Patent · US Expired

Hearing aid with an oscillation detector, and method for detecting feedback in a hearing aid

US7024011B1 · kind B1 · utility

9Cited by

6References

21Claims

0Family size

Assignee

Siemens Audiologische Technik GmbH · DE

Inventors

Volkmar Hamacher · Hannover, DE
Georg-Erwin Arndt · Erlangen, DE
Tom Weidner · Nuremberg, DE

Key dates

Filing date	May 10, 2000
Grant date	Apr 4, 2006
Priority date	—
Expiry date	May 10, 2020

Classification

Technology area (CPC H)Electricity
CPC primaryH04R25/453
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

In a hearing aid having an oscillation detector and a method for establishing the presence of oscillations in a hearing aid, sinusoidal input signals of the microphone can be detected, and so oscillations that are present can also be detected. To this end, the number of digitized sample values in consecutive periods of the input signal is determined, and a long-term average value NL and a short-term average value NK are formed from these numbers. When NL and NK are essentially identical, the presence of oscillations is detected.

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