ES8708102A1 - Aparato para ajustar un filtro de igualacion digital en un circuito hibrido de un sistema de telecomunicacion valida para transmitir informacion digital en duplex. - Google Patents
Aparato para ajustar un filtro de igualacion digital en un circuito hibrido de un sistema de telecomunicacion valida para transmitir informacion digital en duplex.Info
- Publication number
- ES8708102A1 ES8708102A1 ES554203A ES554203A ES8708102A1 ES 8708102 A1 ES8708102 A1 ES 8708102A1 ES 554203 A ES554203 A ES 554203A ES 554203 A ES554203 A ES 554203A ES 8708102 A1 ES8708102 A1 ES 8708102A1
- Authority
- ES
- Spain
- Prior art keywords
- signal
- epsilon
- elimination
- adaptive
- balance
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
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
- H04B3/235—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 combined with adaptive equaliser
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Filters And Equalizers (AREA)
- Bidirectional Digital Transmission (AREA)
Abstract
APARATO PARA AJUSTAR UN FILTRO DE IGUALACION DIGITAL EN UN CIRCUITO HIBRIDO DE UN SISTEMA DE TELECOMUNICACION. COMPRENDE DOS SEÑALES DE COMPENSACION EZ(T) DE LOS PARAMETROS ALMACENADOS DE UN FILTRO DE COMPENSACION DIGITAL (B) E IZ(T) DE LOS PARAMETROS CORRESPONDIENTES DEL FILTRO IGUALADOR (U), QUE SON RESTADAS DE UNA SEÑAL RECIBIDA A(T) B EZ(T) B IZ(T) A FIN DE FORMAR UNA SEÑAL DIFERENCIA R(T) QUE ESTA COMPENSADA DEL RUIDO CAUSADO POR ECOS E INTERFERENCIAS ENTRE SIMBOLOS. TIENE UTILIDAD PARA TRANSMITIR INFORMACION DIGITAL EN DUPLEX.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8501956A SE447777B (sv) | 1985-04-22 | 1985-04-22 | Forfarande for instellning av ett digitalt utjemnarfilter vid samtidig adaptiv ekoeliminering och adaptiv eliminering av storningar som uppstar genom intersymbolinterferens, samt anordning for genomforande av forfarande |
Publications (2)
Publication Number | Publication Date |
---|---|
ES554203A0 ES554203A0 (es) | 1987-09-01 |
ES8708102A1 true ES8708102A1 (es) | 1987-09-01 |
Family
ID=20359935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES554203A Expired ES8708102A1 (es) | 1985-04-22 | 1986-04-21 | Aparato para ajustar un filtro de igualacion digital en un circuito hibrido de un sistema de telecomunicacion valida para transmitir informacion digital en duplex. |
Country Status (18)
Country | Link |
---|---|
US (1) | US4727543A (es) |
EP (1) | EP0219537B1 (es) |
JP (1) | JPH0671221B2 (es) |
KR (1) | KR880700554A (es) |
AT (1) | ATE54520T1 (es) |
AU (1) | AU5812486A (es) |
BR (1) | BR8606638A (es) |
CA (1) | CA1257352A (es) |
DE (1) | DE3672557D1 (es) |
ES (1) | ES8708102A1 (es) |
FI (1) | FI864967A0 (es) |
GR (1) | GR860954B (es) |
MA (1) | MA20667A1 (es) |
NZ (1) | NZ215670A (es) |
PT (1) | PT82433B (es) |
SE (1) | SE447777B (es) |
WO (1) | WO1986006567A1 (es) |
YU (1) | YU65186A (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GR861513B (en) * | 1985-06-13 | 1986-10-13 | Siemens Ag | Double cable amplifier fourfold amplifire of a double cable and fourfold circuit with amplifier |
CA1272529A (en) * | 1987-12-31 | 1990-08-07 | Northern Telecom Limited | Apparatus and method for noise reduction in a digital line receiver |
US4982428A (en) * | 1988-12-29 | 1991-01-01 | At&T Bell Laboratories | Arrangement for canceling interference in transmission systems |
US5111481A (en) * | 1989-11-17 | 1992-05-05 | Nynex Corporation | Dual mode LMS channel equalizer |
US5267266A (en) * | 1992-05-11 | 1993-11-30 | Bell Communications Research, Inc. | Fast converging adaptive equalizer using pilot adaptive filters |
US5757654A (en) * | 1993-12-29 | 1998-05-26 | International Business Machines Corp. | Reflective wave compensation on high speed processor cards |
US5544047A (en) * | 1993-12-29 | 1996-08-06 | International Business Machines Corporation | Reflective wave compensation on high speed processor cards |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2111354B (en) * | 1981-11-19 | 1985-06-19 | Standard Telephones Cables Ltd | Echo canceller |
FR2534426A1 (fr) * | 1982-10-11 | 1984-04-13 | Trt Telecom Radio Electr | Egaliseur auto-adaptatif pour signal de donnees en bande de base |
FR2534427A1 (fr) * | 1982-10-11 | 1984-04-13 | Trt Telecom Radio Electr | Annuleur d'echo pour signal de donnees en bande de base |
FR2534754A1 (fr) * | 1982-10-15 | 1984-04-20 | Trt Telecom Radio Electr | Recepteur pour modem de transmission de donnees, comportant un annuleur d'echo et un egaliseur |
US4621172A (en) * | 1982-12-22 | 1986-11-04 | Nec Corporation | Fast convergence method and system for echo canceller |
GB2144950A (en) * | 1983-08-10 | 1985-03-13 | Philips Electronic Associated | Data transmission system |
LU85402A1 (de) * | 1983-12-01 | 1984-09-11 | Siemens Ag | Verfahren und schaltungsanordnung zur kompensation von uebersprech-u./o.echosignalen |
US4677668A (en) * | 1984-05-01 | 1987-06-30 | North Carolina State University | Echo canceller using parametric methods |
US4650930A (en) * | 1985-02-13 | 1987-03-17 | Northern Telecom Limited | Adaptive equalizer |
-
1985
- 1985-04-22 SE SE8501956A patent/SE447777B/sv not_active IP Right Cessation
-
1986
- 1986-04-02 NZ NZ215670A patent/NZ215670A/xx unknown
- 1986-04-08 US US07/009,944 patent/US4727543A/en not_active Expired - Lifetime
- 1986-04-08 JP JP61502548A patent/JPH0671221B2/ja not_active Expired - Lifetime
- 1986-04-08 AU AU58124/86A patent/AU5812486A/en not_active Abandoned
- 1986-04-08 AT AT86902923T patent/ATE54520T1/de not_active IP Right Cessation
- 1986-04-08 DE DE8686902923T patent/DE3672557D1/de not_active Expired - Lifetime
- 1986-04-08 EP EP86902923A patent/EP0219537B1/en not_active Expired - Lifetime
- 1986-04-08 KR KR860700915A patent/KR880700554A/ko not_active Application Discontinuation
- 1986-04-08 BR BR8606638A patent/BR8606638A/pt not_active IP Right Cessation
- 1986-04-08 WO PCT/SE1986/000162 patent/WO1986006567A1/en active IP Right Grant
- 1986-04-10 GR GR860954A patent/GR860954B/el unknown
- 1986-04-21 CA CA000507143A patent/CA1257352A/en not_active Expired
- 1986-04-21 YU YU00651/86A patent/YU65186A/xx unknown
- 1986-04-21 ES ES554203A patent/ES8708102A1/es not_active Expired
- 1986-04-21 PT PT82433A patent/PT82433B/pt not_active IP Right Cessation
- 1986-04-22 MA MA20892A patent/MA20667A1/fr unknown
- 1986-12-05 FI FI864967A patent/FI864967A0/fi not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE8501956D0 (sv) | 1985-04-22 |
ES554203A0 (es) | 1987-09-01 |
SE447777B (sv) | 1986-12-08 |
FI864967A (fi) | 1986-12-05 |
JPS62502581A (ja) | 1987-10-01 |
MA20667A1 (fr) | 1986-12-31 |
AU5812486A (en) | 1986-11-18 |
PT82433A (en) | 1986-05-01 |
YU65186A (en) | 1991-02-28 |
FI864967A0 (fi) | 1986-12-05 |
WO1986006567A1 (en) | 1986-11-06 |
BR8606638A (pt) | 1987-08-04 |
US4727543A (en) | 1988-02-23 |
ATE54520T1 (de) | 1990-07-15 |
DE3672557D1 (de) | 1990-08-16 |
GR860954B (en) | 1986-04-14 |
KR880700554A (ko) | 1988-03-15 |
SE8501956L (sv) | 1986-10-23 |
PT82433B (pt) | 1992-07-31 |
NZ215670A (en) | 1988-10-28 |
EP0219537B1 (en) | 1990-07-11 |
JPH0671221B2 (ja) | 1994-09-07 |
EP0219537A1 (en) | 1987-04-29 |
CA1257352A (en) | 1989-07-11 |
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