[go: up one dir, main page]

JPS6429094A - Echo erasing device - Google Patents

Echo erasing device

Info

Publication number
JPS6429094A
JPS6429094A JP18361187A JP18361187A JPS6429094A JP S6429094 A JPS6429094 A JP S6429094A JP 18361187 A JP18361187 A JP 18361187A JP 18361187 A JP18361187 A JP 18361187A JP S6429094 A JPS6429094 A JP S6429094A
Authority
JP
Japan
Prior art keywords
echo
pass
echo signal
canceler circuit
low
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
JP18361187A
Other languages
English (en)
Other versions
JP2542625B2 (ja
Inventor
Hiroshi Oikawa
Shoji Makino
Shigenobu Minami
Takashi Saeki
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
Nippon Telegraph and Telephone Corp
Original Assignee
Toshiba Corp
Nippon Telegraph and Telephone 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 Toshiba Corp, Nippon Telegraph and Telephone Corp filed Critical Toshiba Corp
Priority to JP62183611A priority Critical patent/JP2542625B2/ja
Publication of JPS6429094A publication Critical patent/JPS6429094A/ja
Application granted granted Critical
Publication of JP2542625B2 publication Critical patent/JP2542625B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Circuit For Audible Band Transducer (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
JP62183611A 1987-07-24 1987-07-24 反響消去装置 Expired - Fee Related JP2542625B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62183611A JP2542625B2 (ja) 1987-07-24 1987-07-24 反響消去装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62183611A JP2542625B2 (ja) 1987-07-24 1987-07-24 反響消去装置

Publications (2)

Publication Number Publication Date
JPS6429094A true JPS6429094A (en) 1989-01-31
JP2542625B2 JP2542625B2 (ja) 1996-10-09

Family

ID=16138820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62183611A Expired - Fee Related JP2542625B2 (ja) 1987-07-24 1987-07-24 反響消去装置

Country Status (1)

Country Link
JP (1) JP2542625B2 (ja)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03143035A (ja) * 1989-08-07 1991-06-18 American Teleph & Telegr Co <Att> エコーキャンセラとエコーキャンセリング方法
JPH04123621A (ja) * 1990-09-14 1992-04-23 Nippon Telegr & Teleph Corp <Ntt> 反響消去装置
FR2678453A1 (fr) * 1991-06-27 1992-12-31 Alcatel Business Systems Poste telephonique a dispositif d'annulation d'echo.
JPH0555961A (ja) * 1991-08-27 1993-03-05 Aiphone Co Ltd 周波数分割を用いた拡声同時通話方式
JP2008288718A (ja) * 2007-05-15 2008-11-27 Yamaha Corp 音響エコーキャンセラ
JP2011232691A (ja) * 2010-04-30 2011-11-17 Honda Motor Co Ltd 残響抑圧装置、及び残響抑圧方法
WO2015159901A1 (ja) * 2014-04-14 2015-10-22 ヤマハ株式会社 放収音装置及び放収音方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62163424A (ja) * 1986-01-13 1987-07-20 Nec Corp 音響用エコ−キヤンセラ

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62163424A (ja) * 1986-01-13 1987-07-20 Nec Corp 音響用エコ−キヤンセラ

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03143035A (ja) * 1989-08-07 1991-06-18 American Teleph & Telegr Co <Att> エコーキャンセラとエコーキャンセリング方法
JPH04123621A (ja) * 1990-09-14 1992-04-23 Nippon Telegr & Teleph Corp <Ntt> 反響消去装置
FR2678453A1 (fr) * 1991-06-27 1992-12-31 Alcatel Business Systems Poste telephonique a dispositif d'annulation d'echo.
JPH0555961A (ja) * 1991-08-27 1993-03-05 Aiphone Co Ltd 周波数分割を用いた拡声同時通話方式
JP2008288718A (ja) * 2007-05-15 2008-11-27 Yamaha Corp 音響エコーキャンセラ
JP2011232691A (ja) * 2010-04-30 2011-11-17 Honda Motor Co Ltd 残響抑圧装置、及び残響抑圧方法
US9002024B2 (en) 2010-04-30 2015-04-07 Honda Motor Co., Ltd. Reverberation suppressing apparatus and reverberation suppressing method
WO2015159901A1 (ja) * 2014-04-14 2015-10-22 ヤマハ株式会社 放収音装置及び放収音方法
JP2015204535A (ja) * 2014-04-14 2015-11-16 ヤマハ株式会社 放収音装置
US9807215B2 (en) 2014-04-14 2017-10-31 Yamaha Corporation Sound emission and collection device, and sound emission and collection method
US10038769B2 (en) 2014-04-14 2018-07-31 Yamaha Corporation Sound emission and collection device, and sound emission and collection method

Also Published As

Publication number Publication date
JP2542625B2 (ja) 1996-10-09

Similar Documents

Publication Publication Date Title
US5835608A (en) Signal separating system
US4184047A (en) Audio signal processing system
CA2101228A1 (en) Active acoustic attenuation system with power limiting
EP0468610A3 (en) Method and apparatus for performing noise cancelling in headphones
ES8202211A1 (es) Un dispositivo para convertir una senal electrica en una se-nal acustica
AU7345591A (en) Tinnitus masking device
AU4590893A (en) Method and device for active noise reduction in a local area
ATE144066T1 (de) Elektroakustische anordnung für hörgeräte mit lärmunterdrückung
US4449237A (en) Audio feedback suppressor
GB2317072A (en) Apparatus and method for increasing the intelligibility of a loudspeaker output and for echo cancellation in telephones
US5559891A (en) Device to be used for changing the acoustic properties of a room
JPS6429094A (en) Echo erasing device
US4415768A (en) Tuning apparatus and method
JP3059753B2 (ja) 雑音除去装置
JPS52127140A (en) Receiver
JPS6429154A (en) Voice conference equipment
JPS5791096A (en) Method and apparatus for noise reduction by head phone
SU718946A1 (ru) Устройство дл звукоусилени
KR200161692Y1 (ko) 초음파 차폐장치
JPS6096997A (ja) 拡声装置
JP2766887B2 (ja) 反響消去装置
SU388369A1 (ru) УСТРОЙСТВО дл ДИСКРЕТНОГО СИНТЕЗА РЕЧИ
JPH03196797A (ja) エコーキャンセラ
JPS6424696A (en) Echo canceller device for acoustic application
JPS6412648A (en) Echo canceller

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees