IL26035A - מעגל קוי למערכת טלפון - Google Patents
מעגל קוי למערכת טלפוןInfo
- Publication number
- IL26035A IL26035A IL26035A IL2603566A IL26035A IL 26035 A IL26035 A IL 26035A IL 26035 A IL26035 A IL 26035A IL 2603566 A IL2603566 A IL 2603566A IL 26035 A IL26035 A IL 26035A
- Authority
- IL
- Israel
- Prior art keywords
- line circuit
- circuit according
- line
- network
- current
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
- H04Q3/52—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements
- H04Q3/521—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements using semiconductors in the switching stages
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US495155A US3410961A (en) | 1965-10-12 | 1965-10-12 | Line circuit for a telephone system having optical solid state means |
Publications (1)
Publication Number | Publication Date |
---|---|
IL26035A true IL26035A (he) | 1970-09-17 |
Family
ID=23967474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL26035A IL26035A (he) | 1965-10-12 | 1966-06-26 | מעגל קוי למערכת טלפון |
Country Status (9)
Country | Link |
---|---|
US (1) | US3410961A (he) |
JP (1) | JPS4318847B1 (he) |
BE (1) | BE682440A (he) |
DE (1) | DE1512073B2 (he) |
FR (1) | FR1484135A (he) |
GB (1) | GB1167741A (he) |
IL (1) | IL26035A (he) |
NL (1) | NL6613553A (he) |
SE (1) | SE339494B (he) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3534280A (en) * | 1966-12-30 | 1970-10-13 | Texas Instruments Inc | Opto thermal audio amplifier |
US3504131A (en) * | 1967-05-02 | 1970-03-31 | Bell Telephone Labor Inc | Switching network |
US3783198A (en) * | 1971-03-18 | 1974-01-01 | Gte Automatic Electric Lab Inc | Battery reversal detection |
US3750017A (en) * | 1971-09-16 | 1973-07-31 | Us Health | Electromagnetic field measuring device |
BE792984A (fr) * | 1971-12-20 | 1973-04-16 | Western Electric Co | Circuit de maintien de communication et de supervision |
US3767978A (en) * | 1972-03-17 | 1973-10-23 | A Wernli | Voltage-isolating, keying arrangement for a power-line carrier system |
US3819866A (en) * | 1972-12-18 | 1974-06-25 | Bell Telephone Labor Inc | Light coupled loop current detector |
US3867580A (en) * | 1972-12-29 | 1975-02-18 | Stromberg Carlson Corp | Receiving circuits for digital signal distribution systems |
JPS5199408A (he) * | 1975-02-28 | 1976-09-02 | Hitachi Ltd | |
US3987257A (en) * | 1975-05-29 | 1976-10-19 | International Telephone And Telegraph Corporation | Optically coupled two-wire to four-wire hybrid lines |
US4079205A (en) * | 1976-02-12 | 1978-03-14 | Cook Electric Company | Automatic number identification device |
CH599731A5 (he) * | 1976-03-02 | 1978-05-31 | Ibm | |
US4096363A (en) * | 1977-05-24 | 1978-06-20 | Bell Telephone Laboratories, Incorporated | Transmission network including flux compensation |
FR2422296A1 (fr) * | 1978-04-03 | 1979-11-02 | Duret Christian | Translateur electronique destine a un equipement de ligne d'abonne d'un reseau telephonique du genre spatial a points de connexion electroniques ou du genre temporel et circuit quadripole actif constituant un composant de ce translateur |
IT1159706B (it) * | 1978-06-02 | 1987-03-04 | Cselt Centro Studi Lab Telecom | Circuito telefonico elettronico di linea d'utente |
JPS5940358B2 (ja) * | 1978-10-18 | 1984-09-29 | 日本電信電話株式会社 | 通話路スイツチ回路 |
US4282604A (en) * | 1979-04-04 | 1981-08-04 | Jefferson William T | Optical isolation circuit for bidirectional communication lines |
US4282408A (en) * | 1979-10-25 | 1981-08-04 | Western Electric Company, Inc. | On-hook/off-hook detector circuit |
US4313225A (en) * | 1979-11-05 | 1982-01-26 | Bell Telephone Laboratories, Incorporated | Opto-isolator hybrid circuit |
US4479066A (en) * | 1980-03-28 | 1984-10-23 | At&T Bell Laboratories | AC/DC Current divider circuit |
DE3013533A1 (de) * | 1980-04-08 | 1981-10-15 | Siemens Ag | Schaltungsanordnung mit einer laserdiode zur uebertragung von nachrichtensiglnalen ueber einen lichtwellenleiter |
US4558183A (en) * | 1983-10-03 | 1985-12-10 | Cellutron Corporation | Opto-coupler interfacing circuit |
US4636655A (en) * | 1983-11-11 | 1987-01-13 | Kabushiki Kaisha Toshiba | Circuit in which output circuit and operational amplifier equipped input circuit are electrically isolated |
US4700379A (en) * | 1985-12-18 | 1987-10-13 | The Boeing Company | Aircraft communications apparatus |
US5946393A (en) * | 1997-02-10 | 1999-08-31 | Integration Associates, Inc. | Data access arrangement |
US6788782B1 (en) | 2000-01-20 | 2004-09-07 | 3Com Corporation | Method and apparatus for switching between multiple communication lines |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3129289A (en) * | 1959-06-26 | 1964-04-14 | Itt | Electronic line circuit |
US3230315A (en) * | 1962-06-04 | 1966-01-18 | Itt | Two-wire switching system for fourwire circuits |
DE1264513C2 (de) * | 1963-11-29 | 1973-01-25 | Texas Instruments Inc | Bezugspotentialfreier gleichstromdifferenzverstaerker |
-
1965
- 1965-10-12 US US495155A patent/US3410961A/en not_active Expired - Lifetime
-
1966
- 1966-06-13 BE BE682440D patent/BE682440A/xx unknown
- 1966-06-20 FR FR66112A patent/FR1484135A/fr not_active Expired
- 1966-06-26 IL IL26035A patent/IL26035A/he unknown
- 1966-09-26 NL NL6613553A patent/NL6613553A/xx unknown
- 1966-10-05 GB GB44452/66A patent/GB1167741A/en not_active Expired
- 1966-10-06 DE DE19661512073 patent/DE1512073B2/de active Pending
- 1966-10-07 JP JP6570866A patent/JPS4318847B1/ja active Pending
- 1966-10-11 SE SE13732/66*7A patent/SE339494B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
US3410961A (en) | 1968-11-12 |
BE682440A (he) | 1966-11-14 |
JPS4318847B1 (he) | 1968-08-16 |
DE1512073A1 (de) | 1969-06-19 |
DE1512073B2 (de) | 1971-09-30 |
NL6613553A (he) | 1967-04-13 |
FR1484135A (fr) | 1967-06-09 |
SE339494B (he) | 1971-10-11 |
GB1167741A (en) | 1969-10-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IL26035A (he) | מעגל קוי למערכת טלפון | |
US4056719A (en) | Two-way telephone transmission system utilizing opto-couplers | |
US4004109A (en) | Hybrid circuit | |
US7158729B2 (en) | Optical receiving device | |
US4282408A (en) | On-hook/off-hook detector circuit | |
US10079584B1 (en) | Closed-loop automatic gain control in linear burst-mode transimpedance amplifier | |
EP0572175A1 (en) | An improved transformer-less hybrid circuit | |
ITTO940462A1 (it) | Circuito in tecnologia cmos per il pilotaggo ad alta velocita' di sorgenti ottiche. | |
GB2060315A (en) | Interface circuit for telephone extension lines | |
GB1570829A (en) | Subscriber line interface circuit | |
KR900000945A (ko) | 고상 릴레이 | |
JPS59224946A (ja) | 通信システム | |
US6282001B1 (en) | Data access arrangement having improved transmit-receive separation | |
US4357495A (en) | Telephone line feed | |
US3504127A (en) | Direct current compensation circuit for transformer couplings | |
US4313225A (en) | Opto-isolator hybrid circuit | |
GB1563658A (en) | Interface circuits | |
US4064449A (en) | Direct current compensation circuit for transformers | |
US6272220B1 (en) | Electronically switched optically coupled line interface | |
US3170043A (en) | Telephone anti-sidetone circuit | |
US3816917A (en) | Telephone conference amplifier | |
JPS6025931B2 (ja) | 故障標定装置 | |
CA2312516C (en) | Infrared transceiver with isolated analog output | |
CA1062824A (en) | Two-way telephone transmission system utilizing opto-couplers | |
KR880002353A (ko) | 가입자 회로 |