Patent · US Expired

Microphone

US7079663B1 · kind B1 · utility

1Cited by

5References

13Claims

0Family size

Assignee

Sennheiser electronic GmbH & Co. KG · DE

Inventors

Heinz Epping · Hildesheim, DE
Manfred Bleichwehl · Hannover, DE
Artur Seehafer · Wendeburg, DE

Key dates

Filing date	Oct 16, 1999
Grant date	Jul 18, 2006
Priority date	—
Expiry date	Oct 16, 2019

Classification

Technology area (CPC H)Electricity
CPC primaryH04R1/38
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A microphone comprising a diaphragm which has a front diaphragm surface on which sound waves impinge and a rear diaphragm surface which is at least partially acoustically separated from the front diaphragm surface, and a sound inlet, through which sound waves can go to the rear diaphragm surface. In order to improve a strongly frequency-dependent frequency response characteristic in respect of the directional effect of the microphone, the microphone includes at least one damping element and the slot-shaped sound inlet forms substantially an acoustic inductance so that at least a part of the sound waves to be picked up is passed with a delay to the rear diaphragm surface.

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