ES2115168T3 - Dispositivo multicaptadores de toma de sonido y de tratamiento de la señal asociada. - Google Patents

Dispositivo multicaptadores de toma de sonido y de tratamiento de la señal asociada.

Info

Publication number
ES2115168T3
ES2115168T3 ES94400369T ES94400369T ES2115168T3 ES 2115168 T3 ES2115168 T3 ES 2115168T3 ES 94400369 T ES94400369 T ES 94400369T ES 94400369 T ES94400369 T ES 94400369T ES 2115168 T3 ES2115168 T3 ES 2115168T3
Authority
ES
Spain
Prior art keywords
noise
comes
signals
multichapter
microphones
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
ES94400369T
Other languages
English (en)
Inventor
Tourneur Gregoire Le
Andre Gilloire
Rene Larvor
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.)
Orange SA
Original Assignee
France Telecom 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 France Telecom SA filed Critical France Telecom SA
Application granted granted Critical
Publication of ES2115168T3 publication Critical patent/ES2115168T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

EL DISPOSITIVO DE TOMA DE SONIDO INCLUYE VARIOS CAPTADORES FIJOS (10 1, .. 10 N, ...10 N) EN UN AMBIENTE DONDE REINA UN RUIDO QUE PROVIENE DE UNO O VARIOS EMPLAZAMIENTOS DE ORIGEN ASIMILABLE, VISTO DESDE CUALQUIERA DE LOS CAPTADORES, CON UN MISMO RUIDO QUE PROVIENE DE UNA SOLA FUENTE FIJA (12) EQUIVALENTE, QUE PUEDE SER DIFERENTE DE UN CAPTADOR A OTRO. COMPRENDE MEDIOS (14-26) DE TRATAMIENTO DE LAS SEÑALES INDIVIDUALES QUE PROVIENEN DE LOS DIFERENTES CAPTADORES, QUE DAN A DICHAS SEÑALES LOS DESFASAJES Y QUE FORMAN UNA SUMA PONDERADA DE LAS SEÑALES DESFASADAS, LOS DESFASAJES Y LOS COEFICIENTES DE PONDERACION SON TALES QUE LA CONTRIBUCION DEL RUIDO A LA SUMA PONDERADA SEA APROXIMADAMENTE NULA. ESTE DISPOSITIVO ES EN PARTICULAR UTILIZABLE COMO TERMINAL DE AUDIO CONFERENCIA, LOS CAPTADORES FIJOS SON ENTONCES MICROFONOS Y EL RUIDO QUE PROVIENE DE UNO O VARIOS ALTAVOCES PRESENTA UN ACOPLAMIENTO CON LA SEÑAL ELABORADA A PARTIR DE LOS MICROFONOS Y RESTITUIDA A UN TERMINAL DISTANTE.
ES94400369T 1993-02-23 1994-02-21 Dispositivo multicaptadores de toma de sonido y de tratamiento de la señal asociada. Expired - Lifetime ES2115168T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9302054A FR2702118B1 (fr) 1993-02-23 1993-02-23 Dispositif multicapteurs de prise de son et de traitement du signal associé.

Publications (1)

Publication Number Publication Date
ES2115168T3 true ES2115168T3 (es) 1998-06-16

Family

ID=9444333

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94400369T Expired - Lifetime ES2115168T3 (es) 1993-02-23 1994-02-21 Dispositivo multicaptadores de toma de sonido y de tratamiento de la señal asociada.

Country Status (4)

Country Link
EP (1) EP0613319B1 (es)
DE (1) DE69409856T2 (es)
ES (1) ES2115168T3 (es)
FR (1) FR2702118B1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9501681D0 (sv) * 1995-04-07 1995-05-05 Konftel Ab Teleanordning
CN103389864B (zh) * 2012-05-11 2018-06-22 宏达国际电子股份有限公司 手持装置及其解锁方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1458663A (en) * 1972-12-15 1976-12-15 Ard Anstalt Microphone circuits
FR2410930A1 (fr) * 1977-12-02 1979-06-29 Regamey Bernard Procede de prise de son dans une salle et installation pour la mise en oeuvre de ce procede
FR2509938B1 (fr) * 1981-04-01 1987-11-13 Trt Telecom Radio Electr Agencement de transducteurs acoustiques et utilisation de cet agencement dans un poste telephonique " mains libres "
DE3526591A1 (de) * 1985-07-25 1987-01-29 Schmidt Enzmann Dirk Verfahren zur unterdrueckung der rueckkopplung in elektroakustischen anlagen
US4837829A (en) * 1986-01-15 1989-06-06 Jaffe Acoustics, Inc. Acoustic sound system for a room

Also Published As

Publication number Publication date
DE69409856T2 (de) 1998-11-19
FR2702118B1 (fr) 1995-05-05
EP0613319A1 (fr) 1994-08-31
DE69409856D1 (de) 1998-06-04
EP0613319B1 (fr) 1998-04-29
FR2702118A1 (fr) 1994-09-02

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