CN100553170C - 估算dsl传输介质长度的方法、系统及系统中的处理器 - Google Patents
估算dsl传输介质长度的方法、系统及系统中的处理器 Download PDFInfo
- Publication number
- CN100553170C CN100553170C CNB028134079A CN02813407A CN100553170C CN 100553170 C CN100553170 C CN 100553170C CN B028134079 A CNB028134079 A CN B028134079A CN 02813407 A CN02813407 A CN 02813407A CN 100553170 C CN100553170 C CN 100553170C
- Authority
- CN
- China
- Prior art keywords
- transmission medium
- impedance
- line
- dsl transmission
- dsl
- 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.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 133
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000012546 transfer Methods 0.000 claims description 21
- 230000000052 comparative effect Effects 0.000 claims description 6
- 239000000523 sample Substances 0.000 claims 2
- 230000004069 differentiation Effects 0.000 claims 1
- 101000622137 Homo sapiens P-selectin Proteins 0.000 abstract description 43
- 102100023472 P-selectin Human genes 0.000 abstract description 43
- 101000873420 Simian virus 40 SV40 early leader protein Proteins 0.000 abstract description 43
- 238000005516 engineering process Methods 0.000 abstract description 11
- 230000006870 function Effects 0.000 description 21
- 239000003990 capacitor Substances 0.000 description 17
- 238000010586 diagram Methods 0.000 description 14
- 238000001914 filtration Methods 0.000 description 8
- 230000004044 response Effects 0.000 description 7
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000007476 Maximum Likelihood Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000000547 structure data Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
- H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
- H04M3/305—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop testing of physical copper line parameters, e.g. capacitance or resistance
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/2209—Arrangements for supervision, monitoring or testing for lines also used for data transmission
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephonic Communication Services (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Abstract
Description
Claims (16)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30333001P | 2001-07-05 | 2001-07-05 | |
US60/303,330 | 2001-07-05 | ||
US10/115,503 US6876725B2 (en) | 2001-05-09 | 2002-04-02 | Single ended line probing in DSL system |
US10/115,503 | 2002-04-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1545769A CN1545769A (zh) | 2004-11-10 |
CN100553170C true CN100553170C (zh) | 2009-10-21 |
Family
ID=26813266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB028134079A Expired - Fee Related CN100553170C (zh) | 2001-07-05 | 2002-07-03 | 估算dsl传输介质长度的方法、系统及系统中的处理器 |
Country Status (4)
Country | Link |
---|---|
US (1) | US6876725B2 (zh) |
EP (1) | EP1405433A2 (zh) |
CN (1) | CN100553170C (zh) |
WO (1) | WO2003026160A2 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104125183A (zh) * | 2013-04-26 | 2014-10-29 | 瑞昱半导体股份有限公司 | 模拟前端电路传送端与其连线方法 |
Families Citing this family (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2457551C (en) * | 2001-09-18 | 2010-11-23 | Inventio Ag | Monitoring system |
US7787386B1 (en) | 2001-12-18 | 2010-08-31 | Cisco Technology, Inc. | Method and system for self-testing a line card |
US7072391B2 (en) * | 2002-05-31 | 2006-07-04 | Broadcom Corporation | Adjustment of transmit power based on an estimated electrical length of a loop |
US7027589B2 (en) * | 2002-11-27 | 2006-04-11 | Texas Instruments Incorporated | Single-ended loop test circuitry in a central office DSL modem |
US7426262B2 (en) * | 2003-05-12 | 2008-09-16 | Telefonaktiebolaget L M Ericsson (Publ) | Method and arrangement for loop test of a disturbed line |
KR101018972B1 (ko) * | 2003-05-12 | 2011-03-02 | 텔레폰악티에볼라겟엘엠에릭슨(펍) | 신호 루프 테스트용 방법 및 장치 |
US20040247024A1 (en) * | 2003-06-06 | 2004-12-09 | Gao Xiao M. | Techniques to perform line qualification |
US8108500B2 (en) * | 2003-06-13 | 2012-01-31 | Broadcom Corporation | Probing-based auto moding |
US7486724B2 (en) * | 2003-08-29 | 2009-02-03 | Intel Corporation | Codec compensation techniques for channel analysis applications |
DE10342557A1 (de) * | 2003-09-15 | 2005-04-14 | Siemens Ag | Verfahren und Kommunikationsanordnung zur Überprüfung von Teilnehmeranschlußleitungen |
US7606353B2 (en) * | 2003-09-22 | 2009-10-20 | Intel Corporation | Signal amplitude and clock signal frequency selection |
US7809116B2 (en) * | 2003-12-07 | 2010-10-05 | Adaptive Spectrum And Signal Alignment, Inc. | DSL system estimation including known DSL line scanning and bad splice detection capability |
US7302379B2 (en) * | 2003-12-07 | 2007-11-27 | Adaptive Spectrum And Signal Alignment, Inc. | DSL system estimation and parameter recommendation |
US7132613B2 (en) * | 2004-04-21 | 2006-11-07 | Bellsouth Intellectual Property Corporation | Methods, systems, and terminals for load coil switching |
AU2005330577B8 (en) * | 2004-05-20 | 2009-11-19 | Exxonmobil Upstream Research Company | Logarithmic spectrum transmitter waveform for controlled-source electromagnetic surveying |
US7653180B2 (en) | 2004-10-01 | 2010-01-26 | Tollgrade Communications, Inc. | Method for assessing DSL capability of telephone lines |
WO2006068327A1 (en) * | 2004-12-24 | 2006-06-29 | Matsushita Electric Industrial Co., Ltd. | Line status detection apparatus, communication apparatus, and line status detection method |
WO2006129999A1 (en) * | 2005-05-31 | 2006-12-07 | Snap-On Incorporated | Network bus diagnosis system |
CA2614936A1 (en) * | 2005-07-10 | 2007-01-18 | Adaptive Spectrum And Signal Alignment, Inc. | Dsl system estimation |
US7395162B2 (en) * | 2005-12-21 | 2008-07-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Load coil detection and localization |
CN1844939B (zh) * | 2006-01-16 | 2010-05-12 | 浙江科赛通信技术有限公司 | 一种单端测试adsl线路环阻的方法 |
GB0608599D0 (en) * | 2006-05-03 | 2006-06-14 | Tyco Electronics Raychem Nv | Improvements in xdsl service provision |
CN101119136B (zh) * | 2006-08-04 | 2012-07-11 | 华为技术有限公司 | 一种获取线路基本参数的方法及装置 |
WO2008033184A2 (en) | 2006-09-13 | 2008-03-20 | Exxonmobil Upstream Research Company | Rapid inversion of electromagnetic reconnaissance survey data |
US20080310617A1 (en) * | 2007-06-14 | 2008-12-18 | Infineon Technologies Ag | Transmission Links |
CN101159777B (zh) * | 2007-11-09 | 2011-02-09 | 华为技术有限公司 | 线路测量方法以及测量装置 |
CA2703588C (en) | 2007-12-12 | 2015-12-01 | Exxonmobil Upstream Research Company | Method and apparatus for evaluating submarine formations |
US8428224B2 (en) * | 2008-04-23 | 2013-04-23 | Telefonaktiebolaget L M Ericsson (Publ) | Method for transmission line analysis |
CN101605035B (zh) * | 2008-06-13 | 2012-05-23 | 鸿富锦精密工业(深圳)有限公司 | 调制解调器及其阻抗设定方法 |
GB0812021D0 (en) * | 2008-07-02 | 2008-08-06 | Amway Europ Ltd | Electromagnetic interference mitigation |
WO2011053212A2 (en) * | 2009-10-30 | 2011-05-05 | Telefonaktiebolaget L M Ericsson (Publ) | An arrangement and method relating to analysis of transmission lines |
EP2383897A1 (en) * | 2010-04-28 | 2011-11-02 | Alcatel Lucent | Binder topology identification for a telecommunication network |
WO2012015542A1 (en) | 2010-07-27 | 2012-02-02 | Exxonmobil Upstream Research Company | Inverting geophysical data for geological parameters or lithology |
CA2806874C (en) | 2010-08-16 | 2016-12-06 | Exxonmobil Upstream Research Company | Reducing the dimensionality of the joint inversion problem |
EP2630754A4 (en) * | 2010-10-22 | 2017-06-21 | Tollgrade Communications, Inc. | Integrated ethernet over coaxial cable, stb, and physical layer test and monitoring |
CN102082886B (zh) * | 2011-01-20 | 2014-06-04 | 华为技术有限公司 | 一种数字用户线路的电路及设备 |
US9453929B2 (en) | 2011-06-02 | 2016-09-27 | Exxonmobil Upstream Research Company | Joint inversion with unknown lithology |
EP2721478A4 (en) | 2011-06-17 | 2015-12-02 | Exxonmobil Upstream Res Co | FREEZING OF DOMAINS IN A CONNECTION VERSION |
US9494711B2 (en) | 2011-07-21 | 2016-11-15 | Garrett M Leahy | Adaptive weighting of geophysical data types in joint inversion |
CN102318302B (zh) | 2011-07-29 | 2014-10-08 | 华为技术有限公司 | 信号处理方法、设备及系统 |
CN104756474B (zh) * | 2012-07-13 | 2019-07-30 | 适应性频谱和信号校正股份有限公司 | 用于通信链路性能估计的方法和系统 |
SE536747C2 (sv) * | 2012-10-25 | 2014-07-08 | Zoliex Ab | Förfarande och anordning för bestämning av längd hos ledare |
US10591638B2 (en) | 2013-03-06 | 2020-03-17 | Exxonmobil Upstream Research Company | Inversion of geophysical data on computer system having parallel processors |
US9846255B2 (en) | 2013-04-22 | 2017-12-19 | Exxonmobil Upstream Research Company | Reverse semi-airborne electromagnetic prospecting |
US9461704B2 (en) * | 2013-08-23 | 2016-10-04 | Ikanos Communications, Inc. | Method and apparatus for initiating and data collection of single ended line test on customer premises equipment |
TWI594191B (zh) | 2013-08-26 | 2017-08-01 | 緯創資通股份有限公司 | 識別系統、實體裝置、識別裝置及實體裝置的識別方法 |
CN108693404A (zh) * | 2017-04-06 | 2018-10-23 | 华为技术有限公司 | 链路阻抗检测芯片及方法 |
US20220150041A1 (en) * | 2020-11-12 | 2022-05-12 | Avago Technologies International Sales Pte.Limited | Capacitive hybrid with pga for full duplex transceivers |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4105995A (en) | 1976-06-16 | 1978-08-08 | Hewlett-Packard Company | Digitally controlled transmission impairment measuring apparatus |
US4870675A (en) | 1988-11-28 | 1989-09-26 | American Telephone And Telegraph Company | Remote testing of metallic loops with a trans hybrid signal |
US5128619A (en) | 1989-04-03 | 1992-07-07 | Bjork Roger A | System and method of determining cable characteristics |
EP0391312A3 (en) | 1989-04-03 | 1992-03-18 | International Business Machines Corporation | System for and method of determining cable characteristics |
US5083086A (en) | 1990-07-12 | 1992-01-21 | James G. Biddle Co. | Differential arc reflectometry |
US5461318A (en) | 1994-06-08 | 1995-10-24 | Borchert; Marshall B. | Apparatus and method for improving a time domain reflectometer |
US5864602A (en) | 1997-04-28 | 1999-01-26 | Nynex Science & Technologies, Inc. | Qualifying telephone line for digital transmission service |
US6002671A (en) | 1997-09-03 | 1999-12-14 | Fluke Corporation | Test instrument for testing asymmetric digital subscriber lines |
US5881130A (en) * | 1997-09-15 | 1999-03-09 | Teradyne, Inc. | Fast and noise-insensitive load status detection |
US6091713A (en) | 1998-04-13 | 2000-07-18 | Telcordia Technologies, Inc. | Method and system for estimating the ability of a subscriber loop to support broadband services |
US6385297B2 (en) | 1998-11-03 | 2002-05-07 | Teradyne, Inc. | Method and apparatus for qualifying loops for data services |
US6084946A (en) * | 1998-11-30 | 2000-07-04 | Bell Atlantic Network Services, Inc. | Qualifying a telephone line for digital transmission service |
US6349130B1 (en) | 1998-12-22 | 2002-02-19 | Lucent Technologies, Inc. | Method to pre-qualify copper loops for ADSL service |
US6215855B1 (en) * | 1999-01-21 | 2001-04-10 | Bell Atlantic Network Services, Inc. | Loop certification and measurement for ADSL |
US6177801B1 (en) | 1999-04-21 | 2001-01-23 | Sunrise Telecom, Inc. | Detection of bridge tap using frequency domain analysis |
US6256377B1 (en) | 1999-05-25 | 2001-07-03 | Adtran, Inc. | Loop loss measurement and reporting mechanism for digital data services telephone channel equipment |
US6538451B1 (en) | 1999-06-25 | 2003-03-25 | Telcordia Technologies, Inc. | Single ended measurement method and system for determining subscriber loop make up |
EP1247110A4 (en) | 1999-06-25 | 2006-08-09 | Telcordia Tech Inc | SINGLE-SIDED MEASURING PROCEDURE FOR DETERMINING THE PARTICULAR CONFIGURATION OF A PARTICIPANT |
US6456694B1 (en) | 1999-07-30 | 2002-09-24 | Lucent Technologies Inc. | Method for prequalifying subscriber lines for high speed data service |
CA2281208A1 (en) | 1999-08-31 | 2001-02-28 | Nortel Networks Corporation | Single-ended subscriber loop qualification for xdsl service |
US6487276B1 (en) | 1999-09-30 | 2002-11-26 | Teradyne, Inc. | Detecting faults in subscriber telephone lines |
WO2001031890A2 (en) | 1999-10-28 | 2001-05-03 | Tollgrade Communications, Inc. | Method and apparatus for delay-line time-domain reflectometry |
US6466649B1 (en) | 1999-12-09 | 2002-10-15 | Harris Corporation | Detection of bridged taps by frequency domain reflectometry |
US6434221B1 (en) | 2000-05-17 | 2002-08-13 | Sunrise Telecom, Inc. | Digital subscriber line access and network testing multiplexer |
US6801601B2 (en) * | 2000-10-31 | 2004-10-05 | Centillium Communications, Inc. | Single ended line probing in DSL system using transformerless hybrid |
US6668041B2 (en) * | 2001-05-09 | 2003-12-23 | Centillium Communications, Inc. | Single ended line probing in DSL system |
US6658051B1 (en) * | 2000-10-31 | 2003-12-02 | Centillium Communications, Inc. | Electrical isolation techniques for DSL modem |
-
2002
- 2002-04-02 US US10/115,503 patent/US6876725B2/en not_active Expired - Fee Related
- 2002-07-03 WO PCT/US2002/021000 patent/WO2003026160A2/en not_active Application Discontinuation
- 2002-07-03 EP EP02798905A patent/EP1405433A2/en not_active Withdrawn
- 2002-07-03 CN CNB028134079A patent/CN100553170C/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104125183A (zh) * | 2013-04-26 | 2014-10-29 | 瑞昱半导体股份有限公司 | 模拟前端电路传送端与其连线方法 |
CN104125183B (zh) * | 2013-04-26 | 2017-10-03 | 瑞昱半导体股份有限公司 | 模拟前端电路传送端 |
Also Published As
Publication number | Publication date |
---|---|
CN1545769A (zh) | 2004-11-10 |
US20020172329A1 (en) | 2002-11-21 |
WO2003026160A3 (en) | 2003-05-15 |
WO2003026160A2 (en) | 2003-03-27 |
EP1405433A2 (en) | 2004-04-07 |
US6876725B2 (en) | 2005-04-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100553170C (zh) | 估算dsl传输介质长度的方法、系统及系统中的处理器 | |
CN1784882B (zh) | 干扰线路环路测试的方法和配置 | |
CN100499700C (zh) | Dsl系统中单端的线路探查 | |
CN101490970B (zh) | 传输线插入损耗的估计 | |
US8065100B2 (en) | Method and a system for cable or subscriber loop investigation performing loop topology identification | |
CN1524353A (zh) | 使用无变压器混合电路的dsl系统中的单端线路探测 | |
CN102934088A (zh) | 基于共模传感器的用于进行线路不平衡测量和缓解的系统和方法 | |
US20040101130A1 (en) | Single-ended loop test circuitry in a central office DSL modem | |
US20060251221A1 (en) | Method and arrangement for loop test of a disturbed line | |
US9246614B2 (en) | Methods and devices for transmission line analysis | |
CN104322044A (zh) | 用于双绞电话线路的基于selt和delt的诊断方法及系统 | |
US20030147506A1 (en) | Single ended line probing in DSL system using combined FDR-TDR approach | |
AU2004237642B2 (en) | Method and arrangement for signal loop test | |
Wia | Loop Qualification for xDSL |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: AIKANENG COMMUNICATION COMPANY Free format text: FORMER OWNER: SHENGTIAN COMMUNICATION CO., LTD. Effective date: 20081121 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20081121 Address after: Delaware Applicant after: Centillium Communications Inc Address before: American California Applicant before: Centillium Communications Inc |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20110703 |