Hearing aid to be worn at the head
US5708720A · kind A · utility
62Cited by
10References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 28, 1996 |
| Grant date | Jan 13, 1998 |
| Priority date | — |
| Expiry date | Oct 28, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2225/49
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In order to improve the immunity of a hearing aid to interference caused by the penetration of high-frequency electromagnetic waves via seams and openings of the hearing aid housing, the housing is composed of at least two electrically conductive parts that are joined in electrically conductive fashion via a high-frequency seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.