NL8204100A - Interferentie-opheffingsinrichting. - Google Patents

Interferentie-opheffingsinrichting. Download PDF

Info

Publication number
NL8204100A
NL8204100A NL8204100A NL8204100A NL8204100A NL 8204100 A NL8204100 A NL 8204100A NL 8204100 A NL8204100 A NL 8204100A NL 8204100 A NL8204100 A NL 8204100A NL 8204100 A NL8204100 A NL 8204100A
Authority
NL
Netherlands
Prior art keywords
signal
interference
replica
echo
preliminary
Prior art date
Application number
NL8204100A
Other languages
English (en)
Dutch (nl)
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 NL8204100A publication Critical patent/NL8204100A/nl

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • H04B3/237—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers using two adaptive filters, e.g. for near end and for end echo cancelling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • H04B3/238—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers using initial training sequence

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Radio Relay Systems (AREA)
NL8204100A 1981-10-23 1982-10-22 Interferentie-opheffingsinrichting. NL8204100A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31435381A 1981-10-23 1981-10-23
US31435381 1981-10-23

Publications (1)

Publication Number Publication Date
NL8204100A true NL8204100A (nl) 1983-05-16

Family

ID=23219622

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8204100A NL8204100A (nl) 1981-10-23 1982-10-22 Interferentie-opheffingsinrichting.

Country Status (8)

Country Link
JP (1) JPS5881345A (fr)
KR (1) KR840002178A (fr)
AU (1) AU8965582A (fr)
DE (1) DE3238550A1 (fr)
FR (1) FR2515453A1 (fr)
GB (1) GB2109208A (fr)
NL (1) NL8204100A (fr)
SE (1) SE8205841L (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1186764A (fr) * 1982-06-23 1985-05-07 Akira Kanemasa Eliminateur d'echos
EP0117626A3 (fr) * 1983-02-04 1985-12-18 Western Electric Company, Incorporated Filtres adaptatifs
GB8423017D0 (en) * 1984-09-12 1984-10-17 Plessey Co Plc Echo canceller
CA1238381A (fr) * 1985-03-14 1988-06-21 Ephraim Arnon Elimination d'echos multi-etage
US4868874A (en) * 1986-04-18 1989-09-19 Hitachi, Ltd. Echo canceller
US5471527A (en) 1993-12-02 1995-11-28 Dsc Communications Corporation Voice enhancement system and method
KR100586586B1 (ko) * 1999-12-18 2006-06-02 주식회사 케이티 간섭제거 가중치 가변방법

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1816153B2 (de) * 1968-12-20 1971-04-15 Schaltungsanordnung zur echounterdrueckung in einem sprech kreis auf einem vierdraht uebertragungssystem bei einem uebergang auf einen zweidrahtuebertragungsweg
US4057696A (en) * 1976-08-09 1977-11-08 Bell Telephone Laboratories, Incorporated Recursive-like adaptive echo canceller
EP0053202B1 (fr) * 1980-12-06 1985-03-27 Communications Satellite Corporation Détecteur de parole double pour suppresseurs d'écho

Also Published As

Publication number Publication date
SE8205841L (sv) 1983-04-24
JPS5881345A (ja) 1983-05-16
GB2109208A (en) 1983-05-25
AU8965582A (en) 1983-04-28
DE3238550A1 (de) 1983-06-30
FR2515453A1 (fr) 1983-04-29
SE8205841D0 (sv) 1982-10-14
KR840002178A (ko) 1984-06-11

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BV The patent application has lapsed