FR2498851B1 - Circuit d'interface de ligne d'abonne - Google Patents
Circuit d'interface de ligne d'abonneInfo
- Publication number
- FR2498851B1 FR2498851B1 FR8123546A FR8123546A FR2498851B1 FR 2498851 B1 FR2498851 B1 FR 2498851B1 FR 8123546 A FR8123546 A FR 8123546A FR 8123546 A FR8123546 A FR 8123546A FR 2498851 B1 FR2498851 B1 FR 2498851B1
- Authority
- FR
- France
- Prior art keywords
- interface circuit
- subscriber line
- line interface
- subscriber
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Amplifiers (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA396226 | 1981-01-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2498851A1 FR2498851A1 (fr) | 1982-07-30 |
FR2498851B1 true FR2498851B1 (fr) | 1986-06-13 |
Family
ID=4122058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8123546A Expired FR2498851B1 (fr) | 1981-01-23 | 1981-12-11 | Circuit d'interface de ligne d'abonne |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE3142201C2 (fr) |
FR (1) | FR2498851B1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1240088A (fr) * | 1985-11-20 | 1988-08-02 | Mitel Corporation | Circuit de liaison a semiconducteur |
KR880002353A (ko) * | 1986-07-08 | 1988-04-30 | 아오이 죠이찌 | 가입자 회로 |
JP2645022B2 (ja) * | 1987-08-21 | 1997-08-25 | 株式会社東芝 | 加入者回路 |
DE3942757A1 (de) * | 1989-12-23 | 1991-06-27 | Standard Elektrik Lorenz Ag | Summierverstaerker mit einem komplexen gewichtungsfaktor und schnittstelle mit einem solchen summierverstaerker |
DE19733250A1 (de) * | 1997-08-01 | 1999-02-04 | Deutsche Telephonwerk Kabel | Schaltungsanordnung für eine Netzabschlußeinheit |
DE19807074A1 (de) | 1998-02-20 | 1999-09-02 | Philips Patentverwaltung | Gabelverstärker |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3970805A (en) * | 1974-02-22 | 1976-07-20 | Gte Automatic Electric (Canada) Limited | Active hybrid circuit |
FR2305080A1 (fr) * | 1975-03-20 | 1976-10-15 | Jeumont Schneider | Termineur electronique |
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 |
NL7904159A (nl) * | 1979-05-28 | 1980-12-02 | Philips Nv | Inrichting voor het toevoeren van signalen aan een telefoonlijn. |
-
1981
- 1981-10-24 DE DE19813142201 patent/DE3142201C2/de not_active Expired
- 1981-12-11 FR FR8123546A patent/FR2498851B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3142201A1 (de) | 1982-09-02 |
FR2498851A1 (fr) | 1982-07-30 |
DE3142201C2 (de) | 1984-02-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |