Elastomeric shield for miniature microphones
First Claim
1. A portable communication device comprising a housing with a sound inlet arranged therein, the portable communication device further comprising a miniature microphone assembly including:
- a miniature microphone comprising a casing having a sound inlet arranged therein, andan elastic shield comprising an acoustic channel having a sound inlet and a sound outlet, the elastic shield further comprising a hollow portion surrounding at least part of the miniature microphone casing in a manner so that the sound outlet of the acoustic channel is aligned with the sound inlet of the miniature microphone casing, the elastic shield being composed of an electrically conductive material including carbon that is homogenously distributed in the entire elastic shield,wherein the interior of the housing of the portable communication device comprises a carrier substrate with an exposed electrically conducting pattern arranged thereon,wherein a peripheral end contour of the elastic shield forms an electrical connection to the exposed electrically conducting pattern so as to form an electrical connection between the elastic shield and the exposed electrically conducting pattern on the carrier substrate, andwherein the miniature microphone includes a mounting surface with contact pads that are adapted to be surface mounted to a printed circuit board.
5 Assignments
0 Petitions
Accused Products
Abstract
An elastic shield comprising an acoustic channel having a sound inlet and a sound outlet, and a hollow portion being adapted to at least partly surround a miniature microphone, or alternatively, arranged to follow an outer contour of a miniature microphone. The present invention further relates to a miniature microphone assembly comprising a miniature microphone having a sound inlet, and an elastic shield comprising an acoustic channel having a sound inlet and a sound outlet, the elastic shield further comprising a hollow portion housing at least part of the miniature microphone in a manner so that the sound outlet of the acoustic channel is aligned with the sound inlet of the miniature microphone.
95 Citations
13 Claims
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1. A portable communication device comprising a housing with a sound inlet arranged therein, the portable communication device further comprising a miniature microphone assembly including:
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a miniature microphone comprising a casing having a sound inlet arranged therein, and an elastic shield comprising an acoustic channel having a sound inlet and a sound outlet, the elastic shield further comprising a hollow portion surrounding at least part of the miniature microphone casing in a manner so that the sound outlet of the acoustic channel is aligned with the sound inlet of the miniature microphone casing, the elastic shield being composed of an electrically conductive material including carbon that is homogenously distributed in the entire elastic shield, wherein the interior of the housing of the portable communication device comprises a carrier substrate with an exposed electrically conducting pattern arranged thereon, wherein a peripheral end contour of the elastic shield forms an electrical connection to the exposed electrically conducting pattern so as to form an electrical connection between the elastic shield and the exposed electrically conducting pattern on the carrier substrate, and wherein the miniature microphone includes a mounting surface with contact pads that are adapted to be surface mounted to a printed circuit board. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A portable communication device comprising:
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a housing having a sound inlet arranged therein, a miniature microphone comprising a casing having a sound inlet arranged therein, and an elastic shield comprising an acoustic channel having a sound inlet and a sound outlet, the elastic shield further comprising a hollow portion surrounding at least part of the miniature microphone casing in a manner so that the sound outlet of the acoustic channel is aligned with the sound inlet of the miniature microphone casing, the elastic shield being composed of an electrically conductive material homogenously distributed in the entire elastic shield, wherein the miniature microphone includes a mounting surface with contact pads that are adapted to be surface mounted to a printed circuit board, wherein the interior of the housing of the portable communication device comprises a carrier substrate with an exposed electrically conducting pattern arranged thereon, and wherein a peripheral end contour of the elastic shield forms an electrical connection to the exposed electrically conducting pattern so as to form an electrical connection between the elastic shield and the exposed electrically conducting pattern on the carrier substrate.
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12. A portable communication device comprising a housing with a sound inlet arranged therein, the portable communication device further comprising a miniature microphone assembly including:
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a miniature microphone comprising a casing having a sound inlet arranged therein, and an elastic shield comprising an acoustic channel having a sound inlet and a sound outlet, the elastic shield further comprising a hollow portion surrounding at least part of the miniature microphone casing in a manner so that the sound outlet of the acoustic channel is aligned with the sound inlet of the miniature microphone casing, the elastic shield being composed of an electrically conductive material including carbon that is homogenously distributed in the entire elastic shield, wherein the interior of the housing of the portable communication device comprises a carrier substrate with an exposed electrically conducting pattern arranged thereon, wherein a peripheral end contour of the elastic shield forms an electrical connection to the exposed electrically conducting pattern so as to form an electrical connection between the elastic shield and the exposed electrically conducting pattern on the carrier substrate, and wherein the elastic shield surrounds exterior surfaces of the miniature microphone casing except a mounting surface opposite the sound inlet.
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13. A portable communication device comprising a housing with a sound inlet arranged therein, the portable communication device further comprising a miniature microphone assembly including:
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a miniature microphone comprising a casing having a sound inlet arranged therein, and an elastic shield comprising an acoustic channel having a sound inlet and a sound outlet, the elastic shield further comprising a hollow portion surrounding at least part of the miniature microphone casing in a manner so that the sound outlet of the acoustic channel is aligned with the sound inlet of the miniature microphone casing, the elastic shield being composed of an electrically conductive material including carbon that is homogenously distributed in the entire elastic shield, wherein the interior of the housing of the portable communication device comprises a carrier substrate with an exposed electrically conducting pattern arranged thereon, wherein a peripheral end contour of the elastic shield forms an electrical connection to the exposed electrically conducting pattern so as to form an electrical connection between the elastic shield and the exposed electrically conducting pattern on the carrier substrate, and wherein the miniature microphone comprises a substantially plane surface having disposed thereon a number of electrical contact pads adapted to contact corresponding contacts of a carrier substrate.
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Specification