CN102722376B - Method for secondary encoding and decoding based on video monitoring drawing and device thereof - Google Patents
Method for secondary encoding and decoding based on video monitoring drawing and device thereof Download PDFInfo
- Publication number
- CN102722376B CN102722376B CN201210209788.8A CN201210209788A CN102722376B CN 102722376 B CN102722376 B CN 102722376B CN 201210209788 A CN201210209788 A CN 201210209788A CN 102722376 B CN102722376 B CN 102722376B
- Authority
- CN
- China
- Prior art keywords
- platform
- code stream
- api
- self
- com interface
- 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.)
- Active
Links
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
The invention discloses a method for secondary encoding and decoding based on video monitoring drawing, which comprises the following steps: capturing a system drawing application programming interface (API) or a COM interface to be called by a software development kit (SDK) of a first platform; calling a customized drawing function to replace the captured system drawing API or COM interface by an interface replacement library, wherein the statement format of the customized drawing function should be identical to that of the captured system drawing API or COM interface; determining a target window to capture a code stream and extracting the code stream sent to the first platform of the determined target window by the customized drawing function; and sending the captured code stream of the first platform to a gateway, performing the secondary encoding and decoding to form a code stream of a second platform and sending the code stream to the second platform. The invention further discloses a device for the secondary encoding and decoding based on video monitoring drawing, which comprises a capturing module, a replacement module, an extracting module and a sending module corresponding to the steps of the method for the secondary encoding and decoding based on the video monitoring drawing respectively.
Description
Technical field
The application relates to a kind of secondary coding-decoding method based on video monitoring drawing and device thereof, particularly relates in field of video monitoring based on the secondary coding-decoding method of video monitoring drawing and device thereof.
Background technology
Current, when carrying out the platform of different vendor (hereinafter referred to as different platform in video monitoring system, and so-called platform comprises hardware and runs on software on this hardware here) interconnected time, the cut-in method of view data normally provides SDK(SDK (Software Development Kit) by a manufacturer) code stream of the platform of this manufacturer is adjusted back to the equipment of another manufacturer, wherein, the code stream of readjustment has three kinds of forms usually: 1, decoded source code flow, data volume is too large, be unfavorable for Internet Transmission, must change; 2, the privately owned code stream of outer manufacturer before decoding, can not change, but needs the demoder calling outer manufacturer provide at user side to decode; 3, the standard code stream before decoding, need not change, can directly support.
Fig. 1 illustrates the schematic diagram that in a kind of video monitoring system of prior art, different platform is interconnected.As shown in fig. 1, the video monitoring system of prior art such as comprises A platform 1, A platform SDK 3, B platform access gateway (hereinafter referred to as gateway) 4 and B platform 6.When A platform 1 carries out interconnected with B platform 6, A platform SDK 3 adjusts back the code stream of A platform (hereinafter referred to as A code stream) 2 to gateway 4, gateway 4 converts the code stream (hereinafter referred to as B code stream) 5 of B platform to after A code stream 2 is carried out secondary coding-decoding, thus can output to B platform 6.
The interconnected method of different platform shown in Fig. 1 is the typical common method of one that in current video monitoring system, different platform is interconnected.But, because video monitoring equipment is without general industry standard, the SDK that some manufacturer provides does not have code stream to obtain interface, but the Image Rendering directly its platform exported to the window of display device (hereinafter referred to as window, not shown, and window here comprises indicator gate and corresponds to the software module of this indicator gate) on, namely directly to draw on window, thus it is interconnected to cause other platforms cannot carry out with it.Such as, A platform 1 does not provide code stream to adjust back, and B platform 6 just cannot access the code stream of A platform 1.
Summary of the invention
In order to solve the problems of the technologies described above, this application provides a kind of secondary coding-decoding method of drawing based on video monitoring, comprising: the SDK intercepting and capturing the first platform intends the system drawing API that calls or com interface; Replace storehouse by interface, call self-defined drawing function to replace intercepted and captured system drawing API or com interface, the assertion format of wherein said self-defined drawing function should be consistent with the assertion format of intercepted and captured system drawing API or com interface; Determine the target window will catching code stream, and extract the code stream of the first platform mailing to determined target window by described self-defined drawing function; And the code stream of the first caught platform is sent to gateway, become the code stream of the second platform after secondary coding-decoding, and send to described second platform.
By Detours, call described self-defined drawing function and replace intercepted and captured system drawing API or com interface.
Replace storehouse by described interface, call the described self-defined drawing function be arranged in a dynamic link library and replace intercepted and captured system drawing API or com interface.
After described self-defined drawing function is called, from the parameter going to intercepted and captured system drawing API or com interface, extract the code stream of described first platform.
The image of the code stream corresponding to described first platform is drawn while the code stream being extracted the first platform mailing to determined target window by described self-defined drawing function.
When not determining described target window, do not extract the code stream of described first platform.
Present invention also provides a kind of secondary coding-decoding device of drawing based on video monitoring, comprising: interception module, the SDK for intercepting and capturing the first platform intends the system drawing API that calls or com interface; Replacement module, for replacing storehouse by interface, call self-defined drawing function to replace intercepted and captured system drawing API or com interface, the assertion format of wherein said self-defined drawing function should be consistent with the assertion format of intercepted and captured system drawing API or com interface; Extraction module, for determining the target window will catching code stream, and extracts the code stream of the first platform mailing to determined target window by described self-defined drawing function; And sending module, for the code stream of the first caught platform is sent to gateway, after secondary coding-decoding, become the code stream of the second platform, and send to described second platform.
Described replacement module, for by Detours, calls described self-defined drawing function and replaces intercepted and captured system drawing API or com interface.
Described replacement module, for replacing storehouse by described interface, calling the described self-defined drawing function be arranged in a dynamic link library and replacing intercepted and captured system drawing API or com interface.
Described extraction module, after called for described self-defined drawing function, extracts the code stream of described first platform from the parameter going to intercepted and captured system drawing API or com interface.
Described extraction module, for drawing the image of the code stream corresponding to described first platform while the code stream being extracted the first platform mailing to determined target window by described self-defined drawing function.
Described extraction module, for when not determining described target window, does not extract the code stream of described first platform.
Through checking, the application based on the secondary coding-decoding method of drawing and device thereof when carrying out video monitoring platform interconnected of different vendor, if do not provide code stream callback interface, the code stream of the video monitoring platform of each manufacturer can be got equally, thus realize the interconnected of the video monitoring platform of different vendor.
Accompanying drawing explanation
The embodiment of the application is described below with reference to appended accompanying drawing, wherein:
Fig. 1 illustrates the schematic diagram that in a kind of video monitoring system of prior art, different platform is interconnected;
Fig. 2 illustrates the schematic diagram of the embodiment that different platform is interconnected in the video monitoring system according to the application; And
Fig. 3 illustrates the process flow diagram of the embodiment of the secondary coding-decoding method based on video monitoring drawing according to the application.
Embodiment
The secondary coding-decoding method based on drawing and the device thereof of the application is described in detail below in conjunction with Fig. 2 and Fig. 3.
Fig. 2 illustrates the schematic diagram of the embodiment that different platform is interconnected in the video monitoring system according to the application.As shown in Figure 2, according to the video monitoring system of the application such as except comprising the A platform 1 shown in Fig. 1, A platform SDK 3, gateway 4 and B platform 6, also comprise and intercept and capture replacement module 7.Wherein, intercept and capture replacement module 7 and comprise interface replacement storehouse 8 and user-defined drawing function (hereinafter referred to as self-defined drawing function) 9, wherein User Defined drawing function 9 can be included in a user-defined self-defined DLL(dynamic link library) in 10, as shown in Figure 2.
It can be such as Detours that interface replaces storehouse 8, Detours is a set of replacement system API(application programming interface that Microsoft Research provides) or COM(the Component Object Model) function library of interface, system API or com interface can be replaced with the interface function that user oneself provides, the self-defined drawing function 9 of such as the application.
Such as, after original system drawing API is replaced with self-defined drawing function 9, then when calling this system drawing API, system will the self-defining drawing function 9 of Automatically invoked, instead of calls this system drawing API.
When A platform SDK 3 will show image on one or more window (not shown), originally the system drawing API for image display or com interface can be called, but, because the intercepting and capturing replacement module 7 of the application is arranged to interception system drawing API or com interface, therefore, as long as A platform SDK 3 draws, will be arranged to by intercepting and capturing replacement module 7 and call self-defined drawing function 9 by interface replacement storehouse 8, so self-defined drawing function 9 just can extract the A code stream 2 that A platform 1 exports according to the parameter originally going past corresponding system drawing API or com interface.
Wherein, the replacement of system drawing API or com interface is only effective to current process, that is, only effectively in-process what carry out that system drawing API or com interface replace, can not have influence on other process of system.
As shown in Figure 2, such as A platform SDK 3 does not have code stream to obtain interface, and the Image Rendering that usually can only directly A platform 1 be exported is on window, and namely A platform 1 and B platform 6 can not carry out interconnected.But, in the arrangement of the application, in order to make A platform 1 and B platform 6 can carry out interconnected, arrange intercepting and capturing replacement module 7.When drawing, the interface intercepted and captured in replacement module 7 is replaced storehouse 8 and is intercepted and captured the system drawing API or com interface that A platform SDK 3 intends to call, and A platform SDK 3 is intended the system drawing API that calls or com interface and replace with self-defined drawing function 9.Self-defined drawing function 9 is originally gone to extract A code stream 2 toward the parameter of system drawing API or com interface from A platform SDK 3, and A code stream 2 is transmitted to gateway 4 to carry out secondary coding-decoding, thus realize the A code stream 2 of A platform 1 to output to B platform 6, namely realize the secondary coding-decoding method of drawing based on video monitoring of the application.
Composition graphs 2, Fig. 3 illustrates the process flow diagram of the embodiment of the secondary coding-decoding method based on video monitoring drawing according to the application.
Particularly, comprise the steps: according to the secondary coding-decoding method based on video monitoring drawing of the application
First, in step S100, the A platform SDK 3 that intercepting and capturing replacement module 7 of the present invention intercepts and captures A platform 1 intends the system drawing API that calls or com interface.
Then, in step S110, intercepting and capturing replacement module 7 of the present invention replaces storehouse 8 by interface, the self-defined drawing function 9 called in self-defined DLL 10 replaces intercepted and captured system drawing API or com interface, and wherein the assertion format of self-defined drawing function 9 should be consistent with the assertion format of intercepted and captured system drawing API or com interface.
For system API StretchDIBits, self-defined drawing function 9 can be function signature is int WINAPI Mine_StretchDIBits (HDC hdc, int XDest, int YDest, intnDestWidth, int nDestHeight, int XSrc, int YSrc, int nSrcWidth, intnSrcHeight, CONST VOID*lpBits, CONST BITMAPINFO*lpBitsInfo, UINTiUsage, DWORD dwRop) function.In a subsequent step, when A platform SDK 3 intends will attempt calling system API StretchDIBits when drawing, but this Mine_StretchDIBits function that intercepting and capturing replacement module 7 invoke user oneself is write substituted for system API StretchDIBits, thus in fact A platform SDK 3 call is this Mine_StretchDIBits function that user oneself writes, the extracting data that this Mine_StretchDIBits function so just can write by user oneself is sent from A platform SDK 3 goes out A code stream 2.
Whether the while of also can determining according to actual needs to continue, calling system API StretchDIBits is to be plotted to the image of corresponding code stream on window simultaneously.
Such as, the source program as self-defined drawing function 9 can specifically comprise:
The self-defined drawing function 9 that intercepting and capturing replacement module 7 invoke user oneself is write is to replace corresponding system drawing API or com interface, that is, when A platform SDK 3 intends to draw, the interface intercepted and captured in replacement module 7 replaces storehouse 8 will intercept and capture the system drawing API or com interface (such as system API StretchDIBits) that A platform SDK 3 intends to call, and A platform SDK3 is intended the system drawing API that calls or com interface and replace with self-defined drawing function 9(in self-defined DLL 10 such as Mine_StretchDIBits function here).
Such as, the source program realizing the intercept process intercepting and capturing replacement module 7 can specifically comprise:
Next, in step S120, intercepting and capturing replacement module 7 of the present invention determines the target window will catching code stream, and extracts the A code stream 2 of the A platform 1 mailing to determined target window by self-defined drawing function 9.
Here, the target window catching code stream is one of the window or multiple window that are originally intended for use target platform (being such as A platform 1) display translation here.
The means that appointment will catch the target window of code stream the handle of this window are added to catch in queue, only can catch the code stream of specified window like this, and all can not catch all windows of system.
As another embodiment, can be arranged to, when not adding the target window of catching code stream, even if self-defined drawing function 9 has been arrived in system call, also can not make code stream and extract operation, but only calling system drawing API or com interface show to complete image again simply.Only with the addition of the target window of catching code stream, show that paid close attention to is the mapping operation of this window, just can extract its view data with readjustment to application layer business.
Such as, realize determining that the source program of the target window will catching code stream can specifically comprise:
Intercept and capture replacement module 7 and catch by self-defined drawing function 9 data that A platform SDK 3 mails to determined target window, carry out code stream extraction, namely, after the self-defined drawing function 9 intercepted and captured in replacement module 7 is called, from the parameter going to intercepted and captured system drawing API or com interface, extract A code stream 2.
Next, in step S130, the A code stream 2 of caught A platform 1 is sent to gateway 4 by intercepting and capturing replacement module 7 of the present invention, becomes the B code stream 5 of B platform 6, and send to B platform 6 after secondary coding-decoding.
By above-mentioned steps S100 of the present invention to step S130, the secondary coding-decoding method of drawing based on video monitoring of the application can be realized.
In addition, after aforesaid operations completes, when not needing to continue to catch code stream, intercepting and capturing replacement module 7 can by deleting the target window that this catches code stream, to avoid unnecessary system performance consumption the handle of the target window of catching code stream from catching queue to delete.
Such as, realize deleting the source program will catching the target window of code stream can specifically comprise:
Finally, intercepting and capturing replacement module 7 can also recovery system drawing API or com interface.Such as, when program exits or do not need to catch code stream again, the amendment of Detours bank interface function recovery to system process can be called.
Such as, the source program realizing recovery system drawing API or com interface can specifically comprise:
It is such as Detours that interface in the intercepting and capturing replacement module 7 of the application replaces storehouse 8, Detours itself comprises two DLL, self-defined drawing function 9 in the intercepting and capturing replacement module 7 of the application is arranged in another DLL 10, this DLL 10 provides interface, and the interface that other module can provide by calling this DLL 10 realizes the secondary coding-decoding method of drawing based on video monitoring of the application.
Such as, the source program realizing intercepting and capturing the interface that replacement module 7 provides can specifically comprise:
Present invention also provides a kind of secondary coding-decoding device of drawing based on video monitoring, comprising: interception module, the SDK for intercepting and capturing the first platform intends the system drawing API that calls or com interface; Replacement module, for replacing storehouse by interface, call self-defined drawing function to replace intercepted and captured system drawing API or com interface, the assertion format of wherein said self-defined drawing function should be consistent with the assertion format of intercepted and captured system drawing API or com interface; Extraction module, for determining the target window will catching code stream, and extracts the code stream of the first platform mailing to determined target window by described self-defined drawing function; And sending module, for the code stream of the first caught platform is sent to gateway, after secondary coding-decoding, become the code stream of the second platform, and send to described second platform.
Through checking, the application based on the secondary coding-decoding method of drawing and device thereof when carrying out video monitoring platform interconnected of different vendor, if do not provide code stream callback interface, the code stream of the video monitoring platform of each manufacturer can be got equally, thus realize the interconnected of the video monitoring platform of different vendor.
The secondary coding-decoding method based on drawing according to the application can by the single or multiple treatment facilities with calculation processing power, and as single or multiple computing machine, moving calculation machine executable instruction realizes.Can be single or multiple treatment facility according to the application based on the secondary coding-decoding device of drawing, as single or multiple computing machine, wherein each module or unit can for having the apparatus assembly of corresponding function during this treatment facility moving calculation machine executable instruction.According to an embodiment of the application, can use the language such as C/C++ under the systems such as Linux, Windows, realize above-mentioned method and device thereof for realizing carrying out data interaction access between process.
Although with reference to exemplary embodiment describing the application, should be appreciated that term used illustrates and exemplary and nonrestrictive term.Because the application can specifically implement in a variety of forms, so be to be understood that, above-described embodiment is not limited to any aforesaid details, and should explain widely enclosing in claim limited range, therefore fall into whole change in claim or its equivalency range and remodeling and all should be claim of enclosing and contained.
Claims (11)
1., based on the secondary coding-decoding method that video monitoring is drawn, comprising:
The SDK intercepting and capturing the first platform intends the system drawing API that calls or com interface;
By Detours, call self-defined drawing function to replace intercepted and captured system drawing API or com interface, the assertion format of wherein said self-defined drawing function should be consistent with the assertion format of intercepted and captured system drawing API or com interface;
Determine the target window will catching code stream, and extract the code stream of the first platform mailing to determined target window by described self-defined drawing function; And
The code stream of the first caught platform is sent to gateway, after secondary coding-decoding, becomes the code stream of the second platform, and send to described second platform.
2. method according to claim 1, wherein
By described Detours, call the described self-defined drawing function be arranged in a dynamic link library and replace intercepted and captured system drawing API or com interface.
3. method according to claim 1, wherein
After described self-defined drawing function is called, from the parameter going to intercepted and captured system drawing API or com interface, extract the code stream of described first platform.
4. method according to claim 1, wherein
The image of the code stream corresponding to described first platform is drawn while the code stream being extracted the first platform mailing to determined target window by described self-defined drawing function.
5. method according to claim 1, wherein
When not determining described target window, do not extract the code stream of described first platform.
6., based on the secondary coding-decoding device that video monitoring is drawn, comprising:
Interception module, the SDK for intercepting and capturing the first platform intends the system drawing API that calls or com interface;
Replacement module, for passing through Detours, call self-defined drawing function to replace intercepted and captured system drawing API or com interface, the assertion format of wherein said self-defined drawing function should be consistent with the assertion format of intercepted and captured system drawing API or com interface;
Extraction module, for determining the target window will catching code stream, and extracts the code stream of the first platform mailing to determined target window by described self-defined drawing function; And
Sending module, for the code stream of the first caught platform is sent to gateway, becomes the code stream of the second platform after secondary coding-decoding, and sends to described second platform.
7. device according to claim 6, wherein
Described replacement module, for by Detours, calls described self-defined drawing function and replaces intercepted and captured system drawing API or com interface.
8. device according to claim 6, wherein
Described replacement module, for by described Detours, calls the described self-defined drawing function be arranged in a dynamic link library and replaces intercepted and captured system drawing API or com interface.
9. device according to claim 6, wherein
Described extraction module, after called for described self-defined drawing function, extracts the code stream of described first platform from the parameter going to intercepted and captured system drawing API or com interface.
10. device according to claim 6, wherein
Described extraction module, for drawing the image of the code stream corresponding to described first platform while the code stream being extracted the first platform mailing to determined target window by described self-defined drawing function.
11. devices according to claim 6, wherein
Described extraction module, for when not determining described target window, does not extract the code stream of described first platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210209788.8A CN102722376B (en) | 2012-06-25 | 2012-06-25 | Method for secondary encoding and decoding based on video monitoring drawing and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210209788.8A CN102722376B (en) | 2012-06-25 | 2012-06-25 | Method for secondary encoding and decoding based on video monitoring drawing and device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102722376A CN102722376A (en) | 2012-10-10 |
| CN102722376B true CN102722376B (en) | 2015-04-08 |
Family
ID=46948156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210209788.8A Active CN102722376B (en) | 2012-06-25 | 2012-06-25 | Method for secondary encoding and decoding based on video monitoring drawing and device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102722376B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111405306A (en) * | 2020-03-20 | 2020-07-10 | 深圳宇翊技术股份有限公司 | PIS streaming media service method based on capturing and secondary encoding after playing |
| CN116126320B (en) * | 2022-12-21 | 2024-02-23 | 瑞庭网络技术（上海）有限公司 | Data processing method and device, electronic equipment and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101458754A (en) * | 2009-01-09 | 2009-06-17 | 清华大学 | Method and apparatus for monitoring application program action |
| CN101477700A (en) * | 2009-02-06 | 2009-07-08 | 南京师范大学 | Real tri-dimension display method oriented to Google Earth and Sketch Up |
| CN101477701A (en) * | 2009-02-06 | 2009-07-08 | 南京师范大学 | Built-in real tri-dimension rendering process oriented to AutoCAD and 3DS MAX |
| CN101477702A (en) * | 2009-02-06 | 2009-07-08 | 南京师范大学 | Built-in real tri-dimension driving method for computer display card |
-
2012
- 2012-06-25 CN CN201210209788.8A patent/CN102722376B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101458754A (en) * | 2009-01-09 | 2009-06-17 | 清华大学 | Method and apparatus for monitoring application program action |
| CN101477700A (en) * | 2009-02-06 | 2009-07-08 | 南京师范大学 | Real tri-dimension display method oriented to Google Earth and Sketch Up |
| CN101477701A (en) * | 2009-02-06 | 2009-07-08 | 南京师范大学 | Built-in real tri-dimension rendering process oriented to AutoCAD and 3DS MAX |
| CN101477702A (en) * | 2009-02-06 | 2009-07-08 | 南京师范大学 | Built-in real tri-dimension driving method for computer display card |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102722376A (en) | 2012-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180013770A1 (en) | System, Apparatus And Method For Using Malware Analysis Results To Drive Adaptive Instrumentation Of Virtual Machines To Improve Exploit Detection | |
| US10042744B2 (en) | Adopting an existing automation script to a new framework | |
| US9910979B2 (en) | Intercepting inter-process communications | |
| US8407789B1 (en) | Method and system for dynamically optimizing multiple filter/stage security systems | |
| EP3213193B1 (en) | Monitoring and correlating a binary process in a distributed business transaction | |
| CN105573733B (en) | Method, web front-end and the system that browser is communicated with web front-end | |
| CN108377232B (en) | Multi-protocol communication method and device, electronic equipment and readable storage medium | |
| US20170147462A1 (en) | Agent dynamic service | |
| US20150120374A1 (en) | Automation of customer relationship management (crm) tasks responsive to electronic communications | |
| US10318612B2 (en) | System and method for implementing screen capture | |
| US10067862B2 (en) | Tracking asynchronous entry points for an application | |
| CN113595927A (en) | Method and device for processing mirror flow in bypass mode | |
| CN110928706B (en) | Applet interaction method and device, electronic equipment and storage medium | |
| CN102722376B (en) | Method for secondary encoding and decoding based on video monitoring drawing and device thereof | |
| CN108595178B (en) | Hook-based data acquisition method, device and equipment | |
| US11095725B2 (en) | Transporting data out of isolated network environments | |
| CN115454576B (en) | Virtual machine process management method and system and electronic equipment | |
| WO2017133229A1 (en) | Mobile terminal image display method and device | |
| CN110661868A (en) | Solution method for extensible visualization application deployment | |
| CN111338937B (en) | Method, device, equipment and medium for downloading small program intervention | |
| CN110262856B (en) | Application program data acquisition method, device, terminal and storage medium | |
| CN102915256A (en) | Message transmission method and device under multi-core browser | |
| US9405826B1 (en) | Systems and methods for digital signal processing | |
| CN114449095B (en) | Cloud mobile phone screenshot method and device, electronic equipment and storage medium | |
| US11847510B2 (en) | System for application self-optimization in serverless edge computing environments |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 215011 No. 131 Jin Shan Road, Suzhou hi tech Industrial Development Zone, Jiangsu, Suzhou Applicant after: Suzhou Keda Technology Co., Ltd. Address before: 215011 No. 131 Jin Shan Road, Suzhou hi tech Industrial Development Zone, Jiangsu, Suzhou Applicant before: Suzhou Keda Technology Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |