Multi-coil coupling system for hearing aid applications
US7206426B1 · kind B1 · utility
45Cited by
12References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2004 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Oct 29, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R25/558
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a hearing improvement device using a multi-coil coupling system and methods for operating such a device. In an embodiment according to the present invention an array microphone may be used to provide highly directional reception. The received audio signal may be filtered, amplified, and converted into a magnetic field for coupling to a telecoil in a conventional hearing aid. Multiple transmit inductors may be used to effectively couple to both in-the-ear and behind-the-ear type hearing aids, and an additional embodiment is disclosed which may be used with an earphone, for users not requiring a hearing aid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.