Electroacoustic transducer with diaphragm securing structure and method
US6535612B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1999 |
| Grant date | Mar 18, 2003 |
| Priority date | — |
| Expiry date | Aug 16, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R7/14
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electroacoustic transducer which has at least one stator member with an operating surface and a suspended emitter diaphragm spaced from the operating surface of the stator member to enable the diaphragm to oscillate in response to an applied signal voltage. The diaphragm has increased stiffness in a direction along the diaphragm and within the emitter section to enable the emitter diaphragm to oscillate without applying tension in the direction of stiffness. A clamp member secures the diaphragm to maintain the diaphragm in a fixed position relative to the stator to minimize distortion. The clamp member is positioned to define at least two isolated emitter sections for enhancing the frequency response of the transducer.A method is also provided for generating audio output from an electroacoustic transducer. A stator member with an operating surface is positioned adjacent to an emitter diaphragm, which is suspended and spaced a sufficient distance from the operating surface of the stator member to enable diaphragm oscillation in an emitter section of the diaphragm in response to an applied signal voltage. The diaphragm is configured with increased stiffness longitudinally along th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.