FI824217A0 - Grundinstaellningsanordning foer ekoutslaeckningsanordning - Google Patents

Grundinstaellningsanordning foer ekoutslaeckningsanordning

Info

Publication number: FI824217A0
Authority: FI; Finland
Prior art keywords: grundinstaellningsanordning; ekoutslaeckningsanordning; foer; grundinstaellningsanordning foer; foer ekoutslaeckningsanordning
Prior art date: 1981-12-09

Application number

FI824217A

Other languages

English (en)

Other versions

FI74845B (fi

FI74845C (fi

FI824217L (fi

Inventor

De Verdiere Jean-Marc Ma Colin

Patrice Rene Langlois

Original Assignee

Telecommunications Sa

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.)

1981-12-09

Filing date

1982-12-08

Publication date

1982-12-08

1982-12-08 Application filed by Telecommunications Sa filed Critical Telecommunications Sa

1982-12-08 Publication of FI824217A0 publication Critical patent/FI824217A0/fi

1983-06-10 Publication of FI824217L publication Critical patent/FI824217L/fi

1987-11-30 Publication of FI74845B publication Critical patent/FI74845B/fi

1988-03-10 Application granted granted Critical

1988-03-10 Publication of FI74845C publication Critical patent/FI74845C/fi

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
- 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)
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Telephonic Communication Services (AREA)
Hardware Redundancy (AREA)
Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Bidirectional Digital Transmission (AREA)
Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

FI824217A 1981-12-09 1982-12-08 Anordning foer grundinstaellning av en ekoeliminator. FI74845C (fi)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR8122984A FR2517905B1 (fr)	1981-12-09	1981-12-09	Dispositif d'initialisation pour annuleur d'echo et son application aux echos lointains
FR8122984		1981-12-09

Publications (4)

Publication Number	Publication Date
FI824217A0 true FI824217A0 (fi)	1982-12-08
FI824217L FI824217L (fi)	1983-06-10
FI74845B FI74845B (fi)	1987-11-30
FI74845C FI74845C (fi)	1988-03-10

Family

ID=9264821

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI824217A FI74845C (fi)	1981-12-09	1982-12-08	Anordning foer grundinstaellning av en ekoeliminator.

Country Status (12)

Country	Link
US (1)	US4578544A (fi)
EP (1)	EP0081437B1 (fi)
JP (1)	JPS58114534A (fi)
CA (1)	CA1208733A (fi)
DE (1)	DE3275799D1 (fi)
DK (1)	DK545682A (fi)
ES (1)	ES8308663A1 (fi)
FI (1)	FI74845C (fi)
FR (1)	FR2517905B1 (fi)
HU (1)	HU186186B (fi)
NO (1)	NO156628C (fi)
SU (1)	SU1308208A3 (fi)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4669116A (en) *	1982-12-09	1987-05-26	Regents Of The University Of California	Non-linear echo cancellation of data signals
US4715064A (en) *	1984-06-22	1987-12-22	Ncr Corporation	Adaptive hybrid circuit
GB8427165D0 (en) *	1984-10-26	1984-12-05	British Telecomm	Adaptive recognising device
NZ214905A (en) *	1985-01-29	1988-09-29	British Telecomm	Noise cancellation by adaptive filter compensates for timing variations
US4811342A (en) *	1985-11-12	1989-03-07	Racal Data Communications Inc.	High speed analog echo canceller
US4805215A (en) *	1986-10-01	1989-02-14	Racal Data Communications Inc.	Adaptive echo canceller with sparse dynamically positioned taps
EP0333718B1 (en) *	1986-10-01	1992-06-03	Racal-Datacom Inc.	Echo canceller with adaptive dynamically positioned taps
NO180137C (no) *	1986-11-17	1997-02-19	Alcatel Nv	Ekkokansellerings-anlegg
US4813073A (en) *	1987-07-02	1989-03-14	Codex Corporation	Echo cancellation
FR2618925B1 (fr) *	1987-07-30	1989-12-15	Rault Jean	Dispositif de calcul numerique pour installation de transmission de donnees en code 2b 1q ou analogue
US5065242A (en) *	1990-06-29	1991-11-12	General Electric Company	Deghosting apparatus using pseudorandom sequences
JPH0527019U (ja) *	1991-09-19	1993-04-06	俊子阿曽	保冷帽子
FR2682252B1 (fr) *	1991-10-04	1995-11-03	Prescom Sarl	Procede de traitement de signal et dispositif de prise et de restitution de son mettant en óoeuvre ce procede.
FR2713417B1 (fr) *	1993-12-02	1996-02-02	Europ Agence Spatiale	Procédé de réglage adaptatif d'un suppresseur d'écho.
US5592548A (en) *	1995-05-31	1997-01-07	Qualcomm Incorporated	System and method for avoiding false convergence in the presence of tones in a time-domain echo cancellation process
US5920548A (en) *	1996-10-01	1999-07-06	Telefonaktiebolaget L M Ericsson	Echo path delay estimation
KR100462630B1 (ko) *	2000-07-11	2004-12-23	삼성전자주식회사	단일-캐리어 디지털 텔레비전 방송 시스템을 위한반복-ｐｎ1023-시퀀스 반향-소거 참조 신호
RU2174738C1 (ru) *	2000-10-31	2001-10-10	ЗАО "НПО "Кросна"	Способ групповой эхокомпенсации и групповой эхокомпенсатор
US20070112563A1 (en) *	2005-11-17	2007-05-17	Microsoft Corporation	Determination of audio device quality
US7881460B2 (en) *	2005-11-17	2011-02-01	Microsoft Corporation	Configuration of echo cancellation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2795865A (en) *	1954-03-29	1957-06-18	Backiel Mary	Protective foot covering
US3735055A (en) *	1971-11-05	1973-05-22	Bell Telephone Labor Inc	Method for improving the settling time of a transversal filter adaptive echo canceller
US3795865A (en) *	1972-02-23	1974-03-05	Honeywell Inf Systems	Automated real time equalized modem
FR2337465A1 (fr) *	1975-12-30	1977-07-29	Ibm France	Procede et dispositif pour determiner les valeurs initiales des coefficients d'un egaliseur transversal complexe
DE2801375C3 (de) *	1977-01-17	1982-01-28	Télécommunications Radioélectriques et Téléphoniques T.R.T., 75013 Paris	Digitaler Echokompensator für einen Modem zur Datenübertragung mit Hilfe von Modulation eines Trägers
FR2460075B1 (fr) *	1979-06-22	1988-12-09	Cit Alcatel	Annuleur d'echo adaptatif pour transmission de donnees en duplex
NL7905577A (nl) *	1979-07-18	1981-01-20	Philips Nv	Inrichting met een niet-recursieffilter.
CA1173128A (en) *	1981-10-13	1984-08-21	Pok F. Lee	Echo cancellation using transversal filters

1981
- 1981-12-09 FR FR8122984A patent/FR2517905B1/fr not_active Expired
1982
- 1982-12-06 CA CA000417032A patent/CA1208733A/en not_active Expired
- 1982-12-06 US US06/447,242 patent/US4578544A/en not_active Expired - Fee Related
- 1982-12-06 ES ES517955A patent/ES8308663A1/es not_active Expired
- 1982-12-08 EP EP82402244A patent/EP0081437B1/fr not_active Expired
- 1982-12-08 DK DK545682A patent/DK545682A/da not_active Application Discontinuation
- 1982-12-08 FI FI824217A patent/FI74845C/fi not_active IP Right Cessation
- 1982-12-08 HU HU823951A patent/HU186186B/hu unknown
- 1982-12-08 NO NO824130A patent/NO156628C/no unknown
- 1982-12-08 DE DE8282402244T patent/DE3275799D1/de not_active Expired
- 1982-12-08 SU SU823523577A patent/SU1308208A3/ru active
- 1982-12-09 JP JP57214731A patent/JPS58114534A/ja active Pending

Also Published As

Publication number	Publication date
FI74845B (fi)	1987-11-30
FR2517905A1 (fr)	1983-06-10
FI74845C (fi)	1988-03-10
DE3275799D1 (en)	1987-04-23
ES517955A0 (es)	1983-09-16
NO824130L (no)	1983-06-10
SU1308208A3 (ru)	1987-04-30
CA1208733A (en)	1986-07-29
DK545682A (da)	1983-06-10
EP0081437B1 (fr)	1987-03-18
US4578544A (en)	1986-03-25
NO156628B (no)	1987-07-13
NO156628C (no)	1987-10-21
EP0081437A1 (fr)	1983-06-15
FR2517905B1 (fr)	1985-11-29
HU186186B (en)	1985-06-28
ES8308663A1 (es)	1983-09-16
JPS58114534A (ja)	1983-07-07
FI824217L (fi)	1983-06-10

Publication	Publication Date	Title
BE893795A (fr)	1983-01-10	Inhalateur-doseur
AR228298A1 (es)	1983-02-15	Cubo-rompecabezas
AT382116B (de)	1987-01-12	Geraeuschgedaempftes schienenrad
BE889765A (fr)	1981-11-16	Stijgerelement
ATA518981A (de)	1983-04-15	Schipaar
BE893877A (fr)	1982-11-16	Mond-en tandverzorgingsmiddel
BE894481A (fr)	1983-01-17	Stromingsmeter
AT384100B (de)	1987-09-25	Drehrohrofen
BE891918A (fr)	1982-07-28	Draaibare schoorsteenkap
BE891837A (fr)	1982-05-17	Anthracycline-glycosides
AT385733B (de)	1988-05-10	Skibob
AT379276B (de)	1985-12-10	Hoergeraet
ATA183681A (de)	1983-02-15	Blockhaus
AT374656B (de)	1984-05-25	Maishaecksler
BE893857A (fr)	1982-11-16	Comptoir-vitrine
ATA243482A (de)	1986-03-15	Mauerstein
AT371306B (de)	1983-06-27	Hoergeraet
AT368631B (de)	1982-10-25	Zweibein
ATA492281A (de)	1985-08-15	Karniese
BE893123A (fr)	1982-11-08	Thienyl- et benzothienyl-t-butylamino-phenoxypropanols
AR222933A1 (es)	1981-06-30	Secador-escurridor
AR225979A1 (es)	1982-05-14	Tablestacado rompeolas
AT374934B (de)	1984-06-12	Kapodaster
BR6101110U (pt)	1983-03-22	Matraca
BR6100815U (pt)	1983-01-18	Gelobag

Legal Events

Date	Code	Title	Description
2004-08-31	MM	Patent lapsed	Owner name: SOCIETE ANONYME DE TELECOMMUNICATIONS