IT1041578B - Rete di bilanciamento per ripetitori telefonici a frequenza vocale - Google Patents

Rete di bilanciamento per ripetitori telefonici a frequenza vocale

Info

Publication number
IT1041578B
IT1041578B IT69098/75A IT6909875A IT1041578B IT 1041578 B IT1041578 B IT 1041578B IT 69098/75 A IT69098/75 A IT 69098/75A IT 6909875 A IT6909875 A IT 6909875A IT 1041578 B IT1041578 B IT 1041578B
Authority
IT
Italy
Prior art keywords
voice frequency
balancing network
frequency telephone
telephone repeaters
repeaters
Prior art date
Application number
IT69098/75A
Other languages
English (en)
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
Application granted granted Critical
Publication of IT1041578B publication Critical patent/IT1041578B/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
    • H04B1/581—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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/40—Artificial lines; Networks simulating a line of certain length

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Networks Using Active Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
IT69098/75A 1974-08-19 1975-08-18 Rete di bilanciamento per ripetitori telefonici a frequenza vocale IT1041578B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US498407A US3919502A (en) 1974-08-19 1974-08-19 Balancing network for voice frequency telephone repeaters

Publications (1)

Publication Number Publication Date
IT1041578B true IT1041578B (it) 1980-01-10

Family

ID=23980963

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69098/75A IT1041578B (it) 1974-08-19 1975-08-18 Rete di bilanciamento per ripetitori telefonici a frequenza vocale

Country Status (10)

Country Link
US (1) US3919502A (it)
JP (1) JPS5145952A (it)
BE (1) BE832403A (it)
CA (1) CA1028437A (it)
DE (1) DE2536510A1 (it)
FR (1) FR2282755A1 (it)
GB (1) GB1509080A (it)
IT (1) IT1041578B (it)
NL (1) NL7509805A (it)
SE (1) SE410686B (it)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174470A (en) * 1978-10-10 1979-11-13 Bell Telephone Laboratories, Incorporated Electronic hybrid
US4181824A (en) * 1978-10-10 1980-01-01 Bell Telephone Laboratories, Incorporated Balancing impedance circuit
DE2906084C2 (de) * 1979-02-15 1981-10-08 Deutsche Telephonwerke Und Kabelindustrie Ag, 1000 Berlin Schaltungsanordnung zur Übertragung von sprachfrequenten Signalen in Fernsprechanlagen
US4273963A (en) * 1979-05-25 1981-06-16 Bell Telephone Laboratories, Incorporated Automatic equalization for digital transmission systems
US5305378A (en) * 1980-01-07 1994-04-19 Telefonaktiebolaget Lm Ericsson Arrangement for adjusting an adaptive digital filter included in a subscriber unit
FR2485842B1 (fr) * 1980-06-30 1988-02-26 Cit Alcatel Dispositif de separation des voies emission et reception d'une transmission de donnees en duplex integral
US4395599A (en) * 1980-11-28 1983-07-26 Bell Telephone Laboratories, Incorporated Driving point impedance derived from a transfer impedance
US4607141A (en) * 1984-03-05 1986-08-19 Rockwell International Corporation Active network termination circuit
US4607140A (en) * 1984-03-05 1986-08-19 Rockwell International Corp. Build out capacitor circuit
US4791668A (en) * 1987-09-23 1988-12-13 Northern Telecom Limited Selectable impedance line interface circuit
JP3060993B2 (ja) * 1997-05-15 2000-07-10 日本電気株式会社 オーダワイヤ収容方式
US7145943B2 (en) * 2000-01-25 2006-12-05 Sbc Knowledge Ventures, L.P. XDSL system with improved impedance circuitry

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2983875A (en) * 1958-04-18 1961-05-09 Philco Corp Emitter-follower coupled multisection filter circuit
DE1151021B (de) * 1962-03-30 1963-07-04 Siemens Ag Universalnachbildung mit einstellbaren Schaltelementen
US3401352A (en) * 1966-12-29 1968-09-10 Bell Telephone Labor Inc Two-port network for realizing transfer functions
DE1298142B (de) * 1967-09-27 1969-06-26 Siemens Ag Schaltungsanordnung zur Nachbildung von Scheinwiderstaenden unbespulter Kabel
US3643184A (en) * 1969-11-17 1972-02-15 John R D Alessandro Multiport feedback and polezero control
US3754196A (en) * 1972-02-17 1973-08-21 Ncr Communications bridge for impedance matching of a plurality of lines

Also Published As

Publication number Publication date
SE7508869L (sv) 1976-02-20
FR2282755A1 (fr) 1976-03-19
JPS5145952A (it) 1976-04-19
CA1028437A (en) 1978-03-21
NL7509805A (nl) 1976-02-23
DE2536510A1 (de) 1976-03-04
SE410686B (sv) 1979-10-22
FR2282755B1 (it) 1979-02-02
US3919502A (en) 1975-11-11
BE832403A (fr) 1975-12-01
GB1509080A (en) 1978-04-26

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