JPH0473649B2 - - Google Patents

Info

Publication number
JPH0473649B2
JPH0473649B2 JP23673483A JP23673483A JPH0473649B2 JP H0473649 B2 JPH0473649 B2 JP H0473649B2 JP 23673483 A JP23673483 A JP 23673483A JP 23673483 A JP23673483 A JP 23673483A JP H0473649 B2 JPH0473649 B2 JP H0473649B2
Authority
JP
Japan
Prior art keywords
tap
output
circuit
polarity
signal
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
Application number
JP23673483A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60127824A (ja
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 filed Critical
Priority to JP23673483A priority Critical patent/JPS60127824A/ja
Priority to US06/679,825 priority patent/US4707824A/en
Priority to DE8484115339T priority patent/DE3478176D1/de
Priority to EP84115339A priority patent/EP0145022B1/en
Priority to CA000470142A priority patent/CA1225130A/en
Publication of JPS60127824A publication Critical patent/JPS60127824A/ja
Publication of JPH0473649B2 publication Critical patent/JPH0473649B2/ja
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/02Details
    • H04B3/20Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23Reducing 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/02Details
    • H04B3/20Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23Reducing 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
    • H04B3/238Reducing 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)
JP23673483A 1983-12-15 1983-12-15 エコ−除去方法及び装置 Granted JPS60127824A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP23673483A JPS60127824A (ja) 1983-12-15 1983-12-15 エコ−除去方法及び装置
US06/679,825 US4707824A (en) 1983-12-15 1984-12-10 Method and apparatus for cancelling echo
DE8484115339T DE3478176D1 (en) 1983-12-15 1984-12-13 Method and apparatus for cancelling echo
EP84115339A EP0145022B1 (en) 1983-12-15 1984-12-13 Method and apparatus for cancelling echo
CA000470142A CA1225130A (en) 1983-12-15 1984-12-14 Method and apparatus for cancelling echo

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23673483A JPS60127824A (ja) 1983-12-15 1983-12-15 エコ−除去方法及び装置

Publications (2)

Publication Number Publication Date
JPS60127824A JPS60127824A (ja) 1985-07-08
JPH0473649B2 true JPH0473649B2 (ko) 1992-11-24

Family

ID=17004992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23673483A Granted JPS60127824A (ja) 1983-12-15 1983-12-15 エコ−除去方法及び装置

Country Status (1)

Country Link
JP (1) JPS60127824A (ko)

Also Published As

Publication number Publication date
JPS60127824A (ja) 1985-07-08

Similar Documents

Publication Publication Date Title
US4707824A (en) Method and apparatus for cancelling echo
CA2010652C (en) Echo canceller having fir and iir filters for cancelling long tail echoes
JPS5842665B2 (ja) エコ−・順方向一体等化装置
EP0192359B1 (en) Noise cancellation
EP0543568A2 (en) High resolution filtering using low resolution processors
US4769808A (en) Method of cancelling echoes in full-duplex data transmission system
US4334128A (en) Echo canceler for homochronous data transmission systems
IE53760B1 (en) A balance filter for a telecommunication system
JPH0473649B2 (ko)
JPH0473650B2 (ko)
JPH0473331B2 (ko)
JPS59211338A (ja) エコ−キヤンセラ−装置
JPS5860835A (ja) 反響打消し装置
JPS6173432A (ja) エコ−除去装置
JPS6167330A (ja) エコ−除去方法
JPH03171835A (ja) ディジタル加入者線伝送装置
JPH08213939A (ja) エコーキャンセラ装置
JPS6175629A (ja) エコ−除去方法
JPS62268205A (ja) 非線形補償型適応デイジタルフイルタ
JPS6175631A (ja) エコ−除去装置
JPS6173434A (ja) エコ−除去方法
JPS61228730A (ja) エコ−除去装置
JPS62271528A (ja) 加入者線伝送装置
JPS61187426A (ja) エコ−除去装置
JPS61228731A (ja) エコ−除去装置