Auditory prosthesis for adaptively filtering selected auditory component by user activation and method for doing same
US6563931B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1992 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Jul 29, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2225/41
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An auditory prosthesis, and method, which is able to adapt better to filter out a selected unwanted portion of the auditory input signal by relying on a human activation, such as activation by the user, who knows by listening when the auditory environment contains only, or mostly only, the selected unwanted portion of the auditory input signal. This person may then activate the adaptive filter of the auditory prosthesis. The adaptive filter then utilizes the then current auditory environment as a noise reference on which to adapt. A transducer is adapted to receive the environmental sound and convert the environmental sound into an electrical input signal. The electrical input signal contains a selected electrical component corresponding to the selected auditory component in the environmental sound. An adaptive filter receives the electrical input signal and provides a filtered signal. The adaptive filter has adaptable filtering characteristics based upon a reference. The adaptive filter is operable in response to activation by the user to adapt the filtering characteristics using the electrical input signal as the reference to determine the filtering characteristics required to fi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.