Patent ID: 8559664
Filing Date: 2013-10-15
Classification: H04R

Abstract:
1. A microphone unit comprising: a vibratory diaphragm for detecting sound; a housing having an inner space for containing the vibratory diaphragm; at least one leg member projecting outwardly from the housing; and a base connected to the at least one leg member; and a cover for covering the housing in which the cover has a first opening and a second opening formed therein, wherein the vibratory diaphragm divides the inner space of the housing into a first inner space and a second inner space, wherein the housing has a first through-hole formed therein to connect the first inner space and an outer space outside the housing and a second through-hole formed therein to connect the second inner space and the outer space, wherein the at least one leg member is provided near the second through-hole, wherein the at least one leg member and the base secure a guide path to guide the sound to the vibratory diaphragm via the second inner space, wherein a gap to connect the second inner space and the outer space through the second through-hole is formed between the housing and the base or between the base and a part of the at least one leg member, wherein the guide path includes the gap, the second through-hole, and the second inner space, wherein in a space covered by the cover, a first sound path is formed which connects the first through-hole and the first opening, and a second sound path is also formed which is independent of the first sound path and connects the second through-hole and the second opening, and wherein the cover includes at least one plane portion, in which the first opening and the second opening are formed in the same plane portion.