DE69402322D1 - Schallaufnahme-und-wiedergabegerät, und seine anwendung für audiokonferenzen - Google Patents

Schallaufnahme-und-wiedergabegerät, und seine anwendung für audiokonferenzen

Info

Publication number
DE69402322D1
DE69402322D1 DE69402322T DE69402322T DE69402322D1 DE 69402322 D1 DE69402322 D1 DE 69402322D1 DE 69402322 T DE69402322 T DE 69402322T DE 69402322 T DE69402322 T DE 69402322T DE 69402322 D1 DE69402322 D1 DE 69402322D1
Authority
DE
Germany
Prior art keywords
application
playing device
sound recording
audio conferences
conferences
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
DE69402322T
Other languages
English (en)
Other versions
DE69402322T2 (de
Inventor
Philippe Parment
Frederic Zurcher
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.)
PRESCOM SARL
Original Assignee
PRESCOM SARL
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 PRESCOM SARL filed Critical PRESCOM SARL
Application granted granted Critical
Publication of DE69402322D1 publication Critical patent/DE69402322D1/de
Publication of DE69402322T2 publication Critical patent/DE69402322T2/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
    • H04R27/00—Public address systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/342—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for microphones
    • 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)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
DE69402322T 1993-03-19 1994-02-18 Schallaufnahme-und-wiedergabegerät, und seine anwendung für audiokonferenzen Expired - Fee Related DE69402322T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9303216A FR2702918B1 (fr) 1993-03-19 1993-03-19 Appareil de prise et de restitution de son, et son application à l'audio-conférence.
PCT/FR1994/000188 WO1994022277A1 (fr) 1993-03-19 1994-02-18 Appareil de prise et de restitution de son, et son application a l'audio-conference

Publications (2)

Publication Number Publication Date
DE69402322D1 true DE69402322D1 (de) 1997-04-30
DE69402322T2 DE69402322T2 (de) 1997-10-23

Family

ID=9445174

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69402322T Expired - Fee Related DE69402322T2 (de) 1993-03-19 1994-02-18 Schallaufnahme-und-wiedergabegerät, und seine anwendung für audiokonferenzen

Country Status (6)

Country Link
EP (1) EP0710427B1 (de)
AU (1) AU6111194A (de)
DE (1) DE69402322T2 (de)
ES (1) ES2100052T3 (de)
FR (1) FR2702918B1 (de)
WO (1) WO1994022277A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2743685B1 (fr) * 1996-01-17 1998-02-20 Prescom Sarl Appareils de prise de son et appareils de prise de son et de restitution de son
CA2321670C (en) * 1998-03-09 2005-07-12 Brian Turnbull Radial pickup microphone enclosure
DE102013219636A1 (de) * 2013-09-27 2015-04-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und verfahren zur überlagerung eines schallsignals

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2358800A1 (fr) * 1976-07-16 1978-02-10 Pontet Robert Dispositif de prise de son
CA1050154A (en) * 1977-01-14 1979-03-06 Conrad D. Lafrance Telephone conferencing apparatus
FR2617660B1 (fr) * 1987-06-30 1990-06-08 Larvor Rene Dispositif de prise et de restitution du son, notamment pour audio-conferences
FR2670351B1 (fr) * 1990-12-05 1997-04-30 France Etat Appareil de prise et de restitution du son.
FR2682251B1 (fr) * 1991-10-02 1997-04-25 Prescom Sarl Procede et systeme de prise de son, et appareil de prise et de restitution de son.

Also Published As

Publication number Publication date
DE69402322T2 (de) 1997-10-23
WO1994022277A1 (fr) 1994-09-29
ES2100052T3 (es) 1997-06-01
EP0710427B1 (de) 1997-03-26
FR2702918B1 (fr) 1995-05-12
FR2702918A1 (fr) 1994-09-23
AU6111194A (en) 1994-10-11
EP0710427A1 (de) 1996-05-08

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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