NO923610D0 - 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 CONNECTIONInfo
- Publication number
- NO923610D0 NO923610D0 NO923610A NO923610A NO923610D0 NO 923610 D0 NO923610 D0 NO 923610D0 NO 923610 A NO923610 A NO 923610A NO 923610 A NO923610 A NO 923610A NO 923610 D0 NO923610 D0 NO 923610D0
- Authority
- NO
- Norway
- Prior art keywords
- signals
- arrangement
- compensation
- connector
- procedure
- Prior art date
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>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4131253 | 1991-09-19 |
Publications (3)
Publication Number | Publication Date |
---|---|
NO923610D0 true NO923610D0 (en) | 1992-09-17 |
NO923610L 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)
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 |
-
1992
- 1992-09-01 EP EP92114931A patent/EP0532973B1/en not_active Expired - Lifetime
- 1992-09-01 DE DE59206288T patent/DE59206288D1/en not_active Expired - Fee Related
- 1992-09-01 AT AT92114931T patent/ATE138232T1/en not_active IP Right Cessation
- 1992-09-17 NO NO923610A patent/NO305626B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE59206288D1 (en) | 1996-06-20 |
ATE138232T1 (en) | 1996-06-15 |
EP0532973A2 (en) | 1993-03-24 |
EP0532973A3 (en) | 1994-03-30 |
NO923610L (en) | 1993-03-22 |
EP0532973B1 (en) | 1996-05-15 |
NO305626B1 (en) | 1999-06-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM1K | Lapsed by not paying the annual fees |
Free format text: LAPSED IN MARCH 2002 |