AU549938B2 - Digital communication - Google Patents

Digital communication

Info

Publication number
AU549938B2
AU549938B2 AU83816/82A AU8381682A AU549938B2 AU 549938 B2 AU549938 B2 AU 549938B2 AU 83816/82 A AU83816/82 A AU 83816/82A AU 8381682 A AU8381682 A AU 8381682A AU 549938 B2 AU549938 B2 AU 549938B2
Authority
AU
Australia
Prior art keywords
digital communication
digital
communication
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.)
Ceased
Application number
AU83816/82A
Other versions
AU8381682A (en
Inventor
Siegbert Hentschke
Peter Wildenauer
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.)
Alcatel Lucent NV
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of AU8381682A publication Critical patent/AU8381682A/en
Application granted granted Critical
Publication of AU549938B2 publication Critical patent/AU549938B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • 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)
  • Filters That Use Time-Delay Elements (AREA)
  • Bidirectional Digital Transmission (AREA)
AU83816/82A 1981-05-22 1982-05-19 Digital communication Ceased AU549938B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813120434 DE3120434A1 (en) 1981-05-22 1981-05-22 ADAPTIVE ECHOCOMPENSATION DEVICE FOR DIGITAL DUPLEX TRANSFER ON TWO-WIRE CABLES
DE31204341 1981-05-22

Publications (2)

Publication Number Publication Date
AU8381682A AU8381682A (en) 1982-11-25
AU549938B2 true AU549938B2 (en) 1986-02-20

Family

ID=6133005

Family Applications (1)

Application Number Title Priority Date Filing Date
AU83816/82A Ceased AU549938B2 (en) 1981-05-22 1982-05-19 Digital communication

Country Status (6)

Country Link
AU (1) AU549938B2 (en)
BE (1) BE893274A (en)
CH (1) CH657241A5 (en)
DE (1) DE3120434A1 (en)
GB (1) GB2102255B (en)
SE (1) SE447619B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU569977B2 (en) * 1983-02-18 1988-02-25 Kokusai Denshin Denwa Co. Ltd. Adaptive echo canceller
AU570668B2 (en) * 1983-01-31 1988-03-24 Telecommunications Radioelectriques Et Telephoniques T.R.T. Training an echo cancelling filter
AU571665B2 (en) * 1984-04-03 1988-04-21 Alcatel N.V. Duplex digital transmission system
AU614447B2 (en) * 1988-12-01 1991-08-29 Nec Corporation Echo canceller with means for determining filter coefficients from autocorrelation and cross-correlation coefficients

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE461308B (en) * 1988-06-03 1990-01-29 Ericsson Telefon Ab L M ADAPTIVE DIGITAL FILTER INCLUDING A NON-RECURSIVE PART AND A RECURSIVE PART
GB2362063A (en) * 2000-04-25 2001-11-07 Mitel Corp Connecting broadband voice and data signals to telephone systems

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087654A (en) * 1975-11-28 1978-05-02 Bell Telephone Laboratories, Incorporated Echo canceller for two-wire full duplex data transmission
SE416367B (en) * 1976-09-07 1980-12-15 Western Electric Co EKOELIMINERINGSANORDNING

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU570668B2 (en) * 1983-01-31 1988-03-24 Telecommunications Radioelectriques Et Telephoniques T.R.T. Training an echo cancelling filter
AU569977B2 (en) * 1983-02-18 1988-02-25 Kokusai Denshin Denwa Co. Ltd. Adaptive echo canceller
AU571665B2 (en) * 1984-04-03 1988-04-21 Alcatel N.V. Duplex digital transmission system
AU614447B2 (en) * 1988-12-01 1991-08-29 Nec Corporation Echo canceller with means for determining filter coefficients from autocorrelation and cross-correlation coefficients

Also Published As

Publication number Publication date
SE447619B (en) 1986-11-24
SE8203102L (en) 1982-11-23
CH657241A5 (en) 1986-08-15
BE893274A (en) 1982-11-24
AU8381682A (en) 1982-11-25
DE3120434A1 (en) 1982-12-16
GB2102255A (en) 1983-01-26
GB2102255B (en) 1985-01-09

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