CN104021011A - Program upgrading system and method for embedded device - Google Patents
Program upgrading system and method for embedded device Download PDFInfo
- Publication number
- CN104021011A CN104021011A CN201410195964.6A CN201410195964A CN104021011A CN 104021011 A CN104021011 A CN 104021011A CN 201410195964 A CN201410195964 A CN 201410195964A CN 104021011 A CN104021011 A CN 104021011A
- Authority
- CN
- China
- Prior art keywords
- microprocessor
- application program
- embedded device
- unit
- aku
- 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
Abstract
The invention provides a program upgrading system for an embedded device. The embedded device comprises a microprocessor provided with a built-in start loading unit. The microprocessor further comprises a customized start loading unit and an address verification unit. The customized start loading unit is created by the built-in start loading unit before the embedded device leaves a factory and used for writing a first verification mark into a preset address of a flash memory of the microprocessor when the embedded device starts. The address verification unit is used for reading the first verification mark in the preset address of the flash memory after an application program of the microprocessor starts, and enabling the microprocessor to implement the application program when the first verification mark is coincident with a second verification mark in the application program. The invention further provides a corresponding method. The customized start loading unit writes the verification mark into the preset address of the flash memory and verification is carried out through the verification mark of the preset address before the application program is implemented so that the piracy behavior in the upgrading process can be effectively avoided.
Description
Technical field
The present invention relates to embedded device field, more particularly, relate to a kind of embedded device program upgrade system and method.
Background technology
Along with scientific and technical development, embedded device is widely used.Embedded device is mainly comprised of flush bonding processor, associated support hardware and embedded software system, and can work independently, and it is application-centered, is particularly suitable for requiring in real time and multitask occasion.Because embedded device has, volume is little, performance is strong, low in energy consumption, reliability is high and the outstanding feature of Industry-oriented application, has been widely used at present the every field such as consumer electronics, network service, Industry Control.
For promoting the performance of embedded device or increasing systemic-function, often need the software of embedded device to upgrade (firmware upgrade), upgrade the application program in embedded device.For guaranteeing safety and reliability, the at present software upgrading of embedded device is conventionally in the following ways: in update software downloading process, use parity checking method to be encrypted update software, and use the password locking JTAG mouth that flush bonding processor carries to prevent from illegally reading.
Yet, although the safety practice adopting in above-mentioned software upgrading mode is reliable, cannot avoid occurring copy right piracy when embedded device upgrade applications; Even if manufacturer's upgrading also needs to input a lot of password, if carry out typical products in mass production upgrading, just waste a lot of time, not easy to operate.
Summary of the invention
The technical problem to be solved in the present invention is, the problem that has copy right piracy and lose time for above-mentioned embedded device program upgrade provides a kind of new embedded device program upgrade system and method.
The technical scheme that the present invention solves the problems of the technologies described above is, a kind of embedded device program upgrade system is provided, described embedded device comprises having the microprocessor that carries start-up loading unit, described microprocessor also comprises custom starting loading unit, address validation unit, wherein: described custom starting loading unit is by carrying that start-up loading unit creates before embedded device dispatches from the factory and identifying for write the first checking to the default address of the flash memory of this microprocessor when embedded device starts; Described address validation unit for reading the first checking sign of the default address of flash memory after starting in microprocessor applications program, and makes described microprocessor executive utility when this first checking sign is consistent with the checking of second in application program sign.
In embedded device program upgrade system of the present invention, described program upgrade system also comprises and is arranged in AKU syndrome unit, the AKU burning subelement that the AKU of host computer issues unit and is positioned at custom starting loading unit, wherein: described host computer is connected with microprocessor communication; Described AKU issues unit and for application programs AKU, carries out being handed down to after CRC check the microprocessor of embedded device; Described AKU syndrome unit is for carrying out CRC check to described application program updating bag; Described AKU burning subelement for the unit verification of AKU syndrome by after described application program updating bag is burnt to the flash memory of microprocessor.
In embedded device program upgrade system of the present invention, described custom starting loading unit also comprises AKU request subelement, described AKU request subelement is for when AKU syndrome unit verification AKU mistake, and request host computer resends application program updating bag.
In embedded device program upgrade system of the present invention, described program upgrade system also comprises the program verification unit that is positioned at host computer, described program verification unit for after the burning of AKU burning subelement completes, read microprocessor flash memory application program and the application program reading and the application program updating bag that issues are compared, and after comparison is consistent, confirm that application program updating completes.
In embedded device program upgrade system of the present invention, described program upgrade system also comprises the miscue unit that is positioned at host computer, and described miscue unit is pointed out burning failure when more inconsistent than application programs and the application program updating bag that issues in described program verification unit.
The present invention also provides a kind of embedded device programme upgrade method, and described embedded device comprises the microprocessor with the boot loader of carrying, and the method comprises the following steps:
(a) described embedded device carries boot loader by microprocessor before dispatching from the factory and custom starting loading procedure is burnt in the flash memory of described microprocessor;
(b) described custom starting loading procedure default address to described flash memory when embedded device starts writes the first checking sign;
(c) described microprocessor reads the first checking sign in the default address of flash memory after application program launching, and identifies executive utility when consistent in this first checking sign and the checking of second in application program.
In embedded device programme upgrade method of the present invention, described step (b) comprises afterwards:
(d) host computer application programs AKU carries out being handed down to after CRC check the microprocessor of embedded device;
(e) microprocessor of described embedded system carries out CRC check by custom starting loading procedure to described application program updating bag, and verification by after described application program updating bag is burnt in the flash memory of microprocessor.
In embedded device programme upgrade method of the present invention, described step (e) also comprises: described custom starting loading procedure is when described application program updating bag check errors, and request host computer resends application program updating bag.
In embedded device programme upgrade method of the present invention, described step (e) comprises afterwards: described host computer reads the application program in the flash memory of microprocessor and the application program reading and the application program updating bag issuing are compared, and after comparison is consistent, confirms that application program updating completes.
In embedded device programme upgrade method of the present invention, described step (e) comprises afterwards: when the application program of described host computer in the flash memory of the microprocessor reading is inconsistent with the application program updating bag issuing, point out burning failure.
Embedded device program upgrade system of the present invention and method, by custom starting loading procedure the default address of flash memory write verification sign and before application program is carried out the checking by above-mentioned default address identify and verify, can effectively avoid embedded device copy right piracy during upgrading.In addition, the present invention, also by the contrast of reading back of CRC check and burning program, improves the accuracy of application program updating greatly.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of embedded device program upgrade system the first embodiment of the present invention.
Fig. 2 is the schematic diagram of embedded device program upgrade system the second embodiment of the present invention.
Fig. 3 is the schematic diagram of embedded device programme upgrade method the first embodiment of the present invention.
Fig. 4 is the schematic diagram of embedded device programme upgrade method the second embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, it is the schematic diagram of embedded device program upgrade system embodiment of the present invention, its for realize embedded device program upgrade (comprise the upgrading before dispatching from the factory and dispatch from the factory after upgrading), and above-mentioned embedded device comprises having the microprocessor 10 that carries start-up loading unit 11.In the present embodiment, the microprocessor 10 of embedded device also comprises custom starting loading unit 12 and address validation unit 13, and above-mentioned start-up loading unit 11, custom starting loading unit 12 and the address validation unit 13 of carrying realized by the program operating in microprocessor 10.
Carry start-up loading unit 11 and carry out its boot loader carrying (being the Bootloader program that microprocessor 10 carries) realization by microprocessor 10, the above-mentioned boot loader carrying is stored in microprocessor ROM, and its production firm's burning by microprocessor 10 completes.
Custom starting loading unit 12 is carried out custom starting loading procedure (the Bootloader program of being worked out by embedded device manufacturer) by microprocessor 10 and is realized, this custom starting loading procedure is stored in the flash memory (Flash) of microprocessor 10, and creates before embedded device dispatches from the factory by carrying start-up loading unit 11.This custom starting loading unit 12 writes the first checking sign for the default address (this address can be specified arbitrarily by embedded device manufacturer, and the default address of distinct device can be different) to the flash memory of this microprocessor 10 when embedded device starts.
Address validation unit 13 identifies (by custom starting loading unit 12, when embedded device starts, being write) for read the first checking of the default address of flash memory when microprocessor 10 starts application program, and makes microprocessor executive utility when this first checking sign is consistent with the checking of second in application program sign.If above-mentioned the second checking sign is inconsistent with the first checking sign, or the second checking sign do not exist, and this application program be piracy, and microprocessor 10 is not carried out this application program.
Above-mentioned embedded device program upgrade system, program is divided into boot loader and application program, and user can only upgrade applications, it by being increased in the operation of flash memory write checking sign in boot loader, thereby application program only has supporting could the upgrading or use of boot loader with embedded device manufacturer, can effectively prevent pirate program.
This embedded device program upgrade system, except upgrading before the dispatching from the factory of above-mentioned embedded device manufacturer, also can comprise the upgrading after dispatching from the factory.Now, as shown in Figure 2, in the second embodiment of embedded device program upgrade system of the present invention, upgrade-system also comprises and is arranged in AKU syndrome unit 511, the AKU burning subelement 512 that the AKU of host computer 20 issues unit 21 and is positioned at the custom starting loading unit 51 of microprocessor 50, wherein host computer 20 is connected with microprocessor 50 communications, and AKU issues unit 21, AKU syndrome unit 511, AKU burning subelement 512 and realized by the software operating on corresponding hardware.
AKU issues unit 21 and for application programs AKU, carries out being handed down to after CRC check the microprocessor 50 of embedded device; AKU syndrome unit 511 carries out CRC check (using the CRC check code that issues unit 21 from AKU) for the application program updating bag to from host computer 20; AKU burning subelement 512 for 511 verifications of AKU syndrome unit by after application program updating bag is burnt to the flash memory of microprocessor 10.By AKU, issue the upgrading (being the software upgrading after embedded device dispatches from the factory) that the application program of embedded device can be realized in unit 21, AKU syndrome unit 511, AKU burning subelement 512.
With respect to parity check system, CRC check can effectively improve the correctness of burning program process data.
Above-mentioned custom starting loading unit 51 also can comprise AKU request subelement 513, and this AKU request subelement 513 is for when the AKU syndrome unit 511 verification AKU mistake, and request host computer 20 resends application program updating bag.Like this, can when makeing mistakes, host computer 20 and microprocessor 50 communications carry out automatic AKU re-transmission.
In addition, said procedure upgrade-system also can comprise the program verification unit 22 that is positioned at host computer 20, this program verification unit 22 is for reading the application program (being the application program of new burning) of the flash memory of microprocessor 10 after completing in 512 burnings of AKU burning subelement and the application program reading and the application program updating bag issuing being compared, and confirmation application program updating completes after comparison is consistent.Correspondingly, in host computer 20, also can comprise a miscue unit 23, when this miscue unit 23 is inconsistent with the application program updating bag that issues for the application program of the 22 comparison burnings in program verification unit, point out burning failure.
By the contrast of reading back after completing in application program burning, can further improve the correctness of burning process, the probability of burning mistake is reduced to and approaches 0%.
As shown in Figure 3, the present invention also provides a kind of embedded device programme upgrade method, and wherein embedded device comprises the microprocessor with the boot loader of carrying, and the method comprises the following steps:
Step S31: the boot loader carrying by microprocessor before embedded device dispatches from the factory (be the Bootloader program that chip carries, be stored in the ROM of microprocessor) is burnt to custom starting loading procedure (the Bootloader program of being write by embedded device manufacturer) in the flash memory of microprocessor.
Step S32: custom starting loading procedure default address to the flash memory of this microprocessor when embedded device starts writes the first checking sign.
Step S33: microprocessor starts application program.
Step S34: microprocessor reads the first checking sign (step S32 writes) in the default address of flash memory, and relatively whether this first checking sign identifies consistent with the checking of second in application program.In the first checking sign and second, verify that sign performs step S36 when consistent, otherwise execution step S35.
Step S35: microprocessor stops the startup of application program.
Step S36: microprocessor executive utility.
Embedded device programme upgrade method of the present invention, except manufacturer upgrades, also can comprise customer upgrade, and as shown in Figure 4, now this embedded device programme upgrade method also can comprise the following steps:
Step S41: host computer application programs AKU carries out being handed down to after CRC check the microprocessor of embedded device.
Step S42: the microprocessor of embedded system carries out CRC check (using the CRC check code that issues unit 21 from AKU) by custom starting loading procedure to the application program updating bag receiving from host computer.
Step S43: according to result of calculation, judge whether that checking is correct, and when checking is correct, perform step S45, otherwise execution step S44.
Step S44: custom starting loading procedure request host computer resends application program updating bag, and returns to step S41.
Step S45: application program updating bag is burnt in the flash memory of microprocessor.
Step S46: host computer reads the application program in the flash memory of microprocessor and the application program reading and the application program updating bag issuing are compared, and performs step S49 when comparison is consistent, otherwise execution step S48.
Step S48: prompting burning failure.
Step S49: confirm that application program updating completes.
The above; be only the present invention's embodiment preferably, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. an embedded device program upgrade system, described embedded device comprises having the microprocessor that carries start-up loading unit, it is characterized in that: described microprocessor also comprises custom starting loading unit, address validation unit, wherein: described custom starting loading unit is by carrying that start-up loading unit creates before embedded device dispatches from the factory and identifying for write the first checking to the default address of the flash memory of this microprocessor when embedded device starts; Described address validation unit for reading the first checking sign of the default address of flash memory after starting in microprocessor applications program, and makes described microprocessor executive utility when this first checking sign is consistent with the checking of second in application program sign.
2. embedded device program upgrade system according to claim 1, it is characterized in that: described program upgrade system also comprises and be arranged in AKU syndrome unit, the AKU burning subelement that the AKU of host computer issues unit and is positioned at custom starting loading unit, wherein: described host computer is connected with microprocessor communication; Described AKU issues unit and for application programs AKU, carries out being handed down to after CRC check the microprocessor of embedded device; Described AKU syndrome unit is for carrying out CRC check to described application program updating bag; Described AKU burning subelement for the unit verification of AKU syndrome by after described application program updating bag is burnt to the flash memory of microprocessor.
3. embedded device program upgrade system according to claim 2, it is characterized in that: described custom starting loading unit also comprises AKU request subelement, described AKU request subelement is for when AKU syndrome unit verification AKU mistake, and request host computer resends application program updating bag.
4. embedded device program upgrade system according to claim 2, it is characterized in that: described program upgrade system also comprises the program verification unit that is positioned at host computer, described program verification unit for after the burning of AKU burning subelement completes, read microprocessor flash memory application program and the application program reading and the application program updating bag that issues are compared, and after comparison is consistent, confirm that application program updating completes.
5. embedded device program upgrade system according to claim 4, it is characterized in that: described program upgrade system also comprises the miscue unit that is positioned at host computer, described miscue unit is pointed out burning failure when more inconsistent than application programs and the application program updating bag that issues in described program verification unit.
6. an embedded device programme upgrade method, described embedded device comprises the microprocessor with the boot loader of carrying, and it is characterized in that, the method comprises the following steps:
(a) described embedded device carries boot loader by microprocessor before dispatching from the factory and custom starting loading procedure is burnt in the flash memory of described microprocessor;
(b) described custom starting loading procedure default address to described flash memory when embedded device starts writes the first checking sign;
(c) described microprocessor reads the first checking sign in the default address of flash memory after application program launching, and identifies executive utility when consistent in this first checking sign and the checking of second in application program.
7. embedded device programme upgrade method according to claim 6, is characterized in that: described step (b) comprises afterwards:
(d) host computer application programs AKU carries out being handed down to after CRC check the microprocessor of embedded device;
(e) microprocessor of described embedded system carries out CRC check by custom starting loading procedure to described application program updating bag, and verification by after described application program updating bag is burnt in the flash memory of microprocessor.
8. embedded device programme upgrade method according to claim 7, it is characterized in that: described step (e) also comprises: described custom starting loading procedure is when described application program updating bag check errors, and request host computer resends application program updating bag.
9. embedded device programme upgrade method according to claim 7, it is characterized in that: described step (e) comprises afterwards: described host computer reads the application program in the flash memory of microprocessor and the application program reading and the application program updating bag issuing are compared, and after comparison is consistent, confirms that application program updating completes.
10. embedded device programme upgrade method according to claim 9, is characterized in that: described step (e) comprises afterwards: when the application program of described host computer in the flash memory of the microprocessor reading is inconsistent with the application program updating bag issuing, point out burning failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410195964.6A CN104021011A (en) | 2014-05-09 | 2014-05-09 | Program upgrading system and method for embedded device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410195964.6A CN104021011A (en) | 2014-05-09 | 2014-05-09 | Program upgrading system and method for embedded device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104021011A true CN104021011A (en) | 2014-09-03 |
Family
ID=51437784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410195964.6A Pending CN104021011A (en) | 2014-05-09 | 2014-05-09 | Program upgrading system and method for embedded device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104021011A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104239215A (en) * | 2014-09-30 | 2014-12-24 | 北京奇虎科技有限公司 | Method and device for investigating useless software |
| CN104239109A (en) * | 2014-09-30 | 2014-12-24 | 上海瑞猫自动化控制技术有限公司 | Method for on-line management of embedded system firmware |
| CN107479924A (en) * | 2017-08-09 | 2017-12-15 | 四川长虹电器股份有限公司 | Software upgrading method of calibration based on android system |
| CN109189405A (en) * | 2018-07-19 | 2019-01-11 | 山东省科学院自动化研究所 | A kind of method and system of proving program Flash data consistency |
| CN109992966A (en) * | 2018-01-02 | 2019-07-09 | 华邦电子股份有限公司 | Memory sub-system, security client end device and its authentication method |
| CN110221851A (en) * | 2019-05-06 | 2019-09-10 | 万向钱潮股份有限公司 | A kind of electronic parking system program upgrade method |
| CN112184261A (en) * | 2020-09-24 | 2021-01-05 | 无锡小天鹅电器有限公司 | Household appliance and serial number burning control method, device and medium thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101615237A (en) * | 2009-08-11 | 2009-12-30 | 威盛电子股份有限公司 | Can verify embedded system and verification method thereof |
| CN101630267A (en) * | 2009-08-24 | 2010-01-20 | 中兴通讯股份有限公司 | Embedded system and control method thereof |
| CN101826027A (en) * | 2010-05-28 | 2010-09-08 | 深圳市融创天下科技发展有限公司 | Embedded system and updating method thereof |
| CN101957764A (en) * | 2010-08-02 | 2011-01-26 | 珠海许继电气有限公司 | Method for remotely updating remote terminal program |
| CN103699421A (en) * | 2014-01-08 | 2014-04-02 | 金三立视频科技（深圳）有限公司 | Method and device for upgrading embedded device system |
-
2014
- 2014-05-09 CN CN201410195964.6A patent/CN104021011A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101615237A (en) * | 2009-08-11 | 2009-12-30 | 威盛电子股份有限公司 | Can verify embedded system and verification method thereof |
| CN101630267A (en) * | 2009-08-24 | 2010-01-20 | 中兴通讯股份有限公司 | Embedded system and control method thereof |
| CN101826027A (en) * | 2010-05-28 | 2010-09-08 | 深圳市融创天下科技发展有限公司 | Embedded system and updating method thereof |
| CN101957764A (en) * | 2010-08-02 | 2011-01-26 | 珠海许继电气有限公司 | Method for remotely updating remote terminal program |
| CN103699421A (en) * | 2014-01-08 | 2014-04-02 | 金三立视频科技（深圳）有限公司 | Method and device for upgrading embedded device system |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104239215A (en) * | 2014-09-30 | 2014-12-24 | 北京奇虎科技有限公司 | Method and device for investigating useless software |
| CN104239109A (en) * | 2014-09-30 | 2014-12-24 | 上海瑞猫自动化控制技术有限公司 | Method for on-line management of embedded system firmware |
| CN107479924A (en) * | 2017-08-09 | 2017-12-15 | 四川长虹电器股份有限公司 | Software upgrading method of calibration based on android system |
| CN107479924B (en) * | 2017-08-09 | 2020-07-28 | 四川长虹电器股份有限公司 | Software upgrading verification method based on Android system |
| CN109992966A (en) * | 2018-01-02 | 2019-07-09 | 华邦电子股份有限公司 | Memory sub-system, security client end device and its authentication method |
| CN109992966B (en) * | 2018-01-02 | 2023-06-27 | 华邦电子股份有限公司 | Memory subsystem, secure client device, and authentication method thereof |
| CN109189405A (en) * | 2018-07-19 | 2019-01-11 | 山东省科学院自动化研究所 | A kind of method and system of proving program Flash data consistency |
| CN109189405B (en) * | 2018-07-19 | 2022-03-01 | 山东省科学院自动化研究所 | Method and system for verifying Flash data consistency of program |
| CN110221851A (en) * | 2019-05-06 | 2019-09-10 | 万向钱潮股份有限公司 | A kind of electronic parking system program upgrade method |
| CN112184261A (en) * | 2020-09-24 | 2021-01-05 | 无锡小天鹅电器有限公司 | Household appliance and serial number burning control method, device and medium thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104021011A (en) | Program upgrading system and method for embedded device | |
| CN107179909B (en) | Software upgrading method and device and computer readable storage medium | |
| CN106325929B (en) | Firmware upgrading method, firmware upgrading device, refrigerator and server | |
| CN100570558C (en) | A kind of chip firmware updating method | |
| CN108196878B (en) | Method and device for generating application program installation package, electronic equipment and storage medium | |
| EP2195737B1 (en) | Method for reprogramming applications in embedded devices and related device | |
| US20100169709A1 (en) | System Of Updating Firmware And Method Thereof, And Method Of Creating Firmware | |
| CN109358887B (en) | On-line upgrading method, device and system for single chip microcomputer program | |
| US9582262B2 (en) | Systems and methods for installing upgraded software on electronic devices | |
| TWI533216B (en) | Operating system updating method | |
| CN104199706A (en) | Firmware upgrade method and device for eMMC | |
| KR102358470B1 (en) | Boot loader update firmware, method for updating boot loader | |
| US20140201726A1 (en) | Updating firmware compatibility data | |
| CN102667716A (en) | Methods and devices for updating firmware of a component using a firmware update application | |
| CN104007996A (en) | Reliable firmware upgrading realizing method for distributed control system | |
| EP2456257A1 (en) | Method and system for upgrading wireless data card | |
| WO2020062887A1 (en) | Firmware upgrading method and system based on flash micro-controller, and flash micro-controller | |
| CN111813428A (en) | Method and device for upgrading terminal firmware, electronic equipment and storage medium | |
| CN104407878A (en) | On-line upgrading method of C6000 digital signal processor | |
| CN101505331A (en) | Method and apparatus for updating system software of smart phone | |
| CN104133743B (en) | A kind of by burning file to the method for EMMC chip and device | |
| CN105677409A (en) | System upgrading method and device | |
| CN102937902A (en) | Method and device for installing driver | |
| WO2021012170A1 (en) | Firmware booting method and device, and computer-readable storage medium | |
| CN106445504A (en) | Update method and system of mobile terminal device driver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140903 |