Universal self-attaching inductive coupling unit for connecting hearing instrument to peripheral electronic devices
US6157728A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1998 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Nov 16, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R25/556
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An inductive coupling unit which can be easily attached to any hearing instrument with an internal receiving coil to connect the instrument to peripheral electronic devices. The coupling unit includes a head including a head cover, a bobbin disposed inside the head cover, a transmitting coil which is wrapped around the bobbin, and a cylindrical magnet placed in the center of the bobbin. An end of a conductive cable is connected to the transmitting coil and the other end is connected to a plug which makes electrical connection with a peripheral device. The coupling unit is placed on the outer surface of the hearing instrument, and the signals from the peripheral device are induced in the receiving coil of the hearing instrument by the transmitting coil to provide clear, high fidelity transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.