SG86291G - Subscriber line card arrangement - Google Patents
Subscriber line card arrangementInfo
- Publication number
- SG86291G SG86291G SG862/91A SG86291A SG86291G SG 86291 G SG86291 G SG 86291G SG 862/91 A SG862/91 A SG 862/91A SG 86291 A SG86291 A SG 86291A SG 86291 G SG86291 G SG 86291G
- Authority
- SG
- Singapore
- Prior art keywords
- subscriber line
- line card
- card arrangement
- arrangement
- subscriber
- Prior art date
Links
Classifications
-
- 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
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8522069A GB2180430B (en) | 1985-09-05 | 1985-09-05 | Subscriber line card arrangement |
Publications (1)
Publication Number | Publication Date |
---|---|
SG86291G true SG86291G (en) | 1991-11-22 |
Family
ID=10584776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG862/91A SG86291G (en) | 1985-09-05 | 1991-10-16 | Subscriber line card arrangement |
Country Status (8)
Country | Link |
---|---|
US (1) | US4984266A (xx) |
EP (1) | EP0235231B2 (xx) |
JP (1) | JPH07121138B2 (xx) |
DE (1) | DE3677190D1 (xx) |
GB (1) | GB2180430B (xx) |
HK (1) | HK99391A (xx) |
SG (1) | SG86291G (xx) |
WO (1) | WO1987001547A1 (xx) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2627041B1 (fr) * | 1988-02-05 | 1994-05-13 | Texas Instruments France | Dispositif de traitement de signaux telephoniques, comprenant des dispositifs de traitement de signaux numeriques communs a plusieurs lignes d'abonnes |
US4975947A (en) * | 1989-02-22 | 1990-12-04 | Texas Instruments Incorporated | System to share the DSP computation resources |
GB2233126A (en) * | 1989-03-03 | 1991-01-02 | Motorola Inc | Data expansion system |
US5253291A (en) * | 1990-10-18 | 1993-10-12 | Ag Communication Systems Corporation | Hybrid balance and combination codec filter circuit |
US5228081A (en) * | 1990-10-18 | 1993-07-13 | Ag Communication Systems Corporation | Ringing signal control circuit for an enhanced subscriber line interface |
CA2086385C (en) * | 1991-12-31 | 1998-05-19 | Daniel F. Daly | Digital signal processing circuit board having use for voice processing system |
CA2086387C (en) * | 1991-12-31 | 1997-03-18 | Daniel F. Daly | Audio circuit board for a modular digital voice processing system |
US5274738A (en) * | 1991-12-31 | 1993-12-28 | Dictaphone Corporation | Modular digital voice processing system |
US5323460A (en) * | 1992-01-07 | 1994-06-21 | Ag Communication Systems Corporation | Enhanced subscriber line interface circuit |
US5995616A (en) * | 1993-01-20 | 1999-11-30 | Telefonaktiebolget Lm Ericsson | Apparatus for communication between a telephone exchange and connected telephone sets |
US5675643A (en) * | 1995-03-30 | 1997-10-07 | Lucent Technologies Inc. | Line card that provides remote line activation and soft dialtone |
US5790072A (en) * | 1995-10-02 | 1998-08-04 | Lucent Technologies, Inc. | Method and apparatus for reducing data delay within a multi-channel shared-circuit date processing environment |
DE19813730A1 (de) * | 1998-03-27 | 1999-09-30 | Siemens Ag | Anordnung zum Anschließen einer Vielzahl von Teilnehmerleitungen an eine Telekommunikationseinrichtung |
DE60019574T2 (de) * | 1999-04-22 | 2006-03-02 | Silicon Laboratories, Inc., Austin | Teilnehmerleitungsschnittstellenschaltung |
US7180999B1 (en) * | 1999-04-22 | 2007-02-20 | Silicon Laboratories, Inc. | Subscriber line interface circuitry |
CA2273660A1 (en) * | 1999-06-07 | 2000-12-07 | Nortel Networks Corporation | Adapter card implementing a time-shared digital signal processor |
JP2001078239A (ja) * | 1999-09-08 | 2001-03-23 | Nec Corp | 加入者回路 |
EP1111807A3 (en) * | 1999-12-03 | 2002-09-25 | Lucent Technologies Inc. | Line card apparatus and method for echo cancellation |
US7486787B2 (en) | 2000-06-30 | 2009-02-03 | Silicon Laboratories, Inc. | Subscriber line interface circuitry with common base audio isolation stage |
EP1294205A1 (en) * | 2001-09-13 | 2003-03-19 | Alcatel | Digital signal processor multi-channel time alignment device and method |
DE10235544B4 (de) * | 2002-03-25 | 2013-04-04 | Agere Systems Guardian Corp. | Verfahren für eine verbesserte Datenkommunikation aufgrund einer verbesserten Datenverarbeitung innerhalb eines Senders/Empfängers |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2247858B1 (xx) * | 1973-09-27 | 1976-06-18 | Ibm France | |
JPS54157407A (en) * | 1978-06-02 | 1979-12-12 | Hitachi Ltd | Level control unit for time-division exchange |
FR2503500A1 (fr) * | 1981-04-03 | 1982-10-08 | Cit Alcatel | Dispositif de secours de terminal d'abonne |
-
1985
- 1985-09-05 GB GB8522069A patent/GB2180430B/en not_active Expired
-
1986
- 1986-09-04 DE DE8686905346T patent/DE3677190D1/de not_active Expired - Lifetime
- 1986-09-04 JP JP61504626A patent/JPH07121138B2/ja not_active Expired - Lifetime
- 1986-09-04 EP EP86905346A patent/EP0235231B2/en not_active Expired - Lifetime
- 1986-09-04 WO PCT/GB1986/000525 patent/WO1987001547A1/en active IP Right Grant
-
1988
- 1988-09-06 US US07/312,378 patent/US4984266A/en not_active Expired - Lifetime
-
1991
- 1991-10-16 SG SG862/91A patent/SG86291G/en unknown
- 1991-12-05 HK HK993/91A patent/HK99391A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPS63500763A (ja) | 1988-03-17 |
EP0235231B1 (en) | 1991-01-23 |
GB2180430B (en) | 1989-08-23 |
DE3677190D1 (de) | 1991-02-28 |
EP0235231B2 (en) | 1996-08-28 |
HK99391A (en) | 1991-12-13 |
EP0235231A1 (en) | 1987-09-09 |
GB2180430A (en) | 1987-03-25 |
US4984266A (en) | 1991-01-08 |
GB8522069D0 (en) | 1985-10-09 |
WO1987001547A1 (en) | 1987-03-12 |
JPH07121138B2 (ja) | 1995-12-20 |
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