BE715074A - - Google Patents
Info
- Publication number
- BE715074A BE715074A BE715074DA BE715074A BE 715074 A BE715074 A BE 715074A BE 715074D A BE715074D A BE 715074DA BE 715074 A BE715074 A BE 715074A
- Authority
- BE
- Belgium
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
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
- H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63892667A | 1967-05-16 | 1967-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE715074A true BE715074A (en) | 1968-11-13 |
Family
ID=24562014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE715074D BE715074A (en) | 1967-05-16 | 1968-05-13 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3573397A (en) |
| BE (1) | BE715074A (en) |
| CH (1) | CH490778A (en) |
| DE (1) | DE1762264A1 (en) |
| FR (1) | FR1565243A (en) |
| GB (1) | GB1234275A (en) |
| LU (1) | LU56088A1 (en) |
| NL (1) | NL6806732A (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7611218A (en) * | 1976-10-11 | 1978-04-13 | Microtel Bv | ELECTRO-ACOUSTIC CONVERSION DEVICE. |
| US4373781A (en) * | 1979-02-12 | 1983-02-15 | Gte Laboratories Incorporated | Acoustic to optical pulse code modulating transducer |
| NL8900613A (en) * | 1989-03-14 | 1990-10-01 | Microtel Bv | ACOUSTIC TRANSDUCER. |
| NL1004669C2 (en) * | 1996-12-02 | 1998-06-03 | Microtronic Nederland Bv | Transducer. |
| NL1004877C2 (en) * | 1996-12-23 | 1998-08-03 | Microtronic Nederland Bv | Electroacoustic transducer. |
| US6385327B1 (en) * | 1998-06-16 | 2002-05-07 | U.S. Philips Corporation | Device having two coaxially disposed bodies which are movable relative to one another along a translation axis |
| US7706561B2 (en) * | 1999-04-06 | 2010-04-27 | Sonion Nederland B.V. | Electroacoustic transducer with a diaphragm and method for fixing a diaphragm in such transducer |
| NL1011733C1 (en) * | 1999-04-06 | 2000-10-09 | Microtronic Nederland Bv | Electroacoustic transducer with a membrane and method for mounting a membrane in such a transducer. |
| US6658134B1 (en) | 1999-08-16 | 2003-12-02 | Sonionmicrotronic Nederland B.V. | Shock improvement for an electroacoustic transducer |
| US6739425B1 (en) * | 2000-07-18 | 2004-05-25 | The United States Of America As Represented By The Secretary Of The Air Force | Evacuated enclosure mounted acoustic actuator and passive attenuator |
| US7065224B2 (en) * | 2001-09-28 | 2006-06-20 | Sonionmicrotronic Nederland B.V. | Microphone for a hearing aid or listening device with improved internal damping and foreign material protection |
| US7415121B2 (en) * | 2004-10-29 | 2008-08-19 | Sonion Nederland B.V. | Microphone with internal damping |
| US7860265B2 (en) * | 2007-07-30 | 2010-12-28 | John Joseph Gaudreault | Diaphragm for full range boxless rotary loudspeaker driver |
| DE102013221752A1 (en) | 2013-10-25 | 2015-04-30 | Kaetel Systems Gmbh | EARPHONES AND METHOD FOR PRODUCING AN EARPHOR |
| WO2017018074A1 (en) * | 2015-07-29 | 2017-02-02 | ソニー株式会社 | Acoustic transducer and sound output device |
| US10959024B2 (en) * | 2018-09-27 | 2021-03-23 | Apple Inc. | Planar magnetic driver having trace-free radiating region |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1072477A (en) * | 1910-05-18 | 1913-09-09 | Victor Talking Machine Co | Acoustical instrument. |
| US2927977A (en) * | 1958-11-17 | 1960-03-08 | Sonotone Corp | Acoustic signal transducers |
| US3251954A (en) * | 1961-10-27 | 1966-05-17 | Industrial Res Prod Inc | Electroacoustic transducer |
-
1967
- 1967-05-16 US US638926A patent/US3573397A/en not_active Expired - Lifetime
-
1968
- 1968-05-10 CH CH699768A patent/CH490778A/en not_active IP Right Cessation
- 1968-05-11 NL NL6806732A patent/NL6806732A/xx unknown
- 1968-05-11 DE DE19681762264 patent/DE1762264A1/en active Pending
- 1968-05-13 BE BE715074D patent/BE715074A/xx unknown
- 1968-05-13 GB GB1234275D patent/GB1234275A/en not_active Expired
- 1968-05-15 LU LU56088D patent/LU56088A1/xx unknown
- 1968-05-16 FR FR1565243D patent/FR1565243A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH490778A (en) | 1970-05-15 |
| LU56088A1 (en) | 1969-02-10 |
| GB1234275A (en) | 1971-06-03 |
| US3573397A (en) | 1971-04-06 |
| FR1565243A (en) | 1969-04-25 |
| DE1762264A1 (en) | 1970-04-16 |
| NL6806732A (en) | 1968-11-18 |
| DE1762264B2 (en) | 1970-10-29 |