Patent · US Expired

Hearing aid with a directional microphone characteristic and method for producing same

US6421448B1 · kind B1 · utility

28Cited by

1References

16Claims

0Family size

Assignee

Siemens Audiologische Technik GmbH · DE

Inventors

Georg-Erwin Arndt · Erlangen, DE
Anton Gebert · Kleinsendelbach, DE
Hartmut Ritter · Fairview Avenue, DE

Key dates

Filing date	Apr 12, 2000
Grant date	Jul 16, 2002
Priority date	—
Expiry date	Apr 12, 2020

Classification

Technology area (CPC H)Electricity
CPC primaryH04R29/006
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

In a method for producing a directional microphone characteristic and hearing aid device having a directional microphone characteristic, high-pass filters following two omnidirectional microphones are matched as to their limit frequencies for amplitude response and/or phase response of the two microphones. The limit frequency of the high-pass filter following one microphone is matched to the limit frequency of the other microphone.

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