IT7926319A0 - Circuito elettronico ibrido adattativo sensibile alla frequenza per impianti di trasmissione bilaterali. - Google Patents

Circuito elettronico ibrido adattativo sensibile alla frequenza per impianti di trasmissione bilaterali.

Info

Publication number
IT7926319A0
IT7926319A0 IT7926319A IT2631979A IT7926319A0 IT 7926319 A0 IT7926319 A0 IT 7926319A0 IT 7926319 A IT7926319 A IT 7926319A IT 2631979 A IT2631979 A IT 2631979A IT 7926319 A0 IT7926319 A0 IT 7926319A0
Authority
IT
Italy
Prior art keywords
electronic circuit
transmission systems
hybrid electronic
frequency sensitive
adaptive hybrid
Prior art date
Application number
IT7926319A
Other languages
English (en)
Other versions
IT1124585B (it
Inventor
Seidel Harold
Original Assignee
Western Electric Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Western Electric Co filed Critical Western Electric Co
Publication of IT7926319A0 publication Critical patent/IT7926319A0/it
Application granted granted Critical
Publication of IT1124585B publication Critical patent/IT1124585B/it

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Networks Using Active Elements (AREA)
  • Interface Circuits In Exchanges (AREA)
IT26319/79A 1978-10-10 1979-10-08 Circuito elettronico ibrido adattativo sensibile alla frequenza per impianti di trasmissione bilaterali IT1124585B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/949,577 US4174470A (en) 1978-10-10 1978-10-10 Electronic hybrid

Publications (2)

Publication Number Publication Date
IT7926319A0 true IT7926319A0 (it) 1979-10-08
IT1124585B IT1124585B (it) 1986-05-07

Family

ID=25489270

Family Applications (1)

Application Number Title Priority Date Filing Date
IT26319/79A IT1124585B (it) 1978-10-10 1979-10-08 Circuito elettronico ibrido adattativo sensibile alla frequenza per impianti di trasmissione bilaterali

Country Status (14)

Country Link
US (1) US4174470A (it)
JP (1) JPS55500804A (it)
AU (1) AU526596B2 (it)
BE (1) BE879280A (it)
CA (1) CA1136229A (it)
DE (1) DE2953174C2 (it)
ES (1) ES484854A1 (it)
FR (1) FR2438941A1 (it)
GB (1) GB2043408B (it)
IL (1) IL58393A (it)
IT (1) IT1124585B (it)
NL (1) NL7920114A (it)
SE (1) SE428856B (it)
WO (1) WO1980000769A1 (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1123131A (en) * 1978-02-28 1982-05-04 Michael C.J. Cowpland Transformerless trunk circuit
JPS54136253A (en) * 1978-04-14 1979-10-23 Nec Corp Adaptive type electronic hybrid circuit
US4273963A (en) * 1979-05-25 1981-06-16 Bell Telephone Laboratories, Incorporated Automatic equalization for digital transmission systems
DE3019835C2 (de) * 1980-05-23 1983-12-01 Siemens AG, 1000 Berlin und 8000 München Übertragerfreie Gabelschaltung
US4377858A (en) * 1980-10-23 1983-03-22 International Telephone And Telegraph Corporation Digital two-to-four wire converter for full duplex signals
US4381561A (en) * 1980-10-23 1983-04-26 International Telephone And Telegraph Corporation All digital LSI line circuit for analog lines
US4322586A (en) * 1980-11-13 1982-03-30 Northern Telecom Limited Transformerless line interface circuit
JPS5895488A (ja) * 1981-12-02 1983-06-07 Hitachi Ltd ライン回路
US5822426A (en) * 1995-06-06 1998-10-13 International Business Machines Corporation Balanced hybrid circuit
US6681012B1 (en) 1999-09-23 2004-01-20 Nortel Networks Limited Directional receiver coupling arrangement with frequency selectivity and gain control for DSL
US6788745B1 (en) * 1999-11-17 2004-09-07 Fujitsu Limited Circuit and method for active termination of a transmission line
KR20020096008A (ko) * 2001-06-19 2002-12-28 엘지전자 주식회사 안테나 정합 회로망
US8385538B2 (en) * 2008-12-10 2013-02-26 Utc Fire & Security Americas Corporation, Inc. Method, system, and apparatus for a differential transformer-free hybrid circuit

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3178521A (en) * 1962-11-15 1965-04-13 Bell Telephone Labor Inc Dynamically balanced telephone network
US3530260A (en) * 1966-12-23 1970-09-22 Bell Telephone Labor Inc Transistor hybrid circuit
GB1115216A (en) * 1967-02-28 1968-05-29 Standard Telephones Cables Ltd Hybrid transformer
FR2160308B1 (it) * 1971-11-19 1977-01-28 Labo Cent Telecommunicat
US3778563A (en) * 1972-03-29 1973-12-11 Lear Siegler Inc Voice frequency repeater
US3973089A (en) * 1973-10-29 1976-08-03 General Electric Company Adaptive hybrid circuit
US3970805A (en) * 1974-02-22 1976-07-20 Gte Automatic Electric (Canada) Limited Active hybrid circuit
US3919502A (en) * 1974-08-19 1975-11-11 Bell Telephone Labor Inc Balancing network for voice frequency telephone repeaters
US3982080A (en) * 1975-01-16 1976-09-21 Bell Telephone Laboratories, Incorporated Automatic cable balancing network
US4004109A (en) * 1975-05-09 1977-01-18 Boxall Frank S Hybrid circuit
US4064377A (en) * 1976-03-11 1977-12-20 Wescom Switching, Inc. Electronic hybrid and hybrid repeater
US4074087A (en) * 1976-08-16 1978-02-14 Bell Telephone Laboratories, Incorporated Bidirectional voice frequency repeater
US4096361A (en) * 1977-06-20 1978-06-20 Bell Telephone Laboratories, Incorporated Test apparatus for obtaining impedance settings for hybrid balance networks
US4163878A (en) * 1977-09-07 1979-08-07 Wescom, Inc. Electronic hybrid and hybrid repeater with bridge circuit

Also Published As

Publication number Publication date
FR2438941A1 (fr) 1980-05-09
US4174470A (en) 1979-11-13
DE2953174C2 (de) 1986-05-15
WO1980000769A1 (en) 1980-04-17
DE2953174A1 (en) 1980-12-04
IL58393A (en) 1981-12-31
JPS55500804A (it) 1980-10-16
ES484854A1 (es) 1980-05-16
AU5159679A (en) 1980-04-17
SE428856B (sv) 1983-07-25
NL7920114A (nl) 1980-08-29
CA1136229A (en) 1982-11-23
IL58393A0 (en) 1980-01-31
BE879280A (fr) 1980-02-01
GB2043408A (en) 1980-10-01
IT1124585B (it) 1986-05-07
GB2043408B (en) 1983-01-26
SE8004258L (sv) 1980-06-06
AU526596B2 (en) 1983-01-20
FR2438941B1 (it) 1985-01-11

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