ES516966A0 - Un filtro de equilibrio del tipo de respuesta de impulsos finitos, destinado a utilizarse en un sistema de telecomunicacion. - Google Patents

Un filtro de equilibrio del tipo de respuesta de impulsos finitos, destinado a utilizarse en un sistema de telecomunicacion.

Info

Publication number: ES516966A0
Authority: ES; Spain
Prior art keywords: intended; impulse response; telecommunication system; finite impulse; response type
Prior art date: 1981-11-02
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.): Granted

Application number

ES516966A

Other languages

English (en)

Other versions

ES8308178A1 (es

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Telefonaktiebolaget LM Ericsson AB

Original Assignee

Telefonaktiebolaget LM Ericsson AB

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.)

1981-11-02

Filing date

1982-10-29

Publication date

1983-08-01

1982-10-29 Application filed by Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB

1983-08-01 Publication of ES516966A0 publication Critical patent/ES516966A0/es

1983-08-01 Publication of ES8308178A1 publication Critical patent/ES8308178A1/es

Status Expired legal-status Critical Current

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
- H04B3/231—Echo cancellers using readout of a memory to provide the echo replica
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/06—Non-recursive filters
- 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)
Physics & Mathematics (AREA)
Computer Hardware Design (AREA)
Mathematical Physics (AREA)
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Filters That Use Time-Delay Elements (AREA)
Selective Calling Equipment (AREA)
Circuits Of Receivers In General (AREA)
Bidirectional Digital Transmission (AREA)

ES516966A 1981-11-02 1982-10-29 Un filtro de equilibrio del tipo de respuesta de impulsos finitos, destinado a utilizarse en un sistema de telecomunicacion. Expired ES8308178A1 (es)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE8106445A SE426765B (sv)	1981-11-02	1981-11-02	Balansfilter av fir-typ ingaende i sendar-mottagarenheten i ett telekommunikationssystem

Publications (2)

Publication Number	Publication Date
ES516966A0 true ES516966A0 (es)	1983-08-01
ES8308178A1 ES8308178A1 (es)	1983-08-01

Family

ID=20344931

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ES516966A Expired ES8308178A1 (es)	1981-11-02	1982-10-29	Un filtro de equilibrio del tipo de respuesta de impulsos finitos, destinado a utilizarse en un sistema de telecomunicacion.

Country Status (18)

Country	Link
US (1)	US4571719A (es)
EP (1)	EP0092569B1 (es)
JP (1)	JPS58501849A (es)
KR (1)	KR870000629B1 (es)
AU (1)	AU553371B2 (es)
BR (1)	BR8207952A (es)
DE (1)	DE3261072D1 (es)
DK (1)	DK301783D0 (es)
ES (1)	ES8308178A1 (es)
FI (1)	FI73104C (es)
IE (1)	IE53760B1 (es)
IT (1)	IT1153339B (es)
MX (1)	MX152128A (es)
MY (1)	MY100485A (es)
NO (1)	NO157239C (es)
SE (1)	SE426765B (es)
WO (1)	WO1983001715A1 (es)
YU (1)	YU244382A (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4605826A (en) *	1982-06-23	1986-08-12	Nec Corporation	Echo canceler with cascaded filter structure
US4669116A (en) *	1982-12-09	1987-05-26	Regents Of The University Of California	Non-linear echo cancellation of data signals
IT1208769B (it) *	1983-10-12	1989-07-10	Cselt Centro Studi Lab Telecom	Teristiche varianti nel tempo procedimento e dispositivo per la cancellazione numerica dell eco generato in collegamenti con carat
NL8600817A (nl) *	1986-03-28	1987-10-16	At & T & Philips Telecomm	Adaptief filter voor het vormen van een echokompensatiesignaal in een zend-ontvangstelsel voor het in duplexvorm bedrijven van digitale communicatie over een enkel geleiderpaar.
US4868874A (en) *	1986-04-18	1989-09-19	Hitachi, Ltd.	Echo canceller
DE3679190D1 (de) *	1986-08-07	1991-06-13	Itt Ind Gmbh Deutsche	Nichtrekursives digitalfilter.
EP0280898A1 (de) *	1987-02-18	1988-09-07	Siemens Aktiengesellschaft	Schaltungsanordnung zum Unterdrücken von Echosignalen
JP2581763B2 (ja) *	1988-06-15	1997-02-12	株式会社日立製作所	エコーキャンセラ
CA1315356C (en) *	1988-07-20	1993-03-30	Seiji Miyoshi	Digital adaptive filter and method of convergence therein
CA2004379C (en) *	1988-12-01	1993-07-06	Tetsu Taguchi	Echo canceller with means for determining filter coefficients from autocorrelation and cross-correlation coefficients
US4982428A (en) *	1988-12-29	1991-01-01	At&T Bell Laboratories	Arrangement for canceling interference in transmission systems
DE19645054C2 (de) *	1996-10-31	1999-11-25	Sgs Thomson Microelectronics	Vorrichtung und Verfahren zur Selektion von Adressenwörtern
US8718474B2 (en) *	2011-05-27	2014-05-06	Nec Laboratories America, Inc.	Chromatic dispersion compensation using sign operations and lookup tables

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2277470A1 (fr) *	1974-07-03	1976-01-30	Cit Alcatel	Dispositif de centrage d'un filtre transversal d'un annuleur d'echo
NL170688C (nl) *	1976-06-28	1982-12-01	Philips Nv	Inrichting voor simultane tweerichtingsdatatransmissie over tweedraadsverbindingen.
NL7800408A (nl) *	1977-01-17	1978-07-19	Trt Telecom Radio Electr	Digitale echocompensator voor een modem voor datatransmissie met behulp van modulatie van een draaggolf.
DE2729109A1 (de) *	1977-06-28	1979-01-11	Siemens Ag	Schaltungsanordnung zur kompensation von echos in nichtsynchronen traegerfrequenzsystemen
JPS54157407A (en) *	1978-06-02	1979-12-12	Hitachi Ltd	Level control unit for time-division exchange
US4268727A (en) *	1979-03-14	1981-05-19	International Telephone And Telegraph Corporation	Adaptive digital echo cancellation circuit
FR2479617A1 (fr) *	1980-03-26	1981-10-02	Trt Telecom Radio Electr	Annuleur d'echo pour signal d'echo a phase variable
CA1173128A (en) *	1981-10-13	1984-08-21	Pok F. Lee	Echo cancellation using transversal filters

1981
- 1981-11-02 SE SE8106445A patent/SE426765B/sv not_active IP Right Cessation
1982
- 1982-10-28 MX MX194979A patent/MX152128A/es unknown
- 1982-10-29 ES ES516966A patent/ES8308178A1/es not_active Expired
- 1982-10-29 IE IE2606/82A patent/IE53760B1/en unknown
- 1982-11-01 YU YU02443/82A patent/YU244382A/xx unknown
- 1982-11-02 EP EP82903351A patent/EP0092569B1/en not_active Expired
- 1982-11-02 DE DE8282903351T patent/DE3261072D1/de not_active Expired
- 1982-11-02 US US06/514,824 patent/US4571719A/en not_active Expired - Lifetime
- 1982-11-02 IT IT24026/82A patent/IT1153339B/it active
- 1982-11-02 JP JP82503354A patent/JPS58501849A/ja active Pending
- 1982-11-02 WO PCT/SE1982/000362 patent/WO1983001715A1/en not_active Ceased
- 1982-11-02 KR KR8204930A patent/KR870000629B1/ko not_active Expired
- 1982-11-02 BR BR8207952A patent/BR8207952A/pt not_active IP Right Cessation
- 1982-11-02 AU AU91221/82A patent/AU553371B2/en not_active Ceased
1983
- 1983-06-17 FI FI832229A patent/FI73104C/sv not_active IP Right Cessation
- 1983-06-30 DK DK3017/83A patent/DK301783D0/da not_active Application Discontinuation
- 1983-07-01 NO NO83832421A patent/NO157239C/no unknown
1985
- 1985-12-30 MY MY1004/85A patent/MY100485A/xx unknown

Also Published As

Publication number	Publication date
FI832229A0 (fi)	1983-06-17
IT1153339B (it)	1987-01-14
YU244382A (en)	1985-03-20
EP0092569A1 (en)	1983-11-02
KR840002599A (ko)	1984-07-02
DE3261072D1 (en)	1984-11-29
IE53760B1 (en)	1989-02-01
EP0092569B1 (en)	1984-10-24
BR8207952A (pt)	1983-10-04
JPS58501849A (ja)	1983-10-27
IT8224026A0 (it)	1982-11-02
FI73104C (sv)	1987-08-10
KR870000629B1 (ko)	1987-03-26
US4571719A (en)	1986-02-18
MY100485A (en)	1985-12-31
NO157239C (no)	1988-02-10
WO1983001715A1 (en)	1983-05-11
DK301783A (da)	1983-06-30
NO832421L (no)	1983-07-01
SE426765B (sv)	1983-02-07
AU553371B2 (en)	1986-07-10
IE822606L (en)	1983-05-02
MX152128A (es)	1985-05-30
DK301783D0 (da)	1983-06-30
IT8224026A1 (it)	1984-05-02
NO157239B (no)	1987-11-02
FI832229L (fi)	1983-06-17
AU9122182A (en)	1983-05-18
ES8308178A1 (es)	1983-08-01
FI73104B (fi)	1987-04-30

Publication	Publication Date	Title
NL190224C (nl)	1993-12-16	Filtersamenstel.
NL192467B (nl)	1997-04-01	Stromingsmeter.
IT7828386A0 (it)	1978-10-03	Perfezionamenti ai dispositivi di deviazione del flusso.
NO156109C (no)	1987-07-22	Kopling av innstikk-typen egnet for bruk i fluidmiljoe.
NO153677C (no)	1986-05-07	Filterelement.
ES516966A0 (es)	1983-08-01	Un filtro de equilibrio del tipo de respuesta de impulsos finitos, destinado a utilizarse en un sistema de telecomunicacion.
EP0090004A4 (en)	1984-02-09	LIQUID PURIFICATION SYSTEM.
NL193668B (nl)	2000-02-01	Steigerelement.
ES515887A0 (es)	1984-03-01	Perfeccionamientos en los sistemas filtrantes.
IT8123130A0 (it)	1981-07-24	Dispositivo per l'intercollegamento di due elementi con estremita'cilindriche.
NO822635L (no)	1982-08-02	Flytende polytioetere.
FI833479A7 (fi)	1983-09-27	Astioihin liittyviä parannuksia.
NO157723C (no)	1988-05-11	Filterelement eller filter.
NO156707C (no)	1987-11-04	Overspenningsbeskyttelsesanordning.
IT8123168A0 (it)	1981-07-27	Rastrelliera.
MX149081A (es)	1983-08-18	Mejoras en sistema generador de impulsos
ES517472A0 (es)	1983-11-16	Perfeccionamientos en supresores del flujo de fluidos.
NO821619L (no)	1982-11-22	Flytende konstruksjon.
IT8319072A0 (it)	1983-01-12	Motociclo perfezionato del tipo adue ruote.
NL182285C (nl)	1988-02-16	Canule.
IT7928325A0 (it)	1979-12-21	Filtro per tubazione di ritorno.
NL191716C (nl)	1996-04-02	Vloeistofdebietbegrenzer.
ATE16887T1 (de)	1985-12-15	Verbindungsvorrichtung.
IT8124012A0 (it)	1981-09-17	Impianto di filtrazione, in particolare del tipo a pressione aletto filtrante orizzontale.
ATE14990T1 (de)	1985-09-15	Filterelement.