Dynamic electroacoustic transducer
US8879777B2 · kind B2 · utility
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6Claims
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Assignee
Inventor
Key dates
| Filing date | Aug 8, 2013 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | Aug 8, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R9/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is provided a dynamic electroacoustic transducer comprising a diaphragm and an oscillator coil which is fixed to the diaphragm in an oscillator coil portion. The diaphragm has a first portion within the oscillator coil portion and a second portion between the oscillator coil portion and an edge of the diaphragm. The diaphragm has at least one stiffening portion in the region of the second portion, which is of a different stiffness from the second portion of the diaphragm. The stiffening portion is of a such a configuration that a wobble movement of the diaphragm is substantially compensated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.