Miniature transducer
US5960093A · kind A · utility
54Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 30, 1998 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Mar 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2225/025
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A miniature transducer such as for an in-the-canal hearing aid, is disclosed. The transducer comprises a housing formed of a top cup joined to a bottom cup and defines an interior and an exterior. The bottom cup includes a base surface and a plurality of interconnected walls. The transducer further comprises a motor including a coil, a stack and an armature disposed substantially within the bottom cup. The housing includes an opening and a portion of the stack extends outwardly through the opening. Because the stack extends outwardly through the opening, the overall thickness of the transducer is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.