Acoustic transducer having reduced thickness
US7190803B2 · kind B2 · utility
90Cited by
15References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 9, 2002 |
| Grant date | Mar 13, 2007 |
| Priority date | — |
| Expiry date | Mar 4, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R25/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A transducer for a hearing aid includes a housing, a relatively thin membrane having a free end suspended in the housing for vibration in response to a motor. The motor has a coil and a magnet assembly, the coil being mounted in the housing beneath the membrane; the magnet assembly being mounted in the housing coaxially with the coil and to one edge of the membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.