Microphone for simultaneous noise sensing and speech pickup
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United States of America Patent
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Sep 12, 2006
Grant Date -
Apr 22, 2004
app pub date -
Oct 14, 2003
filing date -
Oct 15, 2002
priority date (Note) -
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Abstract
The invention provides a microphone for the simultaneous pickup of both ambient background noise and speech in vehicles such as automobiles, aircraft, and marine vessels. The apparatus provides a plurality of cartridges that simultaneously exhibit frequency and polar response characteristics tailored to noise and speech, respectively. In an embodiment of the invention, a single housing contains both a directional microphone and an omni-directional microphone for use in an automobile. In an alternative embodiment, a microphone array having both directional and omni-directional outputs are derived from microphones contained in a single enclosure.
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