NO970883L - Elektroakustisk transduser - Google Patents
Elektroakustisk transduserInfo
- Publication number
- NO970883L NO970883L NO970883A NO970883A NO970883L NO 970883 L NO970883 L NO 970883L NO 970883 A NO970883 A NO 970883A NO 970883 A NO970883 A NO 970883A NO 970883 L NO970883 L NO 970883L
- Authority
- NO
- Norway
- Prior art keywords
- membranes
- elongated
- electroacoustic transducer
- stated
- magnetic elements
- Prior art date
Links
- 239000012528 membrane Substances 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9402871A SE503180C2 (sv) | 1994-08-29 | 1994-08-29 | Elektroakustisk omvandlare |
| PCT/SE1995/000971 WO1996007294A1 (en) | 1994-08-29 | 1995-08-29 | Electro-acoustic transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO970883D0 NO970883D0 (no) | 1997-02-27 |
| NO970883L true NO970883L (no) | 1997-04-16 |
Family
ID=20395054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO970883A NO970883L (no) | 1994-08-29 | 1997-02-27 | Elektroakustisk transduser |
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) | FI970838A0 (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 |
| US8031901B2 (en) * | 2006-09-14 | 2011-10-04 | Bohlender Graebener Corporation | Planar speaker driver |
| US8116512B2 (en) | 2006-09-14 | 2012-02-14 | 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 |
| CA1067201A (en) * | 1974-11-25 | 1979-11-27 | Oskar Heil | Low frequency electro-acoustic transducer |
| 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 CA CA002198734A patent/CA2198734A1/en not_active Abandoned
- 1995-08-29 US US08/793,175 patent/US5912863A/en not_active Expired - Fee Related
- 1995-08-29 EP EP95930770A patent/EP0777952A1/en not_active Withdrawn
- 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 WO PCT/SE1995/000971 patent/WO1996007294A1/en not_active Application Discontinuation
-
1997
- 1997-02-27 FI FI970838A patent/FI970838A0/fi unknown
- 1997-02-27 NO NO970883A patent/NO970883L/no not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| SE9402871D0 (sv) | 1994-08-29 |
| SE503180C2 (sv) | 1996-04-15 |
| WO1996007294A1 (en) | 1996-03-07 |
| US5912863A (en) | 1999-06-15 |
| AU709172B2 (en) | 1999-08-26 |
| FI970838A (fi) | 1997-02-27 |
| JPH10511234A (ja) | 1998-10-27 |
| NO970883D0 (no) | 1997-02-27 |
| CA2198734A1 (en) | 1996-03-07 |
| FI970838A0 (fi) | 1997-02-27 |
| SE9402871L (sv) | 1996-03-01 |
| AU3402895A (en) | 1996-03-22 |
| EP0777952A1 (en) | 1997-06-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FC2A | Withdrawal, rejection or dismissal of laid open patent application |