JPS5890832A - 反響打消し装置 - Google Patents

反響打消し装置

Info

Publication number
JPS5890832A
JPS5890832A JP18954681A JP18954681A JPS5890832A JP S5890832 A JPS5890832 A JP S5890832A JP 18954681 A JP18954681 A JP 18954681A JP 18954681 A JP18954681 A JP 18954681A JP S5890832 A JPS5890832 A JP S5890832A
Authority
JP
Japan
Prior art keywords
echo
signal
circuit
path characteristics
training
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
JP18954681A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6222290B2 (enrdf_load_stackoverflow
Inventor
Shigenobu Minami
重信 南
Tadamichi Kawasaki
川崎　忠道
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP18954681A priority Critical patent/JPS5890832A/ja
Publication of JPS5890832A publication Critical patent/JPS5890832A/ja
Publication of JPS6222290B2 publication Critical patent/JPS6222290B2/ja
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
JP18954681A 1981-11-26 1981-11-26 反響打消し装置 Granted JPS5890832A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18954681A JPS5890832A (ja) 1981-11-26 1981-11-26 反響打消し装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18954681A JPS5890832A (ja) 1981-11-26 1981-11-26 反響打消し装置

Publications (2)

Publication Number Publication Date
JPS5890832A true JPS5890832A (ja) 1983-05-30
JPS6222290B2 JPS6222290B2 (enrdf_load_stackoverflow) 1987-05-18

Family

ID=16243117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18954681A Granted JPS5890832A (ja) 1981-11-26 1981-11-26 反響打消し装置

Country Status (1)

Country Link
JP (1) JPS5890832A (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS622723A (ja) * 1985-06-28 1987-01-08 Hitachi Ltd 自動平衡回路
US4677668A (en) * 1984-05-01 1987-06-30 North Carolina State University Echo canceller using parametric methods
JPH02260856A (ja) * 1988-12-28 1990-10-23 American Teleph & Telegr Co <Att> 音声信号処理方法
JPH02260855A (ja) * 1988-12-28 1990-10-23 American Teleph & Telegr Co <Att> 音声処理回路の動作準備状態を判断する方法
JPH02264548A (ja) * 1988-12-28 1990-10-29 American Teleph & Telegr Co <Att> 音響環境の型の確認方法
EP0708537A4 (en) * 1994-05-06 1997-08-06 Nippon Telegraph & Telephone METHOD FOR ECHOCOMPENSATION AND ECHOPHAL ESTIMATION
US6061444A (en) * 1994-05-07 2000-05-09 Ntt Mobile Communications Network, Inc. Echo canceler and method for learning for the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4677668A (en) * 1984-05-01 1987-06-30 North Carolina State University Echo canceller using parametric methods
JPS622723A (ja) * 1985-06-28 1987-01-08 Hitachi Ltd 自動平衡回路
JPH02260856A (ja) * 1988-12-28 1990-10-23 American Teleph & Telegr Co <Att> 音声信号処理方法
JPH02260855A (ja) * 1988-12-28 1990-10-23 American Teleph & Telegr Co <Att> 音声処理回路の動作準備状態を判断する方法
JPH02264548A (ja) * 1988-12-28 1990-10-29 American Teleph & Telegr Co <Att> 音響環境の型の確認方法
EP0708537A4 (en) * 1994-05-06 1997-08-06 Nippon Telegraph & Telephone METHOD FOR ECHOCOMPENSATION AND ECHOPHAL ESTIMATION
US5859907A (en) * 1994-05-06 1999-01-12 Ntt Mobile Communications Network, Inc. Echo canceler and echo path estimating method
US6061444A (en) * 1994-05-07 2000-05-09 Ntt Mobile Communications Network, Inc. Echo canceler and method for learning for the same

Also Published As

Publication number Publication date
JPS6222290B2 (enrdf_load_stackoverflow) 1987-05-18

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