program for processing image, and recording medium | |
| JP5287485B2 (en) | Information expression image, printed matter, image processing apparatus, and image processing program | |
| RU2612947C1 (en) | Crum unit mounted on of the images forming device service unit and dismounted from it, and using it images forming device | |
| CN103069393B (en) | Central authorities' process arithmetic unit and abnormality detection method | |
| CN102582268A (en) | Microcontroller, algorithm protection method of microcontroller, storage chip with microcontroller, consumable container and imaging equipment | |
| CN201456574U (en) | Label printer capable of identifying consumptive material information | |
| CN101980133A (en) | Method and system for detecting text selection region deviation of double-layer electronic file | |
| CN103963472A (en) | Chip resetting method and device | |
| CN103085488A (en) | Chip resetting method | |
| JP2015104893A (en) | Printer | |
| JP2009160832A (en) | Printer, multifunctional machine, and printing control method | |
| CN202517844U (en) | Storage chip, consumable container and imaging equipment | |
| CN203490737U (en) | A data management system | |
| JP2008269140A (en) | Printed matter, print method and print program | |
| CN103358705B (en) | Consumable container and the means of communication that the equipment of consumable container can be installed | |
| CN106945406A (en) | The operating method of consumable chip, consumable chip, consumable container, consumptive material equipment | |
| JP2004206322A (en) | Two dimensional code processing method | |
| JP5592234B2 (en) | Two-dimensional code generation device, two-dimensional code reading device, two-dimensional code, two-dimensional code generation method, two-dimensional code reading method, and program | |
| JP2011181999A (en) | Printing method, composite machine, and printing system | |
| JP2015212963A (en) | Bar code instruction generation device | |
| JP5784764B2 (en) | Barcode instruction generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120718 |