CN1673757A - 利用保护电路测量用户线接口电路的电阻的方法 - Google Patents
利用保护电路测量用户线接口电路的电阻的方法 Download PDFInfo
- Publication number
- CN1673757A CN1673757A CN200510056091.1A CN200510056091A CN1673757A CN 1673757 A CN1673757 A CN 1673757A CN 200510056091 A CN200510056091 A CN 200510056091A CN 1673757 A CN1673757 A CN 1673757A
- Authority
- CN
- China
- Prior art keywords
- resistance value
- interface circuit
- line interface
- subscriber line
- contact
- 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
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000001681 protective effect Effects 0.000 claims abstract description 31
- 239000003990 capacitor Substances 0.000 abstract description 7
- 238000007599 discharging Methods 0.000 abstract 2
- 238000005259 measurement Methods 0.000 description 6
- JEYCTXHKTXCGPB-UHFFFAOYSA-N Methaqualone Chemical compound CC1=CC=CC=C1N1C(=O)C2=CC=CC=C2N=C1C JEYCTXHKTXCGPB-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/24—Arrangements for testing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
Description
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004014449.4 | 2004-03-24 | ||
DE102004014449A DE102004014449B4 (de) | 2004-03-24 | 2004-03-24 | Verfahren zur Widerstandsmessung für eine Teilnehmeranschlussschaltung mittels einer Schutzschaltung |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1673757A true CN1673757A (zh) | 2005-09-28 |
CN100410670C CN100410670C (zh) | 2008-08-13 |
Family
ID=35033878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2005100560911A Active CN100410670C (zh) | 2004-03-24 | 2005-03-23 | 利用保护电路测量用户线接口电路的电阻的方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7561683B2 (zh) |
CN (1) | CN100410670C (zh) |
DE (1) | DE102004014449B4 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101738540B (zh) * | 2009-11-04 | 2012-06-13 | 中国科学院长春光学精密机械与物理研究所 | 一种自动测量电接口静态特性的方法 |
CN109031082A (zh) * | 2018-06-19 | 2018-12-18 | 长鑫存储技术有限公司 | 半导体存储器的电阻值量测电路装置和方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103675458B (zh) * | 2013-12-13 | 2016-07-27 | 北京航天时代光电科技有限公司 | 一种绝缘电阻和特征电阻自动测试仪 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4320338A (en) * | 1980-01-08 | 1982-03-16 | Northern Telecom, Inc. | Methods of and apparatus for determining the capacitance of a transmission line by integrating line currents |
CN85101415A (zh) * | 1985-04-01 | 1986-10-08 | 株式会社日立制作所 | 静态伦纳德(Leonard)装置 |
US5818905A (en) * | 1996-01-08 | 1998-10-06 | Nec Corporation | Subscriber line impedance measurement method and measuring circuit |
GB9718428D0 (en) * | 1997-09-02 | 1997-11-05 | Plessey Telecomm | Telelcommunications line termination test |
TW504533B (en) * | 1999-07-07 | 2002-10-01 | Hitachi Ltd | Electric washing machine |
US6434232B1 (en) * | 1999-08-23 | 2002-08-13 | Intersil Corporation | Apparatus and method for measuring loop impedance |
-
2004
- 2004-03-24 DE DE102004014449A patent/DE102004014449B4/de not_active Expired - Fee Related
-
2005
- 2005-03-23 CN CNB2005100560911A patent/CN100410670C/zh active Active
- 2005-03-24 US US11/089,044 patent/US7561683B2/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101738540B (zh) * | 2009-11-04 | 2012-06-13 | 中国科学院长春光学精密机械与物理研究所 | 一种自动测量电接口静态特性的方法 |
CN109031082A (zh) * | 2018-06-19 | 2018-12-18 | 长鑫存储技术有限公司 | 半导体存储器的电阻值量测电路装置和方法 |
Also Published As
Publication number | Publication date |
---|---|
DE102004014449B4 (de) | 2006-02-09 |
CN100410670C (zh) | 2008-08-13 |
US7561683B2 (en) | 2009-07-14 |
DE102004014449A1 (de) | 2005-10-20 |
US20050238165A1 (en) | 2005-10-27 |
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Owner name: INFINEON TECHNOLOGIES WIRELESS COMMUNICATION SOLUT Free format text: FORMER OWNER: INFINEON TECHNOLOGIES AG Effective date: 20110425 Owner name: LANTIQ DEUTSCHLAND GMBH Free format text: FORMER OWNER: INFINEON TECHNOLOGIES WIRELESS COMMUNICATION SOLUTIONS AG Effective date: 20110425 |
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Owner name: INFINEON TECHNOLOGIES AG Free format text: FORMER NAME: INFINRONG SCIENCE AND TECHNOLOGY CO., LTD. |
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Address after: German Neubiberg Patentee after: Infineon Technologies AG Address before: Munich, Federal Republic of Germany Patentee before: INFINEON TECHNOLOGIES AG |
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Effective date of registration: 20110425 Address after: German Neubiberg Patentee after: Lantiq Deutschland GmbH Address before: German Neubiberg Patentee before: Infineon Technologies Wireless Solutions Ltd. Effective date of registration: 20110425 Address after: German Neubiberg Patentee after: Infineon Technologies Wireless Solutions Ltd. Address before: German Neubiberg Patentee before: Infineon Technologies AG |
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Effective date of registration: 20200805 Address after: California, USA Patentee after: INTEL Corp. Address before: German Neubiberg Patentee before: LANTIQ BETEILIGUNGS GmbH & Co.KG |
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