NO884129L - DEVICE FOR THE DETECTION OF PERIODIC SIGNALS FOR A SPEECH-ECO COMPENSATOR. - Google Patents

DEVICE FOR THE DETECTION OF PERIODIC SIGNALS FOR A SPEECH-ECO COMPENSATOR.

Info

Publication number
NO884129L
NO884129L NO88884129A NO884129A NO884129L NO 884129 L NO884129 L NO 884129L NO 88884129 A NO88884129 A NO 88884129A NO 884129 A NO884129 A NO 884129A NO 884129 L NO884129 L NO 884129L
Authority
NO
Norway
Prior art keywords
eco
compensator
speech
detection
periodic signals
Prior art date
Application number
NO88884129A
Other languages
Norwegian (no)
Other versions
NO884129D0 (en
Inventor
Dirsko V 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 NO884129D0 publication Critical patent/NO884129D0/en
Publication of NO884129L publication Critical patent/NO884129L/en

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)
NO88884129A 1987-09-18 1988-09-16 DEVICE FOR THE DETECTION OF PERIODIC SIGNALS FOR A SPEECH-ECO COMPENSATOR. NO884129L (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
NO884129D0 NO884129D0 (en) 1988-09-16
NO884129L true NO884129L (en) 1989-03-20

Family

ID=6336383

Family Applications (1)

Application Number Title Priority Date Filing Date
NO88884129A NO884129L (en) 1987-09-18 1988-09-16 DEVICE FOR THE DETECTION OF PERIODIC SIGNALS FOR A SPEECH-ECO COMPENSATOR.

Country Status (4)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0476411B1 (en) * 1990-09-21 1994-11-30 Siemens Aktiengesellschaft Method for the detection of periodical digital signals at the input of a digital echocanceller
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
WO1982003144A1 (en) * 1981-03-05 1982-09-16 Western Electric Co Energy band discriminator
US4491701A (en) * 1981-03-05 1985-01-01 At&T Bell Laboratories Adaptive filter including a far end energy discriminator
SE8205840L (en) * 1981-10-23 1983-04-24 Western Electric Co echo canceller
DE3605325A1 (en) * 1986-02-19 1987-08-20 Siemens Ag Method and arrangement for avoiding or limiting the increase of the coefficients of a transverse filter in an echo compensator when a periodic signal is received

Also Published As

Publication number Publication date
AU2232988A (en) 1989-05-04
NO884129D0 (en) 1988-09-16
BR8804787A (en) 1989-04-25
AU586963B2 (en) 1989-07-27
EP0307765A1 (en) 1989-03-22

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