FI852355A0 - Foerfarande foer instaellning av utjaemningsimpedansen hos en gaffeltransformator. - Google Patents

Foerfarande foer instaellning av utjaemningsimpedansen hos en gaffeltransformator.

Info

Publication number
FI852355A0
FI852355A0 FI852355A FI852355A FI852355A0 FI 852355 A0 FI852355 A0 FI 852355A0 FI 852355 A FI852355 A FI 852355A FI 852355 A FI852355 A FI 852355A FI 852355 A0 FI852355 A0 FI 852355A0
Authority
FI
Finland
Prior art keywords
utjaemningsimpedansen
gaffeltransformator
hos
foerfarande foer
instaellning
Prior art date
Application number
FI852355A
Other languages
English (en)
Other versions
FI71857B (fi
FI71857C (fi
Inventor
Seppo Pyhaelammi
Original Assignee
Nokia Oy Ab
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 Nokia Oy Ab filed Critical Nokia Oy Ab
Priority to FI852355A priority Critical patent/FI71857C/fi
Publication of FI852355A0 publication Critical patent/FI852355A0/fi
Priority to FR868608489A priority patent/FR2583599B1/fr
Priority to SE8602634A priority patent/SE467031B/sv
Priority to US06/874,007 priority patent/US4807283A/en
Publication of FI71857B publication Critical patent/FI71857B/fi
Application granted granted Critical
Publication of FI71857C publication Critical patent/FI71857C/fi

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
    • H04B1/583—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 bridge network
    • H04B1/585—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 bridge network with automatic balancing
FI852355A 1985-06-13 1985-06-13 Foerfarande foer instaellning av utjaemningsimpedansen hos en gaffeltransformator. FI71857C (fi)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FI852355A FI71857C (fi) 1985-06-13 1985-06-13 Foerfarande foer instaellning av utjaemningsimpedansen hos en gaffeltransformator.
FR868608489A FR2583599B1 (fr) 1985-06-13 1986-06-12 Procede pour regler l'impedance d'equilibrage d'une jonction hybride
SE8602634A SE467031B (sv) 1985-06-13 1986-06-12 Foerfarande foer avstaemning av balanseringsimpedansen i en gaffelkoppling
US06/874,007 US4807283A (en) 1985-06-13 1986-06-12 Method for adjusting the balancing impedance of a hybrid junction

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI852355 1985-06-13
FI852355A FI71857C (fi) 1985-06-13 1985-06-13 Foerfarande foer instaellning av utjaemningsimpedansen hos en gaffeltransformator.

Publications (3)

Publication Number Publication Date
FI852355A0 true FI852355A0 (fi) 1985-06-13
FI71857B FI71857B (fi) 1986-10-31
FI71857C FI71857C (fi) 1987-02-09

Family

ID=8520978

Family Applications (1)

Application Number Title Priority Date Filing Date
FI852355A FI71857C (fi) 1985-06-13 1985-06-13 Foerfarande foer instaellning av utjaemningsimpedansen hos en gaffeltransformator.

Country Status (4)

Country Link
US (1) US4807283A (fi)
FI (1) FI71857C (fi)
FR (1) FR2583599B1 (fi)
SE (1) SE467031B (fi)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5133007A (en) * 1989-10-26 1992-07-21 Ricoh Company, Ltd. Side tone correction circuit
US5187742A (en) * 1990-01-12 1993-02-16 Codex Corporation Circuitry for interfacing telecommunications equipment to a communication channel
US5333192A (en) * 1990-06-26 1994-07-26 Northern Telecom Limited Line interface circuit
US5473685A (en) * 1992-07-31 1995-12-05 U.S. Philips Corporation Telecommunications end station with electrically controlled terminating impedance
US5528685A (en) * 1994-07-08 1996-06-18 At&T Corp. Transformerless hybrid circuit
US5667391A (en) * 1995-04-26 1997-09-16 Szczesny; David Stanley Electrical connector having a two part articulated housing
US6169762B1 (en) 1997-05-30 2001-01-02 Lucent Technologies Inc. Interface devices providing electrical isolation
EP1107464A1 (en) * 1999-12-06 2001-06-13 Alcatel Method and device for echo cancelling
DE10247208A1 (de) * 2002-10-10 2004-04-22 Infineon Technologies Ag Brückenschaltung zur Echounterdrückung in Kommunikationseinrichtungen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE462769A (fi) * 1944-04-04
GB1115215A (en) * 1967-02-24 1968-05-29 Standard Telephones Cables Ltd Two to four wire telephone hybrid transformers
US4278848A (en) * 1979-08-06 1981-07-14 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
DE3034568C2 (de) * 1980-09-10 1983-10-27 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur automatischen Anpassungssteuerung von Gabelschaltungen
GB2126732B (en) * 1982-09-02 1986-01-15 British Telecomm Impedance measurement in 4-wire to 2-wire converters
JPS59128892A (ja) * 1983-01-12 1984-07-25 Fujitsu Ltd 平衡回路網の自動可変方式
GB8404563D0 (en) * 1984-02-21 1984-03-28 Plessey Co Plc Adaptive cancellation bridge circuit

Also Published As

Publication number Publication date
FR2583599A1 (fr) 1986-12-19
SE8602634D0 (sv) 1986-06-12
SE467031B (sv) 1992-05-11
FI71857B (fi) 1986-10-31
FR2583599B1 (fr) 1989-07-13
SE8602634L (sv) 1986-12-14
FI71857C (fi) 1987-02-09
US4807283A (en) 1989-02-21

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: OY NOKIA AB