Patent ID: 7286680
Filing Date: 2007-10-23
Classification: H04R

Abstract:
1. A microphone for converting sound into an electrical signal, comprising: a housing having an end cover with a sound port, said end cover being a separate component from said housing, said housing having an internal ridge integrally formed within the upper half of said housing near said end cover; a diaphragm directly attached to said end cover, said diaphragm for undergoing movement in response to said sound from said sound port; a backplate positioned against said internal ridge and positioned to oppose said diaphragm; and a spacer adjacent to said backplate, said diaphragm engaging said spacer when said end cover with said attached diaphragm is installed in said housing, said spacer separating said diaphragm from said backplate such that said diaphragm avoids contact with said backplate when said end cover with said attached diaphragm is installed in said housing.