SE9003661D0 - Foerfarande och anordning i samband med ekoeliminering i en abonnentlinjekrets - Google Patents
Foerfarande och anordning i samband med ekoeliminering i en abonnentlinjekretsInfo
- Publication number
- SE9003661D0 SE9003661D0 SE9003661A SE9003661A SE9003661D0 SE 9003661 D0 SE9003661 D0 SE 9003661D0 SE 9003661 A SE9003661 A SE 9003661A SE 9003661 A SE9003661 A SE 9003661A SE 9003661 D0 SE9003661 D0 SE 9003661D0
- Authority
- SE
- Sweden
- Prior art keywords
- elimination
- eco
- procedure
- connection
- khz
- 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)
- Interface Circuits In Exchanges (AREA)
- Telephonic Communication Services (AREA)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9003661A SE467436B (sv) | 1990-11-16 | 1990-11-16 | Foerfarande och anordning foer att minska den erforderliga storleken hos ett digitalt filter i samband med ekoeliminering i en abonnentlinjekrets |
DE4192840A DE4192840C2 (de) | 1990-11-16 | 1991-10-15 | Verfahren und Anordnung zur Verwendung für die Beseitigung von Echos in einer Teilnehmeranschluss-Schaltung |
DE4192840T DE4192840T1 (de) | 1990-11-16 | 1991-10-15 | Verfahren und Anordnung zur Verwendung für die Beseitigung von Echos in einer Teilnehmeranschluss-Schaltung |
JP50056192A JP3232091B2 (ja) | 1990-11-16 | 1991-10-15 | 加入者回線回路のエコー除去の方法および装置 |
PCT/SE1991/000694 WO1992009147A1 (en) | 1990-11-16 | 1991-10-15 | A method and arrangement for use in the elimination of echoes in a subscriber line circuit |
US07/783,866 US5446728A (en) | 1990-11-16 | 1991-10-29 | Method and arrangement for use in the elimination of echoes in a subscriber line circuit |
GB9307844A GB2265529B (en) | 1990-11-16 | 1993-04-15 | A method and arrangement for use in the elimination of echoes in a subscriber line circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9003661A SE467436B (sv) | 1990-11-16 | 1990-11-16 | Foerfarande och anordning foer att minska den erforderliga storleken hos ett digitalt filter i samband med ekoeliminering i en abonnentlinjekrets |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9003661D0 true SE9003661D0 (sv) | 1990-11-16 |
SE9003661L SE9003661L (sv) | 1992-05-17 |
SE467436B SE467436B (sv) | 1992-07-13 |
Family
ID=20380934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9003661A SE467436B (sv) | 1990-11-16 | 1990-11-16 | Foerfarande och anordning foer att minska den erforderliga storleken hos ett digitalt filter i samband med ekoeliminering i en abonnentlinjekrets |
Country Status (6)
Country | Link |
---|---|
US (1) | US5446728A (sv) |
JP (1) | JP3232091B2 (sv) |
DE (2) | DE4192840T1 (sv) |
GB (1) | GB2265529B (sv) |
SE (1) | SE467436B (sv) |
WO (1) | WO1992009147A1 (sv) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5577027A (en) * | 1995-04-18 | 1996-11-19 | Intel Corporation | Apparatus and method for effectively eliminating the echo signal of transmitting signal in a modem |
US5917809A (en) * | 1997-01-08 | 1999-06-29 | Analog Devices, Inc. | Asymmetric digital subscriber loop modem and method |
DE19953347A1 (de) * | 1999-11-05 | 2001-06-28 | Infineon Technologies Ag | Echokompensationsvorrichtung |
US7139392B1 (en) | 2000-06-20 | 2006-11-21 | Sbc Technology Resources, Inc. | Device and method for suppressing DSL signal echo induced by bridgetap |
US6703192B1 (en) * | 2003-02-28 | 2004-03-09 | Eastman Kodak Company | Photographic peracid bleaching composition, processing kit, and method of use |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4528551A (en) * | 1979-11-28 | 1985-07-09 | International Telephone And Telegraph Corporation | Digital to analog converter employing sigma-delta modulation for use in telephone systems |
US4270027A (en) * | 1979-11-28 | 1981-05-26 | International Telephone And Telegraph Corporation | Telephone subscriber line unit with sigma-delta digital to analog converter |
FR2538975A1 (fr) * | 1982-12-30 | 1984-07-06 | Trt Telecom Radio Electr | Procede utilise dans un dispositif d'annulation d'echo pour la mesure d'un retard d'echo et dispositif de mise en oeuvre de ce procede |
US4621356A (en) * | 1983-07-18 | 1986-11-04 | Scipione Fred J | Communications interface for duplex transmission and reception of data and other signals over telephone lines |
US4989221A (en) * | 1987-03-30 | 1991-01-29 | Codex Corporation | Sample rate converter |
JP2810052B2 (ja) * | 1987-11-18 | 1998-10-15 | 株式会社日立製作所 | 伝送装置 |
JPH01284010A (ja) * | 1988-01-21 | 1989-11-15 | Codex Corp | ディジタル・フィルタ |
US4995030A (en) * | 1988-02-01 | 1991-02-19 | Memotec Datacom, Inc. | Far end echo cancellation method and apparatus |
JP2615795B2 (ja) * | 1988-04-07 | 1997-06-04 | 日本電気株式会社 | 適応形反響消去装置 |
WO1992010037A1 (en) * | 1990-11-27 | 1992-06-11 | Jacobs Gordon M | Digital data converter |
JP3526196B2 (ja) * | 1997-01-07 | 2004-05-10 | 株式会社東芝 | アダプティブアンテナ |
-
1990
- 1990-11-16 SE SE9003661A patent/SE467436B/sv not_active IP Right Cessation
-
1991
- 1991-10-15 WO PCT/SE1991/000694 patent/WO1992009147A1/en active Application Filing
- 1991-10-15 JP JP50056192A patent/JP3232091B2/ja not_active Expired - Lifetime
- 1991-10-15 DE DE4192840T patent/DE4192840T1/de active Pending
- 1991-10-15 DE DE4192840A patent/DE4192840C2/de not_active Expired - Fee Related
- 1991-10-29 US US07/783,866 patent/US5446728A/en not_active Expired - Lifetime
-
1993
- 1993-04-15 GB GB9307844A patent/GB2265529B/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5446728A (en) | 1995-08-29 |
DE4192840T1 (de) | 1993-11-18 |
JP3232091B2 (ja) | 2001-11-26 |
WO1992009147A1 (en) | 1992-05-29 |
DE4192840C2 (de) | 1995-11-09 |
GB2265529A (en) | 1993-09-29 |
SE467436B (sv) | 1992-07-13 |
GB2265529B (en) | 1994-12-07 |
SE9003661L (sv) | 1992-05-17 |
GB9307844D0 (en) | 1993-06-23 |
JPH06502524A (ja) | 1994-03-17 |
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Legal Events
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NAL | Patent in force |
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