Method and apparatus for measuring sound source distance using microphone array
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United States of America Patent
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May 4, 2010
Grant Date -
Apr 16, 2009
app pub date -
Apr 21, 2008
filing date -
Oct 16, 2007
priority date (Note) -
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Abstract
A method and apparatus for measuring a distance to a sound source. The method includes combining sound source signals input through at least two microphones and generating at least two microphone output signals, and performing an operation on the generated microphone output signals and calculating a distance to a sound source by using the relationship between a result of the operation and a frequency of the input sound source signals. Accordingly, regardless of the strength of a sound source, the distance to a sound source can be measured.
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