FR2457608A1 - Circuit de joncteur bidirectionnel - Google Patents
Circuit de joncteur bidirectionnelInfo
- Publication number
- FR2457608A1 FR2457608A1 FR7918179A FR7918179A FR2457608A1 FR 2457608 A1 FR2457608 A1 FR 2457608A1 FR 7918179 A FR7918179 A FR 7918179A FR 7918179 A FR7918179 A FR 7918179A FR 2457608 A1 FR2457608 A1 FR 2457608A1
- Authority
- FR
- France
- Prior art keywords
- pair
- way trunk
- trunk circuit
- symmetrical
- circuit connected
- 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
- 230000006978 adaptation Effects 0.000 abstract 1
Classifications
-
- 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
- H04B1/587—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 opto-couplers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/32—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
-
- 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
- H04B1/586—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 an electronic circuit
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/0096—Trunk circuits
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
- Amplifiers (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Devices For Supply Of Signal Current (AREA)
- Dc Digital Transmission (AREA)
- Small-Scale Networks (AREA)
Abstract
LE CIRCUIT DE JONCTEUR BIDIRECTIONNEL EST PREVU POUR RELIER UNE PAIRE SYMETRIQUE ET UNE PAIRE DISSYMETRIQUE, EN EVITANT LES RENVOIS DE SIGNAUX ET EN COMMANDANT LES NIVEAUX. LA PAIRE SYMETRIQUE T, R SE TERMINE PAR UNE PREMIERE IMPEDANCE D'ADAPTATION ET SUR UNE RESISTANCE5. LE CIRCUIT COMPREND UN TRANSFORMATEUR83-84 ET UN CIRCUIT D'ENTREE A BASSE IMPEDANCE RELIE A SON PRIMAIRE8 ET UN CIRCUIT DE SORTIE A HAUTE IMPEDANCE RELIE A SON SECONDAIRE83. LE PREMIER SERT A APPLIQUER UN SIGNAL PROVENANT DE LA PAIRE DISSYMETRIQUE U A LA SECONDE PAIRE SYMETRIQUE T, R. UTILISABLE NOTAMMENT DANS LES STANDARDS PRIVES.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA297,883A CA1123131A (fr) | 1978-02-28 | 1978-02-28 | Circuit de prolongement sans transformateur |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2457608A1 true FR2457608A1 (fr) | 1980-12-19 |
FR2457608B1 FR2457608B1 (fr) | 1985-10-25 |
Family
ID=4110878
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7835484A Granted FR2418581A1 (fr) | 1978-02-28 | 1978-12-08 | Circuit de joncteur bidirectionnel sans transformateur |
FR7918179A Expired FR2457608B1 (fr) | 1978-02-28 | 1979-07-09 | Circuit de joncteur bidirectionnel |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7835484A Granted FR2418581A1 (fr) | 1978-02-28 | 1978-12-08 | Circuit de joncteur bidirectionnel sans transformateur |
Country Status (6)
Country | Link |
---|---|
US (2) | US4182936A (fr) |
JP (2) | JPS6028477B2 (fr) |
CA (1) | CA1123131A (fr) |
DE (3) | DE2857761C2 (fr) |
FR (2) | FR2418581A1 (fr) |
GB (1) | GB2016242B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0181316A2 (fr) * | 1984-10-05 | 1986-05-14 | Alcatel Austria Aktiengesellschaft | Disposition de circuit pour réseaux de télécommunication |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1123131A (fr) * | 1978-02-28 | 1982-05-04 | Michael C.J. Cowpland | Circuit de prolongement sans transformateur |
GB2120498B (en) * | 1982-04-29 | 1985-11-20 | Motorola Inc | Regulator circuit |
CA1182230A (fr) * | 1982-12-17 | 1985-02-05 | Patrick R. Beirne | Circuit d'interface pour ligne d'abonne |
US4503289A (en) * | 1983-01-17 | 1985-03-05 | At&T Bell Laboratories | Line circuit with flux compensation and active impedance termination |
US4591663A (en) * | 1983-11-17 | 1986-05-27 | Trad, Inc. | Servo-linearized opto-electronic analog interface |
US5172409A (en) * | 1990-07-02 | 1992-12-15 | Motorola, Inc. | Precision FET control loop |
GB0325301D0 (en) * | 2003-10-30 | 2003-12-03 | Mitel Networks Corp | Direct access arrangement |
US8385538B2 (en) * | 2008-12-10 | 2013-02-26 | Utc Fire & Security Americas Corporation, Inc. | Method, system, and apparatus for a differential transformer-free hybrid circuit |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4064377A (en) * | 1976-03-11 | 1977-12-20 | Wescom Switching, Inc. | Electronic hybrid and hybrid repeater |
FR2418581A1 (fr) * | 1978-02-28 | 1979-09-21 | Mitel Corp | Circuit de joncteur bidirectionnel sans transformateur |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2160308B1 (fr) * | 1971-11-19 | 1977-01-28 | Labo Cent Telecommunicat | |
US3889072A (en) * | 1973-10-19 | 1975-06-10 | Itt | Bi-directional amplification apparatus |
FR2251975B1 (fr) * | 1973-11-16 | 1979-08-03 | Labo Cent Telecommunicat | |
DE2431485C3 (de) * | 1974-07-01 | 1980-09-25 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schaltungsanordnung zur Gewinnung einer frequenzvariablen, massepotentialfreien und symmetrischen Ausgangsspannung in einem Gerät der elektrischen MeB- und Nachrichtentechnik |
FR2305080A1 (fr) * | 1975-03-20 | 1976-10-15 | Jeumont Schneider | Termineur electronique |
US3987257A (en) * | 1975-05-29 | 1976-10-19 | International Telephone And Telegraph Corporation | Optically coupled two-wire to four-wire hybrid lines |
FR2315811A1 (fr) * | 1975-06-27 | 1977-01-21 | Labo Cent Telecommunicat | Dipole electronique pour le bouclage d'une ligne telephonique |
DE2543861C3 (de) * | 1975-10-01 | 1981-06-25 | Nixdorf Computer Ag, 4790 Paderborn | Schaltung für eine zweirichtungsverstärkeranordnung in Fernmeldeanlagen, insbesondere Datenübertragungsanlagen, zur Sperrung des jeweiligen Verstärkereingangs gegen die Aufnahme abgehender Signale |
DE2543866B1 (de) * | 1975-10-01 | 1976-11-11 | Siemens Ag | Schaltungsanordnung fuer zweiadrige verbindungsleitungen in fernmelde-, insbesondere fernsprechanlagen, mit schleifenstromsignalisierung |
CH599731A5 (fr) * | 1976-03-02 | 1978-05-31 | Ibm | |
US4163878A (en) * | 1977-09-07 | 1979-08-07 | Wescom, Inc. | Electronic hybrid and hybrid repeater with bridge circuit |
US4174470A (en) * | 1978-10-10 | 1979-11-13 | Bell Telephone Laboratories, Incorporated | Electronic hybrid |
-
1978
- 1978-02-28 CA CA297,883A patent/CA1123131A/fr not_active Expired
- 1978-07-17 US US05/925,297 patent/US4182936A/en not_active Expired - Lifetime
- 1978-08-08 DE DE2857761A patent/DE2857761C2/de not_active Expired
- 1978-08-08 DE DE2834673A patent/DE2834673C2/de not_active Expired
- 1978-08-18 GB GB7833899A patent/GB2016242B/en not_active Expired
- 1978-08-18 JP JP53101376A patent/JPS6028477B2/ja not_active Expired
- 1978-12-08 FR FR7835484A patent/FR2418581A1/fr active Granted
-
1979
- 1979-07-09 FR FR7918179A patent/FR2457608B1/fr not_active Expired
- 1979-07-13 DE DE19792928309 patent/DE2928309A1/de active Granted
- 1979-08-23 US US06/069,054 patent/US4321431A/en not_active Expired - Lifetime
-
1980
- 1980-02-04 JP JP1295880A patent/JPS55158793A/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4064377A (en) * | 1976-03-11 | 1977-12-20 | Wescom Switching, Inc. | Electronic hybrid and hybrid repeater |
FR2418581A1 (fr) * | 1978-02-28 | 1979-09-21 | Mitel Corp | Circuit de joncteur bidirectionnel sans transformateur |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0181316A2 (fr) * | 1984-10-05 | 1986-05-14 | Alcatel Austria Aktiengesellschaft | Disposition de circuit pour réseaux de télécommunication |
EP0181316A3 (en) * | 1984-10-05 | 1988-05-25 | Alcatel Austria Aktiengesellschaft | Circuit arrangement for telephone networks |
Also Published As
Publication number | Publication date |
---|---|
JPS6223950B2 (fr) | 1987-05-26 |
JPS55158793A (en) | 1980-12-10 |
FR2418581A1 (fr) | 1979-09-21 |
US4321431A (en) | 1982-03-23 |
DE2928309A1 (de) | 1980-12-04 |
DE2834673A1 (de) | 1979-09-06 |
DE2857761C2 (de) | 1985-12-19 |
CA1123131A (fr) | 1982-05-04 |
GB2016242A (en) | 1979-09-19 |
DE2928309C2 (fr) | 1987-05-27 |
JPS6028477B2 (ja) | 1985-07-04 |
US4182936A (en) | 1980-01-08 |
JPS54118113A (en) | 1979-09-13 |
FR2457608B1 (fr) | 1985-10-25 |
DE2834673C2 (de) | 1982-08-19 |
FR2418581B1 (fr) | 1983-05-13 |
GB2016242B (en) | 1982-12-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |