FR2426365A1 - Circuit hybride pour une liaison deux-quatre fils a reglage automatique - Google Patents
Circuit hybride pour une liaison deux-quatre fils a reglage automatiqueInfo
- Publication number
- FR2426365A1 FR2426365A1 FR7912732A FR7912732A FR2426365A1 FR 2426365 A1 FR2426365 A1 FR 2426365A1 FR 7912732 A FR7912732 A FR 7912732A FR 7912732 A FR7912732 A FR 7912732A FR 2426365 A1 FR2426365 A1 FR 2426365A1
- Authority
- FR
- France
- Prior art keywords
- hybrid circuit
- automatically adjusted
- wire automatically
- adjusted link
- subscriber line
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/54—Circuits using the same frequency for two directions of communication
- H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
- H04B1/581—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa using a transformer
- H04B1/582—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa using a transformer with automatic balancing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/005—Interface circuits for subscriber lines
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Interface Circuits In Exchanges (AREA)
- Devices For Supply Of Signal Current (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Ce circuit hybride pour transformer une liaison deux fils, telle qu'une ligne d'abonné au téléphone, en une liaison quatre fils comporte un circuit d'équilibrage adapté automatiquement à l'impédance de la ligne abonné en utilisant le courant de boucle de la ligne. Application : alimentation en courant continu d'une ligne d'abonné au téléphone.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7805416BA NL7805416A (nl) | 1978-05-19 | 1978-05-19 | Zelf-instellende vorkschakeling. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2426365A1 true FR2426365A1 (fr) | 1979-12-14 |
FR2426365B1 FR2426365B1 (fr) | 1984-04-20 |
Family
ID=19830865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7912732A Granted FR2426365A1 (fr) | 1978-05-19 | 1979-05-18 | Circuit hybride pour une liaison deux-quatre fils a reglage automatique |
Country Status (10)
Country | Link |
---|---|
US (1) | US4297536A (fr) |
JP (1) | JPS54152838A (fr) |
AU (1) | AU522349B2 (fr) |
BE (1) | BE876333A (fr) |
CA (1) | CA1137665A (fr) |
DE (1) | DE2919652C2 (fr) |
FR (1) | FR2426365A1 (fr) |
GB (1) | GB2021362B (fr) |
NL (1) | NL7805416A (fr) |
SE (1) | SE438758B (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5733844A (en) * | 1980-08-08 | 1982-02-24 | Toshiba Corp | Echo cancelling device |
SE450677B (sv) * | 1982-04-01 | 1987-07-13 | Ericsson Telefon Ab L M | Matningskrets ingaende i en likstromsmagnetiserad gaffeltransformator |
SE426127B (sv) * | 1981-04-24 | 1982-12-06 | Ericsson Telefon Ab L M | Likstromsmagnetiserad gaffeltransformator |
JPS5853233A (ja) * | 1981-09-25 | 1983-03-29 | Fujitsu Ltd | 平衡結線網整合方式 |
DE3533762A1 (de) * | 1985-09-21 | 1987-04-02 | Ant Nachrichtentech | Schaltungsanordnung zum anschluss eines teilnehmerendgeraetes an teilnehmeranschlussleitung |
US5271060A (en) * | 1990-01-12 | 1993-12-14 | Codex Corporation | Circuitry for interfacing telecommunications equipment to a communication channel |
US8204094B2 (en) * | 2009-04-21 | 2012-06-19 | Innova, Inc. | Scalable, efficient laser systems |
WO2016003331A1 (fr) * | 2014-07-01 | 2016-01-07 | Telefonaktiebolaget L M Ericsson (Publ) | Circuit de transformateur différentiel |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2387269A (en) * | 1942-10-24 | 1945-10-23 | Bell Telephone Labor Inc | Telephone system |
GB1115216A (en) * | 1967-02-28 | 1968-05-29 | Standard Telephones Cables Ltd | Hybrid transformer |
FR1573659A (fr) * | 1967-07-18 | 1969-07-04 | ||
DE2649351A1 (de) * | 1975-05-09 | 1978-05-03 | Frank Stuart Boxall | Direkt gekoppelte, transformatorlose gabelschaltung |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1249948B (de) * | 1967-09-14 | Siemens Aktiengesellschaft, Berlin und München, München | Schaltungsanordnung zum vierdrahtmäßigen Zusammenschalten von Leitungsabschnitten in Fernmelde-, insbesondere Fernsprechanlagen | |
US2302374A (en) * | 1941-02-25 | 1942-11-17 | Bell Telephone Labor Inc | Two-way signal transmission system |
NL269763A (fr) * | 1960-09-30 | |||
US3178521A (en) * | 1962-11-15 | 1965-04-13 | Bell Telephone Labor Inc | Dynamically balanced telephone network |
FR2160308B1 (fr) * | 1971-11-19 | 1977-01-28 | Labo Cent Telecommunicat | |
US3875350A (en) * | 1973-11-05 | 1975-04-01 | Gte Automatic Electric Lab Inc | Self-balancing hybrid circuit |
US4150260A (en) * | 1975-06-18 | 1979-04-17 | Hitachi, Ltd. | Subscriber's circuit for four-wire-system local switch |
DE2714803B1 (de) * | 1977-04-02 | 1978-08-03 | Standard Elek K Lorenz Ag | Gabelschaltung zur Zweidraht-Vollduplexuebertragung von Digitalsignalen |
US4103118A (en) * | 1977-05-02 | 1978-07-25 | Synanon Foundation, Inc. | Autobalance hybrid circuit |
US4096362A (en) * | 1977-06-20 | 1978-06-20 | Bell Telephone Laboratories, Incorporated | Automatic cable balancing network |
-
1978
- 1978-05-19 NL NL7805416BA patent/NL7805416A/xx not_active Application Discontinuation
-
1979
- 1979-05-10 CA CA000327398A patent/CA1137665A/fr not_active Expired
- 1979-05-11 US US06/038,377 patent/US4297536A/en not_active Expired - Lifetime
- 1979-05-16 AU AU47091/79A patent/AU522349B2/en not_active Ceased
- 1979-05-16 DE DE2919652A patent/DE2919652C2/de not_active Expired
- 1979-05-16 GB GB7917105A patent/GB2021362B/en not_active Expired
- 1979-05-16 SE SE7904303A patent/SE438758B/sv unknown
- 1979-05-17 JP JP6141479A patent/JPS54152838A/ja active Pending
- 1979-05-17 BE BE0/195226A patent/BE876333A/fr not_active IP Right Cessation
- 1979-05-18 FR FR7912732A patent/FR2426365A1/fr active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2387269A (en) * | 1942-10-24 | 1945-10-23 | Bell Telephone Labor Inc | Telephone system |
GB1115216A (en) * | 1967-02-28 | 1968-05-29 | Standard Telephones Cables Ltd | Hybrid transformer |
FR1573659A (fr) * | 1967-07-18 | 1969-07-04 | ||
DE2649351A1 (de) * | 1975-05-09 | 1978-05-03 | Frank Stuart Boxall | Direkt gekoppelte, transformatorlose gabelschaltung |
Also Published As
Publication number | Publication date |
---|---|
CA1137665A (fr) | 1982-12-14 |
AU4709179A (en) | 1979-11-22 |
AU522349B2 (en) | 1982-05-27 |
US4297536A (en) | 1981-10-27 |
SE7904303L (sv) | 1979-11-20 |
JPS54152838A (en) | 1979-12-01 |
DE2919652C2 (de) | 1986-05-07 |
FR2426365B1 (fr) | 1984-04-20 |
DE2919652A1 (de) | 1979-11-22 |
GB2021362A (en) | 1979-11-28 |
SE438758B (sv) | 1985-04-29 |
GB2021362B (en) | 1982-08-25 |
BE876333A (fr) | 1979-11-19 |
NL7805416A (nl) | 1979-11-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |