NO923610L - PROCEDURE AND CONNECTOR FOR COMPENSATION OF ECO SIGNALS THROUGH A DIGITAL SIGNAL TRANSFER OVER A TWO-WIRE CONNECTION - Google Patents

PROCEDURE AND CONNECTOR FOR COMPENSATION OF ECO SIGNALS THROUGH A DIGITAL SIGNAL TRANSFER OVER A TWO-WIRE CONNECTION

Info

Publication number
NO923610L
NO923610L NO92923610A NO923610A NO923610L NO 923610 L NO923610 L NO 923610L NO 92923610 A NO92923610 A NO 92923610A NO 923610 A NO923610 A NO 923610A NO 923610 L NO923610 L NO 923610L
Authority
NO
Norway
Prior art keywords
signals
arrangement
compensation
connector
procedure
Prior art date
Application number
NO92923610A
Other languages
Norwegian (no)
Other versions
NO923610D0 (en
NO305626B1 (en
Inventor
Adolf Haass
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 NO923610D0 publication Critical patent/NO923610D0/en
Publication of NO923610L publication Critical patent/NO923610L/en
Publication of NO305626B1 publication Critical patent/NO305626B1/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Dc Digital Transmission (AREA)
  • Bidirectional Digital Transmission (AREA)

Abstract

In a transmission device which exhibits a transmitting device (COD, IF) and a receiving device (EE) and which, on the one hand, are connected to the two-wire line (UELTG) via a hybrid arrangement (GA) and, on the other hand, are connected to one another via a canceller arrangement (EK), it is provided, for an adaptive adjustment of cancellation coefficients used for forming cancellation signals, that the canceller arrangement (EK) is supplied with amplitude values of the digital signals corrected with the aid of cancelling signals as adjustment signals. In this arrangement, amplitude-value-dependent correction values are used for any change in the cancellation coefficients which may be required as determined by these amplitude values. These correction values are changed with a fixed time offset following changing amplitude values. <IMAGE>
NO923610A 1991-09-19 1992-09-17 Method and switching device for compensating echo signals by a digital signal transmission over a two-wire connection NO305626B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4131253 1991-09-19

Publications (3)

Publication Number Publication Date
NO923610D0 NO923610D0 (en) 1992-09-17
NO923610L true NO923610L (en) 1993-03-22
NO305626B1 NO305626B1 (en) 1999-06-28

Family

ID=6441020

Family Applications (1)

Application Number Title Priority Date Filing Date
NO923610A NO305626B1 (en) 1991-09-19 1992-09-17 Method and switching device for compensating echo signals by a digital signal transmission over a two-wire connection

Country Status (4)

Country Link
EP (1) EP0532973B1 (en)
AT (1) ATE138232T1 (en)
DE (1) DE59206288D1 (en)
NO (1) NO305626B1 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3566339D1 (en) * 1984-09-28 1988-12-22 Siemens Ag Circuit arrangement for adjusting an echo canceller

Also Published As

Publication number Publication date
NO923610D0 (en) 1992-09-17
EP0532973B1 (en) 1996-05-15
EP0532973A3 (en) 1994-03-30
ATE138232T1 (en) 1996-06-15
EP0532973A2 (en) 1993-03-24
DE59206288D1 (en) 1996-06-20
NO305626B1 (en) 1999-06-28

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Legal Events

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Free format text: LAPSED IN MARCH 2002