SE8602634L - Forfarande for avstemning av balanseringsimpedansen i en gaffelkoppling - Google Patents

Forfarande for avstemning av balanseringsimpedansen i en gaffelkoppling

Info

Publication number
SE8602634L
SE8602634L SE8602634A SE8602634A SE8602634L SE 8602634 L SE8602634 L SE 8602634L SE 8602634 A SE8602634 A SE 8602634A SE 8602634 A SE8602634 A SE 8602634A SE 8602634 L SE8602634 L SE 8602634L
Authority
SE
Sweden
Prior art keywords
hybrid
maximization
balancing impedance
attenuation
resistor
Prior art date
Application number
SE8602634A
Other languages
Unknown language ( )
English (en)
Other versions
SE8602634D0 (sv
SE467031B (sv
Inventor
S Pyhelammi
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
Publication of SE8602634D0 publication Critical patent/SE8602634D0/sv
Publication of SE8602634L publication Critical patent/SE8602634L/sv
Publication of SE467031B publication Critical patent/SE467031B/sv

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
SE8602634A 1985-06-13 1986-06-12 Foerfarande foer avstaemning av balanseringsimpedansen i en gaffelkoppling SE467031B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI852355A FI71857C (sv) 1985-06-13 1985-06-13 Förfarande för inställning av utjämningsimpedansen hos en gaffeltransf ormator.

Publications (3)

Publication Number Publication Date
SE8602634D0 SE8602634D0 (sv) 1986-06-12
SE8602634L true SE8602634L (sv) 1986-12-14
SE467031B SE467031B (sv) 1992-05-11

Family

ID=8520978

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8602634A SE467031B (sv) 1985-06-13 1986-06-12 Foerfarande foer avstaemning av balanseringsimpedansen i en gaffelkoppling

Country Status (4)

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

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 (sv) * 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
FR2583599B1 (fr) 1989-07-13
FR2583599A1 (fr) 1986-12-19
FI71857C (sv) 1987-02-09
SE8602634D0 (sv) 1986-06-12
FI71857B (fi) 1986-10-31
SE467031B (sv) 1992-05-11
FI852355A0 (fi) 1985-06-13
US4807283A (en) 1989-02-21

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