Microphone device, microphone unit, microphone structure, and electronic equipment using these
First Claim
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1. A microphone device comprising:
- a housing having a microphone installation chamber opening outward;
a microphone stored in the microphone installation chamber;
a cover member having a plurality of through holes and covering the microphone installation chamber; and
an acoustic transmission member partitioning the microphone installation chamber into a first space on the cover member side and a second space on the microphone side and, at the same time, transmitting an acoustic component,wherein the acoustic transmission member includes a fiber material obtained by intertwining raw materials, configured to contain fiber, with each other and air permeability of the fiber material is less than 0.5 s/100 cm3, andwherein the fiber material is sintered or is bonded together by thermal fusion bonding.
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Abstract
A microphone unit which can suppress collection of wind noise and minimize or eliminate digital signal processing has at least a microphone, a first acoustic transmissive material, and a second acoustic transmissive material, the first acoustic transmissive material is a fiber material in which fibers are intertwined with each other, the second acoustic transmissive material is a mesh-like member or a porous member having a plurality of holes, and the microphone is configured to be protected by the first acoustic transmissive material and the second acoustic transmissive material in this order.
23 Citations
25 Claims
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1. A microphone device comprising:
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a housing having a microphone installation chamber opening outward; a microphone stored in the microphone installation chamber; a cover member having a plurality of through holes and covering the microphone installation chamber; and an acoustic transmission member partitioning the microphone installation chamber into a first space on the cover member side and a second space on the microphone side and, at the same time, transmitting an acoustic component, wherein the acoustic transmission member includes a fiber material obtained by intertwining raw materials, configured to contain fiber, with each other and air permeability of the fiber material is less than 0.5 s/100 cm3, and wherein the fiber material is sintered or is bonded together by thermal fusion bonding. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A microphone structure comprising:
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a microphone; a cover member having a plurality of through holes; and
an acoustic transmission member interposed between the cover member and the microphone and transmitting an acoustic component,wherein the acoustic transmission member includes a fiber material obtained by intertwining raw materials, configured to contain fiber, with each other, and air permeability of the fiber material is less than 0.5 s/100 cm3, and wherein the fiber material is sintered or is bonded together by thermal fusion bonding. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A microphone structure comprising at least a microphone, a first acoustic transmissive material, and a second acoustic transmissive material, wherein
the first acoustic transmissive material is a fiber material in which fibers are intertwined with each other, the second acoustic transmissive material is a mesh-like member or a porous member including a plurality of holes, the microphone is protected from incoming noise first by the second acoustic transmissive material and then by the first acoustic transmissive material, and air permeability of the fiber material is less than 0.5 s/100 cm3, wherein the fiber material is sintered or is bonded together by thermal fusion bonding.
Specification