DE59307766D1 - Schaltungsanordnung für elektroakustische Anlagen - Google Patents

Schaltungsanordnung für elektroakustische Anlagen

Info

Publication number
DE59307766D1
DE59307766D1 DE59307766T DE59307766T DE59307766D1 DE 59307766 D1 DE59307766 D1 DE 59307766D1 DE 59307766 T DE59307766 T DE 59307766T DE 59307766 T DE59307766 T DE 59307766T DE 59307766 D1 DE59307766 D1 DE 59307766D1
Authority
DE
Germany
Prior art keywords
circuit arrangement
hands
echo signals
speech phase
free talking
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 - Fee Related
Application number
DE59307766T
Other languages
English (en)
Inventor
Michael Walker
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.)
Alcatel Lucent SAS
Original Assignee
Alcatel Alsthom Compagnie Generale dElectricite
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 Alcatel Alsthom Compagnie Generale dElectricite filed Critical Alcatel Alsthom Compagnie Generale dElectricite
Application granted granted Critical
Publication of DE59307766D1 publication Critical patent/DE59307766D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Transceivers (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Stereophonic System (AREA)
DE59307766T 1992-08-27 1993-08-11 Schaltungsanordnung für elektroakustische Anlagen Expired - Fee Related DE59307766D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4228479A DE4228479A1 (de) 1992-08-27 1992-08-27 Schaltungsanordnung für elektroakustische Anlagen

Publications (1)

Publication Number Publication Date
DE59307766D1 true DE59307766D1 (de) 1998-01-15

Family

ID=6466544

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4228479A Withdrawn DE4228479A1 (de) 1992-08-27 1992-08-27 Schaltungsanordnung für elektroakustische Anlagen
DE59307766T Expired - Fee Related DE59307766D1 (de) 1992-08-27 1993-08-11 Schaltungsanordnung für elektroakustische Anlagen

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE4228479A Withdrawn DE4228479A1 (de) 1992-08-27 1992-08-27 Schaltungsanordnung für elektroakustische Anlagen

Country Status (4)

Country Link
EP (1) EP0584649B1 (de)
AT (1) ATE160915T1 (de)
DE (2) DE4228479A1 (de)
ES (1) ES2111670T3 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19650410C1 (de) * 1996-12-05 1998-05-07 Deutsche Telekom Ag Verfahren und Vorrichtung zur Stör- und Echounterdrückung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH042928A (ja) * 1990-04-19 1992-01-07 Matsushita Electric Ind Co Ltd 音場制御装置
JPH0477093A (ja) * 1990-07-16 1992-03-11 Pioneer Electron Corp ハウリング防止機能を備えた音響装置
GB2249852A (en) * 1990-10-29 1992-05-20 Sandia Corp Circuit for echo and noise suppression of acoustic signals transmitted through a drillstring

Also Published As

Publication number Publication date
DE4228479A1 (de) 1994-03-03
EP0584649A1 (de) 1994-03-02
EP0584649B1 (de) 1997-12-03
ATE160915T1 (de) 1997-12-15
ES2111670T3 (es) 1998-03-16

Similar Documents

Publication Publication Date Title
TW370747B (en) Method and apparatus for using state determination to control functional elements in digital telephone systems
JPH0511687B2 (de)
KR960702965A (ko) 반향소거장치 및 반향경로 추정방법
SK282101B6 (sk) Sieť s potlačenou ozvenou
CA2225203A1 (en) Hands-free telephone
CA2014864C (en) Training method for an echo canceller for use in a voice conference system
DE59307766D1 (de) Schaltungsanordnung für elektroakustische Anlagen
KR100279825B1 (ko) 교환기에서 에코 및 측음 현상을 제거하는 회로
JPH07121027B2 (ja) 拡声電話機
JP3212796B2 (ja) エコーキャンセラ
US3231687A (en) Echo suppressor with improved break-in
KR0121115Y1 (ko) 전화기의 송수화회로
JP2000040985A (ja) エコーキャンセラ
JPH04185023A (ja) エコーキャンセラ装置
JPH0758673A (ja) エコー防止回路
GB2251765A (en) Interactive telephone announcement apparatus
JPS62269451A (ja) 拡声電話機
JPS63272254A (ja) 電話装置
JPH01319353A (ja) 音声会議装置
JP3003383B2 (ja) Ｐｂｘの音声品質保証装置
JPS62163426A (ja) 音響用エコ−キヤンセラの送信制御回路
JPH01256821A (ja) 適応形反響消去装置
JPH02146827A (ja) エコーキャンセラ
JPH03188718A (ja) エコーキャンセラトレーニング方式
JPS62235826A (ja) エコ−キヤンセル方式

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: ALCATEL, PARIS, FR

8339 Ceased/non-payment of the annual fee