ES484232A1 - Dispositivo de separacion y de equilibrado de las vias de emision y de recepcion para instalacion telefonica - Google Patents
Dispositivo de separacion y de equilibrado de las vias de emision y de recepcion para instalacion telefonicaInfo
- Publication number
- ES484232A1 ES484232A1 ES484232A ES484232A ES484232A1 ES 484232 A1 ES484232 A1 ES 484232A1 ES 484232 A ES484232 A ES 484232A ES 484232 A ES484232 A ES 484232A ES 484232 A1 ES484232 A1 ES 484232A1
- Authority
- ES
- Spain
- Prior art keywords
- resistors
- separation
- network
- output
- 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
Links
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
- H04B1/586—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
- 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
- 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)
- Power Engineering (AREA)
- Interface Circuits In Exchanges (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Dispositivo de separación y de equilibrado de las vías de emisión y de recepción para instalación telefónica que incluye una red de conexión del tipo de hilos unidireccionales para conectar empalmes a aparatos, del tipo de dos hilos bidireccionales utilizados para la transmisión en fonía y para la alimentación del aparato en corriente continua, incluyendo dicho dispositivo equipos de separación y de equilibrado asociados a las líneas de aparato y a los empalmes.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7826822A FR2437116A1 (fr) | 1978-09-19 | 1978-09-19 | Dispositif de separation et d'equilibrage pour autocommutateurs telephoniques |
Publications (1)
Publication Number | Publication Date |
---|---|
ES484232A1 true ES484232A1 (es) | 1980-04-16 |
Family
ID=9212773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES484232A Expired ES484232A1 (es) | 1978-09-19 | 1979-09-18 | Dispositivo de separacion y de equilibrado de las vias de emision y de recepcion para instalacion telefonica |
Country Status (3)
Country | Link |
---|---|
US (1) | US4292479A (es) |
ES (1) | ES484232A1 (es) |
FR (1) | FR2437116A1 (es) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2478908B1 (es) * | 1980-03-21 | 1984-08-03 | Thomson Csf Mat Tel | |
CA1157125A (en) * | 1981-11-18 | 1983-11-15 | Nortel Networks Corporation | Electronic hybrid circuits |
GB8302673D0 (en) * | 1983-02-01 | 1983-03-02 | Motorola Inc | Borsht/slic auto balancing technique |
FR2564678B1 (fr) * | 1984-05-18 | 1986-09-12 | Thomson Csf Mat Tel | Interface de liaison de circuit d'abonne pour autocommutateur telephonique |
DE3586696T2 (de) * | 1984-05-30 | 1993-04-01 | Hitachi Ltd | Pcm-coder/decoder mit zweidraht/vierdrahtumwandlung. |
FR2577367B1 (fr) * | 1985-02-13 | 1988-03-11 | Alsatel Radio Telecommunicatio | Dispositif de communication radiotelephonique |
US4677667A (en) * | 1985-08-29 | 1987-06-30 | Gte Communication Systems Corporation | Subscriber line circuit having improved AC impedance matching |
JP2898165B2 (ja) * | 1993-04-16 | 1999-05-31 | シャープ株式会社 | ハイブリッド回路 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2063475A5 (es) * | 1969-10-17 | 1971-07-09 | Labo Cent Telecommunicat | |
DE2251444C2 (de) * | 1972-10-20 | 1983-07-14 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Koppelfeld-Anordnung zur breitbandigen Signalübertragung in Fernmeldeanlagen |
BR7408695D0 (pt) * | 1973-10-29 | 1975-08-26 | Gen Electric | Circuito hibrido ativo aperfeicoado |
US3973089A (en) * | 1973-10-29 | 1976-08-03 | General Electric Company | Adaptive hybrid circuit |
GB1515510A (en) * | 1974-11-27 | 1978-06-28 | Plessey Co Ltd | Transmission networks for telephone system |
GB1572595A (en) * | 1975-12-01 | 1980-07-30 | Post Office | Two-wire to four-wire converters |
US4041252A (en) * | 1976-06-07 | 1977-08-09 | North Electric Company | Transformerless two-wire/four-wire hybrid with DC sourcing capability |
US4053722A (en) * | 1976-10-04 | 1977-10-11 | The United States Of America As Represented By The Secretary Of The Navy | Solid state two-wire/four-wire converter with common battery |
-
1978
- 1978-09-19 FR FR7826822A patent/FR2437116A1/fr active Granted
-
1979
- 1979-09-14 US US06/075,799 patent/US4292479A/en not_active Expired - Lifetime
- 1979-09-18 ES ES484232A patent/ES484232A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2437116B1 (es) | 1984-01-20 |
US4292479A (en) | 1981-09-29 |
FR2437116A1 (fr) | 1980-04-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19970203 |