JPS58114554A - ハウリング防止装置 - Google Patents

ハウリング防止装置

Info

Publication number
JPS58114554A
JPS58114554A JP20967181A JP20967181A JPS58114554A JP S58114554 A JPS58114554 A JP S58114554A JP 20967181 A JP20967181 A JP 20967181A JP 20967181 A JP20967181 A JP 20967181A JP S58114554 A JPS58114554 A JP S58114554A
Authority
JP
Japan
Prior art keywords
delay time
signal
acoustic path
pseudo
howling
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
JP20967181A
Other languages
English (en)
Japanese (ja)
Other versions
JPS634985B2 (fr
Inventor
Takashi Ogiwara
隆 荻原
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 JP20967181A priority Critical patent/JPS58114554A/ja
Publication of JPS58114554A publication Critical patent/JPS58114554A/ja
Publication of JPS634985B2 publication Critical patent/JPS634985B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuit For Audible Band Transducer (AREA)
JP20967181A 1981-12-28 1981-12-28 ハウリング防止装置 Granted JPS58114554A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20967181A JPS58114554A (ja) 1981-12-28 1981-12-28 ハウリング防止装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20967181A JPS58114554A (ja) 1981-12-28 1981-12-28 ハウリング防止装置

Publications (2)

Publication Number Publication Date
JPS58114554A true JPS58114554A (ja) 1983-07-07
JPS634985B2 JPS634985B2 (fr) 1988-02-01

Family

ID=16576671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20967181A Granted JPS58114554A (ja) 1981-12-28 1981-12-28 ハウリング防止装置

Country Status (1)

Country Link
JP (1) JPS58114554A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041849A (ja) * 1983-08-18 1985-03-05 Toshiba Corp 拡声電話
JPS6248843A (ja) * 1985-08-28 1987-03-03 Rohm Co Ltd 音響結合防止回路
JPS6248844A (ja) * 1985-08-28 1987-03-03 Rohm Co Ltd 音響結合防止回路
JPS62157450A (ja) * 1985-12-29 1987-07-13 Rohm Co Ltd 電話装置
JPS6348923A (ja) * 1986-08-19 1988-03-01 Hitachi Ltd エコ−キヤンセラ−
JPS6429093A (en) * 1987-07-24 1989-01-31 Nippon Telegraph & Telephone Echo erasing device
US5259033A (en) * 1989-08-30 1993-11-02 Gn Danavox As Hearing aid having compensation for acoustic feedback
WO2008150022A1 (fr) * 2007-06-08 2008-12-11 Sony Corporation Processeur d'un signal sonore et procédé de définition d'un temps de retard
WO2018061956A1 (fr) * 2016-09-30 2018-04-05 ヤマハ株式会社 Appareil d'aide à la conversation et procédé d'aide à la conversation

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041849A (ja) * 1983-08-18 1985-03-05 Toshiba Corp 拡声電話
JPS6248843A (ja) * 1985-08-28 1987-03-03 Rohm Co Ltd 音響結合防止回路
JPS6248844A (ja) * 1985-08-28 1987-03-03 Rohm Co Ltd 音響結合防止回路
JPS62157450A (ja) * 1985-12-29 1987-07-13 Rohm Co Ltd 電話装置
JPS6348923A (ja) * 1986-08-19 1988-03-01 Hitachi Ltd エコ−キヤンセラ−
JPS6429093A (en) * 1987-07-24 1989-01-31 Nippon Telegraph & Telephone Echo erasing device
US5259033A (en) * 1989-08-30 1993-11-02 Gn Danavox As Hearing aid having compensation for acoustic feedback
WO2008150022A1 (fr) * 2007-06-08 2008-12-11 Sony Corporation Processeur d'un signal sonore et procédé de définition d'un temps de retard
JP2008306535A (ja) * 2007-06-08 2008-12-18 Sony Corp 音声信号処理装置、遅延時間の設定方法
WO2018061956A1 (fr) * 2016-09-30 2018-04-05 ヤマハ株式会社 Appareil d'aide à la conversation et procédé d'aide à la conversation
US10812901B2 (en) 2016-09-30 2020-10-20 Yamaha Corporation Conversation assist apparatus and conversation assist method
US10932042B2 (en) 2016-09-30 2021-02-23 Yamaha Corporation Conversation assist apparatus and conversation assist method

Also Published As

Publication number Publication date
JPS634985B2 (fr) 1988-02-01

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