IL52705A0 - Bidirectional voice frequency repeater - Google Patents
Bidirectional voice frequency repeaterInfo
- Publication number
- IL52705A0 IL52705A0 IL52705A IL5270577A IL52705A0 IL 52705 A0 IL52705 A0 IL 52705A0 IL 52705 A IL52705 A IL 52705A IL 5270577 A IL5270577 A IL 5270577A IL 52705 A0 IL52705 A0 IL 52705A0
- Authority
- IL
- Israel
- Prior art keywords
- voice frequency
- frequency repeater
- bidirectional voice
- bidirectional
- repeater
- Prior art date
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
- 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
- H04B1/581—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 a transformer
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Amplifiers (AREA)
- Interface Circuits In Exchanges (AREA)
- Telephonic Communication Services (AREA)
- Networks Using Active Elements (AREA)
- Bidirectional Digital Transmission (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/714,306 US4074087A (en) | 1976-08-16 | 1976-08-16 | Bidirectional voice frequency repeater |
Publications (1)
Publication Number | Publication Date |
---|---|
IL52705A0 true IL52705A0 (en) | 1977-10-31 |
Family
ID=24869508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL52705A IL52705A0 (en) | 1976-08-16 | 1977-08-11 | Bidirectional voice frequency repeater |
Country Status (13)
Country | Link |
---|---|
US (1) | US4074087A (fr) |
JP (1) | JPS5323504A (fr) |
AU (1) | AU514331B2 (fr) |
BE (1) | BE857661A (fr) |
CA (1) | CA1084642A (fr) |
DE (1) | DE2736136C3 (fr) |
ES (1) | ES461618A1 (fr) |
FR (1) | FR2362535A1 (fr) |
GB (1) | GB1563541A (fr) |
IL (1) | IL52705A0 (fr) |
IT (1) | IT1084404B (fr) |
NL (1) | NL7708975A (fr) |
SE (1) | SE424127B (fr) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4174470A (en) * | 1978-10-10 | 1979-11-13 | Bell Telephone Laboratories, Incorporated | Electronic hybrid |
DE2911866C3 (de) * | 1979-03-26 | 1982-03-11 | Siemens AG, 1000 Berlin und 8000 München | Anordnung mit einer Gabelschaltung für den Zweidraht-Vierdraht-Übergang in PCM-Zeitmultiplexsystemen |
US4365119A (en) * | 1980-07-28 | 1982-12-21 | Bell Telephone Laboratories, Incorporated | Automatically adjustable bidirectional-to-unidirectional transmission network |
US4368361A (en) * | 1980-07-28 | 1983-01-11 | Bell Telephone Laboratories, Incorporated | Automatically adjustable bidirectional-to-unidirectional transmission network |
JPS5916434A (ja) * | 1982-07-19 | 1984-01-27 | Hitachi Ltd | 光通信方式 |
GB8404563D0 (en) * | 1984-02-21 | 1984-03-28 | Plessey Co Plc | Adaptive cancellation bridge circuit |
US4628157A (en) * | 1984-09-07 | 1986-12-09 | At&T Bell Laboratories | Bidirectional adaptive voice frequency repeater |
AT384919B (de) * | 1984-10-05 | 1988-01-25 | Alcatel Austria Ag | Schaltungsanordnung fuer fernsprechnetze |
US4896351A (en) * | 1985-06-27 | 1990-01-23 | Siemens Ag | Apparatus for separating dc current and ac current components of a composite signal |
CA1240088A (fr) * | 1985-11-20 | 1988-08-02 | Mitel Corporation | Circuit de liaison a semiconducteur |
CA1242541A (fr) * | 1985-11-25 | 1988-09-27 | Dany Sylvain | Elimination des echos dans les repeteurs pour voies de transmission bifilaires |
US5282157A (en) * | 1990-09-13 | 1994-01-25 | Telecom Analysis Systems, Inc. | Input impedance derived from a transfer network |
US5471527A (en) * | 1993-12-02 | 1995-11-28 | Dsc Communications Corporation | Voice enhancement system and method |
US5530396A (en) * | 1994-09-19 | 1996-06-25 | Center For Innovative Technology | Damped EMI input filter power factor correction circuits |
DE10147772C1 (de) * | 2001-09-27 | 2003-09-11 | Siemens Ag | Verfahren zum Betreiben eines Übertragungssystems und Übertragungssystem in einem Energieversorgungsnetz |
US7190194B2 (en) * | 2004-02-13 | 2007-03-13 | Nec Electronics Corporation | Active hybrid transformer circuit having a replica driver |
US7330545B2 (en) * | 2004-09-08 | 2008-02-12 | Analog Devices Inc. | Dual transformer hybrid system and method |
US7792196B2 (en) * | 2004-12-28 | 2010-09-07 | Intel Corporation | Single conductor bidirectional communication link |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2511948A (en) * | 1950-06-20 | Hybrid circuit | ||
US2945920A (en) * | 1958-01-17 | 1960-07-19 | Motorola Inc | Electronic hybrid |
US3586793A (en) * | 1968-06-21 | 1971-06-22 | John C Neal | Two way repeater |
US3904838A (en) * | 1971-06-04 | 1975-09-09 | Int Standard Electric Corp | Two-wire, bi-directional voice frequency repeater |
US3828146A (en) * | 1973-03-22 | 1974-08-06 | Bell Telephone Labor Inc | Time division conference hybrid circuit |
US3835259A (en) * | 1973-03-22 | 1974-09-10 | Bell Telephone Labor Inc | Time division conference hybrid circuit |
US3855431A (en) * | 1973-04-02 | 1974-12-17 | Itt | Electronic hybrid amplifier |
US3889072A (en) * | 1973-10-19 | 1975-06-10 | Itt | Bi-directional amplification apparatus |
US3973089A (en) * | 1973-10-29 | 1976-08-03 | General Electric Company | Adaptive hybrid circuit |
US3872266A (en) * | 1973-12-13 | 1975-03-18 | Magnetic Controls Co | Telephone monitor circuit |
US3970805A (en) * | 1974-02-22 | 1976-07-20 | Gte Automatic Electric (Canada) Limited | Active hybrid circuit |
US3934099A (en) * | 1974-08-16 | 1976-01-20 | Bell Telephone Laboratories, Incorporated | Bias, feedback and network arrangements for hybrid circuits |
-
1976
- 1976-08-16 US US05/714,306 patent/US4074087A/en not_active Expired - Lifetime
-
1977
- 1977-07-19 CA CA283,042A patent/CA1084642A/fr not_active Expired
- 1977-08-05 SE SE7708932A patent/SE424127B/xx not_active IP Right Cessation
- 1977-08-10 BE BE180061A patent/BE857661A/fr not_active IP Right Cessation
- 1977-08-10 FR FR7724614A patent/FR2362535A1/fr active Granted
- 1977-08-11 IT IT26650/77A patent/IT1084404B/it active
- 1977-08-11 AU AU27816/77A patent/AU514331B2/en not_active Expired
- 1977-08-11 IL IL52705A patent/IL52705A0/xx not_active IP Right Cessation
- 1977-08-11 DE DE2736136A patent/DE2736136C3/de not_active Expired
- 1977-08-12 JP JP9622877A patent/JPS5323504A/ja active Pending
- 1977-08-15 NL NL7708975A patent/NL7708975A/xx not_active Application Discontinuation
- 1977-08-16 GB GB34306/77A patent/GB1563541A/en not_active Expired
- 1977-08-16 ES ES461618A patent/ES461618A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US4074087A (en) | 1978-02-14 |
CA1084642A (fr) | 1980-08-26 |
DE2736136C3 (de) | 1981-09-24 |
GB1563541A (en) | 1980-03-26 |
AU514331B2 (en) | 1981-02-05 |
SE424127B (sv) | 1982-06-28 |
FR2362535B1 (fr) | 1981-07-10 |
DE2736136B2 (de) | 1980-12-04 |
NL7708975A (nl) | 1978-02-20 |
ES461618A1 (es) | 1978-07-01 |
SE7708932L (sv) | 1978-02-17 |
IT1084404B (it) | 1985-05-25 |
AU2781677A (en) | 1979-02-15 |
JPS5323504A (en) | 1978-03-04 |
BE857661A (fr) | 1977-12-01 |
FR2362535A1 (fr) | 1978-03-17 |
DE2736136A1 (de) | 1978-02-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RH | Patent void |