AU8965582A - Line interference cancellation - Google Patents

Line interference cancellation

Info

Publication number
AU8965582A
AU8965582A AU89655/82A AU8965582A AU8965582A AU 8965582 A AU8965582 A AU 8965582A AU 89655/82 A AU89655/82 A AU 89655/82A AU 8965582 A AU8965582 A AU 8965582A AU 8965582 A AU8965582 A AU 8965582A
Authority
AU
Australia
Prior art keywords
interference cancellation
line interference
line
cancellation
interference
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.)
Abandoned
Application number
AU89655/82A
Inventor
Dietrich Anselm Alsberg
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Inc filed Critical Western Electric Co Inc
Publication of AU8965582A publication Critical patent/AU8965582A/en
Abandoned legal-status Critical Current

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
AU89655/82A 1981-10-23 1982-10-21 Line interference cancellation Abandoned AU8965582A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31435381A 1981-10-23 1981-10-23
US314353 1981-10-23

Publications (1)

Publication Number Publication Date
AU8965582A true AU8965582A (en) 1983-04-28

Family

ID=23219622

Family Applications (1)

Application Number Title Priority Date Filing Date
AU89655/82A Abandoned AU8965582A (en) 1981-10-23 1982-10-21 Line interference cancellation

Country Status (8)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1186764A (en) * 1982-06-23 1985-05-07 Akira Kanemasa Echo canceler
EP0117626A3 (en) * 1983-02-04 1985-12-18 Western Electric Company, Incorporated Improvements in or relating to adaptive filter arrangements
GB8423017D0 (en) * 1984-09-12 1984-10-17 Plessey Co Plc Echo canceller
CA1238381A (en) * 1985-03-14 1988-06-21 Ephraim Arnon Multi-stage echo canceller
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 (en) * 1999-12-18 2006-06-02 주식회사 케이티 Weight Varying Method for Interference Cancellation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1816153B2 (en) * 1968-12-20 1971-04-15 CIRCUIT ARRANGEMENT FOR ECHO SUPPRESSION IN A TALK CIRCUIT ON A FOUR WIRE TRANSMISSION SYSTEM IN THE CASE OF A TRANSITION TO A TWO WIRE TRANSMISSION PATH
US4057696A (en) * 1976-08-09 1977-11-08 Bell Telephone Laboratories, Incorporated Recursive-like adaptive echo canceller
EP0053202B1 (en) * 1980-12-06 1985-03-27 Communications Satellite Corporation Improved double talk detector for echo cancellers

Also Published As

Publication number Publication date
NL8204100A (en) 1983-05-16
JPS5881345A (en) 1983-05-16
DE3238550A1 (en) 1983-06-30
KR840002178A (en) 1984-06-11
SE8205841D0 (en) 1982-10-14
FR2515453A1 (en) 1983-04-29
SE8205841L (en) 1983-04-24
GB2109208A (en) 1983-05-25

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