ATE186808T1 - Fernsprechschaltung mit geringer verlustleistung - Google Patents
Fernsprechschaltung mit geringer verlustleistungInfo
- Publication number
- ATE186808T1 ATE186808T1 AT93910253T AT93910253T ATE186808T1 AT E186808 T1 ATE186808 T1 AT E186808T1 AT 93910253 T AT93910253 T AT 93910253T AT 93910253 T AT93910253 T AT 93910253T AT E186808 T1 ATE186808 T1 AT E186808T1
- Authority
- AT
- Austria
- Prior art keywords
- pct
- circuit
- low loss
- sub
- date dec
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/738—Interface circuits for coupling substations to external telephone lines
- H04M1/76—Compensating for differences in line impedance
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interface Circuits In Exchanges (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Telephone Function (AREA)
- Dc-Dc Converters (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB929211031A GB9211031D0 (en) | 1992-05-22 | 1992-05-22 | Telephone circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE186808T1 true ATE186808T1 (de) | 1999-12-15 |
Family
ID=10715955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT93910253T ATE186808T1 (de) | 1992-05-22 | 1993-05-21 | Fernsprechschaltung mit geringer verlustleistung |
Country Status (8)
Country | Link |
---|---|
US (1) | US5633925A (de) |
EP (1) | EP0788708B1 (de) |
AT (1) | ATE186808T1 (de) |
DE (1) | DE69327064T2 (de) |
DK (1) | DK0788708T3 (de) |
ES (1) | ES2137989T3 (de) |
GB (1) | GB9211031D0 (de) |
WO (1) | WO1993025037A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5740241A (en) * | 1995-05-12 | 1998-04-14 | Carrier Access Corporation | T1 channel bank control process and apparatus |
US6252957B1 (en) | 1998-10-07 | 2001-06-26 | Teledex Corporation | Low power line selection circuit for a telephone |
US6668060B1 (en) * | 1999-10-26 | 2003-12-23 | Adtran, Inc. | Tracking switchmode power converter for telephony interface circuit |
US7139391B2 (en) * | 2001-10-30 | 2006-11-21 | Integration Associates, Inc. | DAA hook switch |
US7092500B2 (en) * | 2002-12-20 | 2006-08-15 | International Business Machines Corporation | Remote telephony receiver |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA954644A (en) * | 1972-11-28 | 1974-09-10 | Arthur D. Moore | Polarity guard |
US4306119A (en) * | 1980-07-03 | 1981-12-15 | Bell Telephone Laboratories, Incorporated | Telephone outpulsing circuit |
DE3244240C1 (de) * | 1982-11-08 | 1984-03-15 | Sodeco-Saia AG, 1211 Genève | Fernsprechstelle mit niedrigem Speiseleistungsverbrauch |
US5038375A (en) * | 1989-06-23 | 1991-08-06 | Aptek Technologies, Inc. | Circuit arrangement for preventing gain from responding to frequency variation despite the presence of an isolation transformer |
-
1992
- 1992-05-22 GB GB929211031A patent/GB9211031D0/en active Pending
-
1993
- 1993-05-21 US US08/341,576 patent/US5633925A/en not_active Expired - Fee Related
- 1993-05-21 ES ES93910253T patent/ES2137989T3/es not_active Expired - Lifetime
- 1993-05-21 EP EP93910253A patent/EP0788708B1/de not_active Expired - Lifetime
- 1993-05-21 DE DE69327064T patent/DE69327064T2/de not_active Expired - Fee Related
- 1993-05-21 AT AT93910253T patent/ATE186808T1/de not_active IP Right Cessation
- 1993-05-21 DK DK93910253T patent/DK0788708T3/da active
- 1993-05-21 WO PCT/GB1993/001048 patent/WO1993025037A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
DE69327064T2 (de) | 2000-04-06 |
GB9211031D0 (en) | 1992-07-08 |
US5633925A (en) | 1997-05-27 |
WO1993025037A1 (en) | 1993-12-09 |
DK0788708T3 (da) | 2000-04-25 |
EP0788708B1 (de) | 1999-11-17 |
EP0788708A1 (de) | 1997-08-13 |
ES2137989T3 (es) | 2000-01-01 |
DE69327064D1 (de) | 1999-12-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |