CPC G01S 3/801 (2013.01) [G01S 3/803 (2013.01); H03H 9/132 (2013.01)] | 20 Claims |
1. A directional acoustic sensor comprises:
a support member; and
a plurality of resonators extending in a longitudinal direction with respect to the support member,
wherein each of the plurality of resonators comprises:
a driver configured to move based on an input sound signal; and
a sensor configured to sense a capacitance change based on an air gap that changes based on a movement of the driver.
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