DE3363301D1 - Telephone set with receiving amplifier provided with an anti-larsen arrangement - Google Patents

Telephone set with receiving amplifier provided with an anti-larsen arrangement

Info

Publication number
DE3363301D1
DE3363301D1 DE8383402322T DE3363301T DE3363301D1 DE 3363301 D1 DE3363301 D1 DE 3363301D1 DE 8383402322 T DE8383402322 T DE 8383402322T DE 3363301 T DE3363301 T DE 3363301T DE 3363301 D1 DE3363301 D1 DE 3363301D1
Authority
DE
Germany
Prior art keywords
signal
microphone
receiving
larsen
arrangement
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
Application number
DE8383402322T
Other languages
German (de)
English (en)
Inventor
Jean-Claude Kaire
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 SA filed Critical Thomson CSF SA
Application granted granted Critical
Publication of DE3363301D1 publication Critical patent/DE3363301D1/de
Expired 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
    • H04M9/10—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)
DE8383402322T 1982-12-14 1983-12-02 Telephone set with receiving amplifier provided with an anti-larsen arrangement Expired DE3363301D1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DE3363301D1 true DE3363301D1 (en) 1986-06-05

Family

ID=9280090

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383402322T Expired DE3363301D1 (en) 1982-12-14 1983-12-02 Telephone set with receiving amplifier provided with an anti-larsen arrangement

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
ATE19571T1 (de) 1986-05-15
FR2537810B1 (https=) 1985-03-08
EP0114008A3 (en) 1984-08-22
EP0114008B1 (fr) 1986-04-30
EP0114008A2 (fr) 1984-07-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee