SE8400947L - CONFERENCE TABLES - Google Patents

CONFERENCE TABLES

Info

Publication number
SE8400947L
SE8400947L SE8400947A SE8400947A SE8400947L SE 8400947 L SE8400947 L SE 8400947L SE 8400947 A SE8400947 A SE 8400947A SE 8400947 A SE8400947 A SE 8400947A SE 8400947 L SE8400947 L SE 8400947L
Authority
SE
Sweden
Prior art keywords
microphones
grating
speakers
disposed
speaker
Prior art date
Application number
SE8400947A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8400947D0 (en
Inventor
J-G Aincy
J-M Hennet
J Sourgens
Original Assignee
Cit Alcatel
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 Cit Alcatel filed Critical Cit Alcatel
Publication of SE8400947D0 publication Critical patent/SE8400947D0/en
Publication of SE8400947L publication Critical patent/SE8400947L/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0066—Workstations
    • A47B2200/0079—Conference or video conference table

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Stereophonic Arrangements (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Telephonic Communication Services (AREA)

Abstract

Directional, preferably differential, microphones (11) at the back of the V-shape table point to respective speaker positions disposed at the front of the table substantially in line with the microphones (11). The microphones serve as selective sound pick-ups for receiving each speaker's speech and also for determining which one of the various possible speakers is actually speaking. A grating (26), e.g. of metal and with a fabric covering (25), and having longitudinal and cross bars (28,27), is disposed a short distance in front of the microphones between the microphones and the speaker positions. The grating provides a useful degree of "blinkering" to make the microphones relatively less sensitive to off-axis speakers than they would be without the grating. <IMAGE>
SE8400947A 1983-02-23 1984-02-21 CONFERENCE TABLES SE8400947L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8302924A FR2541550B1 (en) 1983-02-23 1983-02-23 TELECONFERENCE TABLE

Publications (2)

Publication Number Publication Date
SE8400947D0 SE8400947D0 (en) 1984-02-21
SE8400947L true SE8400947L (en) 1984-08-24

Family

ID=9286185

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8400947A SE8400947L (en) 1983-02-23 1984-02-21 CONFERENCE TABLES

Country Status (6)

Country Link
JP (1) JPS59164000A (en)
DE (1) DE3406239A1 (en)
FR (1) FR2541550B1 (en)
GB (1) GB2138283B (en)
IT (2) IT8453001V0 (en)
SE (1) SE8400947L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3438650A1 (en) * 1984-10-22 1986-04-24 August Fröscher GmbH & Co KG, 7141 Steinheim TABLE, IN PARTICULAR REFERENCE TABLE

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE97927C (en) *
US2563648A (en) * 1948-05-25 1951-08-07 Jr John Hays Hammond Microphone system having automatic volume level sensitivity
GB1107604A (en) * 1964-06-02 1968-03-27 Ransom Wesley Davenport Method of and apparatus for recording and reproducing sound
US3550720A (en) * 1968-09-24 1970-12-29 Us Army Multiple wind screen noise attenuation system
DE2523864A1 (en) * 1975-05-30 1976-12-16 Heinrich Peiker Electroacoustical communication system for conference etc. - positions provided with microphone and loudspeaker units for simplex or duplex operation
US3992586A (en) * 1975-11-13 1976-11-16 Jaffe Acoustics, Inc. Boardroom sound reinforcement system
FR2358800A1 (en) * 1976-07-16 1978-02-10 Pontet Robert Sound pick=up for telephone conference - has omnidirectional microphone at focal point of parabolic recess of plaster or fibre glass block
JPS5392119A (en) * 1977-01-25 1978-08-12 Nippon Telegr & Teleph Corp <Ntt> Method of mounting directional microphone
JPS5392120A (en) * 1977-01-25 1978-08-12 Nippon Telegr & Teleph Corp <Ntt> Method of mounting directional microphone

Also Published As

Publication number Publication date
GB2138283A (en) 1984-10-24
FR2541550B1 (en) 1986-05-02
GB8404401D0 (en) 1984-03-28
DE3406239C2 (en) 1992-01-02
FR2541550A1 (en) 1984-08-24
SE8400947D0 (en) 1984-02-21
JPS59164000A (en) 1984-09-17
GB2138283B (en) 1986-08-13
IT1179592B (en) 1987-09-16
IT8467168A1 (en) 1985-08-22
IT8453001V0 (en) 1984-02-22
IT8467168A0 (en) 1984-02-22
DE3406239A1 (en) 1984-08-23

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Legal Events

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NAV Patent application has lapsed

Ref document number: 8400947-1

Effective date: 19911212