Method of programming a hearing aid by a programming device
US7639822B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 2005 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Nov 1, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2225/33
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A battery-powered hearing aid (1) is programmed via a programming device (2), the hearing aid (1) having a battery (11) and a line connection (3, 4) for connecting the battery (11) to the programming device (2). The programming device uses a variable voltage source (5) and an input comparator (6) with a first and a second input terminal and an output terminal to output a variable voltage to one input of the input comparator (6) and determining the voltage of the hearing aid battery (11) by using the second input of the input comparator (6) of the programming device (2). By ramping the output of the variable voltage source (5) used as a reference, the voltage of the battery (11) can be determined with great accuracy using existing hearing aid programming circuitry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.