EP0926924A3 - Haut-parleur - Google Patents
Haut-parleur Download PDFInfo
- Publication number
- EP0926924A3 EP0926924A3 EP98401003A EP98401003A EP0926924A3 EP 0926924 A3 EP0926924 A3 EP 0926924A3 EP 98401003 A EP98401003 A EP 98401003A EP 98401003 A EP98401003 A EP 98401003A EP 0926924 A3 EP0926924 A3 EP 0926924A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- section
- speaker
- base section
- electrodes
- driving electrodes
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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
- H04R7/12—Non-planar diaphragms or cones
- H04R7/127—Non-planar diaphragms or cones dome-shaped
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
- H04R2307/023—Diaphragms comprising ceramic-like materials, e.g. pure ceramic, glass, boride, nitride, carbide, mica and carbon materials
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP09368133A JP3134835B2 (ja) | 1997-12-27 | 1997-12-27 | スピーカ |
JP36813397 | 1997-12-27 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0926924A2 EP0926924A2 (fr) | 1999-06-30 |
EP0926924A3 true EP0926924A3 (fr) | 2005-04-13 |
EP0926924B1 EP0926924B1 (fr) | 2008-08-20 |
Family
ID=18491050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98401003A Expired - Lifetime EP0926924B1 (fr) | 1997-12-27 | 1998-04-24 | Haut-parleur |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0926924B1 (fr) |
JP (1) | JP3134835B2 (fr) |
KR (1) | KR100320300B1 (fr) |
CN (1) | CN1132499C (fr) |
DE (1) | DE69839907D1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100906335B1 (ko) * | 2007-08-07 | 2009-07-06 | 티.비텔레콤(주) | 디지털 마이크의 베이스 부재 제조 방법 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4284921A (en) * | 1977-11-17 | 1981-08-18 | Thomson-Csf | Polymeric piezoelectric transducer with thermoformed protuberances |
US4440983A (en) * | 1980-01-08 | 1984-04-03 | Thomson-Csf | Electro-acoustic transducer with active dome |
US4550797A (en) * | 1983-01-17 | 1985-11-05 | Victor Company Of Japan | Loudspeaker diaphragm made of a molded, sintered ceramic body |
EP0782370A2 (fr) * | 1995-12-14 | 1997-07-02 | Murata Manufacturing Co., Ltd. | Haut-parleur pour rayonner des ondes sonores dans toutes les directions rélativement à une surface support du haut-parleur |
EP0810811A2 (fr) * | 1996-05-31 | 1997-12-03 | Murata Manufacturing Co., Ltd. | Haut-parleur |
-
1997
- 1997-12-27 JP JP09368133A patent/JP3134835B2/ja not_active Expired - Fee Related
-
1998
- 1998-04-22 KR KR1019980014330A patent/KR100320300B1/ko not_active IP Right Cessation
- 1998-04-24 EP EP98401003A patent/EP0926924B1/fr not_active Expired - Lifetime
- 1998-04-24 CN CN98107352A patent/CN1132499C/zh not_active Expired - Lifetime
- 1998-04-24 DE DE69839907T patent/DE69839907D1/de not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4284921A (en) * | 1977-11-17 | 1981-08-18 | Thomson-Csf | Polymeric piezoelectric transducer with thermoformed protuberances |
US4440983A (en) * | 1980-01-08 | 1984-04-03 | Thomson-Csf | Electro-acoustic transducer with active dome |
US4550797A (en) * | 1983-01-17 | 1985-11-05 | Victor Company Of Japan | Loudspeaker diaphragm made of a molded, sintered ceramic body |
EP0782370A2 (fr) * | 1995-12-14 | 1997-07-02 | Murata Manufacturing Co., Ltd. | Haut-parleur pour rayonner des ondes sonores dans toutes les directions rélativement à une surface support du haut-parleur |
EP0810811A2 (fr) * | 1996-05-31 | 1997-12-03 | Murata Manufacturing Co., Ltd. | Haut-parleur |
Also Published As
Publication number | Publication date |
---|---|
KR19990062395A (ko) | 1999-07-26 |
JPH11196490A (ja) | 1999-07-21 |
EP0926924B1 (fr) | 2008-08-20 |
JP3134835B2 (ja) | 2001-02-13 |
KR100320300B1 (ko) | 2002-02-19 |
CN1222048A (zh) | 1999-07-07 |
DE69839907D1 (de) | 2008-10-02 |
CN1132499C (zh) | 2003-12-24 |
EP0926924A2 (fr) | 1999-06-30 |
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Legal Events
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