Sonova Ag

Axel Schlesinger

Matthias Riepenhoff

Alfred Stirnemann

Paul Portmann

Manuel Weibel

Martin Kuster

A filter for a microphone system of a miniature electronic device. The filter includes a sound inlet and a sound outlet, wherein the filter is adapted to be mounted on a surface of a printed circuit board.

Filter for a microphone system, a microphone system, a miniature electronic device and a method of equipping a printed circuit board

A hearing instrument microphone device incudes at least two microphone sound ports (or sound inlets), a pressure difference microphone in communication with at least two of the sound ports and a pressure microphone in communication with at least one of the sound ports, wherein the acoustic centers of the pressure difference microphone and the pressure microphone essentially coincide.

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Stafa, Switzerland

Axel Schlesinger