SE503180C2 - Elektroakustisk omvandlare - Google Patents
Elektroakustisk omvandlareInfo
- Publication number
- SE503180C2 SE503180C2 SE9402871A SE9402871A SE503180C2 SE 503180 C2 SE503180 C2 SE 503180C2 SE 9402871 A SE9402871 A SE 9402871A SE 9402871 A SE9402871 A SE 9402871A SE 503180 C2 SE503180 C2 SE 503180C2
- Authority
- SE
- Sweden
- Prior art keywords
- sound
- elongate
- membranes
- electroacoustic transducer
- magnetic elements
- 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
- H04R7/08—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers separated by air or other fluid
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Transducers For Ultrasonic Waves (AREA)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9402871A SE503180C2 (sv) | 1994-08-29 | 1994-08-29 | Elektroakustisk omvandlare |
CA002198734A CA2198734A1 (en) | 1994-08-29 | 1995-08-29 | Electro-acoustic transducer |
JP8508668A JPH10511234A (ja) | 1994-08-29 | 1995-08-29 | 電気音響変換器 |
EP95930770A EP0777952A1 (en) | 1994-08-29 | 1995-08-29 | Electro-acoustic transducer |
AU34028/95A AU709172B2 (en) | 1994-08-29 | 1995-08-29 | Electro-acoustic transducer |
US08/793,175 US5912863A (en) | 1994-08-29 | 1995-08-29 | Electro-acoustic transducer |
PCT/SE1995/000971 WO1996007294A1 (en) | 1994-08-29 | 1995-08-29 | Electro-acoustic transducer |
FI970838A FI970838A (fi) | 1994-08-29 | 1997-02-27 | Sähköakustinen muunnin |
NO970883A NO970883L (no) | 1994-08-29 | 1997-02-27 | Elektroakustisk transduser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9402871A SE503180C2 (sv) | 1994-08-29 | 1994-08-29 | Elektroakustisk omvandlare |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9402871D0 SE9402871D0 (sv) | 1994-08-29 |
SE9402871L SE9402871L (sv) | 1996-03-01 |
SE503180C2 true SE503180C2 (sv) | 1996-04-15 |
Family
ID=20395054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9402871A SE503180C2 (sv) | 1994-08-29 | 1994-08-29 | Elektroakustisk omvandlare |
Country Status (9)
Country | Link |
---|---|
US (1) | US5912863A (fi) |
EP (1) | EP0777952A1 (fi) |
JP (1) | JPH10511234A (fi) |
AU (1) | AU709172B2 (fi) |
CA (1) | CA2198734A1 (fi) |
FI (1) | FI970838A (fi) |
NO (1) | NO970883L (fi) |
SE (1) | SE503180C2 (fi) |
WO (1) | WO1996007294A1 (fi) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19757099A1 (de) * | 1997-12-20 | 1999-06-24 | Nokia Deutschland Gmbh | Kontaktierung für eine Schallwiedergabeanordnung nach dem Biegewellenprinzip |
SE0001461L (sv) * | 2000-04-18 | 2001-10-19 | Erik Liljehag | Elektroakustisk omvandlare |
US8116512B2 (en) | 2006-09-14 | 2012-02-14 | Bohlender Graebener Corporation | Planar speaker driver |
US8031901B2 (en) * | 2006-09-14 | 2011-10-04 | Bohlender Graebener Corporation | Planar speaker driver |
US8000170B2 (en) | 2008-11-20 | 2011-08-16 | Analog Devices, Inc. | Systems and methods for acoustic beamforming using discrete or continuous speaker arrays |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3636278A (en) * | 1969-02-19 | 1972-01-18 | Heil Scient Lab Inc | Acoustic transducer with a diaphragm forming a plurality of adjacent narrow air spaces open only at one side with the open sides of adjacent air spaces alternatingly facing in opposite directions |
GB1522710A (en) * | 1974-11-25 | 1978-08-23 | Heil O | Low frequency electro-acoustic transducer assembly |
US4703510A (en) * | 1982-06-17 | 1987-10-27 | Larson David A | Electro-acoustic transducer with diaphragm and blank therefor |
US4837838A (en) * | 1987-03-30 | 1989-06-06 | Eminent Technology, Inc. | Electromagnetic transducer of improved efficiency |
US4792978A (en) * | 1987-08-28 | 1988-12-20 | Marquiss Stanley L | Planar loudspeaker system |
US5003610A (en) * | 1988-04-14 | 1991-03-26 | Fostex Corporation | Whole surface driven speaker |
-
1994
- 1994-08-29 SE SE9402871A patent/SE503180C2/sv not_active IP Right Cessation
-
1995
- 1995-08-29 WO PCT/SE1995/000971 patent/WO1996007294A1/en not_active Application Discontinuation
- 1995-08-29 US US08/793,175 patent/US5912863A/en not_active Expired - Fee Related
- 1995-08-29 JP JP8508668A patent/JPH10511234A/ja active Pending
- 1995-08-29 AU AU34028/95A patent/AU709172B2/en not_active Ceased
- 1995-08-29 CA CA002198734A patent/CA2198734A1/en not_active Abandoned
- 1995-08-29 EP EP95930770A patent/EP0777952A1/en not_active Withdrawn
-
1997
- 1997-02-27 NO NO970883A patent/NO970883L/no not_active Application Discontinuation
- 1997-02-27 FI FI970838A patent/FI970838A/fi unknown
Also Published As
Publication number | Publication date |
---|---|
NO970883L (no) | 1997-04-16 |
WO1996007294A1 (en) | 1996-03-07 |
CA2198734A1 (en) | 1996-03-07 |
AU3402895A (en) | 1996-03-22 |
NO970883D0 (no) | 1997-02-27 |
FI970838A0 (fi) | 1997-02-27 |
SE9402871L (sv) | 1996-03-01 |
AU709172B2 (en) | 1999-08-26 |
FI970838A (fi) | 1997-02-27 |
US5912863A (en) | 1999-06-15 |
JPH10511234A (ja) | 1998-10-27 |
EP0777952A1 (en) | 1997-06-11 |
SE9402871D0 (sv) | 1994-08-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
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