[go: up one dir, main page]

ES2021285B3 - Compensador de eco - Google Patents

Compensador de eco

Info

Publication number
ES2021285B3
ES2021285B3 ES87101065T ES87101065T ES2021285B3 ES 2021285 B3 ES2021285 B3 ES 2021285B3 ES 87101065 T ES87101065 T ES 87101065T ES 87101065 T ES87101065 T ES 87101065T ES 2021285 B3 ES2021285 B3 ES 2021285B3
Authority
ES
Spain
Prior art keywords
digital
circuit
analog
khz
trunk
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 - Lifetime
Application number
ES87101065T
Other languages
English (en)
Inventor
Von Pfeil
Hartmut Kemmesies
Erhard Waretzi
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Application granted granted Critical
Publication of ES2021285B3 publication Critical patent/ES2021285B3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04B3/238—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)
  • Optical Communication System (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)
  • Electrophotography Configuration And Component (AREA)
  • Lock And Its Accessories (AREA)
  • Primary Cells (AREA)
ES87101065T 1986-01-30 1987-01-27 Compensador de eco Expired - Lifetime ES2021285B3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3602803 1986-01-30

Publications (1)

Publication Number Publication Date
ES2021285B3 true ES2021285B3 (es) 1991-11-01

Family

ID=6292977

Family Applications (1)

Application Number Title Priority Date Filing Date
ES87101065T Expired - Lifetime ES2021285B3 (es) 1986-01-30 1987-01-27 Compensador de eco

Country Status (8)

Country Link
EP (1) EP0231854B1 (es)
JP (1) JPH06101668B2 (es)
AT (1) ATE62365T1 (es)
AU (1) AU574282B2 (es)
CA (1) CA1332449C (es)
DE (1) DE3768975D1 (es)
ES (1) ES2021285B3 (es)
GR (1) GR3001866T3 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0300427B1 (en) * 1987-07-20 1992-09-30 Nec Corporation Echo canceller
ES2035186T3 (es) * 1987-07-29 1993-04-16 Siemens Aktiengesellschaft Compensador de ecos.
AT391784B (de) * 1987-11-25 1990-11-26 Siemens Ag Oesterreich Verfahren zur adaptiven kompensation eines echos in einer kommunikationseinrichtung
DE4202206C2 (de) * 1992-01-28 1998-06-10 Bosch Gmbh Robert Analog/digitaler Kompensator mit Pegelregelung für eine Gabelschaltung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496364A1 (fr) * 1980-12-17 1982-06-18 Trt Telecom Radio Electr Annuleur d'echo pour transmission telephonique par voies numeriques mettant en oeuvre une loi de codage pseudo-logarithmique
FR2556530B1 (fr) * 1983-10-28 1986-04-04 Telediffusion Fse Dispositif de correction d'echos, notamment pour systeme de diffusion de donnees
FR2569322B1 (fr) * 1984-08-17 1986-12-05 Trt Telecom Radio Electr Annuleur d'echo utilisant la modulation delta
US4769808A (en) * 1984-09-19 1988-09-06 Nec Corporation Method of cancelling echoes in full-duplex data transmission system
AU4695485A (en) * 1984-09-21 1986-03-27 Alcatel N.V. Digital hybrid

Also Published As

Publication number Publication date
EP0231854A1 (de) 1987-08-12
AU6809587A (en) 1987-08-13
GR3001866T3 (en) 1992-11-23
AU574282B2 (en) 1988-06-30
EP0231854B1 (de) 1991-04-03
ATE62365T1 (de) 1991-04-15
DE3768975D1 (de) 1991-05-08
CA1332449C (en) 1994-10-11
JPS62183230A (ja) 1987-08-11
JPH06101668B2 (ja) 1994-12-12

Similar Documents

Publication Publication Date Title
KR960702965A (ko) 반향소거장치 및 반향경로 추정방법
FI863169A7 (fi) Fullstaendigt dubbelriktad hoegtalartelefon foer radio- och kabeltelefonsystem.
DE59712149D1 (de) Verfahren zur störsignalunterdrückung bei der übertragung digitaler signale
UA5977A1 (uk) Спосіб компенсації перехресних і/або ехосигналів і пристрій для його впровадження
ES2021285B3 (es) Compensador de eco
EP0451759A3 (en) Method for testing the transmission characteristics of a subscriber line circuit
KR100427231B1 (ko) 아날로그 에코 필터
CA2091067A1 (en) Alarm and test system for a digital main line
DE3172701D1 (en) Digital frequency receiver
ES2126547T3 (es) Terminal de trasmision de datos en una via analogica bidireccional con anulacion de eco acoplada al ritmo de recepcion.
FI943271A0 (fi) Laite kaiun poistoon käytetyn adaptiivisen suodattimen parametrien ei-toivotun ajelehtimisen riskin vähentämiseksi
SE8203102L (sv) Adaptiv ekokompenseringsanordning for digital duplexkommunikation via tvatradsledningar
RU97117276A (ru) Способ защиты информации, принимаемой по проводным каналам связи и система для его осуществления
EP0927467B1 (en) Circuit configuration for adapting a multispeed modem to a line and adaptation method thereof
TW355889B (en) Circuit arrangement for line adaptation and echo suppression
KR890002374Y1 (ko) 키시스템의 하이브리드 회로
CA2350281A1 (en) Alarm and test system for a digital main line
EP0054645A3 (en) Pin diode switch
JPS55123243A (en) Echo canceler
JPS62132442A (ja) 反響消去方法
ATE138232T1 (de) Verfahren und schaltungsanordnung zum kompensieren von echosignalen bei einer digitalsignalübertragung über eine zweidrahtleitung
JPS58115944A (ja) 誘導無線地上側送受信装置
EP0480322A3 (es)
SE9900838D0 (sv) Echo and distortion cancellation arrangement
KR960016294A (ko) 데이타 송수신 장치