Multi-coil coupling system for hearing aid applications
US7522740B2 · kind B2 · utility
60Cited by
19References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2006 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Jan 7, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2225/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hearing improvement device using a multi-coil coupling system and methods for operating such a device are disclosed. An embodiment of the present invention may use an array microphone to provide highly directional reception. The received audio signal may be filtered, amplified, and converted into a magnetic field for coupling to the 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.