Patent · US Active

Method for suppressing feedback and for spectral extension in hearing devices

US8571243B2 · kind B2 · utility

6Cited by

8References

19Claims

0Family size

Assignee

Siemens Audiologische Technik GmbH · DE

Inventors

Ulrich Komagel · Erlangen, DE
Tom Weidner · Nuremberg, DE

Key dates

Filing date	May 3, 2007
Grant date	Oct 29, 2013
Priority date	—
Expiry date	Jul 26, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2430/03
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Feedback whistle in hearing devices is intended to be able to be suppressed without loss of output of the useful signal. To this end, it is provided to establish or predetermine a frequency range which is susceptible to feedback. From an input signal which has a spectral component in the frequency range susceptible to feedback, a predeterminable component is substituted with a synthetic signal. Mixing-in a synthetic signal is also possibly used to widen the spectrum of an input signal, which is limited.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.