AU8965682A - Line interference cancellation - Google Patents

Line interference cancellation

Info

Publication number
AU8965682A
AU8965682A AU89656/82A AU8965682A AU8965682A AU 8965682 A AU8965682 A AU 8965682A AU 89656/82 A AU89656/82 A AU 89656/82A AU 8965682 A AU8965682 A AU 8965682A AU 8965682 A AU8965682 A AU 8965682A
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
AU89656/82A
Inventor
Dietrich Anselm Alsberg
Robert Paul Coulter
Thomas H. Curtis
Geng-Seng Fang
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 AU8965682A publication Critical patent/AU8965682A/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
    • H04B3/234—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 double talk detection
    • 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
AU89656/82A 1981-10-23 1982-10-21 Line interference cancellation Abandoned AU8965682A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31449081A 1981-10-23 1981-10-23
US314490 1981-10-23

Publications (1)

Publication Number Publication Date
AU8965682A true AU8965682A (en) 1983-04-28

Family

ID=23220171

Family Applications (1)

Application Number Title Priority Date Filing Date
AU89656/82A Abandoned AU8965682A (en) 1981-10-23 1982-10-21 Line interference cancellation

Country Status (8)

Country Link
JP (1) JPS5881346A (en)
KR (1) KR840002179A (en)
AU (1) AU8965682A (en)
DE (1) DE3238564A1 (en)
FR (1) FR2515454A1 (en)
GB (1) GB2109207A (en)
NL (1) NL8204096A (en)
SE (1) SE8205839L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
AU614447B2 (en) * 1988-12-01 1991-08-29 Nec Corporation Echo canceller with means for determining filter coefficients from autocorrelation and cross-correlation coefficients
US5471527A (en) 1993-12-02 1995-11-28 Dsc Communications Corporation Voice enhancement system and method
US5631899A (en) * 1995-05-31 1997-05-20 Lucent Technologies Inc. Acoustic echo canceler
GB2308283A (en) * 1995-12-16 1997-06-18 Ibm System and method for echo cancellation

Family Cites Families (4)

* 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
US4282411A (en) * 1979-06-04 1981-08-04 Tellabs, Inc. Residual echo suppressor for echo canceller
JPS56153850A (en) * 1980-04-28 1981-11-28 Kokusai Denshin Denwa Co Ltd <Kdd> Echo control system
FR2487144B1 (en) * 1980-07-21 1986-10-24 Trt Telecom Radio Electr DEVICE FOR CANCELING A COMPOSITE ECHO SIGNAL

Also Published As

Publication number Publication date
NL8204096A (en) 1983-05-16
DE3238564A1 (en) 1983-05-05
FR2515454A1 (en) 1983-04-29
GB2109207A (en) 1983-05-25
JPS5881346A (en) 1983-05-16
KR840002179A (en) 1984-06-11
SE8205839D0 (en) 1982-10-14
SE8205839L (en) 1983-04-24

Similar Documents

Publication Publication Date Title
AU559431B2 (en) Adaptable value-token
AU551769B2 (en) Imidazodiazepines
AU551891B2 (en) Imidazodiazepines
AU561395B2 (en) 3-amino-benzazepin-2-ones
AU551756B2 (en) Imidazodiazepines
AU548397B2 (en) N-phenylsulphonyl-n:-pyrimidinyl-and-triazinyl-ureas
AU570635B2 (en) Echo cancellation
AU549409B2 (en) Polyetheresterimide
AU549410B2 (en) Polyetheresterimide
AU553589B2 (en) Benzoheterocycles
AU557714B2 (en) 2-arylimidazopyridines
AU551831B2 (en) Imidazodiazepines
AU583711B2 (en) 5-trifluoromethylpyridyl-2-oxyanilines
AU550571B2 (en) Co-nitration
AU546185B2 (en) Levitationarium
AU547405B2 (en) Amidobenzamides
AU564233B2 (en) N-substituted-2-pyridylindoles
AU545678B2 (en) Sleeper-tamper
AU529966B2 (en) Washer-dehydrator
AU8965582A (en) Line interference cancellation
AU8965482A (en) Line interference cancellation
AU8965682A (en) Line interference cancellation
AU565320B2 (en) Pyridobenzodiazepines
AU8873282A (en) Radar interference canceller
AU556935B2 (en) Azolyl-pentene-3-ones and -3-ols