Directional microphone assembly

Details Directional microphone assembly Directional microphone assembly

2007-10-23

2007-10-23

Ni, Suhan (Department: 2615)

Electrical audio signal processing systems and devices

Hearing aids, electrical

Directional

C381S387000, C381S369000

Reexamination Certificate

active

10889420

ABSTRACT:
A directional microphone assembly for a hearing aid is disclosed. The hearing aid has one or more microphone cartridge(s), and first and second sound passages. Inlets to the sound passages, or the sound passages themselves, are spaced apart such that the shortest distance between them is less than or approximately equal to the length of the microphone cartridge(s). A sound duct and at least one surface of a microphone cartridge may form each sound passage, where the sound duct is mounted with the microphone cartridge. Alternatively, each sound duct may be formed as an integral part of a microphone cartridge.

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