BR8804787A - Disposicao para a identificacao de sinais periodicos para um compensador de eco-voz - Google Patents

Disposicao para a identificacao de sinais periodicos para um compensador de eco-voz

Info

Publication number
BR8804787A
BR8804787A BR8804787A BR8804787A BR8804787A BR 8804787 A BR8804787 A BR 8804787A BR 8804787 A BR8804787 A BR 8804787A BR 8804787 A BR8804787 A BR 8804787A BR 8804787 A BR8804787 A BR 8804787A
Authority
BR
Brazil
Prior art keywords
echo
identification
arrangement
signs
periodic
Prior art date
Application number
BR8804787A
Other languages
English (en)
Inventor
Dirsko Von Pfeil
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of BR8804787A publication Critical patent/BR8804787A/pt

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
    • 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)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
BR8804787A 1987-09-18 1988-09-16 Disposicao para a identificacao de sinais periodicos para um compensador de eco-voz BR8804787A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3731536 1987-09-18

Publications (1)

Publication Number Publication Date
BR8804787A true BR8804787A (pt) 1989-04-25

Family

ID=6336383

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8804787A BR8804787A (pt) 1987-09-18 1988-09-16 Disposicao para a identificacao de sinais periodicos para um compensador de eco-voz

Country Status (4)

Country Link
EP (1) EP0307765A1 (pt)
AU (1) AU586963B2 (pt)
BR (1) BR8804787A (pt)
NO (1) NO884129L (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0476411B1 (de) * 1990-09-21 1994-11-30 Siemens Aktiengesellschaft Verfahren zum Erkennen von periodisch auftretenden Digitalsignalen im Empfangsweg eines digitalen Echokompensators
US5592548A (en) * 1995-05-31 1997-01-07 Qualcomm Incorporated System and method for avoiding false convergence in the presence of tones in a time-domain echo cancellation process

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491701A (en) * 1981-03-05 1985-01-01 At&T Bell Laboratories Adaptive filter including a far end energy discriminator
WO1982003144A1 (en) * 1981-03-05 1982-09-16 Western Electric Co Energy band discriminator
SE8205840L (sv) * 1981-10-23 1983-04-24 Western Electric Co Ekoeliminator
DE3605325A1 (de) * 1986-02-19 1987-08-20 Siemens Ag Verfahren und anordnung zur verminderung oder begrenzung des anwachsens der koeffizienten eines transversalfilters in einem echokompensator beim empfang eines periodischen signals

Also Published As

Publication number Publication date
NO884129D0 (no) 1988-09-16
EP0307765A1 (de) 1989-03-22
AU2232988A (en) 1989-05-04
AU586963B2 (en) 1989-07-27
NO884129L (no) 1989-03-20

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