CN1642045A - Automatic testing method for modulating and demodulation unit and its testing system - Google Patents
Automatic testing method for modulating and demodulation unit and its testing system Download PDFInfo
- Publication number
- CN1642045A CN1642045A CNA2004100007134A CN200410000713A CN1642045A CN 1642045 A CN1642045 A CN 1642045A CN A2004100007134 A CNA2004100007134 A CN A2004100007134A CN 200410000713 A CN200410000713 A CN 200410000713A CN 1642045 A CN1642045 A CN 1642045A
- Authority
- CN
- China
- Prior art keywords
- test
- data
- demodulator
- modulator
- communication control
- 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.)
- Granted
Links
Images
Landscapes
- Maintenance And Management Of Digital Transmission (AREA)
Abstract
The invention relates to modem automation testing method and testing system. The method includes the following steps that connecting the modem to the circuit simulator and the correlative testing device to form a testing environment and open the corresponding communication control port; controlling the circuit simulator and simulating the given distance and the noise environment; controlling the tested device to do testing operation and extract the performance testing result from it. The invention combines the circuit simulator, the operation of the DSLAM device and the testing data extracting to a automation script running to avoid great hand operation, realize the adding-distance adding-noise automation testing of the modem.
Description
Technical field
The present invention relates to a kind of communication apparatus transmission performance automated testing method and test macro thereof, relate in particular to the method for testing and the test macro thereof of some indexs of national Specification in the transmission performance test field of a kind of modulator-demodulator (MODEM).
Background technology
Coming testing ADSL equipment according to YDT1055-2000 " asymmetric digital subscriber line (ADSL) of band speech separator " is the industry standard of the present CNS and the communications industry.In this standard the performance test of adsl equipment has been stipulated based on Europe with based on the line test of two types of North Americas, usually to test performance, signal to noise ratio and decay under 10 kinds of different loops and the noise circumstance, disturb if consider impulsive noise and speech, need test 18 kinds of loops and noise circumstance.
Reality is used manual configuration circuit analog meter (as DLS400 circuit instrument) usually in this test, artificial retest, and manually the method for collecting test data is tested.
Though industry has some automated test tools, these instruments are because be common to various software tests, so when at ADSL user's plate performance test of communication field, also need the manual intervention of large amount of complex and reliability not high.
Usually method of testing has following shortcoming:
(1) required cycle of this class testing is long.In the limited time, can only carry out careful test to a certain road port in the DSLAM equipment user plate, the possibility of omitting problem is bigger.
(2) some problem only could occur after adding distance and keeping a period of time, a chain rupture occurs such as several hrs.When the tester adopted manual configuration, because test is carried out continuously, following time that can keep a few minutes of a common loop model, this type of problem was easy to omit.
(3) transmission performance test is uninteresting loaded down with trivial details, and repeatability is very strong, especially during the MODEM selection test, need repeat in several days surplus the transmission performance test ten time.
Summary of the invention
Technical problem to be solved by this invention is to provide the automated testing method of a kind of MODEM, with circuit analog meter (as DLS400 circuit instrument) and DSLAM (Digital Subscriber Line AccessModule, the Digital Subscriber Line access module) extraction of the operation of equipment and test data combines with an automatized script operation, avoids a large amount of manual operationss.
Another technical problem to be solved by this invention is to provide a kind of automatization test system of modulator-demodulator, gathers automatically and preserves test data, improves testing efficiency.
To achieve these goals, the invention provides a kind of modulator-demodulator automated testing method, its characteristics are, comprise the steps:
Step 30, the control equipment under test carries out test operation, and extracts The performance test results from equipment under test.
Above-mentioned modulator-demodulator automated testing method, its characteristics are that described step 30 also comprises:
Above-mentioned modulator-demodulator automated testing method, its characteristics are that described step 20 also comprises circuit analog meter port initialization process, and its step is as follows:
Open the control desk and the circuit analog meter control mouthful Communication Control port that links to each other of test macro;
Communications parameter is set;
The file handle of Communication Control port is set;
Initialization data to circuit analog meter output port makes port initialization;
The closed communication control port.
Above-mentioned modulator-demodulator automated testing method, its characteristics are, after finishing described circuit analog meter port initialization process steps, comprise also loading distance and noise model process that its step is as follows:
Open the control desk and the circuit analog meter control mouthful Communication Control port that links to each other of test macro;
Communications parameter is set;
The file handle of Communication Control port is set;
Load distance and noise model data to circuit analog meter output, be provided with according to the parameter of standard and actual needs;
The closed communication control port.
Above-mentioned modulator-demodulator automated testing method, its characteristics are, described initialization data to circuit analog meter output port, the step that makes port initialization is the console communication control port by test macro, the distance of each groove position simulation of circuit analog meter is changed to 0, noise is output as off, the channel realization that the direction of loop is set and will shields.
Above-mentioned modulator-demodulator automated testing method, its characteristics are, it is described that to load distance and noise model data step to circuit analog meter output be console communication control port by test macro, to circuit analog meter respectively output magazine item, the distance of simulation, the noise parameter of simulation etc., be provided with according to the parameter of standard and actual needs.
Above-mentioned modulator-demodulator automated testing method, its characteristics are that the described step 30 of obtaining test data further comprises control data subscribers feeder access module, extract the performance data procedures, and its step is as follows:
Open the Communication Control port that the control desk of test macro links to each other with the digital subscriber line access module;
Communications parameter is set;
The file handle of Communication Control port is set;
Open the file that is used for storing data;
Order to digital subscriber line access module output extraction data;
Circulation is from digital subscriber line access module reading of data and classify;
In file, write the performance data of digital subscriber line access module;
Close file and Communication Control port.
Above-mentioned modulator-demodulator automated testing method, its characteristics are that the described step 30 of obtaining test data further comprises the control modulator-demodulator, extract the performance data procedures, and its step is as follows:
Open the Communication Control port that the control desk of test macro links to each other with modulator-demodulator;
Communications parameter is set;
The file handle of Communication Control port is set;
Open the file that is used for storing data;
Order to modulator-demodulator output extraction data;
Circulation is from the modulator-demodulator reading of data and classify;
In file, write the performance data of modulator-demodulator;
Close file and Communication Control port.
Above-mentioned modulator-demodulator automated testing method, its characteristics are that in the described step 10, the step that forms a test environment comprises:
Connection line analog meter, Digital Subscriber Line access module arrive test computer respectively, and connection line analog meter and Digital Subscriber Line access module;
Modulator-demodulator to be measured is connected respectively on described test computer and the circuit analog meter, by test computer control, operational testing process.
Above-mentioned modulator-demodulator automated testing method, its characteristics are, described Communication Control port is serial port or parallel port, and described line parameter circuit value comprises bits per second, parity check, data bit, position of rest, whether blocks process, the sign etc. of data cached and line endings whether.
Above-mentioned modulator-demodulator automated testing method, its characteristics are, also comprise connecting a network performance analysis instrument in described test environment, to carry out the packet loss test.
The present invention also provides a kind of modulator-demodulator automatization test system, its characteristics are, comprise the modulator-demodulator to be measured, circuit analog meter, the Digital Subscriber Line access module that are connected with test computer respectively, and described circuit analog meter is connected with modulator-demodulator, Digital Subscriber Line access module respectively also; Described test computer is as the control desk of whole test system, relevant control and the operation tested, and control described modulator-demodulator, the Digital Subscriber Line access module is gathered the preservation test data automatically.
Method of testing of the present invention and test macro have following beneficial effect:
(1) can generate test case at each standard noise model and standard circuit model, make test fully comprehensively.Testing procedure is by program Solidification, and test process is stable, solves to omit failure problems.
(2) generation, preservation, modification, playback test case conveniently improve the efficient of Test Design work.
(3) each circuit model can carry out down the automatic test of packet loss etc. with SMARTBITS, and the environment of emulation is provided for the packet loss test.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the main flow chart of method of testing of the present invention;
Fig. 2 is Test Networking figure of the present invention;
Fig. 3 is the flow chart of steps that the control circuit analog meter is provided with distance and noise model among the present invention;
Fig. 4 is the flow chart of steps of control DSLAM reading performance data among the present invention;
Fig. 5 is the flow chart of steps of control MODEM reading performance data among the present invention.
Embodiment
As shown in Figure 2, the networking mode of building of test macro of the present invention can be as shown in the figure, comprise the modulator-demodulator to be measured 22, circuit analog meter 23, the Digital Subscriber Line access module 24 that are connected with test computer 21 respectively, and described circuit analog meter 23 is connected with modulator-demodulator 22, Digital Subscriber Line access module 24 respectively also.Described test computer 21 is as the control desk of whole test system, relevant control and the operation tested, and control described modulator-demodulator 22, Digital Subscriber Line access module 24 is gathered automatically and is preserved test datas.
Under test environment as shown in Figure 2, move the test script that method of testing according to the present invention is write, can finish collection, the preservation of relevant test and test data automatically.To simulate specific distance and noise circumstance by adopting DLS400 circuit instrument below, realize adding distance, adding the automatic test of making an uproar of MODEM as the circuit analog meter.
As shown in Figure 1, method of testing of the present invention mainly comprises the steps:
Step 30, control equipment under test carry out test operation, and extract The performance test results from equipment under test.It mainly comprises the steps:
In step 20, by control DSL400, simulation specific distance and noise circumstance are set, its algorithm steps flow chart is referring to Fig. 3, and use TCL language compilation test script.
And step 20 also comprises step 201, circuit analog meter (as DLS400 circuit instrument) port initialization, and it mainly comprises the following steps:
In the step 20, behind initialization circuit analog meter, also comprise step 202, in circuit analog meter (DLS400), load distance and noise model, it comprises the steps:
Among the present invention, the step of obtaining test data in the step 30 comprises control DSLAM, extracts performance data, extracts flow chart referring to Fig. 4, and this extracts flow process and uses TCL language compilation test script, and this extraction step comprises:
Step 401, open the Communication Control port that control desk links to each other with DSLAM.
Step 402, communications parameter is set, comprises bits per second, parity check, data bit, position of rest, whether block process, the sign etc. of data cached and line endings whether.
Step 403, the file handle of Communication Control port is set.
Step 404, open the file that is used for storing data.
Extract the order of data then to DSLAM output, and circulation writes the performance data of DSLAM, last close file, Communication Control port from the DSLAM reading of data and classify in file.This process is mainly finished as follows:
Step 405, judge whether to have captured all data? if then forward step 409 to: otherwise forward step 406 to.
Step 406, the order of extracting data to DSLAM output.
Step 407, from serial ports (or parallel port) reading of data, and the classification, be stored in the temporary variable.
Step 408, reading of data counter increase by 1, and turn back to step 405, rejudge and obtain data, until obtaining all data.
Step 409, write data to storage file.
Step 410, close file.
Step 411, close serial ports (or parallel port).
Among the present invention, the step of obtaining test data in the step 30 also comprises control MODEM, extracts performance data, it extracts flow chart referring to Fig. 5, this extracts flow process and uses TCL language compilation test script, and this extraction step is similar with control DSLAM extraction performance data step, comprising:
Extract the order of data then to MODEM output, circulation is from the MODEM reading of data and classify, and writes the performance data of MODEM in file, last close file, Communication Control port.This process is mainly finished as follows:
The present invention can also connect a network performance analysis instrument (SMARTBITS) to test macro, and control SMARTBITS is to carry out the packet loss test.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (12)
1, a kind of modulator-demodulator automated testing method is characterized in that, comprises the steps:
Step 10 connects modulator-demodulator to circuit analog meter and dependence test equipment, forms a test environment, and opens corresponding Communication Control port;
Step 20, the control circuit analog meter is simulated specific distance and noise circumstance;
Step 30, the control equipment under test carries out test operation, and extracts The performance test results from equipment under test.
2, modulator-demodulator automated testing method according to claim 1 is characterized in that, described step 30 also comprises:
Step 301, the control equipment under test is to equipment under test place port Load Line parameter;
Step 302 to the order that data are extracted in equipment under test output, is obtained test data again;
Step 303 judges whether to capture data, if, then forward step 304 to, go out key value from extracting data, write to storage file, and close file and Communication Control port, finish; Otherwise it is rapid 302 to return previous step, and the order of extracting data to equipment under test output is obtained test data, again until obtaining all data again.
3, modulator-demodulator automated testing method according to claim 1 and 2 is characterized in that, described step 20 also comprises circuit analog meter port initialization process, and its step is as follows:
Open the control desk and the circuit analog meter control mouthful Communication Control port that links to each other of test macro;
Communications parameter is set;
The file handle of Communication Control port is set;
Initialization data to circuit analog meter output port makes port initialization;
The closed communication control port.
4, modulator-demodulator automated testing method according to claim 3 is characterized in that, after finishing described circuit analog meter port initialization process steps, comprises also loading distance and noise model process that its step is as follows:
Open the control desk and the circuit analog meter control mouthful Communication Control port that links to each other of test macro;
Communications parameter is set;
The file handle of Communication Control port is set;
Load distance and noise model data to circuit analog meter output, be provided with according to the parameter of standard and actual needs;
The closed communication control port.
5, modulator-demodulator automated testing method according to claim 3, it is characterized in that, described initialization data to circuit analog meter output port, the step that makes port initialization is the console communication control port by test macro, the distance of each groove position simulation of circuit analog meter is changed to 0, noise is output as off, the channel realization that the direction of loop is set and will shields.
6, modulator-demodulator automated testing method according to claim 4, it is characterized in that, it is described that to load distance and noise model data step to circuit analog meter output be console communication control port by test macro, to circuit analog meter respectively output magazine item, the distance of simulation, the noise parameter of simulation etc., be provided with according to the parameter of standard and actual needs.
According to claim 1,2 or 4 described modulator-demodulator automated testing methods, it is characterized in that 7, the described step 30 of obtaining test data further comprises control data subscribers feeder access module, extract the performance data procedures, its step is as follows:
Open the Communication Control port that the control desk of test macro links to each other with the digital subscriber line access module;
Communications parameter is set;
The file handle of Communication Control port is set;
Open the file that is used for storing data;
Order to digital subscriber line access module output extraction data;
Circulation is from digital subscriber line access module reading of data and classify;
In file, write the performance data of digital subscriber line access module;
Close file and Communication Control port.
According to claim 1,2 or 4 described modulator-demodulator automated testing methods, it is characterized in that 8, the described step 30 of obtaining test data further comprises the control modulator-demodulator, extract the performance data procedures, its step is as follows:
Open the Communication Control port that the control desk of test macro links to each other with modulator-demodulator;
Communications parameter is set;
The file handle of Communication Control port is set;
Open the file that is used for storing data;
Order to modulator-demodulator output extraction data;
Circulation is from the modulator-demodulator reading of data and classify;
In file, write the performance data of modulator-demodulator;
Close file and Communication Control port.
9, modulator-demodulator automated testing method according to claim 1 and 2 is characterized in that, in the described step 10, the step that forms a test environment comprises:
Connection line analog meter, Digital Subscriber Line access module arrive test computer respectively, and connection line analog meter and Digital Subscriber Line access module;
Modulator-demodulator to be measured is connected respectively on described test computer and the circuit analog meter, by test computer control, operational testing process.
10, modulator-demodulator automated testing method according to claim 2, it is characterized in that, described Communication Control port is serial port or parallel port, and described line parameter circuit value comprises bits per second, parity check, data bit, position of rest, whether blocks process, the sign etc. of data cached and line endings whether.
11, modulator-demodulator automated testing method according to claim 2 is characterized in that, also comprises connecting a network performance analysis instrument in described test environment, to carry out the packet loss test.
12, a kind of modulator-demodulator automatization test system, it is characterized in that, comprise the modulator-demodulator to be measured, circuit analog meter, the Digital Subscriber Line access module that are connected with test computer respectively, and described circuit analog meter is connected with modulator-demodulator, Digital Subscriber Line access module respectively also; Described test computer is as the control desk of whole test system, relevant control and the operation tested, and control described modulator-demodulator, the Digital Subscriber Line access module is gathered the preservation test data automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2004100007134A CN1642045B (en) | 2004-01-14 | 2004-01-14 | Automatic testing method for modulating and demodulation unit and its testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2004100007134A CN1642045B (en) | 2004-01-14 | 2004-01-14 | Automatic testing method for modulating and demodulation unit and its testing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1642045A true CN1642045A (en) | 2005-07-20 |
| CN1642045B CN1642045B (en) | 2010-07-14 |
Family
ID=34866865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004100007134A Expired - Fee Related CN1642045B (en) | 2004-01-14 | 2004-01-14 | Automatic testing method for modulating and demodulation unit and its testing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1642045B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101232408B (en) * | 2008-02-20 | 2010-09-29 | 中兴通讯股份有限公司 | Method and system for testing stability of mass of numeral subscriber line port for chain building and breaking |
| CN102546967A (en) * | 2011-12-15 | 2012-07-04 | 深圳市共进电子股份有限公司 | Method for testing data transmission performance of xDSL device |
| CN102546306A (en) * | 2012-01-19 | 2012-07-04 | 瑞斯康达科技发展股份有限公司 | DSL transmission range test method and device adopting same |
| CN102565685A (en) * | 2010-12-14 | 2012-07-11 | 苏州工业园区谱芯科技有限公司 | Logic built-in self-test system |
| CN103780452A (en) * | 2012-10-25 | 2014-05-07 | 华为技术有限公司 | Access equipment performance obtaining method, apparatus and equipment |
| CN103957067A (en) * | 2014-04-21 | 2014-07-30 | 清华大学 | Automatic testing device and system of demodulator |
| CN104580752A (en) * | 2013-10-18 | 2015-04-29 | 深圳市共进电子股份有限公司 | Test method and system for data transparent transmission |
| CN106230523A (en) * | 2016-09-20 | 2016-12-14 | 深圳市迈特通信设备有限公司 | A kind of OOK electrical property modem automatization test system and method |
| CN111901198A (en) * | 2020-07-29 | 2020-11-06 | 中国科学院空天信息创新研究院 | Automatic parallel test system and method for high-speed digital demodulator |
| CN113709783A (en) * | 2021-08-30 | 2021-11-26 | 展讯通信（上海）有限公司 | System, method, apparatus, medium, and device for automated testing of modems |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5463633A (en) * | 1994-02-22 | 1995-10-31 | Rockwell International Corporation | Use of at commands to test modem with HP3065 |
| CN1130860C (en) * | 2000-05-22 | 2003-12-10 | 英业达股份有限公司 | Automatic modem testing method |
-
2004
- 2004-01-14 CN CN2004100007134A patent/CN1642045B/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101232408B (en) * | 2008-02-20 | 2010-09-29 | 中兴通讯股份有限公司 | Method and system for testing stability of mass of numeral subscriber line port for chain building and breaking |
| CN102565685A (en) * | 2010-12-14 | 2012-07-11 | 苏州工业园区谱芯科技有限公司 | Logic built-in self-test system |
| CN102565685B (en) * | 2010-12-14 | 2014-04-02 | 苏州工业园区谱芯科技有限公司 | Logic built-in self-test system |
| CN102546967B (en) * | 2011-12-15 | 2014-11-12 | 深圳市共进电子股份有限公司 | Method for testing data transmission performance of xDSL device |
| CN102546967A (en) * | 2011-12-15 | 2012-07-04 | 深圳市共进电子股份有限公司 | Method for testing data transmission performance of xDSL device |
| CN102546306B (en) * | 2012-01-19 | 2015-03-25 | 瑞斯康达科技发展股份有限公司 | DSL transmission range test method and device adopting same |
| CN102546306A (en) * | 2012-01-19 | 2012-07-04 | 瑞斯康达科技发展股份有限公司 | DSL transmission range test method and device adopting same |
| CN103780452A (en) * | 2012-10-25 | 2014-05-07 | 华为技术有限公司 | Access equipment performance obtaining method, apparatus and equipment |
| CN103780452B (en) * | 2012-10-25 | 2017-04-26 | 华为技术有限公司 | Access equipment performance obtaining method, apparatus and equipment |
| CN104580752A (en) * | 2013-10-18 | 2015-04-29 | 深圳市共进电子股份有限公司 | Test method and system for data transparent transmission |
| CN104580752B (en) * | 2013-10-18 | 2018-12-21 | 深圳市共进电子股份有限公司 | The test method and system of data penetration transmission |
| CN103957067A (en) * | 2014-04-21 | 2014-07-30 | 清华大学 | Automatic testing device and system of demodulator |
| CN103957067B (en) * | 2014-04-21 | 2016-07-06 | 清华大学 | Demodulator automatic testing equipment |
| CN106230523A (en) * | 2016-09-20 | 2016-12-14 | 深圳市迈特通信设备有限公司 | A kind of OOK electrical property modem automatization test system and method |
| CN111901198A (en) * | 2020-07-29 | 2020-11-06 | 中国科学院空天信息创新研究院 | Automatic parallel test system and method for high-speed digital demodulator |
| CN113709783A (en) * | 2021-08-30 | 2021-11-26 | 展讯通信（上海）有限公司 | System, method, apparatus, medium, and device for automated testing of modems |
| CN113709783B (en) * | 2021-08-30 | 2024-07-16 | 展讯通信（上海）有限公司 | Automatic test system, method, device, medium and equipment for modem |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1642045B (en) | 2010-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1642045A (en) | Automatic testing method for modulating and demodulation unit and its testing system | |
| CN100337212C (en) | Logic verification system and method | |
| CN110222715B (en) | Sample homologous analysis method based on dynamic behavior chain and dynamic characteristics | |
| CN105302706B (en) | Applied program testing method and device | |
| EP1462995A3 (en) | Method and apparatus for classifying defects | |
| CN1737600A (en) | Apparatus and method for automated test setup | |
| CN101056220A (en) | Central monitoring method of the data service system without network management interface | |
| CN101055523A (en) | Method for exchanging software program code to hardware described language program code | |
| CA2480942A1 (en) | Method for conducting radiated performance tests of a wireless device | |
| CN103176894B (en) | A kind of test data automatic derivatization method and apparatus of data base-oriented | |
| CN101042710A (en) | Method and system for implementing acquisition data sharing | |
| CN202385232U (en) | Automated testing device of set top box | |
| CN108764114A (en) | A kind of signal recognition method and its equipment, storage medium, terminal | |
| CN108734708A (en) | Gastric cancer recognition methods, device and storage medium | |
| CN101038597A (en) | Data collector and system for sharing data collected | |
| CN1812349A (en) | Automatic testing device for audio-frequency index | |
| CN103500109B (en) | Method and device for achieving file collection and software package automatic installation | |
| CN1284093C (en) | Security hole diagnosis system | |
| CN1509524A (en) | Spectrum spreader receptor apparatus | |
| CN1710977A (en) | Apparatus and method for extracting and multimedia message simply saving | |
| CN1862267A (en) | Method for checking circuit schematic diagram | |
| CN1223246C (en) | Method for designing printed circuit board and its equipment | |
| CN1870611A (en) | Method and system for estimating channel property parameter | |
| CN110008698A (en) | Method for detecting virus and device | |
| CN109918298A (en) | Intelligent sound front end microphone adjustment method, device, system and medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20180114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |