WO2005072008A3 - Transducteur electroacoustique et enceinte le comportant - Google Patents
Transducteur electroacoustique et enceinte le comportant Download PDFInfo
- Publication number
- WO2005072008A3 WO2005072008A3 PCT/IB2005/000168 IB2005000168W WO2005072008A3 WO 2005072008 A3 WO2005072008 A3 WO 2005072008A3 IB 2005000168 W IB2005000168 W IB 2005000168W WO 2005072008 A3 WO2005072008 A3 WO 2005072008A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piece
- conductor
- polarised
- electrical signal
- magnetic material
- 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0400685A FR2865608B1 (fr) | 2004-01-23 | 2004-01-23 | Transducteur electoacoustique et enceinte le comportant |
FR0400685 | 2004-01-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005072008A2 WO2005072008A2 (fr) | 2005-08-04 |
WO2005072008A3 true WO2005072008A3 (fr) | 2005-10-20 |
Family
ID=34717404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2005/000168 WO2005072008A2 (fr) | 2004-01-23 | 2005-01-24 | Transducteur electroacoustique et enceinte le comportant |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2865608B1 (fr) |
WO (1) | WO2005072008A2 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2500718A (en) * | 2012-03-30 | 2013-10-02 | Paul Raymond Knight | Edge- or circumferentially driven planar loudspeaker with Neodymium magnet system |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2517727A (en) * | 1948-12-02 | 1950-08-08 | Rola Company Inc | Permanent magnet structure for electrodynamic loud-speakers |
GB1276013A (en) * | 1968-06-03 | 1972-06-01 | Takashi Sagawa | Vibrating device for radiating sound |
JPS5585195A (en) * | 1978-12-21 | 1980-06-26 | Mitsubishi Electric Corp | Speaker |
US4243839A (en) * | 1977-12-14 | 1981-01-06 | Matsushita Electric Industrial Co., Ltd. | Transducer with flux sensing coils |
FR2583605A1 (fr) * | 1985-06-14 | 1986-12-19 | Zamora Castro | Haut-parleur a deux aimants et membrane a suspension centrale |
US5214710A (en) * | 1990-07-07 | 1993-05-25 | Mercedes-Benz Ag | Permanent magnet system with associated coil arrangement |
WO1999060819A1 (fr) * | 1998-05-15 | 1999-11-25 | Harman Audio Electronic Systems Gmbh | Dispositif de reproduction acoustique fonctionnant selon le principe des ondes de flexion |
-
2004
- 2004-01-23 FR FR0400685A patent/FR2865608B1/fr not_active Expired - Fee Related
-
2005
- 2005-01-24 WO PCT/IB2005/000168 patent/WO2005072008A2/fr active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2517727A (en) * | 1948-12-02 | 1950-08-08 | Rola Company Inc | Permanent magnet structure for electrodynamic loud-speakers |
GB1276013A (en) * | 1968-06-03 | 1972-06-01 | Takashi Sagawa | Vibrating device for radiating sound |
US4243839A (en) * | 1977-12-14 | 1981-01-06 | Matsushita Electric Industrial Co., Ltd. | Transducer with flux sensing coils |
JPS5585195A (en) * | 1978-12-21 | 1980-06-26 | Mitsubishi Electric Corp | Speaker |
FR2583605A1 (fr) * | 1985-06-14 | 1986-12-19 | Zamora Castro | Haut-parleur a deux aimants et membrane a suspension centrale |
US5214710A (en) * | 1990-07-07 | 1993-05-25 | Mercedes-Benz Ag | Permanent magnet system with associated coil arrangement |
WO1999060819A1 (fr) * | 1998-05-15 | 1999-11-25 | Harman Audio Electronic Systems Gmbh | Dispositif de reproduction acoustique fonctionnant selon le principe des ondes de flexion |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 0041, no. 33 (E - 026) 18 September 1980 (1980-09-18) * |
Also Published As
Publication number | Publication date |
---|---|
WO2005072008A2 (fr) | 2005-08-04 |
FR2865608A1 (fr) | 2005-07-29 |
FR2865608B1 (fr) | 2007-02-09 |
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