Microphone unit for an action camera

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10277970
APP PUB NO 20180070161A1
SERIAL NO

15693617

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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There is provided a microphone unit (1) for an action camera, comprising a microphone capsule (10) having at least one speaking hole (11), and a water-tight enclosure (20) which water-tightly encloses the microphone capsule (10). The water-tight enclosure (20) has a water-impermeable passive diaphragm (25) which can oscillate freely and which allows incoming sound to pass substantially undisturbed. The microphone unit has a head (30) having a plurality of holes (31), the head (30) being provided outside the enclosure (20) in front of the passive diaphragm (25). The microphone unit further has a foam portion (40) which is provided in front of the head (30) and has an open-pore foam. The foam portion (40) is in contact with the head (30). The passive diaphragm (25) has an oscillatable minimum area of 20 mm2; wherein the foam portion (40) has pores which are sufficiently small so that the foam portion (40) can suck water residues away from the holes (31) in the head (30) like a sponge. At the same time however the pores are of such a size that they cannot independently retain water so that water residues, after removal of the microphone unit (1) from the water, run for the greatest part out of the foam portion (40) downwardly under the effect of the force of gravity; wherein the foam portion (40) has a predominant pore density of 15 ppi to 80 ppi.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
SENNHEISER ELECTRONIC GMBH & CO KGAM LABOR 1 WEDEMARK 30900

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Heine, Lars Schwulper, DE 8 30
Horn, Michael Harsum, DE 158 2303
Kurbis, Manfred Wedemark, DE 3 8
Staat, Raimund Burgwedel, DE 9 57

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