ATE19571T1 - Fernsprechapparat mit einem mit einer anti-larsen anordnung versehenen empfangsverstaerker. - Google Patents

Fernsprechapparat mit einem mit einer anti-larsen anordnung versehenen empfangsverstaerker.

Info

Publication number
ATE19571T1
ATE19571T1 AT83402322T AT83402322T ATE19571T1 AT E19571 T1 ATE19571 T1 AT E19571T1 AT 83402322 T AT83402322 T AT 83402322T AT 83402322 T AT83402322 T AT 83402322T AT E19571 T1 ATE19571 T1 AT E19571T1
Authority
AT
Austria
Prior art keywords
signal
microphone
larsen
receiving
telephone set
Prior art date
Application number
AT83402322T
Other languages
German (de)
English (en)
Inventor
Jean-Claude Kaire
Original Assignee
Thomson Csf
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 Thomson Csf filed Critical Thomson Csf
Application granted granted Critical
Publication of ATE19571T1 publication Critical patent/ATE19571T1/de

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
    • H04M9/10—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic with switching of direction of transmission by voice frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Headphones And Earphones (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Telephone Set Structure (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
AT83402322T 1982-12-14 1983-12-02 Fernsprechapparat mit einem mit einer anti-larsen anordnung versehenen empfangsverstaerker. ATE19571T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8220964A FR2537810A1 (fr) 1982-12-14 1982-12-14 Poste telephonique a ecoute amplifiee muni d'un dispositif antilarsen
EP83402322A EP0114008B1 (fr) 1982-12-14 1983-12-02 Poste téléphonique à écoute amplifiée muni d'un dispositif anti-larsen

Publications (1)

Publication Number Publication Date
ATE19571T1 true ATE19571T1 (de) 1986-05-15

Family

ID=9280090

Family Applications (1)

Application Number Title Priority Date Filing Date
AT83402322T ATE19571T1 (de) 1982-12-14 1983-12-02 Fernsprechapparat mit einem mit einer anti-larsen anordnung versehenen empfangsverstaerker.

Country Status (4)

Country Link
EP (1) EP0114008B1 (https=)
AT (1) ATE19571T1 (https=)
DE (1) DE3363301D1 (https=)
FR (1) FR2537810A1 (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2586878B1 (fr) * 1985-09-03 1987-11-13 Radiotechnique Compelec Poste telephonique muni d'une ecoute amplifiee et d'un dispositif anti-larsen.
FR2611408B1 (fr) * 1987-02-27 1989-05-26 Radiotechnique Compelec Circuit de commande d e gain d'un amplificateur d'ecoute par haut-parleur pour la suppression de l'effet larsen
JP4651231B2 (ja) * 2001-07-26 2011-03-16 富士通株式会社 光伝送システム

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3075045A (en) * 1960-08-29 1963-01-22 Bell Telephone Labor Inc Speakerphone
CA1186826A (en) * 1981-03-18 1985-05-07 Jin H. Yun Loudspeaker telephone system

Also Published As

Publication number Publication date
FR2537810A1 (fr) 1984-06-15
FR2537810B1 (https=) 1985-03-08
EP0114008A3 (en) 1984-08-22
DE3363301D1 (en) 1986-06-05
EP0114008B1 (fr) 1986-04-30
EP0114008A2 (fr) 1984-07-25

Similar Documents

Publication Publication Date Title
ES8202211A1 (es) Un dispositivo para convertir una senal electrica en una se-nal acustica
MY105371A (en) Acoustic signal reproducing apparatus.
GB1428466A (en) Hearing aid
ATE165505T1 (de) Vorrichtung zur unterdrückung des schnarchens
FI973284A0 (fi) Kuuntelulaite
JP2992294B2 (ja) ノイズ除去方法
EP0717547A3 (en) Automaticaly variable circuit of sound level of received voice signal in telephone
ATE82083T1 (de) Anordnungen zur stoerschall-verminderung.
GB1340105A (en) Aids for deaf persons
ATE19571T1 (de) Fernsprechapparat mit einem mit einer anti-larsen anordnung versehenen empfangsverstaerker.
US3566285A (en) Pitch synchronous reduction of signal envelope
JPS56106494A (en) Method and device for howling prevention of loudspeaker
JPS57186867A (en) Voice storing and reproducing system
JPS57131195A (en) Noise preventing microphone device of band limiting type
JPS56126397A (en) Speaker system
JPS5220801A (en) Automatic voice frequency elimination and control system
SE8100095L (sv) Forsterkare for digitala transmissionssystem
JPS6429154A (en) Voice conference equipment
STEENEKEN Active sound reduction systems(headsets)
JPS6446400A (en) Loud speaker for communication
JPS57113647A (en) Signal concealing device
JPS5553965A (en) Loudspeading simultaneous talking interphone system
JPS54158105A (en) Speaker device
GB1301675A (https=)
JPS5549003A (en) Frequency modulator

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee