Directional acoustic sensor and method of detecting distance from sound source using the directional acoustic sensor
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United States of America
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Mar 1, 2022
Grant Date -
Nov 26, 2020
app pub date -
Sep 18, 2019
filing date -
Sep 18, 2019
priority date (Note) -
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Abstract
A directional acoustic sensor may include a plurality of resonators arranged in different directions; and a processor configured to calculate a time difference between a first signal that is received by the plurality of resonators directly from a sound source (e.g., a speaker) and a second signal that is received by the plurality of resonators from the sound source after being reflected on a wall surface around the sound source, and determine a distance between the sound source and the directional acoustic sensor based on the time difference.
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