BE705968A - - Google Patents

Info

Publication number
BE705968A
BE705968A BE705968DA BE705968A BE 705968 A BE705968 A BE 705968A BE 705968D A BE705968D A BE 705968DA BE 705968 A BE705968 A BE 705968A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE705968A publication Critical patent/BE705968A/xx

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
    • H04B3/238—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)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Telephonic Communication Services (AREA)
BE705968D 1966-10-31 1967-10-31 BE705968A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US59058166A 1966-10-31 1966-10-31

Publications (1)

Publication Number Publication Date
BE705968A true BE705968A (xx) 1968-03-01

Family

ID=24362817

Family Applications (1)

Application Number Title Priority Date Filing Date
BE705968D BE705968A (xx) 1966-10-31 1967-10-31

Country Status (6)

Country Link
US (1) US3535473A (xx)
BE (1) BE705968A (xx)
DE (1) DE1537739B2 (xx)
GB (1) GB1205938A (xx)
NL (1) NL161638C (xx)
SE (1) SE323109B (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1957637A1 (de) * 1968-11-21 1971-02-04 Nippon Electric Co Echounterdruecker

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732410A (en) * 1969-12-22 1973-05-08 Postmaster Department Res Labo Self adaptive filter and control circuit therefor
NL163926C (nl) * 1970-03-12 1980-10-15 Siemens Ag Groep van echo-onderdrukkingsinrichtingen.
US3735055A (en) * 1971-11-05 1973-05-22 Bell Telephone Labor Inc Method for improving the settling time of a transversal filter adaptive echo canceller
US3721777A (en) * 1971-11-26 1973-03-20 Bell Telephone Labor Inc Echo path delay simulator for use with adaptive echo cancellers
US4057696A (en) * 1976-08-09 1977-11-08 Bell Telephone Laboratories, Incorporated Recursive-like adaptive echo canceller
NO140648C (no) * 1977-10-24 1983-03-29 Elektrisk Bureau As Direktiv kobler.
IT1144154B (it) * 1981-03-09 1986-10-29 Cselt Centro Studi Lab Telecom Sistema di trasmissione simultanea bidirezionale su linea a due conduttori per telefono numerico
US4582963A (en) * 1982-07-29 1986-04-15 Rockwell International Corporation Echo cancelling using adaptive bulk delay and filter
US4587382A (en) * 1982-07-29 1986-05-06 Gte Lenkurt Incorporated Echo canceller using end delay measurement
US4562312A (en) * 1983-02-17 1985-12-31 At&T Bell Laboratories Subsampling delay estimator for an echo canceler
IT1208769B (it) * 1983-10-12 1989-07-10 Cselt Centro Studi Lab Telecom Teristiche varianti nel tempo procedimento e dispositivo per la cancellazione numerica dell eco generato in collegamenti con carat
EP0221221B1 (en) * 1985-10-30 1991-12-27 International Business Machines Corporation A process for determining an echo path flat delay and echo canceler using said process
US4811342A (en) * 1985-11-12 1989-03-07 Racal Data Communications Inc. High speed analog echo canceller
US4805215A (en) * 1986-10-01 1989-02-14 Racal Data Communications Inc. Adaptive echo canceller with sparse dynamically positioned taps
US4823382A (en) * 1986-10-01 1989-04-18 Racal Data Communications Inc. Echo canceller with dynamically positioned adaptive filter taps
US4970715A (en) * 1987-03-27 1990-11-13 Universal Data Systems, Inc. Modem with improved remote echo location and cancellation
JPH08265224A (ja) * 1995-03-22 1996-10-11 Nec Corp エコーキャンセラ
US5933494A (en) * 1995-12-07 1999-08-03 Rockwell International Corporation Echo canceling method and apparatus in a communication device
US7164659B2 (en) * 1999-12-09 2007-01-16 Broadcom Corporation Adaptive gain control based on echo canceller performance information
US6711216B2 (en) * 2001-06-28 2004-03-23 Intel Corporation Method and apparatus for an ultra-wideband radio utilizing MEMS filtering

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2825764A (en) * 1954-02-24 1958-03-04 Bell Telephone Labor Inc Cross-control compandor used as echo suppressors
US2990457A (en) * 1958-02-04 1961-06-27 Bell Telephone Labor Inc Tandem echo suppressor circuits
DE1283293B (de) * 1964-09-10 1968-11-21 Nippon Electric Co Echounterdrueckungsschaltung fuer eine Weitverkehrsnachrichtenverbindung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1957637A1 (de) * 1968-11-21 1971-02-04 Nippon Electric Co Echounterdruecker

Also Published As

Publication number Publication date
NL6714772A (xx) 1968-05-01
NL161638B (nl) 1979-09-17
DE1537739A1 (de) 1970-02-12
NL161638C (nl) 1980-02-15
US3535473A (en) 1970-10-20
SE323109B (xx) 1970-04-27
DE1537739B2 (de) 1971-07-22
GB1205938A (en) 1970-09-23

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