JPS59151544A - 適応形反響消去装置 - Google Patents

適応形反響消去装置

Info

Publication number
JPS59151544A
JPS59151544A JP2470683A JP2470683A JPS59151544A JP S59151544 A JPS59151544 A JP S59151544A JP 2470683 A JP2470683 A JP 2470683A JP 2470683 A JP2470683 A JP 2470683A JP S59151544 A JPS59151544 A JP S59151544A
Authority
JP
Japan
Prior art keywords
circuit
signal
tap coefficient
echo
storage circuit
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.)
Granted
Application number
JP2470683A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6343013B2 (enrdf_load_stackoverflow
Inventor
Hidenori Ito
伊藤 栄紀
Yuzo Fukushi
福士 雄三
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2470683A priority Critical patent/JPS59151544A/ja
Publication of JPS59151544A publication Critical patent/JPS59151544A/ja
Publication of JPS6343013B2 publication Critical patent/JPS6343013B2/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)
JP2470683A 1983-02-18 1983-02-18 適応形反響消去装置 Granted JPS59151544A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2470683A JPS59151544A (ja) 1983-02-18 1983-02-18 適応形反響消去装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2470683A JPS59151544A (ja) 1983-02-18 1983-02-18 適応形反響消去装置

Publications (2)

Publication Number Publication Date
JPS59151544A true JPS59151544A (ja) 1984-08-30
JPS6343013B2 JPS6343013B2 (enrdf_load_stackoverflow) 1988-08-26

Family

ID=12145615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2470683A Granted JPS59151544A (ja) 1983-02-18 1983-02-18 適応形反響消去装置

Country Status (1)

Country Link
JP (1) JPS59151544A (enrdf_load_stackoverflow)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56153850A (en) * 1980-04-28 1981-11-28 Kokusai Denshin Denwa Co Ltd <Kdd> Echo control system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56153850A (en) * 1980-04-28 1981-11-28 Kokusai Denshin Denwa Co Ltd <Kdd> Echo control system

Also Published As

Publication number Publication date
JPS6343013B2 (enrdf_load_stackoverflow) 1988-08-26

Similar Documents

Publication Publication Date Title
USRE35867E (en) Method and apparatus for controlling coefficients of adaptive filter
JPH0527287B2 (enrdf_load_stackoverflow)
US4736414A (en) Method of and device for the digital cancellation of the echo generated in connections with time-varying characteristics
US5920548A (en) Echo path delay estimation
US5289539A (en) Echo canceller using impulse response estimating method
CA1251269A (en) Noise cancellation
US4479036A (en) Echo control system
JPS61135239A (ja) エコ−キヤンセラ
JPS59151544A (ja) 適応形反響消去装置
JPH03266516A (ja) アダプティブ・フィルタ適応化方法及び装置
US6947395B1 (en) Locating network echos
JPS642252B2 (enrdf_load_stackoverflow)
JP2949989B2 (ja) エコー消去装置
JPS645775B2 (enrdf_load_stackoverflow)
EP0715407B1 (en) Method and apparatus for controlling coefficients of adaptive filter
JP2841952B2 (ja) エコー消去装置
JPS6379426A (ja) 適応形反響消去装置
JPS6398226A (ja) 適応形反響消去装置
JPH02113731A (ja) エコーキャンセラ
JPS5990434A (ja) 適応形反響消去装置
JP2556195B2 (ja) エコー消去装置
JPS5961234A (ja) 適応型反響消去装置
JPS6342892B2 (enrdf_load_stackoverflow)
JPS6010820A (ja) エコ−キヤンセラ−の駆動方法
JPH05152999A (ja) エコー消去装置