CA1164593A - Dispositif d'alimentation d'un poste d'abonne - Google Patents
Dispositif d'alimentation d'un poste d'abonneInfo
- Publication number
- CA1164593A CA1164593A CA000356296A CA356296A CA1164593A CA 1164593 A CA1164593 A CA 1164593A CA 000356296 A CA000356296 A CA 000356296A CA 356296 A CA356296 A CA 356296A CA 1164593 A CA1164593 A CA 1164593A
- Authority
- CA
- Canada
- Prior art keywords
- circuit
- output
- hand
- input
- reception
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 13
- 238000002955 isolation Methods 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims description 31
- 238000001514 detection method Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 241000219422 Urtica Species 0.000 description 2
- 235000009108 Urtica dioica Nutrition 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 101100129500 Caenorhabditis elegans max-2 gene Proteins 0.000 description 1
- 101100166829 Mus musculus Cenpk gene Proteins 0.000 description 1
- 208000032369 Primary transmission Diseases 0.000 description 1
- 208000032370 Secondary transmission Diseases 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- 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
- H04M19/003—Arrangements for compensation of the DC flux in line transformers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7918450 | 1979-07-17 | ||
| FR7918450A FR2462070A1 (fr) | 1979-07-17 | 1979-07-17 | Dispositif d'alimentation d'un poste d'abonne |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1164593A true CA1164593A (fr) | 1984-03-27 |
Family
ID=9227962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000356296A Expired CA1164593A (fr) | 1979-07-17 | 1980-07-16 | Dispositif d'alimentation d'un poste d'abonne |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4319093A (enExample) |
| EP (1) | EP0022561B1 (enExample) |
| JP (1) | JPS5650663A (enExample) |
| CA (1) | CA1164593A (enExample) |
| DE (1) | DE3064031D1 (enExample) |
| FI (1) | FI74175C (enExample) |
| FR (1) | FR2462070A1 (enExample) |
| IE (1) | IE50013B1 (enExample) |
| MX (1) | MX147723A (enExample) |
| PL (1) | PL130201B1 (enExample) |
| RO (1) | RO80984A (enExample) |
| ZA (1) | ZA804308B (enExample) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4468785A (en) * | 1981-06-10 | 1984-08-28 | Gould Inc. | Telemetry system with signal booster for digital data transmission through a transmission line |
| GB2104330A (en) * | 1981-08-19 | 1983-03-02 | Texas Instruments Ltd | Improvements in or relating to amplifiers |
| EP0078355B1 (fr) * | 1981-10-28 | 1985-07-31 | International Business Machines Corporation | Circuit d'interface comportant des moyens d'adaptation d'impédance |
| US4553247A (en) * | 1981-11-20 | 1985-11-12 | Gould Inc. | Telemetry system with signal booster for digital data transmission through a transmission line |
| FR2519218A1 (fr) * | 1981-12-24 | 1983-07-01 | Telecommunications Sa | Procede et dispositif d'alimentation d'une regie d'abonne |
| SE430198B (sv) * | 1982-02-09 | 1983-10-24 | Ellemtel Utvecklings Ab | Elektroniskt impedansanpassat linjeoverdrag |
| CA1179078A (en) * | 1982-06-04 | 1984-12-04 | Stanley D. Rosenbaum | Active impedance line feed circuit |
| CA1178386A (en) * | 1982-06-07 | 1984-11-20 | Stanley D. Rosenbaum | Active impedance transformer assisted line feed circuit |
| US4514595A (en) * | 1982-06-10 | 1985-04-30 | Northern Telecom Limited | Active impedance line feed circuit |
| DE3237652A1 (de) * | 1982-10-11 | 1984-04-12 | Siemens AG, 1000 Berlin und 8000 München | Fernsprechanlage |
| US4503289A (en) * | 1983-01-17 | 1985-03-05 | At&T Bell Laboratories | Line circuit with flux compensation and active impedance termination |
| DE3428106A1 (de) * | 1984-07-30 | 1986-02-06 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Teilnehmeranschlussschaltung |
| US4631362A (en) * | 1984-09-27 | 1986-12-23 | At&T Bell Laboratories | Low resistance origination scan circuit |
| FR2637142B1 (fr) * | 1988-09-28 | 1994-07-22 | Cit Alcatel | Dispositif de raccordement de ligne d'abonne |
| US5029203A (en) * | 1988-11-30 | 1991-07-02 | Rohm Co., Ltd. | Side tone preventive circuit for telephone |
| US4922531A (en) * | 1989-04-19 | 1990-05-01 | Northern Telecom Limited | Line interface circuit |
| US5333192A (en) * | 1990-06-26 | 1994-07-26 | Northern Telecom Limited | Line interface circuit |
| ATE117492T1 (de) * | 1990-07-13 | 1995-02-15 | Siemens Ag | Schaltungsanordnung zur dämpfung von dem speisestrom für teilnehmer-endgeräte eines digitalen zeitmultiplex-fernsprechsystems überlagerten störspannungen. |
| US5471527A (en) | 1993-12-02 | 1995-11-28 | Dsc Communications Corporation | Voice enhancement system and method |
| US5444777A (en) * | 1993-12-28 | 1995-08-22 | At&T Corp. | Battery feed for telephone line cards |
| FR2762177B1 (fr) * | 1997-04-10 | 1999-05-14 | Schlumberger Ind Sa | Circuit d'interface analogique pour equipement telephonique |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1236897A (en) * | 1969-06-18 | 1971-06-23 | Sits Soc It Telecom Siemens | Improvements in or relating to compensating circuits |
| FR2350018A1 (fr) * | 1976-04-27 | 1977-11-25 | Lannionnais Electronique | Dispositif d'alimentation de poste d'abonne |
| FR2355423A1 (fr) * | 1976-06-17 | 1978-01-13 | Jeumont Schneider | Equipement de ligne d'abonne pour central telephonique |
| US4103112A (en) * | 1977-10-17 | 1978-07-25 | Northern Telecom Limited | Telephone line circuit with differential loop current sensing and compensation |
| US4241239A (en) * | 1978-02-24 | 1980-12-23 | International Telephone And Telegraph Corporation | Fluxbucking line transformer with electronic equivalent line terminating impedance |
-
1979
- 1979-07-17 FR FR7918450A patent/FR2462070A1/fr active Granted
-
1980
- 1980-07-09 FI FI802205A patent/FI74175C/fi not_active IP Right Cessation
- 1980-07-10 DE DE8080103947T patent/DE3064031D1/de not_active Expired
- 1980-07-10 EP EP80103947A patent/EP0022561B1/fr not_active Expired
- 1980-07-15 PL PL1980225670A patent/PL130201B1/pl unknown
- 1980-07-16 CA CA000356296A patent/CA1164593A/fr not_active Expired
- 1980-07-16 US US06/169,255 patent/US4319093A/en not_active Expired - Lifetime
- 1980-07-16 RO RO80101720A patent/RO80984A/ro unknown
- 1980-07-16 ZA ZA00804308A patent/ZA804308B/xx unknown
- 1980-07-16 IE IE1478/80A patent/IE50013B1/en not_active IP Right Cessation
- 1980-07-16 MX MX183178A patent/MX147723A/es unknown
- 1980-07-17 JP JP9815480A patent/JPS5650663A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| MX147723A (es) | 1983-01-06 |
| FR2462070A1 (fr) | 1981-02-06 |
| FI802205A7 (fi) | 1981-01-18 |
| IE50013B1 (en) | 1986-01-22 |
| FR2462070B1 (enExample) | 1981-12-24 |
| PL225670A1 (enExample) | 1981-07-10 |
| IE801478L (en) | 1981-01-17 |
| DE3064031D1 (en) | 1983-08-11 |
| EP0022561B1 (fr) | 1983-07-06 |
| RO80984A (ro) | 1983-02-01 |
| FI74175C (fi) | 1987-12-10 |
| ZA804308B (en) | 1981-07-29 |
| FI74175B (fi) | 1987-08-31 |
| PL130201B1 (en) | 1984-07-31 |
| EP0022561A1 (fr) | 1981-01-21 |
| JPS5650663A (en) | 1981-05-07 |
| US4319093A (en) | 1982-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1164593A (fr) | Dispositif d'alimentation d'un poste d'abonne | |
| FR2485314A1 (fr) | Circuit de transmission en sortie de microphone | |
| DE3231108A1 (de) | Sprachuebertragungseinrichtung mit leitungsgespeistem empfaenger-konditionierungsschaltkreis | |
| US4541112A (en) | Electroacoustic transducer system | |
| FR2485309A1 (fr) | Circuit d'alimentation par batterie pour ligne telephonique | |
| US4004102A (en) | Automatic impedance modification of transmission lines | |
| KR890004531A (ko) | 송신기 회로, 전압-전류변환기 회로 및 전류 증폭기 회로 | |
| DE69225258T2 (de) | Lautsprech-Fernsprechgerät mit Rauschunterdrückungsschaltung | |
| DE3243818C2 (enExample) | ||
| DE2611472C3 (de) | Elektronische Vierdraht-Abschluß- Schaltung | |
| FR2500241A1 (fr) | Circuit d'alimentation par batterie pour une installation telephonique | |
| DE2826851B2 (de) | Schaltungsanordnung zum Einschalten eines örtlichen Rufsignalerzeugers | |
| US4119806A (en) | Subscriber's line equipment for a telephone exchange | |
| US3961202A (en) | Power supply circuit for use with an electrostatic transducer | |
| FI63506B (fi) | Krets med transformatorkopplad i obelastad tillstaond stabil negativ impedans | |
| CA1074935A (fr) | Equipement de ligne d'abonne pour central telephonique | |
| DE2131196B2 (de) | Aktive rueckhoerdaempfende schaltung fuer fernsprechapparate | |
| FR2579048A1 (fr) | Circuit de ligne a courant constant | |
| US3742153A (en) | Telephone circuit for sidetone balance and automatic transmission level adjustment | |
| US4135064A (en) | Impedance compensation of transmission line | |
| DE19526749A1 (de) | Schaltkreis und Verfahren zur Verringerung von Eigenecho in einem Empfangssignalpfad | |
| DE2501530A1 (de) | Verfahren und einrichtung zur automatischen anpassung der lautstaerke eines lautsprechers oder hoerers an den akustischen stoerpegel der umgebung | |
| FR2552288A1 (fr) | Joncteur d'abonne telephonique | |
| FR2575625A1 (fr) | Poste telephonique d'abonne a haut-parleur d'ecoute amplifiee avec reduction de gain en cas d'alimentation insuffisante | |
| DE3014187C2 (de) | Schaltungsanordnung zum zweidrähtigen Anschluß eines Fernsprechteilnehmers an je eine Leitung für angehende und ankommende Signale |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |