DE60019574D1 - Teilnehmerleitungsschnittstellenschaltung - Google Patents
TeilnehmerleitungsschnittstellenschaltungInfo
- Publication number
- DE60019574D1 DE60019574D1 DE60019574T DE60019574T DE60019574D1 DE 60019574 D1 DE60019574 D1 DE 60019574D1 DE 60019574 T DE60019574 T DE 60019574T DE 60019574 T DE60019574 T DE 60019574T DE 60019574 D1 DE60019574 D1 DE 60019574D1
- Authority
- DE
- Germany
- Prior art keywords
- interface circuit
- subscriber line
- line interface
- subscriber
- circuit
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/001—Current supply source at the exchanger providing current to substations
- H04M19/005—Feeding arrangements without the use of line transformers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/005—Interface circuits for subscriber lines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/2272—Subscriber line supervision circuits, e.g. call detection circuits
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Interface Circuits In Exchanges (AREA)
- Dc Digital Transmission (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US502282 | 1990-03-30 | ||
US09/298,008 US7180999B1 (en) | 1999-04-22 | 1999-04-22 | Subscriber line interface circuitry |
US298008 | 1999-04-22 | ||
US09/502,282 US6934384B1 (en) | 1999-04-22 | 2000-02-10 | Subscriber line interface circuitry |
PCT/US2000/010764 WO2000065808A1 (en) | 1999-04-22 | 2000-04-21 | Subscriber line interface circuitry |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60019574D1 true DE60019574D1 (de) | 2005-05-25 |
DE60019574T2 DE60019574T2 (de) | 2006-03-02 |
Family
ID=26970414
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60019574T Expired - Lifetime DE60019574T2 (de) | 1999-04-22 | 2000-04-21 | Teilnehmerleitungsschnittstellenschaltung |
Country Status (6)
Country | Link |
---|---|
US (1) | US7254230B2 (de) |
EP (1) | EP1173966B1 (de) |
JP (1) | JP2002543680A (de) |
AU (1) | AU4479600A (de) |
DE (1) | DE60019574T2 (de) |
WO (1) | WO2000065808A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7925005B2 (en) * | 2006-10-23 | 2011-04-12 | Silicon Laboratories, Inc. | Longitudinal balance calibration for a subscriber line interface circuit |
US7260212B1 (en) | 2007-03-30 | 2007-08-21 | Winbond Electronics Corporation | Method and apparatus for subscriber line control circuit |
US8150026B2 (en) | 2007-06-16 | 2012-04-03 | Winbond Electronics Corporation | Method and system for subscriber line interface circuit |
US8335310B2 (en) | 2007-06-16 | 2012-12-18 | Nuvoton Technology Corporation | Method and system for subscriber line interface circuit having a high-voltage MOS linefeed circuit |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4276447A (en) * | 1978-08-11 | 1981-06-30 | Hitachi, Ltd. | Signal processing apparatus for subscriber circuits |
GB8302673D0 (en) | 1983-02-01 | 1983-03-02 | Motorola Inc | Borsht/slic auto balancing technique |
FR2577737B1 (fr) | 1985-02-15 | 1987-04-17 | Thomson Csf | Circuit d'interface de ligne d'abonne telephonique avec mode de veille a puissance reduite |
AU574277B2 (en) | 1985-08-20 | 1988-06-30 | Fujitsu Limited | Subscriber line interface circuit |
GB2180430B (en) | 1985-09-05 | 1989-08-23 | Motorola Inc | Subscriber line card arrangement |
JP2645022B2 (ja) | 1987-08-21 | 1997-08-25 | 株式会社東芝 | 加入者回路 |
DE3937814A1 (de) | 1989-11-14 | 1991-05-23 | Ant Nachrichtentech | Verfahren zur uebertragung von daten sowie anordnung |
US5175764A (en) | 1990-10-18 | 1992-12-29 | Ag Communication Systems Corporation | Enhanced high voltage line interface circuit |
JPH0568120A (ja) * | 1991-09-05 | 1993-03-19 | Fujitsu Ltd | 給電回路 |
US5323460A (en) | 1992-01-07 | 1994-06-21 | Ag Communication Systems Corporation | Enhanced subscriber line interface circuit |
US5274702A (en) * | 1992-04-16 | 1993-12-28 | Northern Telecom Limited | Wideband telephone line interface circuit |
US5392334A (en) * | 1993-08-25 | 1995-02-21 | Intel Corporation | Off-hook detection and soft line seizure for telephone line sharing in a computer system |
US5528682A (en) * | 1995-01-30 | 1996-06-18 | Harris Corporation | Double duty capacitor circuit and method |
US5848149A (en) | 1995-05-26 | 1998-12-08 | Lucent Technologies Inc. | Subscriber line interface and power circuit |
US5636273A (en) * | 1995-06-07 | 1997-06-03 | Advanced Micro Devices Inc | Integrated ring detection circuit and power cross detection circuit with persistence timers |
US5721774A (en) | 1995-12-15 | 1998-02-24 | Lucent Technologies Inc. | Longitudinally balanced, dual voltage line-feed circuit |
US5659608A (en) | 1995-12-15 | 1997-08-19 | Lucent Technologies Inc. | Line feed circuit with logic level controlled ringing |
US5881129A (en) | 1996-05-10 | 1999-03-09 | Chen; Robert Kuo-Wei | Self-monitoring line interface circuit |
US5828748A (en) | 1996-06-27 | 1998-10-27 | Lucent Technologies | Method for customizing operation of a line interface circuit in a telecommunications network |
US5878133A (en) | 1996-08-21 | 1999-03-02 | Advanced Micro Devices, Inc. | Digital direct current feed control for a communication system |
JPH10336711A (ja) | 1997-03-31 | 1998-12-18 | Fujitsu Ltd | アナログ・ディジタル統合加入者回路 |
US5926544A (en) | 1997-06-06 | 1999-07-20 | Advanced Micro Devices, Inc. | Direct current feed with line status change adaptation in a communication system |
US6178241B1 (en) | 1997-06-06 | 2001-01-23 | Legerity, Inc. | Switch hook status determination in a communication system |
US6219417B1 (en) * | 1997-06-06 | 2001-04-17 | Advanced Micro Devices, Inc. | Ring trip detection in a communication system |
US5854550A (en) | 1997-11-06 | 1998-12-29 | Lucent Technologies Inc. | Transformerless digital-line battery feed circuit |
US6263016B1 (en) | 1998-02-04 | 2001-07-17 | 3Com Corporation | Methods for interfacing a subscriber link to digital networks |
US6301358B1 (en) | 1998-05-29 | 2001-10-09 | Avaya Technology Corp. | Dual-slope current battery-feed circuit |
US7180999B1 (en) | 1999-04-22 | 2007-02-20 | Silicon Laboratories, Inc. | Subscriber line interface circuitry |
-
2000
- 2000-04-21 AU AU44796/00A patent/AU4479600A/en not_active Abandoned
- 2000-04-21 DE DE60019574T patent/DE60019574T2/de not_active Expired - Lifetime
- 2000-04-21 EP EP00926233A patent/EP1173966B1/de not_active Expired - Lifetime
- 2000-04-21 WO PCT/US2000/010764 patent/WO2000065808A1/en active IP Right Grant
- 2000-04-21 JP JP2000614638A patent/JP2002543680A/ja active Pending
-
2005
- 2005-03-30 US US11/093,730 patent/US7254230B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1173966B1 (de) | 2005-04-20 |
WO2000065808A1 (en) | 2000-11-02 |
AU4479600A (en) | 2000-11-10 |
JP2002543680A (ja) | 2002-12-17 |
DE60019574T2 (de) | 2006-03-02 |
US7254230B2 (en) | 2007-08-07 |
EP1173966A1 (de) | 2002-01-23 |
US20050281403A1 (en) | 2005-12-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |