DE69010259T2 - Gabelschaltung für eine Zweidraht-Übertragungsstrecke. - Google Patents

Gabelschaltung für eine Zweidraht-Übertragungsstrecke.

Info

Publication number
DE69010259T2
DE69010259T2 DE69010259T DE69010259T DE69010259T2 DE 69010259 T2 DE69010259 T2 DE 69010259T2 DE 69010259 T DE69010259 T DE 69010259T DE 69010259 T DE69010259 T DE 69010259T DE 69010259 T2 DE69010259 T2 DE 69010259T2
Authority
DE
Germany
Prior art keywords
transmission link
hybrid circuit
wire transmission
wire
hybrid
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69010259T
Other languages
English (en)
Other versions
DE69010259D1 (de
Inventor
Toshiyuki Okamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE69010259D1 publication Critical patent/DE69010259D1/de
Publication of DE69010259T2 publication Critical patent/DE69010259T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/58—Anti-side-tone circuits
    • H04M1/585—Anti-side-tone circuits implemented without inductive element
    • 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)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
DE69010259T 1989-04-18 1990-04-18 Gabelschaltung für eine Zweidraht-Übertragungsstrecke. Expired - Fee Related DE69010259T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1099513A JPH0773238B2 (ja) 1989-04-18 1989-04-18 ２線４線変換回路

Publications (2)

Publication Number Publication Date
DE69010259D1 DE69010259D1 (de) 1994-08-04
DE69010259T2 true DE69010259T2 (de) 1994-10-20

Family

ID=14249334

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69010259T Expired - Fee Related DE69010259T2 (de) 1989-04-18 1990-04-18 Gabelschaltung für eine Zweidraht-Übertragungsstrecke.

Country Status (4)

Country Link
US (1) US5295186A (de)
EP (1) EP0394012B1 (de)
JP (1) JPH0773238B2 (de)
DE (1) DE69010259T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE187029T1 (de) * 1993-09-02 1999-12-15 Siemens Ag Schaltungsanordnung zur erzeugung einer variablen leitungsabschlussimpedanz
US5515434A (en) * 1994-06-29 1996-05-07 Harris Corp Impedance setting circuit for a SLIC
DE69521197T2 (de) * 1995-04-11 2001-11-08 St Microelectronics Srl Sprechschaltung für eine Fernsprechstelle
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
US20040145376A1 (en) * 2003-01-24 2004-07-29 Sam Su Mi Network for facilitating determination of one or more characteristics of signal propagated via transmission line

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4377858A (en) * 1980-10-23 1983-03-22 International Telephone And Telegraph Corporation Digital two-to-four wire converter for full duplex signals
US4532384A (en) * 1983-02-04 1985-07-30 Northern Telecom Limited Line feed circuit including negative impedance circuit
DE3408384C2 (de) * 1983-03-11 1993-11-25 Nippon Telegraph & Telephone Schaltkreis zur Nachbildung einer Impedanz
DE3586696T2 (de) * 1984-05-30 1993-04-01 Hitachi Ltd Pcm-coder/decoder mit zweidraht/vierdrahtumwandlung.
AU604137B2 (en) * 1987-07-20 1990-12-06 Nec Corporation Echo canceller

Also Published As

Publication number Publication date
EP0394012B1 (de) 1994-06-29
EP0394012A1 (de) 1990-10-24
JPH0773238B2 (ja) 1995-08-02
US5295186A (en) 1994-03-15
DE69010259D1 (de) 1994-08-04
JPH02277322A (ja) 1990-11-13

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee