Antenna system for a hearing aid
US9729979B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 11, 2011 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Oct 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2225/51
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A hearing aid includes a hearing aid assembly having an antenna for emission of an electromagnetic field, a transceiver for wireless data communication, the transceiver interconnected with the antenna, and a housing for accommodation of the antenna, wherein the antenna comprises a first section having a length between at least one sixteenth wavelength and a full wavelength of the electromagnetic field, the antenna being positioned so that current flows in the first section in a direction that corresponds with an ear-to-ear axis of a user when the housing is worn in its operational position by the user, whereby the electromagnetic field emitted by the antenna propagates along a surface of a head of the user with its electrical field substantially orthogonal to the surface of the head of the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.