SE8400947L - CONFERENCE TABLES - Google Patents
CONFERENCE TABLESInfo
- 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
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
- 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>
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)
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)
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 |
JPS5392120A (en) * | 1977-01-25 | 1978-08-12 | Nippon Telegr & Teleph Corp <Ntt> | Method of mounting directional microphone |
JPS5392119A (en) * | 1977-01-25 | 1978-08-12 | Nippon Telegr & Teleph Corp <Ntt> | Method of mounting directional microphone |
-
1983
- 1983-02-23 FR FR8302924A patent/FR2541550B1/en not_active Expired
-
1984
- 1984-02-20 GB GB08404401A patent/GB2138283B/en not_active Expired
- 1984-02-21 SE SE8400947A patent/SE8400947L/en not_active Application Discontinuation
- 1984-02-21 DE DE3406239A patent/DE3406239A1/en active Granted
- 1984-02-22 IT IT8453001U patent/IT8453001V0/en unknown
- 1984-02-22 IT IT67168/84A patent/IT1179592B/en active
- 1984-02-23 JP JP59033311A patent/JPS59164000A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
GB2138283B (en) | 1986-08-13 |
DE3406239C2 (en) | 1992-01-02 |
GB2138283A (en) | 1984-10-24 |
IT8467168A0 (en) | 1984-02-22 |
IT8453001V0 (en) | 1984-02-22 |
DE3406239A1 (en) | 1984-08-23 |
IT8467168A1 (en) | 1985-08-22 |
GB8404401D0 (en) | 1984-03-28 |
SE8400947D0 (en) | 1984-02-21 |
FR2541550B1 (en) | 1986-05-02 |
JPS59164000A (en) | 1984-09-17 |
IT1179592B (en) | 1987-09-16 |
FR2541550A1 (en) | 1984-08-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 8400947-1 Effective date: 19911212 |