DE3669820D1 - 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
DE3669820D1
DE3669820D1 DE8686201481T DE3669820T DE3669820D1 DE 3669820 D1 DE3669820 D1 DE 3669820D1 DE 8686201481 T DE8686201481 T DE 8686201481T DE 3669820 T DE3669820 T DE 3669820T DE 3669820 D1 DE3669820 D1 DE 3669820D1
Authority
DE
Germany
Prior art keywords
larsen
telephone
receiver
arrangement
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 - Lifetime
Application number
DE8686201481T
Other languages
English (en)
Inventor
Jean-Pierre Coulmance
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of DE3669820D1 publication Critical patent/DE3669820D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Telephone Function (AREA)
DE8686201481T 1985-09-03 1986-08-29 Fernsprechapparat mit einem mit einer anti-larsen-anordnung versehenen empfangsverstaerker. Expired - Lifetime DE3669820D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8513062A FR2586878B1 (fr) 1985-09-03 1985-09-03 Poste telephonique muni d'une ecoute amplifiee et d'un dispositif anti-larsen.

Publications (1)

Publication Number Publication Date
DE3669820D1 true DE3669820D1 (de) 1990-04-26

Family

ID=9322585

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686201481T Expired - Lifetime DE3669820D1 (de) 1985-09-03 1986-08-29 Fernsprechapparat mit einem mit einer anti-larsen-anordnung versehenen empfangsverstaerker.

Country Status (6)

Country Link
US (1) US4723277A (de)
EP (1) EP0213679B1 (de)
JP (1) JPH0710080B2 (de)
CN (1) CN1007198B (de)
DE (1) DE3669820D1 (de)
FR (1) FR2586878B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1204293B1 (de) * 2000-11-06 2008-09-17 Honda Giken Kogyo Kabushiki Kaisha Sprachübertragungsanordnung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2481550B1 (fr) * 1980-04-25 1985-08-02 Trt Telecom Radio Electr Dispositif de protection contre l'effet larsen dans un poste telephonique a haut-parleur
CA1186826A (en) * 1981-03-18 1985-05-07 Jin H. Yun Loudspeaker telephone system
FR2537810A1 (fr) * 1982-12-14 1984-06-15 Thomson Csf Poste telephonique a ecoute amplifiee muni d'un dispositif antilarsen

Also Published As

Publication number Publication date
JPH0710080B2 (ja) 1995-02-01
US4723277A (en) 1988-02-02
EP0213679B1 (de) 1990-03-21
EP0213679A1 (de) 1987-03-11
FR2586878B1 (fr) 1987-11-13
CN1007198B (zh) 1990-03-14
FR2586878A1 (fr) 1987-03-06
CN86106808A (zh) 1987-07-08
JPS6257348A (ja) 1987-03-13

Similar Documents

Publication Publication Date Title
DE3668102D1 (de) An einer oberflaeche montierter verbinder.
DE3583629D1 (de) Integrierte schaltung mit einer schmelzsicherungsschaltung.
NO162981C (no) Roerforbindelse.
NO167321C (no) Roerkobling.
DE3650344D1 (de) Übertragungsendgerät.
DE3786247D1 (de) Lanzette mit rueckfuehrung.
NO830128L (no) Roerkobling.
ES547052A0 (es) Un tranmisor de television
DE3675505D1 (de) Gemischtoptischer sendeempfaenger.
DE3671684D1 (de) Am-empfaenger.
DE3667435D1 (de) Getriebeanordnung.
DE3577460D1 (de) An einer strassenleitplanke befestigbarer wegweiser.
DE3688351D1 (de) Fernsprecher.
DE3668739D1 (de) Komparatorschaltung mit verbesserten ausgangseigenschaften.
ES543940A0 (es) Un equipo transmisor de television.
NO830129L (no) Roerkobling.
DE3650077D1 (de) Metallisches Verbindungssystem mit einer ebenen Fläche.
NO830130L (no) Roerkobling.
ATA906284A (de) Polyolefin mit guten haftungseigenschaften
DE3889611D1 (de) Nachrichtensystem mit einer Telefonfunktion.
DE3586491D1 (de) Kohaerentes interface mit zurueckgeschleiftem empfangsspeicher.
NO160811C (no) Roerforbindelse.
DE59001475D1 (de) Isolierendes gehaeuseteil mit einer leiterdurchfuehrung.
DE3576018D1 (de) Galvanisches element mit einer polymerelektrode.
ATE14811T1 (de) Steckverbinder mit einer schwachen einfuehrkraft.

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: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL

8339 Ceased/non-payment of the annual fee